src/gallium/drivers/llvmpipe/lp_limits.h

   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 /**
  47  * 2GB is the actual max currently (we always use 32bit offsets, and both
  48  * llvm GEP as well as avx2 gather use signed offsets).
  49  */
  50 #define LP_MAX_TEXTURE_SIZE (2 * 1024 * 1024 * 1024ULL)
  51 #define LP_MAX_TEXTURE_2D_LEVELS 14  /* 8K x 8K for now */
  52 #define LP_MAX_TEXTURE_3D_LEVELS 12  /* 2K x 2K x 2K for now */
  53 #define LP_MAX_TEXTURE_CUBE_LEVELS 14  /* 8K x 8K for now */
  54 #define LP_MAX_TEXTURE_ARRAY_LAYERS 512 /* 8K x 512 / 8K x 8K x 512 */
  55
  56
  57 /** This must be the larger of LP_MAX_TEXTURE_2D/3D_LEVELS */
  58 #define LP_MAX_TEXTURE_LEVELS LP_MAX_TEXTURE_2D_LEVELS
  59
  60
  61 /**
  62  * Max drawing surface size is the max texture size
  63  */
  64 #define LP_MAX_HEIGHT (1 << (LP_MAX_TEXTURE_LEVELS - 1))
  65 #define LP_MAX_WIDTH  (1 << (LP_MAX_TEXTURE_LEVELS - 1))
  66
  67
  68 #define LP_MAX_THREADS 16
  69
  70
  71 /**
  72  * Max bytes per scene.  This may be replaced by a runtime parameter.
  73  */
  74 #define LP_MAX_SCENE_SIZE (512 * 1024 * 1024)
  75
  76 /**
  77  * Max number of shader variants (for all shaders combined,
  78  * per context) that will be kept around.
  79  */
  80 #define LP_MAX_SHADER_VARIANTS 1024
  81
  82 /**
  83  * Max number of instructions (for all fragment shaders combined per context)
  84  * that will be kept around (counted in terms of llvm ir).
  85  */
  86 #define LP_MAX_SHADER_INSTRUCTIONS (2048 * LP_MAX_SHADER_VARIANTS)
  87
  88 /**
  89  * Max number of setup variants that will be kept around.
  90  *
  91  * These are determined by the combination of the fragment shader
  92  * input signature and a small amount of rasterization state (eg
  93  * flatshading).  It is likely that many active fragment shaders will
  94  * share the same setup variant.
  95  */
  96 #define LP_MAX_SETUP_VARIANTS 64
  97
  98 /*
  99  * Max point size reported. Cap vertex shader point sizes to this.
 100  */
 101 #define LP_MAX_POINT_WIDTH 255.0f
 102 #endif /* LP_LIMITS_H */