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// Copyright (c) 2011 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.
#ifndef PPAPI_C_DEV_PPB_GLES_CHROMIUM_TEXTURE_MAPPING_DEV_H_
#define PPAPI_C_DEV_PPB_GLES_CHROMIUM_TEXTURE_MAPPING_DEV_H_
#include "ppapi/c/pp_resource.h"
#include "ppapi/c/ppb_opengles2.h"
#define PPB_GLES_CHROMIUM_TEXTURE_MAPPING_DEV_INTERFACE_0_1 \
"PPB_GLESChromiumTextureMapping(Dev);0.1"
#define PPB_GLES_CHROMIUM_TEXTURE_MAPPING_DEV_INTERFACE \
PPB_GLES_CHROMIUM_TEXTURE_MAPPING_DEV_INTERFACE_0_1
struct PPB_GLESChromiumTextureMapping_Dev {
// Maps the sub-image of a texture. 'level', 'xoffset', 'yoffset', 'width',
// 'height', 'format' and 'type' correspond to the similarly named parameters
// of TexSubImage2D, and define the sub-image region, as well as the format of
// the data. 'access' must be one of GL_READ_ONLY, GL_WRITE_ONLY or
// GL_READ_WRITE. If READ is included, the returned buffer will contain the
// pixel data for the sub-image. If WRITE is included, the pixel data for the
// sub-image will be updated to the contents of the buffer when
// UnmapTexSubImage2DCHROMIUM is called. NOTE: for a GL_WRITE_ONLY map, it
// means that all the values of the buffer must be written.
void* (*MapTexSubImage2DCHROMIUM)(
PP_Resource context,
GLenum target,
GLint level,
GLint xoffset,
GLint yoffset,
GLsizei width,
GLsizei height,
GLenum format,
GLenum type,
GLenum access);
// Unmaps the sub-image of a texture. If the sub-image was mapped with one of
// the WRITE accesses, the pixels are updated at this time to the contents of
// the buffer. 'mem' must be the pointer returned by MapTexSubImage2DCHROMIUM.
void (*UnmapTexSubImage2DCHROMIUM)(PP_Resource context, const void* mem);
};
#endif // PPAPI_C_DEV_PPB_GLES_CHROMIUM_TEXTURE_MAPPING_DEV_H_