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freedreno/a4xx: fix stencil-textured border colors

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These are implemented with unusual sampler formats, so the usual approach
of looking at the format descriptors fails.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13806>
This commit is contained in:
Ilia Mirkin 2021-11-14 18:39:38 -05:00 • committed by Marge Bot
parent 20e8e11d64
commit 14087cb9ea
1 changed files with 22 additions and 4 deletions
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26
src/gallium/drivers/freedreno/freedreno_texture.c
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@ -168,12 +168,30 @@ fd_setup_border_colors(struct fd_texture_stateobj *tex, void *ptr,
const struct util_format_channel_description *chan =
&desc->channel[desc->swizzle[j]];
uint8_t native = desc->swizzle[j];
/* Special cases:
* - X24S8 is implemented with 8_8_8_8_UINT, so the 'native'
* location is actually 0 rather than 1
* - X32_S8X24_UINT has stencil with a secretly-S8_UINT resource
* so again we want 0 rather than 1
*
* In both cases, there is only one non-void format, so we don't
* have to be too careful.
*
* Note that this only affects a4xx -- a3xx did not support
* stencil texturing, and a5xx+ don't use this helper.
*/
if (tex->textures[i]->format == PIPE_FORMAT_X24S8_UINT ||
tex->textures[i]->format == PIPE_FORMAT_X32_S8X24_UINT) {
native = 0;
}
if (chan->pure_integer) {
bcolor32[desc->swizzle[j] + 4] = sampler->border_color.i[j];
bcolor[desc->swizzle[j] + 8] = sampler->border_color.i[j];
bcolor32[native + 4] = sampler->border_color.i[j];
bcolor[native + 8] = sampler->border_color.i[j];
} else {
bcolor32[desc->swizzle[j]] = fui(sampler->border_color.f[j]);
bcolor[desc->swizzle[j]] =
bcolor32[native] = fui(sampler->border_color.f[j]);
bcolor[native] =
_mesa_float_to_half(sampler->border_color.f[j]);
}
}