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gl/eglimage: add eglimage context feature

Browse source 
Allows us to selectively use EGLImages only when available

https://bugzilla.gnome.org/show_bug.cgi?id=728234
This commit is contained in:
Matthew Waters 2014-05-14 17:59:52 +10:00 committed by Tim-Philipp Müller
parent 166d7b505c
commit 51fdeef98b
5 changed files with 72 additions and 17 deletions
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9
ext/gl/gstglimagesink.c
View file

@ -933,9 +933,12 @@ gst_glimage_sink_propose_allocation (GstBaseSink * bsink, GstQuery * query)
gst_object_unref (allocator);
#if GST_GL_HAVE_PLATFORM_EGL
allocator = gst_allocator_find (GST_EGL_IMAGE_MEMORY_TYPE);
gst_query_add_allocation_param (query, allocator, &params);
gst_object_unref (allocator);
if (gst_gl_context_check_feature (glimage_sink->context,
"EGL_KHR_image_base")) {
allocator = gst_allocator_find (GST_EGL_IMAGE_MEMORY_TYPE);
gst_query_add_allocation_param (query, allocator, &params);
gst_object_unref (allocator);
}
#endif
return TRUE;

34
gst-libs/gst/gl/egl/gsteglimagememory.c
View file

@ -122,7 +122,7 @@ gst_egl_image_allocator_free_vfunc (GstAllocator * allocator, GstMemory * mem)
/* Shared memory should not destroy all the data */
if (!mem->parent) {
eglDestroyImageKHR (emem->context->egl_display, emem->image);
emem->context->eglDestroyImage (emem->context->egl_display, emem->image);
if (emem->user_data_destroy)
emem->user_data_destroy (emem->context, emem->user_data);
@ -163,8 +163,18 @@ gst_egl_image_mem_is_span (GstMemory * mem1, GstMemory * mem2, gsize * offset)
return FALSE;
}
typedef GstAllocator GstEGLImageAllocator;
typedef GstAllocatorClass GstEGLImageAllocatorClass;
typedef struct _GstEGLImageAllocator GstEGLImageAllocator;
typedef struct _GstEGLImageAllocatorClass GstEGLImageAllocatorClass;
struct _GstEGLImageAllocator
{
GstAllocator parent;
};
struct _GstEGLImageAllocatorClass
{
GstAllocatorClass parent_class;
};
GType gst_egl_image_allocator_get_type (void);
G_DEFINE_TYPE (GstEGLImageAllocator, gst_egl_image_allocator,
@ -212,7 +222,7 @@ gst_egl_image_allocator_init_instance (gpointer data)
return allocator;
}
static GstAllocator *
static GstEGLImageAllocator *
gst_egl_image_allocator_obtain (void)
{
static GOnce once = G_ONCE_INIT;
@ -221,7 +231,7 @@ gst_egl_image_allocator_obtain (void)
g_return_val_if_fail (once.retval != NULL, NULL);
return GST_ALLOCATOR (g_object_ref (once.retval));
return (GstEGLImageAllocator *) (g_object_ref (once.retval));
}
void
@ -239,7 +249,7 @@ gst_egl_image_memory_del_gl_texture (GstGLContext * context, gpointer tex)
}
static GstMemory *
gst_egl_image_allocator_wrap (GstAllocator * allocator,
gst_egl_image_allocator_wrap (GstEGLImageAllocator * allocator,
GstGLContextEGL * context, EGLImageKHR image, GstVideoGLTextureType type,
GstMemoryFlags flags, gsize size, gpointer user_data,
GstEGLImageDestroyNotify user_data_destroy)
@ -255,7 +265,7 @@ gst_egl_image_allocator_wrap (GstAllocator * allocator,
mem = g_slice_new (GstEGLImageMemory);
gst_memory_init (GST_MEMORY_CAST (mem), flags,
allocator, NULL, size, 0, 0, size);
GST_ALLOCATOR (allocator), NULL, size, 0, 0, size);
gst_object_unref (allocator);
@ -339,12 +349,14 @@ gst_egl_image_memory_setup_buffer (GstGLContext * ctx, GstVideoInfo * info,
EGLImageKHR image = EGL_NO_IMAGE_KHR;
EGLClientBuffer client_buffer_tex[3] = { 0, 0, 0 };
GstVideoGLTextureType texture_types[] = { 0, 0, 0, 0 };
GstAllocator *allocator = gst_egl_image_allocator_obtain ();
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));
@ -408,7 +420,7 @@ gst_egl_image_memory_setup_buffer (GstGLContext * ctx, GstVideoInfo * info,
gst_gl_generate_texture_full (GST_GL_CONTEXT (context), info, 0, stride,
offset, &size, (GLuint *) & client_buffer_tex[0]);
image = eglCreateImageKHR (context->egl_display,
image = context->eglCreateImage (context->egl_display,
context->egl_context, EGL_GL_TEXTURE_2D_KHR, client_buffer_tex[0],
NULL);
if (eglGetError () != EGL_SUCCESS)
@ -461,7 +473,7 @@ gst_egl_image_memory_setup_buffer (GstGLContext * ctx, GstVideoInfo * info,
gst_gl_generate_texture_full (GST_GL_CONTEXT (context), info, 0,
stride, offset, size, (GLuint *) & client_buffer_tex[i]);
image = eglCreateImageKHR (context->egl_display,
image = context->eglCreateImage (context->egl_display,
context->egl_context, EGL_GL_TEXTURE_2D_KHR, client_buffer_tex[i],
NULL);
if (eglGetError () != EGL_SUCCESS)
@ -527,7 +539,7 @@ gst_egl_image_memory_setup_buffer (GstGLContext * ctx, GstVideoInfo * info,
gst_gl_generate_texture_full (GST_GL_CONTEXT (context), info, i,
stride, offset, size, (GLuint *) & client_buffer_tex[i]);
image = eglCreateImageKHR (context->egl_display,
image = context->eglCreateImage (context->egl_display,
context->egl_context, EGL_GL_TEXTURE_2D_KHR, client_buffer_tex[i],
NULL);
if (eglGetError () != EGL_SUCCESS)

34
gst-libs/gst/gl/egl/gstglcontext_egl.c
View file

@ -53,6 +53,8 @@ static GstGLPlatform gst_gl_context_egl_get_gl_platform (GstGLContext *
context);
static gpointer gst_gl_context_egl_get_proc_address (GstGLContext * context,
const gchar * name);
static gboolean gst_gl_context_egl_check_feature (GstGLContext * context,
const gchar * feature);
G_DEFINE_TYPE (GstGLContextEGL, gst_gl_context_egl, GST_GL_TYPE_CONTEXT);
@ -78,6 +80,8 @@ gst_gl_context_egl_class_init (GstGLContextEGLClass * klass)
GST_DEBUG_FUNCPTR (gst_gl_context_egl_get_gl_platform);
context_class->get_proc_address =
GST_DEBUG_FUNCPTR (gst_gl_context_egl_get_proc_address);
context_class->check_feature =
GST_DEBUG_FUNCPTR (gst_gl_context_egl_check_feature);
}
static void
@ -404,6 +408,23 @@ gst_gl_context_egl_create_context (GstGLContext * context,
}
}
/* 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);
@ -525,3 +546,16 @@ gst_gl_context_egl_get_proc_address (GstGLContext * context, const gchar * name)
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;
}

4
gst-libs/gst/gl/egl/gstglcontext_egl.h
View file

@ -45,6 +45,10 @@ struct _GstGLContextEGL {
EGLConfig egl_config;
GstGLAPI gl_api;
EGLImageKHR (*eglCreateImage) (EGLDisplay dpy, EGLContext ctx, EGLenum target,
EGLClientBuffer buffer, const EGLint *attrib_list);
EGLBoolean (*eglDestroyImage) (EGLDisplay dpy, EGLImageKHR image);
};
struct _GstGLContextEGLClass {

8
gst-libs/gst/gl/gstglfilter.c
View file

@ -890,9 +890,11 @@ gst_gl_filter_propose_allocation (GstBaseTransform * trans,
gst_object_unref (allocator);
#if GST_GL_HAVE_PLATFORM_EGL
allocator = gst_allocator_find (GST_EGL_IMAGE_MEMORY_TYPE);
gst_query_add_allocation_param (query, allocator, &params);
gst_object_unref (allocator);
if (gst_gl_context_check_feature (filter->context, "EGL_KHR_image_base")) {
allocator = gst_allocator_find (GST_EGL_IMAGE_MEMORY_TYPE);
gst_query_add_allocation_param (query, allocator, &params);
gst_object_unref (allocator);
}
#endif
return TRUE;