mesa: implement sample mask

V2: - fix multiline comment style
    - stop using ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH since that
      doesn't exist anymore.

V3: - check for the extension being enabled
    - tidier flagging of _NEW_MULTISAMPLE
    - fix weird indentation in get.c

V4: - move flush later in SampleMaski()

Signed-off-by: Chris Forbes <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>

1 files changed, 18 insertions, 0 deletions

diff --git a/src/mesa/main/enable.c b/src/mesa/main/enable.c
index 7e85fdfb3f4..b688f050b1f 100644
--- a/src/mesa/main/enable.c
+++ b/src/mesa/main/enable.c
@@ -1013,6 +1013,17 @@ _mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state)
          }
          break;
 
+      /* ARB_texture_multisample */
+      case GL_SAMPLE_MASK:
+         if (!_mesa_is_desktop_gl(ctx))
+            goto invalid_enum_error;
+         CHECK_EXTENSION(ARB_texture_multisample, cap);
+         if (ctx->Multisample.SampleMask == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
+         ctx->Multisample.SampleMask = state;
+         break;
+
       default:
          goto invalid_enum_error;
    }
@@ -1583,6 +1594,13 @@ _mesa_IsEnabled( GLenum cap )
 	 CHECK_EXTENSION(OES_EGL_image_external);
          return is_texture_enabled(ctx, TEXTURE_EXTERNAL_BIT);
 
+      /* ARB_texture_multisample */
+      case GL_SAMPLE_MASK:
+         if (!_mesa_is_desktop_gl(ctx))
+            goto invalid_enum_error;
+         CHECK_EXTENSION(ARB_texture_multisample);
+         return ctx->Multisample.SampleMask;
+
       default:
          goto invalid_enum_error;
    }