Mesa (master): softpipe: handle more PIPE_CAP_x queries

[Brian Paul]

Module: Mesa
Branch: master
Commit: 7d23dcdaccaabece42adf82ef6cddbfc85582b63
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=7d23dcdaccaabece42adf82ef6cddbfc85582b63

Author: Brian Paul <brianp at vmware.com>
Date:   Tue Jun 26 14:02:43 2012 -0600

softpipe: handle more PIPE_CAP_x queries

These all return zero.  Add a debug_printf() to catch the default case so
we don't accidently mishandle something important in the future.

v2: remove 'default' case to get compile-time warning

Reviewed-by: Marek Olšák <maraeo at gmail.com>
Reviewed-by: José Fonseca <jfonseca at vmware.com>

---

 src/gallium/drivers/softpipe/sp_screen.c |   34 +++++++++++++++++++++++++++--
 1 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index cdc7867..ade97a7 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -108,6 +108,8 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
       return 1;
+   case PIPE_CAP_DEPTH_CLIP_DISABLE:
+      return 0;
    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
       return PIPE_MAX_SO_BUFFERS;
    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
@@ -122,6 +124,11 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_TGSI_INSTANCEID:
    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
       return 1;
+   case PIPE_CAP_SEAMLESS_CUBE_MAP:
+   case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
+      return 0;
+   case PIPE_CAP_SCALED_RESOLVE:
+      return 0;
    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
       return 256; /* for GL3 */
    case PIPE_CAP_MIN_TEXEL_OFFSET:
@@ -130,23 +137,38 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
       return 7;
    case PIPE_CAP_CONDITIONAL_RENDER:
       return 1;
+   case PIPE_CAP_TEXTURE_BARRIER:
+      return 0;
    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED: /* draw module */
    case PIPE_CAP_VERTEX_COLOR_CLAMPED: /* draw module */
       return 1;
+   case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
+      return 0;
    case PIPE_CAP_GLSL_FEATURE_LEVEL:
       return 130;
    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
       return 0;
+   case PIPE_CAP_COMPUTE:
+      return 0;
    case PIPE_CAP_USER_VERTEX_BUFFERS:
    case PIPE_CAP_USER_INDEX_BUFFERS:
    case PIPE_CAP_USER_CONSTANT_BUFFERS:
       return 1;
    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
       return 16;
-   default:
+   case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
+   case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
+   case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
+   case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
+   case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
+   case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
+   case PIPE_CAP_START_INSTANCE:
       return 0;
    }
+   /* should only get here on unhandled cases */
+   debug_printf("Unexpected PIPE_CAP %d query\n", param);
+   return 0;
 }
 
 static int
@@ -199,9 +221,15 @@ softpipe_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
       return 16.0;
    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
       return 16.0; /* arbitrary */
-   default:
-      return 0;
+   case PIPE_CAPF_GUARD_BAND_LEFT:
+   case PIPE_CAPF_GUARD_BAND_TOP:
+   case PIPE_CAPF_GUARD_BAND_RIGHT:
+   case PIPE_CAPF_GUARD_BAND_BOTTOM:
+      return 0.0;
    }
+   /* should only get here on unhandled cases */
+   debug_printf("Unexpected PIPE_CAPF %d query\n", param);
+   return 0.0;
 }
 
 static int