1 files changed, 146 insertions, 0 deletions
diff --git a/video/out/gl_hwdec_vda.c b/video/out/gl_hwdec_vda.c
new file mode 100644
index 0000000000..65615bac6b
--- /dev/null
+++ b/video/out/gl_hwdec_vda.c
@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2013 Stefano Pigozzi <stefano.pigozzi@gmail.com>
+ *
+ * This file is part of mpv.
+ *
+ * mpv is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * mpv is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with mpv.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <IOSurface/IOSurface.h>
+#include <CoreVideo/CoreVideo.h>
+#include <OpenGL/OpenGL.h>
+
+#include "video/decode/dec_video.h"
+#include "cocoa_common.h"
+#include "gl_common.h"
+
+struct priv {
+    CVPixelBufferRef pbuf;
+    GLuint gl_texture;
+};
+
+static bool check_hwdec(struct gl_hwdec *hw)
+{
+    struct vo *vo = hw->mpgl->vo;
+
+    if (hw->gl_texture_target != GL_TEXTURE_RECTANGLE) {
+        MP_ERR(hw, "must use rectangle video textures with VDA\n");
+        return false;
+    }
+
+    if (!vo->cocoa) {
+        MP_ERR(hw, "need cocoa opengl backend to be active");
+        return false;
+    }
+
+    return true;
+}
+
+static int create(struct gl_hwdec *hw)
+{
+    struct priv *p = talloc_zero(hw, struct priv);
+    hw->priv = p;
+    hw->converted_imgfmt = IMGFMT_UYVY;
+    hw->gl_texture_target = GL_TEXTURE_RECTANGLE;
+
+    if (!check_hwdec(hw))
+        return -1;
+
+    GL *gl = hw->mpgl->gl;
+    gl->GenTextures(1, &p->gl_texture);
+
+    return 0;
+}
+
+static int reinit(struct gl_hwdec *hw, const struct mp_image_params *params)
+{
+    return 0;
+}
+
+static int map_image(struct gl_hwdec *hw, struct mp_image *hw_image,
+                     GLuint *out_textures)
+{
+    if (!check_hwdec(hw))
+        return -1;
+
+    struct priv *p = hw->priv;
+    struct vo *vo = hw->mpgl->vo;
+    GL *gl = hw->mpgl->gl;
+
+    CVPixelBufferRelease(p->pbuf);
+    p->pbuf = (CVPixelBufferRef)hw_image->planes[3];
+    CVPixelBufferRetain(p->pbuf);
+    IOSurfaceRef surface = CVPixelBufferGetIOSurface(p->pbuf);
+
+    gl->BindTexture(hw->gl_texture_target, p->gl_texture);
+
+    CGLError err = CGLTexImageIOSurface2D(
+        vo_cocoa_cgl_context(vo), hw->gl_texture_target, GL_RGB,
+        CVPixelBufferGetWidth(p->pbuf), CVPixelBufferGetHeight(p->pbuf),
+        GL_RGB_422_APPLE, GL_UNSIGNED_SHORT_8_8_APPLE, surface, 0);
+
+    if (err != kCGLNoError)
+        MP_ERR(vo, "error creating IOSurface texture: %s (%x)\n",
+               CGLErrorString(err), gl->GetError());
+
+    gl->BindTexture(hw->gl_texture_target, 0);
+
+    out_textures[0] = p->gl_texture;
+    return 0;
+}
+
+static void unmap_image(struct gl_hwdec *hw) { }
+
+static struct mp_image *download_image(struct gl_hwdec *hw)
+{
+    struct priv *p = hw->priv;
+    CVPixelBufferLockBaseAddress(p->pbuf, 0);
+    void *base = CVPixelBufferGetBaseAddress(p->pbuf);
+    size_t width  = CVPixelBufferGetWidth(p->pbuf);
+    size_t height = CVPixelBufferGetHeight(p->pbuf);
+    size_t stride = CVPixelBufferGetBytesPerRow(p->pbuf);
+
+    struct mp_image img = {0};
+    mp_image_setfmt(&img, IMGFMT_UYVY);
+    mp_image_set_size(&img, width, height);
+    img.planes[0] = base;
+    img.stride[0] = stride;
+
+    struct mp_image *image = mp_image_new_copy(&img);
+    CVPixelBufferUnlockBaseAddress(p->pbuf, 0);
+
+    return image;
+}
+
+static void destroy(struct gl_hwdec *hw)
+{
+    struct priv *p = hw->priv;
+    GL *gl = hw->mpgl->gl;
+
+    CVPixelBufferRelease(p->pbuf);
+    gl->DeleteTextures(1, &p->gl_texture);
+    p->gl_texture = 0;
+}
+
+
+const struct gl_hwdec_driver gl_hwdec_vda = {
+    .api_name = "vda",
+    .imgfmt = IMGFMT_VDA,
+    .create = create,
+    .reinit = reinit,
+    .map_image = map_image,
+    .unmap_image = unmap_image,
+    .download_image = download_image,
+    .destroy = destroy,
+};