gallium: add PIPE_CAP_MAX_WINDOW_RECTANGLES to all drivers

This says how many window rectangles are supported by the
implementation, although it may not exceed PIPE_MAX_WINDOW_RECTANGLES.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Brian Paul <brianp@vmware.com>

src/gallium/docs/source/screen.rst

@@ -341,6 +341,8 @@ The integer capabilities:
 * ``PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES``: Whether primitive restart is
   supported for patch primitives.
 * ``PIPE_CAP_TGSI_VOTE``: Whether the ``VOTE_*`` ops can be used in shaders.
+* ``PIPE_CAP_MAX_WINDOW_RECTANGLES``: The maxium number of window rectangles
+  supported in ``set_window_rectangles``.
 
 
 .. _pipe_capf:

src/gallium/drivers/freedreno/freedreno_screen.c

@@ -263,6 +263,7 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 	case PIPE_CAP_CULL_DISTANCE:
 	case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 	case PIPE_CAP_TGSI_VOTE:
+	case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 		return 0;
 
 	case PIPE_CAP_MAX_VIEWPORTS:

src/gallium/drivers/i915/i915_screen.c

@@ -274,6 +274,7 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
    case PIPE_CAP_CULL_DISTANCE:
    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
    case PIPE_CAP_TGSI_VOTE:
+   case PIPE_CAP_MAX_WINDOW_RECTANGLES:
       return 0;
 
    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:

src/gallium/drivers/ilo/ilo_screen.c

@@ -503,6 +503,7 @@ ilo_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_CULL_DISTANCE:
    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
    case PIPE_CAP_TGSI_VOTE:
+   case PIPE_CAP_MAX_WINDOW_RECTANGLES:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:

src/gallium/drivers/llvmpipe/lp_screen.c

@@ -326,6 +326,7 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
    case PIPE_CAP_TGSI_VOTE:
+   case PIPE_CAP_MAX_WINDOW_RECTANGLES:
       return 0;
    }
    /* should only get here on unhandled cases */

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

@@ -197,6 +197,7 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_CULL_DISTANCE:
    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
    case PIPE_CAP_TGSI_VOTE:
+   case PIPE_CAP_MAX_WINDOW_RECTANGLES:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:

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

@@ -250,6 +250,7 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
    case PIPE_CAP_TGSI_VOTE:
+   case PIPE_CAP_MAX_WINDOW_RECTANGLES:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:

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

@@ -261,6 +261,7 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_PCI_BUS:
    case PIPE_CAP_PCI_DEVICE:
    case PIPE_CAP_PCI_FUNCTION:
+   case PIPE_CAP_MAX_WINDOW_RECTANGLES:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:

src/gallium/drivers/r300/r300_screen.c

@@ -219,6 +219,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
         case PIPE_CAP_CULL_DISTANCE:
         case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
         case PIPE_CAP_TGSI_VOTE:
+        case PIPE_CAP_MAX_WINDOW_RECTANGLES:
             return 0;
 
         /* SWTCL-only features. */

src/gallium/drivers/r600/r600_pipe.c

@@ -369,6 +369,7 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_CULL_DISTANCE:
 	case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 	case PIPE_CAP_TGSI_VOTE:
+	case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 		return 0;
 
 	case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:

src/gallium/drivers/radeonsi/si_pipe.c

@@ -415,6 +415,7 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_CULL_DISTANCE:
 	case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 	case PIPE_CAP_TGSI_VOTE:
+	case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 		return 0;
 
 	case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:

src/gallium/drivers/softpipe/sp_screen.c

@@ -276,6 +276,7 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
    case PIPE_CAP_TGSI_VOTE:
+   case PIPE_CAP_MAX_WINDOW_RECTANGLES:
       return 0;
    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
       return 4;

src/gallium/drivers/svga/svga_screen.c

@@ -409,6 +409,7 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_CULL_DISTANCE:
    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
    case PIPE_CAP_TGSI_VOTE:
+   case PIPE_CAP_MAX_WINDOW_RECTANGLES:
       return 0;
    }
 

src/gallium/drivers/swr/swr_screen.cpp

@@ -362,6 +362,7 @@ swr_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
    case PIPE_CAP_TGSI_VOTE:
+   case PIPE_CAP_MAX_WINDOW_RECTANGLES:
       return 0;
    }
 

src/gallium/drivers/vc4/vc4_screen.c

@@ -212,6 +212,7 @@ vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
         case PIPE_CAP_CULL_DISTANCE:
         case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
         case PIPE_CAP_TGSI_VOTE:
+        case PIPE_CAP_MAX_WINDOW_RECTANGLES:
                 return 0;
 
                 /* Stream output. */

src/gallium/drivers/virgl/virgl_screen.c

@@ -244,6 +244,7 @@ virgl_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_CULL_DISTANCE:
    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
    case PIPE_CAP_TGSI_VOTE:
+   case PIPE_CAP_MAX_WINDOW_RECTANGLES:
       return 0;
    case PIPE_CAP_VENDOR_ID:
       return 0x1af4;

src/gallium/include/pipe/p_defines.h

@@ -730,6 +730,7 @@ enum pipe_cap
    PIPE_CAP_CULL_DISTANCE,
    PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES,
    PIPE_CAP_TGSI_VOTE,
+   PIPE_CAP_MAX_WINDOW_RECTANGLES,
 };
 
 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)