public static void deleteGLResource(int id, int type) {
if (type == GL_TEXTURE_OBJECT) {
if (glTextureObjects.contains(id)) {
int[] temp = {id};
gl.glDeleteTextures(1, temp, 0);
glTextureObjects.remove(id);
}
} else if (type == GL_VERTEX_BUFFER) {
if (glVertexBuffers.contains(id)) {
int[] temp = {id};
gl.glDeleteBuffersARB(1, temp, 0);
glVertexBuffers.remove(id);
}
} else if (type == GL_FRAME_BUFFER) {
if (glFrameBuffers.contains(id)) {
int[] temp = {id};
gl.glDeleteFramebuffersEXT(1, temp, 0);
glFrameBuffers.remove(id);
}
} else if (type == GL_RENDER_BUFFER) {
if (glRenderBuffers.contains(id)) {
int[] temp = {id};
gl.glDeleteRenderbuffersEXT(1, temp, 0);
glRenderBuffers.remove(id);
}
} else if (type == GLSL_PROGRAM) {
if (glslPrograms.contains(id)) {
gl.glDeleteProgram(id);
glslPrograms.remove(id);
}
} else if (type == GLSL_SHADER) {
if (glslShaders.contains(id)) {
gl.glDeleteShader(id);
glslShaders.remove(id);
}
}
}
// Releases any remaining OpenGL resources (including CG resources).
public static void deleteAllGLResources() {
if (!glTextureObjects.isEmpty()) {
Object[] glids = glTextureObjects.toArray();
for (int i = 0; i < glids.length; i++) {
int id = ((Integer) glids[i]).intValue();
int[] temp = {id};
gl.glDeleteTextures(1, temp, 0);
}
glTextureObjects.clear();
}
if (!glVertexBuffers.isEmpty()) {
Object[] glids = glVertexBuffers.toArray();
for (int i = 0; i < glids.length; i++) {
int id = ((Integer) glids[i]).intValue();
int[] temp = {id};
gl.glDeleteBuffersARB(1, temp, 0);
}
glVertexBuffers.clear();
}
if (!glFrameBuffers.isEmpty()) {
Object[] glids = glFrameBuffers.toArray();
for (int i = 0; i < glids.length; i++) {
int id = ((Integer) glids[i]).intValue();
int[] temp = {id};
gl.glDeleteFramebuffersEXT(1, temp, 0);
}
glFrameBuffers.clear();
}
if (!glRenderBuffers.isEmpty()) {
Object[] glids = glRenderBuffers.toArray();
for (int i = 0; i < glids.length; i++) {
int id = ((Integer) glids[i]).intValue();
int[] temp = {id};
gl.glDeleteRenderbuffersEXT(1, temp, 0);
}
glRenderBuffers.clear();
}
if (!glslPrograms.isEmpty()) {
Object[] glids = glslPrograms.toArray();
for (int i = 0; i < glids.length; i++) {
int id = ((Integer) glids[i]).intValue();
gl.glDeleteProgram(id);
}
glslPrograms.clear();
}
if (!glslShaders.isEmpty()) {
Object[] glids = glslShaders.toArray();
for (int i = 0; i < glids.length; i++) {
int id = ((Integer) glids[i]).intValue();
gl.glDeleteShader(id);
}
glslShaders.clear();
}
if (!cgContexts.isEmpty()) {
Object[] glids = cgContexts.toArray();
for (int i = 0; i < glids.length; i++) {
Object id = glids[i];
CgGL.cgDestroyContext((CGcontext) id);
}
cgContexts.clear();
}
if (!cgPrograms.isEmpty()) {
Object[] glids = cgPrograms.toArray();
for (int i = 0; i < glids.length; i++) {
Object id = glids[i];
CgGL.cgDestroyProgram((CGprogram) id);
}
cgPrograms.clear();
}
if (!cgEffects.isEmpty()) {
Object[] glids = cgEffects.toArray();
for (int i = 0; i < glids.length; i++) {
Object id = glids[i];
CgGL.cgDestroyEffect((CGeffect) id);
}
cgEffects.clear();
}
}
public void prerenderToTexture(GL gl) {
int texSize = 256;
final int[] tmp = new int[1];
gl.glGenTextures(1, tmp, 0);
textureID = tmp[0];
gl.glBindTexture(GL_TEXTURE_2D, textureID);
gl.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
gl.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
gl.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
gl.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
gl.glTexImage2D(
GL_TEXTURE_2D, 0, GL_RGBA, texSize, texSize, 0, GL_BGRA, GL_UNSIGNED_BYTE, null);
final int[] fbo = new int[1];
gl.glGenFramebuffersEXT(1, IntBuffer.wrap(fbo));
gl.glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo[0]);
gl.glFramebufferTexture2DEXT(
GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, textureID, 0);
gl.glDrawBuffers(1, IntBuffer.wrap(new int[] {GL_COLOR_ATTACHMENT0_EXT}));
final int[] rba = new int[1];
gl.glGenRenderbuffersEXT(1, IntBuffer.wrap(rba));
gl.glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, rba[0]);
gl.glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT, texSize, texSize);
gl.glFramebufferRenderbufferEXT(
GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, rba[0]);
gl.glPushMatrix();
gl.glLoadIdentity();
gl.glPushAttrib(GL_VIEWPORT_BIT);
gl.glViewport(0, 0, texSize, texSize);
gl.glMatrixMode(GL.GL_PROJECTION);
gl.glPushMatrix();
gl.glLoadIdentity();
gl.glOrtho(0, texSize, 0, texSize, 0, 10);
gl.glMatrixMode(GL.GL_MODELVIEW);
Set<MapElement> map = State.getInstance().getMapInfo().queryElements(detailLevel, bounds, true);
gl.glDisable(GL_TEXTURE_2D);
gl.glColor3f(1, 1, 1);
for (MapElement element : map) {
if (element instanceof Street) {
drawLine(
gl,
((Street) element).getDrawingSize() / (float) Projection.getZoomFactor(detailLevel),
((Street) element).getNodes());
}
}
gl.glColor3f(0.3f, 0.3f, 0.3f);
for (MapElement element : map) {
if ((element instanceof Area) && (((Area) element).getWayInfo().isBuilding())) {
gl.glBegin(GL_POLYGON);
for (Node node : ((Area) element).getNodes()) {
Coordinates pos = getLocalCoordinates(node.getPos());
gl.glVertex3f(pos.getLongitude(), pos.getLatitude(), 0f);
}
gl.glEnd();
}
}
gl.glEnable(GL_TEXTURE_2D);
gl.glMatrixMode(GL.GL_PROJECTION);
gl.glPopMatrix();
gl.glMatrixMode(GL.GL_MODELVIEW);
gl.glPopAttrib();
gl.glPopMatrix();
gl.glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
gl.glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
gl.glDeleteFramebuffersEXT(1, fbo, 0);
gl.glDeleteRenderbuffersEXT(1, rba, 0);
}