1 files changed, 160 insertions, 0 deletions
diff --git a/src/mesa/pipe/softpipe/sp_context.h b/src/mesa/pipe/softpipe/sp_context.h
new file mode 100644
index 0000000000..3c379c9091
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+++ b/src/mesa/pipe/softpipe/sp_context.h
@@ -0,0 +1,160 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 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.
+ * 
+ **************************************************************************/
+
+/* Authors:  Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#ifndef SP_CONTEXT_H
+#define SP_CONTEXT_H
+
+#include "glheader.h"
+
+#include "pipe/p_state.h"
+#include "pipe/p_context.h"
+
+#include "sp_quad.h"
+
+
+struct softpipe_surface;
+struct draw_context;
+struct draw_stage;
+
+
+enum interp_mode {
+   INTERP_CONSTANT, 
+   INTERP_LINEAR, 
+   INTERP_PERSPECTIVE
+};
+
+
+#define SP_NEW_VIEWPORT      0x1
+#define SP_NEW_SETUP         0x2
+#define SP_NEW_FS            0x4
+#define SP_NEW_BLEND         0x8
+#define SP_NEW_CLIP         0x10
+#define SP_NEW_SCISSOR      0x20
+#define SP_NEW_STIPPLE      0x40
+#define SP_NEW_FRAMEBUFFER  0x80
+#define SP_NEW_ALPHA_TEST  0x100
+#define SP_NEW_DEPTH_TEST  0x200
+#define SP_NEW_SAMPLER     0x400
+#define SP_NEW_TEXTURE     0x800
+#define SP_NEW_STENCIL    0x1000
+
+
+struct softpipe_context {     
+   struct pipe_context pipe;  /**< base class */
+
+   /* The most recent drawing state as set by the driver:
+    */
+   struct pipe_alpha_test_state alpha_test;
+   struct pipe_blend_state blend;
+   struct pipe_blend_color blend_color;
+   struct pipe_clear_color_state clear_color;
+   struct pipe_clip_state clip;
+   struct pipe_depth_state depth_test;
+   struct pipe_framebuffer_state framebuffer;
+   struct pipe_fs_state fs;
+   struct pipe_poly_stipple poly_stipple;
+   struct pipe_scissor_state scissor;
+   struct pipe_sampler_state sampler[PIPE_MAX_SAMPLERS];
+   struct pipe_setup_state setup;
+   struct pipe_stencil_state stencil;
+   struct pipe_texture_object *texture[PIPE_MAX_SAMPLERS];
+   struct pipe_viewport_state viewport;
+   GLuint dirty;
+
+   /* Setup derived state.  TODO: this should be passed in the program
+    * tokens as parameters to DECL instructions.
+    * 
+    * For now we just set colors to CONST on flatshade, textures to
+    * perspective always and everything else to linear.
+    */
+   enum interp_mode interp[PIPE_ATTRIB_MAX];
+
+
+   /* FS + setup derived state:
+    */
+
+   /** Map fragment program attribute to quad/coef array slot */
+   GLuint fp_attr_to_slot[PIPE_ATTRIB_MAX];
+   /** Map vertex format attribute to a vertex attribute slot */
+   GLuint vf_attr_to_slot[PIPE_ATTRIB_MAX];
+   GLuint nr_attrs;
+   GLuint nr_frag_attrs;  /**< number of active fragment attribs */
+   GLbitfield attr_mask;  /**< bitfield of VF_ATTRIB_ indexes/bits */
+
+   GLboolean need_z;  /**< produce quad/fragment Z values? */
+   GLboolean need_w;  /**< produce quad/fragment W values? */
+
+#if 0
+   /* Stipple derived state:
+    */
+   GLubyte stipple_masks[16][16];
+#endif
+
+   /** Derived from scissor and surface bounds: */
+   struct pipe_scissor_state cliprect;
+
+   GLuint occlusion_counter;
+
+   GLuint line_stipple_counter;
+
+   /** Software quad rendering pipeline */
+   struct {
+      struct quad_stage *polygon_stipple;
+      struct quad_stage *shade;
+      struct quad_stage *alpha_test;
+      struct quad_stage *stencil_test;
+      struct quad_stage *depth_test;
+      struct quad_stage *occlusion;
+      struct quad_stage *coverage;
+      struct quad_stage *bufloop;
+      struct quad_stage *blend;
+      struct quad_stage *colormask;
+      struct quad_stage *output;
+
+      struct quad_stage *first; /**< points to one of the above stages */
+   } quad;
+
+   /** The primitive drawing context */
+   struct draw_context *draw;
+
+   struct pipe_surface *cbuf;      /**< current color buffer (one of cbufs) */
+};
+
+
+
+
+static INLINE struct softpipe_context *
+softpipe_context( struct pipe_context *pipe )
+{
+   return (struct softpipe_context *)pipe;
+}
+
+
+#endif /* SP_CONTEXT_H */