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/*
* Mesa 3-D graphics library
*
* Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
* Copyright (c) 2008 VMware, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* \file texstore.h
* Texture image storage routines.
*
* \author Brian Paul
*/
#ifndef TEXSTORE_H
#define TEXSTORE_H
#include "mtypes.h"
#include "formats.h"
/**
* This macro defines the (many) parameters to the texstore functions.
* \param dims either 1 or 2 or 3
* \param baseInternalFormat user-specified base internal format
* \param dstFormat destination Mesa texture format
* \param dstX/Y/Zoffset destination x/y/z offset (ala TexSubImage), in texels
* \param dstRowStride destination image row stride, in bytes
* \param dstSlices array of addresses of image slices (for 3D, array texture)
* \param srcWidth/Height/Depth source image size, in pixels
* \param srcFormat incoming image format
* \param srcType incoming image data type
* \param srcAddr source image address
* \param srcPacking source image packing parameters
*/
#define TEXSTORE_PARAMS \
struct gl_context *ctx, GLuint dims, \
MAYBE_UNUSED GLenum baseInternalFormat, \
MAYBE_UNUSED mesa_format dstFormat, \
GLint dstRowStride, \
GLubyte **dstSlices, \
GLint srcWidth, GLint srcHeight, GLint srcDepth, \
GLenum srcFormat, GLenum srcType, \
const GLvoid *srcAddr, \
const struct gl_pixelstore_attrib *srcPacking
/* This macro must be kept in sync with TEXSTORE_PARAMS. It is used in the
* few places where none of the parameters are used (i.e., the ETC texstore
* functions).
*/
#define UNUSED_TEXSTORE_PARAMS \
UNUSED struct gl_context *ctx, UNUSED GLuint dims, \
UNUSED GLenum baseInternalFormat, \
UNUSED mesa_format dstFormat, \
UNUSED GLint dstRowStride, \
UNUSED GLubyte **dstSlices, \
UNUSED GLint srcWidth, UNUSED GLint srcHeight, UNUSED GLint srcDepth, \
UNUSED GLenum srcFormat, UNUSED GLenum srcType, \
UNUSED const GLvoid *srcAddr, \
UNUSED const struct gl_pixelstore_attrib *srcPacking
extern GLboolean
_mesa_texstore(TEXSTORE_PARAMS);
extern GLboolean
_mesa_texstore_needs_transfer_ops(struct gl_context *ctx,
GLenum baseInternalFormat,
mesa_format dstFormat);
extern void
_mesa_memcpy_texture(struct gl_context *ctx,
GLuint dimensions,
mesa_format dstFormat,
GLint dstRowStride,
GLubyte **dstSlices,
GLint srcWidth, GLint srcHeight, GLint srcDepth,
GLenum srcFormat, GLenum srcType,
const GLvoid *srcAddr,
const struct gl_pixelstore_attrib *srcPacking);
extern GLboolean
_mesa_texstore_can_use_memcpy(struct gl_context *ctx,
GLenum baseInternalFormat, mesa_format dstFormat,
GLenum srcFormat, GLenum srcType,
const struct gl_pixelstore_attrib *srcPacking);
extern void
_mesa_store_teximage(struct gl_context *ctx,
GLuint dims,
struct gl_texture_image *texImage,
GLenum format, GLenum type, const GLvoid *pixels,
const struct gl_pixelstore_attrib *packing);
extern void
_mesa_store_texsubimage(struct gl_context *ctx, GLuint dims,
struct gl_texture_image *texImage,
GLint xoffset, GLint yoffset, GLint zoffset,
GLint width, GLint height, GLint depth,
GLenum format, GLenum type, const GLvoid *pixels,
const struct gl_pixelstore_attrib *packing);
extern void
_mesa_store_cleartexsubimage(struct gl_context *ctx,
struct gl_texture_image *texImage,
GLint xoffset, GLint yoffset, GLint zoffset,
GLsizei width, GLsizei height, GLsizei depth,
const GLvoid *clearValue);
extern void
_mesa_store_compressed_teximage(struct gl_context *ctx, GLuint dims,
struct gl_texture_image *texImage,
GLsizei imageSize, const GLvoid *data);
extern void
_mesa_store_compressed_texsubimage(struct gl_context *ctx, GLuint dims,
struct gl_texture_image *texImage,
GLint xoffset, GLint yoffset, GLint zoffset,
GLsizei width, GLsizei height, GLsizei depth,
GLenum format,
GLsizei imageSize, const GLvoid *data);
struct compressed_pixelstore {
int SkipBytes;
int CopyBytesPerRow;
int CopyRowsPerSlice;
int TotalBytesPerRow;
int TotalRowsPerSlice;
int CopySlices;
};
extern void
_mesa_compute_compressed_pixelstore(GLuint dims, mesa_format texFormat,
GLsizei width, GLsizei height,
GLsizei depth,
const struct gl_pixelstore_attrib *packing,
struct compressed_pixelstore *store);
#endif
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