MrPiglr
9dddce666d
- Forked from Godot Engine 4.7-dev (MIT License) - Rebranded to AeThex Engine with cyan/purple theme - Added AI-powered development assistant module - Integrated Claude API for code completion & error fixing - Custom hexagon logo and branding - Multi-platform CI/CD (Windows, Linux, macOS) - Built Linux editor binary (151MB) - Complete source code with all customizations Tech Stack: - C++ game engine core - AI Module: Claude 3.5 Sonnet integration - Build: SCons, 14K+ source files - License: MIT (Godot) + Custom (AeThex features) Ready for Windows build via GitHub Actions!
297 lines
11 KiB
C
297 lines
11 KiB
C
/*
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* Copyright (C)2009-2025 D. R. Commander. All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of the libjpeg-turbo Project nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/* TurboJPEG API functions that must be compiled for multiple data
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precisions */
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#if BITS_IN_JSAMPLE == 8
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#define _JSAMPLE JSAMPLE
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#define _JSAMPROW JSAMPROW
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#define _buffer buffer
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#define _jinit_read_ppm jinit_read_ppm
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#define _jinit_write_ppm jinit_write_ppm
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#define _jpeg_crop_scanline jpeg_crop_scanline
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#define _jpeg_read_scanlines jpeg_read_scanlines
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#define _jpeg_skip_scanlines jpeg_skip_scanlines
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#define _jpeg_write_scanlines jpeg_write_scanlines
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#elif BITS_IN_JSAMPLE == 12
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#define _JSAMPLE J12SAMPLE
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#define _JSAMPROW J12SAMPROW
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#define _buffer buffer12
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#define _jinit_read_ppm j12init_read_ppm
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#define _jinit_write_ppm j12init_write_ppm
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#define _jpeg_crop_scanline jpeg12_crop_scanline
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#define _jpeg_read_scanlines jpeg12_read_scanlines
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#define _jpeg_skip_scanlines jpeg12_skip_scanlines
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#define _jpeg_write_scanlines jpeg12_write_scanlines
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#elif BITS_IN_JSAMPLE == 16
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#define _JSAMPLE J16SAMPLE
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#define _JSAMPROW J16SAMPROW
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#define _buffer buffer16
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#define _jinit_read_ppm j16init_read_ppm
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#define _jinit_write_ppm j16init_write_ppm
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#define _jpeg_read_scanlines jpeg16_read_scanlines
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#define _jpeg_write_scanlines jpeg16_write_scanlines
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#endif
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#define _GET_NAME(name, suffix) name##suffix
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#define GET_NAME(name, suffix) _GET_NAME(name, suffix)
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#define _GET_STRING(name, suffix) #name #suffix
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#define GET_STRING(name, suffix) _GET_STRING(name, suffix)
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/******************************** Compressor *********************************/
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/* TurboJPEG 3.0+ */
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DLLEXPORT int GET_NAME(tj3Compress, BITS_IN_JSAMPLE)
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(tjhandle handle, const _JSAMPLE *srcBuf, int width, int pitch, int height,
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int pixelFormat, unsigned char **jpegBuf, size_t *jpegSize)
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{
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static const char FUNCTION_NAME[] = GET_STRING(tj3Compress, BITS_IN_JSAMPLE);
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int i, retval = 0;
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boolean alloc = TRUE;
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_JSAMPROW *row_pointer = NULL;
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GET_CINSTANCE(handle)
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if ((this->init & COMPRESS) == 0)
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THROW("Instance has not been initialized for compression");
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if (srcBuf == NULL || width <= 0 || pitch < 0 || height <= 0 ||
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pixelFormat < 0 || pixelFormat >= TJ_NUMPF || jpegBuf == NULL ||
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jpegSize == NULL)
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THROW("Invalid argument");
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if (!this->lossless && this->quality == -1)
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THROW("TJPARAM_QUALITY must be specified");
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if (!this->lossless && this->subsamp == TJSAMP_UNKNOWN)
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THROW("TJPARAM_SUBSAMP must be specified");
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if (pitch == 0) pitch = width * tjPixelSize[pixelFormat];
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if ((row_pointer = (_JSAMPROW *)malloc(sizeof(_JSAMPROW) * height)) == NULL)
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THROW("Memory allocation failure");
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if (setjmp(this->jerr.setjmp_buffer)) {
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/* If we get here, the JPEG code has signaled an error. */
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retval = -1; goto bailout;
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}
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cinfo->image_width = width;
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cinfo->image_height = height;
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cinfo->data_precision = BITS_IN_JSAMPLE;
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#if BITS_IN_JSAMPLE == 8
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if (this->lossless && this->precision >= 2 &&
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this->precision <= BITS_IN_JSAMPLE)
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#else
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if (this->lossless && this->precision >= BITS_IN_JSAMPLE - 3 &&
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this->precision <= BITS_IN_JSAMPLE)
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#endif
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cinfo->data_precision = this->precision;
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setCompDefaults(this, pixelFormat, FALSE);
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if (this->noRealloc) alloc = FALSE;
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jpeg_mem_dest_tj(cinfo, jpegBuf, jpegSize, alloc);
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jpeg_start_compress(cinfo, TRUE);
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if (this->iccBuf != NULL && this->iccSize != 0)
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jpeg_write_icc_profile(cinfo, this->iccBuf, (unsigned int)this->iccSize);
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for (i = 0; i < height; i++) {
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if (this->bottomUp)
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row_pointer[i] = (_JSAMPROW)&srcBuf[(height - i - 1) * (size_t)pitch];
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else
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row_pointer[i] = (_JSAMPROW)&srcBuf[i * (size_t)pitch];
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}
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while (cinfo->next_scanline < cinfo->image_height)
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_jpeg_write_scanlines(cinfo, &row_pointer[cinfo->next_scanline],
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cinfo->image_height - cinfo->next_scanline);
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jpeg_finish_compress(cinfo);
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bailout:
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if (cinfo->global_state > CSTATE_START && alloc)
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(*cinfo->dest->term_destination) (cinfo);
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if (cinfo->global_state > CSTATE_START || retval == -1)
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jpeg_abort_compress(cinfo);
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free(row_pointer);
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if (this->jerr.warning) retval = -1;
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return retval;
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}
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/******************************* Decompressor ********************************/
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/* TurboJPEG 3.0+ */
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DLLEXPORT int GET_NAME(tj3Decompress, BITS_IN_JSAMPLE)
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(tjhandle handle, const unsigned char *jpegBuf, size_t jpegSize,
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_JSAMPLE *dstBuf, int pitch, int pixelFormat)
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{
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static const char FUNCTION_NAME[] =
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GET_STRING(tj3Decompress, BITS_IN_JSAMPLE);
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_JSAMPROW *row_pointer = NULL;
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int croppedHeight, i, retval = 0;
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#if BITS_IN_JSAMPLE != 16
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int scaledWidth;
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#endif
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struct my_progress_mgr progress;
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GET_DINSTANCE(handle);
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if ((this->init & DECOMPRESS) == 0)
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THROW("Instance has not been initialized for decompression");
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if (jpegBuf == NULL || jpegSize <= 0 || dstBuf == NULL || pitch < 0 ||
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pixelFormat < 0 || pixelFormat >= TJ_NUMPF)
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THROW("Invalid argument");
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if (this->scanLimit) {
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memset(&progress, 0, sizeof(struct my_progress_mgr));
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progress.pub.progress_monitor = my_progress_monitor;
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progress.this = this;
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dinfo->progress = &progress.pub;
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} else
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dinfo->progress = NULL;
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dinfo->mem->max_memory_to_use = (long)this->maxMemory * 1048576L;
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if (setjmp(this->jerr.setjmp_buffer)) {
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/* If we get here, the JPEG code has signaled an error. */
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retval = -1; goto bailout;
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}
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if (dinfo->global_state <= DSTATE_INHEADER) {
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jpeg_mem_src_tj(dinfo, jpegBuf, jpegSize);
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jpeg_read_header(dinfo, TRUE);
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}
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setDecompParameters(this);
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if (this->maxPixels &&
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(unsigned long long)this->jpegWidth * this->jpegHeight >
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(unsigned long long)this->maxPixels)
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THROW("Image is too large");
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this->dinfo.out_color_space = pf2cs[pixelFormat];
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#if BITS_IN_JSAMPLE != 16
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scaledWidth = TJSCALED(dinfo->image_width, this->scalingFactor);
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#endif
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dinfo->do_fancy_upsampling = !this->fastUpsample;
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this->dinfo.dct_method = this->fastDCT ? JDCT_FASTEST : JDCT_ISLOW;
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dinfo->scale_num = this->scalingFactor.num;
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dinfo->scale_denom = this->scalingFactor.denom;
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jpeg_start_decompress(dinfo);
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#if BITS_IN_JSAMPLE != 16
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if (this->croppingRegion.x != 0 ||
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(this->croppingRegion.w != 0 && this->croppingRegion.w != scaledWidth)) {
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JDIMENSION crop_x = this->croppingRegion.x;
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JDIMENSION crop_w = this->croppingRegion.w;
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_jpeg_crop_scanline(dinfo, &crop_x, &crop_w);
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if ((int)crop_x != this->croppingRegion.x)
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THROWI("Unexplained mismatch between specified (%d) and\n"
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"actual (%d) cropping region left boundary",
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this->croppingRegion.x, (int)crop_x);
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if ((int)crop_w != this->croppingRegion.w)
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THROWI("Unexplained mismatch between specified (%d) and\n"
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"actual (%d) cropping region width",
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this->croppingRegion.w, (int)crop_w);
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}
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#endif
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if (pitch == 0) pitch = dinfo->output_width * tjPixelSize[pixelFormat];
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croppedHeight = dinfo->output_height;
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#if BITS_IN_JSAMPLE != 16
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if (this->croppingRegion.y != 0 || this->croppingRegion.h != 0)
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croppedHeight = this->croppingRegion.h;
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#endif
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if ((row_pointer =
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(_JSAMPROW *)malloc(sizeof(_JSAMPROW) * croppedHeight)) == NULL)
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THROW("Memory allocation failure");
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if (setjmp(this->jerr.setjmp_buffer)) {
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/* If we get here, the JPEG code has signaled an error. */
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retval = -1; goto bailout;
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}
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for (i = 0; i < (int)croppedHeight; i++) {
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if (this->bottomUp)
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row_pointer[i] = &dstBuf[(croppedHeight - i - 1) * (size_t)pitch];
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else
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row_pointer[i] = &dstBuf[i * (size_t)pitch];
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}
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#if BITS_IN_JSAMPLE != 16
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if (this->croppingRegion.y != 0 || this->croppingRegion.h != 0) {
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if (this->croppingRegion.y != 0) {
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JDIMENSION lines = _jpeg_skip_scanlines(dinfo, this->croppingRegion.y);
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if ((int)lines != this->croppingRegion.y)
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THROWI("Unexplained mismatch between specified (%d) and\n"
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"actual (%d) cropping region upper boundary",
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this->croppingRegion.y, (int)lines);
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}
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while ((int)dinfo->output_scanline <
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this->croppingRegion.y + this->croppingRegion.h)
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_jpeg_read_scanlines(dinfo, &row_pointer[dinfo->output_scanline -
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this->croppingRegion.y],
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this->croppingRegion.y + this->croppingRegion.h -
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dinfo->output_scanline);
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if (this->croppingRegion.y + this->croppingRegion.h !=
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(int)dinfo->output_height) {
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JDIMENSION lines = _jpeg_skip_scanlines(dinfo, dinfo->output_height -
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this->croppingRegion.y -
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this->croppingRegion.h);
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if (lines != dinfo->output_height - this->croppingRegion.y -
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this->croppingRegion.h)
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THROWI("Unexplained mismatch between specified (%d) and\n"
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"actual (%d) cropping region lower boundary",
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this->croppingRegion.y + this->croppingRegion.h,
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(int)(dinfo->output_height - lines));
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}
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} else
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#endif
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{
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while (dinfo->output_scanline < dinfo->output_height)
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_jpeg_read_scanlines(dinfo, &row_pointer[dinfo->output_scanline],
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dinfo->output_height - dinfo->output_scanline);
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}
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jpeg_finish_decompress(dinfo);
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bailout:
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if (dinfo->global_state > DSTATE_START) jpeg_abort_decompress(dinfo);
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free(row_pointer);
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if (this->jerr.warning) retval = -1;
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return retval;
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}
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#undef _JSAMPLE
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#undef _JSAMPROW
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#undef _buffer
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#undef _jinit_read_ppm
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#undef _jinit_write_ppm
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#undef _jpeg_crop_scanline
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#undef _jpeg_read_scanlines
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#undef _jpeg_skip_scanlines
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#undef _jpeg_write_scanlines
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