//--------------------------------------------------------------------------------------
// Name: DrawScreenSpaceQuad()
// Desc: Draw a viewport-aligned quad using screen-space coordinates
//--------------------------------------------------------------------------------------
VOID PostProcess::DrawScreenSpaceQuad( FLOAT w, FLOAT h, FLOAT fMaxU, FLOAT fMaxV )
{
// Make sure that the required shaders and objects exist
assert( m_pQuadVtxDecl );
assert( m_pScreenSpaceVS );
// Define vertices for the screen-space rect
XMFLOAT4 v[3];
v[0] = XMFLOAT4( 0, 0, 0.0f, 0.0f );
v[1] = XMFLOAT4( w, 0, fMaxU, 0.0f );
v[2] = XMFLOAT4( 0, h, 0.0f, fMaxV );
// Set states for drawing the quad
PushRenderState( D3DRS_VIEWPORTENABLE, FALSE );
PushRenderState( D3DRS_ZENABLE, FALSE );
PushRenderState( D3DRS_CULLMODE, D3DCULL_CCW );
PushRenderState( D3DRS_HALFPIXELOFFSET, TRUE );
// Draw the quad
g_pd3dDevice->SetVertexDeclaration( m_pQuadVtxDecl );
g_pd3dDevice->SetVertexShader( m_pScreenSpaceVS );
g_pd3dDevice->DrawPrimitiveUP( D3DPT_RECTLIST, 1, v, sizeof( v[0] ) );
PopRenderStates();
}
void GPC_Canvas::DrawAllBanners(void)
{
if(!m_bannersEnabled || (m_banners.size() < 1))
return;
// Save the old rendering parameters.
CanvasRenderState render_state;
PushRenderState(render_state);
// Set up everything for banner display.
// Set up OpenGL matrices
SetOrthoProjection();
// Activate OpenGL settings needed for display of the texture
::glDisable(GL_LIGHTING);
::glDisable(GL_DEPTH_TEST);
::glDisable(GL_FOG);
::glEnable(GL_TEXTURE_2D);
::glEnable(GL_BLEND);
::glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
TBannerMap::iterator it = m_banners.begin();
while (it != m_banners.end()) {
if (it->second.enabled) {
DrawBanner(it->second);
}
it++;
}
PopRenderState(render_state);
}
//--------------------------------------------------------------------------------------
// Name: DrawFullScreenQuad()
// Desc: Draw a viewport-aligned quad covering the entire render target
//--------------------------------------------------------------------------------------
VOID PostProcess::DrawFullScreenQuad()
{
// Make sure that the required shaders and objects exist
assert( m_pQuadVtxDecl );
assert( m_pQuadVB );
assert( m_pScreenSpaceVS );
// Set states for drawing the rect
PushRenderState( D3DRS_VIEWPORTENABLE, TRUE );
PushRenderState( D3DRS_ZENABLE, FALSE );
PushRenderState( D3DRS_CULLMODE, D3DCULL_CCW );
PushRenderState( D3DRS_HALFPIXELOFFSET, TRUE );
// Draw the rect
g_pd3dDevice->SetVertexDeclaration( m_pQuadVtxDecl );
g_pd3dDevice->SetVertexShader( m_pScreenSpaceVS );
g_pd3dDevice->SetStreamSource( 0, m_pQuadVB, 0, sizeof( XMFLOAT4 ) );
g_pd3dDevice->DrawPrimitive( D3DPT_RECTLIST, 0, g_dwNumQuadsInGrid );
PopRenderStates();
}
