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[637/906] x11_egl: add prelim support for choosing opengl or gles

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This commit is contained in:
Matthew Waters 2013-01-08 17:38:40 +11:00
parent 809646505c
commit d993ab7e4f
2 changed files with 96 additions and 24 deletions
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115
gst-libs/gst/gl/x11/gstglwindow_x11_egl.c
View file

@ -107,28 +107,58 @@ gst_gl_window_x11_egl_choose_format (GstGLWindowX11 * window_x11,
return TRUE;
}
static gboolean
gst_gl_window_x11_egl_choose_config (GstGLWindowX11EGL * window_egl,
GError ** error)
{
EGLint numConfigs;
gint i = 0;
EGLint config_attrib[20];
config_attrib[i++] = EGL_SURFACE_TYPE;
config_attrib[i++] = EGL_WINDOW_BIT;
config_attrib[i++] = EGL_RENDERABLE_TYPE;
if (window_egl->gl_api & GST_GL_API_GLES2)
config_attrib[i++] = EGL_OPENGL_ES2_BIT;
else
config_attrib[i++] = EGL_OPENGL_BIT;
config_attrib[i++] = EGL_DEPTH_SIZE;
config_attrib[i++] = 16;
config_attrib[i++] = EGL_NONE;
if (eglChooseConfig (window_egl->egl_display, config_attrib,
&window_egl->egl_config, 1, &numConfigs))
GST_INFO ("config set: %ld, %ld", (gulong) window_egl->egl_config,
(gulong) numConfigs);
else {
g_set_error (error, GST_GL_WINDOW_ERROR, GST_GL_WINDOW_ERROR_WRONG_CONFIG,
"Failed to set window configuration: %s", X11EGLErrorString ());
goto failure;
}
return TRUE;
failure:
return FALSE;
}
static gboolean
gst_gl_window_x11_egl_create_context (GstGLWindowX11 * window_x11,
GstGLAPI gl_api, guintptr external_gl_context, GError ** error)
{
GstGLWindowX11EGL *window_egl;
EGLint config_attrib[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_DEPTH_SIZE, 16,
EGL_NONE
};
EGLint context_attrib[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
gint i = 0;
EGLint context_attrib[3];
EGLint majorVersion;
EGLint minorVersion;
EGLint numConfigs;
EGLConfig config;
if ((gl_api & GST_GL_API_OPENGL) == GST_GL_API_NONE &&
(gl_api & GST_GL_API_GLES2) == GST_GL_API_NONE) {
g_set_error (error, GST_GL_WINDOW_ERROR, GST_GL_WINDOW_ERROR_WRONG_API,
"xEGL supports opengl or gles2");
goto failure;
}
window_egl = GST_GL_WINDOW_X11_EGL (window_x11);
@ -144,17 +174,47 @@ gst_gl_window_x11_egl_create_context (GstGLWindowX11 * window_x11,
goto failure;
}
if (eglChooseConfig (window_egl->egl_display, config_attrib, &config, 1,
&numConfigs))
GST_INFO ("config set: %ld, %ld", (gulong) config, (gulong) numConfigs);
else {
g_set_error (error, GST_GL_WINDOW_ERROR, GST_GL_WINDOW_ERROR_WRONG_CONFIG,
"Failed to set window configuration: %s", X11EGLErrorString ());
if (gl_api & GST_GL_API_OPENGL) {
/* egl + opengl only available with EGL 1.4+ */
if (majorVersion == 1 && minorVersion <= 3) {
if ((gl_api & ~GST_GL_API_OPENGL) == GST_GL_API_NONE) {
g_set_error (error, GST_GL_WINDOW_ERROR, GST_GL_WINDOW_ERROR_OLD_LIBS,
"EGL version (%i.%i) too old for OpenGL support, (needed at least 1.4)",
majorVersion, minorVersion);
goto failure;
} else {
GST_WARNING
("EGL version (%i.%i) too old for OpenGL support, (needed at least 1.4)",
majorVersion, minorVersion);
if (gl_api & GST_GL_API_GLES2)
goto try_gles2;
else
goto failure;
}
}
if (!eglBindAPI (EGL_OPENGL_API)) {
g_set_error (error, GST_GL_WINDOW_ERROR, GST_GL_WINDOW_ERROR_FAILED,
"Failed to bind OpenGL|ES API: %s", X11EGLErrorString ());
goto failure;
}
window_egl->gl_api = GST_GL_API_OPENGL;
} else if (gl_api & GST_GL_API_GLES2) {
try_gles2:
if (!eglBindAPI (EGL_OPENGL_ES_API)) {
g_set_error (error, GST_GL_WINDOW_ERROR, GST_GL_WINDOW_ERROR_FAILED,
"Failed to bind OpenGL|ES API: %s", X11EGLErrorString ());
goto failure;
}
window_egl->gl_api = GST_GL_API_GLES2;
}
gst_gl_window_x11_egl_choose_config (window_egl, error);
window_egl->egl_surface =
eglCreateWindowSurface (window_egl->egl_display, config,
eglCreateWindowSurface (window_egl->egl_display, window_egl->egl_config,
(EGLNativeWindowType) window_x11->internal_win_id, NULL);
if (window_egl->egl_surface != EGL_NO_SURFACE)
GST_INFO ("surface created");
@ -166,8 +226,14 @@ gst_gl_window_x11_egl_create_context (GstGLWindowX11 * window_x11,
GST_DEBUG ("about to create gl context\n");
if (window_egl->gl_api & GST_GL_API_GLES2) {
context_attrib[i++] = EGL_CONTEXT_CLIENT_VERSION;
context_attrib[i++] = 2;
}
context_attrib[i++] = EGL_NONE;
window_egl->egl_context =
eglCreateContext (window_egl->egl_display, config,
eglCreateContext (window_egl->egl_display, window_egl->egl_config,
(EGLContext) external_gl_context, context_attrib);
if (window_egl->egl_context != EGL_NO_CONTEXT)
@ -233,7 +299,10 @@ gst_gl_window_x11_egl_swap_buffers (GstGLWindowX11 * window_x11)
GstGLAPI
gst_gl_window_x11_egl_get_gl_api (GstGLWindow * window)
{
return GST_GL_API_GLES2;
GstGLWindowX11EGL *window_egl = GST_GL_WINDOW_X11_EGL (window);
return window_egl->gl_api ? window_egl->
gl_api : GST_GL_API_GLES2 | GST_GL_API_OPENGL;
}
const gchar *

3
gst-libs/gst/gl/x11/gstglwindow_x11_egl.h
View file

@ -44,6 +44,9 @@ struct _GstGLWindowX11EGL {
EGLContext egl_context;
EGLDisplay egl_display;
EGLSurface egl_surface;
EGLConfig egl_config;
GstGLAPI gl_api;
gpointer _reserved[GST_PADDING];
};