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kmsvnc/drm.c

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init
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#include <stdio.h>
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#include <assert.h>
init
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#include <errno.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <string.h>
#include <stdlib.h>
#include <sys/ioctl.h>
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#include <libdrm/drm_fourcc.h>
init
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#include "drm.h"
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#include "va.h"
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#ifndef DISABLE_KMSVNC_SCREEN_BLANK
#include "drm_master.h"
#endif
#ifndef fourcc_mod_is_vendor
#define fourcc_mod_is_vendor(modifier, vendor) \
(fourcc_mod_get_vendor(modifier) == DRM_FORMAT_MOD_VENDOR_## vendor)
#endif
#ifdef DISABLE_KMSVNC_drmGetFormatName
static char* drmGetFormatName(uint32_t data) {
char *name = "missing drmGetFormatName";
char *out = malloc(strlen(name)+1);
if (out) {
memcpy(out, name, strlen(name)+1);
}
return out;
}
#endif
init
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extern struct kmsvnc_data *kmsvnc;
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static int check_pixfmt_non_vaapi() {
if (
kmsvnc->drm->mfb->pixel_format != KMSVNC_FOURCC_TO_INT('X', 'R', '2', '4') &&
kmsvnc->drm->mfb->pixel_format != KMSVNC_FOURCC_TO_INT('A', 'R', '2', '4')
)
{
KMSVNC_FATAL("Unsupported pixfmt %s, please create an issue with your pixfmt.\n", kmsvnc->drm->pixfmt_name);
}
return 0;
}
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static void convert_copy(const char *in, int width, int height, char *buff)
{
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if (likely(in != buff)) {
memcpy(buff, in, width * height * BYTES_PER_PIXEL);
}
init
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}
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static void convert_bgra_to_rgba(const char *in, int width, int height, char *buff)
init
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{
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if (likely(in != buff)) {
memcpy(buff, in, width * height * BYTES_PER_PIXEL);
}
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for (int i = 0; i < width * height * BYTES_PER_PIXEL; i += BYTES_PER_PIXEL) {
fix wrong variable name, closes github #4
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uint32_t pixdata = htonl(*((uint32_t*)(buff + i)));
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buff[i+0] = (pixdata & 0x0000ff00) >> 8;
buff[i+2] = (pixdata & 0xff000000) >> 24;
init
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}
}
vaapi fix
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static inline char convert_buf_allocate(size_t len) {
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if (kmsvnc->drm->kms_convert_buf_len < len)
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{
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if (kmsvnc->drm->kms_convert_buf)
free(kmsvnc->drm->kms_convert_buf);
kmsvnc->drm->kms_convert_buf = malloc(len);
if (!kmsvnc->drm->kms_convert_buf) return 1;
kmsvnc->drm->kms_convert_buf_len = len;
vaapi fix
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}
return 0;
}
long way to go
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static inline void convert_x_tiled(const int tilex, const int tiley, const char *in, int width, int height, char *buff)
init
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{
long way to go
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if (width % tilex)
init
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{
return;
}
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if (height % tiley)
init
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{
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int sno = (width / tilex) + (height / tiley) * (width / tilex);
int ord = (width % tilex) + (height % tiley) * tilex;
int max_offset = sno * tilex * tiley + ord;
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if (kmsvnc->drm->kms_cpy_tmp_buf_len < max_offset * 4 + 4)
init
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{
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if (kmsvnc->drm->kms_cpy_tmp_buf)
free(kmsvnc->drm->kms_convert_buf);
kmsvnc->drm->kms_cpy_tmp_buf = malloc(max_offset * 4 + 4);
if (!kmsvnc->drm->kms_cpy_tmp_buf) return;
kmsvnc->drm->kms_cpy_tmp_buf_len = max_offset * 4 + 4;
init
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}
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memcpy(kmsvnc->drm->kms_cpy_tmp_buf, in, max_offset * 4 + 4);
in = (const char *)kmsvnc->drm->kms_cpy_tmp_buf;
init
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}
vaapi fix
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if (convert_buf_allocate(width * height * 4)) return;
init
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for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
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int sno = (x / tilex) + (y / tiley) * (width / tilex);
int ord = (x % tilex) + (y % tiley) * tilex;
int offset = sno * tilex * tiley + ord;
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memcpy(kmsvnc->drm->kms_convert_buf + (x + y * width) * 4, in + offset * 4, 4);
init
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}
}
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convert_bgra_to_rgba(kmsvnc->drm->kms_convert_buf, width, height, buff);
init
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}
long way to go
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void convert_nvidia_x_tiled_kmsbuf(const char *in, int width, int height, char *buff)
init
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{
long way to go
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convert_x_tiled(16, 128, in, width, height, buff);
init
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}
long way to go
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void convert_intel_x_tiled_kmsbuf(const char *in, int width, int height, char *buff)
init
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{
long way to go
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convert_x_tiled(128, 8, in, width, height, buff);
init
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}
vaapi fix
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static void convert_vaapi(const char *in, int width, int height, char *buff) {
fix wrong byte order in bypass routine
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va_hwframe_to_vaapi(buff);
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if (
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(KMSVNC_FOURCC_TO_INT('R','G','B',0) & kmsvnc->va->selected_fmt->fourcc) == KMSVNC_FOURCC_TO_INT('R','G','B',0)
) {}
support RGB32_10 pixfmt
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else {
// is 30 depth?
use hardcoded image format by default (github #7)
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if (kmsvnc->va->selected_fmt->depth == 30) {
support RGB32_10 pixfmt
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for (int i = 0; i < width * height * BYTES_PER_PIXEL; i += BYTES_PER_PIXEL) {
WIP: allow capture cursor
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// ensure little endianess
fix wrong byte order in bypass routine
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uint32_t pixdata = __builtin_bswap32(htonl(*((uint32_t*)(buff + i))));
buff[i] = (pixdata & 0x3ff00000) >> 20 >> 2;
buff[i+1] = (pixdata & 0xffc00) >> 10 >> 2;
buff[i+2] = (pixdata & 0x3ff) >> 2;
support RGB32_10 pixfmt
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}
}
proper byte order quirk handling
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else {
finally fixed color issue, github #7
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// actually, does anyone use this?
if (!kmsvnc->va->selected_fmt->byte_order) {
proper byte order quirk handling
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for (int i = 0; i < width * height * BYTES_PER_PIXEL; i += BYTES_PER_PIXEL) {
fix wrong byte order in bypass routine
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uint32_t *pixdata = (uint32_t*)(buff + i);
proper byte order quirk handling
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*pixdata = __builtin_bswap32(*pixdata);
}
}
}
support RGB32_10 pixfmt
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// is xrgb?
use hardcoded image format by default (github #7)
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if ((kmsvnc->va->selected_fmt->blue_mask | kmsvnc->va->selected_fmt->red_mask) < 0x1000000) {
vaapi fix
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for (int i = 0; i < width * height * BYTES_PER_PIXEL; i += BYTES_PER_PIXEL) {
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uint32_t *pixdata = (uint32_t*)(buff + i);
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*pixdata = ntohl(htonl(*pixdata) << 8);
vaapi fix
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}
}
WIP: allow capture cursor
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// is bgrx?
use hardcoded image format by default (github #7)
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if (kmsvnc->va->selected_fmt->blue_mask > kmsvnc->va->selected_fmt->red_mask) {
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for (int i = 0; i < width * height * BYTES_PER_PIXEL; i += BYTES_PER_PIXEL) {
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uint32_t pixdata = htonl(*((uint32_t*)(buff + i)));
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buff[i+0] = (pixdata & 0x0000ff00) >> 8;
buff[i+2] = (pixdata & 0xff000000) >> 24;
}
support RGB32_10 pixfmt
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}
vaapi fix
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}
}
init
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static inline void drm_sync(int drmfd, uint64_t flags)
{
struct dma_buf_sync sync = {
.flags = flags,
};
vaapi: wip
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DRM_R_IOCTL_MAY(drmfd, DMA_BUF_IOCTL_SYNC, &sync);
init
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}
void drm_sync_start(int drmfd)
{
drm_sync(drmfd, DMA_BUF_SYNC_START | DMA_BUF_SYNC_READ);
}
void drm_sync_end(int drmfd)
{
drm_sync(drmfd, DMA_BUF_SYNC_END | DMA_BUF_SYNC_READ);
}
void drm_sync_noop(int drmfd)
{
}
void drm_cleanup() {
if (kmsvnc->drm) {
resolve github #8
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#ifndef DISABLE_KMSVNC_SCREEN_BLANK
allow screen blank for privacy
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if (kmsvnc->drm->gamma && kmsvnc->drm->gamma->size && kmsvnc->drm->gamma->red && kmsvnc->drm->gamma->green && kmsvnc->drm->gamma->blue) {
if (drmModeCrtcSetGamma(kmsvnc->drm->drm_master_fd ?: kmsvnc->drm->drm_fd, kmsvnc->drm->plane->crtc_id, kmsvnc->drm->gamma->size, kmsvnc->drm->gamma->red, kmsvnc->drm->gamma->green, kmsvnc->drm->gamma->blue)) perror("Failed to restore gamma");
}
if (kmsvnc->drm->gamma && kmsvnc->drm->gamma->red) {
free(kmsvnc->drm->gamma->red);
kmsvnc->drm->gamma->red = kmsvnc->drm->gamma->green = kmsvnc->drm->gamma->blue = NULL;
}
if (kmsvnc->drm->gamma) {
free(kmsvnc->drm->gamma);
kmsvnc->drm->gamma = NULL;
}
resolve github #8
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#endif
init
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if (kmsvnc->drm->drm_ver) {
drmFreeVersion(kmsvnc->drm->drm_ver);
kmsvnc->drm->drm_ver = NULL;
}
vaapi: wip
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if (kmsvnc->drm->pixfmt_name) {
free(kmsvnc->drm->pixfmt_name);
kmsvnc->drm->pixfmt_name = NULL;
}
if (kmsvnc->drm->mod_vendor) {
free(kmsvnc->drm->mod_vendor);
kmsvnc->drm->mod_vendor = NULL;
}
if (kmsvnc->drm->mod_name) {
free(kmsvnc->drm->mod_name);
kmsvnc->drm->mod_name = NULL;
}
init
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if (kmsvnc->drm->plane) {
drmModeFreePlane(kmsvnc->drm->plane);
kmsvnc->drm->plane = NULL;
}
WIP: allow capture cursor
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if (kmsvnc->drm->cursor_plane) {
drmModeFreePlane(kmsvnc->drm->cursor_plane);
kmsvnc->drm->cursor_plane = NULL;
}
init
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if (kmsvnc->drm->mfb) {
long way to go
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drmModeFreeFB2(kmsvnc->drm->mfb);
init
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kmsvnc->drm->mfb = NULL;
}
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if (kmsvnc->drm->cursor_mfb) {
drmModeFreeFB2(kmsvnc->drm->cursor_mfb);
kmsvnc->drm->cursor_mfb = NULL;
}
if (kmsvnc->drm->mapped && kmsvnc->drm->mapped != MAP_FAILED) {
init
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munmap(kmsvnc->drm->mapped, kmsvnc->drm->mmap_size);
kmsvnc->drm->mapped = NULL;
}
WIP: allow capture cursor
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if (kmsvnc->drm->cursor_mapped && kmsvnc->drm->cursor_mapped != MAP_FAILED) {
munmap(kmsvnc->drm->cursor_mapped, kmsvnc->drm->cursor_mmap_size);
kmsvnc->drm->cursor_mapped = NULL;
}
init
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if (kmsvnc->drm->prime_fd > 0) {
close(kmsvnc->drm->prime_fd);
kmsvnc->drm->prime_fd = 0;
}
if (kmsvnc->drm->drm_fd > 0) {
close(kmsvnc->drm->drm_fd);
kmsvnc->drm->drm_fd = 0;
}
allow screen blank for privacy
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if (kmsvnc->drm->drm_master_fd > 0) {
close(kmsvnc->drm->drm_master_fd);
kmsvnc->drm->drm_master_fd = 0;
}
add more debug functionalities
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if (kmsvnc->drm->plane_res) {
drmModeFreePlaneResources(kmsvnc->drm->plane_res);
kmsvnc->drm->plane_res = NULL;
}
WIP: allow capture cursor
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if (kmsvnc->drm->kms_convert_buf) {
free(kmsvnc->drm->kms_convert_buf);
kmsvnc->drm->kms_convert_buf = NULL;
}
kmsvnc->drm->kms_convert_buf_len = 0;
if (kmsvnc->drm->kms_cpy_tmp_buf) {
free(kmsvnc->drm->kms_cpy_tmp_buf);
kmsvnc->drm->kms_cpy_tmp_buf = NULL;
}
kmsvnc->drm->kms_cpy_tmp_buf_len = 0;
if (kmsvnc->drm->kms_cursor_buf) {
free(kmsvnc->drm->kms_cursor_buf);
kmsvnc->drm->kms_cursor_buf = NULL;
}
kmsvnc->drm->kms_cursor_buf_len = 0;
init
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free(kmsvnc->drm);
kmsvnc->drm = NULL;
}
}
WIP: allow capture cursor
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static const char* drm_get_plane_type_name(uint64_t plane_type) {
switch (plane_type) {
case DRM_PLANE_TYPE_OVERLAY:
return "overlay";
case DRM_PLANE_TYPE_PRIMARY:
return "primary";
case DRM_PLANE_TYPE_CURSOR:
return "cursor";
default:
return "unknown";
init
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}
WIP: allow capture cursor
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};
long way to go
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WIP: allow capture cursor
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static int drm_refresh_planes(char first_time) {
struct kmsvnc_drm_data *drm = kmsvnc->drm;
if (!drm->plane && kmsvnc->source_plane > 0)
init
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{
add more debug functionalities
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drm->plane = drmModeGetPlane(drm->drm_fd, kmsvnc->source_plane);
init
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if (!drm->plane)
vaapi: wip
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KMSVNC_FATAL("Failed to get plane %d: %s\n", kmsvnc->source_plane, strerror(errno));
init
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if (drm->plane->fb_id == 0)
add more debug functionalities
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fprintf(stderr, "Place %d does not have an attached framebuffer\n", kmsvnc->source_plane);
init
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}
WIP: allow capture cursor
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if (!drm->plane || (kmsvnc->capture_cursor && !drm->cursor_plane)) {
drmModePlane *current_plane = NULL;
refine cursor capture
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if (drm->plane_res) {
drmModeFreePlaneResources(kmsvnc->drm->plane_res);
drm->plane_res = NULL;
}
init
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drm->plane_res = drmModeGetPlaneResources(drm->drm_fd);
if (!drm->plane_res)
vaapi: wip
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KMSVNC_FATAL("Failed to get plane resources: %s\n", strerror(errno));
init
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int i;
for (i = 0; i < drm->plane_res->count_planes; i++)
{
WIP: allow capture cursor
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current_plane = drmModeGetPlane(drm->drm_fd, drm->plane_res->planes[i]);
if (!current_plane)
init
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{
fprintf(stderr, "Failed to get plane %u: %s\n", drm->plane_res->planes[i], strerror(errno));
continue;
}
WIP: allow capture cursor
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// get plane type
uint64_t plane_type = 114514;
drmModeObjectPropertiesPtr plane_props = drmModeObjectGetProperties(drm->drm_fd, current_plane->plane_id, DRM_MODE_OBJECT_PLANE);
if (!plane_props) {
fprintf(stderr, "Failed to get plane prop %u: %s\n", drm->plane_res->planes[i], strerror(errno));
}
else {
for (int i = 0; i < plane_props->count_props; i++) {
drmModePropertyPtr plane_prop = drmModeGetProperty(drm->drm_fd, plane_props->props[i]);
if (strcmp(plane_prop->name, "type") == 0) {
plane_type = plane_props->prop_values[i];
}
drmModeFreeProperty(plane_prop);
}
drmModeFreeObjectProperties(plane_props);
}
assert(drm->plane_res->planes[i] == current_plane->plane_id);
if (first_time) {
printf("Plane %u CRTC %u FB %u Type %s\n", current_plane->plane_id, current_plane->crtc_id, current_plane->fb_id, drm_get_plane_type_name(plane_type));
init
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}
WIP: allow capture cursor
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// populate drm->plane and drm->cursor_plane
char nofree = 0;
if (current_plane->fb_id != 0) {
if (!drm->plane) {
if (kmsvnc->source_crtc == 0 || current_plane->crtc_id == kmsvnc->source_crtc) {
nofree = 1;
drm->plane = current_plane;
}
}
// assume cursor plane is always after primary plane
if (!drm->cursor_plane) {
if (drm->plane && drm->plane->crtc_id == current_plane->crtc_id && plane_type == DRM_PLANE_TYPE_CURSOR) {
nofree = 1;
drm->cursor_plane = current_plane;
}
}
}
if ((!kmsvnc->capture_cursor || drm->cursor_plane) && drm->plane) {
break;
}
if (!nofree) {
drmModeFreePlane(current_plane);
}
current_plane = NULL;
init
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}
WIP: allow capture cursor
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if (!first_time) return 0;
init
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if (i == drm->plane_res->count_planes)
{
WIP: allow capture cursor
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if (!drm->plane) {
if (kmsvnc->source_crtc != 0)
{
KMSVNC_FATAL("No usable planes found on CRTC %d\n", kmsvnc->source_crtc);
}
else
{
KMSVNC_FATAL("No usable planes found\n");
}
init
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}
WIP: allow capture cursor
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else if (!drm->cursor_plane) {
fprintf(stderr, "No usable cursor plane found, cursor capture currently unavailable\n");
init
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}
}
printf("Using plane %u to locate framebuffers\n", drm->plane->plane_id);
WIP: allow capture cursor
2023-07-16 01:34:58 +08:00
if (drm->cursor_plane) {
printf("Using cursor plane %u\n", drm->cursor_plane->plane_id);
}
}
return 0;
}
int drm_dump_cursor_plane(char **data, int *width, int *height) {
struct kmsvnc_drm_data *drm = kmsvnc->drm;
refine cursor capture
2023-07-16 10:43:22 +08:00
if (!drm->cursor_plane) {
drm_refresh_planes(0); // ignore error
if (drm->cursor_plane) {
printf("Using cursor plane %u\n", drm->cursor_plane->plane_id);
}
}
else {
uint32_t plane_id = drm->cursor_plane->plane_id;
WIP: allow capture cursor
2023-07-16 01:34:58 +08:00
drmModeFreePlane(drm->cursor_plane);
drm->cursor_plane = NULL;
refine cursor capture
2023-07-16 10:43:22 +08:00
drm->cursor_plane = drmModeGetPlane(drm->drm_fd, plane_id);
WIP: allow capture cursor
2023-07-16 01:34:58 +08:00
}
if (!drm->cursor_plane) {
data = NULL;
return 1;
}
if (drm->cursor_mfb) drmModeFreeFB2(drm->cursor_mfb);
drm->cursor_mfb = drmModeGetFB2(drm->drm_fd, drm->cursor_plane->fb_id);
if (!drm->cursor_mfb) {
KMSVNC_DEBUG("Cursor framebuffer missing\n");
return 1;
}
refine cursor capture
2023-07-16 10:43:22 +08:00
WIP: allow capture cursor
2023-07-16 01:34:58 +08:00
if (drm->cursor_mfb->modifier != DRM_FORMAT_MOD_NONE && drm->cursor_mfb->modifier != DRM_FORMAT_MOD_LINEAR) {
//kmsvnc->capture_cursor = 0;
KMSVNC_DEBUG("Cursor plane modifier is not linear: %lu\n", drm->cursor_mfb->modifier);
return 1;
}
if (
drm->cursor_mfb->pixel_format != KMSVNC_FOURCC_TO_INT('A', 'R', '2', '4') &&
drm->cursor_mfb->pixel_format != KMSVNC_FOURCC_TO_INT('A', 'R', '3', '0')
)
{
//kmsvnc->capture_cursor = 0;
char *fmtname = drmGetFormatName(drm->cursor_mfb->pixel_format);
KMSVNC_DEBUG("Cursor plane pixel format unsupported (%u, %s)\n", drm->cursor_mfb->pixel_format, fmtname);
free(fmtname);
return 1;
}
struct drm_gem_flink flink;
flink.handle = drm->cursor_mfb->handles[0];
DRM_IOCTL_MUST(drm->drm_fd, DRM_IOCTL_GEM_FLINK, &flink);
struct drm_gem_open open_arg;
open_arg.name = flink.name;
DRM_IOCTL_MUST(drm->drm_fd, DRM_IOCTL_GEM_OPEN, &open_arg);
struct drm_mode_map_dumb mreq;
memset(&mreq, 0, sizeof(mreq));
mreq.handle = open_arg.handle;
DRM_IOCTL_MUST(drm->drm_fd, DRM_IOCTL_MODE_MAP_DUMB, &mreq);
size_t mmap_size = open_arg.size;
if (mmap_size != drm->cursor_mfb->width * drm->cursor_mfb->height * BYTES_PER_PIXEL) {
fix warning
2023-07-16 10:50:07 +08:00
KMSVNC_DEBUG("Cursor plane mmap_size != calculated size (%ld, %d)\n", mmap_size, drm->cursor_mfb->width * drm->cursor_mfb->height * BYTES_PER_PIXEL);
WIP: allow capture cursor
2023-07-16 01:34:58 +08:00
return 1;
}
off_t mmap_offset = mreq.offset;
if (drm->cursor_mapped && drm->cursor_mapped != MAP_FAILED) munmap(drm->cursor_mapped, drm->cursor_mmap_size);
drm->cursor_mapped = mmap(NULL, mmap_size, PROT_READ, MAP_SHARED, drm->drm_fd, mmap_offset);
if (drm->cursor_mapped == MAP_FAILED)
{
KMSVNC_DEBUG("Failed to mmap cursor: %s\n", strerror(errno));
return 1;
}
else
{
if (kmsvnc->drm->kms_cursor_buf_len < mmap_size)
{
if (kmsvnc->drm->kms_cursor_buf)
free(kmsvnc->drm->kms_cursor_buf);
kmsvnc->drm->kms_cursor_buf = malloc(mmap_size);
if (!kmsvnc->drm->kms_cursor_buf) return 1;
kmsvnc->drm->kms_cursor_buf_len = mmap_size;
}
memcpy(drm->kms_cursor_buf, drm->cursor_mapped, mmap_size);
if (drm->cursor_mfb->pixel_format == KMSVNC_FOURCC_TO_INT('X', 'R', '3', '0') ||
drm->cursor_mfb->pixel_format == KMSVNC_FOURCC_TO_INT('A', 'R', '3', '0'))
{
for (int i = 0; i < drm->cursor_mfb->width * drm->cursor_mfb->height * BYTES_PER_PIXEL; i += BYTES_PER_PIXEL) {
uint32_t pixdata = __builtin_bswap32(htonl(*((uint32_t*)(kmsvnc->drm->kms_cursor_buf + i))));
kmsvnc->drm->kms_cursor_buf[i] = (pixdata & 0x3ff00000) >> 20 >> 2;
kmsvnc->drm->kms_cursor_buf[i+1] = (pixdata & 0xffc00) >> 10 >> 2;
kmsvnc->drm->kms_cursor_buf[i+2] = (pixdata & 0x3ff) >> 2;
kmsvnc->drm->kms_cursor_buf[i+3] = (pixdata & 0xc0000000) >> 30 << 6;
}
}
if (drm->cursor_mfb->pixel_format == KMSVNC_FOURCC_TO_INT('X', 'R', '2', '4') ||
drm->cursor_mfb->pixel_format == KMSVNC_FOURCC_TO_INT('A', 'R', '2', '4'))
{
// bgra to rgba
for (int i = 0; i < drm->cursor_mfb->width * drm->cursor_mfb->height * BYTES_PER_PIXEL; i += BYTES_PER_PIXEL) {
uint32_t pixdata = htonl(*((uint32_t*)(kmsvnc->drm->kms_cursor_buf + i)));
kmsvnc->drm->kms_cursor_buf[i+0] = (pixdata & 0x0000ff00) >> 8;
kmsvnc->drm->kms_cursor_buf[i+2] = (pixdata & 0xff000000) >> 24;
}
}
*width = drm->cursor_mfb->width;
*height = drm->cursor_mfb->height;
*data = drm->kms_cursor_buf;
}
return 0;
}
int drm_open() {
struct kmsvnc_drm_data *drm = malloc(sizeof(struct kmsvnc_drm_data));
if (!drm) KMSVNC_FATAL("memory allocation error at %s:%d\n", __FILE__, __LINE__);
memset(drm, 0, sizeof(struct kmsvnc_drm_data));
kmsvnc->drm = drm;
drm->drm_fd = open(kmsvnc->card, O_RDONLY);
if (drm->drm_fd < 0)
{
KMSVNC_FATAL("card %s open failed: %s\n", kmsvnc->card, strerror(errno));
}
drm: drop master if unnecessary
2023-08-12 00:01:31 +08:00
if (!kmsvnc->screen_blank && drmIsMaster(drm->drm_fd)) {
if (drmDropMaster(drm->drm_fd)) fprintf(stderr, "Failed to drop master");
}
resolve github #8
2024-01-23 10:39:39 +08:00
#ifndef DISABLE_KMSVNC_SCREEN_BLANK
allow screen blank for privacy
2023-08-11 00:25:26 +08:00
if (kmsvnc->screen_blank && !drmIsMaster(drm->drm_fd)) {
drm->drm_master_fd = drm_get_master_fd();
drm->drm_master_fd = drm->drm_master_fd > 0 ? drm->drm_master_fd : 0;
if (kmsvnc->debug_enabled) {
fprintf(stderr, "not master client, master fd %d\n", drm->drm_master_fd);
}
}
resolve github #8
2024-01-23 10:39:39 +08:00
#endif
allow screen blank for privacy
2023-08-11 00:25:26 +08:00
WIP: allow capture cursor
2023-07-16 01:34:58 +08:00
drm->drm_ver = drmGetVersion(drm->drm_fd);
printf("drm driver is %s\n", drm->drm_ver->name);
int err = drmSetClientCap(drm->drm_fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1);
if (err < 0)
{
perror("Failed to set universal planes capability: primary planes will not be usable");
init
2023-04-27 19:35:18 +08:00
}
WIP: allow capture cursor
2023-07-16 01:34:58 +08:00
if (drm_refresh_planes(1)) return 1;
long way to go
2023-04-27 23:42:41 +08:00
resolve github #8
2024-01-23 10:39:39 +08:00
#ifndef DISABLE_KMSVNC_SCREEN_BLANK
allow screen blank for privacy
2023-08-11 00:25:26 +08:00
if (kmsvnc->screen_blank) {
drm->gamma = malloc(sizeof(struct kmsvnc_drm_gamma_data));
if (!drm->gamma) KMSVNC_FATAL("memory allocation error at %s:%d\n", __FILE__, __LINE__);
memset(drm->gamma, 0, sizeof(struct kmsvnc_drm_gamma_data));
drmModeCrtc *target_crtc = drmModeGetCrtc(drm->drm_fd, drm->plane->crtc_id);
if (target_crtc) {
drm->gamma->size = (uint32_t)target_crtc->gamma_size;
drm->gamma->red = malloc(drm->gamma->size*sizeof(uint16_t)*3);
if (!drm->gamma->size) {
fprintf(stderr, "drm->gamma->size = %u, not setting gamma.\n", drm->gamma->size);
}
else if (!drm->gamma->red) {
fprintf(stderr, "memory allocation error at %s:%d\n", __FILE__, __LINE__);
fprintf(stderr, "not setting gamma.\n");
}
else {
memset(drm->gamma->red, 0, drm->gamma->size*sizeof(uint16_t)*3);
drm->gamma->green = drm->gamma->red + drm->gamma->size;
drm->gamma->blue = drm->gamma->red + drm->gamma->size*2;
if (kmsvnc->screen_blank_restore) {
int step = 0x10000 / drm->gamma->size;
for (int i = 0; i < drm->gamma->size; i++) {
drm->gamma->red[i] = drm->gamma->green[i] = drm->gamma->blue[i] = step * i;
}
}
else {
// legacy api, but weston also uses this, so whatever
drmModeCrtcGetGamma(drm->drm_fd, drm->plane->crtc_id, drm->gamma->size, drm->gamma->red, drm->gamma->green, drm->gamma->blue);
}
if (kmsvnc->debug_enabled) {
for (int i = 0; i < drm->gamma->size; i++) {
fprintf(stderr, "gamma: %05d %05hu %05hu %05hu\n", i, drm->gamma->red[i], drm->gamma->green[i], drm->gamma->blue[i]);
}
}
uint16_t *new_gamma_red = malloc(drm->gamma->size*sizeof(uint16_t)*3);
if (!new_gamma_red) {
fprintf(stderr, "memory allocation error at %s:%d\n", __FILE__, __LINE__);
fprintf(stderr, "not setting gamma.\n");
}
else {
memset(new_gamma_red, 0, drm->gamma->size*sizeof(uint16_t)*3);
uint16_t *new_gamma_green = new_gamma_red + drm->gamma->size;
uint16_t *new_gamma_blue = new_gamma_red + drm->gamma->size*2;
if (drmModeCrtcSetGamma(drm->drm_master_fd ?: drm->drm_fd, drm->plane->crtc_id, drm->gamma->size, new_gamma_red, new_gamma_green, new_gamma_blue)) perror("Failed to set gamma");
}
if (new_gamma_red) {
free(new_gamma_red);
new_gamma_red = NULL;
}
}
}
else {
fprintf(stderr, "Did not get a crtc structure, not setting gamma.\n");
}
if (target_crtc) {
drmModeFreeCrtc(target_crtc);
target_crtc = NULL;
}
}
resolve github #8
2024-01-23 10:39:39 +08:00
#endif
allow screen blank for privacy
2023-08-11 00:25:26 +08:00
long way to go
2023-04-27 23:42:41 +08:00
drm->mfb = drmModeGetFB2(drm->drm_fd, drm->plane->fb_id);
if (!drm->mfb) {
vaapi: wip
2023-04-29 02:05:13 +08:00
KMSVNC_FATAL("Failed to get framebuffer %u: %s\n", drm->plane->fb_id, strerror(errno));
init
2023-04-27 19:35:18 +08:00
}
vaapi: wip
2023-04-29 02:05:13 +08:00
drm->pixfmt_name = drmGetFormatName(drm->mfb->pixel_format);
drm->mod_vendor = drmGetFormatModifierVendor(drm->mfb->modifier);
drm->mod_name = drmGetFormatModifierName(drm->mfb->modifier);
add wakeup option add LICENCE and update readme fix format
2023-04-30 16:32:31 +08:00
printf("Template framebuffer is %u: %ux%u fourcc:%u mod:%lu flags:%u\n", drm->mfb->fb_id, drm->mfb->width, drm->mfb->height, drm->mfb->pixel_format, drm->mfb->modifier, drm->mfb->flags);
long way to go
2023-04-27 23:42:41 +08:00
printf("handles %u %u %u %u\n", drm->mfb->handles[0], drm->mfb->handles[1], drm->mfb->handles[2], drm->mfb->handles[3]);
printf("offsets %u %u %u %u\n", drm->mfb->offsets[0], drm->mfb->offsets[1], drm->mfb->offsets[2], drm->mfb->offsets[3]);
printf("pitches %u %u %u %u\n", drm->mfb->pitches[0], drm->mfb->pitches[1], drm->mfb->pitches[2], drm->mfb->pitches[3]);
vaapi: wip
2023-04-29 02:05:13 +08:00
printf("format %s, modifier %s:%s\n", drm->pixfmt_name, drm->mod_vendor, drm->mod_name);
long way to go
2023-04-27 23:42:41 +08:00
if (!drm->mfb->handles[0])
init
2023-04-27 19:35:18 +08:00
{
vaapi: wip
2023-04-29 02:05:13 +08:00
KMSVNC_FATAL("No handle set on framebuffer: maybe you need some additional capabilities?\n");
init
2023-04-27 19:35:18 +08:00
}
drm->mmap_fd = drm->drm_fd;
drm->mmap_size = drm->mfb->width * drm->mfb->height * BYTES_PER_PIXEL;
drm->funcs = malloc(sizeof(struct kmsvnc_drm_funcs));
vaapi: wip
2023-04-29 02:05:13 +08:00
if (!drm->funcs) KMSVNC_FATAL("memory allocation error at %s:%d\n", __FILE__, __LINE__);
WIP: allow capture cursor
2023-07-16 01:34:58 +08:00
drm->funcs->convert = convert_bgra_to_rgba;
init
2023-04-27 19:35:18 +08:00
drm->funcs->sync_start = drm_sync_noop;
drm->funcs->sync_end = drm_sync_noop;
if (drm_vendors()) return 1;
return 0;
}
static int drm_kmsbuf_prime() {
struct kmsvnc_drm_data *drm = kmsvnc->drm;
long way to go
2023-04-27 23:42:41 +08:00
int err = drmPrimeHandleToFD(drm->drm_fd, drm->mfb->handles[0], O_RDWR, &drm->prime_fd);
init
2023-04-27 19:35:18 +08:00
if (err < 0 || drm->prime_fd < 0)
{
WIP: allow capture cursor
2023-07-16 01:34:58 +08:00
KMSVNC_FATAL("Failed to get PRIME fd from framebuffer handle\n");
init
2023-04-27 19:35:18 +08:00
}
drm->funcs->sync_start = &drm_sync_start;
drm->funcs->sync_end = &drm_sync_end;
drm->mmap_fd = drm->prime_fd;
return 0;
}
vaapi: wip
2023-04-29 02:05:13 +08:00
static int drm_kmsbuf_prime_vaapi() {
struct kmsvnc_drm_data *drm = kmsvnc->drm;
int err = drmPrimeHandleToFD(drm->drm_fd, drm->mfb->handles[0], O_RDWR, &drm->prime_fd);
if (err < 0 || drm->prime_fd < 0)
{
WIP: allow capture cursor
2023-07-16 01:34:58 +08:00
KMSVNC_FATAL("Failed to get PRIME fd from framebuffer handle\n");
vaapi: wip
2023-04-29 02:05:13 +08:00
}
if (va_init()) return 1;
drm->mmap_fd = drm->prime_fd;
vaapi fix
2023-04-29 15:17:06 +08:00
drm->skip_map = 1;
vaapi: wip
2023-04-29 02:05:13 +08:00
return 0;
}
init
2023-04-27 19:35:18 +08:00
static int drm_kmsbuf_dumb() {
struct kmsvnc_drm_data *drm = kmsvnc->drm;
struct drm_gem_flink flink;
long way to go
2023-04-27 23:42:41 +08:00
flink.handle = drm->mfb->handles[0];
init
2023-04-27 19:35:18 +08:00
DRM_IOCTL_MUST(drm->drm_fd, DRM_IOCTL_GEM_FLINK, &flink);
struct drm_gem_open open_arg;
open_arg.name = flink.name;
DRM_IOCTL_MUST(drm->drm_fd, DRM_IOCTL_GEM_OPEN, &open_arg);
struct drm_mode_map_dumb mreq;
memset(&mreq, 0, sizeof(mreq));
mreq.handle = open_arg.handle;
DRM_IOCTL_MUST(drm->drm_fd, DRM_IOCTL_MODE_MAP_DUMB, &mreq);
drm->mmap_size = open_arg.size;
drm->mmap_offset = mreq.offset;
return 0;
}
int drm_vendors() {
struct kmsvnc_drm_data *drm = kmsvnc->drm;
char *driver_name;
if (kmsvnc->force_driver) {
printf("using %s instead of %s\n", kmsvnc->force_driver, drm->drm_ver->name);
driver_name = kmsvnc->force_driver;
}
else {
driver_name = drm->drm_ver->name;
}
vaapi: wip
2023-04-29 02:05:13 +08:00
if (strcmp(driver_name, "i915") == 0 || strcmp(driver_name, "amdgpu") == 0)
init
2023-04-27 19:35:18 +08:00
{
vaapi: wip
2023-04-29 02:05:13 +08:00
if (fourcc_mod_is_vendor(drm->mfb->modifier, INTEL)) {
if (strstr(drm->mod_name, "CCS")) {
printf("warn: intel with CCS modifier detected, please set INTEL_DEBUG=noccs\n");
}
};
drm->funcs->convert = &convert_vaapi;
if (drm_kmsbuf_prime_vaapi()) return 1;
init
2023-04-27 19:35:18 +08:00
}
else if (strcmp(driver_name, "nvidia-drm") == 0)
{
support RGB32_10 pixfmt
2023-05-07 17:57:53 +08:00
if (check_pixfmt_non_vaapi()) return 1;
vaapi: wip
2023-04-29 02:05:13 +08:00
printf("warn: nvidia card detected. Currently only x-tiled framebuffer is supported. Performance may suffer.\n");
allow DRM_FORMAT_MOD_LINEAR on nvidia
2023-05-24 14:41:22 +08:00
if (drm->mfb->modifier != DRM_FORMAT_MOD_NONE && drm->mfb->modifier != DRM_FORMAT_MOD_LINEAR) {
drm->funcs->convert = &convert_nvidia_x_tiled_kmsbuf;
}
init
2023-04-27 19:35:18 +08:00
if (drm_kmsbuf_dumb()) return 1;
}
else if (strcmp(driver_name, "vmwgfx") == 0 ||
strcmp(driver_name, "vboxvideo") == 0 ||
strcmp(driver_name, "virtio_gpu") == 0
)
{
support RGB32_10 pixfmt
2023-05-07 17:57:53 +08:00
if (check_pixfmt_non_vaapi()) return 1;
vaapi: wip
2023-04-29 02:05:13 +08:00
if (drm->mfb->modifier != DRM_FORMAT_MOD_NONE && drm->mfb->modifier != DRM_FORMAT_MOD_LINEAR) {
printf("warn: modifier is not LINEAR, please create an issue with your modifier.\n");
}
init
2023-04-27 19:35:18 +08:00
// virgl does not work
if (drm_kmsbuf_dumb()) return 1;
}
else if (strcmp(driver_name, "test-prime") == 0)
{
support RGB32_10 pixfmt
2023-05-07 17:57:53 +08:00
if (check_pixfmt_non_vaapi()) return 1;
init
2023-04-27 19:35:18 +08:00
if (drm_kmsbuf_prime()) return 1;
}
else if (strcmp(driver_name, "test-map-dumb") == 0)
{
support RGB32_10 pixfmt
2023-05-07 17:57:53 +08:00
if (check_pixfmt_non_vaapi()) return 1;
init
2023-04-27 19:35:18 +08:00
if (drm_kmsbuf_dumb()) return 1;
}
add alternative mmap method for i915
2023-04-27 19:51:16 +08:00
else if (strcmp(driver_name, "test-i915-gem") == 0)
{
support RGB32_10 pixfmt
2023-05-07 17:57:53 +08:00
if (check_pixfmt_non_vaapi()) return 1;
add alternative mmap method for i915
2023-04-27 19:51:16 +08:00
struct drm_gem_flink flink;
long way to go
2023-04-27 23:42:41 +08:00
flink.handle = drm->mfb->handles[0];
add alternative mmap method for i915
2023-04-27 19:51:16 +08:00
DRM_IOCTL_MUST(drm->drm_fd, DRM_IOCTL_GEM_FLINK, &flink);
struct drm_gem_open open_arg;
open_arg.name = flink.name;
DRM_IOCTL_MUST(drm->drm_fd, DRM_IOCTL_GEM_OPEN, &open_arg);
struct drm_i915_gem_mmap_gtt mmap_arg;
mmap_arg.handle = open_arg.handle;
DRM_IOCTL_MUST(drm->drm_fd, DRM_IOCTL_I915_GEM_MMAP_GTT, &mmap_arg);
drm->mmap_size = open_arg.size;
drm->mmap_offset = mmap_arg.offset;
}
vaapi: wip
2023-04-29 02:05:13 +08:00
else if (strcmp(driver_name, "test-i915-prime-xtiled") == 0)
{
support RGB32_10 pixfmt
2023-05-07 17:57:53 +08:00
if (check_pixfmt_non_vaapi()) return 1;
vaapi: wip
2023-04-29 02:05:13 +08:00
drm->funcs->convert = &convert_intel_x_tiled_kmsbuf;
if (drm_kmsbuf_prime()) return 1;
}
init
2023-04-27 19:35:18 +08:00
else
{
support RGB32_10 pixfmt
2023-05-07 17:57:53 +08:00
if (check_pixfmt_non_vaapi()) return 1;
init
2023-04-27 19:35:18 +08:00
fprintf(stderr, "Untested drm driver, use at your own risk!\n");
vaapi: wip
2023-04-29 02:05:13 +08:00
if (drm->mfb->modifier != DRM_FORMAT_MOD_NONE && drm->mfb->modifier != DRM_FORMAT_MOD_LINEAR) {
printf("warn: modifier is not LINEAR, please create an issue with your driver and modifier.\n");
}
init
2023-04-27 19:35:18 +08:00
if (drm_kmsbuf_dumb()) return 1;
}
vaapi fix
2023-04-29 15:17:06 +08:00
if (!drm->skip_map && !drm->mapped)
init
2023-04-27 19:35:18 +08:00
{
add wakeup option add LICENCE and update readme fix format
2023-04-30 16:32:31 +08:00
printf("mapping with size = %lu, offset = %ld, fd = %d\n", drm->mmap_size, drm->mmap_offset, drm->mmap_fd);
init
2023-04-27 19:35:18 +08:00
drm->mapped = mmap(NULL, drm->mmap_size, PROT_READ, MAP_SHARED, drm->mmap_fd, drm->mmap_offset);
if (drm->mapped == MAP_FAILED)
{
vaapi: wip
2023-04-29 02:05:13 +08:00
KMSVNC_FATAL("Failed to mmap: %s\n", strerror(errno));
init
2023-04-27 19:35:18 +08:00
}
}
return 0;
}
Reference in a new issue Copy permalink