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framebuffers: cogl_offscreen_new_to_texture should take a ref on the texture

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We weren't taking a reference on the texture to be used as the color buffer
for offscreen rendering, so it was possible to free the texture leaving the
framebuffer in an inconsistent state.
This commit is contained in:
Robert Bragg 2009-11-25 14:26:32 +00:00
parent fbad0a75b6
commit 05ce533fc8
2 changed files with 4 additions and 0 deletions
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1
cogl/cogl-framebuffer-private.h
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@ -57,6 +57,7 @@ typedef struct _CoglOffscreen
CoglFramebuffer _parent;
GLuint fbo_handle;
GLuint gl_stencil_handle;
CoglHandle texture;
} CoglOffscreen;
#define COGL_OFFSCREEN(X) ((CoglOffscreen *)(X))

3
cogl/cogl-framebuffer.c
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@ -339,6 +339,7 @@ cogl_offscreen_new_to_texture (CoglHandle texhandle)
offscreen->fbo_handle = fbo_gl_handle;
offscreen->gl_stencil_handle = gl_stencil_handle;
offscreen->texture = cogl_handle_ref (texhandle);
/* XXX: Can we get a away with removing this? It wasn't documented, and most
* users of the API are hopefully setting up the modelview from scratch
@ -362,6 +363,8 @@ _cogl_offscreen_free (CoglOffscreen *offscreen)
if (offscreen->gl_stencil_handle)
GE (glDeleteRenderbuffers (1, &offscreen->gl_stencil_handle));
if (offscreen->texture != COGL_INVALID_HANDLE)
cogl_handle_unref (offscreen->texture);
GE (glDeleteFramebuffers (1, &offscreen->fbo_handle));
g_free (offscreen);
}