gallium: Add a pipe cap for arb_cull_distance

This lets us safely enable or disable the extension as needed

Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

src/gallium/docs/source/screen.rst

@@ -336,6 +336,8 @@ The integer capabilities:
   PIPE_CONTEXT_ROBUST_BUFFER_ACCESS. See the ARB_robust_buffer_access_behavior
   extension for information on the required behavior for out of bounds accesses
   and accesses to unbound resources.
+* ``PIPE_CAP_CULL_DISTANCE``: Whether the driver supports the arb_cull_distance
+  extension and thus implements proper support for culling planes.
 
 
 .. _pipe_capf:

src/gallium/drivers/freedreno/freedreno_screen.c

@@ -257,6 +257,7 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 	case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 	case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 	case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
+	case PIPE_CAP_CULL_DISTANCE:
 		return 0;
 
 	case PIPE_CAP_MAX_VIEWPORTS:

src/gallium/drivers/i915/i915_screen.c

@@ -271,6 +271,7 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
    case PIPE_CAP_PCI_FUNCTION:
    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
+   case PIPE_CAP_CULL_DISTANCE:
       return 0;
 
    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:

src/gallium/drivers/ilo/ilo_screen.c

@@ -500,6 +500,7 @@ ilo_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_PCI_FUNCTION:
    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
+   case PIPE_CAP_CULL_DISTANCE:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:

src/gallium/drivers/llvmpipe/lp_screen.c

@@ -321,6 +321,7 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_PCI_FUNCTION:
    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
+   case PIPE_CAP_CULL_DISTANCE:
       return 0;
    }
    /* should only get here on unhandled cases */

src/gallium/drivers/nouveau/nv30/nv30_screen.c

@@ -194,6 +194,7 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_PCI_FUNCTION:
    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
+   case PIPE_CAP_CULL_DISTANCE:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:

src/gallium/drivers/nouveau/nv50/nv50_screen.c

@@ -247,6 +247,7 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_PCI_FUNCTION:
    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
+   case PIPE_CAP_CULL_DISTANCE:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:

src/gallium/drivers/nouveau/nvc0/nvc0_screen.c

@@ -259,6 +259,7 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_PCI_DEVICE:
    case PIPE_CAP_PCI_FUNCTION:
    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
+   case PIPE_CAP_CULL_DISTANCE:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:

src/gallium/drivers/r300/r300_screen.c

@@ -216,6 +216,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
         case PIPE_CAP_QUERY_MEMORY_INFO:
         case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 	case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
+        case PIPE_CAP_CULL_DISTANCE:
             return 0;
 
         /* SWTCL-only features. */

src/gallium/drivers/r600/r600_pipe.c

@@ -366,6 +366,7 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_STRING_MARKER:
 	case PIPE_CAP_QUERY_BUFFER_OBJECT:
 	case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
+	case PIPE_CAP_CULL_DISTANCE:
 		return 0;
 
 	case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:

src/gallium/drivers/radeonsi/si_pipe.c

@@ -391,6 +391,7 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_GENERATE_MIPMAP:
 	case PIPE_CAP_STRING_MARKER:
 	case PIPE_CAP_QUERY_BUFFER_OBJECT:
+	case PIPE_CAP_CULL_DISTANCE:
 		return 0;
 
 	case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:

src/gallium/drivers/softpipe/sp_screen.c

@@ -272,6 +272,7 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_PCI_DEVICE:
    case PIPE_CAP_PCI_FUNCTION:
    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
+   case PIPE_CAP_CULL_DISTANCE:
       return 0;
    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
       return 4;

src/gallium/drivers/svga/svga_screen.c

@@ -406,6 +406,7 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
    case PIPE_CAP_QUERY_BUFFER_OBJECT:
    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
+   case PIPE_CAP_CULL_DISTANCE:
       return 0;
    }
 

src/gallium/drivers/vc4/vc4_screen.c

@@ -209,6 +209,7 @@ vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
         case PIPE_CAP_PCI_FUNCTION:
         case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
         case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
+        case PIPE_CAP_CULL_DISTANCE:
                 return 0;
 
                 /* Stream output. */

src/gallium/include/pipe/p_defines.h

@@ -726,6 +726,7 @@ enum pipe_cap
    PIPE_CAP_PCI_FUNCTION,
    PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT,
    PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR,
+   PIPE_CAP_CULL_DISTANCE,
 };
 
 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)