File cairo-1.4.10-lcd-filter-1.patch of Package cairo

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File cairo-1.4.10-lcd-filter-1.patch of Package cairo

--- cairo-1.4.10/src/cairo-ft-font.c
+++ cairo-1.4.10/src/cairo-ft-font.c
@@ -55,6 +55,8 @@
 #include FT_SYNTHESIS_H
 #endif
 
+#include FT_LCD_FILTER_H
+
 #define DOUBLE_TO_26_6(d) ((FT_F26Dot6)((d) * 64.0))
 #define DOUBLE_FROM_26_6(t) ((double)(t) / 64.0)
 #define DOUBLE_TO_16_16(d) ((FT_Fixed)((d) * 65536.0))
@@ -701,23 +703,300 @@
     return CAIRO_STATUS_SUCCESS;
 }
 
-/* Empirically-derived subpixel filtering values thanks to Keith
- * Packard and libXft. */
-static const int    filters[3][3] = {
-    /* red */
-#if 0
-    {    65538*4/7,65538*2/7,65538*1/7 },
-    /* green */
-    {    65536*1/4, 65536*2/4, 65537*1/4 },
-    /* blue */
-    {    65538*1/7,65538*2/7,65538*4/7 },
+/* we sometimes need to convert the glyph bitmap in a FT_GlyphSlot
+ * into a different format. For example, we want to convert a
+ * FT_PIXEL_MODE_LCD or FT_PIXEL_MODE_LCD_V bitmap into a 32-bit
+ * ARGB or ABGR bitmap.
+ *
+ * this function prepares a target descriptor for this operation.
+ *
+ * input :: target bitmap descriptor. The function will set its
+ *          'width', 'rows' and 'pitch' fields, and only these
+ *
+ * slot  :: the glyph slot containing the source bitmap. this
+ *          function assumes that slot->format == FT_GLYPH_FORMAT_BITMAP
+ *
+ * mode  :: the requested final rendering mode. supported values are
+ *          MONO, NORMAL (i.e. gray), LCD and LCD_V
+ *
+ * the function returns the size in bytes of the corresponding buffer,
+ * it's up to the caller to allocate the corresponding memory block
+ * before calling _fill_xrender_bitmap
+ *
+ * it also returns -1 in case of error (e.g. incompatible arguments,
+ * like trying to convert a gray bitmap into a monochrome one)
+ */
+static int
+_compute_xrender_bitmap_size( FT_Bitmap*      target,
+                              FT_GlyphSlot    slot,
+                              FT_Render_Mode  mode )
+{
+    FT_Bitmap*  ftbit;
+    int         width, height, pitch;
+
+    if ( slot->format != FT_GLYPH_FORMAT_BITMAP )
+        return -1;
+
+    // compute the size of the final bitmap
+    ftbit  = &slot->bitmap;
+
+    width  = ftbit->width;
+    height = ftbit->rows;
+    pitch  = (width+3) & ~3;
+
+    switch ( ftbit->pixel_mode )
+    {
+    case FT_PIXEL_MODE_MONO:
+        if ( mode == FT_RENDER_MODE_MONO )
+        {
+          pitch = (((width+31) & ~31) >> 3);
+          break;
+        }
+        /* fall-through */
+
+    case FT_PIXEL_MODE_GRAY:
+        if ( mode == FT_RENDER_MODE_LCD   ||
+            mode == FT_RENDER_MODE_LCD_V )
+        {
+            /* each pixel is replicated into a 32-bit ARGB value */
+            pitch = width*4;
+        }
+        break;
+
+    case FT_PIXEL_MODE_LCD:
+        if ( mode != FT_RENDER_MODE_LCD )
+            return -1;
+
+      /* horz pixel triplets are packed into 32-bit ARGB values */
+      width   /= 3;
+      pitch    = width*4;
+      break;
+
+    case FT_PIXEL_MODE_LCD_V:
+        if ( mode != FT_RENDER_MODE_LCD_V )
+            return -1;
+
+        /* vert pixel triplets are packed into 32-bit ARGB values */
+        height  /= 3;
+        pitch    = width*4;
+        break;
+
+    default:  /* unsupported source format */
+        return -1;
+    }
+
+    target->width  = width;
+    target->rows   = height;
+    target->pitch  = pitch;
+    target->buffer = NULL;
+
+    return pitch * height;
+}
+
+/* this functions converts the glyph bitmap found in a FT_GlyphSlot
+ * into a different format (see _compute_xrender_bitmap_size)
+ *
+ * you should call this function after _compute_xrender_bitmap_size
+ *
+ * target :: target bitmap descriptor. Note that its 'buffer' pointer
+ *           must point to memory allocated by the caller
+ *
+ * slot   :: the glyph slot containing the source bitmap
+ *
+ * mode   :: the requested final rendering mode
+ *
+ * bgr    :: boolean, set if BGR or VBGR pixel ordering is needed
+ */
+static void
+_fill_xrender_bitmap( FT_Bitmap*      target,
+                      FT_GlyphSlot    slot,
+                      FT_Render_Mode  mode,
+                      int             bgr )
+{
+    FT_Bitmap*   ftbit = &slot->bitmap;
+    unsigned char*   srcLine   = ftbit->buffer;
+    unsigned char*   dstLine   = target->buffer;
+    int              src_pitch = ftbit->pitch;
+    int              width     = target->width;
+    int              height    = target->rows;
+    int              pitch     = target->pitch;
+    int              subpixel;
+    int              h;
+
+    subpixel = ( mode == FT_RENDER_MODE_LCD ||
+        mode == FT_RENDER_MODE_LCD_V );
+
+    if ( src_pitch < 0 )
+      srcLine -= src_pitch*(ftbit->rows-1);
+
+    target->pixel_mode = ftbit->pixel_mode;
+
+    switch ( ftbit->pixel_mode )
+    {
+    case FT_PIXEL_MODE_MONO:
+        if ( subpixel )  /* convert mono to ARGB32 values */
+        {
+            for ( h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch )
+            {
+                int  x;
+
+                for ( x = 0; x < width; x++ )
+                {
+                    if ( srcLine[(x >> 3)] & (0x80 >> (x & 7)) )
+                        ((unsigned int*)dstLine)[x] = 0xffffffffU;
+                }
+            }
+            target->pixel_mode = FT_PIXEL_MODE_LCD;
+        }
+        else if ( mode == FT_RENDER_MODE_NORMAL )  /* convert mono to 8-bit gray */
+        {
+            for ( h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch )
+            {
+                int  x;
+
+                for ( x = 0; x < width; x++ )
+                {
+                    if ( srcLine[(x >> 3)] & (0x80 >> (x & 7)) )
+                        dstLine[x] = 0xff;
+                }
+            }
+            target->pixel_mode = FT_PIXEL_MODE_GRAY;
+        }
+        else  /* copy mono to mono */
+        {
+            int  bytes = (width+7) >> 3;
+
+            for ( h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch )
+                memcpy( dstLine, srcLine, bytes );
+        }
+        break;
+
+    case FT_PIXEL_MODE_GRAY:
+        if ( subpixel )  /* convert gray to ARGB32 values */
+        {
+            for ( h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch )
+            {
+                int            x;
+                unsigned int*  dst = (unsigned int*)dstLine;
+
+                for ( x = 0; x < width; x++ )
+                {
+                    unsigned int  pix = srcLine[x];
+
+                    pix |= (pix << 8);
+                    pix |= (pix << 16);
+
+                    dst[x] = pix;
+                }
+            }
+            target->pixel_mode = FT_PIXEL_MODE_LCD;
+        }
+        else  /* copy gray into gray */
+        {
+            for ( h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch )
+                memcpy( dstLine, srcLine, width );
+        }
+        break;
+
+    case FT_PIXEL_MODE_LCD:
+        if ( !bgr )
+        {
+            /* convert horizontal RGB into ARGB32 */
+            for ( h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch )
+            {
+                int            x;
+                unsigned char* src = srcLine;
+                unsigned int*  dst = (unsigned int*)dstLine;
+
+                for ( x = 0; x < width; x++, src += 3 )
+                {
+                    unsigned int  pix;
+
+                    pix = ((unsigned int)src[0] << 16) |
+                          ((unsigned int)src[1] <<  8) |
+                          ((unsigned int)src[2]      ) |
+                          ((unsigned int)src[1] << 24) ;
+
+                    dst[x] = pix;
+                }
+            }
+        }
+        else
+        {
+          /* convert horizontal BGR into ARGB32 */
+          for ( h = height; h > 0; h--, srcLine += src_pitch, dstLine += pitch )
+          {
+              int            x;
+              unsigned char* src = srcLine;
+              unsigned int*  dst = (unsigned int*)dstLine;
+
+              for ( x = 0; x < width; x++, src += 3 )
+              {
+                  unsigned int  pix;
+
+                  pix = ((unsigned int)src[2] << 16) |
+                        ((unsigned int)src[1] <<  8) |
+                        ((unsigned int)src[0]      ) |
+                        ((unsigned int)src[1] << 24) ;
+
+                  dst[x] = pix;
+              }
+          }
+        }
+        break;
+
+    default:  /* FT_PIXEL_MODE_LCD_V */
+        /* convert vertical RGB into ARGB32 */
+        if ( !bgr )
+        {
+            for ( h = height; h > 0; h--, srcLine += 3*src_pitch, dstLine += pitch )
+            {
+                int            x;
+                unsigned char* src = srcLine;
+                unsigned int*  dst = (unsigned int*)dstLine;
+
+                for ( x = 0; x < width; x++, src += 1 )
+                {
+                    unsigned int  pix;
+#if 1
+                    pix = ((unsigned int)src[0]           << 16) |
+                          ((unsigned int)src[src_pitch]   <<  8) |
+                          ((unsigned int)src[src_pitch*2]      ) |
+                          0xFF000000 ;
+#else
+                    pix = ((unsigned int)src[0]           << 16) |
+                          ((unsigned int)src[src_pitch]   <<  8) |
+                          ((unsigned int)src[src_pitch*2]      ) |
+                          ((unsigned int)src[src_pitch]   << 24) ;
 #endif
-    {    65538*9/13,65538*3/13,65538*1/13 },
-    /* green */
-    {    65538*1/6, 65538*4/6, 65538*1/6 },
-    /* blue */
-    {    65538*1/13,65538*3/13,65538*9/13 },
-};
+                    dst[x] = pix;
+                }
+            }
+        }
+        else
+        {
+            for ( h = height; h > 0; h--, srcLine += 3*src_pitch, dstLine += pitch )
+            {
+                int            x;
+                unsigned char* src = srcLine;
+                unsigned int*  dst = (unsigned int*)dstLine;
+
+                for ( x = 0; x < width; x++, src += 1 )
+                {
+                    unsigned int  pix;
+
+                    pix = ((unsigned int)src[src_pitch*2] << 16) |
+                        ((unsigned int)src[src_pitch]   <<  8) |
+                        ((unsigned int)src[0]                ) |
+                        ((unsigned int)src[src_pitch]   << 24) ;
+
+                    dst[x] = pix;
+                }
+            }
+        }
+    }
+}
+
 
 /* Fills in val->image with an image surface created from @bitmap
  */
@@ -730,12 +1009,14 @@
     int width, height, stride;
     unsigned char *data;
     int format = CAIRO_FORMAT_A8;
-    cairo_bool_t subpixel = FALSE;
+    cairo_image_surface_t  *image;
 
     width = bitmap->width;
     height = bitmap->rows;
 
-    switch (bitmap->pixel_mode) {
+    {
+        switch (bitmap->pixel_mode)
+        {
     case FT_PIXEL_MODE_MONO:
 	stride = (((width + 31) & ~31) >> 3);
 	if (own_buffer) {
@@ -765,7 +1046,6 @@
 		}
 	    }
 	}
-
 #ifndef WORDS_BIGENDIAN
 	{
 	    unsigned char   *d = data;
@@ -777,17 +1057,15 @@
 	    }
 	}
 #endif
+
 	format = CAIRO_FORMAT_A1;
 	break;
 
     case FT_PIXEL_MODE_LCD:
     case FT_PIXEL_MODE_LCD_V:
     case FT_PIXEL_MODE_GRAY:
-	switch (font_options->antialias) {
-	case CAIRO_ANTIALIAS_DEFAULT:
-	case CAIRO_ANTIALIAS_GRAY:
-	case CAIRO_ANTIALIAS_NONE:
-	default:
+            if (font_options->antialias != CAIRO_ANTIALIAS_SUBPIXEL)
+            {
 	    stride = bitmap->pitch;
 	    if (own_buffer) {
 		data = bitmap->buffer;
@@ -800,107 +1078,19 @@
 		memcpy (data, bitmap->buffer, stride * height);
 	    }
 	    format = CAIRO_FORMAT_A8;
-	    break;
-	case CAIRO_ANTIALIAS_SUBPIXEL: {
-	    int		    x, y;
-	    unsigned char   *in_line, *out_line, *in;
-	    unsigned int    *out;
-	    unsigned int    red, green, blue;
-	    int		    rf, gf, bf;
-	    int		    s;
-	    int		    o, os;
-	    unsigned char   *data_rgba;
-	    unsigned int    width_rgba, stride_rgba;
-	    int		    vmul = 1;
-	    int		    hmul = 1;
-
-	    switch (font_options->subpixel_order) {
-	    case CAIRO_SUBPIXEL_ORDER_DEFAULT:
-	    case CAIRO_SUBPIXEL_ORDER_RGB:
-	    case CAIRO_SUBPIXEL_ORDER_BGR:
-	    default:
-		width /= 3;
-		hmul = 3;
-		break;
-	    case CAIRO_SUBPIXEL_ORDER_VRGB:
-	    case CAIRO_SUBPIXEL_ORDER_VBGR:
-		vmul = 3;
-		height /= 3;
-		break;
+            } else {
+                // if we get there, the  data from the source bitmap
+                // really comes from _fill_xrender_bitmap, and is
+                // made of 32-bit ARGB or ABGR values
+                assert(own_buffer != 0);
+                assert(bitmap->pixel_mode != FT_PIXEL_MODE_GRAY);
+
+                data   = bitmap->buffer;
+		stride = bitmap->pitch;
+		format = CAIRO_FORMAT_ARGB32;
 	    }
-	    /*
-	     * Filter the glyph to soften the color fringes
-	     */
-	    width_rgba = width;
-	    stride = bitmap->pitch;
-	    stride_rgba = (width_rgba * 4 + 3) & ~3;
-	    data_rgba = calloc (1, stride_rgba * height);
-	    if (data_rgba == NULL) {
-		if (own_buffer)
-		    free (bitmap->buffer);
-		_cairo_error (CAIRO_STATUS_NO_MEMORY);
-		return CAIRO_STATUS_NO_MEMORY;
-	    }
-
-	    os = 1;
-	    switch (font_options->subpixel_order) {
-	    case CAIRO_SUBPIXEL_ORDER_VRGB:
-		os = stride;
-	    case CAIRO_SUBPIXEL_ORDER_DEFAULT:
-	    case CAIRO_SUBPIXEL_ORDER_RGB:
-	    default:
-		rf = 0;
-		gf = 1;
-		bf = 2;
-		break;
-	    case CAIRO_SUBPIXEL_ORDER_VBGR:
-		os = stride;
-	    case CAIRO_SUBPIXEL_ORDER_BGR:
-		bf = 0;
-		gf = 1;
-		rf = 2;
-		break;
-	    }
-	    in_line = bitmap->buffer;
-	    out_line = data_rgba;
-	    for (y = 0; y < height; y++)
-	    {
-		in = in_line;
-		out = (unsigned int *) out_line;
-		in_line += stride * vmul;
-		out_line += stride_rgba;
-		for (x = 0; x < width * hmul; x += hmul)
-		{
-		    red = green = blue = 0;
-		    o = 0;
-		    for (s = 0; s < 3; s++)
-		    {
-			red += filters[rf][s]*in[x+o];
-			green += filters[gf][s]*in[x+o];
-			blue += filters[bf][s]*in[x+o];
-			o += os;
-		    }
-		    red = red / 65536;
-		    green = green / 65536;
-		    blue = blue / 65536;
-		    *out++ = (green << 24) | (red << 16) | (green << 8) | blue;
-		}
-	    }
-
-	    /* Images here are stored in native format. The
-	     * backend must convert to its own format as needed
-	     */
-
-	    if (own_buffer)
-		free (bitmap->buffer);
-	    data = data_rgba;
-	    stride = stride_rgba;
-	    format = CAIRO_FORMAT_ARGB32;
-	    subpixel = TRUE;
 	    break;
-	}
-	}
-	break;
+
     case FT_PIXEL_MODE_GRAY2:
     case FT_PIXEL_MODE_GRAY4:
 	/* These could be triggered by very rare types of TrueType fonts */
@@ -911,20 +1101,21 @@
 	return CAIRO_STATUS_NO_MEMORY;
     }
 
-    *surface = (cairo_image_surface_t *)
+        /* XXX */
+        *surface = image = (cairo_image_surface_t *)
 	cairo_image_surface_create_for_data (data,
 					     format,
 					     width, height, stride);
-    if ((*surface)->base.status) {
+        if (image->base.status) {
 	free (data);
 	return CAIRO_STATUS_NO_MEMORY;
     }
 
-    if (subpixel)
-	pixman_image_set_component_alpha ((*surface)->pixman_image, TRUE);
-
-    _cairo_image_surface_assume_ownership_of_data ((*surface));
+        if (font_options->antialias == CAIRO_ANTIALIAS_SUBPIXEL)
+            pixman_image_set_component_alpha (image->pixman_image, TRUE);
 
+        _cairo_image_surface_assume_ownership_of_data (image);
+    }
     return CAIRO_STATUS_SUCCESS;
 }
 
@@ -948,16 +1139,44 @@
 		       cairo_font_options_t	 *font_options,
 		       cairo_image_surface_t	**surface)
 {
+    int rgba = FC_RGBA_UNKNOWN;
     FT_GlyphSlot glyphslot = face->glyph;
     FT_Outline *outline = &glyphslot->outline;
     FT_Bitmap bitmap;
     FT_BBox cbox;
-    FT_Matrix matrix;
-    int hmul = 1;
-    int vmul = 1;
     unsigned int width, height, stride;
-    cairo_bool_t subpixel = FALSE;
+    cairo_format_t format;
     cairo_status_t status;
+    FT_Error  fterror;
+    FT_Library  library = glyphslot->library;
+    FT_Render_Mode  render_mode = FT_RENDER_MODE_NORMAL;
+
+    switch (font_options->antialias)
+    {
+    case CAIRO_ANTIALIAS_NONE:
+        render_mode = FT_RENDER_MODE_MONO;
+        break;
+
+    case CAIRO_ANTIALIAS_SUBPIXEL:
+        switch (font_options->subpixel_order)
+        {
+            case CAIRO_SUBPIXEL_ORDER_DEFAULT:
+            case CAIRO_SUBPIXEL_ORDER_RGB:
+            case CAIRO_SUBPIXEL_ORDER_BGR:
+                render_mode = FT_RENDER_MODE_LCD;
+                break;
+
+            case CAIRO_SUBPIXEL_ORDER_VRGB:
+            case CAIRO_SUBPIXEL_ORDER_VBGR:
+                render_mode = FT_RENDER_MODE_LCD_V;
+                break;
+        }
+        break;
+
+    case CAIRO_ANTIALIAS_DEFAULT:
+    case CAIRO_ANTIALIAS_GRAY:
+        render_mode = FT_RENDER_MODE_NORMAL;
+    }
 
     FT_Outline_Get_CBox (outline, &cbox);
 
@@ -968,100 +1187,88 @@
 
     width = (unsigned int) ((cbox.xMax - cbox.xMin) >> 6);
     height = (unsigned int) ((cbox.yMax - cbox.yMin) >> 6);
-    stride = (width * hmul + 3) & ~3;
+    stride = (width + 3) & ~3;
 
     if (width * height == 0) {
-	cairo_format_t format;
 	/* Looks like fb handles zero-sized images just fine */
-	switch (font_options->antialias) {
-	case CAIRO_ANTIALIAS_NONE:
+	switch (render_mode) {
+	case FT_RENDER_MODE_MONO:
 	    format = CAIRO_FORMAT_A1;
 	    break;
-	case CAIRO_ANTIALIAS_SUBPIXEL:
-	    format= CAIRO_FORMAT_ARGB32;
+	case FT_RENDER_MODE_LCD:
+	case FT_RENDER_MODE_LCD_V:
+            format = CAIRO_FORMAT_ARGB32;
 	    break;
-	case CAIRO_ANTIALIAS_DEFAULT:
-	case CAIRO_ANTIALIAS_GRAY:
 	default:
 	    format = CAIRO_FORMAT_A8;
-	    break;
 	}
 
 	(*surface) = (cairo_image_surface_t *)
 	    cairo_image_surface_create_for_data (NULL, format, 0, 0, 0);
 	if ((*surface)->base.status)
 	    return CAIRO_STATUS_NO_MEMORY;
+
     } else  {
 
-	matrix.xx = matrix.yy = 0x10000L;
-	matrix.xy = matrix.yx = 0;
+	int  bitmap_size;
 
-	switch (font_options->antialias) {
-	case CAIRO_ANTIALIAS_NONE:
-	    bitmap.pixel_mode = FT_PIXEL_MODE_MONO;
-	    bitmap.num_grays  = 1;
-	    stride = ((width + 31) & -32) >> 3;
+	switch (render_mode)
+	{
+	case FT_RENDER_MODE_LCD:
+            if (font_options->subpixel_order == CAIRO_SUBPIXEL_ORDER_BGR  ) {
+                rgba = FC_RGBA_BGR;
+            } else {
+                rgba = FC_RGBA_RGB;
+            }
 	    break;
-	case CAIRO_ANTIALIAS_DEFAULT:
-	case CAIRO_ANTIALIAS_GRAY:
-	    bitmap.pixel_mode = FT_PIXEL_MODE_GRAY;
-	    bitmap.num_grays  = 256;
-	    stride = (width + 3) & -4;
+
+        case FT_RENDER_MODE_LCD_V:
+            if (font_options->subpixel_order == CAIRO_SUBPIXEL_ORDER_VBGR ) {
+                rgba = FC_RGBA_VBGR;
+            } else {
+                rgba = FC_RGBA_VRGB;
+            }
 	    break;
-	case CAIRO_ANTIALIAS_SUBPIXEL:
-	    switch (font_options->subpixel_order) {
-	    case CAIRO_SUBPIXEL_ORDER_RGB:
-	    case CAIRO_SUBPIXEL_ORDER_BGR:
-	    case CAIRO_SUBPIXEL_ORDER_DEFAULT:
+
 	    default:
-		matrix.xx *= 3;
-		hmul = 3;
-		subpixel = TRUE;
-		break;
-	    case CAIRO_SUBPIXEL_ORDER_VRGB:
-	    case CAIRO_SUBPIXEL_ORDER_VBGR:
-		matrix.yy *= 3;
-		vmul = 3;
-		subpixel = TRUE;
-		break;
+            ;
 	    }
-	    FT_Outline_Transform (outline, &matrix);
 
-	    bitmap.pixel_mode = FT_PIXEL_MODE_GRAY;
-	    bitmap.num_grays  = 256;
-	    stride = (width * hmul + 3) & -4;
-	}
+        FT_Library_SetLcdFilter( library, FT_LCD_FILTER_DEFAULT );
 
-	bitmap.pitch = stride;
-	bitmap.width = width * hmul;
-	bitmap.rows = height * vmul;
-	bitmap.buffer = calloc (1, stride * bitmap.rows);
+        fterror = FT_Render_Glyph( face->glyph, render_mode );
 
-	if (bitmap.buffer == NULL) {
-	    _cairo_error (CAIRO_STATUS_NO_MEMORY);
+        FT_Library_SetLcdFilter( library, FT_LCD_FILTER_NONE );
+
+        if (fterror != 0)
 	    return CAIRO_STATUS_NO_MEMORY;
-	}
 
-	FT_Outline_Translate (outline, -cbox.xMin*hmul, -cbox.yMin*vmul);
+        bitmap_size = _compute_xrender_bitmap_size( &bitmap,
+                                                    face->glyph,
+                                                    render_mode );
+        if ( bitmap_size < 0 )
+            return CAIRO_STATUS_NO_MEMORY;
 
-	if (FT_Outline_Get_Bitmap (glyphslot->library, outline, &bitmap) != 0) {
-	    free (bitmap.buffer);
-	    _cairo_error (CAIRO_STATUS_NO_MEMORY);
+        bitmap.buffer = calloc(1, bitmap_size);
+        if (bitmap.buffer == NULL) {
 	    return CAIRO_STATUS_NO_MEMORY;
 	}
 
+        _fill_xrender_bitmap( &bitmap, face->glyph, render_mode,
+                              (rgba == FC_RGBA_BGR || rgba == FC_RGBA_VBGR) );
+
+        // NOTE: _get_bitmap_surface will free bitmap.buffer if there is an error
 	status = _get_bitmap_surface (&bitmap, TRUE, font_options, surface);
 	if (status)
 	    return status;
-    }
-
     /*
      * Note: the font's coordinate system is upside down from ours, so the
      * Y coordinate of the control box needs to be negated.
      */
     cairo_surface_set_device_offset (&(*surface)->base,
-				     floor ((double) cbox.xMin / 64.0),
-				     floor (-(double) cbox.yMax / 64.0));
+				     (double) glyphslot->bitmap_left,
+				     (double)-glyphslot->bitmap_top);
+    }
 
     return CAIRO_STATUS_SUCCESS;
 }
@@ -1433,11 +1640,11 @@
 		case CAIRO_SUBPIXEL_ORDER_DEFAULT:
 		case CAIRO_SUBPIXEL_ORDER_RGB:
 		case CAIRO_SUBPIXEL_ORDER_BGR:
-		    load_target |= FT_LOAD_TARGET_LCD;
+		    load_target = FT_LOAD_TARGET_LCD;
 		    break;
 		case CAIRO_SUBPIXEL_ORDER_VRGB:
 		case CAIRO_SUBPIXEL_ORDER_VBGR:
-		    load_target |= FT_LOAD_TARGET_LCD_V;
+		    load_target = FT_LOAD_TARGET_LCD_V;
 		break;
 		}
 	    }

Places

File cairo-1.4.10-lcd-filter-1.patch of Package cairo

Places