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Merge from stable: fix texture tiling

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Revert to copying GdkPixbuf areas to correctly implement the texture
tiling. This fixes segmentation faults occurring with cards with a
small texture memory area.
This commit is contained in:
Emmanuele Bassi 2007-04-19 15:24:20 +00:00
parent 09487c904a
commit e89f08560d
1 changed files with 66 additions and 62 deletions
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128
clutter/clutter-texture.c
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@ -383,8 +383,10 @@ texture_upload_data (ClutterTexture *texture,
gint bpp)
{
ClutterTexturePrivate *priv;
int x, y, i = 0;
gboolean create_textures = FALSE;
gint x, y;
gint i = 0;
gboolean create_textures = FALSE;
GdkPixbuf *master_pixbuf = NULL;
priv = texture->priv;
@ -466,6 +468,13 @@ texture_upload_data (ClutterTexture *texture,
priv->width, priv->height);
g_return_if_fail (priv->x_tiles != NULL && priv->y_tiles != NULL);
master_pixbuf = gdk_pixbuf_new_from_data (data,
GDK_COLORSPACE_RGB,
has_alpha,
8,
width, height, rowstride,
NULL, NULL);
if (priv->tiles == NULL)
{
@ -477,42 +486,31 @@ texture_upload_data (ClutterTexture *texture,
for (x = 0; x < priv->n_x_tiles; x++)
for (y = 0; y < priv->n_y_tiles; y++)
{
guchar *tmp;
gint src_h, src_w, dy;
GdkPixbuf *pixtmp;
gint src_h, src_w;
src_w = priv->x_tiles[x].size;
src_h = priv->y_tiles[y].size;
/* fixme - gslice ? */
tmp = g_malloc (sizeof (guchar) * priv->x_tiles[x].size
* priv->y_tiles[y].size
* bpp);
pixtmp = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
has_alpha,
8,
src_w, src_h);
/* clip */
if (priv->x_tiles[x].pos + src_w > priv->width)
{
src_w = priv->width - priv->x_tiles[x].pos;
}
src_w = priv->width - priv->x_tiles[x].pos;
if (priv->y_tiles[y].pos + src_h > priv->height)
{
src_h = priv->height - priv->y_tiles[y].pos;
}
src_h = priv->height - priv->y_tiles[y].pos;
CLUTTER_NOTE (TEXTURE,
"copying tile %i,%i - %ix%i to 0,0 %ix%i",
priv->x_tiles[x].pos, priv->y_tiles[y].pos,
src_w, src_h,
priv->x_tiles[x].size,
priv->y_tiles[y].size);
for (dy = 0; dy < src_h; dy++)
{
memcpy (tmp + (dy * src_w * bpp),
data + ((priv->y_tiles[y].pos + dy) * rowstride)
+ (priv->x_tiles[x].pos * bpp),
(src_w * bpp));
}
gdk_pixbuf_copy_area (master_pixbuf,
priv->x_tiles[x].pos,
priv->y_tiles[y].pos,
src_w,
src_h,
pixtmp,
0, 0);
#ifdef CLUTTER_DUMP_TILES
{
@ -549,15 +547,13 @@ texture_upload_data (ClutterTexture *texture,
if (create_textures)
{
glTexImage2D(priv->target_type,
0,
(bpp == 4) ? GL_RGBA : GL_RGB,
priv->x_tiles[x].size,
priv->y_tiles[y].size,
0,
priv->pixel_format,
priv->pixel_type,
tmp);
glTexImage2D (priv->target_type, 0, GL_RGBA,
gdk_pixbuf_get_width (pixtmp),
gdk_pixbuf_get_height (pixtmp),
0,
priv->pixel_format,
priv->pixel_type,
gdk_pixbuf_get_pixels (pixtmp));
}
else
{
@ -565,17 +561,19 @@ texture_upload_data (ClutterTexture *texture,
*/
glTexSubImage2D (priv->target_type, 0,
0, 0,
priv->x_tiles[x].size,
priv->y_tiles[y].size,
priv->pixel_format,
gdk_pixbuf_get_width (pixtmp),
gdk_pixbuf_get_height (pixtmp),
priv->pixel_format,
priv->pixel_type,
tmp);
gdk_pixbuf_get_pixels (pixtmp));
}
g_free(tmp);
g_object_unref (pixtmp);
i++;
}
g_object_unref (master_pixbuf);
}
static void
@ -754,8 +752,7 @@ clutter_texture_set_property (GObject *object,
case PROP_USE_TILES:
priv->is_tiled = g_value_get_boolean (value);
if (priv->target_type == GL_TEXTURE_RECTANGLE_ARB &&
priv->is_tiled)
if (priv->target_type == GL_TEXTURE_RECTANGLE_ARB && priv->is_tiled)
priv->target_type = GL_TEXTURE_2D;
CLUTTER_NOTE (TEXTURE, "Texture is tiled ? %s",
@ -1052,9 +1049,9 @@ clutter_texture_get_pixbuf (ClutterTexture* texture)
if (!priv->is_tiled)
{
pixels = g_malloc (priv->width * priv->height * bpp);
pixels = g_malloc (((priv->width * bpp + 3) &~ 3) * priv->height);
if (pixels == NULL)
if (!pixels)
return NULL;
glBindTexture(priv->target_type, priv->tiles[0]);
@ -1075,7 +1072,7 @@ clutter_texture_get_pixbuf (ClutterTexture* texture)
8,
priv->width,
priv->height,
priv->width * bpp,
((priv->width * bpp + 3) &~ 3),
pixbuf_destroy_notify,
NULL);
}
@ -1091,8 +1088,8 @@ clutter_texture_get_pixbuf (ClutterTexture* texture)
priv->width,
priv->height);
for (x=0; x < priv->n_x_tiles; x++)
for (y=0; y < priv->n_y_tiles; y++)
for (x = 0; x < priv->n_x_tiles; x++)
for (y = 0; y < priv->n_y_tiles; y++)
{
GdkPixbuf *tmp_pixb;
gint src_h, src_w;
@ -1100,7 +1097,7 @@ clutter_texture_get_pixbuf (ClutterTexture* texture)
src_w = priv->x_tiles[x].size;
src_h = priv->y_tiles[y].size;
pixels = g_malloc (src_w * src_h * bpp);
pixels = g_malloc (((src_w * bpp) &~ 3) * src_h);
glBindTexture(priv->target_type, priv->tiles[i]);
@ -1111,18 +1108,25 @@ clutter_texture_get_pixbuf (ClutterTexture* texture)
0,
priv->pixel_format,
priv->pixel_type,
(GLvoid*)pixels);
(GLvoid *) pixels);
tmp_pixb
= gdk_pixbuf_new_from_data ((const guchar*)pixels,
GDK_COLORSPACE_RGB,
(priv->pixel_format == GL_RGBA),
8,
src_w,
src_h,
src_w * bpp,
pixbuf_destroy_notify,
NULL);
/* Clip */
if (priv->x_tiles[x].pos + src_w > priv->width)
src_w = priv->width - priv->x_tiles[x].pos;
if (priv->y_tiles[y].pos + src_h > priv->height)
src_h = priv->height = priv->y_tiles[y].pos;
tmp_pixb =
gdk_pixbuf_new_from_data ((const guchar*)pixels,
GDK_COLORSPACE_RGB,
(priv->pixel_format == GL_RGBA),
8,
src_w,
src_h,
((src_w * bpp + 3) &~ 3),
pixbuf_destroy_notify,
NULL);
gdk_pixbuf_copy_area (tmp_pixb,
0,