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radeonsi: fix quant_mode selection for large negative values

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Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6685>
This commit is contained in:
Pierre-Eric Pelloux-Prayer
2020-09-11 11:52:04 +02:00
parent 7d853966df
commit c493bb9a57
1 changed files with 5 additions and 3 deletions
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8
src/gallium/drivers/radeonsi/si_state_viewport.c
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@@ -375,7 +375,9 @@ static void si_set_viewport_states(struct pipe_context *pctx, unsigned start_slo
unsigned h = scissor->maxy - scissor->miny;
unsigned max_extent = MAX2(w, h);
int max_corner = MAX2(scissor->maxx, scissor->maxy);
int max_corner = MAX2(
MAX2(abs(scissor->maxx), abs(scissor->maxy)),
MAX2(abs(scissor->minx), abs(scissor->miny)));
unsigned center_x = (scissor->maxx + scissor->minx) / 2;
unsigned center_y = (scissor->maxy + scissor->miny) / 2;
@@ -415,9 +417,9 @@ static void si_set_viewport_states(struct pipe_context *pctx, unsigned start_slo
* 4k x 4k of the render target.
*/
if (max_extent <= 1024 && max_corner < 4096) /* 4K scanline area for guardband */
if (max_extent <= 1024 && max_corner < (1 << 12)) /* 4K scanline area for guardband */
scissor->quant_mode = SI_QUANT_MODE_12_12_FIXED_POINT_1_4096TH;
else if (max_extent <= 4096) /* 16K scanline area for guardband */
else if (max_extent <= 4096 && max_corner < (1 << 14)) /* 16K scanline area for guardband */
scissor->quant_mode = SI_QUANT_MODE_14_10_FIXED_POINT_1_1024TH;
else /* 64K scanline area for guardband */
scissor->quant_mode = SI_QUANT_MODE_16_8_FIXED_POINT_1_256TH;