int main(int argc, char **argv)
{
struct exynos_device *dev;
struct exynos_bo *bo, *src;
struct connector con;
unsigned int fb_id;
uint32_t handles[4] = {0}, pitches[4] = {0}, offsets[4] = {0};
drmModeRes *resources;
int ret, fd, c;
memset(&con, 0, sizeof(struct connector));
if (argc != 3) {
usage(argv[0]);
return -EINVAL;
}
while ((c = getopt(argc, argv, optstr)) != -1) {
switch (c) {
case 's':
con.crtc = -1;
if (sscanf(optarg, "%d:0x%64s",
&con.id,
con.mode_str) != 2 &&
sscanf(optarg, "%d@%d:%64s",
&con.id,
&con.crtc,
con.mode_str) != 3)
usage(argv[0]);
break;
default:
usage(argv[0]);
return -EINVAL;
}
}
fd = drmOpen(DRM_MODULE_NAME, NULL);
if (fd < 0) {
fprintf(stderr, "failed to open.\n");
return fd;
}
dev = exynos_device_create(fd);
if (!dev) {
drmClose(dev->fd);
return -EFAULT;
}
resources = drmModeGetResources(dev->fd);
if (!resources) {
fprintf(stderr, "drmModeGetResources failed: %s\n",
strerror(errno));
ret = -EFAULT;
goto err_drm_close;
}
connector_find_mode(dev->fd, &con, resources);
drmModeFreeResources(resources);
if (!con.mode) {
fprintf(stderr, "failed to find usable connector\n");
ret = -EFAULT;
goto err_drm_close;
}
screen_width = con.mode->hdisplay;
screen_height = con.mode->vdisplay;
if (screen_width == 0 || screen_height == 0) {
fprintf(stderr, "failed to find sane resolution on connector\n");
ret = -EFAULT;
goto err_drm_close;
}
printf("screen width = %d, screen height = %d\n", screen_width,
screen_height);
bo = exynos_create_buffer(dev, screen_width * screen_height * 4, 0);
if (!bo) {
ret = -EFAULT;
goto err_drm_close;
}
handles[0] = bo->handle;
pitches[0] = screen_width * 4;
offsets[0] = 0;
ret = drmModeAddFB2(dev->fd, screen_width, screen_height,
DRM_FORMAT_RGBA8888, handles,
pitches, offsets, &fb_id, 0);
if (ret < 0)
goto err_destroy_buffer;
con.plane_zpos = -1;
memset(bo->vaddr, 0xff, screen_width * screen_height * 4);
ret = drm_set_crtc(dev, &con, fb_id);
if (ret < 0)
goto err_rm_fb;
ret = test_case.solid_fill(dev, bo);
if (ret < 0) {
fprintf(stderr, "failed to solid fill operation.\n");
goto err_rm_fb;
}
wait_for_user_input(0);
src = exynos_create_buffer(dev, screen_width * screen_height * 4, 0);
if (!src) {
ret = -EFAULT;
goto err_rm_fb;
}
ret = test_case.copy(dev, src, bo, G2D_IMGBUF_GEM);
if (ret < 0) {
fprintf(stderr, "failed to test copy operation.\n");
goto err_free_src;
}
wait_for_user_input(0);
ret = test_case.copy_with_scale(dev, src, bo, G2D_IMGBUF_GEM);
if (ret < 0) {
fprintf(stderr, "failed to test copy and scale operation.\n");
goto err_free_src;
}
wait_for_user_input(0);
ret = test_case.checkerboard(dev, src, bo, G2D_IMGBUF_GEM);
if (ret < 0) {
fprintf(stderr, "failed to issue checkerboard test.\n");
goto err_free_src;
}
wait_for_user_input(1);
/*
* The blend test uses the userptr functionality of exynos-drm, which
* is currently not safe to use. If the kernel hasn't been build with
* exynos-iommu support, then the blend test is going to produce (kernel)
* memory corruption, eventually leading to a system crash.
*
* Disable the test for now, until the kernel code has been sanitized.
*/
#if 0
ret = test_case.blend(dev, src, bo, G2D_IMGBUF_USERPTR);
if (ret < 0)
fprintf(stderr, "failed to test blend operation.\n");
getchar();
#endif
err_free_src:
if (src)
exynos_destroy_buffer(src);
err_rm_fb:
drmModeRmFB(dev->fd, fb_id);
err_destroy_buffer:
exynos_destroy_buffer(bo);
err_drm_close:
drmClose(dev->fd);
exynos_device_destroy(dev);
return 0;
}
static Bool
ms_do_pageflip(ScreenPtr screen,
PixmapPtr new_front,
struct ms_present_vblank_event *event,
int ref_crtc_vblank_pipe,
Bool async)
{
#ifndef GLAMOR_HAS_GBM
return FALSE;
#else
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
modesettingPtr ms = modesettingPTR(scrn);
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
drmmode_bo new_front_bo;
uint32_t flags;
int i;
struct ms_flipdata *flipdata;
glamor_block_handler(screen);
new_front_bo.gbm = glamor_gbm_bo_from_pixmap(screen, new_front);
new_front_bo.dumb = NULL;
if (!new_front_bo.gbm) {
xf86DrvMsg(scrn->scrnIndex, X_ERROR,
"Failed to get GBM bo for flip to new front.\n");
return FALSE;
}
flipdata = calloc(1, sizeof(struct ms_flipdata));
if (!flipdata) {
drmmode_bo_destroy(&ms->drmmode, &new_front_bo);
xf86DrvMsg(scrn->scrnIndex, X_ERROR,
"Failed to allocate flipdata.\n");
return FALSE;
}
flipdata->event = event;
flipdata->screen = screen;
/*
* Take a local reference on flipdata.
* if the first flip fails, the sequence abort
* code will free the crtc flip data, and drop
* it's reference which would cause this to be
* freed when we still required it.
*/
flipdata->flip_count++;
/* Create a new handle for the back buffer */
flipdata->old_fb_id = ms->drmmode.fb_id;
if (drmModeAddFB(ms->fd, scrn->virtualX, scrn->virtualY,
scrn->depth, scrn->bitsPerPixel,
drmmode_bo_get_pitch(&new_front_bo),
drmmode_bo_get_handle(&new_front_bo), &ms->drmmode.fb_id)) {
goto error_out;
}
drmmode_bo_destroy(&ms->drmmode, &new_front_bo);
flags = DRM_MODE_PAGE_FLIP_EVENT;
if (async)
flags |= DRM_MODE_PAGE_FLIP_ASYNC;
/* Queue flips on all enabled CRTCs.
*
* Note that if/when we get per-CRTC buffers, we'll have to update this.
* Right now it assumes a single shared fb across all CRTCs, with the
* kernel fixing up the offset of each CRTC as necessary.
*
* Also, flips queued on disabled or incorrectly configured displays
* may never complete; this is a configuration error.
*/
for (i = 0; i < config->num_crtc; i++) {
xf86CrtcPtr crtc = config->crtc[i];
if (!ms_crtc_on(crtc))
continue;
if (!queue_flip_on_crtc(screen, crtc, flipdata,
ref_crtc_vblank_pipe,
flags)) {
goto error_undo;
}
}
/*
* Do we have more than our local reference,
* if so and no errors, then drop our local
* reference and return now.
*/
if (flipdata->flip_count > 1) {
flipdata->flip_count--;
return TRUE;
}
error_undo:
/*
* Have we just got the local reference?
* free the framebuffer if so since nobody successfully
* submitted anything
*/
if (flipdata->flip_count == 1) {
drmModeRmFB(ms->fd, ms->drmmode.fb_id);
ms->drmmode.fb_id = flipdata->old_fb_id;
}
error_out:
xf86DrvMsg(scrn->scrnIndex, X_WARNING, "Page flip failed: %s\n",
strerror(errno));
/* if only the local reference - free the structure,
* else drop the local reference and return */
if (flipdata->flip_count == 1)
free(flipdata);
else
flipdata->flip_count--;
return FALSE;
#endif /* GLAMOR_HAS_GBM */
}
static Bool
nouveau_present_flip_exec(ScrnInfoPtr scrn, uint64_t event_id, int sync,
uint64_t target_msc, PixmapPtr pixmap, Bool vsync)
{
ScreenPtr screen = scrn->pScreen;
struct nouveau_pixmap *priv = NULL;
NVPtr pNv = NVPTR(scrn);
uint32_t next_fb;
CARD16 stride;
CARD32 size;
void *token;
int ret;
#ifdef HAVE_GLAMOR
if (pNv->AccelMethod == GLAMOR &&
!(priv = nouveau_glamor_pixmap_get(pixmap))) {
int fd = glamor_fd_from_pixmap(screen, pixmap, &stride, &size);
if (fd < 0)
return FALSE;
priv = calloc(1, sizeof(*priv));
if (!priv)
return FALSE;
ret = nouveau_bo_prime_handle_ref(pNv->dev, fd, &priv->bo);
if (ret) {
free(priv);
return FALSE;
}
nouveau_glamor_pixmap_set(pixmap, priv);
} else
#endif
if (!priv)
priv = nouveau_pixmap(pixmap);
ret = drmModeAddFB(pNv->dev->fd, pixmap->drawable.width,
pixmap->drawable.height, pixmap->drawable.depth,
pixmap->drawable.bitsPerPixel, pixmap->devKind,
priv->bo->handle, &next_fb);
if (ret == 0) {
struct nouveau_present_flip *flip =
drmmode_event_queue(scrn, event_id, sizeof(*flip),
nouveau_present_flip, &token);
if (flip) {
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int last = 0, i;
drmmode_swap(scrn, next_fb, &flip->old);
flip->fd = pNv->dev->fd;
flip->msc = target_msc;
for (i = 0; i < config->num_crtc; i++) {
if (config->crtc[i]->enabled)
last = i;
}
for (i = 0; i < config->num_crtc; i++) {
int type = vsync ? 0 : DRM_MODE_PAGE_FLIP_ASYNC;
int crtc = drmmode_crtc(config->crtc[i]);
void *user = NULL;
if (!config->crtc[i]->enabled)
continue;
if (token && ((crtc == sync) || (i == last))) {
type |= DRM_MODE_PAGE_FLIP_EVENT;
user = token;
}
ret = drmModePageFlip(pNv->dev->fd, crtc,
next_fb, type, user);
if (ret == 0 && user) {
token = NULL;
}
}
if (token == NULL) {
return TRUE;
}
drmmode_swap(scrn, flip->old, &next_fb);
drmmode_event_abort(scrn, event_id, false);
}
drmModeRmFB(pNv->dev->fd, next_fb);
}
return FALSE;
}
int main(int argc, char *argv[])
{
uint64_t has_dumb;
int ret, fd, opt, i;
void *map;
struct drm_mode_destroy_dumb dreq;
struct drm_mode_create_dumb creq;
struct drm_mode_map_dumb mreq;
drmModePlaneRes *resources;
drmModePlane *plane = NULL;
uint32_t handle, stride, size;
uint32_t plane_id, crtc_id;
uint32_t width, height;
uint32_t posx, posy;
uint32_t fb;
/* parse command line */
while ((opt = getopt(argc, argv, "x:y:w:v:c:p:h")) != -1) {
switch (opt) {
case 'x':
posx = atoi(optarg);
break;
case 'y':
posy = atoi(optarg);
break;
case 'w':
width = atoi(optarg);
break;
case 'v':
height = atoi(optarg);
break;
case 'p':
plane_id = atoi(optarg);
break;
case 'c':
crtc_id = atoi(optarg);
break;
case 'h':
default:
printf("usage: -h] -c <connector> -e <encoder> -m <mode>\n");
printf("\t-h: this help message\n");
printf("\t-c <crtc> crtc id, default is 0\n");
printf("\t-p <plane> plane id, default is 0\n");
printf("\t-x <posx> plane top left corner xpos, default is 0'\n");
printf("\t-y <posy> plane top left corner ypos, default is 0'\n");
printf("\t-w <width> plane width, default is 0'\n");
printf("\t-v <height> plane height, default is 0'\n");
exit(0);
}
}
/* open drm device */
fd = open(device_name, O_RDWR | O_CLOEXEC);
if (fd < 0) {
perror("cannot open drm device");
exit(-1);
}
drmSetMaster(fd);
/* check dumb buffer support */
if (drmGetCap(fd, DRM_CAP_DUMB_BUFFER, &has_dumb) < 0) {
perror("DRM_CAP_DUMB_BUFFER ioctl");
ret = -EFAULT;
goto err_close;
}
if (!has_dumb) {
fprintf(stderr, "driver does not support dumb buffers\n");
ret = -EFAULT;
goto err_close;
}
/* get plane */
resources = drmModeGetPlaneResources(fd);
if (!resources || resources->count_planes == 0) {
fprintf(stderr, "drmModeGetPlaneResources failed\n");
ret = -ENODEV;
goto err_close;
}
for (i = 0; i < resources->count_planes; i++) {
drmModePlane *p = drmModeGetPlane(fd, resources->planes[i]);
if (!p)
continue;
if (p->plane_id == plane_id) {
plane = p;
break;
}
drmModeFreePlane(plane);
}
if (!plane) {
fprintf(stderr, "couldn't find specified plane\n");
ret = -ENODEV;
goto err_close;
}
/* create dumb buffer object */
memset(&creq, 0, sizeof(creq));
creq.height = height;
creq.width = width;
creq.bpp = 32;
ret = drmIoctl(fd, DRM_IOCTL_MODE_CREATE_DUMB, &creq);
if (ret) {
fprintf(stderr, "failed drmIoctl(DRM_IOCTL_MODE_CREATE_DUMB)\n");
goto err_close;
}
handle = creq.handle;
stride = creq.pitch;
size = creq.size;
/* create framebuffer for dumb buffer object */
ret = drmModeAddFB(fd, width, height, 24, 32, stride, handle, &fb);
if (ret) {
fprintf(stderr, "cannot add drm framebuffer for dumb buffer object\n");
goto err_destroy_dumb;
}
/* map dumb buffer object */
memset(&mreq, 0, sizeof(mreq));
mreq.handle = handle;
ret = drmIoctl(fd, DRM_IOCTL_MODE_MAP_DUMB, &mreq);
if (ret) {
fprintf(stderr, "failed drmIoctl(DRM_IOCTL_MODE_MAP_DUMB)\n");
goto err_destroy_fb;
}
map = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, mreq.offset);
if (map == MAP_FAILED) {
fprintf(stderr, "cannot mmap dumb buffer\n");
goto err_destroy_fb;
}
/* setup new plane */
ret = drmModeSetPlane(fd, plane_id, crtc_id, fb, 0, posx, posy,
width, height, 0, 0, width << 16, height << 16);
if (ret) {
fprintf(stderr, "cannot set plane\n");
goto err_unmap;
}
/* draw on the screen */
draw_test_image((uint32_t *) map, width, height);
getchar();
draw_fancy_image((uint32_t *) map, width, height);
getchar();
drmModeSetPlane(fd, plane_id, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
err_unmap:
if (map)
munmap(map, size);
err_destroy_fb:
drmModeRmFB(fd, fb);
err_destroy_dumb:
memset(&dreq, 0, sizeof(dreq));
dreq.handle = handle;
ret = drmIoctl(fd, DRM_IOCTL_MODE_DESTROY_DUMB, &dreq);
if (ret) {
fprintf(stderr, "cannot destroy dumb buffer\n");
}
err_close:
close(fd);
return ret;
}
/**
* igt_remove_fb:
* @fd: open i915 drm file descriptor
* @fb: pointer to an #igt_fb structure
*
* This function releases all resources allocated in igt_create_fb() for @fb.
* Note that if this framebuffer is still in use on a primary plane the kernel
* will disable the corresponding crtc.
*/
void igt_remove_fb(int fd, struct igt_fb *fb)
{
cairo_surface_destroy(fb->cairo_surface);
do_or_die(drmModeRmFB(fd, fb->fb_id));
gem_close(fd, fb->gem_handle);
}
static void ricochet(int tiled, int sprite_w, int sprite_h,
int out_w, int out_h, int dump_info)
{
int ret;
int gfx_fd;
int keep_moving;
const int num_surfaces = 3;
uint32_t sprite_handles[num_surfaces];
uint32_t sprite_fb_id[num_surfaces];
int *sprite_x = NULL;
int *sprite_y = NULL;
uint32_t sprite_stride;
uint32_t sprite_size;
uint32_t handles[4],
pitches[4],
offsets[4]; /* we only use [0] */
uint32_t prim_width,
prim_height,
prim_handle,
prim_stride,
prim_size,
prim_fb_id;
struct drm_intel_sprite_colorkey set;
struct connector curr_connector;
drmModeRes *gfx_resources;
struct termios orig_term,
curr_term;
int c_index;
int sprite_index;
unsigned int *sprite_plane_id = NULL;
uint32_t plane_flags = 0;
int *delta_x = NULL,
*delta_y = NULL;
struct timeval stTimeVal;
long long currTime,
prevFlipTime,
prevMoveTime,
deltaFlipTime,
deltaMoveTime,
SleepTime;
char key;
int sprite_plane_count = 0;
int i;
// Open up I915 graphics device
gfx_fd = drmOpen("i915", NULL);
if (gfx_fd < 0) {
printf("Failed to load i915 driver: %s\n", strerror(errno));
return;
}
// Obtain pointer to struct containing graphics resources
gfx_resources = drmModeGetResources(gfx_fd);
if (!gfx_resources) {
printf("drmModeGetResources failed: %s\n", strerror(errno));
return;
}
if (dump_info != 0) {
dump_connectors(gfx_fd, gfx_resources);
dump_crtcs(gfx_fd, gfx_resources);
dump_planes(gfx_fd, gfx_resources);
}
// Save previous terminal settings
if (tcgetattr( 0, &orig_term) != 0) {
printf("tcgetattr failure: %s\n",
strerror(errno));
return;
}
// Set up input to return characters immediately
curr_term = orig_term;
curr_term.c_lflag &= ~(ICANON | ECHO | ECHONL);
curr_term.c_cc[VMIN] = 0; // No minimum number of characters
curr_term.c_cc[VTIME] = 0 ; // Return immediately, even if
// nothing has been entered.
if (tcsetattr( 0, TCSANOW, &curr_term) != 0) {
printf("tcgetattr failure: %s\n", strerror(errno));
return;
}
// Cycle through all connectors and display the flying sprite
// where there are displays attached and the hardware will support it.
for (c_index = 0; c_index < gfx_resources->count_connectors; c_index++) {
curr_connector.id = gfx_resources->connectors[c_index];
// Find the native (preferred) display mode
connector_find_preferred_mode(gfx_fd, gfx_resources, &curr_connector);
if (curr_connector.mode_valid == 0) {
printf("No valid preferred mode detected\n");
goto out;
}
// Determine if sprite hardware is available on pipe
// associated with this connector.
sprite_plane_count = connector_find_plane(gfx_fd, &curr_connector,
&sprite_plane_id);
if (!sprite_plane_count) {
printf("Failed to find sprite plane on crtc\n");
goto out;
}
// Width and height of preferred mode
prim_width = curr_connector.mode.hdisplay;
prim_height = curr_connector.mode.vdisplay;
// Allocate and fill memory for primary surface
ret = prepare_primary_surface(
gfx_fd,
prim_width,
prim_height,
&prim_handle,
&prim_stride,
&prim_size,
tiled);
if (ret != 0) {
printf("Failed to add primary fb (%dx%d): %s\n",
prim_width, prim_height, strerror(errno));
goto out;
}
// Add the primary surface framebuffer
ret = drmModeAddFB(gfx_fd, prim_width, prim_height, 24, 32,
prim_stride, prim_handle, &prim_fb_id);
gem_close(gfx_fd, prim_handle);
if (ret != 0) {
printf("Failed to add primary fb (%dx%d): %s\n",
prim_width, prim_height, strerror(errno));
goto out;
}
// Allocate and fill sprite surfaces
ret = prepare_sprite_surfaces(gfx_fd, sprite_w, sprite_h, num_surfaces,
&sprite_handles[0],
&sprite_stride, &sprite_size,
tiled);
if (ret != 0) {
printf("Preparation of sprite surfaces failed %dx%d\n",
sprite_w, sprite_h);
goto out;
}
// Add the sprite framebuffers
for (sprite_index = 0; sprite_index < num_surfaces; sprite_index++) {
handles[0] = sprite_handles[sprite_index];
handles[1] = handles[0];
handles[2] = handles[0];
handles[3] = handles[0];
pitches[0] = sprite_stride;
pitches[1] = sprite_stride;
pitches[2] = sprite_stride;
pitches[3] = sprite_stride;
memset(offsets, 0, sizeof(offsets));
ret = drmModeAddFB2(gfx_fd, sprite_w, sprite_h,
DRM_FORMAT_XRGB8888,
handles, pitches, offsets,
&sprite_fb_id[sprite_index], plane_flags);
gem_close(gfx_fd, sprite_handles[sprite_index]);
if (ret) {
printf("Failed to add sprite fb (%dx%d): %s\n",
sprite_w, sprite_h, strerror(errno));
sprite_index--;
while (sprite_index >= 0) {
drmModeRmFB(gfx_fd, sprite_fb_id[sprite_index]);
sprite_index--;
}
goto out;
}
}
if (dump_info != 0) {
printf("Displayed Mode Connector struct:\n"
" .id = %d\n"
" .mode_valid = %d\n"
" .crtc = %d\n"
" .pipe = %d\n"
" drmModeModeInfo ...\n"
" .name = %s\n"
" .type = %d\n"
" .flags = %08x\n"
" drmModeEncoder ...\n"
" .encoder_id = %d\n"
" .encoder_type = %d (%s)\n"
" .crtc_id = %d\n"
" .possible_crtcs = %d\n"
" .possible_clones = %d\n"
" drmModeConnector ...\n"
" .connector_id = %d\n"
" .encoder_id = %d\n"
" .connector_type = %d (%s)\n"
" .connector_type_id = %d\n\n",
curr_connector.id,
curr_connector.mode_valid,
curr_connector.crtc,
curr_connector.pipe,
curr_connector.mode.name,
curr_connector.mode.type,
curr_connector.mode.flags,
curr_connector.encoder->encoder_id,
curr_connector.encoder->encoder_type,
kmstest_encoder_type_str(curr_connector.encoder->encoder_type),
curr_connector.encoder->crtc_id,
curr_connector.encoder->possible_crtcs,
curr_connector.encoder->possible_clones,
curr_connector.connector->connector_id,
curr_connector.connector->encoder_id,
curr_connector.connector->connector_type,
kmstest_connector_type_str(curr_connector.connector->connector_type),
curr_connector.connector->connector_type_id);
printf("Sprite surface dimensions = %dx%d\n"
"Sprite output dimensions = %dx%d\n"
"Press any key to continue >\n",
sprite_w, sprite_h, out_w, out_h);
// Wait for a key-press
while( read(0, &key, 1) == 0);
// Purge unread characters
tcflush(0, TCIFLUSH);
}
// Set up the primary display mode
ret = drmModeSetCrtc(gfx_fd, curr_connector.crtc, prim_fb_id,
0, 0, &curr_connector.id, 1, &curr_connector.mode);
if (ret != 0) {
printf("Failed to set mode (%dx%d@%dHz): %s\n",
prim_width, prim_height, curr_connector.mode.vrefresh,
strerror(errno));
continue;
}
// Set the sprite colorkey state
for(i = 0; i < sprite_plane_count; i++) {
set.plane_id = sprite_plane_id[i];
set.min_value = 0;
set.max_value = 0;
set.flags = I915_SET_COLORKEY_NONE;
ret = drmCommandWrite(gfx_fd, DRM_I915_SET_SPRITE_COLORKEY, &set,
sizeof(set));
assert(ret == 0);
}
// Set up sprite output dimensions, initial position, etc.
if (out_w > prim_width / 2)
out_w = prim_width / 2;
if (out_h > prim_height / 2)
out_h = prim_height / 2;
delta_x = (int *) malloc(sprite_plane_count * sizeof(int));
delta_y = (int *) malloc(sprite_plane_count * sizeof(int));
sprite_x = (int *) malloc(sprite_plane_count * sizeof(int));
sprite_y = (int *) malloc(sprite_plane_count * sizeof(int));
/* Initializing the coordinates (x,y) of the available sprites on the
* connector, equally spaced along the diagonal of the rectangle
* {(0,0),(prim_width/2, prim_height/2)}.
*/
for(i = 0; i < sprite_plane_count; i++) {
delta_x[i] = 3;
delta_y[i] = 4;
sprite_x[i] = i * (prim_width / (2 * sprite_plane_count));
sprite_y[i] = i * (prim_height / (2 * sprite_plane_count));
}
currTime = 0;
prevFlipTime = 0; // Will force immediate sprite flip
prevMoveTime = 0; // Will force immediate sprite move
deltaFlipTime = 500000; // Flip sprite surface every 1/2 second
deltaMoveTime = 100000; // Move sprite every 100 ms
sprite_index = num_surfaces - 1;
keep_moving = 1;
// Bounce sprite off the walls
while (keep_moving) {
// Obtain system time in usec.
if (gettimeofday( &stTimeVal, NULL ) != 0)
printf("gettimeofday error: %s\n", strerror(errno));
else
currTime = ((long long)stTimeVal.tv_sec * 1000000) + stTimeVal.tv_usec;
// Check if it's time to flip the sprite surface
if (currTime - prevFlipTime > deltaFlipTime) {
sprite_index = (sprite_index + 1) % num_surfaces;
prevFlipTime = currTime;
}
// Move the sprite on the screen and flip
// the surface if the index has changed
// NB: sprite_w and sprite_h must be 16.16 fixed point, herego << 16
for(i = 0; i < sprite_plane_count; i++) {
if (drmModeSetPlane(gfx_fd, sprite_plane_id[i],
curr_connector.crtc,
sprite_fb_id[sprite_index],
plane_flags,
sprite_x[i], sprite_y[i],
out_w, out_h,
0, 0,
sprite_w << 16, sprite_h << 16))
printf("Failed to enable sprite plane: %s\n",
strerror(errno));
}
// Check if it's time to move the sprite surface
if (currTime - prevMoveTime > deltaMoveTime) {
// Compute the next position for sprite
for(i = 0; i < sprite_plane_count; i++) {
sprite_x[i] += delta_x[i];
sprite_y[i] += delta_y[i];
if (sprite_x[i] < 0) {
sprite_x[i] = 0;
delta_x[i] = -delta_x[i];
}
else if (sprite_x[i] > prim_width - out_w) {
sprite_x[i] = prim_width - out_w;
delta_x[i] = -delta_x[i];
}
if (sprite_y[i] < 0) {
sprite_y[i] = 0;
delta_y[i] = -delta_y[i];
}
else if (sprite_y[i] > prim_height - out_h) {
sprite_y[i] = prim_height - out_h;
delta_y[i] = -delta_y[i];
}
}
prevMoveTime = currTime;
}
// Fetch a key from input (non-blocking)
if (read(0, &key, 1) == 1) {
switch (key) {
case 'q': // Kill the program
case 'Q':
goto out;
break;
case 's': // Slow down sprite movement;
deltaMoveTime = (deltaMoveTime * 100) / 90;
if (deltaMoveTime > 800000) {
deltaMoveTime = 800000;
}
break;
case 'S': // Speed up sprite movement;
deltaMoveTime = (deltaMoveTime * 100) / 110;
if (deltaMoveTime < 2000) {
deltaMoveTime = 2000;
}
break;
case 'f': // Slow down sprite flipping;
deltaFlipTime = (deltaFlipTime * 100) / 90;
if (deltaFlipTime > 1000000)
deltaFlipTime = 1000000;
break;
case 'F': // Speed up sprite flipping;
deltaFlipTime = (deltaFlipTime * 100) / 110;
if (deltaFlipTime < 20000)
deltaFlipTime = 20000;
break;
case 'n': // Next connector
case 'N':
keep_moving = 0;
break;
default:
break;
}
// Purge unread characters
tcflush(0, TCIFLUSH);
}
// Wait for min of flip or move deltas
SleepTime = (deltaFlipTime < deltaMoveTime) ?
deltaFlipTime : deltaMoveTime;
usleep(SleepTime);
}
free(sprite_plane_id);
free(sprite_x);
free(sprite_y);
free(delta_x);
free(delta_y);
sprite_plane_id = NULL;
sprite_plane_count = 0;
sprite_x = sprite_y = delta_x = delta_y = NULL;
}
out:
// Purge unread characters
tcflush(0, TCIFLUSH);
// Restore previous terminal settings
if (tcsetattr( 0, TCSANOW, &orig_term) != 0) {
printf("tcgetattr failure: %s\n", strerror(errno));
return;
}
drmModeFreeResources(gfx_resources);
}
bool Drm::setDrmMode(int index, drmModeModeInfoPtr mode)
{
DrmOutput *output = &mOutputs[index];
int oldFbId = 0;
int oldFbHandle = 0;
// reuse current frame buffer if there is no resolution change
int fbId = -1;
drmModeModeInfo currentMode;
memcpy(¤tMode, &output->mode, sizeof(drmModeModeInfo));
if (isSameDrmMode(mode, ¤tMode))
return true;
if (currentMode.hdisplay != mode->hdisplay ||
currentMode.vdisplay != mode->vdisplay) {
oldFbId = output->fbId;
oldFbHandle = output->fbHandle;
// allocate frame buffer
int stride = 0;
#ifdef INTEL_SUPPORT_HDMI_PRIMARY
output->fbHandle = Hwcomposer::getInstance().getBufferManager()->allocFrameBuffer(
DEFAULT_DRM_FB_WIDTH, DEFAULT_DRM_FB_HEIGHT, &stride);
#else
output->fbHandle = Hwcomposer::getInstance().getBufferManager()->allocFrameBuffer(
mode->hdisplay, mode->vdisplay, &stride);
#endif
if (output->fbHandle == 0) {
ELOGTRACE("failed to allocate frame buffer");
return false;
}
int ret = 0;
ret = drmModeAddFB(
mDrmFd,
#ifdef INTEL_SUPPORT_HDMI_PRIMARY
DEFAULT_DRM_FB_WIDTH,
DEFAULT_DRM_FB_HEIGHT,
#else
mode->hdisplay,
mode->vdisplay,
#endif
DrmConfig::getFrameBufferDepth(),
DrmConfig::getFrameBufferBpp(),
stride,
output->fbHandle,
&output->fbId);
if (ret != 0) {
ELOGTRACE("drmModeAddFB failed, error: %d", ret);
return false;
}
fbId = output->fbId;
}
ILOGTRACE("mode set: %dx%d@%dHz", mode->hdisplay, mode->vdisplay, mode->vrefresh);
int ret = drmModeSetCrtc(mDrmFd, output->crtc->crtc_id, fbId, 0, 0,
&output->connector->connector_id, 1, mode);
if (ret == 0) {
//save mode
memcpy(&output->mode, mode, sizeof(drmModeModeInfo));
} else {
ELOGTRACE("drmModeSetCrtc failed. error: %d", ret);
}
if (oldFbId) {
drmModeRmFB(mDrmFd, oldFbId);
}
if (oldFbHandle) {
Hwcomposer::getInstance().getBufferManager()->freeFrameBuffer(oldFbHandle);
}
return ret == 0;
}
int main(int argc, char *argv[])
{
EGLDisplay dpy;
EGLContext ctx;
EGLConfig config;
EGLSurface surface;
EGLint major, minor, n;
const char *ver;
uint32_t handle, stride;
int ret, fd, frames = 0;
struct gbm_device *gbm;
drmModeCrtcPtr saved_crtc;
time_t start, end;
char *data;
char j;
int i;
int once;
once = 0;
signal (SIGINT, quit_handler);
fd = open(device_name, O_RDWR);
if (fd < 0) {
/* Probably permissions error */
fprintf(stderr, "couldn't open %s, skipping\n", device_name);
return -1;
}
gbm = gbm_create_device(fd);
if (gbm == NULL) {
fprintf(stderr, "couldn't create gbm device\n");
ret = -1;
goto close_fd;
}
dpy = eglGetDisplay(gbm);
if (dpy == EGL_NO_DISPLAY) {
fprintf(stderr, "eglGetDisplay() failed\n");
ret = -1;
goto destroy_gbm_device;
}
if (!eglInitialize(dpy, &major, &minor)) {
printf("eglInitialize() failed\n");
ret = -1;
goto egl_terminate;
}
ver = eglQueryString(dpy, EGL_VERSION);
printf("EGL_VERSION = %s\n", ver);
if (!setup_kms(fd, &kms)) {
ret = -1;
goto egl_terminate;
}
eglBindAPI(EGL_OPENGL_API);
if (!eglChooseConfig(dpy, attribs, &config, 1, &n) || n != 1) {
fprintf(stderr, "failed to choose argb config\n");
goto egl_terminate;
}
ctx = eglCreateContext(dpy, config, EGL_NO_CONTEXT, NULL);
if (ctx == NULL) {
fprintf(stderr, "failed to create context\n");
ret = -1;
goto egl_terminate;
}
gs = gbm_surface_create(gbm, kms.mode.hdisplay, kms.mode.vdisplay,
GBM_BO_FORMAT_XRGB8888,
GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
if (gs == NULL) {
fprintf(stderr, "unable to create gbm surface\n");
ret = -1;
goto egl_terminate;
}
surface = eglCreateWindowSurface(dpy, config, gs, NULL);
if (surface == EGL_NO_SURFACE) {
fprintf(stderr, "failed to create surface\n");
ret = -1;
goto destroy_gbm_surface;
}
if (!eglMakeCurrent(dpy, surface, surface, ctx)) {
fprintf(stderr, "failed to make context current\n");
ret = -1;
goto destroy_surface;
}
saved_crtc = drmModeGetCrtc(fd, kms.crtc_id);
if (saved_crtc == NULL)
{
fprintf(stderr, "no valid graphic configuration active (VT ?)\n");
}
time(&start);
do {
drmEventContext evctx;
fd_set rfds;
render_stuff(kms.mode.hdisplay, kms.mode.vdisplay);
eglSwapBuffers(dpy, surface);
if (!gbm_surface_has_free_buffers(gs))
fprintf(stderr, "out of free buffers\n");
next_bo = gbm_surface_lock_front_buffer(gs);
if (!next_bo)
fprintf(stderr, "failed to lock front buffer: %m\n");
handle = gbm_bo_get_handle(next_bo).u32;
stride = gbm_bo_get_stride(next_bo);
ret = drmModeAddFB(fd,
kms.mode.hdisplay, kms.mode.vdisplay,
24, 32, stride, handle, &next_fb_id);
if (ret) {
fprintf(stderr, "failed to create fb\n");
goto out;
}
/* make sure to setup crtc once (fix for broken drivers) */
if(once == 0){
once = 1;
drmModeSetCrtc(fd, kms.crtc_id, next_fb_id,
0, 0,
&kms.connector->connector_id, 1, &kms.mode);
}
ret = drmModePageFlip(fd, kms.crtc_id,
next_fb_id,
DRM_MODE_PAGE_FLIP_EVENT, 0);
if (ret) {
fprintf(stderr, "failed to page flip: %m\n");
goto out;
}
FD_ZERO(&rfds);
FD_SET(fd, &rfds);
while (select(fd + 1, &rfds, NULL, NULL, NULL) == -1)
NULL;
memset(&evctx, 0, sizeof evctx);
evctx.version = DRM_EVENT_CONTEXT_VERSION;
evctx.page_flip_handler = page_flip_handler;
drmHandleEvent(fd, &evctx);
frames++;
} while (!quit);
time(&end);
printf("Frames per second: %.2lf\n", frames / difftime(end, start));
out:
if(saved_crtc){
drmModeSetCrtc(fd, saved_crtc->crtc_id, saved_crtc->buffer_id,
saved_crtc->x, saved_crtc->y,
&kms.connector->connector_id, 1, &saved_crtc->mode);
}
drmModeFreeCrtc(saved_crtc);
if (current_fb_id)
drmModeRmFB(fd, current_fb_id);
if (next_fb_id)
drmModeRmFB(fd, next_fb_id);
eglMakeCurrent(dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
destroy_context:
eglDestroyContext(dpy, ctx);
destroy_surface:
eglDestroySurface(dpy, surface);
destroy_gbm_surface:
gbm_surface_destroy(gs);
egl_terminate:
eglTerminate(dpy);
destroy_gbm_device:
gbm_device_destroy(gbm);
close_fd:
close(fd);
return ret;
}
static Bool
drmmode_xf86crtc_resize (ScrnInfoPtr scrn, int width, int height)
{
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
drmmode_crtc_private_ptr
drmmode_crtc = xf86_config->crtc[0]->driver_private;
drmmode_ptr drmmode = drmmode_crtc->drmmode;
intel_screen_private *intel = intel_get_screen_private(scrn);
drm_intel_bo *old_front = NULL;
Bool ret;
uint32_t old_fb_id;
int i, old_width, old_height, old_pitch;
unsigned long pitch;
uint32_t tiling;
if (scrn->virtualX == width && scrn->virtualY == height)
return TRUE;
old_width = scrn->virtualX;
old_height = scrn->virtualY;
old_pitch = scrn->displayWidth;
old_fb_id = drmmode->fb_id;
old_front = intel->front_buffer;
intel->front_buffer = intel_allocate_framebuffer(scrn,
width, height,
intel->cpp,
&pitch,
&tiling);
if (!intel->front_buffer)
goto fail;
ret = drmModeAddFB(drmmode->fd, width, height, scrn->depth,
scrn->bitsPerPixel, pitch,
intel->front_buffer->handle,
&drmmode->fb_id);
if (ret)
goto fail;
intel->front_pitch = pitch;
intel->front_tiling = tiling;
scrn->virtualX = width;
scrn->virtualY = height;
for (i = 0; i < xf86_config->num_crtc; i++) {
xf86CrtcPtr crtc = xf86_config->crtc[i];
if (!crtc->enabled)
continue;
drmmode_set_mode_major(crtc, &crtc->mode,
crtc->rotation, crtc->x, crtc->y);
}
intel_uxa_create_screen_resources(scrn->pScreen);
if (old_fb_id)
drmModeRmFB(drmmode->fd, old_fb_id);
if (old_front)
drm_intel_bo_unreference(old_front);
return TRUE;
fail:
if (intel->front_buffer)
drm_intel_bo_unreference(intel->front_buffer);
intel->front_buffer = old_front;
scrn->virtualX = old_width;
scrn->virtualY = old_height;
scrn->displayWidth = old_pitch;
drmmode->fb_id = old_fb_id;
return FALSE;
}
static int init_rb(struct uterm_display *disp, struct dumb_rb *rb)
{
int ret;
struct uterm_video *video = disp->video;
struct drm_mode_create_dumb req;
struct drm_mode_destroy_dumb dreq;
struct drm_mode_map_dumb mreq;
memset(&req, 0, sizeof(req));
req.width = disp->current_mode->dumb.info.hdisplay;
req.height = disp->current_mode->dumb.info.vdisplay;
req.bpp = 32;
req.flags = 0;
ret = drmIoctl(video->dumb.fd, DRM_IOCTL_MODE_CREATE_DUMB, &req);
if (ret < 0) {
log_err("cannot create dumb drm buffer");
return -EFAULT;
}
rb->handle = req.handle;
rb->stride = req.pitch;
rb->size = req.size;
ret = drmModeAddFB(video->dumb.fd,
disp->current_mode->dumb.info.hdisplay,
disp->current_mode->dumb.info.vdisplay,
24, 32, rb->stride, rb->handle, &rb->fb);
if (ret) {
log_err("cannot add drm-fb");
ret = -EFAULT;
goto err_buf;
}
memset(&mreq, 0, sizeof(mreq));
mreq.handle = rb->handle;
ret = drmIoctl(video->dumb.fd, DRM_IOCTL_MODE_MAP_DUMB, &mreq);
if (ret) {
log_err("cannot map dumb buffer");
ret = -EFAULT;
goto err_fb;
}
rb->map = mmap(0, rb->size, PROT_READ | PROT_WRITE, MAP_SHARED,
video->dumb.fd, mreq.offset);
if (rb->map == MAP_FAILED) {
log_err("cannot mmap dumb buffer");
ret = -EFAULT;
goto err_fb;
}
return 0;
err_fb:
drmModeRmFB(video->dumb.fd, rb->fb);
err_buf:
memset(&dreq, 0, sizeof(dreq));
dreq.handle = rb->handle;
ret = drmIoctl(video->dumb.fd, DRM_IOCTL_MODE_DESTROY_DUMB, &dreq);
if (ret)
log_warning("cannot destroy dumb buffer");
return ret;
}
int main(int argc, char **argv)
{
int fd = drmOpen("radeon", NULL);
assert(fd >= 0);
// expose all planes including primary and cursor planes
assert(!drmSetClientCap(fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1));
drmModeResPtr res = drmModeGetResources(fd);
assert(res);
int i, j;
drmModeConnectorPtr connector = NULL;
for (i = 0; i < res->count_connectors; i++) {
connector = drmModeGetConnector(fd, res->connectors[i]);
assert(connector);
if (connector->connection == DRM_MODE_CONNECTED)
break;
drmFree(connector);
}
drmModeEncoderPtr encoder = drmModeGetEncoder(fd, connector->encoder_id);
assert(encoder);
drmModeCrtcPtr crtc = drmModeGetCrtc(fd, encoder->crtc_id);
assert(crtc);
drmModeFBPtr fb = drmModeGetFB(fd, crtc->buffer_id);
assert(fb);
drmModePlaneResPtr plane_res = drmModeGetPlaneResources(fd);
assert(plane_res);
drmModePlanePtr plane = NULL;
for (i = 0; i < plane_res->count_planes; i++) {
plane = drmModeGetPlane(fd, plane_res->planes[i]);
assert(plane);
if (plane->fb_id == fb->fb_id)
break;
drmFree(plane);
}
uint64_t has_dumb;
assert(!drmGetCap(fd, DRM_CAP_DUMB_BUFFER, &has_dumb));
assert(has_dumb);
struct drm_mode_create_dumb creq;
memset(&creq, 0, sizeof(creq));
creq.width = fb->width;
creq.height = fb->height;
creq.bpp = fb->bpp;
assert(!drmIoctl(fd, DRM_IOCTL_MODE_CREATE_DUMB, &creq));
printf("width=%d height=%d bpp=%d pitch=%d size=%d\n",
creq.width, creq.height, creq.bpp, creq.pitch, creq.size);
uint32_t my_fb;
assert(!drmModeAddFB(fd, creq.width, creq.height, 24, creq.bpp, creq.pitch, creq.handle, &my_fb));
struct drm_mode_map_dumb mreq;
memset(&mreq, 0, sizeof(mreq));
mreq.handle = creq.handle;
assert(!drmIoctl(fd, DRM_IOCTL_MODE_MAP_DUMB, &mreq));
uint32_t *map = mmap(0, creq.size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, mreq.offset);
assert(map != MAP_FAILED);
memset(map, 0, creq.size);
for (i = 100; i < 500; i++)
for (j = 200; j < 460; j++)
map[i * (creq.pitch >> 2) + j] = 0x12345678;
assert(!drmModeSetCrtc(fd, crtc->crtc_id, my_fb, 0, 0, &connector->connector_id, 1, &crtc->mode));
sleep(10);
assert(!drmModeSetCrtc(fd, crtc->crtc_id, fb->fb_id, 0, 0, &connector->connector_id, 1, &crtc->mode));
assert(!drmModeRmFB(fd, my_fb));
struct drm_mode_destroy_dumb dreq;
memset(&dreq, 0, sizeof(dreq));
dreq.handle = creq.handle;
assert(!drmIoctl(fd, DRM_IOCTL_MODE_DESTROY_DUMB, &dreq));
drmFree(plane);
drmFree(plane_res);
drmFree(fb);
drmFree(crtc);
drmFree(encoder);
drmFree(connector);
drmFree(res);
drmClose(fd);
return 0;
}
static Bool
dri2_page_flip(DrawablePtr draw, PixmapPtr back, void *priv,
xf86CrtcPtr ref_crtc)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(draw->pScreen);
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
NVPtr pNv = NVPTR(scrn);
uint32_t next_fb;
int emitted = 0;
int ret, i;
dri2_flipdata_ptr flipdata;
dri2_flipevtcarrier_ptr flipcarrier;
ret = drmModeAddFB(pNv->dev->fd, scrn->virtualX, scrn->virtualY,
scrn->depth, scrn->bitsPerPixel,
scrn->displayWidth * scrn->bitsPerPixel / 8,
nouveau_pixmap(back)->bo->handle, &next_fb);
if (ret) {
xf86DrvMsg(scrn->scrnIndex, X_WARNING,
"add fb failed: %s\n", strerror(errno));
return FALSE;
}
flipdata = calloc(1, sizeof(dri2_flipdata_rec));
if (!flipdata) {
xf86DrvMsg(scrn->scrnIndex, X_WARNING,
"flip queue: data alloc failed.\n");
goto error_undo;
}
flipdata->event_data = priv;
flipdata->fd = pNv->dev->fd;
for (i = 0; i < config->num_crtc; i++) {
int head = drmmode_crtc(config->crtc[i]);
void *token;
if (!drmmode_crtc_on(config->crtc[i]))
continue;
flipdata->flip_count++;
flipcarrier = drmmode_event_queue(scrn, ++dri2_sequence,
sizeof(*flipcarrier),
nouveau_dri2_flip_handler,
&token);
if (!flipcarrier) {
xf86DrvMsg(scrn->scrnIndex, X_WARNING,
"flip queue: carrier alloc failed.\n");
if (emitted == 0)
free(flipdata);
goto error_undo;
}
/* Only the reference crtc will finally deliver its page flip
* completion event. All other crtc's events will be discarded.
*/
flipcarrier->dispatch_me = (config->crtc[i] == ref_crtc);
flipcarrier->flipdata = flipdata;
ret = drmModePageFlip(pNv->dev->fd, head, next_fb,
DRM_MODE_PAGE_FLIP_EVENT, token);
if (ret) {
xf86DrvMsg(scrn->scrnIndex, X_WARNING,
"flip queue failed: %s\n", strerror(errno));
drmmode_event_abort(scrn, dri2_sequence--, false);
if (emitted == 0)
free(flipdata);
goto error_undo;
}
emitted++;
}
/* Will release old fb after all crtc's completed flip. */
drmmode_swap(scrn, next_fb, &flipdata->old_fb_id);
return TRUE;
error_undo:
drmModeRmFB(pNv->dev->fd, next_fb);
return FALSE;
}
static void modeset_destroy_fb(int fd, struct modeset_buf *buf)
{
if (buf->map) {
munmap(buf->map, buf->size);
}
if (buf->fb) {
drmModeRmFB(fd, buf->fb);
}
if (buf->handle) {
struct drm_mode_destroy_dumb dreq = {
.handle = buf->handle,
};
drmIoctl(fd, DRM_IOCTL_MODE_DESTROY_DUMB, &dreq);
}
}
static int modeset_create_fb(struct vo *vo, int fd, struct modeset_buf *buf)
{
int ret = 0;
buf->handle = 0;
// create dumb buffer
struct drm_mode_create_dumb creq = {
.width = buf->width,
.height = buf->height,
.bpp = 32,
};
ret = drmIoctl(fd, DRM_IOCTL_MODE_CREATE_DUMB, &creq);
if (ret < 0) {
MP_ERR(vo, "Cannot create dumb buffer: %s\n", mp_strerror(errno));
ret = -errno;
goto end;
}
buf->stride = creq.pitch;
buf->size = creq.size;
buf->handle = creq.handle;
// create framebuffer object for the dumb-buffer
ret = drmModeAddFB(fd, buf->width, buf->height, 24, 32, buf->stride,
buf->handle, &buf->fb);
if (ret) {
MP_ERR(vo, "Cannot create framebuffer: %s\n", mp_strerror(errno));
ret = -errno;
goto end;
}
// prepare buffer for memory mapping
struct drm_mode_map_dumb mreq = {
.handle = buf->handle,
};
ret = drmIoctl(fd, DRM_IOCTL_MODE_MAP_DUMB, &mreq);
if (ret) {
MP_ERR(vo, "Cannot map dumb buffer: %s\n", mp_strerror(errno));
ret = -errno;
goto end;
}
// perform actual memory mapping
buf->map = mmap(0, buf->size, PROT_READ | PROT_WRITE, MAP_SHARED,
fd, mreq.offset);
if (buf->map == MAP_FAILED) {
MP_ERR(vo, "Cannot map dumb buffer: %s\n", mp_strerror(errno));
ret = -errno;
goto end;
}
memset(buf->map, 0, buf->size);
end:
if (ret == 0) {
return 0;
}
modeset_destroy_fb(fd, buf);
return ret;
}
static int modeset_find_crtc(struct vo *vo, int fd, drmModeRes *res,
drmModeConnector *conn, struct modeset_dev *dev)
{
for (unsigned int i = 0; i < conn->count_encoders; ++i) {
drmModeEncoder *enc = drmModeGetEncoder(fd, conn->encoders[i]);
if (!enc) {
MP_WARN(vo, "Cannot retrieve encoder %u:%u: %s\n",
i, conn->encoders[i], mp_strerror(errno));
continue;
}
// iterate all global CRTCs
for (unsigned int j = 0; j < res->count_crtcs; ++j) {
// check whether this CRTC works with the encoder
if (!(enc->possible_crtcs & (1 << j)))
continue;
dev->enc = enc;
dev->crtc = enc->crtc_id;
return 0;
}
drmModeFreeEncoder(enc);
}
MP_ERR(vo, "Connector %u has no suitable CRTC\n", conn->connector_id);
return -ENOENT;
}
static bool is_connector_valid(struct vo *vo, int conn_id,
drmModeConnector *conn, bool silent)
{
if (!conn) {
if (!silent) {
MP_ERR(vo, "Cannot get connector %d: %s\n", conn_id,
mp_strerror(errno));
}
return false;
}
if (conn->connection != DRM_MODE_CONNECTED) {
if (!silent) {
MP_ERR(vo, "Connector %d is disconnected\n", conn_id);
}
return false;
}
if (conn->count_modes == 0) {
if (!silent) {
MP_ERR(vo, "Connector %d has no valid modes\n", conn_id);
}
return false;
}
return true;
}
static int modeset_prepare_dev(struct vo *vo, int fd, int conn_id,
struct modeset_dev **out)
{
struct modeset_dev *dev = NULL;
drmModeConnector *conn = NULL;
int ret = 0;
*out = NULL;
drmModeRes *res = drmModeGetResources(fd);
if (!res) {
MP_ERR(vo, "Cannot retrieve DRM resources: %s\n", mp_strerror(errno));
ret = -errno;
goto end;
}
if (conn_id == -1) {
// get the first connected connector
for (int i = 0; i < res->count_connectors; i++) {
conn = drmModeGetConnector(fd, res->connectors[i]);
if (is_connector_valid(vo, i, conn, true)) {
conn_id = i;
break;
}
if (conn) {
drmModeFreeConnector(conn);
conn = NULL;
}
}
if (conn_id == -1) {
MP_ERR(vo, "No connected connectors found\n");
ret = -ENODEV;
goto end;
}
}
if (conn_id < 0 || conn_id >= res->count_connectors) {
MP_ERR(vo, "Bad connector ID. Max valid connector ID = %u\n",
res->count_connectors);
ret = -ENODEV;
goto end;
}
conn = drmModeGetConnector(fd, res->connectors[conn_id]);
if (!is_connector_valid(vo, conn_id, conn, false)) {
ret = -ENODEV;
goto end;
}
dev = talloc_zero(vo->priv, struct modeset_dev);
dev->conn = conn->connector_id;
dev->front_buf = 0;
dev->mode = conn->modes[0];
dev->bufs[0].width = conn->modes[0].hdisplay;
dev->bufs[0].height = conn->modes[0].vdisplay;
dev->bufs[1].width = conn->modes[0].hdisplay;
dev->bufs[1].height = conn->modes[0].vdisplay;
MP_INFO(vo, "Connector using mode %ux%u\n",
dev->bufs[0].width, dev->bufs[0].height);
ret = modeset_find_crtc(vo, fd, res, conn, dev);
if (ret) {
MP_ERR(vo, "Connector %d has no valid CRTC\n", conn_id);
goto end;
}
for (unsigned int i = 0; i < BUF_COUNT; i++) {
ret = modeset_create_fb(vo, fd, &dev->bufs[i]);
if (ret) {
MP_ERR(vo, "Cannot create framebuffer for connector %d\n",
conn_id);
for (unsigned int j = 0; j < i; j++) {
modeset_destroy_fb(fd, &dev->bufs[j]);
}
goto end;
}
}
end:
if (conn) {
drmModeFreeConnector(conn);
conn = NULL;
}
if (res) {
drmModeFreeResources(res);
res = NULL;
}
if (ret == 0) {
*out = dev;
} else {
talloc_free(dev);
}
return ret;
}
static void modeset_page_flipped(int fd, unsigned int frame, unsigned int sec,
unsigned int usec, void *data)
{
struct priv *p = data;
p->pflip_happening = false;
}
static int setup_vo_crtc(struct vo *vo)
{
struct priv *p = vo->priv;
if (p->active)
return 0;
p->old_crtc = drmModeGetCrtc(p->fd, p->dev->crtc);
int ret = drmModeSetCrtc(p->fd, p->dev->crtc,
p->dev->bufs[p->dev->front_buf + BUF_COUNT - 1].fb,
0, 0, &p->dev->conn, 1, &p->dev->mode);
p->active = true;
return ret;
}
static void release_vo_crtc(struct vo *vo)
{
struct priv *p = vo->priv;
if (!p->active)
return;
p->active = false;
// wait for current page flip
while (p->pflip_happening) {
int ret = drmHandleEvent(p->fd, &p->ev);
if (ret) {
MP_ERR(vo, "drmHandleEvent failed: %i\n", ret);
break;
}
}
if (p->old_crtc) {
drmModeSetCrtc(p->fd,
p->old_crtc->crtc_id,
p->old_crtc->buffer_id,
p->old_crtc->x,
p->old_crtc->y,
&p->dev->conn,
1,
&p->dev->mode);
drmModeFreeCrtc(p->old_crtc);
p->old_crtc = NULL;
}
}
static void release_vt(void *data)
{
struct vo *vo = data;
release_vo_crtc(vo);
if (USE_MASTER) {
//this function enables support for switching to x, weston etc.
//however, for whatever reason, it can be called only by root users.
//until things change, this is commented.
struct priv *p = vo->priv;
if (drmDropMaster(p->fd)) {
MP_WARN(vo, "Failed to drop DRM master: %s\n", mp_strerror(errno));
}
}
}
static void acquire_vt(void *data)
{
struct vo *vo = data;
if (USE_MASTER) {
struct priv *p = vo->priv;
if (drmSetMaster(p->fd)) {
MP_WARN(vo, "Failed to acquire DRM master: %s\n", mp_strerror(errno));
}
}
setup_vo_crtc(vo);
}
static int wait_events(struct vo *vo, int64_t until_time_us)
{
struct priv *p = vo->priv;
int64_t wait_us = until_time_us - mp_time_us();
int timeout_ms = MPCLAMP((wait_us + 500) / 1000, 0, 10000);
vt_switcher_poll(&p->vt_switcher, timeout_ms);
return 0;
}
static void wakeup(struct vo *vo)
{
struct priv *p = vo->priv;
vt_switcher_interrupt_poll(&p->vt_switcher);
}
static int reconfig(struct vo *vo, struct mp_image_params *params, int flags)
{
struct priv *p = vo->priv;
vo->dwidth = p->device_w;
vo->dheight = p->device_h;
vo_get_src_dst_rects(vo, &p->src, &p->dst, &p->osd);
int32_t w = p->dst.x1 - p->dst.x0;
int32_t h = p->dst.y1 - p->dst.y0;
// p->osd contains the parameters assuming OSD rendering in window
// coordinates, but OSD can only be rendered in the intersection
// between window and video rectangle (i.e. not into panscan borders).
p->osd.w = w;
p->osd.h = h;
p->osd.mt = MPMIN(0, p->osd.mt);
p->osd.mb = MPMIN(0, p->osd.mb);
p->osd.mr = MPMIN(0, p->osd.mr);
p->osd.ml = MPMIN(0, p->osd.ml);
p->x = (p->device_w - w) >> 1;
p->y = (p->device_h - h) >> 1;
mp_sws_set_from_cmdline(p->sws, vo->opts->sws_opts);
p->sws->src = *params;
p->sws->dst = (struct mp_image_params) {
.imgfmt = IMGFMT_BGR0,
.w = w,
.h = h,
.d_w = w,
.d_h = h,
};
talloc_free(p->cur_frame);
p->cur_frame = mp_image_alloc(IMGFMT_BGR0, p->device_w, p->device_h);
mp_image_params_guess_csp(&p->sws->dst);
mp_image_set_params(p->cur_frame, &p->sws->dst);
struct modeset_buf *buf = p->dev->bufs;
memset(buf[0].map, 0, buf[0].size);
memset(buf[1].map, 0, buf[1].size);
if (mp_sws_reinit(p->sws) < 0)
return -1;
vo->want_redraw = true;
return 0;
}
static void draw_image(struct vo *vo, mp_image_t *mpi)
{
struct priv *p = vo->priv;
if (p->active) {
struct mp_image src = *mpi;
struct mp_rect src_rc = p->src;
src_rc.x0 = MP_ALIGN_DOWN(src_rc.x0, mpi->fmt.align_x);
src_rc.y0 = MP_ALIGN_DOWN(src_rc.y0, mpi->fmt.align_y);
mp_image_crop_rc(&src, src_rc);
mp_sws_scale(p->sws, p->cur_frame, &src);
osd_draw_on_image(vo->osd, p->osd, src.pts, 0, p->cur_frame);
struct modeset_buf *front_buf = &p->dev->bufs[p->dev->front_buf];
int32_t shift = (p->device_w * p->y + p->x) * 4;
memcpy_pic(front_buf->map + shift,
p->cur_frame->planes[0],
(p->dst.x1 - p->dst.x0) * 4,
p->dst.y1 - p->dst.y0,
p->device_w * 4,
p->cur_frame->stride[0]);
}
if (mpi != p->last_input) {
talloc_free(p->last_input);
p->last_input = mpi;
}
}
static void flip_page(struct vo *vo)
{
struct priv *p = vo->priv;
if (!p->active || p->pflip_happening)
return;
int ret = drmModePageFlip(p->fd, p->dev->crtc,
p->dev->bufs[p->dev->front_buf].fb,
DRM_MODE_PAGE_FLIP_EVENT, p);
if (ret) {
MP_WARN(vo, "Cannot flip page for connector\n");
} else {
p->dev->front_buf++;
p->dev->front_buf %= BUF_COUNT;
p->pflip_happening = true;
}
// poll page flip finish event
const int timeout_ms = 3000;
struct pollfd fds[1] = {
{ .events = POLLIN, .fd = p->fd },
};
poll(fds, 1, timeout_ms);
if (fds[0].revents & POLLIN) {
ret = drmHandleEvent(p->fd, &p->ev);
if (ret != 0) {
MP_ERR(vo, "drmHandleEvent failed: %i\n", ret);
return;
}
}
}
static void uninit(struct vo *vo)
{
struct priv *p = vo->priv;
if (p->dev) {
release_vo_crtc(vo);
modeset_destroy_fb(p->fd, &p->dev->bufs[1]);
modeset_destroy_fb(p->fd, &p->dev->bufs[0]);
drmModeFreeEncoder(p->dev->enc);
}
vt_switcher_destroy(&p->vt_switcher);
talloc_free(p->last_input);
talloc_free(p->cur_frame);
talloc_free(p->dev);
close(p->fd);
}
static int preinit(struct vo *vo)
{
struct priv *p = vo->priv;
p->sws = mp_sws_alloc(vo);
p->fd = -1;
p->ev.version = DRM_EVENT_CONTEXT_VERSION;
p->ev.page_flip_handler = modeset_page_flipped;
if (vt_switcher_init(&p->vt_switcher, vo->log))
goto err;
vt_switcher_acquire(&p->vt_switcher, acquire_vt, vo);
vt_switcher_release(&p->vt_switcher, release_vt, vo);
if (modeset_open(vo, &p->fd, p->device_path))
goto err;
if (modeset_prepare_dev(vo, p->fd, p->connector_id, &p->dev))
goto err;
assert(p->dev);
p->device_w = p->dev->bufs[0].width;
p->device_h = p->dev->bufs[0].height;
if (setup_vo_crtc(vo)) {
MP_ERR(vo, "Cannot set CRTC for connector %u: %s\n", p->connector_id,
mp_strerror(errno));
goto err;
}
return 0;
err:
uninit(vo);
return -1;
}
static int query_format(struct vo *vo, int format)
{
return sws_isSupportedInput(imgfmt2pixfmt(format));
}
static int control(struct vo *vo, uint32_t request, void *data)
{
struct priv *p = vo->priv;
switch (request) {
case VOCTRL_SCREENSHOT_WIN:
*(struct mp_image**)data = mp_image_new_copy(p->cur_frame);
return VO_TRUE;
case VOCTRL_REDRAW_FRAME:
draw_image(vo, p->last_input);
return VO_TRUE;
case VOCTRL_GET_PANSCAN:
return VO_TRUE;
case VOCTRL_SET_PANSCAN:
if (vo->config_ok)
reconfig(vo, vo->params, 0);
return VO_TRUE;
}
return VO_NOTIMPL;
}
#define OPT_BASE_STRUCT struct priv
const struct vo_driver video_out_drm = {
.name = "drm",
.description = "Direct Rendering Manager",
.preinit = preinit,
.query_format = query_format,
.reconfig = reconfig,
.control = control,
.draw_image = draw_image,
.flip_page = flip_page,
.uninit = uninit,
.wait_events = wait_events,
.wakeup = wakeup,
.priv_size = sizeof(struct priv),
.options = (const struct m_option[]) {
OPT_STRING("devpath", device_path, 0),
OPT_INT("connector", connector_id, 0),
{0},
},
.priv_defaults = &(const struct priv) {
static void
_cogl_winsys_onscreen_swap_buffers (CoglOnscreen *onscreen)
{
CoglContext *context = COGL_FRAMEBUFFER (onscreen)->context;
CoglDisplayEGL *egl_display = context->display->winsys;
CoglDisplayKMS *kms_display = egl_display->platform;
CoglRenderer *renderer = context->display->renderer;
CoglRendererEGL *egl_renderer = renderer->winsys;
CoglRendererKMS *kms_renderer = egl_renderer->platform;
CoglOnscreenEGL *egl_onscreen = onscreen->winsys;
CoglOnscreenKMS *kms_onscreen = egl_onscreen->platform;
uint32_t handle, stride;
CoglFlipKMS *flip;
GList *l;
/* If we already have a pending swap then block until it completes */
while (kms_onscreen->next_fb_id != 0)
handle_drm_event (kms_renderer);
/* First chain-up. This will call eglSwapBuffers */
parent_vtable->onscreen_swap_buffers (onscreen);
/* Now we need to set the CRTC to whatever is the front buffer */
kms_onscreen->next_bo = gbm_surface_lock_front_buffer (kms_onscreen->surface);
#if (COGL_VERSION_ENCODE (COGL_GBM_MAJOR, COGL_GBM_MINOR, COGL_GBM_MICRO) >= \
COGL_VERSION_ENCODE (8, 1, 0))
stride = gbm_bo_get_stride (kms_onscreen->next_bo);
#else
stride = gbm_bo_get_pitch (kms_onscreen->next_bo);
#endif
handle = gbm_bo_get_handle (kms_onscreen->next_bo).u32;
if (drmModeAddFB (kms_renderer->fd,
kms_display->width,
kms_display->height,
24, /* depth */
32, /* bpp */
stride,
handle,
&kms_onscreen->next_fb_id))
{
g_warning ("Failed to create new back buffer handle: %m");
gbm_surface_release_buffer (kms_onscreen->surface,
kms_onscreen->next_bo);
kms_onscreen->next_bo = NULL;
kms_onscreen->next_fb_id = 0;
return;
}
/* If this is the first framebuffer to be presented then we now setup the
* crtc modes... */
if (kms_display->pending_set_crtc)
{
setup_crtc_modes (context->display, kms_onscreen->next_fb_id);
kms_display->pending_set_crtc = FALSE;
}
flip = g_slice_new0 (CoglFlipKMS);
flip->onscreen = onscreen;
for (l = kms_display->outputs; l; l = l->next)
{
CoglOutputKMS *output = l->data;
if (drmModePageFlip (kms_renderer->fd,
output->encoder->crtc_id,
kms_onscreen->next_fb_id,
DRM_MODE_PAGE_FLIP_EVENT,
flip))
{
g_warning ("Failed to flip: %m");
continue;
}
flip->pending++;
}
if (flip->pending == 0)
{
drmModeRmFB (kms_renderer->fd, kms_onscreen->next_fb_id);
gbm_surface_release_buffer (kms_onscreen->surface,
kms_onscreen->next_bo);
kms_onscreen->next_bo = NULL;
kms_onscreen->next_fb_id = 0;
g_slice_free (CoglFlipKMS, flip);
flip = NULL;
}
else
{
/* Ensure the onscreen remains valid while it has any pending flips... */
cogl_object_ref (flip->onscreen);
}
}
static drm_overlay_fb * drm_create_fb_internal(struct drm_tegra *drm,
int drm_fd,
uint32_t drm_format,
uint32_t width, uint32_t height,
uint32_t *bo_handles,
uint32_t *pitches,
uint32_t *offsets,
Bool dont_map)
{
struct drm_tegra_bo *bo = NULL;
struct drm_tegra_bo *bo_cb = NULL;
struct drm_tegra_bo *bo_cr = NULL;
drm_overlay_fb *fb = NULL;
uint32_t fb_id = HANDLE_INVALID;
Bool from_handle;
int err;
if (width == 0 || height == 0)
return NULL;
if (!pitches) {
pitches = alloca(sizeof(uint32_t) * 4);
pitches[0] = fb_pitch_aligned(drm_format, width);
pitches[1] = fb_pitch_c_aligned(drm_format, width);
pitches[2] = fb_pitch_c_aligned(drm_format, width);
pitches[3] = 0;
}
if (!offsets) {
offsets = alloca(sizeof(uint32_t) * 4);
offsets[0] = 0;
offsets[1] = 0;
offsets[2] = 0;
offsets[3] = 0;
}
from_handle = !!(bo_handles);
if (from_handle) {
err = drm_tegra_bo_wrap(&bo, drm, bo_handles[0], 0,
pitches[0] * height);
if (err)
goto error_cleanup;
drm_tegra_bo_forbid_caching(bo);
if (format_planar(drm_format)) {
err = drm_tegra_bo_wrap(&bo_cb, drm, bo_handles[1], 0,
pitches[1] * height / 2);
if (err)
goto error_cleanup;
drm_tegra_bo_forbid_caching(bo_cb);
err = drm_tegra_bo_wrap(&bo_cr, drm, bo_handles[2], 0,
pitches[2] * height / 2);
if (err)
goto error_cleanup;
drm_tegra_bo_forbid_caching(bo_cr);
}
goto create_framebuffer;
}
bo_handles = alloca(sizeof(uint32_t) * 4);
bo_handles[1] = HANDLE_INVALID;
bo_handles[2] = HANDLE_INVALID;
bo_handles[3] = HANDLE_INVALID;
/* Allocate PLANE[0] */
err = drm_tegra_bo_new(&bo, drm, 0, offsets[0] +
fb_size_aligned(drm_format, width, height));
if (err)
goto error_cleanup;
drm_tegra_bo_get_handle(bo, &bo_handles[0]);
if (!format_planar(drm_format))
goto create_framebuffer;
/* Allocate PLANE[1] */
err = drm_tegra_bo_new(&bo_cb, drm, 0, offsets[1] +
fb_size_c_aligned(drm_format, width, height));
if (err)
goto error_cleanup;
drm_tegra_bo_get_handle(bo_cb, &bo_handles[1]);
/* Allocate PLANE[2] */
err = drm_tegra_bo_new(&bo_cr, drm, 0, offsets[2] +
fb_size_c_aligned(drm_format, width, height));
if (err)
goto error_cleanup;
drm_tegra_bo_get_handle(bo_cr, &bo_handles[2]);
create_framebuffer:
err = drmModeAddFB2(drm_fd, width, height, drm_format,
bo_handles, pitches, offsets, &fb_id, 0);
if (err) {
ErrorMsg("Failed to create DRM framebuffer: %s\n", strerror(-err));
goto error_cleanup;
}
fb = calloc(1, sizeof(*fb));
if (!fb)
goto error_cleanup;
fb->fb_id = fb_id;
fb->format = drm_format;
fb->width = width;
fb->height = height;
fb->width_c = fb_width_c(drm_format, width);
fb->height_c = fb_height_c(drm_format, height);
fb->bpp = fb_bpp(drm_format);
fb->bpp_c = fb_bpp_c(drm_format);
fb->bo_y_id = bo_handles[0];
fb->bo_cb_id = bo_handles[1];
fb->bo_cr_id = bo_handles[2];
fb->bo_y = bo;
fb->bo_cb = bo_cb;
fb->bo_cr = bo_cr;
fb->pitch_y = pitches[0];
fb->pitch_cb = pitches[1];
fb->pitch_cr = pitches[2];
fb->offset_y = offsets[0];
fb->offset_cb = offsets[1];
fb->offset_cr = offsets[2];
fb->width_pad = (fb_pitch_aligned(drm_format, width) -
fb_pitch(drm_format, width)) *
fb_height_aligned(drm_format, height);
fb->height_pad = (fb_height_aligned(drm_format, height) - height) *
fb_pitch_aligned(drm_format, width);
fb->height_offset = (fb_height_aligned(drm_format, height) - height) *
fb->bpp / 8;
fb->width_c_pad = (fb_pitch_c_aligned(drm_format, width) -
fb_pitch_c(drm_format, width)) *
fb_height_c_aligned(drm_format, height);
fb->height_c_pad = (fb_height_c_aligned(drm_format, height) - fb->height_c) *
fb_pitch_c_aligned(drm_format, width);
fb->height_c_offset = (fb_height_c_aligned(drm_format, height) - fb->height_c) *
fb->bpp_c / 8;
if (dont_map)
return fb;
err = drm_tegra_bo_map(fb->bo_y, (void **)&fb->bo_y_mmap);
if (err)
goto error_cleanup;
fb->bo_y_mmap += fb->offset_y;
if (!format_planar(drm_format))
return fb;
err = drm_tegra_bo_map(fb->bo_cb, (void **)&fb->bo_cb_mmap);
if (err)
goto error_cleanup;
err = drm_tegra_bo_map(fb->bo_cr, (void **)&fb->bo_cr_mmap);
if (err)
goto error_cleanup;
fb->bo_cb_mmap += fb->offset_cb;
fb->bo_cr_mmap += fb->offset_cr;
return fb;
error_cleanup:
if (from_handle)
return NULL;
if (fb_id != HANDLE_INVALID)
drmModeRmFB(drm_fd, fb_id);
drm_tegra_bo_unref(bo);
drm_tegra_bo_unref(bo_cb);
drm_tegra_bo_unref(bo_cr);
free(fb);
return NULL;
}
int main(int argc, char *argv[])
{
EGLDisplay dpy;
EGLContext ctx;
EGLSurface surface;
EGLConfig config;
EGLint major, minor, n;
const char *ver;
uint32_t handle, stride;
struct kms kms;
int ret, fd;
struct gbm_device *gbm;
struct gbm_bo *bo;
drmModeCrtcPtr saved_crtc;
struct gbm_surface *gs;
fd = open(device_name, O_RDWR);
if (fd < 0) {
/* Probably permissions error */
fprintf(stderr, "couldn't open %s, skipping\n", device_name);
return -1;
}
gbm = gbm_create_device(fd);
if (gbm == NULL) {
fprintf(stderr, "couldn't create gbm device\n");
ret = -1;
goto close_fd;
}
dpy = eglGetDisplay(gbm);
if (dpy == EGL_NO_DISPLAY) {
fprintf(stderr, "eglGetDisplay() failed\n");
ret = -1;
goto destroy_gbm_device;
}
if (!eglInitialize(dpy, &major, &minor)) {
printf("eglInitialize() failed\n");
ret = -1;
goto egl_terminate;
}
ver = eglQueryString(dpy, EGL_VERSION);
printf("EGL_VERSION = %s\n", ver);
if (!setup_kms(fd, &kms)) {
ret = -1;
goto egl_terminate;
}
eglBindAPI(EGL_OPENGL_API);
if (!eglChooseConfig(dpy, attribs, &config, 1, &n) || n != 1) {
fprintf(stderr, "failed to choose argb config\n");
goto egl_terminate;
}
ctx = eglCreateContext(dpy, config, EGL_NO_CONTEXT, NULL);
if (ctx == NULL) {
fprintf(stderr, "failed to create context\n");
ret = -1;
goto egl_terminate;
}
gs = gbm_surface_create(gbm, kms.mode.hdisplay, kms.mode.vdisplay,
GBM_BO_FORMAT_XRGB8888,
GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
surface = eglCreateWindowSurface(dpy, config, gs, NULL);
if (!eglMakeCurrent(dpy, surface, surface, ctx)) {
fprintf(stderr, "failed to make context current\n");
ret = -1;
goto destroy_context;
}
render_stuff(kms.mode.hdisplay, kms.mode.vdisplay);
eglSwapBuffers(dpy, surface);
bo = gbm_surface_lock_front_buffer(gs);
handle = gbm_bo_get_handle(bo).u32;
stride = gbm_bo_get_stride(bo);
printf("handle=%d, stride=%d\n", handle, stride);
ret = drmModeAddFB(fd,
kms.mode.hdisplay, kms.mode.vdisplay,
24, 32, stride, handle, &kms.fb_id);
if (ret) {
fprintf(stderr, "failed to create fb\n");
goto rm_fb;
}
saved_crtc = drmModeGetCrtc(fd, kms.encoder->crtc_id);
if (saved_crtc == NULL)
goto rm_fb;
ret = drmModeSetCrtc(fd, kms.encoder->crtc_id, kms.fb_id, 0, 0,
&kms.connector->connector_id, 1, &kms.mode);
if (ret) {
fprintf(stderr, "failed to set mode: %m\n");
goto free_saved_crtc;
}
getchar();
ret = drmModeSetCrtc(fd, saved_crtc->crtc_id, saved_crtc->buffer_id,
saved_crtc->x, saved_crtc->y,
&kms.connector->connector_id, 1, &saved_crtc->mode);
if (ret) {
fprintf(stderr, "failed to restore crtc: %m\n");
}
free_saved_crtc:
drmModeFreeCrtc(saved_crtc);
rm_fb:
drmModeRmFB(fd, kms.fb_id);
eglMakeCurrent(dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
destroy_context:
eglDestroyContext(dpy, ctx);
egl_terminate:
eglTerminate(dpy);
destroy_gbm_device:
gbm_device_destroy(gbm);
close_fd:
close(fd);
return ret;
}
ExtFramebuffer::~ExtFramebuffer()
{
drmModeRmFB(card().fd(), id());
}
