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gl: add EGLImage support

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* picked from old libgstegl:
  - GstEGLImageMemory
  - GstEGLImageAllocator
  - last_buffer management from removed GstEGLImageBufferPool

* add-ons:
  - GstEGLImageMemory now old a reference on GstGLContext
    so that it can delete the EGLImage and its gltexture source
    while having the associated gl context being current.
  - add EGLImage support for GstVideoGLTextureUploadMeta which
    mainly call EGLImageTargetTexture2D
  - GstGLBufferPool now supports GstEGLImageAllocator
  - glimagesink / glfilters / etc.. now propose GstEGLImageAllocator
    to upstream

https://bugzilla.gnome.org/show_bug.cgi?id=703343
This commit is contained in:
Julien Isorce 2014-03-22 22:01:49 +00:00
parent 6d10548e7f
commit 0ae3c984aa
17 changed files with 977 additions and 62 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
ext/gl/gstglimagesink.c
View file

@ -169,7 +169,9 @@ static GstStaticPadTemplate gst_glimage_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (GST_GL_UPLOAD_FORMATS) "; "
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_EGL_IMAGE,
"RGBA") "; " GST_VIDEO_CAPS_MAKE (GST_GL_UPLOAD_FORMATS) "; "
GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META,
GST_GL_UPLOAD_FORMATS))
@ -863,6 +865,8 @@ gst_glimage_sink_propose_allocation (GstBaseSink * bsink, GstQuery * query)
GstStructure *gl_context;
gchar *platform, *gl_apis;
gpointer handle;
GstAllocator *allocator = NULL;
GstAllocationParams params;
if (!_ensure_gl_setup (glimage_sink))
return FALSE;
@ -936,6 +940,18 @@ gst_glimage_sink_propose_allocation (GstBaseSink * bsink, GstQuery * query)
g_free (platform);
gst_structure_free (gl_context);
gst_allocation_params_init (&params);
allocator = gst_allocator_find (GST_GL_MEMORY_ALLOCATOR);
gst_query_add_allocation_param (query, allocator, &params);
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);
#endif
return TRUE;
/* ERRORS */

8
gst-libs/gst/gl/egl/Makefile.am
View file

@ -4,16 +4,16 @@ noinst_LTLIBRARIES = libgstgl-egl.la
libgstgl_egl_la_SOURCES = \
gstgldisplay_egl.c \
gstglcontext_egl.c
gstglcontext_egl.c \
gsteglimagememory.c
noinst_HEADERS = \
gstglcontext_egl.h
libgstgl_eglincludedir = $(includedir)/gstreamer-@GST_API_VERSION@/gst/gl/egl
libgstgl_eglinclude_HEADERS = \
gstgldisplay_egl.h
libgstgl_egl_la_LIBADD = $(top_builddir)/gst-libs/gst/egl/libgstegl-$(GST_API_VERSION).la
gstgldisplay_egl.h \
gsteglimagememory.h
libgstgl_egl_la_CFLAGS = \
-I$(top_srcdir)/gst-libs \

568
gst-libs/gst/gl/egl/gsteglimagememory.c Normal file
View file

@ -0,0 +1,568 @@
/*
* GStreamer
* Copyright (C) 2012 Collabora Ltd.
* @author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
* Copyright (C) 2014 Julien Isorce <julien.isorce@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gsteglimagememory.h"
#include "gstglcontext_egl.h"
GST_DEBUG_CATEGORY_STATIC (GST_CAT_EGL_IMAGE_MEMORY);
#define GST_CAT_DEFAULT GST_CAT_EGL_IMAGE_MEMORY
typedef void (*GstEGLImageDestroyNotify) (GstGLContextEGL * context,
gpointer data);
typedef struct
{
GstMemory parent;
GstGLContextEGL *context;
EGLImageKHR image;
GstVideoGLTextureType type;
GstVideoGLTextureOrientation orientation;
gpointer user_data;
GstEGLImageDestroyNotify user_data_destroy;
} GstEGLImageMemory;
#define GST_EGL_IMAGE_MEMORY(mem) ((GstEGLImageMemory*)(mem))
gboolean
gst_is_egl_image_memory (GstMemory * mem)
{
g_return_val_if_fail (mem != NULL, FALSE);
g_return_val_if_fail (mem->allocator != NULL, FALSE);
return g_strcmp0 (mem->allocator->mem_type, GST_EGL_IMAGE_MEMORY_TYPE) == 0;
}
EGLImageKHR
gst_egl_image_memory_get_image (GstMemory * mem)
{
g_return_val_if_fail (gst_is_egl_image_memory (mem), EGL_NO_IMAGE_KHR);
if (mem->parent)
mem = mem->parent;
return GST_EGL_IMAGE_MEMORY (mem)->image;
}
EGLDisplay
gst_egl_image_memory_get_display (GstMemory * mem)
{
g_return_val_if_fail (gst_is_egl_image_memory (mem), NULL);
if (mem->parent)
mem = mem->parent;
return GST_EGL_IMAGE_MEMORY (mem)->context->egl_display;
}
GstVideoGLTextureOrientation
gst_egl_image_memory_get_orientation (GstMemory * mem)
{
g_return_val_if_fail (gst_is_egl_image_memory (mem),
GST_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_NORMAL);
if (mem->parent)
mem = mem->parent;
return GST_EGL_IMAGE_MEMORY (mem)->orientation;
}
void
gst_egl_image_memory_set_orientation (GstMemory * mem,
GstVideoGLTextureOrientation orientation)
{
g_return_if_fail (gst_is_egl_image_memory (mem));
if (mem->parent)
mem = mem->parent;
GST_EGL_IMAGE_MEMORY (mem)->orientation = orientation;
}
static GstMemory *
gst_egl_image_allocator_alloc_vfunc (GstAllocator * allocator, gsize size,
GstAllocationParams * params)
{
g_warning
("Use gst_egl_image_allocator_alloc() to allocate from this allocator");
return NULL;
}
static void
gst_egl_image_allocator_free_vfunc (GstAllocator * allocator, GstMemory * mem)
{
GstEGLImageMemory *emem = (GstEGLImageMemory *) mem;
g_return_if_fail (gst_is_egl_image_memory (mem));
/* Shared memory should not destroy all the data */
if (!mem->parent) {
eglDestroyImageKHR (emem->context->egl_display, emem->image);
if (emem->user_data_destroy)
emem->user_data_destroy (emem->context, emem->user_data);
gst_object_unref (emem->context);
emem->context = NULL;
}
g_slice_free (GstEGLImageMemory, emem);
}
static gpointer
gst_egl_image_mem_map (GstMemory * mem, gsize maxsize, GstMapFlags flags)
{
return NULL;
}
static void
gst_egl_image_mem_unmap (GstMemory * mem)
{
}
static GstMemory *
gst_egl_image_mem_share (GstMemory * mem, gssize offset, gssize size)
{
return NULL;
}
static GstMemory *
gst_egl_image_mem_copy (GstMemory * mem, gssize offset, gssize size)
{
return NULL;
}
static gboolean
gst_egl_image_mem_is_span (GstMemory * mem1, GstMemory * mem2, gsize * offset)
{
return FALSE;
}
typedef GstAllocator GstEGLImageAllocator;
typedef GstAllocatorClass GstEGLImageAllocatorClass;
GType gst_egl_image_allocator_get_type (void);
G_DEFINE_TYPE (GstEGLImageAllocator, gst_egl_image_allocator,
GST_TYPE_ALLOCATOR);
#define GST_TYPE_EGL_IMAGE_ALLOCATOR (gst_egl_image_mem_allocator_get_type())
#define GST_IS_EGL_IMAGE_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_EGL_IMAGE_ALLOCATOR))
static void
gst_egl_image_allocator_class_init (GstEGLImageAllocatorClass * klass)
{
GstAllocatorClass *allocator_class = (GstAllocatorClass *) klass;
allocator_class->alloc = gst_egl_image_allocator_alloc_vfunc;
allocator_class->free = gst_egl_image_allocator_free_vfunc;
}
static void
gst_egl_image_allocator_init (GstEGLImageAllocator * allocator)
{
GstAllocator *alloc = GST_ALLOCATOR_CAST (allocator);
alloc->mem_type = GST_EGL_IMAGE_MEMORY_TYPE;
alloc->mem_map = gst_egl_image_mem_map;
alloc->mem_unmap = gst_egl_image_mem_unmap;
alloc->mem_share = gst_egl_image_mem_share;
alloc->mem_copy = gst_egl_image_mem_copy;
alloc->mem_is_span = gst_egl_image_mem_is_span;
GST_OBJECT_FLAG_SET (allocator, GST_ALLOCATOR_FLAG_CUSTOM_ALLOC);
}
static gpointer
gst_egl_image_allocator_init_instance (gpointer data)
{
GstAllocator *allocator =
g_object_new (gst_egl_image_allocator_get_type (), NULL);;
GST_DEBUG_CATEGORY_INIT (GST_CAT_EGL_IMAGE_MEMORY, "eglimagememory", 0,
"EGLImage Memory");
gst_allocator_register (GST_EGL_IMAGE_MEMORY_TYPE,
gst_object_ref (allocator));
return allocator;
}
static GstAllocator *
gst_egl_image_allocator_obtain (void)
{
static GOnce once = G_ONCE_INIT;
g_once (&once, gst_egl_image_allocator_init_instance, NULL);
g_return_val_if_fail (once.retval != NULL, NULL);
return GST_ALLOCATOR (g_object_ref (once.retval));
}
void
gst_egl_image_memory_init (void)
{
gst_egl_image_allocator_obtain ();
}
static void
gst_egl_image_memory_del_gl_texture (GstGLContext * context, gpointer tex)
{
GLuint textures[1] = { GPOINTER_TO_UINT (tex) };
gst_gl_context_del_texture (context, textures);
}
static GstMemory *
gst_egl_image_allocator_wrap (GstAllocator * allocator,
GstGLContextEGL * context, EGLImageKHR image, GstVideoGLTextureType type,
GstMemoryFlags flags, gsize size, gpointer user_data,
GstEGLImageDestroyNotify user_data_destroy)
{
GstEGLImageMemory *mem = NULL;
g_return_val_if_fail (context != NULL, NULL);
g_return_val_if_fail (image != EGL_NO_IMAGE_KHR, NULL);
if (!allocator) {
allocator = gst_egl_image_allocator_obtain ();
}
mem = g_slice_new (GstEGLImageMemory);
gst_memory_init (GST_MEMORY_CAST (mem), flags,
allocator, NULL, size, 0, 0, size);
gst_object_unref (allocator);
mem->context = gst_object_ref (context);
mem->image = image;
mem->type = type;
mem->orientation = GST_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_NORMAL;
mem->user_data = user_data;
mem->user_data_destroy = user_data_destroy;
return GST_MEMORY_CAST (mem);
}
static GstMemory *
gst_egl_image_allocator_alloc (GstAllocator * allocator,
GstGLContextEGL * context, GstVideoGLTextureType type, gint width,
gint height, gsize size)
{
/* EGL_NO_CONTEXT */
return NULL;
}
static gboolean
gst_eglimage_to_gl_texture_upload_meta (GstVideoGLTextureUploadMeta *
meta, guint texture_id[4])
{
gint i = 0;
gint n = 0;
g_return_val_if_fail (meta != NULL, FALSE);
g_return_val_if_fail (texture_id != NULL, FALSE);
GST_DEBUG ("Uploading for meta with textures %i,%i,%i,%i", texture_id[0],
texture_id[1], texture_id[2], texture_id[3]);
n = gst_buffer_n_memory (meta->buffer);
for (i = 0; i < n; i++) {
GstMemory *mem = gst_buffer_peek_memory (meta->buffer, i);
const GstGLFuncs *gl = NULL;
if (!gst_is_egl_image_memory (mem)) {
GST_WARNING ("memory %p does not hold an EGLImage", mem);
return FALSE;
}
gl = GST_GL_CONTEXT (GST_EGL_IMAGE_MEMORY (mem)->context)->gl_vtable;
if (i == 0)
gl->ActiveTexture (GL_TEXTURE0);
else if (i == 1)
gl->ActiveTexture (GL_TEXTURE1);
else if (i == 2)
gl->ActiveTexture (GL_TEXTURE2);
gl->BindTexture (GL_TEXTURE_2D, texture_id[i]);
gl->EGLImageTargetTexture2D (GL_TEXTURE_2D,
gst_egl_image_memory_get_image (mem));
}
if (GST_IS_GL_BUFFER_POOL (meta->buffer->pool))
gst_gl_buffer_pool_replace_last_buffer (GST_GL_BUFFER_POOL (meta->
buffer->pool), meta->buffer);
return TRUE;
}
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 };
GstAllocator *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);
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;
}
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 {
gst_gl_generate_texture_full (GST_GL_CONTEXT (context), info, 0, stride,
offset, &size, (GLuint *) & client_buffer_tex[0]);
image = eglCreateImageKHR (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;
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;
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 = eglCreateImageKHR (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;
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;
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 = eglCreateImageKHR (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_ERROR_OBJECT (GST_CAT_DEFAULT, "Failed to create EGLImage");
for (i = 0; i < n_mem; 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;
}
}

50
gst-libs/gst/gl/egl/gsteglimagememory.h Normal file
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@ -0,0 +1,50 @@
/*
* GStreamer
* Copyright (C) 2012 Collabora Ltd.
* @author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
* Copyright (C) 2014 Julien Isorce <julien.isorce@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef _GST_EGL_IMAGE_MEMORY_H_
#define _GST_EGL_IMAGE_MEMORY_H_
#include <gst/gst.h>
#include <gst/gstallocator.h>
#include <gst/gstmemory.h>
#include <gst/video/video.h>
#include <gst/gl/gl.h>
G_BEGIN_DECLS
#define GST_EGL_IMAGE_MEMORY_TYPE "EGLImage"
#define GST_CAPS_FEATURE_MEMORY_EGL_IMAGE "memory:EGLImage"
void gst_egl_image_memory_init (void);
gboolean gst_egl_image_memory_setup_buffer (GstGLContext * context, GstVideoInfo * info, GstBuffer * buffer);
gboolean gst_is_egl_image_memory (GstMemory * mem);
EGLImageKHR gst_egl_image_memory_get_image (GstMemory * mem);
EGLDisplay gst_egl_image_memory_get_display (GstMemory * mem);
GstVideoGLTextureOrientation gst_egl_image_memory_get_orientation (GstMemory * mem);
void gst_egl_image_memory_set_orientation (GstMemory * mem,
GstVideoGLTextureOrientation orientation);
G_END_DECLS
#endif /* _GST_GL_MEMORY_H_ */

5
gst-libs/gst/gl/egl/gstglcontext_egl.h
View file

@ -54,6 +54,11 @@ struct _GstGLContextEGLClass {
GType gst_gl_context_egl_get_type (void);
GstGLContextEGL * gst_gl_context_egl_new (void);
/* TODO:
* add support for EGL_NO_CONTEXT
* add gst_gl_context_egl_new_gl_no_context that only manages the display
* add gst_gl_context_egl_is_gl_no_context () */
G_END_DECLS
#endif /* __GST_GL_EGL_H__ */

36
gst-libs/gst/gl/egl/gstgldisplay_egl.c
View file

@ -23,6 +23,7 @@
#endif
#include <gst/gl/egl/gstgldisplay_egl.h>
#include <gst/gl/egl/gsteglimagememory.h>
GST_DEBUG_CATEGORY_STATIC (gst_gl_display_debug);
#define GST_CAT_DEFAULT gst_gl_display_debug
@ -48,6 +49,8 @@ gst_gl_display_egl_init (GstGLDisplayEGL * display_egl)
display->type = GST_GL_DISPLAY_TYPE_EGL;
display_egl->foreign_display = FALSE;
gst_egl_image_memory_init ();
}
static void
@ -55,10 +58,7 @@ gst_gl_display_egl_finalize (GObject * object)
{
GstGLDisplayEGL *display_egl = GST_GL_DISPLAY_EGL (object);
if (display_egl->gst_display) {
gst_egl_display_unref (display_egl->gst_display);
display_egl->gst_display = NULL;
} else if (display_egl->display && !display_egl->foreign_display) {
if (display_egl->display && !display_egl->foreign_display) {
eglTerminate (display_egl->display);
display_egl->display = NULL;
}
@ -101,7 +101,7 @@ gst_gl_display_egl_new (void)
* Returns: (transfer full): a new #GstGLDisplayEGL
*/
GstGLDisplayEGL *
gst_gl_display_egl_new_with_egl_display (EGLDisplay * display)
gst_gl_display_egl_new_with_egl_display (EGLDisplay display)
{
GstGLDisplayEGL *ret;
@ -117,32 +117,6 @@ gst_gl_display_egl_new_with_egl_display (EGLDisplay * display)
return ret;
}
/**
* gst_gl_display_egl_new_with_display:
* @display: an existing, x11 display
*
* Creates a new display connection from a X11 Display.
*
* Returns: (transfer full): a new #GstGLDisplayEGL
*/
GstGLDisplayEGL *
gst_gl_display_egl_new_with_gst_egl_display (GstEGLDisplay * display)
{
GstGLDisplayEGL *ret;
g_return_val_if_fail (display != NULL, NULL);
GST_DEBUG_CATEGORY_GET (gst_gl_display_debug, "gldisplay");
ret = g_object_new (GST_TYPE_GL_DISPLAY_EGL, NULL);
ret->gst_display = gst_egl_display_ref (display);
ret->display = gst_egl_display_get (display);
ret->foreign_display = TRUE;
return ret;
}
static guintptr
gst_gl_display_egl_get_handle (GstGLDisplay * display)
{

11
gst-libs/gst/gl/egl/gstgldisplay_egl.h
View file

@ -22,10 +22,7 @@
#define __GST_GL_DISPLAY_EGL_H__
#include <gst/gst.h>
#include <gst/gl/gl.h>
/* FIXME temp until merge */
#include <gst/egl/egl.h>
#include <gst/gl/gstgldisplay.h>
G_BEGIN_DECLS
@ -52,8 +49,7 @@ struct _GstGLDisplayEGL
GstGLDisplay parent;
/* <private> */
GstEGLDisplay *gst_display;
EGLDisplay *display;
EGLDisplay display;
gboolean foreign_display;
};
@ -64,8 +60,7 @@ struct _GstGLDisplayEGLClass
};
GstGLDisplayEGL *gst_gl_display_egl_new (void);
GstGLDisplayEGL *gst_gl_display_egl_new_with_egl_display (EGLDisplay *display);
GstGLDisplayEGL *gst_gl_display_egl_new_with_gst_egl_display (GstEGLDisplay *display);
GstGLDisplayEGL *gst_gl_display_egl_new_with_egl_display (EGLDisplay display);
G_END_DECLS

5
gst-libs/gst/gl/gl.h
View file

@ -39,4 +39,9 @@
#include <gst/gl/gstglmixer.h>
#include <gst/gl/gstglshadervariables.h>
#if GST_GL_HAVE_PLATFORM_EGL
#include <gst/gl/egl/gstgldisplay_egl.h>
#include <gst/gl/egl/gsteglimagememory.h>
#endif
#endif /* __GST_GL_H__ */

7
gst-libs/gst/gl/gstglapi.h
View file

@ -36,7 +36,11 @@
#pragma GCC optimize ("gnu89-inline")
#endif
#ifndef EGL_EGLEXT_PROTOTYPES
#define EGL_EGLEXT_PROTOTYPES 1
#endif
#include <EGL/egl.h>
#include <EGL/eglext.h>
#if defined (USE_EGL_RPI) && defined(__GNUC__)
#pragma GCC reset_options
@ -47,6 +51,9 @@
/* OpenGL 2.0 for Embedded Systems */
#if GST_GL_HAVE_GLES2
#ifndef GL_GLEXT_PROTOTYPES
#define GL_GLEXT_PROTOTYPES 1
#endif
# include <GLES2/gl2.h>
# include <GLES2/gl2ext.h>
# if !GST_GL_HAVE_OPENGL

122
gst-libs/gst/gl/gstglbufferpool.c
View file

@ -25,6 +25,10 @@
#include "gl.h"
#include "gstglbufferpool.h"
#if GST_GL_HAVE_PLATFORM_EGL
#include <gst/gl/egl/gsteglimagememory.h>
#endif
/**
* SECTION:gstglbufferpool
* @short_description: buffer pool for #GstGLMemory objects
@ -46,13 +50,14 @@ struct _GstGLBufferPoolPrivate
GstCaps *caps;
gint im_format;
GstVideoInfo info;
guint padded_width;
guint padded_height;
gboolean add_videometa;
#if GST_GL_HAVE_PLATFORM_EGL
gboolean want_eglimage;
GstBuffer *last_buffer;
#endif
};
static void gst_gl_buffer_pool_finalize (GObject * object);
static void gst_gl_buffer_pool_dispose (GObject * object);
GST_DEBUG_CATEGORY_STATIC (GST_CAT_GL_BUFFER_POOL);
#define GST_CAT_DEFAULT GST_CAT_GL_BUFFER_POOL
@ -119,6 +124,11 @@ gst_gl_buffer_pool_set_config (GstBufferPool * pool, GstStructure * config)
priv->add_videometa = gst_buffer_pool_config_has_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
#if GST_GL_HAVE_PLATFORM_EGL
priv->want_eglimage = (priv->allocator
&& g_strcmp0 (priv->allocator->mem_type, GST_EGL_IMAGE_MEMORY_TYPE) == 0);
#endif
return GST_BUFFER_POOL_CLASS (parent_class)->set_config (pool, config);
/* ERRORS */
@ -166,6 +176,18 @@ gst_gl_buffer_pool_alloc (GstBufferPool * pool, GstBuffer ** buffer,
if (!(buf = gst_buffer_new ())) {
goto no_buffer;
}
#if GST_GL_HAVE_PLATFORM_EGL
if (priv->want_eglimage) {
/* alloc and append memories, also add video_meta and
* texture_upload_meta */
if (!gst_egl_image_memory_setup_buffer (glpool->context, info, buf))
goto egl_image_mem_create_failed;
*buffer = buf;
return GST_FLOW_OK;
}
#endif
if (!(gl_mem = gst_gl_memory_alloc (glpool->context, priv->info)))
goto mem_create_failed;
@ -192,12 +214,56 @@ no_buffer:
GST_WARNING_OBJECT (pool, "can't create image");
return GST_FLOW_ERROR;
}
mem_create_failed:
{
GST_WARNING_OBJECT (pool, "Could not create GL Memory");
return GST_FLOW_ERROR;
}
#if GST_GL_HAVE_PLATFORM_EGL
egl_image_mem_create_failed:
{
GST_WARNING_OBJECT (pool, "Could not create EGLImage Memory");
return GST_FLOW_ERROR;
}
#endif
}
static GstFlowReturn
gst_gl_buffer_pool_acquire_buffer (GstBufferPool * bpool,
GstBuffer ** buffer, GstBufferPoolAcquireParams * params)
{
GstFlowReturn ret = GST_FLOW_OK;
#if GST_GL_HAVE_PLATFORM_EGL
GstGLBufferPool *glpool = NULL;
#endif
ret =
GST_BUFFER_POOL_CLASS
(gst_gl_buffer_pool_parent_class)->acquire_buffer (bpool, buffer, params);
if (ret != GST_FLOW_OK || !*buffer)
return ret;
#if GST_GL_HAVE_PLATFORM_EGL
glpool = GST_GL_BUFFER_POOL (bpool);
/* XXX: Don't return the memory we just rendered, glEGLImageTargetTexture2DOES()
* keeps the EGLImage unmappable until the next one is uploaded
*/
if (glpool->priv->want_eglimage && *buffer
&& *buffer == glpool->priv->last_buffer) {
GstBuffer *oldbuf = *buffer;
ret =
GST_BUFFER_POOL_CLASS
(gst_gl_buffer_pool_parent_class)->acquire_buffer (bpool,
buffer, params);
gst_object_replace ((GstObject **) & oldbuf->pool, (GstObject *) glpool);
gst_buffer_unref (oldbuf);
}
#endif
return ret;
}
/**
@ -219,6 +285,18 @@ gst_gl_buffer_pool_new (GstGLContext * context)
return GST_BUFFER_POOL_CAST (pool);
}
#if GST_GL_HAVE_PLATFORM_EGL
void
gst_gl_buffer_pool_replace_last_buffer (GstGLBufferPool * pool,
GstBuffer * buffer)
{
g_return_if_fail (pool != NULL);
g_return_if_fail (buffer != NULL);
gst_buffer_replace (&pool->priv->last_buffer, buffer);
}
#endif
static void
gst_gl_buffer_pool_class_init (GstGLBufferPoolClass * klass)
{
@ -228,30 +306,32 @@ gst_gl_buffer_pool_class_init (GstGLBufferPoolClass * klass)
g_type_class_add_private (klass, sizeof (GstGLBufferPoolPrivate));
gobject_class->finalize = gst_gl_buffer_pool_finalize;
gobject_class->dispose = gst_gl_buffer_pool_dispose;
gstbufferpool_class->get_options = gst_gl_buffer_pool_get_options;
gstbufferpool_class->set_config = gst_gl_buffer_pool_set_config;
gstbufferpool_class->alloc_buffer = gst_gl_buffer_pool_alloc;
gstbufferpool_class->acquire_buffer = gst_gl_buffer_pool_acquire_buffer;
}
static void
gst_gl_buffer_pool_init (GstGLBufferPool * pool)
{
GstGLBufferPoolPrivate *priv = NULL;
pool->priv = GST_GL_BUFFER_POOL_GET_PRIVATE (pool);
}
priv = pool->priv;
static void
gst_gl_buffer_pool_dispose (GObject * object)
{
GstGLBufferPool *pool = GST_GL_BUFFER_POOL_CAST (object);
priv->allocator = NULL;
priv->caps = NULL;
priv->im_format = GST_VIDEO_FORMAT_UNKNOWN;
priv->add_videometa = TRUE;
#if GST_GL_HAVE_PLATFORM_EGL
priv->want_eglimage = FALSE;
priv->last_buffer = FALSE;
#endif
if (pool->context) {
gst_object_unref (pool->context);
pool->context = NULL;
}
G_OBJECT_CLASS (gst_gl_buffer_pool_parent_class)->dispose (object);
gst_video_info_init (&priv->info);
gst_allocation_params_init (&priv->params);
}
static void
@ -262,8 +342,18 @@ gst_gl_buffer_pool_finalize (GObject * object)
GST_LOG_OBJECT (pool, "finalize GL buffer pool %p", pool);
#if GST_GL_HAVE_PLATFORM_EGL
gst_buffer_replace (&pool->priv->last_buffer, NULL);
#endif
if (priv->caps)
gst_caps_unref (priv->caps);
G_OBJECT_CLASS (gst_gl_buffer_pool_parent_class)->finalize (object);
/* only release the context once all our memory have been deleted */
if (pool->context) {
gst_object_unref (pool->context);
pool->context = NULL;
}
}

4
gst-libs/gst/gl/gstglbufferpool.h
View file

@ -65,6 +65,10 @@ struct _GstGLBufferPoolClass
};
GstBufferPool *gst_gl_buffer_pool_new (GstGLContext * context);
#if GST_GL_HAVE_PLATFORM_EGL
void gst_gl_buffer_pool_replace_last_buffer (GstGLBufferPool * pool,
GstBuffer * buffer);
#endif
G_END_DECLS

5
gst-libs/gst/gl/gstgldisplay.c
View file

@ -44,6 +44,7 @@
#endif
#if GST_GL_HAVE_PLATFORM_EGL
#include <gst/gl/egl/gstgldisplay_egl.h>
#include <gst/gl/egl/gsteglimagememory.h>
#endif
GST_DEBUG_CATEGORY_STATIC (gst_context);
@ -89,6 +90,10 @@ gst_gl_display_init (GstGLDisplay * display)
GST_TRACE ("init %p", display);
gst_gl_memory_init ();
#if GST_GL_HAVE_PLATFORM_EGL
gst_egl_image_memory_init ();
#endif
}
static void

2
gst-libs/gst/gl/gstgles2.h
View file

@ -30,6 +30,8 @@ G_BEGIN_DECLS
/* SUPPORTED */
//FIXME:
#define GL_RGB16 GL_RGB565
#define GL_RGB8 GL_RGB
#define GL_RGBA8 GL_RGBA
#define GL_BGRA GL_RGBA
#define GL_BGR GL_RGB

24
gst-libs/gst/gl/gstglfilter.c
View file

@ -34,7 +34,10 @@ static GstStaticPadTemplate gst_gl_filter_src_pad_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (GST_GL_DOWNLOAD_FORMATS) "; "
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_EGL_IMAGE,
"RGBA") "; "
GST_VIDEO_CAPS_MAKE (GST_GL_DOWNLOAD_FORMATS) "; "
GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META,
"RGBA"))
@ -44,7 +47,10 @@ static GstStaticPadTemplate gst_gl_filter_sink_pad_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (GST_GL_UPLOAD_FORMATS) "; "
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_EGL_IMAGE,
"RGBA") "; "
GST_VIDEO_CAPS_MAKE (GST_GL_UPLOAD_FORMATS) "; "
GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META,
"RGBA"))
@ -737,6 +743,8 @@ gst_gl_filter_propose_allocation (GstBaseTransform * trans,
GstStructure *gl_context;
gchar *platform, *gl_apis;
gpointer handle;
GstAllocator *allocator = NULL;
GstAllocationParams params;
gst_query_parse_allocation (query, &caps, &need_pool);
@ -814,6 +822,18 @@ gst_gl_filter_propose_allocation (GstBaseTransform * trans,
g_free (platform);
gst_structure_free (gl_context);
gst_allocation_params_init (&params);
allocator = gst_allocator_find (GST_GL_MEMORY_ALLOCATOR);
gst_query_add_allocation_param (query, allocator, &params);
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);
#endif
return TRUE;
/* ERRORS */

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

@ -327,6 +327,8 @@ gst_gl_mixer_propose_allocation (GstGLMixer * mix,
GstStructure *gl_context;
gchar *platform, *gl_apis;
gpointer handle;
GstAllocator *allocator = NULL;
GstAllocationParams params;
gst_query_parse_allocation (query, &caps, &need_pool);
@ -402,6 +404,12 @@ gst_gl_mixer_propose_allocation (GstGLMixer * mix,
g_free (platform);
gst_structure_free (gl_context);
gst_allocation_params_init (&params);
allocator = gst_allocator_find (GST_GL_MEMORY_ALLOCATOR);
gst_query_add_allocation_param (query, allocator, &params);
gst_object_unref (allocator);
return TRUE;
/* ERRORS */

163
gst-libs/gst/gl/gstglutils.c
View file

@ -147,6 +147,169 @@ gst_gl_context_del_texture (GstGLContext * context, GLuint * pTexture)
pTexture);
}
typedef struct _GenTextureFull
{
const GstVideoInfo *info;
const gint comp;
guint result;
} GenTextureFull;
static void
_gen_texture_full (GstGLContext * context, GenTextureFull * data)
{
const GstGLFuncs *gl = context->gl_vtable;
GLint glinternalformat = 0;
GLenum glformat = 0;
GLenum gltype = 0;
gl->GenTextures (1, &data->result);
gl->BindTexture (GL_TEXTURE_2D, data->result);
switch (GST_VIDEO_INFO_FORMAT (data->info)) {
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
{
glinternalformat = GL_RGB8;
glformat = GL_RGB;
gltype = GL_UNSIGNED_BYTE;
break;
}
case GST_VIDEO_FORMAT_RGB16:
{
glinternalformat = GL_RGB16;
glformat = GL_RGB;
gltype = GL_UNSIGNED_SHORT_5_6_5;
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:
{
glinternalformat = GL_RGBA8;
glformat = GL_RGBA;
gltype = GL_UNSIGNED_BYTE;
break;
}
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
{
glinternalformat = GL_LUMINANCE;
glformat = data->comp == 0 ? GL_LUMINANCE : GL_LUMINANCE_ALPHA;
gltype = GL_UNSIGNED_BYTE;
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:
{
glformat = GL_LUMINANCE;
gltype = GL_UNSIGNED_BYTE;
break;
}
default:
GST_WARNING ("unsupported %s",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (data->info)));
break;
}
gl->TexImage2D (GL_TEXTURE_2D, 0, glinternalformat,
GST_VIDEO_INFO_COMP_WIDTH (data->info, data->comp),
GST_VIDEO_INFO_COMP_HEIGHT (data->info, data->comp), 0, glformat, gltype,
NULL);
gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
gl->TexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
void
gst_gl_generate_texture_full (GstGLContext * context, const GstVideoInfo * info,
const guint comp, gint stride[], gsize offset[], gsize size[],
GLuint * pTexture)
{
GenTextureFull data = { info, comp, 0 };
switch (GST_VIDEO_INFO_FORMAT (info)) {
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
{
stride[0] = GST_ROUND_UP_4 (GST_VIDEO_INFO_WIDTH (info) * 3);
offset[0] = 0;
size[0] = stride[0] * GST_VIDEO_INFO_HEIGHT (info);
break;
}
case GST_VIDEO_FORMAT_RGB16:
{
stride[0] = GST_ROUND_UP_4 (GST_VIDEO_INFO_WIDTH (info) * 2);
offset[0] = 0;
size[0] = stride[0] * GST_VIDEO_INFO_HEIGHT (info);
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:
{
stride[0] = GST_ROUND_UP_4 (GST_VIDEO_INFO_WIDTH (info) * 4);
offset[0] = 0;
size[0] = stride[0] * GST_VIDEO_INFO_HEIGHT (info);
break;
}
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
{
size[comp] = stride[comp] * GST_VIDEO_INFO_COMP_HEIGHT (info, comp);
if (comp == 0) {
stride[0] = GST_ROUND_UP_4 (GST_VIDEO_INFO_COMP_WIDTH (info, 1));
offset[0] = 0;
} else {
stride[1] = GST_ROUND_UP_4 (GST_VIDEO_INFO_COMP_WIDTH (info, 1) * 2);
offset[1] = size[0];
}
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:
{
stride[comp] = GST_ROUND_UP_4 (GST_VIDEO_INFO_COMP_WIDTH (info, comp));;
size[comp] = stride[comp] * GST_VIDEO_INFO_COMP_HEIGHT (info, comp);
if (comp == 0)
offset[0] = 0;
else if (comp == 1)
offset[1] = size[0];
else
offset[2] = offset[1] + size[1];
break;
}
default:
GST_WARNING ("unsupported %s",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (info)));
break;
}
gst_gl_context_thread_add (context,
(GstGLContextThreadFunc) _gen_texture_full, &data);
*pTexture = data.result;
}
typedef struct _GenFBO
{
GstGLFramebuffer *frame;

3
gst-libs/gst/gl/gstglutils.h
View file

@ -78,6 +78,9 @@ void gst_gl_context_gen_texture (GstGLContext * context, GLuint * pTexture,
GstVideoFormat v_format, GLint width, GLint height);
void gst_gl_context_del_texture (GstGLContext * context, GLuint * pTexture);
void gst_gl_generate_texture_full (GstGLContext * context, const GstVideoInfo * info,
const guint comp, gint stride[], gsize offset[], gsize size[], GLuint * pTexture);
gboolean gst_gl_context_gen_fbo (GstGLContext * context, gint width, gint height,
GLuint * fbo, GLuint * depthbuffer);
gboolean gst_gl_context_use_fbo (GstGLContext * context, gint texture_fbo_width,