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| author | SND\weimingzhi_cp <SND\weimingzhi_cp@e17a0e51-4ae3-4d35-97c3-1a29b211df97> | 2011-02-16 03:38:02 +0000 |
|---|---|---|
| committer | SND\weimingzhi_cp <SND\weimingzhi_cp@e17a0e51-4ae3-4d35-97c3-1a29b211df97> | 2011-02-16 03:38:02 +0000 |
| commit | 394f7a2b4a604dc40cf29f23a7121deb19eed79c (patch) | |
| tree | ff56e3a9568726042924c1594116e455c29d0a44 /gui/gdk-compat.h | |
| parent | af73c2069339f0315d53e85fd5c45c7c89d6638a (diff) | |
| download | pcsxr-394f7a2b4a604dc40cf29f23a7121deb19eed79c.tar.gz | |
-(YarTour)Clean deprecated GTK+ symbols, preliminary GTK+-3.0 compatibility (Issue #8084, Patch #8353).
git-svn-id: https://pcsxr.svn.codeplex.com/svn/pcsxr@63426 e17a0e51-4ae3-4d35-97c3-1a29b211df97
Diffstat (limited to 'gui/gdk-compat.h')
| -rw-r--r-- | gui/gdk-compat.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/gui/gdk-compat.h b/gui/gdk-compat.h new file mode 100644 index 00000000..8be02787 --- /dev/null +++ b/gui/gdk-compat.h @@ -0,0 +1,155 @@ +static cairo_format_t
+compat_gdk_cairo_format_for_content (cairo_content_t content)
+{
+ switch (content)
+ {
+ case CAIRO_CONTENT_COLOR:
+ return CAIRO_FORMAT_RGB24;
+ case CAIRO_CONTENT_ALPHA:
+ return CAIRO_FORMAT_A8;
+ case CAIRO_CONTENT_COLOR_ALPHA:
+ default:
+ return CAIRO_FORMAT_ARGB32;
+ }
+}
+
+static cairo_surface_t *
+compat_gdk_cairo_surface_coerce_to_image (cairo_surface_t *surface,
+ cairo_content_t content,
+ int src_x,
+ int src_y,
+ int width,
+ int height)
+{
+ cairo_surface_t *copy;
+ cairo_t *cr;
+
+ copy = cairo_image_surface_create (compat_gdk_cairo_format_for_content (content),
+ width,
+ height);
+
+ cr = cairo_create (copy);
+ cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
+ cairo_set_source_surface (cr, surface, -src_x, -src_y);
+ cairo_paint (cr);
+ cairo_destroy (cr);
+
+ return copy;
+}
+
+static void
+compat_convert_alpha (guchar *dest_data,
+ int dest_stride,
+ guchar *src_data,
+ int src_stride,
+ int src_x,
+ int src_y,
+ int width,
+ int height)
+{
+ int x, y;
+
+ src_data += src_stride * src_y + src_x * 4;
+
+ for (y = 0; y < height; y++) {
+ guint32 *src = (guint32 *) src_data;
+
+ for (x = 0; x < width; x++) {
+ guint alpha = src[x] >> 24;
+
+ if (alpha == 0)
+ {
+ dest_data[x * 4 + 0] = 0;
+ dest_data[x * 4 + 1] = 0;
+ dest_data[x * 4 + 2] = 0;
+ }
+ else
+ {
+ dest_data[x * 4 + 0] = (((src[x] & 0xff0000) >> 16) * 255 + alpha / 2) / alpha;
+ dest_data[x * 4 + 1] = (((src[x] & 0x00ff00) >> 8) * 255 + alpha / 2) / alpha;
+ dest_data[x * 4 + 2] = (((src[x] & 0x0000ff) >> 0) * 255 + alpha / 2) / alpha;
+ }
+ dest_data[x * 4 + 3] = alpha;
+ }
+
+ src_data += src_stride;
+ dest_data += dest_stride;
+ }
+}
+
+static void
+compat_convert_no_alpha (guchar *dest_data,
+ int dest_stride,
+ guchar *src_data,
+ int src_stride,
+ int src_x,
+ int src_y,
+ int width,
+ int height)
+{
+ int x, y;
+
+ src_data += src_stride * src_y + src_x * 4;
+
+ for (y = 0; y < height; y++) {
+ guint32 *src = (guint32 *) src_data;
+
+ for (x = 0; x < width; x++) {
+ dest_data[x * 3 + 0] = src[x] >> 16;
+ dest_data[x * 3 + 1] = src[x] >> 8;
+ dest_data[x * 3 + 2] = src[x];
+ }
+
+ src_data += src_stride;
+ dest_data += dest_stride;
+ }
+}
+
+GdkPixbuf *
+compat_gdk_pixbuf_get_from_surface (cairo_surface_t *surface,
+ gint src_x,
+ gint src_y,
+ gint width,
+ gint height)
+{
+ cairo_content_t content;
+ GdkPixbuf *dest;
+
+ /* General sanity checks */
+ g_return_val_if_fail (surface != NULL, NULL);
+ g_return_val_if_fail (width > 0 && height > 0, NULL);
+
+ content = cairo_surface_get_content (surface) | CAIRO_CONTENT_COLOR;
+ dest = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
+ !!(content & CAIRO_CONTENT_ALPHA),
+ 8,
+ width, height);
+
+ surface = compat_gdk_cairo_surface_coerce_to_image (surface, content,
+ src_x, src_y,
+ width, height);
+ cairo_surface_flush (surface);
+ if (cairo_surface_status (surface) || dest == NULL)
+ {
+ cairo_surface_destroy (surface);
+ return NULL;
+ }
+
+ if (gdk_pixbuf_get_has_alpha (dest))
+ compat_convert_alpha (gdk_pixbuf_get_pixels (dest),
+ gdk_pixbuf_get_rowstride (dest),
+ cairo_image_surface_get_data (surface),
+ cairo_image_surface_get_stride (surface),
+ 0, 0,
+ width, height);
+ else
+ compat_convert_no_alpha (gdk_pixbuf_get_pixels (dest),
+ gdk_pixbuf_get_rowstride (dest),
+ cairo_image_surface_get_data (surface),
+ cairo_image_surface_get_stride (surface),
+ 0, 0,
+ width, height);
+
+ cairo_surface_destroy (surface);
+ return dest;
+}
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