Properly set the BufferToTextureTargetMap in Blimp

blimp/client/feature/compositor/blimp_gpu_memory_buffer_manager.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "blimp/client/feature/compositor/blimp_gpu_memory_buffer_manager.h"
 
+#include <GLES2/gl2.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/numerics/safe_conversions.h"
 #include "ui/gfx/buffer_format_util.h"
 #include "ui/gfx/gpu_memory_buffer.h"
@@ skipping 77 matching lines @@
   size_t stride_;
   bool mapped_;
 };
 
 }  // namespace
 
 BlimpGpuMemoryBufferManager::BlimpGpuMemoryBufferManager() {}
 
 BlimpGpuMemoryBufferManager::~BlimpGpuMemoryBufferManager() {}
 
+// static
+cc::BufferToTextureTargetMap
+BlimpGpuMemoryBufferManager::GetDefaultBufferToTextureTargetMap() {
+  cc::BufferToTextureTargetMap image_targets;
+  for (int usage_idx = 0; usage_idx <= static_cast<int>(gfx::BufferUsage::LAST);
+       ++usage_idx) {
+    gfx::BufferUsage usage = static_cast<gfx::BufferUsage>(usage_idx);
+    for (int format_idx = 0;
+         format_idx <= static_cast<int>(gfx::BufferFormat::LAST);
+         ++format_idx) {
+      gfx::BufferFormat format = static_cast<gfx::BufferFormat>(format_idx);
+      image_targets.insert(cc::BufferToTextureTargetMap::value_type(
+          cc::BufferToTextureTargetKey(usage, format), GL_TEXTURE_2D));
+    }
+  }
+  return image_targets;
+}
+
 std::unique_ptr<gfx::GpuMemoryBuffer>
 BlimpGpuMemoryBufferManager::AllocateGpuMemoryBuffer(
     const gfx::Size& size,
     gfx::BufferFormat format,
     gfx::BufferUsage usage,
     gpu::SurfaceHandle surface_handle) {
   DCHECK_EQ(gpu::kNullSurfaceHandle, surface_handle)
       << "Blimp should not be allocating scanout buffers";
   std::unique_ptr<base::SharedMemory> shared_memory(new base::SharedMemory);
   const size_t buffer_size = gfx::BufferSizeForBufferFormat(size, format);
@@ skipping 26 matching lines @@
 }
 
 void BlimpGpuMemoryBufferManager::SetDestructionSyncToken(
     gfx::GpuMemoryBuffer* buffer,
     const gpu::SyncToken& sync_token) {
   NOTIMPLEMENTED();
 }
 
 }  // namespace client
 }  // namespace blimp