void BaseHierarchical::SetupStages (int targetW, int targetH,
iTextureHandle* measureTex)
{
computeStages.Empty();
computeFX.ClearLayers();
int currentW = targetW;
int currentH = targetH;
const int minSize = 256; /* Arbitrary
@@@ In fact I [res] don't know the cut
off point after which the multi-stage
approach is faster than a readback of
the first stage, or if that exists at
all... */
iTextureHandle* currentTex = measureTex;
bool iterateStage;
do
{
LuminanceComputeStage newStage;
iterateStage = SetupStage (newStage, currentW, currentH, minSize,
currentTex,
computeStages.GetSize() == 0 ? computeShader1 : computeShaderN);
computeStages.Push (newStage);
currentW = newStage.targetW;
currentH = newStage.targetH;
currentTex = newStage.target;
}
while (iterateStage);
computeFX.SetEffectsOutputTarget (computeStages[0].target);
CS::Math::Matrix4 perspectiveFixup;
computeFX.SetupView (computeStages[0].targetW, computeStages[0].targetH,
perspectiveFixup);
}
// Constructor
// This is called once at the beginning of the game to
// set up the initial game state.
GameState::GameState() {
// Setup the stage for level 1.
SetupStage(kLevel_1);
}
void GameState::Update_Title() {
if (CheckKeyPress(KEY_START)) {
SetupStage(kLevel_1);
}
}
// Constructor
// This is called once at the beginning of the game to
// set up the initial game state.
GameState::GameState() {
// Start with the title screen.
SetupStage(kLevel_Title);
}