1 /**************************************************************************** 2 * Copyright (C) 2014-2015 Intel Corporation. All Rights Reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 * 23 * @file blend_jit.h 24 * 25 * @brief Definition of the blend jitter 26 * 27 * Notes: 28 * 29 ******************************************************************************/ 30 #pragma once 31 32 #include "common/formats.h" 33 #include "core/state.h" 34 35 struct RENDER_TARGET_BLEND_COMPILE_STATE 36 { 37 bool blendEnable; 38 bool logicOpEnable; 39 SWR_BLEND_FACTOR sourceAlphaBlendFactor; 40 SWR_BLEND_FACTOR destAlphaBlendFactor; 41 SWR_BLEND_FACTOR sourceBlendFactor; 42 SWR_BLEND_FACTOR destBlendFactor; 43 SWR_BLEND_OP colorBlendFunc; 44 SWR_BLEND_OP alphaBlendFunc; 45 SWR_LOGIC_OP logicOpFunc; 46 }; 47 48 enum ALPHA_TEST_FORMAT 49 { 50 ALPHA_TEST_UNORM8, 51 ALPHA_TEST_FLOAT32 52 }; 53 54 ////////////////////////////////////////////////////////////////////////// 55 /// BLEND_DESC 56 ////////////////////////////////////////////////////////////////////////// 57 struct BLEND_DESC 58 { 59 union 60 { 61 struct 62 { 63 uint32_t alphaTestEnable : 1; 64 uint32_t independentAlphaBlendEnable : 1; 65 uint32_t alphaToCoverageEnable : 1; 66 uint32_t oMaskEnable : 1; 67 uint32_t inputCoverageEnable : 1; 68 uint32_t sampleMaskEnable : 1; 69 uint32_t numSamples : 5; 70 uint32_t _reserved : 21; 71 }; 72 uint32_t bits; 73 }; 74 }; 75 #define BLEND_ENABLE_MASK 0x3D // a2c | oMaskEnable | inputCoverageEnable | sampleMaskEnable 76 ////////////////////////////////////////////////////////////////////////// 77 /// State required for blend jit 78 ////////////////////////////////////////////////////////////////////////// 79 struct BLEND_COMPILE_STATE 80 { 81 SWR_FORMAT format; // format of render target being blended 82 RENDER_TARGET_BLEND_COMPILE_STATE blendState; 83 BLEND_DESC desc; 84 85 SWR_ZFUNCTION alphaTestFunction; 86 ALPHA_TEST_FORMAT alphaTestFormat; 87 88 bool operator==(const BLEND_COMPILE_STATE& other) const 89 { 90 return memcmp(this, &other, sizeof(BLEND_COMPILE_STATE)) == 0; 91 } 92 93 // Canonicalize state to reduce unnecessary JIT compiles CanonicalizeBLEND_COMPILE_STATE94 void Canonicalize() 95 { 96 if (!desc.alphaTestEnable) 97 { 98 alphaTestFormat = (ALPHA_TEST_FORMAT)0; 99 alphaTestFunction = (SWR_ZFUNCTION)0; 100 } 101 102 if (!blendState.blendEnable) 103 { 104 blendState.sourceAlphaBlendFactor = (SWR_BLEND_FACTOR)0; 105 blendState.destAlphaBlendFactor = (SWR_BLEND_FACTOR)0; 106 blendState.sourceBlendFactor = (SWR_BLEND_FACTOR)0; 107 blendState.destBlendFactor = (SWR_BLEND_FACTOR)0; 108 blendState.colorBlendFunc = (SWR_BLEND_OP)0; 109 blendState.alphaBlendFunc = (SWR_BLEND_OP)0; 110 } 111 112 if (!blendState.logicOpEnable) 113 { 114 blendState.logicOpFunc = (SWR_LOGIC_OP)0; 115 } 116 117 if (!blendState.blendEnable && !blendState.logicOpEnable) 118 { 119 format = (SWR_FORMAT)0; 120 } 121 122 if (!desc.independentAlphaBlendEnable) 123 { 124 blendState.sourceAlphaBlendFactor = (SWR_BLEND_FACTOR)0; 125 blendState.destAlphaBlendFactor = (SWR_BLEND_FACTOR)0; 126 blendState.alphaBlendFunc = (SWR_BLEND_OP)0; 127 } 128 } 129 }; 130