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Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_texture.h')
-rw-r--r-- | src/gallium/drivers/llvmpipe/lp_texture.h | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_texture.h b/src/gallium/drivers/llvmpipe/lp_texture.h new file mode 100644 index 0000000000..503b6a19a8 --- /dev/null +++ b/src/gallium/drivers/llvmpipe/lp_texture.h @@ -0,0 +1,237 @@ +/************************************************************************** + * + * 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" +#include "lp_limits.h" + + +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 row_stride[LP_MAX_TEXTURE_LEVELS]; + /** Image stride (for cube maps or 3D textures) in bytes */ + unsigned img_stride[LP_MAX_TEXTURE_LEVELS]; + unsigned tiles_per_row[LP_MAX_TEXTURE_LEVELS]; + unsigned tiles_per_image[LP_MAX_TEXTURE_LEVELS]; + /** Number of 3D slices or cube faces per level */ + unsigned num_slices_faces[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; + + /** array [level][face or slice][tile_y][tile_x] of layout values) */ + enum lp_texture_layout *layout[LP_MAX_TEXTURE_LEVELS]; + + boolean userBuffer; /** Is this a user-space buffer? */ + unsigned timestamp; + + unsigned id; /**< temporary, for debugging */ + +#ifdef DEBUG + /** for linked list */ + struct llvmpipe_resource *prev, *next; +#endif +}; + + +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 *resource, + unsigned level) +{ + struct llvmpipe_resource *lpr = llvmpipe_resource(resource); + assert(level < LP_MAX_TEXTURE_2D_LEVELS); + return lpr->row_stride[level]; +} + + +void * +llvmpipe_resource_map(struct pipe_resource *resource, + unsigned face_slice, + unsigned level, + unsigned zslice, + enum lp_texture_usage tex_usage, + enum lp_texture_layout layout); + +void +llvmpipe_resource_unmap(struct pipe_resource *resource, + unsigned face_slice, + unsigned level, + unsigned zslice); + + +void * +llvmpipe_resource_data(struct pipe_resource *resource); + + +unsigned +llvmpipe_resource_size(const struct pipe_resource *resource); + + +ubyte * +llvmpipe_get_texture_image_address(struct llvmpipe_resource *lpr, + unsigned face_slice, unsigned level, + enum lp_texture_layout layout); + +void * +llvmpipe_get_texture_image(struct llvmpipe_resource *resource, + unsigned face_slice, unsigned level, + enum lp_texture_usage usage, + enum lp_texture_layout layout); + +void * +llvmpipe_get_texture_image_all(struct llvmpipe_resource *lpr, + unsigned level, + enum lp_texture_usage usage, + enum lp_texture_layout layout); + +ubyte * +llvmpipe_get_texture_tile_linear(struct llvmpipe_resource *lpr, + unsigned face_slice, unsigned level, + enum lp_texture_usage usage, + unsigned x, unsigned y); + +ubyte * +llvmpipe_get_texture_tile(struct llvmpipe_resource *lpr, + unsigned face_slice, unsigned level, + enum lp_texture_usage usage, + unsigned x, unsigned y); + + + +extern void +llvmpipe_print_resources(void); + + +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 */ |