Mesa

Last Friday I got kmscube successfully running with mesa and the new etnaviv DRM kernel driver. At this time I got it not really pixel perfect and I spend some nights to get it fixed. It turns out that I need a small mesa hack to get the rendering correct. You may ask why did it so long to get it working? Let me explain it to you. The Vivnate GPU is a so called render-only GPU which does not have any kind of scanout logic in it. It can only render to physical memory and this only in a tiled memory layout. So we need to use the resolve engine found on the GPU to de-tile the rendered image and blit it to the dumb buffer. Currently mesa has no software support for this kind of hardware, but I think that could change soon. ...

Here is the first result of running mesatest_gles on mesa&etna: Following tests are showing good visual results compared to swrast: Hello_Triangle/CH02_HelloTriangle Simple_VertexShader/CH08_SimpleVertexShader CubeVBO/cube_vbo ParticleSystem/CH13_ParticleSystem Viewports/viewports All other are visual corrupted or segfault. So there is still some work done to get all demos up and running.