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OpenGL: added keys for screenshot and pause

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This commit is contained in:
Martin Pulec
2013-04-05 09:44:20 +02:00
parent 1e8db83068
commit e4e577063a
3 changed files with 76 additions and 0 deletions
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23
src/video_codec.c
View File

@@ -909,6 +909,29 @@ static void vc_copylineToUYVY(unsigned char *dst, const unsigned char *src, int
}
}
/**
* Converts UYVY to RGB
* Uses Rec. 709 with standard SDI ceiling and floor
* @todo make it faster if needed
*/
void vc_copylineUYVYtoRGB(unsigned char *dst, const unsigned char *src, int dst_len) {
while(dst_len > 0) {
register int y1, y2, u ,v;
u = *src++;
y1 = *src++;
v = *src++;
y2 = *src++;
*dst++ = min(max(1.164*(y1 - 16) + 1.793*(v - 128), 0), 255);
*dst++ = min(max(1.164*(y1 - 16) - 0.534*(v - 128) - 0.213*(u - 128), 0), 255);
*dst++ = min(max(1.164*(y1 - 16) + 2.115*(u - 128), 0), 255);
*dst++ = min(max(1.164*(y2 - 16) + 1.793*(v - 128), 0), 255);
*dst++ = min(max(1.164*(y2 - 16) - 0.534*(v - 128) - 0.213*(u - 128), 0), 255);
*dst++ = min(max(1.164*(y2 - 16) + 2.115*(u - 128), 0), 255);
dst_len -= 6;
}
}
/**
* Converts RGB to UYVY.
* Uses full scale Rec. 601 YUV (aka JPEG)

1
src/video_codec.h
View File

@@ -114,6 +114,7 @@ void vc_copylineABGRtoRGB(unsigned char *dst, const unsigned char *src, int len)
void vc_copylineRGBAtoRGBwithShift(unsigned char *dst, const unsigned char *src, int len, int rshift, int gshift, int bshift);
void vc_copylineRGBtoRGBA(unsigned char *dst, const unsigned char *src, int len, int rshift, int gshift, int bshift);
void vc_copylineRGBtoUYVY(unsigned char *dst, const unsigned char *src, int len);
void vc_copylineUYVYtoRGB(unsigned char *dst, const unsigned char *src, int len);
void vc_copylineBGRtoUYVY(unsigned char *dst, const unsigned char *src, int len);
void vc_copylineRGBAtoUYVY(unsigned char *dst, const unsigned char *src, int len);
void vc_copylineBGRtoRGB(unsigned char *dst, const unsigned char *src, int len);

52
src/video_display/gl.c
View File

@@ -209,6 +209,7 @@ struct state_gl {
struct timeval tv;
bool sync_on_vblank;
bool paused;
};
static struct state_gl *gl;
@@ -230,6 +231,7 @@ static void glut_key_callback(unsigned char key, int x, int y);
static void glut_close_callback(void);
static void glut_resize_window(struct state_gl *s);
static void display_gl_enable_sync_on_vblank(void);
static void screenshot(struct state_gl *s);
#ifdef HAVE_MACOSX
void NSApplicationLoad(void);
@@ -304,6 +306,7 @@ void * display_gl_init(char *fmt, unsigned int flags) {
pthread_mutex_init(&s->lock, NULL);
pthread_cond_init(&s->reconf_cv, NULL);
s->paused = false;
s->fs = FALSE;
s->deinterlace = FALSE;
s->video_aspect = 0.0;
@@ -640,6 +643,45 @@ static void display_gl_enable_sync_on_vblank() {
#endif
}
static void screenshot(struct state_gl *s)
{
unsigned char *data = NULL, *tmp = NULL;
int len = s->tile->width * s->tile->height * 3;
if (s->frame->color_spec == RGB) {
data = (unsigned char *) s->buffers[s->image_display];
} else {
data = tmp = (unsigned char *) malloc(len);
if (s->frame->color_spec == UYVY) {
vc_copylineUYVYtoRGB(data, (const unsigned char *)
s->buffers[s->image_display], len);
} else if (s->frame->color_spec == RGBA) {
vc_copylineRGBAtoRGB(data, (const unsigned char *)
s->buffers[s->image_display], len);
}
}
if(!data) {
return;
}
char name[128];
time_t t;
struct tm time_tmp;
t = time(NULL);
localtime_r(&t, &time_tmp);
strftime(name, sizeof(name), "screenshot-%a, %d %b %Y %T %z.pnm",
&time_tmp);
FILE *out = fopen(name, "w");
if(out) {
fprintf(out, "P6\n%d %d\n255\n", s->tile->width, s->tile->height);
fwrite(data, 1, len, out);
fclose(out);
}
free(tmp);
}
/**
* This function must be called only from GL thread
* (display_thread_gl) !!!
@@ -775,6 +817,9 @@ static void glut_idle_callback(void)
gl_check_error();
if(s->paused)
goto processed;
switch(s->frame->color_spec) {
case DXT1:
glCompressedTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0,
@@ -832,6 +877,7 @@ static void glut_idle_callback(void)
gl_draw(s->aspect);
glutPostRedisplay();
processed:
pthread_mutex_lock(&s->lock);
pthread_cond_signal(&s->processed_cv);
s->processed = TRUE;
@@ -864,6 +910,12 @@ static void glut_key_callback(unsigned char key, int x, int y)
gl->deinterlace = gl->deinterlace ? FALSE : TRUE;
printf("Deinterlacing: %s\n", gl->deinterlace ? "ON" : "OFF");
break;
case ' ':
gl->paused = !gl->paused;
break;
case 's':
screenshot(gl);
break;
}
}