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GPU: Fix overlay destination alpha with postfx 

Also don't assume the image has premultiplied alpha.
This commit is contained in:
Stenzek 2025-01-22 18:23:13 +10:00
parent 0129679bb0
commit 8eaa1f312d
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1 changed files with 3 additions and 2 deletions
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5
src/core/gpu_presenter.cpp
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@ -188,7 +188,8 @@ bool GPUPresenter::CompileDisplayPipelines(bool display, bool deinterlace, bool
plconfig.blend.enable = true;
plconfig.blend.src_blend = GPUPipeline::BlendFunc::InvDstAlpha;
plconfig.blend.blend_op = GPUPipeline::BlendOp::Add;
plconfig.blend.dst_blend = GPUPipeline::BlendFunc::One;
plconfig.blend.dst_blend =
m_border_overlay_alpha_blend ? GPUPipeline::BlendFunc::One : GPUPipeline::BlendFunc::DstAlpha;
plconfig.blend.src_alpha_blend = GPUPipeline::BlendFunc::One;
plconfig.blend.alpha_blend_op = GPUPipeline::BlendOp::Add;
plconfig.blend.dst_alpha_blend = GPUPipeline::BlendFunc::Zero;
@ -510,7 +511,7 @@ GPUDevice::PresentResult GPUPresenter::RenderDisplay(GPUTexture* target, const G
DrawScreenQuad(overlay_rect, GSVector4::cxpr(0.0f, 0.0f, 1.0f, 1.0f), target_size, final_target_size,
DisplayRotation::Normal, prerotation);
g_gpu_device->SetPipeline(m_border_overlay_pipeline.get());
g_gpu_device->SetPipeline(m_present_copy_blend_pipeline.get());
g_gpu_device->SetTextureSampler(0, postfx_output, g_gpu_device->GetNearestSampler());
DrawScreenQuad(overlay_display_rect, src_uv_rect, target_size, final_target_size, DisplayRotation::Normal,
prerotation);