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When internally using an FBO, check for allocation errors

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Both the cogl_texture_get_data and _cogl_blit_begin implementations
will internally try to create an FBO for a texture and have fallbacks
if the FBO fails. However neither of them were catching errors when
allocating the framebuffer so the fallback wouldn't work properly.
This patch just adds an explicit call to cogl_framebuffer_allocate for
these uses and causes it to use the next fallback if it fails.

Based on a patch by Adel Gadllah.

https://bugzilla.gnome.org/show_bug.cgi?id=669368

Reviewed-by: Robert Bragg <robert@linux.intel.com>
This commit is contained in:
Neil Roberts 2012-02-06 12:23:39 +00:00
parent fd0dfbf3d5
commit ec1bb4ce39
2 changed files with 44 additions and 12 deletions
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50
cogl/cogl-blit.c
View File

@ -55,6 +55,12 @@ _cogl_blit_texture_render_begin (CoglBlitData *data)
if (fbo == COGL_INVALID_HANDLE)
return FALSE;
if (!cogl_framebuffer_allocate (fbo, NULL))
{
cogl_handle_unref (fbo);
return FALSE;
}
cogl_push_framebuffer (fbo);
cogl_handle_unref (fbo);
@ -141,6 +147,7 @@ static gboolean
_cogl_blit_framebuffer_begin (CoglBlitData *data)
{
CoglHandle dst_fbo, src_fbo;
gboolean ret;
_COGL_GET_CONTEXT (ctx, FALSE);
@ -155,22 +162,35 @@ _cogl_blit_framebuffer_begin (CoglBlitData *data)
(data->dst_tex, COGL_OFFSCREEN_DISABLE_DEPTH_AND_STENCIL, 0 /* level */);
if (dst_fbo == COGL_INVALID_HANDLE)
return FALSE;
src_fbo = _cogl_offscreen_new_to_texture_full
(data->src_tex, COGL_OFFSCREEN_DISABLE_DEPTH_AND_STENCIL, 0 /* level */);
if (src_fbo == COGL_INVALID_HANDLE)
ret = FALSE;
else
{
if (!cogl_framebuffer_allocate (dst_fbo, NULL))
ret = FALSE;
else
{
src_fbo = _cogl_offscreen_new_to_texture_full
(data->src_tex,
COGL_OFFSCREEN_DISABLE_DEPTH_AND_STENCIL,
0 /* level */);
if (src_fbo == COGL_INVALID_HANDLE)
ret = FALSE;
else
{
if (!cogl_framebuffer_allocate (src_fbo, NULL))
ret = FALSE;
else
_cogl_push_framebuffers (dst_fbo, src_fbo);
cogl_handle_unref (src_fbo);
}
}
cogl_handle_unref (dst_fbo);
return FALSE;
}
_cogl_push_framebuffers (dst_fbo, src_fbo);
cogl_handle_unref (src_fbo);
cogl_handle_unref (dst_fbo);
return TRUE;
return ret;
}
static void
@ -210,6 +230,12 @@ _cogl_blit_copy_tex_sub_image_begin (CoglBlitData *data)
if (fbo == COGL_INVALID_HANDLE)
return FALSE;
if (!cogl_framebuffer_allocate (fbo, NULL))
{
cogl_handle_unref (fbo);
return FALSE;
}
cogl_push_framebuffer (fbo);
cogl_handle_unref (fbo);

6
cogl/cogl-texture.c
View File

@ -1026,6 +1026,12 @@ get_texture_bits_via_offscreen (CoglTexture *texture,
if (framebuffer == NULL)
return FALSE;
if (!cogl_framebuffer_allocate (framebuffer, NULL))
{
cogl_object_unref (framebuffer);
return FALSE;
}
cogl_push_framebuffer (framebuffer);
_cogl_read_pixels_with_rowstride (x, y, width, height,