Jerry/kmsvnc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

fix wrong byte order in bypass routine

Browse source
This commit is contained in:
JerryXiao 2023-09-21 23:49:02 +08:00
parent 4ba2de050e
commit 0d40834b17
Signed by: Jerry
GPG key ID: 22618F758B5BE2E5
2 changed files with 27 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

38
drm.c
View file

@ -27,12 +27,16 @@ static int check_pixfmt_non_vaapi() {
static void convert_copy(const char *in, int width, int height, char *buff)
{
if (likely(in != buff)) {
memcpy(buff, in, width * height * BYTES_PER_PIXEL);
}
}
static void convert_bgra_to_rgba(const char *in, int width, int height, char *buff)
{
if (likely(in != buff)) {
memcpy(buff, in, width * height * BYTES_PER_PIXEL);
}
for (int i = 0; i < width * height * BYTES_PER_PIXEL; i += BYTES_PER_PIXEL) {
uint32_t pixdata = htonl(*((uint32_t*)(buff + i)));
buff[i+0] = (pixdata & 0x0000ff00) >> 8;
@ -97,30 +101,36 @@ void convert_intel_x_tiled_kmsbuf(const char *in, int width, int height, char *b
}
static void convert_vaapi(const char *in, int width, int height, char *buff) {
if (
(!kmsvnc->va->selected_fmt->byte_order && (KMSVNC_FOURCC_TO_INT('R','G','B',0) & kmsvnc->va->selected_fmt->fourcc) == KMSVNC_FOURCC_TO_INT('R','G','B',0)) ||
(kmsvnc->va->selected_fmt->byte_order && (KMSVNC_FOURCC_TO_INT(0,'B','G','R') & kmsvnc->va->selected_fmt->fourcc) == KMSVNC_FOURCC_TO_INT(0,'B','G','R'))
) {
va_hwframe_to_vaapi(buff);
if (
!kmsvnc->va->selected_fmt->byte_order &&
(KMSVNC_FOURCC_TO_INT('R','G','B',0) & kmsvnc->va->selected_fmt->fourcc) == KMSVNC_FOURCC_TO_INT('R','G','B',0)
) {}
else if (
kmsvnc->va->selected_fmt->byte_order &&
(KMSVNC_FOURCC_TO_INT(0,'B','G','R') & kmsvnc->va->selected_fmt->fourcc) == KMSVNC_FOURCC_TO_INT(0,'B','G','R')
) {
for (int i = 0; i < width * height * BYTES_PER_PIXEL; i += BYTES_PER_PIXEL) {
uint32_t *pixdata = (uint32_t*)(buff + i);
*pixdata = __builtin_bswap32(*pixdata);
}
}
else {
if (convert_buf_allocate(width * height * BYTES_PER_PIXEL)) return;
va_hwframe_to_vaapi(kmsvnc->drm->kms_convert_buf);
// is 30 depth?
if (kmsvnc->va->selected_fmt->depth == 30) {
for (int i = 0; i < width * height * BYTES_PER_PIXEL; i += BYTES_PER_PIXEL) {
// ensure little endianess
uint32_t pixdata = __builtin_bswap32(htonl(*((uint32_t*)(kmsvnc->drm->kms_convert_buf + i))));
kmsvnc->drm->kms_convert_buf[i] = (pixdata & 0x3ff00000) >> 20 >> 2;
kmsvnc->drm->kms_convert_buf[i+1] = (pixdata & 0xffc00) >> 10 >> 2;
kmsvnc->drm->kms_convert_buf[i+2] = (pixdata & 0x3ff) >> 2;
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;
}
}
else {
// handle ihd and mesa byte order quirk
if (kmsvnc->va->selected_fmt->byte_order) {
for (int i = 0; i < width * height * BYTES_PER_PIXEL; i += BYTES_PER_PIXEL) {
uint32_t *pixdata = (uint32_t*)(kmsvnc->drm->kms_convert_buf + i);
uint32_t *pixdata = (uint32_t*)(buff + i);
*pixdata = __builtin_bswap32(*pixdata);
}
}
@ -128,20 +138,18 @@ static void convert_vaapi(const char *in, int width, int height, char *buff) {
// is xrgb?
if ((kmsvnc->va->selected_fmt->blue_mask | kmsvnc->va->selected_fmt->red_mask) < 0x1000000) {
for (int i = 0; i < width * height * BYTES_PER_PIXEL; i += BYTES_PER_PIXEL) {
uint32_t *pixdata = (uint32_t*)(kmsvnc->drm->kms_convert_buf + i);
uint32_t *pixdata = (uint32_t*)(buff + i);
*pixdata = ntohl(htonl(*pixdata) << 8);
}
}
// is bgrx?
if (kmsvnc->va->selected_fmt->blue_mask > kmsvnc->va->selected_fmt->red_mask) {
for (int i = 0; i < width * height * BYTES_PER_PIXEL; i += BYTES_PER_PIXEL) {
uint32_t pixdata = htonl(*((uint32_t*)(kmsvnc->drm->kms_convert_buf + i)));
uint32_t pixdata = htonl(*((uint32_t*)(buff + i)));
buff[i+0] = (pixdata & 0x0000ff00) >> 8;
buff[i+2] = (pixdata & 0xff000000) >> 24;
}
}
// rgbx now
memcpy(buff, kmsvnc->drm->kms_convert_buf, width * height * BYTES_PER_PIXEL);
}
}

3
kmsvnc.h
View file

@ -147,3 +147,6 @@ struct kmsvnc_va_data
#define KMSVNC_WRITE_MAY(fd,buf,count) do { ssize_t e = write((fd), (buf), (count)); if (e != (count)) fprintf(stderr, "should write %ld bytes, actually wrote %ld, on line %d\n", (count), e, __LINE__); } while (0)
#define KMSVNC_DEBUG(...) do{ if (kmsvnc->debug_enabled) fprintf(stdout, __VA_ARGS__); } while(0)
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)