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#include "cru/osx/graphics/quartz/ImageFactory.h"
#include "cru/common/Exception.h"
#include "cru/osx/graphics/quartz/Convert.h"
#include "cru/osx/graphics/quartz/Image.h"
#include "cru/platform/graphics/Image.h"
#include <ImageIO/ImageIO.h>
namespace cru::platform::graphics::osx::quartz {
QuartzImageFactory::QuartzImageFactory(IGraphicsFactory* graphics_factory)
: OsxQuartzResource(graphics_factory) {}
QuartzImageFactory::~QuartzImageFactory() {}
std::unique_ptr<IImage> QuartzImageFactory::DecodeFromStream(
io::Stream* stream) {
CGDataProviderRef data_provider = ConvertStreamToCGDataProvider(stream);
CGImageSourceRef image_source =
CGImageSourceCreateWithDataProvider(data_provider, nullptr);
CGImageRef cg_image =
CGImageSourceCreateImageAtIndex(image_source, 0, nullptr);
CFRelease(image_source);
CGDataProviderRelease(data_provider);
return std::unique_ptr<IImage>(
new QuartzImage(GetGraphicsFactory(), this, cg_image, true));
}
std::unique_ptr<IImage> QuartzImageFactory::CreateBitmap(int width,
int height) {
if (width <= 0) throw Exception(u"Image width should be greater than 0.");
if (height <= 0) throw Exception(u"Image height should be greater than 0.");
CGColorSpaceRef color_space = CGColorSpaceCreateDeviceRGB();
auto cg_image = CGImageCreate(width, height, 8, 32, 4 * width, color_space,
kCGImageAlphaLast, nullptr, nullptr, true,
kCGRenderingIntentDefault);
CGColorSpaceRelease(color_space);
return std::unique_ptr<IImage>(
new QuartzImage(GetGraphicsFactory(), this, cg_image, true));
}
} // namespace cru::platform::graphics::osx::quartz
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