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; }