gpu: support R16 GPUMemoryBuffer

gpu/ipc/host/gpu_memory_buffer_support.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 "gpu/ipc/host/gpu_memory_buffer_support.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "build/build_config.h"
 #include "gpu/ipc/common/gpu_memory_buffer_support.h"
@@ skipping 21 matching lines @@
 #endif
 }
 
 GpuMemoryBufferConfigurationSet GetNativeGpuMemoryBufferConfigurations() {
   GpuMemoryBufferConfigurationSet configurations;
 
 #if defined(USE_OZONE) || defined(OS_MACOSX)
   if (AreNativeGpuMemoryBuffersEnabled()) {
     const gfx::BufferFormat kNativeFormats[] = {
         gfx::BufferFormat::R_8,       gfx::BufferFormat::RG_88,
+        gfx::BufferFormat::R_16,      gfx::BufferFormat::R_16,

[aleksandar.stojiljkovic, 2017/06/07 20:11:55]

typo here? No need to have it twice.

         gfx::BufferFormat::BGR_565,   gfx::BufferFormat::RGBA_4444,
         gfx::BufferFormat::RGBA_8888, gfx::BufferFormat::BGRA_8888,
         gfx::BufferFormat::RGBA_F16,  gfx::BufferFormat::UYVY_422,
         gfx::BufferFormat::YVU_420,   gfx::BufferFormat::YUV_420_BIPLANAR};
     const gfx::BufferUsage kNativeUsages[] = {
         gfx::BufferUsage::GPU_READ, gfx::BufferUsage::SCANOUT,
         gfx::BufferUsage::GPU_READ_CPU_READ_WRITE,
         gfx::BufferUsage::GPU_READ_CPU_READ_WRITE_PERSISTENT};
     for (auto format : kNativeFormats) {
       for (auto usage : kNativeUsages) {
@@ skipping 52 matching lines @@
       break;
   }
   NOTREACHED();
   return GL_TEXTURE_2D;
 #else  // defined(USE_OZONE) || defined(OS_MACOSX)
   return GL_TEXTURE_2D;
 #endif
 }
 
 }  // namespace gpu