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/**************************************************************************
*
* 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.
*
**************************************************************************/
#include "util/u_rect.h"
#include "util/u_surface.h"
#include "lp_context.h"
#include "lp_flush.h"
#include "lp_limits.h"
#include "lp_surface.h"
#include "lp_texture.h"
/**
* Adjust x, y, width, height to lie on tile bounds.
*/
static void
adjust_to_tile_bounds(unsigned x, unsigned y, unsigned width, unsigned height,
unsigned *x_tile, unsigned *y_tile,
unsigned *w_tile, unsigned *h_tile)
{
*x_tile = x & ~(TILE_SIZE - 1);
*y_tile = y & ~(TILE_SIZE - 1);
*w_tile = ((x + width + TILE_SIZE - 1) & ~(TILE_SIZE - 1)) - *x_tile;
*h_tile = ((y + height + TILE_SIZE - 1) & ~(TILE_SIZE - 1)) - *y_tile;
}
static void
lp_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 llvmpipe_resource *src_tex = llvmpipe_resource(src->texture);
struct llvmpipe_resource *dst_tex = llvmpipe_resource(dst->texture);
const enum pipe_format format = src_tex->base.format;
llvmpipe_flush_resource(pipe,
dst->texture, dst->face, dst->level,
0, /* flush_flags */
FALSE, /* read_only */
FALSE, /* cpu_access */
FALSE); /* do_not_block */
llvmpipe_flush_resource(pipe,
src->texture, src->face, src->level,
0, /* flush_flags */
TRUE, /* read_only */
FALSE, /* cpu_access */
FALSE); /* do_not_block */
/*
printf("surface copy from %u to %u: %u,%u to %u,%u %u x %u\n",
src_tex->id, dst_tex->id,
srcx, srcy, dstx, dsty, width, height);
*/
/* set src tiles to linear layout */
{
unsigned tx, ty, tw, th;
unsigned x, y;
adjust_to_tile_bounds(srcx, srcy, width, height, &tx, &ty, &tw, &th);
for (y = 0; y < th; y += TILE_SIZE) {
for (x = 0; x < tw; x += TILE_SIZE) {
(void) llvmpipe_get_texture_tile_linear(src_tex,
src->face, src->level,
LP_TEX_USAGE_READ,
tx + x, ty + y);
}
}
}
/* set dst tiles to linear layout */
{
unsigned tx, ty, tw, th;
unsigned x, y;
enum lp_texture_usage usage;
/* XXX for the tiles which are completely contained by the
* dest rectangle, we could set the usage mode to WRITE_ALL.
* Just test for the case of replacing the whole dest region for now.
*/
if (width == dst_tex->base.width0 && height == dst_tex->base.height0)
usage = LP_TEX_USAGE_WRITE_ALL;
else
usage = LP_TEX_USAGE_READ_WRITE;
adjust_to_tile_bounds(dstx, dsty, width, height, &tx, &ty, &tw, &th);
for (y = 0; y < th; y += TILE_SIZE) {
for (x = 0; x < tw; x += TILE_SIZE) {
(void) llvmpipe_get_texture_tile_linear(dst_tex,
dst->face, dst->level,
usage,
tx + x, ty + y);
}
}
}
/* copy */
{
const ubyte *src_linear_ptr
= llvmpipe_get_texture_image_address(src_tex, src->face,
src->level,
LP_TEX_LAYOUT_LINEAR);
ubyte *dst_linear_ptr
= llvmpipe_get_texture_image_address(dst_tex, dst->face,
dst->level,
LP_TEX_LAYOUT_LINEAR);
util_copy_rect(dst_linear_ptr, format,
llvmpipe_resource_stride(&dst_tex->base, dst->level),
dstx, dsty,
width, height,
src_linear_ptr,
llvmpipe_resource_stride(&src_tex->base, src->level),
srcx, srcy);
}
}
void
llvmpipe_init_surface_functions(struct llvmpipe_context *lp)
{
lp->pipe.surface_copy = lp_surface_copy;
lp->pipe.surface_fill = util_surface_fill;
}
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