commit 2feb0938dcf223da3641daf15f5d525db88a6967
author egdaniel <egdaniel@google.com> Wed Jun 08 06:48:09 2016 -0700
committer Commit bot <commit-bot@chromium.org> Wed Jun 08 06:48:10 2016 -0700
tree 1d62a546adbe261f1d4bf61bf8310c712fdfc7cb
parent dae6b97705fde08958b1a36fa6ce685d28fc692c

Add support for finding/creating general GrVkRenderPass from the VkResourceProvider.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2035853002

Review-Url: https://codereview.chromium.org/2035853002

src/gpu/vk/GrVkResourceProvider.cpp

diff --git a/src/gpu/vk/GrVkResourceProvider.cpp b/src/gpu/vk/GrVkResourceProvider.cpp
index fdc9e90..cd3ba47 100644
--- a/src/gpu/vk/GrVkResourceProvider.cpp
+++ b/src/gpu/vk/GrVkResourceProvider.cpp
@@ -10,7 +10,6 @@
 #include "GrTextureParams.h"
 #include "GrVkCommandBuffer.h"
 #include "GrVkPipeline.h"
-#include "GrVkRenderPass.h"
 #include "GrVkSampler.h"
 #include "GrVkUtil.h"
 
@@ -134,6 +133,33 @@
     return renderPass;
 }
 
+const GrVkRenderPass* GrVkResourceProvider::findRenderPass(
+                                                     const GrVkRenderTarget& target,
+                                                     const GrVkRenderPass::LoadStoreOps& colorOps,
+                                                     const GrVkRenderPass::LoadStoreOps& resolveOps,
+                                                     const GrVkRenderPass::LoadStoreOps& stencilOps,
+                                                     CompatibleRPHandle* compatibleHandle) {
+    // This will get us the handle to (and possible create) the compatible set for the specific
+    // GrVkRenderPass we are looking for.
+    this->findCompatibleRenderPass(target, compatibleHandle);
+    return this->findRenderPass(*compatibleHandle, colorOps, resolveOps, stencilOps);
+}
+
+const GrVkRenderPass*
+GrVkResourceProvider::findRenderPass(const CompatibleRPHandle& compatibleHandle,
+                                     const GrVkRenderPass::LoadStoreOps& colorOps,
+                                     const GrVkRenderPass::LoadStoreOps& resolveOps,
+                                     const GrVkRenderPass::LoadStoreOps& stencilOps) {
+    SkASSERT(compatibleHandle.isValid() && compatibleHandle.toIndex() < fRenderPassArray.count());
+    CompatibleRenderPassSet& compatibleSet = fRenderPassArray[compatibleHandle.toIndex()];
+    const GrVkRenderPass* renderPass = compatibleSet.getRenderPass(fGpu,
+                                                                   colorOps,
+                                                                   resolveOps,
+                                                                   stencilOps);
+    renderPass->ref();
+    return renderPass;
+}
+
 GrVkDescriptorPool* GrVkResourceProvider::findOrCreateCompatibleDescriptorPool(
                                                             VkDescriptorType type, uint32_t count) {
     return new GrVkDescriptorPool(fGpu, type, count);
@@ -295,6 +321,24 @@
     return fRenderPasses[0]->isCompatible(target);
 }
 
+GrVkRenderPass* GrVkResourceProvider::CompatibleRenderPassSet::getRenderPass(
+                                                   const GrVkGpu* gpu,
+                                                   const GrVkRenderPass::LoadStoreOps& colorOps,
+                                                   const GrVkRenderPass::LoadStoreOps& resolveOps,
+                                                   const GrVkRenderPass::LoadStoreOps& stencilOps) {
+    for (int i = 0; i < fRenderPasses.count(); ++i) {
+        int idx = (i + fLastReturnedIndex) % fRenderPasses.count();
+        if (fRenderPasses[idx]->equalLoadStoreOps(colorOps, resolveOps, stencilOps)) {
+            fLastReturnedIndex = idx;
+            return fRenderPasses[idx];
+        }
+    }
+    GrVkRenderPass* renderPass = fRenderPasses.push_back();
+    renderPass->init(gpu, *this->getCompatibleRenderPass(), colorOps, resolveOps, stencilOps);
+    fLastReturnedIndex = fRenderPasses.count() - 1;
+    return renderPass;
+}
+
 void GrVkResourceProvider::CompatibleRenderPassSet::releaseResources(const GrVkGpu* gpu) {
     for (int i = 0; i < fRenderPasses.count(); ++i) {
         if (fRenderPasses[i]) {