573 lines
17 KiB
C++
573 lines
17 KiB
C++
/**************************************************************************/
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/* image_compress_betsy.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "image_compress_betsy.h"
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#include "core/config/project_settings.h"
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#include "betsy_bc1.h"
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#include "bc1.glsl.gen.h"
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#include "bc4.glsl.gen.h"
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#include "bc6h.glsl.gen.h"
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static Mutex betsy_mutex;
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static BetsyCompressor *betsy = nullptr;
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void BetsyCompressor::_init() {
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// Create local RD.
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RenderingContextDriver *rcd = nullptr;
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RenderingDevice *rd = RenderingServer::get_singleton()->create_local_rendering_device();
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if (rd == nullptr) {
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#if defined(RD_ENABLED)
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#if defined(METAL_ENABLED)
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rcd = memnew(RenderingContextDriverMetal);
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rd = memnew(RenderingDevice);
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#endif
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#if defined(VULKAN_ENABLED)
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if (rcd == nullptr) {
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rcd = memnew(RenderingContextDriverVulkan);
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rd = memnew(RenderingDevice);
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}
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#endif
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#endif
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if (rcd != nullptr && rd != nullptr) {
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Error err = rcd->initialize();
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if (err == OK) {
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err = rd->initialize(rcd);
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}
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if (err != OK) {
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memdelete(rd);
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memdelete(rcd);
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rd = nullptr;
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rcd = nullptr;
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}
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}
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}
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ERR_FAIL_NULL_MSG(rd, "Unable to create a local RenderingDevice.");
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compress_rd = rd;
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compress_rcd = rcd;
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// Create the sampler state.
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RD::SamplerState src_sampler_state;
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{
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src_sampler_state.repeat_u = RD::SAMPLER_REPEAT_MODE_CLAMP_TO_EDGE;
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src_sampler_state.repeat_v = RD::SAMPLER_REPEAT_MODE_CLAMP_TO_EDGE;
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src_sampler_state.mag_filter = RD::SAMPLER_FILTER_NEAREST;
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src_sampler_state.min_filter = RD::SAMPLER_FILTER_NEAREST;
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src_sampler_state.mip_filter = RD::SAMPLER_FILTER_NEAREST;
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}
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src_sampler = compress_rd->sampler_create(src_sampler_state);
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}
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void BetsyCompressor::init() {
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WorkerThreadPool::TaskID tid = WorkerThreadPool::get_singleton()->add_task(callable_mp(this, &BetsyCompressor::_thread_loop), true);
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command_queue.set_pump_task_id(tid);
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command_queue.push(this, &BetsyCompressor::_assign_mt_ids, tid);
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command_queue.push_and_sync(this, &BetsyCompressor::_init);
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DEV_ASSERT(task_id == tid);
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}
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void BetsyCompressor::_assign_mt_ids(WorkerThreadPool::TaskID p_pump_task_id) {
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task_id = p_pump_task_id;
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}
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// Yield thread to WTP so other tasks can be done on it.
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// Automatically regains control as soon a task is pushed to the command queue.
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void BetsyCompressor::_thread_loop() {
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while (!exit) {
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WorkerThreadPool::get_singleton()->yield();
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command_queue.flush_all();
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}
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}
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void BetsyCompressor::_thread_exit() {
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exit = true;
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if (compress_rd != nullptr) {
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if (dxt1_encoding_table_buffer.is_valid()) {
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compress_rd->free(dxt1_encoding_table_buffer);
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}
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compress_rd->free(src_sampler);
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// Clear the shader cache, pipelines will be unreferenced automatically.
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for (KeyValue<String, BetsyShader> &E : cached_shaders) {
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if (E.value.compiled.is_valid()) {
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compress_rd->free(E.value.compiled);
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}
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}
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cached_shaders.clear();
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}
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}
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void BetsyCompressor::finish() {
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command_queue.push(this, &BetsyCompressor::_thread_exit);
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if (task_id != WorkerThreadPool::INVALID_TASK_ID) {
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WorkerThreadPool::get_singleton()->wait_for_task_completion(task_id);
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task_id = WorkerThreadPool::INVALID_TASK_ID;
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}
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if (compress_rd != nullptr) {
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// Free the RD (and RCD if necessary).
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memdelete(compress_rd);
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compress_rd = nullptr;
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if (compress_rcd != nullptr) {
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memdelete(compress_rcd);
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compress_rcd = nullptr;
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}
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}
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}
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// Helper functions.
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static int get_next_multiple(int n, int m) {
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return n + (m - (n % m));
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}
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static String get_shader_name(BetsyFormat p_format) {
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switch (p_format) {
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case BETSY_FORMAT_BC1:
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case BETSY_FORMAT_BC1_DITHER:
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return "BC1";
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case BETSY_FORMAT_BC3:
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return "BC3";
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case BETSY_FORMAT_BC4_SIGNED:
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case BETSY_FORMAT_BC4_UNSIGNED:
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return "BC4";
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case BETSY_FORMAT_BC6_SIGNED:
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case BETSY_FORMAT_BC6_UNSIGNED:
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return "BC6";
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default:
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return "";
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}
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}
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Error BetsyCompressor::_compress(BetsyFormat p_format, Image *r_img) {
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uint64_t start_time = OS::get_singleton()->get_ticks_msec();
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if (r_img->is_compressed()) {
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return ERR_INVALID_DATA;
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}
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Error err = OK;
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// Destination format.
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Image::Format dest_format = Image::FORMAT_MAX;
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RD::DataFormat dst_rd_format = RD::DATA_FORMAT_MAX;
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String version = "";
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switch (p_format) {
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case BETSY_FORMAT_BC1:
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version = "standard";
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dst_rd_format = RD::DATA_FORMAT_R32G32_UINT;
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dest_format = Image::FORMAT_DXT1;
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break;
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case BETSY_FORMAT_BC1_DITHER:
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version = "dithered";
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dst_rd_format = RD::DATA_FORMAT_R32G32_UINT;
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dest_format = Image::FORMAT_DXT1;
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break;
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case BETSY_FORMAT_BC4_UNSIGNED:
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version = "unsigned";
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dst_rd_format = RD::DATA_FORMAT_R32G32_UINT;
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dest_format = Image::FORMAT_RGTC_R;
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break;
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case BETSY_FORMAT_BC6_SIGNED:
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version = "signed";
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dst_rd_format = RD::DATA_FORMAT_R32G32B32A32_UINT;
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dest_format = Image::FORMAT_BPTC_RGBF;
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break;
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case BETSY_FORMAT_BC6_UNSIGNED:
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version = "unsigned";
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dst_rd_format = RD::DATA_FORMAT_R32G32B32A32_UINT;
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dest_format = Image::FORMAT_BPTC_RGBFU;
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break;
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default:
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err = ERR_INVALID_PARAMETER;
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break;
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}
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const String shader_name = get_shader_name(p_format) + "-" + version;
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BetsyShader shader;
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if (cached_shaders.has(shader_name)) {
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shader = cached_shaders[shader_name];
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} else {
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Ref<RDShaderFile> source;
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source.instantiate();
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switch (p_format) {
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case BETSY_FORMAT_BC1:
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case BETSY_FORMAT_BC1_DITHER:
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err = source->parse_versions_from_text(bc1_shader_glsl);
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break;
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case BETSY_FORMAT_BC4_SIGNED:
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case BETSY_FORMAT_BC4_UNSIGNED:
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err = source->parse_versions_from_text(bc4_shader_glsl);
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break;
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case BETSY_FORMAT_BC6_SIGNED:
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case BETSY_FORMAT_BC6_UNSIGNED:
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err = source->parse_versions_from_text(bc6h_shader_glsl);
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break;
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default:
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err = ERR_INVALID_PARAMETER;
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break;
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}
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if (err != OK) {
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source->print_errors("Betsy compress shader");
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return err;
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}
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// Compile the shader, return early if invalid.
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shader.compiled = compress_rd->shader_create_from_spirv(source->get_spirv_stages(version));
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if (shader.compiled.is_null()) {
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return ERR_CANT_CREATE;
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}
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// Compile the pipeline, return early if invalid.
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shader.pipeline = compress_rd->compute_pipeline_create(shader.compiled);
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if (shader.pipeline.is_null()) {
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return ERR_CANT_CREATE;
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}
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cached_shaders[shader_name] = shader;
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}
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if (shader.compiled.is_null() || shader.pipeline.is_null()) {
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return ERR_INVALID_DATA;
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}
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// src_texture format information.
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RD::TextureFormat src_texture_format;
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{
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src_texture_format.array_layers = 1;
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src_texture_format.depth = 1;
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src_texture_format.mipmaps = 1;
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src_texture_format.texture_type = RD::TEXTURE_TYPE_2D;
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src_texture_format.usage_bits = RD::TEXTURE_USAGE_SAMPLING_BIT | RD::TEXTURE_USAGE_CAN_UPDATE_BIT | RD::TEXTURE_USAGE_CAN_COPY_TO_BIT;
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}
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switch (r_img->get_format()) {
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case Image::FORMAT_L8:
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r_img->convert(Image::FORMAT_RGBA8);
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src_texture_format.format = RD::DATA_FORMAT_R8G8B8A8_UNORM;
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break;
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case Image::FORMAT_LA8:
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r_img->convert(Image::FORMAT_RGBA8);
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src_texture_format.format = RD::DATA_FORMAT_R8G8B8A8_UNORM;
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break;
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case Image::FORMAT_R8:
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src_texture_format.format = RD::DATA_FORMAT_R8_UNORM;
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break;
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case Image::FORMAT_RG8:
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src_texture_format.format = RD::DATA_FORMAT_R8G8_UNORM;
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break;
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case Image::FORMAT_RGB8:
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r_img->convert(Image::FORMAT_RGBA8);
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src_texture_format.format = RD::DATA_FORMAT_R8G8B8A8_UNORM;
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break;
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case Image::FORMAT_RGBA8:
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src_texture_format.format = RD::DATA_FORMAT_R8G8B8A8_UNORM;
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break;
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case Image::FORMAT_RH:
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src_texture_format.format = RD::DATA_FORMAT_R16_SFLOAT;
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break;
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case Image::FORMAT_RGH:
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src_texture_format.format = RD::DATA_FORMAT_R16G16_SFLOAT;
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break;
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case Image::FORMAT_RGBH:
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r_img->convert(Image::FORMAT_RGBAH);
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src_texture_format.format = RD::DATA_FORMAT_R16G16B16A16_SFLOAT;
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break;
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case Image::FORMAT_RGBAH:
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src_texture_format.format = RD::DATA_FORMAT_R16G16B16A16_SFLOAT;
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break;
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case Image::FORMAT_RF:
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src_texture_format.format = RD::DATA_FORMAT_R32_SFLOAT;
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break;
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case Image::FORMAT_RGF:
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src_texture_format.format = RD::DATA_FORMAT_R32G32_SFLOAT;
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break;
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case Image::FORMAT_RGBF:
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r_img->convert(Image::FORMAT_RGBAF);
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src_texture_format.format = RD::DATA_FORMAT_R32G32B32A32_SFLOAT;
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break;
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case Image::FORMAT_RGBAF:
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src_texture_format.format = RD::DATA_FORMAT_R32G32B32A32_SFLOAT;
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break;
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case Image::FORMAT_RGBE9995:
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src_texture_format.format = RD::DATA_FORMAT_E5B9G9R9_UFLOAT_PACK32;
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break;
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default: {
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return err;
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}
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}
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// For the destination format just copy the source format and change the usage bits.
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RD::TextureFormat dst_texture_format = src_texture_format;
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dst_texture_format.usage_bits = RD::TEXTURE_USAGE_COLOR_ATTACHMENT_BIT | RD::TEXTURE_USAGE_STORAGE_BIT | RD::TEXTURE_USAGE_CAN_COPY_FROM_BIT | RD::TEXTURE_USAGE_CAN_COPY_TO_BIT | RD::TEXTURE_USAGE_CAN_UPDATE_BIT;
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dst_texture_format.format = dst_rd_format;
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// Encoding table setup.
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if (dest_format == Image::FORMAT_DXT1 && dxt1_encoding_table_buffer.is_null()) {
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Vector<uint8_t> data;
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data.resize(1024 * 4);
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memcpy(data.ptrw(), dxt1_encoding_table, 1024 * 4);
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dxt1_encoding_table_buffer = compress_rd->storage_buffer_create(1024 * 4, data);
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}
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const int mip_count = r_img->get_mipmap_count() + 1;
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// Container for the compressed data.
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Vector<uint8_t> dst_data;
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dst_data.resize(Image::get_image_data_size(r_img->get_width(), r_img->get_height(), dest_format, r_img->has_mipmaps()));
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uint8_t *dst_data_ptr = dst_data.ptrw();
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Vector<Vector<uint8_t>> src_images;
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src_images.push_back(Vector<uint8_t>());
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Vector<uint8_t> *src_image_ptr = src_images.ptrw();
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// Compress each mipmap.
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for (int i = 0; i < mip_count; i++) {
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int64_t ofs, size;
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int width, height;
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r_img->get_mipmap_offset_size_and_dimensions(i, ofs, size, width, height);
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// Set the source texture width and size.
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src_texture_format.height = height;
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src_texture_format.width = width;
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// Set the destination texture width and size.
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dst_texture_format.height = (height + 3) >> 2;
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dst_texture_format.width = (width + 3) >> 2;
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// Create a buffer filled with the source mip layer data.
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src_image_ptr[0].resize(size);
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memcpy(src_image_ptr[0].ptrw(), r_img->ptr() + ofs, size);
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// Create the textures on the GPU.
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RID src_texture = compress_rd->texture_create(src_texture_format, RD::TextureView(), src_images);
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RID dst_texture = compress_rd->texture_create(dst_texture_format, RD::TextureView());
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Vector<RD::Uniform> uniforms;
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{
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{
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RD::Uniform u;
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u.uniform_type = RD::UNIFORM_TYPE_SAMPLER_WITH_TEXTURE;
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u.binding = 0;
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u.append_id(src_sampler);
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u.append_id(src_texture);
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uniforms.push_back(u);
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}
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{
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RD::Uniform u;
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u.uniform_type = RD::UNIFORM_TYPE_IMAGE;
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u.binding = 1;
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u.append_id(dst_texture);
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uniforms.push_back(u);
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}
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if (dest_format == Image::FORMAT_DXT1) {
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RD::Uniform u;
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u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
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u.binding = 2;
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u.append_id(dxt1_encoding_table_buffer);
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uniforms.push_back(u);
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}
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}
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RID uniform_set = compress_rd->uniform_set_create(uniforms, shader.compiled, 0);
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RD::ComputeListID compute_list = compress_rd->compute_list_begin();
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compress_rd->compute_list_bind_compute_pipeline(compute_list, shader.pipeline);
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compress_rd->compute_list_bind_uniform_set(compute_list, uniform_set, 0);
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switch (dest_format) {
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case Image::FORMAT_BPTC_RGBFU:
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case Image::FORMAT_BPTC_RGBF: {
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BC6PushConstant push_constant;
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push_constant.sizeX = 1.0f / width;
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push_constant.sizeY = 1.0f / height;
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push_constant.padding[0] = 0;
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push_constant.padding[1] = 0;
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compress_rd->compute_list_set_push_constant(compute_list, &push_constant, sizeof(BC6PushConstant));
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compress_rd->compute_list_dispatch(compute_list, get_next_multiple(width, 32) / 32, get_next_multiple(height, 32) / 32, 1);
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} break;
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case Image::FORMAT_DXT1: {
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BC1PushConstant push_constant;
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push_constant.num_refines = 2;
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push_constant.padding[0] = 0;
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push_constant.padding[1] = 0;
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push_constant.padding[2] = 0;
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compress_rd->compute_list_set_push_constant(compute_list, &push_constant, sizeof(BC1PushConstant));
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compress_rd->compute_list_dispatch(compute_list, get_next_multiple(width, 32) / 32, get_next_multiple(height, 32) / 32, 1);
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} break;
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case Image::FORMAT_RGTC_R: {
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BC4PushConstant push_constant;
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push_constant.channel_idx = 0;
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push_constant.padding[0] = 0;
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push_constant.padding[1] = 0;
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push_constant.padding[2] = 0;
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compress_rd->compute_list_set_push_constant(compute_list, &push_constant, sizeof(BC4PushConstant));
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compress_rd->compute_list_dispatch(compute_list, 1, get_next_multiple(width, 16) / 16, get_next_multiple(height, 16) / 16);
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} break;
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default: {
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} break;
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|
}
|
|
|
|
compress_rd->compute_list_end();
|
|
|
|
compress_rd->submit();
|
|
compress_rd->sync();
|
|
|
|
// Copy data from the GPU to the buffer.
|
|
const Vector<uint8_t> texture_data = compress_rd->texture_get_data(dst_texture, 0);
|
|
int64_t dst_ofs = Image::get_image_mipmap_offset(r_img->get_width(), r_img->get_height(), dest_format, i);
|
|
|
|
memcpy(dst_data_ptr + dst_ofs, texture_data.ptr(), texture_data.size());
|
|
|
|
// Free the source and dest texture.
|
|
compress_rd->free(dst_texture);
|
|
compress_rd->free(src_texture);
|
|
}
|
|
|
|
src_images.clear();
|
|
|
|
// Set the compressed data to the image.
|
|
r_img->set_data(r_img->get_width(), r_img->get_height(), r_img->has_mipmaps(), dest_format, dst_data);
|
|
|
|
print_verbose(vformat("Betsy: Encoding took %d ms.", OS::get_singleton()->get_ticks_msec() - start_time));
|
|
|
|
return OK;
|
|
}
|
|
|
|
void ensure_betsy_exists() {
|
|
betsy_mutex.lock();
|
|
if (betsy == nullptr) {
|
|
betsy = memnew(BetsyCompressor);
|
|
betsy->init();
|
|
}
|
|
betsy_mutex.unlock();
|
|
}
|
|
|
|
Error _betsy_compress_bptc(Image *r_img, Image::UsedChannels p_channels) {
|
|
ensure_betsy_exists();
|
|
Image::Format format = r_img->get_format();
|
|
Error result = ERR_UNAVAILABLE;
|
|
|
|
if (format >= Image::FORMAT_RF && format <= Image::FORMAT_RGBE9995) {
|
|
if (r_img->detect_signed()) {
|
|
result = betsy->compress(BETSY_FORMAT_BC6_SIGNED, r_img);
|
|
} else {
|
|
result = betsy->compress(BETSY_FORMAT_BC6_UNSIGNED, r_img);
|
|
}
|
|
}
|
|
|
|
if (!GLOBAL_GET("rendering/textures/vram_compression/cache_gpu_compressor")) {
|
|
free_device();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
Error _betsy_compress_s3tc(Image *r_img, Image::UsedChannels p_channels) {
|
|
ensure_betsy_exists();
|
|
Error result = ERR_UNAVAILABLE;
|
|
|
|
switch (p_channels) {
|
|
case Image::USED_CHANNELS_RGB:
|
|
case Image::USED_CHANNELS_L:
|
|
result = betsy->compress(BETSY_FORMAT_BC1, r_img);
|
|
break;
|
|
|
|
case Image::USED_CHANNELS_R:
|
|
result = betsy->compress(BETSY_FORMAT_BC4_UNSIGNED, r_img);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (!GLOBAL_GET("rendering/textures/vram_compression/cache_gpu_compressor")) {
|
|
free_device();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
void free_device() {
|
|
if (betsy != nullptr) {
|
|
betsy->finish();
|
|
memdelete(betsy);
|
|
}
|
|
}
|