/* cairo - a vector graphics library with display and print output * * Copyright © 2003 University of Southern California * * This library is free software; you can redistribute it and/or * modify it either under the terms of the GNU Lesser General Public * License version 2.1 as published by the Free Software Foundation * (the "LGPL") or, at your option, under the terms of the Mozilla * Public License Version 1.1 (the "MPL"). If you do not alter this * notice, a recipient may use your version of this file under either * the MPL or the LGPL. * * You should have received a copy of the LGPL along with this library * in the file COPYING-LGPL-2.1; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * You should have received a copy of the MPL along with this library * in the file COPYING-MPL-1.1 * * The contents of this file are subject to the Mozilla Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY * OF ANY KIND, either express or implied. See the LGPL or the MPL for * the specific language governing rights and limitations. * * The Original Code is the cairo graphics library. * * The Initial Developer of the Original Code is University of Southern * California. * * Contributor(s): * Michael Emmel * Claudio Ciccani */ #include #include #include #include #include #include #include #include #include #include "cairo-directfb.h" #include "cairoint.h" /* * Rectangle works fine. */ #define DFB_RECTANGLES 1 /* * Composite works fine. */ #define DFB_COMPOSITE 1 /* * CompositeTrapezoids works (without antialiasing). */ #define DFB_COMPOSITE_TRAPEZOIDS 0 /* * ShowGlyphs works fine. */ #define DFB_SHOW_GLYPHS 1 D_DEBUG_DOMAIN (Cairo_DirectFB, "Cairo/DirectFB", "Cairo DirectFB backend"); /*****************************************************************************/ typedef struct _cairo_directfb_surface { cairo_surface_t base; cairo_format_t format; IDirectFB *dfb; int owner; IDirectFBSurface *dfbsurface; /* color buffer */ cairo_surface_t *color; DFBRegion *clips; int n_clips; DFBRegion *dirty_region; int width; int height; } cairo_directfb_surface_t; typedef struct _cairo_directfb_font_cache { IDirectFB *dfb; IDirectFBSurface *dfbsurface; int width; int height; /* coordinates within the surface * of the last loaded glyph */ int x; int y; } cairo_directfb_font_cache_t; static cairo_surface_backend_t cairo_directfb_surface_backend; /*****************************************************************************/ #define RUN_CLIPPED( surface, clip, func ) {\ if ((surface)->clips) {\ int k;\ for (k = 0; k < (surface)->n_clips; k++) {\ if (clip) {\ DFBRegion reg = (surface)->clips[k];\ DFBRegion *cli = (clip);\ if (reg.x2 < cli->x1 || reg.y2 < cli->y1 ||\ reg.x1 > cli->x2 || reg.y1 > cli->y2)\ continue;\ if (reg.x1 < cli->x1)\ reg.x1 = cli->x1;\ if (reg.y1 < cli->y1)\ reg.y1 = cli->y1;\ if (reg.x2 > cli->x2)\ reg.x2 = cli->x2;\ if (reg.y2 > cli->y2)\ reg.y2 = cli->y2;\ (surface)->dfbsurface->SetClip ((surface)->dfbsurface, ®);\ }\ else {\ (surface)->dfbsurface->SetClip ((surface)->dfbsurface,\ &(surface)->clips[k]);\ }\ func;\ }\ }\ else {\ (surface)->dfbsurface->SetClip ((surface)->dfbsurface, clip);\ func;\ }\ } #define TRANSFORM_POINT( m, x, y, ret_x, ret_y ) {\ double _x = (x);\ double _y = (y);\ (ret_x) = (_x * (m)->xx + _y * (m)->xy + (m)->x0);\ (ret_y) = (_x * (m)->yx + _y * (m)->yy + (m)->y0);\ } /* XXX: A1 has a different bits ordering in cairo. * Probably we should drop it. */ static cairo_content_t _directfb_format_to_content ( DFBSurfacePixelFormat format ) { switch (format) { case DSPF_ARGB: return CAIRO_CONTENT_COLOR_ALPHA; case DSPF_A8: return CAIRO_CONTENT_ALPHA; case DSPF_RGB32: case DSPF_A1: default: return CAIRO_CONTENT_COLOR; break; } } static inline DFBSurfacePixelFormat cairo_to_directfb_format (cairo_format_t format) { switch (format) { case CAIRO_FORMAT_RGB24: return DSPF_RGB32; case CAIRO_FORMAT_ARGB32: return DSPF_ARGB; case CAIRO_FORMAT_A8: return DSPF_A8; case CAIRO_FORMAT_A1: return DSPF_A1; default: break; } return -1; } static inline cairo_format_t directfb_to_cairo_format (DFBSurfacePixelFormat format) { switch (format) { case DSPF_RGB32: return CAIRO_FORMAT_RGB24; case DSPF_ARGB: return CAIRO_FORMAT_ARGB32; case DSPF_A8 : return CAIRO_FORMAT_A8; case DSPF_A1 : return CAIRO_FORMAT_A1; default: break; } return -1; } static cairo_status_t _directfb_get_operator (cairo_operator_t operator, DFBSurfaceDrawingFlags *ret_drawing, DFBSurfaceBlittingFlags *ret_blitting, DFBSurfaceBlendFunction *ret_srcblend, DFBSurfaceBlendFunction *ret_dstblend ) { DFBSurfaceDrawingFlags drawing = DSDRAW_BLEND; DFBSurfaceBlittingFlags blitting = DSBLIT_BLEND_ALPHACHANNEL; DFBSurfaceBlendFunction srcblend = DSBF_ONE; DFBSurfaceBlendFunction dstblend = DSBF_ZERO; switch (operator) { case CAIRO_OPERATOR_CLEAR: srcblend = DSBF_ZERO; dstblend = DSBF_ZERO; break; case CAIRO_OPERATOR_SOURCE: drawing = DSDRAW_NOFX; blitting = DSBLIT_NOFX; break; case CAIRO_OPERATOR_OVER: srcblend = DSBF_ONE; dstblend = DSBF_INVSRCALPHA; break; case CAIRO_OPERATOR_IN: srcblend = DSBF_DESTALPHA; dstblend = DSBF_ZERO; break; case CAIRO_OPERATOR_OUT: srcblend = DSBF_INVDESTALPHA; dstblend = DSBF_ZERO; break; case CAIRO_OPERATOR_ATOP: srcblend = DSBF_DESTALPHA; dstblend = DSBF_INVSRCALPHA; break; case CAIRO_OPERATOR_DEST: srcblend = DSBF_ZERO; dstblend = DSBF_ONE; break; case CAIRO_OPERATOR_DEST_OVER: srcblend = DSBF_INVDESTALPHA; dstblend = DSBF_ONE; break; case CAIRO_OPERATOR_DEST_IN: srcblend = DSBF_ZERO; dstblend = DSBF_SRCALPHA; break; case CAIRO_OPERATOR_DEST_OUT: srcblend = DSBF_ZERO; dstblend = DSBF_INVSRCALPHA; break; case CAIRO_OPERATOR_DEST_ATOP: srcblend = DSBF_INVDESTALPHA; dstblend = DSBF_SRCALPHA; break; case CAIRO_OPERATOR_XOR: srcblend = DSBF_INVDESTALPHA; dstblend = DSBF_INVSRCALPHA; break; case CAIRO_OPERATOR_ADD: srcblend = DSBF_ONE; dstblend = DSBF_ONE; break; case CAIRO_OPERATOR_SATURATE: srcblend = DSBF_SRCALPHASAT; dstblend = DSBF_ONE; break; default: return CAIRO_INT_STATUS_UNSUPPORTED; } if (ret_drawing) *ret_drawing = drawing; if (ret_blitting) *ret_blitting = blitting; if (ret_srcblend) *ret_srcblend = srcblend; if (ret_dstblend) *ret_dstblend = dstblend; return CAIRO_STATUS_SUCCESS; } static IDirectFBSurface* _directfb_buffer_surface_create (IDirectFB *dfb, DFBSurfacePixelFormat format, int width, int height) { IDirectFBSurface *buffer; DFBSurfaceDescription dsc; DFBResult ret; dsc.flags = DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT; dsc.width = width; dsc.height = height; dsc.pixelformat = format; ret = dfb->CreateSurface (dfb, &dsc, &buffer); if (ret) { DirectFBError ("IDirectFB::CreateSurface()", ret); return NULL; } return buffer; } static cairo_status_t _directfb_acquire_surface (cairo_directfb_surface_t *surface, cairo_rectangle_int16_t *intrest_rec, cairo_image_surface_t **image_out, cairo_rectangle_int16_t *image_rect_out, void **image_extra, DFBSurfaceLockFlags lock_flags) { void *data; int pitch; IDirectFBSurface *buffer; DFBRectangle source_rect; cairo_format_t cairo_format; cairo_format = surface->format; if (surface->format == -1) { 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); } D_DEBUG_AT (Cairo_DirectFB, "%s buffer for surface.\n", surface->dfbsurface ? "Reallocating" : "Allocating"); cairo_format = directfb_to_cairo_format(DSPF_ARGB); buffer = _directfb_buffer_surface_create (surface->dfb,DSPF_ARGB,source_rect.w,source_rect.h); if (!buffer) goto ERROR; *image_extra = buffer; buffer->SetBlittingFlags (buffer,DSBLIT_BLEND_ALPHACHANNEL | DSBLIT_COLORIZE); buffer->Blit (buffer,surface->dfbsurface,&source_rect,0,0); } else { /*might be a subsurface get the offset*/ surface->dfbsurface->GetVisibleRectangle (surface->dfbsurface,&source_rect); buffer = surface->dfbsurface; *image_extra = buffer; } if( buffer->Lock (buffer,lock_flags, &data, &pitch) ) goto ERROR; *image_out = (cairo_image_surface_t *)cairo_image_surface_create_for_data (data, cairo_format,source_rect.w,source_rect.h, pitch); if (*image_out == NULL ) goto ERROR; if (image_rect_out) { image_rect_out->x = source_rect.x; image_rect_out->y = source_rect.y; image_rect_out->width = source_rect.w; image_rect_out->height = source_rect.h; }else { /*lock for read*/ cairo_surface_t *sur = &((*image_out)->base); /*might be a subsurface*/ if( buffer == surface->dfbsurface ) cairo_surface_set_device_offset (sur,source_rect.x,source_rect.y); } return CAIRO_STATUS_SUCCESS; ERROR: *image_extra = NULL; if( buffer ) { buffer->Unlock (buffer); if( buffer != surface->dfbsurface) buffer->Release(buffer); } return CAIRO_STATUS_NO_MEMORY; } static cairo_surface_t * _cairo_directfb_surface_create_similar (void *abstract_src, cairo_content_t content, int width, int height) { cairo_directfb_surface_t *source = 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); width = (width <= 0) ? 1 : width; height = (height<= 0) ? 1 : height; format = _cairo_format_from_content (content); surface = calloc (1, sizeof(cairo_directfb_surface_t)); if (!surface) return NULL; surface->dfbsurface = _directfb_buffer_surface_create (source->dfb, cairo_to_directfb_format (format), width, height); assert(surface->dfbsurface); surface->owner = TRUE; if (!surface->dfbsurface) { assert(0); free (surface); return NULL; } _cairo_surface_init (&surface->base, &cairo_directfb_surface_backend,content); surface->dfb = source->dfb; surface->format = format; surface->width = width; surface->height = height; return &surface->base; } static cairo_status_t _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); if (surface->clips) { free (surface->clips); surface->clips = NULL; surface->n_clips = 0; } if (surface->color) { cairo_surface_destroy (surface->color); surface->color = NULL; } if (surface->dfbsurface) { if( surface->owner ) surface->dfbsurface->Release (surface->dfbsurface); surface->dfbsurface = NULL; } if (surface->dfb) { surface->dfb = NULL; } return CAIRO_STATUS_SUCCESS; } static cairo_status_t _cairo_directfb_surface_acquire_source_image (void *abstract_surface, cairo_image_surface_t **image_out, void **image_extra) { cairo_directfb_surface_t *surface = abstract_surface; D_DEBUG_AT (Cairo_DirectFB, "%s( surface=%p ).\n", __FUNCTION__, surface); return _directfb_acquire_surface (surface,NULL,image_out,NULL,image_extra,DSLF_READ); } static void _cairo_directfb_surface_release_source_image (void *abstract_surface, cairo_image_surface_t *image, void *image_extra) { cairo_directfb_surface_t *surface = abstract_surface; IDirectFBSurface *buffer = image_extra; D_DEBUG_AT (Cairo_DirectFB, "%s( surface=%p ).\n", __FUNCTION__, surface); buffer->Unlock (buffer); if (surface->dfbsurface != buffer) { buffer->Release (buffer); } cairo_surface_destroy (&image->base); } static cairo_status_t _cairo_directfb_surface_acquire_dest_image (void *abstract_surface, cairo_rectangle_int16_t *interest_rect, cairo_image_surface_t **image_out, cairo_rectangle_int16_t *image_rect_out, void **image_extra) { cairo_directfb_surface_t *surface = abstract_surface; D_DEBUG_AT (Cairo_DirectFB, "%s( surface=%p ).\n", __FUNCTION__, surface); return _directfb_acquire_surface (surface,interest_rect,image_out,image_rect_out,image_extra, DSLF_READ | DSLF_WRITE); } static void _cairo_directfb_surface_release_dest_image (void *abstract_surface, cairo_rectangle_int16_t *interest_rect, cairo_image_surface_t *image, cairo_rectangle_int16_t *image_rect, void *image_extra) { cairo_directfb_surface_t *surface = abstract_surface; IDirectFBSurface *buffer = image_extra; D_DEBUG_AT (Cairo_DirectFB, "%s( surface=%p ).\n", __FUNCTION__, surface); 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, ®ion); //surface->dfbsurface->SetBlittingFlags (surface->dfbsurface, // DSBLIT_BLEND_ALPHACHANNEL | DSBLIT_COLORIZE); surface->dfbsurface->Blit (surface->dfbsurface,buffer,NULL, image_rect->x,image_rect->y); buffer->Release (buffer); } cairo_surface_destroy (&image->base); } static cairo_status_t _cairo_directfb_surface_clone_similar (void *abstract_surface, cairo_surface_t *src, int src_x, int src_y, int width, int height, cairo_surface_t **clone_out) { 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); if (src->backend == surface->base.backend) { cairo_surface_reference (src); *clone_out = src; return CAIRO_STATUS_SUCCESS; } else if (_cairo_surface_is_image (src)) { cairo_image_surface_t *image_src = (cairo_image_surface_t *) src; unsigned char *dst, *src = image_src->data; int pitch; int i, j; DFBResult ret; clone = (cairo_directfb_surface_t *) _cairo_directfb_surface_create_similar (surface, _cairo_content_from_format (image_src->format), image_src->width, image_src->height); if (!clone) return CAIRO_STATUS_NO_MEMORY; ret = clone->dfbsurface->Lock (clone->dfbsurface, DSLF_WRITE, (void *)&dst, &pitch); if (ret) { DirectFBError ("IDirectFBSurface::Lock()", ret); cairo_surface_destroy ((cairo_surface_t *)clone); return CAIRO_STATUS_NO_MEMORY; } dst += pitch * src_y; src += image_src->stride * src_y; if (image_src->format == CAIRO_FORMAT_A1) { /* A1 -> A8 */ for (i = 0; i < height; i++) { for (j = src_x; j < src_x + width; j++) dst[j] = (src[j>>3] & (1 << (j&7))) ? 0xff : 0x00; dst += pitch; src += image_src->stride; } } else { /* A8 -> A8 */ for (i = 0; i < height; i++) { direct_memcpy( dst+src_x, src+src_x, sizeof(*dst)*width ); dst += pitch; src += image_src->stride; } } clone->dfbsurface->Unlock (clone->dfbsurface); *clone_out = &clone->base; return CAIRO_STATUS_SUCCESS; } return CAIRO_INT_STATUS_UNSUPPORTED; } #if DFB_COMPOSITE || DFB_COMPOSITE_TRAPEZOIDS static cairo_int_status_t _directfb_prepare_composite (cairo_directfb_surface_t *dst, cairo_pattern_t *src_pattern, cairo_pattern_t *mask_pattern, cairo_operator_t op, int *src_x, int *src_y, int *mask_x, int *mask_y, unsigned int width, unsigned int height, cairo_directfb_surface_t **ret_src, cairo_surface_attributes_t *ret_src_attr) { cairo_directfb_surface_t *src; cairo_surface_attributes_t src_attr; cairo_status_t ret; DFBSurfaceBlittingFlags flags; DFBSurfaceBlendFunction sblend; DFBSurfaceBlendFunction dblend; DFBColor color; if (_directfb_get_operator (op, NULL, &flags, &sblend, &dblend)) return CAIRO_INT_STATUS_UNSUPPORTED; if (mask_pattern) { cairo_solid_pattern_t *pattern; if (mask_pattern->type != CAIRO_PATTERN_TYPE_SOLID) { cairo_pattern_t *tmp; int tmp_x, tmp_y; if (src_pattern->type != CAIRO_PATTERN_TYPE_SOLID || sblend == DSBF_INVDESTALPHA) /* Doesn't work correctly */ return CAIRO_INT_STATUS_UNSUPPORTED; D_DEBUG_AT (Cairo_DirectFB, "Replacing src pattern by mask pattern.\n"); tmp = src_pattern; tmp_x = *src_x; tmp_y = *src_y; src_pattern = mask_pattern; *src_x = *mask_x; *src_y = *mask_y; mask_pattern = tmp; *mask_x = tmp_x; *mask_y = tmp_y; if (sblend == DSBF_ONE) { flags |= DSBLIT_BLEND_ALPHACHANNEL; sblend = DSBF_SRCALPHA; //dblend = DSBF_INVSRCALPHA; } } pattern = (cairo_solid_pattern_t *)mask_pattern; color.a = pattern->color.alpha_short >> 8; color.r = pattern->color.red_short >> 8; color.g = pattern->color.green_short >> 8; color.b = pattern->color.blue_short >> 8; } else { color.a = color.r = color.g = color.b = 0xff; } if (src_pattern->type == CAIRO_PATTERN_TYPE_SOLID) { cairo_solid_pattern_t *pattern = (cairo_solid_pattern_t *)src_pattern; if (!dst->color) { dst->color = _cairo_directfb_surface_create_similar (dst, CAIRO_CONTENT_COLOR_ALPHA, 1, 1); if (!dst->color) return CAIRO_STATUS_NO_MEMORY; } src = (cairo_directfb_surface_t *)dst->color; src->dfbsurface->SetColor (src->dfbsurface, pattern->color.red_short >> 8, pattern->color.green_short >> 8, pattern->color.blue_short >> 8, pattern->color.alpha_short >> 8); src->dfbsurface->FillRectangle (src->dfbsurface, 0, 0, 1, 1); cairo_matrix_init_identity (&src_attr.matrix); src_attr.matrix = src_pattern->matrix; src_attr.extend = CAIRO_EXTEND_NONE; src_attr.filter = CAIRO_FILTER_NEAREST; src_attr.x_offset = src_attr.y_offset = 0; } else { ret = _cairo_pattern_acquire_surface (src_pattern, &dst->base, *src_x, *src_y, width, height, (cairo_surface_t **)&src, &src_attr); if (ret) return ret; } if (color.a != 0xff) flags |= DSBLIT_BLEND_COLORALPHA; if (color.r != 0xff || color.g != 0xff || color.b != 0xff) flags |= DSBLIT_COLORIZE; dst->dfbsurface->SetBlittingFlags (dst->dfbsurface, flags); if (flags & (DSBLIT_BLEND_COLORALPHA | DSBLIT_BLEND_ALPHACHANNEL)) { dst->dfbsurface->SetSrcBlendFunction (dst->dfbsurface, sblend); dst->dfbsurface->SetDstBlendFunction (dst->dfbsurface, dblend); } if (flags & (DSBLIT_BLEND_COLORALPHA | DSBLIT_COLORIZE)) dst->dfbsurface->SetColor (dst->dfbsurface, color.r, color.g, color.b, color.a); *ret_src = src; *ret_src_attr = src_attr; return CAIRO_STATUS_SUCCESS; } static void _directfb_finish_composite (cairo_directfb_surface_t *dst, cairo_pattern_t *src_pattern, cairo_surface_t *src, cairo_surface_attributes_t *src_attr) { if (src != dst->color) _cairo_pattern_release_surface (src_pattern, src, src_attr); } #endif /* DFB_COMPOSITE || DFB_COMPOSITE_TRAPEZOIDS */ #if DFB_COMPOSITE static cairo_int_status_t _cairo_directfb_surface_composite (cairo_operator_t op, cairo_pattern_t *src_pattern, cairo_pattern_t *mask_pattern, void *abstract_dst, int src_x, int src_y, int mask_x, int mask_y, int dst_x, int dst_y, unsigned int width, unsigned int height) { cairo_directfb_surface_t *dst = abstract_dst; cairo_directfb_surface_t *src; cairo_surface_attributes_t src_attr; cairo_matrix_t *m; cairo_status_t ret; D_DEBUG_AT (Cairo_DirectFB, "%s( op=%d, src_pattern=%p, mask_pattern=%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", __FUNCTION__, op, src_pattern, mask_pattern, dst, src_x, src_y, mask_x, mask_y, dst_x, dst_y, width, height); ret = _directfb_prepare_composite (dst, src_pattern, mask_pattern, op, &src_x, &src_y, &mask_x, &mask_y, width, height, &src, &src_attr); if (ret) return ret; ret = CAIRO_INT_STATUS_UNSUPPORTED; m = &src_attr.matrix; if (_cairo_matrix_is_integer_translation (m, NULL, NULL)) { DFBRectangle sr; sr.x = src_x + src_attr.x_offset; sr.y = src_y + src_attr.y_offset; sr.w = src->width - sr.x; sr.h = src->height - sr.y; if (src_attr.extend == CAIRO_EXTEND_NONE) { D_DEBUG_AT (Cairo_DirectFB, "Running Blit().\n"); RUN_CLIPPED( dst, NULL, dst->dfbsurface->Blit (dst->dfbsurface, src->dfbsurface, &sr, dst_x, dst_y)); ret = CAIRO_STATUS_SUCCESS; } else if (src_attr.extend == CAIRO_EXTEND_REPEAT) { DFBRegion clip; clip.x1 = dst_x; clip.y1 = dst_y; clip.x2 = dst_x + width - 1; clip.y2 = dst_y + height - 1; D_DEBUG_AT (Cairo_DirectFB, "Running TileBlit().\n"); RUN_CLIPPED( dst, &clip, dst->dfbsurface->TileBlit (dst->dfbsurface, src->dfbsurface, &sr, dst_x, dst_y)); ret = CAIRO_STATUS_SUCCESS; } } else if (src_attr.extend == CAIRO_EXTEND_NONE && cairo_matrix_invert (m) == CAIRO_STATUS_SUCCESS) { DFBAccelerationMask accel; /* Yet I don't fully understand what these src_x/src_y mean. * It seems they are X11 specific, so I ignore them for now. */ src_x = src_y = 0; dst->dfbsurface->GetAccelerationMask (dst->dfbsurface, src->dfbsurface, &accel); if (m->xy != 0.0 || m->yx != 0.0) { if (accel & DFXL_TEXTRIANGLES) { DFBVertex v[4]; float w, h; float x1, y1, x2, y2; int i; w = MAX (src->width, 8); h = MAX (src->height, 8); x1 = src_x + src_attr.x_offset; y1 = src_y + src_attr.y_offset; x2 = src->width - x1; y2 = src->height - y1; v[0].x = x1; v[0].y = y1; v[0].s = x1/w; v[0].t = y1/h; v[1].x = x2; v[1].y = y1; v[1].s = x2/w; v[1].t = y1/h; v[2].x = x2; v[2].y = y2; v[2].s = x2/w; v[2].t = y2/h; v[3].x = x1; v[3].y = y2; v[3].s = x1/w; v[3].t = y2/h; for (i = 0; i < 4; i++) { TRANSFORM_POINT (m, v[i].x, v[i].y, v[i].x, v[i].y); v[i].z = 0; v[i].w = 1; } D_DEBUG_AT (Cairo_DirectFB, "Running TextureTriangles().\n"); RUN_CLIPPED (dst, NULL, dst->dfbsurface->TextureTriangles (dst->dfbsurface, src->dfbsurface, v, NULL, 4, DTTF_FAN)); ret = CAIRO_STATUS_SUCCESS; } } else { if (accel & DFXL_STRETCHBLIT || src_attr.filter == CAIRO_FILTER_NEAREST) { DFBRectangle sr, dr; double x1, y1, x2, y2; sr.x = src_x + src_attr.x_offset; sr.y = src_y + src_attr.y_offset; sr.w = src->width - sr.x; sr.h = src->height - sr.y; TRANSFORM_POINT (m, sr.x, sr.y, x1, y1); TRANSFORM_POINT (m, sr.x+sr.w, sr.y+sr.h, x2, y2); dr.x = _cairo_lround (x1); dr.y = _cairo_lround (y1); dr.w = _cairo_lround (x2-x1); dr.h = _cairo_lround (y2-y1); D_DEBUG_AT (Cairo_DirectFB, "Running StretchBlit().\n"); RUN_CLIPPED (dst, NULL, dst->dfbsurface->StretchBlit (dst->dfbsurface, src->dfbsurface, &sr, &dr)); ret = CAIRO_STATUS_SUCCESS; } } } _directfb_finish_composite (dst, src_pattern, &src->base, &src_attr); return ret; } #endif /* DFB_COMPOSITE */ #if DFB_RECTANGLES static cairo_int_status_t _cairo_directfb_surface_fill_rectangles (void *abstract_surface, cairo_operator_t op, const cairo_color_t *color, cairo_rectangle_int16_t *rects, int n_rects) { cairo_directfb_surface_t *dst = abstract_surface; DFBSurfaceDrawingFlags flags; DFBSurfaceBlendFunction sblend; DFBSurfaceBlendFunction dblend; DFBRectangle r[n_rects]; int i; D_DEBUG_AT (Cairo_DirectFB, "%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, &flags, NULL, &sblend, &dblend)) return CAIRO_INT_STATUS_UNSUPPORTED; dst->dfbsurface->SetDrawingFlags (dst->dfbsurface, flags); if (flags & DSDRAW_BLEND) { dst->dfbsurface->SetSrcBlendFunction (dst->dfbsurface, sblend); dst->dfbsurface->SetDstBlendFunction (dst->dfbsurface, dblend); } dst->dfbsurface->SetColor (dst->dfbsurface, color->red_short >> 8, color->green_short >> 8, color->blue_short >> 8, color->alpha_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; } RUN_CLIPPED (dst, NULL, dst->dfbsurface->FillRectangles (dst->dfbsurface, r, n_rects)); return CAIRO_STATUS_SUCCESS; } #endif #if DFB_COMPOSITE_TRAPEZOIDS static cairo_int_status_t _cairo_directfb_surface_composite_trapezoids (cairo_operator_t op, cairo_pattern_t *pattern, void *abstract_dst, cairo_antialias_t antialias, int src_x, int src_y, int dst_x, int dst_y, unsigned int width, unsigned int height, cairo_trapezoid_t *traps, int num_traps ) { cairo_directfb_surface_t *dst = abstract_dst; cairo_directfb_surface_t *src; cairo_surface_attributes_t src_attr; cairo_status_t ret; DFBAccelerationMask accel; D_DEBUG_AT (Cairo_DirectFB, "%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", __FUNCTION__, op, pattern, dst, antialias, src_x, src_y, dst_x, dst_y, width, height, traps, num_traps); if (antialias != CAIRO_ANTIALIAS_NONE) return CAIRO_INT_STATUS_UNSUPPORTED; /* Textures are not supported yet. */ if (pattern->type != CAIRO_PATTERN_TYPE_SOLID) return CAIRO_INT_STATUS_UNSUPPORTED; ret = _directfb_prepare_composite (dst, pattern, NULL, op, &src_x, &src_y, NULL, NULL, width, height, &src, &src_attr); if (ret) return ret; dst->dfbsurface->GetAccelerationMask (dst->dfbsurface, src->dfbsurface, &accel); ret = CAIRO_INT_STATUS_UNSUPPORTED; if (accel & DFXL_TEXTRIANGLES) { DFBVertex vertex[6*num_traps]; DFBVertex *v = &vertex[0]; int n; #define ADD_TRI(id, x1, y1, s1, t1, x2, y2, s2, t2, x3, y3, s3, t3) {\ const int p = (id)*3;\ v[p+0].x=(x1); v[p+0].y=(y1); v[p+0].z=0; v[p+0].w=1; v[p+0].s=(s1); v[p+0].t=(t1);\ v[p+1].x=(x2); v[p+1].y=(y2); v[p+1].z=0; v[p+1].w=1; v[p+1].s=(s2); v[p+1].t=(t2);\ v[p+2].x=(x3); v[p+2].y=(y3); v[p+2].z=0; v[p+2].w=1; v[p+2].s=(s3); v[p+2].t=(t3);\ } for (n = 0; num_traps; num_traps--) { float lx1, ly1, lx2, ly2; float rx1, ry1, rx2, ry2; /* XXX: Do we need to validate the trapezoid? */ lx1 = traps->left.p1.x/65536.0; ly1 = traps->left.p1.y/65536.0; lx2 = traps->left.p2.x/65536.0; ly2 = traps->left.p2.y/65536.0; rx1 = traps->right.p1.x/65536.0; ry1 = traps->right.p1.y/65536.0; rx2 = traps->right.p2.x/65536.0; ry2 = traps->right.p2.y/65536.0; if (traps->left.p1.y < traps->top) { float y = traps->top/65536.0; if (lx2 != lx1) lx1 = (y - ly1) * (lx2 - lx1) / (ly2 - ly1) + lx1; ly1 = y; } if (traps->left.p2.y > traps->bottom) { float y = traps->bottom/65536.0; if (lx2 != lx1) lx2 = (y - ly1) * (lx2 - lx1) / (ly2 - ly1) + lx1; ly2 = y; } if (traps->right.p1.y < traps->top) { float y = traps->top/65536.0; if (rx2 != rx1) rx1 = (y - ry1) * (rx2 - rx1) / (ry2 - ry1) + rx1; ry1 = y; } if (traps->right.p2.y > traps->bottom) { float y = traps->bottom/65536.0; if (rx2 != rx1) rx2 = (y - ry1) * (rx2 - rx1) / (ry2 - ry1) + rx1; ry2 = y; } if (lx1 == rx1 && ly1 == ry1) { ADD_TRI (0, lx2, ly2, 0, 0, lx1, ly1, 0, 0, rx2, ry2, 0, 0 ); v += 3; n += 3; } else if (lx2 == rx2 && ly2 == ry2) { ADD_TRI (0, lx1, ly1, 0, 0, lx2, ly2, 0, 0, rx1, ry1, 0, 0 ); v += 3; n += 3; } else { ADD_TRI (0, lx1, ly1, 0, 0, rx1, ry1, 0, 0, lx2, ly2, 0, 0); ADD_TRI (1, lx2, ly2, 0, 0, rx1, ry1, 0, 0, rx2, ry2, 0, 0); v += 6; n += 6; } traps++; } #undef ADD_TRI D_DEBUG_AT (Cairo_DirectFB, "Running TextureTriangles().\n"); RUN_CLIPPED (dst, NULL, dst->dfbsurface->TextureTriangles (dst->dfbsurface, src->dfbsurface, vertex, NULL, n, DTTF_LIST)); ret = CAIRO_STATUS_SUCCESS; } _directfb_finish_composite (dst, pattern, &src->base, &src_attr); return ret; } #endif /* DFB_COMPOSITE_TRAPEZOIDS */ static cairo_int_status_t _cairo_directfb_surface_set_clip_region (void *abstract_surface, pixman_region16_t *region) { cairo_directfb_surface_t *surface = abstract_surface; D_DEBUG_AT (Cairo_DirectFB, "%s( surface=%p, region=%p ).\n", __FUNCTION__, surface, region); if (region) { pixman_box16_t *boxes = pixman_region_rects (region); int n_boxes = pixman_region_num_rects (region); int i; if (surface->n_clips != n_boxes) { if( surface->clips ) free (surface->clips); surface->clips = malloc (n_boxes * sizeof(DFBRegion)); if (!surface->clips) { surface->n_clips = 0; return CAIRO_STATUS_NO_MEMORY; } surface->n_clips = n_boxes; } for (i = 0; i < n_boxes; i++) { surface->clips[i].x1 = boxes[i].x1; surface->clips[i].y1 = boxes[i].y1; surface->clips[i].x2 = boxes[i].x2; surface->clips[i].y2 = boxes[i].y2; } } else { if (surface->clips) { free (surface->clips); surface->clips = NULL; surface->n_clips = 0; } } return CAIRO_STATUS_SUCCESS; } static cairo_int_status_t _cairo_directfb_abstract_surface_get_extents (void *abstract_surface, cairo_rectangle_int16_t *rectangle) { cairo_directfb_surface_t *surface = abstract_surface; D_DEBUG_AT (Cairo_DirectFB, "%s( surface=%p, rectangle=%p ).\n", __FUNCTION__, surface, rectangle); if (rectangle) { rectangle->x = 0; rectangle->y = 0; rectangle->width = surface->width; rectangle->height = surface->height; } return CAIRO_STATUS_SUCCESS; } static cairo_status_t _cairo_directfb_surface_mark_dirty_rectangle (void *abstract_surface, int x, int y, int width, int height) { #if 0 cairo_directfb_surface_t *surface = abstract_surface; D_DEBUG_AT (Cairo_DirectFB, "%s( surface=%p, x=%d, y=%d, width=%d, height=%d ).\n", __FUNCTION__, surface, x, y, width, height); if( !surface->dirty_region ) surface->dirty_region = malloc(sizeof(DFBRegion)); if (!dirty_region) return CAIRO_STATUS_NO_MEMORY; #endif return CAIRO_STATUS_SUCCESS; } static cairo_status_t _cairo_directfb_surface_flush (void *abstract_surface) { #if 0 cairo_directfb_surface_t *surface = abstract_surface; D_DEBUG_AT (Cairo_DirectFB, "%s( surface=%p ).\n", __FUNCTION__, surface); if (surface->surface != surface->buffer) { surface->surface->SetClip (surface->surface, NULL); surface->surface->SetBlittingFlags (surface->surface, DSBLIT_NOFX); surface->surface->Blit (surface->surface, surface->buffer, NULL, 0, 0); } #endif return CAIRO_STATUS_SUCCESS; } #if DFB_SHOW_GLYPHS static cairo_directfb_font_cache_t* _directfb_allocate_font_cache (IDirectFB *dfb, int width, int height) { cairo_directfb_font_cache_t *cache; cache = calloc (1, sizeof(cairo_directfb_font_cache_t)); if (!cache) return NULL; cache->dfbsurface = _directfb_buffer_surface_create( dfb, DSPF_A8, width, height); if (!cache->dfbsurface) { free (cache); return NULL; } //dfb->AddRef (dfb); cache->dfb = dfb; cache->width = width; cache->height = height; return cache; } static void _directfb_destroy_font_cache (cairo_directfb_font_cache_t *cache) { cache->dfbsurface->Release (cache->dfbsurface); free (cache); } static cairo_status_t _directfb_acquire_font_cache (cairo_directfb_surface_t *surface, cairo_scaled_font_t *scaled_font, const cairo_glyph_t *glyphs, int num_glyphs, cairo_directfb_font_cache_t **ret_cache, DFBRectangle *rects, DFBPoint *points, int *ret_num ) { cairo_status_t ret; cairo_scaled_glyph_t *chars[num_glyphs]; int num_chars = 0; cairo_directfb_font_cache_t *cache = NULL; int n = 0; int x = 0; int y = 0; int w = 8; int h = 8; int i; if (scaled_font->surface_private) { cache = scaled_font->surface_private; x = cache->x; y = cache->y; } for (i = 0; i < num_glyphs; i++) { cairo_scaled_glyph_t *scaled_glyph; cairo_image_surface_t *img; ret = _cairo_scaled_glyph_lookup (scaled_font, glyphs[i].index, CAIRO_SCALED_GLYPH_INFO_SURFACE, &scaled_glyph); if (ret) return ret; img = scaled_glyph->surface; switch (img->format) { case CAIRO_FORMAT_A1: case CAIRO_FORMAT_A8: break; default: D_DEBUG_AT (Cairo_DirectFB, "Unsupported font format %d!\n", img->format); 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); if (points[n].x >= surface->width || points[n].y >= surface->height || points[n].x+img->width <= 0 || points[n].y+img->height <= 0) continue; if (!scaled_glyph->surface_private) { DFBRectangle *rect; if (x+img->width > 2048) { x = 0; y = h; h = 8; } rects[n].x = x; rects[n].y = y; rects[n].w = img->width; rects[n].h = img->height; x += img->width; h = MAX (h, img->height); w = MAX (w, x); /* Remember glyph location */ rect = malloc (sizeof(DFBRectangle)); if (!rect) return 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);*/ } 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);*/ } n++; } if (!n) return CAIRO_INT_STATUS_NOTHING_TO_DO; h += y; if (cache) { if (cache->width < w || cache->height < h) { cairo_directfb_font_cache_t *new_cache; w = MAX (w, cache->width); h = MAX (h, cache->height); D_DEBUG_AT (Cairo_DirectFB, "Reallocating font cache (%dx%d).\n", w, h); new_cache = _directfb_allocate_font_cache (surface->dfb, w, h); if (!new_cache) return CAIRO_STATUS_NO_MEMORY; new_cache->dfbsurface->Blit (new_cache->dfbsurface, cache->dfbsurface, NULL, 0, 0); _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); cache = _directfb_allocate_font_cache (surface->dfb, w, h); if (!cache) return CAIRO_STATUS_NO_MEMORY; scaled_font->surface_backend = &cairo_directfb_surface_backend; scaled_font->surface_private = cache; } if (num_chars) { unsigned char *data; int pitch; if (cache->dfbsurface->Lock (cache->dfbsurface, DSLF_WRITE, (void *)&data, &pitch)) return CAIRO_STATUS_NO_MEMORY; 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 + rect->y*pitch + rect->x; unsigned char *src = img->data; if (img->format == CAIRO_FORMAT_A1) { int j; for (h = rect->h; h; h--) { for (j = 0; j < rect->w; j++) dst[j] = (src[j>>3] & (1 << (j&7))) ? 0xff : 0x00; dst += pitch; src += img->stride; } } else { for (h = rect->h; h; h--) { direct_memcpy (dst, src, rect->w); dst += pitch; src += img->stride; } } } cache->dfbsurface->Unlock (cache->dfbsurface); } cache->x = x; cache->y = y; *ret_cache = cache; *ret_num = n; return CAIRO_STATUS_SUCCESS; } static void _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, "%s( scaled_font=%p ).\n", __FUNCTION__, scaled_font); if (cache) { _directfb_destroy_font_cache (cache); scaled_font->surface_private = NULL; } } 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, "%s( scaled_glyph=%p, scaled_font=%p ).\n", __FUNCTION__, scaled_glyph, scaled_font); if (scaled_glyph->surface_private) { free (scaled_glyph->surface_private); scaled_glyph->surface_private = NULL; } } static cairo_int_status_t _cairo_directfb_surface_show_glyphs ( void *abstract_dst, cairo_operator_t op, cairo_pattern_t *pattern, cairo_glyph_t *glyphs, int num_glyphs, cairo_scaled_font_t *scaled_font) { cairo_directfb_surface_t *dst = abstract_dst; cairo_directfb_font_cache_t *cache; cairo_status_t ret; DFBSurfaceBlittingFlags flags; DFBSurfaceBlendFunction sblend; DFBSurfaceBlendFunction dblend; DFBColor color; DFBRectangle rects[num_glyphs]; DFBPoint points[num_glyphs]; int num; D_DEBUG_AT (Cairo_DirectFB, "%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); if (pattern->type != CAIRO_PATTERN_TYPE_SOLID) return CAIRO_INT_STATUS_UNSUPPORTED; if (_directfb_get_operator (op, NULL, &flags, &sblend, &dblend) || sblend == DSBF_DESTALPHA || sblend == DSBF_INVDESTALPHA) return CAIRO_INT_STATUS_UNSUPPORTED; ret = _directfb_acquire_font_cache (dst, scaled_font, glyphs, num_glyphs, &cache, &rects[0], &points[0], &num); if (ret) { if (ret == CAIRO_INT_STATUS_NOTHING_TO_DO) ret = CAIRO_STATUS_SUCCESS; return ret; } color.a = ((cairo_solid_pattern_t *)pattern)->color.alpha_short >> 8; color.r = ((cairo_solid_pattern_t *)pattern)->color.red_short >> 8; color.g = ((cairo_solid_pattern_t *)pattern)->color.green_short >> 8; color.b = ((cairo_solid_pattern_t *)pattern)->color.blue_short >> 8; flags |= DSBLIT_BLEND_ALPHACHANNEL | DSBLIT_COLORIZE; if (color.a != 0xff) flags |= DSBLIT_BLEND_COLORALPHA; if (sblend == DSBF_ONE) { sblend = DSBF_SRCALPHA; if (dblend == DSBF_ZERO) dblend = DSBF_INVSRCALPHA; } dst->dfbsurface->SetBlittingFlags (dst->dfbsurface, flags); dst->dfbsurface->SetSrcBlendFunction (dst->dfbsurface, sblend); 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"); RUN_CLIPPED (dst, NULL, dst->dfbsurface->BatchBlit (dst->dfbsurface, cache->dfbsurface, rects, points, num)); return CAIRO_STATUS_SUCCESS; } #endif /* DFB_SHOW_GLYPHS */ static cairo_surface_backend_t cairo_directfb_surface_backend = { CAIRO_SURFACE_TYPE_DIRECTFB, /*type*/ _cairo_directfb_surface_create_similar,/*create_similar*/ _cairo_directfb_surface_finish, /*finish*/ _cairo_directfb_surface_acquire_source_image,/*acquire_source_image*/ _cairo_directfb_surface_release_source_image,/*release_source_image*/ _cairo_directfb_surface_acquire_dest_image,/*acquire_dest_image*/ _cairo_directfb_surface_release_dest_image,/*release_dest_image*/ _cairo_directfb_surface_clone_similar,/*clone_similar*/ #if DFB_COMPOSITE _cairo_directfb_surface_composite,/*composite*/ #else NULL,/*composite*/ #endif #if DFB_RECTANGLES _cairo_directfb_surface_fill_rectangles,/*fill_rectangles*/ #else NULL,/*fill_rectangles*/ #endif #if DFB_COMPOSITE_TRAPEZOIDS _cairo_directfb_surface_composite_trapezoids,/*composite_trapezoids*/ #else NULL,/*composite_trapezoids*/ #endif NULL, /* copy_page */ NULL, /* show_page */ _cairo_directfb_surface_set_clip_region,/*set_clip_region*/ NULL, /* intersect_clip_path */ _cairo_directfb_abstract_surface_get_extents,/*get_extents*/ NULL, /* old_show_glyphs */ NULL, /* get_font_options */ _cairo_directfb_surface_flush,/*flush*/ _cairo_directfb_surface_mark_dirty_rectangle,/*mark_dirty_rectangle*/ #if DFB_SHOW_GLYPHS _cairo_directfb_surface_scaled_font_fini,/*scaled_font_fini*/ _cairo_directfb_surface_scaled_glyph_fini,/*scaled_glyph_fini*/ #else NULL, NULL, #endif NULL, /* paint */ NULL, /* mask */ NULL, /* stroke */ NULL, /* fill */ #if DFB_SHOW_GLYPHS _cairo_directfb_surface_show_glyphs,/*show_glyphs*/ #else NULL, /* show_glyphs */ #endif NULL /* snapshot */ }; static void cairo_directfb_surface_backend_init (IDirectFB *dfb) { DFBGraphicsDeviceDescription dsc; static int done = 0; if (done) return; dfb->GetDeviceDescription (dfb, &dsc); #if DFB_COMPOSITE 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; #endif #if DFB_SHOW_GLYPHS if (!(dsc.acceleration_mask & DFXL_BLIT) || !(dsc.blitting_flags & DSBLIT_COLORIZE) || !(dsc.blitting_flags & DSBLIT_BLEND_ALPHACHANNEL)) { cairo_directfb_surface_backend.scaled_font_fini = NULL; cairo_directfb_surface_backend.scaled_glyph_fini = NULL; cairo_directfb_surface_backend.show_glyphs = NULL; } #endif done = 1; } cairo_surface_t * cairo_directfb_surface_create (IDirectFB *dfb, IDirectFBSurface *dfbsurface) { DFBSurfacePixelFormat format; cairo_directfb_surface_t *surface; assert(dfb); assert(dfb); cairo_directfb_surface_backend_init (dfb); surface = calloc (1, sizeof(cairo_directfb_surface_t)); if (!surface) return NULL; dfbsurface->GetPixelFormat (dfbsurface, &format); _cairo_surface_init (&surface->base, &cairo_directfb_surface_backend, _directfb_format_to_content(format)); surface->owner = FALSE; surface->dfb = dfb; surface->dfbsurface = dfbsurface; dfbsurface->GetSize (dfbsurface,&surface->width, &surface->height); surface->format = directfb_to_cairo_format(format); return &surface->base; }