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cairo/src/cairo-directfb-surface.c
Chris Wilson 02e3b6bc80 directfb: Tweak, tweak, tweak. 
A couple of mistakes, such as inverting the logic as to when to flush
damage back from the shadow, meant that nothing happened when drawing to
the directfb surface.

Again still only compile tested.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2012-03-22 14:27:31 +00:00

539 lines
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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-private.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_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_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_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, extents);
}
static cairo_int_status_t
_cairo_dfb_surface_unmap_image (void *abstract_surface,
cairo_image_surface_t *image)
{
return CAIRO_INT_STATUS_SUCCESS;
}
static cairo_status_t
_cairo_dfb_surface_flush (void *abstract_surface)
{
cairo_dfb_surface_t *surface = abstract_surface;
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);
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