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I965: fix bug#9625-get the correct PV for quardstrip

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The order of vertices in payload for quardstrip is (0, 1, 3, 2),
so the PV for quardstrip is c->reg.vertex[2].
This commit is contained in:
Xiang, Haihao
2007-01-17 10:39:50 +08:00
parent afba8f0d30
commit 747c9129c0
3 changed files with 15 additions and 1 deletions
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src/mesa/drivers/dri/i965/brw_gs.c
+4 -1
View File
@@ -82,6 +82,9 @@ static void compile_gs_prog( struct brw_context *brw,
case GL_QUADS:
brw_gs_quads( &c );
break;
case GL_QUAD_STRIP:
brw_gs_quad_strip( &c );
break;
case GL_LINE_LOOP:
brw_gs_lines( &c );
break;
@@ -145,7 +148,7 @@ static const GLenum gs_prim[GL_POLYGON+1] = {
GL_TRIANGLES,
GL_TRIANGLES,
GL_QUADS,
GL_QUADS,
GL_QUAD_STRIP,
GL_TRIANGLES
};
src/mesa/drivers/dri/i965/brw_gs.h
+1
View File
@@ -67,6 +67,7 @@ struct brw_gs_compile {
#define ATTR_SIZE (4*4)
void brw_gs_quads( struct brw_gs_compile *c );
void brw_gs_quad_strip( struct brw_gs_compile *c );
void brw_gs_tris( struct brw_gs_compile *c );
void brw_gs_lines( struct brw_gs_compile *c );
void brw_gs_points( struct brw_gs_compile *c );
src/mesa/drivers/dri/i965/brw_gs_emit.c
+10
View File
@@ -116,6 +116,16 @@ void brw_gs_quads( struct brw_gs_compile *c )
brw_gs_emit_vue(c, c->reg.vertex[2], 1, ((_3DPRIM_POLYGON << 2) | R02_PRIM_END));
}
void brw_gs_quad_strip( struct brw_gs_compile *c )
{
brw_gs_alloc_regs(c, 4);
brw_gs_emit_vue(c, c->reg.vertex[2], 0, ((_3DPRIM_POLYGON << 2) | R02_PRIM_START));
brw_gs_emit_vue(c, c->reg.vertex[3], 0, (_3DPRIM_POLYGON << 2));
brw_gs_emit_vue(c, c->reg.vertex[0], 0, (_3DPRIM_POLYGON << 2));
brw_gs_emit_vue(c, c->reg.vertex[1], 1, ((_3DPRIM_POLYGON << 2) | R02_PRIM_END));
}
void brw_gs_tris( struct brw_gs_compile *c )
{
brw_gs_alloc_regs(c, 3);