1 /************************************************************************** 2 * 3 * Copyright 2010 VMware, Inc. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 /** 29 * Implementation limits for LLVMpipe driver. 30 */ 31 32 #ifndef LP_LIMITS_H 33 #define LP_LIMITS_H 34 35 36 /** 37 * Tile size (width and height). This needs to be a power of two. 38 */ 39 #define TILE_ORDER 6 40 #define TILE_SIZE (1 << TILE_ORDER) 41 42 43 /** 44 * Max texture sizes 45 */ 46 #define LP_MAX_TEXTURE_SIZE (1 * 1024 * 1024 * 1024ULL) /* 1GB for now */ 47 #define LP_MAX_TEXTURE_2D_LEVELS 14 /* 8K x 8K for now */ 48 #define LP_MAX_TEXTURE_3D_LEVELS 12 /* 2K x 2K x 2K for now */ 49 #define LP_MAX_TEXTURE_CUBE_LEVELS 14 /* 8K x 8K for now */ 50 #define LP_MAX_TEXTURE_ARRAY_LAYERS 512 /* 8K x 512 / 8K x 8K x 512 */ 51 52 53 /** This must be the larger of LP_MAX_TEXTURE_2D/3D_LEVELS */ 54 #define LP_MAX_TEXTURE_LEVELS LP_MAX_TEXTURE_2D_LEVELS 55 56 57 /** 58 * Max drawing surface size is the max texture size 59 */ 60 #define LP_MAX_HEIGHT (1 << (LP_MAX_TEXTURE_LEVELS - 1)) 61 #define LP_MAX_WIDTH (1 << (LP_MAX_TEXTURE_LEVELS - 1)) 62 63 64 #define LP_MAX_THREADS 16 65 66 67 /** 68 * Max bytes per scene. This may be replaced by a runtime parameter. 69 */ 70 #define LP_MAX_SCENE_SIZE (512 * 1024 * 1024) 71 72 /** 73 * Max number of shader variants (for all shaders combined, 74 * per context) that will be kept around. 75 */ 76 #define LP_MAX_SHADER_VARIANTS 1024 77 78 /** 79 * Max number of instructions (for all fragment shaders combined per context) 80 * that will be kept around (counted in terms of llvm ir). 81 * Note: the definition looks odd, but there's branches which use a different 82 * number of max shader variants. 83 */ 84 #define LP_MAX_SHADER_INSTRUCTIONS MAX2(256*1024, 512*LP_MAX_SHADER_VARIANTS) 85 86 /** 87 * Max number of setup variants that will be kept around. 88 * 89 * These are determined by the combination of the fragment shader 90 * input signature and a small amount of rasterization state (eg 91 * flatshading). It is likely that many active fragment shaders will 92 * share the same setup variant. 93 */ 94 #define LP_MAX_SETUP_VARIANTS 64 95 96 #endif /* LP_LIMITS_H */ 97