From: Charmaine Lee <charmainel@vmware.com>
Date: Fri, 17 Nov 2017 03:46:35 +0000 (-0800)
Subject: svga: add sample positions for 2 samples
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7187a2f7ffecacf63fe68dfe1b651f792c974241;p=mesa.git

svga: add sample positions for 2 samples

Fixes piglit tests spec@arb_sample_shading@builtin-gl-sample-position 2
                   spec@arb_texture_multisample@fb-completeness@2

Reviewed-by: Brian Paul <brianp@vmware.com>
---

diff --git a/src/gallium/drivers/svga/svga_surface.c b/src/gallium/drivers/svga/svga_surface.c
index 9b9bc9ed6a3..bc1212f8302 100644
--- a/src/gallium/drivers/svga/svga_surface.c
+++ b/src/gallium/drivers/svga/svga_surface.c
@@ -918,6 +918,10 @@ svga_get_sample_position(struct pipe_context *context,
    static const float pos1[1][2] = {
       { 0.5, 0.5 }
    };
+   static const float pos2[2][2] = {
+      { 0.75, 0.75 },
+      { 0.25, 0.25 }
+   };
    static const float pos4[4][2] = {
       { 0.375000, 0.125000 },
       { 0.875000, 0.375000 },
@@ -955,6 +959,9 @@ svga_get_sample_position(struct pipe_context *context,
    const float (*positions)[2];
 
    switch (sample_count) {
+   case 2:
+      positions = pos2;
+      break;
    case 4:
       positions = pos4;
       break;