mirror of
https://github.com/KytyPS5/KytyPS5.git
synced 2026-10-27 16:02:37 +00:00
nmzikandÇağatay Güçlü
0bef3fc0d3
Co-authored-by: Çağatay Güçlü <33038942+defektu@users.noreply.github.com>
68 lines
2.7 KiB
C++
68 lines
2.7 KiB
C++
#include "graphics/host_gpu/renderer/pipeline/blendMapping.h"
|
|
|
|
#include "graphics/guest_gpu/hardwareContext.h"
|
|
|
|
#include <initializer_list>
|
|
|
|
namespace Libs::Graphics {
|
|
|
|
bool BlendFactorIsDualSource(uint8_t factor) {
|
|
return factor >= static_cast<uint8_t>(Prospero::BlendFactor::kSrc1Color) &&
|
|
factor <= static_cast<uint8_t>(Prospero::BlendFactor::kOneMinusSrc1Alpha);
|
|
}
|
|
|
|
namespace {
|
|
|
|
bool BlendFactorIsConstantColor(uint8_t factor) {
|
|
return factor == static_cast<uint8_t>(Prospero::BlendFactor::kConstantColor) ||
|
|
factor == static_cast<uint8_t>(Prospero::BlendFactor::kOneMinusConstantColor);
|
|
}
|
|
|
|
} // namespace
|
|
|
|
BlendMappingSupport ClassifyBlendMapping(const HW::BlendControl& blend,
|
|
const Prospero::ColorComponentMapping& mapping) {
|
|
// Color constants are not swizzled with the exports; scalar constant alpha is unaffected.
|
|
if (!mapping.IsIdentity() && (BlendFactorIsConstantColor(blend.color_srcblend) ||
|
|
BlendFactorIsConstantColor(blend.color_destblend))) {
|
|
return BlendMappingSupport::Unsupported;
|
|
}
|
|
if (mapping.Map(3) == 3u) {
|
|
return BlendMappingSupport::Direct;
|
|
}
|
|
if (blend.separate_alpha_blend &&
|
|
blend.color_srcblend == static_cast<uint8_t>(Prospero::BlendFactor::kSrcAlpha) &&
|
|
blend.alpha_srcblend == static_cast<uint8_t>(Prospero::BlendFactor::kOne) &&
|
|
blend.color_destblend == static_cast<uint8_t>(Prospero::BlendFactor::kOneMinusSrcAlpha) &&
|
|
blend.alpha_destblend == blend.color_destblend &&
|
|
blend.color_comb_fcn == static_cast<uint8_t>(Prospero::BlendOp::kAdd) &&
|
|
blend.alpha_comb_fcn == blend.color_comb_fcn) {
|
|
return BlendMappingSupport::SourceAlphaOne;
|
|
}
|
|
// Moving alpha requires the same equation for all channels.
|
|
if (blend.separate_alpha_blend && (blend.alpha_srcblend != blend.color_srcblend ||
|
|
blend.alpha_destblend != blend.color_destblend ||
|
|
blend.alpha_comb_fcn != blend.color_comb_fcn)) {
|
|
return BlendMappingSupport::Unsupported;
|
|
}
|
|
auto support = BlendMappingSupport::Direct;
|
|
for (const auto factor: {blend.color_srcblend, blend.color_destblend}) {
|
|
if (BlendFactorIsDualSource(factor)) {
|
|
return BlendMappingSupport::Unsupported;
|
|
}
|
|
switch (static_cast<Prospero::BlendFactor>(factor)) {
|
|
case Prospero::BlendFactor::kSrcAlpha:
|
|
case Prospero::BlendFactor::kOneMinusSrcAlpha:
|
|
support = BlendMappingSupport::SourceAlpha;
|
|
break;
|
|
case Prospero::BlendFactor::kDstAlpha:
|
|
case Prospero::BlendFactor::kOneMinusDstAlpha:
|
|
case Prospero::BlendFactor::kSrcAlphaSaturate: return BlendMappingSupport::Unsupported;
|
|
default: break;
|
|
}
|
|
}
|
|
return support;
|
|
}
|
|
|
|
} // namespace Libs::Graphics
|