static int gifdrv_open_memmap(const char *filename, int x_size, int y_size, BYTE *palette)
{
unsigned int i;
GifColorType ColorMap256[256];
#if GIFLIB_MAJOR >= 5
int ec;
#endif
gifdrv_memmap_ext_filename = util_add_extension_const(filename, gif_drv.default_extension);
gifdrv_memmap_fd = VICE_EGifOpenFileName(gifdrv_memmap_ext_filename, 0, &ec);
if (gifdrv_memmap_fd == NULL) {
lib_free(gifdrv_memmap_ext_filename);
return -1;
}
gif_colors = VICE_MakeMapObject(256, ColorMap256);
for (i = 0; i < 256; i++) {
gif_colors->Colors[i].Blue = palette[(i * 3) + 2];
gif_colors->Colors[i].Green = palette[(i * 3) + 1];
gif_colors->Colors[i].Red = palette[i * 3];
}
#if GIFLIB_MAJOR < 5
EGifSetGifVersion("87a");
#endif
if (EGifPutScreenDesc(gifdrv_memmap_fd, x_size, y_size, 8, 0, gif_colors) == GIF_ERROR ||
EGifPutImageDesc(gifdrv_memmap_fd, 0, 0, x_size, y_size, 0, NULL) == GIF_ERROR) {
VICE_EGifCloseFile(gifdrv_memmap_fd);
VICE_FreeMapObject(gif_colors);
lib_free(gifdrv_memmap_ext_filename);
return -1;
}
return 0;
}
bool toGif(QImage& img, QString& path)
{
int errcode;
if(QFile(path).exists()) // Remove old file
QFile::remove(path);
GifFileType* t = EGifOpenFileName(path.toLocal8Bit().data(),true, &errcode);
if(!t){
EGifCloseFile(t, &errcode);
QTextStream(stdout) << "Can't open\n";
return false;
}
EGifSetGifVersion(t, true);
GifColorType* colorArr = new GifColorType[256];
ColorMapObject* cmo = GifMakeMapObject(256, colorArr);
bool unfinished = false;
QImage tarQImg(img.width(), img.height(), QImage::Format_Indexed8);
QVector<QRgb> table;
for(int y = 0; y < img.height(); y++){
for(int x = 0; x < img.width(); x++){
if(table.size() >= 256){
unfinished = true;
break;
}
QRgb pix;
if(!table.contains(pix = img.pixel(x,y))){
table.push_back(pix);
tarQImg.setColor(tarQImg.colorCount(), pix);
}
tarQImg.setPixel(x,y,table.indexOf(pix));
}
if(table.size() >= 256){
unfinished = true;
break;
}
}
if(unfinished){
EGifCloseFile(t, &errcode);
QTextStream(stdout) << "Unfinished\n";
return false;
}
for(int l = tarQImg.colorCount(); l < 256; l++){
tarQImg.setColor(l,0);
}
if(tarQImg.colorTable().size() != 256){
EGifCloseFile(t, &errcode);
QTextStream(stdout) << "A lot of colors\n";
return false;
}
QVector<QRgb> clTab = tarQImg.colorTable();
for(int i = 0; i < 255; i++){
QRgb rgb = clTab[i];
colorArr[i].Red = qRed(rgb);
colorArr[i].Green = qGreen(rgb);
colorArr[i].Blue = qBlue(rgb);
}
cmo->Colors = colorArr;
errcode = EGifPutScreenDesc(t, img.width(), img.height(), 256, 0, cmo);
if(errcode != GIF_OK){
EGifCloseFile(t, &errcode);
QTextStream(stdout) << "EGifPutScreenDesc error 1\n";
return false;
}
errcode = EGifPutImageDesc(t, 0, 0, img.width(), img.height(), false, 0);
if(errcode != GIF_OK){
EGifCloseFile(t, &errcode);
QTextStream(stdout) << "EGifPutImageDesc error 2\n";
return false;
}
//gen byte array
GifByteType* byteArr = tarQImg.bits();
for(int h = 0; h < tarQImg.height(); h++){
errcode = EGifPutLine(t, byteArr, tarQImg.width());
if(errcode != GIF_OK){
EGifCloseFile(t, &errcode);
QTextStream(stdout) << "EGifPutLine error 3\n";
return false;
}
byteArr += tarQImg.width();
byteArr += ((tarQImg.width() % 4)!=0 ? 4 - (tarQImg.width() % 4) : 0);
}
if(errcode != GIF_OK){
QTextStream(stdout) << "GIF error 4\n";
return false;
}
EGifCloseFile(t, &errcode);
return true;
}
static int write_gif_info(const psx_image* image, image_writer_fn func, void* param,
float quality, psx_image_header* header)
{
size_t buf_size;
#if GIFLIB_MAJOR >= 5
int errorcode = 0;
#endif
struct gif_image_ctx* ctx = (struct gif_image_ctx*)calloc(1, sizeof(struct gif_image_ctx));
if (!ctx) {
return -1; // out of memory.
}
ctx->writer = func;
ctx->writer_param = param;
#if GIFLIB_MAJOR >= 5
if ((ctx->gif = EGifOpen((void*)ctx, write_gif_from_memory, &errorcode)) == NULL) {
free(ctx);
return -1;
}
if (image->num_frames > 1) {
EGifSetGifVersion(ctx->gif, true);
}
#else
if ((ctx->gif = EGifOpen((void*)ctx, write_gif_from_memory)) == NULL) {
free(ctx);
return -1;
}
if (image->num_frames > 1) {
EGifSetGifVersion("89a");
} else {
EGifSetGifVersion("87a");
}
#endif
if (EGifPutScreenDesc(ctx->gif, image->width, image->height, 8, 0, NULL) == GIF_ERROR) {
GIF_CLOSE_EFILE(ctx->gif);
free(ctx);
return -1;
}
if (image->num_frames > 1) { // add netscape2.0 application extension to an animation gif.
#if GIFLIB_MAJOR >= 5
EGifPutExtensionLeader(ctx->gif, APPLICATION_EXT_FUNC_CODE);
EGifPutExtensionBlock(ctx->gif, 11, "NETSCAPE2.0");
EGifPutExtensionBlock(ctx->gif, 3, "\x01\x00\x00");
EGifPutExtensionTrailer(ctx->gif);
#else
EGifPutExtensionFirst(ctx->gif, APPLICATION_EXT_FUNC_CODE, 11, "NETSCAPE2.0");
EGifPutExtensionLast(ctx->gif, APPLICATION_EXT_FUNC_CODE, 3, "\x01\x00\x00");
#endif
}
buf_size = image->width * image->height * sizeof(GifByteType);
ctx->red_buf = (GifByteType*)malloc(buf_size);
ctx->green_buf = (GifByteType*)malloc(buf_size);
ctx->blue_buf = (GifByteType*)malloc(buf_size);
ctx->output_buffer = (GifByteType*)malloc(buf_size);
if (!ctx->red_buf || !ctx->green_buf || !ctx->blue_buf || !ctx->output_buffer) {
GIF_CLOSE_EFILE(ctx->gif);
if (ctx->red_buf)
free(ctx->red_buf);
if (ctx->green_buf)
free(ctx->green_buf);
if (ctx->blue_buf)
free(ctx->blue_buf);
if (ctx->output_buffer)
free(ctx->output_buffer);
free(ctx);
return -1;
}
header->priv = ctx;
header->width = image->width;
header->height = image->height;
header->pitch = image->pitch;
header->depth = get_depth(image->format);
header->bpp = get_bpp(image->format);
header->format = (int)image->format;
header->alpha = 1;
header->frames = (int)image->num_frames;
return 0;
}
bool Graphics::toGif(QImage &img, QString &path)
{
int errcode;
if(QFile(path).exists()) // Remove old file
QFile::remove(path);
GifFileType *t = EGifOpenFileName(path.toStdString().c_str(), true, &errcode);
if(!t)
{
EGifCloseFile(t, &errcode);
std::cout << "Can't open\n";
return false;
}
EGifSetGifVersion(t, true);
std::vector<GifColorType>colorArr;
colorArr.resize(256);
ColorMapObject *cmo = GifMakeMapObject(256, colorArr.data());
bool unfinished = false;
QImage tarQImg(img.width(), img.height(), QImage::Format_Indexed8);
QVector<QRgb> table;
for(int y = 0; y < img.height(); y++)
{
for(int x = 0; x < img.width(); x++)
{
if(table.size() >= 256)
{
unfinished = true;
break;
}
QRgb pix;
if(!table.contains(pix = img.pixel(x, y)))
{
table.push_back(pix);
tarQImg.setColor(tarQImg.colorCount(), pix);
}
tarQImg.setPixel(x, y, static_cast<uint>(table.indexOf(pix)));
}
if(table.size() >= 256)
{
unfinished = true;
break;
}
}
if(unfinished)
{
GifFreeMapObject(cmo);
EGifCloseFile(t, &errcode);
std::cout << "Unfinished\n";
return false;
}
for(int l = tarQImg.colorCount(); l < 256; l++)
tarQImg.setColor(l, 0);
if(tarQImg.colorTable().size() != 256)
{
GifFreeMapObject(cmo);
EGifCloseFile(t, &errcode);
std::cout << "A lot of colors\n";
return false;
}
std::vector<QRgb> clTab = tarQImg.colorTable().toStdVector();
for(size_t i = 0; i < 255; i++)
{
QRgb rgb = clTab[i];
colorArr[i].Red = static_cast<unsigned char>(qRed(rgb));
colorArr[i].Green = static_cast<unsigned char>(qGreen(rgb));
colorArr[i].Blue = static_cast<unsigned char>(qBlue(rgb));
}
cmo->Colors = colorArr.data();
errcode = EGifPutScreenDesc(t, img.width(), img.height(), 256, 0, cmo);
if(errcode != GIF_OK)
{
GifFreeMapObject(cmo);
EGifCloseFile(t, &errcode);
std::cout << "EGifPutScreenDesc error 1\n";
return false;
}
errcode = EGifPutImageDesc(t, 0, 0, img.width(), img.height(), false, 0);
if(errcode != GIF_OK)
{
GifFreeMapObject(cmo);
EGifCloseFile(t, &errcode);
std::cout << "EGifPutImageDesc error 2\n";
return false;
}
//gen byte array
GifByteType *byteArr = tarQImg.bits();
for(int h = 0; h < tarQImg.height(); h++)
{
errcode = EGifPutLine(t, byteArr, tarQImg.width());
if(errcode != GIF_OK)
{
GifFreeMapObject(cmo);
EGifCloseFile(t, &errcode);
std::cout << "EGifPutLine error 3\n";
return false;
}
byteArr += tarQImg.width();
byteArr += ((tarQImg.width() % 4) != 0 ? 4 - (tarQImg.width() % 4) : 0);
}
GifFreeMapObject(cmo);
EGifCloseFile(t, &errcode);
return true;
}
bool ParupaintPanvasInputOutput::exportGIF(ParupaintPanvas * panvas, const QString & filename, QString & errorStr)
{
Q_ASSERT(panvas);
if(filename.isEmpty())
return (errorStr = "Enter a filename to save to.").isEmpty();
#ifndef PARUPAINT_NOGIF
int error = 0;
GifFileType * gif = EGifOpenFileName(filename.toStdString().c_str(), false, &error);
foreach(const QImage & image, panvas->mergedImageFrames(true)){
error = 0;
bool alpha = false;
QImage toWrite = convertToIndexed8(image, &alpha);
QVector<QRgb> colorTable = toWrite.colorTable();
ColorMapObject cmap;
int numColors = 1 << BitSize(toWrite.colorCount());
numColors = 256;
cmap.ColorCount = numColors;
cmap.BitsPerPixel = 8; /// @todo based on numColors (or not? we did ask for Format_Indexed8, so the data is always 8-bit, right?)
GifColorType* colorValues = (GifColorType*)malloc(cmap.ColorCount * sizeof(GifColorType));
cmap.Colors = colorValues;
int c = 0;
for(; c < toWrite.colorCount(); ++c)
{
//qDebug("color %d has %02X%02X%02X", c, qRed(colorTable[c]), qGreen(colorTable[c]), qBlue(colorTable[c]));
colorValues[c].Red = qRed(colorTable[c]);
colorValues[c].Green = qGreen(colorTable[c]);
colorValues[c].Blue = qBlue(colorTable[c]);
}
// In case we had an actual number of colors that's not a power of 2,
// fill the rest with something (black perhaps).
for (; c < numColors; ++c)
{
colorValues[c].Red = 0;
colorValues[c].Green = 0;
colorValues[c].Blue = 0;
}
/// @todo how to specify which version, or decide based on features in use
// Because of this call, libgif is not re-entrant
EGifSetGifVersion(gif, true);
if ((error = EGifPutScreenDesc(gif, toWrite.width(), toWrite.height(), numColors, 0, &cmap)) == GIF_ERROR)
qCritical("EGifPutScreenDesc returned error %d", error);
int fps = (100.0/panvas->frameRate());
char flags = 1 << 3;
if(alpha) flags |= 1;
char graphics_ext[] = {
flags,
(char)(fps % 256), (char)(fps / 256),
(char)(alpha ? 0x00 : 0xff)
};
EGifPutExtension(gif, GRAPHICS_EXT_FUNC_CODE, 4, graphics_ext);
if ((error = EGifPutImageDesc(gif, 0, 0, toWrite.width(), toWrite.height(), 0, &cmap)) == GIF_ERROR)
qCritical("EGifPutImageDesc returned error %d", error);
int lc = toWrite.height();
int llen = toWrite.bytesPerLine();
for (int l = 0; l < lc; ++l) {
uchar* line = toWrite.scanLine(l);
if ((error = EGifPutLine(gif, (GifPixelType*)line, llen)) == GIF_ERROR) {
qCritical("EGifPutLine returned error %d", error);
}
}
if(true){
// loop forever
unsigned char loopblock[3] = {1, 0, 0};
EGifPutExtensionLeader(gif, APPLICATION_EXT_FUNC_CODE);
EGifPutExtensionBlock(gif, 11, "NETSCAPE2.0");
EGifPutExtensionBlock(gif, 3, loopblock);
EGifPutExtensionTrailer(gif);
}
}
EGifCloseFile(gif, &error);
return true;
#endif
return (errorStr = "GIF export not available.").isEmpty();
}
