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iris: don't segfault on !old_cso

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This commit is contained in:
Kenneth Graunke 2018-01-09 23:14:10 -08:00
parent 3eadb1b3a1
commit c1c6c3a18a
1 changed files with 9 additions and 7 deletions
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16
src/gallium/drivers/iris/iris_state.c
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@ -540,14 +540,16 @@ iris_bind_rasterizer_state(struct pipe_context *ctx, void *state)
struct iris_rasterizer_state *old_cso = ice->state.cso_rast;
struct iris_rasterizer_state *new_cso = state;
/* Avoid re-emitting 3DSTATE_LINE_STIPPLE if we can, it's non-pipelined */
if (old_cso->line_stipple_factor != new_cso->line_stipple_factor ||
old_cso->line_stipple_pattern != new_cso->line_stipple_pattern) {
ice->state.dirty |= IRIS_DIRTY_LINE_STIPPLE;
}
if (old_cso) {
/* Try to avoid re-emitting 3DSTATE_LINE_STIPPLE, it's non-pipelined */
if (old_cso->line_stipple_factor != new_cso->line_stipple_factor ||
old_cso->line_stipple_pattern != new_cso->line_stipple_pattern) {
ice->state.dirty |= IRIS_DIRTY_LINE_STIPPLE;
}
if (old_cso->half_pixel_center != new_cso->half_pixel_center) {
ice->state.dirty |= IRIS_DIRTY_MULTISAMPLE;
if (old_cso->half_pixel_center != new_cso->half_pixel_center) {
ice->state.dirty |= IRIS_DIRTY_MULTISAMPLE;
}
}
ice->state.cso_rast = new_cso;