Alexander Suvorov
974fab40a5
This change improves the compression ratio. Explanation: In the original version of Crunch all the blocks are grouped into chunks of 2x2 blocks. Each chunk can have one of 8 different types. The type of the chunk determines which blocks inside the chunk share the same endpoints (for example, all the blocks inside the chunk share the same endpoints, or blocks in the right column share the same endpoints, or all the blocks have different endpoints, etc.). Encoding of endpoints equality is usually cheaper than encoding of duplicate endpoint indices. The used 8 chunk types do not cover all the possibilities, but they can be efficiently encoded using 0.75 bits per block (uncompressed). The modified algorithm no longer uses the concept of chunks in the output file format and is based on an alternative approach. Endpoints for each block can be either copied from the left nearest block (reference to the left), copied from the upper nearest block (reference to the top), or decoded from the stream (reference to itself). Note that this is a superset of the original encoding, so all the images previously encoded with the original algorithm can be losslessly transcoded into the new format, but not vice versa. Even though the new endpoint equality encoding is more expensive (about 1.58 bits per block, uncompressed), it provides more flexibility for endpoint matching inside the former "chunks", and more importantly, it allows to inherit endpoints from outside the former "chunks" (which is not possible when using the original chunk encoding). The blocks are no longer grouped together and are encoded in the same order as they appear on the image. Note: This modification alters the output file format and makes it incompatible with the previous revisions. Testing: The modified algorithm has been tested on the Kodak test set using 64-bit build with default settings (running on Windows 10, i7-4790, 3.6GHz). All the decompressed test images are identical to the images being compressed and decompressed using original version of Crunch. [Compressing Kodak set without mipmaps] Original: 1582222 bytes / 28.903 sec Modified: 1548791 bytes / 28.818 sec Improvement: 2.11% (compression ratio) / 0.29% (compression time) [Compressing Kodak set with mipmaps] Original: 2065243 bytes / 36.978 sec Modified: 2017245 bytes / 36.846 sec Improvement: 2.32% (compression ratio) / 0.36% (compression time)
1916 lines
65 KiB
C++
1916 lines
65 KiB
C++
// File: crn_comp.cpp
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// See Copyright Notice and license at the end of inc/crnlib.h
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#include "crn_core.h"
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#include "crn_console.h"
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#include "crn_comp.h"
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#include "crn_zeng.h"
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#include "crn_checksum.h"
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#define CRNLIB_CREATE_DEBUG_IMAGES 0
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#define CRNLIB_ENABLE_DEBUG_MESSAGES 0
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namespace crnlib {
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static const uint cEncodingMapNumChunksPerCode = 3;
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crn_comp::crn_comp()
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: m_pParams(NULL) {
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}
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crn_comp::~crn_comp() {
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}
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float crn_comp::color_endpoint_similarity_func(uint index_a, uint index_b, void* pContext) {
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dxt_hc& hvq = *static_cast<dxt_hc*>(pContext);
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uint endpoint_a = hvq.get_color_endpoint(index_a);
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uint endpoint_b = hvq.get_color_endpoint(index_b);
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color_quad_u8 a[2];
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a[0] = dxt1_block::unpack_color((uint16)(endpoint_a & 0xFFFF), true);
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a[1] = dxt1_block::unpack_color((uint16)((endpoint_a >> 16) & 0xFFFF), true);
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color_quad_u8 b[2];
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b[0] = dxt1_block::unpack_color((uint16)(endpoint_b & 0xFFFF), true);
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b[1] = dxt1_block::unpack_color((uint16)((endpoint_b >> 16) & 0xFFFF), true);
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uint total_error = color::elucidian_distance(a[0], b[0], false) + color::elucidian_distance(a[1], b[1], false);
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float weight = 1.0f - math::clamp(total_error * 1.0f / 8000.0f, 0.0f, 1.0f);
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return weight;
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}
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float crn_comp::alpha_endpoint_similarity_func(uint index_a, uint index_b, void* pContext) {
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dxt_hc& hvq = *static_cast<dxt_hc*>(pContext);
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uint endpoint_a = hvq.get_alpha_endpoint(index_a);
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int endpoint_a_lo = dxt5_block::unpack_endpoint(endpoint_a, 0);
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int endpoint_a_hi = dxt5_block::unpack_endpoint(endpoint_a, 1);
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uint endpoint_b = hvq.get_alpha_endpoint(index_b);
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int endpoint_b_lo = dxt5_block::unpack_endpoint(endpoint_b, 0);
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int endpoint_b_hi = dxt5_block::unpack_endpoint(endpoint_b, 1);
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int total_error = math::square(endpoint_a_lo - endpoint_b_lo) + math::square(endpoint_a_hi - endpoint_b_hi);
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float weight = 1.0f - math::clamp(total_error * 1.0f / 256.0f, 0.0f, 1.0f);
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return weight;
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}
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void crn_comp::sort_color_endpoint_codebook(crnlib::vector<uint>& remapping, const crnlib::vector<uint>& endpoints) {
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remapping.resize(endpoints.size());
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uint lowest_energy = UINT_MAX;
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uint lowest_energy_index = 0;
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for (uint i = 0; i < endpoints.size(); i++) {
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color_quad_u8 a(dxt1_block::unpack_color(static_cast<uint16>(endpoints[i] & 0xFFFF), true));
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color_quad_u8 b(dxt1_block::unpack_color(static_cast<uint16>((endpoints[i] >> 16) & 0xFFFF), true));
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uint total = a.r + a.g + a.b + b.r + b.g + b.b;
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if (total < lowest_energy) {
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lowest_energy = total;
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lowest_energy_index = i;
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}
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}
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uint cur_index = lowest_energy_index;
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crnlib::vector<bool> chosen_flags(endpoints.size());
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uint n = 0;
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for (;;) {
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chosen_flags[cur_index] = true;
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remapping[cur_index] = n;
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n++;
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if (n == endpoints.size())
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break;
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uint lowest_error = UINT_MAX;
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uint lowest_error_index = 0;
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color_quad_u8 a(dxt1_block::unpack_endpoint(endpoints[cur_index], 0, true));
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color_quad_u8 b(dxt1_block::unpack_endpoint(endpoints[cur_index], 1, true));
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for (uint i = 0; i < endpoints.size(); i++) {
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if (chosen_flags[i])
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continue;
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color_quad_u8 c(dxt1_block::unpack_endpoint(endpoints[i], 0, true));
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color_quad_u8 d(dxt1_block::unpack_endpoint(endpoints[i], 1, true));
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uint total = color::elucidian_distance(a, c, false) + color::elucidian_distance(b, d, false);
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if (total < lowest_error) {
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lowest_error = total;
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lowest_error_index = i;
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}
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}
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cur_index = lowest_error_index;
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}
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}
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void crn_comp::sort_alpha_endpoint_codebook(crnlib::vector<uint>& remapping, const crnlib::vector<uint>& endpoints) {
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remapping.resize(endpoints.size());
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uint lowest_energy = UINT_MAX;
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uint lowest_energy_index = 0;
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for (uint i = 0; i < endpoints.size(); i++) {
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uint a = dxt5_block::unpack_endpoint(endpoints[i], 0);
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uint b = dxt5_block::unpack_endpoint(endpoints[i], 1);
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uint total = a + b;
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if (total < lowest_energy) {
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lowest_energy = total;
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lowest_energy_index = i;
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}
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}
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uint cur_index = lowest_energy_index;
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crnlib::vector<bool> chosen_flags(endpoints.size());
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uint n = 0;
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for (;;) {
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chosen_flags[cur_index] = true;
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remapping[cur_index] = n;
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n++;
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if (n == endpoints.size())
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break;
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uint lowest_error = UINT_MAX;
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uint lowest_error_index = 0;
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const int a = dxt5_block::unpack_endpoint(endpoints[cur_index], 0);
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const int b = dxt5_block::unpack_endpoint(endpoints[cur_index], 1);
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for (uint i = 0; i < endpoints.size(); i++) {
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if (chosen_flags[i])
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continue;
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const int c = dxt5_block::unpack_endpoint(endpoints[i], 0);
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const int d = dxt5_block::unpack_endpoint(endpoints[i], 1);
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uint total = math::square(a - c) + math::square(b - d);
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if (total < lowest_error) {
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lowest_error = total;
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lowest_error_index = i;
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}
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}
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cur_index = lowest_error_index;
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}
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}
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// The indices are only used for statistical purposes.
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bool crn_comp::pack_color_endpoints(
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crnlib::vector<uint8>& data,
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const crnlib::vector<uint>& remapping,
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uint trial_index) {
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trial_index;
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#if CRNLIB_ENABLE_DEBUG_MESSAGES
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if (m_pParams->m_flags & cCRNCompFlagDebugging)
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console::debug("pack_color_endpoints: %u", trial_index);
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#endif
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crnlib::vector<uint> remapped_endpoints(m_hvq.get_color_endpoint_codebook_size());
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for (uint i = 0; i < m_hvq.get_color_endpoint_codebook_size(); i++)
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remapped_endpoints[remapping[i]] = m_hvq.get_color_endpoint(i);
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const uint component_limits[6] = {31, 63, 31, 31, 63, 31};
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symbol_histogram hist[2];
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hist[0].resize(32);
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hist[1].resize(64);
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#if CRNLIB_CREATE_DEBUG_IMAGES
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image_u8 endpoint_image(2, m_hvq.get_color_endpoint_codebook_size());
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image_u8 endpoint_residual_image(2, m_hvq.get_color_endpoint_codebook_size());
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#endif
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crnlib::vector<uint> residual_syms;
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residual_syms.reserve(m_hvq.get_color_endpoint_codebook_size() * 2 * 3);
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color_quad_u8 prev[2];
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prev[0].clear();
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prev[1].clear();
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int total_residuals = 0;
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for (uint endpoint_index = 0; endpoint_index < m_hvq.get_color_endpoint_codebook_size(); endpoint_index++) {
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const uint endpoint = remapped_endpoints[endpoint_index];
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color_quad_u8 cur[2];
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cur[0] = dxt1_block::unpack_color((uint16)(endpoint & 0xFFFF), false);
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cur[1] = dxt1_block::unpack_color((uint16)((endpoint >> 16) & 0xFFFF), false);
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#if CRNLIB_CREATE_DEBUG_IMAGES
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endpoint_image(0, endpoint_index) = dxt1_block::unpack_color((uint16)(endpoint & 0xFFFF), true);
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endpoint_image(1, endpoint_index) = dxt1_block::unpack_color((uint16)((endpoint >> 16) & 0xFFFF), true);
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#endif
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for (uint j = 0; j < 2; j++) {
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for (uint k = 0; k < 3; k++) {
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int delta = cur[j][k] - prev[j][k];
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total_residuals += delta * delta;
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int sym = delta & component_limits[j * 3 + k];
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int table = (k == 1) ? 1 : 0;
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hist[table].inc_freq(sym);
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residual_syms.push_back(sym);
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#if CRNLIB_CREATE_DEBUG_IMAGES
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endpoint_residual_image(j, endpoint_index)[k] = static_cast<uint8>(sym);
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#endif
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}
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}
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prev[0] = cur[0];
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prev[1] = cur[1];
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}
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#if CRNLIB_ENABLE_DEBUG_MESSAGES
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if (m_pParams->m_flags & cCRNCompFlagDebugging)
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console::debug("Total endpoint residuals: %i", total_residuals);
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#endif
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#if CRNLIB_CREATE_DEBUG_IMAGES
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image_utils::write_to_file(dynamic_string(cVarArg, "color_endpoint_residuals_%u.tga", trial_index).get_ptr(), endpoint_residual_image);
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image_utils::write_to_file(dynamic_string(cVarArg, "color_endpoints_%u.tga", trial_index).get_ptr(), endpoint_image);
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#endif
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static_huffman_data_model residual_dm[2];
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symbol_codec codec;
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codec.start_encoding(1024 * 1024);
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// Transmit residuals
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for (uint i = 0; i < 2; i++) {
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if (!residual_dm[i].init(true, hist[i], 15))
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return false;
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if (!codec.encode_transmit_static_huffman_data_model(residual_dm[i], false))
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return false;
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}
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#if CRNLIB_ENABLE_DEBUG_MESSAGES
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if (m_pParams->m_flags & cCRNCompFlagDebugging)
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console::debug("Wrote %u bits for color endpoint residual Huffman tables", codec.encode_get_total_bits_written());
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#endif
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uint start_bits = codec.encode_get_total_bits_written();
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start_bits;
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for (uint i = 0; i < residual_syms.size(); i++) {
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const uint sym = residual_syms[i];
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const uint table = ((i % 3) == 1) ? 1 : 0;
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codec.encode(sym, residual_dm[table]);
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}
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#if CRNLIB_ENABLE_DEBUG_MESSAGES
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if (m_pParams->m_flags & cCRNCompFlagDebugging)
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console::debug("Wrote %u bits for color endpoint residuals", codec.encode_get_total_bits_written() - start_bits);
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#endif
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codec.stop_encoding(false);
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data.swap(codec.get_encoding_buf());
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#if CRNLIB_ENABLE_DEBUG_MESSAGES
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if (m_pParams->m_flags & cCRNCompFlagDebugging) {
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console::debug("Wrote a total of %u bits for color endpoint codebook", codec.encode_get_total_bits_written());
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console::debug("Wrote %f bits per each color endpoint", data.size() * 8.0f / m_hvq.get_color_endpoint_codebook_size());
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}
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#endif
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return true;
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}
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// The indices are only used for statistical purposes.
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bool crn_comp::pack_alpha_endpoints(
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crnlib::vector<uint8>& data,
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const crnlib::vector<uint>& remapping,
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uint trial_index) {
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trial_index;
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#if CRNLIB_ENABLE_DEBUG_MESSAGES
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if (m_pParams->m_flags & cCRNCompFlagDebugging)
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console::debug("pack_alpha_endpoints: %u", trial_index);
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#endif
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crnlib::vector<uint> remapped_endpoints(m_hvq.get_alpha_endpoint_codebook_size());
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for (uint i = 0; i < m_hvq.get_alpha_endpoint_codebook_size(); i++)
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remapped_endpoints[remapping[i]] = m_hvq.get_alpha_endpoint(i);
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symbol_histogram hist;
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hist.resize(256);
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#if CRNLIB_CREATE_DEBUG_IMAGES
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image_u8 endpoint_image(2, m_hvq.get_alpha_endpoint_codebook_size());
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image_u8 endpoint_residual_image(2, m_hvq.get_alpha_endpoint_codebook_size());
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#endif
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crnlib::vector<uint> residual_syms;
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residual_syms.reserve(m_hvq.get_alpha_endpoint_codebook_size() * 2 * 3);
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uint prev[2];
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utils::zero_object(prev);
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int total_residuals = 0;
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for (uint endpoint_index = 0; endpoint_index < m_hvq.get_alpha_endpoint_codebook_size(); endpoint_index++) {
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const uint endpoint = remapped_endpoints[endpoint_index];
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uint cur[2];
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cur[0] = dxt5_block::unpack_endpoint(endpoint, 0);
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cur[1] = dxt5_block::unpack_endpoint(endpoint, 1);
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#if CRNLIB_CREATE_DEBUG_IMAGES
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endpoint_image(0, endpoint_index) = cur[0];
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endpoint_image(1, endpoint_index) = cur[1];
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#endif
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for (uint j = 0; j < 2; j++) {
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int delta = cur[j] - prev[j];
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total_residuals += delta * delta;
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int sym = delta & 255;
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hist.inc_freq(sym);
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residual_syms.push_back(sym);
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#if CRNLIB_CREATE_DEBUG_IMAGES
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endpoint_residual_image(j, endpoint_index) = static_cast<uint8>(sym);
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#endif
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}
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prev[0] = cur[0];
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prev[1] = cur[1];
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}
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#if CRNLIB_ENABLE_DEBUG_MESSAGES
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if (m_pParams->m_flags & cCRNCompFlagDebugging)
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console::debug("Total endpoint residuals: %i", total_residuals);
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#endif
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#if CRNLIB_CREATE_DEBUG_IMAGES
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image_utils::write_to_file(dynamic_string(cVarArg, "alpha_endpoint_residuals_%u.tga", trial_index).get_ptr(), endpoint_residual_image);
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image_utils::write_to_file(dynamic_string(cVarArg, "alpha_endpoints_%u.tga", trial_index).get_ptr(), endpoint_image);
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#endif
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static_huffman_data_model residual_dm;
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symbol_codec codec;
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codec.start_encoding(1024 * 1024);
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// Transmit residuals
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if (!residual_dm.init(true, hist, 15))
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return false;
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if (!codec.encode_transmit_static_huffman_data_model(residual_dm, false))
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return false;
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#if CRNLIB_ENABLE_DEBUG_MESSAGES
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if (m_pParams->m_flags & cCRNCompFlagDebugging)
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console::debug("Wrote %u bits for alpha endpoint residual Huffman tables", codec.encode_get_total_bits_written());
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#endif
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uint start_bits = codec.encode_get_total_bits_written();
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start_bits;
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for (uint i = 0; i < residual_syms.size(); i++) {
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const uint sym = residual_syms[i];
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codec.encode(sym, residual_dm);
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}
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#if CRNLIB_ENABLE_DEBUG_MESSAGES
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if (m_pParams->m_flags & cCRNCompFlagDebugging)
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console::debug("Wrote %u bits for alpha endpoint residuals", codec.encode_get_total_bits_written() - start_bits);
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#endif
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codec.stop_encoding(false);
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data.swap(codec.get_encoding_buf());
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#if CRNLIB_ENABLE_DEBUG_MESSAGES
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if (m_pParams->m_flags & cCRNCompFlagDebugging) {
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console::debug("Wrote a total of %u bits for alpha endpoint codebook", codec.encode_get_total_bits_written());
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console::debug("Wrote %f bits per each alpha endpoint", data.size() * 8.0f / m_hvq.get_alpha_endpoint_codebook_size());
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}
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#endif
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return true;
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}
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float crn_comp::color_selector_similarity_func(uint index_a, uint index_b, void* pContext) {
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const crnlib::vector<dxt_hc::selectors>& selectors = *static_cast<const crnlib::vector<dxt_hc::selectors>*>(pContext);
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const dxt_hc::selectors& selectors_a = selectors[index_a];
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const dxt_hc::selectors& selectors_b = selectors[index_b];
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int total = 0;
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for (uint i = 0; i < 16; i++) {
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int a = g_dxt1_to_linear[selectors_a.get_by_index(i)];
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int b = g_dxt1_to_linear[selectors_b.get_by_index(i)];
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int delta = a - b;
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total += delta * delta;
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}
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float weight = 1.0f - math::clamp(total * 1.0f / 20.0f, 0.0f, 1.0f);
|
|
return weight;
|
|
}
|
|
|
|
float crn_comp::alpha_selector_similarity_func(uint index_a, uint index_b, void* pContext) {
|
|
const crnlib::vector<dxt_hc::selectors>& selectors = *static_cast<const crnlib::vector<dxt_hc::selectors>*>(pContext);
|
|
|
|
const dxt_hc::selectors& selectors_a = selectors[index_a];
|
|
const dxt_hc::selectors& selectors_b = selectors[index_b];
|
|
|
|
int total = 0;
|
|
for (uint i = 0; i < 16; i++) {
|
|
int a = g_dxt5_to_linear[selectors_a.get_by_index(i)];
|
|
int b = g_dxt5_to_linear[selectors_b.get_by_index(i)];
|
|
|
|
int delta = a - b;
|
|
total += delta * delta;
|
|
}
|
|
|
|
float weight = 1.0f - math::clamp(total * 1.0f / 100.0f, 0.0f, 1.0f);
|
|
return weight;
|
|
}
|
|
|
|
void crn_comp::sort_selector_codebook(crnlib::vector<uint>& remapping, const crnlib::vector<dxt_hc::selectors>& selectors, const uint8* pTo_linear) {
|
|
remapping.resize(selectors.size());
|
|
|
|
uint lowest_energy = UINT_MAX;
|
|
uint lowest_energy_index = 0;
|
|
|
|
for (uint i = 0; i < selectors.size(); i++) {
|
|
uint total = 0;
|
|
for (uint j = 0; j < 16; j++) {
|
|
int a = pTo_linear[selectors[i].get_by_index(j)];
|
|
|
|
total += a * a;
|
|
}
|
|
|
|
if (total < lowest_energy) {
|
|
lowest_energy = total;
|
|
lowest_energy_index = i;
|
|
}
|
|
}
|
|
|
|
uint cur_index = lowest_energy_index;
|
|
|
|
crnlib::vector<bool> chosen_flags(selectors.size());
|
|
|
|
uint n = 0;
|
|
for (;;) {
|
|
chosen_flags[cur_index] = true;
|
|
|
|
remapping[cur_index] = n;
|
|
n++;
|
|
if (n == selectors.size())
|
|
break;
|
|
|
|
uint lowest_error = UINT_MAX;
|
|
uint lowest_error_index = 0;
|
|
|
|
for (uint i = 0; i < selectors.size(); i++) {
|
|
if (chosen_flags[i])
|
|
continue;
|
|
|
|
uint total = 0;
|
|
for (uint j = 0; j < 16; j++) {
|
|
int a = pTo_linear[selectors[cur_index].get_by_index(j)];
|
|
int b = pTo_linear[selectors[i].get_by_index(j)];
|
|
|
|
int delta = a - b;
|
|
total += delta * delta;
|
|
}
|
|
|
|
if (total < lowest_error) {
|
|
lowest_error = total;
|
|
lowest_error_index = i;
|
|
}
|
|
}
|
|
|
|
cur_index = lowest_error_index;
|
|
}
|
|
}
|
|
|
|
// The indices are only used for statistical purposes.
|
|
bool crn_comp::pack_selectors(
|
|
crnlib::vector<uint8>& packed_data,
|
|
const crnlib::vector<dxt_hc::selectors>& selectors,
|
|
const crnlib::vector<uint>& remapping,
|
|
uint max_selector_value,
|
|
const uint8* pTo_linear,
|
|
uint trial_index) {
|
|
trial_index;
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("pack_selectors: %u", trial_index);
|
|
#endif
|
|
|
|
crnlib::vector<dxt_hc::selectors> remapped_selectors(selectors.size());
|
|
|
|
for (uint i = 0; i < selectors.size(); i++)
|
|
remapped_selectors[remapping[i]] = selectors[i];
|
|
|
|
#if CRNLIB_CREATE_DEBUG_IMAGES
|
|
image_u8 residual_image(16, selectors.size());
|
|
;
|
|
image_u8 selector_image(16, selectors.size());
|
|
;
|
|
#endif
|
|
|
|
crnlib::vector<uint> residual_syms;
|
|
residual_syms.reserve(selectors.size() * 8);
|
|
|
|
const uint num_baised_selector_values = (max_selector_value * 2 + 1);
|
|
symbol_histogram hist(num_baised_selector_values * num_baised_selector_values);
|
|
|
|
dxt_hc::selectors prev_selectors;
|
|
utils::zero_object(prev_selectors);
|
|
int total_residuals = 0;
|
|
for (uint selector_index = 0; selector_index < selectors.size(); selector_index++) {
|
|
const dxt_hc::selectors& s = remapped_selectors[selector_index];
|
|
|
|
uint prev_sym = 0;
|
|
for (uint i = 0; i < 16; i++) {
|
|
int p = pTo_linear[crnlib_assert_range_incl<uint>(prev_selectors.get_by_index(i), max_selector_value)];
|
|
|
|
int r = pTo_linear[crnlib_assert_range_incl<uint>(s.get_by_index(i), max_selector_value)] - p;
|
|
|
|
total_residuals += r * r;
|
|
|
|
uint sym = r + max_selector_value;
|
|
|
|
CRNLIB_ASSERT(sym < num_baised_selector_values);
|
|
if (i & 1) {
|
|
uint paired_sym = (sym * num_baised_selector_values) + prev_sym;
|
|
residual_syms.push_back(paired_sym);
|
|
hist.inc_freq(paired_sym);
|
|
} else
|
|
prev_sym = sym;
|
|
|
|
#if CRNLIB_CREATE_DEBUG_IMAGES
|
|
selector_image(i, selector_index) = (pTo_linear[crnlib_assert_range_incl<uint>(s.get_by_index(i), max_selector_value)] * 255) / max_selector_value;
|
|
residual_image(i, selector_index) = sym;
|
|
#endif
|
|
}
|
|
|
|
prev_selectors = s;
|
|
}
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("Total selector endpoint residuals: %u", total_residuals);
|
|
#endif
|
|
|
|
#if CRNLIB_CREATE_DEBUG_IMAGES
|
|
image_utils::write_to_file(dynamic_string(cVarArg, "selectors_%u_%u.tga", trial_index, max_selector_value).get_ptr(), selector_image);
|
|
image_utils::write_to_file(dynamic_string(cVarArg, "selector_residuals_%u_%u.tga", trial_index, max_selector_value).get_ptr(), residual_image);
|
|
#endif
|
|
|
|
static_huffman_data_model residual_dm;
|
|
|
|
symbol_codec codec;
|
|
codec.start_encoding(1024 * 1024);
|
|
|
|
// Transmit residuals
|
|
if (!residual_dm.init(true, hist, 15))
|
|
return false;
|
|
|
|
if (!codec.encode_transmit_static_huffman_data_model(residual_dm, false))
|
|
return false;
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("Wrote %u bits for selector residual Huffman tables", codec.encode_get_total_bits_written());
|
|
#endif
|
|
|
|
uint start_bits = codec.encode_get_total_bits_written();
|
|
start_bits;
|
|
|
|
for (uint i = 0; i < residual_syms.size(); i++) {
|
|
const uint sym = residual_syms[i];
|
|
codec.encode(sym, residual_dm);
|
|
}
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("Wrote %u bits for selector residuals", codec.encode_get_total_bits_written() - start_bits);
|
|
#endif
|
|
|
|
codec.stop_encoding(false);
|
|
|
|
packed_data.swap(codec.get_encoding_buf());
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging) {
|
|
console::debug("Wrote a total of %u bits for selector codebook", codec.encode_get_total_bits_written());
|
|
|
|
console::debug("Wrote %f bits per each selector codebook entry", packed_data.size() * 8.0f / selectors.size());
|
|
}
|
|
#endif
|
|
|
|
return true;
|
|
}
|
|
|
|
bool crn_comp::pack_chunks(
|
|
uint group,
|
|
bool clear_histograms,
|
|
symbol_codec* pCodec,
|
|
const crnlib::vector<uint>* pColor_endpoint_remap,
|
|
const crnlib::vector<uint>* pColor_selector_remap,
|
|
const crnlib::vector<uint>* pAlpha_endpoint_remap,
|
|
const crnlib::vector<uint>* pAlpha_selector_remap) {
|
|
uint first_chunk = m_mip_groups[group].m_first_chunk;
|
|
uint num_chunks = m_mip_groups[group].m_num_chunks;
|
|
uint chunk_width = m_mip_groups[group].m_chunk_width;
|
|
|
|
if (!pCodec) {
|
|
m_chunk_encoding_hist.resize(256);
|
|
if (clear_histograms)
|
|
m_chunk_encoding_hist.set_all(0);
|
|
|
|
if (pColor_endpoint_remap) {
|
|
CRNLIB_ASSERT(pColor_endpoint_remap->size() == m_hvq.get_color_endpoint_codebook_size());
|
|
m_endpoint_index_hist[0].resize(pColor_endpoint_remap->size());
|
|
if (clear_histograms)
|
|
m_endpoint_index_hist[0].set_all(0);
|
|
}
|
|
|
|
if (pColor_selector_remap) {
|
|
CRNLIB_ASSERT(pColor_selector_remap->size() == m_hvq.get_color_selector_codebook_size());
|
|
m_selector_index_hist[0].resize(pColor_selector_remap->size());
|
|
if (clear_histograms)
|
|
m_selector_index_hist[0].set_all(0);
|
|
}
|
|
|
|
if (pAlpha_endpoint_remap) {
|
|
CRNLIB_ASSERT(pAlpha_endpoint_remap->size() == m_hvq.get_alpha_endpoint_codebook_size());
|
|
m_endpoint_index_hist[1].resize(pAlpha_endpoint_remap->size());
|
|
if (clear_histograms)
|
|
m_endpoint_index_hist[1].set_all(0);
|
|
}
|
|
|
|
if (pAlpha_selector_remap) {
|
|
CRNLIB_ASSERT(pAlpha_selector_remap->size() == m_hvq.get_alpha_selector_codebook_size());
|
|
m_selector_index_hist[1].resize(pAlpha_selector_remap->size());
|
|
if (clear_histograms)
|
|
m_selector_index_hist[1].set_all(0);
|
|
}
|
|
}
|
|
|
|
uint selector_index[cNumComps] = {};
|
|
uint endpoint_index[cNumComps] = {};
|
|
const crnlib::vector<uint>* endpoint_remap[cNumComps] = {};
|
|
const crnlib::vector<uint>* selector_remap[cNumComps] = {};
|
|
for (uint c = 0; c < cNumComps; c++) {
|
|
if (m_has_comp[c]) {
|
|
endpoint_remap[c] = c ? pAlpha_endpoint_remap : pColor_endpoint_remap;
|
|
selector_remap[c] = c ? pAlpha_selector_remap : pColor_selector_remap;
|
|
}
|
|
}
|
|
|
|
for (uint chunk_base = first_chunk; chunk_base < first_chunk + num_chunks; chunk_base += chunk_width) {
|
|
for (uint by = 0; by < 2; by++) {
|
|
for (uint cx = 0; cx < chunk_width; cx++) {
|
|
const chunk_detail& details = m_chunk_details[chunk_base + cx];
|
|
if (!by) {
|
|
if (pCodec)
|
|
pCodec->encode(details.m_reference_group, m_reference_encoding_dm);
|
|
else
|
|
m_chunk_encoding_hist.inc_freq(details.m_reference_group);
|
|
}
|
|
for (uint bx = 0; bx < 2; bx++) {
|
|
for (uint c = 0; c < cNumComps; c++) {
|
|
if (endpoint_remap[c]) {
|
|
uint index = (*endpoint_remap[c])[details.m_endpoint_indices[by][bx][c]];
|
|
if (!details.m_endpoint_references[by][bx]) {
|
|
int sym = index - endpoint_index[c];
|
|
if (sym < 0)
|
|
sym += endpoint_remap[c]->size();
|
|
if (!pCodec)
|
|
m_endpoint_index_hist[c ? 1 : 0].inc_freq(sym);
|
|
else
|
|
pCodec->encode(sym, m_endpoint_index_dm[c ? 1 : 0]);
|
|
}
|
|
endpoint_index[c] = index;
|
|
}
|
|
}
|
|
for (uint c = 0; c < cNumComps; c++) {
|
|
if (selector_remap[c]) {
|
|
uint index = (*selector_remap[c])[details.m_selector_indices[by][bx][c]];
|
|
int sym = index - selector_index[c];
|
|
if (sym < 0)
|
|
sym += selector_remap[c]->size();
|
|
if (!pCodec)
|
|
m_selector_index_hist[c ? 1 : 0].inc_freq(sym);
|
|
else
|
|
pCodec->encode(sym, m_selector_index_dm[c ? 1 : 0]);
|
|
selector_index[c] = index;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool crn_comp::pack_chunks_simulation(
|
|
uint first_chunk, uint num_chunks,
|
|
uint& total_bits,
|
|
const crnlib::vector<uint>* pColor_endpoint_remap,
|
|
const crnlib::vector<uint>* pColor_selector_remap,
|
|
const crnlib::vector<uint>* pAlpha_endpoint_remap,
|
|
const crnlib::vector<uint>* pAlpha_selector_remap) {
|
|
for (uint group = 0; group < m_mip_groups.size(); group++) {
|
|
if (!pack_chunks(group, !group, NULL, pColor_endpoint_remap, pColor_selector_remap, pAlpha_endpoint_remap, pAlpha_selector_remap))
|
|
return false;
|
|
}
|
|
|
|
symbol_codec codec;
|
|
codec.start_encoding(2 * 1024 * 1024);
|
|
codec.encode_enable_simulation(true);
|
|
|
|
m_reference_encoding_dm.init(true, m_chunk_encoding_hist, 16);
|
|
|
|
for (uint i = 0; i < 2; i++) {
|
|
if (m_endpoint_index_hist[i].size()) {
|
|
m_endpoint_index_dm[i].init(true, m_endpoint_index_hist[i], 16);
|
|
|
|
codec.encode_transmit_static_huffman_data_model(m_endpoint_index_dm[i], false);
|
|
}
|
|
|
|
if (m_selector_index_hist[i].size()) {
|
|
m_selector_index_dm[i].init(true, m_selector_index_hist[i], 16);
|
|
|
|
codec.encode_transmit_static_huffman_data_model(m_selector_index_dm[i], false);
|
|
}
|
|
}
|
|
|
|
for (uint group = 0; group < m_mip_groups.size(); group++) {
|
|
if (!pack_chunks(group, false, &codec, pColor_endpoint_remap, pColor_selector_remap, pAlpha_endpoint_remap, pAlpha_selector_remap))
|
|
return false;
|
|
}
|
|
|
|
codec.stop_encoding(false);
|
|
|
|
total_bits = codec.encode_get_total_bits_written();
|
|
|
|
return true;
|
|
}
|
|
|
|
void crn_comp::append_vec(crnlib::vector<uint8>& a, const void* p, uint size) {
|
|
if (size) {
|
|
uint ofs = a.size();
|
|
a.resize(ofs + size);
|
|
|
|
memcpy(&a[ofs], p, size);
|
|
}
|
|
}
|
|
|
|
void crn_comp::append_vec(crnlib::vector<uint8>& a, const crnlib::vector<uint8>& b) {
|
|
if (!b.empty()) {
|
|
uint ofs = a.size();
|
|
a.resize(ofs + b.size());
|
|
|
|
memcpy(&a[ofs], &b[0], b.size());
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
bool crn_comp::init_chunk_encoding_dm()
|
|
{
|
|
symbol_histogram hist(1 << (3 * cEncodingMapNumChunksPerCode));
|
|
|
|
for (uint chunk_index = 0; chunk_index < m_hvq.get_num_chunks(); chunk_index += cEncodingMapNumChunksPerCode)
|
|
{
|
|
uint index = 0;
|
|
for (uint i = 0; i < cEncodingMapNumChunksPerCode; i++)
|
|
{
|
|
if ((chunk_index + i) >= m_hvq.get_num_chunks())
|
|
break;
|
|
const dxt_hc::chunk_encoding& encoding = m_hvq.get_chunk_encoding(chunk_index + i);
|
|
|
|
index |= (encoding.m_encoding_index << (i * 3));
|
|
}
|
|
|
|
hist.inc_freq(index);
|
|
}
|
|
|
|
if (!m_chunk_encoding_dm.init(true, hist, 16))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
bool crn_comp::alias_images() {
|
|
for (uint face_index = 0; face_index < m_pParams->m_faces; face_index++) {
|
|
for (uint level_index = 0; level_index < m_pParams->m_levels; level_index++) {
|
|
const uint width = math::maximum(1U, m_pParams->m_width >> level_index);
|
|
const uint height = math::maximum(1U, m_pParams->m_height >> level_index);
|
|
|
|
if (!m_pParams->m_pImages[face_index][level_index])
|
|
return false;
|
|
|
|
m_images[face_index][level_index].alias((color_quad_u8*)m_pParams->m_pImages[face_index][level_index], width, height);
|
|
}
|
|
}
|
|
|
|
image_utils::conversion_type conv_type = image_utils::get_image_conversion_type_from_crn_format((crn_format)m_pParams->m_format);
|
|
if (conv_type != image_utils::cConversion_Invalid) {
|
|
for (uint face_index = 0; face_index < m_pParams->m_faces; face_index++) {
|
|
for (uint level_index = 0; level_index < m_pParams->m_levels; level_index++) {
|
|
image_u8 cooked_image(m_images[face_index][level_index]);
|
|
|
|
image_utils::convert_image(cooked_image, conv_type);
|
|
|
|
m_images[face_index][level_index].swap(cooked_image);
|
|
}
|
|
}
|
|
}
|
|
|
|
m_mip_groups.clear();
|
|
m_mip_groups.resize(m_pParams->m_levels);
|
|
|
|
utils::zero_object(m_levels);
|
|
|
|
uint mip_group = 0;
|
|
uint chunk_index = 0;
|
|
uint mip_group_chunk_index = 0;
|
|
(void)mip_group_chunk_index;
|
|
for (uint level_index = 0; level_index < m_pParams->m_levels; level_index++) {
|
|
const uint width = math::maximum(1U, m_pParams->m_width >> level_index);
|
|
const uint height = math::maximum(1U, m_pParams->m_height >> level_index);
|
|
const uint chunk_width = math::align_up_value(width, cChunkPixelWidth) / cChunkPixelWidth;
|
|
const uint chunk_height = math::align_up_value(height, cChunkPixelHeight) / cChunkPixelHeight;
|
|
const uint num_chunks = m_pParams->m_faces * chunk_width * chunk_height;
|
|
|
|
m_mip_groups[mip_group].m_first_chunk = chunk_index;
|
|
mip_group_chunk_index = 0;
|
|
|
|
m_mip_groups[mip_group].m_num_chunks += num_chunks;
|
|
m_mip_groups[mip_group].m_chunk_width = chunk_width;
|
|
|
|
m_levels[level_index].m_width = width;
|
|
m_levels[level_index].m_height = height;
|
|
m_levels[level_index].m_chunk_width = chunk_width;
|
|
m_levels[level_index].m_chunk_height = chunk_height;
|
|
m_levels[level_index].m_first_chunk = chunk_index;
|
|
m_levels[level_index].m_num_chunks = num_chunks;
|
|
m_levels[level_index].m_group_index = mip_group;
|
|
m_levels[level_index].m_group_first_chunk = 0;
|
|
|
|
chunk_index += num_chunks;
|
|
|
|
mip_group++;
|
|
}
|
|
|
|
m_total_chunks = chunk_index;
|
|
|
|
return true;
|
|
}
|
|
|
|
void crn_comp::append_chunks(const image_u8& img, uint num_chunks_x, uint num_chunks_y, dxt_hc::pixel_chunk_vec& chunks, float weight) {
|
|
for (uint y = 0; y < num_chunks_y; y++) {
|
|
for (uint legacy_index = chunks.size(), x = 0; x < num_chunks_x; x++) {
|
|
chunks.resize(chunks.size() + 1);
|
|
|
|
dxt_hc::pixel_chunk& chunk = chunks.back();
|
|
chunk.m_weight = weight;
|
|
chunk.m_legacy_index = legacy_index + (y & 1 ? num_chunks_x - 1 - x : x);
|
|
|
|
for (uint cy = 0; cy < cChunkPixelHeight; cy++) {
|
|
uint py = y * cChunkPixelHeight + cy;
|
|
py = math::minimum(py, img.get_height() - 1);
|
|
|
|
for (uint cx = 0; cx < cChunkPixelWidth; cx++) {
|
|
uint px = x * cChunkPixelWidth + cx;
|
|
px = math::minimum(px, img.get_width() - 1);
|
|
|
|
chunk(cx, cy) = img(px, py);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void crn_comp::create_chunks() {
|
|
m_chunks.reserve(m_total_chunks);
|
|
m_chunks.resize(0);
|
|
|
|
for (uint level = 0; level < m_pParams->m_levels; level++) {
|
|
for (uint face = 0; face < m_pParams->m_faces; face++) {
|
|
if (!face) {
|
|
CRNLIB_ASSERT(m_levels[level].m_first_chunk == m_chunks.size());
|
|
}
|
|
|
|
float mip_weight = math::minimum(12.0f, powf(1.3f, static_cast<float>(level)));
|
|
//float mip_weight = 1.0f;
|
|
|
|
append_chunks(m_images[face][level], m_levels[level].m_chunk_width, m_levels[level].m_chunk_height, m_chunks, mip_weight);
|
|
}
|
|
}
|
|
|
|
CRNLIB_ASSERT(m_chunks.size() == m_total_chunks);
|
|
}
|
|
|
|
void crn_comp::clear() {
|
|
m_pParams = NULL;
|
|
|
|
for (uint f = 0; f < cCRNMaxFaces; f++)
|
|
for (uint l = 0; l < cCRNMaxLevels; l++)
|
|
m_images[f][l].clear();
|
|
|
|
utils::zero_object(m_levels);
|
|
|
|
m_mip_groups.clear();
|
|
|
|
utils::zero_object(m_has_comp);
|
|
|
|
m_chunk_details.clear();
|
|
|
|
m_total_chunks = 0;
|
|
|
|
m_chunks.clear();
|
|
|
|
utils::zero_object(m_crn_header);
|
|
|
|
m_comp_data.clear();
|
|
|
|
m_hvq.clear();
|
|
|
|
m_chunk_encoding_hist.clear();
|
|
m_reference_encoding_dm.clear();
|
|
for (uint i = 0; i < 2; i++) {
|
|
m_endpoint_index_hist[i].clear();
|
|
m_endpoint_index_dm[i].clear();
|
|
m_selector_index_hist[i].clear();
|
|
m_selector_index_dm[i].clear();
|
|
}
|
|
|
|
for (uint i = 0; i < cCRNMaxLevels; i++)
|
|
m_packed_chunks[i].clear();
|
|
|
|
m_packed_data_models.clear();
|
|
|
|
m_packed_color_endpoints.clear();
|
|
m_packed_color_selectors.clear();
|
|
m_packed_alpha_endpoints.clear();
|
|
m_packed_alpha_selectors.clear();
|
|
}
|
|
|
|
bool crn_comp::quantize_chunks() {
|
|
dxt_hc::params params;
|
|
|
|
params.m_adaptive_tile_alpha_psnr_derating = m_pParams->m_crn_adaptive_tile_alpha_psnr_derating;
|
|
params.m_adaptive_tile_color_psnr_derating = m_pParams->m_crn_adaptive_tile_color_psnr_derating;
|
|
|
|
if (m_pParams->m_flags & cCRNCompFlagManualPaletteSizes) {
|
|
params.m_color_endpoint_codebook_size = math::clamp<int>(m_pParams->m_crn_color_endpoint_palette_size, cCRNMinPaletteSize, cCRNMaxPaletteSize);
|
|
params.m_color_selector_codebook_size = math::clamp<int>(m_pParams->m_crn_color_selector_palette_size, cCRNMinPaletteSize, cCRNMaxPaletteSize);
|
|
params.m_alpha_endpoint_codebook_size = math::clamp<int>(m_pParams->m_crn_alpha_endpoint_palette_size, cCRNMinPaletteSize, cCRNMaxPaletteSize);
|
|
params.m_alpha_selector_codebook_size = math::clamp<int>(m_pParams->m_crn_alpha_selector_palette_size, cCRNMinPaletteSize, cCRNMaxPaletteSize);
|
|
} else {
|
|
uint max_codebook_entries = ((m_pParams->m_width + 3) / 4) * ((m_pParams->m_height + 3) / 4);
|
|
|
|
max_codebook_entries = math::clamp<uint>(max_codebook_entries, cCRNMinPaletteSize, cCRNMaxPaletteSize);
|
|
|
|
float quality = math::clamp<float>((float)m_pParams->m_quality_level / cCRNMaxQualityLevel, 0.0f, 1.0f);
|
|
float color_quality_power_mul = 1.0f;
|
|
float alpha_quality_power_mul = 1.0f;
|
|
if (m_pParams->m_format == cCRNFmtDXT5_CCxY) {
|
|
color_quality_power_mul = 3.5f;
|
|
alpha_quality_power_mul = .35f;
|
|
params.m_adaptive_tile_color_psnr_derating = 5.0f;
|
|
} else if (m_pParams->m_format == cCRNFmtDXT5)
|
|
color_quality_power_mul = .75f;
|
|
|
|
float color_endpoint_quality = powf(quality, 1.8f * color_quality_power_mul);
|
|
float color_selector_quality = powf(quality, 1.65f * color_quality_power_mul);
|
|
params.m_color_endpoint_codebook_size = math::clamp<uint>(math::float_to_uint(.5f + math::lerp<float>(math::maximum<float>(64, cCRNMinPaletteSize), (float)max_codebook_entries, color_endpoint_quality)), cCRNMinPaletteSize, cCRNMaxPaletteSize);
|
|
params.m_color_selector_codebook_size = math::clamp<uint>(math::float_to_uint(.5f + math::lerp<float>(math::maximum<float>(96, cCRNMinPaletteSize), (float)max_codebook_entries, color_selector_quality)), cCRNMinPaletteSize, cCRNMaxPaletteSize);
|
|
|
|
float alpha_endpoint_quality = powf(quality, 2.1f * alpha_quality_power_mul);
|
|
float alpha_selector_quality = powf(quality, 1.65f * alpha_quality_power_mul);
|
|
params.m_alpha_endpoint_codebook_size = math::clamp<uint>(math::float_to_uint(.5f + math::lerp<float>(math::maximum<float>(24, cCRNMinPaletteSize), (float)max_codebook_entries, alpha_endpoint_quality)), cCRNMinPaletteSize, cCRNMaxPaletteSize);
|
|
;
|
|
params.m_alpha_selector_codebook_size = math::clamp<uint>(math::float_to_uint(.5f + math::lerp<float>(math::maximum<float>(48, cCRNMinPaletteSize), (float)max_codebook_entries, alpha_selector_quality)), cCRNMinPaletteSize, cCRNMaxPaletteSize);
|
|
;
|
|
}
|
|
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging) {
|
|
console::debug("Color endpoints: %u", params.m_color_endpoint_codebook_size);
|
|
console::debug("Color selectors: %u", params.m_color_selector_codebook_size);
|
|
console::debug("Alpha endpoints: %u", params.m_alpha_endpoint_codebook_size);
|
|
console::debug("Alpha selectors: %u", params.m_alpha_selector_codebook_size);
|
|
}
|
|
|
|
params.m_hierarchical = (m_pParams->m_flags & cCRNCompFlagHierarchical) != 0;
|
|
params.m_perceptual = (m_pParams->m_flags & cCRNCompFlagPerceptual) != 0;
|
|
|
|
params.m_pProgress_func = m_pParams->m_pProgress_func;
|
|
params.m_pProgress_func_data = m_pParams->m_pProgress_func_data;
|
|
|
|
switch (m_pParams->m_format) {
|
|
case cCRNFmtDXT1: {
|
|
params.m_format = cDXT1;
|
|
m_has_comp[cColor] = true;
|
|
break;
|
|
}
|
|
case cCRNFmtDXT3: {
|
|
m_has_comp[cAlpha0] = true;
|
|
return false;
|
|
}
|
|
case cCRNFmtDXT5: {
|
|
params.m_format = cDXT5;
|
|
params.m_alpha_component_indices[0] = m_pParams->m_alpha_component;
|
|
m_has_comp[cColor] = true;
|
|
m_has_comp[cAlpha0] = true;
|
|
break;
|
|
}
|
|
case cCRNFmtDXT5_CCxY: {
|
|
params.m_format = cDXT5;
|
|
params.m_alpha_component_indices[0] = 3;
|
|
m_has_comp[cColor] = true;
|
|
m_has_comp[cAlpha0] = true;
|
|
params.m_perceptual = false;
|
|
|
|
//params.m_adaptive_tile_color_alpha_weighting_ratio = 1.0f;
|
|
params.m_adaptive_tile_color_alpha_weighting_ratio = 1.5f;
|
|
break;
|
|
}
|
|
case cCRNFmtDXT5_xGBR:
|
|
case cCRNFmtDXT5_AGBR:
|
|
case cCRNFmtDXT5_xGxR: {
|
|
params.m_format = cDXT5;
|
|
params.m_alpha_component_indices[0] = 3;
|
|
m_has_comp[cColor] = true;
|
|
m_has_comp[cAlpha0] = true;
|
|
params.m_perceptual = false;
|
|
break;
|
|
}
|
|
case cCRNFmtDXN_XY: {
|
|
params.m_format = cDXN_XY;
|
|
params.m_alpha_component_indices[0] = 0;
|
|
params.m_alpha_component_indices[1] = 1;
|
|
m_has_comp[cAlpha0] = true;
|
|
m_has_comp[cAlpha1] = true;
|
|
params.m_perceptual = false;
|
|
break;
|
|
}
|
|
case cCRNFmtDXN_YX: {
|
|
params.m_format = cDXN_YX;
|
|
params.m_alpha_component_indices[0] = 1;
|
|
params.m_alpha_component_indices[1] = 0;
|
|
m_has_comp[cAlpha0] = true;
|
|
m_has_comp[cAlpha1] = true;
|
|
params.m_perceptual = false;
|
|
break;
|
|
}
|
|
case cCRNFmtDXT5A: {
|
|
params.m_format = cDXT5A;
|
|
params.m_alpha_component_indices[0] = m_pParams->m_alpha_component;
|
|
m_has_comp[cAlpha0] = true;
|
|
params.m_perceptual = false;
|
|
break;
|
|
}
|
|
case cCRNFmtETC1: {
|
|
console::warning("crn_comp::quantize_chunks: This class does not support ETC1");
|
|
return false;
|
|
}
|
|
default: {
|
|
return false;
|
|
}
|
|
}
|
|
params.m_debugging = (m_pParams->m_flags & cCRNCompFlagDebugging) != 0;
|
|
|
|
params.m_num_levels = m_pParams->m_levels;
|
|
for (uint i = 0; i < m_pParams->m_levels; i++) {
|
|
params.m_levels[i].m_first_chunk = m_levels[i].m_first_chunk;
|
|
params.m_levels[i].m_num_chunks = m_levels[i].m_num_chunks;
|
|
}
|
|
|
|
if (!m_hvq.compress(params, m_total_chunks, &m_chunks[0], m_task_pool))
|
|
return false;
|
|
|
|
#if CRNLIB_CREATE_DEBUG_IMAGES
|
|
if (params.m_debugging) {
|
|
const dxt_hc::pixel_chunk_vec& pixel_chunks = m_hvq.get_compressed_chunk_pixels_final();
|
|
|
|
image_u8 img;
|
|
dxt_hc::create_debug_image_from_chunks((m_pParams->m_width + 7) >> 3, (m_pParams->m_height + 7) >> 3, pixel_chunks, &m_hvq.get_chunk_encoding_vec(), img, true, -1);
|
|
image_utils::write_to_file("quantized_chunks.tga", img);
|
|
}
|
|
#endif
|
|
|
|
return true;
|
|
}
|
|
|
|
void crn_comp::create_chunk_indices() {
|
|
uint8 endpoint_index_map[8][4] = {
|
|
{ 0, 0, 0, 0 },
|
|
{ 0, 0, 1, 1 },
|
|
{ 0, 1, 0, 1 },
|
|
{ 0, 0, 1, 2 },
|
|
{ 1, 2, 0, 0 },
|
|
{ 0, 1, 0, 2 },
|
|
{ 1, 0, 2, 0 },
|
|
{ 0, 1, 2, 3 },
|
|
};
|
|
|
|
m_chunk_details.resize(m_total_chunks);
|
|
|
|
for (uint group = 0; group < m_mip_groups.size(); group++) {
|
|
uint chunk_width = m_mip_groups[group].m_chunk_width;
|
|
for (uint i = 0; i < m_mip_groups[group].m_num_chunks;) {
|
|
for (uint cx = 0; cx < chunk_width; cx++, i++) {
|
|
uint chunk_index = m_mip_groups[group].m_first_chunk + i, left_chunk_index = 0, top_chunk_index = 0;
|
|
const dxt_hc::chunk_encoding& chunk_encoding = m_hvq.get_chunk_encoding(chunk_index);
|
|
for (uint t = 0, by = 0; by < 2; by++) {
|
|
for (uint bx = 0; bx < 2; bx++, t++) {
|
|
bool left_match = bx || cx;
|
|
if (left_match)
|
|
left_chunk_index = bx ? chunk_index : chunk_index - 1;
|
|
bool top_match = by || i >= chunk_width;
|
|
if (top_match)
|
|
top_chunk_index = by ? chunk_index : chunk_index - chunk_width;
|
|
for (uint c = 0; c < cNumComps; c++) {
|
|
if (m_has_comp[c]) {
|
|
m_chunk_details[chunk_index].m_endpoint_indices[by][bx][c] = chunk_encoding.m_endpoint_indices[c][endpoint_index_map[chunk_encoding.m_encoding_index][t]];
|
|
left_match = left_match && m_chunk_details[chunk_index].m_endpoint_indices[by][bx][c] == m_chunk_details[left_chunk_index].m_endpoint_indices[by][bx ^ 1][c];
|
|
top_match = top_match && m_chunk_details[chunk_index].m_endpoint_indices[by][bx][c] == m_chunk_details[top_chunk_index].m_endpoint_indices[by ^ 1][bx][c];
|
|
m_chunk_details[chunk_index].m_selector_indices[by][bx][c] = chunk_encoding.m_selector_indices[c][by][bx];
|
|
}
|
|
}
|
|
uint8 endpoint_reference = left_match ? 1 : top_match ? 2 : 0;
|
|
m_chunk_details[chunk_index].m_endpoint_references[by][bx] = endpoint_reference;
|
|
m_chunk_details[chunk_index].m_reference_group |= endpoint_reference << (bx << 2 | by << 1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
struct optimize_color_endpoint_codebook_params {
|
|
crnlib::vector<uint>* m_pTrial_color_endpoint_remap;
|
|
uint m_iter_index;
|
|
uint m_max_iter_index;
|
|
hist_type* xhist;
|
|
};
|
|
|
|
void crn_comp::optimize_color_endpoint_codebook_task(uint64 data, void* pData_ptr) {
|
|
data;
|
|
optimize_color_endpoint_codebook_params* pParams = reinterpret_cast<optimize_color_endpoint_codebook_params*>(pData_ptr);
|
|
|
|
if (pParams->m_iter_index == pParams->m_max_iter_index) {
|
|
sort_color_endpoint_codebook(*pParams->m_pTrial_color_endpoint_remap, m_hvq.get_color_endpoint_vec());
|
|
} else {
|
|
float f = pParams->m_iter_index / static_cast<float>(pParams->m_max_iter_index - 1);
|
|
|
|
create_zeng_reorder_table(
|
|
m_hvq.get_color_endpoint_codebook_size(),
|
|
*pParams->xhist,
|
|
*pParams->m_pTrial_color_endpoint_remap,
|
|
pParams->m_iter_index ? color_endpoint_similarity_func : NULL,
|
|
&m_hvq,
|
|
f);
|
|
}
|
|
|
|
crnlib_delete(pParams);
|
|
}
|
|
|
|
bool crn_comp::optimize_color_endpoint_codebook(crnlib::vector<uint>& remapping) {
|
|
if (m_pParams->m_flags & cCRNCompFlagQuick) {
|
|
remapping.resize(m_hvq.get_color_endpoint_vec().size());
|
|
for (uint i = 0; i < m_hvq.get_color_endpoint_vec().size(); i++)
|
|
remapping[i] = i;
|
|
|
|
if (!pack_color_endpoints(m_packed_color_endpoints, remapping, 0))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
const uint cMaxEndpointRemapIters = 3;
|
|
|
|
uint best_bits = UINT_MAX;
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("----- Begin optimization of color endpoint codebook");
|
|
#endif
|
|
|
|
crnlib::vector<uint> trial_color_endpoint_remaps[cMaxEndpointRemapIters + 1];
|
|
|
|
uint n = m_hvq.get_color_endpoint_codebook_size();
|
|
hist_type xhist(n * n);
|
|
uint endpoint_index[2][2] = {};
|
|
for (uint chunk_index = 0; chunk_index < m_chunks.size(); chunk_index++) {
|
|
const chunk_detail& details = m_chunk_details[chunk_index];
|
|
for (uint y = 0; y < 2; y++) {
|
|
for (uint x = 0; x < 2; x++) {
|
|
endpoint_index[y][x] = details.m_endpoint_indices[y][x][cColor];
|
|
if (!details.m_endpoint_references[y][x]) {
|
|
update_hist(xhist, endpoint_index[y][x], endpoint_index[y][x ^ 1], n);
|
|
update_hist(xhist, endpoint_index[y][x ^ 1], endpoint_index[y][x], n);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
for (uint i = 0; i <= cMaxEndpointRemapIters; i++) {
|
|
optimize_color_endpoint_codebook_params* pParams = crnlib_new<optimize_color_endpoint_codebook_params>();
|
|
pParams->m_iter_index = i;
|
|
pParams->m_max_iter_index = cMaxEndpointRemapIters;
|
|
pParams->m_pTrial_color_endpoint_remap = &trial_color_endpoint_remaps[i];
|
|
pParams->xhist = &xhist;
|
|
|
|
m_task_pool.queue_object_task(this, &crn_comp::optimize_color_endpoint_codebook_task, 0, pParams);
|
|
}
|
|
|
|
m_task_pool.join();
|
|
|
|
for (uint i = 0; i <= cMaxEndpointRemapIters; i++) {
|
|
if (!update_progress(20, i, cMaxEndpointRemapIters + 1))
|
|
return false;
|
|
|
|
crnlib::vector<uint>& trial_color_endpoint_remap = trial_color_endpoint_remaps[i];
|
|
|
|
crnlib::vector<uint8> packed_data;
|
|
if (!pack_color_endpoints(packed_data, trial_color_endpoint_remap, i))
|
|
return false;
|
|
|
|
uint total_packed_chunk_bits;
|
|
if (!pack_chunks_simulation(0, m_total_chunks, total_packed_chunk_bits, &trial_color_endpoint_remap, NULL, NULL, NULL))
|
|
return false;
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("Pack chunks simulation: %u bits", total_packed_chunk_bits);
|
|
#endif
|
|
|
|
uint total_bits = packed_data.size() * 8 + total_packed_chunk_bits;
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("Total bits: %u", total_bits);
|
|
#endif
|
|
|
|
if (total_bits < best_bits) {
|
|
m_packed_color_endpoints.swap(packed_data);
|
|
remapping.swap(trial_color_endpoint_remap);
|
|
best_bits = total_bits;
|
|
}
|
|
}
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("End optimization of color endpoint codebook");
|
|
#endif
|
|
|
|
return true;
|
|
}
|
|
|
|
struct optimize_color_selector_codebook_params {
|
|
crnlib::vector<uint>* m_pTrial_color_selector_remap;
|
|
uint m_iter_index;
|
|
uint m_max_iter_index;
|
|
hist_type* xhist;
|
|
};
|
|
|
|
void crn_comp::optimize_color_selector_codebook_task(uint64 data, void* pData_ptr) {
|
|
data;
|
|
optimize_color_selector_codebook_params* pParams = reinterpret_cast<optimize_color_selector_codebook_params*>(pData_ptr);
|
|
|
|
if (pParams->m_iter_index == pParams->m_max_iter_index) {
|
|
sort_selector_codebook(*pParams->m_pTrial_color_selector_remap, m_hvq.get_color_selectors_vec(), g_dxt1_to_linear);
|
|
} else {
|
|
float f = pParams->m_iter_index / static_cast<float>(pParams->m_max_iter_index - 1);
|
|
create_zeng_reorder_table(
|
|
m_hvq.get_color_selector_codebook_size(),
|
|
*pParams->xhist,
|
|
*pParams->m_pTrial_color_selector_remap,
|
|
pParams->m_iter_index ? color_selector_similarity_func : NULL,
|
|
(void*)&m_hvq.get_color_selectors_vec(),
|
|
f);
|
|
}
|
|
|
|
crnlib_delete(pParams);
|
|
}
|
|
|
|
bool crn_comp::optimize_color_selector_codebook(crnlib::vector<uint>& remapping) {
|
|
if (m_pParams->m_flags & cCRNCompFlagQuick) {
|
|
remapping.resize(m_hvq.get_color_selectors_vec().size());
|
|
for (uint i = 0; i < m_hvq.get_color_selectors_vec().size(); i++)
|
|
remapping[i] = i;
|
|
|
|
if (!pack_selectors(
|
|
m_packed_color_selectors,
|
|
m_hvq.get_color_selectors_vec(),
|
|
remapping,
|
|
3,
|
|
g_dxt1_to_linear, 0)) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
const uint cMaxSelectorRemapIters = 3;
|
|
|
|
uint best_bits = UINT_MAX;
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("----- Begin optimization of color selector codebook");
|
|
#endif
|
|
|
|
crnlib::vector<uint> trial_color_selector_remaps[cMaxSelectorRemapIters + 1];
|
|
|
|
uint n = m_hvq.get_color_selector_codebook_size();
|
|
hist_type xhist(n * n);
|
|
uint selector_index[2][2] = {};
|
|
for (uint chunk_index = 0; chunk_index < m_chunks.size(); chunk_index++) {
|
|
const chunk_detail& details = m_chunk_details[chunk_index];
|
|
for (uint y = 0; y < 2; y++) {
|
|
for (uint x = 0; x < 2; x++) {
|
|
selector_index[y][x] = details.m_selector_indices[y][x][cColor];
|
|
update_hist(xhist, selector_index[y][x], selector_index[y][x ^ 1], n);
|
|
update_hist(xhist, selector_index[y][x ^ 1], selector_index[y][x], n);
|
|
}
|
|
}
|
|
}
|
|
|
|
for (uint i = 0; i <= cMaxSelectorRemapIters; i++) {
|
|
optimize_color_selector_codebook_params* pParams = crnlib_new<optimize_color_selector_codebook_params>();
|
|
pParams->m_iter_index = i;
|
|
pParams->m_max_iter_index = cMaxSelectorRemapIters;
|
|
pParams->m_pTrial_color_selector_remap = &trial_color_selector_remaps[i];
|
|
pParams->xhist = &xhist;
|
|
|
|
m_task_pool.queue_object_task(this, &crn_comp::optimize_color_selector_codebook_task, 0, pParams);
|
|
}
|
|
|
|
m_task_pool.join();
|
|
|
|
for (uint i = 0; i <= cMaxSelectorRemapIters; i++) {
|
|
if (!update_progress(21, i, cMaxSelectorRemapIters + 1))
|
|
return false;
|
|
|
|
crnlib::vector<uint>& trial_color_selector_remap = trial_color_selector_remaps[i];
|
|
|
|
crnlib::vector<uint8> packed_data;
|
|
if (!pack_selectors(
|
|
packed_data,
|
|
m_hvq.get_color_selectors_vec(),
|
|
trial_color_selector_remap,
|
|
3,
|
|
g_dxt1_to_linear, i)) {
|
|
return false;
|
|
}
|
|
|
|
uint total_packed_chunk_bits;
|
|
if (!pack_chunks_simulation(0, m_total_chunks, total_packed_chunk_bits, NULL, &trial_color_selector_remap, NULL, NULL))
|
|
return false;
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("Pack chunks simulation: %u bits", total_packed_chunk_bits);
|
|
#endif
|
|
|
|
uint total_bits = packed_data.size() * 8 + total_packed_chunk_bits;
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("Total bits: %u", total_bits);
|
|
#endif
|
|
if (total_bits < best_bits) {
|
|
m_packed_color_selectors.swap(packed_data);
|
|
remapping.swap(trial_color_selector_remap);
|
|
best_bits = total_bits;
|
|
}
|
|
}
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("End optimization of color selector codebook");
|
|
#endif
|
|
|
|
return true;
|
|
}
|
|
|
|
struct optimize_alpha_endpoint_codebook_params {
|
|
crnlib::vector<uint>* m_pTrial_alpha_endpoint_remap;
|
|
uint m_iter_index;
|
|
uint m_max_iter_index;
|
|
hist_type* xhist;
|
|
};
|
|
|
|
void crn_comp::optimize_alpha_endpoint_codebook_task(uint64 data, void* pData_ptr) {
|
|
data;
|
|
optimize_alpha_endpoint_codebook_params* pParams = reinterpret_cast<optimize_alpha_endpoint_codebook_params*>(pData_ptr);
|
|
|
|
if (pParams->m_iter_index == pParams->m_max_iter_index) {
|
|
sort_alpha_endpoint_codebook(*pParams->m_pTrial_alpha_endpoint_remap, m_hvq.get_alpha_endpoint_vec());
|
|
} else {
|
|
float f = pParams->m_iter_index / static_cast<float>(pParams->m_max_iter_index - 1);
|
|
|
|
create_zeng_reorder_table(
|
|
m_hvq.get_alpha_endpoint_codebook_size(),
|
|
*pParams->xhist,
|
|
*pParams->m_pTrial_alpha_endpoint_remap,
|
|
pParams->m_iter_index ? alpha_endpoint_similarity_func : NULL,
|
|
&m_hvq,
|
|
f);
|
|
}
|
|
|
|
crnlib_delete(pParams);
|
|
}
|
|
|
|
bool crn_comp::optimize_alpha_endpoint_codebook(crnlib::vector<uint>& remapping) {
|
|
if (m_pParams->m_flags & cCRNCompFlagQuick) {
|
|
remapping.resize(m_hvq.get_alpha_endpoint_vec().size());
|
|
for (uint i = 0; i < m_hvq.get_alpha_endpoint_vec().size(); i++)
|
|
remapping[i] = i;
|
|
|
|
if (!pack_alpha_endpoints(m_packed_alpha_endpoints, remapping, 0))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
const uint cMaxEndpointRemapIters = 3;
|
|
uint best_bits = UINT_MAX;
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("----- Begin optimization of alpha endpoint codebook");
|
|
#endif
|
|
|
|
crnlib::vector<uint> trial_alpha_endpoint_remaps[cMaxEndpointRemapIters + 1];
|
|
|
|
uint n = m_hvq.get_alpha_endpoint_codebook_size();
|
|
hist_type xhist(n * n);
|
|
uint endpoint_index[2][2][cNumComps] = {};
|
|
uint min_comp_index = m_has_comp[cAlpha0] ? cAlpha0 : cAlpha1, max_comp_index = m_has_comp[cAlpha1] ? cAlpha1 : cAlpha0;
|
|
for (uint chunk_index = 0; chunk_index < m_chunks.size(); chunk_index++) {
|
|
const chunk_detail& details = m_chunk_details[chunk_index];
|
|
for (uint y = 0; y < 2; y++) {
|
|
for (uint x = 0; x < 2; x++) {
|
|
for (uint comp_index = min_comp_index; comp_index <= max_comp_index; comp_index++) {
|
|
endpoint_index[y][x][comp_index] = details.m_endpoint_indices[y][x][comp_index];
|
|
if (!details.m_endpoint_references[y][x]) {
|
|
update_hist(xhist, endpoint_index[y][x][comp_index], endpoint_index[y][x ^ 1][comp_index], n);
|
|
update_hist(xhist, endpoint_index[y][x ^ 1][comp_index], endpoint_index[y][x][comp_index], n);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
for (uint i = 0; i <= cMaxEndpointRemapIters; i++) {
|
|
optimize_alpha_endpoint_codebook_params* pParams = crnlib_new<optimize_alpha_endpoint_codebook_params>();
|
|
pParams->m_iter_index = i;
|
|
pParams->m_max_iter_index = cMaxEndpointRemapIters;
|
|
pParams->m_pTrial_alpha_endpoint_remap = &trial_alpha_endpoint_remaps[i];
|
|
pParams->xhist = &xhist;
|
|
|
|
m_task_pool.queue_object_task(this, &crn_comp::optimize_alpha_endpoint_codebook_task, 0, pParams);
|
|
}
|
|
|
|
m_task_pool.join();
|
|
|
|
for (uint i = 0; i <= cMaxEndpointRemapIters; i++) {
|
|
if (!update_progress(22, i, cMaxEndpointRemapIters + 1))
|
|
return false;
|
|
|
|
crnlib::vector<uint>& trial_alpha_endpoint_remap = trial_alpha_endpoint_remaps[i];
|
|
|
|
crnlib::vector<uint8> packed_data;
|
|
if (!pack_alpha_endpoints(packed_data, trial_alpha_endpoint_remap, i))
|
|
return false;
|
|
|
|
uint total_packed_chunk_bits;
|
|
if (!pack_chunks_simulation(0, m_total_chunks, total_packed_chunk_bits, NULL, NULL, &trial_alpha_endpoint_remap, NULL))
|
|
return false;
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("Pack chunks simulation: %u bits", total_packed_chunk_bits);
|
|
#endif
|
|
|
|
uint total_bits = packed_data.size() * 8 + total_packed_chunk_bits;
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("Total bits: %u", total_bits);
|
|
#endif
|
|
|
|
if (total_bits < best_bits) {
|
|
m_packed_alpha_endpoints.swap(packed_data);
|
|
remapping.swap(trial_alpha_endpoint_remap);
|
|
best_bits = total_bits;
|
|
}
|
|
}
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("End optimization of alpha endpoint codebook");
|
|
#endif
|
|
|
|
return true;
|
|
}
|
|
|
|
struct optimize_alpha_selector_codebook_params {
|
|
crnlib::vector<uint>* m_pTrial_alpha_selector_remap;
|
|
uint m_iter_index;
|
|
uint m_max_iter_index;
|
|
hist_type* xhist;
|
|
};
|
|
|
|
void crn_comp::optimize_alpha_selector_codebook_task(uint64 data, void* pData_ptr) {
|
|
data;
|
|
optimize_alpha_selector_codebook_params* pParams = reinterpret_cast<optimize_alpha_selector_codebook_params*>(pData_ptr);
|
|
|
|
if (pParams->m_iter_index == pParams->m_max_iter_index) {
|
|
sort_selector_codebook(*pParams->m_pTrial_alpha_selector_remap, m_hvq.get_alpha_selectors_vec(), g_dxt5_to_linear);
|
|
} else {
|
|
float f = pParams->m_iter_index / static_cast<float>(pParams->m_max_iter_index - 1);
|
|
create_zeng_reorder_table(
|
|
m_hvq.get_alpha_selector_codebook_size(),
|
|
*pParams->xhist,
|
|
*pParams->m_pTrial_alpha_selector_remap,
|
|
pParams->m_iter_index ? alpha_selector_similarity_func : NULL,
|
|
(void*)&m_hvq.get_alpha_selectors_vec(),
|
|
f);
|
|
}
|
|
}
|
|
|
|
bool crn_comp::optimize_alpha_selector_codebook(crnlib::vector<uint>& remapping) {
|
|
if (m_pParams->m_flags & cCRNCompFlagQuick) {
|
|
remapping.resize(m_hvq.get_alpha_selectors_vec().size());
|
|
for (uint i = 0; i < m_hvq.get_alpha_selectors_vec().size(); i++)
|
|
remapping[i] = i;
|
|
|
|
if (!pack_selectors(
|
|
m_packed_alpha_selectors,
|
|
m_hvq.get_alpha_selectors_vec(),
|
|
remapping,
|
|
7,
|
|
g_dxt5_to_linear, 0)) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
const uint cMaxSelectorRemapIters = 3;
|
|
|
|
uint best_bits = UINT_MAX;
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("----- Begin optimization of alpha selector codebook");
|
|
#endif
|
|
|
|
crnlib::vector<uint> trial_alpha_selector_remaps[cMaxSelectorRemapIters + 1];
|
|
|
|
uint n = m_hvq.get_alpha_selector_codebook_size();
|
|
hist_type xhist(n * n);
|
|
uint selector_index[cNumComps][2][2] = {};
|
|
uint min_comp_index = m_has_comp[cAlpha0] ? cAlpha0 : cAlpha1, max_comp_index = m_has_comp[cAlpha1] ? cAlpha1 : cAlpha0;
|
|
for (uint chunk_index = 0; chunk_index < m_chunks.size(); chunk_index++) {
|
|
const chunk_detail& details = m_chunk_details[chunk_index];
|
|
for (uint comp_index = min_comp_index; comp_index <= max_comp_index; comp_index++) {
|
|
for (uint y = 0; y < 2; y++) {
|
|
for (uint x = 0; x < 2; x++) {
|
|
selector_index[comp_index][y][x] = details.m_selector_indices[y][x][comp_index];
|
|
update_hist(xhist, selector_index[comp_index][y][x], selector_index[comp_index][y][x ^ 1], n);
|
|
update_hist(xhist, selector_index[comp_index][y][x ^ 1], selector_index[comp_index][y][x], n);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
for (uint i = 0; i <= cMaxSelectorRemapIters; i++) {
|
|
optimize_alpha_selector_codebook_params* pParams = crnlib_new<optimize_alpha_selector_codebook_params>();
|
|
pParams->m_iter_index = i;
|
|
pParams->m_max_iter_index = cMaxSelectorRemapIters;
|
|
pParams->m_pTrial_alpha_selector_remap = &trial_alpha_selector_remaps[i];
|
|
pParams->xhist = &xhist;
|
|
|
|
m_task_pool.queue_object_task(this, &crn_comp::optimize_alpha_selector_codebook_task, 0, pParams);
|
|
}
|
|
|
|
m_task_pool.join();
|
|
|
|
for (uint i = 0; i <= cMaxSelectorRemapIters; i++) {
|
|
if (!update_progress(23, i, cMaxSelectorRemapIters + 1))
|
|
return false;
|
|
|
|
crnlib::vector<uint>& trial_alpha_selector_remap = trial_alpha_selector_remaps[i];
|
|
|
|
crnlib::vector<uint8> packed_data;
|
|
if (!pack_selectors(
|
|
packed_data,
|
|
m_hvq.get_alpha_selectors_vec(),
|
|
trial_alpha_selector_remap,
|
|
7,
|
|
g_dxt5_to_linear, i)) {
|
|
return false;
|
|
}
|
|
|
|
uint total_packed_chunk_bits;
|
|
if (!pack_chunks_simulation(0, m_total_chunks, total_packed_chunk_bits, NULL, NULL, NULL, &trial_alpha_selector_remap))
|
|
return false;
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("Pack chunks simulation: %u bits", total_packed_chunk_bits);
|
|
#endif
|
|
|
|
uint total_bits = packed_data.size() * 8 + total_packed_chunk_bits;
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("Total bits: %u", total_bits);
|
|
#endif
|
|
if (total_bits < best_bits) {
|
|
m_packed_alpha_selectors.swap(packed_data);
|
|
|
|
remapping.swap(trial_alpha_selector_remap);
|
|
best_bits = total_bits;
|
|
}
|
|
}
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
console::debug("End optimization of alpha selector codebook");
|
|
#endif
|
|
|
|
return true;
|
|
}
|
|
|
|
bool crn_comp::pack_data_models() {
|
|
symbol_codec codec;
|
|
codec.start_encoding(1024 * 1024);
|
|
|
|
if (!codec.encode_transmit_static_huffman_data_model(m_reference_encoding_dm, false))
|
|
return false;
|
|
|
|
for (uint i = 0; i < 2; i++) {
|
|
if (m_endpoint_index_dm[i].get_total_syms()) {
|
|
if (!codec.encode_transmit_static_huffman_data_model(m_endpoint_index_dm[i], false))
|
|
return false;
|
|
}
|
|
|
|
if (m_selector_index_dm[i].get_total_syms()) {
|
|
if (!codec.encode_transmit_static_huffman_data_model(m_selector_index_dm[i], false))
|
|
return false;
|
|
}
|
|
}
|
|
|
|
codec.stop_encoding(false);
|
|
|
|
m_packed_data_models.swap(codec.get_encoding_buf());
|
|
|
|
return true;
|
|
}
|
|
|
|
bool crn_comp::create_comp_data() {
|
|
utils::zero_object(m_crn_header);
|
|
|
|
m_crn_header.m_width = static_cast<uint16>(m_pParams->m_width);
|
|
m_crn_header.m_height = static_cast<uint16>(m_pParams->m_height);
|
|
m_crn_header.m_levels = static_cast<uint8>(m_pParams->m_levels);
|
|
m_crn_header.m_faces = static_cast<uint8>(m_pParams->m_faces);
|
|
m_crn_header.m_format = static_cast<uint8>(m_pParams->m_format);
|
|
m_crn_header.m_userdata0 = m_pParams->m_userdata0;
|
|
m_crn_header.m_userdata1 = m_pParams->m_userdata1;
|
|
|
|
m_comp_data.clear();
|
|
m_comp_data.reserve(2 * 1024 * 1024);
|
|
append_vec(m_comp_data, &m_crn_header, sizeof(m_crn_header));
|
|
// tack on the rest of the variable size m_level_ofs array
|
|
m_comp_data.resize(m_comp_data.size() + sizeof(m_crn_header.m_level_ofs[0]) * (m_pParams->m_levels - 1));
|
|
|
|
if (m_packed_color_endpoints.size()) {
|
|
m_crn_header.m_color_endpoints.m_num = static_cast<uint16>(m_hvq.get_color_endpoint_codebook_size());
|
|
m_crn_header.m_color_endpoints.m_size = m_packed_color_endpoints.size();
|
|
m_crn_header.m_color_endpoints.m_ofs = m_comp_data.size();
|
|
append_vec(m_comp_data, m_packed_color_endpoints);
|
|
}
|
|
|
|
if (m_packed_color_selectors.size()) {
|
|
m_crn_header.m_color_selectors.m_num = static_cast<uint16>(m_hvq.get_color_selector_codebook_size());
|
|
m_crn_header.m_color_selectors.m_size = m_packed_color_selectors.size();
|
|
m_crn_header.m_color_selectors.m_ofs = m_comp_data.size();
|
|
append_vec(m_comp_data, m_packed_color_selectors);
|
|
}
|
|
|
|
if (m_packed_alpha_endpoints.size()) {
|
|
m_crn_header.m_alpha_endpoints.m_num = static_cast<uint16>(m_hvq.get_alpha_endpoint_codebook_size());
|
|
m_crn_header.m_alpha_endpoints.m_size = m_packed_alpha_endpoints.size();
|
|
m_crn_header.m_alpha_endpoints.m_ofs = m_comp_data.size();
|
|
append_vec(m_comp_data, m_packed_alpha_endpoints);
|
|
}
|
|
|
|
if (m_packed_alpha_selectors.size()) {
|
|
m_crn_header.m_alpha_selectors.m_num = static_cast<uint16>(m_hvq.get_alpha_selector_codebook_size());
|
|
m_crn_header.m_alpha_selectors.m_size = m_packed_alpha_selectors.size();
|
|
m_crn_header.m_alpha_selectors.m_ofs = m_comp_data.size();
|
|
append_vec(m_comp_data, m_packed_alpha_selectors);
|
|
}
|
|
|
|
m_crn_header.m_tables_ofs = m_comp_data.size();
|
|
m_crn_header.m_tables_size = m_packed_data_models.size();
|
|
append_vec(m_comp_data, m_packed_data_models);
|
|
|
|
uint level_ofs[cCRNMaxLevels];
|
|
for (uint i = 0; i < m_mip_groups.size(); i++) {
|
|
level_ofs[i] = m_comp_data.size();
|
|
append_vec(m_comp_data, m_packed_chunks[i]);
|
|
}
|
|
|
|
crnd::crn_header& dst_header = *(crnd::crn_header*)&m_comp_data[0];
|
|
// don't change the m_comp_data vector - or dst_header will be invalidated!
|
|
|
|
memcpy(&dst_header, &m_crn_header, sizeof(dst_header));
|
|
|
|
for (uint i = 0; i < m_mip_groups.size(); i++)
|
|
dst_header.m_level_ofs[i] = level_ofs[i];
|
|
|
|
const uint actual_header_size = sizeof(crnd::crn_header) + sizeof(dst_header.m_level_ofs[0]) * (m_mip_groups.size() - 1);
|
|
|
|
dst_header.m_sig = crnd::crn_header::cCRNSigValue;
|
|
|
|
dst_header.m_data_size = m_comp_data.size();
|
|
dst_header.m_data_crc16 = crc16(&m_comp_data[actual_header_size], m_comp_data.size() - actual_header_size);
|
|
|
|
dst_header.m_header_size = actual_header_size;
|
|
dst_header.m_header_crc16 = crc16(&dst_header.m_data_size, actual_header_size - (uint)((uint8*)&dst_header.m_data_size - (uint8*)&dst_header));
|
|
|
|
return true;
|
|
}
|
|
|
|
bool crn_comp::update_progress(uint phase_index, uint subphase_index, uint subphase_total) {
|
|
if (!m_pParams->m_pProgress_func)
|
|
return true;
|
|
|
|
#if CRNLIB_ENABLE_DEBUG_MESSAGES
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging)
|
|
return true;
|
|
#endif
|
|
|
|
return (*m_pParams->m_pProgress_func)(phase_index, cTotalCompressionPhases, subphase_index, subphase_total, m_pParams->m_pProgress_func_data) != 0;
|
|
}
|
|
|
|
bool crn_comp::compress_internal() {
|
|
if (!alias_images())
|
|
return false;
|
|
|
|
create_chunks();
|
|
|
|
if (!quantize_chunks())
|
|
return false;
|
|
|
|
create_chunk_indices();
|
|
|
|
crnlib::vector<uint> endpoint_remap[2];
|
|
crnlib::vector<uint> selector_remap[2];
|
|
|
|
if (m_has_comp[cColor]) {
|
|
if (!optimize_color_endpoint_codebook(endpoint_remap[0]))
|
|
return false;
|
|
if (!optimize_color_selector_codebook(selector_remap[0]))
|
|
return false;
|
|
}
|
|
|
|
if (m_has_comp[cAlpha0]) {
|
|
if (!optimize_alpha_endpoint_codebook(endpoint_remap[1]))
|
|
return false;
|
|
if (!optimize_alpha_selector_codebook(selector_remap[1]))
|
|
return false;
|
|
}
|
|
|
|
m_chunk_encoding_hist.clear();
|
|
for (uint i = 0; i < 2; i++) {
|
|
m_endpoint_index_hist[i].clear();
|
|
m_endpoint_index_dm[i].clear();
|
|
m_selector_index_hist[i].clear();
|
|
m_selector_index_dm[i].clear();
|
|
}
|
|
|
|
for (uint pass = 0; pass < 2; pass++) {
|
|
for (uint mip_group = 0; mip_group < m_mip_groups.size(); mip_group++) {
|
|
symbol_codec codec;
|
|
codec.start_encoding(2 * 1024 * 1024);
|
|
|
|
if (!pack_chunks(
|
|
mip_group,
|
|
!pass && !mip_group, pass ? &codec : NULL,
|
|
m_has_comp[cColor] ? &endpoint_remap[0] : NULL, m_has_comp[cColor] ? &selector_remap[0] : NULL,
|
|
m_has_comp[cAlpha0] ? &endpoint_remap[1] : NULL, m_has_comp[cAlpha0] ? &selector_remap[1] : NULL)) {
|
|
return false;
|
|
}
|
|
|
|
codec.stop_encoding(false);
|
|
|
|
if (pass)
|
|
m_packed_chunks[mip_group].swap(codec.get_encoding_buf());
|
|
}
|
|
|
|
if (!pass) {
|
|
m_reference_encoding_dm.init(true, m_chunk_encoding_hist, 16);
|
|
|
|
for (uint i = 0; i < 2; i++) {
|
|
if (m_endpoint_index_hist[i].size())
|
|
m_endpoint_index_dm[i].init(true, m_endpoint_index_hist[i], 16);
|
|
|
|
if (m_selector_index_hist[i].size())
|
|
m_selector_index_dm[i].init(true, m_selector_index_hist[i], 16);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!pack_data_models())
|
|
return false;
|
|
|
|
if (!create_comp_data())
|
|
return false;
|
|
|
|
if (!update_progress(24, 1, 1))
|
|
return false;
|
|
|
|
if (m_pParams->m_flags & cCRNCompFlagDebugging) {
|
|
crnlib_print_mem_stats();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool crn_comp::compress_init(const crn_comp_params& params) {
|
|
params;
|
|
return true;
|
|
}
|
|
|
|
bool crn_comp::compress_pass(const crn_comp_params& params, float* pEffective_bitrate) {
|
|
clear();
|
|
|
|
if (pEffective_bitrate)
|
|
*pEffective_bitrate = 0.0f;
|
|
|
|
m_pParams = ¶ms;
|
|
|
|
if ((math::minimum(m_pParams->m_width, m_pParams->m_height) < 1) || (math::maximum(m_pParams->m_width, m_pParams->m_height) > cCRNMaxLevelResolution))
|
|
return false;
|
|
|
|
if (!m_task_pool.init(params.m_num_helper_threads))
|
|
return false;
|
|
|
|
bool status = compress_internal();
|
|
|
|
m_task_pool.deinit();
|
|
|
|
if ((status) && (pEffective_bitrate)) {
|
|
uint total_pixels = 0;
|
|
|
|
for (uint f = 0; f < m_pParams->m_faces; f++)
|
|
for (uint l = 0; l < m_pParams->m_levels; l++)
|
|
total_pixels += m_images[f][l].get_total_pixels();
|
|
|
|
*pEffective_bitrate = (m_comp_data.size() * 8.0f) / total_pixels;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
void crn_comp::compress_deinit() {
|
|
}
|
|
|
|
} // namespace crnlib
|