diff options
| author | Axel Davy <[email protected]> | 2016-06-14 23:13:26 +0200 |
|---|---|---|
| committer | Axel Davy <[email protected]> | 2016-06-25 10:16:15 +0200 |
| commit | f6704f2a4db7113e597d4bab2cefc02e166c2ad9 (patch) | |
| tree | 8a13fe277703cf69b747a0300a2ec4c750b02787 /src/gallium/drivers/r600/r600_pipe.c | |
| parent | be7957b156e30ffe9fb647b58ba00e236e498c3f (diff) | |
r600g: Implement POLYGON_OFFSET_UNITS_UNSCALED
Empirical tests show that the polygon offset
behaviour is entirely determined by the content of
the PA_SU_POLY_OFFSET states, and not by the depth buffer
format bound.
PA_SU_POLY_OFFSET seems to directly set the parameters of
the polygon offset formula, and setting 0 for
PA_SU_POLY_OFFSET_DB_FMT_CNTL (ie setting the unorm depth
bias behaviour with a scale of 2^0 = 1.0f) gives the unscaled
behaviour.
Signed-off-by: Axel Davy <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
Diffstat (limited to 'src/gallium/drivers/r600/r600_pipe.c')
| -rw-r--r-- | src/gallium/drivers/r600/r600_pipe.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c index fe1af7c64bb..57721d92b85 100644 --- a/src/gallium/drivers/r600/r600_pipe.c +++ b/src/gallium/drivers/r600/r600_pipe.c @@ -282,6 +282,7 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param) case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS: case PIPE_CAP_QUERY_MEMORY_INFO: case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT: + case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED: return 1; case PIPE_CAP_DEVICE_RESET_STATUS_QUERY: @@ -370,7 +371,6 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param) case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES: case PIPE_CAP_TGSI_VOTE: case PIPE_CAP_MAX_WINDOW_RECTANGLES: - case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED: return 0; case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS: |