153 lines
5.5 KiB
C
153 lines
5.5 KiB
C
/**************************************************************************
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*
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* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "util/u_rect.h"
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#include "lp_context.h"
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#include "lp_flush.h"
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#include "lp_surface.h"
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#include "lp_texture.h"
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#include "lp_tile_size.h"
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/**
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* Adjust x, y, width, height to lie on tile bounds.
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*/
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static void
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adjust_to_tile_bounds(unsigned x, unsigned y, unsigned width, unsigned height,
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unsigned *x_tile, unsigned *y_tile,
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unsigned *w_tile, unsigned *h_tile)
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{
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*x_tile = x & ~(TILE_SIZE - 1);
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*y_tile = y & ~(TILE_SIZE - 1);
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*w_tile = ((x + width + TILE_SIZE - 1) & ~(TILE_SIZE - 1)) - *x_tile;
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*h_tile = ((y + height + TILE_SIZE - 1) & ~(TILE_SIZE - 1)) - *y_tile;
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}
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static void
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lp_surface_copy(struct pipe_context *pipe,
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struct pipe_surface *dst, unsigned dstx, unsigned dsty,
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struct pipe_surface *src, unsigned srcx, unsigned srcy,
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unsigned width, unsigned height)
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{
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struct llvmpipe_resource *src_tex = llvmpipe_resource(src->texture);
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struct llvmpipe_resource *dst_tex = llvmpipe_resource(dst->texture);
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const enum pipe_format format = src_tex->base.format;
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llvmpipe_flush_texture(pipe,
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dst->texture, dst->face, dst->level,
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0, /* flush_flags */
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FALSE, /* read_only */
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FALSE, /* cpu_access */
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FALSE); /* do_not_flush */
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llvmpipe_flush_texture(pipe,
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src->texture, src->face, src->level,
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0, /* flush_flags */
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TRUE, /* read_only */
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FALSE, /* cpu_access */
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FALSE); /* do_not_flush */
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/*
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printf("surface copy from %u to %u: %u,%u to %u,%u %u x %u\n",
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src_tex->id, dst_tex->id,
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srcx, srcy, dstx, dsty, width, height);
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*/
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/* set src tiles to linear layout */
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{
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unsigned tx, ty, tw, th;
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unsigned x, y;
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adjust_to_tile_bounds(srcx, srcy, width, height, &tx, &ty, &tw, &th);
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for (y = 0; y < th; y += TILE_SIZE) {
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for (x = 0; x < tw; x += TILE_SIZE) {
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(void) llvmpipe_get_texture_tile_linear(src_tex,
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src->face, src->level,
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LP_TEX_USAGE_READ,
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tx + x, ty + y);
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}
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}
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}
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/* set dst tiles to linear layout */
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{
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unsigned tx, ty, tw, th;
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unsigned x, y;
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enum lp_texture_usage usage;
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/* XXX for the tiles which are completely contained by the
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* dest rectangle, we could set the usage mode to WRITE_ALL.
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* Just test for the case of replacing the whole dest region for now.
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*/
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if (width == dst_tex->base.width0 && height == dst_tex->base.height0)
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usage = LP_TEX_USAGE_WRITE_ALL;
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else
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usage = LP_TEX_USAGE_READ_WRITE;
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adjust_to_tile_bounds(dstx, dsty, width, height, &tx, &ty, &tw, &th);
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for (y = 0; y < th; y += TILE_SIZE) {
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for (x = 0; x < tw; x += TILE_SIZE) {
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(void) llvmpipe_get_texture_tile_linear(dst_tex,
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dst->face, dst->level,
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usage,
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tx + x, ty + y);
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}
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}
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}
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/* copy */
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{
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const ubyte *src_linear_ptr
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= llvmpipe_get_texture_image_address(src_tex, src->face,
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src->level,
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LP_TEX_LAYOUT_LINEAR);
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ubyte *dst_linear_ptr
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= llvmpipe_get_texture_image_address(dst_tex, dst->face,
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dst->level,
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LP_TEX_LAYOUT_LINEAR);
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util_copy_rect(dst_linear_ptr, format,
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dst_tex->stride[dst->level],
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dstx, dsty,
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width, height,
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src_linear_ptr, src_tex->stride[src->level],
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srcx, srcy);
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}
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}
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void
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lp_init_surface_functions(struct llvmpipe_context *lp)
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{
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lp->pipe.surface_copy = lp_surface_copy;
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lp->pipe.surface_fill = util_surface_fill;
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}
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