TouchGFX 4.25 introduces emulated framebuffer (patent pending), which takes significantly less space in memory by breaking the image to be displayed into chunks and using a memory mapping technique that does away with the graphical RAM on the display itself. Consequently, systems that previously ...
The OpenGL extension, GL_ARB_framebuffer_object provides an interface to create additional non-displayable framebuffer objects (FBO). This framebuffer is called application-created framebuffer in order to distinguish from the default window-system-provided framebuffer. By using framebuffer object (FBO...
The CYG_FB_FLAGS0_LINEAR_FRAMEBUFFER flag must be set. Otherwise framebuffer memory is either not directly accessible or has a non-linear layout. The CYG_FB_FLAGS0_DOUBLE_BUFFER flag must be clear. An efficient double buffer synch operation requires knowing what part of the framebuffer have...
The implementation of the code to transfer partial framebuffer blocks to the display depends on the display interface use. For examples on how this can be done, see the following articles: Conclusion In this article we saw how the partial frame buffer strategy can help lowering the memory ...
I'm actually using two SGDMAs for writing and reading to/from a frame buffer. It works great now that I have a good handle on it. It's nice to be able to setup the descriptors while the last transfer is still taking place. It's also great that the descriptor memory doesn't have ...
A primitive implementation of a tile-based renderer could simply render the entire scene for each tile, clipped to the area covered by the cache. In practice, with large framebuffers and relatively small tiles, this would be very inefficient. Instead, when geometry is submitted for rendering, ...
linux kernel 3.8.11. First, we need to reconfigure linux kernel to include a driver and enable some framebuffer related options. So, run kernel config utility, go to 'Device Drivers' -> 'Graphics support' andmake appropriate changes: cd ~/Projects/my_zedboard_petalinux_project/ -...
backBufferFormat = SDKWrapper::GetFfxSurfaceFormat (GetFramework ()->GetSwapChain ()->GetSwapChainFormat()); ffx::ReturnCode retCode = ffx::CreateContext(frameGenContext, nullptr, createFg, backendDesc); Configure frame generation Configure frame generation by filling out the ffxConfigureDesc...
down horizontal resolution of the input framebuffer (and of course the framebuffer structure that gets registered) to 1080x1080, the rotation works fine (I believe I've tried non-square resolutions too with a lower x resolution and they worked okay, but I'll have to double-check...
Methods, systems and programs for partitioning an RGB gamma ramp frame buffer of a workstation into groupings of bit planes to isolate for independent generation the images of multiple objects display