/**
* initPermTexture(GLuinttexID) - create and load a 2D texture for a combined index permutation
* and gradient lookup table. This texture is used for 2D and 3D noise, both classic and simplex.
*/
private void initPermTexture(GL gl, int[] texID) {
ByteBuffer pixels;
int i, j;
gl.glGenTextures(1, texID, 0); // Generate a unique texture ID
gl.glBindTexture(GL.GL_TEXTURE_2D, texID[0]); // Bind the texture to texture unit 0
pixels = ByteBuffer.allocateDirect(256 * 256 * 4);
for (i = 0; i < 256; i++)
for (j = 0; j < 256; j++) {
int offset = (i * 256 + j) * 4;
int value = perm[(j + perm[i]) & 0xFF];
pixels.put(offset, (byte) (grad3[value & 0x0F][0] * 64 + 64)); // Gradient x
pixels.put(offset + 1, (byte) (grad3[value & 0x0F][1] * 64 + 64)); // Gradient y
pixels.put(offset + 2, (byte) (grad3[value & 0x0F][2] * 64 + 64)); // Gradient z
pixels.put(offset + 3, (byte) value); // Permuted index
}
// GLFW texture loading functions won't work here - we need
// GL.GL_NEAREST lookup.
gl.glTexImage2D(
GL.GL_TEXTURE_2D, 0, GL.GL_RGBA, 256, 256, 0, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, pixels);
gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST);
gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST);
}
/**
* Creates a texture in the given OpenGL context.
*
* @param gl the context
* @param image the RGB or RGBA image serving as texture source
* @param repeat whether the texture should should have repeat mode activated
* @return the texture name (ID)
*/
private static int createTexture(GL gl, BufferedImage image, boolean repeat) {
if (image == null) {
return -1;
}
final int[] tmp = new int[1];
gl.glGenTextures(1, tmp, 0);
int tex = tmp[0];
gl.glBindTexture(GL_TEXTURE_2D, tex);
int[] data = ((DataBufferInt) image.getRaster().getDataBuffer()).getData();
ByteBuffer dest = ByteBuffer.allocate(data.length * BufferUtil.SIZEOF_INT); // TODO direct?
dest.order(ByteOrder.nativeOrder());
dest.asIntBuffer().put(data, 0, data.length);
gl.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
gl.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
int wrapMode = (repeat) ? GL_REPEAT : GL_CLAMP_TO_EDGE;
gl.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapMode);
gl.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapMode);
int oglFormat = (image.getType() == BufferedImage.TYPE_INT_ARGB) ? GL_RGBA : GL_RGB;
gl.glTexImage2D(
GL_TEXTURE_2D,
0,
oglFormat,
image.getWidth(),
image.getHeight(),
0,
GL_BGRA,
GL_UNSIGNED_BYTE,
dest);
// (new GLU()).gluBuild2DMipmaps(GL.GL_TEXTURE_2D, GL.GL_RGB, image.getWidth(),
// image.getHeight(), GL.GL_BGRA,
// GL.GL_UNSIGNED_BYTE, dest);
return tex;
}
void LoadTextures(final GL gl) {
// There is only one texture needed here--we'll set up a basic
// checkerboard--which is used to modulate the diffuse channel in the
// fragment shader.
final int[] handle = new int[1];
gl.glGenTextures(1, handle, 0);
// Basic OpenGL texture state setup
gl.glBindTexture(GL.GL_TEXTURE_2D, handle[0]);
gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_GENERATE_MIPMAP_SGIS, GL.GL_TRUE);
gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_LINEAR_MIPMAP_LINEAR);
gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_LINEAR);
gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_S, GL.GL_CLAMP_TO_EDGE);
gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_T, GL.GL_CLAMP_TO_EDGE);
// Fill in the texture map.
final int RES = 512;
final float[] data = new float[RES * RES * 4];
int dp = 0;
for (int i = 0; i < RES; ++i)
for (int j = 0; j < RES; ++j) {
if ((i / 32 + j / 32) % 2 != 0) {
data[dp++] = .7f;
data[dp++] = .7f;
data[dp++] = .7f;
} else {
data[dp++] = .1f;
data[dp++] = .1f;
data[dp++] = .1f;
}
data[dp++] = 1.0f;
}
gl.glTexImage2D(
GL.GL_TEXTURE_2D,
0,
GL.GL_RGBA,
RES,
RES,
0,
GL.GL_RGBA,
GL.GL_FLOAT,
FloatBuffer.wrap(data));
// Tell Cg which texture handle should be associated with the sampler2D
// parameter to the fragment shader.
CgGL.cgGLSetTextureParameter(
CgGL.cgGetNamedParameter(fragmentProgram, "diffuseMap"), handle[0]);
}
/**
* Updates the content area of the specified target of this texture using the data in the given
* image. In general this is intended for construction of cube maps.
*
* @throws GLException if no OpenGL context was current or if any OpenGL-related errors occurred
*/
public void updateImage(TextureData data, int target) throws GLException {
GL gl = GLU.getCurrentGL();
imgWidth = data.getWidth();
imgHeight = data.getHeight();
aspectRatio = (float) imgWidth / (float) imgHeight;
mustFlipVertically = data.getMustFlipVertically();
int texTarget = 0;
int texParamTarget = this.target;
// See whether we have automatic mipmap generation support
boolean haveAutoMipmapGeneration =
(gl.isExtensionAvailable("GL_VERSION_1_4")
|| gl.isExtensionAvailable("GL_SGIS_generate_mipmap"));
// Indicate to the TextureData what functionality is available
data.setHaveEXTABGR(gl.isExtensionAvailable("GL_EXT_abgr"));
data.setHaveGL12(gl.isExtensionAvailable("GL_VERSION_1_2"));
// Note that automatic mipmap generation doesn't work for
// GL_ARB_texture_rectangle
if ((!isPowerOfTwo(imgWidth) || !isPowerOfTwo(imgHeight)) && !haveNPOT(gl)) {
haveAutoMipmapGeneration = false;
}
boolean expandingCompressedTexture = false;
if (data.getMipmap() && !haveAutoMipmapGeneration) {
// GLU always scales the texture's dimensions to be powers of
// two. It also doesn't really matter exactly what the texture
// width and height are because the texture coords are always
// between 0.0 and 1.0.
imgWidth = nextPowerOfTwo(imgWidth);
imgHeight = nextPowerOfTwo(imgHeight);
texWidth = imgWidth;
texHeight = imgHeight;
texTarget = GL.GL_TEXTURE_2D;
} else if ((isPowerOfTwo(imgWidth) && isPowerOfTwo(imgHeight)) || haveNPOT(gl)) {
if (DEBUG) {
if (isPowerOfTwo(imgWidth) && isPowerOfTwo(imgHeight)) {
System.err.println("Power-of-two texture");
} else {
System.err.println("Using GL_ARB_texture_non_power_of_two");
}
}
texWidth = imgWidth;
texHeight = imgHeight;
texTarget = GL.GL_TEXTURE_2D;
} else if (haveTexRect(gl) && !data.isDataCompressed()) {
// GL_ARB_texture_rectangle does not work for compressed textures
if (DEBUG) {
System.err.println("Using GL_ARB_texture_rectangle");
}
texWidth = imgWidth;
texHeight = imgHeight;
texTarget = GL.GL_TEXTURE_RECTANGLE_ARB;
} else {
// If we receive non-power-of-two compressed texture data and
// don't have true hardware support for compressed textures, we
// can fake this support by producing an empty "compressed"
// texture image, using glCompressedTexImage2D with that to
// allocate the texture, and glCompressedTexSubImage2D with the
// incoming data.
if (data.isDataCompressed()) {
if (data.getMipmapData() != null) {
// We don't currently support expanding of compressed,
// mipmapped non-power-of-two textures to the nearest power
// of two; the obvious port of the non-mipmapped code didn't
// work
throw new GLException(
"Mipmapped non-power-of-two compressed textures only supported on OpenGL 2.0 hardware (GL_ARB_texture_non_power_of_two)");
}
expandingCompressedTexture = true;
}
if (DEBUG) {
System.err.println("Expanding texture to power-of-two dimensions");
}
if (data.getBorder() != 0) {
throw new RuntimeException(
"Scaling up a non-power-of-two texture which has a border won't work");
}
texWidth = nextPowerOfTwo(imgWidth);
texHeight = nextPowerOfTwo(imgHeight);
texTarget = GL.GL_TEXTURE_2D;
}
texParamTarget = texTarget;
setImageSize(imgWidth, imgHeight, texTarget);
if (target != 0) {
// Allow user to override auto detection and skip bind step (for
// cubemap construction)
texTarget = target;
if (this.target == 0) {
throw new GLException("Override of target failed; no target specified yet");
}
texParamTarget = this.target;
gl.glBindTexture(texParamTarget, texID);
} else {
gl.glBindTexture(texTarget, texID);
}
if (data.getMipmap() && !haveAutoMipmapGeneration) {
int[] align = new int[1];
gl.glGetIntegerv(GL.GL_UNPACK_ALIGNMENT, align, 0); // save alignment
gl.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, data.getAlignment());
if (data.isDataCompressed()) {
throw new GLException("May not request mipmap generation for compressed textures");
}
try {
GLU glu = new GLU();
glu.gluBuild2DMipmaps(
texTarget,
data.getInternalFormat(),
data.getWidth(),
data.getHeight(),
data.getPixelFormat(),
data.getPixelType(),
data.getBuffer());
} finally {
gl.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, align[0]); // restore alignment
}
} else {
checkCompressedTextureExtensions(data);
Buffer[] mipmapData = data.getMipmapData();
if (mipmapData != null) {
int width = texWidth;
int height = texHeight;
for (int i = 0; i < mipmapData.length; i++) {
if (data.isDataCompressed()) {
// Need to use glCompressedTexImage2D directly to allocate and fill this image
// Avoid spurious memory allocation when possible
gl.glCompressedTexImage2D(
texTarget,
i,
data.getInternalFormat(),
width,
height,
data.getBorder(),
mipmapData[i].remaining(),
mipmapData[i]);
} else {
// Allocate texture image at this level
gl.glTexImage2D(
texTarget,
i,
data.getInternalFormat(),
width,
height,
data.getBorder(),
data.getPixelFormat(),
data.getPixelType(),
null);
updateSubImageImpl(data, texTarget, i, 0, 0, 0, 0, data.getWidth(), data.getHeight());
}
width = Math.max(width / 2, 1);
height = Math.max(height / 2, 1);
}
} else {
if (data.isDataCompressed()) {
if (!expandingCompressedTexture) {
// Need to use glCompressedTexImage2D directly to allocate and fill this image
// Avoid spurious memory allocation when possible
gl.glCompressedTexImage2D(
texTarget,
0,
data.getInternalFormat(),
texWidth,
texHeight,
data.getBorder(),
data.getBuffer().capacity(),
data.getBuffer());
} else {
ByteBuffer buf =
DDSImage.allocateBlankBuffer(texWidth, texHeight, data.getInternalFormat());
gl.glCompressedTexImage2D(
texTarget,
0,
data.getInternalFormat(),
texWidth,
texHeight,
data.getBorder(),
buf.capacity(),
buf);
updateSubImageImpl(data, texTarget, 0, 0, 0, 0, 0, data.getWidth(), data.getHeight());
}
} else {
if (data.getMipmap() && haveAutoMipmapGeneration) {
// For now, only use hardware mipmapping for uncompressed 2D
// textures where the user hasn't explicitly specified
// mipmap data; don't know about interactions between
// GL_GENERATE_MIPMAP and glCompressedTexImage2D
gl.glTexParameteri(texParamTarget, GL.GL_GENERATE_MIPMAP, GL.GL_TRUE);
usingAutoMipmapGeneration = true;
}
gl.glTexImage2D(
texTarget,
0,
data.getInternalFormat(),
texWidth,
texHeight,
data.getBorder(),
data.getPixelFormat(),
data.getPixelType(),
null);
updateSubImageImpl(data, texTarget, 0, 0, 0, 0, 0, data.getWidth(), data.getHeight());
}
}
}
int minFilter = (data.getMipmap() ? GL.GL_LINEAR_MIPMAP_LINEAR : GL.GL_LINEAR);
int magFilter = GL.GL_LINEAR;
int wrapMode = (gl.isExtensionAvailable("GL_VERSION_1_2") ? GL.GL_CLAMP_TO_EDGE : GL.GL_CLAMP);
// REMIND: figure out what to do for GL_TEXTURE_RECTANGLE_ARB
if (texTarget != GL.GL_TEXTURE_RECTANGLE_ARB) {
gl.glTexParameteri(texParamTarget, GL.GL_TEXTURE_MIN_FILTER, minFilter);
gl.glTexParameteri(texParamTarget, GL.GL_TEXTURE_MAG_FILTER, magFilter);
gl.glTexParameteri(texParamTarget, GL.GL_TEXTURE_WRAP_S, wrapMode);
gl.glTexParameteri(texParamTarget, GL.GL_TEXTURE_WRAP_T, wrapMode);
if (this.target == GL.GL_TEXTURE_CUBE_MAP) {
gl.glTexParameteri(texParamTarget, GL.GL_TEXTURE_WRAP_R, wrapMode);
}
}
// Don't overwrite target if we're loading e.g. faces of a cube
// map
if ((this.target == 0)
|| (this.target == GL.GL_TEXTURE_2D)
|| (this.target == GL.GL_TEXTURE_RECTANGLE_ARB)) {
this.target = texTarget;
}
// This estimate will be wrong for cube maps
estimatedMemorySize = data.getEstimatedMemorySize();
}
/**
* Loads a TGA file into memory
*
* @param gl
* @param texture
* @param filename
* @throws IOException
*/
private void loadTGA(GL gl, TextureImage texture, String filename) throws IOException {
// Used To Compare TGA Header
ByteBuffer TGAcompare = GLBuffers.newDirectByteBuffer(12);
// Uncompressed TGA Header
byte[] TGAheader = new byte[] {0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0};
ByteBuffer header = GLBuffers.newDirectByteBuffer(6); // First 6 Useful
// Bytes
// From The
// Header
int bytesPerPixel, // Holds Number Of Bytes Per Pixel Used In The TGA
// File
imageSize, // Used To Store The Image Size When Setting Aside Ram
type = GL.GL_RGBA; // Set The Default GL Mode To RBGA (32 BPP)
ReadableByteChannel file = null;
try {
file = Channels.newChannel(ResourceRetriever.getResourceAsStream(filename));
readBuffer(file, TGAcompare);
readBuffer(file, header);
for (int i = 0; i < TGAcompare.capacity(); i++)
// Does The Header Match What We Want?
if (TGAcompare.get(i) != TGAheader[i]) {
throw new IOException("Invalid TGA header");
}
texture.width = header.get(1) << 8 | header.get(0); // Determine The
// TGA
// Width(highbyte*256+lowbyte)
texture.height = header.get(3) << 8 | header.get(2); // Determine
// The TGA
// Height(highbyte*256+lowbyte)
if (texture.width <= 0) { // Is The Width Less Than Or Equal To Zero
throw new IOException("Image has negative width");
}
if (texture.height <= 0) { // Is The Height Less Than Or Equal To
// Zero
throw new IOException("Image has negative height");
}
if (header.get(4) != 24 && header.get(4) != 32) { // Is The TGA 24
// or 32 Bit?
throw new IOException("Image is not 24 or 32-bit");
}
texture.bpp = header.get(4); // Grab The TGA's Bits Per Pixel (24 or
// 32)
bytesPerPixel = texture.bpp / 8; // Divide By 8 To Get The Bytes Per
// Pixel
// Calculate the memory required for the TGA Data
imageSize = texture.width * texture.height * bytesPerPixel;
// Reserve memory to hold the TGA Data
texture.imageData = GLBuffers.newDirectByteBuffer(imageSize);
readBuffer(file, texture.imageData);
// Loop Through The Image Data
for (int i = 0; i < imageSize; i += bytesPerPixel) {
// Swaps The 1st And 3rd Bytes ('R'ed and 'B'lue)
// Temporarily Store The Value At Image Data 'i'
byte temp = texture.imageData.get(i);
// Set the 1st Byte to the value Of the 3rd Byte
texture.imageData.put(i, texture.imageData.get(i + 2));
// Set The 3rd Byte To The Value In 'temp' (1st Byte Value)
texture.imageData.put(i + 2, temp);
}
// Build A Texture From The Data
gl.glGenTextures(1, texture.texID, 0); // Generate OpenGL texture
// IDs
gl.glBindTexture(GL.GL_TEXTURE_2D, texture.texID[0]); // Bind Our
// Texture
gl.glTexParameterf(
GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_LINEAR); // Linear Filtered
gl.glTexParameterf(
GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_LINEAR); // Linear Filtered
if (texture.bpp == 24) // Was The TGA 24 Bits
type = GL.GL_RGB; // If So Set The 'type' To GL_RGB
gl.glTexImage2D(
GL.GL_TEXTURE_2D,
0,
type,
texture.width,
texture.height,
0,
type,
GL.GL_UNSIGNED_BYTE,
texture.imageData);
} finally {
if (file != null) {
try {
file.close();
} catch (IOException n) {
}
}
}
}
/* Given user requested textures size, determine if it fits. If it doesn't then
* halve both sides and make the determination again until it does fit ( for
* IR only ).
* Note that proxy textures are not implemented in RE* even though they
* advertise the texture extension.
* Note that proxy textures are implemented but not according to spec in IMPACT*
*/
public static void closestFit(
GL gl,
int target,
int width,
int height,
int internalFormat,
int format,
int type,
int[] newWidth,
int[] newHeight) {
// Use proxy textures if OpenGL version >= 1.1
if (Double.parseDouble(gl.glGetString(GL.GL_VERSION).trim().substring(0, 3)) >= 1.1) {
int widthPowerOf2 = nearestPower(width);
int heightPowerOf2 = nearestPower(height);
int[] proxyWidth = new int[1];
boolean noProxyTextures = false;
// Some drivers (in particular, ATI's) seem to set a GL error
// when proxy textures are used even though this is in violation
// of the spec. Guard against this and interactions with the
// DebugGL by watching for GLException.
try {
do {
// compute level 1 width & height, clamping each at 1
int widthAtLevelOne = ((width > 1) ? (widthPowerOf2 >> 1) : widthPowerOf2);
int heightAtLevelOne = ((height > 1) ? (heightPowerOf2 >> 1) : heightPowerOf2);
int proxyTarget;
assert (widthAtLevelOne > 0);
assert (heightAtLevelOne > 0);
// does width x height at level 1 & all their mipmaps fit?
if (target == GL2GL3.GL_TEXTURE_2D || target == GL2GL3.GL_PROXY_TEXTURE_2D) {
proxyTarget = GL2GL3.GL_PROXY_TEXTURE_2D;
gl.glTexImage2D(
proxyTarget,
1,
internalFormat,
widthAtLevelOne,
heightAtLevelOne,
0,
format,
type,
null);
} else if ((target == GL2GL3.GL_TEXTURE_CUBE_MAP_POSITIVE_X)
|| (target == GL2GL3.GL_TEXTURE_CUBE_MAP_NEGATIVE_X)
|| (target == GL2GL3.GL_TEXTURE_CUBE_MAP_POSITIVE_Y)
|| (target == GL2GL3.GL_TEXTURE_CUBE_MAP_NEGATIVE_Y)
|| (target == GL2GL3.GL_TEXTURE_CUBE_MAP_POSITIVE_Z)
|| (target == GL2GL3.GL_TEXTURE_CUBE_MAP_NEGATIVE_Z)) {
proxyTarget = GL2GL3.GL_PROXY_TEXTURE_CUBE_MAP;
gl.glTexImage2D(
proxyTarget,
1,
internalFormat,
widthAtLevelOne,
heightAtLevelOne,
0,
format,
type,
null);
} else {
assert (target == GL2GL3.GL_TEXTURE_1D || target == GL2GL3.GL_PROXY_TEXTURE_1D);
proxyTarget = GL2GL3.GL_PROXY_TEXTURE_1D;
gl.getGL2GL3()
.glTexImage1D(
proxyTarget, 1, internalFormat, widthAtLevelOne, 0, format, type, null);
}
if (gl.isGL2GL3()) {
gl.getGL2GL3()
.glGetTexLevelParameteriv(proxyTarget, 1, GL2GL3.GL_TEXTURE_WIDTH, proxyWidth, 0);
} else {
proxyWidth[0] = 0;
}
// does it fit?
if (proxyWidth[0] == 0) { // nope, so try again with theses sizes
if (widthPowerOf2 == 1 && heightPowerOf2 == 1) {
/* A 1x1 texture couldn't fit for some reason so break out. This
* should never happen. But things happen. The disadvantage with
* this if-statement is that we will never be aware of when this
* happens since it will silently branch out.
*/
noProxyTextures = true;
break;
}
widthPowerOf2 = widthAtLevelOne;
heightPowerOf2 = heightAtLevelOne;
}
// else it does fit
} while (proxyWidth[0] == 0);
} catch (GLException e) {
noProxyTextures = true;
}
// loop must terminate
// return the width & height at level 0 that fits
if (!noProxyTextures) {
newWidth[0] = widthPowerOf2;
newHeight[0] = heightPowerOf2;
return;
}
}
int[] maxsize = new int[1];
gl.glGetIntegerv(GL2GL3.GL_MAX_TEXTURE_SIZE, maxsize, 0);
// clamp user's texture sizes to maximum sizes, if necessary
newWidth[0] = nearestPower(width);
if (newWidth[0] > maxsize[0]) {
newWidth[0] = maxsize[0];
}
newHeight[0] = nearestPower(height);
if (newHeight[0] > maxsize[0]) {
newHeight[0] = maxsize[0];
}
}
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);
}