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st-texture-cache: Fix stretched textures

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st_texture_cache_load_from_raw() enforces a square ClutterTexture,
resulting in the texture being stretched if the passed in image
data has a different width:height ratio.
Add padding in those cases as we already do when loading from pixbufs.

https://bugzilla.gnome.org/show_bug.cgi?id=683483
This commit is contained in:
Florian Müllner 2012-09-06 11:40:10 +02:00
parent b98c5f94ee
commit 6b016c2528
1 changed files with 25 additions and 15 deletions
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40
src/st/st-texture-cache.c
View File

@ -560,26 +560,27 @@ load_pixbuf_async_finish (StTextureCache *cache, GAsyncResult *result, GError **
}
static CoglHandle
pixbuf_to_cogl_handle (GdkPixbuf *pixbuf,
gboolean add_padding)
data_to_cogl_handle (const guchar *data,
gboolean has_alpha,
int width,
int height,
int rowstride,
gboolean add_padding)
{
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,
has_alpha ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888,
COGL_PIXEL_FORMAT_ANY,
gdk_pixbuf_get_rowstride (pixbuf),
gdk_pixbuf_get_pixels (pixbuf));
rowstride,
data);
texture = cogl_texture_new_with_size (size, size,
COGL_TEXTURE_NO_SLICING,
@ -597,12 +598,24 @@ pixbuf_to_cogl_handle (GdkPixbuf *pixbuf,
(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));
has_alpha ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888,
rowstride,
data);
return texture;
}
static CoglHandle
pixbuf_to_cogl_handle (GdkPixbuf *pixbuf,
gboolean add_padding)
{
return data_to_cogl_handle (gdk_pixbuf_get_pixels (pixbuf),
gdk_pixbuf_get_has_alpha (pixbuf),
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf),
gdk_pixbuf_get_rowstride (pixbuf),
add_padding);
}
static cairo_surface_t *
pixbuf_to_cairo_surface (GdkPixbuf *pixbuf)
{
@ -1408,10 +1421,7 @@ st_texture_cache_load_from_raw (StTextureCache *cache,
texdata = g_hash_table_lookup (cache->priv->keyed_cache, key);
if (texdata == NULL)
{
texdata = cogl_texture_new_from_data (width, height, COGL_TEXTURE_NONE,
has_alpha ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888,
COGL_PIXEL_FORMAT_ANY,
rowstride, data);
texdata = data_to_cogl_handle (data, has_alpha, width, height, rowstride, TRUE);
g_hash_table_insert (cache->priv->keyed_cache, g_strdup (key), texdata);
}