1 files changed, 132 insertions, 0 deletions
diff --git a/third_party/dav1d/examples/dp_renderer.h b/third_party/dav1d/examples/dp_renderer.h
new file mode 100644
index 0000000000..4c6f2954f7
--- /dev/null
+++ b/third_party/dav1d/examples/dp_renderer.h
@@ -0,0 +1,132 @@
+/*
+ * Copyright © 2020, VideoLAN and dav1d authors
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <inttypes.h>
+#include <string.h>
+
+#include "dav1d/dav1d.h"
+
+#include <SDL.h>
+#ifdef HAVE_PLACEBO
+# include <libplacebo/config.h>
+#endif
+
+// Check libplacebo Vulkan rendering
+#if defined(HAVE_VULKAN) && defined(SDL_VIDEO_VULKAN)
+# if defined(PL_HAVE_VULKAN) && PL_HAVE_VULKAN
+#  define HAVE_RENDERER_PLACEBO
+#  define HAVE_PLACEBO_VULKAN
+# endif
+#endif
+
+// Check libplacebo OpenGL rendering
+#if defined(PL_HAVE_OPENGL) && PL_HAVE_OPENGL
+# define HAVE_RENDERER_PLACEBO
+# define HAVE_PLACEBO_OPENGL
+#endif
+
+/**
+ * Settings structure
+ * Hold all settings available for the player,
+ * this is usually filled by parsing arguments
+ * from the console.
+ */
+typedef struct {
+    const char *inputfile;
+    const char *renderer_name;
+    int highquality;
+    int untimed;
+    int zerocopy;
+    int gpugrain;
+} Dav1dPlaySettings;
+
+#define WINDOW_WIDTH  910
+#define WINDOW_HEIGHT 512
+
+#define DAV1D_EVENT_NEW_FRAME 1
+#define DAV1D_EVENT_DEC_QUIT  2
+
+/**
+ * Renderer info
+ */
+typedef struct rdr_info
+{
+    // Renderer name
+    const char *name;
+    // Cookie passed to the renderer implementation callbacks
+    void *cookie;
+    // Callback to create the renderer
+    void* (*create_renderer)();
+    // Callback to destroy the renderer
+    void (*destroy_renderer)(void *cookie);
+    // Callback to the render function that renders a prevously sent frame
+    void (*render)(void *cookie, const Dav1dPlaySettings *settings);
+    // Callback to the send frame function
+    int (*update_frame)(void *cookie, Dav1dPicture *dav1d_pic,
+                        const Dav1dPlaySettings *settings);
+    // Callback for alloc/release pictures (optional)
+    int (*alloc_pic)(Dav1dPicture *pic, void *cookie);
+    void (*release_pic)(Dav1dPicture *pic, void *cookie);
+    // Whether or not this renderer can apply on-GPU film grain synthesis
+    int supports_gpu_grain;
+} Dav1dPlayRenderInfo;
+
+extern const Dav1dPlayRenderInfo rdr_placebo_vk;
+extern const Dav1dPlayRenderInfo rdr_placebo_gl;
+extern const Dav1dPlayRenderInfo rdr_sdl;
+
+// Available renderes ordered by priority
+static const Dav1dPlayRenderInfo* const dp_renderers[] = {
+    &rdr_placebo_vk,
+    &rdr_placebo_gl,
+    &rdr_sdl,
+};
+
+static inline const Dav1dPlayRenderInfo *dp_get_renderer(const char *name)
+{
+    for (size_t i = 0; i < (sizeof(dp_renderers)/sizeof(*dp_renderers)); ++i)
+    {
+        if (dp_renderers[i]->name == NULL)
+            continue;
+
+        if (name == NULL || strcmp(name, dp_renderers[i]->name) == 0) {
+            return dp_renderers[i];
+        }
+    }
+    return NULL;
+}
+
+static inline SDL_Window *dp_create_sdl_window(int window_flags)
+{
+    SDL_Window *win;
+    window_flags |= SDL_WINDOW_SHOWN | SDL_WINDOW_ALLOW_HIGHDPI;
+
+    win = SDL_CreateWindow("Dav1dPlay", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
+        WINDOW_WIDTH, WINDOW_HEIGHT, window_flags);
+    SDL_SetWindowResizable(win, SDL_TRUE);
+
+    return win;
+}