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pixman-renderer: use pre-computed inverse output matrix

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We've already computer the inverse of the output matrix, so we
don't need to calculate it again here.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Bryce Harrington <b.harrington@samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This commit is contained in:
Derek Foreman 2015-03-24 11:36:16 -05:00 committed by Pekka Paalanen
parent 7cb916e285
commit a5855adace
1 changed files with 1 additions and 1 deletions
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src/pixman-renderer.c
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@ -167,7 +167,7 @@ pixman_renderer_compute_transform(pixman_transform_t *transform_out,
/* Set up the source transformation based on the surface
position, the output position/transform/scale and the client
specified buffer transform/scale */
weston_matrix_invert(&matrix, &output->matrix);
matrix = output->inverse_matrix;
if (ev->transform.enabled) {
weston_matrix_multiply(&matrix, &ev->transform.inverse);