Set up cache in vulkan to reuse GrVkPrograms (aka VkPipelines)

src/gpu/vk/GrVkResourceProvider.cpp

Index: src/gpu/vk/GrVkResourceProvider.cpp
diff --git a/src/gpu/vk/GrVkResourceProvider.cpp b/src/gpu/vk/GrVkResourceProvider.cpp
index 3e0dfa028d4c01b45aa23ae1a30f971324b7ffa1..3a28af5cd5d7fe08e05adf1d2e4b8c2c4e5b26f7 100644
--- a/src/gpu/vk/GrVkResourceProvider.cpp
+++ b/src/gpu/vk/GrVkResourceProvider.cpp
@@ -21,11 +21,13 @@ SkRandom GrVkResource::fRandom;
 
 GrVkResourceProvider::GrVkResourceProvider(GrVkGpu* gpu) : fGpu(gpu)
                                                          , fPipelineCache(VK_NULL_HANDLE) {
+    fProgramCache = new ProgramCache(gpu);
 }
 
 GrVkResourceProvider::~GrVkResourceProvider() {
     SkASSERT(0 == fSimpleRenderPasses.count());
     SkASSERT(VK_NULL_HANDLE == fPipelineCache);
+    delete fProgramCache;
 }
 
 void GrVkResourceProvider::init() {
@@ -94,6 +96,13 @@ GrVkSampler* GrVkResourceProvider::findOrCreateCompatibleSampler(const GrTexture
     return sampler;
 }
 
+GrVkProgram* GrVkResourceProvider::findOrCreateCompatibleProgram(const GrPipeline& pipeline,
+                                                                 const GrPrimitiveProcessor& proc,
+                                                                 GrPrimitiveType primitiveType,
+                                                                 const GrVkRenderPass& renderPass) {
+    return fProgramCache->refProgram(pipeline, proc, primitiveType, renderPass);
+}
+
 GrVkCommandBuffer* GrVkResourceProvider::createCommandBuffer() {
     GrVkCommandBuffer* cmdBuffer = GrVkCommandBuffer::Create(fGpu, fGpu->cmdPool());
     fActiveCommandBuffers.push_back(cmdBuffer);
@@ -132,6 +141,8 @@ void GrVkResourceProvider::destroyResources() {
     }
     fSamplers.reset();
 
+    fProgramCache->release();
+
 #ifdef SK_TRACE_VK_RESOURCES
     SkASSERT(0 == GrVkResource::fTrace.count());
 #endif
@@ -160,6 +171,8 @@ void GrVkResourceProvider::abandonResources() {
     }
     fSamplers.reset();
 
+    fProgramCache->abandon();
+
 #ifdef SK_TRACE_VK_RESOURCES
     SkASSERT(0 == GrVkResource::fTrace.count());
 #endif