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https://frontier.innolan.net/github/AmigaExamples.git
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105 lines
3.0 KiB
C
105 lines
3.0 KiB
C
#include "imagecon.h"
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void palette_loadFile(imagecon_image_t* ic)
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{
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FILE* fp = file_openRead(config.overridePalette);
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int paletteIndex;
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for (paletteIndex = 0; paletteIndex < MAX_PALETTE; paletteIndex++) {
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unsigned int c;
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char buffer[255];
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char* line = fgets(buffer, 255, fp);
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if (!line) {
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break;
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}
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sscanf(buffer, "%x\n", &c);
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ic->palette[paletteIndex].r = (c >> 8 & 0xF) << 4;
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ic->palette[paletteIndex].g = (c >> 4 & 0xF) << 4;
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ic->palette[paletteIndex].b = (c >> 0 & 0xF) << 4;
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ic->palette[paletteIndex].a = 255;
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}
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ic->numColors = paletteIndex;
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}
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#define RGB24TORGB12(x) (x >> 4)
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void
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palette_output(char* outFilename, imagecon_image_t* ic)
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{
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if (config.verbose) {
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printf("outputPalette...%d colors\n", ic->numColors);
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}
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FILE* fp = 0;
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FILE* paletteFP = 0;
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FILE* paletteAsmFP = 0;
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FILE* paletteGreyFP = 0;
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if (config.outputCopperList) {
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fp = file_openWrite("%s-copper-list.s", outFilename);
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}
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if (config.outputPalette) {
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paletteFP = file_openWrite("%s.pal", outFilename);
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}
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if (config.outputPaletteGrey) {
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paletteGreyFP = file_openWrite("%s-grey.s", outFilename);
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fprintf(paletteGreyFP, "\tmovem.l d0-a6,-(sp)\n\tlea CUSTOM,a6\n");
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}
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if (config.outputPaletteAsm) {
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paletteAsmFP = file_openWrite("%s-palette.s", outFilename);
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fprintf(paletteAsmFP, "\tmovem.l d0-a6,-(sp)\n\tlea CUSTOM,a6\n");
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}
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if (config.verbose) {
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printf("outputPalette:\n");
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}
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for (int i = 0; i < (config.ehbMode ? ic->numColors/2 : ic->numColors); i++) {
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if (config.verbose) {
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printf("%02d: hex=%03x r=%03d g=%03d b=%03d a=%03d\n", i , ic->palette[i].r << 8 | ic->palette[i].g << 4 | ic->palette[i].b, ic->palette[i].r, ic->palette[i].g, ic->palette[i].b, ic->palette[i].a);
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}
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if (paletteFP) {
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fprintf(paletteFP, "%03x\n", RGB24TORGB12(ic->palette[i].r) << 8 | RGB24TORGB12(ic->palette[i].g) << 4 | RGB24TORGB12(ic->palette[i].b));
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}
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if (paletteAsmFP) {
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fprintf(paletteAsmFP, "\tlea COLOR%02d(a6),a0\n\tmove.w #$%03x,(a0)\n", i, RGB24TORGB12(ic->palette[i].r) << 8 | RGB24TORGB12(ic->palette[i].g) << 4 | RGB24TORGB12(ic->palette[i].b));
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}
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if (paletteGreyFP) {
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// TODO: this is for compat, can be better
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unsigned grey = ((RGB24TORGB12(ic->palette[i].r) + RGB24TORGB12(ic->palette[i].g) + RGB24TORGB12(ic->palette[i].b))/3);
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fprintf(paletteGreyFP, "\tlea COLOR%02d(a6),a0\n\tmove.w #$%03x,(a0)\n", i, grey << 8 | grey << 4 | grey);
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}
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if (fp) {
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fprintf(fp, "\tdc.w $%x,$%x\n", 0x180+(i*2), RGB24TORGB12(ic->palette[i].r) << 8 | RGB24TORGB12(ic->palette[i].g) << 4 | RGB24TORGB12(ic->palette[i].b));
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}
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}
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if (paletteFP) {
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fclose(paletteFP);
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}
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if (paletteGreyFP) {
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fprintf(paletteGreyFP, "\tmovem.l (sp)+,d0-a6\n");
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fclose(paletteGreyFP);
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}
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if (paletteAsmFP) {
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fprintf(paletteAsmFP, "\tmovem.l (sp)+,d0-a6\n");
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fclose(paletteFP);
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}
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if (fp) {
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fclose(fp);
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}
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if (config.verbose) {
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printf("done\n\n");
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}
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}
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