static bool gfx_ctx_drm_queue_flip(void)
{
struct drm_fb *fb = NULL;
g_next_bo = gbm_surface_lock_front_buffer(g_gbm_surface);
fb = (struct drm_fb*)drm_fb_get_from_bo(g_next_bo);
if (drmModePageFlip(g_drm_fd, g_crtc_id, fb->fb_id,
DRM_MODE_PAGE_FLIP_EVENT, &waiting_for_flip) == 0)
return true;
/* Failed to queue page flip. */
return false;
}
void swap_buffers(void)
{
eglSwapBuffers(gl.display, gl.surface);
next_bo = gbm_surface_lock_front_buffer(gbm.surface);
fb = drm_fb_get_from_bo(next_bo);
waiting_for_flip = 1;
int ret = drmModePageFlip(drm.fd, drm.crtc_id, fb->fb_id,
DRM_MODE_PAGE_FLIP_EVENT, &waiting_for_flip);
if(ret) {
printf("failed to queue page flip: %s\n", strerror(errno));
exit(-1);
}
}
static void queue_flip(void)
{
g_next_bo = gbm_surface_lock_front_buffer(g_gbm_surface);
struct drm_fb *fb = drm_fb_get_from_bo(g_next_bo);
int ret = drmModePageFlip(g_drm_fd, g_crtc_id, fb->fb_id,
DRM_MODE_PAGE_FLIP_EVENT, &waiting_for_flip);
if (ret < 0)
{
RARCH_ERR("[KMS/EGL]: Failed to queue page flip.\n");
return;
}
waiting_for_flip = true;
}
static void queue_flip(void)
{
g_next_bo = gbm_surface_lock_front_buffer(g_gbm_surface);
struct drm_fb *fb = drm_fb_get_from_bo(g_next_bo);
int ret = drmModePageFlip(g_drm_fd, g_crtc_id, fb->fb_id,
DRM_MODE_PAGE_FLIP_EVENT, &waiting_for_flip);
if (ret < 0)
{
RARCH_ERR("[KMS/EGL]: Failed to queue page flip.\n");
return;
}
struct timeval tv;
gettimeofday(&tv, NULL);
flip_request_usec = (uint64_t)tv.tv_sec * 1000000 + tv.tv_usec;
waiting_for_flip = true;
}
static void queue_flip(void)
{
int ret;
struct drm_fb *fb = NULL;
gfx_ctx_drm_egl_data_t *drm = (gfx_ctx_drm_egl_data_t*)
driver.video_context_data;
drm->g_next_bo = gbm_surface_lock_front_buffer(drm->g_gbm_surface);
fb = (struct drm_fb*)drm_fb_get_from_bo(drm, drm->g_next_bo);
ret = drmModePageFlip(drm->g_drm_fd, drm->g_crtc_id, fb->fb_id,
DRM_MODE_PAGE_FLIP_EVENT, &waiting_for_flip);
if (ret < 0)
{
RARCH_ERR("[KMS/EGL]: Failed to queue page flip.\n");
return;
}
waiting_for_flip = true;
}
int DRM_PageFlip(void){
int ret;
struct gbm_bo *next_bo;
int waiting_for_flip = 1;
next_bo = gbm_surface_lock_front_buffer(gbm.surface);
fb = drm_fb_get_from_bo(next_bo);
/*
* Here you could also update drm plane layers if you want
* hw composition
*/
ret = drmModePageFlip(drm.fd, drm.crtc_id, fb->fb_id,
DRM_MODE_PAGE_FLIP_EVENT, &waiting_for_flip);
if (ret) {
printf("failed to queue page flip: %s\n", strerror(errno));
return -1;
}
while (waiting_for_flip) {
//Aquí realmente no nos interesa leer el teclado. Sólo
//hacemos el select para esperar por drm.fd
FD_ZERO (&fds);
FD_SET (0, &fds);
FD_SET (drm.fd, &fds);
ret = select(drm.fd+1, &fds, NULL, NULL, NULL);
drmHandleEvent(drm.fd, &evctx);
}
/* release last buffer to render on again: */
gbm_surface_release_buffer(gbm.surface, bo);
bo = next_bo;
return 0;
}
static bool gfx_ctx_drm_egl_set_video_mode(void *data,
unsigned width, unsigned height,
bool fullscreen)
{
static const EGLint egl_attribs_gl[] = {
DRM_EGL_ATTRIBS_BASE,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_NONE,
};
static const EGLint egl_attribs_gles[] = {
DRM_EGL_ATTRIBS_BASE,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_NONE,
};
#ifdef EGL_KHR_create_context
static const EGLint egl_attribs_gles3[] = {
DRM_EGL_ATTRIBS_BASE,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT_KHR,
EGL_NONE,
};
#endif
static const EGLint egl_attribs_vg[] = {
DRM_EGL_ATTRIBS_BASE,
EGL_RENDERABLE_TYPE, EGL_OPENVG_BIT,
EGL_NONE,
};
const EGLint *attrib_ptr;
EGLint major, minor, n, egl_attribs[16], *attr;
float refresh_mod;
int i, ret = 0;
struct sigaction sa = {{0}};
struct drm_fb *fb = NULL;
gfx_ctx_drm_egl_data_t *drm = (gfx_ctx_drm_egl_data_t*)
driver.video_context_data;
if (!drm)
return false;
sa.sa_handler = sighandler;
sa.sa_flags = SA_RESTART;
sigemptyset(&sa.sa_mask);
sigaction(SIGINT, &sa, NULL);
sigaction(SIGTERM, &sa, NULL);
switch (g_api)
{
case GFX_CTX_OPENGL_API:
attrib_ptr = egl_attribs_gl;
break;
case GFX_CTX_OPENGL_ES_API:
#ifdef EGL_KHR_create_context
if (g_major >= 3)
attrib_ptr = egl_attribs_gles3;
else
#endif
attrib_ptr = egl_attribs_gles;
break;
case GFX_CTX_OPENVG_API:
attrib_ptr = egl_attribs_vg;
break;
default:
attrib_ptr = NULL;
}
/* If we use black frame insertion,
* we fake a 60 Hz monitor for 120 Hz one, etc, so try to match that. */
refresh_mod = g_settings.video.black_frame_insertion ? 0.5f : 1.0f;
/* Find desired video mode, and use that.
* If not fullscreen, we get desired windowed size,
* which is not appropriate. */
if ((width == 0 && height == 0) || !fullscreen)
drm->g_drm_mode = &drm->g_connector->modes[0];
else
{
/* Try to match g_settings.video.refresh_rate as closely as possible.
* Lower resolutions tend to have multiple supported
* refresh rates as well.
*/
float minimum_fps_diff = 0.0f;
/* Find best match. */
for (i = 0; i < drm->g_connector->count_modes; i++)
{
if (width != drm->g_connector->modes[i].hdisplay ||
height != drm->g_connector->modes[i].vdisplay)
continue;
float diff = fabsf(refresh_mod *
drm->g_connector->modes[i].vrefresh - g_settings.video.refresh_rate);
if (!drm->g_drm_mode || diff < minimum_fps_diff)
{
drm->g_drm_mode = &drm->g_connector->modes[i];
minimum_fps_diff = diff;
}
}
}
if (!drm->g_drm_mode)
{
RARCH_ERR("[KMS/EGL]: Did not find suitable video mode for %u x %u.\n", width, height);
goto error;
}
drm->g_fb_width = drm->g_drm_mode->hdisplay;
drm->g_fb_height = drm->g_drm_mode->vdisplay;
/* Create GBM surface. */
drm->g_gbm_surface = gbm_surface_create(
drm->g_gbm_dev,
drm->g_fb_width,
drm->g_fb_height,
GBM_FORMAT_XRGB8888,
GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
if (!drm->g_gbm_surface)
{
RARCH_ERR("[KMS/EGL]: Couldn't create GBM surface.\n");
goto error;
}
drm->g_egl_dpy = eglGetDisplay((EGLNativeDisplayType)drm->g_gbm_dev);
if (!drm->g_egl_dpy)
{
RARCH_ERR("[KMS/EGL]: Couldn't get EGL display.\n");
goto error;
}
if (!eglInitialize(drm->g_egl_dpy, &major, &minor))
goto error;
if (!eglChooseConfig(drm->g_egl_dpy, attrib_ptr, &drm->g_config, 1, &n) || n != 1)
goto error;
attr = egl_fill_attribs(egl_attribs);
drm->g_egl_ctx = eglCreateContext(drm->g_egl_dpy, drm->g_config, EGL_NO_CONTEXT,
attr != egl_attribs ? egl_attribs : NULL);
if (drm->g_egl_ctx == EGL_NO_CONTEXT)
goto error;
if (drm->g_use_hw_ctx)
{
drm->g_egl_hw_ctx = eglCreateContext(drm->g_egl_dpy, drm->g_config, drm->g_egl_ctx,
attr != egl_attribs ? egl_attribs : NULL);
RARCH_LOG("[KMS/EGL]: Created shared context: %p.\n", (void*)drm->g_egl_hw_ctx);
if (drm->g_egl_hw_ctx == EGL_NO_CONTEXT)
goto error;
}
drm->g_egl_surf = eglCreateWindowSurface(drm->g_egl_dpy,
drm->g_config, (EGLNativeWindowType)drm->g_gbm_surface, NULL);
if (!drm->g_egl_surf)
goto error;
if (!eglMakeCurrent(drm->g_egl_dpy,
drm->g_egl_surf, drm->g_egl_surf, drm->g_egl_ctx))
goto error;
glClear(GL_COLOR_BUFFER_BIT);
eglSwapBuffers(drm->g_egl_dpy, drm->g_egl_surf);
drm->g_bo = gbm_surface_lock_front_buffer(drm->g_gbm_surface);
fb = drm_fb_get_from_bo(drm, drm->g_bo);
ret = drmModeSetCrtc(drm->g_drm_fd,
drm->g_crtc_id, fb->fb_id, 0, 0, &drm->g_connector_id, 1, drm->g_drm_mode);
if (ret < 0)
goto error;
return true;
error:
gfx_ctx_drm_egl_destroy_resources(drm);
if (drm)
free(drm);
return false;
}
int init_egl(void) {
EGLint major, minor, n;
static const EGLint context_attribs[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
static const EGLint config_attribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_ALPHA_SIZE, 0,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_NONE
};
gl.display = eglGetDisplay(gbm.dev);
if (!eglInitialize(gl.display, &major, &minor)) {
printf("failed to initialize\n");
return -1;
}
printf("Using display %p with EGL version %d.%d\n",
gl.display, major, minor);
printf("EGL Version \"%s\"\n", eglQueryString(gl.display, EGL_VERSION));
printf("EGL Vendor \"%s\"\n", eglQueryString(gl.display, EGL_VENDOR));
printf("EGL Extensions \"%s\"\n", eglQueryString(gl.display, EGL_EXTENSIONS));
if (!eglBindAPI(EGL_OPENGL_ES_API)) {
printf("failed to bind api EGL_OPENGL_ES_API\n");
return -1;
}
if (!eglChooseConfig(gl.display, config_attribs, &gl.config, 1, &n) || n != 1) {
printf("failed to choose config: %d\n", n);
return -1;
}
gl.context = eglCreateContext(gl.display, gl.config,
EGL_NO_CONTEXT, context_attribs);
if (gl.context == NULL) {
printf("failed to create context\n");
return -1;
}
gl.surface = eglCreateWindowSurface(gl.display, gl.config, gbm.surface, NULL);
if (gl.surface == EGL_NO_SURFACE) {
printf("failed to create egl surface\n");
return -1;
}
/* connect the context to the surface */
eglMakeCurrent(gl.display, gl.surface, gl.surface, gl.context);
//MAC Sacar esto a otra función
int ret;
eglSwapBuffers(gl.display, gl.surface);
bo = gbm_surface_lock_front_buffer(gbm.surface);
fb = drm_fb_get_from_bo(bo);
/* set mode: */
ret = drmModeSetCrtc(drm.fd, drm.crtc_id, fb->fb_id, 0, 0,
&drm.connector_id, 1, drm.mode);
if (ret) {
printf("failed to set mode: %s\n", strerror(errno));
return ret;
}
//MAC Fin bloque
return 0;
}
static bool gfx_ctx_set_video_mode(
unsigned width, unsigned height,
bool fullscreen)
{
if (g_inited)
return false;
int ret = 0;
struct drm_fb *fb = NULL;
struct sigaction sa = {{0}};
sa.sa_handler = sighandler;
sa.sa_flags = SA_RESTART;
sigemptyset(&sa.sa_mask);
sigaction(SIGINT, &sa, NULL);
sigaction(SIGTERM, &sa, NULL);
#define EGL_ATTRIBS_BASE \
EGL_SURFACE_TYPE, EGL_WINDOW_BIT, \
EGL_RED_SIZE, 1, \
EGL_GREEN_SIZE, 1, \
EGL_BLUE_SIZE, 1, \
EGL_ALPHA_SIZE, 0, \
EGL_DEPTH_SIZE, 0
static const EGLint egl_attribs_gl[] = {
EGL_ATTRIBS_BASE,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_NONE,
};
static const EGLint egl_attribs_gles[] = {
EGL_ATTRIBS_BASE,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_NONE,
};
static const EGLint egl_attribs_vg[] = {
EGL_ATTRIBS_BASE,
EGL_RENDERABLE_TYPE, EGL_OPENVG_BIT,
EGL_NONE,
};
// GLES 2.0. Don't use for any other API.
static const EGLint gles_context_attribs[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
const EGLint *attrib_ptr;
switch (g_api)
{
case GFX_CTX_OPENGL_API:
attrib_ptr = egl_attribs_gl;
break;
case GFX_CTX_OPENGL_ES_API:
attrib_ptr = egl_attribs_gles;
break;
case GFX_CTX_OPENVG_API:
attrib_ptr = egl_attribs_vg;
break;
default:
attrib_ptr = NULL;
}
g_egl_dpy = eglGetDisplay((EGLNativeDisplayType)g_gbm_dev);
if (!g_egl_dpy)
{
RARCH_ERR("[KMS/EGL]: Couldn't get EGL display.\n");
goto error;
}
EGLint major, minor;
if (!eglInitialize(g_egl_dpy, &major, &minor))
goto error;
EGLint n;
if (!eglChooseConfig(g_egl_dpy, attrib_ptr, &g_config, 1, &n) || n != 1)
goto error;
g_egl_ctx = eglCreateContext(g_egl_dpy, g_config, EGL_NO_CONTEXT, (g_api == GFX_CTX_OPENGL_ES_API) ? gles_context_attribs : NULL);
if (!g_egl_ctx)
goto error;
g_egl_surf = eglCreateWindowSurface(g_egl_dpy, g_config, (EGLNativeWindowType)g_gbm_surface, NULL);
if (!g_egl_surf)
goto error;
if (!eglMakeCurrent(g_egl_dpy, g_egl_surf, g_egl_surf, g_egl_ctx))
goto error;
glClear(GL_COLOR_BUFFER_BIT);
eglSwapBuffers(g_egl_dpy, g_egl_surf);
g_bo = gbm_surface_lock_front_buffer(g_gbm_surface);
fb = drm_fb_get_from_bo(g_bo);
ret = drmModeSetCrtc(g_drm_fd, g_crtc_id, fb->fb_id, 0, 0, &g_connector_id, 1, g_drm_mode);
if (ret < 0)
goto error;
g_inited = true;
return true;
error:
gfx_ctx_destroy();
return false;
}
static int atomic_run(const struct gbm *gbm, const struct egl *egl)
{
struct gbm_bo *bo = NULL;
struct drm_fb *fb;
uint32_t i = 0;
uint32_t flags = DRM_MODE_ATOMIC_NONBLOCK;
struct timeval timeout;
fd_set fds;
int ret;
if (egl_check(egl, eglDupNativeFenceFDANDROID) ||
egl_check(egl, eglCreateSyncKHR) ||
egl_check(egl, eglDestroySyncKHR) ||
egl_check(egl, eglWaitSyncKHR) ||
egl_check(egl, eglClientWaitSyncKHR))
return -1;
/* Allow a modeset change for the first commit only. */
flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
while (1) {
struct gbm_bo *next_bo;
EGLSyncKHR gpu_fence = NULL; /* out-fence from gpu, in-fence to kms */
EGLSyncKHR kms_fence = NULL; /* in-fence to gpu, out-fence from kms */
if (drm.kms_out_fence_fd != -1) {
kms_fence = create_fence(egl, drm.kms_out_fence_fd);
assert(kms_fence);
/* driver now has ownership of the fence fd: */
drm.kms_out_fence_fd = -1;
/* wait "on the gpu" (ie. this won't necessarily block, but
* will block the rendering until fence is signaled), until
* the previous pageflip completes so we don't render into
* the buffer that is still on screen.
*/
egl->eglWaitSyncKHR(egl->display, kms_fence, 0);
}
egl->draw(i++);
/* insert fence to be singled in cmdstream.. this fence will be
* signaled when gpu rendering done
*/
gpu_fence = create_fence(egl, EGL_NO_NATIVE_FENCE_FD_ANDROID);
assert(gpu_fence);
eglSwapBuffers(egl->display, egl->surface);
/* after swapbuffers, gpu_fence should be flushed, so safe
* to get fd:
*/
drm.kms_in_fence_fd = egl->eglDupNativeFenceFDANDROID(egl->display, gpu_fence);
egl->eglDestroySyncKHR(egl->display, gpu_fence);
assert(drm.kms_in_fence_fd != -1);
next_bo = gbm_surface_lock_front_buffer(gbm->surface);
if (!next_bo) {
printf("Failed to lock frontbuffer\n");
return -1;
}
fb = drm_fb_get_from_bo(next_bo);
if (!fb) {
printf("Failed to get a new framebuffer BO\n");
return -1;
}
if (kms_fence) {
EGLint status;
/* Wait on the CPU side for the _previous_ commit to
* complete before we post the flip through KMS, as
* atomic will reject the commit if we post a new one
* whilst the previous one is still pending.
*/
do {
status = egl->eglClientWaitSyncKHR(egl->display,
kms_fence,
0,
EGL_FOREVER_KHR);
} while (status != EGL_CONDITION_SATISFIED_KHR);
egl->eglDestroySyncKHR(egl->display, kms_fence);
}
/*
* Here you could also update drm plane layers if you want
* hw composition
*/
ret = drm_atomic_commit(fb->fb_id, flags);
if (ret) {
printf("failed to commit: %s\n", strerror(errno));
return -1;
}
/* release last buffer to render on again: */
if (bo)
gbm_surface_release_buffer(gbm->surface, bo);
bo = next_bo;
/* Allow a modeset change for the first commit only. */
flags &= ~(DRM_MODE_ATOMIC_ALLOW_MODESET);
/* watch for user interruption */
FD_ZERO(&fds);
FD_SET(0, &fds);
memset(&timeout, 0, sizeof(timeout));
ret = select(1, &fds, NULL, NULL, &timeout);
if (ret < 0) {
printf("select() failed: %s\n", strerror(errno));
break;
}
/*
* select() will immediately timeout if there was no user
* interrupt because of the 0 timeout. However, that's an
* expected situation, not an error, so we just ignore it
* here.
*/
if (FD_ISSET(0, &fds)) {
printf("user interrupted!\n");
break;
}
}
return ret;
}
int init_egl_drm()
{
fd_set fds;
drmEventContext evctx = {
.version = DRM_EVENT_CONTEXT_VERSION,
.vblank_handler = 0,
.page_flip_handler = page_flip_handler,
};
struct gbm_bo *bo;
struct drm_fb *fb;
ret = init_drm();
if (ret) {
printf("failed to initialize DRM\n");
return ret;
}
printf("### Primary display => ConnectorId = %d, Resolution = %dx%d\n",
drm.connector_id[DISP_ID], drm.mode[DISP_ID]->hdisplay,
drm.mode[DISP_ID]->vdisplay);
FD_ZERO(&fds);
FD_SET(drm.fd, &fds);
ret = init_gbm();
if (ret) {
printf("failed to initialize GBM\n");
return ret;
}
//Initialise egl regularly here
}
void egl_drm_draw_flip()
{
/* set mode: */
if (all_display) {
for (i=0; i<drm.ndisp; i++) {
ret = drmModeSetCrtc(drm.fd, drm.crtc_id[i], fb->fb_id, 0, 0,
&drm.connector_id[i], 1, drm.mode[i]);
if (ret) {
printf("display %d failed to set mode: %s\n", i, strerror(errno));
return ret;
}
}
} else {
ret = drmModeSetCrtc(drm.fd, drm.crtc_id[DISP_ID], fb->fb_id,
0, 0, &drm.connector_id[DISP_ID], 1, drm.mode[DISP_ID]);
if (ret) {
printf("display %d failed to set mode: %s\n", DISP_ID, strerror(errno));
return ret;
}
}
//Draw call here
//Swapping is involved
next_bo = gbm_surface_lock_front_buffer(gbm.surface);
fb = drm_fb_get_from_bo(next_bo);
/*
* Here you could also update drm plane layers if you want
* hw composition
*/
ret = drmModePageFlip(drm.fd, drm.crtc_id[DISP_ID], fb->fb_id,
DRM_MODE_PAGE_FLIP_EVENT, &waiting_for_flip);
if (ret) {
printf("failed to queue page flip: %s\n", strerror(errno));
return -1;
}
while (waiting_for_flip) {
ret = select(drm.fd + 1, &fds, NULL, NULL, NULL);
if (ret < 0) {
printf("select err: %s\n", strerror(errno));
return ret;
} else if (ret == 0) {
printf("select timeout!\n");
return -1;
} else if (FD_ISSET(0, &fds)) {
continue;
}
drmHandleEvent(drm.fd, &evctx);
}
/* release last buffer to render on again: */
gbm_surface_release_buffer(gbm.surface, bo);
bo = next_bo;
}
static bool gfx_ctx_set_video_mode(void *data,
unsigned width, unsigned height,
bool fullscreen)
{
if (g_inited)
return false;
int i;
int ret = 0;
struct drm_fb *fb = NULL;
struct sigaction sa = {{0}};
sa.sa_handler = sighandler;
sa.sa_flags = SA_RESTART;
sigemptyset(&sa.sa_mask);
sigaction(SIGINT, &sa, NULL);
sigaction(SIGTERM, &sa, NULL);
#define EGL_ATTRIBS_BASE \
EGL_SURFACE_TYPE, EGL_WINDOW_BIT, \
EGL_RED_SIZE, 1, \
EGL_GREEN_SIZE, 1, \
EGL_BLUE_SIZE, 1, \
EGL_ALPHA_SIZE, 0, \
EGL_DEPTH_SIZE, 0
static const EGLint egl_attribs_gl[] = {
EGL_ATTRIBS_BASE,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_NONE,
};
static const EGLint egl_attribs_gles[] = {
EGL_ATTRIBS_BASE,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_NONE,
};
#ifdef EGL_KHR_create_context
static const EGLint egl_attribs_gles3[] = {
EGL_ATTRIBS_BASE,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT_KHR,
EGL_NONE,
};
#endif
static const EGLint egl_attribs_vg[] = {
EGL_ATTRIBS_BASE,
EGL_RENDERABLE_TYPE, EGL_OPENVG_BIT,
EGL_NONE,
};
const EGLint *attrib_ptr;
switch (g_api)
{
case GFX_CTX_OPENGL_API:
attrib_ptr = egl_attribs_gl;
break;
case GFX_CTX_OPENGL_ES_API:
#ifdef EGL_KHR_create_context
if (g_major >= 3)
attrib_ptr = egl_attribs_gles3;
else
#endif
attrib_ptr = egl_attribs_gles;
break;
case GFX_CTX_OPENVG_API:
attrib_ptr = egl_attribs_vg;
break;
default:
attrib_ptr = NULL;
}
// Find desired video mode, and use that.
// If not fullscreen, we get desired windowed size, which is not appropriate.
if ((width == 0 && height == 0) || !fullscreen)
g_drm_mode = &g_connector->modes[0];
else
{
// Try to match g_settings.video.refresh_rate as closely as possible.
// Lower resolutions tend to have multiple supported refresh rates as well.
float minimum_fps_diff = 0.0f;
// Find best match.
for (i = 0; i < g_connector->count_modes; i++)
{
if (width != g_connector->modes[i].hdisplay || height != g_connector->modes[i].vdisplay)
continue;
if (!g_drm_mode)
{
g_drm_mode = &g_connector->modes[i];
minimum_fps_diff = g_drm_mode->vrefresh - g_settings.video.refresh_rate;
}
else
{
float diff = g_connector->modes[i].vrefresh - g_settings.video.refresh_rate;
if (diff < minimum_fps_diff)
{
g_drm_mode = &g_connector->modes[i];
minimum_fps_diff = diff;
}
}
}
}
if (!g_drm_mode)
{
RARCH_ERR("[KMS/EGL]: Did not find suitable video mode for %u x %u.\n", width, height);
goto error;
}
g_fb_width = g_drm_mode->hdisplay;
g_fb_height = g_drm_mode->vdisplay;
// Create GBM surface.
g_gbm_surface = gbm_surface_create(g_gbm_dev,
g_fb_width, g_fb_height,
GBM_FORMAT_XRGB8888,
GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
if (!g_gbm_surface)
{
RARCH_ERR("[KMS/EGL]: Couldn't create GBM surface.\n");
goto error;
}
g_egl_dpy = eglGetDisplay((EGLNativeDisplayType)g_gbm_dev);
if (!g_egl_dpy)
{
RARCH_ERR("[KMS/EGL]: Couldn't get EGL display.\n");
goto error;
}
EGLint major, minor;
if (!eglInitialize(g_egl_dpy, &major, &minor))
goto error;
EGLint n;
if (!eglChooseConfig(g_egl_dpy, attrib_ptr, &g_config, 1, &n) || n != 1)
goto error;
EGLint egl_attribs[16];
EGLint *attr = egl_attribs;
attr = egl_fill_attribs(attr);
g_egl_ctx = eglCreateContext(g_egl_dpy, g_config, EGL_NO_CONTEXT,
attr != egl_attribs ? egl_attribs : NULL);
if (g_egl_ctx == EGL_NO_CONTEXT)
goto error;
if (g_use_hw_ctx)
{
g_egl_hw_ctx = eglCreateContext(g_egl_dpy, g_config, g_egl_ctx,
attr != egl_attribs ? egl_attribs : NULL);
RARCH_LOG("[KMS/EGL]: Created shared context: %p.\n", (void*)g_egl_hw_ctx);
if (g_egl_hw_ctx == EGL_NO_CONTEXT)
goto error;
}
g_egl_surf = eglCreateWindowSurface(g_egl_dpy, g_config, (EGLNativeWindowType)g_gbm_surface, NULL);
if (!g_egl_surf)
goto error;
if (!eglMakeCurrent(g_egl_dpy, g_egl_surf, g_egl_surf, g_egl_ctx))
goto error;
glClear(GL_COLOR_BUFFER_BIT);
eglSwapBuffers(g_egl_dpy, g_egl_surf);
g_bo = gbm_surface_lock_front_buffer(g_gbm_surface);
fb = drm_fb_get_from_bo(g_bo);
ret = drmModeSetCrtc(g_drm_fd, g_crtc_id, fb->fb_id, 0, 0, &g_connector_id, 1, g_drm_mode);
if (ret < 0)
goto error;
g_inited = true;
return true;
error:
gfx_ctx_destroy(data);
return false;
}
static bool gfx_ctx_drm_set_video_mode(void *data,
unsigned width, unsigned height,
bool fullscreen)
{
float refresh_mod;
int i, ret = 0;
struct drm_fb *fb = NULL;
settings_t *settings = config_get_ptr();
gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data;
if (!drm)
return false;
frontend_driver_install_signal_handler();
/* If we use black frame insertion,
* we fake a 60 Hz monitor for 120 Hz one,
* etc, so try to match that. */
refresh_mod = settings->video.black_frame_insertion
? 0.5f : 1.0f;
/* Find desired video mode, and use that.
* If not fullscreen, we get desired windowed size,
* which is not appropriate. */
if ((width == 0 && height == 0) || !fullscreen)
g_drm_mode = &g_drm_connector->modes[0];
else
{
/* Try to match settings->video.refresh_rate
* as closely as possible.
*
* Lower resolutions tend to have multiple supported
* refresh rates as well.
*/
float minimum_fps_diff = 0.0f;
/* Find best match. */
for (i = 0; i < g_drm_connector->count_modes; i++)
{
float diff;
if (width != g_drm_connector->modes[i].hdisplay ||
height != g_drm_connector->modes[i].vdisplay)
continue;
diff = fabsf(refresh_mod * g_drm_connector->modes[i].vrefresh
- settings->video.refresh_rate);
if (!g_drm_mode || diff < minimum_fps_diff)
{
g_drm_mode = &g_drm_connector->modes[i];
minimum_fps_diff = diff;
}
}
}
if (!g_drm_mode)
{
RARCH_ERR("[KMS/EGL]: Did not find suitable video mode for %u x %u.\n",
width, height);
goto error;
}
drm->fb_width = g_drm_mode->hdisplay;
drm->fb_height = g_drm_mode->vdisplay;
/* Create GBM surface. */
g_gbm_surface = gbm_surface_create(
g_gbm_dev,
drm->fb_width,
drm->fb_height,
GBM_FORMAT_XRGB8888,
GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
if (!g_gbm_surface)
{
RARCH_ERR("[KMS/EGL]: Couldn't create GBM surface.\n");
goto error;
}
switch (drm_api)
{
case GFX_CTX_OPENGL_API:
case GFX_CTX_OPENGL_ES_API:
case GFX_CTX_OPENVG_API:
#ifdef HAVE_EGL
if (!gfx_ctx_drm_egl_set_video_mode(drm))
goto error;
#endif
break;
case GFX_CTX_NONE:
default:
break;
}
g_bo = gbm_surface_lock_front_buffer(g_gbm_surface);
fb = drm_fb_get_from_bo(g_bo);
ret = drmModeSetCrtc(g_drm_fd,
g_crtc_id, fb->fb_id, 0, 0, &g_connector_id, 1, g_drm_mode);
if (ret < 0)
goto error;
return true;
error:
gfx_ctx_drm_destroy_resources(drm);
if (drm)
free(drm);
return false;
}
int main(int argc, char *argv[])
{
struct opt_data opts; optproc(argc, argv, &opts);
if(audio_init(&opts) < 0) exit(1);
if(opts.w < 0 && opts.h < 0) opts.w = opts.h = 512;
else if(opts.w < 0) opts.w = opts.h;
else if(opts.h < 0) opts.h = opts.w;
int ret;
ret = init_drm(&opts, 512);
if (ret) {
printf("failed to initialize DRM\n");
return ret;
}
ret = init_gbm();
if (ret) {
printf("failed to initialize GBM\n");
return ret;
}
ret = init_egl();
if (ret) {
printf("failed to initialize EGL\n");
return ret;
}
// call init_gl
//init_gl(&opts, drm.mode->hdisplay, drm.mode->vdisplay);
init_gl(&opts, opts.w, opts.h); //TODO: better dealing with our great big screen
eglSwapBuffers(gl.display, gl.surface);
struct gbm_bo *bo = gbm_surface_lock_front_buffer(gbm.surface);
fb = drm_fb_get_from_bo(bo);
/* set mode: */
ret = drmModeSetCrtc(drm.fd, drm.crtc_id, fb->fb_id, 0, 0,
&drm.connector_id, 1, drm.mode);
if (ret) {
printf("failed to set mode: %s\n", strerror(errno));
return ret;
}
// turn off line buffering on input and echoing of characters
struct termios term;
tcgetattr(STDIN_FILENO, &save_term);
tcgetattr(STDIN_FILENO, &term);
term.c_lflag &= ~(ICANON|ECHO);
tcsetattr(STDIN_FILENO, TCSANOW, &term);
atexit(shutdown_cleanup);
drmVBlank vbl;
/* Get current count first hopefully also sync up with blank too*/
vbl.request.type = DRM_VBLANK_RELATIVE;
vbl.request.sequence = 1;
ret = drmWaitVBlank(drm.fd, &vbl);
if (ret != 0) {
printf("drmWaitVBlank (relative, event) failed ret: %i\n", ret);
return -1;
}
printf("starting msc: %d\n", vbl.request.sequence);
/* Queue an event for frame + 1 */
vbl.request.type = DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT;
vbl.request.sequence = 1;
vbl.request.signal = NULL;
ret = drmWaitVBlank(drm.fd, &vbl);
if (ret != 0) {
printf("drmWaitVBlank (relative, event) failed ret: %i\n", ret);
return -1;
}
struct pollfd pfds[] = {
{drm.fd, POLLIN | POLLPRI, 0 },
{STDIN_FILENO, POLLIN, 0 },
};
int debug_maxsrc = 0, debug_pal = 0, show_mandel = 0, show_fps_hist = 0;
bool done = false;
while (!done) {
render_frame(debug_maxsrc, debug_pal, show_mandel, show_fps_hist);
while (waiting_for_flip) { // TODO: input handling
ret = poll(pfds, 2, -1);
if (ret < 0) {
printf("poll err: %s\n", strerror(errno));
return ret;
} else if (ret == 0) {
printf("poll timeout!\n");
done = true;
break;
}
if (pfds[1].revents) {
char buf[128];
int cnt = read(STDIN_FILENO, buf, sizeof(buf));
if(buf[0] == 27) done = true;
else if(buf[0] == '1') debug_maxsrc = !debug_maxsrc;
else if(buf[0] == '2') debug_pal = !debug_pal;
else if(buf[0] == '3') show_mandel = !show_mandel;
else if(buf[0] == '4') show_fps_hist = !show_fps_hist;
//continue;
}
if(pfds[0].revents)
drmHandleEvent(drm.fd, &evctx);
}
/* release last buffer to render on again: */
gbm_surface_release_buffer(gbm.surface, bo);
bo = next_bo;
}
audio_shutdown();
return ret;
}
