glamor: Add render triangles support.

By default, fallback to frame buffer currently. This commit
makes us pass the rendercheck's triangles testing.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>

glamor/Makefile.am

@@ -30,6 +30,7 @@ libglamor_la_SOURCES = \
 	glamor_setspans.c \
 	glamor_render.c \
 	glamor_tile.c \
+        glamor_triangles.c\
 	glamor.h
 libglamor_la_LIBADD = \
 	glu3/libglu3.la

glamor/glamor.c

@@ -279,6 +279,8 @@ glamor_init(ScreenPtr screen, unsigned int flags)
     ps->Trapezoids = glamor_trapezoids;
     glamor_priv->saved_glyphs = ps->Glyphs;
     ps->Glyphs = glamor_glyphs;
+    glamor_priv->saved_triangles = ps->Triangles;
+    ps->Triangles = glamor_triangles;
     glamor_init_composite_shaders(screen);
 #endif
     glamor_init_solid_shader(screen);
@@ -317,6 +319,7 @@ glamor_close_screen(int idx, ScreenPtr screen)
 	ps->Composite = glamor_priv->saved_composite;
 	ps->Trapezoids = glamor_priv->saved_trapezoids;
 	ps->Glyphs = glamor_priv->saved_glyphs;
+        ps->Triangles = glamor_priv->saved_triangles;
     }
 #endif
     free(glamor_priv);

glamor/glamor_priv.h

@@ -148,6 +148,7 @@ typedef struct glamor_screen_private {
     ChangeWindowAttributesProcPtr saved_change_window_attributes;
     CopyWindowProcPtr saved_copy_window;
     BitmapToRegionProcPtr saved_bitmap_to_region;
+    TrianglesProcPtr saved_triangles;
 
     char *delayed_fallback_string;
     int yInverted;
@@ -232,8 +233,8 @@ glamor_fallback(char *format, ...)
     va_list ap;
 
     va_start(ap, format);
-    LogMessageVerb(X_INFO, 3, "fallback: ");
-    LogMessageVerb(X_NONE, 3, format, ap);
+    //LogMessageVerb(X_INFO, 3, "fallback: ");
+    //LogMessageVerb(X_NONE, 3, format, ap);
     va_end(ap);
 }
 
@@ -266,8 +267,8 @@ glamor_report_delayed_fallbacks(ScreenPtr screen)
     glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
 
     if (glamor_priv->delayed_fallback_string) {
-      	LogMessageVerb(X_INFO, 3, "fallback: %s",
-      	       glamor_priv->delayed_fallback_string);
+      	//LogMessageVerb(X_INFO, 3, "fallback: %s",
+      	//       glamor_priv->delayed_fallback_string);
 	glamor_clear_delayed_fallbacks(screen);
     }
 }
@@ -461,4 +462,15 @@ void glamor_tile(PixmapPtr pixmap, PixmapPtr tile,
 		 int tile_x, int tile_y);
 void glamor_init_tile_shader(ScreenPtr screen);
 
+/* glamor_triangles */
+void
+glamor_triangles (CARD8	    op,
+	     PicturePtr    pSrc,
+	     PicturePtr    pDst,
+	     PictFormatPtr maskFormat,
+	     INT16	    xSrc,
+	     INT16	    ySrc,
+	     int	    ntris,
+	     xTriangle    *tris);
+
 #endif /* GLAMOR_PRIV_H */

glamor/glamor_triangles.c

@@ -0,0 +1,61 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ * Copyright © 1998 Keith Packard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Zhigang Gong <zhigang.gong@gmail.com>
+ *
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "glamor_priv.h"
+
+void
+glamor_triangles (CARD8	    op,
+	     PicturePtr    pSrc,
+	     PicturePtr    pDst,
+	     PictFormatPtr maskFormat,
+	     INT16	    xSrc,
+	     INT16	    ySrc,
+	     int	    ntris,
+	     xTriangle    *tris)
+{ 
+
+    if (glamor_prepare_access(pDst->pDrawable, GLAMOR_ACCESS_RW)) {
+	if (pSrc->pDrawable == NULL ||
+	    glamor_prepare_access(pSrc->pDrawable, GLAMOR_ACCESS_RO))
+	{
+
+                fbTriangles(op, 
+                            pSrc, pDst, maskFormat, xSrc, ySrc, ntris, tris);
+	}
+	    if (pSrc->pDrawable != NULL)
+		glamor_finish_access(pSrc->pDrawable);
+
+	glamor_finish_access(pDst->pDrawable);
+	}
+}
+
+