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-rw-r--r--src/video_core/host_shaders/astc_decoder.comp271
-rw-r--r--src/video_core/renderer_opengl/util_shaders.cpp31
-rw-r--r--src/video_core/renderer_opengl/util_shaders.h1
-rw-r--r--src/video_core/renderer_vulkan/vk_compute_pass.cpp97
-rw-r--r--src/video_core/renderer_vulkan/vk_compute_pass.h5
-rw-r--r--src/video_core/textures/astc.cpp156
-rw-r--r--src/video_core/textures/astc.h111
7 files changed, 251 insertions, 421 deletions
diff --git a/src/video_core/host_shaders/astc_decoder.comp b/src/video_core/host_shaders/astc_decoder.comp
index c37f15bfd..f34c5f5d9 100644
--- a/src/video_core/host_shaders/astc_decoder.comp
+++ b/src/video_core/host_shaders/astc_decoder.comp
@@ -10,33 +10,27 @@
#define END_PUSH_CONSTANTS };
#define UNIFORM(n)
#define BINDING_INPUT_BUFFER 0
-#define BINDING_ENC_BUFFER 1
-#define BINDING_SWIZZLE_BUFFER 2
-#define BINDING_OUTPUT_IMAGE 3
+#define BINDING_OUTPUT_IMAGE 1
#else // ^^^ Vulkan ^^^ // vvv OpenGL vvv
#define BEGIN_PUSH_CONSTANTS
#define END_PUSH_CONSTANTS
#define UNIFORM(n) layout(location = n) uniform
-#define BINDING_SWIZZLE_BUFFER 0
-#define BINDING_INPUT_BUFFER 1
-#define BINDING_ENC_BUFFER 2
+#define BINDING_INPUT_BUFFER 0
#define BINDING_OUTPUT_IMAGE 0
#endif
-layout(local_size_x = 32, local_size_y = 32, local_size_z = 1) in;
+layout(local_size_x = 8, local_size_y = 8, local_size_z = 1) in;
BEGIN_PUSH_CONSTANTS
UNIFORM(1) uvec2 block_dims;
-
-UNIFORM(2) uint bytes_per_block_log2;
-UNIFORM(3) uint layer_stride;
-UNIFORM(4) uint block_size;
-UNIFORM(5) uint x_shift;
-UNIFORM(6) uint block_height;
-UNIFORM(7) uint block_height_mask;
+UNIFORM(2) uint layer_stride;
+UNIFORM(3) uint block_size;
+UNIFORM(4) uint x_shift;
+UNIFORM(5) uint block_height;
+UNIFORM(6) uint block_height_mask;
END_PUSH_CONSTANTS
struct EncodingData {
@@ -55,45 +49,35 @@ struct TexelWeightParams {
bool void_extent_hdr;
};
-// Swizzle data
-layout(binding = BINDING_SWIZZLE_BUFFER, std430) readonly buffer SwizzleTable {
- uint swizzle_table[];
-};
-
layout(binding = BINDING_INPUT_BUFFER, std430) readonly buffer InputBufferU32 {
- uint astc_data[];
-};
-
-// ASTC Encodings data
-layout(binding = BINDING_ENC_BUFFER, std430) readonly buffer EncodingsValues {
- EncodingData encoding_values[];
+ uvec4 astc_data[];
};
layout(binding = BINDING_OUTPUT_IMAGE, rgba8) uniform writeonly image2DArray dest_image;
-const uint GOB_SIZE_X = 64;
-const uint GOB_SIZE_Y = 8;
-const uint GOB_SIZE_Z = 1;
-const uint GOB_SIZE = GOB_SIZE_X * GOB_SIZE_Y * GOB_SIZE_Z;
-
const uint GOB_SIZE_X_SHIFT = 6;
const uint GOB_SIZE_Y_SHIFT = 3;
-const uint GOB_SIZE_Z_SHIFT = 0;
-const uint GOB_SIZE_SHIFT = GOB_SIZE_X_SHIFT + GOB_SIZE_Y_SHIFT + GOB_SIZE_Z_SHIFT;
-
-const uvec2 SWIZZLE_MASK = uvec2(GOB_SIZE_X - 1, GOB_SIZE_Y - 1);
+const uint GOB_SIZE_SHIFT = GOB_SIZE_X_SHIFT + GOB_SIZE_Y_SHIFT;
-const int BLOCK_SIZE_IN_BYTES = 16;
-
-const int BLOCK_INFO_ERROR = 0;
-const int BLOCK_INFO_VOID_EXTENT_HDR = 1;
-const int BLOCK_INFO_VOID_EXTENT_LDR = 2;
-const int BLOCK_INFO_NORMAL = 3;
+const uint BYTES_PER_BLOCK_LOG2 = 4;
const int JUST_BITS = 0;
const int QUINT = 1;
const int TRIT = 2;
+// ASTC Encodings data, sorted in ascending order based on their BitLength value
+// (see GetBitLength() function)
+EncodingData encoding_values[22] = EncodingData[](
+ EncodingData(JUST_BITS, 0, 0, 0), EncodingData(JUST_BITS, 1, 0, 0), EncodingData(TRIT, 0, 0, 0),
+ EncodingData(JUST_BITS, 2, 0, 0), EncodingData(QUINT, 0, 0, 0), EncodingData(TRIT, 1, 0, 0),
+ EncodingData(JUST_BITS, 3, 0, 0), EncodingData(QUINT, 1, 0, 0), EncodingData(TRIT, 2, 0, 0),
+ EncodingData(JUST_BITS, 4, 0, 0), EncodingData(QUINT, 2, 0, 0), EncodingData(TRIT, 3, 0, 0),
+ EncodingData(JUST_BITS, 5, 0, 0), EncodingData(QUINT, 3, 0, 0), EncodingData(TRIT, 4, 0, 0),
+ EncodingData(JUST_BITS, 6, 0, 0), EncodingData(QUINT, 4, 0, 0), EncodingData(TRIT, 5, 0, 0),
+ EncodingData(JUST_BITS, 7, 0, 0), EncodingData(QUINT, 5, 0, 0), EncodingData(TRIT, 6, 0, 0),
+ EncodingData(JUST_BITS, 8, 0, 0)
+);
+
// The following constants are expanded variants of the Replicate()
// function calls corresponding to the following arguments:
// value: index into the generated table
@@ -135,44 +119,37 @@ const uint REPLICATE_7_BIT_TO_8_TABLE[128] =
// Input ASTC texture globals
uint current_index = 0;
int bitsread = 0;
-uint total_bitsread = 0;
-uint local_buff[16];
+int total_bitsread = 0;
+uvec4 local_buff;
// Color data globals
-uint color_endpoint_data[16];
+uvec4 color_endpoint_data;
int color_bitsread = 0;
-uint total_color_bitsread = 0;
-int color_index = 0;
// Four values, two endpoints, four maximum paritions
uint color_values[32];
int colvals_index = 0;
// Weight data globals
-uint texel_weight_data[16];
+uvec4 texel_weight_data;
int texel_bitsread = 0;
-uint total_texel_bitsread = 0;
-int texel_index = 0;
bool texel_flag = false;
// Global "vectors" to be pushed into when decoding
-EncodingData result_vector[100];
+EncodingData result_vector[144];
int result_index = 0;
-EncodingData texel_vector[100];
+EncodingData texel_vector[144];
int texel_vector_index = 0;
uint unquantized_texel_weights[2][144];
uint SwizzleOffset(uvec2 pos) {
- pos = pos & SWIZZLE_MASK;
- return swizzle_table[pos.y * 64 + pos.x];
-}
-
-uint ReadTexel(uint offset) {
- // extract the 8-bit value from the 32-bit packed data.
- return bitfieldExtract(astc_data[offset / 4], int((offset * 8) & 24), 8);
+ uint x = pos.x;
+ uint y = pos.y;
+ return ((x % 64) / 32) * 256 + ((y % 8) / 2) * 64 + ((x % 32) / 16) * 32 +
+ (y % 2) * 16 + (x % 16);
}
// Replicates low num_bits such that [(to_bit - 1):(to_bit - 1 - from_bit)]
@@ -278,14 +255,10 @@ uint Hash52(uint p) {
return p;
}
-uint SelectPartition(uint seed, uint x, uint y, uint z, uint partition_count, bool small_block) {
- if (partition_count == 1) {
- return 0;
- }
+uint Select2DPartition(uint seed, uint x, uint y, uint partition_count, bool small_block) {
if (small_block) {
x <<= 1;
y <<= 1;
- z <<= 1;
}
seed += (partition_count - 1) * 1024;
@@ -299,10 +272,6 @@ uint SelectPartition(uint seed, uint x, uint y, uint z, uint partition_count, bo
uint seed6 = uint((rnum >> 20) & 0xF);
uint seed7 = uint((rnum >> 24) & 0xF);
uint seed8 = uint((rnum >> 28) & 0xF);
- uint seed9 = uint((rnum >> 18) & 0xF);
- uint seed10 = uint((rnum >> 22) & 0xF);
- uint seed11 = uint((rnum >> 26) & 0xF);
- uint seed12 = uint(((rnum >> 30) | (rnum << 2)) & 0xF);
seed1 = (seed1 * seed1);
seed2 = (seed2 * seed2);
@@ -312,12 +281,8 @@ uint SelectPartition(uint seed, uint x, uint y, uint z, uint partition_count, bo
seed6 = (seed6 * seed6);
seed7 = (seed7 * seed7);
seed8 = (seed8 * seed8);
- seed9 = (seed9 * seed9);
- seed10 = (seed10 * seed10);
- seed11 = (seed11 * seed11);
- seed12 = (seed12 * seed12);
- int sh1, sh2, sh3;
+ uint sh1, sh2;
if ((seed & 1) > 0) {
sh1 = (seed & 2) > 0 ? 4 : 5;
sh2 = (partition_count == 3) ? 6 : 5;
@@ -325,25 +290,19 @@ uint SelectPartition(uint seed, uint x, uint y, uint z, uint partition_count, bo
sh1 = (partition_count == 3) ? 6 : 5;
sh2 = (seed & 2) > 0 ? 4 : 5;
}
- sh3 = (seed & 0x10) > 0 ? sh1 : sh2;
-
- seed1 = (seed1 >> sh1);
- seed2 = (seed2 >> sh2);
- seed3 = (seed3 >> sh1);
- seed4 = (seed4 >> sh2);
- seed5 = (seed5 >> sh1);
- seed6 = (seed6 >> sh2);
- seed7 = (seed7 >> sh1);
- seed8 = (seed8 >> sh2);
- seed9 = (seed9 >> sh3);
- seed10 = (seed10 >> sh3);
- seed11 = (seed11 >> sh3);
- seed12 = (seed12 >> sh3);
-
- uint a = seed1 * x + seed2 * y + seed11 * z + (rnum >> 14);
- uint b = seed3 * x + seed4 * y + seed12 * z + (rnum >> 10);
- uint c = seed5 * x + seed6 * y + seed9 * z + (rnum >> 6);
- uint d = seed7 * x + seed8 * y + seed10 * z + (rnum >> 2);
+ seed1 >>= sh1;
+ seed2 >>= sh2;
+ seed3 >>= sh1;
+ seed4 >>= sh2;
+ seed5 >>= sh1;
+ seed6 >>= sh2;
+ seed7 >>= sh1;
+ seed8 >>= sh2;
+
+ uint a = seed1 * x + seed2 * y + (rnum >> 14);
+ uint b = seed3 * x + seed4 * y + (rnum >> 10);
+ uint c = seed5 * x + seed6 * y + (rnum >> 6);
+ uint d = seed7 * x + seed8 * y + (rnum >> 2);
a &= 0x3F;
b &= 0x3F;
@@ -368,58 +327,37 @@ uint SelectPartition(uint seed, uint x, uint y, uint z, uint partition_count, bo
}
}
-uint Select2DPartition(uint seed, uint x, uint y, uint partition_count, bool small_block) {
- return SelectPartition(seed, x, y, 0, partition_count, small_block);
-}
-
-uint ReadBit() {
- if (current_index >= local_buff.length()) {
+uint ExtractBits(uvec4 payload, int offset, int bits) {
+ if (bits <= 0) {
return 0;
}
- uint bit = bitfieldExtract(local_buff[current_index], bitsread, 1);
- ++bitsread;
- ++total_bitsread;
- if (bitsread == 8) {
- ++current_index;
- bitsread = 0;
+ int last_offset = offset + bits - 1;
+ int shifted_offset = offset >> 5;
+ if ((last_offset >> 5) == shifted_offset) {
+ return bitfieldExtract(payload[shifted_offset], offset & 31, bits);
}
- return bit;
+ int first_bits = 32 - (offset & 31);
+ int result_first = int(bitfieldExtract(payload[shifted_offset], offset & 31, first_bits));
+ int result_second = int(bitfieldExtract(payload[shifted_offset + 1], 0, bits - first_bits));
+ return result_first | (result_second << first_bits);
}
uint StreamBits(uint num_bits) {
- uint ret = 0;
- for (uint i = 0; i < num_bits; i++) {
- ret |= ((ReadBit() & 1) << i);
- }
+ int int_bits = int(num_bits);
+ uint ret = ExtractBits(local_buff, total_bitsread, int_bits);
+ total_bitsread += int_bits;
return ret;
}
-uint ReadColorBit() {
- uint bit = 0;
- if (texel_flag) {
- bit = bitfieldExtract(texel_weight_data[texel_index], texel_bitsread, 1);
- ++texel_bitsread;
- ++total_texel_bitsread;
- if (texel_bitsread == 8) {
- ++texel_index;
- texel_bitsread = 0;
- }
- } else {
- bit = bitfieldExtract(color_endpoint_data[color_index], color_bitsread, 1);
- ++color_bitsread;
- ++total_color_bitsread;
- if (color_bitsread == 8) {
- ++color_index;
- color_bitsread = 0;
- }
- }
- return bit;
-}
-
uint StreamColorBits(uint num_bits) {
uint ret = 0;
- for (uint i = 0; i < num_bits; i++) {
- ret |= ((ReadColorBit() & 1) << i);
+ int int_bits = int(num_bits);
+ if (texel_flag) {
+ ret = ExtractBits(texel_weight_data, texel_bitsread, int_bits);
+ texel_bitsread += int_bits;
+ } else {
+ ret = ExtractBits(color_endpoint_data, color_bitsread, int_bits);
+ color_bitsread += int_bits;
}
return ret;
}
@@ -596,22 +534,16 @@ void DecodeColorValues(uvec4 modes, uint num_partitions, uint color_data_bits) {
for (uint i = 0; i < num_partitions; i++) {
num_values += ((modes[i] >> 2) + 1) << 1;
}
- int range = 256;
- while (--range > 0) {
- EncodingData val = encoding_values[range];
+ // Find the largest encoding that's within color_data_bits
+ // TODO(ameerj): profile with binary search
+ int range = 0;
+ while (++range < encoding_values.length()) {
uint bit_length = GetBitLength(num_values, range);
- if (bit_length <= color_data_bits) {
- while (--range > 0) {
- EncodingData newval = encoding_values[range];
- if (newval.encoding != val.encoding && newval.num_bits != val.num_bits) {
- break;
- }
- }
- ++range;
+ if (bit_length > color_data_bits) {
break;
}
}
- DecodeIntegerSequence(range, num_values);
+ DecodeIntegerSequence(range - 1, num_values);
uint out_index = 0;
for (int itr = 0; itr < result_index; ++itr) {
if (out_index >= num_values) {
@@ -1028,7 +960,7 @@ int FindLayout(uint mode) {
return 5;
}
-TexelWeightParams DecodeBlockInfo(uint block_index) {
+TexelWeightParams DecodeBlockInfo() {
TexelWeightParams params = TexelWeightParams(uvec2(0), 0, false, false, false, false);
uint mode = StreamBits(11);
if ((mode & 0x1ff) == 0x1fc) {
@@ -1110,10 +1042,10 @@ TexelWeightParams DecodeBlockInfo(uint block_index) {
}
weight_index -= 2;
if ((mode_layout != 9) && ((mode & 0x200) != 0)) {
- const int max_weights[6] = int[6](9, 11, 15, 19, 23, 31);
+ const int max_weights[6] = int[6](7, 8, 9, 10, 11, 12);
params.max_weight = max_weights[weight_index];
} else {
- const int max_weights[6] = int[6](1, 2, 3, 4, 5, 7);
+ const int max_weights[6] = int[6](1, 2, 3, 4, 5, 6);
params.max_weight = max_weights[weight_index];
}
return params;
@@ -1144,8 +1076,8 @@ void FillVoidExtentLDR(ivec3 coord) {
}
}
-void DecompressBlock(ivec3 coord, uint block_index) {
- TexelWeightParams params = DecodeBlockInfo(block_index);
+void DecompressBlock(ivec3 coord) {
+ TexelWeightParams params = DecodeBlockInfo();
if (params.error_state) {
FillError(coord);
return;
@@ -1212,7 +1144,7 @@ void DecompressBlock(ivec3 coord, uint block_index) {
// Read color data...
uint color_data_bits = remaining_bits;
while (remaining_bits > 0) {
- int nb = int(min(remaining_bits, 8U));
+ int nb = int(min(remaining_bits, 32U));
uint b = StreamBits(nb);
color_endpoint_data[ced_pointer] = uint(bitfieldExtract(b, 0, nb));
++ced_pointer;
@@ -1254,25 +1186,20 @@ void DecompressBlock(ivec3 coord, uint block_index) {
ComputeEndpoints(endpoints[i][0], endpoints[i][1], color_endpoint_mode[i]);
}
- for (uint i = 0; i < 16; i++) {
- texel_weight_data[i] = local_buff[i];
- }
- for (uint i = 0; i < 8; i++) {
-#define REVERSE_BYTE(b) ((b * 0x0802U & 0x22110U) | (b * 0x8020U & 0x88440U)) * 0x10101U >> 16
- uint a = REVERSE_BYTE(texel_weight_data[i]);
- uint b = REVERSE_BYTE(texel_weight_data[15 - i]);
-#undef REVERSE_BYTE
- texel_weight_data[i] = uint(bitfieldExtract(b, 0, 8));
- texel_weight_data[15 - i] = uint(bitfieldExtract(a, 0, 8));
- }
+ texel_weight_data = local_buff;
+ texel_weight_data = bitfieldReverse(texel_weight_data).wzyx;
uint clear_byte_start =
(GetPackedBitSize(params.size, params.dual_plane, params.max_weight) >> 3) + 1;
- texel_weight_data[clear_byte_start - 1] =
- texel_weight_data[clear_byte_start - 1] &
+
+ uint byte_insert = ExtractBits(texel_weight_data, int(clear_byte_start - 1) * 8, 8) &
uint(
((1 << (GetPackedBitSize(params.size, params.dual_plane, params.max_weight) % 8)) - 1));
- for (uint i = 0; i < 16 - clear_byte_start; i++) {
- texel_weight_data[clear_byte_start + i] = 0U;
+ uint vec_index = (clear_byte_start - 1) >> 2;
+ texel_weight_data[vec_index] =
+ bitfieldInsert(texel_weight_data[vec_index], byte_insert, int((clear_byte_start - 1) % 4) * 8, 8);
+ for (uint i = clear_byte_start; i < 16; ++i) {
+ uint idx = i >> 2;
+ texel_weight_data[idx] = bitfieldInsert(texel_weight_data[idx], 0, int(i % 4) * 8, 8);
}
texel_flag = true; // use texel "vector" and bit stream in integer decoding
DecodeIntegerSequence(params.max_weight, GetNumWeightValues(params.size, params.dual_plane));
@@ -1281,8 +1208,11 @@ void DecompressBlock(ivec3 coord, uint block_index) {
for (uint j = 0; j < block_dims.y; j++) {
for (uint i = 0; i < block_dims.x; i++) {
- uint local_partition = Select2DPartition(partition_index, i, j, num_partitions,
+ uint local_partition = 0;
+ if (num_partitions > 1) {
+ local_partition = Select2DPartition(partition_index, i, j, num_partitions,
(block_dims.y * block_dims.x) < 32);
+ }
vec4 p;
uvec4 C0 = ReplicateByteTo16(endpoints[local_partition][0]);
uvec4 C1 = ReplicateByteTo16(endpoints[local_partition][1]);
@@ -1303,7 +1233,7 @@ void DecompressBlock(ivec3 coord, uint block_index) {
void main() {
uvec3 pos = gl_GlobalInvocationID;
- pos.x <<= bytes_per_block_log2;
+ pos.x <<= BYTES_PER_BLOCK_LOG2;
// Read as soon as possible due to its latency
const uint swizzle = SwizzleOffset(pos.xy);
@@ -1321,13 +1251,8 @@ void main() {
if (any(greaterThanEqual(coord, imageSize(dest_image)))) {
return;
}
- uint block_index =
- pos.z * gl_WorkGroupSize.x * gl_WorkGroupSize.y + pos.y * gl_WorkGroupSize.x + pos.x;
-
current_index = 0;
bitsread = 0;
- for (int i = 0; i < 16; i++) {
- local_buff[i] = ReadTexel(offset + i);
- }
- DecompressBlock(coord, block_index);
+ local_buff = astc_data[offset / 16];
+ DecompressBlock(coord);
}
diff --git a/src/video_core/renderer_opengl/util_shaders.cpp b/src/video_core/renderer_opengl/util_shaders.cpp
index 37a4d1d9d..333f35a1c 100644
--- a/src/video_core/renderer_opengl/util_shaders.cpp
+++ b/src/video_core/renderer_opengl/util_shaders.cpp
@@ -60,19 +60,14 @@ UtilShaders::UtilShaders(ProgramManager& program_manager_)
copy_bc4_program(MakeProgram(OPENGL_COPY_BC4_COMP)) {
const auto swizzle_table = Tegra::Texture::MakeSwizzleTable();
swizzle_table_buffer.Create();
- astc_buffer.Create();
glNamedBufferStorage(swizzle_table_buffer.handle, sizeof(swizzle_table), &swizzle_table, 0);
- glNamedBufferStorage(astc_buffer.handle, sizeof(ASTC_ENCODINGS_VALUES), &ASTC_ENCODINGS_VALUES,
- 0);
}
UtilShaders::~UtilShaders() = default;
void UtilShaders::ASTCDecode(Image& image, const ImageBufferMap& map,
std::span<const VideoCommon::SwizzleParameters> swizzles) {
- static constexpr GLuint BINDING_SWIZZLE_BUFFER = 0;
- static constexpr GLuint BINDING_INPUT_BUFFER = 1;
- static constexpr GLuint BINDING_ENC_BUFFER = 2;
+ static constexpr GLuint BINDING_INPUT_BUFFER = 0;
static constexpr GLuint BINDING_OUTPUT_IMAGE = 0;
const Extent2D tile_size{
@@ -80,34 +75,32 @@ void UtilShaders::ASTCDecode(Image& image, const ImageBufferMap& map,
.height = VideoCore::Surface::DefaultBlockHeight(image.info.format),
};
program_manager.BindComputeProgram(astc_decoder_program.handle);
- glBindBufferBase(GL_SHADER_STORAGE_BUFFER, BINDING_SWIZZLE_BUFFER, swizzle_table_buffer.handle);
- glBindBufferBase(GL_SHADER_STORAGE_BUFFER, BINDING_ENC_BUFFER, astc_buffer.handle);
-
glFlushMappedNamedBufferRange(map.buffer, map.offset, image.guest_size_bytes);
glUniform2ui(1, tile_size.width, tile_size.height);
+
// Ensure buffer data is valid before dispatching
glFlush();
for (const SwizzleParameters& swizzle : swizzles) {
const size_t input_offset = swizzle.buffer_offset + map.offset;
- const u32 num_dispatches_x = Common::DivCeil(swizzle.num_tiles.width, 32U);
- const u32 num_dispatches_y = Common::DivCeil(swizzle.num_tiles.height, 32U);
+ const u32 num_dispatches_x = Common::DivCeil(swizzle.num_tiles.width, 8U);
+ const u32 num_dispatches_y = Common::DivCeil(swizzle.num_tiles.height, 8U);
const auto params = MakeBlockLinearSwizzle2DParams(swizzle, image.info);
ASSERT(params.origin == (std::array<u32, 3>{0, 0, 0}));
ASSERT(params.destination == (std::array<s32, 3>{0, 0, 0}));
+ ASSERT(params.bytes_per_block_log2 == 4);
- glUniform1ui(2, params.bytes_per_block_log2);
- glUniform1ui(3, params.layer_stride);
- glUniform1ui(4, params.block_size);
- glUniform1ui(5, params.x_shift);
- glUniform1ui(6, params.block_height);
- glUniform1ui(7, params.block_height_mask);
+ glUniform1ui(2, params.layer_stride);
+ glUniform1ui(3, params.block_size);
+ glUniform1ui(4, params.x_shift);
+ glUniform1ui(5, params.block_height);
+ glUniform1ui(6, params.block_height_mask);
- glBindImageTexture(BINDING_OUTPUT_IMAGE, image.StorageHandle(), swizzle.level, GL_TRUE, 0,
- GL_WRITE_ONLY, GL_RGBA8);
// ASTC texture data
glBindBufferRange(GL_SHADER_STORAGE_BUFFER, BINDING_INPUT_BUFFER, map.buffer, input_offset,
image.guest_size_bytes - swizzle.buffer_offset);
+ glBindImageTexture(BINDING_OUTPUT_IMAGE, image.StorageHandle(), swizzle.level, GL_TRUE, 0,
+ GL_WRITE_ONLY, GL_RGBA8);
glDispatchCompute(num_dispatches_x, num_dispatches_y, image.info.resources.layers);
}
diff --git a/src/video_core/renderer_opengl/util_shaders.h b/src/video_core/renderer_opengl/util_shaders.h
index 53d65f368..ef881e35f 100644
--- a/src/video_core/renderer_opengl/util_shaders.h
+++ b/src/video_core/renderer_opengl/util_shaders.h
@@ -62,7 +62,6 @@ private:
ProgramManager& program_manager;
OGLBuffer swizzle_table_buffer;
- OGLBuffer astc_buffer;
OGLProgram astc_decoder_program;
OGLProgram block_linear_unswizzle_2d_program;
diff --git a/src/video_core/renderer_vulkan/vk_compute_pass.cpp b/src/video_core/renderer_vulkan/vk_compute_pass.cpp
index 561cf5e11..3e96c0f60 100644
--- a/src/video_core/renderer_vulkan/vk_compute_pass.cpp
+++ b/src/video_core/renderer_vulkan/vk_compute_pass.cpp
@@ -30,16 +30,12 @@
namespace Vulkan {
using Tegra::Texture::SWIZZLE_TABLE;
-using Tegra::Texture::ASTC::ASTC_ENCODINGS_VALUES;
-using namespace Tegra::Texture::ASTC;
namespace {
constexpr u32 ASTC_BINDING_INPUT_BUFFER = 0;
-constexpr u32 ASTC_BINDING_ENC_BUFFER = 1;
-constexpr u32 ASTC_BINDING_SWIZZLE_BUFFER = 2;
-constexpr u32 ASTC_BINDING_OUTPUT_IMAGE = 3;
-constexpr size_t ASTC_NUM_BINDINGS = 4;
+constexpr u32 ASTC_BINDING_OUTPUT_IMAGE = 1;
+constexpr size_t ASTC_NUM_BINDINGS = 2;
template <size_t size>
inline constexpr VkPushConstantRange COMPUTE_PUSH_CONSTANT_RANGE{
@@ -75,7 +71,7 @@ constexpr DescriptorBankInfo INPUT_OUTPUT_BANK_INFO{
.score = 2,
};
-constexpr std::array<VkDescriptorSetLayoutBinding, 4> ASTC_DESCRIPTOR_SET_BINDINGS{{
+constexpr std::array<VkDescriptorSetLayoutBinding, ASTC_NUM_BINDINGS> ASTC_DESCRIPTOR_SET_BINDINGS{{
{
.binding = ASTC_BINDING_INPUT_BUFFER,
.descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
@@ -84,20 +80,6 @@ constexpr std::array<VkDescriptorSetLayoutBinding, 4> ASTC_DESCRIPTOR_SET_BINDIN
.pImmutableSamplers = nullptr,
},
{
- .binding = ASTC_BINDING_ENC_BUFFER,
- .descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
- .descriptorCount = 1,
- .stageFlags = VK_SHADER_STAGE_COMPUTE_BIT,
- .pImmutableSamplers = nullptr,
- },
- {
- .binding = ASTC_BINDING_SWIZZLE_BUFFER,
- .descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
- .descriptorCount = 1,
- .stageFlags = VK_SHADER_STAGE_COMPUTE_BIT,
- .pImmutableSamplers = nullptr,
- },
- {
.binding = ASTC_BINDING_OUTPUT_IMAGE,
.descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
.descriptorCount = 1,
@@ -108,12 +90,12 @@ constexpr std::array<VkDescriptorSetLayoutBinding, 4> ASTC_DESCRIPTOR_SET_BINDIN
constexpr DescriptorBankInfo ASTC_BANK_INFO{
.uniform_buffers = 0,
- .storage_buffers = 3,
+ .storage_buffers = 1,
.texture_buffers = 0,
.image_buffers = 0,
.textures = 0,
.images = 1,
- .score = 4,
+ .score = 2,
};
constexpr VkDescriptorUpdateTemplateEntryKHR INPUT_OUTPUT_DESCRIPTOR_UPDATE_TEMPLATE{
@@ -136,22 +118,6 @@ constexpr std::array<VkDescriptorUpdateTemplateEntryKHR, ASTC_NUM_BINDINGS>
.stride = sizeof(DescriptorUpdateEntry),
},
{
- .dstBinding = ASTC_BINDING_ENC_BUFFER,
- .dstArrayElement = 0,
- .descriptorCount = 1,
- .descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
- .offset = ASTC_BINDING_ENC_BUFFER * sizeof(DescriptorUpdateEntry),
- .stride = sizeof(DescriptorUpdateEntry),
- },
- {
- .dstBinding = ASTC_BINDING_SWIZZLE_BUFFER,
- .dstArrayElement = 0,
- .descriptorCount = 1,
- .descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
- .offset = ASTC_BINDING_SWIZZLE_BUFFER * sizeof(DescriptorUpdateEntry),
- .stride = sizeof(DescriptorUpdateEntry),
- },
- {
.dstBinding = ASTC_BINDING_OUTPUT_IMAGE,
.dstArrayElement = 0,
.descriptorCount = 1,
@@ -163,7 +129,6 @@ constexpr std::array<VkDescriptorUpdateTemplateEntryKHR, ASTC_NUM_BINDINGS>
struct AstcPushConstants {
std::array<u32, 2> blocks_dims;
- u32 bytes_per_block_log2;
u32 layer_stride;
u32 block_size;
u32 x_shift;
@@ -354,46 +319,6 @@ ASTCDecoderPass::ASTCDecoderPass(const Device& device_, VKScheduler& scheduler_,
ASTCDecoderPass::~ASTCDecoderPass() = default;
-void ASTCDecoderPass::MakeDataBuffer() {
- constexpr size_t TOTAL_BUFFER_SIZE = sizeof(ASTC_ENCODINGS_VALUES) + sizeof(SWIZZLE_TABLE);
- data_buffer = device.GetLogical().CreateBuffer(VkBufferCreateInfo{
- .sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
- .pNext = nullptr,
- .flags = 0,
- .size = TOTAL_BUFFER_SIZE,
- .usage = VK_BUFFER_USAGE_STORAGE_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT,
- .sharingMode = VK_SHARING_MODE_EXCLUSIVE,
- .queueFamilyIndexCount = 0,
- .pQueueFamilyIndices = nullptr,
- });
- data_buffer_commit = memory_allocator.Commit(data_buffer, MemoryUsage::Upload);
-
- const auto staging_ref = staging_buffer_pool.Request(TOTAL_BUFFER_SIZE, MemoryUsage::Upload);
- std::memcpy(staging_ref.mapped_span.data(), &ASTC_ENCODINGS_VALUES,
- sizeof(ASTC_ENCODINGS_VALUES));
- // Tack on the swizzle table at the end of the buffer
- std::memcpy(staging_ref.mapped_span.data() + sizeof(ASTC_ENCODINGS_VALUES), &SWIZZLE_TABLE,
- sizeof(SWIZZLE_TABLE));
-
- scheduler.Record([src = staging_ref.buffer, offset = staging_ref.offset, dst = *data_buffer,
- TOTAL_BUFFER_SIZE](vk::CommandBuffer cmdbuf) {
- static constexpr VkMemoryBarrier write_barrier{
- .sType = VK_STRUCTURE_TYPE_MEMORY_BARRIER,
- .pNext = nullptr,
- .srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT,
- .dstAccessMask = VK_ACCESS_SHADER_READ_BIT,
- };
- const VkBufferCopy copy{
- .srcOffset = offset,
- .dstOffset = 0,
- .size = TOTAL_BUFFER_SIZE,
- };
- cmdbuf.CopyBuffer(src, dst, copy);
- cmdbuf.PipelineBarrier(VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT,
- 0, write_barrier);
- });
-}
-
void ASTCDecoderPass::Assemble(Image& image, const StagingBufferRef& map,
std::span<const VideoCommon::SwizzleParameters> swizzles) {
using namespace VideoCommon::Accelerated;
@@ -402,9 +327,6 @@ void ASTCDecoderPass::Assemble(Image& image, const StagingBufferRef& map,
VideoCore::Surface::DefaultBlockHeight(image.info.format),
};
scheduler.RequestOutsideRenderPassOperationContext();
- if (!data_buffer) {
- MakeDataBuffer();
- }
const VkPipeline vk_pipeline = *pipeline;
const VkImageAspectFlags aspect_mask = image.AspectMask();
const VkImage vk_image = image.Handle();
@@ -436,16 +358,13 @@ void ASTCDecoderPass::Assemble(Image& image, const StagingBufferRef& map,
});
for (const VideoCommon::SwizzleParameters& swizzle : swizzles) {
const size_t input_offset = swizzle.buffer_offset + map.offset;
- const u32 num_dispatches_x = Common::DivCeil(swizzle.num_tiles.width, 32U);
- const u32 num_dispatches_y = Common::DivCeil(swizzle.num_tiles.height, 32U);
+ const u32 num_dispatches_x = Common::DivCeil(swizzle.num_tiles.width, 8U);
+ const u32 num_dispatches_y = Common::DivCeil(swizzle.num_tiles.height, 8U);
const u32 num_dispatches_z = image.info.resources.layers;
update_descriptor_queue.Acquire();
update_descriptor_queue.AddBuffer(map.buffer, input_offset,
image.guest_size_bytes - swizzle.buffer_offset);
- update_descriptor_queue.AddBuffer(*data_buffer, 0, sizeof(ASTC_ENCODINGS_VALUES));
- update_descriptor_queue.AddBuffer(*data_buffer, sizeof(ASTC_ENCODINGS_VALUES),
- sizeof(SWIZZLE_TABLE));
update_descriptor_queue.AddImage(image.StorageImageView(swizzle.level));
const void* const descriptor_data{update_descriptor_queue.UpdateData()};
@@ -453,11 +372,11 @@ void ASTCDecoderPass::Assemble(Image& image, const StagingBufferRef& map,
const auto params = MakeBlockLinearSwizzle2DParams(swizzle, image.info);
ASSERT(params.origin == (std::array<u32, 3>{0, 0, 0}));
ASSERT(params.destination == (std::array<s32, 3>{0, 0, 0}));
+ ASSERT(params.bytes_per_block_log2 == 4);
scheduler.Record([this, num_dispatches_x, num_dispatches_y, num_dispatches_z, block_dims,
params, descriptor_data](vk::CommandBuffer cmdbuf) {
const AstcPushConstants uniforms{
.blocks_dims = block_dims,
- .bytes_per_block_log2 = params.bytes_per_block_log2,
.layer_stride = params.layer_stride,
.block_size = params.block_size,
.x_shift = params.x_shift,
diff --git a/src/video_core/renderer_vulkan/vk_compute_pass.h b/src/video_core/renderer_vulkan/vk_compute_pass.h
index 114aef2bd..c7b92cce0 100644
--- a/src/video_core/renderer_vulkan/vk_compute_pass.h
+++ b/src/video_core/renderer_vulkan/vk_compute_pass.h
@@ -96,15 +96,10 @@ public:
std::span<const VideoCommon::SwizzleParameters> swizzles);
private:
- void MakeDataBuffer();
-
VKScheduler& scheduler;
StagingBufferPool& staging_buffer_pool;
VKUpdateDescriptorQueue& update_descriptor_queue;
MemoryAllocator& memory_allocator;
-
- vk::Buffer data_buffer;
- MemoryCommit data_buffer_commit;
};
} // namespace Vulkan
diff --git a/src/video_core/textures/astc.cpp b/src/video_core/textures/astc.cpp
index 3ab500760..25161df1f 100644
--- a/src/video_core/textures/astc.cpp
+++ b/src/video_core/textures/astc.cpp
@@ -151,6 +151,76 @@ private:
const IntType& m_Bits;
};
+enum class IntegerEncoding { JustBits, Quint, Trit };
+
+struct IntegerEncodedValue {
+ constexpr IntegerEncodedValue() = default;
+
+ constexpr IntegerEncodedValue(IntegerEncoding encoding_, u32 num_bits_)
+ : encoding{encoding_}, num_bits{num_bits_} {}
+
+ constexpr bool MatchesEncoding(const IntegerEncodedValue& other) const {
+ return encoding == other.encoding && num_bits == other.num_bits;
+ }
+
+ // Returns the number of bits required to encode num_vals values.
+ u32 GetBitLength(u32 num_vals) const {
+ u32 total_bits = num_bits * num_vals;
+ if (encoding == IntegerEncoding::Trit) {
+ total_bits += (num_vals * 8 + 4) / 5;
+ } else if (encoding == IntegerEncoding::Quint) {
+ total_bits += (num_vals * 7 + 2) / 3;
+ }
+ return total_bits;
+ }
+
+ IntegerEncoding encoding{};
+ u32 num_bits = 0;
+ u32 bit_value = 0;
+ union {
+ u32 quint_value = 0;
+ u32 trit_value;
+ };
+};
+
+// Returns a new instance of this struct that corresponds to the
+// can take no more than mav_value values
+static constexpr IntegerEncodedValue CreateEncoding(u32 mav_value) {
+ while (mav_value > 0) {
+ u32 check = mav_value + 1;
+
+ // Is mav_value a power of two?
+ if (!(check & (check - 1))) {
+ return IntegerEncodedValue(IntegerEncoding::JustBits, std::popcount(mav_value));
+ }
+
+ // Is mav_value of the type 3*2^n - 1?
+ if ((check % 3 == 0) && !((check / 3) & ((check / 3) - 1))) {
+ return IntegerEncodedValue(IntegerEncoding::Trit, std::popcount(check / 3 - 1));
+ }
+
+ // Is mav_value of the type 5*2^n - 1?
+ if ((check % 5 == 0) && !((check / 5) & ((check / 5) - 1))) {
+ return IntegerEncodedValue(IntegerEncoding::Quint, std::popcount(check / 5 - 1));
+ }
+
+ // Apparently it can't be represented with a bounded integer sequence...
+ // just iterate.
+ mav_value--;
+ }
+ return IntegerEncodedValue(IntegerEncoding::JustBits, 0);
+}
+
+static constexpr std::array<IntegerEncodedValue, 256> MakeEncodedValues() {
+ std::array<IntegerEncodedValue, 256> encodings{};
+ for (std::size_t i = 0; i < encodings.size(); ++i) {
+ encodings[i] = CreateEncoding(static_cast<u32>(i));
+ }
+ return encodings;
+}
+
+static constexpr std::array<IntegerEncodedValue, 256> ASTC_ENCODINGS_VALUES = MakeEncodedValues();
+
namespace Tegra::Texture::ASTC {
using IntegerEncodedVector = boost::container::static_vector<
IntegerEncodedValue, 256,
@@ -521,35 +591,41 @@ static TexelWeightParams DecodeBlockInfo(InputBitStream& strm) {
return params;
}
-static void FillVoidExtentLDR(InputBitStream& strm, std::span<u32> outBuf, u32 blockWidth,
- u32 blockHeight) {
- // Don't actually care about the void extent, just read the bits...
- for (s32 i = 0; i < 4; ++i) {
- strm.ReadBits<13>();
+// Replicates low num_bits such that [(to_bit - 1):(to_bit - 1 - from_bit)]
+// is the same as [(num_bits - 1):0] and repeats all the way down.
+template <typename IntType>
+static constexpr IntType Replicate(IntType val, u32 num_bits, u32 to_bit) {
+ if (num_bits == 0 || to_bit == 0) {
+ return 0;
}
-
- // Decode the RGBA components and renormalize them to the range [0, 255]
- u16 r = static_cast<u16>(strm.ReadBits<16>());
- u16 g = static_cast<u16>(strm.ReadBits<16>());
- u16 b = static_cast<u16>(strm.ReadBits<16>());
- u16 a = static_cast<u16>(strm.ReadBits<16>());
-
- u32 rgba = (r >> 8) | (g & 0xFF00) | (static_cast<u32>(b) & 0xFF00) << 8 |
- (static_cast<u32>(a) & 0xFF00) << 16;
-
- for (u32 j = 0; j < blockHeight; j++) {
- for (u32 i = 0; i < blockWidth; i++) {
- outBuf[j * blockWidth + i] = rgba;
+ const IntType v = val & static_cast<IntType>((1 << num_bits) - 1);
+ IntType res = v;
+ u32 reslen = num_bits;
+ while (reslen < to_bit) {
+ u32 comp = 0;
+ if (num_bits > to_bit - reslen) {
+ u32 newshift = to_bit - reslen;
+ comp = num_bits - newshift;
+ num_bits = newshift;
}
+ res = static_cast<IntType>(res << num_bits);
+ res = static_cast<IntType>(res | (v >> comp));
+ reslen += num_bits;
}
+ return res;
}
-static void FillError(std::span<u32> outBuf, u32 blockWidth, u32 blockHeight) {
- for (u32 j = 0; j < blockHeight; j++) {
- for (u32 i = 0; i < blockWidth; i++) {
- outBuf[j * blockWidth + i] = 0xFFFF00FF;
- }
+static constexpr std::size_t NumReplicateEntries(u32 num_bits) {
+ return std::size_t(1) << num_bits;
+}
+
+template <typename IntType, u32 num_bits, u32 to_bit>
+static constexpr auto MakeReplicateTable() {
+ std::array<IntType, NumReplicateEntries(num_bits)> table{};
+ for (IntType value = 0; value < static_cast<IntType>(std::size(table)); ++value) {
+ table[value] = Replicate(value, num_bits, to_bit);
}
+ return table;
}
static constexpr auto REPLICATE_BYTE_TO_16_TABLE = MakeReplicateTable<u32, 8, 16>();
@@ -572,6 +648,9 @@ static constexpr auto REPLICATE_2_BIT_TO_8_TABLE = MakeReplicateTable<u32, 2, 8>
static constexpr auto REPLICATE_3_BIT_TO_8_TABLE = MakeReplicateTable<u32, 3, 8>();
static constexpr auto REPLICATE_4_BIT_TO_8_TABLE = MakeReplicateTable<u32, 4, 8>();
static constexpr auto REPLICATE_5_BIT_TO_8_TABLE = MakeReplicateTable<u32, 5, 8>();
+static constexpr auto REPLICATE_6_BIT_TO_8_TABLE = MakeReplicateTable<u32, 6, 8>();
+static constexpr auto REPLICATE_7_BIT_TO_8_TABLE = MakeReplicateTable<u32, 7, 8>();
+static constexpr auto REPLICATE_8_BIT_TO_8_TABLE = MakeReplicateTable<u32, 8, 8>();
/// Use a precompiled table with the most common usages, if it's not in the expected range, fallback
/// to the runtime implementation
static constexpr u32 FastReplicateTo8(u32 value, u32 num_bits) {
@@ -1316,6 +1395,37 @@ static void ComputeEndpoints(Pixel& ep1, Pixel& ep2, const u32*& colorValues,
#undef READ_INT_VALUES
}
+static void FillVoidExtentLDR(InputBitStream& strm, std::span<u32> outBuf, u32 blockWidth,
+ u32 blockHeight) {
+ // Don't actually care about the void extent, just read the bits...
+ for (s32 i = 0; i < 4; ++i) {
+ strm.ReadBits<13>();
+ }
+
+ // Decode the RGBA components and renormalize them to the range [0, 255]
+ u16 r = static_cast<u16>(strm.ReadBits<16>());
+ u16 g = static_cast<u16>(strm.ReadBits<16>());
+ u16 b = static_cast<u16>(strm.ReadBits<16>());
+ u16 a = static_cast<u16>(strm.ReadBits<16>());
+
+ u32 rgba = (r >> 8) | (g & 0xFF00) | (static_cast<u32>(b) & 0xFF00) << 8 |
+ (static_cast<u32>(a) & 0xFF00) << 16;
+
+ for (u32 j = 0; j < blockHeight; j++) {
+ for (u32 i = 0; i < blockWidth; i++) {
+ outBuf[j * blockWidth + i] = rgba;
+ }
+ }
+}
+
+static void FillError(std::span<u32> outBuf, u32 blockWidth, u32 blockHeight) {
+ for (u32 j = 0; j < blockHeight; j++) {
+ for (u32 i = 0; i < blockWidth; i++) {
+ outBuf[j * blockWidth + i] = 0xFFFF00FF;
+ }
+ }
+}
+
static void DecompressBlock(std::span<const u8, 16> inBuf, const u32 blockWidth,
const u32 blockHeight, std::span<u32, 12 * 12> outBuf) {
InputBitStream strm(inBuf);
diff --git a/src/video_core/textures/astc.h b/src/video_core/textures/astc.h
index 0229ae122..14d2beec0 100644
--- a/src/video_core/textures/astc.h
+++ b/src/video_core/textures/astc.h
@@ -9,117 +9,6 @@
namespace Tegra::Texture::ASTC {
-enum class IntegerEncoding { JustBits, Quint, Trit };
-
-struct IntegerEncodedValue {
- constexpr IntegerEncodedValue() = default;
-
- constexpr IntegerEncodedValue(IntegerEncoding encoding_, u32 num_bits_)
- : encoding{encoding_}, num_bits{num_bits_} {}
-
- constexpr bool MatchesEncoding(const IntegerEncodedValue& other) const {
- return encoding == other.encoding && num_bits == other.num_bits;
- }
-
- // Returns the number of bits required to encode num_vals values.
- u32 GetBitLength(u32 num_vals) const {
- u32 total_bits = num_bits * num_vals;
- if (encoding == IntegerEncoding::Trit) {
- total_bits += (num_vals * 8 + 4) / 5;
- } else if (encoding == IntegerEncoding::Quint) {
- total_bits += (num_vals * 7 + 2) / 3;
- }
- return total_bits;
- }
-
- IntegerEncoding encoding{};
- u32 num_bits = 0;
- u32 bit_value = 0;
- union {
- u32 quint_value = 0;
- u32 trit_value;
- };
-};
-
-// Returns a new instance of this struct that corresponds to the
-// can take no more than mav_value values
-constexpr IntegerEncodedValue CreateEncoding(u32 mav_value) {
- while (mav_value > 0) {
- u32 check = mav_value + 1;
-
- // Is mav_value a power of two?
- if (!(check & (check - 1))) {
- return IntegerEncodedValue(IntegerEncoding::JustBits, std::popcount(mav_value));
- }
-
- // Is mav_value of the type 3*2^n - 1?
- if ((check % 3 == 0) && !((check / 3) & ((check / 3) - 1))) {
- return IntegerEncodedValue(IntegerEncoding::Trit, std::popcount(check / 3 - 1));
- }
-
- // Is mav_value of the type 5*2^n - 1?
- if ((check % 5 == 0) && !((check / 5) & ((check / 5) - 1))) {
- return IntegerEncodedValue(IntegerEncoding::Quint, std::popcount(check / 5 - 1));
- }
-
- // Apparently it can't be represented with a bounded integer sequence...
- // just iterate.
- mav_value--;
- }
- return IntegerEncodedValue(IntegerEncoding::JustBits, 0);
-}
-
-constexpr std::array<IntegerEncodedValue, 256> MakeEncodedValues() {
- std::array<IntegerEncodedValue, 256> encodings{};
- for (std::size_t i = 0; i < encodings.size(); ++i) {
- encodings[i] = CreateEncoding(static_cast<u32>(i));
- }
- return encodings;
-}
-
-constexpr std::array<IntegerEncodedValue, 256> ASTC_ENCODINGS_VALUES = MakeEncodedValues();
-
-// Replicates low num_bits such that [(to_bit - 1):(to_bit - 1 - from_bit)]
-// is the same as [(num_bits - 1):0] and repeats all the way down.
-template <typename IntType>
-constexpr IntType Replicate(IntType val, u32 num_bits, u32 to_bit) {
- if (num_bits == 0 || to_bit == 0) {
- return 0;
- }
- const IntType v = val & static_cast<IntType>((1 << num_bits) - 1);
- IntType res = v;
- u32 reslen = num_bits;
- while (reslen < to_bit) {
- u32 comp = 0;
- if (num_bits > to_bit - reslen) {
- u32 newshift = to_bit - reslen;
- comp = num_bits - newshift;
- num_bits = newshift;
- }
- res = static_cast<IntType>(res << num_bits);
- res = static_cast<IntType>(res | (v >> comp));
- reslen += num_bits;
- }
- return res;
-}
-
-constexpr std::size_t NumReplicateEntries(u32 num_bits) {
- return std::size_t(1) << num_bits;
-}
-
-template <typename IntType, u32 num_bits, u32 to_bit>
-constexpr auto MakeReplicateTable() {
- std::array<IntType, NumReplicateEntries(num_bits)> table{};
- for (IntType value = 0; value < static_cast<IntType>(std::size(table)); ++value) {
- table[value] = Replicate(value, num_bits, to_bit);
- }
- return table;
-}
-
-constexpr auto REPLICATE_6_BIT_TO_8_TABLE = MakeReplicateTable<u32, 6, 8>();
-constexpr auto REPLICATE_7_BIT_TO_8_TABLE = MakeReplicateTable<u32, 7, 8>();
-constexpr auto REPLICATE_8_BIT_TO_8_TABLE = MakeReplicateTable<u32, 8, 8>();
-
void Decompress(std::span<const uint8_t> data, uint32_t width, uint32_t height, uint32_t depth,
uint32_t block_width, uint32_t block_height, std::span<uint8_t> output);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 22:59:44 +0100