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[Fix] (MG_Backend/DirectGLES): fix Super Duper Vanilla on Adreno

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- emulate RGB16 SNORM fallback writes
This commit is contained in:
swung0x48
2026-06-27 00:06:13 +08:00
parent 195330ccea
commit 5d6cb7dfed
8 changed files with 46 additions and 16 deletions
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MobileGL/MG_Backend/DirectGLES/Managers.cpp
+25 -9
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@@ -1316,17 +1316,33 @@ namespace MobileGL::MG_Backend::DirectGLES {
return true;
}
static Bool IsRGBA8SnormFallbackAttachment(
static Bool IsSnormFormat(TextureInternalFormat format) {
switch (format) {
case TextureInternalFormat::R8Snorm:
case TextureInternalFormat::RG8Snorm:
case TextureInternalFormat::RGB8Snorm:
case TextureInternalFormat::RGBA8Snorm:
case TextureInternalFormat::R16Snorm:
case TextureInternalFormat::RG16Snorm:
case TextureInternalFormat::RGB16Snorm:
case TextureInternalFormat::RGBA16Snorm:
return true;
default:
return false;
}
}
static Bool IsSnormFallbackAttachment(
const MG_State::GLState::FramebufferAttachmentObject& attachmentObject) {
if (attachmentObject.IsTexture()) {
const auto& textureObject = attachmentObject.GetTexture();
return textureObject && textureObject->GetFormat() == TextureInternalFormat::RGBA8Snorm &&
return textureObject && IsSnormFormat(textureObject->GetFormat()) &&
TextureImpl::ShouldUseCaveatTextureFormat(textureObject->GetFormat(), textureObject->GetTarget());
}
if (attachmentObject.IsRenderbuffer()) {
const auto& renderbufferObject = attachmentObject.GetRenderbuffer();
return renderbufferObject &&
renderbufferObject->GetInternalFormat() == TextureInternalFormat::RGBA8Snorm &&
IsSnormFormat(renderbufferObject->GetInternalFormat()) &&
TextureImpl::ShouldUseCaveatRenderbufferFormat(renderbufferObject->GetInternalFormat());
}
return false;
@@ -1391,11 +1407,11 @@ namespace MobileGL::MG_Backend::DirectGLES {
continue;
}
const auto& attachmentObject = stateFBOObject->GetAttachment(frontendBuf);
if (IsRGBA8SnormFallbackAttachment(attachmentObject)) {
if (IsSnormFallbackAttachment(attachmentObject)) {
clampOutputMask |= (1u << i);
}
}
PrgramImpl::g_rgba8SnormClampOutputMask = clampOutputMask;
PrgramImpl::g_snormFallbackClampOutputMask = clampOutputMask;
}
// 2. Remap read buffer
@@ -1510,7 +1526,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
} // namespace FramebufferImpl
namespace PrgramImpl {
Uint32 g_rgba8SnormClampOutputMask = 0;
Uint32 g_snormFallbackClampOutputMask = 0;
StateBackendObjectRegistry<MG_State::GLState::ProgramObject, BackendProgramObjectImpl> g_backendProgramObjects;
BackendProgramObjectImpl::BackendProgramObjectImpl() {
@@ -1555,7 +1571,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
MGLOG_D("Syncing program to backend. State program ID: %u, Backend ID: %u",
stateProgramObject->GetExternalIndex(), m_backendProgramId);
m_rgba8SnormClampOutputMask = g_rgba8SnormClampOutputMask;
m_snormFallbackClampOutputMask = g_snormFallbackClampOutputMask;
// Detach all existing shaders
GLint attachedCount = 0;
@@ -1631,8 +1647,8 @@ namespace MobileGL::MG_Backend::DirectGLES {
source = ForceFlatIntegerVaryings(source, glShaderType);
source = EmulateBaseInstanceInVertexShader(std::move(source), glShaderType);
source = ForceSupporterOutput(source);
source = ClampRGBA8SnormFallbackOutputs(std::move(source), glShaderType,
m_rgba8SnormClampOutputMask);
source = ClampSnormFallbackOutputs(std::move(source), glShaderType,
m_snormFallbackClampOutputMask);
// Patch for Photon compiler precision issue
String findStr = "1000000.0";