/************************************************************************** * * 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 this texture comes from the window system. Such a texture * cannot be reallocated and the format can only be changed with a sampler * view or a surface. */ GLboolean surface_based; /* If surface_based is true, this format should be used for all sampler * views and surfaces instead of pt->format. */ enum pipe_format surface_format; }; 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 nr_samples, 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, enum pipe_transfer_usage usage, GLuint x, GLuint y, GLuint z, GLuint w, GLuint h, GLuint d); 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