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Diffstat (limited to 'src/mesa/state_tracker/st_texture.h')
-rw-r--r-- | src/mesa/state_tracker/st_texture.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_texture.h b/src/mesa/state_tracker/st_texture.h new file mode 100644 index 00000000000..b25e3f3f3bd --- /dev/null +++ b/src/mesa/state_tracker/st_texture.h @@ -0,0 +1,109 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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, sub license, 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 (including the + * next paragraph) 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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 ST_TEXTURE_H +#define ST_TEXTURE_H + + +#include "main/mtypes.h" + +struct pipe_context; +struct pipe_texture; +struct pipe_region; + + +extern struct pipe_texture * +st_texture_create(struct st_context *st, + unsigned target, + unsigned format, + GLenum internal_format, + GLuint first_level, + GLuint last_level, + GLuint width0, + GLuint height0, + GLuint depth0, + GLuint compress_byte); + + +/* Check if an image fits an existing texture + */ +extern GLboolean +st_texture_match_image(struct pipe_texture *pt, + struct gl_texture_image *image, + GLuint face, GLuint level); + +/* Return a pointer to an image within a texture. Return image stride as + * well. + */ +extern GLubyte * +st_texture_image_map(struct st_context *st, + struct st_texture_image *stImage, + GLuint zoffset); + +extern void +st_texture_image_unmap(struct st_context *st, + struct st_texture_image *stImage); + + +/* Return pointers to each 2d slice within an image. Indexed by depth + * value. + */ +extern const GLuint * +st_texture_depth_offsets(struct pipe_texture *pt, GLuint level); + + +/* Return the linear offset of an image relative to the start of its region: + */ +extern GLuint +st_texture_image_offset(const struct pipe_texture *pt, + GLuint face, GLuint level); + +extern GLuint +st_texture_texel_offset(const struct pipe_texture * pt, + GLuint face, GLuint level, + GLuint col, GLuint row, GLuint img); + + +/* Upload an image into a texture + */ +extern void +st_texture_image_data(struct pipe_context *pipe, + struct pipe_texture *dst, + GLuint face, GLuint level, void *src, + GLuint src_row_pitch, GLuint src_image_pitch); + + +/* Copy an image between two textures + */ +extern void +st_texture_image_copy(struct pipe_context *pipe, + struct pipe_texture *dst, + GLuint face, GLuint level, + struct pipe_texture *src); + + +#endif |