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Support saving bitmaps to JPEG and PNG format

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Struma 2021-04-28 22:52:21 -04:00 • committed by Roza
parent 5dc40e1fbe
commit f0a52d34ee
1 changed files with 30 additions and 1 deletions
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31
src/display/bitmap.cpp
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@ -931,8 +931,37 @@ void Bitmap::saveToFile(const char *filename)
getRaw(surf->pixels, surf->w * surf->h * 4); getRaw(surf->pixels, surf->w * surf->h * 4);
// Try and determine the intended image format from the filename extension
const char *period = strrchr(filename, '.');
int filetype = 0;
if (period) {
period++;
std::string ext;
for (int i = 0; i < (int)strlen(period); i++) {
ext += tolower(period[i]);
}
if (!ext.compare("png")) {
filetype = 1;
}
else if (!ext.compare("jpg") || !ext.compare("jpeg")) {
filetype = 2;
}
}
std::string fn_normalized = shState->fileSystem().normalize(filename, 1, 1); std::string fn_normalized = shState->fileSystem().normalize(filename, 1, 1);
int rc = SDL_SaveBMP(surf, fn_normalized.c_str()); int rc;
switch (filetype) {
case 2:
rc = IMG_SaveJPG(surf, fn_normalized.c_str(), 90);
break;
case 1:
rc = IMG_SavePNG(surf, fn_normalized.c_str());
break;
case 0: default:
rc = SDL_SaveBMP(surf, fn_normalized.c_str());
break;
}
SDL_FreeSurface(surf); SDL_FreeSurface(surf);
if (rc) throw Exception(Exception::SDLError, "%s", SDL_GetError()); if (rc) throw Exception(Exception::SDLError, "%s", SDL_GetError());