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VK: only enable non-opaque compositing if requested (#3630)

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This commit is contained in:
Daniele Bartolini
2026-03-13 03:47:58 +01:00
committed by GitHub
parent a73c12db8f
commit 20a637e3e6
1 changed files with 14 additions and 10 deletions
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24
src/renderer_vk.cpp
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@@ -1744,6 +1744,7 @@ VK_IMPORT_INSTANCE
| (m_deviceFeatures.imageCubeArray ? BGFX_CAPS_TEXTURE_CUBE_ARRAY : 0)
| BGFX_CAPS_TEXTURE_EXTERNAL
| BGFX_CAPS_TEXTURE_READ_BACK
| BGFX_CAPS_TRANSPARENT_BACKBUFFER
| BGFX_CAPS_VERTEX_ATTRIB_HALF
| BGFX_CAPS_VERTEX_ATTRIB_UINT10
| BGFX_CAPS_VERTEX_ID
@@ -7738,17 +7739,20 @@ retry:
VkCompositeAlphaFlagBitsKHR compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
if (surfaceCapabilities.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR)
if (m_resolution.reset & BGFX_RESET_TRANSPARENT_BACKBUFFER)
{
compositeAlpha = VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR;
}
else if (surfaceCapabilities.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR)
{
compositeAlpha = VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
}
else if (surfaceCapabilities.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_POST_MULTIPLIED_BIT_KHR)
{
compositeAlpha = VK_COMPOSITE_ALPHA_POST_MULTIPLIED_BIT_KHR;
if (surfaceCapabilities.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR)
{
compositeAlpha = VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR;
}
else if (surfaceCapabilities.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR)
{
compositeAlpha = VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
}
else if (surfaceCapabilities.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_POST_MULTIPLIED_BIT_KHR)
{
compositeAlpha = VK_COMPOSITE_ALPHA_POST_MULTIPLIED_BIT_KHR;
}
}
const VkImageUsageFlags imageUsageMask = 0