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gl: Handle errors from _cairo_gl_gradient_render()

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Thanks Andrea for finding this.
This commit is contained in:
Benjamin Otte 2010-08-08 17:23:05 +02:00
parent e31b56e020
commit 9669faa936
1 changed files with 8 additions and 1 deletions
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9
src/cairo-gl-gradient.c
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@ -192,6 +192,7 @@ _cairo_gl_gradient_create (cairo_gl_context_t *ctx,
{
unsigned long hash;
cairo_gl_gradient_t *gradient;
cairo_status_t status;
int tex_width;
void *data;
@ -224,10 +225,16 @@ _cairo_gl_gradient_create (cairo_gl_context_t *ctx,
glBufferDataARB (GL_PIXEL_UNPACK_BUFFER_ARB, tex_width * sizeof (uint32_t), 0, GL_STREAM_DRAW);
data = glMapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB, GL_WRITE_ONLY);
_cairo_gl_gradient_render (ctx, n_stops, stops, data, tex_width);
status = _cairo_gl_gradient_render (ctx, n_stops, stops, data, tex_width);
glUnmapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB);
if (unlikely (status)) {
glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB, 0);
free (gradient);
return status;
}
glGenTextures (1, &gradient->tex);
_cairo_gl_context_activate (ctx, CAIRO_GL_TEX_TEMP);
glBindTexture (GL_TEXTURE_1D, gradient->tex);