1af69d88dSmrgRandom list of problems with i915g: 2af69d88dSmrg 3af69d88dSmrg- What does this button do? Figure out LIS7 with regards to depth offset. 4af69d88dSmrg 5af69d88dSmrg- Dies with BadDrawable on GLXFBconfig changes/destruction. Makes piglit totally 6af69d88dSmrg unusable :( Upgrading xserver helped here, it doesn't crash anymore. Still 7af69d88dSmrg broken, it doesn't update the viewport/get new buffers. 8af69d88dSmrg 9af69d88dSmrg- Y-tiling is even more fun. i915c doesn't use it, maybe there's a reason? 10af69d88dSmrg Texture sampling from Y-tiled buffers seems to work, though (save above 11af69d88dSmrg problems). 12af69d88dSmrg RESOLVED: Y-tiling works with the render engine, but not with the blitter. 13af69d88dSmrg Use u_blitter and hw clears (PRIM3D_CLEAR_RECT). 14af69d88dSmrg 15af69d88dSmrg- src/xvmc/i915_structs.h in xf86-video-intel has a few more bits of various 16af69d88dSmrg commands defined. Scavenge them and see what's useful. 17af69d88dSmrg 18af69d88dSmrg- Do smarter remapping. Right now we send everything onto tex coords 0-7. 19af69d88dSmrg We could also use diffuse/specular and pack two sets of 2D coords in a single 20af69d88dSmrg 4D. Is it a big problem though? We're more limited by the # of texture 21af69d88dSmrg indirections and the # of instructions. 22af69d88dSmrg 23af69d88dSmrg- Finish front/back face. We need to add face support to lp_build_system_values_array and use it in draw_llvm.c. 24af69d88dSmrg 25af69d88dSmrg- More optimizations, like replacing ADD + MUL with MAD or use DP2ADD. 26af69d88dSmrg 27af69d88dSmrg- Replace constants and immediates which are 0,1,-1 or a combination of those with a swizzle. 28af69d88dSmrg 29af69d88dSmrg- Schedule instructions to minimize the number of phases. One way is to replace 30af69d88dSmrg R registers responsible for a boundary with U registers to avoid phase 31af69d88dSmrg boundaries. 32af69d88dSmrg 33af69d88dSmrg- Continue a previous primitive when there are no state changes 34af69d88dSmrg 35af69d88dSmrg- Fix fragment discard 36af69d88dSmrg 37af69d88dSmrgOther bugs can be found here: 387ec681f3Smrghttps://gitlab.freedesktop.org/mesa/mesa/-/issues?scope=all&utf8=%E2%9C%93&state=opened&label_name[]=i915g 39