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Add BARCODE_MEMORY_FILE to symbol->output_options to allow

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outputting to in-memory buffer `symbol->memfile` instead of to
  file `symbol->outfile`, ticket #301
Add "README.clang-tidy" and ".clang-tidy" options file
Suppress some warnings
This commit is contained in:
gitlost 2023-12-27 19:20:19 +00:00
parent 070162214b
commit 98f86727cc
59 changed files with 2407 additions and 1262 deletions
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77
backend/gif.c
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@ -32,18 +32,15 @@
#include <errno.h>
#include <stdio.h>
#ifdef _MSC_VER
#include <io.h>
#include <fcntl.h>
#endif
#include "common.h"
#include "filemem.h"
#include "output.h"
/* Limit initial LZW buffer size to this in expectation that compressed data will fit for typical scalings */
#define GIF_LZW_PAGE_SIZE 0x100000 /* Megabyte */
typedef struct s_statestruct {
FILE *file;
struct filemem *fmp;
unsigned char *pOut;
const unsigned char *pIn;
const unsigned char *pInEnd;
@ -65,7 +62,7 @@ static void BufferNextByte(statestruct *pState) {
(pState->OutPosCur)++;
if (pState->fOutPaged && pState->OutPosCur + 2 >= pState->OutLength) {
/* Keep last 256 bytes so `OutByteCountPos` within range */
fwrite(pState->pOut, 1, pState->OutPosCur - 256, pState->file);
fm_write(pState->pOut, 1, pState->OutPosCur - 256, pState->fmp);
memmove(pState->pOut, pState->pOut + pState->OutPosCur - 256, 256);
pState->OutByteCountPos -= pState->OutPosCur - 256;
pState->OutPosCur = 256;
@ -241,6 +238,7 @@ static int gif_lzw(statestruct *pState, int paletteBitSize) {
* Called function to save in gif format
*/
INTERNAL int gif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf) {
struct filemem fm;
unsigned char outbuf[10];
unsigned short usTemp;
unsigned char paletteRGB[10][3];
@ -250,7 +248,6 @@ INTERNAL int gif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
statestruct State;
int transparent_index;
int bgindex = -1, fgindex = -1;
const int output_to_stdout = symbol->output_options & BARCODE_STDOUT;
static const unsigned char RGBUnused[3] = {0,0,0};
unsigned char RGBfg[3];
@ -277,22 +274,14 @@ INTERNAL int gif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
return ZINT_ERROR_MEMORY;
}
State.fmp = &fm;
/* Open output file in binary mode */
if (output_to_stdout) {
#ifdef _MSC_VER
if (-1 == _setmode(_fileno(stdout), _O_BINARY)) {
sprintf(symbol->errtxt, "610: Could not set stdout to binary (%d: %.30s)", errno, strerror(errno));
free(State.pOut);
return ZINT_ERROR_FILE_ACCESS;
}
#endif
State.file = stdout;
} else {
if (!(State.file = out_fopen(symbol->outfile, "wb"))) {
sprintf(symbol->errtxt, "611: Could not open output file (%d: %.30s)", errno, strerror(errno));
free(State.pOut);
return ZINT_ERROR_FILE_ACCESS;
}
if (!fm_open(State.fmp, symbol, "wb")) {
sprintf(symbol->errtxt, "611: Could not open output file (%d: %.30s)", State.fmp->err,
strerror(State.fmp->err));
free(State.pOut);
return ZINT_ERROR_FILE_ACCESS;
}
/*
@ -310,7 +299,6 @@ INTERNAL int gif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
* 'K': black
* '0' and '1' may be identical to one of the other values
*/
paletteCount = 0;
memset(State.map, 0, sizeof(State.map));
if (symbol->symbology == BARCODE_ULTRA) {
static const unsigned char ultra_chars[8] = { 'W', 'C', 'B', 'M', 'R', 'Y', 'G', 'K' };
@ -375,7 +363,7 @@ INTERNAL int gif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
if (transparent_index != -1)
outbuf[4] = '9';
fwrite(outbuf, 1, 6, State.file);
fm_write(outbuf, 1, 6, State.fmp);
/* Screen Descriptor (7) */
/* Screen Width */
usTemp = (unsigned short) symbol->bitmap_width;
@ -402,12 +390,12 @@ INTERNAL int gif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
outbuf[5] = bgindex == -1 ? 0 : bgindex;
/* Byte 7 must be 0x00 */
outbuf[6] = 0x00;
fwrite(outbuf, 1, 7, State.file);
fm_write(outbuf, 1, 7, State.fmp);
/* Global Color Table (paletteSize*3) */
fwrite(paletteRGB, 1, 3*paletteCount, State.file);
fm_write(paletteRGB, 1, 3*paletteCount, State.fmp);
/* add unused palette items to fill palette size */
for (i = paletteCount; i < paletteSize; i++) {
fwrite(RGBUnused, 1, 3, State.file);
fm_write(RGBUnused, 1, 3, State.fmp);
}
/* Graphic control extension (8) */
@ -435,7 +423,7 @@ INTERNAL int gif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
outbuf[6] = (unsigned char) transparent_index;
/* Block Terminator */
outbuf[7] = 0;
fwrite(outbuf, 1, 8, State.file);
fm_write(outbuf, 1, 8, State.fmp);
}
/* Image Descriptor */
/* Image separator character = ',' */
@ -458,41 +446,32 @@ INTERNAL int gif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
* There is no local color table if its most significant bit is reset.
*/
outbuf[9] = 0x00;
fwrite(outbuf, 1, 10, State.file);
fm_write(outbuf, 1, 10, State.fmp);
/* call lzw encoding */
if (!gif_lzw(&State, paletteBitSize)) {
free(State.pOut);
if (!output_to_stdout) {
(void) fclose(State.file);
}
(void) fm_close(State.fmp, symbol);
strcpy(symbol->errtxt, "613: Insufficient memory for LZW buffer");
return ZINT_ERROR_MEMORY;
}
fwrite((const char *) State.pOut, 1, State.OutPosCur, State.file);
fm_write((const char *) State.pOut, 1, State.OutPosCur, State.fmp);
free(State.pOut);
/* GIF terminator */
fputc('\x3b', State.file);
fm_putc('\x3b', State.fmp);
if (ferror(State.file)) {
sprintf(symbol->errtxt, "615: Incomplete write to output (%d: %.30s)", errno, strerror(errno));
if (!output_to_stdout) {
(void) fclose(State.file);
}
if (fm_error(State.fmp)) {
sprintf(symbol->errtxt, "615: Incomplete write to output (%d: %.30s)", State.fmp->err,
strerror(State.fmp->err));
(void) fm_close(State.fmp, symbol);
return ZINT_ERROR_FILE_WRITE;
}
if (output_to_stdout) {
if (fflush(State.file) != 0) {
sprintf(symbol->errtxt, "616: Incomplete flush to output (%d: %.30s)", errno, strerror(errno));
return ZINT_ERROR_FILE_WRITE;
}
} else {
if (fclose(State.file) != 0) {
sprintf(symbol->errtxt, "617: Failure on closing output file (%d: %.30s)", errno, strerror(errno));
return ZINT_ERROR_FILE_WRITE;
}
if (!fm_close(State.fmp, symbol)) {
sprintf(symbol->errtxt, "617: Failure on closing output file (%d: %.30s)", State.fmp->err,
strerror(State.fmp->err));
return ZINT_ERROR_FILE_WRITE;
}
return 0;