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

src/gpu/GrStencil.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "GrStencil.h"
 
+#include "GrProcessor.h"
+
 ////////////////////////////////////////////////////////////////////////////////
 // Stencil Rules for Merging user stencil space into clip
 
 // We can't include the clip bit in the ref or mask values because the division
 // between user and clip bits in the stencil depends on the number of stencil
 // bits in the runtime. Comments below indicate what the code should do to
 // incorporate the clip bit into these settings.
 
 ///////
 // Replace
@@ skipping 364 matching lines @@
                     settings[1].fFuncMasks[kFront_Face];
                 settings[1].fFuncRefs[kBack_Face] =
                     settings[1].fFuncRefs[kFront_Face];
             }
             break;
         default:
             SkFAIL("Unknown set op");
     }
     return false;
 }
+
+void GrStencilSettings::genKey(GrProcessorKeyBuilder* b) const {
+    SkASSERT(sizeof(GrStencilSettings) <= 6 * sizeof(uint32_t));

[bsalomon, 2016/03/22 14:00:33]

How about

static const int kCount = sizeof(GrStencilSettings) / sizeof(uint32_t);
GR_STATIC_ASSERT(0 == sizeof(GrStencilSettings) % sizeof(uint32_t));

Also, is this guy tightly packed or does it memset itself to zero?

[egdaniel, 2016/03/22 20:06:14]

Done. He does do a memset to zero in ctor. In general he is tightly packed
except for 16 bits of packing in middle which is also manually set to 0 to make
sure it is all nicely initialized.

+    uint32_t* key = b->add32n(6);
+    memcpy(key, this, sizeof(GrStencilSettings));
+}