mesa: implement per-buffer color masking

This is part of the GL_EXT_draw_buffers2 extension and part of GL 3.0.

The ctx->Color.ColorMask field is now a 2-D array.  Until drivers are
modified to support per-buffer color masking, they can just look at
the 0th color mask.

The new _mesa_ColorMaskIndexed() function will be called by
glColorMaskIndexedEXT() or glColorMaski().

1 files changed, 7 insertions, 7 deletions

diff --git a/src/mesa/drivers/dri/savage/savageioctl.c b/src/mesa/drivers/dri/savage/savageioctl.c
index 77ab8d16e0..706fc97935 100644
--- a/src/mesa/drivers/dri/savage/savageioctl.c
+++ b/src/mesa/drivers/dri/savage/savageioctl.c
@@ -360,15 +360,15 @@ static void savageDDClear( GLcontext *ctx, GLbitfield mask )
    depthMask = 0;
    switch (imesa->savageScreen->cpp) {
    case 2:
-       colorMask = PACK_COLOR_565(ctx->Color.ColorMask[0],
-				  ctx->Color.ColorMask[1],
-				  ctx->Color.ColorMask[2]);
+       colorMask = PACK_COLOR_565(ctx->Color.ColorMask[0][0],
+				  ctx->Color.ColorMask[0][1],
+				  ctx->Color.ColorMask[0][2]);
        break;
    case 4:
-       colorMask = PACK_COLOR_8888(ctx->Color.ColorMask[3],
-				   ctx->Color.ColorMask[2],
-				   ctx->Color.ColorMask[1],
-				   ctx->Color.ColorMask[0]);
+       colorMask = PACK_COLOR_8888(ctx->Color.ColorMask[0][3],
+				   ctx->Color.ColorMask[0][2],
+				   ctx->Color.ColorMask[0][1],
+				   ctx->Color.ColorMask[0][0]);
        break;
    }