mesa: change ctx->Color.ColorMask into a 32-bit bitmask

4 bits per draw buffer, 8 draw buffers in total --> 32 bits.

This is easier to work with.

Reviewed-by: Eric Anholt <[email protected]>

1 files changed, 7 insertions, 1 deletions

diff --git a/src/mesa/swrast/s_clear.c b/src/mesa/swrast/s_clear.c
index c26b4be0d9e..ddafb67c98f 100644
--- a/src/mesa/swrast/s_clear.c
+++ b/src/mesa/swrast/s_clear.c
@@ -187,7 +187,13 @@ clear_color_buffers(struct gl_context *ctx)
       if (rb == NULL)
 	 continue;
 
-      clear_rgba_buffer(ctx, rb, ctx->Color.ColorMask[buf]);
+      const GLubyte colormask[4] = {
+         GET_COLORMASK_BIT(ctx->Color.ColorMask, buf, 0) ? 0xff : 0,
+         GET_COLORMASK_BIT(ctx->Color.ColorMask, buf, 1) ? 0xff : 0,
+         GET_COLORMASK_BIT(ctx->Color.ColorMask, buf, 2) ? 0xff : 0,
+         GET_COLORMASK_BIT(ctx->Color.ColorMask, buf, 3) ? 0xff : 0,
+      };
+      clear_rgba_buffer(ctx, rb, colormask);
    }
 }