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|
/**
* \file teximage.h
* Texture images manipulation functions.
*/
/*
* Mesa 3-D graphics library
*
* 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
* 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 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 &&
target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z);
}
/**
* Return number of faces for a texture target. This will be 6 for
* cube maps and 1 otherwise.
* NOTE: this function is not used for cube map arrays which operate
* more like 2D arrays than cube maps.
*/
static inline GLuint
_mesa_num_tex_faces(GLenum target)
{
switch (target) {
case GL_TEXTURE_CUBE_MAP:
case GL_PROXY_TEXTURE_CUBE_MAP:
return 6;
default:
return 1;
}
}
/**
* If the target is GL_TEXTURE_CUBE_MAP, return one of the
* GL_TEXTURE_CUBE_MAP_POSITIVE/NEGATIVE_X/Y/Z targets corresponding to
* the face parameter.
* Else, return target as-is.
*/
static inline GLenum
_mesa_cube_face_target(GLenum target, unsigned face)
{
if (target == GL_TEXTURE_CUBE_MAP) {
assert(face < 6);
return GL_TEXTURE_CUBE_MAP_POSITIVE_X + face;
}
else {
return target;
}
}
/**
* For cube map faces, return a face index in [0,5].
* For other targets return 0;
*/
static inline GLuint
_mesa_tex_target_to_face(GLenum target)
{
if (_mesa_is_cube_face(target))
return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
else
return 0;
}
/** Are 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 GLboolean
_mesa_is_proxy_texture(GLenum target);
extern bool
_mesa_is_array_texture(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,
mesa_format format);
extern mesa_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_image *
_mesa_select_tex_image(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);
/**
* Return the base-level texture image for the given texture object.
*/
static inline const struct gl_texture_image *
_mesa_base_tex_image(const struct gl_texture_object *texObj)
{
return texObj->Image[0][texObj->BaseLevel];
}
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,
mesa_format format,
GLint width, GLint height, GLint depth, GLint border);
extern GLboolean
_mesa_target_can_be_compressed(const struct gl_context *ctx, GLenum target,
GLenum intFormat, GLenum *error);
extern GLint
_mesa_get_texture_dimensions(GLenum target);
extern GLboolean
_mesa_tex_target_is_layered(GLenum target);
extern GLuint
_mesa_get_texture_layers(const struct gl_texture_object *texObj, GLint level);
extern GLsizei
_mesa_get_tex_max_num_levels(GLenum target, GLsizei width, GLsizei height,
GLsizei depth);
extern GLboolean
_mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
GLint level, GLint width, GLint height,
GLint depth, GLint border);
extern mesa_format
_mesa_validate_texbuffer_format(const struct gl_context *ctx,
GLenum internalFormat);
bool
_mesa_legal_texture_base_format_for_target(struct gl_context *ctx,
GLenum target,
GLenum internalFormat,
unsigned dimensions,
const char *caller);
GLboolean
_mesa_is_renderable_texture_format(struct gl_context *ctx, GLenum internalformat);
extern void
_mesa_texture_sub_image(struct gl_context *ctx, GLuint dims,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage,
GLenum target, GLint level,
GLint xoffset, GLint yoffset, GLint zoffset,
GLsizei width, GLsizei height, GLsizei depth,
GLenum format, GLenum type, const GLvoid *pixels,
bool dsa);
extern void
_mesa_compressed_texture_sub_image(struct gl_context *ctx, GLuint dims,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage,
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
_mesa_copy_texture_sub_image(struct gl_context *ctx, GLuint dims,
struct gl_texture_object *texObj,
GLenum target, GLint level,
GLint xoffset, GLint yoffset, GLint zoffset,
GLint x, GLint y,
GLsizei width, GLsizei height,
const char *caller);
extern void
_mesa_texture_buffer_range(struct gl_context *ctx,
struct gl_texture_object *texObj,
GLenum internalFormat,
struct gl_buffer_object *bufObj,
GLintptr offset, GLsizeiptr size,
const char *caller);
/*@}*/
/** \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_TextureSubImage1D(GLuint texture, GLint level, GLint xoffset,
GLsizei width,
GLenum format, GLenum type,
const GLvoid *pixels);
extern void GLAPIENTRY
_mesa_TextureSubImage2D(GLuint texture, GLint level,
GLint xoffset, GLint yoffset,
GLsizei width, GLsizei height,
GLenum format, GLenum type,
const GLvoid *pixels);
extern void GLAPIENTRY
_mesa_TextureSubImage3D(GLuint texture, 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_CopyTextureSubImage1D(GLuint texture, GLint level,
GLint xoffset, GLint x, GLint y, GLsizei width);
extern void GLAPIENTRY
_mesa_CopyTextureSubImage2D(GLuint texture, GLint level,
GLint xoffset, GLint yoffset,
GLint x, GLint y,
GLsizei width, GLsizei height);
extern void GLAPIENTRY
_mesa_CopyTextureSubImage3D(GLuint texture, GLint level,
GLint xoffset, GLint yoffset, GLint zoffset,
GLint x, GLint y,
GLsizei width, GLsizei height);
extern void GLAPIENTRY
_mesa_ClearTexSubImage( GLuint texture, GLint level,
GLint xoffset, GLint yoffset, GLint zoffset,
GLsizei width, GLsizei height, GLsizei depth,
GLenum format, GLenum type, const void *data );
extern void GLAPIENTRY
_mesa_ClearTexImage( GLuint texture, GLint level,
GLenum format, GLenum type, const void *data );
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);
extern void GLAPIENTRY
_mesa_CompressedTexSubImage1D(GLenum target, GLint level, GLint xoffset,
GLsizei width, GLenum format,
GLsizei imageSize, const GLvoid *data);
extern void GLAPIENTRY
_mesa_CompressedTextureSubImage1D(GLuint texture, 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_CompressedTextureSubImage2D(GLuint texture, 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_CompressedTextureSubImage3D(GLuint texture, 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);
extern void GLAPIENTRY
_mesa_TexBufferRange(GLenum target, GLenum internalFormat, GLuint buffer,
GLintptr offset, GLsizeiptr size);
extern void GLAPIENTRY
_mesa_TextureBuffer(GLuint texture, GLenum internalFormat, GLuint buffer);
extern void GLAPIENTRY
_mesa_TextureBufferRange(GLuint texture, GLenum internalFormat, GLuint buffer,
GLintptr offset, GLsizeiptr size);
extern void GLAPIENTRY
_mesa_TexImage2DMultisample(GLenum target, GLsizei samples,
GLenum internalformat, GLsizei width,
GLsizei height, GLboolean fixedsamplelocations);
extern void GLAPIENTRY
_mesa_TexImage3DMultisample(GLenum target, GLsizei samples,
GLenum internalformat, GLsizei width,
GLsizei height, GLsizei depth,
GLboolean fixedsamplelocations);
extern void GLAPIENTRY
_mesa_TexStorage2DMultisample(GLenum target, GLsizei samples,
GLenum internalformat, GLsizei width,
GLsizei height, GLboolean fixedsamplelocations);
extern void GLAPIENTRY
_mesa_TexStorage3DMultisample(GLenum target, GLsizei samples,
GLenum internalformat, GLsizei width,
GLsizei height, GLsizei depth,
GLboolean fixedsamplelocations);
void GLAPIENTRY
_mesa_TextureStorage2DMultisample(GLuint texture, GLsizei samples,
GLenum internalformat, GLsizei width,
GLsizei height,
GLboolean fixedsamplelocations);
void GLAPIENTRY
_mesa_TextureStorage3DMultisample(GLuint texture, GLsizei samples,
GLenum internalformat, GLsizei width,
GLsizei height, GLsizei depth,
GLboolean fixedsamplelocations);
/*@}*/
#ifdef __cplusplus
}
#endif
#endif
|
