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/**************************************************************************
*
* Copyright 2003 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.
*
**************************************************************************/
#include "i915_surface.h"
#include "i915_resource.h"
#include "i915_blit.h"
#include "i915_screen.h"
#include "pipe/p_defines.h"
#include "util/u_inlines.h"
#include "util/u_math.h"
#include "util/u_format.h"
#include "util/u_memory.h"
/* Assumes all values are within bounds -- no checking at this level -
* do it higher up if required.
*/
static void
i915_surface_copy(struct pipe_context *pipe,
struct pipe_surface *dst,
unsigned dstx, unsigned dsty,
struct pipe_surface *src,
unsigned srcx, unsigned srcy, unsigned width, unsigned height)
{
struct i915_texture *dst_tex = i915_texture(dst->texture);
struct i915_texture *src_tex = i915_texture(src->texture);
struct pipe_resource *dpt = &dst_tex->b.b;
struct pipe_resource *spt = &src_tex->b.b;
assert( dst != src );
assert( util_format_get_blocksize(dpt->format) == util_format_get_blocksize(spt->format) );
assert( util_format_get_blockwidth(dpt->format) == util_format_get_blockwidth(spt->format) );
assert( util_format_get_blockheight(dpt->format) == util_format_get_blockheight(spt->format) );
assert( util_format_get_blockwidth(dpt->format) == 1 );
assert( util_format_get_blockheight(dpt->format) == 1 );
i915_copy_blit( i915_context(pipe),
FALSE,
util_format_get_blocksize(dpt->format),
(unsigned short) src_tex->stride, src_tex->buffer, src->offset,
(unsigned short) dst_tex->stride, dst_tex->buffer, dst->offset,
(short) srcx, (short) srcy, (short) dstx, (short) dsty, (short) width, (short) height );
}
static void
i915_surface_fill(struct pipe_context *pipe,
struct pipe_surface *dst,
unsigned dstx, unsigned dsty,
unsigned width, unsigned height, unsigned value)
{
struct i915_texture *tex = i915_texture(dst->texture);
struct pipe_resource *pt = &tex->b.b;
assert(util_format_get_blockwidth(pt->format) == 1);
assert(util_format_get_blockheight(pt->format) == 1);
i915_fill_blit( i915_context(pipe),
util_format_get_blocksize(pt->format),
(unsigned short) tex->stride,
tex->buffer, dst->offset,
(short) dstx, (short) dsty,
(short) width, (short) height,
value );
}
/*
* Screen surface functions
*/
static struct pipe_surface *
i915_get_tex_surface(struct pipe_screen *screen,
struct pipe_resource *pt,
unsigned face, unsigned level, unsigned zslice,
unsigned flags)
{
struct i915_texture *tex = i915_texture(pt);
struct pipe_surface *ps;
unsigned offset; /* in bytes */
if (pt->target == PIPE_TEXTURE_CUBE) {
offset = tex->image_offset[level][face];
}
else if (pt->target == PIPE_TEXTURE_3D) {
offset = tex->image_offset[level][zslice];
}
else {
offset = tex->image_offset[level][0];
assert(face == 0);
assert(zslice == 0);
}
ps = CALLOC_STRUCT(pipe_surface);
if (ps) {
pipe_reference_init(&ps->reference, 1);
pipe_resource_reference(&ps->texture, pt);
ps->format = pt->format;
ps->width = u_minify(pt->width0, level);
ps->height = u_minify(pt->height0, level);
ps->offset = offset;
ps->usage = flags;
}
return ps;
}
static void
i915_tex_surface_destroy(struct pipe_surface *surf)
{
pipe_resource_reference(&surf->texture, NULL);
FREE(surf);
}
/* Probably going to make blits work on textures rather than surfaces.
*/
void
i915_init_surface_functions(struct i915_context *i915)
{
i915->base.surface_copy = i915_surface_copy;
i915->base.surface_fill = i915_surface_fill;
}
/* No good reason for these to be in the screen.
*/
void
i915_init_screen_surface_functions(struct i915_screen *is)
{
is->base.get_tex_surface = i915_get_tex_surface;
is->base.tex_surface_destroy = i915_tex_surface_destroy;
}
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