X-Git-Url: http://git.lukelau.me/?p=opengl.git;a=blobdiff_plain;f=image.cpp;fp=image.cpp;h=71114b0d85c8f239800602b3e0e1fcfe0431493b;hp=0000000000000000000000000000000000000000;hb=c44e69ec78367fb2957324026894aef970f2481a;hpb=85f8f7278f24fe73fef1a19174376b155319072f

diff --git a/image.cpp b/image.cpp
new file mode 100644
index 0000000..71114b0
--- /dev/null
+++ b/image.cpp
@@ -0,0 +1,31 @@
+#include "image.hpp"
+
+Image::Image(const std::string &path) {
+	auto provider = CGDataProviderCreateWithFilename(path.c_str());
+	std::ifstream file(path);
+	long magic;
+	file.read((char*)&magic, 8);
+	file.close();
+
+	CGImageRef ref;
+
+	if (magic == 0x0a1a0a0d474e5089) // png magic number
+		ref = CGImageCreateWithPNGDataProvider(provider, nullptr, false, kCGRenderingIntentDefault);
+	else
+		ref = CGImageCreateWithJPEGDataProvider(provider, nullptr, false, kCGRenderingIntentDefault);
+
+	_width = CGImageGetWidth(ref), _height = CGImageGetHeight(ref);
+
+	dataRef = CGDataProviderCopyData(CGImageGetDataProvider(ref));
+	CGImageRelease(ref);
+
+}
+
+unsigned char *Image::data() {
+	return (unsigned char*) CFDataGetBytePtr(dataRef);
+}
+
+GLfloat Image::width() const { return _width; }
+GLfloat Image::height() const { return _height; }
+
+Image::~Image() { CFRelease(dataRef); }