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authorBrian <brian.paul@tungstengraphics.com>2008-01-09 14:44:19 -0700
committerBrian <brian.paul@tungstengraphics.com>2008-01-09 17:50:37 -0700
commitc7a22c39792d6ff430af84502d578824081dbd3f (patch)
tree0a2749d76e0c802621c27a294c41b9ce9ecc8155 /src
parentd48c6e7b21839791ff53308187cc2aeed9fb618c (diff)
move cliprect bounds, do trivial rejection triangle clipping
Diffstat (limited to 'src')
-rw-r--r--src/mesa/pipe/cell/spu/tri.c72
1 files changed, 36 insertions, 36 deletions
diff --git a/src/mesa/pipe/cell/spu/tri.c b/src/mesa/pipe/cell/spu/tri.c
index 58fca2e34a..5d4790fe6c 100644
--- a/src/mesa/pipe/cell/spu/tri.c
+++ b/src/mesa/pipe/cell/spu/tri.c
@@ -72,8 +72,6 @@
#define PIPE_MAX_SHADER_INPUTS 8 /* XXX temp */
-static int cliprect_minx, cliprect_maxx, cliprect_miny, cliprect_maxy;
-
#endif
@@ -124,6 +122,8 @@ struct setup_stage {
float oneoverarea;
+ int cliprect_minx, cliprect_maxx, cliprect_miny, cliprect_maxy;
+
#if 0
struct tgsi_interp_coef coef[PIPE_MAX_SHADER_INPUTS];
#else
@@ -276,8 +276,8 @@ emit_quad( struct setup_stage *setup, int x, int y, unsigned mask )
sp->quad.first->run(sp->quad.first, &setup->quad);
#else
/* Cell: "write" quad fragments to the tile by setting prim color */
- int ix = x - cliprect_minx;
- int iy = y - cliprect_miny;
+ int ix = x - setup->cliprect_minx;
+ int iy = y - setup->cliprect_miny;
float colors[4][4];
uint z;
@@ -497,6 +497,20 @@ static boolean setup_sort_vertices( struct setup_stage *setup,
}
}
+ /* Check if triangle is completely outside the tile bounds */
+ if (setup->vmin->data[0][1] > setup->cliprect_maxy)
+ return FALSE;
+ if (setup->vmax->data[0][1] < setup->cliprect_miny)
+ return FALSE;
+ if (setup->vmin->data[0][0] < setup->cliprect_minx &&
+ setup->vmid->data[0][0] < setup->cliprect_minx &&
+ setup->vmax->data[0][0] < setup->cliprect_minx)
+ return FALSE;
+ if (setup->vmin->data[0][0] > setup->cliprect_maxx &&
+ setup->vmid->data[0][0] > setup->cliprect_maxx &&
+ setup->vmax->data[0][0] > setup->cliprect_maxx)
+ return FALSE;
+
setup->ebot.dx = setup->vmid->data[0][0] - setup->vmin->data[0][0];
setup->ebot.dy = setup->vmid->data[0][1] - setup->vmin->data[0][1];
setup->emaj.dx = setup->vmax->data[0][0] - setup->vmin->data[0][0];
@@ -733,18 +747,10 @@ static void subtriangle( struct setup_stage *setup,
struct edge *eright,
unsigned lines )
{
-#if 0
- const struct pipe_scissor_state *cliprect = &setup->softpipe->cliprect;
- const int minx = (int) cliprect->minx;
- const int maxx = (int) cliprect->maxx;
- const int miny = (int) cliprect->miny;
- const int maxy = (int) cliprect->maxy;
-#else
- const int minx = cliprect_minx;
- const int maxx = cliprect_maxx;
- const int miny = cliprect_miny;
- const int maxy = cliprect_maxy;
-#endif
+ const int minx = setup->cliprect_minx;
+ const int maxx = setup->cliprect_maxx;
+ const int miny = setup->cliprect_miny;
+ const int maxy = setup->cliprect_maxy;
int y, start_y, finish_y;
int sy = (int)eleft->sy;
@@ -810,25 +816,19 @@ static void subtriangle( struct setup_stage *setup,
/**
* Do setup for triangle rasterization, then render the triangle.
*/
-static void setup_tri(
-#if 0
- struct draw_stage *stage,
-#endif
- struct prim_header *prim )
+static void
+setup_tri(struct setup_stage *setup, struct prim_header *prim)
{
-#if 0
- struct setup_stage *setup = setup_stage( stage );
-#else
- struct setup_stage ss;
- struct setup_stage *setup = &ss;
- ss.color = prim->color;
-#endif
+ setup->color = prim->color; /* XXX temporary */
/*
_mesa_printf("%s\n", __FUNCTION__ );
*/
- setup_sort_vertices( setup, prim );
+ if (!setup_sort_vertices( setup, prim )) {
+ return; /* totally clipped */
+ }
+
setup_tri_coefficients( setup );
setup_tri_edges( setup );
@@ -930,13 +930,13 @@ struct draw_stage *sp_draw_render_stage( struct softpipe_context *softpipe )
void
tri_draw(struct prim_header *tri, uint tx, uint ty)
{
+ struct setup_stage setup;
+
/* set clipping bounds to tile bounds */
- cliprect_minx = tx * TILE_SIZE;
- cliprect_miny = ty * TILE_SIZE;
- cliprect_maxx = (tx + 1) * TILE_SIZE;
- cliprect_maxy = (ty + 1) * TILE_SIZE;
+ setup.cliprect_minx = tx * TILE_SIZE;
+ setup.cliprect_miny = ty * TILE_SIZE;
+ setup.cliprect_maxx = (tx + 1) * TILE_SIZE;
+ setup.cliprect_maxy = (ty + 1) * TILE_SIZE;
- setup_tri(tri);
+ setup_tri(&setup, tri);
}
-
-