/************************************************************************** * * 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 LP_TEXTURE_H #define LP_TEXTURE_H #include "pipe/p_state.h" #include "util/u_debug.h" #define LP_MAX_TEXTURE_2D_LEVELS 12 /* 2K x 2K for now */ #define LP_MAX_TEXTURE_3D_LEVELS 10 /* 512 x 512 x 512 for now */ #define LP_MAX_TEXTURE_LEVELS LP_MAX_TEXTURE_2D_LEVELS enum lp_texture_usage { LP_TEX_USAGE_READ = 100, LP_TEX_USAGE_READ_WRITE, LP_TEX_USAGE_WRITE_ALL }; /** Per-tile layout mode */ enum lp_texture_layout { LP_TEX_LAYOUT_NONE = 0, /**< no layout for the tile data yet */ LP_TEX_LAYOUT_TILED, /**< the tile data is in tiled layout */ LP_TEX_LAYOUT_LINEAR, /**< the tile data is in linear layout */ LP_TEX_LAYOUT_BOTH /**< the tile data is in both modes */ }; struct pipe_context; struct pipe_screen; struct llvmpipe_context; struct sw_displaytarget; /** * We keep one or two copies of the texture image data: one in a simple * linear layout (for texture sampling) and another in a tiled layout (for * render targets). We keep track of whether each image tile is linear * or tiled on a per-tile basis. */ /** A 1D/2D/3D image, one mipmap level */ struct llvmpipe_texture_image { void *data; }; /** * llvmpipe subclass of pipe_resource. A texture, drawing surface, * vertex buffer, const buffer, etc. * Textures are stored differently than othere types of objects such as * vertex buffers and const buffers. * The former are tiled and have per-tile layout flags. * The later are simple malloc'd blocks of memory. */ struct llvmpipe_resource { struct pipe_resource base; /** Row stride in bytes */ unsigned stride[LP_MAX_TEXTURE_LEVELS]; unsigned tiles_per_row[LP_MAX_TEXTURE_LEVELS]; /** * Display target, for textures with the PIPE_BIND_DISPLAY_TARGET * usage. */ struct sw_displaytarget *dt; /** * Malloc'ed data for regular textures, or a mapping to dt above. */ struct llvmpipe_texture_image tiled[LP_MAX_TEXTURE_LEVELS]; struct llvmpipe_texture_image linear[LP_MAX_TEXTURE_LEVELS]; /** * Data for non-texture resources. */ void *data; /** per-tile layout info */ enum lp_texture_layout *layout[PIPE_TEX_FACE_MAX][LP_MAX_TEXTURE_LEVELS]; boolean userBuffer; /** Is this a user-space buffer? */ unsigned timestamp; unsigned id; /**< temporary, for debugging */ }; struct llvmpipe_transfer { struct pipe_transfer base; unsigned long offset; }; /** cast wrappers */ static INLINE struct llvmpipe_resource * llvmpipe_resource(struct pipe_resource *pt) { return (struct llvmpipe_resource *) pt; } static INLINE const struct llvmpipe_resource * llvmpipe_resource_const(const struct pipe_resource *pt) { return (const struct llvmpipe_resource *) pt; } static INLINE struct llvmpipe_transfer * llvmpipe_transfer(struct pipe_transfer *pt) { return (struct llvmpipe_transfer *) pt; } void llvmpipe_init_screen_resource_funcs(struct pipe_screen *screen); void llvmpipe_init_context_resource_funcs(struct pipe_context *pipe); static INLINE unsigned llvmpipe_resource_stride(struct pipe_resource *texture, unsigned level) { struct llvmpipe_resource *lpt = llvmpipe_resource(texture); assert(level < LP_MAX_TEXTURE_2D_LEVELS); return lpt->stride[level]; } void * llvmpipe_resource_map(struct pipe_resource *texture, unsigned face, unsigned level, unsigned zslice, enum lp_texture_usage tex_usage, enum lp_texture_layout layout); void llvmpipe_resource_unmap(struct pipe_resource *texture, unsigned face, unsigned level, unsigned zslice); void * llvmpipe_resource_data(struct pipe_resource *resource); void * llvmpipe_get_texture_image_address(struct llvmpipe_resource *lpt, unsigned face, unsigned level, enum lp_texture_layout layout); void * llvmpipe_get_texture_image(struct llvmpipe_resource *resource, unsigned face, unsigned level, enum lp_texture_usage usage, enum lp_texture_layout layout); ubyte * llvmpipe_get_texture_tile_linear(struct llvmpipe_resource *lpt, unsigned face, unsigned level, enum lp_texture_usage usage, unsigned x, unsigned y); ubyte * llvmpipe_get_texture_tile(struct llvmpipe_resource *lpt, unsigned face, unsigned level, enum lp_texture_usage usage, unsigned x, unsigned y); extern void llvmpipe_init_screen_texture_funcs(struct pipe_screen *screen); extern void llvmpipe_init_context_texture_funcs(struct pipe_context *pipe); #endif /* LP_TEXTURE_H */