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, 2 deletions

diff --git a/src/mesa/main/multisample.c b/src/mesa/main/multisample.c
index 2d3a35ef389..2484946158f 100644
--- a/src/mesa/main/multisample.c
+++ b/src/mesa/main/multisample.c
@@ -60,6 +60,10 @@ _mesa_init_multisample(struct gl_context *ctx)
    ctx->Multisample.SampleCoverage = GL_FALSE;
    ctx->Multisample.SampleCoverageValue = 1.0;
    ctx->Multisample.SampleCoverageInvert = GL_FALSE;
+
+   /* ARB_texture_multisample / GL3.2 additions */
+   ctx->Multisample.SampleMask = GL_FALSE;
+   ctx->Multisample.SampleMaskValue = ~(GLbitfield)0;
 }
 
 
@@ -93,6 +97,18 @@ _mesa_GetMultisamplefv(GLenum pname, GLuint index, GLfloat * val)
 void GLAPIENTRY
 _mesa_SampleMaski(GLuint index, GLbitfield mask)
 {
-   assert(!"Not implemented");
-   // TODO: make this work
+   GET_CURRENT_CONTEXT(ctx);
+
+   if (!ctx->Extensions.ARB_texture_multisample) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glSampleMaski");
+      return;
+   }
+
+   if (index != 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glSampleMaski(index)");
+      return;
+   }
+
+   FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
+   ctx->Multisample.SampleMaskValue = mask;
 }