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textures/decoders: Replace magic numbers

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This commit is contained in:
Frederic Laing 2018-11-17 01:55:28 +01:00
parent 3c7ba00d73
commit 7a400e2191
1 changed files with 33 additions and 37 deletions
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70
src/video_core/textures/decoders.cpp
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@ -37,8 +37,14 @@ struct alignas(64) SwizzleTable {
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>();
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 fast_swizzle_align = 16;
constexpr auto legacy_swizzle_table = SwizzleTable<gob_size_y, gob_size_x, gob_size_z>();
constexpr auto fast_swizzle_table = SwizzleTable<gob_size_y, 4, fast_swizzle_align>();
/**
* This function manages ALL the GOBs(Group of Bytes) Inside a single block.
@ -52,10 +58,7 @@ void PreciseProcessBlock(u8* const swizzled_data, u8* const unswizzled_data, con
const u32 bytes_per_pixel, const u32 out_bytes_per_pixel) {
std::array<u8*, 2> data_ptrs;
u32 z_address = tile_offset;
const u32 gob_size_x = 64;
const u32 gob_size_y = 8;
const u32 gob_size_z = 1;
const u32 gob_size = gob_size_x * gob_size_y * gob_size_z;
for (u32 z = z_start; z < z_end; z++) {
u32 y_address = z_address;
u32 pixel_base = layer_z * z + y_start * stride_x;
@ -90,23 +93,19 @@ void FastProcessBlock(u8* const swizzled_data, u8* const unswizzled_data, const
u32 z_address = tile_offset;
const u32 x_startb = x_start * bytes_per_pixel;
const u32 x_endb = x_end * bytes_per_pixel;
constexpr u32 copy_size = 16;
constexpr u32 gob_size_x = 64;
constexpr u32 gob_size_y = 8;
constexpr u32 gob_size_z = 1;
const u32 gob_size = gob_size_x * gob_size_y * gob_size_z;
for (u32 z = z_start; z < z_end; z++) {
u32 y_address = z_address;
u32 pixel_base = layer_z * z + y_start * stride_x;
for (u32 y = y_start; y < y_end; y++) {
const auto& table = fast_swizzle_table[y % gob_size_y];
for (u32 xb = x_startb; xb < x_endb; xb += copy_size) {
const u32 swizzle_offset{y_address + table[(xb / copy_size) % 4]};
for (u32 xb = x_startb; xb < x_endb; xb += fast_swizzle_align) {
const u32 swizzle_offset{y_address + table[(xb / fast_swizzle_align) % 4]};
const u32 out_x = xb * out_bytes_per_pixel / bytes_per_pixel;
const u32 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);
std::memcpy(data_ptrs[0], data_ptrs[1], fast_swizzle_align);
}
pixel_base += stride_x;
if ((y + 1) % gob_size_y == 0)
@ -132,17 +131,15 @@ void SwizzledData(u8* const swizzled_data, u8* const unswizzled_data, const bool
auto div_ceil = [](const u32 x, const u32 y) { return ((x + y - 1) / y); };
const u32 stride_x = width * out_bytes_per_pixel;
const u32 layer_z = height * stride_x;
constexpr u32 gob_x_bytes = 64;
const u32 gob_elements_x = gob_x_bytes / bytes_per_pixel;
constexpr u32 gob_elements_y = 8;
constexpr u32 gob_elements_z = 1;
const u32 gob_elements_x = gob_size_x / bytes_per_pixel;
constexpr u32 gob_elements_y = gob_size_y;
constexpr u32 gob_elements_z = gob_size_z;
const u32 block_x_elements = gob_elements_x;
const u32 block_y_elements = gob_elements_y * block_height;
const u32 block_z_elements = gob_elements_z * block_depth;
const u32 blocks_on_x = div_ceil(width, block_x_elements);
const u32 blocks_on_y = div_ceil(height, block_y_elements);
const u32 blocks_on_z = div_ceil(depth, block_z_elements);
constexpr u32 gob_size = gob_x_bytes * gob_elements_y * gob_elements_z;
const u32 xy_block_size = gob_size * block_height;
const u32 block_size = xy_block_size * block_depth;
u32 tile_offset = 0;
@ -173,7 +170,7 @@ 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) {
if (bytes_per_pixel % 3 != 0 && (width * bytes_per_pixel) % 16 == 0) {
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);
} else {
@ -243,15 +240,17 @@ std::vector<u8> UnswizzleTexture(VAddr 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, VAddr swizzled_data, VAddr unswizzled_data,
u32 block_height) {
const u32 image_width_in_gobs{(swizzled_width * bytes_per_pixel + 63) / 64};
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 / (8 * block_height)) * 512 * block_height * image_width_in_gobs +
(line % (8 * block_height) / 8) * 512;
const auto& table = legacy_swizzle_table[line % 8];
(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;
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 / 64) * 512 * block_height;
const u32 swizzled_offset = gob_address + table[(x * bytes_per_pixel) % 64];
const u32 gob_address =
gob_address_y + (x * bytes_per_pixel / gob_size_x) * gob_size * block_height;
const u32 swizzled_offset = gob_address + table[(x * bytes_per_pixel) % gob_size_x];
const VAddr source_line = unswizzled_data + line * source_pitch + x * bytes_per_pixel;
const VAddr dest_addr = swizzled_data + swizzled_offset;
@ -265,13 +264,13 @@ void UnswizzleSubrect(u32 subrect_width, u32 subrect_height, u32 dest_pitch, u32
u32 block_height, u32 offset_x, u32 offset_y) {
for (u32 line = 0; line < subrect_height; ++line) {
const u32 y2 = line + offset_y;
const u32 gob_address_y =
(y2 / (8 * block_height)) * 512 * block_height + (y2 % (8 * block_height) / 8) * 512;
const auto& table = legacy_swizzle_table[y2 % 8];
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 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 / 64) * 512 * block_height;
const u32 swizzled_offset = gob_address + table[x2 % 64];
const u32 gob_address = gob_address_y + (x2 / gob_size_x) * gob_size * block_height;
const u32 swizzled_offset = gob_address + table[x2 % gob_size_x];
const VAddr dest_line = unswizzled_data + line * dest_pitch + x * bytes_per_pixel;
const VAddr source_addr = swizzled_data + swizzled_offset;
@ -325,12 +324,9 @@ 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) {
constexpr u32 gobs_in_x = 64;
constexpr u32 gobs_in_y = 8;
constexpr u32 gobs_in_z = 1;
const u32 aligned_width = Common::AlignUp(width * bytes_per_pixel, 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);
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);
return aligned_width * aligned_height * aligned_depth;
} else {
return width * height * depth * bytes_per_pixel;