i915g: cube issues
Regressions compared to i915c:
+dEQP-GLES2.functional.texture.filtering.cube.linear_linear_clamp_l8_pot,Fail
+dEQP-GLES2.functional.texture.filtering.cube.linear_linear_mirror_l8_pot,Fail
+dEQP-GLES2.functional.texture.filtering.cube.linear_linear_repeat_l8_pot,Fail
+dEQP-GLES2.functional.texture.filtering.cube.linear_mipmap_linear_nearest_repeat_l8,Fail
+dEQP-GLES2.functional.texture.filtering.cube.linear_nearest_clamp_l8_pot,Fail
+dEQP-GLES2.functional.texture.filtering.cube.nearest_linear_clamp_l8_pot,Fail
+dEQP-GLES2.functional.texture.filtering.cube.nearest_nearest_clamp_l8_pot,Fail
+dEQP-GLES2.functional.texture.filtering.cube.nearest_nearest_mirror_l8_pot,Fail
+dEQP-GLES2.functional.texture.filtering.cube.nearest_nearest_repeat_l8_pot,Fail
+dEQP-GLES2.functional.texture.size.cube.128x128_l8_mipmap,Fail
+dEQP-GLES2.functional.texture.size.cube.15x15_l8,Fail
+dEQP-GLES2.functional.texture.size.cube.15x15_rgb888,Fail
+dEQP-GLES2.functional.texture.size.cube.15x15_rgba4444,Fail
+dEQP-GLES2.functional.texture.size.cube.15x15_rgba8888,Fail
+dEQP-GLES2.functional.texture.size.cube.16x16_l8_mipmap,Fail
+dEQP-GLES2.functional.texture.size.cube.64x64_l8_mipmap,Fail
So we've got a general L8 cube issue, and then also something with 15x15. Spec says:
• [DevGDG and DevAlv]: Must be a power of 2 for cube maps.
• [DevLPT, DevCST and DevBLB]: If not a power of 2, cube maps must have all faces enabled.
so what did i915c do here?