public static int gluBuild3DMipmapLevels(
GL gl,
int target,
int internalFormat,
int width,
int height,
int depth,
int format,
int type,
int userLevel,
int baseLevel,
int maxLevel,
ByteBuffer data) {
int dataPos = data.position();
try {
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);
}
levels = computeLog(width);
level = computeLog(height);
if (level > levels) {
levels = level;
}
level = computeLog(depth);
if (level > levels) {
levels = level;
}
levels += userLevel;
if (!isLegalLevels(userLevel, baseLevel, maxLevel, levels)) {
return (GLU.GLU_INVALID_VALUE);
}
return (BuildMipmap.gluBuild3DMipmapLevelsCore(
gl,
target,
internalFormat,
width,
height,
depth,
width,
height,
depth,
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);
}
}
