Module: Mesa
Branch: master
Commit: 1285f71d3e93f200cec0c321bb6e621d4aece7b3
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=1285f71d3e93f200cec0c321bb6e621d4aece7b3

Author: Marek Olšák <[email protected]>
Date:   Thu Sep  6 00:09:27 2018 -0400

gallium: add PIPE_CAP_RASTERIZER_SUBPIXEL_BITS

Reviewed-by: Roland Scheidegger <[email protected]>

---

 src/gallium/auxiliary/util/u_screen.c  | 3 +++
 src/gallium/docs/source/screen.rst     | 2 ++
 src/gallium/drivers/r600/r600_pipe.c   | 1 +
 src/gallium/drivers/radeonsi/si_get.c  | 1 +
 src/gallium/include/pipe/p_defines.h   | 1 +
 src/mesa/state_tracker/st_extensions.c | 1 +
 6 files changed, 9 insertions(+)

diff --git a/src/gallium/auxiliary/util/u_screen.c 
b/src/gallium/auxiliary/util/u_screen.c
index c41e28820b..f0290d04cc 100644
--- a/src/gallium/auxiliary/util/u_screen.c
+++ b/src/gallium/auxiliary/util/u_screen.c
@@ -254,6 +254,9 @@ u_pipe_screen_get_param_defaults(struct pipe_screen 
*pscreen,
    case PIPE_CAP_NATIVE_FENCE_FD:
       return 0;
 
+   case PIPE_CAP_RASTERIZER_SUBPIXEL_BITS:
+      return 4; /* GLES 2.0 minimum value */
+
    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
       return 1;
 
diff --git a/src/gallium/docs/source/screen.rst 
b/src/gallium/docs/source/screen.rst
index 93415a5df1..cb9d0e2a15 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -342,6 +342,8 @@ The integer capabilities:
   for ``pipe_rasterizer_state::offset_units_unscaled``.
 * ``PIPE_CAP_VIEWPORT_SUBPIXEL_BITS``: Number of bits of subpixel precision for
   floating point viewport bounds.
+* ``PIPE_CAP_RASTERIZER_SUBPIXEL_BITS``: Number of bits of subpixel precision 
used
+  by the rasterizer.
 * ``PIPE_CAP_MIXED_COLOR_DEPTH_BITS``: Whether there is non-fallback
   support for color/depth format combinations that use a different
   number of bits. For the purpose of this cap, Z24 is treated as
diff --git a/src/gallium/drivers/r600/r600_pipe.c 
b/src/gallium/drivers/r600/r600_pipe.c
index e10704bfc1..c6311bf8c3 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -507,6 +507,7 @@ static int r600_get_param(struct pipe_screen* pscreen, enum 
pipe_cap param)
        case PIPE_CAP_MAX_VIEWPORTS:
                return R600_MAX_VIEWPORTS;
        case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
+       case PIPE_CAP_RASTERIZER_SUBPIXEL_BITS:
                return 8;
 
        /* Timer queries, present when the clock frequency is non zero. */
diff --git a/src/gallium/drivers/radeonsi/si_get.c 
b/src/gallium/drivers/radeonsi/si_get.c
index d373c1a967..60f4b07113 100644
--- a/src/gallium/drivers/radeonsi/si_get.c
+++ b/src/gallium/drivers/radeonsi/si_get.c
@@ -286,6 +286,7 @@ static int si_get_param(struct pipe_screen *pscreen, enum 
pipe_cap param)
        case PIPE_CAP_MAX_VIEWPORTS:
                return SI_MAX_VIEWPORTS;
        case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
+       case PIPE_CAP_RASTERIZER_SUBPIXEL_BITS:
        case PIPE_CAP_MAX_RENDER_TARGETS:
                return 8;
        case PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS:
diff --git a/src/gallium/include/pipe/p_defines.h 
b/src/gallium/include/pipe/p_defines.h
index bdd3f4680f..3cff4d9fda 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -774,6 +774,7 @@ enum pipe_cap
    PIPE_CAP_MAX_WINDOW_RECTANGLES,
    PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED,
    PIPE_CAP_VIEWPORT_SUBPIXEL_BITS,
+   PIPE_CAP_RASTERIZER_SUBPIXEL_BITS,
    PIPE_CAP_MIXED_COLOR_DEPTH_BITS,
    PIPE_CAP_TGSI_ARRAY_COMPONENTS,
    PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS,
diff --git a/src/mesa/state_tracker/st_extensions.c 
b/src/mesa/state_tracker/st_extensions.c
index 244c12595e..319eef6a72 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -111,6 +111,7 @@ void st_init_limits(struct pipe_screen *screen,
    c->MaxRenderbufferSize = c->MaxTextureRectSize;
 
    c->SubPixelBits =
+      screen->get_param(screen, PIPE_CAP_RASTERIZER_SUBPIXEL_BITS);
    c->ViewportSubpixelBits =
       screen->get_param(screen, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS);
 

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