From 9ba0831411aae044a737d7aeac30edbd12be6521 Mon Sep 17 00:00:00 2001 From: kub Date: Thu, 2 Jul 2020 09:34:11 +0200 Subject: [PATCH] add 2x overlay for SDL to improve color resolution --- plat_sdl.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/plat_sdl.c b/plat_sdl.c index bbb466e..9b78d05 100644 --- a/plat_sdl.c +++ b/plat_sdl.c @@ -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; -- 2.39.2