diff options
| -rw-r--r-- | src/gallium/auxiliary/cso_cache/cso_context.c | 18 | ||||
| -rw-r--r-- | src/gallium/auxiliary/cso_cache/cso_context.h | 2 |
2 files changed, 20 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/cso_cache/cso_context.c b/src/gallium/auxiliary/cso_cache/cso_context.c index 79ae75306bf..2d6540d470d 100644 --- a/src/gallium/auxiliary/cso_cache/cso_context.c +++ b/src/gallium/auxiliary/cso_cache/cso_context.c @@ -674,6 +674,24 @@ void cso_set_viewport(struct cso_context *ctx, } } +/** + * Setup viewport state for given width and height (position is always (0,0)). + * Invert the Y axis if 'invert' is true. + */ +void +cso_set_viewport_dims(struct cso_context *ctx, + float width, float height, boolean invert) +{ + struct pipe_viewport_state vp; + vp.scale[0] = width * 0.5f; + vp.scale[1] = height * (invert ? -0.5f : 0.5f); + vp.scale[2] = 0.5f; + vp.translate[0] = 0.5f * width; + vp.translate[1] = 0.5f * height; + vp.translate[2] = 0.5f; + cso_set_viewport(ctx, &vp); +} + void cso_save_viewport(struct cso_context *ctx) { ctx->vp_saved = ctx->vp; diff --git a/src/gallium/auxiliary/cso_cache/cso_context.h b/src/gallium/auxiliary/cso_cache/cso_context.h index ec9112b493a..83ce60e69fb 100644 --- a/src/gallium/auxiliary/cso_cache/cso_context.h +++ b/src/gallium/auxiliary/cso_cache/cso_context.h @@ -163,6 +163,8 @@ void cso_restore_framebuffer(struct cso_context *cso); void cso_set_viewport(struct cso_context *cso, const struct pipe_viewport_state *vp); +void cso_set_viewport_dims(struct cso_context *ctx, + float width, float height, boolean invert); void cso_save_viewport(struct cso_context *cso); void cso_restore_viewport(struct cso_context *cso); |