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main.cpp
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main.cpp
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#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <math.h>
#include <unistd.h>
#include <windows.h>
//#include <freeimage.h>
#include "freeimage/freeimage.h"
#include "tim.h"
#define VERSION "1.0"
namespace param {
char InputFile[MAX_PATH] = { 0 };
char OutputFile[MAX_PATH] = { 0 };
int BlackTrans = false; // Make black pixels transparent (STP bit off)
int ColorTrans = false; // Make non-black pixels translucent (STP bit on)
int UseAlphaMask = false; // Use alpha channel as transparency mask
int AlphaThresh = 127; // Alpha mask threshold
int UseAlphaMaskSTP = true; // Use alpha mask to set STP bits
int AlphaThreshLow = 100; // Alpha mask threshold stp low value
int AlphaThreshHigh = 190; // Alpha mask threshold stp high value
int BumpBlack = true; // Bump black levels for non-transparent pixels
int TransColR = -1;
int TransColG = -1;
int TransColB = -1;
int TransCol = -1;
int SemiTransCol = -1; // Sets semi-transparent bit on specified index
int SemiTransStart = -1; // Sets semi-transparent bit on specified range.
int SemiTransEnd = -1; // Requires both to be set.
int OutputBpp = -1;
int Quantize = false; // Quantize palette
int Collapse = false; // Collapse palette
tim::PARAM tim = { 0 };
}
typedef struct {
int fmt; // 0 - 32-bit RGBA, 1 - 8-bit palletized, 2 - 4-bit palletized
short w,h;
void *pixels;
short numCols;
void *colors;
void *alpha;
int sourceBpp;
bool from8to4;
int palCount;
} IMGPARAM;
void ConvertImageToTim(IMGPARAM image, tim::PARAM* tim);
int SimpleQuantize(tim::PARAM* tim, int bitDepth);
int LoadImagePixels(const char* fileName, IMGPARAM* image, bool makeRGBA, int bppMode);
void FreeImageStruct(IMGPARAM* image);
int main(int argc, char *argv[]) {
FreeImage_Initialise(false);
printf("IMG2TIM-EX v%s - Converts image files into PlayStation TIM files\n", VERSION);
printf("2021 Arthur C. S. Lima, 2016 Meido-Tek Productions (Lameguy64/TheCodingBrony)\n");
printf("Powered by FreeImage v%s\n\n", FreeImage_GetVersion());
// Print banner if no arguments were passed
if (argc <= 1) {
printf("Syntax:\n");
printf(" img2tim [options] [-o <outName>] <inFile>\n\n");
printf("Options:\n");
printf(" -b - Sets semi-transparent bit on fully black pixels\n");
printf(" (ignored when -usealpha is specified).\n");
printf(" -t - Set semi-transparent bit on non fully black pixels.\n");
printf(" -org <x y> - Specifies the VRAM offset of the image (Default: 640 0).\n");
printf(" -plt <x y> - Specifies the VRAM offset of the CLUT (Default: 0 480).\n");
printf(" -o <outFile> - Sets the name of the output file (Default: <inFile>.tim).\n");
printf("\nExtra options:\n");
printf(" -disablealphastp - Disable the use of the alpha channel as semi transparency mask.\n");
printf(" -nobumpblack - Disable bumping black levels if color is not transparent.\n");
printf(" -alptr <s e> - Semi-transparent alpha range (Default: 100 - 190)\n");
printf(" -usealpha - Use alpha channel (if available) as transparency mask.\n");
printf(" -alpt <value> - Threshold value when alpha channel is used as transparency\n");
printf(" mask (Default: 127).\n");
printf(" -tindex <col> - Specify color index to be treated as transparent (ignored on\n");
printf(" non palletized images).\n");
printf(" -sindex <col> - Specify a single index to be treated as semi-transparent\n");
printf(" (ignored on non palletized images).\n");
printf(" -srange <s e> - Semi-transparent index range (s = start, e = end)\n");
printf(" -tcol <r g b> - Specify RGB color value to be treated as transparent.\n");
printf(" -bpp <bpp> - Specify color depth for the output TIM file\n");
printf(" (Default: Color depth of source image, 24 is never default).\n");
printf(" -quantize - Enable Palette quantization.\n");
printf(" (Enabling this will modify the original palette,\n"
" not recommended for pixel art)\n");
printf(" -collapse - Collapses a 256 color palette into 16 color, multi-palette.\n");
/*
printf(" -tc <r g b> - Specify color to be treated as transparent.\n");
printf(" -bc <r g b> - Specify blending color when converting alpha-blended pixels.\n");
printf(" -bg <r g b> - Specifies a background color for images with an alpha channel.\n");
printf(" -tc <r g b> - Sepecifies the color to be treated as transparent.\n");
printf(" -qm <method> - Sets the quantization method used for generating a CLUT when\n");
printf(" converting true-color images to 4-bit/8-bit.\n");
printf(" 0 - Simple 'color search' quantization (default)\n");
printf(" 1 - Median-cut quantization\n");
printf(" 2 - Median-cut quantization with dithering\n");
*/
printf("\nFor more info, please read img2tim.txt.\n");
return(0);
}
param::tim.imgXoffs = 640;
param::tim.imgYoffs = 0;
param::tim.clutXoffs = 0;
param::tim.clutYoffs = 480;
// Parse arguments
for(int i=1; i<argc; i++) {
char* arg = strdup(argv[i]);
for(int c=0; arg[c] != 0x00; c++)
arg[c] = tolower(arg[c]);
if (strcmp(arg, "-b") == 0) {
param::BlackTrans = true;
} else if (strcmp(arg, "-t") == 0) {
param::ColorTrans = true;
} else if (strcmp(arg, "-o") == 0) {
strcpy(param::OutputFile, argv[i+1]);
i++;
} else if (strcmp(arg, "-org") == 0) {
param::tim.imgXoffs = atoi(argv[i+1]);
param::tim.imgYoffs = atoi(argv[i+2]);
i += 2;
} else if (strcmp(arg, "-plt") == 0) {
param::tim.clutXoffs = atoi(argv[i+1]);
param::tim.clutYoffs = atoi(argv[i+2]);
i += 2;
} else if (strcmp(arg, "-nobumpblack") == 0) {
param::BumpBlack = false;
} else if (strcmp(arg, "-disablealphastp") == 0) {
param::UseAlphaMaskSTP = false;
} else if (strcmp(arg, "-alptr") == 0) {
param::AlphaThreshLow = atoi(argv[i+1]);
i++;
param::AlphaThreshHigh = atoi(argv[i+1]);
i++;
} else if (strcmp(arg, "-usealpha") == 0) {
param::UseAlphaMask = true;
} else if (strcmp(arg, "-alpt") == 0) {
param::AlphaThresh = atoi(argv[i+1]);
i++;
} else if (strcmp(arg, "-tcol") == 0) {
param::TransColR = atoi(argv[i+1]);
i++;
param::TransColG = atoi(argv[i+1]);
i++;
param::TransColB = atoi(argv[i+1]);
i++;
} else if (strcmp(arg, "-srange") == 0) {
param::SemiTransStart = atoi(argv[i+1]);
i++;
param::SemiTransEnd = atoi(argv[i+1]);
i++;
} else if (strcmp(arg, "-tindex") == 0) {
param::TransCol = atoi(argv[i+1]);
i++;
} else if (strcmp(arg, "-sindex") == 0) {
param::SemiTransCol = atoi(argv[i+1]);
i++;
} else if (strcmp(arg, "-bpp") == 0) {
param::OutputBpp = atoi(argv[i+1]);
if (!((param::OutputBpp == 4) || (param::OutputBpp == 8) || (param::OutputBpp == 16) || (param::OutputBpp == 24))) {
printf("Invalid color depth value specified.\n");
exit(1);
}
i++;
} else if (strcmp(arg, "-quantize") == 0) { // Make RGBA and quantize palette
param::Quantize = true;
i++;
} else if (strcmp(arg, "-collapse") == 0) { // Treat image as 4bit, requires an 8bit image.
param::Collapse = true;
i++;
} else if (arg[0] == '-') {
printf("Unknown parameter: %s\n", argv[i]);
free(arg);
exit(1);
} else {
strcpy(param::InputFile, argv[i]);
}
free(arg);
}
// Check if an input file name is present
if (strlen(param::InputFile) == 0) {
printf("No input file specified.\n");
exit(1);
}
// Check and generate an output filename when necessary
if (strlen(param::OutputFile) == 0) {
if (strrchr(param::InputFile, '.') == NULL) {
printf("Cannot generate output filename, input has no extension.\n");
exit(1);
}
strcpy(param::OutputFile, param::InputFile);
strcpy(strrchr(param::OutputFile, '.'), ".tim");
}
printf("Input File : %s\n", param::InputFile);
printf("Output File : %s\n", param::OutputFile);
IMGPARAM image;
printf("Output Bpp : ");
if (param::OutputBpp == -1) {
if (!LoadImagePixels(param::InputFile, &image, false, param::OutputBpp)) {
return(EXIT_FAILURE);
}
printf("Input Bpp (");
if (image.fmt == 0)
printf("24");
else if (image.fmt == 1)
printf("8");
else if (image.fmt == 2)
printf("4");
printf(")\n\n");
if (param::Quantize == true) {
if (image.fmt != 1 || image.fmt != 2) {
printf("Warning: Quantizing a paletted image will destroy the original palette.\n\n");
}
}
ConvertImageToTim(image, ¶m::tim);
} else {
printf("%d\n\n", param::OutputBpp);
if (param::Quantize == true) {
if (image.fmt != 1 || image.fmt != 2) {
printf("Warning: Quantizing a paletted image will destroy the original palette.\n\n");
}
}
if (!LoadImagePixels(param::InputFile, &image, param::Quantize, param::OutputBpp)) {
return(EXIT_FAILURE);
}
ConvertImageToTim(image, ¶m::tim);
if (param::OutputBpp <= 8) {
if(param::Quantize){
if (!SimpleQuantize(¶m::tim, param::OutputBpp)) {
tim::FreeParam(¶m::tim);
FreeImageStruct(&image);
exit(1);
}
}
tim::FreeParam(¶m::tim);
FreeImageStruct(&image);
exit(1);
}
}
tim::ExportFile(param::OutputFile, ¶m::tim);
tim::FreeParam(¶m::tim);
FreeImageStruct(&image);
printf("Converted successfully...\n\n");
return(0);
}
void ConvertImageToTim(IMGPARAM image, tim::PARAM* tim) {
printf("Conversion!!!! image.fmt = %d\n",image.fmt);
printf("Source Bpp = %d\n",image.sourceBpp);
printf("256 to 16 = %d\n",image.from8to4);
printf("Pal Count = %d\n", image.palCount);
if (image.fmt == 0) {
if (param::OutputBpp == 24) { // Convert image from 32-bit RGBA to 24-bit RGB
tim->imgData = malloc(3*(image.w*image.h));
for(short py=0; py<image.h; py++) {
for(short px=0; px<image.w; px++) {
u_char r = ((u_char*)image.pixels)[4*(px+(image.w*py))];
u_char g = ((u_char*)image.pixels)[(4*(px+(image.w*py)))+1];
u_char b = ((u_char*)image.pixels)[(4*(px+(image.w*py)))+2];
((tim::PIX_RGB24*)tim->imgData)[px+(image.w*py)].r = r;
((tim::PIX_RGB24*)tim->imgData)[px+(image.w*py)].g = g;
((tim::PIX_RGB24*)tim->imgData)[px+(image.w*py)].b = b;
}
}
tim->format = 3;
tim->imgWidth = image.w;
tim->imgHeight = image.h;
} else { // Convert image from 32-bit RGBA to 16-bit RGBi
tim->imgData = malloc(2*(image.w*image.h));
for(short py=0; py<image.h; py++) {
for(short px=0; px<image.w; px++) {
u_char r = ((u_char*)image.pixels)[4*(px+(image.w*py))];
u_char g = ((u_char*)image.pixels)[(4*(px+(image.w*py)))+1];
u_char b = ((u_char*)image.pixels)[(4*(px+(image.w*py)))+2];
u_char a = ((u_char*)image.pixels)[(4*(px+(image.w*py)))+3];
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].r = r/8;
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].g = g/8;
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].b = b/8;
if(param::UseAlphaMaskSTP == true) {
// Define alpha automatically
// For fully-black pixels always completely transparent in this mode
if ((r == 0) && (g == 0) && (b == 0)) {
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].i = 0;
} else {
if (a < param::AlphaThreshLow) { // Black out any pixel below the threshold
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].r = 0;
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].g = 0;
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].b = 0;
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].i = 0;
} else if (a <= param::AlphaThreshHigh) { // Below STP threshold but above cutout, set STP bit
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].i = 1;
} else { // Alpha above threshold, set to opaque
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].i = 0;
}
if (param::ColorTrans) // If ColorTrans is true force STP flag
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].i = 1;
}
} else if (param::UseAlphaMask == false) {
// For fully-black pixels
if ((r == 0) && (g == 0) && (b == 0)) {
if (param::BlackTrans)
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].i = 1;
else
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].i = 0;
// For non-fully black pixels
} else {
if (param::ColorTrans)
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].i = 1;
else
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].i = 0;
}
} else {
if ((r == 0) && (g == 0) && (b == 0)) {
if (a >= param::AlphaThresh)
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].i = 1;
else
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].i = 0;
} else {
if (a < param::AlphaThresh) {
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].r = 0;
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].g = 0;
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].b = 0;
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].i = 0;
} else {
if (param::ColorTrans)
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].i = 1;
else
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].i = 0;
}
}
}
if ((param::TransColR == r) && (param::TransColG == g) && (param::TransColB == b)) {
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].r = 0;
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].g = 0;
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].b = 0;
((tim::PIX_RGB5*)tim->imgData)[px+(image.w*py)].i = 0;
}
}
}
tim->format = 2;
tim->imgWidth = image.w;
tim->imgHeight = image.h;
}
} else if (image.fmt == 1 && !image.from8to4) { // Convert 8-bit palletized
if ((image.w%2) != 0)
printf("WARNING: Image width is not a multiple of 2, output may be broken.\n");
tim->clutData = malloc(2*256);
tim->clutWidth = 256;
tim->clutHeight = 1;
for(short c=0; c<256; c++) {
u_char r = ((RGBQUAD*)image.colors)[c].rgbRed;
u_char g = ((RGBQUAD*)image.colors)[c].rgbGreen;
u_char b = ((RGBQUAD*)image.colors)[c].rgbBlue;
u_char a = ((u_char*)image.alpha)[c];
if (param::TransCol == -1) {
if ((param::TransColR == r) && (param::TransColG == g) && (param::TransColB == b)) {
param::TransCol = c;
}
}
if (c != param::TransCol) {
((tim::PIX_RGB5*)tim->clutData)[c].r = r/8;
((tim::PIX_RGB5*)tim->clutData)[c].g = g/8;
((tim::PIX_RGB5*)tim->clutData)[c].b = b/8;
// For fully-black pixels
if ((r == 0) && (g == 0) && (b == 0)) {
if(!param::UseAlphaMaskSTP){
if (param::BlackTrans)
((tim::PIX_RGB5*)tim->clutData)[c].i = 1;
else
((tim::PIX_RGB5*)tim->clutData)[c].i = 0;
} else { // If using alpha mask to set transparency
if(a == 0) {
((tim::PIX_RGB5*)tim->clutData)[c].i = 0;
} else {
if(param::BumpBlack) {
((tim::PIX_RGB5*)tim->clutData)[c].r = 1;
((tim::PIX_RGB5*)tim->clutData)[c].g = 1;
((tim::PIX_RGB5*)tim->clutData)[c].b = 1;
}
if(a >= param::AlphaThreshLow && a <= param::AlphaThreshHigh) {
((tim::PIX_RGB5*)tim->clutData)[c].i = 1;
} else {
((tim::PIX_RGB5*)tim->clutData)[c].i = 0;
}
}
}
// For non-fully black pixels
} else {
if(param::UseAlphaMaskSTP){
if(a >= param::AlphaThreshLow && a <= param::AlphaThreshHigh) {
((tim::PIX_RGB5*)tim->clutData)[c].i = 1;
} else {
((tim::PIX_RGB5*)tim->clutData)[c].i = 0;
}
if (param::ColorTrans) // If ColorTrans is true force STP flag
((tim::PIX_RGB5*)tim->clutData)[c].i = 1;
if(a < param::AlphaThreshLow) { // Force color to black if alpha is below threshold
((tim::PIX_RGB5*)tim->clutData)[c].r = 0;
((tim::PIX_RGB5*)tim->clutData)[c].g = 0;
((tim::PIX_RGB5*)tim->clutData)[c].b = 0;
((tim::PIX_RGB5*)tim->clutData)[c].i = 0;
}
} else {
if (param::ColorTrans)
((tim::PIX_RGB5*)tim->clutData)[c].i = 1;
else
((tim::PIX_RGB5*)tim->clutData)[c].i = 0;
}
}
} else {
((tim::PIX_RGB5*)tim->clutData)[c].r = 0;
((tim::PIX_RGB5*)tim->clutData)[c].g = 0;
((tim::PIX_RGB5*)tim->clutData)[c].b = 0;
((tim::PIX_RGB5*)tim->clutData)[c].i = 0;
}
// Force newer parameters to override older settings.
// Single Semi-trans index
if(c == param::SemiTransCol){
((tim::PIX_RGB5*)tim->clutData)[c].i = 1;
}
// Semi-trans range
if(c >= param::SemiTransStart && c <= param::SemiTransEnd){
((tim::PIX_RGB5*)tim->clutData)[c].i = 1;
}
}
tim->imgData = malloc(image.w*image.h);
for(short py=0; py<image.h; py++) {
memcpy(&((u_char*)tim->imgData)[image.w*py], &((u_char*)image.pixels)[image.w*py], image.w);
}
tim->format = 1;
tim->imgWidth = image.w;
tim->imgHeight = image.h;
} else if (image.fmt == 2 || image.from8to4) { // Convert image for 4-bit TIM
if ((image.w%4) != 0)
printf("WARNING: Image width is not a multiple of 4, output may be broken.\n");
tim->clutData = malloc(2*16*image.palCount);
tim->clutWidth = 16;
tim->clutHeight = image.palCount;
for(short c=0; c<(16*image.palCount); c++) {
u_char r = ((RGBQUAD*)image.colors)[c].rgbRed;
u_char g = ((RGBQUAD*)image.colors)[c].rgbGreen;
u_char b = ((RGBQUAD*)image.colors)[c].rgbBlue;
u_char a = ((u_char*)image.alpha)[c];
printf("[%d] alpha level: %d\n", c, a);
if (param::TransCol == -1) {
if ((param::TransColR == r) && (param::TransColG == g) && (param::TransColB == b)) {
param::TransCol = c;
}
}
if (c != param::TransCol) {
((tim::PIX_RGB5*)tim->clutData)[c].r = r/8;
((tim::PIX_RGB5*)tim->clutData)[c].g = g/8;
((tim::PIX_RGB5*)tim->clutData)[c].b = b/8;
// For fully-black pixels
if ((r == 0) && (g == 0) && (b == 0)) {
if(!param::UseAlphaMaskSTP){
if (param::BlackTrans)
((tim::PIX_RGB5*)tim->clutData)[c].i = 1;
else
((tim::PIX_RGB5*)tim->clutData)[c].i = 0;
} else { // If using alpha mask to set transparency
if(a == 0) {
((tim::PIX_RGB5*)tim->clutData)[c].i = 0;
} else {
if(param::BumpBlack) {
((tim::PIX_RGB5*)tim->clutData)[c].r = 1;
((tim::PIX_RGB5*)tim->clutData)[c].g = 1;
((tim::PIX_RGB5*)tim->clutData)[c].b = 1;
}
if(a >= param::AlphaThreshLow && a <= param::AlphaThreshHigh) {
((tim::PIX_RGB5*)tim->clutData)[c].i = 1;
} else {
((tim::PIX_RGB5*)tim->clutData)[c].i = 0;
}
}
}
// For non-fully black pixels
} else {
if(param::UseAlphaMaskSTP){
if(a >= param::AlphaThreshLow && a <= param::AlphaThreshHigh) {
((tim::PIX_RGB5*)tim->clutData)[c].i = 1;
} else {
((tim::PIX_RGB5*)tim->clutData)[c].i = 0;
}
if (param::ColorTrans) // If ColorTrans is true force STP flag
((tim::PIX_RGB5*)tim->clutData)[c].i = 1;
if(a < param::AlphaThreshLow) { // Force color to black if alpha is below threshold
((tim::PIX_RGB5*)tim->clutData)[c].r = 0;
((tim::PIX_RGB5*)tim->clutData)[c].g = 0;
((tim::PIX_RGB5*)tim->clutData)[c].b = 0;
((tim::PIX_RGB5*)tim->clutData)[c].i = 0;
}
} else {
if (param::ColorTrans)
((tim::PIX_RGB5*)tim->clutData)[c].i = 1;
else
((tim::PIX_RGB5*)tim->clutData)[c].i = 0;
}
}
} else {
((tim::PIX_RGB5*)tim->clutData)[c].r = 0;
((tim::PIX_RGB5*)tim->clutData)[c].g = 0;
((tim::PIX_RGB5*)tim->clutData)[c].b = 0;
((tim::PIX_RGB5*)tim->clutData)[c].i = 0;
}
// Force newer parameters to override older settings.
// Single Semi-trans index
if(c == param::SemiTransCol){
((tim::PIX_RGB5*)tim->clutData)[c].i = 1;
}
// Semi-trans range
if(c >= param::SemiTransStart && c <= param::SemiTransEnd){
((tim::PIX_RGB5*)tim->clutData)[c].i = 1;
}
}
tim->imgData = malloc((image.w/2)*image.h);
if(!image.from8to4){
for(short py=0; py<image.h; py++) {
for(short px=0; px<image.w/2; px++) {
u_char pix = ((u_char*)image.pixels)[px+((image.w/2)*py)];
((u_char*)tim->imgData)[px+((image.w/2)*py)] = ((pix&0xf)<<4)|((pix>>4)&0xf);
}
}
} else {
for(short py=0; py<image.h; py++) {
for(short px=0; px<image.w/2; px++) {
u_char pixA = ((u_char*)image.pixels)[(px*2)+(image.w)*py];
u_char pixB = ((u_char*)image.pixels)[(px*2)+1+(image.w)*py];
((u_char*)tim->imgData)[px+((image.w/2)*py)] = ((pixB&0xf)<<4)|((pixA)&0xf);
//printf("%x%x",pixA,pixB);
}
//printf("\n");
}
}
tim->format = 0;
tim->imgWidth = image.w;
tim->imgHeight = image.h;
}
}
int SimpleQuantize(tim::PARAM* tim, int bitDepth) {
u_short colTable[256] = { 0 };
int diffColors = 0;
bool newCol = true;
if (bitDepth == 8) {
if ((tim->imgWidth%2) != 0)
printf("WARNING: Image width is not a multiple of 2, output may be broken.\n");
} else {
if ((tim->imgWidth%4) != 0)
printf("WARNING: Image width is not a multiple of 4, output may be broken.\n");
}
for(int py=0; py<tim->imgHeight; py++) {
for(int px=0; px<tim->imgWidth; px++) {
u_short pix = ((u_short*)tim->imgData)[px+(tim->imgWidth*py)];
for(short c=0; c<diffColors; c++) {
if (colTable[c] == pix) {
newCol = false;
break;
} else {
newCol = true;
}
}
if (newCol) {
if (bitDepth == 8) {
if (diffColors >= 255) {
printf("ERROR: More than 256 colors found in image.\n");
return(0);
}
} else {
if (diffColors >= 16) {
printf("ERROR: More than 16 colors found in image.\n");
return(0);
}
}
colTable[diffColors] = pix;
diffColors++;
newCol = false;
}
}
}
u_short* srcImage = (u_short*)tim->imgData;
if (bitDepth == 8) {
tim->imgData = malloc(tim->imgWidth*tim->imgHeight);
for(int py=0; py<tim->imgHeight; py++) {
for(int px=0; px<tim->imgWidth; px++) {
u_short pix = srcImage[px+(tim->imgWidth*py)];
short index;
for(index=0; index<diffColors; index++) {
if (pix == colTable[index])
break;
}
if (index < diffColors) {
((u_char*)tim->imgData)[px+(tim->imgWidth*py)] = index;
}
}
}
} else {
tim->imgData = malloc((tim->imgWidth/2)*tim->imgHeight);
for(int py=0; py<tim->imgHeight; py++) {
for(int px=0; px<tim->imgWidth; px++) {
u_short pix = srcImage[px+(tim->imgWidth*py)];
short index;
for(index=0; index<diffColors; index++) {
if (pix == colTable[index])
break;
}
if (index < diffColors) {
if ((px%2) == 0) {
((u_char*)tim->imgData)[(px/2)+((tim->imgWidth/2)*py)] = index;
} else {
((u_char*)tim->imgData)[(px/2)+((tim->imgWidth/2)*py)] |= index<<4;
}
}
}
}
}
free(srcImage);
if (bitDepth == 8) {
tim->clutData = malloc(2*256);
memcpy(tim->clutData, colTable, 2*256);
tim->clutWidth = 256;
} else {
tim->clutData = malloc(2*16);
memcpy(tim->clutData, colTable, 2*16);
tim->clutWidth = 16;
}
tim->clutHeight = 1;
if (bitDepth == 8) {
tim->format = 1;
} else {
tim->format = 0;
}
return(1);
}
int CompareRGBQUAD(RGBQUAD * a, RGBQUAD * b) {
return (a->rgbRed == b->rgbRed && a->rgbGreen == b->rgbGreen && a->rgbBlue == b->rgbBlue);
}
int LoadImagePixels(const char* fileName, IMGPARAM* image, bool makeRGBA, int bppMode) {
int alphaCount = 0;
int pal4bitCount = 1;
// Check if file exists
if (access(fileName, F_OK) == -1) {
printf("ERROR: File not found.\n");
return(0);
}
// Determine format of input file
FREE_IMAGE_FORMAT fif = FreeImage_GetFileType(fileName, 0);
if (fif == FIF_UNKNOWN) {
fif = FreeImage_GetFIFFromFilename(fileName);
if (!FreeImage_FIFSupportsReading(fif)) {
printf("ERROR: Unknown/unsupported image format.\n");
return(0);
}
}
// Load the input image
FIBITMAP *srcImage = FreeImage_Load(fif, fileName, 0);
if (srcImage == NULL) {
printf("ERROR: Cannot load specified image file.\n");
return(0);
}
// Some checks to make sure that the image is really valid
if (!FreeImage_HasPixels(srcImage)) {
printf("ERROR: Source image has no pixel data... Somehow.\n");
return(0);
}
if ((makeRGBA) || (FreeImage_GetBPP(srcImage) == 24) || ((FreeImage_GetBPP(srcImage) > 32))) {
// Convert to RGBA32 for 16-bit and 24-bit exports
FIBITMAP *tempImage;
// Just to make things simpler, convert pixels to RGB32 when it is not palletized
tempImage = FreeImage_ConvertTo32Bits(srcImage);
if (tempImage == NULL) {
printf("ERROR: Could not convert image to RGBA32 for conversion.\n");
FreeImage_Unload(srcImage);
return(0);
}
FreeImage_Unload(srcImage);
srcImage = tempImage;
}
// Convert 8-bit to 4-bit flag
// Set it to false beforehand
image->from8to4 = false;
switch(FreeImage_GetBPP(srcImage)) {
case 32: // 32-bit images
image->fmt = 0;
image->w = FreeImage_GetWidth(srcImage);
image->h = FreeImage_GetHeight(srcImage);
image->numCols = 0;
image->colors = NULL;
image->pixels = malloc(4*(image->w*image->h));
image->sourceBpp = 32;
for(short py=0; py<image->h; py++) {
void* pixels = FreeImage_GetScanLine(srcImage, (image->h-py)-1);
memcpy(&((u_int*)image->pixels)[image->w*py], pixels, 4*image->w);
for(short p=0; p<image->w; p++) {
u_char* pix = (u_char*)&((u_int*)image->pixels)[ p+(image->w*py) ];
u_char t;
t = pix[0];
pix[0] = pix[2];
pix[2] = t;
}
}
break;
case 8: // 8-bit palletized
image->fmt = 1;
image->w = FreeImage_GetWidth(srcImage);
image->h = FreeImage_GetHeight(srcImage);
image->palCount = 1;
image->numCols = 256;
image->colors = malloc(4*256);
image->alpha = malloc(256);
alphaCount = FreeImage_GetTransparencyCount(srcImage);
pal4bitCount = alphaCount / 16;