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-rw-r--r--src/gallium/auxiliary/draw/draw_pipe.c22
-rw-r--r--src/gallium/auxiliary/draw/draw_pipe_vbuf.c15
-rw-r--r--src/gallium/auxiliary/draw/draw_pt_decompose.h65
-rw-r--r--src/gallium/auxiliary/draw/draw_pt_vcache.c34
-rw-r--r--src/gallium/auxiliary/draw/draw_pt_vcache_tmp.h73
5 files changed, 150 insertions, 59 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pipe.c b/src/gallium/auxiliary/draw/draw_pipe.c
index 3cde9d36d3..2e3f5b2fc0 100644
--- a/src/gallium/auxiliary/draw/draw_pipe.c
+++ b/src/gallium/auxiliary/draw/draw_pipe.c
@@ -216,22 +216,22 @@ void draw_pipeline_run( struct draw_context *draw,
( DRAW_PIPE_RESET_STIPPLE | \
DRAW_PIPE_EDGE_FLAG_0 | \
DRAW_PIPE_EDGE_FLAG_2 ), \
- verts + stride * ((i0) & ~DRAW_PIPE_FLAG_MASK), \
- verts + stride * (i1), \
+ verts + stride * ((i0) & ~DRAW_PIPE_FLAG_MASK), \
+ verts + stride * (i1), \
verts + stride * (i3)); \
- do_triangle( draw, \
- ( DRAW_PIPE_EDGE_FLAG_0 | \
- DRAW_PIPE_EDGE_FLAG_1 ), \
- verts + stride * ((i1) & ~DRAW_PIPE_FLAG_MASK), \
- verts + stride * (i2), \
- verts + stride * (i3))
+ do_triangle( draw, \
+ ( DRAW_PIPE_EDGE_FLAG_0 | \
+ DRAW_PIPE_EDGE_FLAG_1 ), \
+ verts + stride * ((i1) & ~DRAW_PIPE_FLAG_MASK), \
+ verts + stride * (i2), \
+ verts + stride * (i3))
#define TRIANGLE(flags,i0,i1,i2) \
do_triangle( draw, \
flags, /* flags */ \
- verts + stride * ((i0) & ~DRAW_PIPE_FLAG_MASK), \
- verts + stride * (i1), \
- verts + stride * (i2))
+ verts + stride * ((i0) & ~DRAW_PIPE_FLAG_MASK), \
+ verts + stride * (i1), \
+ verts + stride * (i2))
#define LINE(flags,i0,i1) \
do_line( draw, \
diff --git a/src/gallium/auxiliary/draw/draw_pipe_vbuf.c b/src/gallium/auxiliary/draw/draw_pipe_vbuf.c
index a5d840b96e..1a5269c0de 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_vbuf.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_vbuf.c
@@ -159,8 +159,19 @@ vbuf_tri( struct draw_stage *stage,
check_space( vbuf, 3 );
- for (i = 0; i < 3; i++) {
- vbuf->indices[vbuf->nr_indices++] = emit_vertex( vbuf, prim->v[i] );
+ if (vbuf->stage.draw->rasterizer->flatshade_first) {
+ /* Put provoking vertex in position expected by the driver.
+ * Emit last provoking vertex in first pos.
+ * Swap verts 0 & 1 to preserve polygon winding.
+ */
+ vbuf->indices[vbuf->nr_indices++] = emit_vertex( vbuf, prim->v[2] );
+ vbuf->indices[vbuf->nr_indices++] = emit_vertex( vbuf, prim->v[0] );
+ vbuf->indices[vbuf->nr_indices++] = emit_vertex( vbuf, prim->v[1] );
+ }
+ else {
+ for (i = 0; i < 3; i++) {
+ vbuf->indices[vbuf->nr_indices++] = emit_vertex( vbuf, prim->v[i] );
+ }
}
}
diff --git a/src/gallium/auxiliary/draw/draw_pt_decompose.h b/src/gallium/auxiliary/draw/draw_pt_decompose.h
index 3fb0695687..4ca5b52020 100644
--- a/src/gallium/auxiliary/draw/draw_pt_decompose.h
+++ b/src/gallium/auxiliary/draw/draw_pt_decompose.h
@@ -47,10 +47,19 @@ static void FUNC( ARGS,
case PIPE_PRIM_TRIANGLES:
for (i = 0; i+2 < count; i += 3) {
- TRIANGLE( DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL,
- (i + 0),
- (i + 1),
- (i + 2 ));
+ if (flatfirst) {
+ /* put provoking vertex in last pos for clipper */
+ TRIANGLE( DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL,
+ (i + 1),
+ (i + 2),
+ (i + 0 ));
+ }
+ else {
+ TRIANGLE( DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL,
+ (i + 0),
+ (i + 1),
+ (i + 2 ));
+ }
}
break;
@@ -58,9 +67,9 @@ static void FUNC( ARGS,
if (flatfirst) {
for (i = 0; i+2 < count; i++) {
TRIANGLE( DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL,
- (i + 0),
(i + 1 + (i&1)),
- (i + 2 - (i&1)));
+ (i + 2 - (i&1)),
+ (i + 0) );
}
}
else {
@@ -78,9 +87,9 @@ static void FUNC( ARGS,
if (flatfirst) {
for (i = 0; i+2 < count; i++) {
TRIANGLE( DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL,
- (i + 1),
(i + 2),
- (0 ));
+ 0,
+ (i + 1) );
}
}
else {
@@ -96,20 +105,40 @@ static void FUNC( ARGS,
case PIPE_PRIM_QUADS:
- for (i = 0; i+3 < count; i += 4) {
- QUAD( (i + 0),
- (i + 1),
- (i + 2),
- (i + 3));
+ if (flatfirst) {
+ for (i = 0; i+3 < count; i += 4) {
+ QUAD( (i + 1),
+ (i + 2),
+ (i + 3),
+ (i + 0) );
+ }
+ }
+ else {
+ for (i = 0; i+3 < count; i += 4) {
+ QUAD( (i + 0),
+ (i + 1),
+ (i + 2),
+ (i + 3));
+ }
}
break;
case PIPE_PRIM_QUAD_STRIP:
- for (i = 0; i+3 < count; i += 2) {
- QUAD( (i + 2),
- (i + 0),
- (i + 1),
- (i + 3));
+ if (flatfirst) {
+ for (i = 0; i+3 < count; i += 2) {
+ QUAD( (i + 1),
+ (i + 3),
+ (i + 2),
+ (i + 0) );
+ }
+ }
+ else {
+ for (i = 0; i+3 < count; i += 2) {
+ QUAD( (i + 2),
+ (i + 0),
+ (i + 1),
+ (i + 3));
+ }
}
break;
diff --git a/src/gallium/auxiliary/draw/draw_pt_vcache.c b/src/gallium/auxiliary/draw/draw_pt_vcache.c
index 5d268a2226..edb2aa73e1 100644
--- a/src/gallium/auxiliary/draw/draw_pt_vcache.c
+++ b/src/gallium/auxiliary/draw/draw_pt_vcache.c
@@ -193,16 +193,30 @@ vcache_ef_quad( struct vcache_frontend *vcache,
unsigned i2,
unsigned i3 )
{
- vcache_triangle_flags( vcache,
- ( DRAW_PIPE_RESET_STIPPLE |
- DRAW_PIPE_EDGE_FLAG_0 |
- DRAW_PIPE_EDGE_FLAG_2 ),
- i0, i1, i3 );
-
- vcache_triangle_flags( vcache,
- ( DRAW_PIPE_EDGE_FLAG_0 |
- DRAW_PIPE_EDGE_FLAG_1 ),
- i1, i2, i3 );
+ if (vcache->draw->rasterizer->flatshade_first) {
+ vcache_triangle_flags( vcache,
+ ( DRAW_PIPE_RESET_STIPPLE |
+ DRAW_PIPE_EDGE_FLAG_0 |
+ DRAW_PIPE_EDGE_FLAG_1 ),
+ i0, i1, i2 );
+
+ vcache_triangle_flags( vcache,
+ ( DRAW_PIPE_EDGE_FLAG_2 |
+ DRAW_PIPE_EDGE_FLAG_1 ),
+ i0, i2, i3 );
+ }
+ else {
+ vcache_triangle_flags( vcache,
+ ( DRAW_PIPE_RESET_STIPPLE |
+ DRAW_PIPE_EDGE_FLAG_0 |
+ DRAW_PIPE_EDGE_FLAG_2 ),
+ i0, i1, i3 );
+
+ vcache_triangle_flags( vcache,
+ ( DRAW_PIPE_EDGE_FLAG_0 |
+ DRAW_PIPE_EDGE_FLAG_1 ),
+ i1, i2, i3 );
+ }
}
/* At least for now, we're back to using a template include file for
diff --git a/src/gallium/auxiliary/draw/draw_pt_vcache_tmp.h b/src/gallium/auxiliary/draw/draw_pt_vcache_tmp.h
index ec05bbeab4..62822a3d56 100644
--- a/src/gallium/auxiliary/draw/draw_pt_vcache_tmp.h
+++ b/src/gallium/auxiliary/draw/draw_pt_vcache_tmp.h
@@ -118,21 +118,39 @@ static void FUNC( struct draw_pt_front_end *frontend,
case PIPE_PRIM_QUADS:
for (i = 0; i+3 < count; i += 4) {
- QUAD( vcache,
- get_elt(elts, i + 0),
- get_elt(elts, i + 1),
- get_elt(elts, i + 2),
- get_elt(elts, i + 3));
+ if (flatfirst) {
+ QUAD( vcache,
+ get_elt(elts, i + 0),
+ get_elt(elts, i + 1),
+ get_elt(elts, i + 2),
+ get_elt(elts, i + 3) );
+ }
+ else {
+ QUAD( vcache,
+ get_elt(elts, i + 0),
+ get_elt(elts, i + 1),
+ get_elt(elts, i + 2),
+ get_elt(elts, i + 3) );
+ }
}
break;
case PIPE_PRIM_QUAD_STRIP:
for (i = 0; i+3 < count; i += 2) {
- QUAD( vcache,
- get_elt(elts, i + 2),
- get_elt(elts, i + 0),
- get_elt(elts, i + 1),
- get_elt(elts, i + 3));
+ if (flatfirst) {
+ QUAD( vcache,
+ get_elt(elts, i + 0),
+ get_elt(elts, i + 1),
+ get_elt(elts, i + 3),
+ get_elt(elts, i + 2) );
+ }
+ else {
+ QUAD( vcache,
+ get_elt(elts, i + 2),
+ get_elt(elts, i + 0),
+ get_elt(elts, i + 1),
+ get_elt(elts, i + 3) );
+ }
}
break;
@@ -144,19 +162,38 @@ static void FUNC( struct draw_pt_front_end *frontend,
const ushort edge_first = DRAW_PIPE_EDGE_FLAG_2;
const ushort edge_middle = DRAW_PIPE_EDGE_FLAG_0;
const ushort edge_last = DRAW_PIPE_EDGE_FLAG_1;
+ ushort edge_next, edge_finish;
- flags = DRAW_PIPE_RESET_STIPPLE | edge_first | edge_middle;
+ if (flatfirst) {
+ flags = DRAW_PIPE_RESET_STIPPLE | edge_middle | edge_last;
+ edge_next = edge_last;
+ edge_finish = edge_first;
+ }
+ else {
+ flags = DRAW_PIPE_RESET_STIPPLE | edge_first | edge_middle;
+ edge_next = edge_middle;
+ edge_finish = edge_last;
+ }
- for (i = 0; i+2 < count; i++, flags = edge_middle) {
+ for (i = 0; i+2 < count; i++, flags = edge_next) {
if (i + 3 == count)
- flags |= edge_last;
+ flags |= edge_finish;
- TRIANGLE( vcache,
- flags,
- get_elt(elts, i + 1),
- get_elt(elts, i + 2),
- get_elt(elts, 0));
+ if (flatfirst) {
+ TRIANGLE( vcache,
+ flags,
+ get_elt(elts, 0),
+ get_elt(elts, i + 1),
+ get_elt(elts, i + 2) );
+ }
+ else {
+ TRIANGLE( vcache,
+ flags,
+ get_elt(elts, i + 1),
+ get_elt(elts, i + 2),
+ get_elt(elts, 0));
+ }
}
}
break;
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-05 23:32:29 +0000