Tile Compression

gpu/command_buffer/common/gles2_cmd_utils.h

Index: gpu/command_buffer/common/gles2_cmd_utils.h
diff --git a/gpu/command_buffer/common/gles2_cmd_utils.h b/gpu/command_buffer/common/gles2_cmd_utils.h
index 163ffc008c206f1edb1674d7f321d238299ef10c..1435e1636a9ca01eb514e707aea7e3f3c1af06aa 100644
--- a/gpu/command_buffer/common/gles2_cmd_utils.h
+++ b/gpu/command_buffer/common/gles2_cmd_utils.h
@@ -129,6 +129,17 @@ class GLES2_UTILS_EXPORT GLES2Util {
       int width, int height, int format, int type, int unpack_alignment,
       uint32_t* size, uint32_t* unpadded_row_size, uint32_t* padded_row_size);
 
+  // Computes the size of image data for supported compressed formats.
+  static bool ComputeCompressedImageSize(int width,
+                                         int height,
+                                         int format,
+                                         int* ret_size);
+
+  static bool IsValidCompressedImageSize(int level,
+                                         int width,
+                                         int height,
+                                         int format);
+
   static size_t RenderbufferBytesPerPixel(int format);
 
   static uint32_t GetGLDataTypeSizeForUniforms(int type);