diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_blorp_blit.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp index 6e156d0f00a..034c7019573 100644 --- a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp +++ b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp @@ -1800,6 +1800,11 @@ brw_blorp_blit_params::brw_blorp_blit_params(struct brw_context *brw, * account for the differences in aspect ratio between the Y and W * sub-tiles. We need to modify the layer width and height similarly. * + * A correction needs to be applied when MSAA is in use: since + * INTEL_MSAA_LAYOUT_IMS uses an interleaving pattern whose height is 4, + * we need to align the Y coordinates to multiples of 8, so that when + * they are divided by two they are still multiples of 4. + * * Note: Since the x/y offset of the surface will be applied using the * SURFACE_STATE command packet, it will be invisible to the swizzling * code in the shader; therefore it needs to be in a multiple of the @@ -1821,7 +1826,7 @@ brw_blorp_blit_params::brw_blorp_blit_params(struct brw_context *brw, * TODO: what if this makes the coordinates (or the texture size) too * large? */ - const unsigned x_align = 8, y_align = 4; + const unsigned x_align = 8, y_align = dst.num_samples != 0 ? 8 : 4; x0 = ROUND_DOWN_TO(x0, x_align) * 2; y0 = ROUND_DOWN_TO(y0, y_align) / 2; x1 = ALIGN(x1, x_align) * 2; @@ -1843,7 +1848,7 @@ brw_blorp_blit_params::brw_blorp_blit_params(struct brw_context *brw, * * TODO: what if this makes the texture size too large? */ - const unsigned x_align = 8, y_align = 4; + const unsigned x_align = 8, y_align = src.num_samples != 0 ? 8 : 4; src.width = ALIGN(src.width, x_align) * 2; src.height = ALIGN(src.height, y_align) / 2; src.x_offset *= 2; |