mesa: Eliminate parameters to dd_function_table::Viewport

No driver uses them.  They will just be annoying in future patches.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

src/mesa/drivers/dri/i915/intel_context.c

@@ -271,17 +271,11 @@ intel_prepare_render(struct intel_context *intel)
 }
 
 static void
-intel_noninvalidate_viewport(struct gl_context *ctx, GLint x, GLint y,
-                             GLsizei w, GLsizei h)
+intel_noninvalidate_viewport(struct gl_context *ctx)
 {
     struct intel_context *intel = intel_context(ctx);
     __DRIcontext *driContext = intel->driContext;
 
-    (void) x;
-    (void) y;
-    (void) w;
-    (void) h;
-
     intelCalcViewport(ctx);
 
     if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) {
@@ -291,13 +285,8 @@ intel_noninvalidate_viewport(struct gl_context *ctx, GLint x, GLint y,
 }
 
 static void
-intel_viewport(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
+intel_viewport(struct gl_context *ctx)
 {
-    (void) x;
-    (void) y;
-    (void) w;
-    (void) h;
-
     intelCalcViewport(ctx);
 }
 

src/mesa/drivers/dri/i965/brw_context.c

@@ -134,16 +134,11 @@ intelGetString(struct gl_context * ctx, GLenum name)
 }
 
 static void
-intel_viewport(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
+intel_viewport(struct gl_context *ctx)
 {
    struct brw_context *brw = brw_context(ctx);
    __DRIcontext *driContext = brw->driContext;
 
-   (void) x;
-   (void) y;
-   (void) w;
-   (void) h;
-
    if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) {
       dri2InvalidateDrawable(driContext->driDrawablePriv);
       dri2InvalidateDrawable(driContext->driReadablePriv);

src/mesa/drivers/dri/r200/r200_state.c

@@ -1600,14 +1600,8 @@ void r200_vtbl_update_scissor( struct gl_context *ctx )
 }
 
 
-static void r200Viewport( struct gl_context *ctx, GLint x, GLint y,
-			    GLsizei width, GLsizei height )
+static void r200Viewport(struct gl_context *ctx)
 {
-   (void) x;
-   (void) y;
-   (void) width;
-   (void) height;
-
    /* Don't pipeline viewport changes, conflict with window offset
     * setting below.  Could apply deltas to rescue pipelined viewport
     * values, or keep the originals hanging around.

src/mesa/drivers/dri/radeon/radeon_state.c

@@ -1383,14 +1383,8 @@ void radeonUpdateWindow( struct gl_context *ctx )
 }
 
 
-static void radeonViewport( struct gl_context *ctx, GLint x, GLint y,
-			    GLsizei width, GLsizei height )
+static void radeonViewport(struct gl_context *ctx)
 {
-   (void) x;
-   (void) y;
-   (void) width;
-   (void) height;
-
    /* Don't pipeline viewport changes, conflict with window offset
     * setting below.  Could apply deltas to rescue pipelined viewport
     * values, or keep the originals hanging around.

src/mesa/drivers/dri/swrast/swrast.c

@@ -618,15 +618,11 @@ update_state( struct gl_context *ctx, GLuint new_state )
 }
 
 static void
-viewport(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
+viewport(struct gl_context *ctx)
 {
     struct gl_framebuffer *draw = ctx->WinSysDrawBuffer;
     struct gl_framebuffer *read = ctx->WinSysReadBuffer;
 
-    (void) x;
-    (void) y;
-    (void) w;
-    (void) h;
     swrast_check_and_update_window_size(ctx, draw);
     swrast_check_and_update_window_size(ctx, read);
 }

src/mesa/drivers/windows/gdi/wmesa.c

@@ -484,9 +484,7 @@ wmesa_resize_buffers(struct gl_context *ctx, struct gl_framebuffer *buffer,
  * we get the viewport set correctly, even if the app does not call
  * glViewport and relies on the defaults.
  */
-static void wmesa_viewport(struct gl_context *ctx, 
-			   GLint x, GLint y, 
-			   GLsizei width, GLsizei height)
+static void wmesa_viewport(struct gl_context *ctx)
 {
     GLuint new_width, new_height;
 

src/mesa/drivers/x11/xm_dd.c

@@ -750,17 +750,13 @@ xmesa_update_state( struct gl_context *ctx, GLbitfield new_state )
  * That problem led to the GLX_MESA_resize_buffers extension.
  */
 static void
-xmesa_viewport(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
+xmesa_viewport(struct gl_context *ctx)
 {
    XMesaContext xmctx = XMESA_CONTEXT(ctx);
    XMesaBuffer xmdrawbuf = XMESA_BUFFER(ctx->WinSysDrawBuffer);
    XMesaBuffer xmreadbuf = XMESA_BUFFER(ctx->WinSysReadBuffer);
    xmesa_check_and_update_buffer_size(xmctx, xmdrawbuf);
    xmesa_check_and_update_buffer_size(xmctx, xmreadbuf);
-   (void) x;
-   (void) y;
-   (void) w;
-   (void) h;
 }
 
 

src/mesa/main/dd.h

@@ -547,7 +547,7 @@ struct dd_function_table {
                         struct gl_texture_object *texObj,
                         GLenum pname, const GLfloat *params);
    /** Set the viewport */
-   void (*Viewport)(struct gl_context *ctx, GLint x, GLint y, GLsizei w, GLsizei h);
+   void (*Viewport)(struct gl_context *ctx);
    /*@}*/
 
 

src/mesa/main/viewport.c

@@ -99,7 +99,7 @@ _mesa_set_viewport(struct gl_context *ctx, GLint x, GLint y,
       /* Many drivers will use this call to check for window size changes
        * and reallocate the z/stencil/accum/etc buffers if needed.
        */
-      ctx->Driver.Viewport(ctx, x, y, width, height);
+      ctx->Driver.Viewport(ctx);
    }
 }
 

src/mesa/state_tracker/st_cb_viewport.c

@@ -48,8 +48,7 @@ st_ws_framebuffer(struct gl_framebuffer *fb)
    return NULL;
 }
 
-static void st_viewport(struct gl_context * ctx, GLint x, GLint y,
-                        GLsizei width, GLsizei height)
+static void st_viewport(struct gl_context *ctx)
 {
    struct st_context *st = ctx->st;
    struct st_framebuffer *stdraw;