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authorwm4 <wm4@nowhere>2015-12-19 12:45:07 +0100
committerwm4 <wm4@nowhere>2015-12-19 14:14:12 +0100
commit32cd85bc7ecfa74d3fefef5570e4ef546ae0643a (patch)
tree64103ab55f1970476bc212c573f9f8ddb2a364f6 /video/out/opengl/egl_helpers.c
parent3394d37b4ea6876c0a4484c51ba23e6b8ed08e5a (diff)
downloadmpv-32cd85bc7ecfa74d3fefef5570e4ef546ae0643a.tar.bz2
mpv-32cd85bc7ecfa74d3fefef5570e4ef546ae0643a.tar.xz
vo_opengl: x11egl: retrieve framebuffer depth
This is used for dithering, although I'm not aware of anyone who got higher than 8 bit depth support to work on Linux. Also put this into egl_helpers.c. Since EGL is pseudo-portable at best I have no hope that the EGL context creation code in all the backends can be fully shared. But some self-contained functionality can definitely be shared.
Diffstat (limited to 'video/out/opengl/egl_helpers.c')
-rw-r--r--video/out/opengl/egl_helpers.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/video/out/opengl/egl_helpers.c b/video/out/opengl/egl_helpers.c
new file mode 100644
index 0000000000..3455e5a203
--- /dev/null
+++ b/video/out/opengl/egl_helpers.c
@@ -0,0 +1,35 @@
+/*
+ * 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/>.
+ *
+ * You can alternatively redistribute this file and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ */
+
+#include "egl_helpers.h"
+#include "common.h"
+
+void mp_egl_get_depth(struct GL *gl, EGLConfig fbc)
+{
+ EGLint tokens[] = {EGL_RED_SIZE, EGL_GREEN_SIZE, EGL_BLUE_SIZE};
+ int *ptrs[] = {&gl->fb_r, &gl->fb_g, &gl->fb_b};
+ for (int n = 0; n < MP_ARRAY_SIZE(tokens); n++) {
+ EGLint depth = 0;
+ if (eglGetConfigAttrib(eglGetCurrentDisplay(), fbc, tokens[n], &depth))
+ *ptrs[n] = depth;
+ }
+}