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      1 /*
      2 * Copyright 2016 Google Inc.
      3 *
      4 * Use of this source code is governed by a BSD-style license that can be
      5 * found in the LICENSE file.
      6 */
      7 
      8 #include "GrVkPipeline.h"
      9 #include "GrGeometryProcessor.h"
     10 #include "GrPipeline.h"
     11 #include "GrStencilSettings.h"
     12 #include "GrVkCommandBuffer.h"
     13 #include "GrVkGpu.h"
     14 #include "GrVkRenderTarget.h"
     15 #include "GrVkUtil.h"
     16 
     17 static inline VkFormat attrib_type_to_vkformat(GrVertexAttribType type) {
     18     switch (type) {
     19         case kFloat_GrVertexAttribType:
     20             return VK_FORMAT_R32_SFLOAT;
     21         case kFloat2_GrVertexAttribType:
     22             return VK_FORMAT_R32G32_SFLOAT;
     23         case kFloat3_GrVertexAttribType:
     24             return VK_FORMAT_R32G32B32_SFLOAT;
     25         case kFloat4_GrVertexAttribType:
     26             return VK_FORMAT_R32G32B32A32_SFLOAT;
     27         case kHalf_GrVertexAttribType:
     28             return VK_FORMAT_R16_SFLOAT;
     29         case kHalf2_GrVertexAttribType:
     30             return VK_FORMAT_R16G16_SFLOAT;
     31         case kHalf3_GrVertexAttribType:
     32             return VK_FORMAT_R16G16B16_SFLOAT;
     33         case kHalf4_GrVertexAttribType:
     34             return VK_FORMAT_R16G16B16A16_SFLOAT;
     35         case kInt2_GrVertexAttribType:
     36             return VK_FORMAT_R32G32_SINT;
     37         case kInt3_GrVertexAttribType:
     38             return VK_FORMAT_R32G32B32_SINT;
     39         case kInt4_GrVertexAttribType:
     40             return VK_FORMAT_R32G32B32A32_SINT;
     41         case kByte_GrVertexAttribType:
     42             return VK_FORMAT_R8_SINT;
     43         case kByte2_GrVertexAttribType:
     44             return VK_FORMAT_R8G8_SINT;
     45         case kByte3_GrVertexAttribType:
     46             return VK_FORMAT_R8G8B8_SINT;
     47         case kByte4_GrVertexAttribType:
     48             return VK_FORMAT_R8G8B8A8_SINT;
     49         case kUByte_GrVertexAttribType:
     50             return VK_FORMAT_R8_UINT;
     51         case kUByte2_GrVertexAttribType:
     52             return VK_FORMAT_R8G8_UINT;
     53         case kUByte3_GrVertexAttribType:
     54             return VK_FORMAT_R8G8B8_UINT;
     55         case kUByte4_GrVertexAttribType:
     56             return VK_FORMAT_R8G8B8A8_UINT;
     57         case kUByte_norm_GrVertexAttribType:
     58             return VK_FORMAT_R8_UNORM;
     59         case kUByte4_norm_GrVertexAttribType:
     60             return VK_FORMAT_R8G8B8A8_UNORM;
     61         case kShort2_GrVertexAttribType:
     62             return VK_FORMAT_R16G16_SINT;
     63         case kShort4_GrVertexAttribType:
     64             return VK_FORMAT_R16G16B16A16_SINT;
     65         case kUShort2_GrVertexAttribType:
     66             return VK_FORMAT_R16G16_UINT;
     67         case kUShort2_norm_GrVertexAttribType:
     68             return VK_FORMAT_R16G16_UNORM;
     69         case kInt_GrVertexAttribType:
     70             return VK_FORMAT_R32_SINT;
     71         case kUint_GrVertexAttribType:
     72             return VK_FORMAT_R32_UINT;
     73     }
     74     SK_ABORT("Unknown vertex attrib type");
     75     return VK_FORMAT_UNDEFINED;
     76 }
     77 
     78 static void setup_vertex_input_state(const GrPrimitiveProcessor& primProc,
     79                                   VkPipelineVertexInputStateCreateInfo* vertexInputInfo,
     80                                   SkSTArray<2, VkVertexInputBindingDescription, true>* bindingDescs,
     81                                   VkVertexInputAttributeDescription* attributeDesc) {
     82     uint32_t vertexBinding = 0, instanceBinding = 0;
     83 
     84     int nextBinding = bindingDescs->count();
     85     if (primProc.hasVertexAttributes()) {
     86         vertexBinding = nextBinding++;
     87     }
     88 
     89     if (primProc.hasInstanceAttributes()) {
     90         instanceBinding = nextBinding;
     91     }
     92 
     93     // setup attribute descriptions
     94     int vaCount = primProc.numVertexAttributes();
     95     int attribIndex = 0;
     96     size_t vertexAttributeOffset = 0;
     97     for (const auto& attrib : primProc.vertexAttributes()) {
     98         VkVertexInputAttributeDescription& vkAttrib = attributeDesc[attribIndex];
     99         vkAttrib.location = attribIndex++;  // for now assume location = attribIndex
    100         vkAttrib.binding = vertexBinding;
    101         vkAttrib.format = attrib_type_to_vkformat(attrib.cpuType());
    102         vkAttrib.offset = vertexAttributeOffset;
    103         vertexAttributeOffset += attrib.sizeAlign4();
    104     }
    105     SkASSERT(vertexAttributeOffset == primProc.vertexStride());
    106 
    107     int iaCount = primProc.numInstanceAttributes();
    108     size_t instanceAttributeOffset = 0;
    109     for (const auto& attrib : primProc.instanceAttributes()) {
    110         VkVertexInputAttributeDescription& vkAttrib = attributeDesc[attribIndex];
    111         vkAttrib.location = attribIndex++;  // for now assume location = attribIndex
    112         vkAttrib.binding = instanceBinding;
    113         vkAttrib.format = attrib_type_to_vkformat(attrib.cpuType());
    114         vkAttrib.offset = instanceAttributeOffset;
    115         instanceAttributeOffset += attrib.sizeAlign4();
    116     }
    117     SkASSERT(instanceAttributeOffset == primProc.instanceStride());
    118 
    119     if (primProc.hasVertexAttributes()) {
    120         bindingDescs->push_back() = {
    121                 vertexBinding,
    122                 (uint32_t) vertexAttributeOffset,
    123                 VK_VERTEX_INPUT_RATE_VERTEX
    124         };
    125     }
    126     if (primProc.hasInstanceAttributes()) {
    127         bindingDescs->push_back() = {
    128                 instanceBinding,
    129                 (uint32_t) instanceAttributeOffset,
    130                 VK_VERTEX_INPUT_RATE_INSTANCE
    131         };
    132     }
    133 
    134     memset(vertexInputInfo, 0, sizeof(VkPipelineVertexInputStateCreateInfo));
    135     vertexInputInfo->sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
    136     vertexInputInfo->pNext = nullptr;
    137     vertexInputInfo->flags = 0;
    138     vertexInputInfo->vertexBindingDescriptionCount = bindingDescs->count();
    139     vertexInputInfo->pVertexBindingDescriptions = bindingDescs->begin();
    140     vertexInputInfo->vertexAttributeDescriptionCount = vaCount + iaCount;
    141     vertexInputInfo->pVertexAttributeDescriptions = attributeDesc;
    142 }
    143 
    144 static VkPrimitiveTopology gr_primitive_type_to_vk_topology(GrPrimitiveType primitiveType) {
    145     switch (primitiveType) {
    146         case GrPrimitiveType::kTriangles:
    147             return VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
    148         case GrPrimitiveType::kTriangleStrip:
    149             return VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP;
    150         case GrPrimitiveType::kPoints:
    151             return VK_PRIMITIVE_TOPOLOGY_POINT_LIST;
    152         case GrPrimitiveType::kLines:
    153             return VK_PRIMITIVE_TOPOLOGY_LINE_LIST;
    154         case GrPrimitiveType::kLineStrip:
    155             return VK_PRIMITIVE_TOPOLOGY_LINE_STRIP;
    156         case GrPrimitiveType::kLinesAdjacency:
    157             return VK_PRIMITIVE_TOPOLOGY_LINE_LIST_WITH_ADJACENCY;
    158     }
    159     SK_ABORT("invalid GrPrimitiveType");
    160     return VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
    161 }
    162 
    163 static void setup_input_assembly_state(GrPrimitiveType primitiveType,
    164                                        VkPipelineInputAssemblyStateCreateInfo* inputAssemblyInfo) {
    165     memset(inputAssemblyInfo, 0, sizeof(VkPipelineInputAssemblyStateCreateInfo));
    166     inputAssemblyInfo->sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
    167     inputAssemblyInfo->pNext = nullptr;
    168     inputAssemblyInfo->flags = 0;
    169     inputAssemblyInfo->primitiveRestartEnable = false;
    170     inputAssemblyInfo->topology = gr_primitive_type_to_vk_topology(primitiveType);
    171 }
    172 
    173 
    174 static VkStencilOp stencil_op_to_vk_stencil_op(GrStencilOp op) {
    175     static const VkStencilOp gTable[] = {
    176         VK_STENCIL_OP_KEEP,                 // kKeep
    177         VK_STENCIL_OP_ZERO,                 // kZero
    178         VK_STENCIL_OP_REPLACE,              // kReplace
    179         VK_STENCIL_OP_INVERT,               // kInvert
    180         VK_STENCIL_OP_INCREMENT_AND_WRAP,   // kIncWrap
    181         VK_STENCIL_OP_DECREMENT_AND_WRAP,   // kDecWrap
    182         VK_STENCIL_OP_INCREMENT_AND_CLAMP,  // kIncClamp
    183         VK_STENCIL_OP_DECREMENT_AND_CLAMP,  // kDecClamp
    184     };
    185     GR_STATIC_ASSERT(SK_ARRAY_COUNT(gTable) == kGrStencilOpCount);
    186     GR_STATIC_ASSERT(0 == (int)GrStencilOp::kKeep);
    187     GR_STATIC_ASSERT(1 == (int)GrStencilOp::kZero);
    188     GR_STATIC_ASSERT(2 == (int)GrStencilOp::kReplace);
    189     GR_STATIC_ASSERT(3 == (int)GrStencilOp::kInvert);
    190     GR_STATIC_ASSERT(4 == (int)GrStencilOp::kIncWrap);
    191     GR_STATIC_ASSERT(5 == (int)GrStencilOp::kDecWrap);
    192     GR_STATIC_ASSERT(6 == (int)GrStencilOp::kIncClamp);
    193     GR_STATIC_ASSERT(7 == (int)GrStencilOp::kDecClamp);
    194     SkASSERT(op < (GrStencilOp)kGrStencilOpCount);
    195     return gTable[(int)op];
    196 }
    197 
    198 static VkCompareOp stencil_func_to_vk_compare_op(GrStencilTest test) {
    199     static const VkCompareOp gTable[] = {
    200         VK_COMPARE_OP_ALWAYS,              // kAlways
    201         VK_COMPARE_OP_NEVER,               // kNever
    202         VK_COMPARE_OP_GREATER,             // kGreater
    203         VK_COMPARE_OP_GREATER_OR_EQUAL,    // kGEqual
    204         VK_COMPARE_OP_LESS,                // kLess
    205         VK_COMPARE_OP_LESS_OR_EQUAL,       // kLEqual
    206         VK_COMPARE_OP_EQUAL,               // kEqual
    207         VK_COMPARE_OP_NOT_EQUAL,           // kNotEqual
    208     };
    209     GR_STATIC_ASSERT(SK_ARRAY_COUNT(gTable) == kGrStencilTestCount);
    210     GR_STATIC_ASSERT(0 == (int)GrStencilTest::kAlways);
    211     GR_STATIC_ASSERT(1 == (int)GrStencilTest::kNever);
    212     GR_STATIC_ASSERT(2 == (int)GrStencilTest::kGreater);
    213     GR_STATIC_ASSERT(3 == (int)GrStencilTest::kGEqual);
    214     GR_STATIC_ASSERT(4 == (int)GrStencilTest::kLess);
    215     GR_STATIC_ASSERT(5 == (int)GrStencilTest::kLEqual);
    216     GR_STATIC_ASSERT(6 == (int)GrStencilTest::kEqual);
    217     GR_STATIC_ASSERT(7 == (int)GrStencilTest::kNotEqual);
    218     SkASSERT(test < (GrStencilTest)kGrStencilTestCount);
    219 
    220     return gTable[(int)test];
    221 }
    222 
    223 static void setup_depth_stencil_state(const GrStencilSettings& stencilSettings,
    224                                       VkPipelineDepthStencilStateCreateInfo* stencilInfo) {
    225     memset(stencilInfo, 0, sizeof(VkPipelineDepthStencilStateCreateInfo));
    226     stencilInfo->sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
    227     stencilInfo->pNext = nullptr;
    228     stencilInfo->flags = 0;
    229     // set depth testing defaults
    230     stencilInfo->depthTestEnable = VK_FALSE;
    231     stencilInfo->depthWriteEnable = VK_FALSE;
    232     stencilInfo->depthCompareOp = VK_COMPARE_OP_ALWAYS;
    233     stencilInfo->depthBoundsTestEnable = VK_FALSE;
    234     stencilInfo->stencilTestEnable = !stencilSettings.isDisabled();
    235     if (!stencilSettings.isDisabled()) {
    236         // Set front face
    237         const GrStencilSettings::Face& front = stencilSettings.front();
    238         stencilInfo->front.failOp = stencil_op_to_vk_stencil_op(front.fFailOp);
    239         stencilInfo->front.passOp = stencil_op_to_vk_stencil_op(front.fPassOp);
    240         stencilInfo->front.depthFailOp = stencilInfo->front.failOp;
    241         stencilInfo->front.compareOp = stencil_func_to_vk_compare_op(front.fTest);
    242         stencilInfo->front.compareMask = front.fTestMask;
    243         stencilInfo->front.writeMask = front.fWriteMask;
    244         stencilInfo->front.reference = front.fRef;
    245 
    246         // Set back face
    247         if (!stencilSettings.isTwoSided()) {
    248             stencilInfo->back = stencilInfo->front;
    249         } else {
    250             const GrStencilSettings::Face& back = stencilSettings.back();
    251             stencilInfo->back.failOp = stencil_op_to_vk_stencil_op(back.fFailOp);
    252             stencilInfo->back.passOp = stencil_op_to_vk_stencil_op(back.fPassOp);
    253             stencilInfo->back.depthFailOp = stencilInfo->front.failOp;
    254             stencilInfo->back.compareOp = stencil_func_to_vk_compare_op(back.fTest);
    255             stencilInfo->back.compareMask = back.fTestMask;
    256             stencilInfo->back.writeMask = back.fWriteMask;
    257             stencilInfo->back.reference = back.fRef;
    258         }
    259     }
    260     stencilInfo->minDepthBounds = 0.0f;
    261     stencilInfo->maxDepthBounds = 1.0f;
    262 }
    263 
    264 static void setup_viewport_scissor_state(VkPipelineViewportStateCreateInfo* viewportInfo) {
    265     memset(viewportInfo, 0, sizeof(VkPipelineViewportStateCreateInfo));
    266     viewportInfo->sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
    267     viewportInfo->pNext = nullptr;
    268     viewportInfo->flags = 0;
    269 
    270     viewportInfo->viewportCount = 1;
    271     viewportInfo->pViewports = nullptr; // This is set dynamically
    272 
    273     viewportInfo->scissorCount = 1;
    274     viewportInfo->pScissors = nullptr; // This is set dynamically
    275 
    276     SkASSERT(viewportInfo->viewportCount == viewportInfo->scissorCount);
    277 }
    278 
    279 static void setup_multisample_state(int numColorSamples,
    280                                     const GrPrimitiveProcessor& primProc,
    281                                     const GrPipeline& pipeline,
    282                                     const GrCaps* caps,
    283                                     VkPipelineMultisampleStateCreateInfo* multisampleInfo) {
    284     memset(multisampleInfo, 0, sizeof(VkPipelineMultisampleStateCreateInfo));
    285     multisampleInfo->sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
    286     multisampleInfo->pNext = nullptr;
    287     multisampleInfo->flags = 0;
    288     SkAssertResult(GrSampleCountToVkSampleCount(numColorSamples,
    289                    &multisampleInfo->rasterizationSamples));
    290     multisampleInfo->sampleShadingEnable = VK_FALSE;
    291     multisampleInfo->minSampleShading = 0.0f;
    292     multisampleInfo->pSampleMask = nullptr;
    293     multisampleInfo->alphaToCoverageEnable = VK_FALSE;
    294     multisampleInfo->alphaToOneEnable = VK_FALSE;
    295 }
    296 
    297 static VkBlendFactor blend_coeff_to_vk_blend(GrBlendCoeff coeff) {
    298     static const VkBlendFactor gTable[] = {
    299         VK_BLEND_FACTOR_ZERO,                      // kZero_GrBlendCoeff
    300         VK_BLEND_FACTOR_ONE,                       // kOne_GrBlendCoeff
    301         VK_BLEND_FACTOR_SRC_COLOR,                 // kSC_GrBlendCoeff
    302         VK_BLEND_FACTOR_ONE_MINUS_SRC_COLOR,       // kISC_GrBlendCoeff
    303         VK_BLEND_FACTOR_DST_COLOR,                 // kDC_GrBlendCoeff
    304         VK_BLEND_FACTOR_ONE_MINUS_DST_COLOR,       // kIDC_GrBlendCoeff
    305         VK_BLEND_FACTOR_SRC_ALPHA,                 // kSA_GrBlendCoeff
    306         VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA,       // kISA_GrBlendCoeff
    307         VK_BLEND_FACTOR_DST_ALPHA,                 // kDA_GrBlendCoeff
    308         VK_BLEND_FACTOR_ONE_MINUS_DST_ALPHA,       // kIDA_GrBlendCoeff
    309         VK_BLEND_FACTOR_CONSTANT_COLOR,            // kConstC_GrBlendCoeff
    310         VK_BLEND_FACTOR_ONE_MINUS_CONSTANT_COLOR,  // kIConstC_GrBlendCoeff
    311         VK_BLEND_FACTOR_CONSTANT_ALPHA,            // kConstA_GrBlendCoeff
    312         VK_BLEND_FACTOR_ONE_MINUS_CONSTANT_ALPHA,  // kIConstA_GrBlendCoeff
    313         VK_BLEND_FACTOR_SRC1_COLOR,                // kS2C_GrBlendCoeff
    314         VK_BLEND_FACTOR_ONE_MINUS_SRC1_COLOR,      // kIS2C_GrBlendCoeff
    315         VK_BLEND_FACTOR_SRC1_ALPHA,                // kS2A_GrBlendCoeff
    316         VK_BLEND_FACTOR_ONE_MINUS_SRC1_ALPHA,      // kIS2A_GrBlendCoeff
    317         VK_BLEND_FACTOR_ZERO,                      // kIllegal_GrBlendCoeff
    318     };
    319     GR_STATIC_ASSERT(SK_ARRAY_COUNT(gTable) == kGrBlendCoeffCnt);
    320     GR_STATIC_ASSERT(0 == kZero_GrBlendCoeff);
    321     GR_STATIC_ASSERT(1 == kOne_GrBlendCoeff);
    322     GR_STATIC_ASSERT(2 == kSC_GrBlendCoeff);
    323     GR_STATIC_ASSERT(3 == kISC_GrBlendCoeff);
    324     GR_STATIC_ASSERT(4 == kDC_GrBlendCoeff);
    325     GR_STATIC_ASSERT(5 == kIDC_GrBlendCoeff);
    326     GR_STATIC_ASSERT(6 == kSA_GrBlendCoeff);
    327     GR_STATIC_ASSERT(7 == kISA_GrBlendCoeff);
    328     GR_STATIC_ASSERT(8 == kDA_GrBlendCoeff);
    329     GR_STATIC_ASSERT(9 == kIDA_GrBlendCoeff);
    330     GR_STATIC_ASSERT(10 == kConstC_GrBlendCoeff);
    331     GR_STATIC_ASSERT(11 == kIConstC_GrBlendCoeff);
    332     GR_STATIC_ASSERT(12 == kConstA_GrBlendCoeff);
    333     GR_STATIC_ASSERT(13 == kIConstA_GrBlendCoeff);
    334     GR_STATIC_ASSERT(14 == kS2C_GrBlendCoeff);
    335     GR_STATIC_ASSERT(15 == kIS2C_GrBlendCoeff);
    336     GR_STATIC_ASSERT(16 == kS2A_GrBlendCoeff);
    337     GR_STATIC_ASSERT(17 == kIS2A_GrBlendCoeff);
    338 
    339     SkASSERT((unsigned)coeff < kGrBlendCoeffCnt);
    340     return gTable[coeff];
    341 }
    342 
    343 
    344 static VkBlendOp blend_equation_to_vk_blend_op(GrBlendEquation equation) {
    345     static const VkBlendOp gTable[] = {
    346         // Basic blend ops
    347         VK_BLEND_OP_ADD,
    348         VK_BLEND_OP_SUBTRACT,
    349         VK_BLEND_OP_REVERSE_SUBTRACT,
    350 
    351         // Advanced blend ops
    352         VK_BLEND_OP_SCREEN_EXT,
    353         VK_BLEND_OP_OVERLAY_EXT,
    354         VK_BLEND_OP_DARKEN_EXT,
    355         VK_BLEND_OP_LIGHTEN_EXT,
    356         VK_BLEND_OP_COLORDODGE_EXT,
    357         VK_BLEND_OP_COLORBURN_EXT,
    358         VK_BLEND_OP_HARDLIGHT_EXT,
    359         VK_BLEND_OP_SOFTLIGHT_EXT,
    360         VK_BLEND_OP_DIFFERENCE_EXT,
    361         VK_BLEND_OP_EXCLUSION_EXT,
    362         VK_BLEND_OP_MULTIPLY_EXT,
    363         VK_BLEND_OP_HSL_HUE_EXT,
    364         VK_BLEND_OP_HSL_SATURATION_EXT,
    365         VK_BLEND_OP_HSL_COLOR_EXT,
    366         VK_BLEND_OP_HSL_LUMINOSITY_EXT,
    367 
    368         // Illegal.
    369         VK_BLEND_OP_ADD,
    370     };
    371     GR_STATIC_ASSERT(0 == kAdd_GrBlendEquation);
    372     GR_STATIC_ASSERT(1 == kSubtract_GrBlendEquation);
    373     GR_STATIC_ASSERT(2 == kReverseSubtract_GrBlendEquation);
    374     GR_STATIC_ASSERT(3 == kScreen_GrBlendEquation);
    375     GR_STATIC_ASSERT(4 == kOverlay_GrBlendEquation);
    376     GR_STATIC_ASSERT(5 == kDarken_GrBlendEquation);
    377     GR_STATIC_ASSERT(6 == kLighten_GrBlendEquation);
    378     GR_STATIC_ASSERT(7 == kColorDodge_GrBlendEquation);
    379     GR_STATIC_ASSERT(8 == kColorBurn_GrBlendEquation);
    380     GR_STATIC_ASSERT(9 == kHardLight_GrBlendEquation);
    381     GR_STATIC_ASSERT(10 == kSoftLight_GrBlendEquation);
    382     GR_STATIC_ASSERT(11 == kDifference_GrBlendEquation);
    383     GR_STATIC_ASSERT(12 == kExclusion_GrBlendEquation);
    384     GR_STATIC_ASSERT(13 == kMultiply_GrBlendEquation);
    385     GR_STATIC_ASSERT(14 == kHSLHue_GrBlendEquation);
    386     GR_STATIC_ASSERT(15 == kHSLSaturation_GrBlendEquation);
    387     GR_STATIC_ASSERT(16 == kHSLColor_GrBlendEquation);
    388     GR_STATIC_ASSERT(17 == kHSLLuminosity_GrBlendEquation);
    389     GR_STATIC_ASSERT(SK_ARRAY_COUNT(gTable) == kGrBlendEquationCnt);
    390 
    391     SkASSERT((unsigned)equation < kGrBlendCoeffCnt);
    392     return gTable[equation];
    393 }
    394 
    395 static bool blend_coeff_refs_constant(GrBlendCoeff coeff) {
    396     static const bool gCoeffReferencesBlendConst[] = {
    397         false,
    398         false,
    399         false,
    400         false,
    401         false,
    402         false,
    403         false,
    404         false,
    405         false,
    406         false,
    407         true,
    408         true,
    409         true,
    410         true,
    411 
    412         // extended blend coeffs
    413         false,
    414         false,
    415         false,
    416         false,
    417 
    418         // Illegal
    419         false,
    420     };
    421     return gCoeffReferencesBlendConst[coeff];
    422     GR_STATIC_ASSERT(kGrBlendCoeffCnt == SK_ARRAY_COUNT(gCoeffReferencesBlendConst));
    423     // Individual enum asserts already made in blend_coeff_to_vk_blend
    424 }
    425 
    426 static void setup_color_blend_state(const GrPipeline& pipeline,
    427                                     VkPipelineColorBlendStateCreateInfo* colorBlendInfo,
    428                                     VkPipelineColorBlendAttachmentState* attachmentState) {
    429     GrXferProcessor::BlendInfo blendInfo;
    430     pipeline.getXferProcessor().getBlendInfo(&blendInfo);
    431 
    432     GrBlendEquation equation = blendInfo.fEquation;
    433     GrBlendCoeff srcCoeff = blendInfo.fSrcBlend;
    434     GrBlendCoeff dstCoeff = blendInfo.fDstBlend;
    435     bool blendOff = (kAdd_GrBlendEquation == equation || kSubtract_GrBlendEquation == equation) &&
    436                     kOne_GrBlendCoeff == srcCoeff && kZero_GrBlendCoeff == dstCoeff;
    437 
    438     memset(attachmentState, 0, sizeof(VkPipelineColorBlendAttachmentState));
    439     attachmentState->blendEnable = !blendOff;
    440     if (!blendOff) {
    441         attachmentState->srcColorBlendFactor = blend_coeff_to_vk_blend(srcCoeff);
    442         attachmentState->dstColorBlendFactor = blend_coeff_to_vk_blend(dstCoeff);
    443         attachmentState->colorBlendOp = blend_equation_to_vk_blend_op(equation);
    444         attachmentState->srcAlphaBlendFactor = blend_coeff_to_vk_blend(srcCoeff);
    445         attachmentState->dstAlphaBlendFactor = blend_coeff_to_vk_blend(dstCoeff);
    446         attachmentState->alphaBlendOp = blend_equation_to_vk_blend_op(equation);
    447     }
    448 
    449     if (!blendInfo.fWriteColor) {
    450         attachmentState->colorWriteMask = 0;
    451     } else {
    452         attachmentState->colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT |
    453                                           VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
    454     }
    455 
    456     memset(colorBlendInfo, 0, sizeof(VkPipelineColorBlendStateCreateInfo));
    457     colorBlendInfo->sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
    458     colorBlendInfo->pNext = nullptr;
    459     colorBlendInfo->flags = 0;
    460     colorBlendInfo->logicOpEnable = VK_FALSE;
    461     colorBlendInfo->attachmentCount = 1;
    462     colorBlendInfo->pAttachments = attachmentState;
    463     // colorBlendInfo->blendConstants is set dynamically
    464 }
    465 
    466 static void setup_raster_state(const GrPipeline& pipeline,
    467                                const GrCaps* caps,
    468                                VkPipelineRasterizationStateCreateInfo* rasterInfo) {
    469     memset(rasterInfo, 0, sizeof(VkPipelineRasterizationStateCreateInfo));
    470     rasterInfo->sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
    471     rasterInfo->pNext = nullptr;
    472     rasterInfo->flags = 0;
    473     rasterInfo->depthClampEnable = VK_FALSE;
    474     rasterInfo->rasterizerDiscardEnable = VK_FALSE;
    475     rasterInfo->polygonMode = caps->wireframeMode() ? VK_POLYGON_MODE_LINE
    476                                                     : VK_POLYGON_MODE_FILL;
    477     rasterInfo->cullMode = VK_CULL_MODE_NONE;
    478     rasterInfo->frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE;
    479     rasterInfo->depthBiasEnable = VK_FALSE;
    480     rasterInfo->depthBiasConstantFactor = 0.0f;
    481     rasterInfo->depthBiasClamp = 0.0f;
    482     rasterInfo->depthBiasSlopeFactor = 0.0f;
    483     rasterInfo->lineWidth = 1.0f;
    484 }
    485 
    486 static void setup_dynamic_state(VkPipelineDynamicStateCreateInfo* dynamicInfo,
    487                                 VkDynamicState* dynamicStates) {
    488     memset(dynamicInfo, 0, sizeof(VkPipelineDynamicStateCreateInfo));
    489     dynamicInfo->sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
    490     dynamicInfo->pNext = VK_NULL_HANDLE;
    491     dynamicInfo->flags = 0;
    492     dynamicStates[0] = VK_DYNAMIC_STATE_VIEWPORT;
    493     dynamicStates[1] = VK_DYNAMIC_STATE_SCISSOR;
    494     dynamicStates[2] = VK_DYNAMIC_STATE_BLEND_CONSTANTS;
    495     dynamicInfo->dynamicStateCount = 3;
    496     dynamicInfo->pDynamicStates = dynamicStates;
    497 }
    498 
    499 GrVkPipeline* GrVkPipeline::Create(GrVkGpu* gpu, int numColorSamples,
    500                                    const GrPrimitiveProcessor& primProc,
    501                                    const GrPipeline& pipeline, const GrStencilSettings& stencil,
    502                                    VkPipelineShaderStageCreateInfo* shaderStageInfo,
    503                                    int shaderStageCount, GrPrimitiveType primitiveType,
    504                                    VkRenderPass compatibleRenderPass, VkPipelineLayout layout,
    505                                    VkPipelineCache cache) {
    506     VkPipelineVertexInputStateCreateInfo vertexInputInfo;
    507     SkSTArray<2, VkVertexInputBindingDescription, true> bindingDescs;
    508     SkSTArray<16, VkVertexInputAttributeDescription> attributeDesc;
    509     int totalAttributeCnt = primProc.numVertexAttributes() + primProc.numInstanceAttributes();
    510     SkASSERT(totalAttributeCnt <= gpu->vkCaps().maxVertexAttributes());
    511     VkVertexInputAttributeDescription* pAttribs = attributeDesc.push_back_n(totalAttributeCnt);
    512     setup_vertex_input_state(primProc, &vertexInputInfo, &bindingDescs, pAttribs);
    513 
    514     VkPipelineInputAssemblyStateCreateInfo inputAssemblyInfo;
    515     setup_input_assembly_state(primitiveType, &inputAssemblyInfo);
    516 
    517     VkPipelineDepthStencilStateCreateInfo depthStencilInfo;
    518     setup_depth_stencil_state(stencil, &depthStencilInfo);
    519 
    520     VkPipelineViewportStateCreateInfo viewportInfo;
    521     setup_viewport_scissor_state(&viewportInfo);
    522 
    523     VkPipelineMultisampleStateCreateInfo multisampleInfo;
    524     setup_multisample_state(numColorSamples, primProc, pipeline, gpu->caps(), &multisampleInfo);
    525 
    526     // We will only have one color attachment per pipeline.
    527     VkPipelineColorBlendAttachmentState attachmentStates[1];
    528     VkPipelineColorBlendStateCreateInfo colorBlendInfo;
    529     setup_color_blend_state(pipeline, &colorBlendInfo, attachmentStates);
    530 
    531     VkPipelineRasterizationStateCreateInfo rasterInfo;
    532     setup_raster_state(pipeline, gpu->caps(), &rasterInfo);
    533 
    534     VkDynamicState dynamicStates[3];
    535     VkPipelineDynamicStateCreateInfo dynamicInfo;
    536     setup_dynamic_state(&dynamicInfo, dynamicStates);
    537 
    538     VkGraphicsPipelineCreateInfo pipelineCreateInfo;
    539     memset(&pipelineCreateInfo, 0, sizeof(VkGraphicsPipelineCreateInfo));
    540     pipelineCreateInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
    541     pipelineCreateInfo.pNext = nullptr;
    542     pipelineCreateInfo.flags = 0;
    543     pipelineCreateInfo.stageCount = shaderStageCount;
    544     pipelineCreateInfo.pStages = shaderStageInfo;
    545     pipelineCreateInfo.pVertexInputState = &vertexInputInfo;
    546     pipelineCreateInfo.pInputAssemblyState = &inputAssemblyInfo;
    547     pipelineCreateInfo.pTessellationState = nullptr;
    548     pipelineCreateInfo.pViewportState = &viewportInfo;
    549     pipelineCreateInfo.pRasterizationState = &rasterInfo;
    550     pipelineCreateInfo.pMultisampleState = &multisampleInfo;
    551     pipelineCreateInfo.pDepthStencilState = &depthStencilInfo;
    552     pipelineCreateInfo.pColorBlendState = &colorBlendInfo;
    553     pipelineCreateInfo.pDynamicState = &dynamicInfo;
    554     pipelineCreateInfo.layout = layout;
    555     pipelineCreateInfo.renderPass = compatibleRenderPass;
    556     pipelineCreateInfo.subpass = 0;
    557     pipelineCreateInfo.basePipelineHandle = VK_NULL_HANDLE;
    558     pipelineCreateInfo.basePipelineIndex = -1;
    559 
    560     VkPipeline vkPipeline;
    561     VkResult err = GR_VK_CALL(gpu->vkInterface(), CreateGraphicsPipelines(gpu->device(),
    562                                                                           cache, 1,
    563                                                                           &pipelineCreateInfo,
    564                                                                           nullptr, &vkPipeline));
    565     if (err) {
    566         SkDebugf("Failed to create pipeline. Error: %d\n", err);
    567         return nullptr;
    568     }
    569 
    570     return new GrVkPipeline(vkPipeline);
    571 }
    572 
    573 void GrVkPipeline::freeGPUData(GrVkGpu* gpu) const {
    574     GR_VK_CALL(gpu->vkInterface(), DestroyPipeline(gpu->device(), fPipeline, nullptr));
    575 }
    576 
    577 void GrVkPipeline::SetDynamicScissorRectState(GrVkGpu* gpu,
    578                                               GrVkCommandBuffer* cmdBuffer,
    579                                               const GrRenderTarget* renderTarget,
    580                                               GrSurfaceOrigin rtOrigin,
    581                                               SkIRect scissorRect) {
    582     if (!scissorRect.intersect(SkIRect::MakeWH(renderTarget->width(), renderTarget->height()))) {
    583         scissorRect.setEmpty();
    584     }
    585 
    586     VkRect2D scissor;
    587     scissor.offset.x = scissorRect.fLeft;
    588     scissor.extent.width = scissorRect.width();
    589     if (kTopLeft_GrSurfaceOrigin == rtOrigin) {
    590         scissor.offset.y = scissorRect.fTop;
    591     } else {
    592         SkASSERT(kBottomLeft_GrSurfaceOrigin == rtOrigin);
    593         scissor.offset.y = renderTarget->height() - scissorRect.fBottom;
    594     }
    595     scissor.extent.height = scissorRect.height();
    596 
    597     SkASSERT(scissor.offset.x >= 0);
    598     SkASSERT(scissor.offset.y >= 0);
    599     cmdBuffer->setScissor(gpu, 0, 1, &scissor);
    600 }
    601 
    602 void GrVkPipeline::SetDynamicViewportState(GrVkGpu* gpu,
    603                                            GrVkCommandBuffer* cmdBuffer,
    604                                            const GrRenderTarget* renderTarget) {
    605     // We always use one viewport the size of the RT
    606     VkViewport viewport;
    607     viewport.x = 0.0f;
    608     viewport.y = 0.0f;
    609     viewport.width = SkIntToScalar(renderTarget->width());
    610     viewport.height = SkIntToScalar(renderTarget->height());
    611     viewport.minDepth = 0.0f;
    612     viewport.maxDepth = 1.0f;
    613     cmdBuffer->setViewport(gpu, 0, 1, &viewport);
    614 }
    615 
    616 void GrVkPipeline::SetDynamicBlendConstantState(GrVkGpu* gpu,
    617                                                 GrVkCommandBuffer* cmdBuffer,
    618                                                 GrPixelConfig pixelConfig,
    619                                                 const GrXferProcessor& xferProcessor) {
    620     GrXferProcessor::BlendInfo blendInfo;
    621     xferProcessor.getBlendInfo(&blendInfo);
    622     GrBlendCoeff srcCoeff = blendInfo.fSrcBlend;
    623     GrBlendCoeff dstCoeff = blendInfo.fDstBlend;
    624     float floatColors[4];
    625     if (blend_coeff_refs_constant(srcCoeff) || blend_coeff_refs_constant(dstCoeff)) {
    626         // Swizzle the blend to match what the shader will output.
    627         const GrSwizzle& swizzle = gpu->caps()->shaderCaps()->configOutputSwizzle(pixelConfig);
    628         SkPMColor4f blendConst = swizzle.applyTo(blendInfo.fBlendConstant);
    629         floatColors[0] = blendConst.fR;
    630         floatColors[1] = blendConst.fG;
    631         floatColors[2] = blendConst.fB;
    632         floatColors[3] = blendConst.fA;
    633     } else {
    634         memset(floatColors, 0, 4 * sizeof(float));
    635     }
    636     cmdBuffer->setBlendConstants(gpu, floatColors);
    637 }
    638