* Boston, MA 02111-1307, USA.
*/
-#include <config.h>
+#include "config.h"
#include <gdk/gdk.h>
-#include "gdk-pixbuf-private.h"
+#include <gdk-pixbuf/gdk-pixbuf.h>
#include "gdkpixbuf.h"
#include "gdkscreen.h"
#include "gdkinternals.h"
+#include "gdkalias.h"
\f
int start, start_status;
int status;
- g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
- g_return_if_fail (pixbuf->colorspace == GDK_COLORSPACE_RGB);
- g_return_if_fail (pixbuf->n_channels == 3 || pixbuf->n_channels == 4);
- g_return_if_fail (pixbuf->bits_per_sample == 8);
+ g_return_val_if_fail (gdk_pixbuf_get_colorspace (pixbuf) == GDK_COLORSPACE_RGB, NULL);
+ g_return_val_if_fail (gdk_pixbuf_get_n_channels (pixbuf) == 3 ||
+ gdk_pixbuf_get_n_channels (pixbuf) == 4, NULL);
+ g_return_val_if_fail (gdk_pixbuf_get_bits_per_sample (pixbuf) == 8, NULL);
if (width == -1)
- width = pixbuf->width;
+ width = gdk_pixbuf_get_width (pixbuf);
if (height == -1)
- height = pixbuf->height;
+ height = gdk_pixbuf_get_height (pixbuf);
g_return_if_fail (bitmap != NULL);
g_return_if_fail (width >= 0 && height >= 0);
- g_return_if_fail (src_x >= 0 && src_x + width <= pixbuf->width);
- g_return_if_fail (src_y >= 0 && src_y + height <= pixbuf->height);
+ g_return_if_fail (src_x >= 0 && src_x + width <= gdk_pixbuf_get_width (pixbuf));
+ g_return_if_fail (src_y >= 0 && src_y + height <= gdk_pixbuf_get_height (pixbuf));
g_return_if_fail (alpha_threshold >= 0 && alpha_threshold <= 255);
if (width == 0 || height == 0)
return;
- gc = gdk_gc_new (bitmap);
+ gc = _gdk_drawable_get_scratch_gc (bitmap, FALSE);
- if (!pixbuf->has_alpha)
+ if (!gdk_pixbuf_get_has_alpha (pixbuf))
{
color.pixel = (alpha_threshold == 255) ? 0 : 1;
gdk_gc_set_foreground (gc, &color);
gdk_draw_rectangle (bitmap, gc, TRUE, dest_x, dest_y, width, height);
- g_object_unref (gc);
return;
}
for (y = 0; y < height; y++)
{
- p = (pixbuf->pixels + (y + src_y) * pixbuf->rowstride + src_x * pixbuf->n_channels
- + pixbuf->n_channels - 1);
+ p = (gdk_pixbuf_get_pixels (pixbuf) + (y + src_y) * gdk_pixbuf_get_rowstride (pixbuf) + src_x * gdk_pixbuf_get_n_channels (pixbuf)
+ + gdk_pixbuf_get_n_channels (pixbuf) - 1);
start = 0;
start_status = *p < alpha_threshold;
start_status = status;
}
- p += pixbuf->n_channels;
+ p += gdk_pixbuf_get_n_channels (pixbuf);
}
if (!start_status)
start + dest_x, y + dest_y,
x - 1 + dest_x, y + dest_y);
}
-
- g_object_unref (gc);
-}
-
-\f
-
-/**
- * gdk_pixbuf_render_to_drawable:
- * @pixbuf: A pixbuf.
- * @drawable: Destination drawable.
- * @gc: GC used for rendering.
- * @src_x: Source X coordinate within pixbuf.
- * @src_y: Source Y coordinate within pixbuf.
- * @dest_x: Destination X coordinate within drawable.
- * @dest_y: Destination Y coordinate within drawable.
- * @width: Width of region to render, in pixels, or -1 to use pixbuf width
- * @height: Height of region to render, in pixels, or -1 to use pixbuf height
- * @dither: Dithering mode for GdkRGB.
- * @x_dither: X offset for dither.
- * @y_dither: Y offset for dither.
- *
- * Renders a rectangular portion of a pixbuf to a drawable while using the
- * specified GC. This is done using GdkRGB, so the specified drawable must have
- * the GdkRGB visual and colormap. Note that this function will ignore the
- * opacity information for images with an alpha channel; the GC must already
- * have the clipping mask set if you want transparent regions to show through.
- *
- * For an explanation of dither offsets, see the GdkRGB documentation. In
- * brief, the dither offset is important when re-rendering partial regions of an
- * image to a rendered version of the full image, or for when the offsets to a
- * base position change, as in scrolling. The dither matrix has to be shifted
- * for consistent visual results. If you do not have any of these cases, the
- * dither offsets can be both zero.
- *
- * Deprecated: This function is obsolete. Use gdk_draw_pixbuf() instead.
- **/
-void
-gdk_pixbuf_render_to_drawable (GdkPixbuf *pixbuf,
- GdkDrawable *drawable,
- GdkGC *gc,
- int src_x, int src_y,
- int dest_x, int dest_y,
- int width, int height,
- GdkRgbDither dither,
- int x_dither, int y_dither)
-{
- gdk_draw_pixbuf (drawable, gc, pixbuf,
- src_x, src_y, dest_x, dest_y, width, height,
- dither, x_dither, y_dither);
-}
-
-\f
-
-/**
- * gdk_pixbuf_render_to_drawable_alpha:
- * @pixbuf: A pixbuf.
- * @drawable: Destination drawable.
- * @src_x: Source X coordinate within pixbuf.
- * @src_y: Source Y coordinates within pixbuf.
- * @dest_x: Destination X coordinate within drawable.
- * @dest_y: Destination Y coordinate within drawable.
- * @width: Width of region to render, in pixels, or -1 to use pixbuf width.
- * @height: Height of region to render, in pixels, or -1 to use pixbuf height.
- * @alpha_mode: Ignored. Present for backwards compatibility.
- * @alpha_threshold: Ignored. Present for backwards compatibility
- * @dither: Dithering mode for GdkRGB.
- * @x_dither: X offset for dither.
- * @y_dither: Y offset for dither.
- *
- * Renders a rectangular portion of a pixbuf to a drawable. The destination
- * drawable must have a colormap. All windows have a colormap, however, pixmaps
- * only have colormap by default if they were created with a non-NULL window argument.
- * Otherwise a colormap must be set on them with gdk_drawable_set_colormap.
- *
- * On older X servers, rendering pixbufs with an alpha channel involves round trips
- * to the X server, and may be somewhat slow.
- *
- * Deprecated: This function is obsolete. Use gdk_draw_pixbuf() instead.
- **/
-void
-gdk_pixbuf_render_to_drawable_alpha (GdkPixbuf *pixbuf,
- GdkDrawable *drawable,
- int src_x, int src_y,
- int dest_x, int dest_y,
- int width, int height,
- GdkPixbufAlphaMode alpha_mode,
- int alpha_threshold,
- GdkRgbDither dither,
- int x_dither, int y_dither)
-{
- gdk_draw_pixbuf (drawable, NULL, pixbuf,
- src_x, src_y, dest_x, dest_y, width, height,
- dither, x_dither, y_dither);
}
/**
* The pixmap that is created is created for the colormap returned
* by gdk_rgb_get_colormap(). You normally will want to instead use
* the actual colormap for a widget, and use
- * gdk_pixbuf_render_pixmap_and_mask_for_colormap.
+ * gdk_pixbuf_render_pixmap_and_mask_for_colormap().
*
* If the pixbuf does not have an alpha channel, then *@mask_return will be set
- * to NULL.
+ * to %NULL.
**/
void
gdk_pixbuf_render_pixmap_and_mask (GdkPixbuf *pixbuf,
* will eventually be used or an error will result.
*
* If the pixbuf does not have an alpha channel, then *@mask_return will be set
- * to NULL.
+ * to %NULL.
**/
void
gdk_pixbuf_render_pixmap_and_mask_for_colormap (GdkPixbuf *pixbuf,
gdk_drawable_set_colormap (GDK_DRAWABLE (*pixmap_return), colormap);
gc = _gdk_drawable_get_scratch_gc (*pixmap_return, FALSE);
- gdk_draw_pixbuf (*pixmap_return, gc, pixbuf,
- 0, 0, 0, 0,
- gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf),
- GDK_RGB_DITHER_NORMAL,
- 0, 0);
+
+ /* If the pixbuf has an alpha channel, using gdk_pixbuf_draw would give
+ * random pixel values in the area that are within the mask, but semi-
+ * transparent. So we treat the pixbuf like a pixbuf without alpha channel;
+ * see bug #487865.
+ */
+ if (gdk_pixbuf_get_has_alpha (pixbuf))
+ gdk_draw_rgb_32_image (*pixmap_return, gc,
+ 0, 0,
+ gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf),
+ GDK_RGB_DITHER_NORMAL,
+ gdk_pixbuf_get_pixels (pixbuf), gdk_pixbuf_get_rowstride (pixbuf));
+ else
+ gdk_draw_pixbuf (*pixmap_return, gc, pixbuf,
+ 0, 0, 0, 0,
+ gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf),
+ GDK_RGB_DITHER_NORMAL,
+ 0, 0);
}
if (mask_return)
*mask_return = NULL;
}
}
+
+#define __GDK_PIXBUF_RENDER_C__
+#include "gdkaliasdef.c"
+
projects / ~andy / gtk / blobdiff