/* Copy a block of pixels from one surface to another. */
static void r300_resource_copy_region(struct pipe_context *pipe,
struct pipe_resource *dst,
unsigned dst_level,
unsigned dstx, unsigned dsty, unsigned dstz,
struct pipe_resource *src,
unsigned src_level,
const struct pipe_box *src_box)
{
enum pipe_format old_format = dst->format;
enum pipe_format new_format = old_format;
boolean is_depth;
if (!pipe->screen->is_format_supported(pipe->screen,
old_format, src->target,
src->nr_samples,
PIPE_BIND_RENDER_TARGET |
PIPE_BIND_SAMPLER_VIEW, 0) &&
util_format_is_plain(old_format)) {
switch (util_format_get_blocksize(old_format)) {
case 1:
new_format = PIPE_FORMAT_I8_UNORM;
break;
case 2:
new_format = PIPE_FORMAT_B4G4R4A4_UNORM;
break;
case 4:
new_format = PIPE_FORMAT_B8G8R8A8_UNORM;
break;
case 8:
new_format = PIPE_FORMAT_R16G16B16A16_UNORM;
break;
default:
debug_printf("r300: surface_copy: Unhandled format: %s. Falling back to software.\n"
"r300: surface_copy: Software fallback doesn't work for tiled textures.\n",
util_format_short_name(old_format));
}
}
is_depth = util_format_get_component_bits(src->format, UTIL_FORMAT_COLORSPACE_ZS, 0) != 0;
if (is_depth) {
r300_flush_depth_stencil(pipe, src, src_level, src_box->z);
}
if (old_format != new_format) {
r300_texture_reinterpret_format(pipe->screen,
dst, new_format);
r300_texture_reinterpret_format(pipe->screen,
src, new_format);
}
r300_hw_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box);
if (old_format != new_format) {
r300_texture_reinterpret_format(pipe->screen,
dst, old_format);
r300_texture_reinterpret_format(pipe->screen,
src, old_format);
}
}
/* Copy a block of pixels from one surface to another. */
static void r300_resource_copy_region(struct pipe_context *pipe,
struct pipe_resource *dst,
unsigned dst_level,
unsigned dstx, unsigned dsty, unsigned dstz,
struct pipe_resource *src,
unsigned src_level,
const struct pipe_box *src_box)
{
struct r300_context *r300 = r300_context(pipe);
struct pipe_framebuffer_state *fb =
(struct pipe_framebuffer_state*)r300->fb_state.state;
struct pipe_resource old_src = *src;
struct pipe_resource old_dst = *dst;
struct pipe_resource new_src = old_src;
struct pipe_resource new_dst = old_dst;
const struct util_format_description *desc =
util_format_description(dst->format);
struct pipe_box box;
/* Fallback for buffers. */
if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box);
return;
}
if (r300->zmask_in_use && !r300->locked_zbuffer) {
if (fb->zsbuf->texture == src ||
fb->zsbuf->texture == dst) {
r300_decompress_zmask(r300);
}
}
/* Handle non-renderable plain formats. */
if (desc->layout == UTIL_FORMAT_LAYOUT_PLAIN &&
(desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB ||
!pipe->screen->is_format_supported(pipe->screen,
src->format, src->target,
src->nr_samples,
PIPE_BIND_SAMPLER_VIEW) ||
!pipe->screen->is_format_supported(pipe->screen,
dst->format, dst->target,
dst->nr_samples,
PIPE_BIND_RENDER_TARGET))) {
switch (util_format_get_blocksize(old_dst.format)) {
case 1:
new_dst.format = PIPE_FORMAT_I8_UNORM;
break;
case 2:
new_dst.format = PIPE_FORMAT_B4G4R4A4_UNORM;
break;
case 4:
new_dst.format = PIPE_FORMAT_B8G8R8A8_UNORM;
break;
case 8:
new_dst.format = PIPE_FORMAT_R16G16B16A16_UNORM;
break;
default:
debug_printf("r300: surface_copy: Unhandled format: %s. Falling back to software.\n"
"r300: surface_copy: Software fallback doesn't work for tiled textures.\n",
util_format_short_name(dst->format));
}
new_src.format = new_dst.format;
}
/* Handle compressed formats. */
if (desc->layout == UTIL_FORMAT_LAYOUT_S3TC ||
desc->layout == UTIL_FORMAT_LAYOUT_RGTC) {
switch (util_format_get_blocksize(old_dst.format)) {
case 8:
/* 1 pixel = 4 bits,
* we set 1 pixel = 2 bytes ===> 4 times larger pixels. */
new_dst.format = PIPE_FORMAT_B4G4R4A4_UNORM;
break;
case 16:
/* 1 pixel = 8 bits,
* we set 1 pixel = 4 bytes ===> 4 times larger pixels. */
new_dst.format = PIPE_FORMAT_B8G8R8A8_UNORM;
break;
}
/* Since the pixels are 4 times larger, we must decrease
* the image size and the coordinates 4 times. */
new_src.format = new_dst.format;
new_dst.height0 = (new_dst.height0 + 3) / 4;
new_src.height0 = (new_src.height0 + 3) / 4;
dsty /= 4;
box = *src_box;
box.y /= 4;
box.height = (box.height + 3) / 4;
src_box = &box;
}
if (old_src.format != new_src.format)
r300_resource_set_properties(pipe->screen, src, &new_src);
if (old_dst.format != new_dst.format)
r300_resource_set_properties(pipe->screen, dst, &new_dst);
r300_hw_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box);
if (old_src.format != new_src.format)
r300_resource_set_properties(pipe->screen, src, &old_src);
if (old_dst.format != new_dst.format)
r300_resource_set_properties(pipe->screen, dst, &old_dst);
}
