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

src/gpu/vk/GrVkGpu.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrVkGpu.h"
 
 #include "GrContextOptions.h"
@@ skipping 510 matching lines @@
     imageDesc.fLevels = 1;
     imageDesc.fSamples = 1;
     imageDesc.fImageTiling = linearTiling ? VK_IMAGE_TILING_LINEAR : VK_IMAGE_TILING_OPTIMAL;
     imageDesc.fUsageFlags = usageFlags;
     imageDesc.fMemProps = memProps;
 
     GrVkTexture* tex;
     if (renderTarget) {
         tex = GrVkTextureRenderTarget::CreateNewTextureRenderTarget(this, desc, lifeCycle,
                                                                     imageDesc);
-#if 0
-        // This clear can be included to fix warning described in htttps://bugs.skia.org/5045
-        // Obviously we do not want to be clearling needlessly every time we create a render target.
-        SkIRect rect = SkIRect::MakeWH(tex->width(), tex->height());
-        this->clear(rect, GrColor_TRANSPARENT_BLACK, tex->asRenderTarget());
-#endif
     } else {
         tex = GrVkTexture::CreateNewTexture(this, desc, lifeCycle, imageDesc);
     }
 
     if (!tex) {
         return nullptr;
     }
 
     // TODO: We're ignoring MIP levels here.
     if (!texels.empty()) {
@@ skipping 760 matching lines @@
             memcpy(tmpRow, top, tightRowBytes);
             memcpy(top, bottom, tightRowBytes);
             memcpy(bottom, tmpRow, tightRowBytes);
             top += rowBytes;
             bottom -= rowBytes;
         }
     }
 
     return true;
 }
-
 bool GrVkGpu::prepareDrawState(const GrPipeline& pipeline,
                                const GrPrimitiveProcessor& primProc,
                                GrPrimitiveType primitiveType,
                                const GrVkRenderPass& renderPass,
                                GrVkProgram** program) {
-    // Get GrVkProgramDesc
-    GrVkProgramDesc desc;
-    if (!GrVkProgramDescBuilder::Build(&desc, primProc, pipeline, *this->vkCaps().glslCaps())) {
-        GrCapsDebugf(this->caps(), "Failed to vk program descriptor!\n");
-        return false;
-    }
-
-    *program = GrVkProgramBuilder::CreateProgram(this,
-                                                 pipeline,
-                                                 primProc,
-                                                 primitiveType,
-                                                 desc,
-                                                 renderPass);
+    *program = fResourceProvider.findOrCreateCompatibleProgram(pipeline,
+                                                               primProc,
+                                                               primitiveType,
+                                                               renderPass);
     if (!program) {
         return false;
     }
 
     (*program)->setData(this, primProc, pipeline);
 
     (*program)->bind(this, fCurrentCmdBuffer);
 
     GrVkPipeline::SetDynamicState(this, fCurrentCmdBuffer, pipeline);
 
@@ skipping 103 matching lines @@
             fStats.incNumDraws();
         } while ((nonIdxMesh = iter.next()));
     }
 
     fCurrentCmdBuffer->endRenderPass(this);
 
     // Technically we don't have to call this here (since there is a safety check in program:setData
     // but this will allow for quicker freeing of resources if the program sits in a cache for a
     // while.
     program->freeTempResources(this);
-    // This free will go away once we setup a program cache, and then the cache will be responsible
-    // for call freeGpuResources.
-    program->freeGPUResources(this);
     program->unref();
 
 #if SWAP_PER_DRAW
     glFlush();
 #if defined(SK_BUILD_FOR_MAC)
     aglSwapBuffers(aglGetCurrentContext());
     int set_a_break_pt_here = 9;
     aglSwapBuffers(aglGetCurrentContext());
 #elif defined(SK_BUILD_FOR_WIN32)
     SwapBuf();
     int set_a_break_pt_here = 9;
     SwapBuf();
 #endif
 #endif
 }