Dynamically Access Bitmaps in ImageMaps

#1 Okay,
after a fair bit of noodling I'm getting closer to a solution. The srcBitmaps I'm writing too are actually the bit maps. The problem seems to be in updating the textures which I've fiddled with a bit but arent making any progress. So to reframe my question:

1/ I write a new pixel value into the instance of the srcBitmap.
2/ I then need to make this altered bitMap be written to the texture on screen.

Can anyone give me suggestions as to what steps I need to take to do this.

Heres some stuff I've tried.


1/ Load the srcbitmap, change the pixel value, then call loadTexture. This has the effect of returning the srcBitmap to its original state.

2/ Copying the altered bitMap into the Tetxures biitmap field. This seems to do nothing.

I keep thinking this shouldn't be as difficult as I'm making it and maybe I'm barking up the wrong tree.

Any idea or pointer would be greatly appreciated.

Tim

#2 Heres the solution, I worked out its better to avoid the src bit map and just work directly with the texture bitmap. This actually effects all instances of the image map.

void t2dImageMapDatablock::getTexBitmapColor(U32 frame, const U32 x, const U32 y, ColorI& rColor)
	{
		TextureHandle tex = getImageMapFrameTexture(frame);
		GBitmap* bmp = tex.getBitmap();

		bmp->getColor(x, y, rColor);

	}

	void t2dImageMapDatablock::setTexBitmapColor(U32 frame, const U32 x, const U32 y, ColorI& rColor)
	{
		TextureHandle tex = getImageMapFrameTexture(frame);
		GBitmap* bmp = tex.getBitmap();

		bmp->setColor(x, y, rColor);

		tex.refresh();

	}

ConsoleMethod(t2dImageMapDatablock, getTexBitmapColor,  const char*, 5, 5, " (vect color) - Get texel color at index.")
{
	S32 frame = dAtoi(argv[2]);
	S32 x = dAtoi(argv[3]);
	S32 y = dAtoi(argv[4]);

	ColorI color;

	// Get Texture Color
	object->getTexBitmapColor(frame, x, y, color);

       // Create Returnable Buffer.
       char* pBuffer = Con::getReturnBuffer(32);

      // Format Buffer.
       dSprintf(pBuffer, 32, "%d %d %d %d", color.red, color.green, color.blue, color.alpha );

      // Return Color
     return pBuffer;
}

//-----------------------------------------------------------------------------
// Set ImageMap Texture Colour.
//-----------------------------------------------------------------------------

ConsoleMethod(t2dImageMapDatablock, setTexBitmapColor,  void, 9, 9, " (vect color) - Set texel color at index.")
{
	S32 frame = dAtoi(argv[2]);
	S32 x = dAtoi(argv[3]);
	S32 y = dAtoi(argv[4]);

	ColorI color;

	color.red	= dAtoi(argv[5]);
	color.green = dAtoi(argv[6]);
	color.blue	= dAtoi(argv[7]);
	color.alpha	= dAtoi(argv[8]);

	// Set Texture Color
	object->setTexBitmapColor(frame, x, y, color);
}

#3 4 years late. but thank you !!