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Diffstat (limited to 'src/mesa/pipe/draw/draw_private.h')
-rw-r--r--src/mesa/pipe/draw/draw_private.h138
1 files changed, 115 insertions, 23 deletions
diff --git a/src/mesa/pipe/draw/draw_private.h b/src/mesa/pipe/draw/draw_private.h
index b6cbaae085..ac25628a08 100644
--- a/src/mesa/pipe/draw/draw_private.h
+++ b/src/mesa/pipe/draw/draw_private.h
@@ -25,32 +25,63 @@
*
**************************************************************************/
-/* Authors: Keith Whitwell <keith@tungstengraphics.com>
+/**
+ * Private data structures, etc for the draw module.
*/
-#ifndef G_PRIM_H
-#define G_PRIM_H
-#include "glheader.h"
-#include "sp_headers.h"
+/**
+ * Authors:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ * Brian Paul
+ */
+
-struct softpipe_context;
+#ifndef DRAW_PRIVATE_H
+#define DRAW_PRIVATE_H
-struct prim_stage *prim_setup( struct softpipe_context *context );
-struct prim_stage *prim_unfilled( struct softpipe_context *context );
-struct prim_stage *prim_twoside( struct softpipe_context *context );
-struct prim_stage *prim_offset( struct softpipe_context *context );
-struct prim_stage *prim_clip( struct softpipe_context *context );
-struct prim_stage *prim_flatshade( struct softpipe_context *context );
-struct prim_stage *prim_cull( struct softpipe_context *context );
+#include "main/glheader.h"
+#include "pipe/p_state.h"
+#include "pipe/p_defines.h"
+#include "vf/vf.h"
-/* Internal structs and helpers for the primitive clip/setup pipeline:
+
+/**
+ * Basic vertex info.
+ * Carry some useful information around with the vertices in the prim pipe.
*/
-struct prim_stage {
- struct softpipe_context *softpipe;
+struct vertex_header {
+ GLuint clipmask:12;
+ GLuint edgeflag:1;
+ GLuint pad:19;
- struct prim_stage *next;
+ GLfloat clip[4];
+
+ GLfloat data[][4]; /* Note variable size */
+};
+
+
+/**
+ * Basic info for a point/line/triangle primitive.
+ */
+struct prim_header {
+ GLfloat det; /**< front/back face determinant */
+ struct vertex_header *v[3]; /**< 1 to 3 vertex pointers */
+};
+
+
+
+struct draw_context;
+
+/**
+ * Base class for all primitive drawing stages.
+ */
+struct prim_stage
+{
+ struct draw_context *draw; /**< parent context */
+
+ struct prim_stage *next; /**< next stage in pipeline */
struct vertex_header **tmp;
GLuint nr_tmps;
@@ -70,8 +101,72 @@ struct prim_stage {
};
+/**
+ * Private context for the drawing module.
+ */
+struct draw_context
+{
+ struct {
+ struct prim_stage *first; /**< one of the following */
+
+ /* stages (in logical order) */
+ struct prim_stage *flatshade;
+ struct prim_stage *clip;
+ struct prim_stage *cull;
+ struct prim_stage *twoside;
+ struct prim_stage *offset;
+ struct prim_stage *unfilled;
+ struct prim_stage *setup; /* aka render/rasterize */
+ } pipeline;
+
+ /* pipe state that we need: */
+ struct pipe_setup_state setup;
+ struct pipe_viewport_state viewport;
+
+ /* Clip derived state:
+ */
+ GLfloat plane[12][4];
+ GLuint nr_planes;
+
+ GLuint vf_attr_to_slot[PIPE_ATTRIB_MAX];
+
+ struct vf_attr_map attrs[VF_ATTRIB_MAX];
+ GLuint nr_attrs;
+ GLuint vertex_size; /**< in bytes */
+ struct vertex_fetch *vf;
+
+ GLubyte *verts;
+ GLuint nr_vertices;
+ GLboolean in_vb;
+
+ GLenum prim; /**< GL_POINTS, GL_LINE_STRIP, GL_QUADS, etc */
+
+ /* Helper for tnl:
+ */
+ GLvector4f header;
+};
+
+
-/* Get a writeable copy of a vertex:
+extern struct prim_stage *prim_unfilled( struct draw_context *context );
+extern struct prim_stage *prim_twoside( struct draw_context *context );
+extern struct prim_stage *prim_offset( struct draw_context *context );
+extern struct prim_stage *prim_clip( struct draw_context *context );
+extern struct prim_stage *prim_flatshade( struct draw_context *context );
+extern struct prim_stage *prim_cull( struct draw_context *context );
+
+
+extern void prim_free_tmps( struct prim_stage *stage );
+extern void prim_alloc_tmps( struct prim_stage *stage, GLuint nr );
+
+
+
+/**
+ * Get a writeable copy of a vertex.
+ * \param stage drawing stage info
+ * \param vert the vertex to copy (source)
+ * \param idx index into stage's tmp[] array to put the copy (dest)
+ * \return pointer to the copied vertex
*/
static INLINE struct vertex_header *
dup_vert( struct prim_stage *stage,
@@ -79,12 +174,9 @@ dup_vert( struct prim_stage *stage,
GLuint idx )
{
struct vertex_header *tmp = stage->tmp[idx];
- memcpy(tmp, vert, stage->softpipe->prim.vertex_size );
+ memcpy(tmp, vert, stage->draw->vertex_size );
return tmp;
}
-void prim_free_tmps( struct prim_stage *stage );
-void prim_alloc_tmps( struct prim_stage *stage, GLuint nr );
-
-#endif
+#endif /* DRAW_PRIVATE_H */