void VideoEngine::PopState()
{
// Restore the most recent context information and pop it from stack
if(_context_stack.empty()) {
IF_PRINT_WARNING(VIDEO_DEBUG) << "no video states were saved on the stack" << std::endl;
return;
}
_current_context = _context_stack.top();
_context_stack.pop();
// Restore the modelview transformation
glMatrixMode(GL_MODELVIEW);
PopMatrix();
glViewport(_current_context.viewport.left, _current_context.viewport.top, _current_context.viewport.width, _current_context.viewport.height);
if(_current_context.scissoring_enabled) {
EnableScissoring();
glScissor(static_cast<GLint>((_current_context.scissor_rectangle.left / static_cast<float>(VIDEO_STANDARD_RES_WIDTH)) * _current_context.viewport.width),
static_cast<GLint>((_current_context.scissor_rectangle.top / static_cast<float>(VIDEO_STANDARD_RES_HEIGHT)) * _current_context.viewport.height),
static_cast<GLsizei>((_current_context.scissor_rectangle.width / static_cast<float>(VIDEO_STANDARD_RES_WIDTH)) * _current_context.viewport.width),
static_cast<GLsizei>((_current_context.scissor_rectangle.height / static_cast<float>(VIDEO_STANDARD_RES_HEIGHT)) * _current_context.viewport.height)
);
} else {
DisableScissoring();
}
}
void dx10StateManager::SetRasterizerState(ID3DRasterizerState* pRState)
{
m_bRSChanged = false;
m_bRDInvalid = true;
if (pRState != m_pRState)
{
m_pRState = pRState;
m_bRSNeedApply = true;
}
if (m_bOverrideScissoring)
EnableScissoring(m_bOverrideScissoringValue);
}
void dx10StateManager::OverrideScissoring(bool bOverride, BOOL bValue)
{
m_bOverrideScissoring = bOverride;
m_bOverrideScissoringValue = bValue;
if (m_bOverrideScissoring)
EnableScissoring(m_bOverrideScissoringValue);
else
{
if (m_bRSChanged)
{
D3D_RASTERIZER_DESC tmpDesc;
if (m_pRState)
m_pRState->GetDesc(&tmpDesc);
else
dx10StateUtils::ResetDescription(tmpDesc);
m_RDesc.ScissorEnable = tmpDesc.ScissorEnable;
}
}
}
