Tile Compression

gpu/command_buffer/common/gles2_cmd_utils.h

 // Copyright (c) 2012 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.
 
 // This file is here so other GLES2 related files can have a common set of
 // includes where appropriate.
 
 #ifndef GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_UTILS_H_
 #define GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_UTILS_H_
 
@@ skipping 111 matching lines @@
       uint32_t* padded_row_size);
 
   // Computes the size of image data for TexImage2D and TexSubImage2D.
   // Optionally the unpadded and padded row sizes can be returned. If height < 2
   // then the padded_row_size will be the same as the unpadded_row_size since
   // padding is not necessary.
   static bool ComputeImageDataSizes(
       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);
 
   static size_t GetGLTypeSizeForTexturesAndBuffers(uint32_t type);
 
   static uint32_t GLErrorToErrorBit(uint32_t gl_error);
 
   static uint32_t GLErrorBitToGLError(uint32_t error_bit);
 
@@ skipping 73 matching lines @@
   bool bind_generates_resource;
   bool fail_if_major_perf_caveat;
   bool lose_context_when_out_of_memory;
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_UTILS_H_