QT_BEGIN_NAMESPACE
QGLFormat QGLFormat::fromPlatformWindowFormat(const QPlatformWindowFormat &format)
{
QGLFormat retFormat;
retFormat.setAccum(format.accum());
if (format.accumBufferSize() >= 0)
retFormat.setAccumBufferSize(format.accumBufferSize());
retFormat.setAlpha(format.alpha());
if (format.alphaBufferSize() >= 0)
retFormat.setAlphaBufferSize(format.alphaBufferSize());
if (format.blueBufferSize() >= 0)
retFormat.setBlueBufferSize(format.blueBufferSize());
retFormat.setDepth(format.depth());
if (format.depthBufferSize() >= 0)
retFormat.setDepthBufferSize(format.depthBufferSize());
retFormat.setDirectRendering(format.directRendering());
retFormat.setDoubleBuffer(format.doubleBuffer());
if (format.greenBufferSize() >= 0)
retFormat.setGreenBufferSize(format.greenBufferSize());
if (format.redBufferSize() >= 0)
retFormat.setRedBufferSize(format.redBufferSize());
retFormat.setRgba(format.rgba());
retFormat.setSampleBuffers(format.sampleBuffers());
retFormat.setSamples(format.sampleBuffers());
retFormat.setStencil(format.stencil());
if (format.stencilBufferSize() >= 0)
retFormat.setStencilBufferSize(format.stencilBufferSize());
retFormat.setStereo(format.stereo());
retFormat.setSwapInterval(format.swapInterval());
return retFormat;
}
QVector<int> qglx_buildSpec(const QPlatformWindowFormat &format, int drawableBit)
{
QVector<int> spec(48);
int i = 0;
spec[i++] = GLX_LEVEL;
spec[i++] = 0;
spec[i++] = GLX_DRAWABLE_TYPE; spec[i++] = drawableBit;
if (format.rgba()) {
spec[i++] = GLX_RENDER_TYPE; spec[i++] = GLX_RGBA_BIT;
spec[i++] = GLX_RED_SIZE; spec[i++] = (format.redBufferSize() == -1) ? 1 : format.redBufferSize();
spec[i++] = GLX_GREEN_SIZE; spec[i++] = (format.greenBufferSize() == -1) ? 1 : format.greenBufferSize();
spec[i++] = GLX_BLUE_SIZE; spec[i++] = (format.blueBufferSize() == -1) ? 1 : format.blueBufferSize();
if (format.alpha()) {
spec[i++] = GLX_ALPHA_SIZE; spec[i++] = (format.alphaBufferSize() == -1) ? 1 : format.alphaBufferSize();
}
if (format.accum()) {
spec[i++] = GLX_ACCUM_RED_SIZE; spec[i++] = (format.accumBufferSize() == -1) ? 1 : format.accumBufferSize();
spec[i++] = GLX_ACCUM_GREEN_SIZE; spec[i++] = (format.accumBufferSize() == -1) ? 1 : format.accumBufferSize();
spec[i++] = GLX_ACCUM_BLUE_SIZE; spec[i++] = (format.accumBufferSize() == -1) ? 1 : format.accumBufferSize();
if (format.alpha()) {
spec[i++] = GLX_ACCUM_ALPHA_SIZE; spec[i++] = (format.accumBufferSize() == -1) ? 1 : format.accumBufferSize();
}
}
} else {
spec[i++] = GLX_RENDER_TYPE; spec[i++] = GLX_COLOR_INDEX_BIT; //I'm really not sure if this works....
spec[i++] = GLX_BUFFER_SIZE; spec[i++] = 8;
}
spec[i++] = GLX_DOUBLEBUFFER; spec[i++] = format.doubleBuffer() ? True : False;
spec[i++] = GLX_STEREO; spec[i++] = format.stereo() ? True : False;
if (format.depth()) {
spec[i++] = GLX_DEPTH_SIZE; spec[i++] = (format.depthBufferSize() == -1) ? 1 : format.depthBufferSize();
}
if (format.stencil()) {
spec[i++] = GLX_STENCIL_SIZE; spec[i++] = (format.stencilBufferSize() == -1) ? 1 : format.stencilBufferSize();
}
if (format.sampleBuffers()) {
spec[i++] = GLX_SAMPLE_BUFFERS_ARB;
spec[i++] = 1;
spec[i++] = GLX_SAMPLES_ARB;
spec[i++] = format.samples() == -1 ? 4 : format.samples();
}
spec[i++] = XNone;
return spec;
}
QPlatformWindowFormat qglx_reducePlatformWindowFormat(const QPlatformWindowFormat &format, bool *reduced)
{
QPlatformWindowFormat retFormat = format;
*reduced = true;
if (retFormat.sampleBuffers()) {
retFormat.setSampleBuffers(false);
} else if (retFormat.stereo()) {
retFormat.setStereo(false);
} else if (retFormat.accum()) {
retFormat.setAccum(false);
}else if (retFormat.stencil()) {
retFormat.setStencil(false);
}else if (retFormat.alpha()) {
retFormat.setAlpha(false);
}else if (retFormat.depth()) {
retFormat.setDepth(false);
}else if (retFormat.doubleBuffer()) {
retFormat.setDoubleBuffer(false);
}else{
*reduced = false;
}
return retFormat;
}