buildroot/package/cairo/cairo-1.6.4-directfb-all.patch

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..99849ce
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,13 @@
+.deps
+.libs
+*.o
+*.la
+*.lo
+Makefile
+boot
+boot.log
+config.h
+config.log
+config.status
+libtool
+stamp-h1
diff --git a/src/.gitignore b/src/.gitignore
new file mode 100644
index 0000000..17146ae
--- /dev/null
+++ b/src/.gitignore
@@ -0,0 +1,11 @@
+cairo-directfb.pc
+cairo-features.h
+cairo-ft.pc
+cairo-no-features.h
+cairo-pdf.pc
+cairo-png.pc
+cairo-ps.pc
+cairo-svg.pc
+cairo-xlib-xrender.pc
+cairo-xlib.pc
+cairo.pc
diff --git a/src/cairo-directfb-surface.c b/src/cairo-directfb-surface.c
index f20bf2b..57e3980 100644
--- a/src/cairo-directfb-surface.c
+++ b/src/cairo-directfb-surface.c
@@ -34,7 +34,8 @@
  *    Michael Emmel <mike.emmel@gmail.com>
  *    Claudio Ciccani <klan@users.sf.net>
  */
- 
+
+//#define DIRECT_ENABLE_DEBUG
 
 #include "cairoint.h"
 #include "cairo-directfb.h"
@@ -42,6 +43,8 @@
 #include <stdlib.h>
 
 #include <directfb.h>
+#include <directfb_util.h>
+
 #include <direct/types.h>
 #include <direct/debug.h>
 #include <direct/memcpy.h>
@@ -63,7 +66,7 @@
 /*
  * CompositeTrapezoids works (without antialiasing).
  */
-#define DFB_COMPOSITE_TRAPEZOIDS 0
+#define DFB_COMPOSITE_TRAPEZOIDS 1
 
 /*
  * ShowGlyphs works fine.
@@ -71,7 +74,13 @@
 #define DFB_SHOW_GLYPHS 1
 
 
-D_DEBUG_DOMAIN (Cairo_DirectFB, "Cairo/DirectFB", "Cairo DirectFB backend");
+D_DEBUG_DOMAIN( CairoDFB_Acquire, "CairoDFB/Acquire", "Cairo DirectFB Acquire" );
+D_DEBUG_DOMAIN( CairoDFB_Clip,    "CairoDFB/Clip",    "Cairo DirectFB Clipping" );
+D_DEBUG_DOMAIN( CairoDFB_Font,    "CairoDFB/Font",    "Cairo DirectFB Font Rendering" );
+D_DEBUG_DOMAIN( CairoDFB_Glyphs,  "CairoDFB/Glyphs",  "Cairo DirectFB Font Rendering - Glyphs" );
+D_DEBUG_DOMAIN( CairoDFB_Render,  "CairoDFB/Render",  "Cairo DirectFB Rendering" );
+D_DEBUG_DOMAIN( CairoDFB_Surface, "CairoDFB/Surface", "Cairo DirectFB Surface" );
+D_DEBUG_DOMAIN( CairoDFB_SurfExt, "CairoDFB/SurfExt", "Cairo DirectFB Surface Extents" );
 
 /*****************************************************************************/
 
@@ -89,7 +98,7 @@ typedef struct _cairo_directfb_surface {
     cairo_surface_t     *color;
         
     DFBRegion           *clips;
-    int                  n_clips;
+    int                  n_clips;       // -1 = don't draw at all
     
     int                  width;
     int                  height;
@@ -122,7 +131,7 @@ static int _directfb_argb_font = 0;
 
 
 #define RUN_CLIPPED( surface, clip, func ) {\
-    if ((surface)->clips) {\
+    if ((surface)->n_clips) {\
         int k;\
         for (k = 0; k < (surface)->n_clips; k++) {\
             if (clip) {\
@@ -155,15 +164,15 @@ static int _directfb_argb_font = 0;
 }
 
 #define TRANSFORM_POINT2X( m, x, y, ret_x, ret_y ) {\
-    double _x = (x);\
-    double _y = (y);\
+    float _x = (x);\
+    float _y = (y);\
     (ret_x) = (_x * (m).xx + (m).x0);\
     (ret_y) = (_y * (m).yy + (m).y0);\
 }
 
 #define TRANSFORM_POINT3X( m, x, y, ret_x, ret_y ) {\
-    double _x = (x);\
-    double _y = (y);\
+    float _x = (x);\
+    float _y = (y);\
     (ret_x) = (_x * (m).xx + _y * (m).xy + (m).x0);\
     (ret_y) = (_x * (m).yx + _y * (m).yy + (m).y0);\
 }
@@ -291,6 +300,7 @@ _directfb_get_operator (cairo_operator_t         operator,
             dstblend = DSBF_ONE;
             break;
         default:
+            D_DEBUG_AT (CairoDFB_Render, "=> UNSUPPORTED OPERATOR %d\n", operator);
             return CAIRO_INT_STATUS_UNSUPPORTED;
     }
 
@@ -312,6 +322,8 @@ _directfb_buffer_surface_create (IDirectFB             *dfb,
     DFBSurfaceDescription  dsc;
     DFBResult              ret;
     
+    D_DEBUG_AT( CairoDFB_Surface, "%s( %4dx%4d %s )\n", __FUNCTION__, width, height, dfb_pixelformat_name(format) );
+
     dsc.flags       = DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT;
     dsc.width       = width;
     dsc.height      = height;
@@ -339,26 +351,24 @@ _directfb_acquire_surface (cairo_directfb_surface_t  *surface,
     cairo_format_t cairo_format;
     void *data;
     int   pitch; 
-        
+
     if (surface->format == (cairo_format_t) -1) {
-        DFBSurfaceCapabilities caps;
-        
         if (intrest_rec) {
             source_rect.x = intrest_rec->x;
             source_rect.y = intrest_rec->y;
             source_rect.w = intrest_rec->width; 
             source_rect.h = intrest_rec->height; 
         } else {
-            source_rect.x = 0;
-            source_rect.y = 0;
-            surface->dfbsurface->GetSize (surface->dfbsurface,
-                                          &source_rect.w, &source_rect.h);   
+            /* Use GetVisibleRectangle() here, because GetSize() might return huge values of a sub surface */
+            surface->dfbsurface->GetVisibleRectangle (surface->dfbsurface, &source_rect);
         }
 
         if (surface->tmpsurface) {
             int w, h;
             surface->tmpsurface->GetSize (surface->tmpsurface, &w, &h);
-            if (w < source_rect.w || h < source_rect.h) {
+            if (w < source_rect.w || h < source_rect.h ||
+                ((w*4 > source_rect.w*5 || h*4 > source_rect.h*5) && (w > 32 || h > 32)))
+            {
                 surface->tmpsurface->Release (surface->tmpsurface);
                 surface->tmpsurface = NULL;
             }
@@ -366,7 +376,7 @@ _directfb_acquire_surface (cairo_directfb_surface_t  *surface,
         
         cairo_format = _cairo_format_from_content (surface->content);
         if (!surface->tmpsurface) {
-            D_DEBUG_AT (Cairo_DirectFB, "Allocating buffer for surface %p.\n", surface);
+            D_DEBUG_AT (CairoDFB_Acquire, "  -> Allocating %dx%d buffer\n", source_rect.w, source_rect.h);
        
             surface->tmpsurface = 
                 _directfb_buffer_surface_create (surface->dfb, 
@@ -377,14 +387,12 @@ _directfb_acquire_surface (cairo_directfb_surface_t  *surface,
         }
         buffer = surface->tmpsurface;
         
-        surface->dfbsurface->GetCapabilities (surface->dfbsurface, &caps);
-        if (caps & DSCAPS_FLIPPING) {
-            DFBRegion region = { .x1 = source_rect.x, .y1 = source_rect.y, 
-                                 .x2 = source_rect.x + source_rect.w - 1,
-                                 .y2 = source_rect.y + source_rect.h - 1 };
-            surface->dfbsurface->Flip (surface->dfbsurface, &region, DSFLIP_BLIT);
-        } 
+        D_DEBUG_AT( CairoDFB_Render, "  => Blit( 0,0-%4dx%4d <- %4d,%4d )\n",
+                    source_rect.w, source_rect.h, source_rect.x, source_rect.y );
+
+        buffer->SetBlittingFlags (buffer, DSBLIT_NOFX);
         buffer->Blit (buffer, surface->dfbsurface, &source_rect, 0, 0);
+        buffer->ReleaseSource (buffer);
     }
     else {
         /*might be a subsurface get the offset*/
@@ -396,7 +404,7 @@ _directfb_acquire_surface (cairo_directfb_surface_t  *surface,
     *image_extra = buffer;
     
     if (buffer->Lock (buffer, lock_flags, &data, &pitch)) {
-        D_DEBUG_AT (Cairo_DirectFB, "Couldn't lock surface!\n");
+        D_DEBUG_AT (CairoDFB_Acquire, "Couldn't lock surface!\n");
         goto ERROR;
     }
             
@@ -443,9 +451,9 @@ _cairo_directfb_surface_create_similar (void            *abstract_src,
     cairo_directfb_surface_t *surface;
     cairo_format_t            format;
     
-    D_DEBUG_AT (Cairo_DirectFB, 
-                "%s( src=%p, content=0x%x, width=%d, height=%d).\n",
-                __FUNCTION__, source, content, width, height);
+    D_DEBUG_AT (CairoDFB_Surface, "%s( src=%p, content=%s%s, width=%d, height=%d)\n", __FUNCTION__, source,
+                (content & CAIRO_CONTENT_COLOR) ? "COLOR"  : "",
+                (content & CAIRO_CONTENT_ALPHA) ? "+ALPHA" : "", width, height);
     
     width = (width <= 0) ? 1 : width;
     height = (height<= 0) ? 1 : height;
@@ -497,8 +505,7 @@ _cairo_directfb_surface_finish (void *data)
 {
     cairo_directfb_surface_t *surface = (cairo_directfb_surface_t *)data;
     
-    D_DEBUG_AT (Cairo_DirectFB, 
-                "%s( surface=%p ).\n", __FUNCTION__, surface);
+    D_DEBUG_AT (CairoDFB_Surface, "%s( surface=%p ).\n", __FUNCTION__, surface);
         
     if (surface->clips) {
         free (surface->clips);
@@ -534,8 +541,8 @@ _cairo_directfb_surface_acquire_source_image (void                   *abstract_s
 {
     cairo_directfb_surface_t *surface = abstract_surface;
     
-    D_DEBUG_AT (Cairo_DirectFB, 
-                "%s( surface=%p ).\n", __FUNCTION__, surface);
+    D_DEBUG_AT( CairoDFB_Acquire, "%s( %p - %dx%d 0x%x )\n", __FUNCTION__,
+                surface, surface->width, surface->height, surface->format );
     
     return _directfb_acquire_surface (surface, NULL, image_out, 
                                       NULL, image_extra, DSLF_READ);
@@ -549,8 +556,7 @@ _cairo_directfb_surface_release_source_image (void                  *abstract_su
     cairo_directfb_surface_t *surface = abstract_surface;
     IDirectFBSurface *buffer = image_extra;
     
-    D_DEBUG_AT (Cairo_DirectFB, 
-                "%s( surface=%p ).\n", __FUNCTION__, surface);
+    D_DEBUG_AT (CairoDFB_Acquire, "%s( %p )\n", __FUNCTION__, surface);
     
     buffer->Unlock (buffer);
     
@@ -564,18 +570,58 @@ _cairo_directfb_surface_acquire_dest_image (void                     *abstract_s
                                             cairo_rectangle_int_t    *image_rect_out,
                                             void                    **image_extra)
 {
+    cairo_status_t            status;
     cairo_directfb_surface_t *surface = abstract_surface;
     
-    D_DEBUG_AT (Cairo_DirectFB, 
-                "%s( surface=%p, interest_rect={ %d %d %d %d } ).\n", 
-                __FUNCTION__, surface, 
+    D_DEBUG_AT (CairoDFB_Acquire, 
+                "%s( %p - %dx%d 0x%x { %u %u %u %u } )\n", 
+                __FUNCTION__, surface, surface->width, surface->height, surface->format,
                 interest_rect ? interest_rect->x : 0,
                 interest_rect ? interest_rect->y : 0,
-                interest_rect ? interest_rect->width : surface->width,
-                interest_rect ? interest_rect->height : surface->height);
+                interest_rect ? interest_rect->width  : (unsigned) surface->width,
+                interest_rect ? interest_rect->height : (unsigned) surface->height);
     
-    return _directfb_acquire_surface (surface, interest_rect, image_out, 
-                                      image_rect_out, image_extra, DSLF_READ | DSLF_WRITE);
+    status = _directfb_acquire_surface (surface, interest_rect, image_out, 
+                                        image_rect_out, image_extra, DSLF_READ | DSLF_WRITE);
+    if (status)
+        return status;
+
+    /* Ensure that the new image has the same clip, if it's the same buffer */
+    if ((IDirectFBSurface*) *image_extra == surface->dfbsurface &&
+        surface->clips)
+    {
+        cairo_surface_t *s = (cairo_surface_t*) *image_out;
+
+        unsigned int clip_serial = _cairo_surface_allocate_clip_serial (s);
+
+        cairo_region_t clip_region;
+
+        if (surface->n_clips == 1) {
+            cairo_rectangle_int_t rect = { surface->clips[0].x1, surface->clips[0].y1,
+                                           surface->clips[0].x2 - surface->clips[0].x1 + 1,
+                                           surface->clips[0].y2 - surface->clips[0].y1 + 1 };
+            _cairo_region_init_rect (&clip_region, &rect);
+        } else {
+            cairo_box_int_t *boxes = _cairo_malloc_ab (surface->n_clips, sizeof(cairo_box_int_t));
+            int k;
+
+            for (k = 0; k < surface->n_clips; k++) {
+                boxes[k].p1.x = surface->clips[k].x1;
+                boxes[k].p1.y = surface->clips[k].y1;
+                boxes[k].p2.x = surface->clips[k].x2 + 1;
+                boxes[k].p2.y = surface->clips[k].y2 + 1;
+            }
+
+            _cairo_region_init_boxes (&clip_region, boxes, surface->n_clips);
+            free (boxes);
+        }
+
+        _cairo_surface_set_clip_region (s, &clip_region, clip_serial);
+
+        _cairo_region_fini (&clip_region);
+    }
+
+    return CAIRO_STATUS_SUCCESS;
 }
 
 static void
@@ -586,21 +632,31 @@ _cairo_directfb_surface_release_dest_image (void                  *abstract_surf
                                             void                  *image_extra)
 {
     cairo_directfb_surface_t *surface = abstract_surface;
-    IDirectFBSurface *buffer = image_extra; 
+    IDirectFBSurface         *buffer  = image_extra;
     
-    D_DEBUG_AT (Cairo_DirectFB, 
-                "%s( surface=%p ).\n", __FUNCTION__, surface);
+    D_DEBUG_AT (CairoDFB_Acquire, 
+                "%s( %p - %dx%d 0x%x { %u %u %u %u } )\n", 
+                __FUNCTION__, surface, surface->width, surface->height, surface->format,
+                interest_rect ? interest_rect->x : 0,
+                interest_rect ? interest_rect->y : 0,
+                interest_rect ? interest_rect->width  : (unsigned) surface->width,
+                interest_rect ? interest_rect->height : (unsigned) surface->height);
     
     buffer->Unlock (buffer);
 
     if (surface->dfbsurface != buffer) {
-        DFBRegion region = { .x1 = interest_rect->x, .y1 = interest_rect->y,
-                             .x2 = interest_rect->x+interest_rect->width-1,
-                             .y2 = interest_rect->y+interest_rect->height-1 };
-        surface->dfbsurface->SetClip (surface->dfbsurface, &region);
+        DFBRectangle sr = { 0, 0, image_rect->width, image_rect->height };
+
+        D_DEBUG_AT( CairoDFB_Render, "  => Blit( %4d,%4d-%4dx%4d <- 0,0 )\n",
+                    image_rect->x, image_rect->y, sr.w, sr.h );
+
         surface->dfbsurface->SetBlittingFlags (surface->dfbsurface, DSBLIT_NOFX);
-        surface->dfbsurface->Blit (surface->dfbsurface, buffer,
-                                   NULL, image_rect->x, image_rect->y);
+
+        RUN_CLIPPED( surface, NULL,
+                     surface->dfbsurface->Blit (surface->dfbsurface,
+                                                buffer, &sr, image_rect->x, image_rect->y));
+
+        surface->dfbsurface->ReleaseSource (surface->dfbsurface);
     }
     
     cairo_surface_destroy (&image->base);
@@ -618,13 +674,15 @@ _cairo_directfb_surface_clone_similar (void             *abstract_surface,
     cairo_directfb_surface_t *surface = abstract_surface;
     cairo_directfb_surface_t *clone;
     
-    D_DEBUG_AT (Cairo_DirectFB, 
-                "%s( surface=%p, src=%p ).\n", __FUNCTION__, surface, src);
+    D_DEBUG_AT (CairoDFB_Surface, "%s( surface=%p, src=%p [%d,%d-%dx%d] )\n",
+                __FUNCTION__, surface, src, src_x, src_y, width, height);
 
     if (src->backend == surface->base.backend) {
         cairo_surface_reference (src);
         *clone_out = src;
          
+        D_DEBUG_AT (CairoDFB_Surface, "  -> lightweight - referenced :)\n");
+
         return CAIRO_STATUS_SUCCESS;
     }
     else if (_cairo_surface_is_image (src)) {
@@ -640,7 +698,8 @@ _cairo_directfb_surface_clone_similar (void             *abstract_surface,
                             image_src->width, image_src->height);
         if (!clone)
             return _cairo_error (CAIRO_STATUS_NO_MEMORY);
-            
+
+
         ret = clone->dfbsurface->Lock (clone->dfbsurface, 
                                    DSLF_WRITE, (void *)&dst, &pitch);
         if (ret) {
@@ -653,6 +712,8 @@ _cairo_directfb_surface_clone_similar (void             *abstract_surface,
         src += image_src->stride * src_y;
         
         if (image_src->format == CAIRO_FORMAT_A1) {
+            D_DEBUG_AT (CairoDFB_Surface, "  ==> converting A1 -> A8 data\n");
+
             /* A1 -> A8 */
             for (i = 0; i < height; i++) {
                 for (j = src_x; j < src_x + width; j++)
@@ -665,10 +726,14 @@ _cairo_directfb_surface_clone_similar (void             *abstract_surface,
             int len;
             
             if (image_src->format == CAIRO_FORMAT_A8) {
+                D_DEBUG_AT (CairoDFB_Surface, "  ==> copying A8 data\n");
+
                 dst += src_x;
                 src += src_x;
                 len  = width;
             } else {
+                D_DEBUG_AT (CairoDFB_Surface, "  ==> copying ARGB data\n");
+
                 dst += src_x * 4;
                 src += src_x * 4;
                 len  = width * 4;
@@ -722,11 +787,17 @@ _directfb_prepare_composite (cairo_directfb_surface_t    *dst,
             cairo_pattern_t *tmp;
             int              tmp_x, tmp_y;
             
-            if (src_pattern->type != CAIRO_PATTERN_TYPE_SOLID ||
-                sblend == DSBF_INVDESTALPHA) /* Doesn't work correctly */
+            if (src_pattern->type != CAIRO_PATTERN_TYPE_SOLID) { /* Doesn't work correctly */
+                D_DEBUG_AT (CairoDFB_Render, "=> PATTERN TYPE %d WITH MASK NOT SUPPORTED\n", src_pattern->type);
                 return CAIRO_INT_STATUS_UNSUPPORTED;
+            }
                 
-            D_DEBUG_AT (Cairo_DirectFB, "Replacing src pattern by mask pattern.\n");
+            if (sblend == DSBF_INVDESTALPHA) { /* Doesn't work correctly */
+                D_DEBUG_AT (CairoDFB_Render, "=> SOURCE BLEND %d WITH MASK NOT SUPPORTED\n", sblend);
+                return CAIRO_INT_STATUS_UNSUPPORTED;
+            }
+
+            D_DEBUG_AT (CairoDFB_Render, "-> Replacing src pattern by mask pattern.\n");
                 
             tmp = src_pattern;
             tmp_x = *src_x; tmp_y = *src_y;
@@ -748,6 +819,10 @@ _directfb_prepare_composite (cairo_directfb_surface_t    *dst,
         color.r = pattern->color.red_short   >> 8;
         color.g = pattern->color.green_short >> 8;
         color.b = pattern->color.blue_short  >> 8;
+
+        D_DEBUG_AT (CairoDFB_Render, "-> SOLID MASK (%02x %02x %02x %02x)\n",
+                    pattern->color.alpha_short >> 8, pattern->color.red_short >> 8,
+                    pattern->color.green_short >> 8, pattern->color.blue_short >> 8 );
     } 
     else {
         color.a = color.r = color.g = color.b = 0xff;
@@ -756,6 +831,10 @@ _directfb_prepare_composite (cairo_directfb_surface_t    *dst,
     if (src_pattern->type == CAIRO_PATTERN_TYPE_SOLID) {
         cairo_solid_pattern_t *pattern = (cairo_solid_pattern_t *)src_pattern;
          
+        D_DEBUG_AT (CairoDFB_Render, "-> SOLID PATTERN (%02x %02x %02x %02x)\n",
+                    pattern->color.alpha_short >> 8, pattern->color.red_short >> 8,
+                    pattern->color.green_short >> 8, pattern->color.blue_short >> 8 );
+
         if (!dst->color) {
             dst->color = _cairo_directfb_surface_create_similar (dst,
                                                 CAIRO_CONTENT_COLOR_ALPHA, 1, 1);
@@ -777,6 +856,8 @@ _directfb_prepare_composite (cairo_directfb_surface_t    *dst,
         src_attr.y_offset = 0;
     }
     else {
+        D_DEBUG_AT (CairoDFB_Render, "-> PATTERN TYPE %d\n", src_pattern->type );
+
         ret = _cairo_pattern_acquire_surface (src_pattern, &dst->base,
                                               *src_x, *src_y, width, height,
                                               (cairo_surface_t **)&src, &src_attr);
@@ -838,6 +919,9 @@ _directfb_finish_composite (cairo_directfb_surface_t   *dst,
 {
     if (src != dst->color)
          _cairo_pattern_release_surface (src_pattern, src, src_attr);
+
+    if (dst->dfbsurface)
+         dst->dfbsurface->ReleaseSource( dst->dfbsurface );
 }
 #endif /* DFB_COMPOSITE || DFB_COMPOSITE_TRAPEZOIDS */        
 
@@ -848,20 +932,38 @@ _directfb_categorize_operation (cairo_surface_attributes_t *src_attr)
     cairo_matrix_t *m = &src_attr->matrix;
     
     if (m->xy != 0 || m->yx != 0 || m->xx < 0 || m->yy < 0) {
-        if (src_attr->extend != CAIRO_EXTEND_NONE)
-            return DFXL_NONE;
+        D_DEBUG_AT (CairoDFB_Render, "-> NON-RECTANGULAR TRANSFORM\n" );
+
+        if (src_attr->extend != CAIRO_EXTEND_NONE) {
+             D_DEBUG_AT (CairoDFB_Render, "=> EXTEND MODE %d NOT SUPPORTED\n", src_attr->extend );
+             return DFXL_NONE;
+        }
+
         return DFXL_TEXTRIANGLES;
     }
         
     if (m->xx != 1 || m->yy != 1) {
-        if (src_attr->extend != CAIRO_EXTEND_NONE)
-            return DFXL_NONE;
+        D_DEBUG_AT (CairoDFB_Render, "-> RECTANGULAR TRANSFORM\n" );
+
+        if (src_attr->extend != CAIRO_EXTEND_NONE) {
+             D_DEBUG_AT (CairoDFB_Render, "=> EXTEND MODE %d NOT SUPPORTED\n", src_attr->extend );
+
+             /* TODO: support EXTEND_PAD in special cases */
+
+             return DFXL_NONE;
+        }
+
         return DFXL_STRETCHBLIT;
     }
      
+    D_DEBUG_AT (CairoDFB_Render, "-> NO TRANSFORM\n" );
+
     if (src_attr->extend != CAIRO_EXTEND_NONE &&
         src_attr->extend != CAIRO_EXTEND_REPEAT)
+    {
+        D_DEBUG_AT (CairoDFB_Render, "=> EXTEND MODE %d NOT SUPPORTED\n", src_attr->extend );
         return DFXL_NONE;
+    }
            
     return DFXL_BLIT;
 }
@@ -880,13 +982,13 @@ _cairo_directfb_surface_composite (cairo_operator_t  op,
     cairo_directfb_surface_t   *dst = abstract_dst;
     cairo_directfb_surface_t   *src;
     cairo_surface_attributes_t  src_attr;
-    DFBAccelerationMask         accel, mask;
+    DFBAccelerationMask         accel;
     cairo_int_status_t          ret;
     
-    D_DEBUG_AT (Cairo_DirectFB,
-                "%s( op=%d, src_pattern=%p, mask_pattern=%p, dst=%p,"
+    D_DEBUG_AT (CairoDFB_Render,
+                "%s( op=%d, src=%p, mask=%p, dst=%p,"
                    " src_x=%d, src_y=%d, mask_x=%d, mask_y=%d, dst_x=%d,"
-                   " dst_y=%d, width=%u, height=%u ).\n",
+                   " dst_y=%d, width=%u, height=%u )\n",
                 __FUNCTION__, op, src_pattern, mask_pattern, dst, 
                 src_x, src_y, mask_x, mask_y, dst_x, dst_y, width, height);
     
@@ -895,16 +997,12 @@ _cairo_directfb_surface_composite (cairo_operator_t  op,
                                        width, height, &src, &src_attr);
     if (ret)
         return ret;
-        
+
     accel = _directfb_categorize_operation (&src_attr);
-    
-    dst->dfbsurface->GetAccelerationMask (dst->dfbsurface, src->dfbsurface, &mask);
-    if (!(mask & accel)) {
-        D_DEBUG_AT (Cairo_DirectFB, "No acceleration (%08x)!\n", accel);
-        if (accel != DFXL_BLIT) {
-            _directfb_finish_composite (dst, src_pattern, &src->base, &src_attr);
-            return CAIRO_INT_STATUS_UNSUPPORTED;
-        }
+    if (!accel) {
+        D_DEBUG_AT (CairoDFB_Render, "  ====>> UNSUPPORTED!!!\n");
+        _directfb_finish_composite (dst, src_pattern, &src->base, &src_attr);
+        return CAIRO_INT_STATUS_UNSUPPORTED;
     }
     
     src_x += src_attr.x_offset;
@@ -920,7 +1018,8 @@ _cairo_directfb_surface_composite (cairo_operator_t  op,
             sr.h = height;
         
             if (src_attr.extend == CAIRO_EXTEND_NONE) {
-                D_DEBUG_AT (Cairo_DirectFB, "Running Blit().\n");
+                D_DEBUG_AT( CairoDFB_Render, "  ==> Blit( %4d,%4d-%4dx%4d <- %4d,%4d )\n",
+                            dst_x, dst_y, sr.w, sr.h, sr.x, sr.y );
         
                 RUN_CLIPPED( dst, NULL,
                              dst->dfbsurface->Blit (dst->dfbsurface,
@@ -934,7 +1033,8 @@ _cairo_directfb_surface_composite (cairo_operator_t  op,
                 clip.x2 = dst_x + width  - 1;
                 clip.y2 = dst_y + height - 1;
             
-                D_DEBUG_AT (Cairo_DirectFB, "Running TileBlit().\n");
+                D_DEBUG_AT( CairoDFB_Render, "  ==> TileBlit( %4d,%4d-%4dx%4d <- %4d,%4d-%4dx%4d )\n",
+                            dst_x, dst_y, width, height, sr.x, sr.y, sr.w, sr.h );
             
                 RUN_CLIPPED( dst, &clip,
                              dst->dfbsurface->TileBlit (dst->dfbsurface, 
@@ -944,7 +1044,7 @@ _cairo_directfb_surface_composite (cairo_operator_t  op,
         
         case DFXL_STRETCHBLIT: {
             DFBRectangle sr, dr;
-            double       x1, y1, x2, y2;
+            float        x1, y1, x2, y2;
             
             TRANSFORM_POINT2X (src_attr.matrix, 
                                src_x, src_y, x1, y1);
@@ -961,7 +1061,8 @@ _cairo_directfb_surface_composite (cairo_operator_t  op,
             dr.w = width;
             dr.h = height;
             
-            D_DEBUG_AT (Cairo_DirectFB, "Running StretchBlit().\n");
+            D_DEBUG_AT( CairoDFB_Render, "  ==> StretchBlit( %4d,%4d-%4dx%4d <- %4d,%4d-%4dx%4d )\n",
+                        dst_x, dst_y, width, height, sr.x, sr.y, sr.w, sr.h );
 
             RUN_CLIPPED (dst, NULL,
                          dst->dfbsurface->StretchBlit (dst->dfbsurface, 
@@ -1019,7 +1120,7 @@ _cairo_directfb_surface_composite (cairo_operator_t  op,
             clip.x2 = dst_x + width  - 1;
             clip.y2 = dst_y + height - 1;
         
-            D_DEBUG_AT (Cairo_DirectFB, "Running TextureTriangles().\n");
+            D_DEBUG_AT (CairoDFB_Render, "  ==> TextureTriangles( ... )\n");
             
             RUN_CLIPPED (dst, &clip,
                          dst->dfbsurface->TextureTriangles (dst->dfbsurface, 
@@ -1052,8 +1153,7 @@ _cairo_directfb_surface_fill_rectangles (void                  *abstract_surface
     DFBRectangle              r[n_rects];
     int                       i;
     
-    D_DEBUG_AT (Cairo_DirectFB, 
-                "%s( dst=%p, op=%d, color=%p, rects=%p, n_rects=%d ).\n",
+    D_DEBUG_AT (CairoDFB_Render, "%s( dst=%p, op=%d, color=%p, rects=%p, n_rects=%d )\n",
                 __FUNCTION__, dst, op, color, rects, n_rects);
 
     if (_directfb_get_operator (op, &sblend, &dblend))
@@ -1094,14 +1194,19 @@ _cairo_directfb_surface_fill_rectangles (void                  *abstract_surface
                                color->green_short >> 8, 
                                color->blue_short  >> 8, 
                                color->alpha_short >> 8 );
+
+    D_DEBUG_AT( CairoDFB_Render, "  -> %02x %02x %02x %02x\n", color->alpha_short >> 8,
+                color->red_short >> 8, color->green_short >> 8, color->blue_short >> 8 );
        
     for (i = 0; i < n_rects; i++) {
         r[i].x = rects[i].x;
         r[i].y = rects[i].y;
         r[i].w = rects[i].width;
         r[i].h = rects[i].height;
+
+        D_DEBUG_AT( CairoDFB_Render, "  ==> Fill %4d,%4d-%4dx%4d [%d]\n", DFB_RECTANGLE_VALS(&r[i]), i );
     }
-     
+
     RUN_CLIPPED (dst, NULL,
                  dst->dfbsurface->FillRectangles (dst->dfbsurface, r, n_rects));
     
@@ -1128,7 +1233,7 @@ _cairo_directfb_surface_composite_trapezoids (cairo_operator_t   op,
     cairo_status_t              ret;
     DFBAccelerationMask         accel;
     
-    D_DEBUG_AT (Cairo_DirectFB,
+    D_DEBUG_AT (CairoDFB_Render,
                 "%s( op=%d, pattern=%p, dst=%p, antialias=%d,"
                    " src_x=%d, src_y=%d, dst_x=%d, dst_y=%d,"
                    " width=%u, height=%u, traps=%p, num_traps=%d ).\n",
@@ -1235,7 +1340,7 @@ _cairo_directfb_surface_composite_trapezoids (cairo_operator_t   op,
         
 #undef ADD_TRI
               
-        D_DEBUG_AT (Cairo_DirectFB, "Running TextureTriangles().\n");
+        D_DEBUG_AT (CairoDFB_Render, "Running TextureTriangles().\n");
             
         RUN_CLIPPED (dst, NULL,
                      dst->dfbsurface->TextureTriangles (dst->dfbsurface, src->dfbsurface, 
@@ -1256,9 +1361,7 @@ _cairo_directfb_surface_set_clip_region (void           *abstract_surface,
 {
     cairo_directfb_surface_t *surface = abstract_surface;
     
-    D_DEBUG_AT (Cairo_DirectFB, 
-                "%s( surface=%p, region=%p ).\n",
-                __FUNCTION__, surface, region);
+    D_DEBUG_AT (CairoDFB_Clip, "%s( surface=%p, region=%p )\n", __FUNCTION__, surface, region);
     
     if (region) {
         cairo_box_int_t *boxes;
@@ -1267,15 +1370,33 @@ _cairo_directfb_surface_set_clip_region (void           *abstract_surface,
         int              i;
 
         status = _cairo_region_get_boxes (region, &n_boxes, &boxes);
-        if (status)
-            return status;
+        if (status) {
+             D_DEBUG_AT( CairoDFB_Clip, "  -> status %d!\n", status );
+             return status;
+        }
+
+        if (n_boxes == 0) {
+             D_DEBUG_AT( CairoDFB_Clip, "  -> EMPTY region (fully clipped)\n" );
+
+             if (surface->clips) {
+                 free (surface->clips);
+                 surface->clips = NULL;
+             }
+
+             surface->n_clips = -1;
+
+             return CAIRO_STATUS_SUCCESS;
+        }
+
+        D_DEBUG_AT( CairoDFB_Clip, "  -> %d box%s\n", n_boxes, (n_boxes > 1) ? "es" : "" );
         
-        if (surface->n_clips != n_boxes) {
+        if (surface->n_clips < n_boxes || surface->n_clips - n_boxes > 10) {
             if (surface->clips)
                 free (surface->clips);
             
             surface->clips = _cairo_malloc_ab (n_boxes, sizeof(DFBRegion));
             if (!surface->clips) {
+                D_OOM();
                 surface->n_clips = 0;
                 _cairo_region_boxes_fini (region, boxes);
                 return _cairo_error (CAIRO_STATUS_NO_MEMORY);
@@ -1287,18 +1408,24 @@ _cairo_directfb_surface_set_clip_region (void           *abstract_surface,
         for (i = 0; i < n_boxes; i++) {
             surface->clips[i].x1 = boxes[i].p1.x;
             surface->clips[i].y1 = boxes[i].p1.y;
-            surface->clips[i].x2 = boxes[i].p2.x;
-            surface->clips[i].y2 = boxes[i].p2.y;
+            surface->clips[i].x2 = boxes[i].p2.x - 1;
+            surface->clips[i].y2 = boxes[i].p2.y - 1;
+
+            D_DEBUG_AT( CairoDFB_Clip, "  = CLIP %4d,%4d-%4dx%4d [%d]\n",
+                        DFB_RECTANGLE_VALS_FROM_REGION(&surface->clips[i]), i );
         }
 
         _cairo_region_boxes_fini (region, boxes);
     }
     else {
+        D_DEBUG_AT( CairoDFB_Clip, "  -> NULL region (unclipped)\n" );
+
         if (surface->clips) {
             free (surface->clips);
             surface->clips = NULL;
-            surface->n_clips = 0;
         }
+
+        surface->n_clips = 0;
     }
 
     return CAIRO_STATUS_SUCCESS;
@@ -1310,9 +1437,7 @@ _cairo_directfb_abstract_surface_get_extents (void                  *abstract_su
 {
     cairo_directfb_surface_t *surface = abstract_surface;
     
-    D_DEBUG_AT (Cairo_DirectFB,
-                "%s( surface=%p, rectangle=%p ).\n",
-                __FUNCTION__, surface, rectangle);
+    D_DEBUG_AT (CairoDFB_SurfExt, "%s( surface=%p, rectangle=%p )\n", __FUNCTION__, surface, rectangle);
     
     if (rectangle) {
         if (!surface->local) {
@@ -1323,6 +1448,8 @@ _cairo_directfb_abstract_surface_get_extents (void                  *abstract_su
         rectangle->y = 0;
         rectangle->width  = surface->width;
         rectangle->height = surface->height;
+
+        D_DEBUG_AT (CairoDFB_SurfExt, "  -> %dx%d\n", surface->width, surface->height);
     }
     
     return CAIRO_STATUS_SUCCESS;
@@ -1379,21 +1506,29 @@ _directfb_acquire_font_cache (cairo_directfb_surface_t     *surface,
     int                          h         = 8;
     int                          i;
     
+    D_DEBUG_AT (CairoDFB_Font, "%s( %p [%d] )\n", __FUNCTION__, glyphs, num_glyphs );
+
     if (scaled_font->surface_private) {
         cache = scaled_font->surface_private;
         x = cache->x;
         y = cache->y;
     }
-    
+
+    _cairo_cache_freeze( scaled_font->glyphs );
+
     for (i = 0; i < num_glyphs; i++) {
         cairo_scaled_glyph_t  *scaled_glyph;
         cairo_image_surface_t *img;
         
+        D_DEBUG_AT (CairoDFB_Glyphs, "  -> [%2d] = %4lu\n", i, glyphs[i].index );
+
         ret = _cairo_scaled_glyph_lookup (scaled_font, glyphs[i].index,
                                           CAIRO_SCALED_GLYPH_INFO_SURFACE,
                                           &scaled_glyph);
-        if (ret)
+        if (ret) {
+            _cairo_cache_thaw( scaled_font->glyphs );
             return ret;
+        }
         
         img = scaled_glyph->surface;
         switch (img->format) {
@@ -1402,19 +1537,26 @@ _directfb_acquire_font_cache (cairo_directfb_surface_t     *surface,
             case CAIRO_FORMAT_ARGB32:
                 break;
             default:
-                D_DEBUG_AT (Cairo_DirectFB,
-                            "Unsupported font format %d!\n", img->format);
+                D_DEBUG_AT (CairoDFB_Glyphs,
+                            "  -> Unsupported font format %d!\n", img->format);
+                _cairo_cache_thaw( scaled_font->glyphs );
                 return CAIRO_INT_STATUS_UNSUPPORTED;
         }
         
         points[n].x = _cairo_lround (glyphs[i].x - img->base.device_transform.x0);
         points[n].y = _cairo_lround (glyphs[i].y - img->base.device_transform.y0);
         
+//        D_DEBUG_AT (CairoDFB_Glyphs, "            (%4d,%4d) [%2d]\n", points[n].x, points[n].y, n );
+
         if (points[n].x >= surface->width  ||
             points[n].y >= surface->height ||
             points[n].x+img->width  <= 0   ||
             points[n].y+img->height <= 0)
-            continue;
+        {
+             D_DEBUG_AT (CairoDFB_Glyphs,
+                         "  -> Unsupported font format %d!\n", img->format);
+             continue;
+        }
         
         if (!scaled_glyph->surface_private) {
             DFBRectangle *rect;
@@ -1436,30 +1578,31 @@ _directfb_acquire_font_cache (cairo_directfb_surface_t     *surface,
             
             /* Remember glyph location */ 
             rect = malloc (sizeof(DFBRectangle));
-            if (!rect)
+            if (!rect) {
+                _cairo_cache_thaw( scaled_font->glyphs );
                 return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+            }
             *rect = rects[n];
             
             scaled_glyph->surface_private = rect;
             chars[num_chars++] = scaled_glyph;
             
-            /*D_DEBUG_AT (Cairo_DirectFB, 
-                        "Glyph %lu will be loaded at (%d,%d).\n",
-                        glyphs[i].index, rects[n].x, rects[n].y);*/
+            D_DEBUG_AT (CairoDFB_Glyphs, "  -> loading at %4d,%2d <- rect %p, img %p, entry %p\n",
+                        rects[n].x, rects[n].y, rect, scaled_glyph->surface, scaled_glyph);
         }
         else {
             rects[n] = *((DFBRectangle *)scaled_glyph->surface_private);
             
-            /*D_DEBUG_AT (Cairo_DirectFB, 
-                        "Glyph %lu already loaded at (%d,%d).\n",
-                        glyphs[i].index, rects[n].x, rects[n].y);*/
+            D_DEBUG_AT (CairoDFB_Glyphs, "  -> exists at  %4d,%2d\n", rects[n].x, rects[n].y);
         }
             
         n++;
     }
     
-    if (!n)
+    if (!n) {
+        _cairo_cache_thaw( scaled_font->glyphs );
         return CAIRO_INT_STATUS_NOTHING_TO_DO;
+    }
     
     h += y;
     w = MAX (w, 8);
@@ -1472,27 +1615,30 @@ _directfb_acquire_font_cache (cairo_directfb_surface_t     *surface,
             w = MAX (w, cache->width);
             h = MAX (h, cache->height);
             
-            D_DEBUG_AT (Cairo_DirectFB,
-                        "Reallocating font cache (%dx%d).\n", w, h);
+            D_DEBUG_AT (CairoDFB_Font, "  -> Reallocating font cache (%dx%d).\n", w, h);
             
             new_cache = _directfb_allocate_font_cache (surface->dfb, w, h);
-            if (!new_cache)
+            if (!new_cache) {
+                _cairo_cache_thaw( scaled_font->glyphs );
                 return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+            }
             
             new_cache->dfbsurface->Blit (new_cache->dfbsurface,
                                          cache->dfbsurface, NULL, 0, 0);
+            new_cache->dfbsurface->ReleaseSource (new_cache->dfbsurface);
             
             _directfb_destroy_font_cache (cache);
             scaled_font->surface_private = cache = new_cache;
         }
     }
     else {
-        D_DEBUG_AT (Cairo_DirectFB,
-                    "Allocating font cache (%dx%d).\n", w, h);
+        D_DEBUG_AT (CairoDFB_Font, "  -> Allocating font cache (%dx%d).\n", w, h);
         
         cache = _directfb_allocate_font_cache (surface->dfb, w, h);
-        if (!cache)
+        if (!cache) {
+            _cairo_cache_thaw( scaled_font->glyphs );
             return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+        }
             
         scaled_font->surface_backend = &cairo_directfb_surface_backend;
         scaled_font->surface_private = cache;
@@ -1504,17 +1650,30 @@ _directfb_acquire_font_cache (cairo_directfb_surface_t     *surface,
     
         if (cache->dfbsurface->Lock (cache->dfbsurface, 
                                      DSLF_WRITE, (void *)&data, &pitch))
+        {
+            _cairo_cache_thaw( scaled_font->glyphs );
             return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+        }
             
+        D_DEBUG_AT (CairoDFB_Font, "  => %d chars to load, cache %dx%d\n", num_chars, cache->width, cache->height);
+
         for (i = 0; i < num_chars; i++) {
             cairo_image_surface_t *img  = chars[i]->surface;
             DFBRectangle          *rect = chars[i]->surface_private;
             unsigned char         *dst  = data;
-            unsigned char         *src  = img->data;
+            unsigned char         *src;
             int                    j;
             
+            D_DEBUG_AT (CairoDFB_Glyphs, "  -> loading [%2d] <- rect %p, img %p, entry %p\n", i, rect, img, chars[i]);
+
+            src = img->data;
+
+            D_DEBUG_AT (CairoDFB_Glyphs, "     from %p\n", src);
+
             dst += rect->y * pitch + (_directfb_argb_font ? (rect->x<<2) : rect->x);
                         
+            D_DEBUG_AT (CairoDFB_Glyphs, "     to %4d,%2d (%p)\n", rect->x, rect->y, dst);
+
             if (img->format == CAIRO_FORMAT_A1) {
                 for (h = rect->h; h; h--) {
                     if (_directfb_argb_font) {
@@ -1563,9 +1722,13 @@ _directfb_acquire_font_cache (cairo_directfb_surface_t     *surface,
         cache->dfbsurface->Unlock (cache->dfbsurface);
     }
 
+    _cairo_cache_thaw( scaled_font->glyphs );
+
     cache->x = x;
     cache->y = y;
     
+    D_DEBUG_AT (CairoDFB_Font, "  => cache %d,%d, %p [%d]\n", x, y, cache, n);
+
     *ret_cache = cache;
     *ret_num   = n;
 
@@ -1577,7 +1740,7 @@ _cairo_directfb_surface_scaled_font_fini (cairo_scaled_font_t *scaled_font)
 {
     cairo_directfb_font_cache_t *cache = scaled_font->surface_private;
     
-    D_DEBUG_AT (Cairo_DirectFB,
+    D_DEBUG_AT (CairoDFB_Font,
                 "%s( scaled_font=%p ).\n", __FUNCTION__, scaled_font);
     
     if (cache) {
@@ -1590,7 +1753,7 @@ static void
 _cairo_directfb_surface_scaled_glyph_fini (cairo_scaled_glyph_t *scaled_glyph,
                                            cairo_scaled_font_t  *scaled_font)
 {
-     D_DEBUG_AT (Cairo_DirectFB,
+     D_DEBUG_AT (CairoDFB_Font,
                  "%s( scaled_glyph=%p, scaled_font=%p ).\n",
                  __FUNCTION__, scaled_glyph, scaled_font);
 
@@ -1619,7 +1782,7 @@ _cairo_directfb_surface_show_glyphs (void                *abstract_dst,
     DFBPoint                     points[num_glyphs];
     int                          num;
     
-    D_DEBUG_AT (Cairo_DirectFB,
+    D_DEBUG_AT (CairoDFB_Font,
                 "%s( dst=%p, op=%d, pattern=%p, glyphs=%p, num_glyphs=%d, scaled_font=%p ).\n",
                 __FUNCTION__, dst, op, pattern, glyphs, num_glyphs, scaled_font);
                             
@@ -1660,12 +1823,14 @@ _cairo_directfb_surface_show_glyphs (void                *abstract_dst,
     dst->dfbsurface->SetDstBlendFunction (dst->dfbsurface, dblend);
     dst->dfbsurface->SetColor (dst->dfbsurface, color.r, color.g, color.b, color.a);
     
-    D_DEBUG_AT (Cairo_DirectFB, "Running BatchBlit().\n");
+    D_DEBUG_AT (CairoDFB_Font, "  ===> BatchBlit()\n");
         
     RUN_CLIPPED (dst, NULL,
                  dst->dfbsurface->BatchBlit (dst->dfbsurface,
                                          cache->dfbsurface, rects, points, num));
         
+    dst->dfbsurface->ReleaseSource (dst->dfbsurface);
+
     return CAIRO_STATUS_SUCCESS;
 }
 #endif /* DFB_SHOW_GLYPHS */
@@ -1758,7 +1923,7 @@ cairo_directfb_surface_backend_init (IDirectFB *dfb)
         cairo_directfb_surface_backend.scaled_glyph_fini = NULL;
         cairo_directfb_surface_backend.show_glyphs = NULL;
 #endif
-        D_DEBUG_AT (Cairo_DirectFB, "Acceleration disabled.\n");
+        D_DEBUG_AT (CairoDFB_Surface, "Acceleration disabled.\n");
     }
     else {
         DFBGraphicsDeviceDescription dsc;
@@ -1766,19 +1931,19 @@ cairo_directfb_surface_backend_init (IDirectFB *dfb)
         dfb->GetDeviceDescription (dfb, &dsc);
     
 #if DFB_COMPOSITE
-        if (!(dsc.acceleration_mask & DFXL_BLIT))
-            cairo_directfb_surface_backend.composite = NULL;
+//        if (!(dsc.acceleration_mask & DFXL_BLIT))
+//            cairo_directfb_surface_backend.composite = NULL;
 #endif
 
 #if DFB_COMPOSITE_TRAPEZOIDS
-        if (!(dsc.acceleration_mask & DFXL_TEXTRIANGLES))
-            cairo_directfb_surface_backend.composite_trapezoids = NULL;
+//        if (!(dsc.acceleration_mask & DFXL_TEXTRIANGLES))
+//            cairo_directfb_surface_backend.composite_trapezoids = NULL;
 #endif
     }
     
     if (getenv ("CAIRO_DIRECTFB_ARGB_FONT")) {
         _directfb_argb_font = 1;
-        D_DEBUG_AT (Cairo_DirectFB, "Using ARGB fonts.\n");
+        D_DEBUG_AT (CairoDFB_Surface, "Using ARGB fonts.\n");
     }
 
     done = 1;