/**
* Renders the tile to the given context, in the process building all needed resources.
*
* @param gl
*/
public void render(GL gl) {
projection = ProjectionFactory.getCurrentProjection();
heightmap = State.getInstance().getLoadedHeightmap();
// BUILD TEXTURES IF NECESSARY
if (!gl.glIsTexture(textureID)) {
textureID = createTexture(gl, getImage(), false);
// prerenderToTexture(gl);
}
if (!gl.glIsTexture(grainTextureID)) {
createGrainTexture(gl);
}
// RENDER TILE FROM DISPLAY LIST, OR ELSE BUILD DISPLAY LIST
if (gl.glIsList(displaylistID)) {
gl.glCallList(displaylistID);
} else {
displaylistID = gl.glGenLists(1);
gl.glNewList(displaylistID, GL_COMPILE_AND_EXECUTE);
gl.glActiveTexture(GL_TEXTURE0);
gl.glEnable(GL_TEXTURE_2D);
gl.glBindTexture(GL_TEXTURE_2D, grainTextureID);
gl.glActiveTexture(GL_TEXTURE1);
gl.glEnable(GL_TEXTURE_2D);
gl.glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
gl.glBindTexture(GL_TEXTURE_2D, textureID);
gl.glColor3f(1, 1, 1);
float[] color = new float[3];
float hRes = HEIGHT_RESOLUTION - 1;
float stepSize = bounds.getWidth() / hRes;
Coordinates pos = new Coordinates();
for (int x = 0; x < hRes; x++) {
gl.glBegin(GL_TRIANGLE_STRIP);
for (int y = 0; y <= hRes; y++) {
for (int i = 0; i < 2; i++) {
pos.setLatitude(bounds.getTop() + y * stepSize);
pos.setLongitude(bounds.getLeft() + (x + i) * stepSize);
gl.glMultiTexCoord2f(
GL_TEXTURE0, (x + i) / (float) GRAIN_RESOLUTION, y / (float) GRAIN_RESOLUTION);
gl.glMultiTexCoord2f(GL_TEXTURE1, (x + i) / hRes, y / hRes);
float height = heights[x + HEIGHT_BORDER + i][y + HEIGHT_BORDER];
getHeightColor(color, height);
float shade = getShade(x + i, y, stepSize);
gl.glColor3f(color[0] * shade, color[1] * shade, color[2] * shade);
gl.glVertex3f(pos.getLongitude(), pos.getLatitude(), height);
}
}
gl.glEnd();
}
gl.glDisable(GL_TEXTURE_2D);
gl.glActiveTexture(GL_TEXTURE0);
renderPOIs(gl);
gl.glEndList();
}
}
public void copyTex(GLTexture srcTex, GLTexture destTex) {
float uscale = srcTex.getMaxTextureCoordS();
float vscale = srcTex.getMaxTextureCoordT();
float cx = 0.0f;
float sx = +1.0f;
if (destTex.isFlippedX()) {
cx = 1.0f;
sx = -1.0f;
}
float cy = 0.0f;
float sy = +1.0f;
if (destTex.isFlippedY()) {
cy = 1.0f;
sy = -1.0f;
}
gl.glEnable(srcTex.getTextureTarget());
gl.glActiveTexture(GL.GL_TEXTURE0);
gl.glBindTexture(srcTex.getTextureTarget(), srcTex.getTextureID());
pushFramebuffer();
setFramebuffer(FBO);
FBO.setDrawBuffer(destTex.getTextureTarget(), destTex.getTextureID());
saveView();
setOrthographicView(destTex.width, destTex.height);
gl.glEnable(srcTex.getTextureTarget());
gl.glActiveTexture(GL.GL_TEXTURE0);
gl.glBindTexture(srcTex.getTextureTarget(), srcTex.getTextureID());
gl.glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
gl.glBegin(GL.GL_QUADS);
gl.glTexCoord2f((cx + sx * 0.0f) * uscale, (cy + sy * 0.0f) * vscale);
gl.glVertex2f(0.0f, 0.0f);
gl.glTexCoord2f((cx + sx * 1.0f) * uscale, (cy + sy * 0.0f) * vscale);
gl.glVertex2f(srcTex.width, 0.0f);
gl.glTexCoord2f((cx + sx * 1.0f) * uscale, (cy + sy * 1.0f) * vscale);
gl.glVertex2f(srcTex.width, srcTex.height);
gl.glTexCoord2f((cx + sx * 0.0f) * uscale, (cy + sy * 1.0f) * vscale);
gl.glVertex2f(0.0f, srcTex.height);
gl.glEnd();
gl.glBindTexture(srcTex.getTextureTarget(), 0);
restoreView();
popFramebuffer();
}
private void display(GL gl, GLU glu, final JoglFrameBufferObject theFBO) {
final int w = theFBO.getPixelWidth();
final int h = theFBO.getPixelHeight();
/* bind position data */
gl.glEnableClientState(GL.GL_VERTEX_ARRAY);
gl.glBindBuffer(GL.GL_ARRAY_BUFFER, _myVBO);
gl.glVertexPointer(4, GL.GL_FLOAT, 0, 0);
/* bind point size data */
_myShaderManager.enable(_myPointSpriteShader);
final int myPointSizeAttrib =
gl.glGetAttribLocation(_myPointSpriteShader.getOpenGLID(), "vertexAttribute");
gl.glEnableVertexAttribArray(myPointSizeAttrib);
gl.glBindBuffer(GL.GL_ARRAY_BUFFER, _myIBO);
gl.glVertexAttribPointer(myPointSizeAttrib, 3, GL.GL_FLOAT, false, 0, 0);
gl.glEnable(GL.GL_VERTEX_PROGRAM_POINT_SIZE_ARB);
/* --- */
final JoglFrameBufferObject READ_FBO = _myFBO;
_myShaderManager.setUniform(
_myPointSpriteShader,
"textureVelocity",
READ_FBO.additional_texture(BufferInfo.SECONDARY).getTextureUnit() - GL.GL_TEXTURE0);
_myShaderManager.setUniform(_myPointSpriteShader, "velocityThreshold", velocity_threshold);
_myShaderManager.setUniform(_myPointSpriteShader, "sizeThreshold", size_threshold);
_myShaderManager.setUniform(_myPointSpriteShader, "pointSize", point_size);
_myShaderManager.setUniform(_myPointSpriteShader, "flowdirection", flow_direction);
_myShaderManager.setUniform(_myPointSpriteShader, "collisionratio", collision_ratio);
gl.glActiveTexture(READ_FBO.additional_texture(BufferInfo.SECONDARY).getTextureUnit());
gl.glBindTexture(
READ_FBO.additional_texture(BufferInfo.SECONDARY).getTextureTarget(),
READ_FBO.additional_texture(BufferInfo.SECONDARY).getTextureID());
JoglUtil.printGLError(gl, glu, "binding texture", true);
gl.glDrawArrays(GL.GL_POINTS, 0, w * h);
gl.glBindBuffer(GL.GL_ARRAY_BUFFER, 0);
gl.glDisableClientState(GL.GL_VERTEX_ARRAY);
gl.glDisableVertexAttribArray(myPointSizeAttrib);
_myShaderManager.disable();
gl.glDisable(GL.GL_VERTEX_PROGRAM_POINT_SIZE_ARB);
gl.glBindTexture(READ_FBO.additional_texture(BufferInfo.SECONDARY).getTextureTarget(), 0);
JoglUtil.printGLError(gl, glu, "display()", true);
}
/**
* 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 texsel(int id) {
if (id != sh.curtex) {
HavenPanel.texmiss++;
if (id == -1) {
gl.glDisable(GL.GL_TEXTURE_2D);
} else {
gl.glEnable(GL.GL_TEXTURE_2D);
gl.glBindTexture(GL.GL_TEXTURE_2D, id);
}
sh.curtex = id;
} else {
HavenPanel.texhit++;
}
}
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]);
}
public void setTexture(int unit, Texture tex) {
if (unit != 0 || tex.getType() != Texture.Type.TwoDimensional) {
// throw new UnsupportedOperationException();
return;
}
Image image = tex.getImage();
if (image.isUpdateNeeded()
|| (image.isGeneratedMipmapsRequired() && !image.isMipmapsGenerated())) {
updateTexImageData(image, tex.getType(), unit);
}
int texId = image.getId();
assert texId != -1;
Image[] textures = context.boundTextures;
int type = convertTextureType(tex.getType());
// if (!context.textureIndexList.moveToNew(unit)) {
// if (context.boundTextureUnit != unit){
// gl.glActiveTexture(GL.GL_TEXTURE0 + unit);
// context.boundTextureUnit = unit;
// }
// gl.glEnable(type);
// }
// if (context.boundTextureUnit != unit) {
// gl.glActiveTexture(GL.GL_TEXTURE0 + unit);
// context.boundTextureUnit = unit;
// }
if (textures[unit] != image) {
GL gl = GLContext.getCurrentGL();
gl.glEnable(type);
gl.glBindTexture(type, texId);
textures[unit] = image;
statistics.onTextureUse(image, true);
} else {
statistics.onTextureUse(image, false);
}
setupTextureParams(tex);
}
public final void unbindTexture(GL gl) {
gl.glBindTexture(GL.GL_TEXTURE_2D, 0);
}
public final void bindTexture(GL gl) {
gl.glBindTexture(GL.GL_TEXTURE_2D, textureId);
}
/**
* 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();
}
protected void drawIcon(DrawContext dc) {
if (this.getIconFilePath() == null) return;
GL gl = dc.getGL();
OGLStackHandler ogsh = new OGLStackHandler();
try {
// Initialize texture if necessary
Texture iconTexture = dc.getTextureCache().getTexture(this.getIconFilePath());
if (iconTexture == null) {
this.initializeTexture(dc);
iconTexture = dc.getTextureCache().getTexture(this.getIconFilePath());
if (iconTexture == null) {
String msg = Logging.getMessage("generic.ImageReadFailed");
Logging.logger().finer(msg);
return;
}
}
gl.glDisable(GL.GL_DEPTH_TEST);
double width = this.getScaledIconWidth();
double height = this.getScaledIconHeight();
// Load a parallel projection with xy dimensions (viewportWidth, viewportHeight)
// into the GL projection matrix.
java.awt.Rectangle viewport = dc.getView().getViewport();
ogsh.pushProjectionIdentity(gl);
double maxwh = width > height ? width : height;
gl.glOrtho(0d, viewport.width, 0d, viewport.height, -0.6 * maxwh, 0.6 * maxwh);
// Translate and scale
ogsh.pushModelviewIdentity(gl);
double scale = this.computeScale(viewport);
Vec4 locationSW = this.computeLocation(viewport, scale);
gl.glTranslated(locationSW.x(), locationSW.y(), locationSW.z());
// Scale to 0..1 space
gl.glScaled(scale, scale, 1);
gl.glScaled(width, height, 1d);
if (!dc.isPickingMode()) {
gl.glEnable(GL.GL_BLEND);
gl.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);
// Draw background color behind the map
gl.glColor4ub(
(byte) this.backColor.getRed(),
(byte) this.backColor.getGreen(),
(byte) this.backColor.getBlue(),
(byte) (this.backColor.getAlpha() * this.getOpacity()));
dc.drawUnitQuad();
// Draw world map icon
gl.glColor4d(1d, 1d, 1d, this.getOpacity());
gl.glEnable(GL.GL_TEXTURE_2D);
iconTexture.bind();
TextureCoords texCoords = iconTexture.getImageTexCoords();
dc.drawUnitQuad(texCoords);
gl.glBindTexture(GL.GL_TEXTURE_2D, 0);
gl.glDisable(GL.GL_TEXTURE_2D);
// Draw crosshair for current location
gl.glLoadIdentity();
gl.glTranslated(locationSW.x(), locationSW.y(), locationSW.z());
// Scale to width x height space
gl.glScaled(scale, scale, 1);
// Set color
float[] colorRGB = this.color.getRGBColorComponents(null);
gl.glColor4d(colorRGB[0], colorRGB[1], colorRGB[2], this.getOpacity());
// Draw crosshair
Position groundPos = this.computeGroundPosition(dc, dc.getView());
if (groundPos != null) {
int x = (int) (width * (groundPos.getLongitude().degrees + 180) / 360);
int y = (int) (height * (groundPos.getLatitude().degrees + 90) / 180);
int w = 10; // cross branch length
// Draw
gl.glBegin(GL.GL_LINE_STRIP);
gl.glVertex3d(x - w, y, 0);
gl.glVertex3d(x + w + 1, y, 0);
gl.glEnd();
gl.glBegin(GL.GL_LINE_STRIP);
gl.glVertex3d(x, y - w, 0);
gl.glVertex3d(x, y + w + 1, 0);
gl.glEnd();
}
// Draw view footprint in map icon space
if (this.showFootprint) {
this.footPrintPositions = this.computeViewFootPrint(dc, 32);
if (this.footPrintPositions != null) {
gl.glBegin(GL.GL_LINE_STRIP);
LatLon p1 = this.footPrintPositions.get(0);
for (LatLon p2 : this.footPrintPositions) {
int x = (int) (width * (p2.getLongitude().degrees + 180) / 360);
int y = (int) (height * (p2.getLatitude().degrees + 90) / 180);
// Draw
if (LatLon.locationsCrossDateline(p1, p2)) {
int y1 = (int) (height * (p1.getLatitude().degrees + 90) / 180);
gl.glVertex3d(x < width / 2 ? width : 0, (y1 + y) / 2, 0);
gl.glEnd();
gl.glBegin(GL.GL_LINE_STRIP);
gl.glVertex3d(x < width / 2 ? 0 : width, (y1 + y) / 2, 0);
}
gl.glVertex3d(x, y, 0);
p1 = p2;
}
gl.glEnd();
}
}
// Draw 1px border around and inside the map
gl.glBegin(GL.GL_LINE_STRIP);
gl.glVertex3d(0, 0, 0);
gl.glVertex3d(width, 0, 0);
gl.glVertex3d(width, height - 1, 0);
gl.glVertex3d(0, height - 1, 0);
gl.glVertex3d(0, 0, 0);
gl.glEnd();
} else {
// Picking
this.pickSupport.clearPickList();
this.pickSupport.beginPicking(dc);
// Where in the world are we picking ?
Position pickPosition =
computePickPosition(
dc, locationSW, new Dimension((int) (width * scale), (int) (height * scale)));
Color color = dc.getUniquePickColor();
int colorCode = color.getRGB();
this.pickSupport.addPickableObject(colorCode, this, pickPosition, false);
gl.glColor3ub((byte) color.getRed(), (byte) color.getGreen(), (byte) color.getBlue());
dc.drawUnitQuad();
this.pickSupport.endPicking(dc);
this.pickSupport.resolvePick(dc, dc.getPickPoint(), this);
}
} finally {
dc.restoreDefaultDepthTesting();
dc.restoreDefaultCurrentColor();
if (dc.isPickingMode()) dc.restoreDefaultBlending();
ogsh.pop(gl);
}
}
public void updateTexImageData(Image img, Texture.Type type, int unit) {
int texId = img.getId();
GL gl = GLContext.getCurrentGL();
if (texId == -1) {
// create texture
gl.glGenTextures(1, ib1);
texId = ib1.get(0);
img.setId(texId);
objManager.registerObject(img);
statistics.onNewTexture();
}
// bind texture
int target = convertTextureType(type);
// if (context.boundTextureUnit != unit) {
// glActiveTexture(GL_TEXTURE0 + unit);
// context.boundTextureUnit = unit;
// }
if (context.boundTextures[unit] != img) {
gl.glEnable(target);
gl.glBindTexture(target, texId);
context.boundTextures[unit] = img;
statistics.onTextureUse(img, true);
}
// Check sizes if graphics card doesn't support NPOT
if (!gl.isExtensionAvailable("GL_ARB_texture_non_power_of_two") && img.isNPOT()) {
// Resize texture to Power-of-2 size
MipMapGenerator.resizeToPowerOf2(img);
}
if (!img.hasMipmaps() && img.isGeneratedMipmapsRequired()) {
// No pregenerated mips available,
// generate from base level if required
// Check if hardware mips are supported
if (gl.isExtensionAvailable("GL_VERSION_1_4")) {
gl.glTexParameteri(target, GL2ES1.GL_GENERATE_MIPMAP, GL.GL_TRUE);
} else {
MipMapGenerator.generateMipMaps(img);
}
img.setMipmapsGenerated(true);
} else {
}
if (img.getWidth() > maxTexSize || img.getHeight() > maxTexSize) {
throw new RendererException(
"Cannot upload texture "
+ img
+ ". The maximum supported texture resolution is "
+ maxTexSize);
}
/*
if (target == GL_TEXTURE_CUBE_MAP) {
List<ByteBuffer> data = img.getData();
if (data.size() != 6) {
logger.log(Level.WARNING, "Invalid texture: {0}\n"
+ "Cubemap textures must contain 6 data units.", img);
return;
}
for (int i = 0; i < 6; i++) {
TextureUtil.uploadTexture(img, GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, i, 0, tdc);
}
} else if (target == EXTTextureArray.GL_TEXTURE_2D_ARRAY_EXT) {
List<ByteBuffer> data = img.getData();
// -1 index specifies prepare data for 2D Array
TextureUtil.uploadTexture(img, target, -1, 0, tdc);
for (int i = 0; i < data.size(); i++) {
// upload each slice of 2D array in turn
// this time with the appropriate index
TextureUtil.uploadTexture(img, target, i, 0, tdc);
}
} else {*/
TextureUtil.uploadTexture(img, target, 0, 0, false);
// }
img.clearUpdateNeeded();
}
/**
* 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) {
}
}
}
}
/**
* Issue ogl commands needed for this component
*
* @param gl The gl context to draw with
*/
public void render(GL gl) {
if (numSources == 0) return;
Integer t_id = textureIdMap.get(gl);
if (t_id == null) {
int[] tex_id_tmp = new int[1];
gl.glGenTextures(1, tex_id_tmp, 0);
textureIdMap.put(gl, new Integer(tex_id_tmp[0]));
gl.glBindTexture(textureType, tex_id_tmp[0]);
// Set the flag so that we update later in the method
imageChanged.put(gl, true);
stateChanged.put(gl, true);
updateManagers[0].addContext(gl);
} else {
gl.glBindTexture(textureType, t_id.intValue());
}
if (stateChanged.getState(gl)) {
stateChanged.put(gl, false);
gl.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, 1);
gl.glTexParameteri(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_WRAP_S, boundaryModeS);
gl.glTexParameteri(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_WRAP_T, boundaryModeT);
gl.glTexParameteri(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_WRAP_R, boundaryModeR);
int mode = 0;
switch (magFilter) {
case MAGFILTER_FASTEST:
case MAGFILTER_BASE_LEVEL_POINT:
mode = GL.GL_NEAREST;
break;
case MAGFILTER_NICEST:
case MAGFILTER_BASE_LEVEL_LINEAR:
mode = GL.GL_LINEAR;
break;
default:
System.out.println("Unknown mode in MagFilter: " + magFilter);
}
gl.glTexParameteri(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_MAG_FILTER, mode);
switch (minFilter) {
case MINFILTER_FASTEST:
case MINFILTER_BASE_LEVEL_POINT:
mode = GL.GL_NEAREST;
break;
case MINFILTER_BASE_LEVEL_LINEAR:
mode = GL.GL_LINEAR;
break;
case MINFILTER_MULTI_LEVEL_LINEAR:
mode = GL.GL_LINEAR_MIPMAP_LINEAR;
break;
case MINFILTER_MULTI_LEVEL_POINT:
mode = GL.GL_NEAREST_MIPMAP_NEAREST;
break;
case MINFILTER_NICEST:
mode = (numSources > 1) ? GL.GL_LINEAR_MIPMAP_LINEAR : GL.GL_LINEAR;
break;
default:
System.out.println("Unknown mode in MinFilter: " + minFilter);
}
gl.glTexParameteri(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_MIN_FILTER, mode);
if (anisotropicMode != ANISOTROPIC_MODE_NONE) {
gl.glTexParameterf(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_MAX_ANISOTROPY_EXT, anisotropicDegree);
}
if (priority >= 0) {
gl.glTexParameterf(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_PRIORITY, priority);
}
if (borderColor != null) {
gl.glTexParameterfv(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_BORDER_COLOR, borderColor, 0);
}
if (format == FORMAT_DEPTH_COMPONENT) {
gl.glTexParameterf(GL.GL_TEXTURE_3D, GL.GL_DEPTH_TEXTURE_MODE, depthComponentMode);
gl.glTexParameterf(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_COMPARE_MODE, compareMode);
gl.glTexParameterf(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_COMPARE_FUNC, compareFunction);
}
}
if (imageChanged.getState(gl)) {
imageChanged.put(gl, false);
TextureComponent3D img = (TextureComponent3D) sources[0];
int width = img.getWidth();
int height = img.getHeight();
int depth = img.getDepth();
int num_levels = (mipMapMode == MODE_BASE_LEVEL) ? 1 : img.getNumLevels();
for (int i = 0; i < num_levels; i++) {
ByteBuffer pixels = img.getData(i);
pixels.rewind();
int comp_format = img.getFormat(i);
int int_format = GL.GL_RGB;
int ext_format = GL.GL_RGB;
switch (comp_format) {
case TextureComponent.FORMAT_RGB:
int_format = GL.GL_RGB;
ext_format = GL.GL_RGB;
break;
case TextureComponent.FORMAT_RGBA:
int_format = GL.GL_RGBA;
ext_format = GL.GL_RGBA;
break;
case TextureComponent.FORMAT_BGR:
int_format = GL.GL_BGR;
ext_format = GL.GL_BGR;
break;
case TextureComponent.FORMAT_BGRA:
int_format = GL.GL_BGRA;
ext_format = GL.GL_BGRA;
break;
case TextureComponent.FORMAT_INTENSITY_ALPHA:
int_format = GL.GL_LUMINANCE_ALPHA;
ext_format = GL.GL_LUMINANCE_ALPHA;
break;
case TextureComponent.FORMAT_SINGLE_COMPONENT:
switch (format) {
case FORMAT_INTENSITY:
int_format = GL.GL_INTENSITY;
ext_format = GL.GL_LUMINANCE;
break;
case FORMAT_LUMINANCE:
int_format = GL.GL_LUMINANCE;
ext_format = GL.GL_LUMINANCE;
break;
case FORMAT_ALPHA:
int_format = GL.GL_ALPHA;
ext_format = GL.GL_ALPHA;
}
break;
}
gl.glTexImage3D(
GL.GL_TEXTURE_3D,
i,
int_format,
width,
height,
depth,
0,
ext_format,
GL.GL_UNSIGNED_BYTE,
pixels);
pixels.clear();
pixels = null;
// TODO: Do we want this? We lose caching but it saves one copy of the texture
// sources[0].clearData(i);
if (width > 1) width = width >> 1;
if (height > 1) height = height >> 1;
if (depth > 1) depth = depth >> 1;
}
}
// Any updates? Do those now
int num_updates = updateManagers[0].getNumUpdatesPending(gl);
if (num_updates != 0) {
TextureUpdateData[] tud = updateManagers[0].getUpdatesAndClear(gl);
for (int i = 0; i < num_updates; i++) {
tud[i].pixels.rewind();
gl.glTexSubImage3D(
GL.GL_TEXTURE_3D,
tud[i].level,
tud[i].x,
tud[i].y,
tud[i].z,
tud[i].width,
tud[i].height,
tud[i].depth,
tud[i].format,
GL.GL_UNSIGNED_BYTE,
tud[i].pixels);
}
}
}
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);
}