/**
* Constructor.
*
* @param gl the used OpenGl context.
*/
public UniqueColor(GL gl) {
this.gl = gl;
int[] colorBits = new int[3];
gl.glGetIntegerv(GL.GL_RED_BITS, colorBits, 0);
gl.glGetIntegerv(GL.GL_GREEN_BITS, colorBits, 1);
gl.glGetIntegerv(GL.GL_BLUE_BITS, colorBits, 2);
redSize = 1 << colorBits[0];
greenSize = 1 << colorBits[1];
blueSize = 1 << colorBits[2];
}
public GLState(GL gl) {
if (INSTANCES_COUNT == 0) {
GLState.gl = gl;
glTextureObjects = new HashSet<Integer>();
glVertexBuffers = new HashSet<Integer>();
glFrameBuffers = new HashSet<Integer>();
glRenderBuffers = new HashSet<Integer>();
glslPrograms = new HashSet<Integer>();
glslShaders = new HashSet<Integer>();
cgContexts = new HashSet<Object>();
cgPrograms = new HashSet<Object>();
cgEffects = new HashSet<Object>();
getVersionNumbers();
getAvailableExtensions();
int[] val = {0};
gl.glGetIntegerv(GL.GL_MAX_COLOR_ATTACHMENTS_EXT, val, 0);
glMaxColorAttach = val[0];
glu = new GLU();
FBO = new GLFramebufferObject(gl);
fboStack = new Stack<GLFramebufferObject>();
destTexStack = new Stack<GLTexture[]>();
screenFBO = new GLFramebufferObject(gl, true);
currentFBO = screenFBO;
emptyDestTex = new GLTexture[0];
currentDestTex = emptyDestTex;
singleFBO = false;
}
INSTANCES_COUNT++;
}
protected void initializeTexture(DrawContext dc) {
Texture iconTexture = dc.getTextureCache().getTexture(this.getIconFilePath());
if (iconTexture != null) return;
try {
InputStream iconStream = this.getClass().getResourceAsStream("/" + this.getIconFilePath());
if (iconStream == null) {
File iconFile = new File(this.iconFilePath);
if (iconFile.exists()) {
iconStream = new FileInputStream(iconFile);
}
}
iconTexture = TextureIO.newTexture(iconStream, false, null);
iconTexture.bind();
this.iconWidth = iconTexture.getWidth();
this.iconHeight = iconTexture.getHeight();
dc.getTextureCache().put(this.getIconFilePath(), iconTexture);
} catch (IOException e) {
String msg = Logging.getMessage("layers.IOExceptionDuringInitialization");
Logging.logger().severe(msg);
throw new WWRuntimeException(msg, e);
}
GL gl = dc.getGL();
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);
// Enable texture anisotropy, improves "tilted" world map quality.
int[] maxAnisotropy = new int[1];
gl.glGetIntegerv(GL.GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, maxAnisotropy, 0);
gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAX_ANISOTROPY_EXT, maxAnisotropy[0]);
}
public void displayInit(Point pickPoint) {
gl.glShadeModel(GL.GL_SMOOTH);
gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
gl.glMatrixMode(GL.GL_PROJECTION);
gl.glLoadIdentity();
if (pickPoint != null) {
int[] vp = new int[4];
gl.glGetIntegerv(GL.GL_VIEWPORT, vp, 0);
GLU glu = new GLU();
int px = (int) pickPoint.getX();
int py = (int) (vp[3] - pickPoint.getY());
glu.gluPickMatrix(px, py, 1e-2, 1e-2, vp, 0);
}
gl.glOrtho(0, bounds.getWidth(), 0, bounds.getHeight(), .1, depth);
gl.glMatrixMode(GL.GL_MODELVIEW);
gl.glLoadIdentity();
glu.gluLookAt(0, 0, depth - 0.1, 0, 0, 0, 0, 1, 0);
gl.glInitNames();
gl.glPushName(-1);
}
public void initialize() {
GL gl = GLContext.getCurrentGL();
if (gl.isExtensionAvailable("GL_VERSION_1_2")) {
gl12 = true;
}
// workaround, always assume we support GLSL100
// some cards just don't report this correctly
caps.add(Caps.GLSL100);
// Default values for certain GL state.
gl.getGL2ES1().glShadeModel(GLLightingFunc.GL_SMOOTH);
gl.getGL2().glColorMaterial(GL.GL_FRONT_AND_BACK, GLLightingFunc.GL_DIFFUSE);
gl.glHint(GL2ES1.GL_PERSPECTIVE_CORRECTION_HINT, GL.GL_NICEST);
// Enable rescaling/normaling of normal vectors.
// Fixes lighting issues with scaled models.
if (gl12) {
gl.glEnable(GL2ES1.GL_RESCALE_NORMAL);
} else {
gl.glEnable(GLLightingFunc.GL_NORMALIZE);
}
if (gl.isExtensionAvailable("GL_ARB_texture_non_power_of_two")) {
caps.add(Caps.NonPowerOfTwoTextures);
} else {
logger.log(
Level.WARNING,
"Your graphics card does not "
+ "support non-power-of-2 textures. "
+ "Some features might not work.");
}
gl.glGetIntegerv(GL2ES1.GL_MAX_LIGHTS, ib1);
maxLights = ib1.get(0);
gl.glGetIntegerv(GL.GL_MAX_TEXTURE_SIZE, ib1);
maxTexSize = ib1.get(0);
}
public static ShadowMap getWorldShadowMapInstance(DrawContext dc) {
if (worldShadowMap == null) {
GL gl = dc.getGL();
int[] maxSize = new int[1];
gl.glGetIntegerv(GL.GL_MAX_TEXTURE_SIZE, maxSize, 0);
int texSize = Math.min(maxSize[0], 2048);
worldShadowMap = new ShadowMap(texSize, texSize);
return worldShadowMap;
} else {
return worldShadowMap;
}
}
public void init(GLAutoDrawable drawable) {
GL gl = drawable.getGL();
// test if antialiasing works
int buf[] = new int[1];
int sbuf[] = new int[1];
gl.glGetIntegerv(GL.GL_SAMPLE_BUFFERS, buf, 0);
Log.log(Log.MESSAGE, "OpenGL: Number of sample buffers is " + buf[0]);
gl.glGetIntegerv(GL.GL_SAMPLES, sbuf, 0);
Log.log(Log.MESSAGE, "OpenGL: Number of samples is " + sbuf[0]);
if (buf[0] > 0 && sbuf[0] > 0) {
// antialiasing is working
Log.log(Log.MESSAGE, "OpenGL: This means that antialiasing is working. Antialiasing ON.");
controller.setAntialiasing(true);
} else {
Log.log(
Log.MESSAGE, "OpenGL: This means that antialiasing is not working. Antialiasing OFF.");
controller.setAntialiasing(false);
}
controller.init(gl);
}
/**
* Queries OpenGL for errors in the vertex program. Errors are logged as SEVERE, noting both the
* line number and message.
*/
private static void checkProgramError() {
final GL gl = GLU.getCurrentGL();
if (gl.glGetError() == GL.GL_INVALID_OPERATION) {
// retrieve the error position
final IntBuffer errorloc = BufferUtils.createIntBuffer(16);
gl.glGetIntegerv(GL.GL_PROGRAM_ERROR_POSITION_ARB, errorloc); // TODO Check for integer
logger.severe(
"Error "
+ gl.glGetString(GL.GL_PROGRAM_ERROR_STRING_ARB)
+ " in vertex program on line "
+ errorloc.get(0));
}
}
public Ray() {
GL gl = GLU.getCurrentGL();
double[] modelview = new double[16];
double[] projection = new double[16];
int[] viewport = new int[4];
gl.glGetDoublev(GL.GL_MODELVIEW_MATRIX, modelview, 0);
gl.glGetDoublev(GL.GL_PROJECTION_MATRIX, projection, 0);
gl.glGetIntegerv(GL.GL_VIEWPORT, viewport, 0);
m_delta = new Vector2f(2.0f / viewport[2], 2.0f / viewport[3]);
m_constant =
new Vector2f(
-viewport[0] * 2.0f / viewport[2] - 1.0f, -viewport[1] * 2.0f / viewport[3] - 1.0f);
this.combine_projection_and_modelview(projection, modelview);
}
/**
* compute the max texture size to use
*
* @param gl
* @return
*/
private static int resolveMaxSize(GL gl) {
int[] result = new int[1];
gl.glGetIntegerv(GL.GL_MAX_TEXTURE_SIZE, result, 0);
int maxTexSize = result[0];
return Math.min(maxTexSize, MAX_SAMPLES_PER_TEXTURE);
}
public void init(GLAutoDrawable glAutoDrawable) {
StringBuilder sb = new StringBuilder();
sb.append(gov.nasa.worldwind.Version.getVersion() + "\n");
sb.append("\nSystem Properties\n");
sb.append("Processors: " + Runtime.getRuntime().availableProcessors() + "\n");
sb.append("Free memory: " + Runtime.getRuntime().freeMemory() + " bytes\n");
sb.append("Max memory: " + Runtime.getRuntime().maxMemory() + " bytes\n");
sb.append("Total memory: " + Runtime.getRuntime().totalMemory() + " bytes\n");
for (Map.Entry prop : System.getProperties().entrySet()) {
sb.append(prop.getKey() + " = " + prop.getValue() + "\n");
}
GL gl = glAutoDrawable.getGL();
sb.append("\nOpenGL Values\n");
String oglVersion = gl.glGetString(GL.GL_VERSION);
sb.append("OpenGL version: " + oglVersion + "\n");
String oglVendor = gl.glGetString(GL.GL_VENDOR);
sb.append("OpenGL vendor: " + oglVendor + "\n");
String oglRenderer = gl.glGetString(GL.GL_RENDERER);
sb.append("OpenGL renderer: " + oglRenderer + "\n");
int[] intVals = new int[2];
for (Attr attr : attrs) {
sb.append(attr.name).append(": ");
if (attr.attr instanceof Integer) {
gl.glGetIntegerv((Integer) attr.attr, intVals, 0);
sb.append(intVals[0]).append(intVals[1] > 0 ? ", " + intVals[1] : "");
}
sb.append("\n");
}
String extensionString = gl.glGetString(GL.GL_EXTENSIONS);
String[] extensions = extensionString.split(" ");
sb.append("Extensions\n");
for (String ext : extensions) {
sb.append(" " + ext + "\n");
}
sb.append("\nJOGL Values\n");
String pkgName = "javax.media.opengl";
try {
getClass().getClassLoader().loadClass(pkgName + ".GL");
Package p = Package.getPackage(pkgName);
if (p == null) {
sb.append("WARNING: Package.getPackage(" + pkgName + ") is null\n");
} else {
sb.append(p + "\n");
sb.append("Specification Title = " + p.getSpecificationTitle() + "\n");
sb.append("Specification Vendor = " + p.getSpecificationVendor() + "\n");
sb.append("Specification Version = " + p.getSpecificationVersion() + "\n");
sb.append("Implementation Vendor = " + p.getImplementationVendor() + "\n");
sb.append("Implementation Version = " + p.getImplementationVersion() + "\n");
}
} catch (ClassNotFoundException e) {
sb.append("Unable to load " + pkgName + "\n");
}
this.outputArea.setText(sb.toString());
}
public static int queryGLInteger(int param, GL gl) {
int[] value = new int[1];
gl.glGetIntegerv(param, value, 0);
return value[0];
}
/* 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 display(GLAutoDrawable glDrawable) {
GL gl = glDrawable.getGL();
// Store old matrices
gl.glMatrixMode(GL.GL_MODELVIEW);
gl.glPushMatrix();
gl.glLoadIdentity();
gl.glMatrixMode(GL.GL_PROJECTION);
gl.glPushMatrix();
gl.glLoadIdentity();
gl.glViewport(0, 0, glDrawable.getWidth(), glDrawable.getHeight());
// Store enabled state and disable lighting, texture mapping and the depth buffer
gl.glPushAttrib(GL.GL_ENABLE_BIT);
gl.glDisable(GL.GL_BLEND);
gl.glDisable(GL.GL_LIGHTING);
gl.glDisable(GL.GL_TEXTURE_2D);
gl.glDisable(GL.GL_DEPTH_TEST);
// Retrieve the current viewport and switch to orthographic mode
IntBuffer viewPort = BufferUtil.newIntBuffer(4);
gl.glGetIntegerv(GL.GL_VIEWPORT, viewPort);
glu.gluOrtho2D(0, viewPort.get(2), viewPort.get(3), 0);
// Render the text
gl.glColor3f(1, 1, 1);
int x = OFFSET;
int maxx = 0;
int y = OFFSET + CHAR_HEIGHT;
if (keyboardEntries.size() > 0) {
gl.glRasterPos2i(x, y);
glut.glutBitmapString(GLUT.BITMAP_HELVETICA_12, KEYBOARD_CONTROLS);
maxx =
Math.max(
maxx, OFFSET + glut.glutBitmapLength(GLUT.BITMAP_HELVETICA_12, KEYBOARD_CONTROLS));
y += OFFSET;
x += INDENT;
for (int i = 0; i < keyboardEntries.size(); i++) {
gl.glRasterPos2f(x, y);
String text = (String) keyboardEntries.get(i);
glut.glutBitmapString(GLUT.BITMAP_HELVETICA_12, text);
maxx = Math.max(maxx, OFFSET + glut.glutBitmapLength(GLUT.BITMAP_HELVETICA_12, text));
y += OFFSET;
}
}
if (mouseEntries.size() > 0) {
x = maxx + OFFSET;
y = OFFSET + CHAR_HEIGHT;
gl.glRasterPos2i(x, y);
glut.glutBitmapString(GLUT.BITMAP_HELVETICA_12, MOUSE_CONTROLS);
y += OFFSET;
x += INDENT;
for (int i = 0; i < mouseEntries.size(); i++) {
gl.glRasterPos2f(x, y);
glut.glutBitmapString(GLUT.BITMAP_HELVETICA_12, (String) mouseEntries.get(i));
y += OFFSET;
}
}
// Restore enabled state
gl.glPopAttrib();
// Restore old matrices
gl.glPopMatrix();
gl.glMatrixMode(GL.GL_MODELVIEW);
gl.glPopMatrix();
}
private void updateSubImageImpl(
TextureData data,
int newTarget,
int mipmapLevel,
int dstx,
int dsty,
int srcx,
int srcy,
int width,
int height)
throws GLException {
GL gl = GLU.getCurrentGL();
data.setHaveEXTABGR(gl.isExtensionAvailable("GL_EXT_abgr"));
data.setHaveGL12(gl.isExtensionAvailable("GL_VERSION_1_2"));
Buffer buffer = data.getBuffer();
if (buffer == null && data.getMipmapData() == null) {
// Assume user just wanted to get the Texture object allocated
return;
}
int rowlen = data.getRowLength();
int dataWidth = data.getWidth();
int dataHeight = data.getHeight();
if (data.getMipmapData() != null) {
// Compute the width, height and row length at the specified mipmap level
// Note we do not support specification of the row length for
// mipmapped textures at this point
for (int i = 0; i < mipmapLevel; i++) {
width = Math.max(width / 2, 1);
height = Math.max(height / 2, 1);
dataWidth = Math.max(dataWidth / 2, 1);
dataHeight = Math.max(dataHeight / 2, 1);
}
rowlen = 0;
buffer = data.getMipmapData()[mipmapLevel];
}
// Clip incoming rectangles to what is available both on this
// texture and in the incoming TextureData
if (srcx < 0) {
width += srcx;
srcx = 0;
}
if (srcy < 0) {
height += srcy;
srcy = 0;
}
// NOTE: not sure whether the following two are the correct thing to do
if (dstx < 0) {
width += dstx;
dstx = 0;
}
if (dsty < 0) {
height += dsty;
dsty = 0;
}
if (srcx + width > dataWidth) {
width = dataWidth - srcx;
}
if (srcy + height > dataHeight) {
height = dataHeight - srcy;
}
if (dstx + width > texWidth) {
width = texWidth - dstx;
}
if (dsty + height > texHeight) {
height = texHeight - dsty;
}
checkCompressedTextureExtensions(data);
if (data.isDataCompressed()) {
gl.glCompressedTexSubImage2D(
newTarget,
mipmapLevel,
dstx,
dsty,
width,
height,
data.getInternalFormat(),
buffer.remaining(),
buffer);
} else {
int[] align = new int[1];
int[] rowLength = new int[1];
int[] skipRows = new int[1];
int[] skipPixels = new int[1];
gl.glGetIntegerv(GL.GL_UNPACK_ALIGNMENT, align, 0); // save alignment
gl.glGetIntegerv(GL.GL_UNPACK_ROW_LENGTH, rowLength, 0); // save row length
gl.glGetIntegerv(GL.GL_UNPACK_SKIP_ROWS, skipRows, 0); // save skipped rows
gl.glGetIntegerv(GL.GL_UNPACK_SKIP_PIXELS, skipPixels, 0); // save skipped pixels
gl.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, data.getAlignment());
if (DEBUG && VERBOSE) {
System.out.println("Row length = " + rowlen);
System.out.println("skip pixels = " + srcx);
System.out.println("skip rows = " + srcy);
System.out.println("dstx = " + dstx);
System.out.println("dsty = " + dsty);
System.out.println("width = " + width);
System.out.println("height = " + height);
}
gl.glPixelStorei(GL.GL_UNPACK_ROW_LENGTH, rowlen);
gl.glPixelStorei(GL.GL_UNPACK_SKIP_ROWS, srcy);
gl.glPixelStorei(GL.GL_UNPACK_SKIP_PIXELS, srcx);
gl.glTexSubImage2D(
newTarget,
mipmapLevel,
dstx,
dsty,
width,
height,
data.getPixelFormat(),
data.getPixelType(),
buffer);
gl.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, align[0]); // restore alignment
gl.glPixelStorei(GL.GL_UNPACK_ROW_LENGTH, rowLength[0]); // restore row length
gl.glPixelStorei(GL.GL_UNPACK_SKIP_ROWS, skipRows[0]); // restore skipped rows
gl.glPixelStorei(GL.GL_UNPACK_SKIP_PIXELS, skipPixels[0]); // restore skipped pixels
}
}
/**
* 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();
}
public static void retrieveStoreModes3D(GL gl, PixelStorageModes psm) {
int[] a = new int[1];
gl.glGetIntegerv(GL2GL3.GL_UNPACK_ALIGNMENT, a, 0);
psm.setUnpackAlignment(a[0]);
gl.glGetIntegerv(GL2GL3.GL_UNPACK_ROW_LENGTH, a, 0);
psm.setUnpackRowLength(a[0]);
gl.glGetIntegerv(GL2GL3.GL_UNPACK_SKIP_ROWS, a, 0);
psm.setUnpackSkipRows(a[0]);
gl.glGetIntegerv(GL2GL3.GL_UNPACK_SKIP_PIXELS, a, 0);
psm.setUnpackSkipPixels(a[0]);
gl.glGetIntegerv(GL2GL3.GL_UNPACK_LSB_FIRST, a, 0);
psm.setUnpackLsbFirst((a[0] == 1));
gl.glGetIntegerv(GL2GL3.GL_UNPACK_SWAP_BYTES, a, 0);
psm.setUnpackSwapBytes((a[0] == 1));
gl.glGetIntegerv(GL2GL3.GL_UNPACK_SKIP_IMAGES, a, 0);
psm.setUnpackSkipImages(a[0]);
gl.glGetIntegerv(GL2GL3.GL_UNPACK_IMAGE_HEIGHT, a, 0);
psm.setUnpackImageHeight(a[0]);
gl.glGetIntegerv(GL2GL3.GL_PACK_ALIGNMENT, a, 0);
psm.setPackAlignment(a[0]);
gl.glGetIntegerv(GL2GL3.GL_PACK_ROW_LENGTH, a, 0);
psm.setPackRowLength(a[0]);
gl.glGetIntegerv(GL2GL3.GL_PACK_SKIP_ROWS, a, 0);
psm.setPackSkipRows(a[0]);
gl.glGetIntegerv(GL2GL3.GL_PACK_SKIP_PIXELS, a, 0);
psm.setPackSkipPixels(a[0]);
gl.glGetIntegerv(GL2GL3.GL_PACK_LSB_FIRST, a, 0);
psm.setPackLsbFirst((a[0] == 1));
gl.glGetIntegerv(GL2GL3.GL_PACK_SWAP_BYTES, a, 0);
psm.setPackSwapBytes((a[0] == 1));
gl.glGetIntegerv(GL2GL3.GL_PACK_SKIP_IMAGES, a, 0);
psm.setPackSkipImages(a[0]);
gl.glGetIntegerv(GL2GL3.GL_PACK_IMAGE_HEIGHT, a, 0);
psm.setPackImageHeight(a[0]);
}