mesa: introduce a clear color union to be used for int/unsigned buffers

This introduces a new gl_color_union union and moves the current
ClearColorUnclamped to use it, it removes current ClearColor completely and
renames CCU to CC, then all drivers are modified to expected unclamped floats instead.

also fixes st to use translated color in one place it wasn't.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/src/mesa/drivers/windows/gdi/wmesa.c b/src/mesa/drivers/windows/gdi/wmesa.c
index 35a150d..14d15ed 100644
--- a/src/mesa/drivers/windows/gdi/wmesa.c
+++ b/src/mesa/drivers/windows/gdi/wmesa.c
@@ -249,14 +249,15 @@ static void wmesa_flush(struct gl_context *ctx)
 /*
  * Set the color used to clear the color buffer.
  */
-static void clear_color(struct gl_context *ctx, const GLfloat color[4])
+static void clear_color(struct gl_context *ctx,
+                        const union gl_color_union color)
 {
     WMesaContext pwc = wmesa_context(ctx);
     GLubyte col[3];
 
-    CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
-    CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
-    CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
+    UNCLAMPED_FLOAT_TO_UBYTE(col[0], color.f[0]);
+    UNCLAMPED_FLOAT_TO_UBYTE(col[1], color.f[1]);
+    UNCLAMPED_FLOAT_TO_UBYTE(col[2], color.f[2]);
     pwc->clearColorRef = RGB(col[0], col[1], col[2]);
     DeleteObject(pwc->clearPen);
     DeleteObject(pwc->clearBrush);