/**
* gst_gl_memory_egl_get_display:
* @mem: a #GstGLMemoryEGL
*
* Returns: The EGLDisplay @mem is associated with
*
* Since: 1.10
*/
EGLDisplay
gst_gl_memory_egl_get_display (GstGLMemoryEGL * mem)
{
g_return_val_if_fail (gst_is_gl_memory_egl (GST_MEMORY_CAST (mem)), NULL);
return GST_GL_CONTEXT_EGL (_gl_mem_get_parent (mem)->mem.mem.
context)->egl_display;
}
static void
draw_cb (gpointer data)
{
GstGLWindowAndroidEGL *window_egl = data;
GstGLWindow *window = GST_GL_WINDOW (window_egl);
GstGLContext *context = gst_gl_window_get_context (window);
GstGLContextEGL *context_egl = GST_GL_CONTEXT_EGL (context);
GstGLContextClass *context_class = GST_GL_CONTEXT_GET_CLASS (context);
if (context_egl->egl_surface) {
gint width, height;
if (eglQuerySurface (context_egl->egl_display,
context_egl->egl_surface, EGL_WIDTH, &width) &&
eglQuerySurface (context_egl->egl_display,
context_egl->egl_surface, EGL_HEIGHT, &height)
&& (width != window_egl->window_width
|| height != window_egl->window_height)) {
window_egl->window_width = width;
window_egl->window_height = height;
if (window->resize)
window->resize (window->resize_data, width, height);
}
}
if (window->draw)
window->draw (window->draw_data);
context_class->swap_buffers (context);
gst_object_unref (context);
}
static void
gst_gl_context_egl_destroy_context (GstGLContext * context)
{
GstGLContextEGL *egl;
egl = GST_GL_CONTEXT_EGL (context);
gst_gl_context_egl_activate (context, FALSE);
if (egl->egl_surface) {
eglDestroySurface (egl->egl_display, egl->egl_surface);
egl->egl_surface = EGL_NO_SURFACE;
}
if (egl->egl_context) {
eglDestroyContext (egl->egl_display, egl->egl_context);
egl->egl_context = NULL;
}
egl->window_handle = 0;
eglReleaseThread ();
if (egl->display_egl) {
gst_object_unref (egl->display_egl);
egl->display_egl = NULL;
}
}
static void
gst_gl_context_egl_swap_buffers (GstGLContext * context)
{
GstGLContextEGL *egl;
egl = GST_GL_CONTEXT_EGL (context);
eglSwapBuffers (egl->egl_display, egl->egl_surface);
}
GstEGLImage *
gst_egl_image_from_dmabuf (GstGLContext * context,
gint dmabuf, GstVideoInfo * in_info, gint plane, gsize offset)
{
GstGLContextEGL *ctx_egl = GST_GL_CONTEXT_EGL (context);
gint fourcc;
gint atti = 0;
EGLint attribs[13];
EGLImageKHR img = EGL_NO_IMAGE_KHR;
GstVideoGLTextureType type;
fourcc = _drm_fourcc_from_info (in_info, plane);
type =
gst_gl_texture_type_from_format (context, GST_VIDEO_INFO_FORMAT (in_info),
plane);
GST_DEBUG ("fourcc %.4s (%d) plane %d (%dx%d)",
(char *) &fourcc, fourcc, plane,
GST_VIDEO_INFO_COMP_WIDTH (in_info, plane),
GST_VIDEO_INFO_COMP_HEIGHT (in_info, plane));
attribs[atti++] = EGL_WIDTH;
attribs[atti++] = GST_VIDEO_INFO_COMP_WIDTH (in_info, plane);
attribs[atti++] = EGL_HEIGHT;
attribs[atti++] = GST_VIDEO_INFO_COMP_HEIGHT (in_info, plane);
attribs[atti++] = EGL_LINUX_DRM_FOURCC_EXT;
attribs[atti++] = fourcc;
attribs[atti++] = EGL_DMA_BUF_PLANE0_FD_EXT;
attribs[atti++] = dmabuf;
attribs[atti++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT;
attribs[atti++] = offset;
attribs[atti++] = EGL_DMA_BUF_PLANE0_PITCH_EXT;
attribs[atti++] = GST_VIDEO_INFO_PLANE_STRIDE (in_info, plane);
attribs[atti] = EGL_NONE;
for (int i = 0; i < atti; i++)
GST_LOG ("attr %i: %08X", i, attribs[i]);
g_assert (atti == 12);
img = ctx_egl->eglCreateImage (ctx_egl->egl_display, EGL_NO_CONTEXT,
EGL_LINUX_DMA_BUF_EXT, NULL, attribs);
if (!img) {
GST_WARNING ("eglCreateImage failed: %s",
gst_gl_context_egl_get_error_string (eglGetError ()));
return NULL;
}
return gst_egl_image_new_wrapped (context, img, type,
GST_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_NORMAL,
(GstEGLImageDestroyNotify) _destroy_egl_image, NULL);
}
static void
gst_gl_context_egl_get_gl_platform_version (GstGLContext * context,
gint * major, gint * minor)
{
GstGLContextEGL *context_egl = GST_GL_CONTEXT_EGL (context);
*major = context_egl->egl_major;
*minor = context_egl->egl_minor;
}
static gboolean
gst_gl_context_egl_activate (GstGLContext * context, gboolean activate)
{
GstGLContextEGL *egl;
gboolean result;
egl = GST_GL_CONTEXT_EGL (context);
if (activate) {
GstGLWindow *window = gst_gl_context_get_window (context);
EGLNativeWindowType handle = 0;
/* Check if the backing handle changed */
if (window) {
handle = (EGLNativeWindowType) gst_gl_window_get_window_handle (window);
gst_object_unref (window);
}
if (handle && handle != egl->window_handle) {
GST_DEBUG_OBJECT (context,
"Handle changed (have:%p, now:%p), switching surface",
(void *) egl->window_handle, (void *) handle);
if (egl->egl_surface) {
result = eglDestroySurface (egl->egl_display, egl->egl_surface);
egl->egl_surface = EGL_NO_SURFACE;
if (!result) {
GST_ERROR_OBJECT (context, "Failed to destroy old window surface: %s",
gst_egl_get_error_string (eglGetError ()));
goto done;
}
}
egl->egl_surface =
eglCreateWindowSurface (egl->egl_display, egl->egl_config, handle,
NULL);
egl->window_handle = handle;
if (egl->egl_surface == EGL_NO_SURFACE) {
GST_ERROR_OBJECT (context, "Failed to create window surface: %s",
gst_egl_get_error_string (eglGetError ()));
result = FALSE;
goto done;
}
}
result = eglMakeCurrent (egl->egl_display, egl->egl_surface,
egl->egl_surface, egl->egl_context);
} else {
result = eglMakeCurrent (egl->egl_display, EGL_NO_SURFACE,
EGL_NO_SURFACE, EGL_NO_CONTEXT);
}
if (!result) {
GST_ERROR_OBJECT (context,
"Failed to bind context to the current rendering thread: %s",
gst_egl_get_error_string (eglGetError ()));
}
done:
return result;
}
GstMemory *
gst_egl_image_memory_from_dmabuf (GstGLContext * context,
gint dmabuf, GstVideoInfo * in_info, gint plane, gsize offset)
{
GstGLContextEGL *ctx_egl = GST_GL_CONTEXT_EGL (context);
GstEGLImageAllocator *allocator;
gint fourcc;
gint atti = 0;
EGLint attribs[13];
EGLImageKHR img = EGL_NO_IMAGE_KHR;
allocator = gst_egl_image_allocator_obtain ();
fourcc = _drm_fourcc_from_info (in_info, plane);
GST_DEBUG ("fourcc %.4s (%d) plane %d (%dx%d)",
(char *) &fourcc, fourcc, plane,
GST_VIDEO_INFO_COMP_WIDTH (in_info, plane),
GST_VIDEO_INFO_COMP_HEIGHT (in_info, plane));
attribs[atti++] = EGL_WIDTH;
attribs[atti++] = GST_VIDEO_INFO_COMP_WIDTH (in_info, plane);
attribs[atti++] = EGL_HEIGHT;
attribs[atti++] = GST_VIDEO_INFO_COMP_HEIGHT (in_info, plane);
attribs[atti++] = EGL_LINUX_DRM_FOURCC_EXT;
attribs[atti++] = fourcc;
attribs[atti++] = EGL_DMA_BUF_PLANE0_FD_EXT;
attribs[atti++] = dmabuf;
attribs[atti++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT;
attribs[atti++] = offset;
attribs[atti++] = EGL_DMA_BUF_PLANE0_PITCH_EXT;
attribs[atti++] = GST_VIDEO_INFO_PLANE_STRIDE (in_info, plane);
attribs[atti] = EGL_NONE;
for (int i = 0; i < atti; i++)
GST_LOG ("attr %i: %08X", i, attribs[i]);
g_assert (atti == 12);
img = ctx_egl->eglCreateImage (ctx_egl->egl_display, EGL_NO_CONTEXT,
EGL_LINUX_DMA_BUF_EXT, NULL, attribs);
if (!img) {
GST_WARNING_OBJECT (allocator, "eglCreateImage failed: %s",
gst_gl_context_egl_get_error_string ());
return NULL;
}
return gst_egl_image_allocator_wrap (allocator, ctx_egl, img, 0, 0,
in_info->size, NULL, NULL);
}
static void
gst_gl_context_egl_destroy_context (GstGLContext * context)
{
GstGLContextEGL *egl;
egl = GST_GL_CONTEXT_EGL (context);
gst_gl_context_egl_activate (context, FALSE);
if (egl->egl_surface)
eglDestroySurface (egl->egl_display, egl->egl_surface);
if (egl->egl_context)
eglDestroyContext (egl->egl_display, egl->egl_context);
eglReleaseThread ();
}
static gboolean
gst_gl_context_egl_activate (GstGLContext * context, gboolean activate)
{
GstGLContextEGL *egl;
gboolean result;
egl = GST_GL_CONTEXT_EGL (context);
if (activate)
result = eglMakeCurrent (egl->egl_display, egl->egl_surface,
egl->egl_surface, egl->egl_context);
else
result = eglMakeCurrent (egl->egl_display, EGL_NO_SURFACE,
EGL_NO_SURFACE, EGL_NO_CONTEXT);
return result;
}
static gboolean
_gl_mem_create (GstGLMemoryEGL * gl_mem, GError ** error)
{
GstGLContext *context = gl_mem->mem.mem.context;
GstGLContextEGL *ctx_egl = GST_GL_CONTEXT_EGL (context);
const GstGLFuncs *gl = context->gl_vtable;
GstGLBaseMemoryAllocatorClass *alloc_class;
if (!gst_gl_context_check_feature (GST_GL_CONTEXT (context),
"EGL_KHR_image_base")) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_WRONG_API,
"EGL_KHR_image_base is not supported");
return FALSE;
}
alloc_class = GST_GL_BASE_MEMORY_ALLOCATOR_CLASS (parent_class);
if (!alloc_class->create ((GstGLBaseMemory *) gl_mem, error))
return FALSE;
if (gl_mem->image == NULL) {
EGLImageKHR image = ctx_egl->eglCreateImageKHR (ctx_egl->egl_display,
ctx_egl->egl_context, EGL_GL_TEXTURE_2D_KHR,
(EGLClientBuffer) (guintptr) gl_mem->mem.tex_id, NULL);
GST_TRACE ("Generating EGLImage handle:%p from a texture:%u",
gl_mem->image, gl_mem->mem.tex_id);
if (eglGetError () != EGL_SUCCESS) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_FAILED,
"Failed to create EGLImage");
return FALSE;
}
gl_mem->image = gst_egl_image_new_wrapped (context, image, 0, 0,
NULL, (GstEGLImageDestroyNotify) _destroy_egl_image);
} else {
gl->ActiveTexture (GL_TEXTURE0 + gl_mem->mem.plane);
gl->BindTexture (GL_TEXTURE_2D, gl_mem->mem.tex_id);
gl->EGLImageTargetTexture2D (GL_TEXTURE_2D,
gst_egl_image_get_image (GST_EGL_IMAGE (gl_mem->image)));
}
return TRUE;
}
gpointer
gst_gl_context_egl_get_proc_address (GstGLContext * context, const gchar * name)
{
gpointer result = NULL;
static GOnce g_once = G_ONCE_INIT;
GstGLAPI gl_api = gst_gl_context_get_gl_api (context);
result = gst_gl_context_default_get_proc_address (gl_api, name);
g_once (&g_once, load_egl_module, NULL);
if (!result && module_egl) {
g_module_symbol (module_egl, name, &result);
}
/* FIXME: On Android this returns wrong addresses for non-EGL functions */
#if GST_GL_HAVE_WINDOW_ANDROID
if (!result && g_str_has_prefix (name, "egl")) {
#else
if (!result) {
result = eglGetProcAddress (name);
#endif
}
return result;
}
static gboolean
gst_gl_context_egl_check_feature (GstGLContext * context, const gchar * feature)
{
GstGLContextEGL *context_egl = GST_GL_CONTEXT_EGL (context);
if (g_strcmp0 (feature, "EGL_KHR_image_base") == 0) {
return context_egl->eglCreateImage != NULL &&
context_egl->eglDestroyImage != NULL;
}
return FALSE;
}
gboolean
gst_egl_image_memory_setup_buffer (GstGLContext * ctx, GstVideoInfo * info,
GstBuffer * buffer)
{
gint i = 0;
gint stride[3];
gsize offset[3];
GstMemory *mem[3] = { NULL, NULL, NULL };
guint n_mem = 0;
GstMemoryFlags flags = 0;
EGLImageKHR image = EGL_NO_IMAGE_KHR;
EGLClientBuffer client_buffer_tex[3] = { 0, 0, 0 };
GstVideoGLTextureType texture_types[] = { 0, 0, 0, 0 };
GstEGLImageAllocator *allocator = gst_egl_image_allocator_obtain ();
GstGLContextEGL *context = GST_GL_CONTEXT_EGL (ctx);
g_return_val_if_fail (ctx, FALSE);
g_return_val_if_fail (info, FALSE);
g_return_val_if_fail (buffer, FALSE);
g_return_val_if_fail (gst_gl_context_check_feature (ctx,
"EGL_KHR_image_base"), FALSE);
memset (stride, 0, sizeof (stride));
memset (offset, 0, sizeof (offset));
flags |= GST_MEMORY_FLAG_NOT_MAPPABLE;
flags |= GST_MEMORY_FLAG_NO_SHARE;
switch (GST_VIDEO_INFO_FORMAT (info)) {
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
case GST_VIDEO_FORMAT_RGB16:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_AYUV:
{
gsize size = 0;
switch (GST_VIDEO_INFO_FORMAT (info)) {
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
case GST_VIDEO_FORMAT_RGB16:
{
texture_types[0] = GST_VIDEO_GL_TEXTURE_TYPE_RGB;
break;
}
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_AYUV:
{
texture_types[0] = GST_VIDEO_GL_TEXTURE_TYPE_RGBA;
break;
}
default:
g_assert_not_reached ();
break;
}
#if 0
mem[0] =
gst_egl_image_allocator_alloc (allocator, context,
texture_types[0], GST_VIDEO_INFO_WIDTH (info),
GST_VIDEO_INFO_HEIGHT (info), size);
if (mem[0]) {
stride[0] = size / GST_VIDEO_INFO_HEIGHT (info);
n_mem = 1;
GST_MINI_OBJECT_FLAG_SET (mem[0], GST_MEMORY_FLAG_NO_SHARE);
} else
#endif
{
gst_gl_generate_texture_full (GST_GL_CONTEXT (context), info, 0, stride,
offset, &size, (GLuint *) & client_buffer_tex[0]);
image = context->eglCreateImage (context->egl_display,
context->egl_context, EGL_GL_TEXTURE_2D_KHR, client_buffer_tex[0],
NULL);
if (eglGetError () != EGL_SUCCESS)
goto mem_error;
mem[0] =
gst_egl_image_allocator_wrap (allocator, context,
image, texture_types[0], flags, size, client_buffer_tex[0],
(GstEGLImageDestroyNotify) gst_egl_image_memory_del_gl_texture);
n_mem = 1;
}
break;
}
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
{
gsize size[2];
texture_types[0] = GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE;
texture_types[1] = GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE_ALPHA;
#if 0
mem[0] =
gst_egl_image_allocator_alloc (allocator, context,
texture_types[0], GST_VIDEO_INFO_COMP_WIDTH (info,
0), GST_VIDEO_INFO_COMP_HEIGHT (info, 0), size[0]);
mem[1] =
gst_egl_image_allocator_alloc (allocator, context,
texture_types[1],
GST_VIDEO_INFO_COMP_WIDTH (info, 1),
GST_VIDEO_INFO_COMP_HEIGHT (info, 1), size[1]);
if (mem[0] && mem[1]) {
stride[0] = size[0] / GST_VIDEO_INFO_HEIGHT (info);
offset[1] = size[0];
stride[1] = size[1] / GST_VIDEO_INFO_HEIGHT (info);
n_mem = 2;
GST_MINI_OBJECT_FLAG_SET (mem[0], GST_MEMORY_FLAG_NO_SHARE);
GST_MINI_OBJECT_FLAG_SET (mem[1], GST_MEMORY_FLAG_NO_SHARE);
} else {
if (mem[0])
gst_memory_unref (mem[0]);
if (mem[1])
gst_memory_unref (mem[1]);
mem[0] = mem[1] = NULL;
}
#endif
{
for (i = 0; i < 2; i++) {
gst_gl_generate_texture_full (GST_GL_CONTEXT (context), info, 0,
stride, offset, size, (GLuint *) & client_buffer_tex[i]);
image = context->eglCreateImage (context->egl_display,
context->egl_context, EGL_GL_TEXTURE_2D_KHR, client_buffer_tex[i],
NULL);
if (eglGetError () != EGL_SUCCESS)
goto mem_error;
mem[i] =
gst_egl_image_allocator_wrap (allocator, context,
image, texture_types[i], flags, size[i], client_buffer_tex[i],
(GstEGLImageDestroyNotify) gst_egl_image_memory_del_gl_texture);
}
n_mem = 2;
}
break;
}
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_Y42B:
case GST_VIDEO_FORMAT_Y41B:
{
gsize size[3];
texture_types[0] = GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE;
texture_types[1] = GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE;
texture_types[2] = GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE;
#if 0
mem[0] =
gst_egl_image_allocator_alloc (allocator, context,
texture_types[0], GST_VIDEO_INFO_COMP_WIDTH (info,
0), GST_VIDEO_INFO_COMP_HEIGHT (info, 0), size[0]);
mem[1] =
gst_egl_image_allocator_alloc (allocator, context,
texture_types[1], GST_VIDEO_INFO_COMP_WIDTH (info,
1), GST_VIDEO_INFO_COMP_HEIGHT (info, 1), size[1]);
mem[2] =
gst_egl_image_allocator_alloc (allocator, context,
texture_types[2], GST_VIDEO_INFO_COMP_WIDTH (info,
2), GST_VIDEO_INFO_COMP_HEIGHT (info, 2), size[2]);
if (mem[0] && mem[1] && mem[2]) {
stride[0] = size[0] / GST_VIDEO_INFO_HEIGHT (info);
offset[1] = size[0];
stride[1] = size[1] / GST_VIDEO_INFO_HEIGHT (info);
offset[2] = size[1];
stride[2] = size[2] / GST_VIDEO_INFO_HEIGHT (info);
n_mem = 3;
GST_MINI_OBJECT_FLAG_SET (mem[0], GST_MEMORY_FLAG_NO_SHARE);
GST_MINI_OBJECT_FLAG_SET (mem[1], GST_MEMORY_FLAG_NO_SHARE);
GST_MINI_OBJECT_FLAG_SET (mem[2], GST_MEMORY_FLAG_NO_SHARE);
} else {
if (mem[0])
gst_memory_unref (mem[0]);
if (mem[1])
gst_memory_unref (mem[1]);
if (mem[2])
gst_memory_unref (mem[2]);
mem[0] = mem[1] = mem[2] = NULL;
}
#endif
{
for (i = 0; i < 3; i++) {
gst_gl_generate_texture_full (GST_GL_CONTEXT (context), info, i,
stride, offset, size, (GLuint *) & client_buffer_tex[i]);
image = context->eglCreateImage (context->egl_display,
context->egl_context, EGL_GL_TEXTURE_2D_KHR, client_buffer_tex[i],
NULL);
if (eglGetError () != EGL_SUCCESS)
goto mem_error;
mem[i] =
gst_egl_image_allocator_wrap (allocator, context,
image, texture_types[i], flags, size[i], client_buffer_tex[i],
(GstEGLImageDestroyNotify) gst_egl_image_memory_del_gl_texture);
}
n_mem = 3;
}
break;
}
default:
g_assert_not_reached ();
break;
}
gst_buffer_add_video_meta_full (buffer, 0, GST_VIDEO_INFO_FORMAT (info),
GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info),
GST_VIDEO_INFO_N_PLANES (info), offset, stride);
gst_buffer_add_video_gl_texture_upload_meta (buffer,
gst_egl_image_memory_get_orientation (mem[0]), n_mem, texture_types,
gst_eglimage_to_gl_texture_upload_meta, NULL, NULL, NULL);
for (i = 0; i < n_mem; i++)
gst_buffer_append_memory (buffer, mem[i]);
return TRUE;
mem_error:
{
GST_CAT_ERROR (GST_CAT_DEFAULT, "Failed to create EGLImage");
for (i = 0; i < 3; i++) {
if (client_buffer_tex[i])
gst_gl_context_del_texture (ctx, (GLuint *) & client_buffer_tex[i]);
if (mem[i])
gst_memory_unref (mem[i]);
}
return FALSE;
}
}
static GstGLAPI
gst_gl_context_egl_get_gl_api (GstGLContext * context)
{
return GST_GL_CONTEXT_EGL (context)->gl_api;
}
static guintptr
gst_gl_context_egl_get_gl_context (GstGLContext * context)
{
return (guintptr) GST_GL_CONTEXT_EGL (context)->egl_context;
}
static gboolean
gst_gl_context_egl_create_context (GstGLContext * context,
GstGLAPI gl_api, GstGLContext * other_context, GError ** error)
{
GstGLContextEGL *egl;
GstGLWindow *window = NULL;
EGLNativeWindowType window_handle;
gint i = 0;
EGLint context_attrib[3];
EGLint majorVersion;
EGLint minorVersion;
const gchar *egl_exts;
gboolean need_surface = TRUE;
guintptr external_gl_context = 0;
egl = GST_GL_CONTEXT_EGL (context);
window = gst_gl_context_get_window (context);
if (other_context) {
if (!GST_GL_IS_CONTEXT_EGL (other_context)) {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_WRONG_CONFIG,
"Cannot share context with non-EGL context");
goto failure;
}
external_gl_context = gst_gl_context_get_gl_context (other_context);
}
if ((gl_api & (GST_GL_API_OPENGL | GST_GL_API_GLES2)) == GST_GL_API_NONE) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_WRONG_API,
"EGL supports opengl or gles2");
goto failure;
}
if (other_context) {
GstGLContextEGL *other_egl = (GstGLContextEGL *) other_context;
egl->egl_display = other_egl->egl_display;
} else {
egl->egl_display = eglGetDisplay ((EGLNativeDisplayType)
gst_gl_window_get_display (window));
}
if (eglInitialize (egl->egl_display, &majorVersion, &minorVersion)) {
GST_INFO ("egl initialized, version: %d.%d", majorVersion, minorVersion);
} else {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_RESOURCE_UNAVAILABLE,
"Failed to initialize egl: %s", gst_gl_context_egl_get_error_string ());
goto failure;
}
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_CONTEXT_ERROR, GST_GL_CONTEXT_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 {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_WRONG_CONFIG,
"Failed to choose a suitable OpenGL API");
goto failure;
}
}
}
if (!eglBindAPI (EGL_OPENGL_API)) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_FAILED,
"Failed to bind OpenGL API: %s",
gst_gl_context_egl_get_error_string ());
goto failure;
}
GST_INFO ("Using OpenGL");
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_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_FAILED,
"Failed to bind OpenGL|ES API: %s",
gst_gl_context_egl_get_error_string ());
goto failure;
}
GST_INFO ("Using OpenGL|ES 2.0");
egl->gl_api = GST_GL_API_GLES2;
}
if (!gst_gl_context_egl_choose_config (egl, other_context, error)) {
g_assert (error == NULL || *error != NULL);
goto failure;
}
GST_DEBUG ("about to create gl context\n");
if (egl->gl_api & GST_GL_API_GLES2) {
context_attrib[i++] = EGL_CONTEXT_CLIENT_VERSION;
context_attrib[i++] = 2;
}
context_attrib[i++] = EGL_NONE;
egl->egl_context =
eglCreateContext (egl->egl_display, egl->egl_config,
(EGLContext) external_gl_context, context_attrib);
if (egl->egl_context != EGL_NO_CONTEXT) {
GST_INFO ("gl context created: %" G_GUINTPTR_FORMAT,
(guintptr) egl->egl_context);
} else {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_CREATE_CONTEXT,
"Failed to create a OpenGL context: %s",
gst_gl_context_egl_get_error_string ());
goto failure;
}
egl_exts = eglQueryString (egl->egl_display, EGL_EXTENSIONS);
if (other_context == NULL) {
/* FIXME do we want a window vfunc ? */
#if GST_GL_HAVE_WINDOW_X11
if (GST_GL_IS_WINDOW_X11 (context->window)) {
gst_gl_window_x11_create_window ((GstGLWindowX11 *) context->window);
}
#endif
#if GST_GL_HAVE_WINDOW_WIN32
if (GST_GL_IS_WINDOW_WIN32 (context->window)) {
gst_gl_window_win32_create_window ((GstGLWindowWin32 *) context->window);
}
#endif
}
window_handle =
(EGLNativeWindowType) gst_gl_window_get_window_handle (window);
if (window_handle) {
egl->egl_surface =
eglCreateWindowSurface (egl->egl_display, egl->egl_config,
window_handle, NULL);
} else if (!gst_gl_check_extension ("EGL_KHR_surfaceless_context", egl_exts)) {
EGLint surface_attrib[7];
gint j = 0;
/* FIXME: Width/height doesn't seem to matter but we can't leave them
* at 0, otherwise X11 complains about BadValue */
surface_attrib[j++] = EGL_WIDTH;
surface_attrib[j++] = 1;
surface_attrib[j++] = EGL_HEIGHT;
surface_attrib[j++] = 1;
surface_attrib[j++] = EGL_LARGEST_PBUFFER;
surface_attrib[j++] = EGL_TRUE;
surface_attrib[j++] = EGL_NONE;
egl->egl_surface =
eglCreatePbufferSurface (egl->egl_display, egl->egl_config,
surface_attrib);
} else {
egl->egl_surface = EGL_NO_SURFACE;
need_surface = FALSE;
}
if (need_surface) {
if (egl->egl_surface != EGL_NO_SURFACE) {
GST_INFO ("surface created");
} else {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_FAILED,
"Failed to create window surface: %s",
gst_gl_context_egl_get_error_string ());
goto failure;
}
}
gst_object_unref (window);
return TRUE;
failure:
if (window)
gst_object_unref (window);
return FALSE;
}
static gboolean
gst_gl_context_egl_create_context (GstGLContext * context,
GstGLAPI gl_api, GstGLContext * other_context, GError ** error)
{
GstGLContextEGL *egl;
GstGLWindow *window = NULL;
EGLNativeWindowType window_handle = (EGLNativeWindowType) 0;
EGLint egl_major;
EGLint egl_minor;
gboolean need_surface = TRUE;
guintptr external_gl_context = 0;
guintptr egl_display;
egl = GST_GL_CONTEXT_EGL (context);
window = gst_gl_context_get_window (context);
GST_DEBUG_OBJECT (context, "Creating EGL context");
if (other_context) {
if (gst_gl_context_get_gl_platform (other_context) != GST_GL_PLATFORM_EGL) {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_WRONG_CONFIG,
"Cannot share context with non-EGL context");
goto failure;
}
external_gl_context = gst_gl_context_get_gl_context (other_context);
}
if ((gl_api & (GST_GL_API_OPENGL | GST_GL_API_OPENGL3 | GST_GL_API_GLES2)) ==
GST_GL_API_NONE) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_WRONG_API,
"EGL supports opengl or gles2");
goto failure;
}
if (!egl->display_egl) {
GstGLDisplay *display = gst_gl_context_get_display (context);
egl->display_egl = gst_gl_display_egl_from_gl_display (display);
if (!egl->display_egl) {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_RESOURCE_UNAVAILABLE,
"Failed to create EGLDisplay from native display");
goto failure;
}
gst_object_unref (display);
}
egl_display = gst_gl_display_get_handle (GST_GL_DISPLAY (egl->display_egl));
egl->egl_display = (EGLDisplay) egl_display;
if (eglInitialize (egl->egl_display, &egl_major, &egl_minor)) {
GST_INFO ("egl initialized, version: %d.%d", egl_major, egl_minor);
} else {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_RESOURCE_UNAVAILABLE,
"Failed to initialize egl: %s",
gst_egl_get_error_string (eglGetError ()));
goto failure;
}
egl->egl_exts = eglQueryString (egl->egl_display, EGL_EXTENSIONS);
if (gl_api & (GST_GL_API_OPENGL | GST_GL_API_OPENGL3)) {
GstGLAPI chosen_gl_api = 0;
gint i;
/* egl + opengl only available with EGL 1.4+ */
if (egl_major == 1 && egl_minor <= 3) {
if ((gl_api & ~GST_GL_API_OPENGL) == GST_GL_API_NONE) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_OLD_LIBS,
"EGL version (%i.%i) too old for OpenGL support, (needed at least 1.4)",
egl_major, egl_minor);
goto failure;
} else {
GST_WARNING
("EGL version (%i.%i) too old for OpenGL support, (needed at least 1.4)",
egl_major, egl_minor);
if (gl_api & GST_GL_API_GLES2) {
goto try_gles2;
} else {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_WRONG_CONFIG,
"Failed to choose a suitable OpenGL API");
goto failure;
}
}
}
if (!eglBindAPI (EGL_OPENGL_API)) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_FAILED,
"Failed to bind OpenGL API: %s",
gst_egl_get_error_string (eglGetError ()));
goto failure;
}
GST_INFO ("Bound OpenGL");
/* api, version only matters for gles */
if (!gst_gl_context_egl_choose_config (egl, GST_GL_API_OPENGL, 0, error)) {
g_assert (error == NULL || *error != NULL);
goto failure;
}
for (i = 0; i < G_N_ELEMENTS (opengl_versions); i++) {
gint profileMask = 0;
gint contextFlags = 0;
if (GST_GL_CHECK_GL_VERSION (opengl_versions[i].major,
opengl_versions[i].minor, 3, 2)) {
/* skip gl3 contexts if requested */
if ((gl_api & GST_GL_API_OPENGL3) == 0)
continue;
chosen_gl_api = GST_GL_API_OPENGL3;
#if defined(EGL_KHR_create_context)
profileMask |= EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR;
contextFlags |= EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
#endif
} else if (opengl_versions[i].major == 3 && opengl_versions[i].minor == 1) {
/* skip 3.1, the implementation is free to give us either a core or a
* compatibility context (we have no say) */
continue;
} else {
/* skip legacy contexts if requested */
if ((gl_api & GST_GL_API_OPENGL) == 0)
continue;
chosen_gl_api = GST_GL_API_OPENGL;
}
egl->egl_context =
_create_context_with_flags (egl, (EGLContext) external_gl_context,
chosen_gl_api, opengl_versions[i].major,
opengl_versions[i].minor, contextFlags, profileMask);
if (egl->egl_context)
break;
#if defined(EGL_KHR_create_context)
profileMask &= ~EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
egl->egl_context =
_create_context_with_flags (egl, (EGLContext) external_gl_context,
chosen_gl_api, opengl_versions[i].major,
opengl_versions[i].minor, contextFlags, profileMask);
if (egl->egl_context)
break;
#endif
}
egl->gl_api = chosen_gl_api;
} else if (gl_api & GST_GL_API_GLES2) {
gint i;
try_gles2:
if (!eglBindAPI (EGL_OPENGL_ES_API)) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_FAILED,
"Failed to bind OpenGL|ES API: %s",
gst_egl_get_error_string (eglGetError ()));
goto failure;
}
GST_INFO ("Bound OpenGL|ES");
for (i = 0; i < G_N_ELEMENTS (gles2_versions); i++) {
gint profileMask = 0;
gint contextFlags = 0;
if (!gst_gl_context_egl_choose_config (egl, GST_GL_API_GLES2,
gles2_versions[i].major, error)) {
continue;
}
#if defined(EGL_KHR_create_context)
/* try a debug context */
contextFlags |= EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
egl->egl_context =
_create_context_with_flags (egl, (EGLContext) external_gl_context,
GST_GL_API_GLES2, gles2_versions[i].major,
gles2_versions[i].minor, contextFlags, profileMask);
if (egl->egl_context)
break;
/* try without a debug context */
contextFlags &= ~EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
#endif
egl->egl_context =
_create_context_with_flags (egl, (EGLContext) external_gl_context,
GST_GL_API_GLES2, gles2_versions[i].major,
gles2_versions[i].minor, contextFlags, profileMask);
if (egl->egl_context)
break;
}
egl->gl_api = GST_GL_API_GLES2;
}
if (egl->egl_context != EGL_NO_CONTEXT) {
GST_INFO ("gl context created: %" G_GUINTPTR_FORMAT,
(guintptr) egl->egl_context);
} else {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_CREATE_CONTEXT,
"Failed to create a OpenGL context: %s",
gst_egl_get_error_string (eglGetError ()));
goto failure;
}
/* FIXME do we want a window vfunc ? */
#if GST_GL_HAVE_WINDOW_X11
if (GST_IS_GL_WINDOW_X11 (context->window)) {
gst_gl_window_x11_create_window ((GstGLWindowX11 *) context->window);
}
#endif
if (other_context == NULL) {
/* FIXME: fails to show two outputs at all. We need a property/option for
* glimagesink to say its a visible context */
#if GST_GL_HAVE_WINDOW_WAYLAND
if (GST_IS_GL_WINDOW_WAYLAND_EGL (context->window)) {
gst_gl_window_wayland_egl_create_window ((GstGLWindowWaylandEGL *)
context->window);
}
#endif
#if GST_GL_HAVE_WINDOW_WIN32
if (GST_IS_GL_WINDOW_WIN32 (context->window)) {
gst_gl_window_win32_create_window ((GstGLWindowWin32 *) context->window);
}
#endif
#if GST_GL_HAVE_WINDOW_DISPMANX
if (GST_IS_GL_WINDOW_DISPMANX_EGL (context->window)) {
gst_gl_window_dispmanx_egl_create_window ((GstGLWindowDispmanxEGL *)
context->window);
}
#endif
}
if (window)
window_handle =
(EGLNativeWindowType) gst_gl_window_get_window_handle (window);
if (window_handle) {
GST_DEBUG ("Creating EGLSurface from window_handle %p",
(void *) window_handle);
egl->egl_surface =
eglCreateWindowSurface (egl->egl_display, egl->egl_config,
window_handle, NULL);
/* Store window handle for later comparision */
egl->window_handle = window_handle;
} else if (!gst_gl_check_extension ("EGL_KHR_surfaceless_context",
egl->egl_exts)) {
EGLint surface_attrib[7];
gint j = 0;
GST_DEBUG ("Surfaceless context, creating PBufferSurface");
/* FIXME: Width/height doesn't seem to matter but we can't leave them
* at 0, otherwise X11 complains about BadValue */
surface_attrib[j++] = EGL_WIDTH;
surface_attrib[j++] = 1;
surface_attrib[j++] = EGL_HEIGHT;
surface_attrib[j++] = 1;
surface_attrib[j++] = EGL_LARGEST_PBUFFER;
surface_attrib[j++] = EGL_TRUE;
surface_attrib[j++] = EGL_NONE;
egl->egl_surface =
eglCreatePbufferSurface (egl->egl_display, egl->egl_config,
surface_attrib);
} else {
GST_DEBUG ("No surface/handle !");
egl->egl_surface = EGL_NO_SURFACE;
need_surface = FALSE;
}
if (need_surface) {
if (egl->egl_surface != EGL_NO_SURFACE) {
GST_INFO ("surface created");
} else {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_FAILED,
"Failed to create window surface: %s",
gst_egl_get_error_string (eglGetError ()));
goto failure;
}
}
egl->egl_major = egl_major;
egl->egl_minor = egl_minor;
if (window)
gst_object_unref (window);
return TRUE;
failure:
if (window)
gst_object_unref (window);
return FALSE;
}
static gboolean
gst_gl_context_egl_create_context (GstGLContext * context,
GstGLAPI gl_api, GstGLContext * other_context, GError ** error)
{
GstGLContextEGL *egl;
GstGLWindow *window = NULL;
EGLNativeWindowType window_handle = (EGLNativeWindowType) 0;
gint i = 0;
EGLint context_attrib[5];
EGLint majorVersion;
EGLint minorVersion;
const gchar *egl_exts;
gboolean need_surface = TRUE;
guintptr external_gl_context = 0;
GstGLDisplay *display;
egl = GST_GL_CONTEXT_EGL (context);
window = gst_gl_context_get_window (context);
if (other_context) {
if (gst_gl_context_get_gl_platform (other_context) != GST_GL_PLATFORM_EGL) {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_WRONG_CONFIG,
"Cannot share context with non-EGL context");
goto failure;
}
external_gl_context = gst_gl_context_get_gl_context (other_context);
}
if ((gl_api & (GST_GL_API_OPENGL | GST_GL_API_GLES2)) == GST_GL_API_NONE) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_WRONG_API,
"EGL supports opengl or gles2");
goto failure;
}
display = gst_gl_context_get_display (context);
if (display->type == GST_GL_DISPLAY_TYPE_EGL) {
egl->egl_display = (EGLDisplay) gst_gl_display_get_handle (display);
} else {
guintptr native_display = gst_gl_display_get_handle (display);
if (!native_display) {
GstGLWindow *window = NULL;
GST_WARNING ("Failed to get a global display handle, falling back to "
"per-window display handles. Context sharing may not work");
if (other_context)
window = gst_gl_context_get_window (other_context);
if (!window)
window = gst_gl_context_get_window (context);
if (window) {
native_display = gst_gl_window_get_display (window);
gst_object_unref (window);
}
}
egl->egl_display = eglGetDisplay ((EGLNativeDisplayType) native_display);
}
gst_object_unref (display);
if (eglInitialize (egl->egl_display, &majorVersion, &minorVersion)) {
GST_INFO ("egl initialized, version: %d.%d", majorVersion, minorVersion);
} else {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_RESOURCE_UNAVAILABLE,
"Failed to initialize egl: %s", gst_gl_context_egl_get_error_string ());
goto failure;
}
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_CONTEXT_ERROR, GST_GL_CONTEXT_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 {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_WRONG_CONFIG,
"Failed to choose a suitable OpenGL API");
goto failure;
}
}
}
if (!eglBindAPI (EGL_OPENGL_API)) {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_FAILED,
"Failed to bind OpenGL API: %s",
gst_gl_context_egl_get_error_string ());
goto failure;
}
GST_INFO ("Using OpenGL");
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_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_FAILED,
"Failed to bind OpenGL|ES API: %s",
gst_gl_context_egl_get_error_string ());
goto failure;
}
GST_INFO ("Using OpenGL|ES 2.0");
egl->gl_api = GST_GL_API_GLES2;
}
if (!gst_gl_context_egl_choose_config (egl, other_context, error)) {
g_assert (error == NULL || *error != NULL);
goto failure;
}
egl_exts = eglQueryString (egl->egl_display, EGL_EXTENSIONS);
GST_DEBUG ("about to create gl context\n");
if (egl->gl_api & GST_GL_API_GLES2) {
context_attrib[i++] = EGL_CONTEXT_CLIENT_VERSION;
context_attrib[i++] = 2;
}
#if !defined(GST_DISABLE_GST_DEBUG) && defined(EGL_KHR_create_context)
if (gst_gl_check_extension ("EGL_KHR_create_context", egl_exts)) {
context_attrib[i++] = EGL_CONTEXT_FLAGS_KHR;
context_attrib[i++] = EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
}
#endif
context_attrib[i++] = EGL_NONE;
egl->egl_context =
eglCreateContext (egl->egl_display, egl->egl_config,
(EGLContext) external_gl_context, context_attrib);
#ifdef EGL_KHR_create_context
if (egl->egl_context == EGL_NO_CONTEXT && egl->gl_api & GST_GL_API_GLES2
&& eglGetError () != EGL_SUCCESS) {
/* try without EGL_CONTEXT_FLAGS flags as it was added to
* EGL_KHR_create_context for gles contexts */
int i;
for (i = 0; i < G_N_ELEMENTS (context_attrib); i++) {
if (context_attrib[i] == EGL_CONTEXT_FLAGS_KHR ||
context_attrib[i] == EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR)
context_attrib[i] = EGL_NONE;
}
egl->egl_context =
eglCreateContext (egl->egl_display, egl->egl_config,
(EGLContext) external_gl_context, context_attrib);
}
#endif
if (egl->egl_context != EGL_NO_CONTEXT) {
GST_INFO ("gl context created: %" G_GUINTPTR_FORMAT,
(guintptr) egl->egl_context);
} else {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_CREATE_CONTEXT,
"Failed to create a OpenGL context: %s",
gst_gl_context_egl_get_error_string ());
goto failure;
}
if (other_context == NULL) {
/* FIXME do we want a window vfunc ? */
#if GST_GL_HAVE_WINDOW_X11
if (GST_GL_IS_WINDOW_X11 (context->window)) {
gst_gl_window_x11_create_window ((GstGLWindowX11 *) context->window);
}
#endif
#if GST_GL_HAVE_WINDOW_WIN32
if (GST_GL_IS_WINDOW_WIN32 (context->window)) {
gst_gl_window_win32_create_window ((GstGLWindowWin32 *) context->window);
}
#endif
}
if (window)
window_handle =
(EGLNativeWindowType) gst_gl_window_get_window_handle (window);
if (window_handle) {
egl->egl_surface =
eglCreateWindowSurface (egl->egl_display, egl->egl_config,
window_handle, NULL);
} else if (!gst_gl_check_extension ("EGL_KHR_surfaceless_context", egl_exts)) {
EGLint surface_attrib[7];
gint j = 0;
/* FIXME: Width/height doesn't seem to matter but we can't leave them
* at 0, otherwise X11 complains about BadValue */
surface_attrib[j++] = EGL_WIDTH;
surface_attrib[j++] = 1;
surface_attrib[j++] = EGL_HEIGHT;
surface_attrib[j++] = 1;
surface_attrib[j++] = EGL_LARGEST_PBUFFER;
surface_attrib[j++] = EGL_TRUE;
surface_attrib[j++] = EGL_NONE;
egl->egl_surface =
eglCreatePbufferSurface (egl->egl_display, egl->egl_config,
surface_attrib);
} else {
egl->egl_surface = EGL_NO_SURFACE;
need_surface = FALSE;
}
if (need_surface) {
if (egl->egl_surface != EGL_NO_SURFACE) {
GST_INFO ("surface created");
} else {
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_FAILED,
"Failed to create window surface: %s",
gst_gl_context_egl_get_error_string ());
goto failure;
}
}
/* EGLImage functions */
if (GST_GL_CHECK_GL_VERSION (majorVersion, minorVersion, 1, 5)) {
egl->eglCreateImage = gst_gl_context_get_proc_address (context,
"eglCreateImage");
egl->eglDestroyImage = gst_gl_context_get_proc_address (context,
"eglDestroyImage");
} else if (gst_gl_check_extension ("EGL_KHR_image_base", egl_exts)) {
egl->eglCreateImage = gst_gl_context_get_proc_address (context,
"eglCreateImageKHR");
egl->eglDestroyImage = gst_gl_context_get_proc_address (context,
"eglDestroyImageKHR");
}
if (egl->eglCreateImage == NULL || egl->eglDestroyImage == NULL) {
egl->eglCreateImage = NULL;
egl->eglDestroyImage = NULL;
}
if (window)
gst_object_unref (window);
return TRUE;
failure:
if (window)
gst_object_unref (window);
return FALSE;
}
gpointer
gst_gl_context_egl_get_proc_address (GstGLAPI gl_api, const gchar * name)
{
gpointer result = NULL;
static GOnce g_once = G_ONCE_INIT;
#ifdef __APPLE__
#if GST_GL_HAVE_OPENGL && !defined(GST_GL_LIBGL_MODULE_NAME)
if (!result && (gl_api & (GST_GL_API_OPENGL | GST_GL_API_OPENGL3))) {
static GModule *module_opengl = NULL;
if (g_once_init_enter (&module_opengl)) {
GModule *setup_module_opengl =
g_module_open ("libGL.dylib", G_MODULE_BIND_LAZY);
g_once_init_leave (&module_opengl, setup_module_opengl);
}
if (module_opengl)
g_module_symbol (module_opengl, name, &result);
}
#endif
#if GST_GL_HAVE_GLES2 && !defined(GST_GL_LIBGLESV2_MODULE_NAME)
if (!result && (gl_api & (GST_GL_API_GLES2))) {
static GModule *module_gles2 = NULL;
if (g_once_init_enter (&module_gles2)) {
GModule *setup_module_gles2 =
g_module_open ("libGLESv2.dylib", G_MODULE_BIND_LAZY);
g_once_init_leave (&module_gles2, setup_module_gles2);
}
if (module_gles2)
g_module_symbol (module_gles2, name, &result);
}
#endif
#endif // __APPLE__
if (!result)
result = gst_gl_context_default_get_proc_address (gl_api, name);
g_once (&g_once, load_egl_module, NULL);
if (!result && module_egl) {
g_module_symbol (module_egl, name, &result);
}
/* FIXME: On Android this returns wrong addresses for non-EGL functions */
#if GST_GL_HAVE_WINDOW_ANDROID
if (!result && g_str_has_prefix (name, "egl")) {
#else
if (!result) {
result = eglGetProcAddress (name);
#endif
}
return result;
}
static gboolean
gst_gl_context_egl_check_feature (GstGLContext * context, const gchar * feature)
{
GstGLContextEGL *context_egl = GST_GL_CONTEXT_EGL (context);
return gst_gl_check_extension (feature, context_egl->egl_exts);
}
