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/* cairo - a vector graphics library with display and print output
*
* Copyright © 2012 Intel Corporation
*
* 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., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, 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 Chris Wilson
*
* Contributor(s):
* Chris Wilson <chris@chris-wilson.co.uk>
*/
#include "cairoint.h"
#include "cairo-directfb.h"
#include "cairo-clip-private.h"
#include "cairo-compositor-private.h"
#include "cairo-default-context-private.h"
#include "cairo-error-private.h"
#include "cairo-image-surface-inline.h"
#include "cairo-pattern-private.h"
#include "cairo-surface-backend-private.h"
#include "cairo-surface-fallback-private.h"
#include <pixman.h>
#include <directfb.h>
#include <direct/types.h>
#include <direct/debug.h>
#include <direct/memcpy.h>
#include <direct/util.h>
slim_hidden_proto(cairo_directfb_surface_create);
typedef struct _cairo_dfb_surface {
cairo_image_surface_t image;
IDirectFB *dfb;
IDirectFBSurface *dfb_surface;
unsigned blit_premultiplied : 1;
} cairo_dfb_surface_t;
static cairo_content_t
_directfb_format_to_content (DFBSurfacePixelFormat format)
{
cairo_content_t content = 0;
if (DFB_PIXELFORMAT_HAS_ALPHA (format))
content |= CAIRO_CONTENT_ALPHA;
if (DFB_COLOR_BITS_PER_PIXEL (format))
content |= CAIRO_CONTENT_COLOR_ALPHA;
assert(content);
return content;
}
static inline pixman_format_code_t
_directfb_to_pixman_format (DFBSurfacePixelFormat format)
{
switch (format) {
case DSPF_UNKNOWN: return 0;
case DSPF_ARGB1555: return PIXMAN_a1r5g5b5;
case DSPF_RGB16: return PIXMAN_r5g6b5;
case DSPF_RGB24: return PIXMAN_r8g8b8;
case DSPF_RGB32: return PIXMAN_x8r8g8b8;
case DSPF_ARGB: return PIXMAN_a8r8g8b8;
case DSPF_A8: return PIXMAN_a8;
case DSPF_YUY2: return PIXMAN_yuy2;
case DSPF_RGB332: return PIXMAN_r3g3b2;
case DSPF_UYVY: return 0;
case DSPF_I420: return 0;
case DSPF_YV12: return PIXMAN_yv12;
case DSPF_LUT8: return 0;
case DSPF_ALUT44: return 0;
case DSPF_AiRGB: return 0;
case DSPF_A1: return 0; /* bit reversed, oops */
case DSPF_NV12: return 0;
case DSPF_NV16: return 0;
case DSPF_ARGB2554: return 0;
case DSPF_ARGB4444: return PIXMAN_a4r4g4b4;
case DSPF_NV21: return 0;
case DSPF_AYUV: return 0;
case DSPF_A4: return PIXMAN_a4;
case DSPF_ARGB1666: return 0;
case DSPF_ARGB6666: return 0;
case DSPF_RGB18: return 0;
case DSPF_LUT2: return 0;
case DSPF_RGB444: return PIXMAN_x4r4g4b4;
case DSPF_RGB555: return PIXMAN_x1r5g5b5;
#if DFB_NUM_PIXELFORMATS >= 29
case DSPF_BGR555: return PIXMAN_x1b5g5r5;
#endif
}
return 0;
}
static cairo_surface_t *
_cairo_dfb_surface_create_similar (void *abstract_src,
cairo_content_t content,
int width,
int height)
{
cairo_dfb_surface_t *other = abstract_src;
DFBSurfacePixelFormat format;
IDirectFBSurface *buffer;
DFBSurfaceDescription dsc;
cairo_surface_t *surface;
if (width <= 0 || height <= 0)
return _cairo_image_surface_create_with_content (content, width, height);
switch (content) {
default:
ASSERT_NOT_REACHED;
case CAIRO_CONTENT_COLOR_ALPHA:
format = DSPF_ARGB;
break;
case CAIRO_CONTENT_COLOR:
format = DSPF_RGB32;
break;
case CAIRO_CONTENT_ALPHA:
format = DSPF_A8;
break;
}
dsc.flags = DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT;
dsc.caps = DSCAPS_PREMULTIPLIED;
dsc.width = width;
dsc.height = height;
dsc.pixelformat = format;
if (other->dfb->CreateSurface (other->dfb, &dsc, &buffer))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_DEVICE_ERROR));
surface = cairo_directfb_surface_create (other->dfb, buffer);
buffer->Release (buffer);
return surface;
}
static cairo_status_t
_cairo_dfb_surface_finish (void *abstract_surface)
{
cairo_dfb_surface_t *surface = abstract_surface;
surface->dfb_surface->Release (surface->dfb_surface);
return _cairo_image_surface_finish (abstract_surface);
}
static cairo_image_surface_t *
_cairo_dfb_surface_map_to_image (void *abstract_surface,
const cairo_rectangle_int_t *extents)
{
cairo_dfb_surface_t *surface = abstract_surface;
if (surface->image.pixman_image == NULL) {
IDirectFBSurface *buffer = surface->dfb_surface;
pixman_image_t *image;
void *data;
int pitch;
if (buffer->Lock (buffer, DSLF_READ | DSLF_WRITE, &data, &pitch))
return _cairo_image_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
image = pixman_image_create_bits (surface->image.pixman_format,
surface->image.width,
surface->image.height,
data, pitch);
if (image == NULL) {
buffer->Unlock (buffer);
return _cairo_image_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
}
_cairo_image_surface_init (&surface->image, image, surface->image.pixman_format);
}
return _cairo_image_surface_map_to_image (&surface->image.base, extents);
}
static cairo_int_status_t
_cairo_dfb_surface_unmap_image (void *abstract_surface,
cairo_image_surface_t *image)
{
cairo_dfb_surface_t *surface = abstract_surface;
return _cairo_image_surface_unmap_image (&surface->image.base, image);
}
static cairo_status_t
_cairo_dfb_surface_flush (void *abstract_surface,
unsigned flags)
{
cairo_dfb_surface_t *surface = abstract_surface;
if (flags)
return CAIRO_STATUS_SUCCESS;
if (surface->image.pixman_image) {
surface->dfb_surface->Unlock (surface->dfb_surface);
pixman_image_unref (surface->image.pixman_image);
surface->image.pixman_image = NULL;
surface->image.data = NULL;
}
return CAIRO_STATUS_SUCCESS;
}
#if 0
static inline DFBSurfacePixelFormat
_directfb_from_pixman_format (pixman_format_code_t format)
{
switch ((int) format) {
case PIXMAN_a1r5g5b5: return DSPF_ARGB1555;
case PIXMAN_r5g6b5: return DSPF_RGB16;
case PIXMAN_r8g8b8: return DSPF_RGB24;
case PIXMAN_x8r8g8b8: return DSPF_RGB32;
case PIXMAN_a8r8g8b8: return DSPF_ARGB;
case PIXMAN_a8: return DSPF_A8;
case PIXMAN_yuy2: return DSPF_YUY2;
case PIXMAN_r3g3b2: return DSPF_RGB332;
case PIXMAN_yv12: return DSPF_YV12;
case PIXMAN_a1: return DSPF_A1; /* bit reversed, oops */
case PIXMAN_a4r4g4b4: return DSPF_ARGB4444;
case PIXMAN_a4: return DSPF_A4;
case PIXMAN_x4r4g4b4: return DSPF_RGB444;
case PIXMAN_x1r5g5b5: return DSPF_RGB555;
#if DFB_NUM_PIXELFORMATS >= 29
case PIXMAN_x1b5g5r5: return DSPF_BGR555;
#endif
default: return 0;
}
}
static cairo_bool_t
_directfb_get_operator (cairo_operator_t operator,
DFBSurfaceBlendFunction *ret_srcblend,
DFBSurfaceBlendFunction *ret_dstblend)
{
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:
srcblend = DSBF_ONE;
dstblend = DSBF_ZERO;
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:
/* XXX This does not work. */
#if 0
srcblend = DSBF_SRCALPHASAT;
dstblend = DSBF_ONE;
break;
#endif
case CAIRO_OPERATOR_MULTIPLY:
case CAIRO_OPERATOR_SCREEN:
case CAIRO_OPERATOR_OVERLAY:
case CAIRO_OPERATOR_DARKEN:
case CAIRO_OPERATOR_LIGHTEN:
case CAIRO_OPERATOR_COLOR_DODGE:
case CAIRO_OPERATOR_COLOR_BURN:
case CAIRO_OPERATOR_HARD_LIGHT:
case CAIRO_OPERATOR_SOFT_LIGHT:
case CAIRO_OPERATOR_DIFFERENCE:
case CAIRO_OPERATOR_EXCLUSION:
case CAIRO_OPERATOR_HSL_HUE:
case CAIRO_OPERATOR_HSL_SATURATION:
case CAIRO_OPERATOR_HSL_COLOR:
case CAIRO_OPERATOR_HSL_LUMINOSITY:
default:
return FALSE;
}
*ret_srcblend = srcblend;
*ret_dstblend = dstblend;
return TRUE;
}
#define RUN_CLIPPED(surface, clip_region, clip, func) {\
if ((clip_region) != NULL) {\
int n_clips = cairo_region_num_rectangles (clip_region), n; \
for (n = 0; n < n_clips; n++) {\
if (clip) {\
DFBRegion reg, *cli = (clip); \
cairo_rectangle_int_t rect; \
cairo_region_get_rectangle (clip_region, n, &rect); \
reg.x1 = rect.x; \
reg.y1 = rect.y; \
reg.x2 = rect.x + rect.width - 1; \
reg.y2 = rect.y + rect.height - 1; \
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, &reg);\
} else {\
DFBRegion reg; \
cairo_rectangle_int_t rect; \
cairo_region_get_rectangle (clip_region, n, &rect); \
reg.x1 = rect.x; \
reg.y1 = rect.y; \
reg.x2 = rect.x + rect.width - 1; \
reg.y2 = rect.y + rect.height - 1; \
(surface)->dfbsurface->SetClip ((surface)->dfbsurface, &reg); \
}\
func;\
}\
} else {\
(surface)->dfbsurface->SetClip ((surface)->dfbsurface, clip);\
func;\
}\
}
static cairo_int_status_t
_cairo_dfb_surface_fill_rectangles (void *abstract_surface,
cairo_operator_t op,
const cairo_color_t *color,
cairo_rectangle_int_t *rects,
int n_rects)
{
cairo_dfb_surface_t *dst = abstract_surface;
DFBSurfaceDrawingFlags flags;
DFBSurfaceBlendFunction sblend;
DFBSurfaceBlendFunction dblend;
DFBRectangle r[n_rects];
int i;
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 (! dst->supported_destination)
return CAIRO_INT_STATUS_UNSUPPORTED;
if (! _directfb_get_operator (op, &sblend, &dblend))
return CAIRO_INT_STATUS_UNSUPPORTED;
if (CAIRO_COLOR_IS_OPAQUE (color)) {
if (sblend == DSBF_SRCALPHA)
sblend = DSBF_ONE;
else if (sblend == DSBF_INVSRCALPHA)
sblend = DSBF_ZERO;
if (dblend == DSBF_SRCALPHA)
dblend = DSBF_ONE;
else if (dblend == DSBF_INVSRCALPHA)
dblend = DSBF_ZERO;
}
if ((dst->base.content & CAIRO_CONTENT_ALPHA) == 0) {
if (sblend == DSBF_DESTALPHA)
sblend = DSBF_ONE;
else if (sblend == DSBF_INVDESTALPHA)
sblend = DSBF_ZERO;
if (dblend == DSBF_DESTALPHA)
dblend = DSBF_ONE;
else if (dblend == DSBF_INVDESTALPHA)
dblend = DSBF_ZERO;
}
flags = (sblend == DSBF_ONE && dblend == DSBF_ZERO) ? DSDRAW_NOFX : DSDRAW_BLEND;
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, NULL,
dst->dfbsurface->FillRectangles (dst->dfbsurface, r, n_rects));
return CAIRO_STATUS_SUCCESS;
}
#endif
static cairo_surface_backend_t
_cairo_dfb_surface_backend = {
CAIRO_SURFACE_TYPE_DIRECTFB, /*type*/
_cairo_dfb_surface_finish, /*finish*/
_cairo_default_context_create,
_cairo_dfb_surface_create_similar,/*create_similar*/
NULL, /* create similar image */
_cairo_dfb_surface_map_to_image,
_cairo_dfb_surface_unmap_image,
_cairo_surface_default_source,
_cairo_surface_default_acquire_source_image,
_cairo_surface_default_release_source_image,
NULL,
NULL, /* copy_page */
NULL, /* show_page */
_cairo_image_surface_get_extents,
_cairo_image_surface_get_font_options,
_cairo_dfb_surface_flush,
NULL, /* mark_dirty_rectangle */
_cairo_surface_fallback_paint,
_cairo_surface_fallback_mask,
_cairo_surface_fallback_stroke,
_cairo_surface_fallback_fill,
NULL, /* fill-stroke */
_cairo_surface_fallback_glyphs,
};
cairo_surface_t *
cairo_directfb_surface_create (IDirectFB *dfb, IDirectFBSurface *dfbsurface)
{
cairo_dfb_surface_t *surface;
DFBSurfacePixelFormat format;
DFBSurfaceCapabilities caps;
pixman_format_code_t pixman_format;
int width, height;
D_ASSERT (dfb != NULL);
D_ASSERT (dfbsurface != NULL);
dfbsurface->GetPixelFormat (dfbsurface, &format);
dfbsurface->GetSize (dfbsurface, &width, &height);
pixman_format = _directfb_to_pixman_format (format);
if (! pixman_format_supported_destination (pixman_format))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT));
surface = calloc (1, sizeof (cairo_dfb_surface_t));
if (surface == NULL)
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
/* XXX dfb -> device */
_cairo_surface_init (&surface->image.base,
&_cairo_dfb_surface_backend,
NULL, /* device */
_directfb_format_to_content (format));
surface->image.pixman_format = pixman_format;
surface->image.format = _cairo_format_from_pixman_format (pixman_format);
surface->image.width = width;
surface->image.height = height;
surface->image.depth = PIXMAN_FORMAT_DEPTH(pixman_format);
surface->dfb = dfb;
surface->dfb_surface = dfbsurface;
dfbsurface->AddRef (dfbsurface);
dfbsurface->GetCapabilities (dfbsurface, &caps);
if (caps & DSCAPS_PREMULTIPLIED)
surface->blit_premultiplied = TRUE;
return &surface->image.base;
}
slim_hidden_def(cairo_directfb_surface_create);