sp_tex_sample.c revision 9659aa6482291d1530c74450612bcd952f542e01
10dc4eea64f56cc93e5359372b08b99a2d600273cBrian/************************************************************************** 20dc4eea64f56cc93e5359372b08b99a2d600273cBrian * 30dc4eea64f56cc93e5359372b08b99a2d600273cBrian * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 40dc4eea64f56cc93e5359372b08b99a2d600273cBrian * All Rights Reserved. 53ffd529ff19bf8dd7b022a267bf2afe44c7f0f65Brian Paul * Copyright 2008 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 473ffd529ff19bf8dd7b022a267bf2afe44c7f0f65Brian Paul 4808f33a025100dea2d951e6d628891fe294b18082Brian/* 49b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul * Return fractional part of 'f'. Used for computing interpolation weights. 50b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul * Need to be careful with negative values. 51b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul * Note, if this function isn't perfect you'll sometimes see 1-pixel bands 52b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul * of improperly weighted linear-filtered textures. 5308f33a025100dea2d951e6d628891fe294b18082Brian * The tests/texwrap.c demo is a good test. 5408f33a025100dea2d951e6d628891fe294b18082Brian */ 55b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paulstatic INLINE float 56b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paulfrac(float f) 57b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul{ 58b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul return f - util_ifloor(f); 59b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul} 60b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul 6108f33a025100dea2d951e6d628891fe294b18082Brian 6208f33a025100dea2d951e6d628891fe294b18082Brian 6308f33a025100dea2d951e6d628891fe294b18082Brian/** 6408f33a025100dea2d951e6d628891fe294b18082Brian * Linear interpolation macro 6508f33a025100dea2d951e6d628891fe294b18082Brian */ 6638bee46e83b18ff4ad42d340b507b1a15b4326c7Brianstatic INLINE float 6738bee46e83b18ff4ad42d340b507b1a15b4326c7Brianlerp(float a, float v0, float v1) 6838bee46e83b18ff4ad42d340b507b1a15b4326c7Brian{ 6938bee46e83b18ff4ad42d340b507b1a15b4326c7Brian return v0 + a * (v1 - v0); 7038bee46e83b18ff4ad42d340b507b1a15b4326c7Brian} 710dc4eea64f56cc93e5359372b08b99a2d600273cBrian 720dc4eea64f56cc93e5359372b08b99a2d600273cBrian 730dc4eea64f56cc93e5359372b08b99a2d600273cBrian/** 740dc4eea64f56cc93e5359372b08b99a2d600273cBrian * Do 2D/biliner interpolation of float values. 750dc4eea64f56cc93e5359372b08b99a2d600273cBrian * v00, v10, v01 and v11 are typically four texture samples in a square/box. 760dc4eea64f56cc93e5359372b08b99a2d600273cBrian * a and b are the horizontal and vertical interpolants. 770dc4eea64f56cc93e5359372b08b99a2d600273cBrian * It's important that this function is inlined when compiled with 780dc4eea64f56cc93e5359372b08b99a2d600273cBrian * optimization! If we find that's not true on some systems, convert 790dc4eea64f56cc93e5359372b08b99a2d600273cBrian * to a macro. 800dc4eea64f56cc93e5359372b08b99a2d600273cBrian */ 81b4480285ed5098f1c862690ee105dd46f5e6cd1eBrianstatic INLINE float 82b4480285ed5098f1c862690ee105dd46f5e6cd1eBrianlerp_2d(float a, float b, 83b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian float v00, float v10, float v01, float v11) 840dc4eea64f56cc93e5359372b08b99a2d600273cBrian{ 8538bee46e83b18ff4ad42d340b507b1a15b4326c7Brian const float temp0 = lerp(a, v00, v10); 8638bee46e83b18ff4ad42d340b507b1a15b4326c7Brian const float temp1 = lerp(a, v01, v11); 8738bee46e83b18ff4ad42d340b507b1a15b4326c7Brian return lerp(b, temp0, temp1); 8838bee46e83b18ff4ad42d340b507b1a15b4326c7Brian} 8938bee46e83b18ff4ad42d340b507b1a15b4326c7Brian 9038bee46e83b18ff4ad42d340b507b1a15b4326c7Brian 9138bee46e83b18ff4ad42d340b507b1a15b4326c7Brian/** 9238bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * As above, but 3D interpolation of 8 values. 9338bee46e83b18ff4ad42d340b507b1a15b4326c7Brian */ 9438bee46e83b18ff4ad42d340b507b1a15b4326c7Brianstatic INLINE float 9538bee46e83b18ff4ad42d340b507b1a15b4326c7Brianlerp_3d(float a, float b, float c, 9638bee46e83b18ff4ad42d340b507b1a15b4326c7Brian float v000, float v100, float v010, float v110, 9738bee46e83b18ff4ad42d340b507b1a15b4326c7Brian float v001, float v101, float v011, float v111) 9838bee46e83b18ff4ad42d340b507b1a15b4326c7Brian{ 9938bee46e83b18ff4ad42d340b507b1a15b4326c7Brian const float temp0 = lerp_2d(a, b, v000, v100, v010, v110); 10038bee46e83b18ff4ad42d340b507b1a15b4326c7Brian const float temp1 = lerp_2d(a, b, v001, v101, v011, v111); 10138bee46e83b18ff4ad42d340b507b1a15b4326c7Brian return lerp(c, temp0, temp1); 1020dc4eea64f56cc93e5359372b08b99a2d600273cBrian} 1030dc4eea64f56cc93e5359372b08b99a2d600273cBrian 1040dc4eea64f56cc93e5359372b08b99a2d600273cBrian 10538bee46e83b18ff4ad42d340b507b1a15b4326c7Brian 1060dc4eea64f56cc93e5359372b08b99a2d600273cBrian/** 107b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul * Compute coord % size for repeat wrap modes. 108b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul * Note that if coord is a signed integer, coord % size doesn't give 109b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul * the right value for coord < 0 (in terms of texture repeat). Just 110b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul * casting to unsigned fixes that. 1110dc4eea64f56cc93e5359372b08b99a2d600273cBrian */ 112b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paulstatic INLINE int 113b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paulrepeat(int coord, unsigned size) 114b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul{ 115b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul return (int) ((unsigned) coord % size); 116b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul} 11708f33a025100dea2d951e6d628891fe294b18082Brian 11808f33a025100dea2d951e6d628891fe294b18082Brian 11908f33a025100dea2d951e6d628891fe294b18082Brian/** 12038bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * Apply texture coord wrapping mode and return integer texture indexes 12138bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * for a vector of four texcoords (S or T or P). 12208f33a025100dea2d951e6d628891fe294b18082Brian * \param wrapMode PIPE_TEX_WRAP_x 12338bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * \param s the incoming texcoords 12408f33a025100dea2d951e6d628891fe294b18082Brian * \param size the texture image size 12538bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * \param icoord returns the integer texcoords 12608f33a025100dea2d951e6d628891fe294b18082Brian * \return integer texture index 12708f33a025100dea2d951e6d628891fe294b18082Brian */ 1284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 129e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_nearest_repeat(const float s[4], unsigned size, int icoord[4]) 1304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 1314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 1324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* s limited to [0,1) */ 1334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* i limited to [0,size-1] */ 1344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 1354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int i = util_ifloor(s[ch] * size); 136b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul icoord[ch] = repeat(i, size); 1374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 1394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 142e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_nearest_clamp(const float s[4], unsigned size, int icoord[4]) 1430dc4eea64f56cc93e5359372b08b99a2d600273cBrian{ 14438bee46e83b18ff4ad42d340b507b1a15b4326c7Brian uint ch; 1454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* s limited to [0,1] */ 1464fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* i limited to [0,size-1] */ 1474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 1484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (s[ch] <= 0.0F) 1494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = 0; 1504fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (s[ch] >= 1.0F) 1514fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = size - 1; 1524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 1534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = util_ifloor(s[ch] * size); 1544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1554fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 1564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 159e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_nearest_clamp_to_edge(const float s[4], unsigned size, int icoord[4]) 1604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 1614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 1624fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* s limited to [min,max] */ 1634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* i limited to [0, size-1] */ 1644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float min = 1.0F / (2.0F * size); 1654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float max = 1.0F - min; 1664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 1674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (s[ch] < min) 1684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = 0; 1694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (s[ch] > max) 1704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = size - 1; 1714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 1724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = util_ifloor(s[ch] * size); 1734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 1754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1764fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 178e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_nearest_clamp_to_border(const float s[4], unsigned size, int icoord[4]) 1794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 1804fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 1814fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* s limited to [min,max] */ 1824fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* i limited to [-1, size] */ 1834fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float min = -1.0F / (2.0F * size); 1844fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float max = 1.0F - min; 1854fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 1864fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (s[ch] <= min) 1874fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = -1; 1884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (s[ch] >= max) 1894fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = size; 1904fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 1914fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = util_ifloor(s[ch] * size); 1924fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1934fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 1944fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 195e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 1964fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 197e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_nearest_mirror_repeat(const float s[4], unsigned size, int icoord[4]) 1984fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 1994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 2004fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float min = 1.0F / (2.0F * size); 2014fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float max = 1.0F - min; 2024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 2034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const int flr = util_ifloor(s[ch]); 2044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u; 2054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (flr & 1) 2064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = 1.0F - (s[ch] - (float) flr); 2074fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 2084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = s[ch] - (float) flr; 2094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (u < min) 2104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = 0; 2114fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (u > max) 2124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = size - 1; 2134fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 2144fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = util_ifloor(u * size); 2154fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 2164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 2174fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 218e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 2194fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 220e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_nearest_mirror_clamp(const float s[4], unsigned size, int icoord[4]) 2214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 2224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 2234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 22408f33a025100dea2d951e6d628891fe294b18082Brian /* s limited to [0,1] */ 22508f33a025100dea2d951e6d628891fe294b18082Brian /* i limited to [0,size-1] */ 2264fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float u = fabsf(s[ch]); 2274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (u <= 0.0F) 2284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = 0; 2294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (u >= 1.0F) 2304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = size - 1; 2314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 2324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = util_ifloor(u * size); 2334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 2344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 2354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 236e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 2374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 2384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_nearest_mirror_clamp_to_edge(const float s[4], unsigned size, 239e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul int icoord[4]) 2404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 2414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 2424fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* s limited to [min,max] */ 2434fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* i limited to [0, size-1] */ 2444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float min = 1.0F / (2.0F * size); 2454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float max = 1.0F - min; 2464fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 2474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float u = fabsf(s[ch]); 2484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (u < min) 2494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = 0; 2504fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (u > max) 2514fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = size - 1; 2524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 2534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = util_ifloor(u * size); 2544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 2554fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 2564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 2574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 2584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 2594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_nearest_mirror_clamp_to_border(const float s[4], unsigned size, 2604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord[4]) 2614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 2624fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 2634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* s limited to [min,max] */ 2644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* i limited to [0, size-1] */ 2654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float min = -1.0F / (2.0F * size); 2664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float max = 1.0F - min; 2674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 2684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float u = fabsf(s[ch]); 2694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (u < min) 2704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = -1; 2714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (u > max) 2724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = size; 2734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 2744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch] = util_ifloor(u * size); 2750dc4eea64f56cc93e5359372b08b99a2d600273cBrian } 2760dc4eea64f56cc93e5359372b08b99a2d600273cBrian} 2770dc4eea64f56cc93e5359372b08b99a2d600273cBrian 27808f33a025100dea2d951e6d628891fe294b18082Brian 27908f33a025100dea2d951e6d628891fe294b18082Brian/** 28038bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * Used to compute texel locations for linear sampling for four texcoords. 28108f33a025100dea2d951e6d628891fe294b18082Brian * \param wrapMode PIPE_TEX_WRAP_x 28238bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * \param s the texcoords 28308f33a025100dea2d951e6d628891fe294b18082Brian * \param size the texture image size 28438bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * \param icoord0 returns first texture indexes 28538bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * \param icoord1 returns second texture indexes (usually icoord0 + 1) 28638bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * \param w returns blend factor/weight between texture indexes 28738bee46e83b18ff4ad42d340b507b1a15b4326c7Brian * \param icoord returns the computed integer texture coords 28808f33a025100dea2d951e6d628891fe294b18082Brian */ 2894fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 2904fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_repeat(const float s[4], unsigned size, 2914fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord0[4], int icoord1[4], float w[4]) 2924fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 2934fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 2944fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 2954fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = s[ch] * size - 0.5F; 296b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul icoord0[ch] = repeat(util_ifloor(u), size); 297b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul icoord1[ch] = repeat(icoord0[ch] + 1, size); 298b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 2994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 3004fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 3014fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 302e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 3034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 3044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_clamp(const float s[4], unsigned size, 30538bee46e83b18ff4ad42d340b507b1a15b4326c7Brian int icoord0[4], int icoord1[4], float w[4]) 3060dc4eea64f56cc93e5359372b08b99a2d600273cBrian{ 30738bee46e83b18ff4ad42d340b507b1a15b4326c7Brian uint ch; 3084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 3094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = CLAMP(s[ch], 0.0F, 1.0F); 3104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = u * size - 0.5f; 3114fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 3124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 313b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 3144fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 3154fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 31638bee46e83b18ff4ad42d340b507b1a15b4326c7Brian 317e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 3184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 3194fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_clamp_to_edge(const float s[4], unsigned size, 3204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord0[4], int icoord1[4], float w[4]) 3214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 3224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 3234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 3244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = CLAMP(s[ch], 0.0F, 1.0F); 3254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = u * size - 0.5f; 3264fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 3274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 3284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (icoord0[ch] < 0) 3294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = 0; 3304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (icoord1[ch] >= (int) size) 3314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = size - 1; 332b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 3334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 3344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 3354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 336e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 3374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 3384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_clamp_to_border(const float s[4], unsigned size, 3394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord0[4], int icoord1[4], float w[4]) 3404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 3414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float min = -1.0F / (2.0F * size); 3424fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float max = 1.0F - min; 3434fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 3444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 3454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = CLAMP(s[ch], min, max); 3464fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = u * size - 0.5f; 3474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 3484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 349b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 3504fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 3514fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 3524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 3534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 3544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 3554fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_mirror_repeat(const float s[4], unsigned size, 3564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord0[4], int icoord1[4], float w[4]) 3574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 3584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 3594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 3604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const int flr = util_ifloor(s[ch]); 3614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u; 3624fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (flr & 1) 3634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = 1.0F - (s[ch] - (float) flr); 3644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 3654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = s[ch] - (float) flr; 3664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = u * size - 0.5F; 3674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 3684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 3694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (icoord0[ch] < 0) 3704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = 0; 3714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (icoord1[ch] >= (int) size) 3724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = size - 1; 373b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 3744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 3754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 3764fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 377e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 3784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 3794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_mirror_clamp(const float s[4], unsigned size, 3804fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord0[4], int icoord1[4], float w[4]) 3814fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 3824fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 3834fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 3844fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = fabsf(s[ch]); 3854fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (u >= 1.0F) 3864fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = (float) size; 3874fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 3884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u *= size; 3894fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u -= 0.5F; 3904fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 3914fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 392b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 3934fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 3944fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 3954fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 396e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 3974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 3984fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_mirror_clamp_to_edge(const float s[4], unsigned size, 3994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord0[4], int icoord1[4], float w[4]) 4004fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 4014fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 4024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 4034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = fabsf(s[ch]); 4044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (u >= 1.0F) 4054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = (float) size; 4064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 4074fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u *= size; 4084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u -= 0.5F; 4094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 4104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 4114fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (icoord0[ch] < 0) 4124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = 0; 4134fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (icoord1[ch] >= (int) size) 4144fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = size - 1; 415b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 4164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 4174fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 4184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 419e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 4204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 4214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_mirror_clamp_to_border(const float s[4], unsigned size, 4224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int icoord0[4], int icoord1[4], float w[4]) 4234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 4244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float min = -1.0F / (2.0F * size); 4254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float max = 1.0F - min; 4264fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 4274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 4284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = fabsf(s[ch]); 4294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (u <= min) 4304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = min * size; 4314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (u >= max) 4324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u = max * size; 4334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 4344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u *= size; 4354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u -= 0.5F; 4364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 4374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 438b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 4390dc4eea64f56cc93e5359372b08b99a2d600273cBrian } 4400dc4eea64f56cc93e5359372b08b99a2d600273cBrian} 4410dc4eea64f56cc93e5359372b08b99a2d600273cBrian 4420dc4eea64f56cc93e5359372b08b99a2d600273cBrian 443b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian/** 444b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian * For RECT textures / unnormalized texcoords 445b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian * Only a subset of wrap modes supported. 446b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian */ 4474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 448e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_nearest_unorm_clamp(const float s[4], unsigned size, int icoord[4]) 449b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian{ 45038bee46e83b18ff4ad42d340b507b1a15b4326c7Brian uint ch; 4514fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 4524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int i = util_ifloor(s[ch]); 4534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch]= CLAMP(i, 0, (int) size-1); 4544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 4554fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 4564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 457e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 458e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul/** 459e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul * Handles clamp_to_edge and clamp_to_border: 4604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 4614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 4624fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_nearest_unorm_clamp_to_border(const float s[4], unsigned size, 463e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul int icoord[4]) 4644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 4654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 4664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 4674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord[ch]= util_ifloor( CLAMP(s[ch], 0.5F, (float) size - 0.5F) ); 468b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 469b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian} 470b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 471b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 472b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian/** 473b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian * For RECT textures / unnormalized texcoords. 474b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian * Only a subset of wrap modes supported. 475b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian */ 4764fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 4774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellwrap_linear_unorm_clamp(const float s[4], unsigned size, 478e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul int icoord0[4], int icoord1[4], float w[4]) 479b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian{ 48038bee46e83b18ff4ad42d340b507b1a15b4326c7Brian uint ch; 4814fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 4824fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* Not exactly what the spec says, but it matches NVIDIA output */ 4834fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = CLAMP(s[ch] - 0.5F, 0.0f, (float) size - 1.0f); 4844fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 4854fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 486b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 487b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 488b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian} 489b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 490e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 4914fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 492e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulwrap_linear_unorm_clamp_to_border(const float s[4], unsigned size, 493e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul int icoord0[4], int icoord1[4], float w[4]) 49434a48abd5ff82ce9748fc29191e35a0985d47c5fBrian{ 4954fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell uint ch; 4964fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (ch = 0; ch < 4; ch++) { 4974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float u = CLAMP(s[ch], 0.5F, (float) size - 0.5F); 4984fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell u -= 0.5F; 4994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord0[ch] = util_ifloor(u); 5004fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = icoord0[ch] + 1; 5014fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (icoord1[ch] > (int) size - 1) 5024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell icoord1[ch] = size - 1; 503b4a40d10524a4be6a59805589ee4209ebdb1de4fBrian Paul w[ch] = frac(u); 50434a48abd5ff82ce9748fc29191e35a0985d47c5fBrian } 5054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 5064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 50734a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 50834a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 509b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian/** 510b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian * Examine the quad's texture coordinates to compute the partial 511b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian * derivatives w.r.t X and Y, then compute lambda (level of detail). 512b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian */ 513b4480285ed5098f1c862690ee105dd46f5e6cd1eBrianstatic float 5144fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellcompute_lambda_1d(const struct sp_sampler_varient *samp, 5154fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 5164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 5174fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 5184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lodbias) 519b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian{ 52000c835918259f8d41c3f74eca679a972713b11b2Keith Whitwell const struct pipe_texture *texture = samp->texture; 52100c835918259f8d41c3f74eca679a972713b11b2Keith Whitwell const struct pipe_sampler_state *sampler = samp->sampler; 5224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]); 5234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]); 5244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rho = MAX2(dsdx, dsdy) * texture->width[0]; 5254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lambda; 526b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian 5271a46dcc8a927dfb38ca1381e7b3dafb789f8257cBrian Paul lambda = util_fast_log2(rho); 5280b9e96fae9493d5d58f046e01c983a3c4267090eBrian lambda += lodbias + sampler->lod_bias; 5290b9e96fae9493d5d58f046e01c983a3c4267090eBrian lambda = CLAMP(lambda, sampler->min_lod, sampler->max_lod); 530b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian 531b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian return lambda; 532b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian} 533b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian 534e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 5354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic float 5364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellcompute_lambda_2d(const struct sp_sampler_varient *samp, 5374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 5384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 5394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 5404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lodbias) 54109a1b912605ff48c8782dcc5aae55ac77e27037bBrian{ 5424fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct pipe_texture *texture = samp->texture; 5434fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct pipe_sampler_state *sampler = samp->sampler; 5444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]); 5454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]); 5464fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dtdx = fabsf(t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]); 5474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dtdy = fabsf(t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]); 5484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float maxx = MAX2(dsdx, dsdy) * texture->width[0]; 5494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float maxy = MAX2(dtdx, dtdy) * texture->height[0]; 5504fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rho = MAX2(maxx, maxy); 5514fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lambda; 552c7722edcfdf36e0d0bfdc51013ecb199fc7fa9f6Brian 5531a46dcc8a927dfb38ca1381e7b3dafb789f8257cBrian Paul lambda = util_fast_log2(rho); 5540b9e96fae9493d5d58f046e01c983a3c4267090eBrian lambda += lodbias + sampler->lod_bias; 5550b9e96fae9493d5d58f046e01c983a3c4267090eBrian lambda = CLAMP(lambda, sampler->min_lod, sampler->max_lod); 556c7722edcfdf36e0d0bfdc51013ecb199fc7fa9f6Brian 557b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian return lambda; 55809a1b912605ff48c8782dcc5aae55ac77e27037bBrian} 55909a1b912605ff48c8782dcc5aae55ac77e27037bBrian 56008f33a025100dea2d951e6d628891fe294b18082Brian 5614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic float 5624fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellcompute_lambda_3d(const struct sp_sampler_varient *samp, 5634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 5644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 5654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 5664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lodbias) 56709a1b912605ff48c8782dcc5aae55ac77e27037bBrian{ 56800c835918259f8d41c3f74eca679a972713b11b2Keith Whitwell const struct pipe_texture *texture = samp->texture; 56900c835918259f8d41c3f74eca679a972713b11b2Keith Whitwell const struct pipe_sampler_state *sampler = samp->sampler; 5704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]); 5714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]); 5724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dtdx = fabsf(t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]); 5734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dtdy = fabsf(t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]); 5744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dpdx = fabsf(p[QUAD_BOTTOM_RIGHT] - p[QUAD_BOTTOM_LEFT]); 5754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float dpdy = fabsf(p[QUAD_TOP_LEFT] - p[QUAD_BOTTOM_LEFT]); 5764fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float maxx = MAX2(dsdx, dsdy) * texture->width[0]; 5774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float maxy = MAX2(dtdx, dtdy) * texture->height[0]; 5784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float maxz = MAX2(dpdx, dpdy) * texture->depth[0]; 5794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rho, lambda; 58000c835918259f8d41c3f74eca679a972713b11b2Keith Whitwell 5814fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell rho = MAX2(maxx, maxy); 5824fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell rho = MAX2(rho, maxz); 583c7722edcfdf36e0d0bfdc51013ecb199fc7fa9f6Brian 5844fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell lambda = util_fast_log2(rho); 5854fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell lambda += lodbias + sampler->lod_bias; 5864fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell lambda = CLAMP(lambda, sampler->min_lod, sampler->max_lod); 5874fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 5884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return lambda; 58909a1b912605ff48c8782dcc5aae55ac77e27037bBrian} 59009a1b912605ff48c8782dcc5aae55ac77e27037bBrian 59108f33a025100dea2d951e6d628891fe294b18082Brian 592e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul/** 593e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul * Compute lambda for a vertex texture sampler. 594e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul * Since there aren't derivatives to use, just return the LOD bias. 595e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul */ 5964fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic float 5974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellcompute_lambda_vert(const struct sp_sampler_varient *samp, 5984fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 5994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 6004fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 6014fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lodbias) 6024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 6034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return lodbias; 6044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 6054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 6064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 6074fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 6084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell/** 6094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * Get a texel from a texture, using the texture tile cache. 6104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * 61181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell * \param addr the template tex address containing cube, z, face info. 6124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * \param x the x coord of texel within 2D image 613b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian * \param y the y coord of texel within 2D image 614b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian * \param rgba the quad to put the texel/color into 61570eb7996f265f3634dabda078f13d1be3533cc65Brian * 61680c78472ad43f4288c9ef5076074ba9d31a39885Keith Whitwell * XXX maybe move this into sp_tex_tile_cache.c and merge with the 61770eb7996f265f3634dabda078f13d1be3533cc65Brian * sp_get_cached_tile_tex() function. Also, get 4 texels instead of 1... 618b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian */ 61981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 62081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 62181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 62281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 62381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellstatic INLINE const float * 62481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellget_texel_2d_no_border(const struct sp_sampler_varient *samp, 62581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr, int x, int y) 626b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian{ 62781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const struct softpipe_tex_cached_tile *tile; 62881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 62981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.x = x / TILE_SIZE; 63081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.y = y / TILE_SIZE; 63181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell y %= TILE_SIZE; 63281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell x %= TILE_SIZE; 63381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 63481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tile = sp_get_cached_tile_tex(samp->cache, addr); 63581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 63681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell return &tile->data.color[y][x][0]; 63781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell} 63881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 63981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 64081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellstatic INLINE const float * 64181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellget_texel_2d(const struct sp_sampler_varient *samp, 64281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr, int x, int y) 64381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell{ 64481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const struct pipe_texture *texture = samp->texture; 64581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell unsigned level = addr.bits.level; 64681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 64781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell if (x < 0 || x >= (int) texture->width[level] || 64881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell y < 0 || y >= (int) texture->height[level]) { 64981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell return samp->sampler->border_color; 65081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell } 65181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell else { 65281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell return get_texel_2d_no_border( samp, addr, x, y ); 65381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell } 65481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell} 6556142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 6566142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 65781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell/* Gather a quad of adjacent texels within a tile: 65881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell */ 65981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellstatic INLINE void 66081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellget_texel_quad_2d_no_border_single_tile(const struct sp_sampler_varient *samp, 66181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr, 66281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell unsigned x, unsigned y, 66381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *out[4]) 66481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell{ 66581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const struct softpipe_tex_cached_tile *tile; 66681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 66781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.x = x / TILE_SIZE; 66881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.y = y / TILE_SIZE; 6696142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell y %= TILE_SIZE; 6706142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell x %= TILE_SIZE; 67181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 67281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tile = sp_get_cached_tile_tex(samp->cache, addr); 6736142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 6746142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell out[0] = &tile->data.color[y ][x ][0]; 6756142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell out[1] = &tile->data.color[y ][x+1][0]; 6766142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell out[2] = &tile->data.color[y+1][x ][0]; 6776142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell out[3] = &tile->data.color[y+1][x+1][0]; 6786142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell} 6796142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 68081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 68181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell/* Gather a quad of potentially non-adjacent texels: 68281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell */ 68381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellstatic INLINE void 68481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellget_texel_quad_2d_no_border(const struct sp_sampler_varient *samp, 68581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr, 68681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell int x0, int y0, 68781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell int x1, int y1, 68881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *out[4]) 68981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell{ 69081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[0] = get_texel_2d_no_border( samp, addr, x0, y0 ); 69181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[1] = get_texel_2d_no_border( samp, addr, x1, y0 ); 69281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[2] = get_texel_2d_no_border( samp, addr, x0, y1 ); 69381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[3] = get_texel_2d_no_border( samp, addr, x1, y1 ); 69481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell} 69581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 69681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell/* Can involve a lot of unnecessary checks for border color: 69781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell */ 69881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellstatic INLINE void 69981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellget_texel_quad_2d(const struct sp_sampler_varient *samp, 70081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr, 70181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell int x0, int y0, 70281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell int x1, int y1, 70381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *out[4]) 70481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell{ 70581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[0] = get_texel_2d( samp, addr, x0, y0 ); 70681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[1] = get_texel_2d( samp, addr, x1, y0 ); 70781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[3] = get_texel_2d( samp, addr, x1, y1 ); 70881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out[2] = get_texel_2d( samp, addr, x0, y1 ); 70981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell} 71081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 71181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 71281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 71381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell/* 3d varients: 71481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell */ 7156142de393fe34ff0866f8489f1292eb473276f11Keith Whitwellstatic INLINE const float * 71681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellget_texel_3d_no_border(const struct sp_sampler_varient *samp, 717e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul union tex_tile_address addr, int x, int y, int z) 7186142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell{ 719153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell const struct softpipe_tex_cached_tile *tile; 7206142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 721153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.bits.x = x / TILE_SIZE; 722153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.bits.y = y / TILE_SIZE; 72381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.z = z; 7246142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell y %= TILE_SIZE; 7256142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell x %= TILE_SIZE; 7266142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 727153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell tile = sp_get_cached_tile_tex(samp->cache, addr); 728153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell 7296142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell return &tile->data.color[y][x][0]; 7306142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell} 7316142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 7326142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 73381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellstatic INLINE const float * 73481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwellget_texel_3d(const struct sp_sampler_varient *samp, 735e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul union tex_tile_address addr, int x, int y, int z) 736b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian{ 737aa5db684382bd8662a83ca09ed000e4a5a1013f9Keith Whitwell const struct pipe_texture *texture = samp->texture; 73881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell unsigned level = addr.bits.level; 7390b9e96fae9493d5d58f046e01c983a3c4267090eBrian 7400b9e96fae9493d5d58f046e01c983a3c4267090eBrian if (x < 0 || x >= (int) texture->width[level] || 7410b9e96fae9493d5d58f046e01c983a3c4267090eBrian y < 0 || y >= (int) texture->height[level] || 7420b9e96fae9493d5d58f046e01c983a3c4267090eBrian z < 0 || z >= (int) texture->depth[level]) { 74381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell return samp->sampler->border_color; 744ea0007cc4ca077c7e3951c4fda122bd242728d70Brian Paul } 745ea0007cc4ca077c7e3951c4fda122bd242728d70Brian Paul else { 74681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell return get_texel_3d_no_border( samp, addr, x, y, z ); 747ea0007cc4ca077c7e3951c4fda122bd242728d70Brian Paul } 748b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian} 749b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian 750b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian 75175276ea316610a5737f2115326482024aa09d02aroot/** 75275276ea316610a5737f2115326482024aa09d02aroot * Given the logbase2 of a mipmap's base level size and a mipmap level, 75375276ea316610a5737f2115326482024aa09d02aroot * return the size (in texels) of that mipmap level. 75475276ea316610a5737f2115326482024aa09d02aroot * For example, if level[0].width = 256 then base_pot will be 8. 75575276ea316610a5737f2115326482024aa09d02aroot * If level = 2, then we'll return 64 (the width at level=2). 75675276ea316610a5737f2115326482024aa09d02aroot * Return 1 if level > base_pot. 75775276ea316610a5737f2115326482024aa09d02aroot */ 75875276ea316610a5737f2115326482024aa09d02arootstatic INLINE unsigned 75975276ea316610a5737f2115326482024aa09d02arootpot_level_size(unsigned base_pot, unsigned level) 76075276ea316610a5737f2115326482024aa09d02aroot{ 76175276ea316610a5737f2115326482024aa09d02aroot return (base_pot >= level) ? (1 << (base_pot - level)) : 1; 76275276ea316610a5737f2115326482024aa09d02aroot} 76375276ea316610a5737f2115326482024aa09d02aroot 76475276ea316610a5737f2115326482024aa09d02aroot 76581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell/* Some image-filter fastpaths: 76681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell */ 767efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paulstatic INLINE void 7684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellimg_filter_2d_linear_repeat_POT(struct tgsi_sampler *tgsi_sampler, 769e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float s[QUAD_SIZE], 770e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float t[QUAD_SIZE], 771e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float p[QUAD_SIZE], 772e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul float lodbias, 773e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul float rgba[NUM_CHANNELS][QUAD_SIZE]) 7746142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell{ 7754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 7766142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell unsigned j; 7776142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell unsigned level = samp->level; 77875276ea316610a5737f2115326482024aa09d02aroot unsigned xpot = pot_level_size(samp->xpot, level); 77975276ea316610a5737f2115326482024aa09d02aroot unsigned ypot = pot_level_size(samp->ypot, level); 7801fd40e506c2207664f0c3f435e4614472ea4c540Keith Whitwell unsigned xmax = (xpot - 1) & (TILE_SIZE - 1); /* MIN2(TILE_SIZE, xpot) - 1; */ 7811fd40e506c2207664f0c3f435e4614472ea4c540Keith Whitwell unsigned ymax = (ypot - 1) & (TILE_SIZE - 1); /* MIN2(TILE_SIZE, ypot) - 1; */ 782153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell union tex_tile_address addr; 783153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell 784153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.value = 0; 785153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.bits.level = samp->level; 786153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell 7876142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 7886142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int c; 7896142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 7906142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell float u = s[j] * xpot - 0.5F; 7916142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell float v = t[j] * ypot - 0.5F; 7926142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 7936142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int uflr = util_ifloor(u); 7946142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int vflr = util_ifloor(v); 7956142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 7966142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell float xw = u - (float)uflr; 7976142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell float yw = v - (float)vflr; 7986142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 7996142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int x0 = uflr & (xpot - 1); 8006142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int y0 = vflr & (ypot - 1); 8016142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 802153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell const float *tx[4]; 8036142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8046142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell /* Can we fetch all four at once: 8056142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell */ 806e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul if (x0 < xmax && y0 < ymax) { 80781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell get_texel_quad_2d_no_border_single_tile(samp, addr, x0, y0, tx); 8086142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 809e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul else { 8104f409da3456070946eda2d8ff5153b3b4306bb46Keith Whitwell unsigned x1 = (x0 + 1) & (xpot - 1); 8114f409da3456070946eda2d8ff5153b3b4306bb46Keith Whitwell unsigned y1 = (y0 + 1) & (ypot - 1); 81281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell get_texel_quad_2d_no_border(samp, addr, x0, y0, x1, y1, tx); 8136142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 8146142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8156142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell /* interpolate R, G, B, A */ 8166142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell for (c = 0; c < 4; c++) { 8176142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell rgba[c][j] = lerp_2d(xw, yw, 8186142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell tx[0][c], tx[1][c], 8196142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell tx[2][c], tx[3][c]); 8206142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 8216142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 8226142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell} 8236142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8246142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic INLINE void 8264fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellimg_filter_2d_nearest_repeat_POT(struct tgsi_sampler *tgsi_sampler, 8274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 8284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 8294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 8304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lodbias, 8314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 8326142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell{ 8334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 8346142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell unsigned j; 8356142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell unsigned level = samp->level; 83675276ea316610a5737f2115326482024aa09d02aroot unsigned xpot = pot_level_size(samp->xpot, level); 83775276ea316610a5737f2115326482024aa09d02aroot unsigned ypot = pot_level_size(samp->ypot, level); 838153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell union tex_tile_address addr; 839153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell 840153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.value = 0; 841153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.bits.level = samp->level; 8426142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8436142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 8446142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int c; 8456142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8465fdac2dcea09c654725666b3cab5f59dfc9e31a5Keith Whitwell float u = s[j] * xpot; 8475fdac2dcea09c654725666b3cab5f59dfc9e31a5Keith Whitwell float v = t[j] * ypot; 8486142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8496142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int uflr = util_ifloor(u); 8506142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int vflr = util_ifloor(v); 8516142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8526142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int x0 = uflr & (xpot - 1); 8536142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int y0 = vflr & (ypot - 1); 8546142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 85581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *out = get_texel_2d_no_border(samp, addr, x0, y0); 8566142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8576142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell for (c = 0; c < 4; c++) { 8586142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell rgba[c][j] = out[c]; 8596142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 8606142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 8616142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell} 8626142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8636142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic INLINE void 8654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellimg_filter_2d_nearest_clamp_POT(struct tgsi_sampler *tgsi_sampler, 8664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 8674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 8684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 8694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lodbias, 8704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 8716142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell{ 8724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 8736142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell unsigned j; 8746142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell unsigned level = samp->level; 87575276ea316610a5737f2115326482024aa09d02aroot unsigned xpot = pot_level_size(samp->xpot, level); 87675276ea316610a5737f2115326482024aa09d02aroot unsigned ypot = pot_level_size(samp->ypot, level); 877153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell union tex_tile_address addr; 878153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell 879153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.value = 0; 880153e474d22d1b440bb6bd7b04dabf244d7455582Keith Whitwell addr.bits.level = samp->level; 8816142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8826142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 8836142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int c; 8846142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8855fdac2dcea09c654725666b3cab5f59dfc9e31a5Keith Whitwell float u = s[j] * xpot; 8865fdac2dcea09c654725666b3cab5f59dfc9e31a5Keith Whitwell float v = t[j] * ypot; 8876142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8886142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell int x0, y0; 8896142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell const float *out; 8906142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8916142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell x0 = util_ifloor(u); 8926142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell if (x0 < 0) 8936142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell x0 = 0; 8946142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell else if (x0 > xpot - 1) 8956142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell x0 = xpot - 1; 8966142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 8976142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell y0 = util_ifloor(v); 8986142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell if (y0 < 0) 8996142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell y0 = 0; 9006142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell else if (y0 > ypot - 1) 9016142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell y0 = ypot - 1; 9026142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 90381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell out = get_texel_2d_no_border(samp, addr, x0, y0); 9046142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 9056142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell for (c = 0; c < 4; c++) { 9066142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell rgba[c][j] = out[c]; 9076142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 9086142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 9096142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell} 9106142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 911e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 9126142de393fe34ff0866f8489f1292eb473276f11Keith Whitwellstatic void 9134fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellimg_filter_1d_nearest(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], 9174fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lodbias, 9184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 9196142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell{ 9204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 9216142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell const struct pipe_texture *texture = samp->texture; 9224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell unsigned level0, j; 9234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int width; 9244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int x[4]; 92581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr; 9266142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 9274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = samp->level; 9284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell width = texture->width[level0]; 9296142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 9304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(width > 0); 9314f409da3456070946eda2d8ff5153b3b4306bb46Keith Whitwell 93281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.value = 0; 93381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.level = samp->level; 93481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 9354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_s(s, width, x); 9364f409da3456070946eda2d8ff5153b3b4306bb46Keith Whitwell 9374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 93881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *out = get_texel_2d(samp, addr, x[j], 0); 93981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell int c; 94081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell for (c = 0; c < 4; c++) { 94181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell rgba[c][j] = out[c]; 94281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell } 9434f409da3456070946eda2d8ff5153b3b4306bb46Keith Whitwell } 9446142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell} 9456142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 9464fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 94760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwellstatic void 94860adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwellimg_filter_2d_nearest(struct tgsi_sampler *tgsi_sampler, 94960adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float s[QUAD_SIZE], 95060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float t[QUAD_SIZE], 95160adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float p[QUAD_SIZE], 95260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell float lodbias, 95360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 95460adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell{ 95560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 95660adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const struct pipe_texture *texture = samp->texture; 95760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell unsigned level0, j; 95860adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell int width, height; 95960adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell int x[4], y[4]; 96060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell union tex_tile_address addr; 96181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 96281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 96360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell level0 = samp->level; 96460adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell width = texture->width[level0]; 96560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell height = texture->height[level0]; 96660adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 96760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell assert(width > 0); 9685dbedf3d7e99efe35fad308d382670e44cd60e25Brian Paul assert(height > 0); 96960adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 97060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell addr.value = 0; 97160adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell addr.bits.level = samp->level; 97260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 97360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell samp->nearest_texcoord_s(s, width, x); 97460adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell samp->nearest_texcoord_t(t, height, y); 97560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 97660adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 97760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float *out = get_texel_2d(samp, addr, x[j], y[j]); 97860adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell int c; 97960adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell for (c = 0; c < 4; c++) { 98060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell rgba[c][j] = out[c]; 98160adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell } 98260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell } 98360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell} 98460adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 985e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 9869659aa6482291d1530c74450612bcd952f542e01José Fonsecastatic INLINE union tex_tile_address 987e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulface(union tex_tile_address addr, unsigned face ) 98881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell{ 98981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.face = face; 99081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell return addr; 99181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell} 99281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 993e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 994e12810d92ffb3547680b227bf88937c03018112bBrianstatic void 99560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwellimg_filter_cube_nearest(struct tgsi_sampler *tgsi_sampler, 996e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float s[QUAD_SIZE], 997e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float t[QUAD_SIZE], 998e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float p[QUAD_SIZE], 999e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul float lodbias, 1000e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul float rgba[NUM_CHANNELS][QUAD_SIZE]) 10010dc4eea64f56cc93e5359372b08b99a2d600273cBrian{ 10024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 1003aa5db684382bd8662a83ca09ed000e4a5a1013f9Keith Whitwell const struct pipe_texture *texture = samp->texture; 10044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const unsigned *faces = samp->faces; /* zero when not cube-mapping */ 10054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell unsigned level0, j; 1006f9e331a574cc4eba60e0de5a29a4aed4bb40520cBrian int width, height; 10074fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int x[4], y[4]; 100881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr; 100981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 10104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = samp->level; 10110b9e96fae9493d5d58f046e01c983a3c4267090eBrian width = texture->width[level0]; 10120b9e96fae9493d5d58f046e01c983a3c4267090eBrian height = texture->height[level0]; 101309a1b912605ff48c8782dcc5aae55ac77e27037bBrian 1014b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian assert(width > 0); 10155dbedf3d7e99efe35fad308d382670e44cd60e25Brian Paul assert(height > 0); 101681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 101781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.value = 0; 101881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.level = samp->level; 1019612cfb749c3526eeb446bbc631bf24716522f373Brian 10204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_s(s, width, x); 10214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_t(t, height, y); 1022f9e331a574cc4eba60e0de5a29a4aed4bb40520cBrian 10234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 102481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *out = get_texel_2d(samp, face(addr, faces[j]), x[j], y[j]); 102581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell int c; 102681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell for (c = 0; c < 4; c++) { 102781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell rgba[c][j] = out[c]; 102881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell } 10290dc4eea64f56cc93e5359372b08b99a2d600273cBrian } 10300dc4eea64f56cc93e5359372b08b99a2d600273cBrian} 103134a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 103234a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 10334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 10344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellimg_filter_3d_nearest(struct tgsi_sampler *tgsi_sampler, 10354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 10364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 10374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 10384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lodbias, 10394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 104034a48abd5ff82ce9748fc29191e35a0985d47c5fBrian{ 10414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 1042aa5db684382bd8662a83ca09ed000e4a5a1013f9Keith Whitwell const struct pipe_texture *texture = samp->texture; 10434fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell unsigned level0, j; 10443d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian int width, height, depth; 10454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int x[4], y[4], z[4]; 104681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr; 1047b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 10484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = samp->level; 10490b9e96fae9493d5d58f046e01c983a3c4267090eBrian width = texture->width[level0]; 10500b9e96fae9493d5d58f046e01c983a3c4267090eBrian height = texture->height[level0]; 10510b9e96fae9493d5d58f046e01c983a3c4267090eBrian depth = texture->depth[level0]; 10523d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian 10533d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian assert(width > 0); 10543d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian assert(height > 0); 10553d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian assert(depth > 0); 10563d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian 10574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_s(s, width, x); 10584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_t(t, height, y); 10594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_p(p, depth, z); 10603d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian 106181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.value = 0; 106281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.level = samp->level; 106381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 10644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 106581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *out = get_texel_3d(samp, addr, x[j], y[j], z[j]); 106681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell int c; 106781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell for (c = 0; c < 4; c++) { 106881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell rgba[c][j] = out[c]; 106981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell } 10703d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian } 107134a48abd5ff82ce9748fc29191e35a0985d47c5fBrian} 107234a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 107334a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 107434a48abd5ff82ce9748fc29191e35a0985d47c5fBrianstatic void 10754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellimg_filter_1d_linear(struct tgsi_sampler *tgsi_sampler, 10764fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 10774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 10784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 10794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lodbias, 10804fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 108134a48abd5ff82ce9748fc29191e35a0985d47c5fBrian{ 10824fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 10834fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct pipe_texture *texture = samp->texture; 10844fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell unsigned level0, j; 10854fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int width; 10864fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int x0[4], x1[4]; 10874fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float xw[4]; /* weights */ 108881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr; 10894fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 10904fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = samp->level; 10914fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell width = texture->width[level0]; 10924fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 10934fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(width > 0); 10944fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 109581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.value = 0; 109681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.level = samp->level; 109781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 10984fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_s(s, width, x0, x1, xw); 10994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1100b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian for (j = 0; j < QUAD_SIZE; j++) { 110181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx0 = get_texel_2d(samp, addr, x0[j], 0); 110281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx1 = get_texel_2d(samp, addr, x1[j], 0); 11034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int c; 11044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 11054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* interpolate R, G, B, A */ 11064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (c = 0; c < 4; c++) { 110781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell rgba[c][j] = lerp(xw[j], tx0[c], tx1[c]); 11084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1109b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian } 111034a48abd5ff82ce9748fc29191e35a0985d47c5fBrian} 111134a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 111281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 111360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwellstatic void 111460adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwellimg_filter_2d_linear(struct tgsi_sampler *tgsi_sampler, 111560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float s[QUAD_SIZE], 111660adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float t[QUAD_SIZE], 111760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float p[QUAD_SIZE], 111860adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell float lodbias, 111960adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 112060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell{ 112160adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 112260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const struct pipe_texture *texture = samp->texture; 112360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell unsigned level0, j; 112460adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell int width, height; 112560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell int x0[4], y0[4], x1[4], y1[4]; 112660adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell float xw[4], yw[4]; /* weights */ 112760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell union tex_tile_address addr; 112860adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 112960adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell level0 = samp->level; 113060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell width = texture->width[level0]; 113160adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell height = texture->height[level0]; 113260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 113360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell assert(width > 0); 11345dbedf3d7e99efe35fad308d382670e44cd60e25Brian Paul assert(height > 0); 113560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 113660adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell addr.value = 0; 113760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell addr.bits.level = samp->level; 113860adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 113960adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell samp->linear_texcoord_s(s, width, x0, x1, xw); 114060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell samp->linear_texcoord_t(t, height, y0, y1, yw); 114160adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 114260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 114360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float *tx0 = get_texel_2d(samp, addr, x0[j], y0[j]); 114460adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float *tx1 = get_texel_2d(samp, addr, x1[j], y0[j]); 114560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float *tx2 = get_texel_2d(samp, addr, x0[j], y1[j]); 114660adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell const float *tx3 = get_texel_2d(samp, addr, x1[j], y1[j]); 114760adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell int c; 114860adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell 114960adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell /* interpolate R, G, B, A */ 115060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell for (c = 0; c < 4; c++) { 115160adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell rgba[c][j] = lerp_2d(xw[j], yw[j], 115260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell tx0[c], tx1[c], 115360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell tx2[c], tx3[c]); 115460adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell } 115560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell } 115660adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell} 115781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 115881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 1159b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrianstatic void 116060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwellimg_filter_cube_linear(struct tgsi_sampler *tgsi_sampler, 1161e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float s[QUAD_SIZE], 1162e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float t[QUAD_SIZE], 1163e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float p[QUAD_SIZE], 1164e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul float lodbias, 1165e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul float rgba[NUM_CHANNELS][QUAD_SIZE]) 1166b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian{ 11674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 1168aa5db684382bd8662a83ca09ed000e4a5a1013f9Keith Whitwell const struct pipe_texture *texture = samp->texture; 11694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const unsigned *faces = samp->faces; /* zero when not cube-mapping */ 11704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell unsigned level0, j; 1171b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian int width, height; 11724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int x0[4], y0[4], x1[4], y1[4]; 11734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float xw[4], yw[4]; /* weights */ 117481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr; 1175b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 11764fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = samp->level; 11770b9e96fae9493d5d58f046e01c983a3c4267090eBrian width = texture->width[level0]; 11780b9e96fae9493d5d58f046e01c983a3c4267090eBrian height = texture->height[level0]; 1179b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 1180b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian assert(width > 0); 11815dbedf3d7e99efe35fad308d382670e44cd60e25Brian Paul assert(height > 0); 1182b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 118381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.value = 0; 118481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.level = samp->level; 118581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 11864fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_s(s, width, x0, x1, xw); 11874e5c385d2183e7006c9d7ac0823919156bd4b8e6Brian Paul samp->linear_texcoord_t(t, height, y0, y1, yw); 11884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 11894fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 119081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addrj = face(addr, faces[j]); 119181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx0 = get_texel_2d(samp, addrj, x0[j], y0[j]); 119281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx1 = get_texel_2d(samp, addrj, x1[j], y0[j]); 119381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx2 = get_texel_2d(samp, addrj, x0[j], y1[j]); 119481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx3 = get_texel_2d(samp, addrj, x1[j], y1[j]); 11954fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int c; 11964fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 11974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* interpolate R, G, B, A */ 11984fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (c = 0; c < 4; c++) { 11994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell rgba[c][j] = lerp_2d(xw[j], yw[j], 120081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tx0[c], tx1[c], 120181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tx2[c], tx3[c]); 1202b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 12034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 12044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 12054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 12064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 12074fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 12084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellimg_filter_3d_linear(struct tgsi_sampler *tgsi_sampler, 12094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 12104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 12114fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 12124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lodbias, 12134fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 12144fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 12154fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 12164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct pipe_texture *texture = samp->texture; 12174fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell unsigned level0, j; 12184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int width, height, depth; 12194fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int x0[4], x1[4], y0[4], y1[4], z0[4], z1[4]; 12204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float xw[4], yw[4], zw[4]; /* interpolation weights */ 122181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell union tex_tile_address addr; 12224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 12234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = samp->level; 12244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell width = texture->width[level0]; 12254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell height = texture->height[level0]; 12264fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell depth = texture->depth[level0]; 12274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 122881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.value = 0; 122981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell addr.bits.level = level0; 123081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 12314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(width > 0); 12324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(height > 0); 12334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(depth > 0); 12344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 12354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_s(s, width, x0, x1, xw); 12364e5c385d2183e7006c9d7ac0823919156bd4b8e6Brian Paul samp->linear_texcoord_t(t, height, y0, y1, yw); 12374e5c385d2183e7006c9d7ac0823919156bd4b8e6Brian Paul samp->linear_texcoord_p(p, depth, z0, z1, zw); 12384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 12394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 12404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int c; 12414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 124281601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx00 = get_texel_3d(samp, addr, x0[j], y0[j], z0[j]); 124381601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx01 = get_texel_3d(samp, addr, x1[j], y0[j], z0[j]); 124481601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx02 = get_texel_3d(samp, addr, x0[j], y1[j], z0[j]); 124581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx03 = get_texel_3d(samp, addr, x1[j], y1[j], z0[j]); 124681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 124781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx10 = get_texel_3d(samp, addr, x0[j], y0[j], z1[j]); 124881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx11 = get_texel_3d(samp, addr, x1[j], y0[j], z1[j]); 124981601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx12 = get_texel_3d(samp, addr, x0[j], y1[j], z1[j]); 125081601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell const float *tx13 = get_texel_3d(samp, addr, x1[j], y1[j], z1[j]); 125181601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell 12524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* interpolate R, G, B, A */ 12534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (c = 0; c < 4; c++) { 12544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell rgba[c][j] = lerp_3d(xw[j], yw[j], zw[j], 125581601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tx00[c], tx01[c], 125681601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tx02[c], tx03[c], 125781601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tx10[c], tx11[c], 125881601d85ef6b82297b046d5aab1b70e75168c2faKeith Whitwell tx12[c], tx13[c]); 12594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 12604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 12614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 12624fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 12634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 12644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 12654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellmip_filter_linear(struct tgsi_sampler *tgsi_sampler, 1266e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float s[QUAD_SIZE], 1267e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float t[QUAD_SIZE], 1268e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const float p[QUAD_SIZE], 1269e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul float lodbias, 1270e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul float rgba[NUM_CHANNELS][QUAD_SIZE]) 12714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 12724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 12734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct pipe_texture *texture = samp->texture; 12744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int level0; 12754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lambda; 12764fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 12774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell lambda = samp->compute_lambda(samp, s, t, p, lodbias); 12784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = (int)lambda; 12794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 12804fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (lambda < 0.0) { 12814fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = 0; 12824fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->mag_img_filter( tgsi_sampler, s, t, p, 0, rgba ); 12834fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 12844fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else if (level0 >= texture->last_level) { 12854fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = texture->last_level; 12864fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->min_img_filter( tgsi_sampler, s, t, p, 0, rgba ); 12874fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 12884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 12894fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float levelBlend = lambda - level0; 12904fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba0[4][4]; 12914fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba1[4][4]; 12924fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int c,j; 12934fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 12944fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = level0; 12954fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->min_img_filter( tgsi_sampler, s, t, p, 0, rgba0 ); 12964fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 12974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = level0+1; 12984fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->min_img_filter( tgsi_sampler, s, t, p, 0, rgba1 ); 12994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 13004fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 13014fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (c = 0; c < 4; c++) { 13024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell rgba[c][j] = lerp(levelBlend, rgba0[c][j], rgba1[c][j]); 1303b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 1304b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 1305b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 1306b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian} 1307b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 1308b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 13094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 13104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellmip_filter_nearest(struct tgsi_sampler *tgsi_sampler, 13114fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 13124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 13134fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 13144fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lodbias, 13154fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 13164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 13174fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 13184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct pipe_texture *texture = samp->texture; 13194fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lambda; 13204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 13214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell lambda = samp->compute_lambda(samp, s, t, p, lodbias); 13224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 13234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (lambda < 0.0) { 13244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = 0; 13254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->mag_img_filter( tgsi_sampler, s, t, p, 0, rgba ); 13264fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 13274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 13284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = (int)(lambda + 0.5) ; 13294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = MIN2(samp->level, (int)texture->last_level); 13304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->min_img_filter( tgsi_sampler, s, t, p, 0, rgba ); 13314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 133275276ea316610a5737f2115326482024aa09d02aroot 133375276ea316610a5737f2115326482024aa09d02aroot#if 0 133475276ea316610a5737f2115326482024aa09d02aroot printf("RGBA %g %g %g %g, %g %g %g %g, %g %g %g %g, %g %g %g %g\n", 133575276ea316610a5737f2115326482024aa09d02aroot rgba[0][0], rgba[1][0], rgba[2][0], rgba[3][0], 133675276ea316610a5737f2115326482024aa09d02aroot rgba[0][1], rgba[1][1], rgba[2][1], rgba[3][1], 133775276ea316610a5737f2115326482024aa09d02aroot rgba[0][2], rgba[1][2], rgba[2][2], rgba[3][2], 133875276ea316610a5737f2115326482024aa09d02aroot rgba[0][3], rgba[1][3], rgba[2][3], rgba[3][3]); 133975276ea316610a5737f2115326482024aa09d02aroot#endif 13404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 13414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 13424fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 13434fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 13444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellmip_filter_none(struct tgsi_sampler *tgsi_sampler, 13454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 13464fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 13474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 13484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lodbias, 13494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 13504fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 13514fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 13524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lambda = samp->compute_lambda(samp, s, t, p, lodbias); 13534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 13544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (lambda < 0.0) { 13554fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->mag_img_filter( tgsi_sampler, s, t, p, 0, rgba ); 13564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 13574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 13584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->min_img_filter( tgsi_sampler, s, t, p, 0, rgba ); 13594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 13604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 13614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 13624fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 13634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1364e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul/** 1365e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul * Specialized version of mip_filter_linear with hard-wired calls to 13664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * 2d lambda calculation and 2d_linear_repeat_POT img filters. 1367a34b8594b7b2d00404bb639621ec1ce918ba0786Brian */ 13684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 13694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellmip_filter_linear_2d_linear_repeat_POT( 13704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell struct tgsi_sampler *tgsi_sampler, 13714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 13724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 13734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 13744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lodbias, 13754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 137600c835918259f8d41c3f74eca679a972713b11b2Keith Whitwell{ 13774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 13784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct pipe_texture *texture = samp->texture; 13794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int level0; 13804fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lambda; 138100c835918259f8d41c3f74eca679a972713b11b2Keith Whitwell 13824fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell lambda = compute_lambda_2d(samp, s, t, p, lodbias); 13834fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell level0 = (int)lambda; 13844fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 13854fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* Catches both negative and large values of level0: 13864fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 13874fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if ((unsigned)level0 >= texture->last_level) { 13884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (level0 < 0) 13894fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = 0; 13904fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 13914fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = texture->last_level; 13924fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 13934fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell img_filter_2d_linear_repeat_POT( tgsi_sampler, s, t, p, 0, rgba ); 13944fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 13954fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 13964fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float levelBlend = lambda - level0; 13974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba0[4][4]; 13984fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba1[4][4]; 13994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int c,j; 14004fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 14014fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = level0; 14024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell img_filter_2d_linear_repeat_POT( tgsi_sampler, s, t, p, 0, rgba0 ); 14034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 14044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = level0+1; 14054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell img_filter_2d_linear_repeat_POT( tgsi_sampler, s, t, p, 0, rgba1 ); 14064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 14074fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 14084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (c = 0; c < 4; c++) { 14094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell rgba[c][j] = lerp(levelBlend, rgba0[c][j], rgba1[c][j]); 14104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1411b1ff7dac537947d412bf423a73e7eacd76f90d84Brian Paul } 1412ea0007cc4ca077c7e3951c4fda122bd242728d70Brian Paul } 1413b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian} 1414b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian 1415b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian 14164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1417e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul/** 1418e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul * Do shadow/depth comparisons. 14193d8c05f7320151898dd224c1daaf3118e1f7ea34Brian */ 14204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstatic void 14214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellsample_compare(struct tgsi_sampler *tgsi_sampler, 1422b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian const float s[QUAD_SIZE], 1423b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian const float t[QUAD_SIZE], 14243d8c05f7320151898dd224c1daaf3118e1f7ea34Brian const float p[QUAD_SIZE], 1425f9e331a574cc4eba60e0de5a29a4aed4bb40520cBrian float lodbias, 1426b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian float rgba[NUM_CHANNELS][QUAD_SIZE]) 14273d8c05f7320151898dd224c1daaf3118e1f7ea34Brian{ 14284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 1429aa5db684382bd8662a83ca09ed000e4a5a1013f9Keith Whitwell const struct pipe_sampler_state *sampler = samp->sampler; 14304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell int j, k0, k1, k2, k3; 14314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float val; 14323d8c05f7320151898dd224c1daaf3118e1f7ea34Brian 14334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->mip_filter( tgsi_sampler, s, t, p, lodbias, rgba ); 14343d8c05f7320151898dd224c1daaf3118e1f7ea34Brian 14354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /** 14364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * Compare texcoord 'p' (aka R) against texture value 'rgba[0]' 14374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * When we sampled the depth texture, the depth value was put into all 14384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * RGBA channels. We look at the red channel here. 14394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 1440efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul 1441efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul /* compare four texcoords vs. four texture samples */ 1442efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul switch (sampler->compare_func) { 1443efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_LESS: 1444efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = p[0] < rgba[0][0]; 1445efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k1 = p[1] < rgba[0][1]; 1446efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k2 = p[2] < rgba[0][2]; 1447efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k3 = p[3] < rgba[0][3]; 1448efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1449efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_LEQUAL: 1450efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = p[0] <= rgba[0][0]; 1451efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k1 = p[1] <= rgba[0][1]; 1452efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k2 = p[2] <= rgba[0][2]; 1453efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k3 = p[3] <= rgba[0][3]; 1454efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1455efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_GREATER: 1456efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = p[0] > rgba[0][0]; 1457efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k1 = p[1] > rgba[0][1]; 1458efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k2 = p[2] > rgba[0][2]; 1459efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k3 = p[3] > rgba[0][3]; 1460efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1461efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_GEQUAL: 1462efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = p[0] >= rgba[0][0]; 1463efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k1 = p[1] >= rgba[0][1]; 1464efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k2 = p[2] >= rgba[0][2]; 1465efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k3 = p[3] >= rgba[0][3]; 1466efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1467efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_EQUAL: 1468efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = p[0] == rgba[0][0]; 1469efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k1 = p[1] == rgba[0][1]; 1470efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k2 = p[2] == rgba[0][2]; 1471efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k3 = p[3] == rgba[0][3]; 1472efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1473efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_NOTEQUAL: 1474efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = p[0] != rgba[0][0]; 1475efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k1 = p[1] != rgba[0][1]; 1476efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k2 = p[2] != rgba[0][2]; 1477efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k3 = p[3] != rgba[0][3]; 1478efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1479efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_ALWAYS: 1480efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = k1 = k2 = k3 = 1; 1481efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1482efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul case PIPE_FUNC_NEVER: 1483efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = k1 = k2 = k3 = 0; 1484efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1485efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul default: 1486efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul k0 = k1 = k2 = k3 = 0; 1487efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul assert(0); 1488efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul break; 1489efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul } 1490efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul 1491efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul /* convert four pass/fail values to an intensity in [0,1] */ 1492efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul val = 0.25F * (k0 + k1 + k2 + k3); 1493efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul 1494efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul /* XXX returning result for default GL_DEPTH_TEXTURE_MODE = GL_LUMINANCE */ 1495efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul for (j = 0; j < 4; j++) { 1496efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul rgba[0][j] = rgba[1][j] = rgba[2][j] = val; 1497efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul rgba[3][j] = 1.0F; 1498efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul } 1499efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul} 1500efe9faf0612778db2423a4f8835b318b95d9efd7Brian Paul 1501e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 1502e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul/** 1503e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul * Compute which cube face is referenced by each texcoord and put that 1504e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul * info into the sampler faces[] array. Then sample the cube faces 15050dc4eea64f56cc93e5359372b08b99a2d600273cBrian */ 1506e12810d92ffb3547680b227bf88937c03018112bBrianstatic void 15074fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellsample_cube(struct tgsi_sampler *tgsi_sampler, 15084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float s[QUAD_SIZE], 15094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float t[QUAD_SIZE], 15104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float p[QUAD_SIZE], 15114fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float lodbias, 15124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rgba[NUM_CHANNELS][QUAD_SIZE]) 15130dc4eea64f56cc93e5359372b08b99a2d600273cBrian{ 15144fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler); 15154fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell unsigned j; 15164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float ssss[4], tttt[4]; 151709a1b912605ff48c8782dcc5aae55ac77e27037bBrian 15184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* 15194fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell major axis 15204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell direction target sc tc ma 15214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell ---------- ------------------------------- --- --- --- 15224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell +rx TEXTURE_CUBE_MAP_POSITIVE_X_EXT -rz -ry rx 15234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell -rx TEXTURE_CUBE_MAP_NEGATIVE_X_EXT +rz -ry rx 15244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell +ry TEXTURE_CUBE_MAP_POSITIVE_Y_EXT +rx +rz ry 15254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell -ry TEXTURE_CUBE_MAP_NEGATIVE_Y_EXT +rx -rz ry 15264fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell +rz TEXTURE_CUBE_MAP_POSITIVE_Z_EXT +rx -ry rz 15274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell -rz TEXTURE_CUBE_MAP_NEGATIVE_Z_EXT -rx -ry rz 15284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 15294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell for (j = 0; j < QUAD_SIZE; j++) { 15304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rx = s[j]; 15314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float ry = t[j]; 15324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float rz = p[j]; 15334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const float arx = fabsf(rx), ary = fabsf(ry), arz = fabsf(rz); 15344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell unsigned face; 15354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell float sc, tc, ma; 15364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 1537890679d4322e7ba4f12f32532a3fdd277edff886Keith Whitwell if (arx >= ary && arx >= arz) { 15384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (rx >= 0.0F) { 15394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell face = PIPE_TEX_FACE_POS_X; 15404fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sc = -rz; 15414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell tc = -ry; 15424fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell ma = arx; 15434fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 15444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 15454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell face = PIPE_TEX_FACE_NEG_X; 15464fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sc = rz; 15474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell tc = -ry; 15484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell ma = arx; 15494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 15504fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1551890679d4322e7ba4f12f32532a3fdd277edff886Keith Whitwell else if (ary >= arx && ary >= arz) { 15524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (ry >= 0.0F) { 15534fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell face = PIPE_TEX_FACE_POS_Y; 15544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sc = rx; 15554fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell tc = rz; 15564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell ma = ary; 15574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 15584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 15594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell face = PIPE_TEX_FACE_NEG_Y; 15604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sc = rx; 15614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell tc = -rz; 15624fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell ma = ary; 15634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 15644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 15654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 15664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (rz > 0.0F) { 15674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell face = PIPE_TEX_FACE_POS_Z; 15684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sc = rx; 15694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell tc = -ry; 15704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell ma = arz; 15714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 15724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 15734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell face = PIPE_TEX_FACE_NEG_Z; 15744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sc = -rx; 15754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell tc = -ry; 15764fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell ma = arz; 15774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 15784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1579b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 1580fd19e8adcd82e88d0fc8d187360b528100fed244Keith Whitwell { 1581fd19e8adcd82e88d0fc8d187360b528100fed244Keith Whitwell const float ima = 1.0 / ma; 1582fd19e8adcd82e88d0fc8d187360b528100fed244Keith Whitwell ssss[j] = ( sc * ima + 1.0F ) * 0.5F; 1583fd19e8adcd82e88d0fc8d187360b528100fed244Keith Whitwell tttt[j] = ( tc * ima + 1.0F ) * 0.5F; 1584fd19e8adcd82e88d0fc8d187360b528100fed244Keith Whitwell samp->faces[j] = face; 1585fd19e8adcd82e88d0fc8d187360b528100fed244Keith Whitwell } 15864fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 158709a1b912605ff48c8782dcc5aae55ac77e27037bBrian 15884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* In our little pipeline, the compare stage is next. If compare 15894fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * is not active, this will point somewhere deeper into the 15904fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * pipeline, eg. to mip_filter or even img_filter. 15916142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell */ 15924fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->compare(tgsi_sampler, ssss, tttt, NULL, lodbias, rgba); 15934fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 1594612cfb749c3526eeb446bbc631bf24716522f373Brian 15953d8c05f7320151898dd224c1daaf3118e1f7ea34Brian 15963d8c05f7320151898dd224c1daaf3118e1f7ea34Brian 1597e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulstatic wrap_nearest_func 1598e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulget_nearest_unorm_wrap(unsigned mode) 15994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 16004fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (mode) { 16014fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP: 16024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_unorm_clamp; 16034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_EDGE: 16044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_BORDER: 16054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_unorm_clamp_to_border; 16060dc4eea64f56cc93e5359372b08b99a2d600273cBrian default: 16070dc4eea64f56cc93e5359372b08b99a2d600273cBrian assert(0); 16084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_unorm_clamp; 16090dc4eea64f56cc93e5359372b08b99a2d600273cBrian } 16100dc4eea64f56cc93e5359372b08b99a2d600273cBrian} 161134a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 161234a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 1613e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulstatic wrap_nearest_func 1614e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulget_nearest_wrap(unsigned mode) 1615a34b8594b7b2d00404bb639621ec1ce918ba0786Brian{ 16164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (mode) { 16174fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_REPEAT: 16184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_repeat; 16194fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP: 16204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_clamp; 16214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_EDGE: 16224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_clamp_to_edge; 16234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_BORDER: 16244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_clamp_to_border; 16254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_REPEAT: 16264fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_mirror_repeat; 16274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_CLAMP: 16284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_mirror_clamp; 16294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE: 16304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_mirror_clamp_to_edge; 16314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER: 16324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_mirror_clamp_to_border; 16334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell default: 16344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(0); 16354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_nearest_repeat; 16364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1637a34b8594b7b2d00404bb639621ec1ce918ba0786Brian} 1638a34b8594b7b2d00404bb639621ec1ce918ba0786Brian 1639e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 1640e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulstatic wrap_linear_func 1641e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulget_linear_unorm_wrap(unsigned mode) 1642a34b8594b7b2d00404bb639621ec1ce918ba0786Brian{ 16434fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (mode) { 16444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP: 16454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_unorm_clamp; 16464fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_EDGE: 16474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_BORDER: 16484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_unorm_clamp_to_border; 16494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell default: 16504fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(0); 16514fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_unorm_clamp; 16524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 1653a34b8594b7b2d00404bb639621ec1ce918ba0786Brian} 1654a34b8594b7b2d00404bb639621ec1ce918ba0786Brian 1655e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 1656e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulstatic wrap_linear_func 1657e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulget_linear_wrap(unsigned mode) 165834a48abd5ff82ce9748fc29191e35a0985d47c5fBrian{ 16594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (mode) { 16604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_REPEAT: 16614fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_repeat; 16624fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP: 16634fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_clamp; 16644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_EDGE: 16654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_clamp_to_edge; 16664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP_TO_BORDER: 16674fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_clamp_to_border; 16684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_REPEAT: 16694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_mirror_repeat; 16704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_CLAMP: 16714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_mirror_clamp; 16724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE: 16734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_mirror_clamp_to_edge; 16744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER: 16754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_mirror_clamp_to_border; 16763d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian default: 16773d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian assert(0); 16784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return wrap_linear_repeat; 16793d6f9d904f07b7676cc971eb3faf9dd8e7c58e50Brian } 168034a48abd5ff82ce9748fc29191e35a0985d47c5fBrian} 168134a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 1682e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 1683e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulstatic compute_lambda_func 1684e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulget_lambda_func(const union sp_sampler_key key) 168534a48abd5ff82ce9748fc29191e35a0985d47c5fBrian{ 16864fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (key.bits.processor == TGSI_PROCESSOR_VERTEX) 16874fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return compute_lambda_vert; 16884fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 16894fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (key.bits.target) { 16904fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEXTURE_1D: 16914fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return compute_lambda_1d; 16924fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEXTURE_2D: 169387ec83afd58536c31bf02c307f1d5488abc84861Brian Paul case PIPE_TEXTURE_CUBE: 16944fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return compute_lambda_2d; 16954fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEXTURE_3D: 16964fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return compute_lambda_3d; 16974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell default: 16984fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell assert(0); 16994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return compute_lambda_1d; 1700b4480285ed5098f1c862690ee105dd46f5e6cd1eBrian } 170134a48abd5ff82ce9748fc29191e35a0985d47c5fBrian} 170234a48abd5ff82ce9748fc29191e35a0985d47c5fBrian 1703e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul 1704e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulstatic filter_func 1705e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paulget_img_filter(const union sp_sampler_key key, 1706e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul unsigned filter, 1707e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul const struct pipe_sampler_state *sampler) 1708b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian{ 17094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (key.bits.target) { 17104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEXTURE_1D: 17114fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (filter == PIPE_TEX_FILTER_NEAREST) 17124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_1d_nearest; 17134fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 17144fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_1d_linear; 1715b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian break; 17164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEXTURE_2D: 17174fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* Try for fast path: 17184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 17194fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (key.bits.is_pot && 17204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sampler->wrap_s == sampler->wrap_t && 17214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sampler->normalized_coords) 172238bee46e83b18ff4ad42d340b507b1a15b4326c7Brian { 17234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (sampler->wrap_s) { 17244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_REPEAT: 17254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (filter) { 17266142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell case PIPE_TEX_FILTER_NEAREST: 17274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_2d_nearest_repeat_POT; 17286142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell case PIPE_TEX_FILTER_LINEAR: 17294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_2d_linear_repeat_POT; 17306142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell default: 17316142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell break; 173238bee46e83b18ff4ad42d340b507b1a15b4326c7Brian } 17334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell break; 17344fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_WRAP_CLAMP: 17354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (filter) { 17366142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell case PIPE_TEX_FILTER_NEAREST: 17374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_2d_nearest_clamp_POT; 17386142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell default: 17396142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell break; 174038bee46e83b18ff4ad42d340b507b1a15b4326c7Brian } 1741b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 1742b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 174360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell /* Otherwise use default versions: 17444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 17454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (filter == PIPE_TEX_FILTER_NEAREST) 17464fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_2d_nearest; 17474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 17484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_2d_linear; 17494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell break; 175060adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell case PIPE_TEXTURE_CUBE: 175160adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell if (filter == PIPE_TEX_FILTER_NEAREST) 175260adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell return img_filter_cube_nearest; 175360adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell else 175460adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell return img_filter_cube_linear; 175560adc15ba5633190fc8a68e7c182f06dc7909df4Keith Whitwell break; 17564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEXTURE_3D: 17574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (filter == PIPE_TEX_FILTER_NEAREST) 17584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_3d_nearest; 17594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 17604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_3d_linear; 1761b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian break; 1762b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian default: 1763b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian assert(0); 17644fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return img_filter_1d_nearest; 1765b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian } 1766b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian} 1767b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 1768b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian 1769a34b8594b7b2d00404bb639621ec1ce918ba0786Brian/** 1770a29447c33d44b3427e0c40a761067c0cc6e71c39Brian Paul * Bind the given texture object and texture cache to the sampler varient. 1771a34b8594b7b2d00404bb639621ec1ce918ba0786Brian */ 17724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellvoid 17734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellsp_sampler_varient_bind_texture( struct sp_sampler_varient *samp, 17747670102468a55de50cf0cfa0b938d36aaf212f1fKeith Whitwell struct softpipe_tex_tile_cache *tex_cache, 17754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct pipe_texture *texture ) 177634a48abd5ff82ce9748fc29191e35a0985d47c5fBrian{ 17774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const struct pipe_sampler_state *sampler = samp->sampler; 17784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 17794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->texture = texture; 17804fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->cache = tex_cache; 17814fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->xpot = util_unsigned_logbase2( texture->width[0] ); 17824fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->ypot = util_unsigned_logbase2( texture->height[0] ); 17834fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->level = CLAMP((int) sampler->min_lod, 0, (int) texture->last_level); 17844fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell} 17850b9e96fae9493d5d58f046e01c983a3c4267090eBrian 17864f23468bd0d14b8ed687a641003d587b91ad39a7Brian 1787ecfa8be150ed276af816467b467e76e026f5b541Keith Whitwellvoid 1788ecfa8be150ed276af816467b467e76e026f5b541Keith Whitwellsp_sampler_varient_destroy( struct sp_sampler_varient *samp ) 1789ecfa8be150ed276af816467b467e76e026f5b541Keith Whitwell{ 1790ecfa8be150ed276af816467b467e76e026f5b541Keith Whitwell FREE(samp); 1791ecfa8be150ed276af816467b467e76e026f5b541Keith Whitwell} 1792ecfa8be150ed276af816467b467e76e026f5b541Keith Whitwell 1793ecfa8be150ed276af816467b467e76e026f5b541Keith Whitwell 1794e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul/** 1795e2329f2795d48d11131e9ac105e7aa3fd2c229c1Brian Paul * Create a sampler varient for a given set of non-orthogonal state. 17964fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 17974fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellstruct sp_sampler_varient * 17984fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwellsp_create_sampler_varient( const struct pipe_sampler_state *sampler, 17994fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell const union sp_sampler_key key ) 18004fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell{ 18014fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell struct sp_sampler_varient *samp = CALLOC_STRUCT(sp_sampler_varient); 18024fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (!samp) 18034fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return NULL; 18044fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 18054fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->sampler = sampler; 18064fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->key = key; 18074fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 18084fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* Note that (for instance) linear_texcoord_s and 18094fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * nearest_texcoord_s may be active at the same time, if the 18104fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * sampler min_img_filter differs from its mag_img_filter. 18114fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 18124fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (sampler->normalized_coords) { 18134fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_s = get_linear_wrap( sampler->wrap_s ); 18144fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_t = get_linear_wrap( sampler->wrap_t ); 18154fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_p = get_linear_wrap( sampler->wrap_r ); 18164fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 18174fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_s = get_nearest_wrap( sampler->wrap_s ); 18184fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_t = get_nearest_wrap( sampler->wrap_t ); 18194fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_p = get_nearest_wrap( sampler->wrap_r ); 18204fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 18214fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 18224fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_s = get_linear_unorm_wrap( sampler->wrap_s ); 18234fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_t = get_linear_unorm_wrap( sampler->wrap_t ); 18244fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->linear_texcoord_p = get_linear_unorm_wrap( sampler->wrap_r ); 18254fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 18264fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_s = get_nearest_unorm_wrap( sampler->wrap_s ); 18274fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_t = get_nearest_unorm_wrap( sampler->wrap_t ); 18284fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->nearest_texcoord_p = get_nearest_unorm_wrap( sampler->wrap_r ); 18294fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 18304fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 18314fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->compute_lambda = get_lambda_func( key ); 18324fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 18334fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->min_img_filter = get_img_filter(key, sampler->min_img_filter, sampler); 183441483627f0fd3dc9df2cc55dfd5f3e5987fcfd22Brian Paul samp->mag_img_filter = get_img_filter(key, sampler->mag_img_filter, sampler); 18354fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 18364fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell switch (sampler->min_mip_filter) { 18374fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_MIPFILTER_NONE: 18384fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (sampler->min_img_filter == sampler->mag_img_filter) 18394fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->mip_filter = samp->min_img_filter; 1840b1c8fa5b6002296d9abe21c06d5cb81a3f70828aBrian else 18414fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->mip_filter = mip_filter_none; 184234a48abd5ff82ce9748fc29191e35a0985d47c5fBrian break; 18434fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 18444fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_MIPFILTER_NEAREST: 18454fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->mip_filter = mip_filter_nearest; 184634a48abd5ff82ce9748fc29191e35a0985d47c5fBrian break; 18474fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 18484fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell case PIPE_TEX_MIPFILTER_LINEAR: 18494fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (key.bits.is_pot && 18504fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sampler->min_img_filter == sampler->mag_img_filter && 18514fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sampler->normalized_coords && 18524fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sampler->wrap_s == PIPE_TEX_WRAP_REPEAT && 1853cf102b031e7ef33c8e3ffce2f9dcd064f44e8190Brian Paul sampler->wrap_t == PIPE_TEX_WRAP_REPEAT && 18544fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell sampler->min_img_filter == PIPE_TEX_FILTER_LINEAR) 18554fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell { 18564fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->mip_filter = mip_filter_linear_2d_linear_repeat_POT; 18574fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 18584fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else 18594fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell { 18604fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->mip_filter = mip_filter_linear; 18616142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 186234a48abd5ff82ce9748fc29191e35a0985d47c5fBrian break; 186334a48abd5ff82ce9748fc29191e35a0985d47c5fBrian } 18643d53d38d5e35386de4793162b9dd32e171927059Brian Paul 18654fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (sampler->compare_mode != FALSE) { 18664fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->compare = sample_compare; 18673d53d38d5e35386de4793162b9dd32e171927059Brian Paul } 18684fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 18694fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* Skip compare operation by promoting the mip_filter function 18704fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * pointer: 18714fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 18724fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->compare = samp->mip_filter; 18734fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 18744fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 18754fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell if (key.bits.target == PIPE_TEXTURE_CUBE) { 18764fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->base.get_samples = sample_cube; 18774fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell } 18784fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell else { 18794fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->faces[0] = 0; 18804fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->faces[1] = 0; 18814fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->faces[2] = 0; 18824fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->faces[3] = 0; 18834fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell 18844fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell /* Skip cube face determination by promoting the compare 18854fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell * function pointer: 18864fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell */ 18874fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell samp->base.get_samples = samp->compare; 18886142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell } 18896142de393fe34ff0866f8489f1292eb473276f11Keith Whitwell 18904fc7d0345a18042a79686940fb7cc4e698cc9192Keith Whitwell return samp; 189134a48abd5ff82ce9748fc29191e35a0985d47c5fBrian} 1892