Add vulkan files into skia repo.

src/gpu/vk/GrVkProgram.cpp

Index: src/gpu/vk/GrVkProgram.cpp
diff --git a/src/gpu/vk/GrVkProgram.cpp b/src/gpu/vk/GrVkProgram.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..7cccc7c46db85e7701aec2ea4e320b73ae0b502b
--- /dev/null
+++ b/src/gpu/vk/GrVkProgram.cpp
@@ -0,0 +1,367 @@
+/*
+* Copyright 2016 Google Inc.
+*
+* Use of this source code is governed by a BSD-style license that can be
+* found in the LICENSE file.
+*/
+
+#include "GrVkProgram.h"
+
+#include "GrPipeline.h"
+#include "GrVkCommandBuffer.h"
+#include "GrVkDescriptorPool.h"
+#include "GrVkGpu.h"
+#include "GrVkImageView.h"
+#include "GrVkMemory.h"
+#include "GrVkPipeline.h"
+#include "GrVkSampler.h"
+#include "GrVkTexture.h"
+#include "GrVkUniformBuffer.h"
+#include "glsl/GrGLSLFragmentProcessor.h"
+#include "glsl/GrGLSLGeometryProcessor.h"
+#include "glsl/GrGLSLXferProcessor.h"
+
+GrVkProgram::GrVkProgram(GrVkGpu* gpu,
+                         GrVkPipeline* pipeline,
+                         VkPipelineLayout layout,
+                         VkDescriptorSetLayout dsLayout[2],
+                         GrVkDescriptorPool* descriptorPool,
+                         VkDescriptorSet descriptorSets[2],
+                         const BuiltinUniformHandles& builtinUniformHandles,
+                         const UniformInfoArray& uniforms,
+                         uint32_t vertexUniformSize,
+                         uint32_t fragmentUniformSize,
+                         uint32_t numSamplers,
+                         GrGLSLPrimitiveProcessor* geometryProcessor,
+                         GrGLSLXferProcessor* xferProcessor,
+                         const GrGLSLFragProcs& fragmentProcessors)
+    : fDescriptorPool(descriptorPool)
+    , fPipeline(pipeline)
+    , fPipelineLayout(layout)
+    , fBuiltinUniformHandles(builtinUniformHandles)
+    , fGeometryProcessor(geometryProcessor)
+    , fXferProcessor(xferProcessor)
+    , fFragmentProcessors(fragmentProcessors)
+    , fProgramDataManager(uniforms, vertexUniformSize, fragmentUniformSize) {
+    fSamplers.setReserve(numSamplers);
+    fTextureViews.setReserve(numSamplers);
+    fTextures.setReserve(numSamplers);
+
+    memcpy(fDSLayout, dsLayout, 2 * sizeof(VkDescriptorSetLayout));
+    memcpy(fDescriptorSets, descriptorSets, 2 * sizeof(VkDescriptorSetLayout));
+
+    fVertexUniformBuffer.reset(GrVkUniformBuffer::Create(gpu, vertexUniformSize, true));
+    fFragmentUniformBuffer.reset(GrVkUniformBuffer::Create(gpu, fragmentUniformSize, true));
+
+#ifdef SK_DEBUG
+    fNumSamplers = numSamplers;
+#endif
+}
+
+GrVkProgram::~GrVkProgram() {
+    // Must of freed all GPU resources before this is destroyed
+    SkASSERT(!fPipeline);
+    SkASSERT(!fDescriptorPool);
+    SkASSERT(!fPipelineLayout);
+    SkASSERT(!fDSLayout[0]);
+    SkASSERT(!fDSLayout[1]);
+    SkASSERT(!fSamplers.count());
+    SkASSERT(!fTextureViews.count());
+    SkASSERT(!fTextures.count());
+}
+
+void GrVkProgram::freeTempResources(const GrVkGpu* gpu) {
+    for (int i = 0; i < fSamplers.count(); ++i) {
+        fSamplers[i]->unref(gpu);
+    }
+    fSamplers.rewind();
+
+    for (int i = 0; i < fTextureViews.count(); ++i) {
+            fTextureViews[i]->unref(gpu);
+    }
+    fTextureViews.rewind();
+
+    for (int i = 0; i < fTextures.count(); ++i) {
+            fTextures[i]->unref(gpu);
+    }
+    fTextures.rewind();
+}
+
+void GrVkProgram::freeGPUResources(const GrVkGpu* gpu) {
+    if (fPipeline) {
+        fPipeline->unref(gpu);
+        fPipeline = nullptr;
+    }
+    if (fDescriptorPool) {
+        fDescriptorPool->unref(gpu);
+        fDescriptorPool = nullptr;
+    }
+    if (fPipelineLayout) {
+        GR_VK_CALL(gpu->vkInterface(), DestroyPipelineLayout(gpu->device(),
+                                                             fPipelineLayout,
+                                                             nullptr));
+        fPipelineLayout = nullptr;
+    }
+
+    if (fDSLayout[0]) {
+        GR_VK_CALL(gpu->vkInterface(), DestroyDescriptorSetLayout(gpu->device(), fDSLayout[0],
+                                                                  nullptr));
+        fDSLayout[0] = nullptr;
+    }
+    if (fDSLayout[1]) {
+        GR_VK_CALL(gpu->vkInterface(), DestroyDescriptorSetLayout(gpu->device(), fDSLayout[1],
+                                                                  nullptr));
+        fDSLayout[1] = nullptr;
+    }
+
+    if (fVertexUniformBuffer) {
+        fVertexUniformBuffer->release(gpu);
+    }
+
+    if (fFragmentUniformBuffer) {
+        fFragmentUniformBuffer->release(gpu);
+    }
+    this->freeTempResources(gpu);
+}
+
+void GrVkProgram::abandonGPUResources() {
+    fPipeline->unrefAndAbandon();
+    fPipeline = nullptr;
+    fDescriptorPool->unrefAndAbandon();
+    fDescriptorPool = nullptr;
+    fPipelineLayout = nullptr;
+    fDSLayout[0] = nullptr;
+    fDSLayout[1] = nullptr;
+
+    fVertexUniformBuffer->abandon();
+    fFragmentUniformBuffer->abandon();
+
+    for (int i = 0; i < fSamplers.count(); ++i) {
+        fSamplers[i]->unrefAndAbandon();
+    }
+    fSamplers.rewind();
+
+    for (int i = 0; i < fTextureViews.count(); ++i) {
+        fTextureViews[i]->unrefAndAbandon();
+    }
+    fTextureViews.rewind();
+
+    for (int i = 0; i < fTextures.count(); ++i) {
+        fTextures[i]->unrefAndAbandon();
+    }
+    fTextures.rewind();
+}
+
+static void append_texture_bindings(const GrProcessor& processor,
+                                    SkTArray<const GrTextureAccess*>* textureBindings) {
+    if (int numTextures = processor.numTextures()) {
+        const GrTextureAccess** bindings = textureBindings->push_back_n(numTextures);
+        int i = 0;
+        do {
+            bindings[i] = &processor.textureAccess(i);
+        } while (++i < numTextures);
+    }
+}
+
+void GrVkProgram::setData(const GrVkGpu* gpu,
+                          const GrPrimitiveProcessor& primProc,
+                          const GrPipeline& pipeline) {
+    // This is here to protect against someone calling setData multiple times in a row without
+    // freeing the tempData between calls.
+    this->freeTempResources(gpu);
+
+    this->setRenderTargetState(pipeline);
+
+    SkSTArray<8, const GrTextureAccess*> textureBindings;
+
+    fGeometryProcessor->setData(fProgramDataManager, primProc);
+    append_texture_bindings(primProc, &textureBindings);
+
+    for (int i = 0; i < fFragmentProcessors.count(); ++i) {
+        const GrFragmentProcessor& processor = pipeline.getFragmentProcessor(i);
+        fFragmentProcessors[i]->setData(fProgramDataManager, processor);
+        fGeometryProcessor->setTransformData(primProc, fProgramDataManager, i,
+                                             processor.coordTransforms());
+        append_texture_bindings(processor, &textureBindings);
+    }
+
+    fXferProcessor->setData(fProgramDataManager, pipeline.getXferProcessor());
+    append_texture_bindings(pipeline.getXferProcessor(), &textureBindings);
+
+    this->writeUniformBuffers(gpu);
+
+    this->writeSamplers(gpu, textureBindings);
+}
+
+void GrVkProgram::writeUniformBuffers(const GrVkGpu* gpu) {
+    fProgramDataManager.uploadUniformBuffers(gpu, fVertexUniformBuffer, fFragmentUniformBuffer);
+
+    VkWriteDescriptorSet descriptorWrites[2];
+    memset(descriptorWrites, 0, 2 * sizeof(VkWriteDescriptorSet));
+
+    uint32_t firstUniformWrite = 0;
+    uint32_t uniformBindingUpdateCount = 0;
+
+    // Vertex Uniform Buffer
+    if (fVertexUniformBuffer.get()) {
+        ++uniformBindingUpdateCount;
+        VkDescriptorBufferInfo vertBufferInfo;
+        memset(&vertBufferInfo, 0, sizeof(VkDescriptorBufferInfo));
+        vertBufferInfo.buffer = fVertexUniformBuffer->buffer();
+        vertBufferInfo.offset = 0;
+        vertBufferInfo.range = fVertexUniformBuffer->size();
+
+        descriptorWrites[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
+        descriptorWrites[0].pNext = nullptr;
+        descriptorWrites[0].dstSet = fDescriptorSets[1];
+        descriptorWrites[0].dstBinding = GrVkUniformHandler::kVertexBinding;
+        descriptorWrites[0].dstArrayElement = 0;
+        descriptorWrites[0].descriptorCount = 1;
+        descriptorWrites[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
+        descriptorWrites[0].pImageInfo = nullptr;
+        descriptorWrites[0].pBufferInfo = &vertBufferInfo;
+        descriptorWrites[0].pTexelBufferView = nullptr;
+    }
+
+    // Fragment Uniform Buffer
+    if (fFragmentUniformBuffer.get()) {
+        if (0 == uniformBindingUpdateCount) {
+            firstUniformWrite = 1;
+        }
+        ++uniformBindingUpdateCount;
+        VkDescriptorBufferInfo fragBufferInfo;
+        memset(&fragBufferInfo, 0, sizeof(VkDescriptorBufferInfo));
+        fragBufferInfo.buffer = fFragmentUniformBuffer->buffer();
+        fragBufferInfo.offset = 0;
+        fragBufferInfo.range = fFragmentUniformBuffer->size();
+
+        descriptorWrites[1].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
+        descriptorWrites[1].pNext = nullptr;
+        descriptorWrites[1].dstSet = fDescriptorSets[1];
+        descriptorWrites[1].dstBinding = GrVkUniformHandler::kFragBinding;;
+        descriptorWrites[1].dstArrayElement = 0;
+        descriptorWrites[1].descriptorCount = 1;
+        descriptorWrites[1].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
+        descriptorWrites[1].pImageInfo = nullptr;
+        descriptorWrites[1].pBufferInfo = &fragBufferInfo;
+        descriptorWrites[1].pTexelBufferView = nullptr;
+    }
+
+    if (uniformBindingUpdateCount) {
+        GR_VK_CALL(gpu->vkInterface(), UpdateDescriptorSets(gpu->device(),
+                                                            uniformBindingUpdateCount,
+                                                            &descriptorWrites[firstUniformWrite],
+                                                            0, nullptr));
+    }
+}
+
+void GrVkProgram::writeSamplers(const GrVkGpu* gpu,
+                                const SkTArray<const GrTextureAccess*>& textureBindings) {
+    SkASSERT(fNumSamplers == textureBindings.count());
+
+    for (int i = 0; i < textureBindings.count(); ++i) {
+        fSamplers.push(GrVkSampler::Create(gpu, *textureBindings[i]));
+
+        GrVkTexture* texture = static_cast<GrVkTexture*>(textureBindings[i]->getTexture());
+
+        const GrVkImage::Resource* textureResource = texture->resource();
+        textureResource->ref();
+        fTextures.push(textureResource);
+
+        const GrVkImageView* textureView = texture->textureView();
+        textureView->ref();
+        fTextureViews.push(textureView);
+
+        // Change texture layout so it can be read in shader
+        VkImageLayout layout = texture->currentLayout();
+        VkPipelineStageFlags srcStageMask = GrVkMemory::LayoutToPipelineStageFlags(layout);
+        VkPipelineStageFlags dstStageMask = VK_PIPELINE_STAGE_ALL_GRAPHICS_BIT;
+        VkAccessFlags srcAccessMask = GrVkMemory::LayoutToSrcAccessMask(layout);
+        VkAccessFlags dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
+        texture->setImageLayout(gpu,
+                                VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
+                                srcAccessMask,
+                                dstAccessMask,
+                                srcStageMask,
+                                dstStageMask,
+                                false);
+
+        VkDescriptorImageInfo imageInfo;
+        memset(&imageInfo, 0, sizeof(VkDescriptorImageInfo));
+        imageInfo.sampler = fSamplers[i]->sampler();
+        imageInfo.imageView = texture->textureView()->imageView();
+        imageInfo.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
+
+        VkWriteDescriptorSet writeInfo;
+        memset(&writeInfo, 0, sizeof(VkWriteDescriptorSet));
+        writeInfo.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
+        writeInfo.pNext = nullptr;
+        writeInfo.dstSet = fDescriptorSets[GrVkUniformHandler::kSamplerDescSet];
+        writeInfo.dstBinding = i;
+        writeInfo.dstArrayElement = 0;
+        writeInfo.descriptorCount = 1;
+        writeInfo.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
+        writeInfo.pImageInfo = &imageInfo;
+        writeInfo.pBufferInfo = nullptr;
+        writeInfo.pTexelBufferView = nullptr;
+
+        GR_VK_CALL(gpu->vkInterface(), UpdateDescriptorSets(gpu->device(),
+                                                            1,
+                                                            &writeInfo,
+                                                            0,
+                                                            nullptr));
+    }
+}
+
+void GrVkProgram::setRenderTargetState(const GrPipeline& pipeline) {
+    // Load the RT height uniform if it is needed to y-flip gl_FragCoord.
+    if (fBuiltinUniformHandles.fRTHeightUni.isValid() &&
+        fRenderTargetState.fRenderTargetSize.fHeight != pipeline.getRenderTarget()->height()) {
+        fProgramDataManager.set1f(fBuiltinUniformHandles.fRTHeightUni,
+                                  SkIntToScalar(pipeline.getRenderTarget()->height()));
+    }
+
+    // set RT adjustment
+    const GrRenderTarget* rt = pipeline.getRenderTarget();
+    SkISize size;
+    size.set(rt->width(), rt->height());
+    SkASSERT(fBuiltinUniformHandles.fRTAdjustmentUni.isValid());
+    if (fRenderTargetState.fRenderTargetOrigin != rt->origin() ||
+        fRenderTargetState.fRenderTargetSize != size) {
+        fRenderTargetState.fRenderTargetSize = size;
+        fRenderTargetState.fRenderTargetOrigin = rt->origin();
+
+        float rtAdjustmentVec[4];
+        fRenderTargetState.getRTAdjustmentVec(rtAdjustmentVec);
+        fProgramDataManager.set4fv(fBuiltinUniformHandles.fRTAdjustmentUni, 1, rtAdjustmentVec);
+    }
+}
+
+void GrVkProgram::bind(const GrVkGpu* gpu, GrVkCommandBuffer* commandBuffer) {
+    commandBuffer->bindPipeline(gpu, fPipeline);
+    commandBuffer->bindDescriptorSets(gpu, this, fPipelineLayout, 0, 2, fDescriptorSets, 0,
+                                      nullptr);
+}
+
+void GrVkProgram::addUniformResources(GrVkCommandBuffer& commandBuffer) {
+#if 1
+    commandBuffer.addResource(fDescriptorPool);
+    if (fVertexUniformBuffer.get()) {
+        commandBuffer.addResource(fVertexUniformBuffer->resource());
+    }
+    if (fFragmentUniformBuffer.get()) {
+        commandBuffer.addResource(fFragmentUniformBuffer->resource());
+    }
+    for (int i = 0; i < fSamplers.count(); ++i) {
+        commandBuffer.addResource(fSamplers[i]);
+    }
+
+    for (int i = 0; i < fTextureViews.count(); ++i) {
+        commandBuffer.addResource(fTextureViews[i]);
+    }
+
+    for (int i = 0; i < fTextures.count(); ++i) {
+        commandBuffer.addResource(fTextures[i]);
+    }
+#endif
+}