Start using GrGpuCommandBuffer in GrDrawTarget.

src/gpu/vk/GrVkGpuCommandBuffer.cpp

 /*
 * 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 "GrVkGpuCommandBuffer.h"
 
+#include "GrMesh.h"
+#include "GrPipeline.h"
+#include "GrRenderTargetPriv.h"
+#include "GrTextureAccess.h"
+#include "GrTexturePriv.h"
 #include "GrVkCommandBuffer.h"
 #include "GrVkGpu.h"
+#include "GrVkPipeline.h"
 #include "GrVkRenderPass.h"
 #include "GrVkRenderTarget.h"
 #include "GrVkResourceProvider.h"
+#include "GrVkTexture.h"
 
-void get_vk_load_store_ops(GrGpuCommandBuffer::LoadAndStoreOp op,
+void get_vk_load_store_ops(const GrGpuCommandBuffer::LoadAndStoreInfo& info,
                            VkAttachmentLoadOp* loadOp, VkAttachmentStoreOp* storeOp) {
-    switch (op) {
-        case GrGpuCommandBuffer::kLoadAndStore_LoadAndStoreOp:
+    switch (info.fLoadOp) {
+        case GrGpuCommandBuffer::kLoad_LoadOp:
             *loadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
+            break;
+        case GrGpuCommandBuffer::kClear_LoadOp:
+            *loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
+            break;
+        case GrGpuCommandBuffer::kDiscard_LoadOp:
+            *loadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
+            break;
+        default:
+            SK_ABORT("Invalid LoadOp");
+            *loadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
+    }
+
+    switch (info.fStoreOp) {
+        case GrGpuCommandBuffer::kStore_StoreOp:
             *storeOp = VK_ATTACHMENT_STORE_OP_STORE;
             break;
-        case GrGpuCommandBuffer::kLoadAndDiscard_LoadAndStoreOp:
-            *loadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
-            *storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
-            break;
-        case GrGpuCommandBuffer::kClearAndStore_LoadAndStoreOp:
-            *loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
-            *storeOp = VK_ATTACHMENT_STORE_OP_STORE;
-            break;
-        case GrGpuCommandBuffer::kClearAndDiscard_LoadAndStoreOp:
-            *loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
-            *storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
-            break;
-        case GrGpuCommandBuffer::kDiscardAndStore_LoadAndStoreOp:
-            *loadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
-            *storeOp = VK_ATTACHMENT_STORE_OP_STORE;
-            break;
-        case GrGpuCommandBuffer::kDiscardAndDiscard_LoadAndStoreOp:
-            *loadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
+        case GrGpuCommandBuffer::kDiscard_StoreOp:
             *storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
             break;
         default:
-            SK_ABORT("Invalid LoadAndStoreOp");
-            *loadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
+            SK_ABORT("Invalid StoreOp");
             *storeOp = VK_ATTACHMENT_STORE_OP_STORE;
-            break;
     }
 }
 
 GrVkGpuCommandBuffer::GrVkGpuCommandBuffer(GrVkGpu* gpu,
-                                           const GrVkRenderTarget& target,
-                                           LoadAndStoreOp colorOp, GrColor colorClear,
-                                           LoadAndStoreOp stencilOp, GrColor stencilClear)
-    : fGpu(gpu) {
+                                           GrVkRenderTarget* target,
+                                           const LoadAndStoreInfo& colorInfo,
+                                           const LoadAndStoreInfo& stencilInfo)
+    : fGpu(gpu)
+    , fRenderTarget(target)
+    , fIsEmpty(true) {
     VkAttachmentLoadOp vkLoadOp;
     VkAttachmentStoreOp vkStoreOp;
 
-    get_vk_load_store_ops(colorOp, &vkLoadOp, &vkStoreOp);
+    get_vk_load_store_ops(colorInfo, &vkLoadOp, &vkStoreOp);
     GrVkRenderPass::LoadStoreOps vkColorOps(vkLoadOp, vkStoreOp);
 
-    get_vk_load_store_ops(stencilOp, &vkLoadOp, &vkStoreOp);
+    get_vk_load_store_ops(stencilInfo, &vkLoadOp, &vkStoreOp);
     GrVkRenderPass::LoadStoreOps vkStencilOps(vkLoadOp, vkStoreOp);
     
     GrVkRenderPass::LoadStoreOps vkResolveOps(VK_ATTACHMENT_LOAD_OP_LOAD,
                                               VK_ATTACHMENT_STORE_OP_STORE);
 
-    const GrVkResourceProvider::CompatibleRPHandle& rpHandle = target.compatibleRenderPassHandle();
+    const GrVkResourceProvider::CompatibleRPHandle& rpHandle = target->compatibleRenderPassHandle();
     if (rpHandle.isValid()) {
         fRenderPass = fGpu->resourceProvider().findRenderPass(rpHandle,
                                                               vkColorOps,
                                                               vkResolveOps,
                                                               vkStencilOps);
     } else {
-        fRenderPass = fGpu->resourceProvider().findRenderPass(target,
+        fRenderPass = fGpu->resourceProvider().findRenderPass(*target,
                                                               vkColorOps,
                                                               vkResolveOps,
                                                               vkStencilOps);
     }
 
+    GrColorToRGBAFloat(colorInfo.fClearColor, fColorClearValue.color.float32);
+
     fCommandBuffer = GrVkSecondaryCommandBuffer::Create(gpu, gpu->cmdPool(), fRenderPass);
-    fCommandBuffer->begin(gpu, target.framebuffer());
+    fCommandBuffer->begin(gpu, target->framebuffer());
 }
 
 GrVkGpuCommandBuffer::~GrVkGpuCommandBuffer() {
     fCommandBuffer->unref(fGpu);
     fRenderPass->unref(fGpu);
 }
 
+GrGpu* GrVkGpuCommandBuffer::gpu() { return fGpu; }
+
 void GrVkGpuCommandBuffer::end() {
     fCommandBuffer->end(fGpu);
 }
 
-void GrVkGpuCommandBuffer::submit() {
-    fGpu->submitSecondaryCommandBuffer(fCommandBuffer);
-}
-
+void GrVkGpuCommandBuffer::onSubmit(const SkIRect& bounds) {
+    // Change layout of our render target so it can be used as the color attachment
+    fRenderTarget->setImageLayout(fGpu,
+                                  VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
+                                  VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
+                                  VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
+                                  false);
+
+    // If we are using a stencil attachment we also need to update its layout
+    if (GrStencilAttachment* stencil = fRenderTarget->renderTargetPriv().getStencilAttachment()) {
+        GrVkStencilAttachment* vkStencil = (GrVkStencilAttachment*)stencil;
+        vkStencil->setImageLayout(fGpu,
+                                  VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
+                                  VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT |
+                                  VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_READ_BIT,
+                                  VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
+                                  false);
+    }
+
+    for (int i = 0; i < fSampledImages.count(); ++i) {
+        fSampledImages[i]->setImageLayout(fGpu,
+                                          VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
+                                          VK_ACCESS_SHADER_READ_BIT,
+                                          VK_PIPELINE_STAGE_ALL_GRAPHICS_BIT,
+                                          false);
+    }
+
+    fGpu->submitSecondaryCommandBuffer(fCommandBuffer, fRenderPass, &fColorClearValue,
+                                       fRenderTarget, bounds);
+}
+
+void GrVkGpuCommandBuffer::onClearStencilClip(GrRenderTarget* target,
+                                              const SkIRect& rect,
+                                              bool insideClip) {
+    SkASSERT(target);
+
+    GrVkRenderTarget* vkRT = static_cast<GrVkRenderTarget*>(target);
+    GrStencilAttachment* sb = target->renderTargetPriv().getStencilAttachment();
+    // this should only be called internally when we know we have a
+    // stencil buffer.
+    SkASSERT(sb);
+    int stencilBitCount = sb->bits();
+
+    // The contract with the callers does not guarantee that we preserve all bits in the stencil
+    // during this clear. Thus we will clear the entire stencil to the desired value.
+
+    VkClearDepthStencilValue vkStencilColor;
+    memset(&vkStencilColor, 0, sizeof(VkClearDepthStencilValue));
+    if (insideClip) {
+        vkStencilColor.stencil = (1 << (stencilBitCount - 1));
+    } else {
+        vkStencilColor.stencil = 0;
+    }
+
+    VkClearRect clearRect;
+    // Flip rect if necessary
+    SkIRect vkRect = rect;
+
+    if (kBottomLeft_GrSurfaceOrigin == vkRT->origin()) {
+        vkRect.fTop = vkRT->height() - rect.fBottom;
+        vkRect.fBottom = vkRT->height() - rect.fTop;
+    }
+
+    clearRect.rect.offset = { vkRect.fLeft, vkRect.fTop };
+    clearRect.rect.extent = { (uint32_t)vkRect.width(), (uint32_t)vkRect.height() };
+
+    clearRect.baseArrayLayer = 0;
+    clearRect.layerCount = 1;
+
+    uint32_t stencilIndex;
+    SkAssertResult(fRenderPass->stencilAttachmentIndex(&stencilIndex));
+
+    VkClearAttachment attachment;
+    attachment.aspectMask = VK_IMAGE_ASPECT_STENCIL_BIT;
+    attachment.colorAttachment = 0; // this value shouldn't matter
+    attachment.clearValue.depthStencil = vkStencilColor;
+
+    fCommandBuffer->clearAttachments(fGpu, 1, &attachment, 1, &clearRect);
+    fIsEmpty = false;
+}
+
+void GrVkGpuCommandBuffer::onClear(GrRenderTarget* target, const SkIRect& rect, GrColor color) {
+    // parent class should never let us get here with no RT
+    SkASSERT(target);
+
+    VkClearColorValue vkColor;
+    GrColorToRGBAFloat(color, vkColor.float32);
+
+    GrVkRenderTarget* vkRT = static_cast<GrVkRenderTarget*>(target);
+
+    if (fIsEmpty) {
+        // We will change the render pass to do a clear load instead
+        GrVkRenderPass::LoadStoreOps vkColorOps(VK_ATTACHMENT_LOAD_OP_CLEAR,
+                                                VK_ATTACHMENT_STORE_OP_STORE);
+        GrVkRenderPass::LoadStoreOps vkStencilOps(VK_ATTACHMENT_LOAD_OP_LOAD,
+                                                  VK_ATTACHMENT_STORE_OP_STORE);
+        GrVkRenderPass::LoadStoreOps vkResolveOps(VK_ATTACHMENT_LOAD_OP_LOAD,
+                                                  VK_ATTACHMENT_STORE_OP_STORE);
+
+        const GrVkRenderPass* oldRP = fRenderPass;
+
+        const GrVkResourceProvider::CompatibleRPHandle& rpHandle =
+            vkRT->compatibleRenderPassHandle();
+        if (rpHandle.isValid()) {
+            fRenderPass = fGpu->resourceProvider().findRenderPass(rpHandle,
+                                                                  vkColorOps,
+                                                                  vkResolveOps,
+                                                                  vkStencilOps);
+        } else {
+            fRenderPass = fGpu->resourceProvider().findRenderPass(*vkRT,
+                                                                  vkColorOps,
+                                                                  vkResolveOps,
+                                                                  vkStencilOps);
+        }
+
+        SkASSERT(fRenderPass->isCompatible(*oldRP));
+        oldRP->unref(fGpu);
+
+        GrColorToRGBAFloat(color, fColorClearValue.color.float32);
+        return;
+    }
+
+    // We always do a sub rect clear with clearAttachments since we are inside a render pass
+    VkClearRect clearRect;
+    // Flip rect if necessary
+    SkIRect vkRect = rect;
+    if (kBottomLeft_GrSurfaceOrigin == vkRT->origin()) {
+        vkRect.fTop = vkRT->height() - rect.fBottom;
+        vkRect.fBottom = vkRT->height() - rect.fTop;
+    }
+    clearRect.rect.offset = { vkRect.fLeft, vkRect.fTop };
+    clearRect.rect.extent = { (uint32_t)vkRect.width(), (uint32_t)vkRect.height() };
+    clearRect.baseArrayLayer = 0;
+    clearRect.layerCount = 1;
+
+    uint32_t colorIndex;
+    SkAssertResult(fRenderPass->colorAttachmentIndex(&colorIndex));
+
+    VkClearAttachment attachment;
+    attachment.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
+    attachment.colorAttachment = colorIndex;
+    attachment.clearValue.color = vkColor;
+
+    fCommandBuffer->clearAttachments(fGpu, 1, &attachment, 1, &clearRect);
+    fIsEmpty = false;
+    return;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+void GrVkGpuCommandBuffer::bindGeometry(const GrPrimitiveProcessor& primProc,
+                                        const GrNonInstancedMesh& mesh) {
+    // There is no need to put any memory barriers to make sure host writes have finished here.
+    // When a command buffer is submitted to a queue, there is an implicit memory barrier that
+    // occurs for all host writes. Additionally, BufferMemoryBarriers are not allowed inside of
+    // an active RenderPass.
+    GrVkVertexBuffer* vbuf;
+    vbuf = (GrVkVertexBuffer*)mesh.vertexBuffer();
+    SkASSERT(vbuf);
+    SkASSERT(!vbuf->isMapped());
+
+    fCommandBuffer->bindVertexBuffer(fGpu, vbuf);
+
+    if (mesh.isIndexed()) {
+        GrVkIndexBuffer* ibuf = (GrVkIndexBuffer*)mesh.indexBuffer();
+        SkASSERT(ibuf);
+        SkASSERT(!ibuf->isMapped());
+
+        fCommandBuffer->bindIndexBuffer(fGpu, ibuf);
+    }
+}
+
+sk_sp<GrVkPipelineState> GrVkGpuCommandBuffer::prepareDrawState(
+                                                               const GrPipeline& pipeline,
+                                                               const GrPrimitiveProcessor& primProc,
+                                                               GrPrimitiveType primitiveType,
+                                                               const GrVkRenderPass& renderPass) {
+    sk_sp<GrVkPipelineState> pipelineState =
+        fGpu->resourceProvider().findOrCreateCompatiblePipelineState(pipeline,
+                                                                     primProc,
+                                                                     primitiveType,
+                                                                     renderPass);
+    if (!pipelineState) {
+        return pipelineState;
+    }
+
+    pipelineState->setData(fGpu, primProc, pipeline);
+
+    pipelineState->bind(fGpu, fCommandBuffer);
+
+    GrVkPipeline::SetDynamicState(fGpu, fCommandBuffer, pipeline);
+
+    return pipelineState;
+}
+
+static void append_sampled_images(const GrProcessor& processor,
+                                  const GrVkGpu* gpu,
+                                  SkTArray<GrVkImage*>* sampledImages) {
+    if (int numTextures = processor.numTextures()) {
+        GrVkImage** images = sampledImages->push_back_n(numTextures);
+        int i = 0;
+        do {
+            const GrTextureAccess& texAccess = processor.textureAccess(i);
+            GrVkTexture* vkTexture = static_cast<GrVkTexture*>(processor.texture(i));
+            SkASSERT(vkTexture);
+            const GrTextureParams& params = texAccess.getParams();
+            // Check if we need to regenerate any mip maps
+            if (GrTextureParams::kMipMap_FilterMode == params.filterMode()) {
+                if (vkTexture->texturePriv().mipMapsAreDirty()) {
+                    gpu->generateMipmap(vkTexture);
+                    vkTexture->texturePriv().dirtyMipMaps(false);
+                }
+            }
+
+            images[i] = vkTexture;
+        } while (++i < numTextures);
+
+    }
+}
+
+void GrVkGpuCommandBuffer::onDraw(const GrPipeline& pipeline,
+                                  const GrPrimitiveProcessor& primProc,
+                                  const GrMesh* meshes,
+                                  int meshCount) {
+    if (!meshCount) {
+        return;
+    }
+    GrRenderTarget* rt = pipeline.getRenderTarget();
+    GrVkRenderTarget* vkRT = static_cast<GrVkRenderTarget*>(rt);
+    const GrVkRenderPass* renderPass = vkRT->simpleRenderPass();
+    SkASSERT(renderPass);
+
+    GrPrimitiveType primitiveType = meshes[0].primitiveType();
+    sk_sp<GrVkPipelineState> pipelineState = this->prepareDrawState(pipeline,
+                                                                    primProc,
+                                                                    primitiveType,
+                                                                    *renderPass);
+    if (!pipelineState) {
+        return;
+    }
+
+    append_sampled_images(primProc, fGpu, &fSampledImages);
+    for (int i = 0; i < pipeline.numFragmentProcessors(); ++i) {
+        append_sampled_images(pipeline.getFragmentProcessor(i), fGpu, &fSampledImages);
+    }
+    append_sampled_images(pipeline.getXferProcessor(), fGpu, &fSampledImages);
+
+    for (int i = 0; i < meshCount; ++i) {
+        const GrMesh& mesh = meshes[i];
+        GrMesh::Iterator iter;
+        const GrNonInstancedMesh* nonIdxMesh = iter.init(mesh);
+        do {
+            if (nonIdxMesh->primitiveType() != primitiveType) {
+                // Technically we don't have to call this here (since there is a safety check in
+                // pipelineState:setData but this will allow for quicker freeing of resources if the
+                // pipelineState sits in a cache for a while.
+                pipelineState->freeTempResources(fGpu);
+                SkDEBUGCODE(pipelineState = nullptr);
+                primitiveType = nonIdxMesh->primitiveType();
+                pipelineState = this->prepareDrawState(pipeline,
+                                                       primProc,
+                                                       primitiveType,
+                                                       *renderPass);
+                if (!pipelineState) {
+                    return;
+                }
+            }
+            SkASSERT(pipelineState);
+            this->bindGeometry(primProc, *nonIdxMesh);
+
+            if (nonIdxMesh->isIndexed()) {
+                fCommandBuffer->drawIndexed(fGpu,
+                                            nonIdxMesh->indexCount(),
+                                            1,
+                                            nonIdxMesh->startIndex(),
+                                            nonIdxMesh->startVertex(),
+                                            0);
+            } else {
+                fCommandBuffer->draw(fGpu,
+                                     nonIdxMesh->vertexCount(),
+                                     1,
+                                     nonIdxMesh->startVertex(),
+                                     0);
+            }
+            fIsEmpty = false;
+
+            fGpu->stats()->incNumDraws();
+        } while ((nonIdxMesh = iter.next()));
+    }
+
+    // Technically we don't have to call this here (since there is a safety check in
+    // pipelineState:setData but this will allow for quicker freeing of resources if the
+    // pipelineState sits in a cache for a while.
+    pipelineState->freeTempResources(fGpu);
+}
+