| /************************************************************************** |
| * |
| * Copyright 2008 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 I915_RESOURCE_H |
| #define I915_RESOURCE_H |
| |
| struct i915_screen; |
| |
| #include "util/u_transfer.h" |
| #include "util/u_debug.h" |
| #include "i915_winsys.h" |
| |
| |
| struct i915_context; |
| struct i915_screen; |
| |
| |
| struct i915_buffer { |
| struct u_resource b; |
| uint8_t *data; |
| boolean free_on_destroy; |
| }; |
| |
| |
| /* Texture transfer. */ |
| struct i915_transfer { |
| /* Base class. */ |
| struct pipe_transfer b; |
| struct pipe_resource *staging_texture; |
| }; |
| |
| |
| #define I915_MAX_TEXTURE_2D_LEVELS 12 /* max 2048x2048 */ |
| #define I915_MAX_TEXTURE_3D_LEVELS 9 /* max 256x256x256 */ |
| |
| |
| struct offset_pair { |
| unsigned short nblocksx; |
| unsigned short nblocksy; |
| }; |
| |
| struct i915_texture { |
| struct u_resource b; |
| |
| /* tiling flags */ |
| enum i915_winsys_buffer_tile tiling; |
| unsigned stride; |
| unsigned depth_stride; /* per-image on i945? */ |
| unsigned total_nblocksy; |
| |
| unsigned nr_images[I915_MAX_TEXTURE_2D_LEVELS]; |
| |
| /* Explicitly store the offset of each image for each cube face or |
| * depth value. |
| * |
| * Array [depth] off offsets. |
| */ |
| struct offset_pair *image_offset[I915_MAX_TEXTURE_2D_LEVELS]; |
| |
| /* The data is held here: |
| */ |
| struct i915_winsys_buffer *buffer; |
| }; |
| |
| unsigned i915_texture_offset(struct i915_texture *tex, |
| unsigned level, unsigned layer); |
| void i915_init_screen_resource_functions(struct i915_screen *is); |
| void i915_init_resource_functions(struct i915_context *i915); |
| |
| extern struct u_resource_vtbl i915_buffer_vtbl; |
| extern struct u_resource_vtbl i915_texture_vtbl; |
| |
| static INLINE struct i915_texture *i915_texture(struct pipe_resource *resource) |
| { |
| struct i915_texture *tex = (struct i915_texture *)resource; |
| assert(tex->b.vtbl == &i915_texture_vtbl); |
| return tex; |
| } |
| |
| static INLINE struct i915_buffer *i915_buffer(struct pipe_resource *resource) |
| { |
| struct i915_buffer *tex = (struct i915_buffer *)resource; |
| assert(tex->b.vtbl == &i915_buffer_vtbl); |
| return tex; |
| } |
| |
| struct pipe_resource * |
| i915_texture_create(struct pipe_screen *screen, |
| const struct pipe_resource *template, |
| boolean force_untiled); |
| |
| struct pipe_resource * |
| i915_texture_from_handle(struct pipe_screen * screen, |
| const struct pipe_resource *template, |
| struct winsys_handle *whandle); |
| |
| |
| struct pipe_resource * |
| i915_user_buffer_create(struct pipe_screen *screen, |
| void *ptr, |
| unsigned bytes, |
| unsigned usage); |
| |
| struct pipe_resource * |
| i915_buffer_create(struct pipe_screen *screen, |
| const struct pipe_resource *template); |
| |
| #endif /* I915_RESOURCE_H */ |