corrected zbuffer data access, but screenblock not works for me (or rather never for me)

bitmap.h

@@ -42,6 +42,7 @@ public:
 	int y() const { return _y; }
 
 	char *getData() { return _data[_currImage]; }
+	char *getZbufferData() { return _data[_currImage - 1]; }
 
 	~Bitmap();
 

driver_gl.cpp

@@ -323,10 +323,10 @@ void Driver::updateMesh(const Model::Mesh *mesh) {
 
 			if(winZ > bestDepth)
 				bestDepth = winZ;
-
 		}
 
-		//screenBlocksAddRectangle(top, right, left, bottom, bestDepth);
+//		if (SCREENBLOCKS_GLOBAL)
+//			screenBlocksAddRectangle(top, right, left, bottom, bestDepth);
 	}
 
 	glDisable(GL_DEPTH_TEST);

engine.cpp

@@ -125,9 +125,6 @@ void Engine::mainLoop() {
 				}
 			}
 		} else if (_mode == ENGINE_MODE_NORMAL) {
-			if (SCREENBLOCKS_GLOBAL)
-				screenBlocksReset();
-
 			if (_currScene != NULL) {
 				// Update actor costumes
 				for (ActorListType::iterator i = _actors.begin(); i != _actors.end(); i++) {
@@ -137,6 +134,9 @@ void Engine::mainLoop() {
 				}
 			}
 
+			if (SCREENBLOCKS_GLOBAL)
+				screenBlocksReset();
+
 			g_driver->clearScreen();
 
 			if (SCREENBLOCKS_GLOBAL)
@@ -176,7 +176,9 @@ void Engine::mainLoop() {
 					if (_currScene != NULL && a->inSet(_currScene->name()) && a->visible())
 						a->draw();
 				}
-				//screenBlocksDrawDebug();
+
+				if (SCREENBLOCKS_GLOBAL)
+					screenBlocksDrawDebug();
 			}
 
 			// Draw text

scene.cpp

@@ -172,7 +172,7 @@ void Scene::setSetup(int num) {
 		return;
 
 	if (_currSetup->_bkgndZBm)
-		screenBlocksInit(_currSetup->_bkgndZBm->getData() );
+		screenBlocksInit(_currSetup->_bkgndZBm->getZbufferData());
 	else
 		screenBlocksInitEmpty();
 }
@@ -229,7 +229,7 @@ ObjectState *Scene::findState(const char *filename) {
 
 void Scene::setSoundPosition(const char *soundName, Vector3d pos) {
 	Vector3d cameraPos = _currSetup->_pos;
-	Vector3d vector;
+	Vector3d vector, vector2;
 	vector.set(fabs(cameraPos.x() - pos.x()), fabs(cameraPos.y() - pos.y()), fabs(cameraPos.z() - pos.z()));
 	float distance = vector.magnitude();
 	float maxDistance = 8.0f;
@@ -238,8 +238,16 @@ void Scene::setSoundPosition(const char *soundName, Vector3d pos) {
 	newVolume += _minVolume;
 	g_imuse->setVolume(soundName, newVolume);
 
-	// TODO: pan
+	vector.set(_currSetup->_interest.x() - cameraPos.x(), _currSetup->_interest.y() - cameraPos.y(),
-	// roll, fov
+		_currSetup->_interest.z() - cameraPos.z());
+	vector2.set(pos.x() - cameraPos.x(), pos.y() - cameraPos.y(), pos.z() - cameraPos.z());
+//	printf("a pos (%2.2f, %2.2f, %2.2f) i pos (%2.2f, %2.2f, %2.2f) c pos (%2.2f, %2.2f, %2.2f)\n", pos.x(), pos.y(), pos.z(),
+//		_currSetup->_interest.x(), _currSetup->_interest.y(), _currSetup->_interest.z(),
+//		cameraPos.x(), cameraPos.y(), cameraPos.z());
+	float a = angle(vector, vector2);
+	int pan = a * 127 * 1.5;
+	pan = (pan / 2) + 64;
+//	g_imuse->setPan(soundName, pan);
 }
 
 void Scene::setSoundParameters(int minVolume, int maxVolume) {

screen.cpp

@@ -46,7 +46,7 @@ float getZbufferBlockDepth(char *zbuffer, int x, int y) {
 
 	unsigned short int bDepth = 0xFFFF;
 
-	for (i = 0; i < SCREEN_BLOCK_SIZE; i++ ) {
+	for (i = 0; i < SCREEN_BLOCK_SIZE; i++) {
 		if (bDepth > buffer[i])
 			bDepth = buffer[i];
 	}
@@ -105,19 +105,14 @@ void screenBlocksAddRectangle( int top, int right, int left, int bottom, float d
 	if ((left > right) || (top > bottom))
 		return;
 
-	int firstLeft;
+	int firstLeft = left / 16;
-	int firstTop;
+	int firstTop = top /16;
-	int width;
-	int height;
 
-	firstLeft = left / 16;
+	int width = (right - left) / 16;
-	firstTop = top /16;
+	if ((right - left) % 16)
-
-	width = (right - left) / 16;
-	if ((right-left) % 16)
 		width++;
 
-	height = (bottom - top) / 16;
+	int height = (bottom - top) / 16;
 	if ((bottom - top) % 16)
 		height++;
 
@@ -142,7 +137,7 @@ void screenBlocksDrawDebug() {
 
 	glDisable(GL_DEPTH_TEST);
 	glColor4f(1.f, 0.3f, 1.f, 0.4f);
-	glDisable(GL_TEXTURE_2D );
+	glDisable(GL_TEXTURE_2D);
 	glDisable(GL_LIGHTING);
 	glEnable(GL_BLEND);
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
@@ -176,7 +171,7 @@ void screenBlocksBlitDirtyBlocks() {
 	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
 	glDepthMask(GL_TRUE);
 
-	for (int j = 0;j < 30; j++) {
+	for (int j = 0; j < 30; j++) {
 		for (int i = 0; i < 40; i++) {
 			if (screenBlockData[i][j].isDirty) {
 				int width = 1;
@@ -197,4 +192,3 @@ void screenBlocksBlitDirtyBlocks() {
 	glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); 
 	glDepthFunc(GL_LESS);
 }
-

screen.h

@@ -48,4 +48,3 @@ void screenBlocksDrawDebug();
 void screenBlocksBlitDirtyBlocks();
 
 #endif // _SCREEN_H_
-