| /************************************************************************** |
| * |
| * 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 "pipe/p_context.h" |
| #include "util/u_sampler.h" |
| |
| #include "main/mtypes.h" |
| |
| |
| struct pipe_resource; |
| |
| |
| /** |
| * Subclass of gl_texure_image. |
| */ |
| struct st_texture_image |
| { |
| struct gl_texture_image base; |
| |
| /** Used to store texture data that doesn't fit in the parent |
| * object's mipmap buffer. |
| */ |
| GLubyte *TexData; |
| |
| /* If stImage->pt != NULL, image data is stored here. |
| * Else if stImage->TexData != NULL, image is stored there. |
| * Else there is no image data. |
| */ |
| struct pipe_resource *pt; |
| |
| struct pipe_transfer *transfer; |
| }; |
| |
| |
| /** |
| * Subclass of gl_texure_object. |
| */ |
| struct st_texture_object |
| { |
| struct gl_texture_object base; /* The "parent" object */ |
| |
| /* The texture must include at levels [0..lastLevel] once validated: |
| */ |
| GLuint lastLevel; |
| |
| /** The size of the level=0 mipmap image. |
| * Note that the number of 1D array layers will be in height0 and the |
| * number of 2D array layers will be in depth0, as in GL. |
| */ |
| GLuint width0, height0, depth0; |
| |
| /* On validation any active images held in main memory or in other |
| * textures will be copied to this texture and the old storage freed. |
| */ |
| struct pipe_resource *pt; |
| |
| /* Default sampler view attached to this texture object. Created lazily |
| * on first binding. |
| */ |
| struct pipe_sampler_view *sampler_view; |
| |
| /* True if there is/was a surface bound to this texture object. It helps |
| * track whether the texture object is surface based or not. |
| */ |
| GLboolean surface_based; |
| }; |
| |
| |
| static INLINE struct st_texture_image * |
| st_texture_image(struct gl_texture_image *img) |
| { |
| return (struct st_texture_image *) img; |
| } |
| |
| static INLINE struct st_texture_object * |
| st_texture_object(struct gl_texture_object *obj) |
| { |
| return (struct st_texture_object *) obj; |
| } |
| |
| |
| static INLINE struct pipe_resource * |
| st_get_texobj_resource(struct gl_texture_object *texObj) |
| { |
| struct st_texture_object *stObj = st_texture_object(texObj); |
| return stObj ? stObj->pt : NULL; |
| } |
| |
| |
| static INLINE struct pipe_resource * |
| st_get_stobj_resource(struct st_texture_object *stObj) |
| { |
| return stObj ? stObj->pt : NULL; |
| } |
| |
| |
| static INLINE struct pipe_sampler_view * |
| st_create_texture_sampler_view_format(struct pipe_context *pipe, |
| struct pipe_resource *texture, |
| enum pipe_format format) |
| { |
| struct pipe_sampler_view templ; |
| |
| u_sampler_view_default_template(&templ, texture, format); |
| |
| return pipe->create_sampler_view(pipe, texture, &templ); |
| } |
| |
| static INLINE struct pipe_sampler_view * |
| st_create_texture_sampler_view(struct pipe_context *pipe, |
| struct pipe_resource *texture) |
| { |
| return st_create_texture_sampler_view_format(pipe, texture, |
| texture->format); |
| } |
| |
| |
| |
| extern struct pipe_resource * |
| st_texture_create(struct st_context *st, |
| enum pipe_texture_target target, |
| enum pipe_format format, |
| GLuint last_level, |
| GLuint width0, |
| GLuint height0, |
| GLuint depth0, |
| GLuint layers, |
| GLuint tex_usage ); |
| |
| |
| extern void |
| st_gl_texture_dims_to_pipe_dims(GLenum texture, |
| GLuint widthIn, |
| GLuint heightIn, |
| GLuint depthIn, |
| GLuint *widthOut, |
| GLuint *heightOut, |
| GLuint *depthOut, |
| GLuint *layersOut); |
| |
| /* Check if an image fits into an existing texture object. |
| */ |
| extern GLboolean |
| st_texture_match_image(const struct pipe_resource *pt, |
| const struct gl_texture_image *image); |
| |
| /* 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, |
| enum pipe_transfer_usage usage, |
| unsigned x, unsigned y, |
| unsigned w, unsigned h); |
| |
| 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_resource *pt, GLuint level); |
| |
| |
| /* Upload an image into a texture |
| */ |
| extern void |
| st_texture_image_data(struct st_context *st, |
| struct pipe_resource *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_resource *dst, GLuint dstLevel, |
| struct pipe_resource *src, GLuint srcLevel, |
| GLuint face); |
| |
| |
| extern struct pipe_resource * |
| st_create_color_map_texture(struct gl_context *ctx); |
| |
| #endif |