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/**
* \file teximage.h
* Texture images manipulation functions.
*/
/*
* Mesa 3-D graphics library
* Version: 6.5
*
* Copyright (C) 1999-2005 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
* BRIAN PAUL 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 TEXIMAGE_H
#define TEXIMAGE_H
#include "mtypes.h"
#include "formats.h"
#ifdef __cplusplus
extern "C" {
#endif
/** Is the given value one of the 6 cube faces? */
static inline GLboolean
_mesa_is_cube_face(GLenum target)
{
return (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB);
}
/** Is any of the dimensions of given texture equal to zero? */
static inline GLboolean
_mesa_is_zero_size_texture(const struct gl_texture_image *texImage)
{
return (texImage->Width == 0 ||
texImage->Height == 0 ||
texImage->Depth == 0);
}
/** \name Internal functions */
/*@{*/
extern GLint
_mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat );
extern GLboolean
_mesa_is_proxy_texture(GLenum target);
extern GLenum
_mesa_get_proxy_target(GLenum target);
extern struct gl_texture_image *
_mesa_new_texture_image( struct gl_context *ctx );
extern void
_mesa_delete_texture_image( struct gl_context *ctx,
struct gl_texture_image *teximage );
extern void
_mesa_init_teximage_fields(struct gl_context *ctx,
struct gl_texture_image *img,
GLsizei width, GLsizei height, GLsizei depth,
GLint border, GLenum internalFormat,
gl_format format);
extern gl_format
_mesa_choose_texture_format(struct gl_context *ctx,
struct gl_texture_object *texObj,
GLenum target, GLint level,
GLenum internalFormat, GLenum format, GLenum type);
extern void
_mesa_update_fbo_texture(struct gl_context *ctx,
struct gl_texture_object *texObj,
GLuint face, GLuint level);
extern void
_mesa_clear_texture_image(struct gl_context *ctx,
struct gl_texture_image *texImage);
extern struct gl_texture_object *
_mesa_select_tex_object(struct gl_context *ctx,
const struct gl_texture_unit *texUnit,
GLenum target);
extern struct gl_texture_object *
_mesa_get_current_tex_object(struct gl_context *ctx, GLenum target);
extern struct gl_texture_image *
_mesa_select_tex_image(struct gl_context *ctx,
const struct gl_texture_object *texObj,
GLenum target, GLint level);
extern struct gl_texture_image *
_mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
GLenum target, GLint level);
extern GLint
_mesa_max_texture_levels(struct gl_context *ctx, GLenum target);
extern GLboolean
_mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
gl_format format,
GLint width, GLint height, GLint depth, GLint border);
extern GLuint
_mesa_tex_target_to_face(GLenum target);
extern GLint
_mesa_get_texture_dimensions(GLenum target);
extern GLboolean
_mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
GLint level, GLint width, GLint height,
GLint depth, GLint border);
/**
* Lock a texture for updating. See also _mesa_lock_context_textures().
*/
static inline void
_mesa_lock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
{
_glthread_LOCK_MUTEX(ctx->Shared->TexMutex);
ctx->Shared->TextureStateStamp++;
(void) texObj;
}
static inline void
_mesa_unlock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
{
(void) texObj;
_glthread_UNLOCK_MUTEX(ctx->Shared->TexMutex);
}
/*@}*/
/** \name API entry point functions */
/*@{*/
extern void GLAPIENTRY
_mesa_TexImage1D( GLenum target, GLint level, GLint internalformat,
GLsizei width, GLint border,
GLenum format, GLenum type, const GLvoid *pixels );
extern void GLAPIENTRY
_mesa_TexImage2D( GLenum target, GLint level, GLint internalformat,
GLsizei width, GLsizei height, GLint border,
GLenum format, GLenum type, const GLvoid *pixels );
extern void GLAPIENTRY
_mesa_TexImage3D( GLenum target, GLint level, GLint internalformat,
GLsizei width, GLsizei height, GLsizei depth, GLint border,
GLenum format, GLenum type, const GLvoid *pixels );
extern void GLAPIENTRY
_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalformat,
GLsizei width, GLsizei height, GLsizei depth,
GLint border, GLenum format, GLenum type,
const GLvoid *pixels );
extern void GLAPIENTRY
_mesa_EGLImageTargetTexture2DOES( GLenum target, GLeglImageOES image );
extern void GLAPIENTRY
_mesa_TexSubImage1D( GLenum target, GLint level, GLint xoffset,
GLsizei width,
GLenum format, GLenum type,
const GLvoid *pixels );
extern void GLAPIENTRY
_mesa_TexSubImage2D( GLenum target, GLint level,
GLint xoffset, GLint yoffset,
GLsizei width, GLsizei height,
GLenum format, GLenum type,
const GLvoid *pixels );
extern void GLAPIENTRY
_mesa_TexSubImage3D( GLenum target, GLint level,
GLint xoffset, GLint yoffset, GLint zoffset,
GLsizei width, GLsizei height, GLsizei depth,
GLenum format, GLenum type,
const GLvoid *pixels );
extern void GLAPIENTRY
_mesa_CopyTexImage1D( GLenum target, GLint level, GLenum internalformat,
GLint x, GLint y, GLsizei width, GLint border );
extern void GLAPIENTRY
_mesa_CopyTexImage2D( GLenum target, GLint level,
GLenum internalformat, GLint x, GLint y,
GLsizei width, GLsizei height, GLint border );
extern void GLAPIENTRY
_mesa_CopyTexSubImage1D( GLenum target, GLint level, GLint xoffset,
GLint x, GLint y, GLsizei width );
extern void GLAPIENTRY
_mesa_CopyTexSubImage2D( GLenum target, GLint level,
GLint xoffset, GLint yoffset,
GLint x, GLint y, GLsizei width, GLsizei height );
extern void GLAPIENTRY
_mesa_CopyTexSubImage3D( GLenum target, GLint level,
GLint xoffset, GLint yoffset, GLint zoffset,
GLint x, GLint y, GLsizei width, GLsizei height );
extern void GLAPIENTRY
_mesa_CompressedTexImage1D(GLenum target, GLint level,
GLenum internalformat, GLsizei width,
GLint border, GLsizei imageSize,
const GLvoid *data);
extern void GLAPIENTRY
_mesa_CompressedTexImage2D(GLenum target, GLint level,
GLenum internalformat, GLsizei width,
GLsizei height, GLint border, GLsizei imageSize,
const GLvoid *data);
extern void GLAPIENTRY
_mesa_CompressedTexImage3D(GLenum target, GLint level,
GLenum internalformat, GLsizei width,
GLsizei height, GLsizei depth, GLint border,
GLsizei imageSize, const GLvoid *data);
#ifdef VMS
#define _mesa_CompressedTexSubImage1D _mesa_CompressedTexSubImage1DAR
#define _mesa_CompressedTexSubImage2D _mesa_CompressedTexSubImage2DAR
#define _mesa_CompressedTexSubImage3D _mesa_CompressedTexSubImage3DAR
#endif
extern void GLAPIENTRY
_mesa_CompressedTexSubImage1D(GLenum target, GLint level, GLint xoffset,
GLsizei width, GLenum format,
GLsizei imageSize, const GLvoid *data);
extern void GLAPIENTRY
_mesa_CompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset,
GLint yoffset, GLsizei width, GLsizei height,
GLenum format, GLsizei imageSize,
const GLvoid *data);
extern void GLAPIENTRY
_mesa_CompressedTexSubImage3D(GLenum target, GLint level, GLint xoffset,
GLint yoffset, GLint zoffset, GLsizei width,
GLsizei height, GLsizei depth, GLenum format,
GLsizei imageSize, const GLvoid *data);
extern void GLAPIENTRY
_mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer);
/*@}*/
#ifdef __cplusplus
}
#endif
#endif
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