diff options
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_pt_varray.c')
-rw-r--r-- | src/gallium/auxiliary/draw/draw_pt_varray.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pt_varray.c b/src/gallium/auxiliary/draw/draw_pt_varray.c new file mode 100644 index 0000000000..022098a314 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_varray.c @@ -0,0 +1,251 @@ +/************************************************************************** + * + * Copyright 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. + * + **************************************************************************/ + +#include "pipe/p_util.h" +#include "draw/draw_context.h" +#include "draw/draw_private.h" +#include "draw/draw_pt.h" + +#define FETCH_MAX 256 +#define DRAW_MAX (16*FETCH_MAX) + +struct varray_frontend { + struct draw_pt_front_end base; + struct draw_context *draw; + + ushort draw_elts[DRAW_MAX]; + unsigned fetch_elts[FETCH_MAX]; + + unsigned draw_count; + unsigned fetch_count; + + struct draw_pt_middle_end *middle; + + unsigned input_prim; + unsigned output_prim; +}; + +static void varray_flush(struct varray_frontend *varray) +{ + if (varray->draw_count) { +#if 0 + debug_printf("FLUSH fc = %d, dc = %d\n", + varray->fetch_count, + varray->draw_count); +#endif + varray->middle->run(varray->middle, + varray->fetch_elts, + varray->fetch_count, + varray->draw_elts, + varray->draw_count); + } + + varray->fetch_count = 0; + varray->draw_count = 0; +} + +#if 0 +static void varray_check_flush(struct varray_frontend *varray) +{ + if (varray->draw_count + 6 >= DRAW_MAX/* || + varray->fetch_count + 4 >= FETCH_MAX*/) { + varray_flush(varray); + } +} +#endif + +static INLINE void add_draw_el(struct varray_frontend *varray, + int idx, ushort flags) +{ + varray->draw_elts[varray->draw_count++] = idx | flags; +} + + +static INLINE void varray_triangle( struct varray_frontend *varray, + unsigned i0, + unsigned i1, + unsigned i2 ) +{ + add_draw_el(varray, i0, 0); + add_draw_el(varray, i1, 0); + add_draw_el(varray, i2, 0); +} + +static INLINE void varray_triangle_flags( struct varray_frontend *varray, + ushort flags, + unsigned i0, + unsigned i1, + unsigned i2 ) +{ + add_draw_el(varray, i0, flags); + add_draw_el(varray, i1, 0); + add_draw_el(varray, i2, 0); +} + +static INLINE void varray_line( struct varray_frontend *varray, + unsigned i0, + unsigned i1 ) +{ + add_draw_el(varray, i0, 0); + add_draw_el(varray, i1, 0); +} + + +static INLINE void varray_line_flags( struct varray_frontend *varray, + ushort flags, + unsigned i0, + unsigned i1 ) +{ + add_draw_el(varray, i0, flags); + add_draw_el(varray, i1, 0); +} + + +static INLINE void varray_point( struct varray_frontend *varray, + unsigned i0 ) +{ + add_draw_el(varray, i0, 0); +} + +static INLINE void varray_quad( struct varray_frontend *varray, + unsigned i0, + unsigned i1, + unsigned i2, + unsigned i3 ) +{ + varray_triangle( varray, i0, i1, i3 ); + varray_triangle( varray, i1, i2, i3 ); +} + +static INLINE void varray_ef_quad( struct varray_frontend *varray, + unsigned i0, + unsigned i1, + unsigned i2, + unsigned i3 ) +{ + const unsigned omitEdge1 = DRAW_PIPE_EDGE_FLAG_0 | DRAW_PIPE_EDGE_FLAG_2; + const unsigned omitEdge2 = DRAW_PIPE_EDGE_FLAG_0 | DRAW_PIPE_EDGE_FLAG_1; + + varray_triangle_flags( varray, + DRAW_PIPE_RESET_STIPPLE | omitEdge1, + i0, i1, i3 ); + + varray_triangle_flags( varray, + omitEdge2, + i1, i2, i3 ); +} + +/* At least for now, we're back to using a template include file for + * this. The two paths aren't too different though - it may be + * possible to reunify them. + */ +#define TRIANGLE(vc,flags,i0,i1,i2) varray_triangle_flags(vc,flags,i0,i1,i2) +#define QUAD(vc,i0,i1,i2,i3) varray_ef_quad(vc,i0,i1,i2,i3) +#define LINE(vc,flags,i0,i1) varray_line_flags(vc,flags,i0,i1) +#define POINT(vc,i0) varray_point(vc,i0) +#define FUNC varray_run_extras +#include "draw_pt_varray_tmp.h" + +#define TRIANGLE(vc,flags,i0,i1,i2) varray_triangle(vc,i0,i1,i2) +#define QUAD(vc,i0,i1,i2,i3) varray_quad(vc,i0,i1,i2,i3) +#define LINE(vc,flags,i0,i1) varray_line(vc,i0,i1) +#define POINT(vc,i0) varray_point(vc,i0) +#define FUNC varray_run +#include "draw_pt_varray_tmp.h" + + + +static unsigned reduced_prim[PIPE_PRIM_POLYGON + 1] = { + PIPE_PRIM_POINTS, + PIPE_PRIM_LINES, + PIPE_PRIM_LINES, + PIPE_PRIM_LINES, + PIPE_PRIM_TRIANGLES, + PIPE_PRIM_TRIANGLES, + PIPE_PRIM_TRIANGLES, + PIPE_PRIM_TRIANGLES, + PIPE_PRIM_TRIANGLES, + PIPE_PRIM_TRIANGLES +}; + + + +static void varray_prepare(struct draw_pt_front_end *frontend, + unsigned prim, + struct draw_pt_middle_end *middle, + unsigned opt) +{ + struct varray_frontend *varray = (struct varray_frontend *)frontend; + const struct pipe_rasterizer_state *rasterizer = varray->draw->rasterizer; + + if (rasterizer->fill_cw != PIPE_POLYGON_MODE_FILL || + rasterizer->fill_ccw != PIPE_POLYGON_MODE_FILL || + rasterizer->line_stipple_enable) + { + assert(opt & PT_PIPELINE); + varray->base.run = varray_run_extras; + } else { + varray->base.run = varray_run; + } + + varray->input_prim = prim; + varray->output_prim = reduced_prim[prim]; + + varray->middle = middle; + middle->prepare(middle, varray->output_prim, opt); +} + + + + +static void varray_finish(struct draw_pt_front_end *frontend) +{ + struct varray_frontend *varray = (struct varray_frontend *)frontend; + varray->middle->finish(varray->middle); + varray->middle = NULL; +} + +static void varray_destroy(struct draw_pt_front_end *frontend) +{ + FREE(frontend); +} + + +struct draw_pt_front_end *draw_pt_varray(struct draw_context *draw) +{ + struct varray_frontend *varray = CALLOC_STRUCT(varray_frontend); + if (varray == NULL) + return NULL; + + varray->base.prepare = varray_prepare; + varray->base.run = NULL; + varray->base.finish = varray_finish; + varray->base.destroy = varray_destroy; + varray->draw = draw; + + return &varray->base; +} |