brw_wm_sampler_state.c revision 8c093a1fb0843e152d2a515c5127ccd5999b0d94
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; 1063e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt } sampler[BRW_MAX_TEX_UNIT]; 1073e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt}; 1083e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 1093e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt/** 1103e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt * Sets the sampler state for a single unit based off of the sampler key 1113e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt * entry. 1129f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 1133e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholtstatic void brw_update_sampler_state(struct wm_sampler_entry *key, 1143e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt dri_bo *sdc_bo, 1153e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt struct brw_sampler_state *sampler) 1163e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt{ 1179f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt _mesa_memset(sampler, 0, sizeof(*sampler)); 1189f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1193e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt switch (key->minfilter) { 1209f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_NEAREST: 1219f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.min_filter = BRW_MAPFILTER_NEAREST; 1229f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mip_filter = BRW_MIPFILTER_NONE; 1239f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1249f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_LINEAR: 1259f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.min_filter = BRW_MAPFILTER_LINEAR; 1269f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mip_filter = BRW_MIPFILTER_NONE; 1279f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1289f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_NEAREST_MIPMAP_NEAREST: 1299f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.min_filter = BRW_MAPFILTER_NEAREST; 1309f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mip_filter = BRW_MIPFILTER_NEAREST; 1319f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1329f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_LINEAR_MIPMAP_NEAREST: 1339f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.min_filter = BRW_MAPFILTER_LINEAR; 1349f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mip_filter = BRW_MIPFILTER_NEAREST; 1359f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1369f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_NEAREST_MIPMAP_LINEAR: 1379f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.min_filter = BRW_MAPFILTER_NEAREST; 1389f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mip_filter = BRW_MIPFILTER_LINEAR; 1399f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1409f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_LINEAR_MIPMAP_LINEAR: 1419f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.min_filter = BRW_MAPFILTER_LINEAR; 1429f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mip_filter = BRW_MIPFILTER_LINEAR; 1439f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1449f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt default: 1459f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1469f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 1479f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1489f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Set Anisotropy: 1499f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 1503e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt if (key->max_aniso > 1.0) { 1519f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.min_filter = BRW_MAPFILTER_ANISOTROPIC; 1529f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mag_filter = BRW_MAPFILTER_ANISOTROPIC; 1539f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1543e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt if (key->max_aniso > 2.0) { 1553e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt sampler->ss3.max_aniso = MAX2((key->max_aniso - 2) / 2, 1569f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt BRW_ANISORATIO_16); 1579f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 1589f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 1599f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt else { 1603e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt switch (key->magfilter) { 1619f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_NEAREST: 1629f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mag_filter = BRW_MAPFILTER_NEAREST; 1639f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1649f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt case GL_LINEAR: 1659f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.mag_filter = BRW_MAPFILTER_LINEAR; 1669f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1679f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt default: 1689f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt break; 1699f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 1709f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 1719f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1726f915b10d5963466567ea5445631192fd9c4e802Brian Paul if (key->tex_target == GL_TEXTURE_CUBE_MAP && 1736f915b10d5963466567ea5445631192fd9c4e802Brian Paul (key->minfilter != GL_NEAREST || key->magfilter != GL_NEAREST)) { 1746f915b10d5963466567ea5445631192fd9c4e802Brian Paul /* If we're using anything but nearest sampling for a cube map, we 1756f915b10d5963466567ea5445631192fd9c4e802Brian Paul * need to set this wrap mode to avoid GPU lock-ups. 1766f915b10d5963466567ea5445631192fd9c4e802Brian Paul */ 1779f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss1.r_wrap_mode = BRW_TEXCOORDMODE_CUBE; 1789f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss1.s_wrap_mode = BRW_TEXCOORDMODE_CUBE; 1799f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss1.t_wrap_mode = BRW_TEXCOORDMODE_CUBE; 1809f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 1816f915b10d5963466567ea5445631192fd9c4e802Brian Paul else { 1826f915b10d5963466567ea5445631192fd9c4e802Brian Paul sampler->ss1.r_wrap_mode = translate_wrap_mode(key->wrap_r); 1836f915b10d5963466567ea5445631192fd9c4e802Brian Paul sampler->ss1.s_wrap_mode = translate_wrap_mode(key->wrap_s); 1846f915b10d5963466567ea5445631192fd9c4e802Brian Paul sampler->ss1.t_wrap_mode = translate_wrap_mode(key->wrap_t); 1856f915b10d5963466567ea5445631192fd9c4e802Brian Paul } 1869f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1879f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Set shadow function: 1889f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 1893e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt if (key->comparemode == GL_COMPARE_R_TO_TEXTURE_ARB) { 1909f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Shadowing is "enabled" by emitting a particular sampler 1919f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * message (sample_c). So need to recompile WM program when 1929f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * shadow comparison is enabled on each/any texture unit. 1939f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 1943e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt sampler->ss0.shadow_function = 1957086df58688dc375ffd4c0fb9a9884eae05a6e46Xiang, Haihao intel_translate_shadow_compare_func(key->comparefunc); 1969f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 1979f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 1989f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Set LOD bias: 1999f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 2003e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt sampler->ss0.lod_bias = S_FIXED(CLAMP(key->lod_bias, -16, 15), 6); 2019f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2029f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.lod_preclamp = 1; /* OpenGL mode */ 2039f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.default_color_mode = 0; /* OpenGL/DX10 mode */ 2049f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2059f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt /* Set BaseMipLevel, MaxLOD, MinLOD: 2069f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * 2079f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * XXX: I don't think that using firstLevel, lastLevel works, 2089f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * because we always setup the surface state as if firstLevel == 2099f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * level zero. Probably have to subtract firstLevel from each of 2109f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt * these: 2119f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt */ 2129f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt sampler->ss0.base_level = U_FIXED(0, 1); 2139f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2143e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt sampler->ss1.max_lod = U_FIXED(MIN2(MAX2(key->maxlod, 0), 13), 6); 2153e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt sampler->ss1.min_lod = U_FIXED(MIN2(MAX2(key->minlod, 0), 13), 6); 2169f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 21738bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholt sampler->ss2.default_color_pointer = sdc_bo->offset >> 5; /* reloc */ 2189f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt} 2199f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2208c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul 2218c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul#if 0 2228c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul/** 2238c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul * Setup the sampler state for the "constant buffer texture". 2248c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul * The constant buffer texture is basically a 1D float[4] texture whose 2258c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul * width == the number of program parameters/constants. 2268c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul */ 2278c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paulstatic void 2288c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paulbrwm_wm_setup_constant_sampler(struct brw_context *brw, 2298c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul struct wm_sampler_key *key) 2308c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul{ 2318c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul static const GLfloat black[4] = {0.0F, 0.0F, 0.0F, 0.0F}; 2328c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul const GLuint unit = BRW_MAX_TEX_UNIT - 1; 2338c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul struct wm_sampler_entry *entry = &key->sampler[unit]; 2348c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul 2358c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul entry->tex_target = GL_TEXTURE_1D; 2368c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul 2378c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul entry->wrap_r = GL_CLAMP_TO_EDGE; 2388c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul entry->wrap_s = GL_CLAMP_TO_EDGE; 2398c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul entry->wrap_t = GL_CLAMP_TO_EDGE; 2408c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul 2418c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul entry->maxlod = 0.0F; 2428c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul entry->minlod = 0.0F; 2438c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul entry->lod_bias = 0.0F; 2448c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul entry->max_aniso = 0.0F; 2458c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul entry->minfilter = GL_NEAREST; 2468c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul entry->magfilter = GL_NEAREST; 2478c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul entry->comparemode = GL_NONE; 2488c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul entry->comparefunc = GL_ALWAYS; 2498c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul 2508c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul dri_bo_unreference(brw->wm.sdc_bo[unit]); 2518c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul 2528c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul brw->wm.sdc_bo[unit] = upload_default_color(brw, black); 2538c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul 2548c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul key->sampler_count = unit + 1; 2558c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul} 2568c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul#endif 2578c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul 2588c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul 2593e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt/** Sets up the cache key for sampler state for all texture units */ 2603e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholtstatic void 2613e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholtbrw_wm_sampler_populate_key(struct brw_context *brw, 2623e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt struct wm_sampler_key *key) 2639f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt{ 264052c1d66a1ab1f2665870dc77dab28d20416cdf1Eric Anholt GLcontext *ctx = &brw->intel.ctx; 2653e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt int unit; 2663e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 2673e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt memset(key, 0, sizeof(*key)); 2689f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2699f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt for (unit = 0; unit < BRW_MAX_TEX_UNIT; unit++) { 270052c1d66a1ab1f2665870dc77dab28d20416cdf1Eric Anholt if (ctx->Texture.Unit[unit]._ReallyEnabled) { 2713e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt struct wm_sampler_entry *entry = &key->sampler[unit]; 272052c1d66a1ab1f2665870dc77dab28d20416cdf1Eric Anholt struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; 2739f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt struct gl_texture_object *texObj = texUnit->_Current; 2747216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt struct intel_texture_object *intelObj = intel_texture_object(texObj); 2757216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt struct gl_texture_image *firstImage = 2767216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt texObj->Image[0][intelObj->firstLevel]; 2776f915b10d5963466567ea5445631192fd9c4e802Brian Paul 2786f915b10d5963466567ea5445631192fd9c4e802Brian Paul entry->tex_target = texObj->Target; 2799f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2803e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->wrap_r = texObj->WrapR; 2813e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->wrap_s = texObj->WrapS; 2823e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->wrap_t = texObj->WrapT; 2839f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 2843e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->maxlod = texObj->MaxLod; 2853e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->minlod = texObj->MinLod; 2863e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->lod_bias = texUnit->LodBias + texObj->LodBias; 2873e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->max_aniso = texObj->MaxAnisotropy; 2883e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->minfilter = texObj->MinFilter; 2893e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->magfilter = texObj->MagFilter; 2903e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt entry->comparemode = texObj->CompareMode; 2911b3e3e6b841535b78ff4fa1d3861e9d8cdeff972Brian Paul entry->comparefunc = texObj->CompareFunc; 2929f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 29338bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholt dri_bo_unreference(brw->wm.sdc_bo[unit]); 2947216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt if (firstImage->_BaseFormat == GL_DEPTH_COMPONENT) { 2957216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt float bordercolor[4] = { 2967216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt texObj->BorderColor[0], 2977216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt texObj->BorderColor[0], 2987216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt texObj->BorderColor[0], 2997216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt texObj->BorderColor[0] 3007216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt }; 3017216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt /* GL specs that border color for depth textures is taken from the 3027216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt * R channel, while the hardware uses A. Spam R into all the 3037216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt * channels for safety. 3047216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt */ 3057216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt brw->wm.sdc_bo[unit] = upload_default_color(brw, bordercolor); 3067216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt } else { 3077216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt brw->wm.sdc_bo[unit] = upload_default_color(brw, 3087216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt texObj->BorderColor); 3097216679c1998b49ff5b08e6b43f8d5779415bf54Eric Anholt } 3103e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt key->sampler_count = unit + 1; 3119f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 3129f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 3138c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul 3148c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul#if 0 3158c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul brwm_wm_setup_constant_sampler(brw, key); 3168c093a1fb0843e152d2a515c5127ccd5999b0d94Brian Paul#endif 3173e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt} 3183e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 3193e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt/* All samplers must be uploaded in a single contiguous array, which 3203e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt * complicates various things. However, this is still too confusing - 3213e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt * FIXME: simplify all the different new texture state flags. 3223e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt */ 323f75843a517bd188639e6866db2a7b04de3524e16Dave Airliestatic void upload_wm_samplers( struct brw_context *brw ) 3243e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt{ 325052c1d66a1ab1f2665870dc77dab28d20416cdf1Eric Anholt GLcontext *ctx = &brw->intel.ctx; 3263e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt struct wm_sampler_key key; 3273e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt int i; 3283e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 3293e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw_wm_sampler_populate_key(brw, &key); 3303e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 3313e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt if (brw->wm.sampler_count != key.sampler_count) { 3323e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw->wm.sampler_count = key.sampler_count; 3339f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt brw->state.dirty.cache |= CACHE_NEW_SAMPLER; 3349f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt } 3359f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 33638bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholt dri_bo_unreference(brw->wm.sampler_bo); 3373e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw->wm.sampler_bo = NULL; 3383e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt if (brw->wm.sampler_count == 0) 339f75843a517bd188639e6866db2a7b04de3524e16Dave Airlie return; 3403e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 3413e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw->wm.sampler_bo = brw_search_cache(&brw->cache, BRW_SAMPLER, 3423e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt &key, sizeof(key), 3433e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw->wm.sdc_bo, key.sampler_count, 3443e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt NULL); 3453e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 3463e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt /* If we didnt find it in the cache, compute the state and put it in the 3473e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt * cache. 3483e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt */ 3493e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt if (brw->wm.sampler_bo == NULL) { 3503e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt struct brw_sampler_state sampler[BRW_MAX_TEX_UNIT]; 3513e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 3523e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt memset(sampler, 0, sizeof(sampler)); 3533e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt for (i = 0; i < key.sampler_count; i++) { 3543e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt if (brw->wm.sdc_bo[i] == NULL) 3553e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt continue; 3563e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 3573e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw_update_sampler_state(&key.sampler[i], brw->wm.sdc_bo[i], 3583e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt &sampler[i]); 3593e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt } 3603e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt 3613e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw->wm.sampler_bo = brw_upload_cache(&brw->cache, BRW_SAMPLER, 3623e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt &key, sizeof(key), 3633e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt brw->wm.sdc_bo, key.sampler_count, 3643e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt &sampler, sizeof(sampler), 3653e3644c6e8f3559fd5bcd862d5edb627aceb3ecaEric Anholt NULL, NULL); 3669f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 3678abffada70fcd62e3c2dcbcdc6d00d258805326bEric Anholt /* Emit SDC relocations */ 3688abffada70fcd62e3c2dcbcdc6d00d258805326bEric Anholt for (i = 0; i < BRW_MAX_TEX_UNIT; i++) { 369052c1d66a1ab1f2665870dc77dab28d20416cdf1Eric Anholt if (!ctx->Texture.Unit[i]._ReallyEnabled) 3708abffada70fcd62e3c2dcbcdc6d00d258805326bEric Anholt continue; 37138bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholt 3723628185f566e178a12b493fb89abf52b4b281f99Eric Anholt dri_bo_emit_reloc(brw->wm.sampler_bo, 37317fdd1ab3b48da8dff742e626c3c59bc89cafeedEric Anholt I915_GEM_DOMAIN_SAMPLER, 0, 3743628185f566e178a12b493fb89abf52b4b281f99Eric Anholt 0, 3753628185f566e178a12b493fb89abf52b4b281f99Eric Anholt i * sizeof(struct brw_sampler_state) + 3763628185f566e178a12b493fb89abf52b4b281f99Eric Anholt offsetof(struct brw_sampler_state, ss2), 3773628185f566e178a12b493fb89abf52b4b281f99Eric Anholt brw->wm.sdc_bo[i]); 3788abffada70fcd62e3c2dcbcdc6d00d258805326bEric Anholt } 37938bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholt } 38038bad7677e57d629eeffd4ef39a7fc254db12735Eric Anholt} 3819f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 3829f344b3e7d6e23674dd4747faec253f103563b36Eric Anholtconst struct brw_tracked_state brw_wm_samplers = { 3839f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt .dirty = { 3849f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt .mesa = _NEW_TEXTURE, 3859f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt .brw = 0, 3869f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt .cache = 0 3879f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt }, 388008653ac55776d6b1c6d1627ad20937aa1c4dbdaDave Airlie .prepare = upload_wm_samplers, 3899f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt}; 3909f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 3919f344b3e7d6e23674dd4747faec253f103563b36Eric Anholt 392