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[Fix] (MG_Util/PixelStoreProcessor, MG_Backend/DirectVulkan): normalize packed RGBA uploads

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This commit is contained in:
swung0x48
2026-06-29 16:02:27 +08:00
parent a762346a3b
commit e7e6888768
5 changed files with 684 additions and 55 deletions
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MobileGL/MG_Util/Texture/PixelStoreProcessor.cpp
+32 -6
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@@ -70,6 +70,31 @@ namespace MobileGL::MG_Util::PixelStoreProcessor {
}
}
static Bool GetRgba8ByteSwizzleForUnpack(TextureInputFormat inputFormat, TexturePixelDataType inputDataType,
Vector<TextureSwizzleParam>& swizzle) {
if (inputFormat == TextureInputFormat::RGBA) {
if (inputDataType == TexturePixelDataType::UnsignedInt8888) {
swizzle = {TextureSwizzleParam::Alpha, TextureSwizzleParam::Blue, TextureSwizzleParam::Green,
TextureSwizzleParam::Red};
return true;
}
return false;
}
if (inputFormat == TextureInputFormat::BGRA) {
if (inputDataType == TexturePixelDataType::UnsignedInt8888) {
swizzle = {TextureSwizzleParam::Green, TextureSwizzleParam::Blue, TextureSwizzleParam::Alpha,
TextureSwizzleParam::Red};
} else {
swizzle = {TextureSwizzleParam::Blue, TextureSwizzleParam::Green, TextureSwizzleParam::Red,
TextureSwizzleParam::Alpha};
}
return true;
}
return false;
}
// assume 8 bit per channel
// swizzle.size() == channel count
void ProcessColorSwizzle(void* data, SizeT pixelCount, const Vector<TextureSwizzleParam>& swizzle) {
@@ -132,6 +157,10 @@ namespace MobileGL::MG_Util::PixelStoreProcessor {
Bool isByteType =
(inputDataType == TexturePixelDataType::UnsignedByte || inputDataType == TexturePixelDataType::Byte);
Vector<TextureSwizzleParam> colorSwizzle;
const Bool needColorSwizzle =
targetInternalFormat == TextureInternalFormat::RGBA8 &&
GetRgba8ByteSwizzleForUnpack(textureInputFormat, inputDataType, colorSwizzle);
for (Int z = 0; z < copyDepth; ++z) {
const Uint8* layerSrc = src;
Uint8* layerDst = dst;
@@ -149,13 +178,10 @@ namespace MobileGL::MG_Util::PixelStoreProcessor {
ProcessLSBFirst(layerDst, static_cast<SizeT>(copyWidth), 1);
}
if (textureInputFormat == TextureInputFormat::BGRA &&
targetInternalFormat == TextureInternalFormat::RGBA8) {
MGLOG_D("%s: Swizzle (BGRA)", __func__);
if (needColorSwizzle) {
MGLOG_D("%s: Swizzle RGBA8 unpack", __func__);
// MGLOG_D("%s: pixel0 before = %x", __func__, *((Uint32*)layerDst));
ProcessColorSwizzle(layerDst, static_cast<SizeT>(copyWidth),
{TextureSwizzleParam::Blue, TextureSwizzleParam::Green,
TextureSwizzleParam::Red, TextureSwizzleParam::Alpha});
ProcessColorSwizzle(layerDst, static_cast<SizeT>(copyWidth), colorSwizzle);
// MGLOG_D("%s: pixel0 after = %x", __func__, *((Uint32*)layerDst));
}
// else