sp_tex_sample.c revision 779e9cb658dba4ef44fae7e8aa62409f7227f46c
10dc4eea64f56cc93e5359372b08b99a2d600273cBrian/************************************************************************** 20dc4eea64f56cc93e5359372b08b99a2d600273cBrian * 30dc4eea64f56cc93e5359372b08b99a2d600273cBrian * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 40dc4eea64f56cc93e5359372b08b99a2d600273cBrian * All Rights Reserved. 54bfe1c955fe679547c8a03119d1681e33593c768Michal Krol * Copyright 2008-2010 VMware, Inc. All rights reserved. 60dc4eea64f56cc93e5359372b08b99a2d600273cBrian * 70dc4eea64f56cc93e5359372b08b99a2d600273cBrian * Permission is hereby granted, free of charge, to any person obtaining a 80dc4eea64f56cc93e5359372b08b99a2d600273cBrian * copy of this software and associated documentation files (the 90dc4eea64f56cc93e5359372b08b99a2d600273cBrian * "Software"), to deal in the Software without restriction, including 100dc4eea64f56cc93e5359372b08b99a2d600273cBrian * without limitation the rights to use, copy, modify, merge, publish, 110dc4eea64f56cc93e5359372b08b99a2d600273cBrian * distribute, sub license, and/or sell copies of the Software, and to 120dc4eea64f56cc93e5359372b08b99a2d600273cBrian * permit persons to whom the Software is furnished to do so, subject to 130dc4eea64f56cc93e5359372b08b99a2d600273cBrian * the following conditions: 140dc4eea64f56cc93e5359372b08b99a2d600273cBrian * 150dc4eea64f56cc93e5359372b08b99a2d600273cBrian * The above copyright notice and this permission notice (including the 160dc4eea64f56cc93e5359372b08b99a2d600273cBrian * next paragraph) shall be included in all copies or substantial portions 170dc4eea64f56cc93e5359372b08b99a2d600273cBrian * of the Software. 180dc4eea64f56cc93e5359372b08b99a2d600273cBrian * 190dc4eea64f56cc93e5359372b08b99a2d600273cBrian * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 200dc4eea64f56cc93e5359372b08b99a2d600273cBrian * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 210dc4eea64f56cc93e5359372b08b99a2d600273cBrian * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 220dc4eea64f56cc93e5359372b08b99a2d600273cBrian * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 230dc4eea64f56cc93e5359372b08b99a2d600273cBrian * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 240dc4eea64f56cc93e5359372b08b99a2d600273cBrian * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 250dc4eea64f56cc93e5359372b08b99a2d600273cBrian * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 260dc4eea64f56cc93e5359372b08b99a2d600273cBrian * 270dc4eea64f56cc93e5359372b08b99a2d600273cBrian **************************************************************************/ 280dc4eea64f56cc93e5359372b08b99a2d600273cBrian 290dc4eea64f56cc93e5359372b08b99a2d600273cBrian/** 300dc4eea64f56cc93e5359372b08b99a2d600273cBrian * Texture sampling 310dc4eea64f56cc93e5359372b08b99a2d600273cBrian * 320dc4eea64f56cc93e5359372b08b99a2d600273cBrian * Authors: 330dc4eea64f56cc93e5359372b08b99a2d600273cBrian * Brian Paul 344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * Keith Whitwell 350dc4eea64f56cc93e5359372b08b99a2d600273cBrian */ 360dc4eea64f56cc93e5359372b08b99a2d600273cBrian 370dc4eea64f56cc93e5359372b08b99a2d600273cBrian#include "pipe/p_context.h" 380dc4eea64f56cc93e5359372b08b99a2d600273cBrian#include "pipe/p_defines.h" 3900c835918259f8d41c3f74eca679a972713b11b2Keith Whitwell#include "pipe/p_shader_tokens.h" 401a46dcc8a927dfb38ca1381e7b3dafb789f8257cBrian Paul#include "util/u_math.h" 414f25420bdd834e81a3e22733304efc5261c2998aBrian Paul#include "util/u_memory.h" 42d204659c8c725c02212ad4a49275c7447f2d02a6Brian Paul#include "sp_quad.h" /* only for #define QUAD_* tokens */ 43d204659c8c725c02212ad4a49275c7447f2d02a6Brian Paul#include "sp_tex_sample.h" 447670102468a55de50cf0cfa0b938d36aaf212f1fKeith Whitwell#include "sp_tex_tile_cache.h" 450dc4eea64f56cc93e5359372b08b99a2d600273cBrian 460dc4eea64f56cc93e5359372b08b99a2d600273cBrian 474250882ccf8326ba9074c671110370534489caa6Brian Paul/** Set to one to help debug texture sampling */ 484250882ccf8326ba9074c671110370534489caa6Brian Paul#define DEBUG_TEX 0 494250882ccf8326ba9074c671110370534489caa6Brian Paul 503ffd529ff19bf8dd7b022a267bf2afe44c7f0f65Brian Paul 5108f33a025100dea2d951e6d628891fe294b18082Brian/* 52b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul * Return fractional part of 'f'. Used for computing interpolation weights. 53b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul * Need to be careful with negative values. 54b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul * Note, if this function isn't perfect you'll sometimes see 1-pixel bands 55b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul * of improperly weighted linear-filtered textures. 5608f33a025100dea2d951e6d628891fe294b18082Brian * The tests/texwrap.c demo is a good test. 5708f33a025100dea2d951e6d628891fe294b18082Brian */ 58b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paulstatic INLINE float 59b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paulfrac(float f) 60b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul{ 61b37c54150058c07ab2d3db2d7e5891a457b51e76Brian Paul return f - floorf(f); 62b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul} 63b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul 6408f33a025100dea2d951e6d628891fe294b18082Brian 6508f33a025100dea2d951e6d628891fe294b18082Brian 6608f33a025100dea2d951e6d628891fe294b18082Brian/** 6708f33a025100dea2d951e6d628891fe294b18082Brian * Linear interpolation macro 6808f33a025100dea2d951e6d628891fe294b18082Brian */ 6938bee46e83b18ff4ad42d340b507b1a15b4326c7Brianstatic INLINE float 7038bee46e83b18ff4ad42d340b507b1a15b4326c7Brianlerp(float a, float v0, float v1) 7138bee46e83b18ff4ad42d340b507b1a15b4326c7Brian{ 7238bee46e83b18ff4ad42d340b507b1a15b4326c7Brian return v0 + a * (v1 - v0); 7338bee46e83b18ff4ad42d340b507b1a15b4326c7Brian} 740dc4eea64f56cc93e5359372b08b99a2d600273cBrian 750dc4eea64f56cc93e5359372b08b99a2d600273cBrian 760dc4eea64f56cc93e5359372b08b99a2d600273cBrian/** 77fd60bf8e33bbcba7b7749ae5a4285bad60769b9bBrian Paul * Do 2D/bilinear interpolation of float values. 780dc4eea64f56cc93e5359372b08b99a2d600273cBrian * v00, v10, v01 and v11 are typically four texture samples in a square/box. 790dc4eea64f56cc93e5359372b08b99a2d600273cBrian * a and b are the horizontal and vertical interpolants. 800dc4eea64f56cc93e5359372b08b99a2d600273cBrian * It's important that this function is inlined when compiled with 810dc4eea64f56cc93e5359372b08b99a2d600273cBrian * optimization! If we find that's not true on some systems, convert 820dc4eea64f56cc93e5359372b08b99a2d600273cBrian * to a macro. 830dc4eea64f56cc93e5359372b08b99a2d600273cBrian */ 84b4480285ed5098f1c862690ee105dd46f5e6cd1eBrianstatic INLINE float 85b4480285ed5098f1c862690ee105dd46f5e6cd1eBrianlerp_2d(float a, float b, 86b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian float v00, float v10, float v01, float v11) 870dc4eea64f56cc93e5359372b08b99a2d600273cBrian{ 8838bee46e83b18ff4ad42d340b507b1a15b4326c7Brian const float temp0 = lerp(a, v00, v10); 8938bee46e83b18ff4ad42d340b507b1a15b4326c7Brian const float temp1 = lerp(a, v01, v11); 9038bee46e83b18ff4ad42d340b507b1a15b4326c7Brian return lerp(b, temp0, temp1); 9138bee46e83b18ff4ad42d340b507b1a15b4326c7Brian} 9238bee46e83b18ff4ad42d340b507b1a15b4326c7Brian 9338bee46e83b18ff4ad42d340b507b1a15b4326c7Brian 9438bee46e83b18ff4ad42d340b507b1a15b4326c7Brian/** 9538bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * As above, but 3D interpolation of 8 values. 9638bee46e83b18ff4ad42d340b507b1a15b4326c7Brian */ 9738bee46e83b18ff4ad42d340b507b1a15b4326c7Brianstatic INLINE float 9838bee46e83b18ff4ad42d340b507b1a15b4326c7Brianlerp_3d(float a, float b, float c, 9938bee46e83b18ff4ad42d340b507b1a15b4326c7Brian float v000, float v100, float v010, float v110, 10038bee46e83b18ff4ad42d340b507b1a15b4326c7Brian float v001, float v101, float v011, float v111) 10138bee46e83b18ff4ad42d340b507b1a15b4326c7Brian{ 10238bee46e83b18ff4ad42d340b507b1a15b4326c7Brian const float temp0 = lerp_2d(a, b, v000, v100, v010, v110); 10338bee46e83b18ff4ad42d340b507b1a15b4326c7Brian const float temp1 = lerp_2d(a, b, v001, v101, v011, v111); 10438bee46e83b18ff4ad42d340b507b1a15b4326c7Brian return lerp(c, temp0, temp1); 1050dc4eea64f56cc93e5359372b08b99a2d600273cBrian} 1060dc4eea64f56cc93e5359372b08b99a2d600273cBrian 1070dc4eea64f56cc93e5359372b08b99a2d600273cBrian 10838bee46e83b18ff4ad42d340b507b1a15b4326c7Brian 1090dc4eea64f56cc93e5359372b08b99a2d600273cBrian/** 110b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul * Compute coord % size for repeat wrap modes. 111e31f0f996537046228602a251706613ca4163209Brian Paul * Note that if coord is negative, coord % size doesn't give the right 112e31f0f996537046228602a251706613ca4163209Brian Paul * value. To avoid that problem we add a large multiple of the size 113e31f0f996537046228602a251706613ca4163209Brian Paul * (rather than using a conditional). 1140dc4eea64f56cc93e5359372b08b99a2d600273cBrian */ 115b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paulstatic INLINE int 116b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paulrepeat(int coord, unsigned size) 117b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul{ 118e31f0f996537046228602a251706613ca4163209Brian Paul return (coord + size * 1024) % size; 119b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul} 12008f33a025100dea2d951e6d628891fe294b18082Brian 12108f33a025100dea2d951e6d628891fe294b18082Brian 12208f33a025100dea2d951e6d628891fe294b18082Brian/** 12338bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * Apply texture coord wrapping mode and return integer texture indexes 12438bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * for a vector of four texcoords (S or T or P). 12508f33a025100dea2d951e6d628891fe294b18082Brian * \param wrapMode PIPE_TEX_WRAP_x 12638bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * \param s the incoming texcoords 12708f33a025100dea2d951e6d628891fe294b18082Brian * \param size the texture image size 12838bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * \param icoord returns the integer texcoords 12908f33a025100dea2d951e6d628891fe294b18082Brian * \return integer texture index 13008f33a025100dea2d951e6d628891fe294b18082Brian */ 1314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 132e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_nearest_repeat(const float s[4], unsigned size, int icoord[4]) 1334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 1344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 1354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* s limited to [0,1) */ 1364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* i limited to [0,size-1] */ 1374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 1384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int i = util_ifloor(s[ch] * size); 139b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul icoord[ch] = repeat(i, size); 1404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 1424fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1434fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 145e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_nearest_clamp(const float s[4], unsigned size, int icoord[4]) 1460dc4eea64f56cc93e5359372b08b99a2d600273cBrian{ 14738bee46e83b18ff4ad42d340b507b1a15b4326c7Brian uint ch; 1484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* s limited to [0,1] */ 1494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* i limited to [0,size-1] */ 1504fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 1514fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (s[ch] <= 0.0F) 1524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = 0; 1534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (s[ch] >= 1.0F) 1544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = size - 1; 1554fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 1564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = util_ifloor(s[ch] * size); 1574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 1594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 162e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_nearest_clamp_to_edge(const float s[4], unsigned size, int icoord[4]) 1634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 1644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 1654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* s limited to [min,max] */ 1664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* i limited to [0, size-1] */ 1674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float min = 1.0F / (2.0F * size); 1684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float max = 1.0F - min; 1694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 1704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (s[ch] < min) 1714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = 0; 1724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (s[ch] > max) 1734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = size - 1; 1744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 1754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = util_ifloor(s[ch] * size); 1764fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 1784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1804fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 181e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_nearest_clamp_to_border(const float s[4], unsigned size, int icoord[4]) 1824fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 1834fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 1844fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* s limited to [min,max] */ 1854fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* i limited to [-1, size] */ 1864fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float min = -1.0F / (2.0F * size); 1874fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float max = 1.0F - min; 1884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 1894fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (s[ch] <= min) 1904fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = -1; 1914fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (s[ch] >= max) 1924fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = size; 1934fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 1944fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = util_ifloor(s[ch] * size); 1954fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1964fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 1974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 198e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 1994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 200e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_nearest_mirror_repeat(const float s[4], unsigned size, int icoord[4]) 2014fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 2024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 2034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float min = 1.0F / (2.0F * size); 2044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float max = 1.0F - min; 2054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 2064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const int flr = util_ifloor(s[ch]); 207b37c54150058c07ab2d3db2d7e5891a457b51e76Brian Paul float u = frac(s[ch]); 2084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (flr & 1) 209b37c54150058c07ab2d3db2d7e5891a457b51e76Brian Paul u = 1.0F - u; 2104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (u < min) 2114fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = 0; 2124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (u > max) 2134fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = size - 1; 2144fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 2154fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = util_ifloor(u * size); 2164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 2174fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 2184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 219e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 2204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 221e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_nearest_mirror_clamp(const float s[4], unsigned size, int icoord[4]) 2224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 2234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 2244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 22508f33a025100dea2d951e6d628891fe294b18082Brian /* s limited to [0,1] */ 22608f33a025100dea2d951e6d628891fe294b18082Brian /* i limited to [0,size-1] */ 2274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float u = fabsf(s[ch]); 2284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (u <= 0.0F) 2294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = 0; 2304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (u >= 1.0F) 2314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = size - 1; 2324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 2334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = util_ifloor(u * size); 2344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 2354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 2364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 237e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 2384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 2394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_nearest_mirror_clamp_to_edge(const float s[4], unsigned size, 240e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul int icoord[4]) 2414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 2424fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 2434fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* s limited to [min,max] */ 2444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* i limited to [0, size-1] */ 2454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float min = 1.0F / (2.0F * size); 2464fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float max = 1.0F - min; 2474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 2484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float u = fabsf(s[ch]); 2494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (u < min) 2504fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = 0; 2514fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (u > max) 2524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = size - 1; 2534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 2544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = util_ifloor(u * size); 2554fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 2564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 2574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 2584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 2594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 2604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_nearest_mirror_clamp_to_border(const float s[4], unsigned size, 2614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord[4]) 2624fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 2634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 2644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* s limited to [min,max] */ 2654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* i limited to [0, size-1] */ 2664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float min = -1.0F / (2.0F * size); 2674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float max = 1.0F - min; 2684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 2694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float u = fabsf(s[ch]); 2704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (u < min) 2714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = -1; 2724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (u > max) 2734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = size; 2744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 2754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = util_ifloor(u * size); 2760dc4eea64f56cc93e5359372b08b99a2d600273cBrian } 2770dc4eea64f56cc93e5359372b08b99a2d600273cBrian} 2780dc4eea64f56cc93e5359372b08b99a2d600273cBrian 27908f33a025100dea2d951e6d628891fe294b18082Brian 28008f33a025100dea2d951e6d628891fe294b18082Brian/** 28138bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * Used to compute texel locations for linear sampling for four texcoords. 28208f33a025100dea2d951e6d628891fe294b18082Brian * \param wrapMode PIPE_TEX_WRAP_x 28338bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * \param s the texcoords 28408f33a025100dea2d951e6d628891fe294b18082Brian * \param size the texture image size 28538bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * \param icoord0 returns first texture indexes 28638bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * \param icoord1 returns second texture indexes (usually icoord0 + 1) 28738bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * \param w returns blend factor/weight between texture indexes 28838bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * \param icoord returns the computed integer texture coords 28908f33a025100dea2d951e6d628891fe294b18082Brian */ 2904fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 2914fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_repeat(const float s[4], unsigned size, 2924fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord0[4], int icoord1[4], float w[4]) 2934fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 2944fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 2954fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 2964fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = s[ch] * size - 0.5F; 297b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul icoord0[ch] = repeat(util_ifloor(u), size); 298b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul icoord1[ch] = repeat(icoord0[ch] + 1, size); 299b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 3004fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 3014fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 3024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 303e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 3044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 3054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_clamp(const float s[4], unsigned size, 30638bee46e83b18ff4ad42d340b507b1a15b4326c7Brian int icoord0[4], int icoord1[4], float w[4]) 3070dc4eea64f56cc93e5359372b08b99a2d600273cBrian{ 30838bee46e83b18ff4ad42d340b507b1a15b4326c7Brian uint ch; 3094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 3104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = CLAMP(s[ch], 0.0F, 1.0F); 3114fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = u * size - 0.5f; 3124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 3134fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 314b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 3154fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 3164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 31738bee46e83b18ff4ad42d340b507b1a15b4326c7Brian 318e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 3194fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 3204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_clamp_to_edge(const float s[4], unsigned size, 3214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord0[4], int icoord1[4], float w[4]) 3224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 3234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 3244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 3254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = CLAMP(s[ch], 0.0F, 1.0F); 3264fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = u * size - 0.5f; 3274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 3284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 3294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (icoord0[ch] < 0) 3304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = 0; 3314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (icoord1[ch] >= (int) size) 3324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = size - 1; 333b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 3344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 3354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 3364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 337e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 3384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 3394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_clamp_to_border(const float s[4], unsigned size, 3404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord0[4], int icoord1[4], float w[4]) 3414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 3424fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float min = -1.0F / (2.0F * size); 3434fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float max = 1.0F - min; 3444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 3454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 3464fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = CLAMP(s[ch], min, max); 3474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = u * size - 0.5f; 3484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 3494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 350b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 3514fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 3524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 3534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 3544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 3554fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 3564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_mirror_repeat(const float s[4], unsigned size, 3574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord0[4], int icoord1[4], float w[4]) 3584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 3594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 3604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 3614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const int flr = util_ifloor(s[ch]); 362b37c54150058c07ab2d3db2d7e5891a457b51e76Brian Paul float u = frac(s[ch]); 3634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (flr & 1) 364b37c54150058c07ab2d3db2d7e5891a457b51e76Brian Paul u = 1.0F - u; 3654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = u * size - 0.5F; 3664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 3674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 3684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (icoord0[ch] < 0) 3694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = 0; 3704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (icoord1[ch] >= (int) size) 3714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = size - 1; 372b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 3734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 3744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 3754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 376e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 3774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 3784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_mirror_clamp(const float s[4], unsigned size, 3794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord0[4], int icoord1[4], float w[4]) 3804fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 3814fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 3824fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 3834fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = fabsf(s[ch]); 3844fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (u >= 1.0F) 3854fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = (float) size; 3864fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 3874fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u *= size; 3884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u -= 0.5F; 3894fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 3904fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 391b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 3924fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 3934fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 3944fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 395e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 3964fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 3974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_mirror_clamp_to_edge(const float s[4], unsigned size, 3984fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord0[4], int icoord1[4], float w[4]) 3994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 4004fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 4014fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 4024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = fabsf(s[ch]); 4034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (u >= 1.0F) 4044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = (float) size; 4054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 4064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u *= size; 4074fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u -= 0.5F; 4084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 4094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 4104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (icoord0[ch] < 0) 4114fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = 0; 4124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (icoord1[ch] >= (int) size) 4134fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = size - 1; 414b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 4154fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 4164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 4174fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 418e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 4194fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 4204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_mirror_clamp_to_border(const float s[4], unsigned size, 4214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord0[4], int icoord1[4], float w[4]) 4224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 4234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float min = -1.0F / (2.0F * size); 4244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float max = 1.0F - min; 4254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 4264fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 4274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = fabsf(s[ch]); 4284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (u <= min) 4294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = min * size; 4304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (u >= max) 4314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = max * size; 4324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 4334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u *= size; 4344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u -= 0.5F; 4354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 4364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 437b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 4380dc4eea64f56cc93e5359372b08b99a2d600273cBrian } 4390dc4eea64f56cc93e5359372b08b99a2d600273cBrian} 4400dc4eea64f56cc93e5359372b08b99a2d600273cBrian 4410dc4eea64f56cc93e5359372b08b99a2d600273cBrian 442b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian/** 443b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul * PIPE_TEX_WRAP_CLAMP for nearest sampling, unnormalized coords. 444b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian */ 4454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 446e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_nearest_unorm_clamp(const float s[4], unsigned size, int icoord[4]) 447b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian{ 44838bee46e83b18ff4ad42d340b507b1a15b4326c7Brian uint ch; 4494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 4504fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int i = util_ifloor(s[ch]); 4514fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch]= CLAMP(i, 0, (int) size-1); 4524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 4534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 4544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 455e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 456e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul/** 457b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul * PIPE_TEX_WRAP_CLAMP_TO_BORDER for nearest sampling, unnormalized coords. 4584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 4594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 4604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_nearest_unorm_clamp_to_border(const float s[4], unsigned size, 461e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul int icoord[4]) 4624fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 4634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 4644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 465b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul icoord[ch]= util_ifloor( CLAMP(s[ch], -0.5F, (float) size + 0.5F) ); 466b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul } 467b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul} 468b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul 469b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul 470b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul/** 471b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul * PIPE_TEX_WRAP_CLAMP_TO_EDGE for nearest sampling, unnormalized coords. 472b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul */ 473b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paulstatic void 474b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paulwrap_nearest_unorm_clamp_to_edge(const float s[4], unsigned size, 475b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul int icoord[4]) 476b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul{ 477b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul uint ch; 478b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul for (ch = 0; ch < 4; ch++) { 4794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch]= util_ifloor( CLAMP(s[ch], 0.5F, (float) size - 0.5F) ); 480b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 481b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian} 482b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 483b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 484b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian/** 485b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul * PIPE_TEX_WRAP_CLAMP for linear sampling, unnormalized coords. 486b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian */ 4874fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 4884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_unorm_clamp(const float s[4], unsigned size, 489e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul int icoord0[4], int icoord1[4], float w[4]) 490b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian{ 49138bee46e83b18ff4ad42d340b507b1a15b4326c7Brian uint ch; 4924fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 4934fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* Not exactly what the spec says, but it matches NVIDIA output */ 4944fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = CLAMP(s[ch] - 0.5F, 0.0f, (float) size - 1.0f); 4954fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 4964fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 497b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 498b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 499b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian} 500b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 501e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 502b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul/** 503b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul * PIPE_TEX_WRAP_CLAMP_TO_BORDER for linear sampling, unnormalized coords. 504b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul */ 5054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 506e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_linear_unorm_clamp_to_border(const float s[4], unsigned size, 507e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul int icoord0[4], int icoord1[4], float w[4]) 50834a48abd5ff82ce9748fc29191e35a0985d47c5fBrian{ 5094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 5104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 511b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul float u = CLAMP(s[ch], -0.5F, (float) size + 0.5F); 512b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul u -= 0.5F; 513b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul icoord0[ch] = util_ifloor(u); 514b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul icoord1[ch] = icoord0[ch] + 1; 515b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul if (icoord1[ch] > (int) size - 1) 516b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul icoord1[ch] = size - 1; 517b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul w[ch] = frac(u); 518b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul } 519b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul} 520b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul 521b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul 522b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul/** 523b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul * PIPE_TEX_WRAP_CLAMP_TO_EDGE for linear sampling, unnormalized coords. 524b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul */ 525b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paulstatic void 526b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paulwrap_linear_unorm_clamp_to_edge(const float s[4], unsigned size, 527b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul int icoord0[4], int icoord1[4], float w[4]) 528b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul{ 529b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul uint ch; 530b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul for (ch = 0; ch < 4; ch++) { 531b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul float u = CLAMP(s[ch], +0.5F, (float) size - 0.5F); 5324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u -= 0.5F; 5334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 5344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 5354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (icoord1[ch] > (int) size - 1) 5364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = size - 1; 537b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 53834a48abd5ff82ce9748fc29191e35a0985d47c5fBrian } 5394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 5404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 54134a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 542779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul/** 543779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul * Do coordinate to array index conversion. For array textures. 544779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul */ 545779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paulstatic INLINE void 546779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paulwrap_array_layer(const float coord[4], unsigned size, int layer[4]) 547779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul{ 548779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul uint ch; 549779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul for (ch = 0; ch < 4; ch++) { 550779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul int c = util_ifloor(coord[ch] + 0.5F); 551779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul layer[ch] = CLAMP(c, 0, size - 1); 552779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul } 553779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul} 554779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 55534a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 556b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian/** 557b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian * Examine the quad's texture coordinates to compute the partial 558b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian * derivatives w.r.t X and Y, then compute lambda (level of detail). 559b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian */ 560b4480285ed5098f1c862690ee105dd46f5e6cd1eBrianstatic float 561f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paulcompute_lambda_1d(const struct sp_sampler_variant *samp, 5624fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 5634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 5644bfe1c955fe679547c8a03119d1681e33593c768Michal Krol const float p[QUAD_SIZE]) 565b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian{ 56621148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 5674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]); 5684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]); 569683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell float rho = MAX2(dsdx, dsdy) * texture->width0; 570b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian 5714bfe1c955fe679547c8a03119d1681e33593c768Michal Krol return util_fast_log2(rho); 572b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian} 573b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian 574e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 5754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic float 576f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paulcompute_lambda_2d(const struct sp_sampler_variant *samp, 5774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 5784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 5794bfe1c955fe679547c8a03119d1681e33593c768Michal Krol const float p[QUAD_SIZE]) 58009a1b912605ff48c8782dcc5aae55ac77e27037bBrian{ 58121148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 5824fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]); 5834fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]); 5844fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dtdx = fabsf(t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]); 5854fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dtdy = fabsf(t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]); 586683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell float maxx = MAX2(dsdx, dsdy) * texture->width0; 587683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell float maxy = MAX2(dtdx, dtdy) * texture->height0; 5884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rho = MAX2(maxx, maxy); 589c7722edcfdf36e0d0bfdc51013ecb199fc7fa9f6Brian 5904bfe1c955fe679547c8a03119d1681e33593c768Michal Krol return util_fast_log2(rho); 59109a1b912605ff48c8782dcc5aae55ac77e27037bBrian} 59209a1b912605ff48c8782dcc5aae55ac77e27037bBrian 59308f33a025100dea2d951e6d628891fe294b18082Brian 5944fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic float 595f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paulcompute_lambda_3d(const struct sp_sampler_variant *samp, 5964fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 5974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 5984bfe1c955fe679547c8a03119d1681e33593c768Michal Krol const float p[QUAD_SIZE]) 59909a1b912605ff48c8782dcc5aae55ac77e27037bBrian{ 60021148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 6014fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]); 6024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]); 6034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dtdx = fabsf(t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]); 6044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dtdy = fabsf(t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]); 6054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dpdx = fabsf(p[QUAD_BOTTOM_RIGHT] - p[QUAD_BOTTOM_LEFT]); 6064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dpdy = fabsf(p[QUAD_TOP_LEFT] - p[QUAD_BOTTOM_LEFT]); 607683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell float maxx = MAX2(dsdx, dsdy) * texture->width0; 608683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell float maxy = MAX2(dtdx, dtdy) * texture->height0; 609683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell float maxz = MAX2(dpdx, dpdy) * texture->depth0; 6104bfe1c955fe679547c8a03119d1681e33593c768Michal Krol float rho; 61100c835918259f8d41c3f74eca679a972713b11b2Keith Whitwell 6124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell rho = MAX2(maxx, maxy); 6134fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell rho = MAX2(rho, maxz); 614c7722edcfdf36e0d0bfdc51013ecb199fc7fa9f6Brian 6154bfe1c955fe679547c8a03119d1681e33593c768Michal Krol return util_fast_log2(rho); 61609a1b912605ff48c8782dcc5aae55ac77e27037bBrian} 61709a1b912605ff48c8782dcc5aae55ac77e27037bBrian 61808f33a025100dea2d951e6d628891fe294b18082Brian 619e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul/** 620e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul * Compute lambda for a vertex texture sampler. 6214bfe1c955fe679547c8a03119d1681e33593c768Michal Krol * Since there aren't derivatives to use, just return 0. 622e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul */ 6234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic float 624f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paulcompute_lambda_vert(const struct sp_sampler_variant *samp, 6254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 6264fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 6274bfe1c955fe679547c8a03119d1681e33593c768Michal Krol const float p[QUAD_SIZE]) 6284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 6294bfe1c955fe679547c8a03119d1681e33593c768Michal Krol return 0.0f; 6304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 6314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 6324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 6334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 6344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell/** 6354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * Get a texel from a texture, using the texture tile cache. 6364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * 63781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell * \param addr the template tex address containing cube, z, face info. 6384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * \param x the x coord of texel within 2D image 639b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian * \param y the y coord of texel within 2D image 640b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian * \param rgba the quad to put the texel/color into 64170eb7996f265f3634dabda078f13d1be3533cc65Brian * 64280c78472ad43f4288c9ef5076074ba9d31a39885Keith Whitwell * XXX maybe move this into sp_tex_tile_cache.c and merge with the 64370eb7996f265f3634dabda078f13d1be3533cc65Brian * sp_get_cached_tile_tex() function. Also, get 4 texels instead of 1... 644b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian */ 64581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 64681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 64781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 64881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 64981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellstatic INLINE const float * 650f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paulget_texel_2d_no_border(const struct sp_sampler_variant *samp, 65181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr, int x, int y) 652b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian{ 65381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const struct softpipe_tex_cached_tile *tile; 65481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 65581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.x = x / TILE_SIZE; 65681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.y = y / TILE_SIZE; 65781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell y %= TILE_SIZE; 65881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell x %= TILE_SIZE; 65981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 66081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tile = sp_get_cached_tile_tex(samp->cache, addr); 66181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 66281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell return &tile->data.color[y][x][0]; 66381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell} 66481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 66581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 66681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellstatic INLINE const float * 667f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paulget_texel_2d(const struct sp_sampler_variant *samp, 66881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr, int x, int y) 66981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell{ 67021148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 67181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell unsigned level = addr.bits.level; 67281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 673683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell if (x < 0 || x >= (int) u_minify(texture->width0, level) || 674683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell y < 0 || y >= (int) u_minify(texture->height0, level)) { 67542a0967a36ff3331de96289125243e6afeb5d560Brian Paul return samp->sampler->border_color; 67681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell } 67781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell else { 67881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell return get_texel_2d_no_border( samp, addr, x, y ); 67981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell } 68081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell} 6816142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 6826142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 68381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell/* Gather a quad of adjacent texels within a tile: 68481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell */ 68581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellstatic INLINE void 686f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paulget_texel_quad_2d_no_border_single_tile(const struct sp_sampler_variant *samp, 68781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr, 68881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell unsigned x, unsigned y, 68981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *out[4]) 69081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell{ 69181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const struct softpipe_tex_cached_tile *tile; 69281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 69381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.x = x / TILE_SIZE; 69481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.y = y / TILE_SIZE; 6956142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell y %= TILE_SIZE; 6966142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell x %= TILE_SIZE; 69781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 69881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tile = sp_get_cached_tile_tex(samp->cache, addr); 6996142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 7006142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell out[0] = &tile->data.color[y ][x ][0]; 7016142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell out[1] = &tile->data.color[y ][x+1][0]; 7026142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell out[2] = &tile->data.color[y+1][x ][0]; 7036142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell out[3] = &tile->data.color[y+1][x+1][0]; 7046142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell} 7056142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 70681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 70781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell/* Gather a quad of potentially non-adjacent texels: 70881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell */ 70981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellstatic INLINE void 710f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paulget_texel_quad_2d_no_border(const struct sp_sampler_variant *samp, 71181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr, 71281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell int x0, int y0, 71381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell int x1, int y1, 71481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *out[4]) 71581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell{ 71681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[0] = get_texel_2d_no_border( samp, addr, x0, y0 ); 71781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[1] = get_texel_2d_no_border( samp, addr, x1, y0 ); 71881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[2] = get_texel_2d_no_border( samp, addr, x0, y1 ); 71981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[3] = get_texel_2d_no_border( samp, addr, x1, y1 ); 72081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell} 72181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 72281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell/* Can involve a lot of unnecessary checks for border color: 72381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell */ 72481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellstatic INLINE void 725f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paulget_texel_quad_2d(const struct sp_sampler_variant *samp, 72681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr, 72781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell int x0, int y0, 72881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell int x1, int y1, 72981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *out[4]) 73081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell{ 73181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[0] = get_texel_2d( samp, addr, x0, y0 ); 73281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[1] = get_texel_2d( samp, addr, x1, y0 ); 73381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[3] = get_texel_2d( samp, addr, x1, y1 ); 73481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[2] = get_texel_2d( samp, addr, x0, y1 ); 73581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell} 73681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 73781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 73881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 739f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul/* 3d variants: 74081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell */ 7416142de393fe34ff0866f8489f1292eb473276f11Keith Whitwellstatic INLINE const float * 742f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paulget_texel_3d_no_border(const struct sp_sampler_variant *samp, 743e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul union tex_tile_address addr, int x, int y, int z) 7446142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell{ 745153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell const struct softpipe_tex_cached_tile *tile; 7466142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 747153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.bits.x = x / TILE_SIZE; 748153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.bits.y = y / TILE_SIZE; 74981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.z = z; 7506142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell y %= TILE_SIZE; 7516142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell x %= TILE_SIZE; 7526142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 753153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell tile = sp_get_cached_tile_tex(samp->cache, addr); 754153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell 7556142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell return &tile->data.color[y][x][0]; 7566142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell} 7576142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 7586142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 75981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellstatic INLINE const float * 760f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paulget_texel_3d(const struct sp_sampler_variant *samp, 761e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul union tex_tile_address addr, int x, int y, int z) 762b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian{ 76321148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 76481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell unsigned level = addr.bits.level; 7650b9e96fae9493d5d58f046e01c983a3c4267090eBrian 766683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell if (x < 0 || x >= (int) u_minify(texture->width0, level) || 767683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell y < 0 || y >= (int) u_minify(texture->height0, level) || 768683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell z < 0 || z >= (int) u_minify(texture->depth0, level)) { 76942a0967a36ff3331de96289125243e6afeb5d560Brian Paul return samp->sampler->border_color; 770ea0007cc4ca077c7e3951c4fda122bd242728d70Brian Paul } 771ea0007cc4ca077c7e3951c4fda122bd242728d70Brian Paul else { 77281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell return get_texel_3d_no_border( samp, addr, x, y, z ); 773ea0007cc4ca077c7e3951c4fda122bd242728d70Brian Paul } 774b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian} 775b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian 776b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian 77775276ea316610a5737f2115326482024aa09d02aroot/** 77875276ea316610a5737f2115326482024aa09d02aroot * Given the logbase2 of a mipmap's base level size and a mipmap level, 77975276ea316610a5737f2115326482024aa09d02aroot * return the size (in texels) of that mipmap level. 78075276ea316610a5737f2115326482024aa09d02aroot * For example, if level[0].width = 256 then base_pot will be 8. 78175276ea316610a5737f2115326482024aa09d02aroot * If level = 2, then we'll return 64 (the width at level=2). 78275276ea316610a5737f2115326482024aa09d02aroot * Return 1 if level > base_pot. 78375276ea316610a5737f2115326482024aa09d02aroot */ 78475276ea316610a5737f2115326482024aa09d02arootstatic INLINE unsigned 78575276ea316610a5737f2115326482024aa09d02arootpot_level_size(unsigned base_pot, unsigned level) 78675276ea316610a5737f2115326482024aa09d02aroot{ 78775276ea316610a5737f2115326482024aa09d02aroot return (base_pot >= level) ? (1 << (base_pot - level)) : 1; 78875276ea316610a5737f2115326482024aa09d02aroot} 78975276ea316610a5737f2115326482024aa09d02aroot 79075276ea316610a5737f2115326482024aa09d02aroot 7914250882ccf8326ba9074c671110370534489caa6Brian Paulstatic void 7924250882ccf8326ba9074c671110370534489caa6Brian Paulprint_sample(const char *function, float rgba[NUM_CHANNELS][QUAD_SIZE]) 7934250882ccf8326ba9074c671110370534489caa6Brian Paul{ 7944250882ccf8326ba9074c671110370534489caa6Brian Paul debug_printf("%s %g %g %g %g, %g %g %g %g, %g %g %g %g, %g %g %g %g\n", 7954250882ccf8326ba9074c671110370534489caa6Brian Paul function, 7964250882ccf8326ba9074c671110370534489caa6Brian Paul rgba[0][0], rgba[1][0], rgba[2][0], rgba[3][0], 7974250882ccf8326ba9074c671110370534489caa6Brian Paul rgba[0][1], rgba[1][1], rgba[2][1], rgba[3][1], 7984250882ccf8326ba9074c671110370534489caa6Brian Paul rgba[0][2], rgba[1][2], rgba[2][2], rgba[3][2], 7994250882ccf8326ba9074c671110370534489caa6Brian Paul rgba[0][3], rgba[1][3], rgba[2][3], rgba[3][3]); 8004250882ccf8326ba9074c671110370534489caa6Brian Paul} 8014250882ccf8326ba9074c671110370534489caa6Brian Paul 8024250882ccf8326ba9074c671110370534489caa6Brian Paul 80381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell/* Some image-filter fastpaths: 80481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell */ 805efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paulstatic INLINE void 8064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellimg_filter_2d_linear_repeat_POT(struct tgsi_sampler *tgsi_sampler, 807e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float s[QUAD_SIZE], 808e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float t[QUAD_SIZE], 809e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float p[QUAD_SIZE], 8104440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 8114440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 812e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul float rgba[NUM_CHANNELS][QUAD_SIZE]) 8136142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell{ 814f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 8156142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell unsigned j; 8166142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell unsigned level = samp->level; 81775276ea316610a5737f2115326482024aa09d02aroot unsigned xpot = pot_level_size(samp->xpot, level); 81875276ea316610a5737f2115326482024aa09d02aroot unsigned ypot = pot_level_size(samp->ypot, level); 8191fd40e506c2207664f0c3f435e4614472ea4c540Keith Whitwell unsigned xmax = (xpot - 1) & (TILE_SIZE - 1); /* MIN2(TILE_SIZE, xpot) - 1; */ 8201fd40e506c2207664f0c3f435e4614472ea4c540Keith Whitwell unsigned ymax = (ypot - 1) & (TILE_SIZE - 1); /* MIN2(TILE_SIZE, ypot) - 1; */ 821153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell union tex_tile_address addr; 822153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell 823153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.value = 0; 824153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.bits.level = samp->level; 825153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell 8266142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 8276142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int c; 8286142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8296142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell float u = s[j] * xpot - 0.5F; 8306142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell float v = t[j] * ypot - 0.5F; 8316142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8326142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int uflr = util_ifloor(u); 8336142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int vflr = util_ifloor(v); 8346142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8356142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell float xw = u - (float)uflr; 8366142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell float yw = v - (float)vflr; 8376142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8386142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int x0 = uflr & (xpot - 1); 8396142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int y0 = vflr & (ypot - 1); 8406142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 841153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell const float *tx[4]; 8426142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8436142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell /* Can we fetch all four at once: 8446142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell */ 845e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul if (x0 < xmax && y0 < ymax) { 84681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell get_texel_quad_2d_no_border_single_tile(samp, addr, x0, y0, tx); 8476142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 848e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul else { 8494f409da3456070946eda2d8ff5153b3b4306bb46Keith Whitwell unsigned x1 = (x0 + 1) & (xpot - 1); 8504f409da3456070946eda2d8ff5153b3b4306bb46Keith Whitwell unsigned y1 = (y0 + 1) & (ypot - 1); 85181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell get_texel_quad_2d_no_border(samp, addr, x0, y0, x1, y1, tx); 8526142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 8536142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8546142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell /* interpolate R, G, B, A */ 8556142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell for (c = 0; c < 4; c++) { 8566142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell rgba[c][j] = lerp_2d(xw, yw, 8576142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell tx[0][c], tx[1][c], 8586142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell tx[2][c], tx[3][c]); 8596142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 8606142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 8614250882ccf8326ba9074c671110370534489caa6Brian Paul 8624250882ccf8326ba9074c671110370534489caa6Brian Paul if (DEBUG_TEX) { 8634250882ccf8326ba9074c671110370534489caa6Brian Paul print_sample(__FUNCTION__, rgba); 8644250882ccf8326ba9074c671110370534489caa6Brian Paul } 8656142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell} 8666142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8676142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic INLINE void 8694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellimg_filter_2d_nearest_repeat_POT(struct tgsi_sampler *tgsi_sampler, 8704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 8714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 8724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 8734440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 8744440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 8754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 8766142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell{ 877f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 8786142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell unsigned j; 8796142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell unsigned level = samp->level; 88075276ea316610a5737f2115326482024aa09d02aroot unsigned xpot = pot_level_size(samp->xpot, level); 88175276ea316610a5737f2115326482024aa09d02aroot unsigned ypot = pot_level_size(samp->ypot, level); 882153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell union tex_tile_address addr; 883153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell 884153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.value = 0; 885153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.bits.level = samp->level; 8866142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8876142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 8886142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int c; 8896142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8905fdac2dcea09c654725666b3cab5f59dfc9e31a5Keith Whitwell float u = s[j] * xpot; 8915fdac2dcea09c654725666b3cab5f59dfc9e31a5Keith Whitwell float v = t[j] * ypot; 8926142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8936142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int uflr = util_ifloor(u); 8946142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int vflr = util_ifloor(v); 8956142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8966142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int x0 = uflr & (xpot - 1); 8976142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int y0 = vflr & (ypot - 1); 8986142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 89981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *out = get_texel_2d_no_border(samp, addr, x0, y0); 9006142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 9016142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell for (c = 0; c < 4; c++) { 9026142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell rgba[c][j] = out[c]; 9036142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 9046142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 9054250882ccf8326ba9074c671110370534489caa6Brian Paul 9064250882ccf8326ba9074c671110370534489caa6Brian Paul if (DEBUG_TEX) { 9074250882ccf8326ba9074c671110370534489caa6Brian Paul print_sample(__FUNCTION__, rgba); 9084250882ccf8326ba9074c671110370534489caa6Brian Paul } 9096142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell} 9106142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 9116142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 9124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic INLINE void 9134fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellimg_filter_2d_nearest_clamp_POT(struct tgsi_sampler *tgsi_sampler, 9144fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 9154fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 9164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 9174440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 9184440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 9194fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 9206142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell{ 921f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 9226142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell unsigned j; 9236142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell unsigned level = samp->level; 92475276ea316610a5737f2115326482024aa09d02aroot unsigned xpot = pot_level_size(samp->xpot, level); 92575276ea316610a5737f2115326482024aa09d02aroot unsigned ypot = pot_level_size(samp->ypot, level); 926153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell union tex_tile_address addr; 927153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell 928153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.value = 0; 929153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.bits.level = samp->level; 9306142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 9316142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 9326142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int c; 9336142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 9345fdac2dcea09c654725666b3cab5f59dfc9e31a5Keith Whitwell float u = s[j] * xpot; 9355fdac2dcea09c654725666b3cab5f59dfc9e31a5Keith Whitwell float v = t[j] * ypot; 9366142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 9376142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int x0, y0; 9386142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell const float *out; 9396142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 9406142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell x0 = util_ifloor(u); 9416142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell if (x0 < 0) 9426142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell x0 = 0; 9436142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell else if (x0 > xpot - 1) 9446142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell x0 = xpot - 1; 9456142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 9466142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell y0 = util_ifloor(v); 9476142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell if (y0 < 0) 9486142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell y0 = 0; 9496142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell else if (y0 > ypot - 1) 9506142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell y0 = ypot - 1; 9516142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 95281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out = get_texel_2d_no_border(samp, addr, x0, y0); 9536142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 9546142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell for (c = 0; c < 4; c++) { 9556142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell rgba[c][j] = out[c]; 9566142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 9576142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 9584250882ccf8326ba9074c671110370534489caa6Brian Paul 9594250882ccf8326ba9074c671110370534489caa6Brian Paul if (DEBUG_TEX) { 9604250882ccf8326ba9074c671110370534489caa6Brian Paul print_sample(__FUNCTION__, rgba); 9614250882ccf8326ba9074c671110370534489caa6Brian Paul } 9626142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell} 9636142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 964e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 9656142de393fe34ff0866f8489f1292eb473276f11Keith Whitwellstatic void 9664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellimg_filter_1d_nearest(struct tgsi_sampler *tgsi_sampler, 9674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 9684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 9694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 9704440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 9714440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 9724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 9736142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell{ 974f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 97521148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 9764fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell unsigned level0, j; 9774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int width; 9784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int x[4]; 97981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr; 9806142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 9814fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = samp->level; 982683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell width = u_minify(texture->width0, level0); 9836142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 9844fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(width > 0); 9854f409da3456070946eda2d8ff5153b3b4306bb46Keith Whitwell 98681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.value = 0; 98781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.level = samp->level; 98881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 9894fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_s(s, width, x); 9904f409da3456070946eda2d8ff5153b3b4306bb46Keith Whitwell 9914fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 99281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *out = get_texel_2d(samp, addr, x[j], 0); 99381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell int c; 99481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell for (c = 0; c < 4; c++) { 99581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell rgba[c][j] = out[c]; 99681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell } 9974f409da3456070946eda2d8ff5153b3b4306bb46Keith Whitwell } 9984250882ccf8326ba9074c671110370534489caa6Brian Paul 9994250882ccf8326ba9074c671110370534489caa6Brian Paul if (DEBUG_TEX) { 10004250882ccf8326ba9074c671110370534489caa6Brian Paul print_sample(__FUNCTION__, rgba); 10014250882ccf8326ba9074c671110370534489caa6Brian Paul } 10026142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell} 10036142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 10044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 100560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwellstatic void 1006779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paulimg_filter_1d_array_nearest(struct tgsi_sampler *tgsi_sampler, 1007779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float s[QUAD_SIZE], 1008779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float t[QUAD_SIZE], 1009779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float p[QUAD_SIZE], 1010779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float c0[QUAD_SIZE], 1011779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul enum tgsi_sampler_control control, 1012779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul float rgba[NUM_CHANNELS][QUAD_SIZE]) 1013779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul{ 1014779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 1015779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const struct pipe_resource *texture = samp->view->texture; 1016779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul unsigned level0, j; 1017779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul int width; 1018779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul int x[4], layer[4]; 1019779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul union tex_tile_address addr; 1020779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1021779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul level0 = samp->level; 1022779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul width = u_minify(texture->width0, level0); 1023779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1024779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul assert(width > 0); 1025779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1026779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul addr.value = 0; 1027779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul addr.bits.level = samp->level; 1028779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1029779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul samp->nearest_texcoord_s(s, width, x); 1030779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul wrap_array_layer(t, texture->height0, layer); 1031779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1032779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul for (j = 0; j < QUAD_SIZE; j++) { 1033779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float *out = get_texel_2d(samp, addr, x[j], layer[j]); 1034779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul int c; 1035779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul for (c = 0; c < 4; c++) { 1036779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul rgba[c][j] = out[c]; 1037779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul } 1038779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul } 1039779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1040779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul if (DEBUG_TEX) { 1041779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul print_sample(__FUNCTION__, rgba); 1042779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul } 1043779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul} 1044779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1045779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1046779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paulstatic void 104760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwellimg_filter_2d_nearest(struct tgsi_sampler *tgsi_sampler, 104860adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float s[QUAD_SIZE], 104960adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float t[QUAD_SIZE], 105060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float p[QUAD_SIZE], 10514440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 10524440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 105360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 105460adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell{ 1055f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 105621148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 105760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell unsigned level0, j; 105860adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell int width, height; 105960adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell int x[4], y[4]; 106060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell union tex_tile_address addr; 106181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 106281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 106360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell level0 = samp->level; 1064683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell width = u_minify(texture->width0, level0); 1065683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell height = u_minify(texture->height0, level0); 106660adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 106760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell assert(width > 0); 10685dbedf3d7e99efe35fad308d382670e44cd60e25Brian Paul assert(height > 0); 106960adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 107060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell addr.value = 0; 107160adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell addr.bits.level = samp->level; 107260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 107360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell samp->nearest_texcoord_s(s, width, x); 107460adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell samp->nearest_texcoord_t(t, height, y); 107560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 107660adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 107760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float *out = get_texel_2d(samp, addr, x[j], y[j]); 107860adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell int c; 107960adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell for (c = 0; c < 4; c++) { 108060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell rgba[c][j] = out[c]; 108160adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell } 108260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell } 10834250882ccf8326ba9074c671110370534489caa6Brian Paul 10844250882ccf8326ba9074c671110370534489caa6Brian Paul if (DEBUG_TEX) { 10854250882ccf8326ba9074c671110370534489caa6Brian Paul print_sample(__FUNCTION__, rgba); 10864250882ccf8326ba9074c671110370534489caa6Brian Paul } 108760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell} 108860adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 1089e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 1090779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paulstatic void 1091779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paulimg_filter_2d_array_nearest(struct tgsi_sampler *tgsi_sampler, 1092779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float s[QUAD_SIZE], 1093779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float t[QUAD_SIZE], 1094779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float p[QUAD_SIZE], 1095779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float c0[QUAD_SIZE], 1096779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul enum tgsi_sampler_control control, 1097779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul float rgba[NUM_CHANNELS][QUAD_SIZE]) 1098779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul{ 1099779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 1100779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const struct pipe_resource *texture = samp->view->texture; 1101779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul unsigned level0, j; 1102779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul int width, height; 1103779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul int x[4], y[4], layer[4]; 1104779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul union tex_tile_address addr; 1105779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1106779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul level0 = samp->level; 1107779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul width = u_minify(texture->width0, level0); 1108779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul height = u_minify(texture->height0, level0); 1109779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1110779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul assert(width > 0); 1111779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul assert(height > 0); 1112779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1113779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul addr.value = 0; 1114779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul addr.bits.level = samp->level; 1115779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1116779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul samp->nearest_texcoord_s(s, width, x); 1117779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul samp->nearest_texcoord_t(t, height, y); 1118779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul wrap_array_layer(p, texture->depth0, layer); 1119779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1120779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul for (j = 0; j < QUAD_SIZE; j++) { 1121779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float *out = get_texel_3d(samp, addr, x[j], y[j], layer[j]); 1122779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul int c; 1123779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul for (c = 0; c < 4; c++) { 1124779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul rgba[c][j] = out[c]; 1125779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul } 1126779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul } 1127779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1128779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul if (DEBUG_TEX) { 1129779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul print_sample(__FUNCTION__, rgba); 1130779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul } 1131779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul} 1132779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1133779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 11349659aa6482291d1530c74450612bcd952f542e01José Fonsecastatic INLINE union tex_tile_address 1135e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulface(union tex_tile_address addr, unsigned face ) 113681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell{ 113781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.face = face; 113881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell return addr; 113981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell} 114081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 1141e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 1142e12810d92ffb3547680b227bf88937c03018112bBrianstatic void 114360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwellimg_filter_cube_nearest(struct tgsi_sampler *tgsi_sampler, 1144e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float s[QUAD_SIZE], 1145e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float t[QUAD_SIZE], 1146e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float p[QUAD_SIZE], 11474440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 11484440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 1149e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul float rgba[NUM_CHANNELS][QUAD_SIZE]) 11500dc4eea64f56cc93e5359372b08b99a2d600273cBrian{ 1151f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 115221148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 11534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const unsigned *faces = samp->faces; /* zero when not cube-mapping */ 11544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell unsigned level0, j; 1155f9e331a574cc4eba60e0de5a29a4aed4bb40520cBrian int width, height; 11564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int x[4], y[4]; 115781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr; 115881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 11594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = samp->level; 1160683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell width = u_minify(texture->width0, level0); 1161683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell height = u_minify(texture->height0, level0); 116209a1b912605ff48c8782dcc5aae55ac77e27037bBrian 1163b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian assert(width > 0); 11645dbedf3d7e99efe35fad308d382670e44cd60e25Brian Paul assert(height > 0); 116581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 116681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.value = 0; 116781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.level = samp->level; 1168612cfb749c3526eeb446bbc631bf24716522f373Brian 11694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_s(s, width, x); 11704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_t(t, height, y); 1171f9e331a574cc4eba60e0de5a29a4aed4bb40520cBrian 11724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 117381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *out = get_texel_2d(samp, face(addr, faces[j]), x[j], y[j]); 117481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell int c; 117581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell for (c = 0; c < 4; c++) { 117681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell rgba[c][j] = out[c]; 117781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell } 11780dc4eea64f56cc93e5359372b08b99a2d600273cBrian } 11794250882ccf8326ba9074c671110370534489caa6Brian Paul 11804250882ccf8326ba9074c671110370534489caa6Brian Paul if (DEBUG_TEX) { 11814250882ccf8326ba9074c671110370534489caa6Brian Paul print_sample(__FUNCTION__, rgba); 11824250882ccf8326ba9074c671110370534489caa6Brian Paul } 11830dc4eea64f56cc93e5359372b08b99a2d600273cBrian} 118434a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 118534a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 11864fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 11874fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellimg_filter_3d_nearest(struct tgsi_sampler *tgsi_sampler, 11884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 11894fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 11904fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 11914440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 11924440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 11934fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 119434a48abd5ff82ce9748fc29191e35a0985d47c5fBrian{ 1195f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 119621148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 11974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell unsigned level0, j; 11983d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian int width, height, depth; 11994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int x[4], y[4], z[4]; 120081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr; 1201b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 12024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = samp->level; 1203683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell width = u_minify(texture->width0, level0); 1204683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell height = u_minify(texture->height0, level0); 1205683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell depth = u_minify(texture->depth0, level0); 12063d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian 12073d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian assert(width > 0); 12083d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian assert(height > 0); 12093d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian assert(depth > 0); 12103d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian 12114fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_s(s, width, x); 12124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_t(t, height, y); 12134fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_p(p, depth, z); 12143d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian 121581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.value = 0; 121681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.level = samp->level; 121781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 12184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 121981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *out = get_texel_3d(samp, addr, x[j], y[j], z[j]); 122081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell int c; 122181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell for (c = 0; c < 4; c++) { 122281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell rgba[c][j] = out[c]; 122381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell } 12243d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian } 122534a48abd5ff82ce9748fc29191e35a0985d47c5fBrian} 122634a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 122734a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 122834a48abd5ff82ce9748fc29191e35a0985d47c5fBrianstatic void 12294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellimg_filter_1d_linear(struct tgsi_sampler *tgsi_sampler, 12304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 12314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 12324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 12334440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 12344440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 12354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 123634a48abd5ff82ce9748fc29191e35a0985d47c5fBrian{ 1237f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 123821148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 12394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell unsigned level0, j; 12404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int width; 12414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int x0[4], x1[4]; 12424fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float xw[4]; /* weights */ 124381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr; 12444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 12454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = samp->level; 1246683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell width = u_minify(texture->width0, level0); 12474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 12484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(width > 0); 12494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 125081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.value = 0; 125181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.level = samp->level; 125281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 12534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_s(s, width, x0, x1, xw); 12544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1255b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian for (j = 0; j < QUAD_SIZE; j++) { 125681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx0 = get_texel_2d(samp, addr, x0[j], 0); 125781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx1 = get_texel_2d(samp, addr, x1[j], 0); 12584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int c; 12594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 12604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* interpolate R, G, B, A */ 12614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (c = 0; c < 4; c++) { 126281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell rgba[c][j] = lerp(xw[j], tx0[c], tx1[c]); 12634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1264b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian } 126534a48abd5ff82ce9748fc29191e35a0985d47c5fBrian} 126634a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 126781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 126860adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwellstatic void 1269779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paulimg_filter_1d_array_linear(struct tgsi_sampler *tgsi_sampler, 1270779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float s[QUAD_SIZE], 1271779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float t[QUAD_SIZE], 1272779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float p[QUAD_SIZE], 1273779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float c0[QUAD_SIZE], 1274779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul enum tgsi_sampler_control control, 1275779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul float rgba[NUM_CHANNELS][QUAD_SIZE]) 1276779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul{ 1277779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 1278779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const struct pipe_resource *texture = samp->view->texture; 1279779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul unsigned level0, j; 1280779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul int width; 1281779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul int x0[4], x1[4], layer[4]; 1282779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul float xw[4]; /* weights */ 1283779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul union tex_tile_address addr; 1284779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1285779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul level0 = samp->level; 1286779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul width = u_minify(texture->width0, level0); 1287779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1288779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul assert(width > 0); 1289779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1290779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul addr.value = 0; 1291779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul addr.bits.level = samp->level; 1292779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1293779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul samp->linear_texcoord_s(s, width, x0, x1, xw); 1294779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul wrap_array_layer(t, texture->height0, layer); 1295779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1296779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul for (j = 0; j < QUAD_SIZE; j++) { 1297779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float *tx0 = get_texel_2d(samp, addr, x0[j], layer[j]); 1298779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float *tx1 = get_texel_2d(samp, addr, x1[j], layer[j]); 1299779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul int c; 1300779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1301779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul /* interpolate R, G, B, A */ 1302779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul for (c = 0; c < 4; c++) { 1303779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul rgba[c][j] = lerp(xw[j], tx0[c], tx1[c]); 1304779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul } 1305779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul } 1306779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul} 1307779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1308779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1309779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paulstatic void 131060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwellimg_filter_2d_linear(struct tgsi_sampler *tgsi_sampler, 131160adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float s[QUAD_SIZE], 131260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float t[QUAD_SIZE], 131360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float p[QUAD_SIZE], 13144440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 13154440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 131660adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 131760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell{ 1318f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 131921148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 132060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell unsigned level0, j; 132160adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell int width, height; 132260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell int x0[4], y0[4], x1[4], y1[4]; 132360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell float xw[4], yw[4]; /* weights */ 132460adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell union tex_tile_address addr; 132560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 132660adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell level0 = samp->level; 1327683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell width = u_minify(texture->width0, level0); 1328683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell height = u_minify(texture->height0, level0); 132960adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 133060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell assert(width > 0); 13315dbedf3d7e99efe35fad308d382670e44cd60e25Brian Paul assert(height > 0); 133260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 133360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell addr.value = 0; 133460adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell addr.bits.level = samp->level; 133560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 133660adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell samp->linear_texcoord_s(s, width, x0, x1, xw); 133760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell samp->linear_texcoord_t(t, height, y0, y1, yw); 133860adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 133960adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 134060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float *tx0 = get_texel_2d(samp, addr, x0[j], y0[j]); 134160adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float *tx1 = get_texel_2d(samp, addr, x1[j], y0[j]); 134260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float *tx2 = get_texel_2d(samp, addr, x0[j], y1[j]); 134360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float *tx3 = get_texel_2d(samp, addr, x1[j], y1[j]); 134460adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell int c; 134560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 134660adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell /* interpolate R, G, B, A */ 134760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell for (c = 0; c < 4; c++) { 134860adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell rgba[c][j] = lerp_2d(xw[j], yw[j], 134960adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell tx0[c], tx1[c], 135060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell tx2[c], tx3[c]); 135160adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell } 135260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell } 135360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell} 135481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 135581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 1356b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrianstatic void 1357779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paulimg_filter_2d_array_linear(struct tgsi_sampler *tgsi_sampler, 1358779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float s[QUAD_SIZE], 1359779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float t[QUAD_SIZE], 1360779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float p[QUAD_SIZE], 1361779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float c0[QUAD_SIZE], 1362779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul enum tgsi_sampler_control control, 1363779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul float rgba[NUM_CHANNELS][QUAD_SIZE]) 1364779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul{ 1365779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 1366779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const struct pipe_resource *texture = samp->view->texture; 1367779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul unsigned level0, j; 1368779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul int width, height; 1369779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul int x0[4], y0[4], x1[4], y1[4], layer[4]; 1370779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul float xw[4], yw[4]; /* weights */ 1371779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul union tex_tile_address addr; 1372779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1373779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul level0 = samp->level; 1374779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul width = u_minify(texture->width0, level0); 1375779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul height = u_minify(texture->height0, level0); 1376779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1377779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul assert(width > 0); 1378779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul assert(height > 0); 1379779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1380779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul addr.value = 0; 1381779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul addr.bits.level = samp->level; 1382779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1383779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul samp->linear_texcoord_s(s, width, x0, x1, xw); 1384779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul samp->linear_texcoord_t(t, height, y0, y1, yw); 1385779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul wrap_array_layer(p, texture->depth0, layer); 1386779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1387779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul for (j = 0; j < QUAD_SIZE; j++) { 1388779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float *tx0 = get_texel_3d(samp, addr, x0[j], y0[j], layer[j]); 1389779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float *tx1 = get_texel_3d(samp, addr, x1[j], y0[j], layer[j]); 1390779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float *tx2 = get_texel_3d(samp, addr, x0[j], y1[j], layer[j]); 1391779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul const float *tx3 = get_texel_3d(samp, addr, x1[j], y1[j], layer[j]); 1392779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul int c; 1393779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1394779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul /* interpolate R, G, B, A */ 1395779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul for (c = 0; c < 4; c++) { 1396779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul rgba[c][j] = lerp_2d(xw[j], yw[j], 1397779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul tx0[c], tx1[c], 1398779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul tx2[c], tx3[c]); 1399779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul } 1400779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul } 1401779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul} 1402779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1403779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul 1404779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paulstatic void 140560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwellimg_filter_cube_linear(struct tgsi_sampler *tgsi_sampler, 1406e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float s[QUAD_SIZE], 1407e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float t[QUAD_SIZE], 1408e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float p[QUAD_SIZE], 14094440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 14104440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 1411e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul float rgba[NUM_CHANNELS][QUAD_SIZE]) 1412b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian{ 1413f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 141421148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 14154fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const unsigned *faces = samp->faces; /* zero when not cube-mapping */ 14164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell unsigned level0, j; 1417b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian int width, height; 14184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int x0[4], y0[4], x1[4], y1[4]; 14194fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float xw[4], yw[4]; /* weights */ 142081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr; 1421b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 14224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = samp->level; 1423683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell width = u_minify(texture->width0, level0); 1424683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell height = u_minify(texture->height0, level0); 1425b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 1426b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian assert(width > 0); 14275dbedf3d7e99efe35fad308d382670e44cd60e25Brian Paul assert(height > 0); 1428b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 142981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.value = 0; 143081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.level = samp->level; 143181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 14324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_s(s, width, x0, x1, xw); 14334e5c385d2183e7006c9d7ac0823919156bd4b8e6Brian Paul samp->linear_texcoord_t(t, height, y0, y1, yw); 14344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 14354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 143681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addrj = face(addr, faces[j]); 143781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx0 = get_texel_2d(samp, addrj, x0[j], y0[j]); 143881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx1 = get_texel_2d(samp, addrj, x1[j], y0[j]); 143981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx2 = get_texel_2d(samp, addrj, x0[j], y1[j]); 144081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx3 = get_texel_2d(samp, addrj, x1[j], y1[j]); 14414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int c; 14424fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 14434fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* interpolate R, G, B, A */ 14444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (c = 0; c < 4; c++) { 14454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell rgba[c][j] = lerp_2d(xw[j], yw[j], 144681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tx0[c], tx1[c], 144781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tx2[c], tx3[c]); 1448b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 14494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 14504fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 14514fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 14524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 14534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 14544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellimg_filter_3d_linear(struct tgsi_sampler *tgsi_sampler, 14554fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 14564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 14574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 14584440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 14594440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 14604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 14614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 1462f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 146321148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 14644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell unsigned level0, j; 14654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int width, height, depth; 14664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int x0[4], x1[4], y0[4], y1[4], z0[4], z1[4]; 14674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float xw[4], yw[4], zw[4]; /* interpolation weights */ 146881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr; 14694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 14704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = samp->level; 1471683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell width = u_minify(texture->width0, level0); 1472683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell height = u_minify(texture->height0, level0); 1473683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell depth = u_minify(texture->depth0, level0); 14744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 147581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.value = 0; 147681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.level = level0; 147781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 14784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(width > 0); 14794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(height > 0); 14804fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(depth > 0); 14814fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 14824fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_s(s, width, x0, x1, xw); 14834e5c385d2183e7006c9d7ac0823919156bd4b8e6Brian Paul samp->linear_texcoord_t(t, height, y0, y1, yw); 14844e5c385d2183e7006c9d7ac0823919156bd4b8e6Brian Paul samp->linear_texcoord_p(p, depth, z0, z1, zw); 14854fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 14864fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 14874fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int c; 14884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 148981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx00 = get_texel_3d(samp, addr, x0[j], y0[j], z0[j]); 149081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx01 = get_texel_3d(samp, addr, x1[j], y0[j], z0[j]); 149181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx02 = get_texel_3d(samp, addr, x0[j], y1[j], z0[j]); 149281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx03 = get_texel_3d(samp, addr, x1[j], y1[j], z0[j]); 149381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 149481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx10 = get_texel_3d(samp, addr, x0[j], y0[j], z1[j]); 149581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx11 = get_texel_3d(samp, addr, x1[j], y0[j], z1[j]); 149681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx12 = get_texel_3d(samp, addr, x0[j], y1[j], z1[j]); 149781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx13 = get_texel_3d(samp, addr, x1[j], y1[j], z1[j]); 149881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 14994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* interpolate R, G, B, A */ 15004fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (c = 0; c < 4; c++) { 15014fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell rgba[c][j] = lerp_3d(xw[j], yw[j], zw[j], 150281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tx00[c], tx01[c], 150381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tx02[c], tx03[c], 150481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tx10[c], tx11[c], 150581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tx12[c], tx13[c]); 15064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 15074fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 15084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 15094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 15104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 15114bfe1c955fe679547c8a03119d1681e33593c768Michal Krol/* Calculate level of detail for every fragment. 15124bfe1c955fe679547c8a03119d1681e33593c768Michal Krol * Note that lambda has already been biased by global LOD bias. 15134bfe1c955fe679547c8a03119d1681e33593c768Michal Krol */ 15144bfe1c955fe679547c8a03119d1681e33593c768Michal Krolstatic INLINE void 15154bfe1c955fe679547c8a03119d1681e33593c768Michal Krolcompute_lod(const struct pipe_sampler_state *sampler, 15164bfe1c955fe679547c8a03119d1681e33593c768Michal Krol const float biased_lambda, 15174bfe1c955fe679547c8a03119d1681e33593c768Michal Krol const float lodbias[QUAD_SIZE], 15184bfe1c955fe679547c8a03119d1681e33593c768Michal Krol float lod[QUAD_SIZE]) 15194bfe1c955fe679547c8a03119d1681e33593c768Michal Krol{ 15204bfe1c955fe679547c8a03119d1681e33593c768Michal Krol uint i; 15214bfe1c955fe679547c8a03119d1681e33593c768Michal Krol 15224bfe1c955fe679547c8a03119d1681e33593c768Michal Krol for (i = 0; i < QUAD_SIZE; i++) { 15234bfe1c955fe679547c8a03119d1681e33593c768Michal Krol lod[i] = biased_lambda + lodbias[i]; 15244bfe1c955fe679547c8a03119d1681e33593c768Michal Krol lod[i] = CLAMP(lod[i], sampler->min_lod, sampler->max_lod); 15254bfe1c955fe679547c8a03119d1681e33593c768Michal Krol } 15264bfe1c955fe679547c8a03119d1681e33593c768Michal Krol} 15274bfe1c955fe679547c8a03119d1681e33593c768Michal Krol 15284bfe1c955fe679547c8a03119d1681e33593c768Michal Krol 15294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 15304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellmip_filter_linear(struct tgsi_sampler *tgsi_sampler, 1531e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float s[QUAD_SIZE], 1532e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float t[QUAD_SIZE], 1533e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float p[QUAD_SIZE], 15344440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 15354440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 1536e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul float rgba[NUM_CHANNELS][QUAD_SIZE]) 15374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 1538f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 153921148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 15404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int level0; 15414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lambda; 15424bfe1c955fe679547c8a03119d1681e33593c768Michal Krol float lod[QUAD_SIZE]; 15434fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 15444440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol if (control == tgsi_sampler_lod_bias) { 15454440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol lambda = samp->compute_lambda(samp, s, t, p) + samp->sampler->lod_bias; 15464440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol compute_lod(samp->sampler, lambda, c0, lod); 15474440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol } else { 15484440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol assert(control == tgsi_sampler_lod_explicit); 15494bfe1c955fe679547c8a03119d1681e33593c768Michal Krol 15504440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol memcpy(lod, c0, sizeof(lod)); 15514440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol } 15524bfe1c955fe679547c8a03119d1681e33593c768Michal Krol 15534bfe1c955fe679547c8a03119d1681e33593c768Michal Krol /* XXX: Take into account all lod values. 15544bfe1c955fe679547c8a03119d1681e33593c768Michal Krol */ 15554bfe1c955fe679547c8a03119d1681e33593c768Michal Krol lambda = lod[0]; 15564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = (int)lambda; 15574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 15584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (lambda < 0.0) { 15594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = 0; 15604440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol samp->mag_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba); 15614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 15624fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (level0 >= texture->last_level) { 15634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = texture->last_level; 15644440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba); 15654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 15664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 15674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float levelBlend = lambda - level0; 15684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba0[4][4]; 15694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba1[4][4]; 15704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int c,j; 15714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 15724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = level0; 15734440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba0); 15744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 15754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = level0+1; 15764440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba1); 15774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 15784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 15794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (c = 0; c < 4; c++) { 15804fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell rgba[c][j] = lerp(levelBlend, rgba0[c][j], rgba1[c][j]); 1581b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 1582b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 1583b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 15844250882ccf8326ba9074c671110370534489caa6Brian Paul 15854250882ccf8326ba9074c671110370534489caa6Brian Paul if (DEBUG_TEX) { 15864250882ccf8326ba9074c671110370534489caa6Brian Paul print_sample(__FUNCTION__, rgba); 15874250882ccf8326ba9074c671110370534489caa6Brian Paul } 1588b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian} 1589b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 1590b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 159185425b3b609c480cd024b217b1efd0b9153bed58Brian Paul/** 159285425b3b609c480cd024b217b1efd0b9153bed58Brian Paul * Compute nearest mipmap level from texcoords. 159385425b3b609c480cd024b217b1efd0b9153bed58Brian Paul * Then sample the texture level for four elements of a quad. 159485425b3b609c480cd024b217b1efd0b9153bed58Brian Paul * \param c0 the LOD bias factors, or absolute LODs (depending on control) 159585425b3b609c480cd024b217b1efd0b9153bed58Brian Paul */ 15964fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 15974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellmip_filter_nearest(struct tgsi_sampler *tgsi_sampler, 15984fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 15994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 16004fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 16014440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 16024440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 16034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 16044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 1605f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 160621148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 16074fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lambda; 16084bfe1c955fe679547c8a03119d1681e33593c768Michal Krol float lod[QUAD_SIZE]; 16094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 16104440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol if (control == tgsi_sampler_lod_bias) { 16114440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol lambda = samp->compute_lambda(samp, s, t, p) + samp->sampler->lod_bias; 16124440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol compute_lod(samp->sampler, lambda, c0, lod); 16134440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol } else { 16144440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol assert(control == tgsi_sampler_lod_explicit); 16154bfe1c955fe679547c8a03119d1681e33593c768Michal Krol 16164440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol memcpy(lod, c0, sizeof(lod)); 16174440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol } 16184bfe1c955fe679547c8a03119d1681e33593c768Michal Krol 16194bfe1c955fe679547c8a03119d1681e33593c768Michal Krol /* XXX: Take into account all lod values. 16204bfe1c955fe679547c8a03119d1681e33593c768Michal Krol */ 16214bfe1c955fe679547c8a03119d1681e33593c768Michal Krol lambda = lod[0]; 16224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 16234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (lambda < 0.0) { 16244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = 0; 16254440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol samp->mag_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba); 16264fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 16274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 16284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = (int)(lambda + 0.5) ; 16294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = MIN2(samp->level, (int)texture->last_level); 16304440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba); 16314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 163275276ea316610a5737f2115326482024aa09d02aroot 16334250882ccf8326ba9074c671110370534489caa6Brian Paul if (DEBUG_TEX) { 16344250882ccf8326ba9074c671110370534489caa6Brian Paul print_sample(__FUNCTION__, rgba); 16354250882ccf8326ba9074c671110370534489caa6Brian Paul } 16364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 16374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 16384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 16394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 16404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellmip_filter_none(struct tgsi_sampler *tgsi_sampler, 16414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 16424fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 16434fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 16444440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 16454440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 16464fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 16474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 1648f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 16494bfe1c955fe679547c8a03119d1681e33593c768Michal Krol float lambda; 16504bfe1c955fe679547c8a03119d1681e33593c768Michal Krol float lod[QUAD_SIZE]; 16514bfe1c955fe679547c8a03119d1681e33593c768Michal Krol 16524440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol if (control == tgsi_sampler_lod_bias) { 16534440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol lambda = samp->compute_lambda(samp, s, t, p) + samp->sampler->lod_bias; 16544440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol compute_lod(samp->sampler, lambda, c0, lod); 16554440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol } else { 16564440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol assert(control == tgsi_sampler_lod_explicit); 16574bfe1c955fe679547c8a03119d1681e33593c768Michal Krol 16584440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol memcpy(lod, c0, sizeof(lod)); 16594440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol } 16604bfe1c955fe679547c8a03119d1681e33593c768Michal Krol 16614bfe1c955fe679547c8a03119d1681e33593c768Michal Krol /* XXX: Take into account all lod values. 16624bfe1c955fe679547c8a03119d1681e33593c768Michal Krol */ 16634bfe1c955fe679547c8a03119d1681e33593c768Michal Krol lambda = lod[0]; 16644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 16654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (lambda < 0.0) { 16664440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol samp->mag_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba); 16674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 16684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 16694440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba); 16704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 16714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 16724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 16734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 16744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1675e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul/** 1676e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul * Specialized version of mip_filter_linear with hard-wired calls to 16774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * 2d lambda calculation and 2d_linear_repeat_POT img filters. 1678a34b8594b7b2d00404bb639621ec1ce918ba0786Brian */ 16794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 16804fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellmip_filter_linear_2d_linear_repeat_POT( 16814fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell struct tgsi_sampler *tgsi_sampler, 16824fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 16834fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 16844fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 16854440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 16864440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 16874fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 168800c835918259f8d41c3f74eca679a972713b11b2Keith Whitwell{ 1689f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 169021148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = samp->view->texture; 16914fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int level0; 16924fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lambda; 16934bfe1c955fe679547c8a03119d1681e33593c768Michal Krol float lod[QUAD_SIZE]; 16944bfe1c955fe679547c8a03119d1681e33593c768Michal Krol 16954440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol if (control == tgsi_sampler_lod_bias) { 16964440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol lambda = samp->compute_lambda(samp, s, t, p) + samp->sampler->lod_bias; 16974440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol compute_lod(samp->sampler, lambda, c0, lod); 16984440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol } else { 16994440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol assert(control == tgsi_sampler_lod_explicit); 170000c835918259f8d41c3f74eca679a972713b11b2Keith Whitwell 17014440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol memcpy(lod, c0, sizeof(lod)); 17024440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol } 17034bfe1c955fe679547c8a03119d1681e33593c768Michal Krol 17044bfe1c955fe679547c8a03119d1681e33593c768Michal Krol /* XXX: Take into account all lod values. 17054bfe1c955fe679547c8a03119d1681e33593c768Michal Krol */ 17064bfe1c955fe679547c8a03119d1681e33593c768Michal Krol lambda = lod[0]; 17074fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = (int)lambda; 17084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 17094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* Catches both negative and large values of level0: 17104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 17114fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if ((unsigned)level0 >= texture->last_level) { 17124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (level0 < 0) 17134fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = 0; 17144fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 17154fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = texture->last_level; 17164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 17174440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol img_filter_2d_linear_repeat_POT(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba); 17184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 17194fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 17204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float levelBlend = lambda - level0; 17214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba0[4][4]; 17224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba1[4][4]; 17234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int c,j; 17244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 17254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = level0; 17264440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol img_filter_2d_linear_repeat_POT(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba0); 17274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 17284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = level0+1; 17294440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol img_filter_2d_linear_repeat_POT(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba1); 17304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 17314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 17324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (c = 0; c < 4; c++) { 17334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell rgba[c][j] = lerp(levelBlend, rgba0[c][j], rgba1[c][j]); 17344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1735b1ff7dac537947d412bf423a73e7eacd76f90d84Brian Paul } 1736ea0007cc4ca077c7e3951c4fda122bd242728d70Brian Paul } 17374250882ccf8326ba9074c671110370534489caa6Brian Paul 17384250882ccf8326ba9074c671110370534489caa6Brian Paul if (DEBUG_TEX) { 17394250882ccf8326ba9074c671110370534489caa6Brian Paul print_sample(__FUNCTION__, rgba); 17404250882ccf8326ba9074c671110370534489caa6Brian Paul } 1741b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian} 1742b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian 1743b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian 17444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1745e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul/** 1746e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul * Do shadow/depth comparisons. 17473d8c05f7320151898dd224c1daaf3118e1f7ea34Brian */ 17484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 17494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellsample_compare(struct tgsi_sampler *tgsi_sampler, 1750b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian const float s[QUAD_SIZE], 1751b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian const float t[QUAD_SIZE], 17523d8c05f7320151898dd224c1daaf3118e1f7ea34Brian const float p[QUAD_SIZE], 17534440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 17544440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 1755b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian float rgba[NUM_CHANNELS][QUAD_SIZE]) 17563d8c05f7320151898dd224c1daaf3118e1f7ea34Brian{ 1757f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 1758aa5db684382bd8662a83ca09ed000e4a5a1013f9Keith Whitwell const struct pipe_sampler_state *sampler = samp->sampler; 17594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int j, k0, k1, k2, k3; 17604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float val; 17613d8c05f7320151898dd224c1daaf3118e1f7ea34Brian 17624440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol samp->mip_filter(tgsi_sampler, s, t, p, c0, control, rgba); 17633d8c05f7320151898dd224c1daaf3118e1f7ea34Brian 17644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /** 17654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * Compare texcoord 'p' (aka R) against texture value 'rgba[0]' 17664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * When we sampled the depth texture, the depth value was put into all 17674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * RGBA channels. We look at the red channel here. 17684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 1769efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul 1770efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul /* compare four texcoords vs. four texture samples */ 1771efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul switch (sampler->compare_func) { 1772efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_LESS: 1773efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = p[0] < rgba[0][0]; 1774efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k1 = p[1] < rgba[0][1]; 1775efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k2 = p[2] < rgba[0][2]; 1776efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k3 = p[3] < rgba[0][3]; 1777efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1778efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_LEQUAL: 1779efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = p[0] <= rgba[0][0]; 1780efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k1 = p[1] <= rgba[0][1]; 1781efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k2 = p[2] <= rgba[0][2]; 1782efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k3 = p[3] <= rgba[0][3]; 1783efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1784efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_GREATER: 1785efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = p[0] > rgba[0][0]; 1786efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k1 = p[1] > rgba[0][1]; 1787efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k2 = p[2] > rgba[0][2]; 1788efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k3 = p[3] > rgba[0][3]; 1789efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1790efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_GEQUAL: 1791efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = p[0] >= rgba[0][0]; 1792efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k1 = p[1] >= rgba[0][1]; 1793efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k2 = p[2] >= rgba[0][2]; 1794efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k3 = p[3] >= rgba[0][3]; 1795efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1796efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_EQUAL: 1797efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = p[0] == rgba[0][0]; 1798efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k1 = p[1] == rgba[0][1]; 1799efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k2 = p[2] == rgba[0][2]; 1800efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k3 = p[3] == rgba[0][3]; 1801efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1802efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_NOTEQUAL: 1803efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = p[0] != rgba[0][0]; 1804efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k1 = p[1] != rgba[0][1]; 1805efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k2 = p[2] != rgba[0][2]; 1806efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k3 = p[3] != rgba[0][3]; 1807efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1808efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_ALWAYS: 1809efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = k1 = k2 = k3 = 1; 1810efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1811efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_NEVER: 1812efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = k1 = k2 = k3 = 0; 1813efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1814efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul default: 1815efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = k1 = k2 = k3 = 0; 1816efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul assert(0); 1817efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1818efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul } 1819efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul 1820efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul /* convert four pass/fail values to an intensity in [0,1] */ 1821efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul val = 0.25F * (k0 + k1 + k2 + k3); 1822efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul 1823efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul /* XXX returning result for default GL_DEPTH_TEXTURE_MODE = GL_LUMINANCE */ 1824efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul for (j = 0; j < 4; j++) { 1825efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul rgba[0][j] = rgba[1][j] = rgba[2][j] = val; 1826efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul rgba[3][j] = 1.0F; 1827efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul } 1828efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul} 1829efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul 1830e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 1831e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul/** 183285425b3b609c480cd024b217b1efd0b9153bed58Brian Paul * Use 3D texcoords to choose a cube face, then sample the 2D cube faces. 183385425b3b609c480cd024b217b1efd0b9153bed58Brian Paul * Put face info into the sampler faces[] array. 18340dc4eea64f56cc93e5359372b08b99a2d600273cBrian */ 1835e12810d92ffb3547680b227bf88937c03018112bBrianstatic void 18364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellsample_cube(struct tgsi_sampler *tgsi_sampler, 18374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 18384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 18394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 18404440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol const float c0[QUAD_SIZE], 18414440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol enum tgsi_sampler_control control, 18424fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 18430dc4eea64f56cc93e5359372b08b99a2d600273cBrian{ 1844f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 18454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell unsigned j; 18464fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float ssss[4], tttt[4]; 184709a1b912605ff48c8782dcc5aae55ac77e27037bBrian 18484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* 18494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell major axis 185085425b3b609c480cd024b217b1efd0b9153bed58Brian Paul direction target sc tc ma 185185425b3b609c480cd024b217b1efd0b9153bed58Brian Paul ---------- ------------------------------- --- --- --- 18524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell +rx TEXTURE_CUBE_MAP_POSITIVE_X_EXT -rz -ry rx 18534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell -rx TEXTURE_CUBE_MAP_NEGATIVE_X_EXT +rz -ry rx 18544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell +ry TEXTURE_CUBE_MAP_POSITIVE_Y_EXT +rx +rz ry 18554fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell -ry TEXTURE_CUBE_MAP_NEGATIVE_Y_EXT +rx -rz ry 18564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell +rz TEXTURE_CUBE_MAP_POSITIVE_Z_EXT +rx -ry rz 18574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell -rz TEXTURE_CUBE_MAP_NEGATIVE_Z_EXT -rx -ry rz 18584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 185985425b3b609c480cd024b217b1efd0b9153bed58Brian Paul 18609ffdc78d1a308bb21a8627abb7bfc9da8abd2f81Brian Paul /* Choose the cube face and compute new s/t coords for the 2D face. 18619ffdc78d1a308bb21a8627abb7bfc9da8abd2f81Brian Paul * 186285425b3b609c480cd024b217b1efd0b9153bed58Brian Paul * Use the same cube face for all four pixels in the quad. 186385425b3b609c480cd024b217b1efd0b9153bed58Brian Paul * 186485425b3b609c480cd024b217b1efd0b9153bed58Brian Paul * This isn't ideal, but if we want to use a different cube face 186585425b3b609c480cd024b217b1efd0b9153bed58Brian Paul * per pixel in the quad, we'd have to also compute the per-face 186685425b3b609c480cd024b217b1efd0b9153bed58Brian Paul * LOD here too. That's because the four post-face-selection 186785425b3b609c480cd024b217b1efd0b9153bed58Brian Paul * texcoords are no longer related to each other (they're 186885425b3b609c480cd024b217b1efd0b9153bed58Brian Paul * per-face!) so we can't use subtraction to compute the partial 186985425b3b609c480cd024b217b1efd0b9153bed58Brian Paul * deriviates to compute the LOD. Doing so (near cube edges 187085425b3b609c480cd024b217b1efd0b9153bed58Brian Paul * anyway) gives us pretty much random values. 187185425b3b609c480cd024b217b1efd0b9153bed58Brian Paul */ 187285425b3b609c480cd024b217b1efd0b9153bed58Brian Paul { 187385425b3b609c480cd024b217b1efd0b9153bed58Brian Paul /* use the average of the four pixel's texcoords to choose the face */ 187485425b3b609c480cd024b217b1efd0b9153bed58Brian Paul const float rx = 0.25 * (s[0] + s[1] + s[2] + s[3]); 187585425b3b609c480cd024b217b1efd0b9153bed58Brian Paul const float ry = 0.25 * (t[0] + t[1] + t[2] + t[3]); 187685425b3b609c480cd024b217b1efd0b9153bed58Brian Paul const float rz = 0.25 * (p[0] + p[1] + p[2] + p[3]); 18774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float arx = fabsf(rx), ary = fabsf(ry), arz = fabsf(rz); 18784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1879890679d4322e7ba4f12f32532a3fdd277edff886Keith Whitwell if (arx >= ary && arx >= arz) { 1880c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul float sign = (rx >= 0.0F) ? 1.0F : -1.0F; 1881c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul uint face = (rx >= 0.0F) ? PIPE_TEX_FACE_POS_X : PIPE_TEX_FACE_NEG_X; 1882c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul for (j = 0; j < QUAD_SIZE; j++) { 1883c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul const float ima = -0.5F / fabsf(s[j]); 1884c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul ssss[j] = sign * p[j] * ima + 0.5F; 1885c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul tttt[j] = t[j] * ima + 0.5F; 1886c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul samp->faces[j] = face; 18874fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 18884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1889890679d4322e7ba4f12f32532a3fdd277edff886Keith Whitwell else if (ary >= arx && ary >= arz) { 1890c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul float sign = (ry >= 0.0F) ? 1.0F : -1.0F; 1891c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul uint face = (ry >= 0.0F) ? PIPE_TEX_FACE_POS_Y : PIPE_TEX_FACE_NEG_Y; 1892c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul for (j = 0; j < QUAD_SIZE; j++) { 1893c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul const float ima = -0.5F / fabsf(t[j]); 1894c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul ssss[j] = -s[j] * ima + 0.5F; 1895c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul tttt[j] = sign * -p[j] * ima + 0.5F; 1896c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul samp->faces[j] = face; 18974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 18984fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 18994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 1900c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul float sign = (rz >= 0.0F) ? 1.0F : -1.0F; 1901c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul uint face = (rz >= 0.0F) ? PIPE_TEX_FACE_POS_Z : PIPE_TEX_FACE_NEG_Z; 1902c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul for (j = 0; j < QUAD_SIZE; j++) { 1903c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul const float ima = -0.5 / fabsf(p[j]); 1904c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul ssss[j] = sign * -s[j] * ima + 0.5F; 1905c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul tttt[j] = t[j] * ima + 0.5F; 1906c72a3b4f2ffe0673e753ad144d1b5557a42c670fBrian Paul samp->faces[j] = face; 19074fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 19084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 190985425b3b609c480cd024b217b1efd0b9153bed58Brian Paul } 191085425b3b609c480cd024b217b1efd0b9153bed58Brian Paul 19114fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* In our little pipeline, the compare stage is next. If compare 19124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * is not active, this will point somewhere deeper into the 19134fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * pipeline, eg. to mip_filter or even img_filter. 19146142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell */ 19154440428faa82f01b4dfb4be89618be2aaf153abdMichal Krol samp->compare(tgsi_sampler, ssss, tttt, NULL, c0, control, rgba); 19164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 1917612cfb749c3526eeb446bbc631bf24716522f373Brian 19183d8c05f7320151898dd224c1daaf3118e1f7ea34Brian 1919c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paulstatic void 1920c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paulsample_swizzle(struct tgsi_sampler *tgsi_sampler, 1921c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul const float s[QUAD_SIZE], 1922c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul const float t[QUAD_SIZE], 1923c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul const float p[QUAD_SIZE], 1924c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul const float c0[QUAD_SIZE], 1925c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul enum tgsi_sampler_control control, 1926c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul float rgba[NUM_CHANNELS][QUAD_SIZE]) 1927c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul{ 1928f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler); 1929c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul float rgba_temp[NUM_CHANNELS][QUAD_SIZE]; 1930c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul const unsigned swizzle_r = samp->key.bits.swizzle_r; 1931c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul const unsigned swizzle_g = samp->key.bits.swizzle_g; 1932c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul const unsigned swizzle_b = samp->key.bits.swizzle_b; 1933c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul const unsigned swizzle_a = samp->key.bits.swizzle_a; 1934c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul unsigned j; 1935c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul 1936c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul samp->sample_target(tgsi_sampler, s, t, p, c0, control, rgba_temp); 1937c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul 1938c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul switch (swizzle_r) { 1939c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul case PIPE_SWIZZLE_ZERO: 1940c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul for (j = 0; j < 4; j++) 1941c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul rgba[0][j] = 0.0f; 1942c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul break; 1943c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul case PIPE_SWIZZLE_ONE: 1944c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul for (j = 0; j < 4; j++) 1945c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul rgba[0][j] = 1.0f; 1946c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul break; 1947c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul default: 1948c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul assert(swizzle_r < 4); 1949c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul for (j = 0; j < 4; j++) 1950c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul rgba[0][j] = rgba_temp[swizzle_r][j]; 1951c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul } 1952c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul 1953c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul switch (swizzle_g) { 1954c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul case PIPE_SWIZZLE_ZERO: 1955c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul for (j = 0; j < 4; j++) 1956c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul rgba[1][j] = 0.0f; 1957c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul break; 1958c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul case PIPE_SWIZZLE_ONE: 1959c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul for (j = 0; j < 4; j++) 1960c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul rgba[1][j] = 1.0f; 1961c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul break; 1962c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul default: 1963c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul assert(swizzle_g < 4); 1964c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul for (j = 0; j < 4; j++) 1965c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul rgba[1][j] = rgba_temp[swizzle_g][j]; 1966c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul } 1967c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul 1968c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul switch (swizzle_b) { 1969c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul case PIPE_SWIZZLE_ZERO: 1970c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul for (j = 0; j < 4; j++) 1971c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul rgba[2][j] = 0.0f; 1972c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul break; 1973c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul case PIPE_SWIZZLE_ONE: 1974c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul for (j = 0; j < 4; j++) 1975c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul rgba[2][j] = 1.0f; 1976c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul break; 1977c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul default: 1978c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul assert(swizzle_b < 4); 1979c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul for (j = 0; j < 4; j++) 1980c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul rgba[2][j] = rgba_temp[swizzle_b][j]; 1981c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul } 1982c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul 1983c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul switch (swizzle_a) { 1984c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul case PIPE_SWIZZLE_ZERO: 1985c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul for (j = 0; j < 4; j++) 1986c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul rgba[3][j] = 0.0f; 1987c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul break; 1988c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul case PIPE_SWIZZLE_ONE: 1989c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul for (j = 0; j < 4; j++) 1990c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul rgba[3][j] = 1.0f; 1991c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul break; 1992c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul default: 1993c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul assert(swizzle_a < 4); 1994c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul for (j = 0; j < 4; j++) 1995c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul rgba[3][j] = rgba_temp[swizzle_a][j]; 1996c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul } 1997c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul} 1998c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul 19993d8c05f7320151898dd224c1daaf3118e1f7ea34Brian 2000e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulstatic wrap_nearest_func 2001e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulget_nearest_unorm_wrap(unsigned mode) 20024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 20034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (mode) { 20044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP: 20054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_unorm_clamp; 20064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_EDGE: 2007b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul return wrap_nearest_unorm_clamp_to_edge; 20084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_BORDER: 20094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_unorm_clamp_to_border; 20100dc4eea64f56cc93e5359372b08b99a2d600273cBrian default: 20110dc4eea64f56cc93e5359372b08b99a2d600273cBrian assert(0); 20124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_unorm_clamp; 20130dc4eea64f56cc93e5359372b08b99a2d600273cBrian } 20140dc4eea64f56cc93e5359372b08b99a2d600273cBrian} 201534a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 201634a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 2017e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulstatic wrap_nearest_func 2018e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulget_nearest_wrap(unsigned mode) 2019a34b8594b7b2d00404bb639621ec1ce918ba0786Brian{ 20204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (mode) { 20214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_REPEAT: 20224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_repeat; 20234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP: 20244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_clamp; 20254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_EDGE: 20264fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_clamp_to_edge; 20274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_BORDER: 20284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_clamp_to_border; 20294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_REPEAT: 20304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_mirror_repeat; 20314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_CLAMP: 20324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_mirror_clamp; 20334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE: 20344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_mirror_clamp_to_edge; 20354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER: 20364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_mirror_clamp_to_border; 20374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell default: 20384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(0); 20394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_repeat; 20404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 2041a34b8594b7b2d00404bb639621ec1ce918ba0786Brian} 2042a34b8594b7b2d00404bb639621ec1ce918ba0786Brian 2043e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 2044e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulstatic wrap_linear_func 2045e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulget_linear_unorm_wrap(unsigned mode) 2046a34b8594b7b2d00404bb639621ec1ce918ba0786Brian{ 20474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (mode) { 20484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP: 20494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_unorm_clamp; 20504fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_EDGE: 2051b5b128b26841e7f947edd8f0cbcc91a530d6bb8fBrian Paul return wrap_linear_unorm_clamp_to_edge; 20524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_BORDER: 20534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_unorm_clamp_to_border; 20544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell default: 20554fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(0); 20564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_unorm_clamp; 20574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 2058a34b8594b7b2d00404bb639621ec1ce918ba0786Brian} 2059a34b8594b7b2d00404bb639621ec1ce918ba0786Brian 2060e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 2061e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulstatic wrap_linear_func 2062e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulget_linear_wrap(unsigned mode) 206334a48abd5ff82ce9748fc29191e35a0985d47c5fBrian{ 20644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (mode) { 20654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_REPEAT: 20664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_repeat; 20674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP: 20684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_clamp; 20694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_EDGE: 20704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_clamp_to_edge; 20714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_BORDER: 20724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_clamp_to_border; 20734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_REPEAT: 20744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_mirror_repeat; 20754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_CLAMP: 20764fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_mirror_clamp; 20774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE: 20784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_mirror_clamp_to_edge; 20794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER: 20804fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_mirror_clamp_to_border; 20813d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian default: 20823d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian assert(0); 20834fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_repeat; 20843d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian } 208534a48abd5ff82ce9748fc29191e35a0985d47c5fBrian} 208634a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 2087e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 2088e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulstatic compute_lambda_func 2089e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulget_lambda_func(const union sp_sampler_key key) 209034a48abd5ff82ce9748fc29191e35a0985d47c5fBrian{ 20914fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (key.bits.processor == TGSI_PROCESSOR_VERTEX) 20924fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return compute_lambda_vert; 20934fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 20944fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (key.bits.target) { 20954fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEXTURE_1D: 2096779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul case PIPE_TEXTURE_1D_ARRAY: 20974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return compute_lambda_1d; 20984fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEXTURE_2D: 2099779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul case PIPE_TEXTURE_2D_ARRAY: 2100ae0ef6f69f351cacdc7eaa9b21097a7c1b414e44Luca Barbieri case PIPE_TEXTURE_RECT: 210187ec83afd58536c31bf02c307f1d5488abc84861Brian Paul case PIPE_TEXTURE_CUBE: 21024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return compute_lambda_2d; 21034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEXTURE_3D: 21044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return compute_lambda_3d; 21054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell default: 21064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(0); 21074fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return compute_lambda_1d; 2108b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian } 210934a48abd5ff82ce9748fc29191e35a0985d47c5fBrian} 211034a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 2111e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 2112e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulstatic filter_func 2113e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulget_img_filter(const union sp_sampler_key key, 2114e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul unsigned filter, 2115e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const struct pipe_sampler_state *sampler) 2116b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian{ 21174fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (key.bits.target) { 21184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEXTURE_1D: 21194fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (filter == PIPE_TEX_FILTER_NEAREST) 21204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_1d_nearest; 21214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 21224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_1d_linear; 2123b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian break; 2124779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul case PIPE_TEXTURE_1D_ARRAY: 2125779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul if (filter == PIPE_TEX_FILTER_NEAREST) 2126779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul return img_filter_1d_array_nearest; 2127779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul else 2128779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul return img_filter_1d_array_linear; 2129779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul break; 21304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEXTURE_2D: 2131ae0ef6f69f351cacdc7eaa9b21097a7c1b414e44Luca Barbieri case PIPE_TEXTURE_RECT: 21324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* Try for fast path: 21334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 21344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (key.bits.is_pot && 21354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sampler->wrap_s == sampler->wrap_t && 21364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sampler->normalized_coords) 213738bee46e83b18ff4ad42d340b507b1a15b4326c7Brian { 21384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (sampler->wrap_s) { 21394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_REPEAT: 21404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (filter) { 21416142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell case PIPE_TEX_FILTER_NEAREST: 21424fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_2d_nearest_repeat_POT; 21436142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell case PIPE_TEX_FILTER_LINEAR: 21444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_2d_linear_repeat_POT; 21456142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell default: 21466142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell break; 214738bee46e83b18ff4ad42d340b507b1a15b4326c7Brian } 21484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell break; 21494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP: 21504fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (filter) { 21516142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell case PIPE_TEX_FILTER_NEAREST: 21524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_2d_nearest_clamp_POT; 21536142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell default: 21546142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell break; 215538bee46e83b18ff4ad42d340b507b1a15b4326c7Brian } 2156b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 2157b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 215860adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell /* Otherwise use default versions: 21594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 21604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (filter == PIPE_TEX_FILTER_NEAREST) 21614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_2d_nearest; 21624fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 21634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_2d_linear; 21644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell break; 2165779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul case PIPE_TEXTURE_2D_ARRAY: 2166779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul if (filter == PIPE_TEX_FILTER_NEAREST) 2167779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul return img_filter_2d_array_nearest; 2168779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul else 2169779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul return img_filter_2d_array_linear; 2170779e9cb658dba4ef44fae7e8aa62409f7227f46cBrian Paul break; 217160adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell case PIPE_TEXTURE_CUBE: 217260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell if (filter == PIPE_TEX_FILTER_NEAREST) 217360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell return img_filter_cube_nearest; 217460adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell else 217560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell return img_filter_cube_linear; 217660adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell break; 21774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEXTURE_3D: 21784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (filter == PIPE_TEX_FILTER_NEAREST) 21794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_3d_nearest; 21804fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 21814fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_3d_linear; 2182b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian break; 2183b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian default: 2184b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian assert(0); 21854fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_1d_nearest; 2186b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 2187b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian} 2188b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 2189b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 2190a34b8594b7b2d00404bb639621ec1ce918ba0786Brian/** 2191f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul * Bind the given texture object and texture cache to the sampler variant. 2192a34b8594b7b2d00404bb639621ec1ce918ba0786Brian */ 21934fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellvoid 219421148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeetsp_sampler_variant_bind_view( struct sp_sampler_variant *samp, 219521148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet struct softpipe_tex_tile_cache *tex_cache, 219621148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_sampler_view *view ) 219734a48abd5ff82ce9748fc29191e35a0985d47c5fBrian{ 21984fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct pipe_sampler_state *sampler = samp->sampler; 219921148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet const struct pipe_resource *texture = view->texture; 22004fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 220121148e6a8806736b4487da41b01e2d3c01cbc743Henri Verbeet samp->view = view; 22024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->cache = tex_cache; 2203683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell samp->xpot = util_unsigned_logbase2( texture->width0 ); 2204683e35f726a182ed9fc6b6d5cb07146eebe14deaKeith Whitwell samp->ypot = util_unsigned_logbase2( texture->height0 ); 22054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = CLAMP((int) sampler->min_lod, 0, (int) texture->last_level); 22064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 22070b9e96fae9493d5d58f046e01c983a3c4267090eBrian 22084f23468bd0d14b8ed687a641003d587b91ad39a7Brian 2209ecfa8be150ed276af816467b467e76e026f5b541Keith Whitwellvoid 2210f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paulsp_sampler_variant_destroy( struct sp_sampler_variant *samp ) 2211ecfa8be150ed276af816467b467e76e026f5b541Keith Whitwell{ 2212ecfa8be150ed276af816467b467e76e026f5b541Keith Whitwell FREE(samp); 2213ecfa8be150ed276af816467b467e76e026f5b541Keith Whitwell} 2214ecfa8be150ed276af816467b467e76e026f5b541Keith Whitwell 2215ecfa8be150ed276af816467b467e76e026f5b541Keith Whitwell 2216e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul/** 2217f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul * Create a sampler variant for a given set of non-orthogonal state. 22184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 2219f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paulstruct sp_sampler_variant * 2220f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paulsp_create_sampler_variant( const struct pipe_sampler_state *sampler, 22214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const union sp_sampler_key key ) 22224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 2223f3955f6fcdd1a3106a6538642131ccea5ef1cef0Brian Paul struct sp_sampler_variant *samp = CALLOC_STRUCT(sp_sampler_variant); 22244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (!samp) 22254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return NULL; 22264fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 22274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->sampler = sampler; 22284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->key = key; 22294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 22304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* Note that (for instance) linear_texcoord_s and 22314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * nearest_texcoord_s may be active at the same time, if the 22324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * sampler min_img_filter differs from its mag_img_filter. 22334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 22344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (sampler->normalized_coords) { 22354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_s = get_linear_wrap( sampler->wrap_s ); 22364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_t = get_linear_wrap( sampler->wrap_t ); 22374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_p = get_linear_wrap( sampler->wrap_r ); 22384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 22394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_s = get_nearest_wrap( sampler->wrap_s ); 22404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_t = get_nearest_wrap( sampler->wrap_t ); 22414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_p = get_nearest_wrap( sampler->wrap_r ); 22424fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 22434fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 22444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_s = get_linear_unorm_wrap( sampler->wrap_s ); 22454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_t = get_linear_unorm_wrap( sampler->wrap_t ); 22464fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_p = get_linear_unorm_wrap( sampler->wrap_r ); 22474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 22484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_s = get_nearest_unorm_wrap( sampler->wrap_s ); 22494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_t = get_nearest_unorm_wrap( sampler->wrap_t ); 22504fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_p = get_nearest_unorm_wrap( sampler->wrap_r ); 22514fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 22524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 22534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->compute_lambda = get_lambda_func( key ); 22544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 22554fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->min_img_filter = get_img_filter(key, sampler->min_img_filter, sampler); 225641483627f0fd3dc9df2cc55dfd5f3e5987fcfd22Brian Paul samp->mag_img_filter = get_img_filter(key, sampler->mag_img_filter, sampler); 22574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 22584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (sampler->min_mip_filter) { 22594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_MIPFILTER_NONE: 22604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (sampler->min_img_filter == sampler->mag_img_filter) 22614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->mip_filter = samp->min_img_filter; 2262b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian else 22634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->mip_filter = mip_filter_none; 226434a48abd5ff82ce9748fc29191e35a0985d47c5fBrian break; 22654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 22664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_MIPFILTER_NEAREST: 22674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->mip_filter = mip_filter_nearest; 226834a48abd5ff82ce9748fc29191e35a0985d47c5fBrian break; 22694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 22704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_MIPFILTER_LINEAR: 22714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (key.bits.is_pot && 22724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sampler->min_img_filter == sampler->mag_img_filter && 22734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sampler->normalized_coords && 22744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sampler->wrap_s == PIPE_TEX_WRAP_REPEAT && 2275cf102b031e7ef33c8e3ffce2f9dcd064f44e8190Brian Paul sampler->wrap_t == PIPE_TEX_WRAP_REPEAT && 22764fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sampler->min_img_filter == PIPE_TEX_FILTER_LINEAR) 22774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell { 22784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->mip_filter = mip_filter_linear_2d_linear_repeat_POT; 22794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 22804fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 22814fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell { 22824fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->mip_filter = mip_filter_linear; 22836142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 228434a48abd5ff82ce9748fc29191e35a0985d47c5fBrian break; 228534a48abd5ff82ce9748fc29191e35a0985d47c5fBrian } 22863d53d38d5e35386de4793162b9dd32e171927059Brian Paul 22874e014c0a148ba3ac015d0e83dcf975ca6e814e1fMichal Krol if (sampler->compare_mode != PIPE_TEX_COMPARE_NONE) { 22884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->compare = sample_compare; 22893d53d38d5e35386de4793162b9dd32e171927059Brian Paul } 22904fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 22914fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* Skip compare operation by promoting the mip_filter function 22924fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * pointer: 22934fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 22944fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->compare = samp->mip_filter; 22954fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 22964fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 22974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (key.bits.target == PIPE_TEXTURE_CUBE) { 2298c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul samp->sample_target = sample_cube; 22994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 23004fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 23014fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->faces[0] = 0; 23024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->faces[1] = 0; 23034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->faces[2] = 0; 23044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->faces[3] = 0; 23054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 23064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* Skip cube face determination by promoting the compare 23074fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * function pointer: 23084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 2309c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul samp->sample_target = samp->compare; 2310c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul } 2311c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul 2312c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul if (key.bits.swizzle_r != PIPE_SWIZZLE_RED || 2313c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul key.bits.swizzle_g != PIPE_SWIZZLE_GREEN || 2314c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul key.bits.swizzle_b != PIPE_SWIZZLE_BLUE || 2315c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul key.bits.swizzle_a != PIPE_SWIZZLE_ALPHA) { 2316c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul samp->base.get_samples = sample_swizzle; 2317c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul } 2318c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul else { 2319c62bb90d6a864468fe1a717aebb9c1a9c43bf3c8Brian Paul samp->base.get_samples = samp->sample_target; 23206142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 23216142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 23224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return samp; 232334a48abd5ff82ce9748fc29191e35a0985d47c5fBrian} 2324