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/*
* Copyright (c) 2017 Rob Clark <rclark@redhat.com>
*
* 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
* 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 <assert.h>
#include <errno.h>
#include <poll.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "common.h"
#include "drm-common.h"
static struct drm drm;
static int offscreen_run(const struct gbm *gbm, const struct egl *egl)
{
struct gbm_bo *bo = NULL;
uint32_t i = 0;
int64_t start_time, report_time, cur_time;
start_time = report_time = get_time_ns();
while (i < drm.count) {
unsigned frame = i;
struct gbm_bo *next_bo;
/* Start fps measuring on second frame, to remove the time spent
* compiling shader, etc, from the fps:
*/
if (i == 1) {
start_time = report_time = get_time_ns();
}
if (!gbm->surface) {
glBindFramebuffer(GL_FRAMEBUFFER, egl->fbs[frame % NUM_BUFFERS].fb);
}
egl->draw(i++);
if (gbm->surface) {
eglSwapBuffers(egl->display, egl->surface);
next_bo = gbm_surface_lock_front_buffer(gbm->surface);
} else {
glFinish();
next_bo = gbm->bos[frame % NUM_BUFFERS];
}
if (!next_bo) {
printf("Failed to lock frontbuffer\n");
return -1;
}
cur_time = get_time_ns();
if (cur_time > (report_time + 2 * NSEC_PER_SEC)) {
double elapsed_time = cur_time - start_time;
double secs = elapsed_time / (double)NSEC_PER_SEC;
unsigned frames = i - 1; /* first frame ignored */
printf("Rendered %u frames in %f sec (%f fps)\n",
frames, secs, (double)frames/secs);
report_time = cur_time;
}
/* release last buffer to render on again: */
if (bo && gbm->surface)
gbm_surface_release_buffer(gbm->surface, bo);
bo = next_bo;
}
finish_perfcntrs();
cur_time = get_time_ns();
double elapsed_time = cur_time - start_time;
double secs = elapsed_time / (double)NSEC_PER_SEC;
unsigned frames = i - 1; /* first frame ignored */
printf("Rendered %u frames in %f sec (%f fps)\n",
frames, secs, (double)frames/secs);
dump_perfcntrs(frames, elapsed_time);
return 0;
}
const struct drm * init_drm_offscreen(const char *device, const char *mode_str, unsigned int count)
{
int ret;
ret = init_drm_render(&drm, device, mode_str, count);
if (ret)
return NULL;
drm.run = offscreen_run;
return &drm;
}
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