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st-texture-cache: Fix stretched images

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Some functions in StTextureCache enforce square ClutterTextures,
even in cases where the underlying CoglTexture has a different
width:height ratio.
Add padding in those cases to keep the resulting image from being
stretched.

https://bugzilla.gnome.org/show_bug.cgi?id=643866
This commit is contained in:
Florian Müllner 2011-03-22 04:47:43 +01:00
parent dba02f8f08
commit 4208078750
1 changed files with 49 additions and 13 deletions
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52
src/st/st-texture-cache.c
View File

@ -777,6 +777,7 @@ typedef struct {
char *key;
char *uri;
gboolean thumbnail;
gboolean enforced_square;
char *mimetype;
GtkRecentInfo *recent_info;
char *checksum;
@ -788,15 +789,47 @@ typedef struct {
} AsyncTextureLoadData;
static CoglHandle
pixbuf_to_cogl_handle (GdkPixbuf *pixbuf)
pixbuf_to_cogl_handle (GdkPixbuf *pixbuf,
gboolean add_padding)
{
return cogl_texture_new_from_data (gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf),
CoglHandle texture, offscreen;
CoglColor clear_color;
int width, height;
guint size;
width = gdk_pixbuf_get_width (pixbuf);
height = gdk_pixbuf_get_height (pixbuf);
size = MAX (width, height);
if (!add_padding || width == height)
return cogl_texture_new_from_data (width,
height,
COGL_TEXTURE_NONE,
gdk_pixbuf_get_has_alpha (pixbuf) ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888,
COGL_PIXEL_FORMAT_ANY,
gdk_pixbuf_get_rowstride (pixbuf),
gdk_pixbuf_get_pixels (pixbuf));
texture = cogl_texture_new_with_size (size, size,
COGL_TEXTURE_NO_SLICING,
COGL_PIXEL_FORMAT_ANY);
offscreen = cogl_offscreen_new_to_texture (texture);
cogl_color_set_from_4ub (&clear_color, 0, 0, 0, 0);
cogl_push_framebuffer (offscreen);
cogl_clear (&clear_color, COGL_BUFFER_BIT_COLOR);
cogl_pop_framebuffer ();
cogl_handle_unref (offscreen);
cogl_texture_set_region (texture,
0, 0,
(size - width) / 2, (size - height) / 2,
width, height,
width, height,
gdk_pixbuf_get_has_alpha (pixbuf) ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_rowstride (pixbuf),
gdk_pixbuf_get_pixels (pixbuf));
return texture;
}
static cairo_surface_t *
@ -882,7 +915,7 @@ on_pixbuf_loaded (GObject *source,
if (pixbuf == NULL)
goto out;
texdata = pixbuf_to_cogl_handle (pixbuf);
texdata = pixbuf_to_cogl_handle (pixbuf, data->enforced_square);
g_object_unref (pixbuf);
@ -956,7 +989,7 @@ st_texture_cache_reset_texture (StTextureCachePropertyBind *bind,
if (pixbuf != NULL)
{
texdata = pixbuf_to_cogl_handle (pixbuf);
texdata = pixbuf_to_cogl_handle (pixbuf, FALSE);
g_object_unref (pixbuf);
clutter_texture_set_cogl_texture (bind->texture, texdata);
@ -1183,6 +1216,7 @@ load_gicon_with_colors (StTextureCache *cache,
request->icon = g_object_ref (icon);
request->icon_info = info;
request->width = request->height = size;
request->enforced_square = TRUE;
load_icon_pixbuf_async (cache, icon, info, size, colors, NULL, on_pixbuf_loaded, request);
}
@ -1247,7 +1281,7 @@ load_from_pixbuf (GdkPixbuf *pixbuf)
clutter_actor_set_size (CLUTTER_ACTOR (texture), width, height);
texdata = pixbuf_to_cogl_handle (pixbuf);
texdata = pixbuf_to_cogl_handle (pixbuf, FALSE);
set_texture_cogl_texture (texture, texdata);
@ -1574,7 +1608,7 @@ st_texture_cache_load_uri_sync_to_cogl_texture (StTextureCache *cache,
if (!pixbuf)
goto out;
texdata = pixbuf_to_cogl_handle (pixbuf);
texdata = pixbuf_to_cogl_handle (pixbuf, FALSE);
g_object_unref (pixbuf);
if (policy == ST_TEXTURE_CACHE_POLICY_FOREVER)
@ -1825,7 +1859,7 @@ st_texture_cache_load_from_data (StTextureCache *cache,
return NULL;
}
texdata = pixbuf_to_cogl_handle (pixbuf);
texdata = pixbuf_to_cogl_handle (pixbuf, TRUE);
g_object_unref (pixbuf);
set_texture_cogl_texture (texture, texdata);
@ -1949,6 +1983,7 @@ st_texture_cache_load_thumbnail (StTextureCache *cache,
data->thumbnail = TRUE;
data->width = size;
data->height = size;
data->enforced_square = TRUE;
data->textures = g_slist_prepend (data->textures, g_object_ref (texture));
load_thumbnail_async (cache, uri, mimetype, size, NULL, on_pixbuf_loaded, data);
}
@ -2025,6 +2060,7 @@ st_texture_cache_load_recent_thumbnail (StTextureCache *cache,
data->recent_info = gtk_recent_info_ref (info);
data->width = size;
data->height = size;
data->enforced_square = TRUE;
data->textures = g_slist_prepend (data->textures, g_object_ref (texture));
load_recent_thumbnail_async (cache, info, size, NULL, on_pixbuf_loaded, data);
}