mesa: add support for GL_EXT_polygon_offset_clamp

Nothing enables the extension yet, but the values are now available.
The spec calls for it to only be exposed for GL 3.3+, which is core-only
in mesa. Instead we allow any driver to enable it, including in a compat
context for any GL version.

Signed-off-by: Ilia Mirkin <[email protected]>
Reviewed-by: Glenn Kennard <[email protected]>

3 files changed, 3 insertions, 3 deletions

diff --git a/src/mesa/drivers/dri/nouveau/nouveau_state.c b/src/mesa/drivers/dri/nouveau/nouveau_state.c
index db4915fc753..3aad10ed62e 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_state.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_state.c
@@ -319,7 +319,7 @@ nouveau_polygon_mode(struct gl_context *ctx, GLenum face, GLenum mode)
 }
 
 static void
-nouveau_polygon_offset(struct gl_context *ctx, GLfloat factor, GLfloat units)
+nouveau_polygon_offset(struct gl_context *ctx, GLfloat factor, GLfloat units, GLfloat clamp)
 {
 	context_dirty(ctx, POLYGON_OFFSET);
 }
diff --git a/src/mesa/drivers/dri/r200/r200_state.c b/src/mesa/drivers/dri/r200/r200_state.c
index 2ad8439cc29..930ead86ad1 100644
--- a/src/mesa/drivers/dri/r200/r200_state.c
+++ b/src/mesa/drivers/dri/r200/r200_state.c
@@ -712,7 +712,7 @@ static void r200ColorMask( struct gl_context *ctx,
  */
 
 static void r200PolygonOffset( struct gl_context *ctx,
-			       GLfloat factor, GLfloat units )
+			       GLfloat factor, GLfloat units, GLfloat clamp )
 {
    r200ContextPtr rmesa = R200_CONTEXT(ctx);
    const GLfloat depthScale = 1.0F / ctx->DrawBuffer->_DepthMaxF;
diff --git a/src/mesa/drivers/dri/radeon/radeon_state.c b/src/mesa/drivers/dri/radeon/radeon_state.c
index f2e8fa7a53f..002fc86f9a4 100644
--- a/src/mesa/drivers/dri/radeon/radeon_state.c
+++ b/src/mesa/drivers/dri/radeon/radeon_state.c
@@ -520,7 +520,7 @@ static void radeonColorMask( struct gl_context *ctx,
  */
 
 static void radeonPolygonOffset( struct gl_context *ctx,
-				 GLfloat factor, GLfloat units )
+				 GLfloat factor, GLfloat units, GLfloat clamp )
 {
    r100ContextPtr rmesa = R100_CONTEXT(ctx);
    const GLfloat depthScale = 1.0F / ctx->DrawBuffer->_DepthMaxF;