// This requires the isFBO parameter because GL ES 3.0's glInvalidateFramebuffer() uses
// different attachment values for FBO vs default framebuffer, unlike glDiscardFramebufferEXT()
void GL_InvalidateFramebuffer( const invalidateTarget_t isFBO, const bool colorBuffer, const bool depthBuffer )
{
const int offset = (int)!colorBuffer;
const int count = (int)colorBuffer + ((int)depthBuffer)*2;
const GLenum fboAttachments[3] = { GL_COLOR_ATTACHMENT0, GL_DEPTH_ATTACHMENT, GL_STENCIL_ATTACHMENT };
const GLenum attachments[3] = { GL_COLOR_EXT, GL_DEPTH_EXT, GL_STENCIL_EXT };
glInvalidateFramebuffer_( GL_FRAMEBUFFER, count, ( isFBO == INV_FBO ? fboAttachments : attachments ) + offset );
}
void DirectRender::EndDirectRendering() const
{
switch( tilerControl )
{
case FB_TILED_RENDERING:
{
// This has an implicit flush
if ( QCOM_tiled_rendering )
{
glEndTilingQCOM_( GL_COLOR_BUFFER_BIT0_QCOM );
}
break;
}
case FB_BINNING_CONTROL:
{
glHint( GL_BINNING_CONTROL_HINT_QCOM, GL_DONT_CARE );
// Flush explicitly
glFlush(); // GL_Flush() with KHR_sync seems to be synchronous
break;
}
case FB_WRITEONLY_RENDERING:
{
glDisable( GL_WRITEONLY_RENDERING_QCOM );
// Flush explicitly
glFlush(); // GL_Flush() with KHR_sync seems to be synchronous
break;
}
case FB_MALI:
{
const GLenum attachments[2] = { GL_DEPTH, GL_STENCIL };
glInvalidateFramebuffer_( GL_FRAMEBUFFER, 2, attachments );
// Flush explicitly
glFlush(); // GL_Flush() with KHR_sync seems to be synchronous
break;
}
default:
{
glFlush(); // GL_Flush() with KHR_sync seems to be synchronous
break;
}
}
}
void DirectRender::BeginDirectRendering( int x, int y, int width, int height )
{
switch( tilerControl )
{
case FB_TILED_RENDERING:
{
if ( QCOM_tiled_rendering )
{
glStartTilingQCOM_( x, y, width, height, 0 );
}
glScissor( x, y, width, height );
break;
}
case FB_BINNING_CONTROL:
{
glHint( GL_BINNING_CONTROL_HINT_QCOM, GL_RENDER_DIRECT_TO_FRAMEBUFFER_QCOM );
glScissor( x, y, width, height );
break;
}
case FB_WRITEONLY_RENDERING:
{
glEnable( GL_WRITEONLY_RENDERING_QCOM );
glScissor( x, y, width, height );
break;
}
case FB_MALI:
{
const GLenum attachments[3] = { GL_COLOR, GL_DEPTH, GL_STENCIL };
glInvalidateFramebuffer_( GL_FRAMEBUFFER, 3, attachments );
glScissor( x, y, width, height );
// This clear is not absolutely necessarily but ARM prefers an explicit glClear call to avoid ambiguity.
//glClearColor( 0, 0, 0, 1 );
//glClear( GL_COLOR_BUFFER_BIT );
break;
}
default:
{
glScissor( x, y, width, height );
break;
}
}
}
