radv/gfx10: fix intensity formats by setting ALPHA_IS_ON_MSB
This fixes dEQP-VK.rasterization.primitive_size.points.point_size_* This also fixes some black squares with the Sascha SSAO demo. Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com> Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
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@ -617,6 +617,15 @@ static unsigned gfx9_border_color_swizzle(const enum vk_swizzle swizzle[4])
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return bc_swizzle;
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}
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static bool vi_alpha_is_on_msb(struct radv_device *device, VkFormat format)
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{
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const struct vk_format_description *desc = vk_format_description(format);
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if (device->physical_device->rad_info.chip_class >= GFX10 && desc->nr_channels == 1)
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return desc->swizzle[3] == VK_SWIZZLE_X;
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return radv_translate_colorswap(format, false) <= 1;
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}
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/**
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* Build the sampler view descriptor for a texture (GFX10).
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*/
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@ -691,11 +700,9 @@ gfx10_make_texture_descriptor(struct radv_device *device,
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state[7] = 0;
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if (radv_dcc_enabled(image, first_level)) {
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unsigned swap = radv_translate_colorswap(vk_format, FALSE);
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state[6] |= S_00A018_MAX_UNCOMPRESSED_BLOCK_SIZE(V_028C78_MAX_BLOCK_SIZE_256B) |
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S_00A018_MAX_COMPRESSED_BLOCK_SIZE(V_028C78_MAX_BLOCK_SIZE_128B) |
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S_00A018_ALPHA_IS_ON_MSB(swap <= 1);
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S_00A018_ALPHA_IS_ON_MSB(vi_alpha_is_on_msb(device, vk_format));
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}
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/* Initialize the sampler view for FMASK. */
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@ -849,9 +856,7 @@ si_make_texture_descriptor(struct radv_device *device,
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state[5] |= S_008F24_LAST_ARRAY(last_layer);
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}
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if (image->dcc_offset) {
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unsigned swap = radv_translate_colorswap(vk_format, FALSE);
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state[6] = S_008F28_ALPHA_IS_ON_MSB(swap <= 1);
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state[6] = S_008F28_ALPHA_IS_ON_MSB(vi_alpha_is_on_msb(device, vk_format));
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} else {
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/* The last dword is unused by hw. The shader uses it to clear
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* bits in the first dword of sampler state.
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