diff options
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_framebuffer.c')
-rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_framebuffer.c | 296 |
1 files changed, 148 insertions, 148 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_framebuffer.c b/mesalib/src/gallium/auxiliary/util/u_framebuffer.c index 8d89c81c7..7803ec6a8 100644 --- a/mesalib/src/gallium/auxiliary/util/u_framebuffer.c +++ b/mesalib/src/gallium/auxiliary/util/u_framebuffer.c @@ -1,148 +1,148 @@ -/**************************************************************************
- *
- * Copyright 2009-2010 VMware, Inc. All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-/**
- * @file
- * Framebuffer utility functions.
- *
- * @author Brian Paul
- */
-
-
-#include "pipe/p_screen.h"
-#include "pipe/p_state.h"
-#include "pipe/p_defines.h"
-#include "util/u_inlines.h"
-
-#include "util/u_memory.h"
-#include "util/u_framebuffer.h"
-
-
-/**
- * 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 < src->nr_cbufs; i++)
- pipe_surface_reference(&dst->cbufs[i], src->cbufs[i]);
-
- for (i = src->nr_cbufs; i < dst->nr_cbufs; i++)
- pipe_surface_reference(&dst->cbufs[i], NULL);
-
- 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;
-}
-
-
-/* Where multiple sizes are allowed for framebuffer surfaces, find the
- * minimum width and height of all bound surfaces.
- */
-boolean
-util_framebuffer_min_size(const struct pipe_framebuffer_state *fb,
- unsigned *width,
- unsigned *height)
-{
- unsigned w = ~0;
- unsigned h = ~0;
- unsigned i;
-
- for (i = 0; i < fb->nr_cbufs; i++) {
- w = MIN2(w, fb->cbufs[i]->width);
- h = MIN2(h, fb->cbufs[i]->height);
- }
-
- if (fb->zsbuf) {
- w = MIN2(w, fb->zsbuf->width);
- h = MIN2(h, fb->zsbuf->height);
- }
-
- if (w == ~0) {
- *width = 0;
- *height = 0;
- return FALSE;
- }
- else {
- *width = w;
- *height = h;
- return TRUE;
- }
-}
+/************************************************************************** + * + * Copyright 2009-2010 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * @file + * Framebuffer utility functions. + * + * @author Brian Paul + */ + + +#include "pipe/p_screen.h" +#include "pipe/p_state.h" +#include "pipe/p_defines.h" +#include "util/u_inlines.h" + +#include "util/u_memory.h" +#include "util/u_framebuffer.h" + + +/** + * 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 < src->nr_cbufs; i++) + pipe_surface_reference(&dst->cbufs[i], src->cbufs[i]); + + for (i = src->nr_cbufs; i < dst->nr_cbufs; i++) + pipe_surface_reference(&dst->cbufs[i], NULL); + + 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; +} + + +/* Where multiple sizes are allowed for framebuffer surfaces, find the + * minimum width and height of all bound surfaces. + */ +boolean +util_framebuffer_min_size(const struct pipe_framebuffer_state *fb, + unsigned *width, + unsigned *height) +{ + unsigned w = ~0; + unsigned h = ~0; + unsigned i; + + for (i = 0; i < fb->nr_cbufs; i++) { + w = MIN2(w, fb->cbufs[i]->width); + h = MIN2(h, fb->cbufs[i]->height); + } + + if (fb->zsbuf) { + w = MIN2(w, fb->zsbuf->width); + h = MIN2(h, fb->zsbuf->height); + } + + if (w == ~0) { + *width = 0; + *height = 0; + return FALSE; + } + else { + *width = w; + *height = h; + return TRUE; + } +} |