void Store::addProduct(Product* newProduct)
{
if (hasProduct(newProduct))
return;
Product** tempShowcase = copyContentOfShowcase(_productCount+1, false);
delete[] _showcase;
_showcase = tempShowcase;
_showcase[_productCount] = newProduct;
_productCount++;
}
void Store::addProduct(Product* newProduct)
{
if (hasProduct(newProduct))
return;
Product** tempShowcase = new Product*[_productCount + 1];
for (ProductCountInStoreType iter = 0; iter < _productCount; iter++)
{
tempShowcase[iter] = _showcase[iter];
}
delete[] _showcase;
_showcase = tempShowcase;
_showcase[_productCount] = newProduct;
_productCount++;
}
ImageReader::ImageHandle ImageReader::getImage(text::string_hash id)
{
if (hasProduct(id))
return getProduct(id);
// Image is not in cache, load it.
const std::string& url = text::get(id);
INFO_OUT(TAG, "Loading image %s", url.c_str());
FILE* fp = fopen(url.c_str(), "rb");
if (fp == NULL)
throw ResourceException("Cannot open file.");
if ( !isPNGFile(fp) )
{
fclose(fp);
throw ResourceException("File is not PNG.");
}
png_structp pngStruct = png_create_read_struct(PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr);
if (!pngStruct)
{
fclose(fp);
throw ResourceException("[LIBPNG] Error creating read struct.");
}
png_infop pngInfo = png_create_info_struct(pngStruct);
if (!pngInfo)
{
png_destroy_read_struct(&pngStruct, nullptr, nullptr);
fclose(fp);
throw ResourceException("[LIBPNG] Error creating info struct.");
}
if ( setjmp(png_jmpbuf(pngStruct)) )
{
png_destroy_read_struct(&pngStruct, &pngInfo, nullptr);
fclose(fp);
throw ResourceException("Error while reading file.");
}
png_init_io(pngStruct, fp);
png_set_sig_bytes(pngStruct, pngHeaderCheckSize);
// FIXME Write directly to buffer, don't copy.
png_read_png(pngStruct,
pngInfo,
PNG_TRANSFORM_STRIP_16 | PNG_TRANSFORM_PACKING | PNG_TRANSFORM_EXPAND,
NULL);
struct
{
png_uint_32 width;
png_uint_32 height;
png_byte bitsPerPixel;
png_byte colorType;
png_size_t rowSize;
} imageData;
imageData.width = png_get_image_width(pngStruct, pngInfo);
imageData.height = png_get_image_height(pngStruct, pngInfo);
imageData.bitsPerPixel = png_get_bit_depth(pngStruct, pngInfo);
imageData.colorType = png_get_color_type(pngStruct, pngInfo);
imageData.rowSize = png_get_rowbytes(pngStruct, pngInfo);
// FIXME Let PixelFormat decide what format is suitable.
gr::PixelFormat fmt;
if (imageData.colorType == PNG_COLOR_TYPE_RGBA)
fmt = gr::PixelFormat::R8G8B8A8;
else
fmt = gr::PixelFormat::R8G8B8;
unsigned char* pixels = new unsigned char[imageData.rowSize * imageData.height];
png_bytepp rowPointers = png_get_rows(pngStruct, pngInfo);
for (unsigned int i = 0; i < imageData.height; i++)
memcpy(pixels + (imageData.rowSize * (imageData.height - 1 - i)),
rowPointers[i],
imageData.rowSize);
png_destroy_read_struct(&pngStruct, &pngInfo, NULL);
fclose(fp);
return addProduct(id, gr::Image((unsigned int) imageData.width,
(unsigned int) imageData.height,
fmt,
1u,
pixels));
}
