Tile Compression

content/common/gpu/client/gpu_memory_buffer_impl.cc

Index: content/common/gpu/client/gpu_memory_buffer_impl.cc
diff --git a/content/common/gpu/client/gpu_memory_buffer_impl.cc b/content/common/gpu/client/gpu_memory_buffer_impl.cc
index d3c08bdb1a09b0d1256c297148cd190d2fae5690..c3814291d7c839e0910f74dad8ad2e54519475a1 100644
--- a/content/common/gpu/client/gpu_memory_buffer_impl.cc
+++ b/content/common/gpu/client/gpu_memory_buffer_impl.cc
@@ -76,11 +76,18 @@ GpuMemoryBufferImpl* GpuMemoryBufferImpl::FromClientBuffer(
 }
 
 // static
-size_t GpuMemoryBufferImpl::BytesPerPixel(Format format) {
+size_t GpuMemoryBufferImpl::BitsPerPixel(Format format) {
   switch (format) {
     case RGBA_8888:
     case RGBX_8888:
     case BGRA_8888:
+      return 32;
+    case ATCIA:
+    case DXT5:
+      return 8;
+    case ATC:
+    case DXT1:
+    case ETC1:
       return 4;
   }