1 files changed, 273 insertions, 1 deletions

diff --git a/video/out/gl_common.c b/video/out/gl_common.c
index b72f9ae0d2..c416f20900 100644
--- a/video/out/gl_common.c
+++ b/video/out/gl_common.c
@@ -1302,6 +1302,259 @@ static void swapGlBuffers_x11(MPGLContext *ctx)
 }
 #endif
 
+#ifdef CONFIG_GL_WAYLAND
+
+#include "wayland_common.h"
+#include <wayland-egl.h>
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <assert.h>
+
+struct egl_context {
+    EGLSurface egl_surface;
+
+    struct wl_egl_window *egl_window;
+
+    struct {
+        EGLDisplay dpy;
+        EGLContext ctx;
+        EGLConfig conf;
+    } egl;
+};
+
+static void egl_resize_func(struct vo_wayland_state *wl,
+                            struct egl_context *ctx)
+{
+    int32_t x, y, scaled_height;
+    double ratio;
+    int minimum_size = 50;
+
+    if (wl->window->pending_width < minimum_size)
+        wl->window->pending_width = minimum_size;
+    if (wl->window->pending_height < minimum_size)
+        wl->window->pending_height = minimum_size;
+
+    ratio = (double) wl->vo->aspdat.orgw / wl->vo->aspdat.orgh;
+    scaled_height = wl->window->pending_height * ratio;
+    if (wl->window->pending_width > scaled_height) {
+        wl->window->pending_height = wl->window->pending_width / ratio;
+    } else {
+        wl->window->pending_width = scaled_height;
+    }
+
+    if (wl->window->edges & WL_SHELL_SURFACE_RESIZE_LEFT)
+        x = wl->window->width - wl->window->pending_width;
+    else
+        x = 0;
+
+    if (wl->window->edges & WL_SHELL_SURFACE_RESIZE_TOP)
+        y = wl->window->height - wl->window->pending_height;
+    else
+        y = 0;
+
+    wl_egl_window_resize(ctx->egl_window,
+            wl->window->pending_width,
+            wl->window->pending_height,
+            x, y);
+
+    wl->window->width = wl->window->pending_width;
+    wl->window->height = wl->window->pending_height;
+
+    /* set size for mplayer */
+    wl->vo->dwidth = wl->window->pending_width;
+    wl->vo->dheight = wl->window->pending_height;
+    wl->window->events |= VO_EVENT_RESIZE;
+    wl->window->edges = 0;
+    wl->window->resize_needed = 0;
+}
+
+static bool egl_create_context(struct vo_wayland_state *wl,
+                               struct egl_context *egl_ctx,
+                               MPGLContext *ctx)
+{
+    EGLint major, minor, n;
+    EGLBoolean ret;
+
+    GL *gl = ctx->gl;
+
+    void *(*getProcAddress)(const GLubyte *);
+    const char *(*eglExtStr)(EGLDisplay *, int);
+    const char *eglstr = "";
+
+    egl_ctx->egl.dpy = eglGetDisplay(wl->display->display);
+    if (!egl_ctx->egl.dpy)
+        return false;
+
+    EGLint config_attribs[] = {
+        EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
+        EGL_RED_SIZE, 1,
+        EGL_GREEN_SIZE, 1,
+        EGL_BLUE_SIZE, 1,
+        EGL_ALPHA_SIZE, 0,
+        EGL_DEPTH_SIZE, 1,
+        EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
+        EGL_NONE
+    };
+
+    /* major and minor here returns the supported EGL version (e.g.: 1.4) */
+    ret = eglInitialize(egl_ctx->egl.dpy, &major, &minor);
+    if (ret != EGL_TRUE)
+        return false;
+
+    EGLint context_attribs[] = {
+        EGL_CONTEXT_MAJOR_VERSION_KHR,
+        MPGL_VER_GET_MAJOR(ctx->requested_gl_version),
+        /* EGL_CONTEXT_MINOR_VERSION_KHR, */
+        /* MPGL_VER_GET_MINOR(ctx->requested_gl_version), */
+        /* EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR, 0, */
+        /* Segfaults on anything else than the major version */
+        EGL_NONE
+    };
+
+    ret = eglBindAPI(EGL_OPENGL_API);
+    assert(ret == EGL_TRUE);
+
+    ret = eglChooseConfig(egl_ctx->egl.dpy, config_attribs,
+            &egl_ctx->egl.conf, 1, &n);
+    assert(ret && n == 1);
+
+    egl_ctx->egl.ctx = eglCreateContext(egl_ctx->egl.dpy,
+                                        egl_ctx->egl.conf,
+                                        EGL_NO_CONTEXT,
+                                        context_attribs);
+    if (!egl_ctx->egl.ctx)
+        return false;
+
+    ret = eglMakeCurrent(egl_ctx->egl.dpy,
+                         NULL,
+                         NULL,
+                         egl_ctx->egl.ctx);
+
+    assert(ret == EGL_TRUE);
+
+    getProcAddress = getdladdr("eglGetProcAddress");
+    if (!getProcAddress)
+        mp_msg(MSGT_VO, MSGL_WARN, "[egl] No eglGetProcAdress");
+
+    eglExtStr = getdladdr("eglQueryString");
+    if (eglExtStr)
+        eglstr = eglExtStr(egl_ctx->egl.dpy, EGL_EXTENSIONS);
+
+    getFunctions(gl, (void*(*)(const GLubyte*))eglGetProcAddress, eglstr);
+    if (!gl->BindProgram)
+        getFunctions(gl, NULL, eglstr);
+
+    return true;
+}
+
+static void egl_create_window(struct vo_wayland_state *wl,
+                              struct egl_context *egl_ctx,
+                              uint32_t width,
+                              uint32_t height)
+{
+    EGLBoolean ret;
+
+    wl->window->pending_width = width;
+    wl->window->pending_height = height;
+    wl->window->width = width;
+    wl->window->height = height;
+
+    egl_ctx->egl_window = wl_egl_window_create(wl->window->surface,
+                                               wl->window->width,
+                                               wl->window->height);
+
+    egl_ctx->egl_surface = eglCreateWindowSurface(egl_ctx->egl.dpy,
+                                                  egl_ctx->egl.conf,
+                                                  egl_ctx->egl_window,
+                                                  NULL);
+
+    ret = eglMakeCurrent(egl_ctx->egl.dpy,
+                         egl_ctx->egl_surface,
+                         egl_ctx->egl_surface,
+                         egl_ctx->egl.ctx);
+
+    assert(ret == EGL_TRUE);
+
+    wl_display_dispatch_pending(wl->display->display);
+}
+
+static bool config_window_wayland(struct MPGLContext *ctx,
+                                  uint32_t d_width,
+                                  uint32_t d_height,
+                                  uint32_t flags)
+{
+    struct egl_context * egl_ctx = ctx->priv;
+    struct vo_wayland_state * wl = ctx->vo->wayland;
+    bool ret = false;
+
+    wl->window->pending_width = d_width;
+    wl->window->pending_height = d_height;
+    wl->window->width = d_width;
+    wl->window->height = d_height;
+
+    vo_wayland_update_window_title(ctx->vo);
+
+    if ((VOFLAG_FULLSCREEN & flags) && wl->window->type != TYPE_FULLSCREEN)
+        vo_wayland_fullscreen(ctx->vo);
+
+    if (!egl_ctx->egl.ctx) {
+        /* Create OpenGL context */
+        ret = egl_create_context(wl, egl_ctx, ctx);
+
+        /* If successfully created the context and we don't want to hide the
+         * window than also create the window immediately */
+        if (ret && !(VOFLAG_HIDDEN & flags))
+            egl_create_window(wl, egl_ctx, d_width, d_height);
+
+        return ret;
+    }
+    else {
+        /* If the window exists just resize it */
+        if (egl_ctx->egl_window)
+            egl_resize_func(wl, egl_ctx);
+
+        else {
+            /* If the context exists and the hidden flag is unset then
+             * create the window */
+            if (!(VOFLAG_HIDDEN & flags))
+                egl_create_window(wl, egl_ctx, d_width, d_height);
+        }
+        return true;
+    }
+}
+
+static void releaseGlContext_wayland(MPGLContext *ctx)
+{
+    GL *gl = ctx->gl;
+    struct egl_context * egl_ctx = ctx->priv;
+
+    gl->Finish();
+    eglMakeCurrent(egl_ctx->egl.dpy, NULL, NULL, EGL_NO_CONTEXT);
+    eglDestroyContext(egl_ctx->egl.dpy, egl_ctx->egl.ctx);
+    eglTerminate(egl_ctx->egl.dpy);
+    eglReleaseThread();
+    wl_egl_window_destroy(egl_ctx->egl_window);
+    egl_ctx->egl.ctx = NULL;
+}
+
+static void swapGlBuffers_wayland(MPGLContext *ctx)
+{
+    struct egl_context * egl_ctx = ctx->priv;
+    struct vo_wayland_state *wl = ctx->vo->wayland;
+
+    eglSwapBuffers(egl_ctx->egl.dpy, egl_ctx->egl_surface);
+
+    /* resize window after the buffers have swapped
+     * makes resizing more fluid */
+    if (wl->window->resize_needed) {
+        wl_egl_window_get_attached_size(egl_ctx->egl_window,
+            &wl->window->width,
+            &wl->window->height);
+        egl_resize_func(wl, egl_ctx);
+    }
+}
+
+#endif
 
 struct backend {
     const char *name;
@@ -1313,6 +1566,7 @@ static struct backend backends[] = {
     {"cocoa", GLTYPE_COCOA},
     {"win", GLTYPE_W32},
     {"x11", GLTYPE_X11},
+    {"wayland", GLTYPE_WAYLAND},
     {0}
 };
 
@@ -1335,7 +1589,10 @@ MPGLContext *mpgl_init(enum MPGLType type, struct vo *vo)
         ctx = mpgl_init(GLTYPE_W32, vo);
         if (ctx)
             return ctx;
-        return mpgl_init(GLTYPE_X11, vo);
+        ctx = mpgl_init(GLTYPE_X11, vo);
+        if (ctx)
+            return ctx;
+        return mpgl_init(GLTYPE_WAYLAND, vo);
     }
     ctx = talloc_zero(NULL, MPGLContext);
     *ctx = (MPGLContext) {
@@ -1390,6 +1647,21 @@ MPGLContext *mpgl_init(enum MPGLType type, struct vo *vo)
         ctx->vo_uninit = vo_x11_uninit;
         break;
 #endif
+#ifdef CONFIG_GL_WAYLAND
+    case GLTYPE_WAYLAND:
+        ctx->priv = talloc_zero(ctx, struct egl_context);
+        ctx->config_window = config_window_wayland;
+        ctx->releaseGlContext = releaseGlContext_wayland;
+        ctx->swapGlBuffers = swapGlBuffers_wayland;
+        ctx->update_xinerama_info = vo_wayland_update_screeninfo;
+        ctx->border = vo_wayland_border;
+        ctx->check_events = vo_wayland_check_events;
+        ctx->fullscreen = vo_wayland_fullscreen;
+        ctx->ontop = vo_wayland_ontop;
+        ctx->vo_init = vo_wayland_init;
+        ctx->vo_uninit = vo_wayland_uninit;
+        break;
+#endif
     }
     if (ctx->vo_init && ctx->vo_init(vo))
         return ctx;