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lib: Add igt_wait_for_vblank() helper

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Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
This commit is contained in:
Damien Lespiau 2013-10-11 18:31:20 +01:00
parent d4e7ddf15d
commit f673775fe8
3 changed files with 44 additions and 0 deletions
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1
lib/Makefile.am
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@ -13,6 +13,7 @@ libintel_tools_la_SOURCES = \
i915_reg.h \
igt_debugfs.c \
igt_debugfs.h \
igt_display.c \
igt_display.h \
instdone.c \
instdone.h \

41
lib/igt_display.c Normal file
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@ -0,0 +1,41 @@
/*
* Copyright © 2013 Intel Corporation
*
* 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, sublicense,
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*
*/
#include <string.h>
#include "drmtest.h"
#include "igt_display.h"
void igt_wait_for_vblank(int drm_fd, enum pipe pipe)
{
drmVBlank wait_vbl;
memset(&wait_vbl, 0, sizeof(wait_vbl));
wait_vbl.request.type = pipe << DRM_VBLANK_HIGH_CRTC_SHIFT |
DRM_VBLANK_RELATIVE;
wait_vbl.request.sequence = 1;
igt_assert(drmWaitVBlank(drm_fd, &wait_vbl) == 0);
}

2
lib/igt_display.h
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@ -52,4 +52,6 @@ enum port {
};
#define port_name(p) ((p) + 'A')
void igt_wait_for_vblank(int drm_fd, enum pipe pipe);
#endif /* __IGT_DISPLAY_H__ */