Imagination PowerVR SDK Blog

2D Acceleration


#1

How can you do 2D alpha blending on SGX 350?

Is the OpenVG Linux driver made ontop of OpenGL ES?

I tried to use OpenGL 2.0 emulator to blit textures but it didn't give me the excepted result.

Here is a screenshot of the orginal, GL_LINEAR and GL_NEAREST:

Here is the code for this: http://pastebin.com/m49d636e6

I'm just wondering what I should use for 2D acceleration...




#2

Hi,





Are you sure your viewport size is actually 800x480? In windowed environments you have to be careful to set the client area of the window instead of the outer size which includes title bar and borders.





Regards,


Georg


#3

Yes that was it Big%20smile. It has been too long since I messed with WinAPI.