diff options
Diffstat (limited to 'src/gallium/auxiliary/util/u_surface.c')
-rw-r--r-- | src/gallium/auxiliary/util/u_surface.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_surface.c b/src/gallium/auxiliary/util/u_surface.c index 6053c111e34..c9f1c9c210f 100644 --- a/src/gallium/auxiliary/util/u_surface.c +++ b/src/gallium/auxiliary/util/u_surface.c @@ -37,6 +37,7 @@ #include "pipe/p_defines.h" #include "util/u_inlines.h" +#include "util/u_memory.h" #include "util/u_surface.h" @@ -111,3 +112,73 @@ util_destroy_rgba_surface(struct pipe_texture *texture, pipe_texture_reference(&texture, NULL); } + + +/** + * Compare pipe_framebuffer_state objects. + * \return TRUE if same, FALSE if different + */ +boolean +util_framebuffer_state_equal(const struct pipe_framebuffer_state *dst, + const struct pipe_framebuffer_state *src) +{ + unsigned i; + + if (dst->width != src->width || + dst->height != src->height) + return FALSE; + + for (i = 0; i < Elements(src->cbufs); i++) { + if (dst->cbufs[i] != src->cbufs[i]) { + return FALSE; + } + } + + if (dst->nr_cbufs != src->nr_cbufs) { + return FALSE; + } + + if (dst->zsbuf != src->zsbuf) { + return FALSE; + } + + return TRUE; +} + + +/** + * Copy framebuffer state from src to dst, updating refcounts. + */ +void +util_copy_framebuffer_state(struct pipe_framebuffer_state *dst, + const struct pipe_framebuffer_state *src) +{ + unsigned i; + + dst->width = src->width; + dst->height = src->height; + + for (i = 0; i < Elements(src->cbufs); i++) { + pipe_surface_reference(&dst->cbufs[i], src->cbufs[i]); + } + + dst->nr_cbufs = src->nr_cbufs; + + pipe_surface_reference(&dst->zsbuf, src->zsbuf); +} + + +void +util_unreference_framebuffer_state(struct pipe_framebuffer_state *fb) +{ + unsigned i; + + for (i = 0; i < fb->nr_cbufs; i++) { + pipe_surface_reference(&fb->cbufs[i], NULL); + } + + pipe_surface_reference(&fb->zsbuf, NULL); + + fb->width = fb->height = 0; + fb->nr_cbufs = 0; +} |