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common/alignment: Rename AlignBits to AlignUpLog2 

AlignUpLog2 describes what the function does better than AlignBits.
This commit is contained in:
ReinUsesLisp 2021-01-15 04:02:37 -03:00
parent 6676687694
commit fe494a0ccd
4 changed files with 15 additions and 16 deletions
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9
src/common/alignment.h
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@ -17,15 +17,14 @@ template <typename T>
}
template <typename T>
[[nodiscard]] constexpr T AlignDown(T value, std::size_t size) {
static_assert(std::is_unsigned_v<T>, "T must be an unsigned value.");
return static_cast<T>(value - value % size);
requires std::is_unsigned_v<T>[[nodiscard]] constexpr T AlignUpLog2(T value, size_t align_log2) {
return static_cast<T>((value + ((1ULL << align_log2) - 1)) >> align_log2 << align_log2);
}
template <typename T>
[[nodiscard]] constexpr T AlignBits(T value, std::size_t align) {
[[nodiscard]] constexpr T AlignDown(T value, std::size_t size) {
static_assert(std::is_unsigned_v<T>, "T must be an unsigned value.");
return static_cast<T>((value + ((1ULL << align) - 1)) >> align << align);
return static_cast<T>(value - value % size);
}
template <typename T>

4
src/video_core/texture_cache/accelerated_swizzle.cpp
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@ -27,7 +27,7 @@ BlockLinearSwizzle2DParams MakeBlockLinearSwizzle2DParams(const SwizzleParameter
const Extent3D num_tiles = swizzle.num_tiles;
const u32 bytes_per_block = BytesPerBlock(info.format);
const u32 stride_alignment = CalculateLevelStrideAlignment(info, swizzle.level);
const u32 stride = Common::AlignBits(num_tiles.width, stride_alignment) * bytes_per_block;
const u32 stride = Common::AlignUpLog2(num_tiles.width, stride_alignment) * bytes_per_block;
const u32 gobs_in_x = Common::DivCeilLog2(stride, GOB_SIZE_X_SHIFT);
return BlockLinearSwizzle2DParams{
.origin{0, 0, 0},
@ -47,7 +47,7 @@ BlockLinearSwizzle3DParams MakeBlockLinearSwizzle3DParams(const SwizzleParameter
const Extent3D num_tiles = swizzle.num_tiles;
const u32 bytes_per_block = BytesPerBlock(info.format);
const u32 stride_alignment = CalculateLevelStrideAlignment(info, swizzle.level);
const u32 stride = Common::AlignBits(num_tiles.width, stride_alignment) * bytes_per_block;
const u32 stride = Common::AlignUpLog2(num_tiles.width, stride_alignment) * bytes_per_block;
const u32 gobs_in_x = (stride + GOB_SIZE_X - 1) >> GOB_SIZE_X_SHIFT;
const u32 block_size = gobs_in_x << (GOB_SIZE_SHIFT + block.height + block.depth);

10
src/video_core/texture_cache/util.cpp
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@ -279,7 +279,7 @@ template <u32 GOB_EXTENT>
const bool is_small = IsSmallerThanGobSize(blocks, gob, info.block.depth);
const u32 alignment = is_small ? 0 : info.tile_width_spacing;
return Extent2D{
.width = Common::AlignBits(gobs.width, alignment),
.width = Common::AlignUpLog2(gobs.width, alignment),
.height = gobs.height,
};
}
@ -352,7 +352,7 @@ template <u32 GOB_EXTENT>
// https://github.com/Ryujinx/Ryujinx/blob/1c9aba6de1520aea5480c032e0ff5664ac1bb36f/Ryujinx.Graphics.Texture/SizeCalculator.cs#L134
if (tile_width_spacing > 0) {
const u32 alignment_log2 = GOB_SIZE_SHIFT + tile_width_spacing + block.height + block.depth;
return Common::AlignBits(size_bytes, alignment_log2);
return Common::AlignUpLog2(size_bytes, alignment_log2);
}
const u32 aligned_height = Common::AlignUp(size.height, tile_size_y);
while (block.height != 0 && aligned_height <= (1U << (block.height - 1)) * GOB_SIZE_Y) {
@ -528,9 +528,9 @@ template <u32 GOB_EXTENT>
const u32 alignment = StrideAlignment(num_tiles, info.block, bpp_log2, info.tile_width_spacing);
const Extent3D mip_block = AdjustMipBlockSize(num_tiles, info.block, 0);
return Extent3D{
.width = Common::AlignBits(num_tiles.width, alignment),
.height = Common::AlignBits(num_tiles.height, GOB_SIZE_Y_SHIFT + mip_block.height),
.depth = Common::AlignBits(num_tiles.depth, GOB_SIZE_Z_SHIFT + mip_block.depth),
.width = Common::AlignUpLog2(num_tiles.width, alignment),
.height = Common::AlignUpLog2(num_tiles.height, GOB_SIZE_Y_SHIFT + mip_block.height),
.depth = Common::AlignUpLog2(num_tiles.depth, GOB_SIZE_Z_SHIFT + mip_block.depth),
};
}

8
src/video_core/textures/decoders.cpp
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@ -49,7 +49,7 @@ void Swizzle(std::span<u8> output, std::span<const u8> input, u32 bytes_per_pixe
// We can configure here a custom pitch
// As it's not exposed 'width * bpp' will be the expected pitch.
const u32 pitch = width * bytes_per_pixel;
const u32 stride = Common::AlignBits(width, stride_alignment) * bytes_per_pixel;
const u32 stride = Common::AlignUpLog2(width, stride_alignment) * bytes_per_pixel;
const u32 gobs_in_x = Common::DivCeilLog2(stride, GOB_SIZE_X_SHIFT);
const u32 block_size = gobs_in_x << (GOB_SIZE_SHIFT + block_height + block_depth);
@ -217,9 +217,9 @@ void SwizzleKepler(const u32 width, const u32 height, const u32 dst_x, const u32
std::size_t CalculateSize(bool tiled, u32 bytes_per_pixel, u32 width, u32 height, u32 depth,
u32 block_height, u32 block_depth) {
if (tiled) {
const u32 aligned_width = Common::AlignBits(width * bytes_per_pixel, GOB_SIZE_X_SHIFT);
const u32 aligned_height = Common::AlignBits(height, GOB_SIZE_Y_SHIFT + block_height);
const u32 aligned_depth = Common::AlignBits(depth, GOB_SIZE_Z_SHIFT + block_depth);
const u32 aligned_width = Common::AlignUpLog2(width * bytes_per_pixel, GOB_SIZE_X_SHIFT);
const u32 aligned_height = Common::AlignUpLog2(height, GOB_SIZE_Y_SHIFT + block_height);
const u32 aligned_depth = Common::AlignUpLog2(depth, GOB_SIZE_Z_SHIFT + block_depth);
return aligned_width * aligned_height * aligned_depth;
} else {
return width * height * depth * bytes_per_pixel;