brw_wm_sampler_state.c revision e304c65a2b9c1005d6216e91d90a99001549a63d
19f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt/* 29f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt Copyright (C) Intel Corp. 2006. All Rights Reserved. 39f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to 49f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt develop this 3D driver. 59f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 69f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt Permission is hereby granted, free of charge, to any person obtaining 79f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt a copy of this software and associated documentation files (the 89f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt "Software"), to deal in the Software without restriction, including 99f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt without limitation the rights to use, copy, modify, merge, publish, 109f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt distribute, sublicense, and/or sell copies of the Software, and to 119f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt permit persons to whom the Software is furnished to do so, subject to 129f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt the following conditions: 139f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 149f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt The above copyright notice and this permission notice (including the 159f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt next paragraph) shall be included in all copies or substantial 169f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt portions of the Software. 179f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 189f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 199f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 209f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 219f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 229f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 239f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 249f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 259f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 269f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt **********************************************************************/ 279f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* 289f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * Authors: 299f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * Keith Whitwell <keith@tungstengraphics.com> 309f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 319f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 329f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 339f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt#include "brw_context.h" 349f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt#include "brw_state.h" 359f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt#include "brw_defines.h" 369f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 37ecadb51bbcb972a79f3ed79e65a7986b9396e757Brian Paul#include "main/macros.h" 389f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 399f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 409f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 419f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt/* Samplers aren't strictly wm state from the hardware's perspective, 429f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * but that is the only situation in which we use them in this driver. 439f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 449f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 459f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 469f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 479f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt/* The brw (and related graphics cores) do not support GL_CLAMP. The 489f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * Intel drivers for "other operating systems" implement GL_CLAMP as 499f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * GL_CLAMP_TO_EDGE, so the same is done here. 509f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 519f344b3e7d6e23674dd4747faec253f103563b36Eric Anholtstatic GLuint translate_wrap_mode( GLenum wrap ) 529f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt{ 539f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt switch( wrap ) { 549f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_REPEAT: 559f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt return BRW_TEXCOORDMODE_WRAP; 569f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_CLAMP: 57ab999608582534bb5187a786b2ea437167f2d8a4Xiang, Haihao return BRW_TEXCOORDMODE_CLAMP; 589f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_CLAMP_TO_EDGE: 599f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt return BRW_TEXCOORDMODE_CLAMP; /* conform likes it this way */ 609f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_CLAMP_TO_BORDER: 619f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt return BRW_TEXCOORDMODE_CLAMP_BORDER; 629f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_MIRRORED_REPEAT: 639f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt return BRW_TEXCOORDMODE_MIRROR; 649f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt default: 659f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt return BRW_TEXCOORDMODE_WRAP; 669f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 679f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt} 689f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 699f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 709f344b3e7d6e23674dd4747faec253f103563b36Eric Anholtstatic GLuint U_FIXED(GLfloat value, GLuint frac_bits) 719f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt{ 729f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt value *= (1<<frac_bits); 739f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt return value < 0 ? 0 : value; 749f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt} 759f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 769f344b3e7d6e23674dd4747faec253f103563b36Eric Anholtstatic GLint S_FIXED(GLfloat value, GLuint frac_bits) 779f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt{ 789f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt return value * (1<<frac_bits); 799f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt} 809f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 819f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 8238bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholtstatic dri_bo *upload_default_color( struct brw_context *brw, 8338bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholt const GLfloat *color ) 849f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt{ 859f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt struct brw_sampler_default_color sdc; 869f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 879f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt COPY_4V(sdc.color, color); 889f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 8938bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholt return brw_cache_data( &brw->cache, BRW_SAMPLER_DEFAULT_COLOR, &sdc, 9038bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholt NULL, 0 ); 919f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt} 929f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 939f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 943e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholtstruct wm_sampler_key { 953e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt int sampler_count; 963e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 973e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt struct wm_sampler_entry { 986f915b10d5963466567ea5445631192fd9c4e802Brian Paul GLenum tex_target; 993e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt GLenum wrap_r, wrap_s, wrap_t; 1003e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt float maxlod, minlod; 1013e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt float lod_bias; 1023e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt float max_aniso; 1033e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt GLenum minfilter, magfilter; 1047086df58688dc375ffd4c0fb9a9884eae05a6e46Xiang, Haihao GLenum comparemode, comparefunc; 1053e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt dri_bo *sdc_bo; 106e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick 107e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick /** If target is cubemap, take context setting. 108e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick */ 109e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick GLboolean seamless_cube_map; 1103e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt } sampler[BRW_MAX_TEX_UNIT]; 1113e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt}; 1123e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 1133e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt/** 1143e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt * Sets the sampler state for a single unit based off of the sampler key 1153e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt * entry. 1169f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 1173e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholtstatic void brw_update_sampler_state(struct wm_sampler_entry *key, 1183e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt dri_bo *sdc_bo, 1193e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt struct brw_sampler_state *sampler) 1203e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt{ 1219f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt _mesa_memset(sampler, 0, sizeof(*sampler)); 1229f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1233e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt switch (key->minfilter) { 1249f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_NEAREST: 1259f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.min_filter = BRW_MAPFILTER_NEAREST; 1269f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mip_filter = BRW_MIPFILTER_NONE; 1279f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1289f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_LINEAR: 1299f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.min_filter = BRW_MAPFILTER_LINEAR; 1309f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mip_filter = BRW_MIPFILTER_NONE; 1319f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1329f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_NEAREST_MIPMAP_NEAREST: 1339f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.min_filter = BRW_MAPFILTER_NEAREST; 1349f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mip_filter = BRW_MIPFILTER_NEAREST; 1359f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1369f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_LINEAR_MIPMAP_NEAREST: 1379f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.min_filter = BRW_MAPFILTER_LINEAR; 1389f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mip_filter = BRW_MIPFILTER_NEAREST; 1399f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1409f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_NEAREST_MIPMAP_LINEAR: 1419f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.min_filter = BRW_MAPFILTER_NEAREST; 1429f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mip_filter = BRW_MIPFILTER_LINEAR; 1439f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1449f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_LINEAR_MIPMAP_LINEAR: 1459f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.min_filter = BRW_MAPFILTER_LINEAR; 1469f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mip_filter = BRW_MIPFILTER_LINEAR; 1479f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1489f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt default: 1499f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1509f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 1519f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1529f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Set Anisotropy: 1539f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 1543e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt if (key->max_aniso > 1.0) { 1559f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.min_filter = BRW_MAPFILTER_ANISOTROPIC; 1569f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mag_filter = BRW_MAPFILTER_ANISOTROPIC; 1579f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1583e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt if (key->max_aniso > 2.0) { 15950853be894aa3edd1e9271f7d625f319209e340fRoland Scheidegger sampler->ss3.max_aniso = MIN2((key->max_aniso - 2) / 2, 1609f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt BRW_ANISORATIO_16); 1619f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 1629f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 1639f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt else { 1643e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt switch (key->magfilter) { 1659f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_NEAREST: 1669f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mag_filter = BRW_MAPFILTER_NEAREST; 1679f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1689f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_LINEAR: 1699f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mag_filter = BRW_MAPFILTER_LINEAR; 1709f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1719f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt default: 1729f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1739f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 1749f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 1759f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 176e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick sampler->ss1.r_wrap_mode = translate_wrap_mode(key->wrap_r); 177e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick sampler->ss1.s_wrap_mode = translate_wrap_mode(key->wrap_s); 178e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick sampler->ss1.t_wrap_mode = translate_wrap_mode(key->wrap_t); 179e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick 180e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick /* Cube-maps on 965 and later must use the same wrap mode for all 3 181e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick * coordinate dimensions. Futher, only CUBE and CLAMP are valid. 182e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick */ 183e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick if (key->tex_target == GL_TEXTURE_CUBE_MAP) { 184e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick if (key->seamless_cube_map && 185e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick (key->minfilter != GL_NEAREST || key->magfilter != GL_NEAREST)) { 186e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick sampler->ss1.r_wrap_mode = BRW_TEXCOORDMODE_CUBE; 187e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick sampler->ss1.s_wrap_mode = BRW_TEXCOORDMODE_CUBE; 188e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick sampler->ss1.t_wrap_mode = BRW_TEXCOORDMODE_CUBE; 189e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick } else { 190e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick sampler->ss1.r_wrap_mode = BRW_TEXCOORDMODE_CLAMP; 191e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick sampler->ss1.s_wrap_mode = BRW_TEXCOORDMODE_CLAMP; 192e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick sampler->ss1.t_wrap_mode = BRW_TEXCOORDMODE_CLAMP; 193e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick } 194e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick } else if (key->tex_target == GL_TEXTURE_1D) { 195ab6c4fa582972e25f8800c77b5dd5b3a83afc996Robert Ellison /* There's a bug in 1D texture sampling - it actually pays 196ab6c4fa582972e25f8800c77b5dd5b3a83afc996Robert Ellison * attention to the wrap_t value, though it should not. 197ab6c4fa582972e25f8800c77b5dd5b3a83afc996Robert Ellison * Override the wrap_t value here to GL_REPEAT to keep 198ab6c4fa582972e25f8800c77b5dd5b3a83afc996Robert Ellison * any nonexistent border pixels from floating in. 199ab6c4fa582972e25f8800c77b5dd5b3a83afc996Robert Ellison */ 200ab6c4fa582972e25f8800c77b5dd5b3a83afc996Robert Ellison sampler->ss1.t_wrap_mode = BRW_TEXCOORDMODE_WRAP; 201ab6c4fa582972e25f8800c77b5dd5b3a83afc996Robert Ellison } 202e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick 2039f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2049f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Set shadow function: 2059f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 2063e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt if (key->comparemode == GL_COMPARE_R_TO_TEXTURE_ARB) { 2079f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Shadowing is "enabled" by emitting a particular sampler 2089f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * message (sample_c). So need to recompile WM program when 2099f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * shadow comparison is enabled on each/any texture unit. 2109f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 2113e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt sampler->ss0.shadow_function = 2127086df58688dc375ffd4c0fb9a9884eae05a6e46Xiang, Haihao intel_translate_shadow_compare_func(key->comparefunc); 2139f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 2149f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2159f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Set LOD bias: 2169f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 2173e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt sampler->ss0.lod_bias = S_FIXED(CLAMP(key->lod_bias, -16, 15), 6); 2189f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2199f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.lod_preclamp = 1; /* OpenGL mode */ 2209f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.default_color_mode = 0; /* OpenGL/DX10 mode */ 2219f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2229f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Set BaseMipLevel, MaxLOD, MinLOD: 2239f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * 2249f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * XXX: I don't think that using firstLevel, lastLevel works, 2259f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * because we always setup the surface state as if firstLevel == 2269f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * level zero. Probably have to subtract firstLevel from each of 2279f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * these: 2289f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 2299f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.base_level = U_FIXED(0, 1); 2309f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2313e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt sampler->ss1.max_lod = U_FIXED(MIN2(MAX2(key->maxlod, 0), 13), 6); 2323e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt sampler->ss1.min_lod = U_FIXED(MIN2(MAX2(key->minlod, 0), 13), 6); 2339f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 23438bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholt sampler->ss2.default_color_pointer = sdc_bo->offset >> 5; /* reloc */ 2359f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt} 2369f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2378c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul 2383e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt/** Sets up the cache key for sampler state for all texture units */ 2393e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholtstatic void 2403e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholtbrw_wm_sampler_populate_key(struct brw_context *brw, 2413e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt struct wm_sampler_key *key) 2429f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt{ 243052c1d66a1ab1f2665870dc77dab28d20416cdf1Eric Anholt GLcontext *ctx = &brw->intel.ctx; 2443e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt int unit; 2453e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 2463e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt memset(key, 0, sizeof(*key)); 2479f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2489f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt for (unit = 0; unit < BRW_MAX_TEX_UNIT; unit++) { 249052c1d66a1ab1f2665870dc77dab28d20416cdf1Eric Anholt if (ctx->Texture.Unit[unit]._ReallyEnabled) { 2503e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt struct wm_sampler_entry *entry = &key->sampler[unit]; 251052c1d66a1ab1f2665870dc77dab28d20416cdf1Eric Anholt struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; 2529f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt struct gl_texture_object *texObj = texUnit->_Current; 2537216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt struct intel_texture_object *intelObj = intel_texture_object(texObj); 2547216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt struct gl_texture_image *firstImage = 2557216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt texObj->Image[0][intelObj->firstLevel]; 2566f915b10d5963466567ea5445631192fd9c4e802Brian Paul 2576f915b10d5963466567ea5445631192fd9c4e802Brian Paul entry->tex_target = texObj->Target; 258e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick 259e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick entry->seamless_cube_map = (texObj->Target == GL_TEXTURE_CUBE_MAP) 260e304c65a2b9c1005d6216e91d90a99001549a63dIan Romanick ? ctx->Texture.CubeMapSeamless : GL_FALSE; 2619f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2623e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->wrap_r = texObj->WrapR; 2633e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->wrap_s = texObj->WrapS; 2643e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->wrap_t = texObj->WrapT; 2659f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2663e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->maxlod = texObj->MaxLod; 2673e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->minlod = texObj->MinLod; 2683e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->lod_bias = texUnit->LodBias + texObj->LodBias; 2693e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->max_aniso = texObj->MaxAnisotropy; 2703e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->minfilter = texObj->MinFilter; 2713e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->magfilter = texObj->MagFilter; 2723e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->comparemode = texObj->CompareMode; 2731b3e3e6b841535b78ff4fa1d3861e9d8cdeff972Brian Paul entry->comparefunc = texObj->CompareFunc; 2749f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 27538bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholt dri_bo_unreference(brw->wm.sdc_bo[unit]); 2767216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt if (firstImage->_BaseFormat == GL_DEPTH_COMPONENT) { 2777216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt float bordercolor[4] = { 2787216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt texObj->BorderColor[0], 2797216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt texObj->BorderColor[0], 2807216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt texObj->BorderColor[0], 2817216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt texObj->BorderColor[0] 2827216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt }; 2837216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt /* GL specs that border color for depth textures is taken from the 2847216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt * R channel, while the hardware uses A. Spam R into all the 2857216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt * channels for safety. 2867216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt */ 2877216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt brw->wm.sdc_bo[unit] = upload_default_color(brw, bordercolor); 2887216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt } else { 2897216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt brw->wm.sdc_bo[unit] = upload_default_color(brw, 2907216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt texObj->BorderColor); 2917216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt } 2923e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt key->sampler_count = unit + 1; 2939f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 2949f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 2953e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt} 2963e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 2973e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt/* All samplers must be uploaded in a single contiguous array, which 2983e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt * complicates various things. However, this is still too confusing - 2993e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt * FIXME: simplify all the different new texture state flags. 3003e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt */ 301f75843a517bd188639e6866db2a7b04de3524e16Dave Airliestatic void upload_wm_samplers( struct brw_context *brw ) 3023e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt{ 303052c1d66a1ab1f2665870dc77dab28d20416cdf1Eric Anholt GLcontext *ctx = &brw->intel.ctx; 3043e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt struct wm_sampler_key key; 3053e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt int i; 3063e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 3073e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw_wm_sampler_populate_key(brw, &key); 3083e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 3093e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt if (brw->wm.sampler_count != key.sampler_count) { 3103e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw->wm.sampler_count = key.sampler_count; 3119f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt brw->state.dirty.cache |= CACHE_NEW_SAMPLER; 3129f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 3139f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 31438bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholt dri_bo_unreference(brw->wm.sampler_bo); 3153e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw->wm.sampler_bo = NULL; 3163e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt if (brw->wm.sampler_count == 0) 317f75843a517bd188639e6866db2a7b04de3524e16Dave Airlie return; 3183e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 3193e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw->wm.sampler_bo = brw_search_cache(&brw->cache, BRW_SAMPLER, 3203e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt &key, sizeof(key), 3213e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw->wm.sdc_bo, key.sampler_count, 3223e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt NULL); 3233e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 3243e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt /* If we didnt find it in the cache, compute the state and put it in the 3253e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt * cache. 3263e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt */ 3273e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt if (brw->wm.sampler_bo == NULL) { 3283e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt struct brw_sampler_state sampler[BRW_MAX_TEX_UNIT]; 3293e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 3303e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt memset(sampler, 0, sizeof(sampler)); 3313e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt for (i = 0; i < key.sampler_count; i++) { 3323e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt if (brw->wm.sdc_bo[i] == NULL) 3333e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt continue; 3343e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 3353e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw_update_sampler_state(&key.sampler[i], brw->wm.sdc_bo[i], 3363e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt &sampler[i]); 3373e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt } 3383e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 3393e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw->wm.sampler_bo = brw_upload_cache(&brw->cache, BRW_SAMPLER, 3403e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt &key, sizeof(key), 3413e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw->wm.sdc_bo, key.sampler_count, 3423e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt &sampler, sizeof(sampler), 3433e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt NULL, NULL); 3449f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 3458abffada70fcd62e3c2dcbcdc6d00d258805326bEric Anholt /* Emit SDC relocations */ 3468abffada70fcd62e3c2dcbcdc6d00d258805326bEric Anholt for (i = 0; i < BRW_MAX_TEX_UNIT; i++) { 347052c1d66a1ab1f2665870dc77dab28d20416cdf1Eric Anholt if (!ctx->Texture.Unit[i]._ReallyEnabled) 3488abffada70fcd62e3c2dcbcdc6d00d258805326bEric Anholt continue; 34938bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholt 3503628185f566e178a12b493fb89abf52b4b281f99Eric Anholt dri_bo_emit_reloc(brw->wm.sampler_bo, 35117fdd1ab3b48da8dff742e626c3c59bc89cafeedEric Anholt I915_GEM_DOMAIN_SAMPLER, 0, 3523628185f566e178a12b493fb89abf52b4b281f99Eric Anholt 0, 3533628185f566e178a12b493fb89abf52b4b281f99Eric Anholt i * sizeof(struct brw_sampler_state) + 3543628185f566e178a12b493fb89abf52b4b281f99Eric Anholt offsetof(struct brw_sampler_state, ss2), 3553628185f566e178a12b493fb89abf52b4b281f99Eric Anholt brw->wm.sdc_bo[i]); 3568abffada70fcd62e3c2dcbcdc6d00d258805326bEric Anholt } 35738bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholt } 35838bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholt} 3599f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 3609f344b3e7d6e23674dd4747faec253f103563b36Eric Anholtconst struct brw_tracked_state brw_wm_samplers = { 3619f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt .dirty = { 3629f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt .mesa = _NEW_TEXTURE, 3639f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt .brw = 0, 3649f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt .cache = 0 3659f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt }, 366008653ac55776d6b1c6d1627ad20937aa1c4dbdaDave Airlie .prepare = upload_wm_samplers, 3679f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt}; 3689f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 3699f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 370