1426cd3b3a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see". Backported from #70885.
396 lines
13 KiB
C++
396 lines
13 KiB
C++
/**************************************************************************/
|
|
/* image_compress_cvtt.cpp */
|
|
/**************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/**************************************************************************/
|
|
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
|
|
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/**************************************************************************/
|
|
|
|
#include "image_compress_cvtt.h"
|
|
|
|
#include "core/os/os.h"
|
|
#include "core/os/thread.h"
|
|
#include "core/print_string.h"
|
|
#include "core/safe_refcount.h"
|
|
|
|
#include <ConvectionKernels.h>
|
|
|
|
struct CVTTCompressionJobParams {
|
|
bool is_hdr;
|
|
bool is_signed;
|
|
int bytes_per_pixel;
|
|
|
|
cvtt::Options options;
|
|
};
|
|
|
|
struct CVTTCompressionRowTask {
|
|
const uint8_t *in_mm_bytes;
|
|
uint8_t *out_mm_bytes;
|
|
int y_start;
|
|
int width;
|
|
int height;
|
|
};
|
|
|
|
struct CVTTCompressionJobQueue {
|
|
CVTTCompressionJobParams job_params;
|
|
const CVTTCompressionRowTask *job_tasks;
|
|
uint32_t num_tasks;
|
|
SafeNumeric<uint32_t> current_task;
|
|
};
|
|
|
|
static void _digest_row_task(const CVTTCompressionJobParams &p_job_params, const CVTTCompressionRowTask &p_row_task) {
|
|
const uint8_t *in_bytes = p_row_task.in_mm_bytes;
|
|
uint8_t *out_bytes = p_row_task.out_mm_bytes;
|
|
int w = p_row_task.width;
|
|
int h = p_row_task.height;
|
|
|
|
int y_start = p_row_task.y_start;
|
|
int y_end = y_start + 4;
|
|
|
|
int bytes_per_pixel = p_job_params.bytes_per_pixel;
|
|
bool is_hdr = p_job_params.is_hdr;
|
|
bool is_signed = p_job_params.is_signed;
|
|
|
|
cvtt::PixelBlockU8 input_blocks_ldr[cvtt::NumParallelBlocks];
|
|
cvtt::PixelBlockF16 input_blocks_hdr[cvtt::NumParallelBlocks];
|
|
|
|
for (int x_start = 0; x_start < w; x_start += 4 * cvtt::NumParallelBlocks) {
|
|
int x_end = x_start + 4 * cvtt::NumParallelBlocks;
|
|
|
|
for (int y = y_start; y < y_end; y++) {
|
|
int first_input_element = (y - y_start) * 4;
|
|
const uint8_t *row_start;
|
|
if (y >= h) {
|
|
row_start = in_bytes + (h - 1) * (w * bytes_per_pixel);
|
|
} else {
|
|
row_start = in_bytes + y * (w * bytes_per_pixel);
|
|
}
|
|
|
|
for (int x = x_start; x < x_end; x++) {
|
|
const uint8_t *pixel_start;
|
|
if (x >= w) {
|
|
pixel_start = row_start + (w - 1) * bytes_per_pixel;
|
|
} else {
|
|
pixel_start = row_start + x * bytes_per_pixel;
|
|
}
|
|
|
|
int block_index = (x - x_start) / 4;
|
|
int block_element = (x - x_start) % 4 + first_input_element;
|
|
if (is_hdr) {
|
|
memcpy(input_blocks_hdr[block_index].m_pixels[block_element], pixel_start, bytes_per_pixel);
|
|
input_blocks_hdr[block_index].m_pixels[block_element][3] = 0x3c00; // 1.0 (unused)
|
|
} else {
|
|
memcpy(input_blocks_ldr[block_index].m_pixels[block_element], pixel_start, bytes_per_pixel);
|
|
}
|
|
}
|
|
}
|
|
|
|
uint8_t output_blocks[16 * cvtt::NumParallelBlocks];
|
|
|
|
if (is_hdr) {
|
|
if (is_signed) {
|
|
cvtt::Kernels::EncodeBC6HS(output_blocks, input_blocks_hdr, p_job_params.options);
|
|
} else {
|
|
cvtt::Kernels::EncodeBC6HU(output_blocks, input_blocks_hdr, p_job_params.options);
|
|
}
|
|
} else {
|
|
cvtt::Kernels::EncodeBC7(output_blocks, input_blocks_ldr, p_job_params.options);
|
|
}
|
|
|
|
unsigned int num_real_blocks = ((w - x_start) + 3) / 4;
|
|
if (num_real_blocks > cvtt::NumParallelBlocks) {
|
|
num_real_blocks = cvtt::NumParallelBlocks;
|
|
}
|
|
|
|
memcpy(out_bytes, output_blocks, 16 * num_real_blocks);
|
|
out_bytes += 16 * num_real_blocks;
|
|
}
|
|
}
|
|
|
|
static void _digest_job_queue(void *p_job_queue) {
|
|
CVTTCompressionJobQueue *job_queue = static_cast<CVTTCompressionJobQueue *>(p_job_queue);
|
|
|
|
for (uint32_t next_task = job_queue->current_task.increment(); next_task <= job_queue->num_tasks; next_task = job_queue->current_task.increment()) {
|
|
_digest_row_task(job_queue->job_params, job_queue->job_tasks[next_task - 1]);
|
|
}
|
|
}
|
|
|
|
void image_compress_cvtt(Image *p_image, float p_lossy_quality, Image::CompressSource p_source) {
|
|
if (p_image->get_format() >= Image::FORMAT_BPTC_RGBA) {
|
|
return; //do not compress, already compressed
|
|
}
|
|
|
|
int w = p_image->get_width();
|
|
int h = p_image->get_height();
|
|
|
|
bool is_ldr = (p_image->get_format() <= Image::FORMAT_RGBA8);
|
|
bool is_hdr = (p_image->get_format() >= Image::FORMAT_RH) && (p_image->get_format() <= Image::FORMAT_RGBE9995);
|
|
|
|
if (!is_ldr && !is_hdr) {
|
|
return; // Not a usable source format
|
|
}
|
|
|
|
cvtt::Options options;
|
|
uint32_t flags = cvtt::Flags::Fastest;
|
|
|
|
if (p_lossy_quality > 0.85) {
|
|
flags = cvtt::Flags::Ultra;
|
|
} else if (p_lossy_quality > 0.75) {
|
|
flags = cvtt::Flags::Better;
|
|
} else if (p_lossy_quality > 0.55) {
|
|
flags = cvtt::Flags::Default;
|
|
} else if (p_lossy_quality > 0.35) {
|
|
flags = cvtt::Flags::Fast;
|
|
} else if (p_lossy_quality > 0.15) {
|
|
flags = cvtt::Flags::Faster;
|
|
}
|
|
|
|
flags |= cvtt::Flags::BC7_RespectPunchThrough;
|
|
|
|
if (p_source == Image::COMPRESS_SOURCE_NORMAL) {
|
|
flags |= cvtt::Flags::Uniform;
|
|
}
|
|
options.flags = flags;
|
|
|
|
Image::Format target_format = Image::FORMAT_BPTC_RGBA;
|
|
|
|
bool is_signed = false;
|
|
if (is_hdr) {
|
|
if (p_image->get_format() != Image::FORMAT_RGBH) {
|
|
p_image->convert(Image::FORMAT_RGBH);
|
|
}
|
|
|
|
PoolVector<uint8_t>::Read rb = p_image->get_data().read();
|
|
|
|
const uint16_t *source_data = reinterpret_cast<const uint16_t *>(&rb[0]);
|
|
int pixel_element_count = w * h * 3;
|
|
for (int i = 0; i < pixel_element_count; i++) {
|
|
if ((source_data[i] & 0x8000) != 0 && (source_data[i] & 0x7fff) != 0) {
|
|
is_signed = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
target_format = is_signed ? Image::FORMAT_BPTC_RGBF : Image::FORMAT_BPTC_RGBFU;
|
|
} else {
|
|
p_image->convert(Image::FORMAT_RGBA8); //still uses RGBA to convert
|
|
}
|
|
|
|
PoolVector<uint8_t>::Read rb = p_image->get_data().read();
|
|
|
|
PoolVector<uint8_t> data;
|
|
int target_size = Image::get_image_data_size(w, h, target_format, p_image->has_mipmaps());
|
|
int mm_count = p_image->has_mipmaps() ? Image::get_image_required_mipmaps(w, h, target_format) : 0;
|
|
data.resize(target_size);
|
|
int shift = Image::get_format_pixel_rshift(target_format);
|
|
|
|
PoolVector<uint8_t>::Write wb = data.write();
|
|
|
|
int dst_ofs = 0;
|
|
|
|
CVTTCompressionJobQueue job_queue;
|
|
job_queue.job_params.is_hdr = is_hdr;
|
|
job_queue.job_params.is_signed = is_signed;
|
|
job_queue.job_params.options = options;
|
|
job_queue.job_params.bytes_per_pixel = is_hdr ? 6 : 4;
|
|
|
|
#ifdef NO_THREADS
|
|
int num_job_threads = 0;
|
|
#else
|
|
int num_job_threads = OS::get_singleton()->can_use_threads() ? (OS::get_singleton()->get_processor_count() - 1) : 0;
|
|
#endif
|
|
|
|
PoolVector<CVTTCompressionRowTask> tasks;
|
|
|
|
for (int i = 0; i <= mm_count; i++) {
|
|
int bw = w % 4 != 0 ? w + (4 - w % 4) : w;
|
|
int bh = h % 4 != 0 ? h + (4 - h % 4) : h;
|
|
|
|
int src_ofs = p_image->get_mipmap_offset(i);
|
|
|
|
const uint8_t *in_bytes = &rb[src_ofs];
|
|
uint8_t *out_bytes = &wb[dst_ofs];
|
|
|
|
for (int y_start = 0; y_start < h; y_start += 4) {
|
|
CVTTCompressionRowTask row_task;
|
|
row_task.width = w;
|
|
row_task.height = h;
|
|
row_task.y_start = y_start;
|
|
row_task.in_mm_bytes = in_bytes;
|
|
row_task.out_mm_bytes = out_bytes;
|
|
|
|
if (num_job_threads > 0) {
|
|
tasks.push_back(row_task);
|
|
} else {
|
|
_digest_row_task(job_queue.job_params, row_task);
|
|
}
|
|
|
|
out_bytes += 16 * (bw / 4);
|
|
}
|
|
|
|
dst_ofs += (MAX(4, bw) * MAX(4, bh)) >> shift;
|
|
w = MAX(w / 2, 1);
|
|
h = MAX(h / 2, 1);
|
|
}
|
|
|
|
if (num_job_threads > 0) {
|
|
PoolVector<Thread *> threads;
|
|
threads.resize(num_job_threads);
|
|
|
|
PoolVector<Thread *>::Write threads_wb = threads.write();
|
|
|
|
PoolVector<CVTTCompressionRowTask>::Read tasks_rb = tasks.read();
|
|
|
|
job_queue.job_tasks = &tasks_rb[0];
|
|
job_queue.current_task.set(0);
|
|
job_queue.num_tasks = static_cast<uint32_t>(tasks.size());
|
|
|
|
for (int i = 0; i < num_job_threads; i++) {
|
|
threads_wb[i] = memnew(Thread);
|
|
threads_wb[i]->start(_digest_job_queue, &job_queue);
|
|
}
|
|
_digest_job_queue(&job_queue);
|
|
|
|
for (int i = 0; i < num_job_threads; i++) {
|
|
threads_wb[i]->wait_to_finish();
|
|
memdelete(threads_wb[i]);
|
|
}
|
|
}
|
|
|
|
p_image->create(p_image->get_width(), p_image->get_height(), p_image->has_mipmaps(), target_format, data);
|
|
}
|
|
|
|
void image_decompress_cvtt(Image *p_image) {
|
|
Image::Format target_format;
|
|
bool is_signed = false;
|
|
bool is_hdr = false;
|
|
|
|
Image::Format input_format = p_image->get_format();
|
|
|
|
switch (input_format) {
|
|
case Image::FORMAT_BPTC_RGBA:
|
|
target_format = Image::FORMAT_RGBA8;
|
|
break;
|
|
case Image::FORMAT_BPTC_RGBF:
|
|
case Image::FORMAT_BPTC_RGBFU:
|
|
target_format = Image::FORMAT_RGBH;
|
|
is_signed = (input_format == Image::FORMAT_BPTC_RGBF);
|
|
is_hdr = true;
|
|
break;
|
|
default:
|
|
return; // Invalid input format
|
|
};
|
|
|
|
int w = p_image->get_width();
|
|
int h = p_image->get_height();
|
|
|
|
PoolVector<uint8_t>::Read rb = p_image->get_data().read();
|
|
|
|
PoolVector<uint8_t> data;
|
|
int target_size = Image::get_image_data_size(w, h, target_format, p_image->has_mipmaps());
|
|
int mm_count = p_image->get_mipmap_count();
|
|
data.resize(target_size);
|
|
|
|
PoolVector<uint8_t>::Write wb = data.write();
|
|
|
|
int bytes_per_pixel = is_hdr ? 6 : 4;
|
|
|
|
int dst_ofs = 0;
|
|
|
|
for (int i = 0; i <= mm_count; i++) {
|
|
int src_ofs = p_image->get_mipmap_offset(i);
|
|
|
|
const uint8_t *in_bytes = &rb[src_ofs];
|
|
uint8_t *out_bytes = &wb[dst_ofs];
|
|
|
|
cvtt::PixelBlockU8 output_blocks_ldr[cvtt::NumParallelBlocks];
|
|
cvtt::PixelBlockF16 output_blocks_hdr[cvtt::NumParallelBlocks];
|
|
|
|
for (int y_start = 0; y_start < h; y_start += 4) {
|
|
int y_end = y_start + 4;
|
|
|
|
for (int x_start = 0; x_start < w; x_start += 4 * cvtt::NumParallelBlocks) {
|
|
int x_end = x_start + 4 * cvtt::NumParallelBlocks;
|
|
|
|
uint8_t input_blocks[16 * cvtt::NumParallelBlocks];
|
|
memset(input_blocks, 0, sizeof(input_blocks));
|
|
|
|
unsigned int num_real_blocks = ((w - x_start) + 3) / 4;
|
|
if (num_real_blocks > cvtt::NumParallelBlocks) {
|
|
num_real_blocks = cvtt::NumParallelBlocks;
|
|
}
|
|
|
|
memcpy(input_blocks, in_bytes, 16 * num_real_blocks);
|
|
in_bytes += 16 * num_real_blocks;
|
|
|
|
if (is_hdr) {
|
|
if (is_signed) {
|
|
cvtt::Kernels::DecodeBC6HS(output_blocks_hdr, input_blocks);
|
|
} else {
|
|
cvtt::Kernels::DecodeBC6HU(output_blocks_hdr, input_blocks);
|
|
}
|
|
} else {
|
|
cvtt::Kernels::DecodeBC7(output_blocks_ldr, input_blocks);
|
|
}
|
|
|
|
for (int y = y_start; y < y_end; y++) {
|
|
int first_input_element = (y - y_start) * 4;
|
|
uint8_t *row_start;
|
|
if (y >= h) {
|
|
row_start = out_bytes + (h - 1) * (w * bytes_per_pixel);
|
|
} else {
|
|
row_start = out_bytes + y * (w * bytes_per_pixel);
|
|
}
|
|
|
|
for (int x = x_start; x < x_end; x++) {
|
|
uint8_t *pixel_start;
|
|
if (x >= w) {
|
|
pixel_start = row_start + (w - 1) * bytes_per_pixel;
|
|
} else {
|
|
pixel_start = row_start + x * bytes_per_pixel;
|
|
}
|
|
|
|
int block_index = (x - x_start) / 4;
|
|
int block_element = (x - x_start) % 4 + first_input_element;
|
|
if (is_hdr) {
|
|
memcpy(pixel_start, output_blocks_hdr[block_index].m_pixels[block_element], bytes_per_pixel);
|
|
} else {
|
|
memcpy(pixel_start, output_blocks_ldr[block_index].m_pixels[block_element], bytes_per_pixel);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
dst_ofs += w * h * bytes_per_pixel;
|
|
w >>= 1;
|
|
h >>= 1;
|
|
}
|
|
|
|
rb.release();
|
|
wb.release();
|
|
|
|
p_image->create(p_image->get_width(), p_image->get_height(), p_image->has_mipmaps(), target_format, data);
|
|
}
|