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gallium/util: support translating between uint and sint formats

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Without this, we can't for instance convert between r8_sint and
r8g8b8a8_sint. But that's pretty useful, so let's support it as well.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
This commit is contained in:
Erik Faye-Lund
2019-03-12 21:17:59 +01:00
parent f31b65f1c1
commit 749bbd39c7
1 changed files with 62 additions and 0 deletions
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src/gallium/auxiliary/util/u_format.c
+62
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@@ -716,6 +716,68 @@ util_format_translate(enum pipe_format dst_format,
FREE(tmp_row);
}
else if (util_format_is_pure_sint(src_format) ||
util_format_is_pure_sint(dst_format)) {
unsigned tmp_stride;
int *tmp_row;
if (!src_format_desc->unpack_rgba_sint ||
!dst_format_desc->pack_rgba_sint) {
return FALSE;
}
tmp_stride = MAX2(width, x_step) * 4 * sizeof *tmp_row;
tmp_row = MALLOC(y_step * tmp_stride);
if (!tmp_row)
return FALSE;
while (height >= y_step) {
src_format_desc->unpack_rgba_sint(tmp_row, tmp_stride, src_row, src_stride, width, y_step);
dst_format_desc->pack_rgba_sint(dst_row, dst_stride, tmp_row, tmp_stride, width, y_step);
dst_row += dst_step;
src_row += src_step;
height -= y_step;
}
if (height) {
src_format_desc->unpack_rgba_sint(tmp_row, tmp_stride, src_row, src_stride, width, height);
dst_format_desc->pack_rgba_sint(dst_row, dst_stride, tmp_row, tmp_stride, width, height);
}
FREE(tmp_row);
}
else if (util_format_is_pure_uint(src_format) ||
util_format_is_pure_uint(dst_format)) {
unsigned tmp_stride;
unsigned int *tmp_row;
if (!src_format_desc->unpack_rgba_uint ||
!dst_format_desc->pack_rgba_uint) {
return FALSE;
}
tmp_stride = MAX2(width, x_step) * 4 * sizeof *tmp_row;
tmp_row = MALLOC(y_step * tmp_stride);
if (!tmp_row)
return FALSE;
while (height >= y_step) {
src_format_desc->unpack_rgba_uint(tmp_row, tmp_stride, src_row, src_stride, width, y_step);
dst_format_desc->pack_rgba_uint(dst_row, dst_stride, tmp_row, tmp_stride, width, y_step);
dst_row += dst_step;
src_row += src_step;
height -= y_step;
}
if (height) {
src_format_desc->unpack_rgba_uint(tmp_row, tmp_stride, src_row, src_stride, width, height);
dst_format_desc->pack_rgba_uint(dst_row, dst_stride, tmp_row, tmp_stride, width, height);
}
FREE(tmp_row);
}
else {
unsigned tmp_stride;
float *tmp_row;