Questions tagged [framebuffer]
In general a framebuffer is a graphic hardware-independent abstraction layer used to display output to a monitor or display.
framebuffer
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How to draw the graph in framebuffer using c language..?
i am new to this linux framebuffer so do anybody guide me to draw the line-graph in framebuffer. And i have the code to draw graph in turbo c but now in linux. So please help me out.
Thank You,
Rahul
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Taking a Screen Shot of an Embedded Linux Framebuffer
I'm running Embedded Linux on an evaluation kit (Zoom OMAP35x Torpedo Development Kit). The board has an LCD and I would like to be able to take screen shots convert them into a gif or png. I can get ...
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Fragment shader rendering to off-screen frame buffer
In a Qt based application I want to execute a fragment shader on two textures (both 1000x1000 pixels).
I draw a rectangle and the fragment shader works fine.
But, now I want to renderer the output ...
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Direct access to linux framebuffer - copyarea
I want to move very quickly a rectangle over a framebuffer in an embedded linux application. I have found that the function cfb_copyarea may be useful. But I cannot find any ioctl over the /dev/fb ...
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Framebuffers, textures and glColor behavior in OpenGL/OpenGL ES
I apologize in advance if this question seems confused. The behaviour I am seeing makes no sense to me.
I have a Framebuffer rendering to a texture. I render solid rectangles of red, green, blue of ...
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How to develop a DirectFB app without leaving X.11 environment
I'm trying to develop a GUI application for an embedded platform, without any windowing whatsoever and I'm doing that with DirectFB, and it suits my needs very fine.
Since the embedded I develop for ...
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OpenGL: How to implement an "eraser" tool?
I'm working on a game for the iPhone that has a drawing/paint mechanic involved and I'm having problems trying to create a tool that would erase things already painted.
The main problem is that the ...
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How to push pixels faster on the iPhone?
I asked before about pixel-pushing, and have now managed to get far enough to get noise to show up on the screen. Here's how I init:
CGDataProviderRef provider;
bitmap = malloc(320*480*4);
provider = ...
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Pushing pixels on the iPhone
What's the fastest way to get a framebuffer and render to in software on the iPhone?
Basically getting into a mode 13h style thing going so I can make some effects? :)
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Dirty Rectangles
Where may one find references on implementing an algorithm for calculating a "dirty rectangle" for minimizing frame buffer updates? A display model that permits arbitrary edits and computes the ...
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