public static int loadTiledTexture(int file) {
GL.glGenTextures(1, singleID, 0);
GL.glBindTexture(GL.GL_TEXTURE_2D, singleID[0]);
GL.glTexParameterf(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_LINEAR);
GL.glTexParameterf(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_LINEAR);
GL.glTexParameterf(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_S, GL.GL_REPEAT);
GL.glTexParameterf(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_T, GL.GL_REPEAT);
InputStream is = Resource.getResInputStream(file);
Bitmap bitmap = null;
try {
bitmap = BitmapFactory.decodeStream(is);
} catch (Exception e) {
Log.e(TAG, "Could not read texture file " + file, e);
return 0;
} finally {
try {
is.close();
} catch (Exception e) {
Log.e(TAG, "Error closing stream", e);
}
}
if (bitmap != null) {
GLUtils.texImage2D(GL.GL_TEXTURE_2D, 0, bitmap, 0);
bitmap.recycle();
} else {
Log.e(TAG, "Could not read bitmap " + file);
return 0;
}
return singleID[0];
}
public static int createGLResource(int type, int param) {
int id = 0;
if (type == GL_TEXTURE_OBJECT) {
int[] temp = new int[1];
gl.glGenTextures(1, temp, 0);
id = temp[0];
glTextureObjects.add(id);
} else if (type == GL_VERTEX_BUFFER) {
int[] temp = new int[1];
gl.glGenBuffersARB(1, temp, 0);
id = temp[0];
glVertexBuffers.add(id);
} else if (type == GL_FRAME_BUFFER) {
int[] temp = new int[1];
gl.glGenFramebuffersEXT(1, temp, 0);
id = temp[0];
glFrameBuffers.add(id);
} else if (type == GL_RENDER_BUFFER) {
int[] temp = new int[1];
gl.glGenRenderbuffersEXT(1, temp, 0);
id = temp[0];
glRenderBuffers.add(id);
} else if (type == GLSL_PROGRAM) {
id = gl.glCreateProgram();
glslPrograms.add(id);
} else if (type == GLSL_SHADER) {
id = gl.glCreateShader(param);
glslShaders.add(id);
}
return id;
}
public static int loadMipMappedTexture(Bitmap bitmap) {
GL.glGenTextures(1, singleID, 0);
int textureID = singleID[0];
GL.glBindTexture(GL.GL_TEXTURE_2D, textureID);
GL.glTexParameterf(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_LINEAR_MIPMAP_LINEAR);
GL.glTexParameterf(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_LINEAR);
GL.glTexParameterf(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_S, GL.GL_REPEAT);
GL.glTexParameterf(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_T, GL.GL_REPEAT);
if (autoMipMap) {
// To use automatic mipmap generation
GL.glTexParameterf(GL.GL_TEXTURE_2D, GL.GL_GENERATE_MIPMAP, GL.GL_TRUE);
GLUtils.texImage2D(GL.GL_TEXTURE_2D, 0, bitmap, 0);
return textureID;
}
// Original code is buggy on certain devices ("HTC Desire S", "Motorola Milestone (Droid) 3
// XT860 Android 2.3.5 Gingerbread")
// Need conversion as a workaround
Bitmap oldBitmap = bitmap;
bitmap = oldBitmap.copy(Bitmap.Config.ARGB_8888, true);
if (bitmap == null) return 0;
oldBitmap.recycle();
int level = 0;
int height = bitmap.getHeight();
int width = bitmap.getWidth();
while (height >= 1 || width >= 1) {
// First of all, generate the texture from our bitmap and set it to the according level
GLUtils.texImage2D(GL.GL_TEXTURE_2D, level, bitmap, 0);
if (height == 1 && width == 1) break;
// Increase the mipmap level
level++;
height /= 2;
if (height == 0) height = 1;
width /= 2;
if (width == 0) width = 1;
Bitmap bitmap2 = Bitmap.createScaledBitmap(bitmap, width, height, true);
// Clean up
bitmap.recycle();
bitmap = bitmap2;
}
return textureID;
}
/**
* Creates a new texture ID.
*
* @param gl the GL object associated with the current OpenGL context
* @return a new texture ID
*/
private static int createTextureID(GL gl) {
int[] tmp = new int[1];
gl.glGenTextures(1, tmp, 0);
return tmp[0];
}
public static int loadTexture(Bitmap bitmap) {
GL.glGenTextures(1, singleID, 0);
loadTexture(singleID[0], bitmap);
return singleID[0];
}
public static int loadTexture(String filePath) {
GL.glGenTextures(1, singleID, 0);
loadTexture(singleID[0], filePath);
return singleID[0];
}
public static int loadTexture(int file) {
GL.glGenTextures(1, singleID, 0);
loadTexture(singleID[0], file);
return singleID[0];
}