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/*

 * Mesa 3-D graphics library

 *

 * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.

 *

 * 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.

 */

#ifndef IMAGE_H

#define IMAGE_H

#include "glheader.h"

#include "compiler.h"

struct gl_context;

struct gl_pixelstore_attrib;

struct gl_framebuffer;

extern void

_mesa_swap2_copy(GLushort *dst, GLushort *src, GLuint n);

extern void

_mesa_swap4_copy(GLuint *dst, GLuint *src, GLuint n);

static inline void

_mesa_swap2(GLushort *p, GLuint n)

{

   _mesa_swap2_copy(p, p, n);

}

static inline void

_mesa_swap4(GLuint *p, GLuint n)

{

   _mesa_swap4_copy(p, p, n);

}

extern GLintptr

_mesa_image_offset( GLuint dimensions,

                    const struct gl_pixelstore_attrib *packing,

                    GLsizei width, GLsizei height,

                    GLenum format, GLenum type,

                    GLint img, GLint row, GLint column );

extern GLvoid *

_mesa_image_address( GLuint dimensions,

                     const struct gl_pixelstore_attrib *packing,

                     const GLvoid *image,

                     GLsizei width, GLsizei height,

                     GLenum format, GLenum type,

                     GLint img, GLint row, GLint column );

extern GLvoid *

_mesa_image_address1d( const struct gl_pixelstore_attrib *packing,

                       const GLvoid *image,

                       GLsizei width,

                       GLenum format, GLenum type,

                       GLint column );

extern GLvoid *

_mesa_image_address2d( const struct gl_pixelstore_attrib *packing,

                       const GLvoid *image,

                       GLsizei width, GLsizei height,

                       GLenum format, GLenum type,

                       GLint row, GLint column );

extern GLvoid *

_mesa_image_address3d( const struct gl_pixelstore_attrib *packing,

                       const GLvoid *image,

                       GLsizei width, GLsizei height,

                       GLenum format, GLenum type,

                       GLint img, GLint row, GLint column );

extern GLint

_mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,

                        GLint width, GLenum format, GLenum type );

extern GLint

_mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,

                          GLint width, GLint height,

                          GLenum format, GLenum type );

extern void

_mesa_expand_bitmap(GLsizei width, GLsizei height,

                    const struct gl_pixelstore_attrib *unpack,

                    const GLubyte *bitmap,

                    GLubyte *destBuffer, GLint destStride,

                    GLubyte onValue);

extern void

_mesa_convert_colors(GLenum srcType, const GLvoid *src,

                     GLenum dstType, GLvoid *dst,

                     GLuint count, const GLubyte mask[]);

extern GLboolean

_mesa_clip_drawpixels(const struct gl_context *ctx,

                      GLint *destX, GLint *destY,

                      GLsizei *width, GLsizei *height,

                      struct gl_pixelstore_attrib *unpack);

extern GLboolean

_mesa_clip_readpixels(const struct gl_context *ctx,

                      GLint *srcX, GLint *srcY,

                      GLsizei *width, GLsizei *height,

                      struct gl_pixelstore_attrib *pack);

extern GLboolean

_mesa_clip_copytexsubimage(const struct gl_context *ctx,

                           GLint *destX, GLint *destY,

                           GLint *srcX, GLint *srcY,

                           GLsizei *width, GLsizei *height);

extern GLboolean

_mesa_clip_to_region(GLint xmin, GLint ymin,

                     GLint xmax, GLint ymax,

                     GLint *x, GLint *y,

                     GLsizei *width, GLsizei *height );

extern GLboolean

_mesa_clip_blit(struct gl_context *ctx,

                const struct gl_framebuffer *readFb,

                const struct gl_framebuffer *drawFb,

                GLint *srcX0, GLint *srcY0, GLint *srcX1, GLint *srcY1,

                GLint *dstX0, GLint *dstY0, GLint *dstX1, GLint *dstY1);

#endif