int FixFile(const char *pFileName)
{
png_t Png;
CPixel *pBuffer[2] = {0,0};
png_init(0, 0);
png_open_file(&Png, pFileName);
if(Png.color_type != PNG_TRUECOLOR_ALPHA)
{
dbg_msg("tileset_borderadd", "%s: not an RGBA image", pFileName);
return 1;
}
int w = Png.width;
int h = Png.height;
pBuffer[0] = (CPixel*)mem_alloc(w*h*sizeof(CPixel), 1);
pBuffer[1] = (CPixel*)mem_alloc((w+16*4)*(h+16*4)*sizeof(CPixel), 1);
png_get_data(&Png, (unsigned char *)pBuffer[0]);
png_close_file(&Png);
TilesetBorderadd(w, h, pBuffer[0], pBuffer[1]);
// save here
png_open_file_write(&Png, pFileName);
png_set_data(&Png, w + 16 * 4, h + 16 * 4, 8, PNG_TRUECOLOR_ALPHA, (unsigned char *)pBuffer[1]);
png_close_file(&Png);
return 0;
}
int LoadPNG(CImageInfo *pImg, const char *pFilename)
{
unsigned char *pBuffer;
png_t Png;
int Error = png_open_file(&Png, pFilename);
if(Error != PNG_NO_ERROR)
{
dbg_msg("map_replace_image", "failed to open image file. filename='%s'", pFilename);
if(Error != PNG_FILE_ERROR)
png_close_file(&Png);
return 0;
}
if(Png.depth != 8 || (Png.color_type != PNG_TRUECOLOR && Png.color_type != PNG_TRUECOLOR_ALPHA) || Png.width > (2<<12) || Png.height > (2<<12))
{
dbg_msg("map_replace_image", "invalid image format. filename='%s'", pFilename);
png_close_file(&Png);
return 0;
}
pBuffer = (unsigned char *)malloc(Png.width * Png.height * Png.bpp);
png_get_data(&Png, pBuffer);
png_close_file(&Png);
pImg->m_Width = Png.width;
pImg->m_Height = Png.height;
if(Png.color_type == PNG_TRUECOLOR)
pImg->m_Format = CImageInfo::FORMAT_RGB;
else if(Png.color_type == PNG_TRUECOLOR_ALPHA)
pImg->m_Format = CImageInfo::FORMAT_RGBA;
pImg->m_pData = pBuffer;
return 1;
}
int CModAPI_ModCreator::AddImage(IStorage* pStorage, const char* pFilename)
{
CModAPI_ModItem_Image Image;
char aCompleteFilename[512];
unsigned char *pBuffer;
png_t Png; // ignore_convention
// open file for reading
png_init(0,0); // ignore_convention
IOHANDLE File = pStorage->OpenFile(pFilename, IOFLAG_READ, IStorage::TYPE_ALL, aCompleteFilename, sizeof(aCompleteFilename));
if(File)
{
io_close(File);
}
else
{
dbg_msg("mod", "failed to open file. filename='%s'", pFilename);
return -1;
}
int Error = png_open_file(&Png, aCompleteFilename); // ignore_convention
if(Error != PNG_NO_ERROR)
{
dbg_msg("mod", "failed to open file. filename='%s'", aCompleteFilename);
if(Error != PNG_FILE_ERROR)
{
png_close_file(&Png); // ignore_convention
}
return -1;
}
if(Png.depth != 8 || (Png.color_type != PNG_TRUECOLOR && Png.color_type != PNG_TRUECOLOR_ALPHA) || Png.width > (2<<12) || Png.height > (2<<12)) // ignore_convention
{
dbg_msg("mod", "invalid format. filename='%s'", aCompleteFilename);
png_close_file(&Png); // ignore_convention
return -1;
}
pBuffer = (unsigned char *)mem_alloc(Png.width * Png.height * Png.bpp, 1); // ignore_convention
png_get_data(&Png, pBuffer); // ignore_convention
png_close_file(&Png); // ignore_convention
Image.m_Id = m_Images.size();
Image.m_Width = Png.width; // ignore_convention
Image.m_Height = Png.height; // ignore_convention
if(Png.color_type == PNG_TRUECOLOR) // ignore_convention
Image.m_Format = CImageInfo::FORMAT_RGB;
else if(Png.color_type == PNG_TRUECOLOR_ALPHA) // ignore_convention
Image.m_Format = CImageInfo::FORMAT_RGBA;
m_Images.add(Image);
m_ImagesData.add(pBuffer);
return Image.m_Id;
}
int open_png(png_file* file, const char* path) {
int r;
r = png_open_file(&file->png_obj, path);
png_write_error(r);
if( r >= PNG_NO_ERROR ) {
file->data = (unsigned char*)malloc(file->png_obj.width*file->png_obj.height*file->png_obj.bpp);
r = png_get_data(&file->png_obj, file->data);
png_write_error(r);
file->is_open = 1;
}
return r;
}
int CGraphics_OpenGL::LoadPNG(CImageInfo *pImg, const char *pFilename, int StorageType)
{
char aCompleteFilename[512];
unsigned char *pBuffer;
png_t Png; // ignore_convention
// open file for reading
png_init(0,0); // ignore_convention
IOHANDLE File = m_pStorage->OpenFile(pFilename, IOFLAG_READ, StorageType, aCompleteFilename, sizeof(aCompleteFilename));
if(File)
io_close(File);
else
{
dbg_msg("game/png", "failed to open file. filename='%s'", pFilename);
return 0;
}
int Error = png_open_file(&Png, aCompleteFilename); // ignore_convention
if(Error != PNG_NO_ERROR)
{
dbg_msg("game/png", "failed to open file. filename='%s'", aCompleteFilename);
if(Error != PNG_FILE_ERROR)
png_close_file(&Png); // ignore_convention
return 0;
}
if(Png.depth != 8 || (Png.color_type != PNG_TRUECOLOR && Png.color_type != PNG_TRUECOLOR_ALPHA)) // ignore_convention
{
dbg_msg("game/png", "invalid format. filename='%s'", aCompleteFilename);
png_close_file(&Png); // ignore_convention
return 0;
}
pBuffer = (unsigned char *)mem_alloc(Png.width * Png.height * Png.bpp, 1); // ignore_convention
png_get_data(&Png, pBuffer); // ignore_convention
png_close_file(&Png); // ignore_convention
pImg->m_Width = Png.width; // ignore_convention
pImg->m_Height = Png.height; // ignore_convention
if(Png.color_type == PNG_TRUECOLOR) // ignore_convention
pImg->m_Format = CImageInfo::FORMAT_RGB;
else if(Png.color_type == PNG_TRUECOLOR_ALPHA) // ignore_convention
pImg->m_Format = CImageInfo::FORMAT_RGBA;
pImg->m_pData = pBuffer;
return 1;
}
int DilateFile(const char *pFileName)
{
png_t Png;
CPixel *pBuffer[3] = {0,0,0};
png_init(0, 0);
png_open_file(&Png, pFileName);
if(Png.color_type != PNG_TRUECOLOR_ALPHA)
{
dbg_msg("dilate", "%s: not an RGBA image", pFileName);
return 1;
}
pBuffer[0] = (CPixel*)mem_alloc(Png.width*Png.height*sizeof(CPixel), 1);
pBuffer[1] = (CPixel*)mem_alloc(Png.width*Png.height*sizeof(CPixel), 1);
pBuffer[2] = (CPixel*)mem_alloc(Png.width*Png.height*sizeof(CPixel), 1);
png_get_data(&Png, (unsigned char *)pBuffer[0]);
png_close_file(&Png);
int w = Png.width;
int h = Png.height;
Dilate(w, h, pBuffer[0], pBuffer[1]);
for(int i = 0; i < 5; i++)
{
Dilate(w, h, pBuffer[1], pBuffer[2]);
Dilate(w, h, pBuffer[2], pBuffer[1]);
}
CopyAlpha(w, h, pBuffer[0], pBuffer[1]);
// save here
png_open_file_write(&Png, pFileName);
png_set_data(&Png, w, h, 8, PNG_TRUECOLOR_ALPHA, (unsigned char *)pBuffer[1]);
png_close_file(&Png);
return 0;
}