cso: add a higher-level interface which does all pipe interactions to set a given state

1 files changed, 85 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/cso_cache/cso_context.h b/src/gallium/auxiliary/cso_cache/cso_context.h
new file mode 100644
index 0000000000..1f2a630804
--- /dev/null
+++ b/src/gallium/auxiliary/cso_cache/cso_context.h
@@ -0,0 +1,85 @@
+/**************************************************************************
+ *
+ * Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+
+#ifndef CSO_CONTEXT_H
+#define CSO_CONTEXT_H
+
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+struct cso_context;
+
+struct cso_context *cso_create_context( struct pipe_context *pipe );
+
+void cso_set_blend( struct cso_context *cso,
+                    const struct pipe_blend_state *blend );
+
+void cso_set_depth_stencil_alpha( struct cso_context *cso,
+                                  const struct pipe_depth_stencil_alpha_state *dsa );
+
+void cso_set_rasterizer( struct cso_context *cso,
+                         const struct pipe_rasterizer_state *rasterizer );
+
+void cso_set_samplers( struct cso_context *cso,
+                       unsigned count,
+                       const struct pipe_sampler_state **states );
+
+/* Alternate interface to support state trackers that like to modify
+ * samplers one at a time:
+ */
+void cso_single_sampler( struct cso_context *cso,
+                         unsigned nr,
+                         const struct pipe_sampler_state *states );
+
+void cso_single_sampler_done( struct cso_context *cso );
+
+
+/* These aren't really sensible -- most of the time the api provides
+ * object semantics for shaders anyway, and the cases where it doesn't
+ * (eg mesa's internall-generated texenv programs), it will be up to
+ * the state tracker to implement their own specialized caching.
+ */
+void cso_set_fragment_shader( struct cso_context *cso,
+                              const struct pipe_shader_state *shader );
+
+void cso_set_vertex_shader( struct cso_context *cso,
+                            const struct pipe_shader_state *shader );
+
+void cso_destroy_context( struct cso_context *cso );
+
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif