diff options
| author | Steinar H. Gunderson <sgunderson@bigfoot.com> | 2009-05-12 11:32:03 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2009-05-15 12:50:11 -0700 |
| commit | b197a8ade3e1e6c67743111f12f27e0a4a985cd9 (patch) | |
| tree | 1bb7649e81ec43bea8df933b171efb69c38f428d | |
| parent | 4c6f82989983eecc0b3b724716cb3bcb675664c5 (diff) | |
i915: Fix 945 cube map layout for the small mipmaps along the bottom.
Bug #21691.
| -rw-r--r-- | src/mesa/drivers/dri/i915/i915_tex_layout.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i915/i915_tex_layout.c b/src/mesa/drivers/dri/i915/i915_tex_layout.c index 7cc1c096e4..40bcf7a9af 100644 --- a/src/mesa/drivers/dri/i915/i915_tex_layout.c +++ b/src/mesa/drivers/dri/i915/i915_tex_layout.c @@ -55,6 +55,17 @@ static GLint step_offsets[6][2] = { [FACE_NEG_Z] = {-1, 1}, }; + +static GLint bottom_offsets[6] = { + [FACE_POS_X] = 16 + 0 * 8, + [FACE_POS_Y] = 16 + 1 * 8, + [FACE_POS_Z] = 16 + 2 * 8, + [FACE_NEG_X] = 16 + 3 * 8, + [FACE_NEG_Y] = 16 + 4 * 8, + [FACE_NEG_Z] = 16 + 5 * 8, +}; + + /** * Cube texture map layout for i830M-GM915. * @@ -297,7 +308,7 @@ i915_miptree_layout(struct intel_context *intel, struct intel_mipmap_tree * mt) * +---+ +---+ +---+ +---+ +---+ +---+ * * The bottom row continues with the remaining 2x2 then the 1x1 mip contents - * in order, with each of them aligned to a 4x4 block boundary. Thus, for + * in order, with each of them aligned to a 8x8 block boundary. Thus, for * 32x32 cube maps and smaller, the bottom row layout is going to dictate the * pitch of the tree. For a tree with 4x4 images, the pitch is at least * 14 * 8 = 112 texels, for 2x2 it is at least 12 * 8 texels, and for 1x1 @@ -375,10 +386,11 @@ i945_miptree_layout_cube(struct intel_context *intel, x = (face - 4) * 8; break; } + break; case 2: y = mt->total_height - 4; - x = 16 + face * 8; + x = bottom_offsets[face]; break; case 1: |