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Refactor Texture Swizzling

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The API for texture swizzling is now more concrete and abstracted out from `GuestTexture`, this allows for neater usage in certain areas such as MaxwellDMA while having a `GuestTexture` wrapper as well allowing for neater usage in those cases. 

The code itself has also been cleaned up slightly with all usage of `u32`s being upgraded to `size_t` as this is simply more efficient due to the compiler not needing to emulate wraparound behavior for integer types smaller than the processor word size.
This commit is contained in:
PixelyIon 2022-05-19 17:13:13 +05:30
parent 72473369b6
commit de300bfdbe
4 changed files with 223 additions and 147 deletions
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1
app/CMakeLists.txt
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@ -166,6 +166,7 @@ add_library(skyline SHARED
${source_DIR}/skyline/gpu/command_scheduler.cpp
${source_DIR}/skyline/gpu/descriptor_allocator.cpp
${source_DIR}/skyline/gpu/texture/texture.cpp
${source_DIR}/skyline/gpu/texture/layout.cpp
${source_DIR}/skyline/gpu/buffer.cpp
${source_DIR}/skyline/gpu/presentation_engine.cpp
${source_DIR}/skyline/gpu/shader_manager.cpp

196
app/src/main/cpp/skyline/gpu/texture/layout.cpp Normal file
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@ -0,0 +1,196 @@
// SPDX-License-Identifier: MPL-2.0
// Copyright © 2022 Skyline Team and Contributors (https://github.com/skyline-emu/)
#include "layout.h"
namespace skyline::gpu::texture {
// Reference on Block-linear tiling: https://gist.github.com/PixelyIon/d9c35050af0ef5690566ca9f0965bc32
constexpr u8 SectorWidth{16}; // The width of a sector in bytes
constexpr u8 SectorHeight{2}; // The height of a sector in lines
constexpr u8 GobWidth{64}; // The width of a GOB in bytes
constexpr u8 GobHeight{8}; // The height of a GOB in lines
size_t GetBlockLinearLayerSize(Dimensions dimensions, size_t formatBlockWidth, size_t formatBlockHeight, size_t formatBpb, size_t gobBlockHeight, size_t gobBlockDepth) {
size_t robLineWidth{util::DivideCeil<size_t>(dimensions.width, formatBlockWidth)}; //!< The width of the ROB in terms of format blocks
size_t robLineBytes{util::AlignUp(robLineWidth * formatBpb, GobWidth)}; //!< The amount of bytes in a single block
size_t robHeight{GobHeight * gobBlockHeight}; //!< The height of a single ROB (Row of Blocks) in lines
size_t surfaceHeightLines{util::DivideCeil<size_t>(dimensions.height, formatBlockHeight)}; //!< The height of the surface in lines
size_t surfaceHeightRobs{util::DivideCeil(surfaceHeightLines, robHeight)}; //!< The height of the surface in ROBs (Row Of Blocks, incl. padding ROB)
size_t robDepth{util::AlignUp(dimensions.depth, gobBlockDepth)}; //!< The depth of the surface in slices, aligned to include padding Z-axis GOBs
return robLineBytes * robHeight * surfaceHeightRobs * robDepth;
}
/**
* @brief Copies pixel data between a linear and blocklinear texture
*/
template<bool BlockLinearToLinear>
void CopyBlockLinearInternal(Dimensions dimensions,
size_t formatBlockWidth, size_t formatBlockHeight, size_t formatBpb,
size_t gobBlockHeight, size_t gobBlockDepth,
u8 *blockLinear, u8 *linear) {
size_t robWidthUnalignedBytes{(dimensions.width / formatBlockWidth) * formatBpb};
size_t robWidthBytes{util::AlignUp(robWidthUnalignedBytes, GobWidth)};
size_t robWidthBlocks{robWidthUnalignedBytes / GobWidth};
size_t blockHeight{gobBlockHeight};
size_t robHeight{GobHeight * blockHeight};
size_t surfaceHeightLines{dimensions.height / formatBlockHeight};
size_t surfaceHeightRobs{surfaceHeightLines / robHeight}; //!< The height of the surface in ROBs excluding padding ROBs
size_t blockDepth{std::min<size_t>(dimensions.depth, gobBlockDepth)};
size_t blockPaddingZ{SectorWidth * SectorHeight * blockHeight * (gobBlockDepth - blockDepth)};
bool hasPaddingBlock{robWidthUnalignedBytes != robWidthBytes};
size_t blockPaddingOffset{hasPaddingBlock ? (GobWidth - (robWidthBytes - robWidthUnalignedBytes)) : 0};
size_t robBytes{robWidthUnalignedBytes * robHeight};
size_t gobYOffset{robWidthUnalignedBytes * GobHeight};
size_t gobZOffset{robWidthUnalignedBytes * surfaceHeightLines};
u8 *sector{blockLinear};
auto deswizzleRob{[&](u8 *linearRob, auto isLastRob, size_t blockPaddingY = 0, size_t blockExtentY = 0) {
auto deswizzleBlock{[&](u8 *linearBlock, auto copySector) __attribute__((always_inline)) {
for (size_t gobZ{}; gobZ < blockDepth; gobZ++) { // Every Block contains `blockDepth` Z-axis GOBs (Slices)
u8 *linearGob{linearBlock};
for (size_t gobY{}; gobY < blockHeight; gobY++) { // Every Block contains `blockHeight` Y-axis GOBs
#pragma clang loop unroll_count(32)
for (size_t index{}; index < SectorWidth * SectorHeight; index++) { // Every Y-axis GOB contains `sectorWidth * sectorHeight` sectors
size_t xT{((index << 3) & 0b10000) | ((index << 1) & 0b100000)}; // Morton-Swizzle on the X-axis
size_t yT{((index >> 1) & 0b110) | (index & 0b1)}; // Morton-Swizzle on the Y-axis
if constexpr (!isLastRob) {
copySector(linearGob + (yT * robWidthUnalignedBytes) + xT, xT);
} else {
if (gobY != blockHeight - 1 || yT < blockExtentY)
copySector(linearGob + (yT * robWidthUnalignedBytes) + xT, xT);
else
sector += SectorWidth;
}
}
linearGob += gobYOffset; // Increment the linear GOB to the next Y-axis GOB
}
linearBlock += gobZOffset; // Increment the linear block to the next Z-axis GOB
}
sector += blockPaddingZ; // Skip over any padding Z-axis GOBs
}};
for (size_t block{}; block < robWidthBlocks; block++) { // Every ROB contains `surfaceWidthBlocks` blocks (excl. padding block)
deswizzleBlock(linearRob, [&](u8 *linearSector, size_t) __attribute__((always_inline)) {
if constexpr (BlockLinearToLinear)
std::memcpy(linearSector, sector, SectorWidth);
else
std::memcpy(sector, linearSector, SectorWidth);
sector += SectorWidth; // `sectorWidth` bytes are of sequential image data
});
if constexpr (isLastRob)
sector += blockPaddingY; // Skip over any padding at the end of this block
linearRob += GobWidth; // Increment the linear block to the next block (As Block Width = 1 GOB Width)
}
if (hasPaddingBlock)
deswizzleBlock(linearRob, [&](u8 *linearSector, size_t xT) __attribute__((always_inline)) {
#pragma clang loop unroll_count(4)
for (size_t pixelOffset{}; pixelOffset < SectorWidth; pixelOffset += formatBpb) {
if (xT < blockPaddingOffset)
if constexpr (BlockLinearToLinear)
std::memcpy(linearSector + pixelOffset, sector, formatBpb);
else
std::memcpy(sector, linearSector + pixelOffset, formatBpb);
sector += formatBpb;
xT += formatBpb;
}
});
}};
u8 *linearRob{linear};
for (size_t rob{}; rob < surfaceHeightRobs; rob++) { // Every Surface contains `surfaceHeightRobs` ROBs (excl. padding ROB)
deswizzleRob(linearRob, std::false_type{});
linearRob += robBytes; // Increment the linear ROB to the next ROB
}
if (surfaceHeightLines % robHeight != 0) {
blockHeight = (util::AlignUp(surfaceHeightLines, GobHeight) - (surfaceHeightRobs * robHeight)) / GobHeight; // Calculate the amount of Y GOBs which aren't padding
size_t alignedSurfaceLines{util::DivideCeil<size_t>(dimensions.height, formatBlockHeight)};
deswizzleRob(
linearRob,
std::true_type{},
(gobBlockHeight - blockHeight) * (SectorWidth * SectorWidth * SectorHeight), // Calculate padding at the end of a block to skip
util::IsAligned(alignedSurfaceLines, GobHeight) ? GobHeight : alignedSurfaceLines - util::AlignDown(alignedSurfaceLines, GobHeight) // Calculate the line relative to the start of the last GOB that is the cut-off point for the image
);
}
}
void CopyBlockLinearToLinear(Dimensions dimensions, size_t formatBlockWidth, size_t formatBlockHeight, size_t formatBpb, size_t gobBlockHeight, size_t gobBlockDepth, u8 *blockLinear, u8 *linear) {
CopyBlockLinearInternal<true>(
dimensions,
formatBlockWidth, formatBlockHeight, formatBpb,
gobBlockHeight, gobBlockDepth,
blockLinear, linear
);
}
void CopyBlockLinearToLinear(const GuestTexture &guest, u8 *blockLinear, u8 *linear) {
CopyBlockLinearInternal<true>(
guest.dimensions,
guest.format->blockWidth, guest.format->blockHeight, guest.format->bpb,
guest.tileConfig.blockHeight, guest.tileConfig.blockDepth,
blockLinear, linear
);
}
void CopyLinearToBlockLinear(Dimensions dimensions, size_t formatBlockWidth, size_t formatBlockHeight, size_t formatBpb, size_t gobBlockHeight, size_t gobBlockDepth, u8 *linear, u8 *blockLinear) {
CopyBlockLinearInternal<false>(
dimensions,
formatBlockWidth, formatBlockHeight, formatBpb,
gobBlockHeight, gobBlockDepth,
blockLinear, linear
);
}
void CopyLinearToBlockLinear(const GuestTexture &guest, u8 *linear, u8 *blockLinear) {
CopyBlockLinearInternal<false>(
guest.dimensions,
guest.format->blockWidth, guest.format->blockHeight, guest.format->bpb,
guest.tileConfig.blockHeight, guest.tileConfig.blockDepth,
blockLinear, linear
);
}
void CopyPitchLinearToLinear(const GuestTexture &guest, u8 *guestInput, u8 *linearOutput) {
auto sizeLine{guest.format->GetSize(guest.dimensions.width, 1)}; //!< The size of a single line of pixel data
auto sizeStride{guest.tileConfig.pitch}; //!< The size of a single stride of pixel data
auto inputLine{guestInput};
auto outputLine{linearOutput};
for (size_t line{}; line < guest.dimensions.height; line++) {
std::memcpy(outputLine, inputLine, sizeLine);
inputLine += sizeStride;
outputLine += sizeLine;
}
}
void CopyLinearToPitchLinear(const GuestTexture &guest, u8 *linearInput, u8 *guestOutput) {
auto sizeLine{guest.format->GetSize(guest.dimensions.width, 1)}; //!< The size of a single line of pixel data
auto sizeStride{guest.tileConfig.pitch}; //!< The size of a single stride of pixel data
auto inputLine{linearInput};
auto outputLine{guestOutput};
for (size_t line{}; line < guest.dimensions.height; line++) {
std::memcpy(outputLine, inputLine, sizeLine);
inputLine += sizeLine;
outputLine += sizeStride;
}
}
}

171
app/src/main/cpp/skyline/gpu/texture/layout.h
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@ -6,169 +6,48 @@
#include "texture.h"
namespace skyline::gpu::texture {
// Reference on Block-linear tiling: https://gist.github.com/PixelyIon/d9c35050af0ef5690566ca9f0965bc32
constexpr u8 SectorWidth{16}; // The width of a sector in bytes
constexpr u8 SectorHeight{2}; // The height of a sector in lines
constexpr u8 GobWidth{64}; // The width of a GOB in bytes
constexpr u8 GobHeight{8}; // The height of a GOB in lines
inline size_t GetBlockLinearLayerSize(const GuestTexture &guest) {
u32 blockBytes{util::AlignUp((guest.dimensions.width / guest.format->blockWidth) * guest.format->bpb, GobWidth)}; //!< The amount of bytes in a single block
u32 robHeight{GobHeight * static_cast<u32>(guest.tileConfig.blockHeight)}; //!< The height of a single ROB (Row of Blocks) in lines
u32 surfaceHeightLines{util::DivideCeil(guest.dimensions.height, u32{guest.format->blockHeight})}; //!< The height of the surface in lines
u32 surfaceHeightRobs{util::DivideCeil(surfaceHeightLines, robHeight)}; //!< The height of the surface in ROBs (Row Of Blocks, incl. padding ROB)
u32 robDepth{util::AlignUp(guest.dimensions.depth, guest.tileConfig.blockDepth)}; //!< The depth of the surface in slices, aligned to include padding Z-axis GOBs
return blockBytes * robHeight * surfaceHeightRobs * robDepth;
}
/**
* @return The size of a layer of the specified non-mipmapped block-slinear surface in bytes
*/
size_t GetBlockLinearLayerSize(Dimensions dimensions,
size_t formatBlockWidth, size_t formatBlockHeight, size_t formatBpb,
size_t gobBlockHeight, size_t gobBlockDepth);
/**
* @brief Copies pixel data between a linear and blocklinear texture
* @brief Copies the contents of a blocklinear texture to a linear output buffer
*/
template<typename CopyFunction>
void CopyBlockLinearInternal(const GuestTexture &guest, u8 *blockLinear, u8 *linear, CopyFunction copyFunction) {
u32 formatBpb{guest.format->bpb};
u32 robWidthUnalignedBytes{(guest.dimensions.width / guest.format->blockWidth) * formatBpb};
u32 robWidthBytes{util::AlignUp(robWidthUnalignedBytes, GobWidth)};
u32 robWidthBlocks{robWidthUnalignedBytes / GobWidth};
u32 blockHeight{guest.tileConfig.blockHeight};
u32 robHeight{GobHeight * blockHeight};
u32 surfaceHeightLines{guest.dimensions.height / guest.format->blockHeight};
u32 surfaceHeightRobs{surfaceHeightLines / robHeight}; //!< The height of the surface in ROBs excluding padding ROBs
u32 blockDepth{std::min(guest.dimensions.depth, static_cast<u32>(guest.tileConfig.blockDepth))};
u32 blockPaddingZ{SectorWidth * SectorHeight * blockHeight * (guest.tileConfig.blockDepth - blockDepth)};
bool hasPaddingBlock{robWidthUnalignedBytes != robWidthBytes};
u32 blockPaddingOffset{hasPaddingBlock ? (GobWidth - (robWidthBytes - robWidthUnalignedBytes)) : 0};
u32 robBytes{robWidthUnalignedBytes * robHeight};
u32 gobYOffset{robWidthUnalignedBytes * GobHeight};
u32 gobZOffset{robWidthUnalignedBytes * surfaceHeightLines};
u8 *sector{blockLinear};
auto deswizzleRob{[&](u8 *linearRob, auto isLastRob, u32 blockPaddingY = 0, u32 blockExtentY = 0) {
auto deswizzleBlock{[&](u8 *linearBlock, auto copySector) __attribute__((always_inline)) {
for (u32 gobZ{}; gobZ < blockDepth; gobZ++) { // Every Block contains `blockDepth` Z-axis GOBs (Slices)
u8 *linearGob{linearBlock};
for (u32 gobY{}; gobY < blockHeight; gobY++) { // Every Block contains `blockHeight` Y-axis GOBs
#pragma clang loop unroll_count(32)
for (u32 index{}; index < SectorWidth * SectorHeight; index++) { // Every Y-axis GOB contains `sectorWidth * sectorHeight` sectors
u32 xT{((index << 3) & 0b10000) | ((index << 1) & 0b100000)}; // Morton-Swizzle on the X-axis
u32 yT{((index >> 1) & 0b110) | (index & 0b1)}; // Morton-Swizzle on the Y-axis
if constexpr (!isLastRob) {
copySector(linearGob + (yT * robWidthUnalignedBytes) + xT, xT);
} else {
if (gobY != blockHeight - 1 || yT < blockExtentY)
copySector(linearGob + (yT * robWidthUnalignedBytes) + xT, xT);
else
sector += SectorWidth;
}
}
linearGob += gobYOffset; // Increment the linear GOB to the next Y-axis GOB
}
linearBlock += gobZOffset; // Increment the linear block to the next Z-axis GOB
}
sector += blockPaddingZ; // Skip over any padding Z-axis GOBs
}};
for (u32 block{}; block < robWidthBlocks; block++) { // Every ROB contains `surfaceWidthBlocks` blocks (excl. padding block)
deswizzleBlock(linearRob, [&](u8 *linearSector, u32) __attribute__((always_inline)) {
copyFunction(linearSector, sector, SectorWidth);
sector += SectorWidth; // `sectorWidth` bytes are of sequential image data
});
if constexpr (isLastRob)
sector += blockPaddingY; // Skip over any padding at the end of this block
linearRob += GobWidth; // Increment the linear block to the next block (As Block Width = 1 GOB Width)
}
if (hasPaddingBlock)
deswizzleBlock(linearRob, [&](u8 *linearSector, u32 xT) __attribute__((always_inline)) {
#pragma clang loop unroll_count(4)
for (u32 pixelOffset{}; pixelOffset < SectorWidth; pixelOffset += formatBpb) {
if (xT < blockPaddingOffset)
copyFunction(linearSector + pixelOffset, sector, formatBpb);
sector += formatBpb;
xT += formatBpb;
}
});
}};
u8 *linearRob{linear};
for (u32 rob{}; rob < surfaceHeightRobs; rob++) { // Every Surface contains `surfaceHeightRobs` ROBs (excl. padding ROB)
deswizzleRob(linearRob, std::false_type{});
linearRob += robBytes; // Increment the linear ROB to the next ROB
}
if (surfaceHeightLines % robHeight != 0) {
blockHeight = (util::AlignUp(surfaceHeightLines, GobHeight) - (surfaceHeightRobs * robHeight)) / GobHeight; // Calculate the amount of Y GOBs which aren't padding
u32 alignedSurfaceLines{util::DivideCeil(guest.dimensions.height, u32{guest.format->blockHeight})};
deswizzleRob(
linearRob,
std::true_type{},
(guest.tileConfig.blockHeight - blockHeight) * (SectorWidth * SectorWidth * SectorHeight), // Calculate padding at the end of a block to skip
util::IsAligned(alignedSurfaceLines, GobHeight) ? GobHeight : alignedSurfaceLines - util::AlignDown(alignedSurfaceLines, GobHeight) // Calculate the line relative to the start of the last GOB that is the cut-off point for the image
);
}
}
void CopyBlockLinearToLinear(Dimensions dimensions,
size_t formatBlockWidth, size_t formatBlockHeight, size_t formatBpb,
size_t gobBlockHeight, size_t gobBlockDepth,
u8 *blockLinear, u8 *linear);
/**
* @brief Copies the contents of a blocklinear guest texture to a linear output buffer
*/
inline void CopyBlockLinearToLinear(const GuestTexture &guest, u8 *guestInput, u8 *linearOutput) {
CopyBlockLinearInternal(guest, guestInput, linearOutput, std::memcpy);
}
void CopyBlockLinearToLinear(const GuestTexture &guest, u8 *blockLinear, u8 *linear);
/**
* @brief Copies the contents of a blocklinear texture to a linear output buffer
*/
void CopyLinearToBlockLinear(Dimensions dimensions,
size_t formatBlockWidth, size_t formatBlockHeight, size_t formatBpb,
size_t gobBlockHeight, size_t gobBlockDepth,
u8 *linear, u8 *blockLinear);
/**
* @brief Copies the contents of a blocklinear guest texture to a linear output buffer
*/
inline void CopyLinearToBlockLinear(const GuestTexture &guest, u8 *linearInput, u8 *guestOutput) {
CopyBlockLinearInternal(guest, guestOutput, linearInput, [](u8 *src, u8 *dst, size_t size) {
std::memcpy(dst, src, size);
});
}
void CopyLinearToBlockLinear(const GuestTexture &guest, u8 *linear, u8 *blockLinear);
/**
* @brief Copies the contents of a pitch-linear guest texture to a linear output buffer
* @note This does not support 3D textures
*/
inline void CopyPitchLinearToLinear(const GuestTexture &guest, u8 *guestInput, u8 *linearOutput) {
auto sizeLine{guest.format->GetSize(guest.dimensions.width, 1)}; //!< The size of a single line of pixel data
auto sizeStride{guest.tileConfig.pitch}; //!< The size of a single stride of pixel data
auto inputLine{guestInput};
auto outputLine{linearOutput};
for (u32 line{}; line < guest.dimensions.height; line++) {
std::memcpy(outputLine, inputLine, sizeLine);
inputLine += sizeStride;
outputLine += sizeLine;
}
}
void CopyPitchLinearToLinear(const GuestTexture &guest, u8 *guestInput, u8 *linearOutput);
/**
* @brief Copies the contents of a linear buffer to a pitch-linear guest texture
* @note This does not support 3D textures
*/
inline void CopyLinearToPitchLinear(const GuestTexture &guest, u8 *linearInput, u8 *guestOutput) {
auto sizeLine{guest.format->GetSize(guest.dimensions.width, 1)}; //!< The size of a single line of pixel data
auto sizeStride{guest.tileConfig.pitch}; //!< The size of a single stride of pixel data
auto inputLine{linearInput};
auto outputLine{guestOutput};
for (u32 line{}; line < guest.dimensions.height; line++) {
std::memcpy(outputLine, inputLine, sizeLine);
inputLine += sizeLine;
outputLine += sizeStride;
}
}
void CopyLinearToPitchLinear(const GuestTexture &guest, u8 *linearInput, u8 *guestOutput);
}

2
app/src/main/cpp/skyline/gpu/texture/texture.cpp
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@ -22,7 +22,7 @@ namespace skyline::gpu {
return layerStride = dimensions.height * tileConfig.pitch;
case texture::TileMode::Block:
return layerStride = static_cast<u32>(texture::GetBlockLinearLayerSize(*this));
return layerStride = static_cast<u32>(texture::GetBlockLinearLayerSize(dimensions, format->blockHeight, format->blockWidth, format->bpb, tileConfig.blockHeight, tileConfig.blockDepth));
}
}