2021-02-13 21:50:12 +01:00
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// Copyright 2021 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#version 450
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#ifdef VULKAN
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#define BEGIN_PUSH_CONSTANTS layout(push_constant) uniform PushConstants {
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#define END_PUSH_CONSTANTS };
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#define UNIFORM(n)
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#define BINDING_INPUT_BUFFER 0
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#define BINDING_ENC_BUFFER 1
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#define BINDING_6_TO_8_BUFFER 2
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#define BINDING_7_TO_8_BUFFER 3
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#define BINDING_8_TO_8_BUFFER 4
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#define BINDING_BYTE_TO_16_BUFFER 5
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#define BINDING_SWIZZLE_BUFFER 6
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#define BINDING_OUTPUT_IMAGE 7
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#else // ^^^ Vulkan ^^^ // vvv OpenGL vvv
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#define BEGIN_PUSH_CONSTANTS
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#define END_PUSH_CONSTANTS
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#define UNIFORM(n) layout(location = n) uniform
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#define BINDING_SWIZZLE_BUFFER 0
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#define BINDING_INPUT_BUFFER 1
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#define BINDING_ENC_BUFFER 2
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#define BINDING_6_TO_8_BUFFER 3
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#define BINDING_7_TO_8_BUFFER 4
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#define BINDING_8_TO_8_BUFFER 5
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#define BINDING_BYTE_TO_16_BUFFER 6
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#define BINDING_OUTPUT_IMAGE 0
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#endif
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layout(local_size_x = 32, local_size_y = 32, local_size_z = 1) in;
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BEGIN_PUSH_CONSTANTS
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UNIFORM(1) uvec2 block_dims;
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2021-03-25 21:53:51 +01:00
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UNIFORM(2) uint bytes_per_block_log2;
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UNIFORM(3) uint layer_stride;
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UNIFORM(4) uint block_size;
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UNIFORM(5) uint x_shift;
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UNIFORM(6) uint block_height;
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UNIFORM(7) uint block_height_mask;
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END_PUSH_CONSTANTS
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struct EncodingData {
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uint encoding;
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uint num_bits;
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uint bit_value;
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uint quint_trit_value;
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};
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struct TexelWeightParams {
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uvec2 size;
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uint max_weight;
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bool dual_plane;
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bool error_state;
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bool void_extent_ldr;
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bool void_extent_hdr;
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};
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// Swizzle data
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layout(binding = BINDING_SWIZZLE_BUFFER, std430) readonly buffer SwizzleTable {
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uint swizzle_table[];
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};
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layout(binding = BINDING_INPUT_BUFFER, std430) readonly buffer InputBufferU32 {
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uint astc_data[];
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};
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// ASTC Encodings data
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layout(binding = BINDING_ENC_BUFFER, std430) readonly buffer EncodingsValues {
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EncodingData encoding_values[];
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};
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// ASTC Precompiled tables
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layout(binding = BINDING_6_TO_8_BUFFER, std430) readonly buffer REPLICATE_6_BIT_TO_8 {
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uint REPLICATE_6_BIT_TO_8_TABLE[];
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};
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layout(binding = BINDING_7_TO_8_BUFFER, std430) readonly buffer REPLICATE_7_BIT_TO_8 {
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uint REPLICATE_7_BIT_TO_8_TABLE[];
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};
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layout(binding = BINDING_8_TO_8_BUFFER, std430) readonly buffer REPLICATE_8_BIT_TO_8 {
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uint REPLICATE_8_BIT_TO_8_TABLE[];
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};
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layout(binding = BINDING_BYTE_TO_16_BUFFER, std430) readonly buffer REPLICATE_BYTE_TO_16 {
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uint REPLICATE_BYTE_TO_16_TABLE[];
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};
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layout(binding = BINDING_OUTPUT_IMAGE, rgba8) uniform writeonly image2DArray dest_image;
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const uint GOB_SIZE_X = 64;
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const uint GOB_SIZE_Y = 8;
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const uint GOB_SIZE_Z = 1;
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const uint GOB_SIZE = GOB_SIZE_X * GOB_SIZE_Y * GOB_SIZE_Z;
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const uint GOB_SIZE_X_SHIFT = 6;
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const uint GOB_SIZE_Y_SHIFT = 3;
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const uint GOB_SIZE_Z_SHIFT = 0;
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const uint GOB_SIZE_SHIFT = GOB_SIZE_X_SHIFT + GOB_SIZE_Y_SHIFT + GOB_SIZE_Z_SHIFT;
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const uvec2 SWIZZLE_MASK = uvec2(GOB_SIZE_X - 1, GOB_SIZE_Y - 1);
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const int BLOCK_SIZE_IN_BYTES = 16;
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const int BLOCK_INFO_ERROR = 0;
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const int BLOCK_INFO_VOID_EXTENT_HDR = 1;
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const int BLOCK_INFO_VOID_EXTENT_LDR = 2;
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const int BLOCK_INFO_NORMAL = 3;
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const int JUST_BITS = 0;
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const int QUINT = 1;
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const int TRIT = 2;
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// The following constants are expanded variants of the Replicate()
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// function calls corresponding to the following arguments:
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// value: index into the generated table
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// num_bits: the after "REPLICATE" in the table name. i.e. 4 is num_bits in REPLICATE_4.
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// to_bit: the integer after "TO_"
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const uint REPLICATE_BIT_TO_7_TABLE[2] = uint[](0, 127);
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const uint REPLICATE_1_BIT_TO_9_TABLE[2] = uint[](0, 511);
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const uint REPLICATE_1_BIT_TO_8_TABLE[2] = uint[](0, 255);
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const uint REPLICATE_2_BIT_TO_8_TABLE[4] = uint[](0, 85, 170, 255);
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const uint REPLICATE_3_BIT_TO_8_TABLE[8] = uint[](0, 36, 73, 109, 146, 182, 219, 255);
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const uint REPLICATE_4_BIT_TO_8_TABLE[16] =
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uint[](0, 17, 34, 51, 68, 85, 102, 119, 136, 153, 170, 187, 204, 221, 238, 255);
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const uint REPLICATE_5_BIT_TO_8_TABLE[32] =
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uint[](0, 8, 16, 24, 33, 41, 49, 57, 66, 74, 82, 90, 99, 107, 115, 123, 132, 140, 148, 156, 165,
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173, 181, 189, 198, 206, 214, 222, 231, 239, 247, 255);
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const uint REPLICATE_1_BIT_TO_6_TABLE[2] = uint[](0, 63);
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const uint REPLICATE_2_BIT_TO_6_TABLE[4] = uint[](0, 21, 42, 63);
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const uint REPLICATE_3_BIT_TO_6_TABLE[8] = uint[](0, 9, 18, 27, 36, 45, 54, 63);
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const uint REPLICATE_4_BIT_TO_6_TABLE[16] =
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uint[](0, 4, 8, 12, 17, 21, 25, 29, 34, 38, 42, 46, 51, 55, 59, 63);
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const uint REPLICATE_5_BIT_TO_6_TABLE[32] =
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uint[](0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 33, 35, 37, 39, 41, 43, 45,
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47, 49, 51, 53, 55, 57, 59, 61, 63);
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// Input ASTC texture globals
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uint current_index = 0;
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int bitsread = 0;
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uint total_bitsread = 0;
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uint local_buff[16];
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// Color data globals
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uint color_endpoint_data[16];
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int color_bitsread = 0;
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uint total_color_bitsread = 0;
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int color_index = 0;
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// Four values, two endpoints, four maximum paritions
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uint color_values[32];
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int colvals_index = 0;
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// Weight data globals
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uint texel_weight_data[16];
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int texel_bitsread = 0;
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uint total_texel_bitsread = 0;
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int texel_index = 0;
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bool texel_flag = false;
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// Global "vectors" to be pushed into when decoding
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EncodingData result_vector[100];
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int result_index = 0;
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EncodingData texel_vector[100];
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int texel_vector_index = 0;
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uint unquantized_texel_weights[2][144];
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uint SwizzleOffset(uvec2 pos) {
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pos = pos & SWIZZLE_MASK;
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return swizzle_table[pos.y * 64 + pos.x];
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}
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uint ReadTexel(uint offset) {
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// extract the 8-bit value from the 32-bit packed data.
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return bitfieldExtract(astc_data[offset / 4], int((offset * 8) & 24), 8);
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}
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// Replicates low num_bits such that [(to_bit - 1):(to_bit - 1 - from_bit)]
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// is the same as [(num_bits - 1):0] and repeats all the way down.
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uint Replicate(uint val, uint num_bits, uint to_bit) {
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if (num_bits == 0 || to_bit == 0) {
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return 0;
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}
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const uint v = val & uint((1 << num_bits) - 1);
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uint res = v;
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uint reslen = num_bits;
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while (reslen < to_bit) {
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uint comp = 0;
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if (num_bits > to_bit - reslen) {
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uint newshift = to_bit - reslen;
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comp = num_bits - newshift;
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num_bits = newshift;
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}
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res = uint(res << num_bits);
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res = uint(res | (v >> comp));
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reslen += num_bits;
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}
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return res;
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}
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uvec4 ReplicateByteTo16(uvec4 value) {
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return uvec4(REPLICATE_BYTE_TO_16_TABLE[value.x], REPLICATE_BYTE_TO_16_TABLE[value.y],
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REPLICATE_BYTE_TO_16_TABLE[value.z], REPLICATE_BYTE_TO_16_TABLE[value.w]);
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}
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uint ReplicateBitTo7(uint value) {
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return REPLICATE_BIT_TO_7_TABLE[value];
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}
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uint ReplicateBitTo9(uint value) {
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return REPLICATE_1_BIT_TO_9_TABLE[value];
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}
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uint FastReplicateTo8(uint value, uint num_bits) {
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switch (num_bits) {
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case 1:
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return REPLICATE_1_BIT_TO_8_TABLE[value];
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case 2:
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return REPLICATE_2_BIT_TO_8_TABLE[value];
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case 3:
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return REPLICATE_3_BIT_TO_8_TABLE[value];
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case 4:
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return REPLICATE_4_BIT_TO_8_TABLE[value];
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case 5:
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return REPLICATE_5_BIT_TO_8_TABLE[value];
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case 6:
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return REPLICATE_6_BIT_TO_8_TABLE[value];
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case 7:
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return REPLICATE_7_BIT_TO_8_TABLE[value];
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case 8:
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return REPLICATE_8_BIT_TO_8_TABLE[value];
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}
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return Replicate(value, num_bits, 8);
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}
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uint FastReplicateTo6(uint value, uint num_bits) {
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switch (num_bits) {
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case 1:
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return REPLICATE_1_BIT_TO_6_TABLE[value];
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case 2:
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return REPLICATE_2_BIT_TO_6_TABLE[value];
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case 3:
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return REPLICATE_3_BIT_TO_6_TABLE[value];
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case 4:
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return REPLICATE_4_BIT_TO_6_TABLE[value];
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case 5:
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return REPLICATE_5_BIT_TO_6_TABLE[value];
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}
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return Replicate(value, num_bits, 6);
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}
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uint Div3Floor(uint v) {
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return (v * 0x5556) >> 16;
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}
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uint Div3Ceil(uint v) {
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return Div3Floor(v + 2);
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}
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uint Div5Floor(uint v) {
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return (v * 0x3334) >> 16;
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}
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uint Div5Ceil(uint v) {
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return Div5Floor(v + 4);
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}
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uint Hash52(uint p) {
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p ^= p >> 15;
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p -= p << 17;
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p += p << 7;
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p += p << 4;
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p ^= p >> 5;
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p += p << 16;
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p ^= p >> 7;
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p ^= p >> 3;
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p ^= p << 6;
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p ^= p >> 17;
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return p;
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}
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uint SelectPartition(uint seed, uint x, uint y, uint z, uint partition_count, bool small_block) {
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if (partition_count == 1) {
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return 0;
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}
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if (small_block) {
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x <<= 1;
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y <<= 1;
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z <<= 1;
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}
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seed += (partition_count - 1) * 1024;
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uint rnum = Hash52(uint(seed));
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uint seed1 = uint(rnum & 0xF);
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uint seed2 = uint((rnum >> 4) & 0xF);
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uint seed3 = uint((rnum >> 8) & 0xF);
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uint seed4 = uint((rnum >> 12) & 0xF);
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uint seed5 = uint((rnum >> 16) & 0xF);
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uint seed6 = uint((rnum >> 20) & 0xF);
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uint seed7 = uint((rnum >> 24) & 0xF);
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uint seed8 = uint((rnum >> 28) & 0xF);
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uint seed9 = uint((rnum >> 18) & 0xF);
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uint seed10 = uint((rnum >> 22) & 0xF);
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uint seed11 = uint((rnum >> 26) & 0xF);
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uint seed12 = uint(((rnum >> 30) | (rnum << 2)) & 0xF);
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seed1 = (seed1 * seed1);
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seed2 = (seed2 * seed2);
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seed3 = (seed3 * seed3);
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seed4 = (seed4 * seed4);
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seed5 = (seed5 * seed5);
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seed6 = (seed6 * seed6);
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seed7 = (seed7 * seed7);
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seed8 = (seed8 * seed8);
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seed9 = (seed9 * seed9);
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seed10 = (seed10 * seed10);
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|
|
|
seed11 = (seed11 * seed11);
|
|
|
|
seed12 = (seed12 * seed12);
|
|
|
|
|
|
|
|
int sh1, sh2, sh3;
|
|
|
|
if ((seed & 1) > 0) {
|
|
|
|
sh1 = (seed & 2) > 0 ? 4 : 5;
|
|
|
|
sh2 = (partition_count == 3) ? 6 : 5;
|
|
|
|
} else {
|
|
|
|
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);
|
|
|
|
|
|
|
|
a &= 0x3F;
|
|
|
|
b &= 0x3F;
|
|
|
|
c &= 0x3F;
|
|
|
|
d &= 0x3F;
|
|
|
|
|
2021-03-25 21:53:51 +01:00
|
|
|
if (partition_count < 4) {
|
2021-02-13 21:50:12 +01:00
|
|
|
d = 0;
|
2021-03-25 21:53:51 +01:00
|
|
|
}
|
|
|
|
if (partition_count < 3) {
|
2021-02-13 21:50:12 +01:00
|
|
|
c = 0;
|
2021-03-25 21:53:51 +01:00
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
|
2021-03-25 21:53:51 +01:00
|
|
|
if (a >= b && a >= c && a >= d) {
|
2021-02-13 21:50:12 +01:00
|
|
|
return 0;
|
2021-03-25 21:53:51 +01:00
|
|
|
} else if (b >= c && b >= d) {
|
2021-02-13 21:50:12 +01:00
|
|
|
return 1;
|
2021-03-25 21:53:51 +01:00
|
|
|
} else if (c >= d) {
|
2021-02-13 21:50:12 +01:00
|
|
|
return 2;
|
2021-03-25 21:53:51 +01:00
|
|
|
} else {
|
|
|
|
return 3;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
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() {
|
2021-01-20 01:54:28 +01:00
|
|
|
if (current_index >= local_buff.length()) {
|
|
|
|
return 0;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
uint bit = bitfieldExtract(local_buff[current_index], bitsread, 1);
|
2021-03-25 21:53:51 +01:00
|
|
|
++bitsread;
|
|
|
|
++total_bitsread;
|
2021-02-13 21:50:12 +01:00
|
|
|
if (bitsread == 8) {
|
2021-03-25 21:53:51 +01:00
|
|
|
++current_index;
|
2021-02-13 21:50:12 +01:00
|
|
|
bitsread = 0;
|
|
|
|
}
|
|
|
|
return bit;
|
|
|
|
}
|
|
|
|
|
|
|
|
uint StreamBits(uint num_bits) {
|
|
|
|
uint ret = 0;
|
|
|
|
for (uint i = 0; i < num_bits; i++) {
|
|
|
|
ret |= ((ReadBit() & 1) << i);
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
uint ReadColorBit() {
|
|
|
|
uint bit = 0;
|
|
|
|
if (texel_flag) {
|
|
|
|
bit = bitfieldExtract(texel_weight_data[texel_index], texel_bitsread, 1);
|
2021-03-25 21:53:51 +01:00
|
|
|
++texel_bitsread;
|
|
|
|
++total_texel_bitsread;
|
2021-02-13 21:50:12 +01:00
|
|
|
if (texel_bitsread == 8) {
|
2021-03-25 21:53:51 +01:00
|
|
|
++texel_index;
|
2021-02-13 21:50:12 +01:00
|
|
|
texel_bitsread = 0;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
bit = bitfieldExtract(color_endpoint_data[color_index], color_bitsread, 1);
|
2021-03-25 21:53:51 +01:00
|
|
|
++color_bitsread;
|
|
|
|
++total_color_bitsread;
|
2021-02-13 21:50:12 +01:00
|
|
|
if (color_bitsread == 8) {
|
2021-03-25 21:53:51 +01:00
|
|
|
++color_index;
|
2021-02-13 21:50:12 +01:00
|
|
|
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);
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
void ResultEmplaceBack(EncodingData val) {
|
|
|
|
if (texel_flag) {
|
|
|
|
texel_vector[texel_vector_index] = val;
|
2021-03-25 21:53:51 +01:00
|
|
|
++texel_vector_index;
|
2021-02-13 21:50:12 +01:00
|
|
|
} else {
|
|
|
|
result_vector[result_index] = val;
|
2021-03-25 21:53:51 +01:00
|
|
|
++result_index;
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Returns the number of bits required to encode n_vals values.
|
|
|
|
uint GetBitLength(uint n_vals, uint encoding_index) {
|
2021-03-25 21:53:51 +01:00
|
|
|
uint total_bits = encoding_values[encoding_index].num_bits * n_vals;
|
|
|
|
if (encoding_values[encoding_index].encoding == TRIT) {
|
|
|
|
total_bits += Div5Ceil(n_vals * 8);
|
|
|
|
} else if (encoding_values[encoding_index].encoding == QUINT) {
|
|
|
|
total_bits += Div3Ceil(n_vals * 7);
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
return total_bits;
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
uint GetNumWeightValues(uvec2 size, bool dual_plane) {
|
|
|
|
uint n_vals = size.x * size.y;
|
|
|
|
if (dual_plane) {
|
|
|
|
n_vals *= 2;
|
|
|
|
}
|
|
|
|
return n_vals;
|
|
|
|
}
|
|
|
|
|
|
|
|
uint GetPackedBitSize(uvec2 size, bool dual_plane, uint max_weight) {
|
|
|
|
uint n_vals = GetNumWeightValues(size, dual_plane);
|
|
|
|
return GetBitLength(n_vals, max_weight);
|
|
|
|
}
|
|
|
|
|
|
|
|
uint BitsBracket(uint bits, uint pos) {
|
|
|
|
return ((bits >> pos) & 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
uint BitsOp(uint bits, uint start, uint end) {
|
|
|
|
if (start == end) {
|
|
|
|
return BitsBracket(bits, start);
|
|
|
|
} else if (start > end) {
|
|
|
|
uint t = start;
|
|
|
|
start = end;
|
|
|
|
end = t;
|
|
|
|
}
|
|
|
|
|
|
|
|
uint mask = (1 << (end - start + 1)) - 1;
|
|
|
|
return ((bits >> start) & mask);
|
|
|
|
}
|
|
|
|
|
2021-03-25 21:53:51 +01:00
|
|
|
void DecodeQuintBlock(uint num_bits) {
|
2021-02-13 21:50:12 +01:00
|
|
|
uint m[3];
|
|
|
|
uint q[3];
|
|
|
|
uint Q;
|
|
|
|
m[0] = StreamColorBits(num_bits);
|
|
|
|
Q = StreamColorBits(3);
|
|
|
|
m[1] = StreamColorBits(num_bits);
|
|
|
|
Q |= StreamColorBits(2) << 3;
|
|
|
|
m[2] = StreamColorBits(num_bits);
|
|
|
|
Q |= StreamColorBits(2) << 5;
|
|
|
|
if (BitsOp(Q, 1, 2) == 3 && BitsOp(Q, 5, 6) == 0) {
|
|
|
|
q[0] = 4;
|
|
|
|
q[1] = 4;
|
|
|
|
q[2] = (BitsBracket(Q, 0) << 2) | ((BitsBracket(Q, 4) & ~BitsBracket(Q, 0)) << 1) |
|
|
|
|
(BitsBracket(Q, 3) & ~BitsBracket(Q, 0));
|
|
|
|
} else {
|
|
|
|
uint C = 0;
|
|
|
|
if (BitsOp(Q, 1, 2) == 3) {
|
|
|
|
q[2] = 4;
|
|
|
|
C = (BitsOp(Q, 3, 4) << 3) | ((~BitsOp(Q, 5, 6) & 3) << 1) | BitsBracket(Q, 0);
|
|
|
|
} else {
|
|
|
|
q[2] = BitsOp(Q, 5, 6);
|
|
|
|
C = BitsOp(Q, 0, 4);
|
|
|
|
}
|
|
|
|
if (BitsOp(C, 0, 2) == 5) {
|
|
|
|
q[1] = 4;
|
|
|
|
q[0] = BitsOp(C, 3, 4);
|
|
|
|
} else {
|
|
|
|
q[1] = BitsOp(C, 3, 4);
|
|
|
|
q[0] = BitsOp(C, 0, 2);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
for (uint i = 0; i < 3; i++) {
|
|
|
|
EncodingData val;
|
2021-03-25 21:53:51 +01:00
|
|
|
val.encoding = QUINT;
|
2021-02-13 21:50:12 +01:00
|
|
|
val.num_bits = num_bits;
|
|
|
|
val.bit_value = m[i];
|
|
|
|
val.quint_trit_value = q[i];
|
|
|
|
ResultEmplaceBack(val);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void DecodeTritBlock(uint num_bits) {
|
|
|
|
uint m[5];
|
|
|
|
uint t[5];
|
|
|
|
uint T;
|
|
|
|
m[0] = StreamColorBits(num_bits);
|
|
|
|
T = StreamColorBits(2);
|
|
|
|
m[1] = StreamColorBits(num_bits);
|
|
|
|
T |= StreamColorBits(2) << 2;
|
|
|
|
m[2] = StreamColorBits(num_bits);
|
|
|
|
T |= StreamColorBits(1) << 4;
|
|
|
|
m[3] = StreamColorBits(num_bits);
|
|
|
|
T |= StreamColorBits(2) << 5;
|
|
|
|
m[4] = StreamColorBits(num_bits);
|
|
|
|
T |= StreamColorBits(1) << 7;
|
|
|
|
uint C = 0;
|
|
|
|
if (BitsOp(T, 2, 4) == 7) {
|
|
|
|
C = (BitsOp(T, 5, 7) << 2) | BitsOp(T, 0, 1);
|
|
|
|
t[4] = 2;
|
|
|
|
t[3] = 2;
|
|
|
|
} else {
|
|
|
|
C = BitsOp(T, 0, 4);
|
|
|
|
if (BitsOp(T, 5, 6) == 3) {
|
|
|
|
t[4] = 2;
|
|
|
|
t[3] = BitsBracket(T, 7);
|
|
|
|
} else {
|
|
|
|
t[4] = BitsBracket(T, 7);
|
|
|
|
t[3] = BitsOp(T, 5, 6);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (BitsOp(C, 0, 1) == 3) {
|
|
|
|
t[2] = 2;
|
|
|
|
t[1] = BitsBracket(C, 4);
|
|
|
|
t[0] = (BitsBracket(C, 3) << 1) | (BitsBracket(C, 2) & ~BitsBracket(C, 3));
|
|
|
|
} else if (BitsOp(C, 2, 3) == 3) {
|
|
|
|
t[2] = 2;
|
|
|
|
t[1] = 2;
|
|
|
|
t[0] = BitsOp(C, 0, 1);
|
|
|
|
} else {
|
|
|
|
t[2] = BitsBracket(C, 4);
|
|
|
|
t[1] = BitsOp(C, 2, 3);
|
|
|
|
t[0] = (BitsBracket(C, 1) << 1) | (BitsBracket(C, 0) & ~BitsBracket(C, 1));
|
|
|
|
}
|
|
|
|
for (uint i = 0; i < 5; i++) {
|
|
|
|
EncodingData val;
|
2021-03-25 21:53:51 +01:00
|
|
|
val.encoding = TRIT;
|
2021-02-13 21:50:12 +01:00
|
|
|
val.num_bits = num_bits;
|
|
|
|
val.bit_value = m[i];
|
|
|
|
val.quint_trit_value = t[i];
|
|
|
|
ResultEmplaceBack(val);
|
|
|
|
}
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
|
2021-02-13 21:50:12 +01:00
|
|
|
void DecodeIntegerSequence(uint max_range, uint num_values) {
|
|
|
|
EncodingData val = encoding_values[max_range];
|
|
|
|
uint vals_decoded = 0;
|
|
|
|
while (vals_decoded < num_values) {
|
|
|
|
switch (val.encoding) {
|
2021-03-25 21:53:51 +01:00
|
|
|
case QUINT:
|
2021-02-13 21:50:12 +01:00
|
|
|
DecodeQuintBlock(val.num_bits);
|
|
|
|
vals_decoded += 3;
|
|
|
|
break;
|
2021-03-25 21:53:51 +01:00
|
|
|
case TRIT:
|
2021-02-13 21:50:12 +01:00
|
|
|
DecodeTritBlock(val.num_bits);
|
|
|
|
vals_decoded += 5;
|
|
|
|
break;
|
2021-03-25 21:53:51 +01:00
|
|
|
case JUST_BITS:
|
2021-02-13 21:50:12 +01:00
|
|
|
val.bit_value = StreamColorBits(val.num_bits);
|
|
|
|
ResultEmplaceBack(val);
|
|
|
|
vals_decoded++;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2021-03-25 21:53:51 +01:00
|
|
|
void DecodeColorValues(uvec4 modes, uint num_partitions, uint color_data_bits) {
|
2021-02-13 21:50:12 +01:00
|
|
|
uint num_values = 0;
|
|
|
|
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];
|
2021-03-25 21:53:51 +01:00
|
|
|
uint bit_length = GetBitLength(num_values, range);
|
|
|
|
if (bit_length <= color_data_bits) {
|
2021-02-13 21:50:12 +01:00
|
|
|
while (--range > 0) {
|
|
|
|
EncodingData newval = encoding_values[range];
|
|
|
|
if (newval.encoding != val.encoding && newval.num_bits != val.num_bits) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
++range;
|
2021-02-13 21:50:12 +01:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
DecodeIntegerSequence(range, num_values);
|
|
|
|
uint out_index = 0;
|
2021-03-25 21:53:51 +01:00
|
|
|
for (int itr = 0; itr < result_index; ++itr) {
|
2021-02-13 21:50:12 +01:00
|
|
|
if (out_index >= num_values) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
EncodingData val = result_vector[itr];
|
|
|
|
uint bitlen = val.num_bits;
|
|
|
|
uint bitval = val.bit_value;
|
|
|
|
uint A = 0, B = 0, C = 0, D = 0;
|
|
|
|
A = ReplicateBitTo9((bitval & 1));
|
|
|
|
switch (val.encoding) {
|
2021-03-25 21:53:51 +01:00
|
|
|
case JUST_BITS:
|
2021-02-13 21:50:12 +01:00
|
|
|
color_values[out_index++] = FastReplicateTo8(bitval, bitlen);
|
|
|
|
break;
|
2021-03-25 21:53:51 +01:00
|
|
|
case TRIT: {
|
2021-02-13 21:50:12 +01:00
|
|
|
D = val.quint_trit_value;
|
|
|
|
switch (bitlen) {
|
2021-03-25 21:53:51 +01:00
|
|
|
case 1:
|
2021-02-13 21:50:12 +01:00
|
|
|
C = 204;
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
2021-02-13 21:50:12 +01:00
|
|
|
case 2: {
|
|
|
|
C = 93;
|
|
|
|
uint b = (bitval >> 1) & 1;
|
|
|
|
B = (b << 8) | (b << 4) | (b << 2) | (b << 1);
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 3: {
|
|
|
|
C = 44;
|
|
|
|
uint cb = (bitval >> 1) & 3;
|
|
|
|
B = (cb << 7) | (cb << 2) | cb;
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 4: {
|
|
|
|
C = 22;
|
|
|
|
uint dcb = (bitval >> 1) & 7;
|
|
|
|
B = (dcb << 6) | dcb;
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 5: {
|
|
|
|
C = 11;
|
|
|
|
uint edcb = (bitval >> 1) & 0xF;
|
|
|
|
B = (edcb << 5) | (edcb >> 2);
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 6: {
|
|
|
|
C = 5;
|
|
|
|
uint fedcb = (bitval >> 1) & 0x1F;
|
|
|
|
B = (fedcb << 4) | (fedcb >> 4);
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case QUINT: {
|
2021-02-13 21:50:12 +01:00
|
|
|
D = val.quint_trit_value;
|
|
|
|
switch (bitlen) {
|
2021-03-25 21:53:51 +01:00
|
|
|
case 1:
|
2021-02-13 21:50:12 +01:00
|
|
|
C = 113;
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
2021-02-13 21:50:12 +01:00
|
|
|
case 2: {
|
|
|
|
C = 54;
|
|
|
|
uint b = (bitval >> 1) & 1;
|
|
|
|
B = (b << 8) | (b << 3) | (b << 2);
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 3: {
|
|
|
|
C = 26;
|
|
|
|
uint cb = (bitval >> 1) & 3;
|
|
|
|
B = (cb << 7) | (cb << 1) | (cb >> 1);
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 4: {
|
|
|
|
C = 13;
|
|
|
|
uint dcb = (bitval >> 1) & 7;
|
|
|
|
B = (dcb << 6) | (dcb >> 1);
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 5: {
|
|
|
|
C = 6;
|
|
|
|
uint edcb = (bitval >> 1) & 0xF;
|
|
|
|
B = (edcb << 5) | (edcb >> 3);
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
}
|
|
|
|
break;
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
}
|
|
|
|
if (val.encoding != JUST_BITS) {
|
2021-02-13 21:50:12 +01:00
|
|
|
uint T = (D * C) + B;
|
|
|
|
T ^= A;
|
|
|
|
T = (A & 0x80) | (T >> 2);
|
|
|
|
color_values[out_index++] = T;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
|
2021-02-13 21:50:12 +01:00
|
|
|
ivec2 BitTransferSigned(int a, int b) {
|
|
|
|
ivec2 transferred;
|
2021-03-25 21:53:51 +01:00
|
|
|
transferred.y = b >> 1;
|
|
|
|
transferred.y |= a & 0x80;
|
|
|
|
transferred.x = a >> 1;
|
|
|
|
transferred.x &= 0x3F;
|
|
|
|
if ((transferred.x & 0x20) > 0) {
|
|
|
|
transferred.x -= 0x40;
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
|
|
|
return transferred;
|
|
|
|
}
|
|
|
|
|
|
|
|
uvec4 ClampByte(ivec4 color) {
|
2021-03-25 21:53:51 +01:00
|
|
|
for (uint i = 0; i < 4; ++i) {
|
2021-02-13 21:50:12 +01:00
|
|
|
color[i] = (color[i] < 0) ? 0 : ((color[i] > 255) ? 255 : color[i]);
|
|
|
|
}
|
|
|
|
return uvec4(color);
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
|
2021-02-13 21:50:12 +01:00
|
|
|
ivec4 BlueContract(int a, int r, int g, int b) {
|
|
|
|
return ivec4(a, (r + b) >> 1, (g + b) >> 1, b);
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
|
|
|
|
void ComputeEndpoints(out uvec4 ep1, out uvec4 ep2, uint color_endpoint_mode) {
|
2021-02-13 21:50:12 +01:00
|
|
|
#define READ_UINT_VALUES(N) \
|
|
|
|
uint v[N]; \
|
|
|
|
for (uint i = 0; i < N; i++) { \
|
|
|
|
v[i] = color_values[colvals_index++]; \
|
|
|
|
}
|
|
|
|
|
|
|
|
#define READ_INT_VALUES(N) \
|
|
|
|
int v[N]; \
|
|
|
|
for (uint i = 0; i < N; i++) { \
|
|
|
|
v[i] = int(color_values[colvals_index++]); \
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (color_endpoint_mode) {
|
|
|
|
case 0: {
|
|
|
|
READ_UINT_VALUES(2)
|
|
|
|
ep1 = uvec4(0xFF, v[0], v[0], v[0]);
|
|
|
|
ep2 = uvec4(0xFF, v[1], v[1], v[1]);
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 1: {
|
|
|
|
READ_UINT_VALUES(2)
|
|
|
|
uint L0 = (v[0] >> 2) | (v[1] & 0xC0);
|
2021-06-16 02:16:16 +02:00
|
|
|
uint L1 = min(L0 + (v[1] & 0x3F), 0xFFU);
|
2021-02-13 21:50:12 +01:00
|
|
|
ep1 = uvec4(0xFF, L0, L0, L0);
|
|
|
|
ep2 = uvec4(0xFF, L1, L1, L1);
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 4: {
|
|
|
|
READ_UINT_VALUES(4)
|
|
|
|
ep1 = uvec4(v[2], v[0], v[0], v[0]);
|
|
|
|
ep2 = uvec4(v[3], v[1], v[1], v[1]);
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 5: {
|
|
|
|
READ_INT_VALUES(4)
|
|
|
|
ivec2 transferred = BitTransferSigned(v[1], v[0]);
|
2021-03-25 21:53:51 +01:00
|
|
|
v[1] = transferred.x;
|
|
|
|
v[0] = transferred.y;
|
2021-02-13 21:50:12 +01:00
|
|
|
transferred = BitTransferSigned(v[3], v[2]);
|
2021-03-25 21:53:51 +01:00
|
|
|
v[3] = transferred.x;
|
|
|
|
v[2] = transferred.y;
|
2021-02-13 21:50:12 +01:00
|
|
|
ep1 = ClampByte(ivec4(v[2], v[0], v[0], v[0]));
|
2021-03-25 21:53:51 +01:00
|
|
|
ep2 = ClampByte(ivec4(v[2] + v[3], v[0] + v[1], v[0] + v[1], v[0] + v[1]));
|
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 6: {
|
|
|
|
READ_UINT_VALUES(4)
|
2021-03-25 21:53:51 +01:00
|
|
|
ep1 = uvec4(0xFF, (v[0] * v[3]) >> 8, (v[1] * v[3]) >> 8, (v[2] * v[3]) >> 8);
|
2021-02-13 21:50:12 +01:00
|
|
|
ep2 = uvec4(0xFF, v[0], v[1], v[2]);
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 8: {
|
|
|
|
READ_UINT_VALUES(6)
|
2021-03-25 21:53:51 +01:00
|
|
|
if ((v[1] + v[3] + v[5]) >= (v[0] + v[2] + v[4])) {
|
2021-02-13 21:50:12 +01:00
|
|
|
ep1 = uvec4(0xFF, v[0], v[2], v[4]);
|
|
|
|
ep2 = uvec4(0xFF, v[1], v[3], v[5]);
|
|
|
|
} else {
|
|
|
|
ep1 = uvec4(BlueContract(0xFF, int(v[1]), int(v[3]), int(v[5])));
|
|
|
|
ep2 = uvec4(BlueContract(0xFF, int(v[0]), int(v[2]), int(v[4])));
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 9: {
|
|
|
|
READ_INT_VALUES(6)
|
|
|
|
ivec2 transferred = BitTransferSigned(v[1], v[0]);
|
2021-03-25 21:53:51 +01:00
|
|
|
v[1] = transferred.x;
|
|
|
|
v[0] = transferred.y;
|
2021-02-13 21:50:12 +01:00
|
|
|
transferred = BitTransferSigned(v[3], v[2]);
|
2021-03-25 21:53:51 +01:00
|
|
|
v[3] = transferred.x;
|
|
|
|
v[2] = transferred.y;
|
2021-02-13 21:50:12 +01:00
|
|
|
transferred = BitTransferSigned(v[5], v[4]);
|
2021-03-25 21:53:51 +01:00
|
|
|
v[5] = transferred.x;
|
|
|
|
v[4] = transferred.y;
|
|
|
|
if ((v[1] + v[3] + v[5]) >= 0) {
|
2021-02-13 21:50:12 +01:00
|
|
|
ep1 = ClampByte(ivec4(0xFF, v[0], v[2], v[4]));
|
|
|
|
ep2 = ClampByte(ivec4(0xFF, v[0] + v[1], v[2] + v[3], v[4] + v[5]));
|
|
|
|
} else {
|
|
|
|
ep1 = ClampByte(BlueContract(0xFF, v[0] + v[1], v[2] + v[3], v[4] + v[5]));
|
|
|
|
ep2 = ClampByte(BlueContract(0xFF, v[0], v[2], v[4]));
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 10: {
|
|
|
|
READ_UINT_VALUES(6)
|
2021-03-25 21:53:51 +01:00
|
|
|
ep1 = uvec4(v[4], (v[0] * v[3]) >> 8, (v[1] * v[3]) >> 8, (v[2] * v[3]) >> 8);
|
2021-02-13 21:50:12 +01:00
|
|
|
ep2 = uvec4(v[5], v[0], v[1], v[2]);
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 12: {
|
|
|
|
READ_UINT_VALUES(8)
|
2021-03-25 21:53:51 +01:00
|
|
|
if ((v[1] + v[3] + v[5]) >= (v[0] + v[2] + v[4])) {
|
2021-02-13 21:50:12 +01:00
|
|
|
ep1 = uvec4(v[6], v[0], v[2], v[4]);
|
|
|
|
ep2 = uvec4(v[7], v[1], v[3], v[5]);
|
|
|
|
} else {
|
|
|
|
ep1 = uvec4(BlueContract(int(v[7]), int(v[1]), int(v[3]), int(v[5])));
|
|
|
|
ep2 = uvec4(BlueContract(int(v[6]), int(v[0]), int(v[2]), int(v[4])));
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 13: {
|
|
|
|
READ_INT_VALUES(8)
|
|
|
|
ivec2 transferred = BitTransferSigned(v[1], v[0]);
|
2021-03-25 21:53:51 +01:00
|
|
|
v[1] = transferred.x;
|
|
|
|
v[0] = transferred.y;
|
2021-02-13 21:50:12 +01:00
|
|
|
transferred = BitTransferSigned(v[3], v[2]);
|
2021-03-25 21:53:51 +01:00
|
|
|
v[3] = transferred.x;
|
|
|
|
v[2] = transferred.y;
|
2021-02-13 21:50:12 +01:00
|
|
|
|
|
|
|
transferred = BitTransferSigned(v[5], v[4]);
|
2021-03-25 21:53:51 +01:00
|
|
|
v[5] = transferred.x;
|
|
|
|
v[4] = transferred.y;
|
2021-02-13 21:50:12 +01:00
|
|
|
|
|
|
|
transferred = BitTransferSigned(v[7], v[6]);
|
2021-03-25 21:53:51 +01:00
|
|
|
v[7] = transferred.x;
|
|
|
|
v[6] = transferred.y;
|
2021-02-13 21:50:12 +01:00
|
|
|
|
2021-03-25 21:53:51 +01:00
|
|
|
if ((v[1] + v[3] + v[5]) >= 0) {
|
2021-02-13 21:50:12 +01:00
|
|
|
ep1 = ClampByte(ivec4(v[6], v[0], v[2], v[4]));
|
|
|
|
ep2 = ClampByte(ivec4(v[7] + v[6], v[0] + v[1], v[2] + v[3], v[4] + v[5]));
|
|
|
|
} else {
|
|
|
|
ep1 = ClampByte(BlueContract(v[6] + v[7], v[0] + v[1], v[2] + v[3], v[4] + v[5]));
|
|
|
|
ep2 = ClampByte(BlueContract(v[6], v[0], v[2], v[4]));
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
default: {
|
|
|
|
// HDR mode, or more likely a bug computing the color_endpoint_mode
|
|
|
|
ep1 = uvec4(0xFF, 0xFF, 0, 0);
|
|
|
|
ep2 = uvec4(0xFF, 0xFF, 0, 0);
|
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
|
|
|
#undef READ_UINT_VALUES
|
|
|
|
#undef READ_INT_VALUES
|
|
|
|
}
|
|
|
|
|
|
|
|
uint UnquantizeTexelWeight(EncodingData val) {
|
|
|
|
uint bitval = val.bit_value;
|
|
|
|
uint bitlen = val.num_bits;
|
|
|
|
uint A = ReplicateBitTo7((bitval & 1));
|
|
|
|
uint B = 0, C = 0, D = 0;
|
|
|
|
uint result = 0;
|
|
|
|
switch (val.encoding) {
|
2021-03-25 21:53:51 +01:00
|
|
|
case JUST_BITS:
|
2021-02-13 21:50:12 +01:00
|
|
|
result = FastReplicateTo6(bitval, bitlen);
|
|
|
|
break;
|
2021-03-25 21:53:51 +01:00
|
|
|
case TRIT: {
|
2021-02-13 21:50:12 +01:00
|
|
|
D = val.quint_trit_value;
|
|
|
|
switch (bitlen) {
|
|
|
|
case 0: {
|
|
|
|
uint results[3] = {0, 32, 63};
|
|
|
|
result = results[D];
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 1: {
|
|
|
|
C = 50;
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 2: {
|
|
|
|
C = 23;
|
|
|
|
uint b = (bitval >> 1) & 1;
|
|
|
|
B = (b << 6) | (b << 2) | b;
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 3: {
|
|
|
|
C = 11;
|
|
|
|
uint cb = (bitval >> 1) & 3;
|
|
|
|
B = (cb << 5) | cb;
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
case QUINT: {
|
2021-02-13 21:50:12 +01:00
|
|
|
D = val.quint_trit_value;
|
|
|
|
switch (bitlen) {
|
|
|
|
case 0: {
|
|
|
|
uint results[5] = {0, 16, 32, 47, 63};
|
|
|
|
result = results[D];
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 1: {
|
|
|
|
C = 28;
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
case 2: {
|
|
|
|
C = 13;
|
|
|
|
uint b = (bitval >> 1) & 1;
|
|
|
|
B = (b << 6) | (b << 1);
|
2021-03-25 21:53:51 +01:00
|
|
|
break;
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
}
|
|
|
|
break;
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
}
|
|
|
|
if (val.encoding != JUST_BITS && bitlen > 0) {
|
2021-02-13 21:50:12 +01:00
|
|
|
result = D * C + B;
|
|
|
|
result ^= A;
|
|
|
|
result = (A & 0x20) | (result >> 2);
|
|
|
|
}
|
|
|
|
if (result > 32) {
|
|
|
|
result += 1;
|
|
|
|
}
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2021-03-25 21:53:51 +01:00
|
|
|
void UnquantizeTexelWeights(bool dual_plane, uvec2 size) {
|
2021-02-13 21:50:12 +01:00
|
|
|
uint weight_idx = 0;
|
|
|
|
uint unquantized[2][144];
|
|
|
|
uint area = size.x * size.y;
|
|
|
|
for (uint itr = 0; itr < texel_vector_index; itr++) {
|
|
|
|
unquantized[0][weight_idx] = UnquantizeTexelWeight(texel_vector[itr]);
|
|
|
|
if (dual_plane) {
|
|
|
|
++itr;
|
|
|
|
unquantized[1][weight_idx] = UnquantizeTexelWeight(texel_vector[itr]);
|
|
|
|
if (itr == texel_vector_index) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (++weight_idx >= (area))
|
|
|
|
break;
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
|
|
|
|
const uint Ds = uint((block_dims.x * 0.5f + 1024) / (block_dims.x - 1));
|
|
|
|
const uint Dt = uint((block_dims.y * 0.5f + 1024) / (block_dims.y - 1));
|
|
|
|
const uint k_plane_scale = dual_plane ? 2 : 1;
|
|
|
|
for (uint plane = 0; plane < k_plane_scale; plane++) {
|
|
|
|
for (uint t = 0; t < block_dims.y; t++) {
|
2021-02-13 21:50:12 +01:00
|
|
|
for (uint s = 0; s < block_dims.x; s++) {
|
|
|
|
uint cs = Ds * s;
|
|
|
|
uint ct = Dt * t;
|
|
|
|
uint gs = (cs * (size.x - 1) + 32) >> 6;
|
|
|
|
uint gt = (ct * (size.y - 1) + 32) >> 6;
|
|
|
|
uint js = gs >> 4;
|
|
|
|
uint fs = gs & 0xF;
|
|
|
|
uint jt = gt >> 4;
|
|
|
|
uint ft = gt & 0x0F;
|
|
|
|
uint w11 = (fs * ft + 8) >> 4;
|
|
|
|
uint w10 = ft - w11;
|
|
|
|
uint w01 = fs - w11;
|
|
|
|
uint w00 = 16 - fs - ft + w11;
|
|
|
|
uvec4 w = uvec4(w00, w01, w10, w11);
|
|
|
|
uint v0 = jt * size.x + js;
|
|
|
|
|
|
|
|
uvec4 p = uvec4(0);
|
|
|
|
if (v0 < area) {
|
|
|
|
p.x = unquantized[plane][v0];
|
|
|
|
}
|
|
|
|
if ((v0 + 1) < (area)) {
|
|
|
|
p.y = unquantized[plane][v0 + 1];
|
|
|
|
}
|
|
|
|
if ((v0 + size.x) < (area)) {
|
|
|
|
p.z = unquantized[plane][(v0 + size.x)];
|
|
|
|
}
|
|
|
|
if ((v0 + size.x + 1) < (area)) {
|
|
|
|
p.w = unquantized[plane][(v0 + size.x + 1)];
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
unquantized_texel_weights[plane][t * block_dims.x + s] = (uint(dot(p, w)) + 8) >> 4;
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
}
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
int FindLayout(uint mode) {
|
|
|
|
if ((mode & 3) != 0) {
|
|
|
|
if ((mode & 8) != 0) {
|
|
|
|
if ((mode & 4) != 0) {
|
|
|
|
if ((mode & 0x100) != 0) {
|
|
|
|
return 4;
|
|
|
|
}
|
|
|
|
return 3;
|
|
|
|
}
|
|
|
|
return 2;
|
|
|
|
}
|
|
|
|
if ((mode & 4) != 0) {
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
if ((mode & 0x100) != 0) {
|
|
|
|
if ((mode & 0x80) != 0) {
|
|
|
|
if ((mode & 0x20) != 0) {
|
|
|
|
return 8;
|
|
|
|
}
|
|
|
|
return 7;
|
|
|
|
}
|
|
|
|
return 9;
|
|
|
|
}
|
|
|
|
if ((mode & 0x80) != 0) {
|
|
|
|
return 6;
|
|
|
|
}
|
|
|
|
return 5;
|
|
|
|
}
|
|
|
|
|
|
|
|
TexelWeightParams DecodeBlockInfo(uint block_index) {
|
2021-03-25 21:53:51 +01:00
|
|
|
TexelWeightParams params = TexelWeightParams(uvec2(0), 0, false, false, false, false);
|
2021-02-13 21:50:12 +01:00
|
|
|
uint mode = StreamBits(11);
|
|
|
|
if ((mode & 0x1ff) == 0x1fc) {
|
|
|
|
if ((mode & 0x200) != 0) {
|
2021-03-25 21:53:51 +01:00
|
|
|
params.void_extent_hdr = true;
|
2021-02-13 21:50:12 +01:00
|
|
|
} else {
|
2021-03-25 21:53:51 +01:00
|
|
|
params.void_extent_ldr = true;
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
|
|
|
if ((mode & 0x400) == 0 || StreamBits(1) == 0) {
|
2021-03-25 21:53:51 +01:00
|
|
|
params.error_state = true;
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
|
|
|
return params;
|
|
|
|
}
|
|
|
|
if ((mode & 0xf) == 0) {
|
2021-03-25 21:53:51 +01:00
|
|
|
params.error_state = true;
|
2021-02-13 21:50:12 +01:00
|
|
|
return params;
|
|
|
|
}
|
|
|
|
if ((mode & 3) == 0 && (mode & 0x1c0) == 0x1c0) {
|
2021-03-25 21:53:51 +01:00
|
|
|
params.error_state = true;
|
2021-02-13 21:50:12 +01:00
|
|
|
return params;
|
|
|
|
}
|
|
|
|
uint A, B;
|
|
|
|
uint mode_layout = FindLayout(mode);
|
|
|
|
switch (mode_layout) {
|
|
|
|
case 0:
|
|
|
|
A = (mode >> 5) & 0x3;
|
|
|
|
B = (mode >> 7) & 0x3;
|
|
|
|
params.size = uvec2(B + 4, A + 2);
|
|
|
|
break;
|
|
|
|
case 1:
|
|
|
|
A = (mode >> 5) & 0x3;
|
|
|
|
B = (mode >> 7) & 0x3;
|
|
|
|
params.size = uvec2(B + 8, A + 2);
|
|
|
|
break;
|
|
|
|
case 2:
|
|
|
|
A = (mode >> 5) & 0x3;
|
|
|
|
B = (mode >> 7) & 0x3;
|
|
|
|
params.size = uvec2(A + 2, B + 8);
|
|
|
|
break;
|
|
|
|
case 3:
|
|
|
|
A = (mode >> 5) & 0x3;
|
|
|
|
B = (mode >> 7) & 0x1;
|
|
|
|
params.size = uvec2(A + 2, B + 6);
|
|
|
|
break;
|
|
|
|
case 4:
|
|
|
|
A = (mode >> 5) & 0x3;
|
|
|
|
B = (mode >> 7) & 0x1;
|
|
|
|
params.size = uvec2(B + 2, A + 2);
|
|
|
|
break;
|
|
|
|
case 5:
|
|
|
|
A = (mode >> 5) & 0x3;
|
|
|
|
params.size = uvec2(12, A + 2);
|
|
|
|
break;
|
|
|
|
case 6:
|
|
|
|
A = (mode >> 5) & 0x3;
|
|
|
|
params.size = uvec2(A + 2, 12);
|
|
|
|
break;
|
|
|
|
case 7:
|
|
|
|
params.size = uvec2(6, 10);
|
|
|
|
break;
|
|
|
|
case 8:
|
|
|
|
params.size = uvec2(10, 6);
|
|
|
|
break;
|
|
|
|
case 9:
|
|
|
|
A = (mode >> 5) & 0x3;
|
|
|
|
B = (mode >> 9) & 0x3;
|
|
|
|
params.size = uvec2(A + 6, B + 6);
|
|
|
|
break;
|
|
|
|
default:
|
2021-03-25 21:53:51 +01:00
|
|
|
params.error_state = true;
|
2021-02-13 21:50:12 +01:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
params.dual_plane = (mode_layout != 9) && ((mode & 0x400) != 0);
|
|
|
|
uint weight_index = (mode & 0x10) != 0 ? 1 : 0;
|
|
|
|
if (mode_layout < 5) {
|
|
|
|
weight_index |= (mode & 0x3) << 1;
|
|
|
|
} else {
|
|
|
|
weight_index |= (mode & 0xc) >> 1;
|
|
|
|
}
|
|
|
|
weight_index -= 2;
|
|
|
|
if ((mode_layout != 9) && ((mode & 0x200) != 0)) {
|
|
|
|
const int max_weights[6] = int[6](9, 11, 15, 19, 23, 31);
|
|
|
|
params.max_weight = max_weights[weight_index];
|
|
|
|
} else {
|
|
|
|
const int max_weights[6] = int[6](1, 2, 3, 4, 5, 7);
|
|
|
|
params.max_weight = max_weights[weight_index];
|
|
|
|
}
|
|
|
|
return params;
|
|
|
|
}
|
|
|
|
|
|
|
|
void FillError(ivec3 coord) {
|
|
|
|
for (uint j = 0; j < block_dims.y; j++) {
|
|
|
|
for (uint i = 0; i < block_dims.x; i++) {
|
2021-02-13 22:08:50 +01:00
|
|
|
imageStore(dest_image, coord + ivec3(i, j, 0), vec4(1.0, 1.0, 0.0, 1.0));
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2021-03-25 21:53:51 +01:00
|
|
|
void FillVoidExtentLDR(ivec3 coord) {
|
|
|
|
StreamBits(52);
|
2021-02-13 21:50:12 +01:00
|
|
|
uint r_u = StreamBits(16);
|
|
|
|
uint g_u = StreamBits(16);
|
|
|
|
uint b_u = StreamBits(16);
|
|
|
|
uint a_u = StreamBits(16);
|
|
|
|
float a = float(a_u) / 65535.0f;
|
|
|
|
float r = float(r_u) / 65535.0f;
|
|
|
|
float g = float(g_u) / 65535.0f;
|
|
|
|
float b = float(b_u) / 65535.0f;
|
|
|
|
for (uint j = 0; j < block_dims.y; j++) {
|
|
|
|
for (uint i = 0; i < block_dims.x; i++) {
|
2021-02-13 22:08:50 +01:00
|
|
|
imageStore(dest_image, coord + ivec3(i, j, 0), vec4(r, g, b, a));
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void DecompressBlock(ivec3 coord, uint block_index) {
|
2021-03-25 21:53:51 +01:00
|
|
|
TexelWeightParams params = DecodeBlockInfo(block_index);
|
|
|
|
if (params.error_state) {
|
2021-02-13 21:50:12 +01:00
|
|
|
FillError(coord);
|
|
|
|
return;
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
if (params.void_extent_hdr) {
|
2021-02-13 21:50:12 +01:00
|
|
|
FillError(coord);
|
|
|
|
return;
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
if (params.void_extent_ldr) {
|
|
|
|
FillVoidExtentLDR(coord);
|
2021-02-13 21:50:12 +01:00
|
|
|
return;
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
if ((params.size.x > block_dims.x) || (params.size.y > block_dims.y)) {
|
2021-02-13 21:50:12 +01:00
|
|
|
FillError(coord);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
uint num_partitions = StreamBits(2) + 1;
|
|
|
|
if (num_partitions > 4 || (num_partitions == 4 && params.dual_plane)) {
|
|
|
|
FillError(coord);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
int plane_index = -1;
|
|
|
|
uint partition_index = 1;
|
|
|
|
uvec4 color_endpoint_mode = uvec4(0);
|
|
|
|
uint ced_pointer = 0;
|
|
|
|
uint base_cem = 0;
|
|
|
|
if (num_partitions == 1) {
|
2021-03-25 21:53:51 +01:00
|
|
|
color_endpoint_mode.x = StreamBits(4);
|
2021-02-13 21:50:12 +01:00
|
|
|
partition_index = 0;
|
|
|
|
} else {
|
|
|
|
partition_index = StreamBits(10);
|
|
|
|
base_cem = StreamBits(6);
|
|
|
|
}
|
|
|
|
uint base_mode = base_cem & 3;
|
|
|
|
uint weight_bits = GetPackedBitSize(params.size, params.dual_plane, params.max_weight);
|
|
|
|
uint remaining_bits = 128 - weight_bits - total_bitsread;
|
|
|
|
uint extra_cem_bits = 0;
|
|
|
|
if (base_mode > 0) {
|
|
|
|
switch (num_partitions) {
|
|
|
|
case 2:
|
|
|
|
extra_cem_bits += 2;
|
|
|
|
break;
|
|
|
|
case 3:
|
|
|
|
extra_cem_bits += 5;
|
|
|
|
break;
|
|
|
|
case 4:
|
|
|
|
extra_cem_bits += 8;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
remaining_bits -= extra_cem_bits;
|
|
|
|
uint plane_selector_bits = 0;
|
|
|
|
if (params.dual_plane) {
|
|
|
|
plane_selector_bits = 2;
|
|
|
|
}
|
|
|
|
remaining_bits -= plane_selector_bits;
|
2021-01-20 01:54:28 +01:00
|
|
|
if (remaining_bits > 128) {
|
|
|
|
// Bad data, more remaining bits than 4 bytes
|
|
|
|
// return early
|
|
|
|
return;
|
|
|
|
}
|
2021-02-13 21:50:12 +01:00
|
|
|
// Read color data...
|
|
|
|
uint color_data_bits = remaining_bits;
|
|
|
|
while (remaining_bits > 0) {
|
2021-01-20 01:54:28 +01:00
|
|
|
int nb = int(min(remaining_bits, 8U));
|
2021-02-13 21:50:12 +01:00
|
|
|
uint b = StreamBits(nb);
|
2021-01-20 01:54:28 +01:00
|
|
|
color_endpoint_data[ced_pointer] = uint(bitfieldExtract(b, 0, nb));
|
2021-03-25 21:53:51 +01:00
|
|
|
++ced_pointer;
|
2021-02-13 21:50:12 +01:00
|
|
|
remaining_bits -= nb;
|
|
|
|
}
|
|
|
|
plane_index = int(StreamBits(plane_selector_bits));
|
|
|
|
if (base_mode > 0) {
|
|
|
|
uint extra_cem = StreamBits(extra_cem_bits);
|
|
|
|
uint cem = (extra_cem << 6) | base_cem;
|
|
|
|
cem >>= 2;
|
2021-03-25 21:53:51 +01:00
|
|
|
uvec4 C = uvec4(0);
|
2021-02-13 21:50:12 +01:00
|
|
|
for (uint i = 0; i < num_partitions; i++) {
|
2021-03-25 21:53:51 +01:00
|
|
|
C[i] = (cem & 1);
|
2021-02-13 21:50:12 +01:00
|
|
|
cem >>= 1;
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
uvec4 M = uvec4(0);
|
2021-02-13 21:50:12 +01:00
|
|
|
for (uint i = 0; i < num_partitions; i++) {
|
|
|
|
M[i] = cem & 3;
|
|
|
|
cem >>= 2;
|
|
|
|
}
|
|
|
|
for (uint i = 0; i < num_partitions; i++) {
|
|
|
|
color_endpoint_mode[i] = base_mode;
|
2021-03-25 21:53:51 +01:00
|
|
|
if (C[i] == 0) {
|
|
|
|
--color_endpoint_mode[i];
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
|
|
|
color_endpoint_mode[i] <<= 2;
|
|
|
|
color_endpoint_mode[i] |= M[i];
|
|
|
|
}
|
|
|
|
} else if (num_partitions > 1) {
|
|
|
|
uint cem = base_cem >> 2;
|
|
|
|
for (uint i = 0; i < num_partitions; i++) {
|
|
|
|
color_endpoint_mode[i] = cem;
|
|
|
|
}
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
DecodeColorValues(color_endpoint_mode, num_partitions, color_data_bits);
|
2021-02-13 21:50:12 +01:00
|
|
|
|
|
|
|
uvec4 endpoints[4][2];
|
|
|
|
for (uint i = 0; i < num_partitions; i++) {
|
2021-03-25 21:53:51 +01:00
|
|
|
ComputeEndpoints(endpoints[i][0], endpoints[i][1], color_endpoint_mode[i]);
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
|
2021-02-13 21:50:12 +01:00
|
|
|
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));
|
|
|
|
}
|
|
|
|
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(
|
|
|
|
((1 << (GetPackedBitSize(params.size, params.dual_plane, params.max_weight) % 8)) - 1));
|
|
|
|
for (uint i = 0; i < 16 - clear_byte_start; i++) {
|
2021-03-25 21:53:51 +01:00
|
|
|
texel_weight_data[clear_byte_start + i] = 0U;
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
|
|
|
texel_flag = true; // use texel "vector" and bit stream in integer decoding
|
|
|
|
DecodeIntegerSequence(params.max_weight, GetNumWeightValues(params.size, params.dual_plane));
|
2021-03-25 21:53:51 +01:00
|
|
|
|
|
|
|
UnquantizeTexelWeights(params.dual_plane, params.size);
|
|
|
|
|
2021-02-13 21:50:12 +01:00
|
|
|
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,
|
|
|
|
(block_dims.y * block_dims.x) < 32);
|
|
|
|
vec4 p;
|
|
|
|
uvec4 C0 = ReplicateByteTo16(endpoints[local_partition][0]);
|
|
|
|
uvec4 C1 = ReplicateByteTo16(endpoints[local_partition][1]);
|
|
|
|
uvec4 plane_vec = uvec4(0);
|
|
|
|
uvec4 weight_vec = uvec4(0);
|
|
|
|
for (uint c = 0; c < 4; c++) {
|
|
|
|
if (params.dual_plane && (((plane_index + 1) & 3) == c)) {
|
|
|
|
plane_vec[c] = 1;
|
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
weight_vec[c] = unquantized_texel_weights[plane_vec[c]][j * block_dims.x + i];
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
2021-03-25 21:53:51 +01:00
|
|
|
vec4 Cf = vec4((C0 * (uvec4(64) - weight_vec) + C1 * weight_vec + uvec4(32)) / 64);
|
2021-02-13 21:50:12 +01:00
|
|
|
p = (Cf / 65535.0);
|
2021-02-13 22:08:50 +01:00
|
|
|
imageStore(dest_image, coord + ivec3(i, j, 0), p.gbar);
|
2021-02-13 21:50:12 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void main() {
|
2021-03-25 21:53:51 +01:00
|
|
|
uvec3 pos = gl_GlobalInvocationID;
|
2021-02-13 21:50:12 +01:00
|
|
|
pos.x <<= bytes_per_block_log2;
|
|
|
|
|
|
|
|
// Read as soon as possible due to its latency
|
|
|
|
const uint swizzle = SwizzleOffset(pos.xy);
|
|
|
|
|
|
|
|
const uint block_y = pos.y >> GOB_SIZE_Y_SHIFT;
|
|
|
|
|
|
|
|
uint offset = 0;
|
2021-02-13 22:08:50 +01:00
|
|
|
offset += pos.z * layer_stride;
|
2021-02-13 21:50:12 +01:00
|
|
|
offset += (block_y >> block_height) * block_size;
|
|
|
|
offset += (block_y & block_height_mask) << GOB_SIZE_SHIFT;
|
|
|
|
offset += (pos.x >> GOB_SIZE_X_SHIFT) << x_shift;
|
|
|
|
offset += swizzle;
|
|
|
|
|
2021-03-25 21:53:51 +01:00
|
|
|
const ivec3 coord = ivec3(gl_GlobalInvocationID * uvec3(block_dims, 1));
|
2021-02-13 21:50:12 +01:00
|
|
|
uint block_index =
|
2021-03-25 21:53:51 +01:00
|
|
|
pos.z * gl_WorkGroupSize.x * gl_WorkGroupSize.y + pos.y * gl_WorkGroupSize.x + pos.x;
|
|
|
|
|
2021-02-13 21:50:12 +01:00
|
|
|
current_index = 0;
|
|
|
|
bitsread = 0;
|
|
|
|
for (int i = 0; i < 16; i++) {
|
|
|
|
local_buff[i] = ReadTexel(offset + i);
|
|
|
|
}
|
|
|
|
DecompressBlock(coord, block_index);
|
|
|
|
}
|