#include <Application.h>
#include <Bitmap.h>
#include <View.h>
#include <Window.h>
#include <stdio.h>
#include <string.h>
#ifdef DUMP_BLENDING_RESULTS
#include <BitmapStream.h>
#include <File.h>
#include <TranslatorRoster.h>
#include <String.h>
#endif
uint32 kBitmapBits[] = {
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00111111,
0x00777777, 0x00000000, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00111111,
0x00777777, 0x00444444, 0x00000000, 0x00000000, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00000000, 0x00000000, 0x00bb0000, 0x00ffffff, 0x00000000,
0x00444444, 0x00777777, 0x00111111, 0x00000000, 0x00000000, 0x00000000,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00000000, 0x00bb0000, 0x00ee0000, 0x00ee0000,
0x00ff0000, 0x00ffffff, 0x00ee0000, 0x00111111, 0x00000000, 0x00000000,
0x00000000, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00bb0000, 0x00ee0000,
0x00ee0000, 0x00ff0000, 0x00ffffff, 0x00ee0000, 0x00ee0000, 0x00ee0000,
0x00000000, 0x00000000, 0x00000000, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00bb0000,
0x00ee0000, 0x00ee0000, 0x00ff0000, 0x00ffffff, 0x00ee0000, 0x00ee0000,
0x00ee0000, 0x00cc0000, 0x00000000, 0x00000000, 0x00000000, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000,
0x00bb0000, 0x00ee0000, 0x00ee0000, 0x00ff0000, 0x00ffffff, 0x00ee0000,
0x00ee0000, 0x00ee0000, 0x00cc0000, 0x00990000, 0x00990000, 0x00000000,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00000000, 0x00ee0000, 0x00ee0000, 0x00ee0000, 0x00ffffff,
0x00ee0000, 0x00ff0000, 0x00cc0000, 0x00cc0000, 0x00990000, 0x00bb0000,
0x00880000, 0x00000000, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00000000, 0x00ee0000, 0x00ee0000, 0x00ee0000,
0x00ffffff, 0x00ee0000, 0x00ff0000, 0x00cc0000, 0x00cc0000, 0x00990000,
0x00bb0000, 0x00880000, 0x00000000, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00ee0000, 0x00ee0000,
0x00ee0000, 0x00ffffff, 0x00ee0000, 0x00ff0000, 0x00cc0000, 0x00cc0000,
0x00990000, 0x00bb0000, 0x00880000, 0x00990000, 0x00000000, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00ee0000,
0x00ee0000, 0x00ee0000, 0x00ffffff, 0x00ee0000, 0x00ff0000, 0x00cc0000,
0x00cc0000, 0x00990000, 0x00bb0000, 0x00880000, 0x00990000, 0x00000000,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00000000, 0x00ee0000, 0x00ff0000, 0x00ffffff, 0x00ee0000, 0x00ee0000,
0x00ee0000, 0x00cc0000, 0x00990000, 0x00bb0000, 0x00880000, 0x00880000,
0x00000000, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00000000, 0x00ee0000, 0x00ee0000, 0x00ffffff, 0x00ee0000,
0x00ff0000, 0x00cc0000, 0x00cc0000, 0x00990000, 0x00bb0000, 0x00880000,
0x00990000, 0x00000000, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00ee0000, 0x00ffffff,
0x00ee0000, 0x00ff0000, 0x00cc0000, 0x00cc0000, 0x00990000, 0x00bb0000,
0x00880000, 0x00000000, 0x00000000, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00ff6666,
0x00ff6666, 0x00ff6666, 0x00ff6666, 0x00880000, 0x00000000, 0x00ee0000,
0x00ff6666, 0x00000000, 0x00ee0000, 0x00ee0000, 0x00bb0000, 0x00bb0000,
0x00bb0000, 0x00880000, 0x00000000, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000,
0x00ee0000, 0x00ff0000, 0x00ee0000, 0x00880000, 0x00990000, 0x00000000,
0x00ee0000, 0x00ff6666, 0x00880000, 0x00000000, 0x00cc0000, 0x00990000,
0x00bb0000, 0x00880000, 0x00990000, 0x00000000, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00000000, 0x00ee0000, 0x00ff0000, 0x00ee0000, 0x00880000, 0x00990000,
0x00000000, 0x00ee0000, 0x00ff6666, 0x00880000, 0x00000000, 0x00990000,
0x00880000, 0x00880000, 0x00990000, 0x00000000, 0x00000000, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00ff6666, 0x00880000, 0x00000000,
0x00990000, 0x00880000, 0x00880000, 0x00000000, 0x00000000, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00000000, 0x00444444, 0x00ff6666, 0x00880000,
0x00000000, 0x00990000, 0x00880000, 0x00880000, 0x00000000, 0x00ee0000,
0x00000000, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00ff6666,
0x00880000, 0x00000000, 0x00000000, 0x00000000, 0x00990000, 0x00000000,
0x00880000, 0x00ee0000, 0x00000000, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00000000,
0x00ff9900, 0x00000000, 0x00000000, 0x00000000, 0x00444444, 0x00000000,
0x00000000, 0x00880000, 0x00990000, 0x00ee0000, 0x00000000, 0x00777477,
0x00777477, 0x00777477, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000,
0x00ff9900, 0x00ff9900, 0x00ffff00, 0x00ffff00, 0x00ffff00, 0x00000000,
0x00444444, 0x00000000, 0x00000000, 0x00880000, 0x00ff0000, 0x00ee0000,
0x00000000, 0x00777477, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477, 0x00777477,
0x00000000, 0x00ff9900, 0x00ff9900, 0x00ffff00, 0x00ffff00, 0x00ffff00,
0x00ff9900, 0x00000000, 0x00000000, 0x00777477, 0x00000000, 0x00ee0000,
0x00ff0000, 0x00880000, 0x00000000, 0x00777477, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00000000, 0x00ff9900, 0x00ff9900, 0x00ffff00,
0x00ffff00, 0x00ff9900, 0x00000000, 0x00777777, 0x00777777, 0x00777777,
0x00000000, 0x00ee0000, 0x00990000, 0x00000000, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00ff9900, 0x00ff9900,
0x00ffff00, 0x00ff9900, 0x00ff9900, 0x00ff9900, 0x00000000, 0x00777777,
0x00777777, 0x00777777, 0x00000000, 0x00880000, 0x00000000, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000,
0x00ff9900, 0x00ffff00, 0x00ff9900, 0x00ff9900, 0x00ff9900, 0x00000000,
0x00777477, 0x00777477, 0x00777477, 0x00777777, 0x00000000, 0x00000000,
0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00000000, 0x00ff9900, 0x00ffff00, 0x00ff9900, 0x00ff9900, 0x00000000,
0x00000000, 0x00777477, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00000000, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00000000, 0x00ffff00, 0x00ff9900, 0x00000000,
0x00000000, 0x00777477, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00000000,
0x00000000, 0x00777477, 0x00777477, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777477,
0x00777477, 0x00777477, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777777, 0x00777777, 0x00777777,
0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777777, 0x00777777,
0x00777777, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
0x00777477, 0x00777477, 0x00777477, 0x00777477
};
class DrawingModeView : public BView {
public:
DrawingModeView(BRect frame);
virtual ~DrawingModeView();
virtual void Draw(BRect updateRect);
private:
BBitmap * fBitmap;
BBitmap * fTriangleLeft;
BBitmap * fTriangleRight;
};
class DrawingModeWindow : public BWindow {
public:
DrawingModeWindow(BRect frame);
private:
DrawingModeView * fView;
};
class DrawingModeApp : public BApplication {
public:
DrawingModeApp();
private:
DrawingModeWindow * fWindow;
};
DrawingModeApp::DrawingModeApp()
: BApplication("application/x.vnd-Haiku.DrawingModeTest")
{
fWindow = new DrawingModeWindow(BRect(200, 200, 760, 800));
fWindow->Show();
}
DrawingModeWindow::DrawingModeWindow(BRect frame)
: BWindow(frame, "Drawing Modes Test", B_TITLED_WINDOW,
B_QUIT_ON_WINDOW_CLOSE)
{
fView = new DrawingModeView(frame.OffsetToSelf(0, 0));
AddChild(fView);
fView->SetViewColor(255, 203, 0);
fView->SetDrawingMode(B_OP_OVER);
}
DrawingModeView::DrawingModeView(BRect frame)
: BView(frame, "DrawingModeView", B_FOLLOW_ALL, B_WILL_DRAW),
fBitmap(NULL)
{
fBitmap = new BBitmap(BRect(0, 0, 31, 31), B_RGB32);
memcpy(fBitmap->Bits(), kBitmapBits, fBitmap->BitsLength());
uint32 triangleLeftBits[32 * 32] = { 0 };
uint32 triangleRightBits[32 * 32] = { 0 };
for(int y = 0; y < 32; ++y) {
for(int x = 0; x < 32; ++x) {
if(x < 32 - y) {
triangleLeftBits[y * 32 + x] = 0xffff0000;
}
if(x >= y) {
triangleRightBits[y * 32 + x] = 0xff0000ff;
}
}
}
fTriangleLeft = new BBitmap(BRect(0, 0, 31, 31), B_RGBA32);
memcpy(fTriangleLeft->Bits(), triangleLeftBits,
fTriangleLeft->BitsLength());
fTriangleRight = new BBitmap(BRect(0, 0, 31, 31), B_RGBA32);
memcpy(fTriangleRight->Bits(), triangleRightBits,
fTriangleRight->BitsLength());
}
DrawingModeView::~DrawingModeView()
{
delete fBitmap;
delete fTriangleLeft;
delete fTriangleRight;
}
void
DrawingModeView::Draw(BRect updateRect)
{
SetDrawingMode(B_OP_COPY);
SetLowColor(ViewColor());
FillRect(Bounds(), B_SOLID_LOW);
SetLowColor(255, 0, 0);
SetHighColor(0, 0, 255);
BRect bitmapBounds = fBitmap->Bounds();
int32 imageHeight = bitmapBounds.IntegerHeight() + 10;
int32 imageWidth = bitmapBounds.IntegerWidth() + 10;
BRect triangleBounds = fTriangleLeft->Bounds();
int32 triangleHeight = triangleBounds.IntegerHeight() + 10;
int32 triangleWidth = triangleBounds.IntegerWidth() + 10;
#define MODE(m) { m, #m }
struct {
drawing_mode mode;
const char *name;
} drawingModes[] = {
MODE(B_OP_COPY),
MODE(B_OP_OVER),
MODE(B_OP_ERASE),
MODE(B_OP_INVERT),
MODE(B_OP_SELECT),
MODE(B_OP_ADD),
MODE(B_OP_SUBTRACT),
MODE(B_OP_BLEND),
MODE(B_OP_MIN),
MODE(B_OP_MAX)
};
struct {
alpha_function mode;
const char *name;
} blendingModes[] = {
MODE(B_ALPHA_COMPOSITE_SOURCE_OVER),
MODE(B_ALPHA_COMPOSITE_SOURCE_IN),
MODE(B_ALPHA_COMPOSITE_SOURCE_OUT),
MODE(B_ALPHA_COMPOSITE_SOURCE_ATOP),
MODE(B_ALPHA_COMPOSITE_DESTINATION_OVER),
MODE(B_ALPHA_COMPOSITE_DESTINATION_IN),
MODE(B_ALPHA_COMPOSITE_DESTINATION_OUT),
MODE(B_ALPHA_COMPOSITE_DESTINATION_ATOP),
MODE(B_ALPHA_COMPOSITE_XOR),
MODE(B_ALPHA_COMPOSITE_CLEAR),
MODE(B_ALPHA_COMPOSITE_DIFFERENCE),
MODE(B_ALPHA_COMPOSITE_LIGHTEN),
MODE(B_ALPHA_COMPOSITE_DARKEN)
};
int32 modeCount = sizeof(drawingModes) / sizeof(drawingModes[0]);
for (int32 i = 0; i < modeCount; i++) {
if (drawingModes[i].mode == B_OP_SELECT) {
SetDrawingMode(B_OP_COPY);
FillRect(BRect(0, imageHeight * i, imageWidth * 2 - 10,
imageHeight * i + bitmapBounds.Height() / 2), B_SOLID_LOW);
FillRect(BRect(0, imageHeight * i + bitmapBounds.Height() / 2,
imageWidth * 2 - 10, imageHeight * i + bitmapBounds.Height()),
B_SOLID_HIGH);
} else if (drawingModes[i].mode == B_OP_MAX
|| drawingModes[i].mode == B_OP_MIN) {
SetDrawingMode(B_OP_COPY);
SetHighColor(255, 255, 255);
FillRect(BRect(0, imageHeight * i, imageWidth * 2 - 10,
imageHeight * i + bitmapBounds.Height() / 3), B_SOLID_HIGH);
SetHighColor(128, 128, 128);
FillRect(BRect(0, imageHeight * i + bitmapBounds.Height() / 3,
imageWidth * 2 - 10, imageHeight * i + bitmapBounds.Height()),
B_SOLID_HIGH);
SetHighColor(0, 0, 0);
FillRect(BRect(0, imageHeight * i + bitmapBounds.Height() / 3 * 2,
imageWidth * 2 - 10, imageHeight * i + bitmapBounds.Height()),
B_SOLID_HIGH);
SetHighColor(0, 0, 255);
}
SetDrawingMode(drawingModes[i].mode);
DrawBitmap(fBitmap, BPoint(0, imageHeight * i));
FillRect(bitmapBounds.OffsetToCopy(imageWidth,
imageHeight * i), B_MIXED_COLORS);
SetDrawingMode(B_OP_OVER);
DrawString(drawingModes[i].name, BPoint(imageWidth * 2,
imageHeight * i + 20));
}
#ifdef DUMP_BLENDING_RESULTS
BTranslatorRoster* roster = BTranslatorRoster::Default();
if (roster == NULL)
abort();
translator_id* outId;
int32 outCount;
translation_format pngFormat;
roster->GetAllTranslators(&outId, &outCount);
for(int32 i = 0; i < outCount; ++i) {
const translation_format* formats;
int32 formatCount;
roster->GetOutputFormats(outId[i], &formats, &formatCount);
for(int32 j = 0; j < formatCount; ++j) {
if(strcmp(formats[j].MIME, "image/png") == 0) {
pngFormat = formats[j];
}
}
}
status_t r = B_OK;
{
BFile file("DESTINATION.png",
B_WRITE_ONLY | B_CREATE_FILE | B_ERASE_FILE);
BBitmapStream stream(fTriangleLeft);
r = roster->Translate(&stream, NULL, NULL, &file, pngFormat.type);
if(r != B_OK)
fprintf(stderr, "Failed to save PNG file for destination\n");
stream.DetachBitmap(&fTriangleLeft);
}
{
BFile file("SOURCE.png", B_WRITE_ONLY | B_CREATE_FILE | B_ERASE_FILE);
BBitmapStream stream(fTriangleRight);
r = roster->Translate(&stream, NULL, NULL, &file, pngFormat.type);
if(r != B_OK)
fprintf(stderr, "Failed to save PNG file for source\n");
stream.DetachBitmap(&fTriangleRight);
}
#endif
modeCount = sizeof(blendingModes) / sizeof(blendingModes[0]);
const int columnOffset = 180;
BView *blitter = new BView(BRect(0, 0, 31, 31),
"blitter", B_FOLLOW_ALL, B_WILL_DRAW);
BBitmap *resultBitmap = new BBitmap(BRect(0, 0, 31, 31),
B_RGBA32, true, false);
resultBitmap->AddChild(blitter);
for (int32 i = 0; i < modeCount; i++) {
resultBitmap->Lock();
blitter->SetDrawingMode(B_OP_COPY);
blitter->SetHighColor(0, 0, 0, 0);
blitter->FillRect(resultBitmap->Bounds());
blitter->DrawBitmap(fTriangleLeft, B_ORIGIN);
blitter->SetDrawingMode(B_OP_ALPHA);
blitter->SetBlendingMode(B_PIXEL_ALPHA, blendingModes[i].mode);
blitter->DrawBitmap(fTriangleRight, B_ORIGIN);
resultBitmap->Unlock();
#ifdef DUMP_BLENDING_RESULTS
BBitmapStream stream(resultBitmap);
BString fileName(blendingModes[i].name);
BFile file(fileName.Append(".png"),
B_WRITE_ONLY | B_CREATE_FILE | B_ERASE_FILE);
r = roster->Translate(&stream, NULL, NULL, &file, pngFormat.type);
if(r != B_OK) {
fprintf(stderr, "Failed to save PNG file for %s\n",
blendingModes[i].name);
}
stream.DetachBitmap(&resultBitmap);
#endif
SetDrawingMode(B_OP_ALPHA);
SetBlendingMode(B_PIXEL_ALPHA, B_ALPHA_OVERLAY);
DrawBitmap(resultBitmap, BPoint(columnOffset, triangleHeight * i));
SetDrawingMode(B_OP_OVER);
DrawString(blendingModes[i].name, BPoint(columnOffset + triangleWidth,
triangleHeight * i + 20));
}
resultBitmap->Lock();
resultBitmap->RemoveChild(blitter);
delete resultBitmap;
delete blitter;
}
int
main(int argc, const char *argv[])
{
DrawingModeApp *app = new DrawingModeApp();
app->Run();
delete app;
return 0;
}
