public static int gluBuild1DMipmaps(
GL gl, int target, int internalFormat, int width, int format, int type, ByteBuffer data) {
int dataPos = data.position();
try {
int[] widthPowerOf2 = new int[1];
int levels;
int[] dummy = new int[1];
int rc = checkMipmapArgs(internalFormat, format, type);
if (rc != 0) {
return (rc);
}
if (width < 1) {
return (GLU.GLU_INVALID_VALUE);
}
closestFit(gl, target, width, 1, internalFormat, format, type, widthPowerOf2, dummy);
levels = computeLog(widthPowerOf2[0]);
return (BuildMipmap.gluBuild1DMipmapLevelsCore(
gl, target, internalFormat, width, widthPowerOf2[0], format, type, 0, 0, levels, data));
} finally {
data.position(dataPos);
}
}
public static int gluBuild1DMipmapLevels(
GL gl,
int target,
int internalFormat,
int width,
int format,
int type,
int userLevel,
int baseLevel,
int maxLevel,
ByteBuffer data) {
int dataPos = data.position();
try {
int levels;
int rc = checkMipmapArgs(internalFormat, format, type);
if (rc != 0) {
return (rc);
}
if (width < 1) {
return (GLU.GLU_INVALID_VALUE);
}
levels = computeLog(width);
levels += userLevel;
if (!isLegalLevels(userLevel, baseLevel, maxLevel, levels)) {
return (GLU.GLU_INVALID_VALUE);
}
return (BuildMipmap.gluBuild1DMipmapLevelsCore(
gl,
target,
internalFormat,
width,
width,
format,
type,
userLevel,
baseLevel,
maxLevel,
data));
} finally {
data.position(dataPos);
}
}
public static int gluBuild3DMipmaps(
GL gl,
int target,
int internalFormat,
int width,
int height,
int depth,
int format,
int type,
ByteBuffer data) {
int dataPos = data.position();
try {
int[] widthPowerOf2 = new int[1];
int[] heightPowerOf2 = new int[1];
int[] depthPowerOf2 = new int[1];
int level, levels;
int rc = checkMipmapArgs(internalFormat, format, type);
if (rc != 0) {
return (rc);
}
if (width < 1 || height < 1 || depth < 1) {
return (GLU.GLU_INVALID_VALUE);
}
if (type == GL2.GL_BITMAP) {
return (GLU.GLU_INVALID_ENUM);
}
closestFit3D(
gl,
target,
width,
height,
depth,
internalFormat,
format,
type,
widthPowerOf2,
heightPowerOf2,
depthPowerOf2);
levels = computeLog(widthPowerOf2[0]);
level = computeLog(heightPowerOf2[0]);
if (level > levels) {
levels = level;
}
level = computeLog(depthPowerOf2[0]);
if (level > levels) {
levels = level;
}
return (BuildMipmap.gluBuild3DMipmapLevelsCore(
gl,
target,
internalFormat,
width,
height,
depth,
widthPowerOf2[0],
heightPowerOf2[0],
depthPowerOf2[0],
format,
type,
0,
0,
levels,
data));
} finally {
data.position(dataPos);
}
}
public static int gluBuild2DMipmaps(
GL gl,
int target,
int internalFormat,
int width,
int height,
int format,
int type,
Object data) {
int dataPos = 0;
int[] widthPowerOf2 = new int[1];
int[] heightPowerOf2 = new int[1];
int level, levels;
int rc = checkMipmapArgs(internalFormat, format, type);
if (rc != 0) {
return (rc);
}
if (width < 1 || height < 1) {
return (GLU.GLU_INVALID_VALUE);
}
closestFit(
gl, target, width, height, internalFormat, format, type, widthPowerOf2, heightPowerOf2);
levels = computeLog(widthPowerOf2[0]);
level = computeLog(heightPowerOf2[0]);
if (level > levels) {
levels = level;
}
// PointerWrapper pointer = PointerWrapperFactory.getPointerWrapper( data );
ByteBuffer buffer = null;
if (data instanceof ByteBuffer) {
buffer = (ByteBuffer) data;
dataPos = buffer.position();
} else if (data instanceof byte[]) {
byte[] array = (byte[]) data;
buffer = ByteBuffer.allocateDirect(array.length);
buffer.put(array);
} else if (data instanceof short[]) {
short[] array = (short[]) data;
buffer = ByteBuffer.allocateDirect(array.length * 2);
ShortBuffer sb = buffer.asShortBuffer();
sb.put(array);
} else if (data instanceof int[]) {
int[] array = (int[]) data;
buffer = ByteBuffer.allocateDirect(array.length * 4);
IntBuffer ib = buffer.asIntBuffer();
ib.put(array);
} else if (data instanceof float[]) {
float[] array = (float[]) data;
buffer = ByteBuffer.allocateDirect(array.length * 4);
FloatBuffer fb = buffer.asFloatBuffer();
fb.put(array);
}
try {
return (BuildMipmap.gluBuild2DMipmapLevelsCore(
gl,
target,
internalFormat,
width,
height,
widthPowerOf2[0],
heightPowerOf2[0],
format,
type,
0,
0,
levels,
buffer));
} finally {
buffer.position(dataPos);
}
}
