vo: add `int flags` to the get_image signature

This is a huge disgusting mess to thread through everywhere. Maybe I'm
stupid for attempting to solve the problem this way.

video/decode/vd_lavc.c

@@ -985,7 +985,7 @@ static int get_buffer2_direct(AVCodecContext *avctx, AVFrame *pic, int flags)
     struct mp_image *img = mp_image_pool_get_no_alloc(p->dr_pool, imgfmt, w, h);
     if (!img) {
         MP_DBG(p, "Allocating new DR image...\n");
-        img = vo_get_image(p->vo, imgfmt, w, h, stride_align);
+        img = vo_get_image(p->vo, imgfmt, w, h, stride_align, 0);
         if (!img) {
             MP_DBG(p, "...failed..\n");
             goto fallback;

video/out/dr_helper.c

@@ -20,7 +20,7 @@ struct dr_helper {
     atomic_ullong dr_in_flight;
 
     struct mp_image *(*get_image)(void *ctx, int imgfmt, int w, int h,
-                                  int stride_align);
+                                  int stride_align, int flags);
     void *get_image_ctx;
 };
 
@@ -37,7 +37,7 @@ static void dr_helper_destroy(void *ptr)
 
 struct dr_helper *dr_helper_create(struct mp_dispatch_queue *dispatch,
             struct mp_image *(*get_image)(void *ctx, int imgfmt, int w, int h,
-                                          int stride_align),
+                                          int stride_align, int flags),
             void *get_image_ctx)
 {
     struct dr_helper *dr = talloc_ptrtype(NULL, dr);
@@ -108,7 +108,7 @@ static void free_dr_buffer_on_dr_thread(void *opaque, uint8_t *data)
 
 struct get_image_cmd {
     struct dr_helper *dr;
-    int imgfmt, w, h, stride_align;
+    int imgfmt, w, h, stride_align, flags;
     struct mp_image *res;
 };
 
@@ -118,7 +118,7 @@ static void sync_get_image(void *ptr)
     struct dr_helper *dr = cmd->dr;
 
     cmd->res = dr->get_image(dr->get_image_ctx, cmd->imgfmt, cmd->w, cmd->h,
-                             cmd->stride_align);
+                             cmd->stride_align, cmd->flags);
     if (!cmd->res)
         return;
 
@@ -148,11 +148,14 @@ static void sync_get_image(void *ptr)
 }
 
 struct mp_image *dr_helper_get_image(struct dr_helper *dr, int imgfmt,
-                                     int w, int h, int stride_align)
+                                     int w, int h, int stride_align, int flags)
 {
     struct get_image_cmd cmd = {
         .dr = dr,
-        .imgfmt = imgfmt, .w = w, .h = h, .stride_align = stride_align,
+        .imgfmt = imgfmt,
+        .w = w, .h = h,
+        .stride_align = stride_align,
+        .flags = flags,
     };
     mp_dispatch_run(dr->dispatch, sync_get_image, &cmd);
     return cmd.res;

video/out/dr_helper.h

@@ -15,7 +15,7 @@ struct mp_dispatch_queue;
 //       dr_helper instance can be destroyed.
 struct dr_helper *dr_helper_create(struct mp_dispatch_queue *dispatch,
             struct mp_image *(*get_image)(void *ctx, int imgfmt, int w, int h,
-                                          int stride_align),
+                                          int stride_align, int flags),
             void *get_image_ctx);
 
 // Make DR release calls (freeing images) reentrant if they are called on this
@@ -34,4 +34,4 @@ void dr_helper_release_thread(struct dr_helper *dr);
 // allocate a DR'ed image on the render thread (at least not in a way which
 // actually works if you want foreign threads to be able to free them).
 struct mp_image *dr_helper_get_image(struct dr_helper *dr, int imgfmt,
-                                     int w, int h, int stride_align);
+                                     int w, int h, int stride_align, int flags);

video/out/gpu/libmpv_gpu.c

@@ -192,11 +192,11 @@ static int render(struct render_backend *ctx, mpv_render_param *params,
 }
 
 static struct mp_image *get_image(struct render_backend *ctx, int imgfmt,
-                                  int w, int h, int stride_align)
+                                  int w, int h, int stride_align, int flags)
 {
     struct priv *p = ctx->priv;
 
-    return gl_video_get_image(p->renderer, imgfmt, w, h, stride_align);
+    return gl_video_get_image(p->renderer, imgfmt, w, h, stride_align, flags);
 }
 
 static void screenshot(struct render_backend *ctx, struct vo_frame *frame,

video/out/gpu/video.c

@@ -4288,7 +4288,7 @@ static void gl_video_dr_free_buffer(void *opaque, uint8_t *data)
 }
 
 struct mp_image *gl_video_get_image(struct gl_video *p, int imgfmt, int w, int h,
-                                    int stride_align)
+                                    int stride_align, int flags)
 {
     if (!gl_video_check_format(p, imgfmt))
         return NULL;

video/out/gpu/video.h

@@ -229,7 +229,7 @@ struct vo;
 void gl_video_configure_queue(struct gl_video *p, struct vo *vo);
 
 struct mp_image *gl_video_get_image(struct gl_video *p, int imgfmt, int w, int h,
-                                    int stride_align);
+                                    int stride_align, int flags);
 
 
 #endif

video/out/libmpv.h

@@ -58,7 +58,7 @@ struct render_backend_fns {
                      struct voctrl_performance_data *out);
     // Like vo_driver.get_image().
     struct mp_image *(*get_image)(struct render_backend *ctx, int imgfmt,
-                                  int w, int h, int stride_align);
+                                  int w, int h, int stride_align, int flags);
     // This has two purposes: 1. set queue attributes on VO, 2. update the
     // renderer's OSD pointer. Keep in mind that as soon as the caller releases
     // the renderer lock, the VO pointer can become invalid. The OSD pointer

video/out/vo.c

@@ -1067,10 +1067,10 @@ static void do_redraw(struct vo *vo)
 }
 
 static struct mp_image *get_image_vo(void *ctx, int imgfmt, int w, int h,
-                                     int stride_align)
+                                     int stride_align, int flags)
 {
     struct vo *vo = ctx;
-    return vo->driver->get_image(vo, imgfmt, w, h, stride_align);
+    return vo->driver->get_image(vo, imgfmt, w, h, stride_align, flags);
 }
 
 static void *vo_thread(void *ptr)
@@ -1401,12 +1401,12 @@ struct vo_frame *vo_get_current_vo_frame(struct vo *vo)
 }
 
 struct mp_image *vo_get_image(struct vo *vo, int imgfmt, int w, int h,
-                              int stride_align)
+                              int stride_align, int flags)
 {
     if (vo->driver->get_image_ts)
-        return vo->driver->get_image_ts(vo, imgfmt, w, h, stride_align);
+        return vo->driver->get_image_ts(vo, imgfmt, w, h, stride_align, flags);
     if (vo->in->dr_helper)
-        return dr_helper_get_image(vo->in->dr_helper, imgfmt, w, h, stride_align);
+        return dr_helper_get_image(vo->in->dr_helper, imgfmt, w, h, stride_align, flags);
     return NULL;
 }
 

video/out/vo.h

@@ -359,6 +359,8 @@ struct vo_driver {
      * stride_align is always a value >=1 that is a power of 2. The stride
      * values of the returned image must be divisible by this value.
      *
+     * flags is a combination of VO_DR_FLAG_* flags.
+     *
      * Currently, the returned image must have exactly 1 AVBufferRef set, for
      * internal implementation simplicity.
      *
@@ -366,7 +368,7 @@ struct vo_driver {
      * will silently fallback to a default allocator
      */
     struct mp_image *(*get_image)(struct vo *vo, int imgfmt, int w, int h,
-                                  int stride_align);
+                                  int stride_align, int flags);
 
     /*
      * Thread-safe variant of get_image. Set at most one of these callbacks.
@@ -374,7 +376,7 @@ struct vo_driver {
      * vo_driver.uninit is not called before this function returns.
      */
     struct mp_image *(*get_image_ts)(struct vo *vo, int imgfmt, int w, int h,
-                                     int stride_align);
+                                     int stride_align, int flags);
 
     /*
      * Render the given frame to the VO's backbuffer. This operation will be
@@ -527,7 +529,7 @@ double vo_get_delay(struct vo *vo);
 void vo_discard_timing_info(struct vo *vo);
 struct vo_frame *vo_get_current_vo_frame(struct vo *vo);
 struct mp_image *vo_get_image(struct vo *vo, int imgfmt, int w, int h,
-                              int stride_align);
+                              int stride_align, int flags);
 
 void vo_wakeup(struct vo *vo);
 void vo_wait_default(struct vo *vo, int64_t until_time);

video/out/vo_gpu.c

@@ -265,11 +265,11 @@ static void wait_events(struct vo *vo, int64_t until_time_us)
 }
 
 static struct mp_image *get_image(struct vo *vo, int imgfmt, int w, int h,
-                                  int stride_align)
+                                  int stride_align, int flags)
 {
     struct gpu_priv *p = vo->priv;
 
-    return gl_video_get_image(p->renderer, imgfmt, w, h, stride_align);
+    return gl_video_get_image(p->renderer, imgfmt, w, h, stride_align, flags);
 }
 
 static void uninit(struct vo *vo)

video/out/vo_gpu_next.c

@@ -189,7 +189,7 @@ static void free_dr_buf(void *opaque, uint8_t *data)
 }
 
 static struct mp_image *get_image(struct vo *vo, int imgfmt, int w, int h,
-                                  int stride_align)
+                                  int stride_align, int flags)
 {
     struct priv *p = vo->priv;
     pl_gpu gpu = p->gpu;

video/out/vo_libmpv.c

@@ -152,11 +152,11 @@ static void dispatch_wakeup(void *ptr)
 }
 
 static struct mp_image *render_get_image(void *ptr, int imgfmt, int w, int h,
-                                         int stride_align)
+                                         int stride_align, int flags)
 {
     struct mpv_render_context *ctx = ptr;
 
-    return ctx->renderer->fns->get_image(ctx->renderer, imgfmt, w, h, stride_align);
+    return ctx->renderer->fns->get_image(ctx->renderer, imgfmt, w, h, stride_align, flags);
 }
 
 int mpv_render_context_create(mpv_render_context **res, mpv_handle *mpv,
@@ -654,13 +654,13 @@ static int control(struct vo *vo, uint32_t request, void *data)
 }
 
 static struct mp_image *get_image(struct vo *vo, int imgfmt, int w, int h,
-                                  int stride_align)
+                                  int stride_align, int flags)
 {
     struct vo_priv *p = vo->priv;
     struct mpv_render_context *ctx = p->ctx;
 
     if (ctx->dr)
-        return dr_helper_get_image(ctx->dr, imgfmt, w, h, stride_align);
+        return dr_helper_get_image(ctx->dr, imgfmt, w, h, stride_align, flags);
 
     return NULL;
 }