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tu: Implement fast border colors in sampler

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Vulkan has 3 fixed border colors all of which exist in HW.
Should be faster than additional level of indirection that
custom border colors introduce.

Signed-off-by: Danylo Piliaiev <dpiliaiev@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34786>
This commit is contained in:
Danylo Piliaiev 2025-05-01 14:49:15 +02:00 • committed by Marge Bot
parent 4690637acd
commit a1cf7054d9
1 changed files with 25 additions and 1 deletions
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26
src/freedreno/vulkan/tu_sampler.cc
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@ -28,6 +28,9 @@ tu_CreateSampler(VkDevice _device,
if (!sampler)
return vk_error(device, VK_ERROR_OUT_OF_HOST_MEMORY);
bool fast_border_color_enable = false;
enum a6xx_fast_border_color fast_border_color = A6XX_BORDER_COLOR_0_0_0_0;
const struct VkSamplerYcbcrConversionInfo *ycbcr_conversion =
vk_find_struct_const(pCreateInfo->pNext, SAMPLER_YCBCR_CONVERSION_INFO);
/* for non-custom border colors, the VK enum is translated directly to an offset in
@ -59,6 +62,24 @@ tu_CreateSampler(VkDevice _device,
&device->global_bo_map->bcolor[border_color], &color,
pCreateInfo->borderColor == VK_BORDER_COLOR_INT_CUSTOM_EXT);
border_color += TU_BORDER_COLOR_BUILTIN;
} else {
fast_border_color_enable = true;
switch (pCreateInfo->borderColor) {
case VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK:
case VK_BORDER_COLOR_INT_TRANSPARENT_BLACK:
fast_border_color = A6XX_BORDER_COLOR_0_0_0_0;
break;
case VK_BORDER_COLOR_FLOAT_OPAQUE_BLACK:
case VK_BORDER_COLOR_INT_OPAQUE_BLACK:
fast_border_color = A6XX_BORDER_COLOR_0_0_0_1;
break;
case VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE:
case VK_BORDER_COLOR_INT_OPAQUE_WHITE:
fast_border_color = A6XX_BORDER_COLOR_1_1_1_1;
break;
default:
unreachable("unknown border color");
}
}
unsigned aniso = pCreateInfo->anisotropyEnable ?
@ -84,7 +105,10 @@ tu_CreateSampler(VkDevice _device,
A6XX_TEX_SAMP_1_MAX_LOD(max_lod) |
COND(pCreateInfo->compareEnable,
A6XX_TEX_SAMP_1_COMPARE_FUNC(tu6_compare_func(pCreateInfo->compareOp)));
sampler->descriptor[2] = A6XX_TEX_SAMP_2_BCOLOR(border_color);
sampler->descriptor[2] =
A6XX_TEX_SAMP_2_BCOLOR(border_color) |
A6XX_TEX_SAMP_2_FASTBORDERCOLOR(fast_border_color) |
COND(fast_border_color_enable, A6XX_TEX_SAMP_2_FASTBORDERCOLOREN);
sampler->descriptor[3] = 0;
if (sampler->vk.reduction_mode != VK_SAMPLER_REDUCTION_MODE_WEIGHTED_AVERAGE) {