我正在使用以下代码.图像被保存,但它是黑色的.
请看我的代码,告诉我我做错了什么.
我在菜单中使用这个代码.
请看我的代码,告诉我我做错了什么.
我在菜单中使用这个代码.
- case R.id.id_menu_Save:
- Bitmap bmp = SavePixels(0,800,400,CCDirector.sharedDirector().gl);
- File file = new File("/sdcard/test.jpg");
- try
- {
- file.createNewFile();
- FileOutputStream fos = new FileOutputStream(file);
- bmp.compress(CompressFormat.JPEG,100,fos);
- Toast.makeText(getApplicationContext(),"Image Saved",0).show();
- Log.i("Menu Save Button","Image saved as JPEG");
- }
- catch (Exception e)
- {
- e.printStackTrace();
- }
- break;
这是我的保存图像功能.
- public static Bitmap SavePixels(int x,int y,int w,int h,GL10 gl)
- {
- int b[]=new int[w*(y+h)];
- int bt[]=new int[w*h];
- IntBuffer ib=IntBuffer.wrap(b);
- ib.position(0);
- gl.glReadPixels(x,w,y+h,GL10.GL_RGBA,GL10.GL_UNSIGNED_BYTE,ib);
- for(int i=0,k=0; i<h; i++,k++)
- {//remember,that OpenGL bitmap is incompatible with Android bitmap
- //and so,some correction need.
- for(int j=0; j<w; j++)
- {
- int pix=b[i*w+j];
- int pb=(pix>>16)&0xff;
- int pr=(pix<<16)&0x00ff0000;
- int pix1=(pix&0xff00ff00) | pr | pb;
- bt[(h-k-1)*w+j]=pix1;
- }
- }
- Bitmap sb = Bitmap.createBitmap(bt,h,Bitmap.Config.ARGB_8888);
- return sb;
- }
除此之外,我想要的是指出我的方向正确.喜欢如果我得到屏幕的像素,我应该探索什么类/实体?
只需将SavePixelx方法更改为:
- public static Bitmap SavePixels(int x,k++)
- {
- //remember,that OpenGL bitmap is incompatible with Android bitmap
- //and so,some correction need.
- for(int j=0; j<w; j++)
- {
- int pix=b[i*w+j];
- int pb=(pix>>16)&0xff;
- int pr=(pix<<16)&0xffff0000;
- int pix1=(pix&0xff00ff00) | pr | pb;
- bt[(h-k-1)*w+j]=pix1;
- }
- }
- Bitmap sb = Bitmap.createBitmap(bt,Bitmap.Config.ARGB_8888);
- return sb;
- }