}
-static void util_blitter_overlap_copy(struct blitter_context *blitter,
- struct pipe_surface *dst,
- unsigned dstx, unsigned dsty,
- struct pipe_surface *src,
- unsigned srcx, unsigned srcy,
- unsigned width, unsigned height)
-{
- struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
- struct pipe_context *pipe = ctx->pipe;
- struct pipe_screen *screen = pipe->screen;
-
- struct pipe_resource texTemp;
- struct pipe_resource *texture;
- struct pipe_surface *tex_surf;
-
- /* check whether the states are properly saved */
- blitter_check_saved_CSOs(ctx);
-
- memset(&texTemp, 0, sizeof(texTemp));
- texTemp.target = PIPE_TEXTURE_2D;
- texTemp.format = dst->texture->format; /* XXX verify supported by driver! */
- texTemp.last_level = 0;
- texTemp.width0 = width;
- texTemp.height0 = height;
- texTemp.depth0 = 1;
-
- texture = screen->resource_create(screen, &texTemp);
- if (!texture)
- return;
-
- tex_surf = screen->get_tex_surface(screen, texture, 0, 0, 0,
- PIPE_BIND_SAMPLER_VIEW |
- PIPE_BIND_RENDER_TARGET);
-
- /* blit from the src to the temp */
- util_blitter_do_copy(blitter, tex_surf, 0, 0,
- src, srcx, srcy,
- width, height,
- FALSE);
- util_blitter_do_copy(blitter, dst, dstx, dsty,
- tex_surf, 0, 0,
- width, height,
- FALSE);
- pipe_surface_reference(&tex_surf, NULL);
- pipe_resource_reference(&texture, NULL);
- blitter_restore_CSOs(ctx);
-}
void util_blitter_copy(struct blitter_context *blitter,
struct pipe_surface *dst,
return;
if (dst->texture == src->texture) {
- if (is_overlap(srcx, srcx + width, srcy, srcy + height,
- dstx, dstx + width, dsty, dsty + height)) {
- util_blitter_overlap_copy(blitter, dst, dstx, dsty, src, srcx, srcy,
- width, height);
- return;
+ assert(!is_overlap(srcx, srcx + width, srcy, srcy + height,
+ dstx, dstx + width, dsty, dsty + height))
}
}