diff options
Diffstat (limited to 'src/gallium/auxiliary/util/u_framebuffer.c')
| -rw-r--r-- | src/gallium/auxiliary/util/u_framebuffer.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_framebuffer.c b/src/gallium/auxiliary/util/u_framebuffer.c index 49b391d8162..f9b804673dc 100644 --- a/src/gallium/auxiliary/util/u_framebuffer.c +++ b/src/gallium/auxiliary/util/u_framebuffer.c @@ -55,6 +55,10 @@ util_framebuffer_state_equal(const struct pipe_framebuffer_state *dst, dst->height != src->height) return FALSE; + if (dst->samples != src->samples || + dst->layers != src->layers) + return FALSE; + if (dst->nr_cbufs != src->nr_cbufs) { return FALSE; } @@ -85,6 +89,9 @@ util_copy_framebuffer_state(struct pipe_framebuffer_state *dst, dst->width = src->width; dst->height = src->height; + dst->samples = src->samples; + dst->layers = src->layers; + for (i = 0; i < src->nr_cbufs; i++) pipe_surface_reference(&dst->cbufs[i], src->cbufs[i]); @@ -109,6 +116,7 @@ util_unreference_framebuffer_state(struct pipe_framebuffer_state *fb) pipe_surface_reference(&fb->zsbuf, NULL); + fb->samples = fb->layers = 0; fb->width = fb->height = 0; fb->nr_cbufs = 0; } @@ -160,6 +168,14 @@ util_framebuffer_get_num_layers(const struct pipe_framebuffer_state *fb) { unsigned i, num_layers = 0; + /** + * In the case of ARB_framebuffer_no_attachment + * we obtain the number of layers directly from + * the framebuffer state. + */ + if (!(fb->nr_cbufs || fb->zsbuf)) + return fb->layers; + for (i = 0; i < fb->nr_cbufs; i++) { if (fb->cbufs[i]) { unsigned num = fb->cbufs[i]->u.tex.last_layer - @@ -184,6 +200,20 @@ util_framebuffer_get_num_samples(const struct pipe_framebuffer_state *fb) { unsigned i; + /** + * In the case of ARB_framebuffer_no_attachment + * we obtain the number of samples directly from + * the framebuffer state. + * + * NOTE: fb->samples may wind up as zero due to memset()'s on internal + * driver structures on their initialization and so we take the + * MAX here to ensure we have a valid number of samples. However, + * if samples is legitimately not getting set somewhere + * multi-sampling will evidently break. + */ + if (!(fb->nr_cbufs || fb->zsbuf)) + return MAX2(fb->samples, 1); + for (i = 0; i < fb->nr_cbufs; i++) { if (fb->cbufs[i]) { return MAX2(1, fb->cbufs[i]->texture->nr_samples); |