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author | marha <marha@users.sourceforge.net> | 2012-06-08 09:33:13 +0200 |
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committer | marha <marha@users.sourceforge.net> | 2012-06-08 09:33:13 +0200 |
commit | 990bc3f015a4f8fce2eb918375defcd44980a845 (patch) | |
tree | 8e8301f19482b52cc00bd95b4593522cc93267af /mesalib/src/gallium/auxiliary/util/u_split_prim.h | |
parent | 1af6fc1b5d93e54d6674de8b5870448b29f139a7 (diff) | |
download | vcxsrv-990bc3f015a4f8fce2eb918375defcd44980a845.tar.gz vcxsrv-990bc3f015a4f8fce2eb918375defcd44980a845.tar.bz2 vcxsrv-990bc3f015a4f8fce2eb918375defcd44980a845.zip |
Used synchronise script to update files
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_split_prim.h')
-rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_split_prim.h | 228 |
1 files changed, 114 insertions, 114 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_split_prim.h b/mesalib/src/gallium/auxiliary/util/u_split_prim.h index 9c83d6461..7f80fc127 100644 --- a/mesalib/src/gallium/auxiliary/util/u_split_prim.h +++ b/mesalib/src/gallium/auxiliary/util/u_split_prim.h @@ -1,114 +1,114 @@ -/* Originally written by Ben Skeggs for the nv50 driver*/
-
-#ifndef U_SPLIT_PRIM_H
-#define U_SPLIT_PRIM_H
-
-#include "pipe/p_defines.h"
-#include "pipe/p_compiler.h"
-
-#include "util/u_debug.h"
-
-struct util_split_prim {
- void *priv;
- void (*emit)(void *priv, unsigned start, unsigned count);
- void (*edge)(void *priv, boolean enabled);
-
- unsigned mode;
- unsigned start;
- unsigned p_start;
- unsigned p_end;
-
- uint repeat_first:1;
- uint close_first:1;
- uint edgeflag_off:1;
-};
-
-static INLINE void
-util_split_prim_init(struct util_split_prim *s,
- unsigned mode, unsigned start, unsigned count)
-{
- if (mode == PIPE_PRIM_LINE_LOOP) {
- s->mode = PIPE_PRIM_LINE_STRIP;
- s->close_first = 1;
- } else {
- s->mode = mode;
- s->close_first = 0;
- }
- s->start = start;
- s->p_start = start;
- s->p_end = start + count;
- s->edgeflag_off = 0;
- s->repeat_first = 0;
-}
-
-static INLINE boolean
-util_split_prim_next(struct util_split_prim *s, unsigned max_verts)
-{
- int repeat = 0;
-
- if (s->repeat_first) {
- s->emit(s->priv, s->start, 1);
- max_verts--;
- if (s->edgeflag_off) {
- s->edge(s->priv, TRUE);
- s->edgeflag_off = FALSE;
- }
- }
-
- if ((s->p_end - s->p_start) + s->close_first <= max_verts) {
- s->emit(s->priv, s->p_start, s->p_end - s->p_start);
- if (s->close_first)
- s->emit(s->priv, s->start, 1);
- return TRUE;
- }
-
- switch (s->mode) {
- case PIPE_PRIM_LINES:
- max_verts &= ~1;
- break;
- case PIPE_PRIM_LINE_STRIP:
- repeat = 1;
- break;
- case PIPE_PRIM_POLYGON:
- max_verts--;
- s->emit(s->priv, s->p_start, max_verts);
- s->edge(s->priv, FALSE);
- s->emit(s->priv, s->p_start + max_verts, 1);
- s->p_start += max_verts;
- s->repeat_first = TRUE;
- s->edgeflag_off = TRUE;
- return FALSE;
- case PIPE_PRIM_TRIANGLES:
- max_verts = max_verts - (max_verts % 3);
- break;
- case PIPE_PRIM_TRIANGLE_STRIP:
- /* to ensure winding stays correct, always split
- * on an even number of generated triangles
- */
- max_verts = max_verts & ~1;
- repeat = 2;
- break;
- case PIPE_PRIM_TRIANGLE_FAN:
- s->repeat_first = TRUE;
- repeat = 1;
- break;
- case PIPE_PRIM_QUADS:
- max_verts &= ~3;
- break;
- case PIPE_PRIM_QUAD_STRIP:
- max_verts &= ~1;
- repeat = 2;
- break;
- case PIPE_PRIM_POINTS:
- break;
- default:
- /* TODO: implement adjacency primitives */
- assert(0);
- }
-
- s->emit (s->priv, s->p_start, max_verts);
- s->p_start += (max_verts - repeat);
- return FALSE;
-}
-
-#endif /* U_SPLIT_PRIM_H */
+/* Originally written by Ben Skeggs for the nv50 driver*/ + +#ifndef U_SPLIT_PRIM_H +#define U_SPLIT_PRIM_H + +#include "pipe/p_defines.h" +#include "pipe/p_compiler.h" + +#include "util/u_debug.h" + +struct util_split_prim { + void *priv; + void (*emit)(void *priv, unsigned start, unsigned count); + void (*edge)(void *priv, boolean enabled); + + unsigned mode; + unsigned start; + unsigned p_start; + unsigned p_end; + + uint repeat_first:1; + uint close_first:1; + uint edgeflag_off:1; +}; + +static INLINE void +util_split_prim_init(struct util_split_prim *s, + unsigned mode, unsigned start, unsigned count) +{ + if (mode == PIPE_PRIM_LINE_LOOP) { + s->mode = PIPE_PRIM_LINE_STRIP; + s->close_first = 1; + } else { + s->mode = mode; + s->close_first = 0; + } + s->start = start; + s->p_start = start; + s->p_end = start + count; + s->edgeflag_off = 0; + s->repeat_first = 0; +} + +static INLINE boolean +util_split_prim_next(struct util_split_prim *s, unsigned max_verts) +{ + int repeat = 0; + + if (s->repeat_first) { + s->emit(s->priv, s->start, 1); + max_verts--; + if (s->edgeflag_off) { + s->edge(s->priv, TRUE); + s->edgeflag_off = FALSE; + } + } + + if ((s->p_end - s->p_start) + s->close_first <= max_verts) { + s->emit(s->priv, s->p_start, s->p_end - s->p_start); + if (s->close_first) + s->emit(s->priv, s->start, 1); + return TRUE; + } + + switch (s->mode) { + case PIPE_PRIM_LINES: + max_verts &= ~1; + break; + case PIPE_PRIM_LINE_STRIP: + repeat = 1; + break; + case PIPE_PRIM_POLYGON: + max_verts--; + s->emit(s->priv, s->p_start, max_verts); + s->edge(s->priv, FALSE); + s->emit(s->priv, s->p_start + max_verts, 1); + s->p_start += max_verts; + s->repeat_first = TRUE; + s->edgeflag_off = TRUE; + return FALSE; + case PIPE_PRIM_TRIANGLES: + max_verts = max_verts - (max_verts % 3); + break; + case PIPE_PRIM_TRIANGLE_STRIP: + /* to ensure winding stays correct, always split + * on an even number of generated triangles + */ + max_verts = max_verts & ~1; + repeat = 2; + break; + case PIPE_PRIM_TRIANGLE_FAN: + s->repeat_first = TRUE; + repeat = 1; + break; + case PIPE_PRIM_QUADS: + max_verts &= ~3; + break; + case PIPE_PRIM_QUAD_STRIP: + max_verts &= ~1; + repeat = 2; + break; + case PIPE_PRIM_POINTS: + break; + default: + /* TODO: implement adjacency primitives */ + assert(0); + } + + s->emit (s->priv, s->p_start, max_verts); + s->p_start += (max_verts - repeat); + return FALSE; +} + +#endif /* U_SPLIT_PRIM_H */ |