static cairo_status_t
alpha_blend_boxes (cairo_win32_display_surface_t *dst,
const cairo_pattern_t *source,
cairo_boxes_t *boxes,
uint8_t alpha)
{
const cairo_surface_pattern_t *pattern;
struct copy_box cb;
cairo_surface_t *surface;
cairo_win32_display_surface_t *src;
cairo_status_t status;
TRACE ((stderr, "%s\n", __FUNCTION__));
if (source->type != CAIRO_PATTERN_TYPE_SURFACE)
return CAIRO_INT_STATUS_UNSUPPORTED;
pattern = (const cairo_surface_pattern_t *) source;
surface = _cairo_surface_get_source (pattern->surface, &cb.limit);
if (surface->type == CAIRO_SURFACE_TYPE_IMAGE) {
surface = to_image_surface(surface)->parent;
if (surface == NULL)
return CAIRO_INT_STATUS_UNSUPPORTED;
}
if (surface->type != CAIRO_SURFACE_TYPE_WIN32)
return CAIRO_INT_STATUS_UNSUPPORTED;
if (! _cairo_matrix_is_integer_translation (&source->matrix,
&cb.tx, &cb.ty))
return CAIRO_INT_STATUS_UNSUPPORTED;
src = to_win32_display_surface (surface);
cb.dst = dst->win32.dc;
cb.src = src->win32.dc;
/* First check that the data is entirely within the image */
if (! _cairo_boxes_for_each_box (boxes, source_contains_box, &cb))
return CAIRO_INT_STATUS_UNSUPPORTED;
status = __cairo_surface_flush (&src->win32.base, 0);
if (status)
return status;
cb.bf.BlendOp = AC_SRC_OVER;
cb.bf.BlendFlags = 0;
cb.bf.SourceConstantAlpha = alpha;
cb.bf.AlphaFormat = (src->win32.format == CAIRO_FORMAT_ARGB32) ? AC_SRC_ALPHA : 0;
cb.alpha_blend = to_win32_device(dst->win32.base.device)->alpha_blend;
cb.tx += cb.limit.x;
cb.ty += cb.limit.y;
status = CAIRO_STATUS_SUCCESS;
if (! _cairo_boxes_for_each_box (boxes, alpha_box, &cb))
status = CAIRO_INT_STATUS_UNSUPPORTED;
_cairo_win32_display_surface_discard_fallback (dst);
return status;
}
static cairo_status_t
copy_boxes (cairo_win32_display_surface_t *dst,
const cairo_pattern_t *source,
cairo_boxes_t *boxes)
{
const cairo_surface_pattern_t *pattern;
struct copy_box cb;
cairo_surface_t *surface;
cairo_status_t status;
cairo_win32_surface_t *src;
TRACE ((stderr, "%s\n", __FUNCTION__));
pattern = (const cairo_surface_pattern_t *) source;
surface = _cairo_surface_get_source (pattern->surface, &cb.limit);
if (surface->type == CAIRO_SURFACE_TYPE_IMAGE) {
surface = to_image_surface(surface)->parent;
if (surface == NULL)
return CAIRO_INT_STATUS_UNSUPPORTED;
}
if (surface->type != CAIRO_SURFACE_TYPE_WIN32)
return CAIRO_INT_STATUS_UNSUPPORTED;
if (! _cairo_matrix_is_integer_translation (&source->matrix,
&cb.tx, &cb.ty))
return CAIRO_INT_STATUS_UNSUPPORTED;
src = to_win32_surface(surface);
if (src->format != dst->win32.format &&
!(src->format == CAIRO_FORMAT_ARGB32 && dst->win32.format == CAIRO_FORMAT_RGB24))
{
/* forbid copy different surfaces unless it is from argb32 to
* rgb (dropping alpha) */
return CAIRO_INT_STATUS_UNSUPPORTED;
}
cb.dst = dst->win32.dc;
cb.src = src->dc;
/* First check that the data is entirely within the image */
if (! _cairo_boxes_for_each_box (boxes, source_contains_box, &cb))
return CAIRO_INT_STATUS_UNSUPPORTED;
status = __cairo_surface_flush (surface, 0);
if (status)
return status;
cb.tx += cb.limit.x;
cb.ty += cb.limit.y;
status = CAIRO_STATUS_SUCCESS;
if (! _cairo_boxes_for_each_box (boxes, copy_box, &cb))
status = CAIRO_INT_STATUS_UNSUPPORTED;
_cairo_win32_display_surface_discard_fallback (dst);
return status;
}
static cairo_int_status_t
fill_boxes (cairo_win32_display_surface_t *dst,
const cairo_pattern_t *src,
cairo_boxes_t *boxes)
{
const cairo_color_t *color = &((cairo_solid_pattern_t *) src)->color;
cairo_status_t status = CAIRO_STATUS_SUCCESS;
struct fill_box fb;
TRACE ((stderr, "%s\n", __FUNCTION__));
if ((dst->win32.flags & CAIRO_WIN32_SURFACE_CAN_RGB_BRUSH) == 0)
return CAIRO_INT_STATUS_UNSUPPORTED;
fb.dc = dst->win32.dc;
fb.brush = CreateSolidBrush (color_to_rgb(color));
if (!fb.brush)
return _cairo_win32_print_gdi_error (__FUNCTION__);
if (! _cairo_boxes_for_each_box (boxes, fill_box, &fb))
status = CAIRO_INT_STATUS_UNSUPPORTED;
DeleteObject (fb.brush);
return status;
}
static cairo_status_t
upload_boxes (cairo_win32_display_surface_t *dst,
const cairo_pattern_t *source,
cairo_boxes_t *boxes)
{
const cairo_surface_pattern_t *pattern;
struct upload_box cb;
cairo_surface_t *surface;
cairo_image_surface_t *image;
void *image_extra;
cairo_status_t status;
TRACE ((stderr, "%s\n", __FUNCTION__));
if ((dst->win32.flags & CAIRO_WIN32_SURFACE_CAN_STRETCHDIB) == 0)
return CAIRO_INT_STATUS_UNSUPPORTED;
if (! _cairo_matrix_is_integer_translation (&source->matrix,
&cb.tx, &cb.ty))
return CAIRO_INT_STATUS_UNSUPPORTED;
pattern = (const cairo_surface_pattern_t *) source;
surface = _cairo_surface_get_source (pattern->surface, &cb.limit);
/* First check that the data is entirely within the image */
if (! _cairo_boxes_for_each_box (boxes, source_contains_box, &cb))
return CAIRO_INT_STATUS_UNSUPPORTED;
if (surface->type != CAIRO_SURFACE_TYPE_IMAGE) {
status = _cairo_surface_acquire_source_image (surface,
&image, &image_extra);
if (status)
return status;
} else
image = to_image_surface(surface);
status = CAIRO_INT_STATUS_UNSUPPORTED;
if (!(image->format == CAIRO_FORMAT_ARGB32 ||
image->format == CAIRO_FORMAT_RGB24))
goto err;
if (image->stride != 4*image->width)
goto err;
cb.dst = dst->win32.dc;
cb.data = image->data;
cb.bi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
cb.bi.bmiHeader.biWidth = image->width;
cb.bi.bmiHeader.biHeight = -image->height;
cb.bi.bmiHeader.biSizeImage = 0;
cb.bi.bmiHeader.biXPelsPerMeter = PELS_72DPI;
cb.bi.bmiHeader.biYPelsPerMeter = PELS_72DPI;
cb.bi.bmiHeader.biPlanes = 1;
cb.bi.bmiHeader.biBitCount = 32;
cb.bi.bmiHeader.biCompression = BI_RGB;
cb.bi.bmiHeader.biClrUsed = 0;
cb.bi.bmiHeader.biClrImportant = 0;
cb.tx += cb.limit.x;
cb.ty += cb.limit.y;
status = CAIRO_STATUS_SUCCESS;
if (! _cairo_boxes_for_each_box (boxes, upload_box, &cb))
status = CAIRO_INT_STATUS_UNSUPPORTED;
_cairo_win32_display_surface_discard_fallback (dst);
err:
if (&image->base != surface)
_cairo_surface_release_source_image (surface, image, image_extra);
return status;
}
