diff options
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_quad_stipple.c')
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_quad_stipple.c | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/src/gallium/drivers/softpipe/sp_quad_stipple.c b/src/gallium/drivers/softpipe/sp_quad_stipple.c index ec7bb3c95e..05e862f097 100644 --- a/src/gallium/drivers/softpipe/sp_quad_stipple.c +++ b/src/gallium/drivers/softpipe/sp_quad_stipple.c @@ -24,6 +24,8 @@ stipple_quad(struct quad_stage *qs, struct quad_header *quad) /* need to invert Y to index into OpenGL's stipple pattern */ int y0, y1; uint stipple0, stipple1; + const int col0 = quad->input.x0 % 32; + if (softpipe->rasterizer->origin_lower_left) { y0 = softpipe->framebuffer.height - 1 - quad->input.y0; y1 = y0 - 1; @@ -32,12 +34,11 @@ stipple_quad(struct quad_stage *qs, struct quad_header *quad) y0 = quad->input.y0; y1 = y0 + 1; } + stipple0 = softpipe->poly_stipple.stipple[y0 % 32]; stipple1 = softpipe->poly_stipple.stipple[y1 % 32]; -#if 1 - { - const int col0 = quad->input.x0 % 32; + /* turn off quad mask bits that fail the stipple test */ if ((stipple0 & (bit31 >> col0)) == 0) quad->inout.mask &= ~MASK_TOP_LEFT; @@ -49,19 +50,11 @@ stipple_quad(struct quad_stage *qs, struct quad_header *quad) if ((stipple1 & (bit30 >> col0)) == 0) quad->inout.mask &= ~MASK_BOTTOM_RIGHT; - } -#else - /* We'd like to use this code, but we'd need to redefine - * MASK_TOP_LEFT to be (1 << 1) and MASK_TOP_RIGHT to be (1 << 0), - * and similarly for the BOTTOM bits. But that may have undesirable - * side effects elsewhere. - */ - const int col0 = 30 - (quad->input.x0 % 32); - quad->inout.mask &= (((stipple0 >> col0) & 0x3) | - (((stipple1 >> col0) & 0x3) << 2)); -#endif - if (!quad->inout.mask) + + if (!quad->inout.mask) { + /* all fragments failed stipple test, end of quad pipeline */ return; + } } qs->next->run(qs->next, quad); |