Bitmap Routines

AllegroGL provides a function to set color depth for video bitmaps. More...

Video Bitmap Rountines

• GLint allegro_gl_set_video_bitmap_color_depth (int bpp)

  Sets the color depth you'd like AllegroGL to use for video bitmaps.
  

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Detailed Description

AllegroGL provides a function to set color depth for video bitmaps.

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Function Documentation

GLint allegro_gl_set_video_bitmap_color_depth

(

int

bpp

)

Sets the color depth you'd like AllegroGL to use for video bitmaps.

This function lets you create video bitmaps of any color depth using allegro's create_video_bitmap(). You can create a RGBA8 bitmap and take advantage of hardware accelerated blending, no matter what the current color depth is. This call will affect all subsequent calls to create_video_bitmap().

Default value for the video bitmap color depth if the color depth of the screen bitmap. To revert to the default color depth, pass -1.

Parameters:

bpp

Color depth in btis per pixel.

Returns:

The previous value of the video bitmap color depth.

Definition at line 423 of file videovtb.c.

References __allegro_gl_video_bitmap_bpp.

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