void GLWindow::queryDrawableConfig( DrawableConfig& dc )
{
dc = DrawableConfig();
// GL version
const char* glVersion = (const char*)glGetString( GL_VERSION );
if( !glVersion ) // most likely no context
{
LBWARN << "glGetString(GL_VERSION) returned 0, assuming GL version 1.1"
<< std::endl;
dc.glVersion = 1.1f;
}
else
dc.glVersion = static_cast<float>( std::atof( glVersion ));
if( dc.glVersion >= 3.2f )
{
GLint mask;
EQ_GL_CALL( glGetIntegerv( GL_CONTEXT_PROFILE_MASK, &mask ));
dc.coreProfile = mask & GL_CONTEXT_CORE_PROFILE_BIT;
}
TEST_GLEW_VERSION( 1, 1 );
TEST_GLEW_VERSION( 1, 2 );
TEST_GLEW_VERSION( 1, 3 );
TEST_GLEW_VERSION( 1, 4 );
TEST_GLEW_VERSION( 1, 5 );
TEST_GLEW_VERSION( 2, 0 );
TEST_GLEW_VERSION( 2, 1 );
TEST_GLEW_VERSION( 3, 0 );
TEST_GLEW_VERSION( 3, 1 );
TEST_GLEW_VERSION( 3, 2 );
TEST_GLEW_VERSION( 3, 3 );
TEST_GLEW_VERSION( 4, 0 );
TEST_GLEW_VERSION( 4, 1 );
TEST_GLEW_VERSION( 4, 2 );
TEST_GLEW_VERSION( 4, 3 );
#ifdef GLEW_VERSION_4_5
TEST_GLEW_VERSION( 4, 4 );
TEST_GLEW_VERSION( 4, 5 );
#endif
// Framebuffer capabilities
GLboolean result;
EQ_GL_CALL( glGetBooleanv( GL_STEREO, &result ));
dc.stereo = result;
EQ_GL_CALL( glGetBooleanv( GL_DOUBLEBUFFER, &result ));
dc.doublebuffered = result;
if( dc.coreProfile )
{
if( getFrameBufferObject( ))
{
glGetFramebufferAttachmentParameteriv( GL_FRAMEBUFFER,
GL_DEPTH_STENCIL_ATTACHMENT,
GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE, &dc.stencilBits );
// eat GL error if no stencil attachment; should return '0' bits
// according to spec, but gives GL_INVALID_OPERATION
glGetError();
EQ_GL_CALL( glGetFramebufferAttachmentParameteriv( GL_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0, GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE,
&dc.colorBits ));
EQ_GL_CALL( glGetFramebufferAttachmentParameteriv( GL_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0, GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE,
&dc.alphaBits ));
}
else
{
EQ_GL_CALL( glGetFramebufferAttachmentParameteriv( GL_FRAMEBUFFER,
GL_FRONT_LEFT, GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE,
&dc.stencilBits ));
EQ_GL_CALL( glGetFramebufferAttachmentParameteriv( GL_FRAMEBUFFER,
GL_FRONT_LEFT, GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE,
&dc.colorBits ));
EQ_GL_CALL( glGetFramebufferAttachmentParameteriv( GL_FRAMEBUFFER,
GL_FRONT_LEFT, GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE,
&dc.alphaBits ));
}
}
else
{
EQ_GL_CALL( glGetIntegerv( GL_STENCIL_BITS, &dc.stencilBits ));
EQ_GL_CALL( glGetIntegerv( GL_RED_BITS, &dc.colorBits ));
EQ_GL_CALL( glGetIntegerv( GL_ALPHA_BITS, &dc.alphaBits ));
EQ_GL_CALL( glGetIntegerv( GL_ACCUM_RED_BITS, &dc.accumBits ));
}
dc.accumBits *= 4;
LBDEBUG << "Window drawable config: " << dc << std::endl;
}
bool FrameData::addImage( const co::ObjectVersion& frameDataVersion,
const PixelViewport& pvp, const Zoom& zoom,
const uint32_t buffers_, const bool useAlpha,
uint8_t* data )
{
LBASSERT( _impl->readyVersion < frameDataVersion.version.low( ));
if( _impl->readyVersion >= frameDataVersion.version.low( ))
return false;
Image* image = _allocImage( Frame::TYPE_MEMORY, DrawableConfig(),
false /* set quality */ );
image->setPixelViewport( pvp );
image->setAlphaUsage( useAlpha );
Frame::Buffer buffers[] = { Frame::BUFFER_COLOR, Frame::BUFFER_DEPTH };
for( unsigned i = 0; i < 2; ++i )
{
const Frame::Buffer buffer = buffers[i];
if( buffers_ & buffer )
{
PixelData pixelData;
const ImageHeader* header = reinterpret_cast<ImageHeader*>( data );
data += sizeof( ImageHeader );
pixelData.internalFormat = header->internalFormat;
pixelData.externalFormat = header->externalFormat;
pixelData.pixelSize = header->pixelSize;
pixelData.pvp = header->pvp;
pixelData.compressorFlags = header->compressorFlags;
const uint32_t compressor = header->compressorName;
if( compressor > EQ_COMPRESSOR_NONE )
{
lunchbox::CompressorChunks chunks;
const uint32_t nChunks = header->nChunks;
chunks.reserve( nChunks );
for( uint32_t j = 0; j < nChunks; ++j )
{
const uint64_t size = *reinterpret_cast< uint64_t*>( data );
data += sizeof( uint64_t );
chunks.push_back( lunchbox::CompressorChunk( data, size ));
data += size;
}
pixelData.compressedData =
lunchbox::CompressorResult( compressor, chunks );
}
else
{
const uint64_t size = *reinterpret_cast< uint64_t*>( data );
data += sizeof( uint64_t );
pixelData.pixels = data;
data += size;
LBASSERT( size == pixelData.pvp.getArea()*pixelData.pixelSize );
}
image->setZoom( zoom );
image->setQuality( buffer, header->quality );
image->setPixelData( buffer, pixelData );
}
}
_impl->pendingImages.push_back( image );
return true;
}