JCS-Prod/RSE-Texture
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Done textures decoder

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Next step, convert to PNG format
This commit is contained in:
JackCarterSmith 2019-07-04 16:26:38 +02:00
parent 1c12db0eae
commit 93d9689cfe
2 changed files with 20 additions and 18 deletions
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32
src/RS_images.c
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@ -8,6 +8,7 @@ void getPaletteFromFile(RS_IMAGE *img, FILE *f) {
case 16: case 16:
case 256: case 256:
fread(img->palette, sizeof(unsigned char), entries*3, f); fread(img->palette, sizeof(unsigned char), entries*3, f);
break;
} }
} }
@ -44,60 +45,61 @@ void decodePixels(RS_IMAGE *img) {
break; break;
case 4: case 4:
if (img->paletteEntries == 0) { if (img->paletteEntries == 0) {
size = img->width * img->height;
img->pixels = calloc(1, size); img->pixels = calloc(1, size);
unpack4To8bits(img->samples, img->pixels, size); unpack4To8bits(img->samples, img->pixels, size);
} else if (img->paletteEntries == 16) { } else if (img->paletteEntries == 16) {
size = img->width * img->height;
img->pixels = calloc(1, size*3); img->pixels = calloc(1, size*3);
unpack4To24bitsRGB(img->samples, img->pixels, size, img->palette); unpack4To24bitsRGB(img->samples, img->pixels, size, img->palette);
} }
break; break;
case 8: case 8:
if (img->paletteEntries == 0) { if (img->paletteEntries == 0) {
size = img->width * img->height;
img->pixels = calloc(1, size); img->pixels = calloc(1, size);
memcpy(img->pixels, img->samples, size); memcpy(img->pixels, img->samples, size);
} else if (img->paletteEntries == 256) { } else if (img->paletteEntries == 256) {
size = img->width * img->height;
img->pixels = calloc(1, size*3); img->pixels = calloc(1, size*3);
unpack8To24bitsRGB(img->samples, img->pixels, size, img->palette); unpack8To24bitsRGB(img->samples, img->pixels, size, img->palette);
} }
break; break;
case 16: case 16:
size = img->width * img->height;
img->pixels = calloc(1, size); img->pixels = calloc(1, size);
useOddBytes(img->samples, img->pixels, size); useOddBytes(img->samples, img->pixels, size);
break; break;
} }
} }
void unpack4To8bits(unsigned char *src, unsigned char *dst, int sampling) { void unpack4To8bits(unsigned char *samples_tab, unsigned char *pixels_tab, int sampling) {
int i; int i;
char v; char v;
for(i=0; i<div(sampling,2).quot; i++) { for(i=0; i<div(sampling,2).quot; i++) {
v = src[i]; v = samples_tab[i];
dst[i*2] = ((v >> 4) & 0xF) << 4; pixels_tab[i*2] = ((v >> 4) & 0xF) << 4;
dst[i*2+1] = (v & 0xF) << 4; pixels_tab[i*2+1] = (v & 0xF) << 4;
} }
} }
void unpack4To24bitsRGB(unsigned char *src, unsigned char *dst, int size, unsigned char pal[256][3]) { void unpack4To24bitsRGB(unsigned char *samples_tab, unsigned char *pixels_tab, int size, unsigned char pal[256][3]) {
int i,index; int i,index;
//unsigned char _pRGB[3]; //TODO: Can be remove and use 'dst' directly
//_pRGB = dst;
for(i=0; i<div(size,2).quot; i++) { for(i=0; i<div(size,2).quot; i++) {
index = src[i]; index = samples_tab[i];
dst[i*2] = pal[(index >> 4) & 0xF]; memcpy(&(pixels_tab[i*2]), pal[(index >> 4) & 0xF], sizeof(unsigned char)*3);
dst[i*2+1] = pal[index & 0xF]; memcpy(&(pixels_tab[i*2+1]), pal[index & 0xF], sizeof(unsigned char)*3);
} }
} }
void unpack8To24bitsRGB(unsigned char *src, unsigned char *dst, int size, unsigned char pal[256][3]) { void unpack8To24bitsRGB(unsigned char *samples_tab, unsigned char *pixels_tab, int size, unsigned char pal[256][3]) {
int i,index; int i,index;
unsigned char _pRGB[3]; //TODO: Can be remove and use 'dst' directly
_pRGB = dst;
for(i=0; i<size; i++) { for(i=0; i<size; i++) {
index = src[i]; index = samples_tab[i];
_pRGB[i] = pal[index]; memcpy(&(pixels_tab[i]), pal[index], sizeof(unsigned char)*3);
} }
} }

6
src/RS_images.h
View File

@ -40,9 +40,9 @@ typedef struct RSImage_desc {
///// Declare functions ///// ///// Declare functions /////
///////////////////////////// /////////////////////////////
RS_IMAGE_DESC getImageDescFromType(unsigned char type); //TODO: Optimise function RS_IMAGE_DESC getImageDescFromType(unsigned char type); //TODO: Optimise function
void unpack4To8bits(unsigned char *src, unsigned char *dst, int sampling); void unpack4To8bits(unsigned char *samples_tab, unsigned char *pixels_tab, int sampling);
void unpack4To24bitsRGB(unsigned char *src, unsigned char *dst, int size, unsigned char pal[256][3]); void unpack4To24bitsRGB(unsigned char *samples_tab, unsigned char *pixels_tab, int size, unsigned char pal[256][3]);
void unpack8To24bitsRGB(unsigned char *src, unsigned char *dst, int size, unsigned char pal[256][3]); void unpack8To24bitsRGB(unsigned char *samples_tab, unsigned char *pixels_tab, int size, unsigned char pal[256][3]);
void useOddBytes(unsigned char *src, unsigned char *dst, int size); void useOddBytes(unsigned char *src, unsigned char *dst, int size);
void decodePixels(RS_IMAGE *img); void decodePixels(RS_IMAGE *img);
void getPaletteFromFile(RS_IMAGE *img, FILE *f); void getPaletteFromFile(RS_IMAGE *img, FILE *f);