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Bug 1751

Summary: Direcftb renderer viewport behaviour differs from API description.
Product: SDL Reporter: tomaszewski.p
Component: videoAssignee: Sam Lantinga <slouken>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2    
Version: HG 2.0   
Hardware: x86_64   
OS: Linux   
Attachments: Modifies drawing and blitting functions to include viewport settings.

Description tomaszewski.p 2013-03-10 15:55:13 UTC 
Created attachment 1067 [details]
Modifies drawing and blitting functions to include viewport settings.

According to API description:
SDL_RenderSetViewport - Use this function to set the drawing area for rendering on the current target.

DirectFB renderer in DirectFB_UpdateViewport function just sets clip on surface, instead of moving drawing area.

Attached patch uses set clip rectangle to move {x,y} coordinates during draw and blit operations to be compatible with API description.
Comment 1 Sam Lantinga 2013-03-11 00:10:55 UTC 
Fixed, thanks!
http://hg.libsdl.org/SDL/rev/7c87aa0a189f