2025-05-10 21:58:58 +08:00

232 lines
6.2 KiB
C
Executable File

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include <drm_fourcc.h>
#include "modeset.h"
#include "bo.h"
#include "dev.h"
int initialize_screens(struct sp_dev* dev) {
int ret, i, j;
for (i = 0; i < dev->num_connectors; i++) {
drmModeConnectorPtr c = dev->connectors[i];
drmModeModeInfoPtr m = NULL;
drmModeEncoderPtr e = NULL;
struct sp_crtc* cr = NULL;
if (c->connection != DRM_MODE_CONNECTED)
continue;
if (!c->count_modes) {
printf("connector has no modes, skipping\n");
continue;
}
/* Take the first unless there's a preferred mode */
m = &c->modes[0];
for (j = 0; j < c->count_modes; j++) {
drmModeModeInfoPtr tmp_m = &c->modes[j];
if (!(tmp_m->type & DRM_MODE_TYPE_PREFERRED))
continue;
m = tmp_m;
break;
}
if (!c->encoder_id) {
/*
* default drm encoder not attached connector, just
* select the first one.
*/
if (dev->num_encoders) {
e = dev->encoders[0];
c->encoder_id = e->encoder_id;
} else {
printf("no encoder attached to the connector\n");
continue;
}
}
for (j = 0; j < dev->num_encoders; j++) {
e = dev->encoders[j];
if (e->encoder_id == c->encoder_id)
break;
}
if (j == dev->num_encoders) {
printf("could not find encoder for the connector\n");
continue;
}
if (!e->crtc_id) {
/*
* default drm crtc not attached encoder, just
* select the first one.
*/
if (dev->num_crtcs) {
cr = &dev->crtcs[j];
e->crtc_id = cr->crtc->crtc_id;
} else {
printf("no crtc attached to the encoder\n");
continue;
}
}
for (j = 0; j < dev->num_crtcs; j++) {
cr = &dev->crtcs[j];
if (cr->crtc->crtc_id == e->crtc_id)
break;
}
if (j == dev->num_crtcs) {
printf("could not find crtc for the encoder\n");
continue;
}
if (cr->scanout) {
printf("crtc already in use\n");
continue;
}
/* XXX: Hardcoding the format here... :| */
cr->scanout = create_sp_bo(dev, m->hdisplay, m->vdisplay,
24, 32, DRM_FORMAT_XRGB8888, 0);
if (!cr->scanout) {
printf("failed to create new scanout bo\n");
continue;
}
ret = add_fb_sp_bo(cr->scanout, DRM_FORMAT_XRGB8888);
if (ret) {
printf("failed to add fb ret=%d\n", ret);
continue;
}
//fill_bo(cr->scanout, 0xFF, 0x0, 0x0, 0xFF);
ret = drmModeSetCrtc(dev->fd, cr->crtc->crtc_id,
cr->scanout->fb_id, 0, 0, &c->connector_id,
1, m);
if (ret) {
printf("failed to set crtc mode ret=%d\n", ret);
continue;
}
cr->crtc = drmModeGetCrtc(dev->fd, cr->crtc->crtc_id);
/*
* Todo:
* I don't know why crtc mode is empty, just copy PREFERRED mode
* for it.
*/
memcpy(&cr->crtc->mode, m, sizeof(*m));
}
return 0;
}
struct sp_plane* get_sp_plane(struct sp_dev* dev, struct sp_crtc* crtc) {
int i;
for (i = 0; i < dev->num_planes; i++) {
struct sp_plane* p = &dev->planes[i];
if (p->in_use)
continue;
if (!(p->plane->possible_crtcs & (1 << crtc->pipe)))
continue;
p->in_use = 1;
return p;
}
return NULL;
}
void put_sp_plane(struct sp_plane* plane) {
drmModePlanePtr p;
/* Get the latest plane information (most notably the crtc_id) */
p = drmModeGetPlane(plane->dev->fd, plane->plane->plane_id);
if (p)
plane->plane = p;
if (plane->plane->crtc_id)
drmModeSetPlane(plane->dev->fd, plane->plane->plane_id,
plane->plane->crtc_id, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0);
if (plane->bo) {
free_sp_bo(plane->bo);
plane->bo = NULL;
}
plane->in_use = 0;
}
int set_sp_plane(struct sp_dev* dev, struct sp_plane* plane,
struct sp_crtc* crtc, int x, int y) {
int ret;
uint32_t w, h;
w = plane->bo->width;
h = plane->bo->height;
if ((w + x) > crtc->crtc->mode.hdisplay)
w = crtc->crtc->mode.hdisplay - x;
if ((h + y) > crtc->crtc->mode.vdisplay)
h = crtc->crtc->mode.vdisplay - y;
ret = drmModeSetPlane(dev->fd, plane->plane->plane_id,
crtc->crtc->crtc_id, plane->bo->fb_id, 0, x, y, w, h,
0, 0, w << 16, h << 16);
if (ret) {
printf("failed to set plane to crtc ret=%d\n", ret);
return ret;
}
return ret;
}
#ifdef USE_ATOMIC_API
int set_sp_plane_pset(struct sp_dev* dev, struct sp_plane* plane,
drmModePropertySetPtr pset, struct sp_crtc* crtc, int x, int y) {
int ret;
uint32_t w, h;
w = plane->bo->width;
h = plane->bo->height;
if ((w + x) > crtc->crtc->mode.hdisplay)
w = crtc->crtc->mode.hdisplay - x;
if ((h + y) > crtc->crtc->mode.vdisplay)
h = crtc->crtc->mode.vdisplay - y;
ret = drmModePropertySetAdd(pset, plane->plane->plane_id,
plane->crtc_pid, crtc->crtc->crtc_id)
|| drmModePropertySetAdd(pset, plane->plane->plane_id,
plane->fb_pid, plane->bo->fb_id)
|| drmModePropertySetAdd(pset, plane->plane->plane_id,
plane->crtc_x_pid, x)
|| drmModePropertySetAdd(pset, plane->plane->plane_id,
plane->crtc_y_pid, y)
|| drmModePropertySetAdd(pset, plane->plane->plane_id,
plane->crtc_w_pid, w)
|| drmModePropertySetAdd(pset, plane->plane->plane_id,
plane->crtc_h_pid, h)
|| drmModePropertySetAdd(pset, plane->plane->plane_id,
plane->src_x_pid, 0)
|| drmModePropertySetAdd(pset, plane->plane->plane_id,
plane->src_y_pid, 0)
|| drmModePropertySetAdd(pset, plane->plane->plane_id,
plane->src_w_pid, w << 16)
|| drmModePropertySetAdd(pset, plane->plane->plane_id,
plane->src_h_pid, h << 16);
if (ret) {
printf("failed to add properties to the set\n");
return -1;
}
return ret;
}
#endif