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radv: disable dual source blending in more situations

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According to PAL, there is more restrictions that RADV doesn't have.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19278>
This commit is contained in:
Samuel Pitoiset
2022-10-24 08:27:15 +00:00
committed by Marge Bot
parent df16fa43ff
commit e18f76d890
1 changed files with 24 additions and 3 deletions
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27
src/amd/vulkan/radv_pipeline.c
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@@ -704,6 +704,27 @@ radv_blend_check_commutativity(struct radv_blend_state *blend, VkBlendOp op, VkB
}
}
static bool
radv_can_enable_dual_src(const struct vk_color_blend_attachment_state *att)
{
VkBlendOp eqRGB = att->color_blend_op;
VkBlendFactor srcRGB = att->src_color_blend_factor;
VkBlendFactor dstRGB = att->dst_color_blend_factor;
VkBlendOp eqA = att->alpha_blend_op;
VkBlendFactor srcA = att->src_alpha_blend_factor;
VkBlendFactor dstA = att->dst_alpha_blend_factor;
bool eqRGB_minmax = eqRGB == VK_BLEND_OP_MIN || eqRGB == VK_BLEND_OP_MAX;
bool eqA_minmax = eqA == VK_BLEND_OP_MIN || eqA == VK_BLEND_OP_MAX;
assert(att->blend_enable);
if (!eqRGB_minmax && (is_dual_src(srcRGB) || is_dual_src(dstRGB)))
return true;
if (!eqA_minmax && (is_dual_src(srcA) || is_dual_src(dstA)))
return true;
return false;
}
static struct radv_blend_state
radv_pipeline_init_blend_state(struct radv_graphics_pipeline *pipeline,
const struct vk_graphics_pipeline_state *state,
@@ -755,9 +776,9 @@ radv_pipeline_init_blend_state(struct radv_graphics_pipeline *pipeline,
continue;
}
if (is_dual_src(srcRGB) || is_dual_src(dstRGB) || is_dual_src(srcA) || is_dual_src(dstA))
if (i == 0)
blend.mrt0_is_dual_src = true;
if (i == 0 && radv_can_enable_dual_src(&state->cb->attachments[i])) {
blend.mrt0_is_dual_src = true;
}
if (eqRGB == VK_BLEND_OP_MIN || eqRGB == VK_BLEND_OP_MAX) {
srcRGB = VK_BLEND_FACTOR_ONE;