mirror of
https://github.com/starr-dusT/yuzu-mainline
synced 2024-03-05 21:12:25 -08:00
219 lines
8.6 KiB
C++
219 lines
8.6 KiB
C++
// Copyright 2018 yuzu Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#include <cmath>
|
|
#include <cstring>
|
|
#include "common/alignment.h"
|
|
#include "common/assert.h"
|
|
#include "core/memory.h"
|
|
#include "video_core/gpu.h"
|
|
#include "video_core/textures/decoders.h"
|
|
#include "video_core/textures/texture.h"
|
|
|
|
namespace Tegra::Texture {
|
|
|
|
/**
|
|
* This table represents the internal swizzle of a gob,
|
|
* in format 16 bytes x 2 sector packing.
|
|
* Calculates the offset of an (x, y) position within a swizzled texture.
|
|
* Taken from the Tegra X1 Technical Reference Manual. pages 1187-1188
|
|
*/
|
|
template <std::size_t N, std::size_t M, u32 Align>
|
|
struct alignas(64) SwizzleTable {
|
|
static_assert(M * Align == 64, "Swizzle Table does not align to GOB");
|
|
constexpr SwizzleTable() {
|
|
for (u32 y = 0; y < N; ++y) {
|
|
for (u32 x = 0; x < M; ++x) {
|
|
const u32 x2 = x * Align;
|
|
values[y][x] = static_cast<u16>(((x2 % 64) / 32) * 256 + ((y % 8) / 2) * 64 +
|
|
((x2 % 32) / 16) * 32 + (y % 2) * 16 + (x2 % 16));
|
|
}
|
|
}
|
|
}
|
|
const std::array<u16, M>& operator[](std::size_t index) const {
|
|
return values[index];
|
|
}
|
|
std::array<std::array<u16, M>, N> values{};
|
|
};
|
|
|
|
constexpr auto legacy_swizzle_table = SwizzleTable<8, 64, 1>();
|
|
constexpr auto fast_swizzle_table = SwizzleTable<8, 4, 16>();
|
|
|
|
static void LegacySwizzleData(u32 width, u32 height, u32 bytes_per_pixel, u32 out_bytes_per_pixel,
|
|
u8* swizzled_data, u8* unswizzled_data, bool unswizzle,
|
|
u32 block_height) {
|
|
std::array<u8*, 2> data_ptrs;
|
|
const std::size_t stride = width * bytes_per_pixel;
|
|
const std::size_t gobs_in_x = 64;
|
|
const std::size_t gobs_in_y = 8;
|
|
const std::size_t gobs_size = gobs_in_x * gobs_in_y;
|
|
const std::size_t image_width_in_gobs{(stride + gobs_in_x - 1) / gobs_in_x};
|
|
for (std::size_t y = 0; y < height; ++y) {
|
|
const std::size_t gob_y_address =
|
|
(y / (gobs_in_y * block_height)) * gobs_size * block_height * image_width_in_gobs +
|
|
(y % (gobs_in_y * block_height) / gobs_in_y) * gobs_size;
|
|
const auto& table = legacy_swizzle_table[y % gobs_in_y];
|
|
for (std::size_t x = 0; x < width; ++x) {
|
|
const std::size_t gob_address =
|
|
gob_y_address + (x * bytes_per_pixel / gobs_in_x) * gobs_size * block_height;
|
|
const std::size_t x2 = x * bytes_per_pixel;
|
|
const std::size_t swizzle_offset = gob_address + table[x2 % gobs_in_x];
|
|
const std::size_t pixel_index = (x + y * width) * out_bytes_per_pixel;
|
|
|
|
data_ptrs[unswizzle] = swizzled_data + swizzle_offset;
|
|
data_ptrs[!unswizzle] = unswizzled_data + pixel_index;
|
|
|
|
std::memcpy(data_ptrs[0], data_ptrs[1], bytes_per_pixel);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void FastSwizzleData(u32 width, u32 height, u32 bytes_per_pixel, u32 out_bytes_per_pixel,
|
|
u8* swizzled_data, u8* unswizzled_data, bool unswizzle,
|
|
u32 block_height) {
|
|
std::array<u8*, 2> data_ptrs;
|
|
const std::size_t stride{width * bytes_per_pixel};
|
|
const std::size_t gobs_in_x = 64;
|
|
const std::size_t gobs_in_y = 8;
|
|
const std::size_t gobs_size = gobs_in_x * gobs_in_y;
|
|
const std::size_t image_width_in_gobs{(stride + gobs_in_x - 1) / gobs_in_x};
|
|
const std::size_t copy_size{16};
|
|
for (std::size_t y = 0; y < height; ++y) {
|
|
const std::size_t initial_gob =
|
|
(y / (gobs_in_y * block_height)) * gobs_size * block_height * image_width_in_gobs +
|
|
(y % (gobs_in_y * block_height) / gobs_in_y) * gobs_size;
|
|
const std::size_t pixel_base{y * width * out_bytes_per_pixel};
|
|
const auto& table = fast_swizzle_table[y % gobs_in_y];
|
|
for (std::size_t xb = 0; xb < stride; xb += copy_size) {
|
|
const std::size_t gob_address{initial_gob +
|
|
(xb / gobs_in_x) * gobs_size * block_height};
|
|
const std::size_t swizzle_offset{gob_address + table[(xb / 16) % 4]};
|
|
const std::size_t out_x = xb * out_bytes_per_pixel / bytes_per_pixel;
|
|
const std::size_t pixel_index{out_x + pixel_base};
|
|
data_ptrs[unswizzle] = swizzled_data + swizzle_offset;
|
|
data_ptrs[!unswizzle] = unswizzled_data + pixel_index;
|
|
std::memcpy(data_ptrs[0], data_ptrs[1], copy_size);
|
|
}
|
|
}
|
|
}
|
|
|
|
void CopySwizzledData(u32 width, u32 height, u32 bytes_per_pixel, u32 out_bytes_per_pixel,
|
|
u8* swizzled_data, u8* unswizzled_data, bool unswizzle, u32 block_height) {
|
|
if (bytes_per_pixel % 3 != 0 && (width * bytes_per_pixel) % 16 == 0) {
|
|
FastSwizzleData(width, height, bytes_per_pixel, out_bytes_per_pixel, swizzled_data,
|
|
unswizzled_data, unswizzle, block_height);
|
|
} else {
|
|
LegacySwizzleData(width, height, bytes_per_pixel, out_bytes_per_pixel, swizzled_data,
|
|
unswizzled_data, unswizzle, block_height);
|
|
}
|
|
}
|
|
|
|
u32 BytesPerPixel(TextureFormat format) {
|
|
switch (format) {
|
|
case TextureFormat::DXT1:
|
|
case TextureFormat::DXN1:
|
|
// In this case a 'pixel' actually refers to a 4x4 tile.
|
|
return 8;
|
|
case TextureFormat::DXT23:
|
|
case TextureFormat::DXT45:
|
|
case TextureFormat::DXN2:
|
|
case TextureFormat::BC7U:
|
|
case TextureFormat::BC6H_UF16:
|
|
case TextureFormat::BC6H_SF16:
|
|
// In this case a 'pixel' actually refers to a 4x4 tile.
|
|
return 16;
|
|
case TextureFormat::R32_G32_B32:
|
|
return 12;
|
|
case TextureFormat::ASTC_2D_4X4:
|
|
case TextureFormat::ASTC_2D_8X8:
|
|
case TextureFormat::A8R8G8B8:
|
|
case TextureFormat::A2B10G10R10:
|
|
case TextureFormat::BF10GF11RF11:
|
|
case TextureFormat::R32:
|
|
case TextureFormat::R16_G16:
|
|
return 4;
|
|
case TextureFormat::A1B5G5R5:
|
|
case TextureFormat::B5G6R5:
|
|
case TextureFormat::G8R8:
|
|
case TextureFormat::R16:
|
|
return 2;
|
|
case TextureFormat::R8:
|
|
return 1;
|
|
case TextureFormat::R16_G16_B16_A16:
|
|
return 8;
|
|
case TextureFormat::R32_G32_B32_A32:
|
|
return 16;
|
|
case TextureFormat::R32_G32:
|
|
return 8;
|
|
default:
|
|
UNIMPLEMENTED_MSG("Format not implemented");
|
|
break;
|
|
}
|
|
}
|
|
|
|
std::vector<u8> UnswizzleTexture(VAddr address, u32 tile_size, u32 bytes_per_pixel, u32 width,
|
|
u32 height, u32 block_height) {
|
|
std::vector<u8> unswizzled_data(width * height * bytes_per_pixel);
|
|
CopySwizzledData(width / tile_size, height / tile_size, bytes_per_pixel, bytes_per_pixel,
|
|
Memory::GetPointer(address), unswizzled_data.data(), true, block_height);
|
|
return unswizzled_data;
|
|
}
|
|
|
|
std::vector<u8> DecodeTexture(const std::vector<u8>& texture_data, TextureFormat format, u32 width,
|
|
u32 height) {
|
|
std::vector<u8> rgba_data;
|
|
|
|
// TODO(Subv): Implement.
|
|
switch (format) {
|
|
case TextureFormat::DXT1:
|
|
case TextureFormat::DXT23:
|
|
case TextureFormat::DXT45:
|
|
case TextureFormat::DXN1:
|
|
case TextureFormat::DXN2:
|
|
case TextureFormat::BC7U:
|
|
case TextureFormat::BC6H_UF16:
|
|
case TextureFormat::BC6H_SF16:
|
|
case TextureFormat::ASTC_2D_4X4:
|
|
case TextureFormat::ASTC_2D_8X8:
|
|
case TextureFormat::A8R8G8B8:
|
|
case TextureFormat::A2B10G10R10:
|
|
case TextureFormat::A1B5G5R5:
|
|
case TextureFormat::B5G6R5:
|
|
case TextureFormat::R8:
|
|
case TextureFormat::G8R8:
|
|
case TextureFormat::BF10GF11RF11:
|
|
case TextureFormat::R32_G32_B32_A32:
|
|
case TextureFormat::R32_G32:
|
|
case TextureFormat::R32:
|
|
case TextureFormat::R16:
|
|
case TextureFormat::R16_G16:
|
|
case TextureFormat::R32_G32_B32:
|
|
// TODO(Subv): For the time being just forward the same data without any decoding.
|
|
rgba_data = texture_data;
|
|
break;
|
|
default:
|
|
UNIMPLEMENTED_MSG("Format not implemented");
|
|
break;
|
|
}
|
|
|
|
return rgba_data;
|
|
}
|
|
|
|
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 gobs_in_x = 64 / bytes_per_pixel;
|
|
const u32 gobs_in_y = 8;
|
|
const u32 gobs_in_z = 1;
|
|
const u32 aligned_width = Common::AlignUp(width, gobs_in_x);
|
|
const u32 aligned_height = Common::AlignUp(height, gobs_in_y * block_height);
|
|
const u32 aligned_depth = Common::AlignUp(depth, gobs_in_z * block_depth);
|
|
return aligned_width * aligned_height * aligned_depth * bytes_per_pixel;
|
|
} else {
|
|
return width * height * depth * bytes_per_pixel;
|
|
}
|
|
}
|
|
|
|
} // namespace Tegra::Texture
|