diff options
| author | Kenneth Graunke <kenneth@whitecape.org> | 2016-03-10 15:51:56 -0800 |
|---|---|---|
| committer | Kenneth Graunke <kenneth@whitecape.org> | 2016-03-18 18:41:59 -0700 |
| commit | 47be5a64c786e04578bebe21601b3c0821be75a0 (patch) | |
| tree | 7c03d00f86b2d8e96435910a2ba5897d4bb886b6 | |
| parent | 757674e8d00772ce091e75df186e6c27821bd53d (diff) | |
i965: Introduce an is_drawing_lines() helper.
Similar to is_drawing_points().
v2: Account for isoline tessellation output topology.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_state.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_state.h b/src/mesa/drivers/dri/i965/brw_state.h index 79ee5029bd4..783af78479e 100644 --- a/src/mesa/drivers/dri/i965/brw_state.h +++ b/src/mesa/drivers/dri/i965/brw_state.h @@ -430,6 +430,36 @@ is_drawing_points(const struct brw_context *brw) } } +static inline bool +is_drawing_lines(const struct brw_context *brw) +{ + /* Determine if the primitives *reaching the SF* are points */ + /* _NEW_POLYGON */ + if (brw->ctx.Polygon.FrontMode == GL_LINE || + brw->ctx.Polygon.BackMode == GL_LINE) { + return true; + } + + if (brw->geometry_program) { + /* BRW_NEW_GEOMETRY_PROGRAM */ + return brw->geometry_program->OutputType == GL_LINE_STRIP; + } else if (brw->tes.prog_data) { + /* BRW_NEW_TES_PROG_DATA */ + return brw->tes.prog_data->output_topology == + BRW_TESS_OUTPUT_TOPOLOGY_LINE; + } else { + /* BRW_NEW_PRIMITIVE */ + switch (brw->primitive) { + case _3DPRIM_LINELIST: + case _3DPRIM_LINESTRIP: + case _3DPRIM_LINELOOP: + return true; + } + } + return false; +} + + #ifdef __cplusplus } #endif |