void BitmapImage::checkForSolidColor()
{
m_checkedForSolidColor = true;
if (frameCount() > 1) {
m_isSolidColor = false;
return;
}
CGImageRef image = frameAtIndex(0);
// Currently we only check for solid color in the important special case of a 1x1 image.
if (image && CGImageGetWidth(image) == 1 && CGImageGetHeight(image) == 1) {
unsigned char pixel[4]; // RGBA
RetainPtr<CGContextRef> bmap(AdoptCF, CGBitmapContextCreate(pixel, 1, 1, 8, sizeof(pixel), deviceRGBColorSpaceRef(),
kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big));
if (!bmap)
return;
GraphicsContext(bmap.get()).setCompositeOperation(CompositeCopy);
CGRect dst = { {0, 0}, {1, 1} };
CGContextDrawImage(bmap.get(), dst, image);
if (pixel[3] == 0)
m_solidColor = Color(0, 0, 0, 0);
else
m_solidColor = Color(pixel[0] * 255 / pixel[3], pixel[1] * 255 / pixel[3], pixel[2] * 255 / pixel[3], pixel[3]);
m_isSolidColor = true;
}
}
void BitmapImage::checkForSolidColor()
{
m_checkedForSolidColor = true;
if (frameCount() > 1)
m_isSolidColor = false;
else {
CGImageRef image = frameAtIndex(0);
// Currently we only check for solid color in the important special case of a 1x1 image.
if (image && CGImageGetWidth(image) == 1 && CGImageGetHeight(image) == 1) {
unsigned char pixel[4]; // RGBA
CGColorSpaceRef space = CGColorSpaceCreateDeviceRGB();
CGContextRef bmap = CGBitmapContextCreate(pixel, 1, 1, 8, sizeof(pixel), space,
kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big);
if (bmap) {
GraphicsContext(bmap).setCompositeOperation(CompositeCopy);
CGRect dst = { {0, 0}, {1, 1} };
CGContextDrawImage(bmap, dst, image);
if (pixel[3] == 0)
m_solidColor = Color(0, 0, 0, 0);
else
m_solidColor = Color(pixel[0] * 255 / pixel[3], pixel[1] * 255 / pixel[3], pixel[2] * 255 / pixel[3], pixel[3]);
m_isSolidColor = true;
CFRelease(bmap);
}
CFRelease(space);
}
}
}
bool createWindow(Window::Ptr window)
{
if (window->getState() != Window::NEW) {
return false;
}
int id = glutCreateWindow(window->getName().c_str());
windows.insert(WindowsBimap::value_type(id, window));
windowGraphicsContexts.insert(std::make_pair(window, GraphicsContext()));
glutDisplayFunc(&display);
glutReshapeFunc(&reshape);
glutKeyboardFunc(&keyboard);
glutKeyboardUpFunc(&keyboardUp);
glutMouseFunc(&mouse);
glutMotionFunc(&motion);
glutPassiveMotionFunc(&passiveMotion);
glutSpecialFunc(&special);
glutSpecialUpFunc(&specialUp);
glutHideWindow();
window->created();
return true;
}
static void patternCallback(void* info, CGContextRef context)
{
CGImageRef platformImage = static_cast<CGImageRef>(info);
if (!platformImage)
return;
CGRect rect = GraphicsContext(context).roundToDevicePixels(
FloatRect(0, 0, CGImageGetWidth(platformImage), CGImageGetHeight(platformImage)));
CGContextDrawImage(context, rect, platformImage);
}
static void drawPatternCallback(void* info, CGContextRef context)
{
CGImageRef image = (CGImageRef)info;
CGFloat height = CGImageGetHeight(image);
#if PLATFORM(IOS)
CGContextScaleCTM(context, 1, -1);
CGContextTranslateCTM(context, 0, -height);
#endif
CGContextDrawImage(context, GraphicsContext(context).roundToDevicePixels(FloatRect(0, 0, CGImageGetWidth(image), height)), image);
}
bool GraphicsSystem::CreateWindow()
{
DuskBenchStart();
CreateSFMLWindow();
mp_GraphicsContext.reset(New GraphicsContext(m_SfWindow));
Program::Inst()->AddEventListener(Program::EvtUpdate, this, &GraphicsSystem::OnUpdate);
DuskBenchEnd("GraphicsSystem::CreateWindow");
return true;
}
void BitmapImage::checkForSolidColor()
{
m_checkedForSolidColor = true;
m_isSolidColor = false;
if (frameCount() > 1)
return;
if (!haveFrameAtIndex(0)) {
IntSize size = m_source.frameSizeAtIndex(0, 0);
if (size.width() != 1 || size.height() != 1)
return;
if (!ensureFrameIsCached(0))
return;
}
CGImageRef image = nullptr;
if (m_frames.size())
image = m_frames[0].m_frame;
if (!image)
return;
// Currently we only check for solid color in the important special case of a 1x1 image.
if (CGImageGetWidth(image) == 1 && CGImageGetHeight(image) == 1) {
unsigned char pixel[4]; // RGBA
RetainPtr<CGContextRef> bitmapContext = adoptCF(CGBitmapContextCreate(pixel, 1, 1, 8, sizeof(pixel), deviceRGBColorSpaceRef(),
kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big));
if (!bitmapContext)
return;
GraphicsContext(bitmapContext.get()).setCompositeOperation(CompositeCopy);
CGRect destinationRect = CGRectMake(0, 0, 1, 1);
CGContextDrawImage(bitmapContext.get(), destinationRect, image);
if (!pixel[3])
m_solidColor = Color(0, 0, 0, 0);
else
m_solidColor = Color(pixel[0] * 255 / pixel[3], pixel[1] * 255 / pixel[3], pixel[2] * 255 / pixel[3], pixel[3]);
m_isSolidColor = true;
}
}
void BitmapImage::checkForSolidColor()
{
m_checkedForSolidColor = true;
if (frameCount() > 1) {
m_isSolidColor = false;
return;
}
#if !PLATFORM(IOS)
CGImageRef image = frameAtIndex(0);
#else
// Note, checkForSolidColor() may be called from frameAtIndex(). On iOS frameAtIndex() gets passed a scaleHint
// argument which it uses to tell CG to create a scaled down image. Since we don't know the scaleHint here, if
// we call frameAtIndex() again, we would pass it the default scale of 1 and would end up recreating the image.
// So we do a quick check and call frameAtIndex(0) only if we haven't yet created an image.
CGImageRef image = nullptr;
if (m_frames.size())
image = m_frames[0].m_frame;
if (!image)
image = frameAtIndex(0);
#endif
// Currently we only check for solid color in the important special case of a 1x1 image.
if (image && CGImageGetWidth(image) == 1 && CGImageGetHeight(image) == 1) {
unsigned char pixel[4]; // RGBA
RetainPtr<CGContextRef> bitmapContext = adoptCF(CGBitmapContextCreate(pixel, 1, 1, 8, sizeof(pixel), deviceRGBColorSpaceRef(),
kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big));
if (!bitmapContext)
return;
GraphicsContext(bitmapContext.get()).setCompositeOperation(CompositeCopy);
CGRect destinationRect = CGRectMake(0, 0, 1, 1);
CGContextDrawImage(bitmapContext.get(), destinationRect, image);
if (!pixel[3])
m_solidColor = Color(0, 0, 0, 0);
else
m_solidColor = Color(pixel[0] * 255 / pixel[3], pixel[1] * 255 / pixel[3], pixel[2] * 255 / pixel[3], pixel[3]);
m_isSolidColor = true;
}
}
static void drawPatternCallback(void* info, CGContextRef context)
{
CGImageRef image = (CGImageRef)info;
CGContextDrawImage(context, GraphicsContext(context).roundToDevicePixels(FloatRect(0, 0, CGImageGetWidth(image), CGImageGetHeight(image))), image);
}
