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205 lines
6 KiB
C
205 lines
6 KiB
C
/**
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* \file teximage.h
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* Texture images manipulation functions.
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*/
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/*
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* Mesa 3-D graphics library
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* Version: 6.5
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*
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* Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef TEXIMAGE_H
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#define TEXIMAGE_H
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#include "mtypes.h"
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#include "formats.h"
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/** Is the given value one of the 6 cube faces? */
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static inline GLboolean
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_mesa_is_cube_face(GLenum target)
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{
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return (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
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target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB);
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}
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/** Is any of the dimensions of given texture equal to zero? */
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static inline GLboolean
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_mesa_is_zero_size_texture(const struct gl_texture_image *texImage)
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{
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return (texImage->Width == 0 ||
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texImage->Height == 0 ||
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texImage->Depth == 0);
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}
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/** \name Internal functions */
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/*@{*/
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extern GLint
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_mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat );
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extern GLboolean
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_mesa_is_proxy_texture(GLenum target);
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extern struct gl_texture_image *
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_mesa_new_texture_image( struct gl_context *ctx );
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extern void
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_mesa_delete_texture_image( struct gl_context *ctx,
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struct gl_texture_image *teximage );
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extern void
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_mesa_init_teximage_fields(struct gl_context *ctx,
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struct gl_texture_image *img,
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GLsizei width, GLsizei height, GLsizei depth,
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GLint border, GLenum internalFormat,
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gl_format format);
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extern gl_format
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_mesa_choose_texture_format(struct gl_context *ctx,
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struct gl_texture_object *texObj,
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GLenum target, GLint level,
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GLenum internalFormat, GLenum format, GLenum type);
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extern void
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_mesa_clear_texture_image(struct gl_context *ctx,
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struct gl_texture_image *texImage);
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extern struct gl_texture_object *
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_mesa_select_tex_object(struct gl_context *ctx,
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GLenum target);
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extern struct gl_texture_image *
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_mesa_select_tex_image(struct gl_context *ctx,
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const struct gl_texture_object *texObj,
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GLenum target, GLint level);
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extern struct gl_texture_image *
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_mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
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GLenum target, GLint level);
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extern struct gl_texture_image *
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_mesa_get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level);
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extern GLint
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_mesa_max_texture_levels(struct gl_context *ctx, GLenum target);
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extern GLboolean
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_mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
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GLint internalFormat, GLenum format, GLenum type,
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GLint width, GLint height, GLint depth, GLint border);
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extern GLuint
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_mesa_tex_target_to_face(GLenum target);
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extern GLint
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_mesa_get_texture_dimensions(GLenum target);
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/**
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* Lock a texture for updating. See also _mesa_lock_context_textures().
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*/
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static inline void
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_mesa_lock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
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{
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_glthread_LOCK_MUTEX(ctx->Shared->TexMutex);
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ctx->Shared->TextureStateStamp++;
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(void) texObj;
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}
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static inline void
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_mesa_unlock_texture(struct gl_context *ctx, struct gl_texture_object *texObj)
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{
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(void) texObj;
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_glthread_UNLOCK_MUTEX(ctx->Shared->TexMutex);
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}
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/*@}*/
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/** \name API entry point functions */
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/*@{*/
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extern void GLAPIENTRY
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_mesa_TexImage1D( GLenum target, GLint level, GLint internalformat,
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GLsizei width, GLint border,
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GLenum format, GLenum type, const GLvoid *pixels );
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extern void GLAPIENTRY
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_mesa_TexImage2D( GLenum target, GLint level, GLint internalformat,
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GLsizei width, GLsizei height, GLint border,
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GLenum format, GLenum type, const GLvoid *pixels );
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extern void GLAPIENTRY
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_mesa_TexSubImage1D( GLenum target, GLint level, GLint xoffset,
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GLsizei width,
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GLenum format, GLenum type,
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const GLvoid *pixels );
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extern void GLAPIENTRY
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_mesa_TexSubImage2D( GLenum target, GLint level,
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GLint xoffset, GLint yoffset,
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GLsizei width, GLsizei height,
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GLenum format, GLenum type,
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const GLvoid *pixels );
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extern void GLAPIENTRY
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_mesa_CopyTexImage1D( GLenum target, GLint level, GLenum internalformat,
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GLint x, GLint y, GLsizei width, GLint border );
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extern void GLAPIENTRY
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_mesa_CopyTexImage2D( GLenum target, GLint level,
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GLenum internalformat, GLint x, GLint y,
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GLsizei width, GLsizei height, GLint border );
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extern void GLAPIENTRY
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_mesa_CopyTexSubImage1D( GLenum target, GLint level, GLint xoffset,
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GLint x, GLint y, GLsizei width );
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extern void GLAPIENTRY
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_mesa_CopyTexSubImage2D( GLenum target, GLint level,
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GLint xoffset, GLint yoffset,
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GLint x, GLint y, GLsizei width, GLsizei height );
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/*@}*/
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#endif
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