Mesa (master): svga: add missing cases for PIPE_CAP_x queries

[Brian Paul]

Module: Mesa
Branch: master
Commit: ecc480524bf56076e05291529f65dc996114aa90
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=ecc480524bf56076e05291529f65dc996114aa90

Author: Brian Paul <brianp at vmware.com>
Date:   Thu Apr  5 15:28:09 2012 -0600

svga: add missing cases for PIPE_CAP_x queries

Return 0 for features we don't support.  Added debug_printf()
warnings when we fail to handle a new PIPE_CAP_x case.  That will
alert us to interfaces changes in the future.  We don't want to
just ignore new PIPE_CAPs and possibly miss something important.

Reviewed-by: José Fonseca <jfonseca at vmware.com>

---

 src/gallium/drivers/svga/svga_screen.c |   49 +++++++++++++++++++++++++++----
 1 files changed, 42 insertions(+), 7 deletions(-)

diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c
index b2f3e33..a5d28b1 100644
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -120,6 +120,7 @@ svga_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
       return 15.0;
 
    default:
+      debug_printf("Unexpected PIPE_CAPF_ query %u\n", param);
       return 0;
    }
 }
@@ -197,11 +198,6 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
 
    case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
       return 1;
-   case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
-      return 0;
-
-   case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
-      return 0;
 
    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
       return 1; /* The color outputs of vertex shaders are not clamped */
@@ -210,7 +206,36 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
       return 0; /* The driver can't clamp fragment colors */
 
+   /* Unsupported features */
+   case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
+   case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
+   case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
+   case PIPE_CAP_SM3:
+   case PIPE_CAP_SHADER_STENCIL_EXPORT:
+   case PIPE_CAP_DEPTH_CLIP_DISABLE:
+   case PIPE_CAP_SEAMLESS_CUBE_MAP:
+   case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
+   case PIPE_CAP_INDEP_BLEND_ENABLE:
+   case PIPE_CAP_INDEP_BLEND_FUNC:
+   case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
+   case PIPE_CAP_PRIMITIVE_RESTART:
+   case PIPE_CAP_TGSI_INSTANCEID:
+   case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
+   case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
+   case PIPE_CAP_MIN_TEXEL_OFFSET:
+   case PIPE_CAP_MAX_TEXEL_OFFSET:
+   case PIPE_CAP_CONDITIONAL_RENDER:
+   case PIPE_CAP_TEXTURE_BARRIER:
+   case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
+   case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
+   case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
+   case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
+   case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
+   case PIPE_CAP_GLSL_FEATURE_LEVEL:
+      return 0;
+
    default:
+      debug_printf("Unexpected PIPE_CAP_ query %u\n", param);
       return 0;
    }
 }
@@ -266,6 +291,9 @@ static int svga_get_shader_param(struct pipe_screen *screen, unsigned shader, en
          return 0;
       case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
          return 16;
+      default:
+         debug_printf("Unexpected vertex shader query %u\n", param);
+         return 0;
       }
       break;
    case PIPE_SHADER_VERTEX:
@@ -309,12 +337,19 @@ static int svga_get_shader_param(struct pipe_screen *screen, unsigned shader, en
          return 0;
       case PIPE_SHADER_CAP_INTEGERS:
          return 0;
+      case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
+         return 0;
       default:
-         break;
+         debug_printf("Unexpected vertex shader query %u\n", param);
+         return 0;
       }
       break;
+   case PIPE_SHADER_GEOMETRY:
+      /* no support for geometry shaders at this time */
+      return 0;
    default:
-      break;
+      debug_printf("Unexpected vertex shader query %u\n", param);
+      return 0;
    }
    return 0;
 }