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Vulkan: Ensure fast path is used for non-RGBA formats when clearing

This commit is contained in:
Stenzek 2016-09-11 15:18:23 +10:00
parent f4944f006d
commit c290398320
1 changed files with 11 additions and 1 deletions
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12
Source/Core/VideoBackends/Vulkan/Renderer.cpp
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@ -337,8 +337,18 @@ void Renderer::ClearScreen(const EFBRectangle& rc, bool color_enable, bool alpha
// Native -> EFB coordinates // Native -> EFB coordinates
TargetRectangle target_rc = Renderer::ConvertEFBRectangle(rc); TargetRectangle target_rc = Renderer::ConvertEFBRectangle(rc);
// Determine whether the EFB has an alpha channel. If it doesn't, we can clear the alpha
// channel to 0xFF. This hopefully allows us to use the fast path in most cases.
if (bpmem.zcontrol.pixel_format == PEControl::RGB565_Z16 ||
bpmem.zcontrol.pixel_format == PEControl::RGB8_Z24 ||
bpmem.zcontrol.pixel_format == PEControl::Z24)
{
// Force alpha writes, and set the color to 0xFF.
alpha_enable = true;
color |= 0xFF000000;
}
// Fast path: when both color and alpha are enabled, we can blow away the entire buffer // Fast path: when both color and alpha are enabled, we can blow away the entire buffer
// TODO: Can we also do it when the buffer is not an RGBA format?
VkClearAttachment clear_attachments[2]; VkClearAttachment clear_attachments[2];
uint32_t num_clear_attachments = 0; uint32_t num_clear_attachments = 0;
if (color_enable && alpha_enable) if (color_enable && alpha_enable)