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Diffstat (limited to 'src/rend2/tr_image_jpg.c')
| -rw-r--r-- | src/rend2/tr_image_jpg.c | 441 |
1 files changed, 0 insertions, 441 deletions
diff --git a/src/rend2/tr_image_jpg.c b/src/rend2/tr_image_jpg.c deleted file mode 100644 index 494b4a28..00000000 --- a/src/rend2/tr_image_jpg.c +++ /dev/null @@ -1,441 +0,0 @@ -/* -=========================================================================== -Copyright (C) 1999-2005 Id Software, Inc. - -This file is part of Quake III Arena source code. - -Quake III Arena source code is free software; you can redistribute it -and/or modify it under the terms of the GNU General Public License as -published by the Free Software Foundation; either version 2 of the License, -or (at your option) any later version. - -Quake III Arena source code is distributed in the hope that it will be -useful, but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with Quake III Arena source code; if not, write to the Free Software -Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -=========================================================================== -*/ - -#include "../qcommon/q_shared.h" -#include "../qcommon/qfiles.h" -#include "../qcommon/qcommon.h" -#include "../renderer/tr_public.h" -extern refimport_t ri; - -/* - * Include file for users of JPEG library. - * You will need to have included system headers that define at least - * the typedefs FILE and size_t before you can include jpeglib.h. - * (stdio.h is sufficient on ANSI-conforming systems.) - * You may also wish to include "jerror.h". - */ - -#ifdef USE_INTERNAL_JPEG -# define JPEG_INTERNALS -#endif - -#include <jpeglib.h> - -#ifndef USE_INTERNAL_JPEG -# if JPEG_LIB_VERSION < 80 -# error Need system libjpeg >= 80 -# endif -#endif - -static void R_JPGErrorExit(j_common_ptr cinfo) -{ - char buffer[JMSG_LENGTH_MAX]; - - (*cinfo->err->format_message) (cinfo, buffer); - - /* Let the memory manager delete any temp files before we die */ - jpeg_destroy(cinfo); - - ri.Error(ERR_FATAL, "%s", buffer); -} - -static void R_JPGOutputMessage(j_common_ptr cinfo) -{ - char buffer[JMSG_LENGTH_MAX]; - - /* Create the message */ - (*cinfo->err->format_message) (cinfo, buffer); - - /* Send it to stderr, adding a newline */ - ri.Printf(PRINT_ALL, "%s\n", buffer); -} - -void R_LoadJPG(const char *filename, unsigned char **pic, int *width, int *height) -{ - /* This struct contains the JPEG decompression parameters and pointers to - * working space (which is allocated as needed by the JPEG library). - */ - struct jpeg_decompress_struct cinfo = {NULL}; - /* We use our private extension JPEG error handler. - * Note that this struct must live as long as the main JPEG parameter - * struct, to avoid dangling-pointer problems. - */ - /* This struct represents a JPEG error handler. It is declared separately - * because applications often want to supply a specialized error handler - * (see the second half of this file for an example). But here we just - * take the easy way out and use the standard error handler, which will - * print a message on stderr and call exit() if compression fails. - * Note that this struct must live as long as the main JPEG parameter - * struct, to avoid dangling-pointer problems. - */ - struct jpeg_error_mgr jerr; - /* More stuff */ - JSAMPARRAY buffer; /* Output row buffer */ - unsigned int row_stride; /* physical row width in output buffer */ - unsigned int pixelcount, memcount; - unsigned int sindex, dindex; - byte *out; - int len; - union { - byte *b; - void *v; - } fbuffer; - byte *buf; - - /* In this example we want to open the input file before doing anything else, - * so that the setjmp() error recovery below can assume the file is open. - * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that - * requires it in order to read binary files. - */ - - len = ri.FS_ReadFile ( ( char * ) filename, &fbuffer.v); - if (!fbuffer.b || len < 0) { - return; - } - - /* Step 1: allocate and initialize JPEG decompression object */ - - /* We have to set up the error handler first, in case the initialization - * step fails. (Unlikely, but it could happen if you are out of memory.) - * This routine fills in the contents of struct jerr, and returns jerr's - * address which we place into the link field in cinfo. - */ - cinfo.err = jpeg_std_error(&jerr); - cinfo.err->error_exit = R_JPGErrorExit; - cinfo.err->output_message = R_JPGOutputMessage; - - /* Now we can initialize the JPEG decompression object. */ - jpeg_create_decompress(&cinfo); - - /* Step 2: specify data source (eg, a file) */ - - jpeg_mem_src(&cinfo, fbuffer.b, len); - - /* Step 3: read file parameters with jpeg_read_header() */ - - (void) jpeg_read_header(&cinfo, TRUE); - /* We can ignore the return value from jpeg_read_header since - * (a) suspension is not possible with the stdio data source, and - * (b) we passed TRUE to reject a tables-only JPEG file as an error. - * See libjpeg.doc for more info. - */ - - /* Step 4: set parameters for decompression */ - - /* - * Make sure it always converts images to RGB color space. This will - * automatically convert 8-bit greyscale images to RGB as well. - */ - cinfo.out_color_space = JCS_RGB; - - /* Step 5: Start decompressor */ - - (void) jpeg_start_decompress(&cinfo); - /* We can ignore the return value since suspension is not possible - * with the stdio data source. - */ - - /* We may need to do some setup of our own at this point before reading - * the data. After jpeg_start_decompress() we have the correct scaled - * output image dimensions available, as well as the output colormap - * if we asked for color quantization. - * In this example, we need to make an output work buffer of the right size. - */ - /* JSAMPLEs per row in output buffer */ - - pixelcount = cinfo.output_width * cinfo.output_height; - - if(!cinfo.output_width || !cinfo.output_height - || ((pixelcount * 4) / cinfo.output_width) / 4 != cinfo.output_height - || pixelcount > 0x1FFFFFFF || cinfo.output_components != 3 - ) - { - // Free the memory to make sure we don't leak memory - ri.FS_FreeFile (fbuffer.v); - jpeg_destroy_decompress(&cinfo); - - ri.Error(ERR_DROP, "LoadJPG: %s has an invalid image format: %dx%d*4=%d, components: %d", filename, - cinfo.output_width, cinfo.output_height, pixelcount * 4, cinfo.output_components); - } - - memcount = pixelcount * 4; - row_stride = cinfo.output_width * cinfo.output_components; - - out = ri.Malloc(memcount); - - *width = cinfo.output_width; - *height = cinfo.output_height; - - /* Step 6: while (scan lines remain to be read) */ - /* jpeg_read_scanlines(...); */ - - /* Here we use the library's state variable cinfo.output_scanline as the - * loop counter, so that we don't have to keep track ourselves. - */ - while (cinfo.output_scanline < cinfo.output_height) { - /* jpeg_read_scanlines expects an array of pointers to scanlines. - * Here the array is only one element long, but you could ask for - * more than one scanline at a time if that's more convenient. - */ - buf = ((out+(row_stride*cinfo.output_scanline))); - buffer = &buf; - (void) jpeg_read_scanlines(&cinfo, buffer, 1); - } - - buf = out; - - // Expand from RGB to RGBA - sindex = pixelcount * cinfo.output_components; - dindex = memcount; - - do - { - buf[--dindex] = 255; - buf[--dindex] = buf[--sindex]; - buf[--dindex] = buf[--sindex]; - buf[--dindex] = buf[--sindex]; - } while(sindex); - - *pic = out; - - /* Step 7: Finish decompression */ - - jpeg_finish_decompress(&cinfo); - /* We can ignore the return value since suspension is not possible - * with the stdio data source. - */ - - /* Step 8: Release JPEG decompression object */ - - /* This is an important step since it will release a good deal of memory. */ - jpeg_destroy_decompress(&cinfo); - - /* After finish_decompress, we can close the input file. - * Here we postpone it until after no more JPEG errors are possible, - * so as to simplify the setjmp error logic above. (Actually, I don't - * think that jpeg_destroy can do an error exit, but why assume anything...) - */ - ri.FS_FreeFile (fbuffer.v); - - /* At this point you may want to check to see whether any corrupt-data - * warnings occurred (test whether jerr.pub.num_warnings is nonzero). - */ - - /* And we're done! */ -} - - -/* Expanded data destination object for stdio output */ - -typedef struct { - struct jpeg_destination_mgr pub; /* public fields */ - - byte* outfile; /* target stream */ - int size; -} my_destination_mgr; - -typedef my_destination_mgr * my_dest_ptr; - - -/* - * Initialize destination --- called by jpeg_start_compress - * before any data is actually written. - */ - -static void -init_destination (j_compress_ptr cinfo) -{ - my_dest_ptr dest = (my_dest_ptr) cinfo->dest; - - dest->pub.next_output_byte = dest->outfile; - dest->pub.free_in_buffer = dest->size; -} - - -/* - * Empty the output buffer --- called whenever buffer fills up. - * - * In typical applications, this should write the entire output buffer - * (ignoring the current state of next_output_byte & free_in_buffer), - * reset the pointer & count to the start of the buffer, and return TRUE - * indicating that the buffer has been dumped. - * - * In applications that need to be able to suspend compression due to output - * overrun, a FALSE return indicates that the buffer cannot be emptied now. - * In this situation, the compressor will return to its caller (possibly with - * an indication that it has not accepted all the supplied scanlines). The - * application should resume compression after it has made more room in the - * output buffer. Note that there are substantial restrictions on the use of - * suspension --- see the documentation. - * - * When suspending, the compressor will back up to a convenient restart point - * (typically the start of the current MCU). next_output_byte & free_in_buffer - * indicate where the restart point will be if the current call returns FALSE. - * Data beyond this point will be regenerated after resumption, so do not - * write it out when emptying the buffer externally. - */ - -static boolean -empty_output_buffer (j_compress_ptr cinfo) -{ - my_dest_ptr dest = (my_dest_ptr) cinfo->dest; - - jpeg_destroy_compress(cinfo); - - // Make crash fatal or we would probably leak memory. - ri.Error(ERR_FATAL, "Output buffer for encoded JPEG image has insufficient size of %d bytes", - dest->size); - - return FALSE; -} - -/* - * Terminate destination --- called by jpeg_finish_compress - * after all data has been written. Usually needs to flush buffer. - * - * NB: *not* called by jpeg_abort or jpeg_destroy; surrounding - * application must deal with any cleanup that should happen even - * for error exit. - */ - -static void term_destination(j_compress_ptr cinfo) -{ -} - - -/* - * Prepare for output to a stdio stream. - * The caller must have already opened the stream, and is responsible - * for closing it after finishing compression. - */ - -static void -jpegDest (j_compress_ptr cinfo, byte* outfile, int size) -{ - my_dest_ptr dest; - - /* The destination object is made permanent so that multiple JPEG images - * can be written to the same file without re-executing jpeg_stdio_dest. - * This makes it dangerous to use this manager and a different destination - * manager serially with the same JPEG object, because their private object - * sizes may be different. Caveat programmer. - */ - if (cinfo->dest == NULL) { /* first time for this JPEG object? */ - cinfo->dest = (struct jpeg_destination_mgr *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - sizeof(my_destination_mgr)); - } - - dest = (my_dest_ptr) cinfo->dest; - dest->pub.init_destination = init_destination; - dest->pub.empty_output_buffer = empty_output_buffer; - dest->pub.term_destination = term_destination; - dest->outfile = outfile; - dest->size = size; -} - -/* -================= -SaveJPGToBuffer - -Encodes JPEG from image in image_buffer and writes to buffer. -Expects RGB input data -================= -*/ -size_t RE_SaveJPGToBuffer(byte *buffer, size_t bufSize, int quality, - int image_width, int image_height, byte *image_buffer, int padding) -{ - struct jpeg_compress_struct cinfo; - struct jpeg_error_mgr jerr; - JSAMPROW row_pointer[1]; /* pointer to JSAMPLE row[s] */ - my_dest_ptr dest; - int row_stride; /* physical row width in image buffer */ - size_t outcount; - - /* Step 1: allocate and initialize JPEG compression object */ - cinfo.err = jpeg_std_error(&jerr); - cinfo.err->error_exit = R_JPGErrorExit; - cinfo.err->output_message = R_JPGOutputMessage; - - /* Now we can initialize the JPEG compression object. */ - jpeg_create_compress(&cinfo); - - /* Step 2: specify data destination (eg, a file) */ - /* Note: steps 2 and 3 can be done in either order. */ - jpegDest(&cinfo, buffer, bufSize); - - /* Step 3: set parameters for compression */ - cinfo.image_width = image_width; /* image width and height, in pixels */ - cinfo.image_height = image_height; - cinfo.input_components = 3; /* # of color components per pixel */ - cinfo.in_color_space = JCS_RGB; /* colorspace of input image */ - - jpeg_set_defaults(&cinfo); - jpeg_set_quality(&cinfo, quality, TRUE /* limit to baseline-JPEG values */); - /* If quality is set high, disable chroma subsampling */ - if (quality >= 85) { - cinfo.comp_info[0].h_samp_factor = 1; - cinfo.comp_info[0].v_samp_factor = 1; - } - - /* Step 4: Start compressor */ - jpeg_start_compress(&cinfo, TRUE); - - /* Step 5: while (scan lines remain to be written) */ - /* jpeg_write_scanlines(...); */ - row_stride = image_width * cinfo.input_components + padding; /* JSAMPLEs per row in image_buffer */ - - while (cinfo.next_scanline < cinfo.image_height) { - /* jpeg_write_scanlines expects an array of pointers to scanlines. - * Here the array is only one element long, but you could pass - * more than one scanline at a time if that's more convenient. - */ - row_pointer[0] = &image_buffer[((cinfo.image_height-1)*row_stride)-cinfo.next_scanline * row_stride]; - (void) jpeg_write_scanlines(&cinfo, row_pointer, 1); - } - - /* Step 6: Finish compression */ - jpeg_finish_compress(&cinfo); - - dest = (my_dest_ptr) cinfo.dest; - outcount = dest->size - dest->pub.free_in_buffer; - - /* Step 7: release JPEG compression object */ - jpeg_destroy_compress(&cinfo); - - /* And we're done! */ - return outcount; -} - -void RE_SaveJPG(char * filename, int quality, int image_width, int image_height, byte *image_buffer, int padding) -{ - byte *out; - size_t bufSize; - - bufSize = image_width * image_height * 3; - out = ri.Hunk_AllocateTempMemory(bufSize); - - bufSize = RE_SaveJPGToBuffer(out, bufSize, quality, image_width, image_height, image_buffer, padding); - ri.FS_WriteFile(filename, out, bufSize); - - ri.Hunk_FreeTempMemory(out); -} |