Some tweaks

This commit is contained in:
Ray 2020-01-28 16:40:12 +01:00
parent 98a7d35bab
commit c715cae18d
3 changed files with 15 additions and 24 deletions

31
src/external/rgif.h vendored
View File

@ -117,16 +117,6 @@ RGIFDEF bool GifEnd();
#include <stdio.h> // Required for: FILE, fopen(), fclose()
#include <string.h> // Required for: memcpy()
// Define these macros to hook into a custom memory allocator.
// RGIF_TEMP_MALLOC and RGIF_TEMP_FREE will only be called in stack fashion - frees in the reverse order of mallocs
// and any temp memory allocated by a function will be freed before it exits.
#if !defined(RGIF_TEMP_MALLOC)
#include <stdlib.h>
#define RGIF_TEMP_MALLOC malloc
#define RGIF_TEMP_FREE free
#endif
// Check if custom malloc/free functions defined, if not, using standard ones
// RGIF_MALLOC and RGIF_FREE are used only by GifBegin and GifEnd respectively,
// to allocate a buffer the size of the image, which is used to find changed pixels for delta-encoding.
@ -185,7 +175,7 @@ typedef struct GifLzwNode {
//----------------------------------------------------------------------------------
const int gifTransparentIndex = 0; // Transparent color index
static FILE *gifFile;
static FILE *gifFile = NULL;
unsigned char *gifFrame;
//----------------------------------------------------------------------------------
@ -201,9 +191,10 @@ static void GifMakePalette(const unsigned char *lastFrame, const unsigned char *
static void GifDitherImage(const unsigned char *lastFrame, const unsigned char *nextFrame, unsigned char *outFrame, unsigned int width, unsigned int height, GifPalette *pPal);
static void GifThresholdImage(const unsigned char *lastFrame, const unsigned char *nextFrame, unsigned char *outFrame, unsigned int width, unsigned int height, GifPalette *pPal);
static void GifWriteBit(GifBitStatus *stat, unsigned int bit);
static void GifWriteChunk(FILE *f, GifBitStatus *stat);
static void GifWritePalette(FILE *f, const GifPalette *pPal);
static void GifWriteCode(FILE *f, GifBitStatus *stat, unsigned int code, unsigned int length);
static void GifWritePalette(const GifPalette *pPal, FILE *f);
static void GifWriteLzwImage(FILE *f, unsigned char *image, unsigned int left, unsigned int top, unsigned int width, unsigned int height, unsigned int delay, GifPalette *pPal);
//----------------------------------------------------------------------------------
@ -591,7 +582,7 @@ static void GifMakePalette(const unsigned char *lastFrame, const unsigned char *
// SplitPalette is destructive (it sorts the pixels by color) so
// we must create a copy of the image for it to destroy
int imageSize = width*height*4*sizeof(unsigned char);
unsigned char *destroyableImage = (unsigned char*)RGIF_TEMP_MALLOC(imageSize);
unsigned char *destroyableImage = (unsigned char*)RGIF_MALLOC(imageSize);
memcpy(destroyableImage, nextFrame, imageSize);
int numPixels = width*height;
@ -604,7 +595,7 @@ static void GifMakePalette(const unsigned char *lastFrame, const unsigned char *
GifSplitPalette(destroyableImage, numPixels, 1, lastElt, splitElt, splitDist, 1, buildForDither, pPal);
RGIF_TEMP_FREE(destroyableImage);
RGIF_FREE(destroyableImage);
// add the bottom node for the transparency index
pPal->treeSplit[1 << (bitDepth-1)] = 0;
@ -621,7 +612,7 @@ static void GifDitherImage(const unsigned char *lastFrame, const unsigned char *
// quantPixels initially holds color*256 for all pixels
// The extra 8 bits of precision allow for sub-single-color error values
// to be propagated
int *quantPixels = (int*)RGIF_TEMP_MALLOC(sizeof(int)*numPixels*4);
int *quantPixels = (int*)RGIF_MALLOC(sizeof(int)*numPixels*4);
for (int ii=0; ii<numPixels*4; ++ii)
{
@ -719,7 +710,7 @@ static void GifDitherImage(const unsigned char *lastFrame, const unsigned char *
outFrame[ii] = quantPixels[ii];
}
RGIF_TEMP_FREE(quantPixels);
RGIF_FREE(quantPixels);
}
// Picks palette colors for the image using simple thresholding, no dithering
@ -805,7 +796,7 @@ static void GifWriteCode(FILE *f, GifBitStatus *stat, unsigned int code, unsigne
}
// write a 256-color (8-bit) image palette to the file
static void GifWritePalette(const GifPalette *pPal, FILE *f)
static void GifWritePalette(FILE *f, const GifPalette *pPal)
{
fputc(0, f); // first color: transparency
fputc(0, f);
@ -852,14 +843,14 @@ static void GifWriteLzwImage(FILE *f, unsigned char *image, unsigned int left, u
//fputc(0x80, f); // no local color table, but transparency
fputc(0x80 + pPal->bitDepth-1, f); // local color table present, 2 ^ bitDepth entries
GifWritePalette(pPal, f);
GifWritePalette(f, pPal);
const int minCodeSize = pPal->bitDepth;
const unsigned int clearCode = 1 << pPal->bitDepth;
fputc(minCodeSize, f); // min code size 8 bits
GifLzwNode *codetree = (GifLzwNode *)RGIF_TEMP_MALLOC(sizeof(GifLzwNode)*4096);
GifLzwNode *codetree = (GifLzwNode *)RGIF_MALLOC(sizeof(GifLzwNode)*4096);
memset(codetree, 0, sizeof(GifLzwNode)*4096);
int curCode = -1;
@ -933,7 +924,7 @@ static void GifWriteLzwImage(FILE *f, unsigned char *image, unsigned int left, u
fputc(0, f); // image block terminator
RGIF_TEMP_FREE(codetree);
RGIF_FREE(codetree);
}
#endif // RGIF_IMPLEMENTATION

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@ -930,7 +930,7 @@ ModelAnimation *LoadModelAnimations(const char *filename, int *animCount)
unsigned int flags;
} IQMAnim;
FILE *iqmFile;
FILE *iqmFile = NULL;
IQMHeader iqm;
iqmFile = fopen(filename,"rb");
@ -3061,7 +3061,7 @@ static Model LoadIQM(const char *fileName)
Model model = { 0 };
FILE *iqmFile;
FILE *iqmFile = NULL;
IQMHeader iqm;
IQMMesh *imesh;

View File

@ -1729,7 +1729,7 @@ static Wave LoadWAV(const char *fileName)
WAVData wavData;
Wave wave = { 0 };
FILE *wavFile;
FILE *wavFile = NULL;
wavFile = fopen(fileName, "rb");