diff options
| author | Igor Oliveira <igor.o@sisa.samsung.com> | 2012-03-23 16:54:22 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2012-03-23 16:54:22 +0000 |
| commit | 21218870300bfb4050b87c9a872b7664ce44d94e (patch) | |
| tree | 360c98224edcc1f9b40b6ffb5b463b2b3a7e3e82 /src/cairo-gl-surface.c | |
| parent | 60549f7a56d2b021ab612a6b66e720d31f3400ad (diff) | |
gl: GL_UNPACK_ROW_LENGTH does not accept negative values
Use the slow fallback path if passed an image with a negative stride.
Fixes negative-stride-image.
Diffstat (limited to 'src/cairo-gl-surface.c')
| -rw-r--r-- | src/cairo-gl-surface.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/cairo-gl-surface.c b/src/cairo-gl-surface.c index 95b4d7c9..91c860ac 100644 --- a/src/cairo-gl-surface.c +++ b/src/cairo-gl-surface.c @@ -845,9 +845,10 @@ _cairo_gl_surface_draw_image (cairo_gl_surface_t *dst, * b. the row stride cannot be handled by GL itself using a 4 byte * alignment constraint */ - if (ctx->gl_flavor == CAIRO_GL_FLAVOR_ES && - (src->width * cpp < src->stride - 3 || - width != src->width)) + if (src->stride < 0 || + (ctx->gl_flavor == CAIRO_GL_FLAVOR_ES && + (src->width * cpp < src->stride - 3 || + width != src->width))) { glPixelStorei (GL_UNPACK_ALIGNMENT, 1); status = _cairo_gl_surface_extract_image_data (src, src_x, src_y, |