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[host] linux: implement new truncated frame support

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This commit is contained in:
Geoffrey McRae 2021-06-12 19:10:32 +10:00
parent 9f25f7fced
commit 2160dee23a
1 changed files with 15 additions and 17 deletions
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22
host/platform/Linux/capture/XCB/src/xcb.c
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@ -54,7 +54,6 @@ struct xcb * this = NULL;
// forwards
static bool xcb_deinit();
static unsigned int xcb_getMaxFrameSize();
// implementation
@ -109,7 +108,8 @@ static bool xcb_init(void)
DEBUG_INFO("Frame Size : %u x %u", this->width, this->height);
this->seg = xcb_generate_id(this->xcb);
this->shmID = shmget(IPC_PRIVATE, xcb_getMaxFrameSize(), IPC_CREAT | 0777);
const size_t maxFrameSize = this->width * this->height * 4;
this->shmID = shmget(IPC_PRIVATE, maxFrameSize, IPC_CREAT | 0777);
if (this->shmID == -1)
{
DEBUG_ERROR("shmget failed");
@ -165,11 +165,6 @@ static void xcb_free(void)
this = NULL;
}
static unsigned int xcb_getMaxFrameSize(void)
{
return this->width * this->height * 4;
}
static unsigned int xcb_getMouseScale(void)
{
return 100;
@ -200,12 +195,16 @@ static CaptureResult xcb_capture(void)
return CAPTURE_RESULT_OK;
}
static CaptureResult xcb_waitFrame(CaptureFrame * frame)
static CaptureResult xcb_waitFrame(CaptureFrame * frame,
const size_t maxFrameSize)
{
lgWaitEvent(this->frameEvent, TIMEOUT_INFINITE);
const unsigned int maxHeight = maxFrameSize / (this->width * 4);
frame->width = this->width;
frame->height = this->height;
frame->height = maxHeight > this->height ? this->height : maxHeight;
frame->realHeight = this->height;
frame->pitch = this->width * 4;
frame->stride = this->width;
frame->format = CAPTURE_FMT_BGRA;
@ -214,7 +213,7 @@ static CaptureResult xcb_waitFrame(CaptureFrame * frame)
return CAPTURE_RESULT_OK;
}
static CaptureResult xcb_getFrame(FrameBuffer * frame)
static CaptureResult xcb_getFrame(FrameBuffer * frame, const unsigned int height)
{
assert(this);
assert(this->initialized);
@ -227,7 +226,7 @@ static CaptureResult xcb_getFrame(FrameBuffer * frame)
return CAPTURE_RESULT_ERROR;
}
framebuffer_write(frame, this->data, this->width * this->height * 4);
framebuffer_write(frame, this->data, this->width * height * 4);
free(img);
this->hasFrame = false;
@ -242,7 +241,6 @@ struct CaptureInterface Capture_XCB =
.init = xcb_init,
.deinit = xcb_deinit,
.free = xcb_free,
.getMaxFrameSize = xcb_getMaxFrameSize,
.getMouseScale = xcb_getMouseScale,
.capture = xcb_capture,
.waitFrame = xcb_waitFrame,