diff options
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_pt.h')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_pt.h | 102 |
1 files changed, 89 insertions, 13 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pt.h b/src/gallium/auxiliary/draw/draw_pt.h index 48413b648a..fd0d158fcf 100644 --- a/src/gallium/auxiliary/draw/draw_pt.h +++ b/src/gallium/auxiliary/draw/draw_pt.h @@ -50,6 +50,12 @@ struct draw_context; #define DRAW_PT_FLAG_MASK (3<<30) +#define PT_SHADE 0x1 +#define PT_CLIPTEST 0x2 +#define PT_PIPELINE 0x4 +#define PT_MAX_MIDDLE 0x8 + + /* The "front end" - prepare sets of fetch, draw elements for the * middle end. * @@ -64,7 +70,8 @@ struct draw_context; struct draw_pt_front_end { void (*prepare)( struct draw_pt_front_end *, unsigned prim, - struct draw_pt_middle_end * ); + struct draw_pt_middle_end *, + unsigned opt ); void (*run)( struct draw_pt_front_end *, pt_elt_func elt_func, @@ -82,15 +89,11 @@ struct draw_pt_front_end { * Currently two versions of this: * - fetch, vertex shade, cliptest, prim-pipeline * - fetch, emit (ie passthrough) - * Later: - * - fetch, vertex shade, cliptest, maybe-pipeline, maybe-emit - * - fetch, vertex shade, emit - * - * Currenly only using the passthrough version. */ struct draw_pt_middle_end { void (*prepare)( struct draw_pt_middle_end *, - unsigned prim ); + unsigned prim, + unsigned opt ); void (*run)( struct draw_pt_middle_end *, const unsigned *fetch_elts, @@ -104,12 +107,9 @@ struct draw_pt_middle_end { /* The "back end" - supplied by the driver, defined in draw_vbuf.h. - * - * Not sure whether to wrap the prim pipeline up as an alternate - * backend. Would be a win for everything except pure passthrough - * mode... */ struct vbuf_render; +struct vertex_header; /* Helper functions. @@ -118,12 +118,88 @@ pt_elt_func draw_pt_elt_func( struct draw_context *draw ); const void *draw_pt_elt_ptr( struct draw_context *draw, unsigned start ); -/* Implementations: +/* Frontends: + * + * Currently only the general-purpose vcache implementation, could add + * a special case for tiny vertex buffers. */ struct draw_pt_front_end *draw_pt_vcache( struct draw_context *draw ); + +/* Middle-ends: + * + * Currently one general-purpose case which can do all possibilities, + * at the slight expense of creating a vertex_header in some cases + * unecessarily. + * + * The special case fetch_emit code avoids pipeline vertices + * altogether and builds hardware vertices directly from API + * vertex_elements. + */ struct draw_pt_middle_end *draw_pt_fetch_emit( struct draw_context *draw ); -struct draw_pt_middle_end *draw_pt_fetch_pipeline( struct draw_context *draw ); struct draw_pt_middle_end *draw_pt_fetch_pipeline_or_emit(struct draw_context *draw); +/* More helpers: + */ +boolean draw_pt_get_edgeflag( struct draw_context *draw, + unsigned idx ); + + +/******************************************************************************* + * HW vertex emit: + */ +struct pt_emit; + +void draw_pt_emit_prepare( struct pt_emit *emit, + unsigned prim ); + +void draw_pt_emit( struct pt_emit *emit, + const float (*vertex_data)[4], + unsigned vertex_count, + unsigned stride, + const ushort *elts, + unsigned count ); + +void draw_pt_emit_destroy( struct pt_emit *emit ); + +struct pt_emit *draw_pt_emit_create( struct draw_context *draw ); + + +/******************************************************************************* + * API vertex fetch: + */ + +struct pt_fetch; +void draw_pt_fetch_prepare( struct pt_fetch *fetch, + unsigned vertex_size ); + +void draw_pt_fetch_run( struct pt_fetch *fetch, + const unsigned *elts, + unsigned count, + char *verts ); + +void draw_pt_fetch_destroy( struct pt_fetch *fetch ); + +struct pt_fetch *draw_pt_fetch_create( struct draw_context *draw ); + +/******************************************************************************* + * Post-VS: cliptest, rhw, viewport + */ +struct pt_post_vs; + +boolean draw_pt_post_vs_run( struct pt_post_vs *pvs, + struct vertex_header *pipeline_verts, + unsigned stride, + unsigned count ); + +void draw_pt_post_vs_prepare( struct pt_post_vs *pvs, + boolean bypass_clipping, + boolean identity_viewport, + boolean opengl ); + +struct pt_post_vs *draw_pt_post_vs_create( struct draw_context *draw ); + +void draw_pt_post_vs_destroy( struct pt_post_vs *pvs ); + + #endif |