public void setNative(int[] pixels, int x, int y, int w, int h) {
updatePixelBuffer(pixels);
setNative(pixelBuffer, x, y, w, h);
releasePixelBuffer();
}
public void set(int[] pixels, int x, int y, int w, int h, int format) {
if (pixels == null) {
PGraphics.showWarning("The pixels array is null.");
return;
}
if (pixels.length < w * h) {
PGraphics.showWarning(
"The pixel array has a length of "
+ pixels.length
+ ", but it should be at least "
+ w * h);
return;
}
if (pixels.length == 0) {
// Nothing to do (means that w == h == 0) but not an erroneous situation
return;
}
boolean enabledTex = false;
if (!pgl.texturingIsEnabled(glTarget)) {
pgl.enableTexturing(glTarget);
enabledTex = true;
}
pgl.bindTexture(glTarget, glName);
if (usingMipmaps) {
if (PGraphicsOpenGL.autoMipmapGenSupported) {
// Automatic mipmap generation.
loadPixels(w * h);
convertToRGBA(pixels, format, w, h);
updatePixelBuffer(rgbaPixels);
pgl.texSubImage2D(glTarget, 0, x, y, w, h, PGL.RGBA, PGL.UNSIGNED_BYTE, pixelBuffer);
pgl.generateMipmap(glTarget);
} else {
// TODO: finish manual mipmap generation, replacing Bitmap with AWT's BufferedImage,
// making it work in npot textures (embed npot tex into larger pot tex?), subregions,
// and moving GLUtils.texImage2D (originally from Android SDK) into PGL.
// Actually, this whole code should go into PGL, so the Android implementation can
// use Bitmap, and desktop use BufferedImage.
/*
if (w != width || h != height) {
System.err.println("Sorry but I don't know how to generate mipmaps for a subregion.");
return;
}
// Code by Mike Miller obtained from here:
// http://insanitydesign.com/wp/2009/08/01/android-opengl-es-mipmaps/
int w0 = glWidth;
int h0 = glHeight;
int[] argbPixels = new int[w0 * h0];
convertToARGB(pixels, argbPixels, format);
int level = 0;
int denom = 1;
// We create a Bitmap because then we use its built-in filtered downsampling
// functionality.
Bitmap bitmap = Bitmap.createBitmap(w0, h0, Config.ARGB_8888);
bitmap.setPixels(argbPixels, 0, w0, 0, 0, w0, h0);
while (w0 >= 1 || h0 >= 1) {
//First of all, generate the texture from our bitmap and set it to the according level
GLUtils.texImage2D(glTarget, level, bitmap, 0);
// We are done.
if (w0 == 1 && h0 == 1) {
break;
}
// Increase the mipmap level
level++;
denom *= 2;
// Downsampling bitmap. We must eventually arrive to the 1x1 level,
// and if the width and height are different, there will be a few 1D
// texture levels just before.
// This update formula also allows for NPOT resolutions.
w0 = PApplet.max(1, PApplet.floor((float)glWidth / denom));
h0 = PApplet.max(1, PApplet.floor((float)glHeight / denom));
// (see getScaledInstance in AWT Image)
Bitmap bitmap2 = Bitmap.createScaledBitmap(bitmap, w0, h0, true);
// Clean up
bitmap.recycle();
bitmap = bitmap2;
}
*/
loadPixels(w * h);
convertToRGBA(pixels, format, w, h);
updatePixelBuffer(rgbaPixels);
pgl.texSubImage2D(glTarget, 0, x, y, w, h, PGL.RGBA, PGL.UNSIGNED_BYTE, pixelBuffer);
}
} else {
loadPixels(w * h);
convertToRGBA(pixels, format, w, h);
updatePixelBuffer(rgbaPixels);
pgl.texSubImage2D(glTarget, 0, x, y, w, h, PGL.RGBA, PGL.UNSIGNED_BYTE, pixelBuffer);
}
pgl.bindTexture(glTarget, 0);
if (enabledTex) {
pgl.disableTexturing(glTarget);
}
releasePixelBuffer();
releaseRGBAPixels();
updateTexels(x, y, w, h);
}