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video_core: Use un-shifted block sizes to avoid integer divisions

Browse Source 
Instead of storing all block width, height and depths in their shifted
form:

block_width = 1U << block_shift;

Store them like they are provided by the emulated hardware (their
block_shift form). This way we can avoid doing the costly
Common::AlignUp operation to align texture sizes and drop CPU integer
divisions with bitwise logic (defined in Common::AlignBits).
This commit is contained in:
ReinUsesLisp 2019-05-10 04:17:48 -03:00
parent 28d7c2f5a5
commit 345e73f2fe
10 changed files with 78 additions and 60 deletions
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5
src/common/alignment.h
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@ -19,6 +19,11 @@ constexpr T AlignDown(T value, std::size_t size) {
return static_cast<T>(value - value % size);
}
template <typename T>
constexpr T AlignBits(T value, T align) {
return (value + ((1 << align) - 1)) >> align << align;
}
template <typename T>
constexpr bool Is4KBAligned(T value) {
static_assert(std::is_unsigned_v<T>, "T must be an unsigned value.");

9
src/video_core/engines/fermi_2d.h
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@ -63,18 +63,15 @@ public:
}
u32 BlockWidth() const {
// The block width is stored in log2 format.
return 1 << block_width;
return block_width;
}
u32 BlockHeight() const {
// The block height is stored in log2 format.
return 1 << block_height;
return block_height;
}
u32 BlockDepth() const {
// The block depth is stored in log2 format.
return 1 << block_depth;
return block_depth;
}
};
static_assert(sizeof(Surface) == 0x28, "Surface has incorrect size");

4
src/video_core/engines/maxwell_dma.h
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@ -59,11 +59,11 @@ public:
};
u32 BlockHeight() const {
return 1 << block_height;
return block_height;
}
u32 BlockDepth() const {
return 1 << block_depth;
return block_depth;
}
};

3
src/video_core/texture_cache/surface_base.cpp
View File

@ -22,7 +22,6 @@ SurfaceBaseImpl::SurfaceBaseImpl(GPUVAddr gpu_addr, const SurfaceParams& params)
: params{params}, mipmap_sizes(params.num_levels),
mipmap_offsets(params.num_levels), gpu_addr{gpu_addr}, host_memory_size{
params.GetHostSizeInBytes()} {
std::size_t offset = 0;
for (u32 level = 0; level < params.num_levels; ++level) {
const std::size_t mipmap_size{params.GetGuestMipmapSize(level)};
@ -75,7 +74,7 @@ void SurfaceBaseImpl::LoadBuffer(Tegra::MemoryManager& memory_manager,
return;
}
if (params.is_tiled) {
ASSERT_MSG(params.block_width == 1, "Block width is defined as {} on texture target {}",
ASSERT_MSG(params.block_width == 0, "Block width is defined as {} on texture target {}",
params.block_width, static_cast<u32>(params.target));
for (u32 level = 0; level < params.num_levels; ++level) {
const std::size_t host_offset{params.GetHostMipmapLevelOffset(level)};

39
src/video_core/texture_cache/surface_params.cpp
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@ -96,9 +96,9 @@ SurfaceParams SurfaceParams::CreateForDepthBuffer(
SurfaceParams params;
params.is_tiled = type == Tegra::Engines::Maxwell3D::Regs::InvMemoryLayout::BlockLinear;
params.srgb_conversion = false;
params.block_width = 1 << std::min(block_width, 5U);
params.block_height = 1 << std::min(block_height, 5U);
params.block_depth = 1 << std::min(block_depth, 5U);
params.block_width = std::min(block_width, 5U);
params.block_height = std::min(block_height, 5U);
params.block_depth = std::min(block_depth, 5U);
params.tile_width_spacing = 1;
params.pixel_format = PixelFormatFromDepthFormat(format);
params.component_type = ComponentTypeFromDepthFormat(format);
@ -120,9 +120,9 @@ SurfaceParams SurfaceParams::CreateForFramebuffer(Core::System& system, std::siz
config.memory_layout.type == Tegra::Engines::Maxwell3D::Regs::InvMemoryLayout::BlockLinear;
params.srgb_conversion = config.format == Tegra::RenderTargetFormat::BGRA8_SRGB ||
config.format == Tegra::RenderTargetFormat::RGBA8_SRGB;
params.block_width = 1 << config.memory_layout.block_width;
params.block_height = 1 << config.memory_layout.block_height;
params.block_depth = 1 << config.memory_layout.block_depth;
params.block_width = config.memory_layout.block_width;
params.block_height = config.memory_layout.block_height;
params.block_depth = config.memory_layout.block_depth;
params.tile_width_spacing = 1;
params.pixel_format = PixelFormatFromRenderTargetFormat(config.format);
params.component_type = ComponentTypeFromRenderTarget(config.format);
@ -149,9 +149,9 @@ SurfaceParams SurfaceParams::CreateForFermiCopySurface(
params.is_tiled = !config.linear;
params.srgb_conversion = config.format == Tegra::RenderTargetFormat::BGRA8_SRGB ||
config.format == Tegra::RenderTargetFormat::RGBA8_SRGB;
params.block_width = params.is_tiled ? std::min(config.BlockWidth(), 32U) : 0,
params.block_height = params.is_tiled ? std::min(config.BlockHeight(), 32U) : 0,
params.block_depth = params.is_tiled ? std::min(config.BlockDepth(), 32U) : 0,
params.block_width = params.is_tiled ? std::min(config.BlockWidth(), 5U) : 0,
params.block_height = params.is_tiled ? std::min(config.BlockHeight(), 5U) : 0,
params.block_depth = params.is_tiled ? std::min(config.BlockDepth(), 5U) : 0,
params.tile_width_spacing = 1;
params.pixel_format = PixelFormatFromRenderTargetFormat(config.format);
params.component_type = ComponentTypeFromRenderTarget(config.format);
@ -190,9 +190,9 @@ u32 SurfaceParams::GetMipBlockHeight(u32 level) const {
const u32 height{GetMipHeight(level)};
const u32 default_block_height{GetDefaultBlockHeight()};
const u32 blocks_in_y{(height + default_block_height - 1) / default_block_height};
u32 block_height = 16;
while (block_height > 1 && blocks_in_y <= block_height * 4) {
block_height >>= 1;
u32 block_height = 4;
while (block_height > 0 && blocks_in_y <= (1U << block_height) * 4) {
--block_height;
}
return block_height;
}
@ -202,17 +202,17 @@ u32 SurfaceParams::GetMipBlockDepth(u32 level) const {
return this->block_depth;
}
if (is_layered) {
return 1;
return 0;
}
const u32 depth{GetMipDepth(level)};
u32 block_depth = 32;
while (block_depth > 1 && depth * 2 <= block_depth) {
block_depth >>= 1;
u32 block_depth = 5;
while (block_depth > 0 && depth * 2 <= (1U << block_depth)) {
--block_depth;
}
if (block_depth == 32 && GetMipBlockHeight(level) >= 4) {
return 16;
if (block_depth == 5 && GetMipBlockHeight(level) >= 2) {
return 4;
}
return block_depth;
@ -252,7 +252,8 @@ std::size_t SurfaceParams::GetLayerSize(bool as_host_size, bool uncompressed) co
size += GetInnerMipmapMemorySize(level, as_host_size, uncompressed);
}
if (is_tiled && is_layered) {
return Common::AlignUp(size, Tegra::Texture::GetGOBSize() * block_height * block_depth);
return Common::AlignBits(size,
Tegra::Texture::GetGOBSizeShift() + block_height + block_depth);
}
return size;
}

7
src/video_core/texture_cache/surface_params.h
View File

@ -54,12 +54,12 @@ public:
constexpr std::size_t rgb8_bpp = 4ULL;
// ASTC is uncompressed in software, in emulated as RGBA8
host_size_in_bytes = 0;
for (std::size_t level = 0; level < num_levels; level++) {
for (u32 level = 0; level < num_levels; ++level) {
const std::size_t width =
Common::AlignUp(GetMipWidth(level), GetDefaultBlockWidth());
const std::size_t height =
Common::AlignUp(GetMipHeight(level), GetDefaultBlockHeight());
const std::size_t depth = is_layered ? depth : GetMipDepth(level);
const std::size_t depth = is_layered ? this->depth : GetMipDepth(level);
host_size_in_bytes += width * height * depth * rgb8_bpp;
}
} else {
@ -96,7 +96,8 @@ public:
// Helper used for out of class size calculations
static std::size_t AlignLayered(const std::size_t out_size, const u32 block_height,
const u32 block_depth) {
return Common::AlignUp(out_size, Tegra::Texture::GetGOBSize() * block_height * block_depth);
return Common::AlignBits(out_size,
Tegra::Texture::GetGOBSizeShift() + block_height + block_depth);
}
/// Returns the offset in bytes in guest memory of a given mipmap level.

3
src/video_core/texture_cache/texture_cache.h
View File

@ -81,6 +81,9 @@ public:
if (!gpu_addr) {
return {};
}
if (gpu_addr == 0x1b7ec0000) {
// __debugbreak();
}
const auto params{SurfaceParams::CreateForTexture(system, config, entry)};
return GetSurface(gpu_addr, params, true).second;
}

55
src/video_core/textures/decoders.cpp
View File

@ -36,10 +36,16 @@ struct alignas(64) SwizzleTable {
std::array<std::array<u16, M>, N> values{};
};
constexpr u32 gob_size_x = 64;
constexpr u32 gob_size_y = 8;
constexpr u32 gob_size_z = 1;
constexpr u32 gob_size = gob_size_x * gob_size_y * gob_size_z;
constexpr u32 gob_size_x_shift = 6;
constexpr u32 gob_size_y_shift = 3;
constexpr u32 gob_size_z_shift = 0;
constexpr u32 gob_size_shift = gob_size_x_shift + gob_size_y_shift + gob_size_z_shift;
constexpr u32 gob_size_x = 1U << gob_size_x_shift;
constexpr u32 gob_size_y = 1U << gob_size_y_shift;
constexpr u32 gob_size_z = 1U << gob_size_z_shift;
constexpr u32 gob_size = 1U << gob_size_shift;
constexpr u32 fast_swizzle_align = 16;
constexpr auto legacy_swizzle_table = SwizzleTable<gob_size_y, gob_size_x, gob_size_z>();
@ -171,14 +177,16 @@ void SwizzledData(u8* const swizzled_data, u8* const unswizzled_data, const bool
void CopySwizzledData(u32 width, u32 height, u32 depth, u32 bytes_per_pixel,
u32 out_bytes_per_pixel, u8* const swizzled_data, u8* const unswizzled_data,
bool unswizzle, u32 block_height, u32 block_depth, u32 width_spacing) {
const u32 block_height_size{1U << block_height};
const u32 block_depth_size{1U << block_depth};
if (bytes_per_pixel % 3 != 0 && (width * bytes_per_pixel) % fast_swizzle_align == 0) {
SwizzledData<true>(swizzled_data, unswizzled_data, unswizzle, width, height, depth,
bytes_per_pixel, out_bytes_per_pixel, block_height, block_depth,
width_spacing);
bytes_per_pixel, out_bytes_per_pixel, block_height_size,
block_depth_size, width_spacing);
} else {
SwizzledData<false>(swizzled_data, unswizzled_data, unswizzle, width, height, depth,
bytes_per_pixel, out_bytes_per_pixel, block_height, block_depth,
width_spacing);
bytes_per_pixel, out_bytes_per_pixel, block_height_size,
block_depth_size, width_spacing);
}
}
@ -249,16 +257,18 @@ std::vector<u8> UnswizzleTexture(u8* address, u32 tile_size_x, u32 tile_size_y,
void SwizzleSubrect(u32 subrect_width, u32 subrect_height, u32 source_pitch, u32 swizzled_width,
u32 bytes_per_pixel, u8* swizzled_data, u8* unswizzled_data, u32 block_height) {
const u32 block_height_size{1U << block_height};
const u32 image_width_in_gobs{(swizzled_width * bytes_per_pixel + (gob_size_x - 1)) /
gob_size_x};
for (u32 line = 0; line < subrect_height; ++line) {
const u32 gob_address_y =
(line / (gob_size_y * block_height)) * gob_size * block_height * image_width_in_gobs +
((line % (gob_size_y * block_height)) / gob_size_y) * gob_size;
(line / (gob_size_y * block_height_size)) * gob_size * block_height_size *
image_width_in_gobs +
((line % (gob_size_y * block_height_size)) / gob_size_y) * gob_size;
const auto& table = legacy_swizzle_table[line % gob_size_y];
for (u32 x = 0; x < subrect_width; ++x) {
const u32 gob_address =
gob_address_y + (x * bytes_per_pixel / gob_size_x) * gob_size * block_height;
gob_address_y + (x * bytes_per_pixel / gob_size_x) * gob_size * block_height_size;
const u32 swizzled_offset = gob_address + table[(x * bytes_per_pixel) % gob_size_x];
u8* source_line = unswizzled_data + line * source_pitch + x * bytes_per_pixel;
u8* dest_addr = swizzled_data + swizzled_offset;
@ -271,14 +281,17 @@ void SwizzleSubrect(u32 subrect_width, u32 subrect_height, u32 source_pitch, u32
void UnswizzleSubrect(u32 subrect_width, u32 subrect_height, u32 dest_pitch, u32 swizzled_width,
u32 bytes_per_pixel, u8* swizzled_data, u8* unswizzled_data, u32 block_height,
u32 offset_x, u32 offset_y) {
const u32 block_height_size{1U << block_height};
for (u32 line = 0; line < subrect_height; ++line) {
const u32 y2 = line + offset_y;
const u32 gob_address_y = (y2 / (gob_size_y * block_height)) * gob_size * block_height +
((y2 % (gob_size_y * block_height)) / gob_size_y) * gob_size;
const u32 gob_address_y =
(y2 / (gob_size_y * block_height_size)) * gob_size * block_height_size +
((y2 % (gob_size_y * block_height_size)) / gob_size_y) * gob_size;
const auto& table = legacy_swizzle_table[y2 % gob_size_y];
for (u32 x = 0; x < subrect_width; ++x) {
const u32 x2 = (x + offset_x) * bytes_per_pixel;
const u32 gob_address = gob_address_y + (x2 / gob_size_x) * gob_size * block_height;
const u32 gob_address =
gob_address_y + (x2 / gob_size_x) * gob_size * block_height_size;
const u32 swizzled_offset = gob_address + table[x2 % gob_size_x];
u8* dest_line = unswizzled_data + line * dest_pitch + x * bytes_per_pixel;
u8* source_addr = swizzled_data + swizzled_offset;
@ -291,16 +304,18 @@ void UnswizzleSubrect(u32 subrect_width, u32 subrect_height, u32 dest_pitch, u32
void SwizzleKepler(const u32 width, const u32 height, const u32 dst_x, const u32 dst_y,
const u32 block_height, const std::size_t copy_size, const u8* source_data,
u8* swizzle_data) {
const u32 block_height_size{1U << block_height};
const u32 image_width_in_gobs{(width + gob_size_x - 1) / gob_size_x};
std::size_t count = 0;
for (std::size_t y = dst_y; y < height && count < copy_size; ++y) {
const std::size_t gob_address_y =
(y / (gob_size_y * block_height)) * gob_size * block_height * image_width_in_gobs +
((y % (gob_size_y * block_height)) / gob_size_y) * gob_size;
(y / (gob_size_y * block_height_size)) * gob_size * block_height_size *
image_width_in_gobs +
((y % (gob_size_y * block_height_size)) / gob_size_y) * gob_size;
const auto& table = legacy_swizzle_table[y % gob_size_y];
for (std::size_t x = dst_x; x < width && count < copy_size; ++x) {
const std::size_t gob_address =
gob_address_y + (x / gob_size_x) * gob_size * block_height;
gob_address_y + (x / gob_size_x) * gob_size * block_height_size;
const std::size_t swizzled_offset = gob_address + table[x % gob_size_x];
const u8* source_line = source_data + count;
u8* dest_addr = swizzle_data + swizzled_offset;
@ -356,9 +371,9 @@ std::vector<u8> DecodeTexture(const std::vector<u8>& texture_data, TextureFormat
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::AlignUp(width * bytes_per_pixel, gob_size_x);
const u32 aligned_height = Common::AlignUp(height, gob_size_y * block_height);
const u32 aligned_depth = Common::AlignUp(depth, gob_size_z * block_depth);
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);
return aligned_width * aligned_height * aligned_depth;
} else {
return width * height * depth * bytes_per_pixel;

4
src/video_core/textures/decoders.h
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@ -12,8 +12,8 @@ namespace Tegra::Texture {
// GOBSize constant. Calculated by 64 bytes in x multiplied by 8 y coords, represents
// an small rect of (64/bytes_per_pixel)X8.
inline std::size_t GetGOBSize() {
return 512;
inline std::size_t GetGOBSizeShift() {
return 9;
}
/// Unswizzles a swizzled texture without changing its format.

9
src/video_core/textures/texture.h
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@ -219,20 +219,17 @@ struct TICEntry {
u32 BlockWidth() const {
ASSERT(IsTiled());
// The block height is stored in log2 format.
return 1 << block_width;
return block_width;
}
u32 BlockHeight() const {
ASSERT(IsTiled());
// The block height is stored in log2 format.
return 1 << block_height;
return block_height;
}
u32 BlockDepth() const {
ASSERT(IsTiled());
// The block height is stored in log2 format.
return 1 << block_depth;
return block_depth;
}
bool IsTiled() const {