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add 2x overlay for SDL to improve color resolution

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This commit is contained in:
kub 2020-07-02 09:34:11 +02:00
parent a7a40556a9
commit 9ba0831411
1 changed files with 11 additions and 4 deletions
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15
plat_sdl.c
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@ -31,7 +31,7 @@ static char vid_drv_name[32];
static int window_w, window_h;
static int fs_w, fs_h;
static int old_fullscreen;
static int vout_mode_overlay = -1, vout_mode_gl = -1;
static int vout_mode_overlay = -1, vout_mode_overlay2x = -1, vout_mode_gl = -1;
static void *display, *window;
static int gl_quirks;
@ -52,6 +52,7 @@ int plat_sdl_change_video_mode(int w, int h, int force)
// invalid method might come from config..
if (plat_target.vout_method != 0
&& plat_target.vout_method != vout_mode_overlay
&& plat_target.vout_method != vout_mode_overlay2x
&& plat_target.vout_method != vout_mode_gl)
{
fprintf(stderr, "invalid vout_method: %d\n", plat_target.vout_method);
@ -96,8 +97,10 @@ int plat_sdl_change_video_mode(int w, int h, int force)
}
}
if (plat_target.vout_method == vout_mode_overlay) {
plat_sdl_overlay = SDL_CreateYUVOverlay(w, h, SDL_UYVY_OVERLAY, plat_sdl_screen);
if (plat_target.vout_method == vout_mode_overlay
|| plat_target.vout_method == vout_mode_overlay2x) {
int W = plat_target.vout_method == vout_mode_overlay2x && w == 320 ? 2*w : w;
plat_sdl_overlay = SDL_CreateYUVOverlay(W, h, SDL_UYVY_OVERLAY, plat_sdl_screen);
if (plat_sdl_overlay != NULL) {
if ((long)plat_sdl_overlay->pixels[0] & 3)
fprintf(stderr, "warning: overlay pointer is unaligned\n");
@ -176,7 +179,7 @@ void plat_sdl_event_handler(void *event_)
int plat_sdl_init(void)
{
static const char *vout_list[] = { NULL, NULL, NULL, NULL };
static const char *vout_list[] = { NULL, NULL, NULL, NULL, NULL };
const SDL_VideoInfo *info;
SDL_SysWMinfo wminfo;
int overlay_works = 0;
@ -277,6 +280,10 @@ int plat_sdl_init(void)
if (overlay_works) {
plat_target.vout_method = vout_mode_overlay = i;
vout_list[i++] = "Video Overlay";
#ifdef SDL_OVERLAY_2X
vout_mode_overlay2x = i;
vout_list[i++] = "Video Overlay 2x";
#endif
}
if (gl_works) {
plat_target.vout_method = vout_mode_gl = i;