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/************************************************************************** |
* |
* 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. |
* |
**************************************************************************/ |
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#ifndef I915_RESOURCE_H |
#define I915_RESOURCE_H |
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struct i915_screen; |
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#include "util/u_transfer.h" |
#include "util/u_debug.h" |
#include "i915_winsys.h" |
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struct i915_context; |
struct i915_screen; |
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struct i915_buffer { |
struct u_resource b; |
uint8_t *data; |
boolean free_on_destroy; |
}; |
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/* Texture transfer. */ |
struct i915_transfer { |
/* Base class. */ |
struct pipe_transfer b; |
struct pipe_resource *staging_texture; |
}; |
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#define I915_MAX_TEXTURE_2D_LEVELS 12 /* max 2048x2048 */ |
#define I915_MAX_TEXTURE_3D_LEVELS 9 /* max 256x256x256 */ |
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struct offset_pair { |
unsigned short nblocksx; |
unsigned short nblocksy; |
}; |
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struct i915_texture { |
struct u_resource b; |
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/* tiling flags */ |
enum i915_winsys_buffer_tile tiling; |
unsigned stride; |
unsigned depth_stride; /* per-image on i945? */ |
unsigned total_nblocksy; |
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unsigned nr_images[I915_MAX_TEXTURE_2D_LEVELS]; |
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/* 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]; |
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/* The data is held here: |
*/ |
struct i915_winsys_buffer *buffer; |
}; |
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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); |
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extern struct u_resource_vtbl i915_buffer_vtbl; |
extern struct u_resource_vtbl i915_texture_vtbl; |
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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; |
} |
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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; |
} |
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struct pipe_resource * |
i915_texture_create(struct pipe_screen *screen, |
const struct pipe_resource *template, |
boolean force_untiled); |
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struct pipe_resource * |
i915_texture_from_handle(struct pipe_screen * screen, |
const struct pipe_resource *template, |
struct winsys_handle *whandle); |
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struct pipe_resource * |
i915_user_buffer_create(struct pipe_screen *screen, |
void *ptr, |
unsigned bytes, |
unsigned usage); |
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struct pipe_resource * |
i915_buffer_create(struct pipe_screen *screen, |
const struct pipe_resource *template); |
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#endif /* I915_RESOURCE_H */ |