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draw: implement triangle lists with adjacency support in gs

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This commit is contained in:
Zack Rusin
2010-06-17 12:05:15 -04:00
parent 06b854752f
commit f542a2770a
2 changed files with 31 additions and 1 deletions
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24
src/gallium/auxiliary/draw/draw_gs.c
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@@ -336,7 +336,6 @@ static void gs_line_adj(struct draw_geometry_shader *shader,
gs_flush(shader, 1); gs_flush(shader, 1);
} }
static void gs_tri(struct draw_geometry_shader *shader, static void gs_tri(struct draw_geometry_shader *shader,
int i0, int i1, int i2) int i0, int i1, int i2)
{ {
@@ -352,7 +351,27 @@ static void gs_tri(struct draw_geometry_shader *shader,
gs_flush(shader, 1); gs_flush(shader, 1);
} }
static void gs_tri_adj(struct draw_geometry_shader *shader,
int i0, int i1, int i2,
int i3, int i4, int i5)
{
unsigned indices[6];
indices[0] = i0;
indices[1] = i1;
indices[2] = i2;
indices[3] = i3;
indices[4] = i4;
indices[5] = i5;
draw_fetch_gs_input(shader, indices, 6, 0);
++shader->in_prim_idx;
gs_flush(shader, 1);
}
#define TRIANGLE(gs,i0,i1,i2) gs_tri(gs,i0,i1,i2) #define TRIANGLE(gs,i0,i1,i2) gs_tri(gs,i0,i1,i2)
#define TRI_ADJ(gs,i0,i1,i2,i3,i4,i5) gs_tri_adj(gs,i0,i1,i2,i3,i4,i5)
#define LINE(gs,i0,i1) gs_line(gs,i0,i1) #define LINE(gs,i0,i1) gs_line(gs,i0,i1)
#define LINE_ADJ(gs,i0,i1,i2,i3) gs_line_adj(gs,i0,i1,i2,i3) #define LINE_ADJ(gs,i0,i1,i2,i3) gs_line_adj(gs,i0,i1,i2,i3)
#define POINT(gs,i0) gs_point(gs,i0) #define POINT(gs,i0) gs_point(gs,i0)
@@ -362,6 +381,9 @@ static void gs_tri(struct draw_geometry_shader *shader,
#define TRIANGLE(gs,i0,i1,i2) gs_tri(gs,elts[i0],elts[i1],elts[i2]) #define TRIANGLE(gs,i0,i1,i2) gs_tri(gs,elts[i0],elts[i1],elts[i2])
#define TRI_ADJ(gs,i0,i1,i2,i3,i4,i5) \
gs_tri_adj(gs,elts[i0],elts[i1],elts[i2],elts[i3], \
elts[i4],elts[i5])
#define LINE(gs,i0,i1) gs_line(gs,elts[i0],elts[i1]) #define LINE(gs,i0,i1) gs_line(gs,elts[i0],elts[i1])
#define LINE_ADJ(gs,i0,i1,i2,i3) gs_line_adj(gs,elts[i0], \ #define LINE_ADJ(gs,i0,i1,i2,i3) gs_line_adj(gs,elts[i0], \
elts[i1], \ elts[i1], \

8
src/gallium/auxiliary/draw/draw_gs_tmp.h
View File

@@ -118,6 +118,13 @@ static void FUNC( struct draw_geometry_shader *shader,
} }
break; break;
case PIPE_PRIM_TRIANGLES_ADJACENCY:
for (i = 0; i+5 < count; i += 5) {
TRI_ADJ( shader, i + 0, i + 1, i + 2,
i + 3, i + 4, i + 5);
}
break;
default: default:
debug_assert(!"Unsupported primitive in geometry shader"); debug_assert(!"Unsupported primitive in geometry shader");
break; break;
@@ -126,6 +133,7 @@ static void FUNC( struct draw_geometry_shader *shader,
#undef TRIANGLE #undef TRIANGLE
#undef TRI_ADJ
#undef POINT #undef POINT
#undef LINE #undef LINE
#undef LINE_ADJ #undef LINE_ADJ