diff options
Diffstat (limited to 'gfx/cairo/win32-ddb-dib.patch')
| -rw-r--r-- | gfx/cairo/win32-ddb-dib.patch | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/gfx/cairo/win32-ddb-dib.patch b/gfx/cairo/win32-ddb-dib.patch deleted file mode 100644 index a520d6e10..000000000 --- a/gfx/cairo/win32-ddb-dib.patch +++ /dev/null @@ -1,181 +0,0 @@ -b=455513; add optional flag to allow converting a DDB to a DIB internally, if the surface is every used as a source; r=jmuizelaar - -If a DDB is used as a source for an operation that can't be handled -natively by GDI, we end up needing to take a really slow path (creating a -temporary surface for acquire_source) for each operation. If we convert -the DDB to a DIB, we then end up having a real image buffer and can hand -things off to pixman directly. - -This isn't the default mode because I'm not sure if there are cases where a -DDB is explicitly needed (e.g. for printing), and it would change -current cairo behaviour. It might become the default at some point in the -future. - -diff --git a/gfx/cairo/cairo/src/cairo-win32-private.h b/gfx/cairo/cairo/src/cairo-win32-private.h ---- a/gfx/cairo/cairo/src/cairo-win32-private.h -+++ b/gfx/cairo/cairo/src/cairo-win32-private.h -@@ -117,6 +117,9 @@ - - /* Whether we can use the CHECKJPEGFORMAT escape function */ - CAIRO_WIN32_SURFACE_CAN_CHECK_PNG = (1<<8), -+ -+ /* if this DDB surface can be converted to a DIB if necessary */ -+ CAIRO_WIN32_SURFACE_CAN_CONVERT_TO_DIB = (1<<9), - }; - - cairo_status_t -diff --git a/gfx/cairo/cairo/src/cairo-win32-surface.c b/gfx/cairo/cairo/src/cairo-win32-surface.c ---- a/gfx/cairo/cairo/src/cairo-win32-surface.c -+++ b/gfx/cairo/cairo/src/cairo-win32-surface.c -@@ -560,6 +560,56 @@ - return CAIRO_STATUS_SUCCESS; - } - -+static void -+_cairo_win32_convert_ddb_to_dib (cairo_win32_surface_t *surface) -+{ -+ cairo_win32_surface_t *new_surface; -+ int width = surface->extents.width; -+ int height = surface->extents.height; -+ -+ BOOL ok; -+ HBITMAP oldbitmap; -+ -+ new_surface = (cairo_win32_surface_t*) -+ _cairo_win32_surface_create_for_dc (surface->dc, -+ surface->format, -+ width, -+ height); -+ -+ if (new_surface->base.status) -+ return; -+ -+ /* DDB can't be 32bpp, so BitBlt is safe */ -+ ok = BitBlt (new_surface->dc, -+ 0, 0, width, height, -+ surface->dc, -+ 0, 0, SRCCOPY); -+ -+ if (!ok) -+ goto out; -+ -+ /* Now swap around new_surface and surface's internal bitmap -+ * pointers. */ -+ DeleteDC (new_surface->dc); -+ new_surface->dc = NULL; -+ -+ oldbitmap = SelectObject (surface->dc, new_surface->bitmap); -+ DeleteObject (oldbitmap); -+ -+ surface->image = new_surface->image; -+ surface->is_dib = new_surface->is_dib; -+ surface->bitmap = new_surface->bitmap; -+ -+ new_surface->bitmap = NULL; -+ new_surface->image = NULL; -+ -+ /* Finally update flags */ -+ surface->flags = _cairo_win32_flags_for_dc (surface->dc); -+ -+ out: -+ cairo_surface_destroy ((cairo_surface_t*)new_surface); -+} -+ - static cairo_status_t - _cairo_win32_surface_acquire_source_image (void *abstract_surface, - cairo_image_surface_t **image_out, -@@ -568,6 +618,17 @@ - cairo_win32_surface_t *surface = abstract_surface; - cairo_win32_surface_t *local = NULL; - cairo_status_t status; -+ -+ if (!surface->image && !surface->is_dib && surface->bitmap && -+ (surface->flags & CAIRO_WIN32_SURFACE_CAN_CONVERT_TO_DIB) != 0) -+ { -+ /* This is a DDB, and we're being asked to use it as a source for -+ * something that we couldn't support natively. So turn it into -+ * a DIB, so that we have an equivalent image surface, as long -+ * as we're allowed to via flags. -+ */ -+ _cairo_win32_convert_ddb_to_dib (surface); -+ } - - if (surface->image) { - *image_out = (cairo_image_surface_t *)surface->image; -@@ -2133,3 +2194,61 @@ - free(rd); - fflush (stderr); - } -+ -+/** -+ * cairo_win32_surface_set_can_convert_to_dib -+ * @surface: a #cairo_surface_t -+ * @can_convert: a #cairo_bool_t indicating whether this surface can -+ * be coverted to a DIB if necessary -+ * -+ * A DDB surface with this flag set can be converted to a DIB if it's -+ * used as a source in a way that GDI can't natively handle; for -+ * example, drawing a RGB24 DDB onto an ARGB32 DIB. Doing this -+ * conversion results in a significant speed optimization, because we -+ * can call on pixman to perform the operation natively, instead of -+ * reading the data from the DC each time. -+ * -+ * Return value: %CAIRO_STATUS_SUCCESS if the flag was successfully -+ * changed, or an error otherwise. -+ * -+ */ -+cairo_status_t -+cairo_win32_surface_set_can_convert_to_dib (cairo_surface_t *asurface, cairo_bool_t can_convert) -+{ -+ cairo_win32_surface_t *surface = (cairo_win32_surface_t*) asurface; -+ if (surface->base.type != CAIRO_SURFACE_TYPE_WIN32) -+ return CAIRO_STATUS_SURFACE_TYPE_MISMATCH; -+ -+ if (surface->bitmap) { -+ if (can_convert) -+ surface->flags |= CAIRO_WIN32_SURFACE_CAN_CONVERT_TO_DIB; -+ else -+ surface->flags &= ~CAIRO_WIN32_SURFACE_CAN_CONVERT_TO_DIB; -+ } -+ -+ return CAIRO_STATUS_SUCCESS; -+} -+ -+/** -+ * cairo_win32_surface_get_can_convert_to_dib -+ * @surface: a #cairo_surface_t -+ * @can_convert: a #cairo_bool_t* that receives the return value -+ * -+ * Returns the value of the flag indicating whether the surface can be -+ * converted to a DIB if necessary, as set by -+ * cairo_win32_surface_set_can_convert_to_dib. -+ * -+ * Return value: %CAIRO_STATUS_SUCCESS if the flag was successfully -+ * retreived, or an error otherwise. -+ * -+ */ -+cairo_status_t -+cairo_win32_surface_get_can_convert_to_dib (cairo_surface_t *asurface, cairo_bool_t *can_convert) -+{ -+ cairo_win32_surface_t *surface = (cairo_win32_surface_t*) asurface; -+ if (surface->base.type != CAIRO_SURFACE_TYPE_WIN32) -+ return CAIRO_STATUS_SURFACE_TYPE_MISMATCH; -+ -+ *can_convert = ((surface->flags & CAIRO_WIN32_SURFACE_CAN_CONVERT_TO_DIB) != 0); -+ return CAIRO_STATUS_SUCCESS; -+} -diff --git a/gfx/cairo/cairo/src/cairo-win32.h b/gfx/cairo/cairo/src/cairo-win32.h ---- a/gfx/cairo/cairo/src/cairo-win32.h -+++ b/gfx/cairo/cairo/src/cairo-win32.h -@@ -68,6 +68,12 @@ cairo_win32_surface_get_dc (cairo_surface_t *surface); - cairo_public cairo_surface_t * - cairo_win32_surface_get_image (cairo_surface_t *surface); - -+cairo_public cairo_status_t -+cairo_win32_surface_set_can_convert_to_dib (cairo_surface_t *surface, cairo_bool_t can_convert); -+ -+cairo_public cairo_status_t -+cairo_win32_surface_get_can_convert_to_dib (cairo_surface_t *surface, cairo_bool_t *can_convert); -+ - #if CAIRO_HAS_WIN32_FONT - |