Int32 FBOViewport::getPixelBottom(void) const
{
if(getBottom() > 1)
return Int32(getBottom());
if(getFrameBufferObject() == NULL)
return Int32(getBottom());
return Int32(getFrameBufferObject()->getHeight() * getBottom());
}
bool FBOViewport::isFullWindow(void) const
{
if(getFrameBufferObject() == NULL)
return true;
return
getPixelBottom() == 0 &&
getPixelLeft() == 0 &&
getPixelTop() == getFrameBufferObject()->getHeight() - 1 &&
getPixelRight() == getFrameBufferObject()->getWidth () - 1;
}
bool StagedViewport::isFullWindow(void) const
{
if(getFrameBufferObject() == NULL)
return Viewport::calcIsFullWindow();
else
return
getPixelBottom() == 0 &&
getPixelLeft() == 0 &&
getPixelTop() == getFrameBufferObject()->getHeight() - 1 &&
getPixelRight() == getFrameBufferObject()->getWidth () - 1;
}
Int32 FBOViewport::getPixelTop(void) const
{
// >1: pixel
if(getTop() > 1)
return Int32(getTop());
if(getFrameBufferObject() == NULL)
return Int32(getTop());
// <=1: partial screen, use 1 less to not overlap other windows
return Int32(getFrameBufferObject()->getHeight() * getTop() - 1);
}
Int32 StagedViewport::getPixelBottom(void) const
{
if(!getFrameBufferObject())
{ // => behave like normal viewport
return Viewport::calcPixelBottom();
}
else
{ // => behave like FBOViewport
if(getBottom() > 1)
return Int32(getBottom());
return Int32(getFrameBufferObject()->getHeight() * getBottom());
}
}
Int32 StagedViewport::getPixelTop(void) const
{
if(!getFrameBufferObject())
{ // => behave like normal viewport
return Viewport::calcPixelTop();
}
else
{ // => behave like FBOViewport
if(getTop() > 1)
return Int32(getTop());
// <=1: partial screen, use 1 less to not overlap other windows
return Int32(getFrameBufferObject()->getHeight() * getTop() - 1);
}
}
OSG_USING_NAMESPACE
// Documentation for this class is emited in the
// OSGFBOViewportBase.cpp file.
// To modify it, please change the .fcd file (OSGFBOViewport.fcd) and
// regenerate the base file.
Int32 FBOViewport::getPixelLeft(void) const
{
if(getLeft() > 1)
return Int32(getLeft());
if(getFrameBufferObject() == NULL)
return Int32(getLeft());
return Int32(getFrameBufferObject()->getWidth() * getLeft());
}
void FBOViewport::render(DrawActionBase *action)
{
if(getFrameBufferObject() != NULL)
{
DrawEnv oEnv;
oEnv.setWindow(action->getWindow());
getFrameBufferObject()->activate(&oEnv);
Inherited::render(action);
getFrameBufferObject()->deactivate(&oEnv);
}
else
{
Inherited::render(action);
}
}
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;
}
void GLWindow::queryDrawableConfig( DrawableConfig& drawableConfig )
{
// GL version
const char* glVersion = (const char*)glGetString( GL_VERSION );
if( !glVersion ) // most likely no context - fail
{
LBWARN << "glGetString(GL_VERSION) returned 0, assuming GL version 1.1"
<< std::endl;
drawableConfig.glVersion = 1.1f;
}
else
drawableConfig.glVersion = static_cast<float>( atof( glVersion ));
if( drawableConfig.glVersion >= 3.2f )
{
GLint mask;
EQ_GL_CALL( glGetIntegerv( GL_CONTEXT_PROFILE_MASK, &mask ));
drawableConfig.coreProfile = mask & GL_CONTEXT_CORE_PROFILE_BIT;
}
// Framebuffer capabilities
GLboolean result;
EQ_GL_CALL( glGetBooleanv( GL_STEREO, &result ));
drawableConfig.stereo = result;
EQ_GL_CALL( glGetBooleanv( GL_DOUBLEBUFFER, &result ));
drawableConfig.doublebuffered = result;
GLint stencilBits, colorBits, alphaBits, accumBits;
stencilBits = colorBits = alphaBits = accumBits = 0;
if( drawableConfig.coreProfile )
{
if( getFrameBufferObject( ))
{
glGetFramebufferAttachmentParameteriv( GL_FRAMEBUFFER,
GL_DEPTH_STENCIL_ATTACHMENT,
GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE, &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,
&colorBits ));
EQ_GL_CALL( glGetFramebufferAttachmentParameteriv( GL_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0, GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE,
&alphaBits ));
}
else
{
EQ_GL_CALL( glGetFramebufferAttachmentParameteriv( GL_FRAMEBUFFER,
GL_FRONT_LEFT, GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE,
&stencilBits ));
EQ_GL_CALL( glGetFramebufferAttachmentParameteriv( GL_FRAMEBUFFER,
GL_FRONT_LEFT, GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE,
&colorBits ));
EQ_GL_CALL( glGetFramebufferAttachmentParameteriv( GL_FRAMEBUFFER,
GL_FRONT_LEFT, GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE,
&alphaBits ));
}
}
else
{
EQ_GL_CALL( glGetIntegerv( GL_STENCIL_BITS, &stencilBits ));
EQ_GL_CALL( glGetIntegerv( GL_RED_BITS, &colorBits ));
EQ_GL_CALL( glGetIntegerv( GL_ALPHA_BITS, &alphaBits ));
EQ_GL_CALL( glGetIntegerv( GL_ACCUM_RED_BITS, &accumBits ));
}
drawableConfig.stencilBits = stencilBits;
drawableConfig.colorBits = colorBits;
drawableConfig.alphaBits = alphaBits;
drawableConfig.accumBits = accumBits * 4;
LBDEBUG << "Window drawable config: " << drawableConfig << std::endl;
}
