OrdinaryMagician/vkdoom_m
OrdinaryMagician/vkdoom_m
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- implement VkPostprocess::RenderScreenQuad

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This commit is contained in:
Magnus Norddahl 2019-03-05 23:31:38 +01:00
commit c280153ac2
6 changed files with 304 additions and 36 deletions
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41
src/rendering/vulkan/system/vk_builders.cpp
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@ -1,6 +1,7 @@
#include "vk_builders.h"
#include "doomerrors.h"
#include "r_data/renderstyle.h"
#include <ShaderLang.h>
#include <GlslangToSpv.h>
@ -180,3 +181,43 @@ std::unique_ptr<VulkanShader> ShaderBuilder::create(VulkanDevice *device)
return std::make_unique<VulkanShader>(device, shaderModule);
}
/////////////////////////////////////////////////////////////////////////////
void GraphicsPipelineBuilder::setBlendMode(const FRenderStyle &style)
{
// Just in case Vulkan doesn't do this optimization itself
if (style.BlendOp == STYLEOP_Add && style.SrcAlpha == STYLEALPHA_One && style.DestAlpha == STYLEALPHA_Zero && style.Flags == 0)
{
colorBlendAttachment.blendEnable = VK_FALSE;
return;
}
static const int blendstyles[] = {
VK_BLEND_FACTOR_ZERO,
VK_BLEND_FACTOR_ONE,
VK_BLEND_FACTOR_SRC_ALPHA,
VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA,
VK_BLEND_FACTOR_SRC_COLOR,
VK_BLEND_FACTOR_ONE_MINUS_SRC_COLOR,
VK_BLEND_FACTOR_DST_COLOR,
VK_BLEND_FACTOR_ONE_MINUS_DST_COLOR,
};
static const int renderops[] = {
0, VK_BLEND_OP_ADD, VK_BLEND_OP_SUBTRACT, VK_BLEND_OP_REVERSE_SUBTRACT, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
};
int srcblend = blendstyles[style.SrcAlpha%STYLEALPHA_MAX];
int dstblend = blendstyles[style.DestAlpha%STYLEALPHA_MAX];
int blendequation = renderops[style.BlendOp & 15];
if (blendequation == -1) // This was a fuzz style.
{
srcblend = VK_BLEND_FACTOR_DST_COLOR;
dstblend = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
blendequation = VK_BLEND_OP_ADD;
}
setBlendMode((VkBlendOp)blendequation, (VkBlendFactor)srcblend, (VkBlendFactor)dstblend);
}