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gstreamer/ext/eglgles/gstegladaptation_egl.c

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/*
* Copyright (C) 2012-2013 Collabora Ltd.
* @author: Reynaldo H. Verdejo Pinochet <reynaldo@collabora.com>
* @author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
* @author: Thiago Santos <thiago.sousa.santos@collabora.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Alternatively, the contents of this file may be used under the
* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
* which case the following provisions apply instead of the ones
* mentioned above:
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "gstegladaptation.h"
#include "video_platform_wrapper.h"
#include <string.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <gst/egl/egl.h>
#define GST_CAT_DEFAULT egladaption_debug
/* Some EGL implementations are reporting wrong
* values for the display's EGL_PIXEL_ASPECT_RATIO.
* They are required by the khronos specs to report
* this value as w/h * EGL_DISPLAY_SCALING (Which is
* a constant with value 10000) but at least the
* Galaxy SIII (Android) is reporting just 1 when
* w = h. We use these two to bound returned values to
* sanity.
*/
#define EGL_SANE_DAR_MIN ((EGL_DISPLAY_SCALING)/10)
#define EGL_SANE_DAR_MAX ((EGL_DISPLAY_SCALING)*10)
/*
* GstEglGlesRenderContext:
* @config: Current EGL config
* @eglcontext: Current EGL context
* @egl_minor: EGL version (minor)
* @egl_major: EGL version (major)
*
* This struct holds the sink's EGL/GLES rendering context.
*/
struct _GstEglGlesRenderContext
{
EGLConfig config;
EGLContext eglcontext;
EGLSurface surface;
EGLint egl_minor, egl_major;
};
gboolean
got_egl_error (const char *wtf)
{
EGLint error;
if ((error = eglGetError ()) != EGL_SUCCESS) {
GST_CAT_DEBUG (GST_CAT_DEFAULT, "EGL ERROR: %s returned 0x%04x", wtf,
error);
return TRUE;
}
return FALSE;
}
/* Prints available EGL/GLES extensions
* If another rendering path is implemented this is the place
* where you want to check for the availability of its supporting
* EGL/GLES extensions.
*/
void
gst_egl_adaptation_init_egl_exts (GstEglAdaptationContext * ctx)
{
const char *eglexts;
unsigned const char *glexts;
eglexts = eglQueryString (gst_egl_display_get (ctx->display), EGL_EXTENSIONS);
glexts = glGetString (GL_EXTENSIONS);
GST_DEBUG_OBJECT (ctx->element, "Available EGL extensions: %s\n",
GST_STR_NULL (eglexts));
GST_DEBUG_OBJECT (ctx->element, "Available GLES extensions: %s\n",
GST_STR_NULL ((const char *) glexts));
return;
}
gboolean
gst_egl_adaptation_init_egl_display (GstEglAdaptationContext * ctx)
{
GstMessage *msg;
EGLDisplay display;
GST_DEBUG_OBJECT (ctx->element, "Enter EGL initial configuration");
if (!platform_wrapper_init ()) {
GST_ERROR_OBJECT (ctx->element, "Couldn't init EGL platform wrapper");
goto HANDLE_ERROR;
}
#ifdef USE_EGL_RPI
/* See https://github.com/raspberrypi/firmware/issues/99 */
if (!eglMakeCurrent ((EGLDisplay) 1, EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT)) {
got_egl_error ("eglMakeCurrent");
GST_ERROR_OBJECT (ctx->element, "Couldn't unbind context");
return FALSE;
}
#endif
msg = gst_message_new_need_context (GST_OBJECT_CAST (ctx->element));
gst_message_add_context_type (msg, GST_EGL_DISPLAY_CONTEXT_TYPE);
gst_element_post_message (GST_ELEMENT_CAST (ctx->element), msg);
GST_OBJECT_LOCK (ctx->element);
if (ctx->set_display) {
GstContext *context;
ctx->display = gst_egl_display_ref (ctx->set_display);
GST_OBJECT_UNLOCK (ctx->element);
context = gst_element_get_context (GST_ELEMENT_CAST (ctx->element));
if (!context)
context = gst_context_new ();
context = gst_context_make_writable (context);
gst_context_set_egl_display (context, ctx->display);
gst_element_set_context (GST_ELEMENT_CAST (ctx->element), context);
gst_context_unref (context);
} else {
GstContext *context;
GST_OBJECT_UNLOCK (ctx->element);
display = eglGetDisplay (EGL_DEFAULT_DISPLAY);
if (display == EGL_NO_DISPLAY) {
GST_ERROR_OBJECT (ctx->element, "Could not get EGL display connection");
goto HANDLE_ERROR; /* No EGL error is set by eglGetDisplay() */
}
ctx->display = gst_egl_display_new (display);
context = gst_context_new ();
gst_context_set_egl_display (context, ctx->display);
msg = gst_message_new_have_context (GST_OBJECT (ctx->element), context);
gst_element_post_message (GST_ELEMENT_CAST (ctx->element), msg);
context = NULL;
context = gst_element_get_context (GST_ELEMENT_CAST (ctx->element));
if (!context)
context = gst_context_new ();
context = gst_context_make_writable (context);
gst_context_set_egl_display (context, ctx->display);
gst_element_set_context (GST_ELEMENT_CAST (ctx->element), context);
gst_context_unref (context);
}
if (!eglInitialize (gst_egl_display_get (ctx->display),
&ctx->eglglesctx->egl_major, &ctx->eglglesctx->egl_minor)) {
got_egl_error ("eglInitialize");
GST_ERROR_OBJECT (ctx->element, "Could not init EGL display connection");
goto HANDLE_EGL_ERROR;
}
/* Check against required EGL version
* XXX: Need to review the version requirement in terms of the needed API
*/
if (ctx->eglglesctx->egl_major < GST_EGLGLESSINK_EGL_MIN_VERSION) {
GST_ERROR_OBJECT (ctx->element, "EGL v%d needed, but you only have v%d.%d",
GST_EGLGLESSINK_EGL_MIN_VERSION, ctx->eglglesctx->egl_major,
ctx->eglglesctx->egl_minor);
goto HANDLE_ERROR;
}
GST_INFO_OBJECT (ctx->element, "System reports supported EGL version v%d.%d",
ctx->eglglesctx->egl_major, ctx->eglglesctx->egl_minor);
eglBindAPI (EGL_OPENGL_ES_API);
return TRUE;
/* Errors */
HANDLE_EGL_ERROR:
GST_ERROR_OBJECT (ctx->element, "EGL call returned error %x", eglGetError ());
HANDLE_ERROR:
GST_ERROR_OBJECT (ctx->element, "Couldn't setup window/surface from handle");
return FALSE;
}
gboolean
gst_egl_adaptation_context_make_current (GstEglAdaptationContext * ctx,
gboolean bind)
{
g_assert (ctx->display != NULL);
if (bind && ctx->eglglesctx->surface && ctx->eglglesctx->eglcontext) {
EGLContext *cur_ctx = eglGetCurrentContext ();
if (cur_ctx == ctx->eglglesctx->eglcontext) {
GST_DEBUG_OBJECT (ctx->element,
"Already attached the context to thread %p", g_thread_self ());
return TRUE;
}
GST_DEBUG_OBJECT (ctx->element, "Attaching context to thread %p",
g_thread_self ());
if (!eglMakeCurrent (gst_egl_display_get (ctx->display),
ctx->eglglesctx->surface, ctx->eglglesctx->surface,
ctx->eglglesctx->eglcontext)) {
got_egl_error ("eglMakeCurrent");
GST_ERROR_OBJECT (ctx->element, "Couldn't bind context");
return FALSE;
}
} else {
GST_DEBUG_OBJECT (ctx->element, "Detaching context from thread %p",
g_thread_self ());
if (!eglMakeCurrent (gst_egl_display_get (ctx->display),
EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT)) {
got_egl_error ("eglMakeCurrent");
GST_ERROR_OBJECT (ctx->element, "Couldn't unbind context");
return FALSE;
}
}
return TRUE;
}
/* XXX: Lock eglgles context? */
gboolean
gst_egl_adaptation_update_surface_dimensions (GstEglAdaptationContext * ctx)
{
gint width, height;
/* Save surface dims */
eglQuerySurface (gst_egl_display_get (ctx->display),
ctx->eglglesctx->surface, EGL_WIDTH, &width);
eglQuerySurface (gst_egl_display_get (ctx->display),
ctx->eglglesctx->surface, EGL_HEIGHT, &height);
if (width != ctx->surface_width || height != ctx->surface_height) {
ctx->surface_width = width;
ctx->surface_height = height;
GST_INFO_OBJECT (ctx->element, "Got surface of %dx%d pixels", width,
height);
return TRUE;
}
return FALSE;
}
gboolean
gst_egl_adaptation_context_swap_buffers (GstEglAdaptationContext * ctx)
{
gboolean ret = eglSwapBuffers (gst_egl_display_get (ctx->display),
ctx->eglglesctx->surface);
if (ret == EGL_FALSE) {
got_egl_error ("eglSwapBuffers");
}
return ret;
}
gboolean
_gst_egl_choose_config (GstEglAdaptationContext * ctx, gboolean try_only,
gint * num_configs)
{
EGLint cfg_number;
gboolean ret;
EGLConfig *config = NULL;
if (!try_only)
config = &ctx->eglglesctx->config;
ret = eglChooseConfig (gst_egl_display_get (ctx->display),
eglglessink_RGBA8888_attribs, config, 1, &cfg_number) != EGL_FALSE;
if (!ret)
got_egl_error ("eglChooseConfig");
else if (num_configs)
*num_configs = cfg_number;
return ret;
}
gboolean
gst_egl_adaptation_create_surface (GstEglAdaptationContext * ctx)
{
ctx->eglglesctx->surface =
eglCreateWindowSurface (gst_egl_display_get (ctx->display),
ctx->eglglesctx->config, ctx->used_window, NULL);
if (ctx->eglglesctx->surface == EGL_NO_SURFACE) {
got_egl_error ("eglCreateWindowSurface");
GST_ERROR_OBJECT (ctx->element, "Can't create surface");
return FALSE;
}
return TRUE;
}
void
gst_egl_adaptation_query_buffer_preserved (GstEglAdaptationContext * ctx)
{
EGLint swap_behavior;
ctx->buffer_preserved = FALSE;
if (eglQuerySurface (gst_egl_display_get (ctx->display),
ctx->eglglesctx->surface, EGL_SWAP_BEHAVIOR, &swap_behavior)) {
GST_DEBUG_OBJECT (ctx->element, "Buffer swap behavior %x", swap_behavior);
ctx->buffer_preserved = swap_behavior == EGL_BUFFER_PRESERVED;
} else {
GST_DEBUG_OBJECT (ctx->element, "Can't query buffer swap behavior");
}
}
void
gst_egl_adaptation_query_par (GstEglAdaptationContext * ctx)
{
EGLint display_par;
/* fixed value */
ctx->pixel_aspect_ratio_d = EGL_DISPLAY_SCALING;
/* Save display's pixel aspect ratio
*
* DAR is reported as w/h * EGL_DISPLAY_SCALING wich is
* a constant with value 10000. This attribute is only
* supported if the EGL version is >= 1.2
* XXX: Setup this as a property.
* or some other one time check. Right now it's being called once
* per frame.
*/
if (ctx->eglglesctx->egl_major == 1 && ctx->eglglesctx->egl_minor < 2) {
GST_DEBUG_OBJECT (ctx->element, "Can't query PAR. Using default: %dx%d",
EGL_DISPLAY_SCALING, EGL_DISPLAY_SCALING);
ctx->pixel_aspect_ratio_n = EGL_DISPLAY_SCALING;
} else {
eglQuerySurface (gst_egl_display_get (ctx->display),
ctx->eglglesctx->surface, EGL_PIXEL_ASPECT_RATIO, &display_par);
/* Fix for outbound DAR reporting on some implementations not
* honoring the 'should return w/h * EGL_DISPLAY_SCALING' spec
* requirement
*/
if (display_par == EGL_UNKNOWN || display_par < EGL_SANE_DAR_MIN ||
display_par > EGL_SANE_DAR_MAX) {
GST_DEBUG_OBJECT (ctx->element, "Nonsensical PAR value returned: %d. "
"Bad EGL implementation? "
"Will use default: %d/%d", ctx->pixel_aspect_ratio_n,
EGL_DISPLAY_SCALING, EGL_DISPLAY_SCALING);
ctx->pixel_aspect_ratio_n = EGL_DISPLAY_SCALING;
} else {
ctx->pixel_aspect_ratio_n = display_par;
}
}
}
gboolean
gst_egl_adaptation_create_egl_context (GstEglAdaptationContext * ctx)
{
EGLint con_attribs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
ctx->eglglesctx->eglcontext =
eglCreateContext (gst_egl_display_get (ctx->display),
ctx->eglglesctx->config, EGL_NO_CONTEXT, con_attribs);
if (ctx->eglglesctx->eglcontext == EGL_NO_CONTEXT) {
GST_ERROR_OBJECT (ctx->element, "EGL call returned error %x",
eglGetError ());
return FALSE;
}
GST_DEBUG_OBJECT (ctx->element, "EGL Context: %p",
ctx->eglglesctx->eglcontext);
return TRUE;
}
static void
gst_egl_gles_image_data_free (GstEGLGLESImageData * data)
{
glDeleteTextures (1, &data->texture);
g_slice_free (GstEGLGLESImageData, data);
}
GstBuffer *
gst_egl_adaptation_allocate_eglimage (GstEglAdaptationContext * ctx,
GstAllocator * allocator, GstVideoFormat format, gint width, gint height)
{
GstEGLGLESImageData *data = NULL;
GstBuffer *buffer;
GstVideoInfo info;
gint i;
gint stride[3];
gsize offset[3];
GstMemory *mem[3] = { NULL, NULL, NULL };
guint n_mem;
GstMemoryFlags flags = 0;
memset (stride, 0, sizeof (stride));
memset (offset, 0, sizeof (offset));
if (!gst_egl_image_memory_is_mappable ())
flags |= GST_MEMORY_FLAG_NOT_MAPPABLE;
/* See https://bugzilla.gnome.org/show_bug.cgi?id=695203 */
flags |= GST_MEMORY_FLAG_NO_SHARE;
gst_video_info_set_format (&info, format, width, height);
switch (format) {
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:{
gsize size;
EGLImageKHR image;
mem[0] =
gst_egl_image_allocator_alloc (allocator, ctx->display,
GST_VIDEO_GL_TEXTURE_TYPE_RGB, 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 {
data = g_slice_new0 (GstEGLGLESImageData);
stride[0] = GST_ROUND_UP_4 (GST_VIDEO_INFO_WIDTH (&info) * 3);
size = stride[0] * GST_VIDEO_INFO_HEIGHT (&info);
glGenTextures (1, &data->texture);
if (got_gl_error ("glGenTextures"))
goto mem_error;
glBindTexture (GL_TEXTURE_2D, data->texture);
if (got_gl_error ("glBindTexture"))
goto mem_error;
/* Set 2D resizing params */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
/* If these are not set the texture image unit will return
* * (R, G, B, A) = black on glTexImage2D for non-POT width/height
* * frames. For a deeper explanation take a look at the OpenGL ES
* * documentation for glTexParameter */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (got_gl_error ("glTexParameteri"))
goto mem_error;
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGB,
GST_VIDEO_INFO_WIDTH (&info),
GST_VIDEO_INFO_HEIGHT (&info), 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
if (got_gl_error ("glTexImage2D"))
goto mem_error;
image =
eglCreateImageKHR (gst_egl_display_get (ctx->display),
ctx->eglglesctx->eglcontext, EGL_GL_TEXTURE_2D_KHR,
(EGLClientBuffer) (guintptr) data->texture, NULL);
if (got_egl_error ("eglCreateImageKHR"))
goto mem_error;
mem[0] =
gst_egl_image_allocator_wrap (allocator, ctx->display,
image, GST_VIDEO_GL_TEXTURE_TYPE_RGB,
flags, size, data, (GDestroyNotify) gst_egl_gles_image_data_free);
n_mem = 1;
}
break;
}
case GST_VIDEO_FORMAT_RGB16:{
EGLImageKHR image;
gsize size;
mem[0] =
gst_egl_image_allocator_alloc (allocator, ctx->display,
GST_VIDEO_GL_TEXTURE_TYPE_RGB, 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 {
data = g_slice_new0 (GstEGLGLESImageData);
stride[0] = GST_ROUND_UP_4 (GST_VIDEO_INFO_WIDTH (&info) * 2);
size = stride[0] * GST_VIDEO_INFO_HEIGHT (&info);
glGenTextures (1, &data->texture);
if (got_gl_error ("glGenTextures"))
goto mem_error;
glBindTexture (GL_TEXTURE_2D, data->texture);
if (got_gl_error ("glBindTexture"))
goto mem_error;
/* Set 2D resizing params */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
/* If these are not set the texture image unit will return
* * (R, G, B, A) = black on glTexImage2D for non-POT width/height
* * frames. For a deeper explanation take a look at the OpenGL ES
* * documentation for glTexParameter */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (got_gl_error ("glTexParameteri"))
goto mem_error;
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGB,
GST_VIDEO_INFO_WIDTH (&info),
GST_VIDEO_INFO_HEIGHT (&info), 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
NULL);
if (got_gl_error ("glTexImage2D"))
goto mem_error;
image =
eglCreateImageKHR (gst_egl_display_get (ctx->display),
ctx->eglglesctx->eglcontext, EGL_GL_TEXTURE_2D_KHR,
(EGLClientBuffer) (guintptr) data->texture, NULL);
if (got_egl_error ("eglCreateImageKHR"))
goto mem_error;
mem[0] =
gst_egl_image_allocator_wrap (allocator, ctx->display,
image, GST_VIDEO_GL_TEXTURE_TYPE_RGB,
flags, size, data, (GDestroyNotify) gst_egl_gles_image_data_free);
n_mem = 1;
}
break;
}
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:{
EGLImageKHR image;
gsize size[2];
mem[0] =
gst_egl_image_allocator_alloc (allocator, ctx->display,
GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE, GST_VIDEO_INFO_COMP_WIDTH (&info,
0), GST_VIDEO_INFO_COMP_HEIGHT (&info, 0), &size[0]);
mem[1] =
gst_egl_image_allocator_alloc (allocator, ctx->display,
GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE_ALPHA,
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;
stride[0] = GST_ROUND_UP_4 (GST_VIDEO_INFO_COMP_WIDTH (&info, 0));
stride[1] = GST_ROUND_UP_4 (GST_VIDEO_INFO_COMP_WIDTH (&info, 1) * 2);
offset[1] = stride[0] * GST_VIDEO_INFO_COMP_HEIGHT (&info, 0);
size[0] = offset[1];
size[1] = stride[1] * GST_VIDEO_INFO_COMP_HEIGHT (&info, 1);
for (i = 0; i < 2; i++) {
data = g_slice_new0 (GstEGLGLESImageData);
glGenTextures (1, &data->texture);
if (got_gl_error ("glGenTextures"))
goto mem_error;
glBindTexture (GL_TEXTURE_2D, data->texture);
if (got_gl_error ("glBindTexture"))
goto mem_error;
/* Set 2D resizing params */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
/* If these are not set the texture image unit will return
* * (R, G, B, A) = black on glTexImage2D for non-POT width/height
* * frames. For a deeper explanation take a look at the OpenGL ES
* * documentation for glTexParameter */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (got_gl_error ("glTexParameteri"))
goto mem_error;
if (i == 0)
glTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE,
GST_VIDEO_INFO_COMP_WIDTH (&info, i),
GST_VIDEO_INFO_COMP_HEIGHT (&info, i), 0, GL_LUMINANCE,
GL_UNSIGNED_BYTE, NULL);
else
glTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA,
GST_VIDEO_INFO_COMP_WIDTH (&info, i),
GST_VIDEO_INFO_COMP_HEIGHT (&info, i), 0, GL_LUMINANCE_ALPHA,
GL_UNSIGNED_BYTE, NULL);
if (got_gl_error ("glTexImage2D"))
goto mem_error;
image =
eglCreateImageKHR (gst_egl_display_get (ctx->display),
ctx->eglglesctx->eglcontext, EGL_GL_TEXTURE_2D_KHR,
(EGLClientBuffer) (guintptr) data->texture, NULL);
if (got_egl_error ("eglCreateImageKHR"))
goto mem_error;
mem[i] =
gst_egl_image_allocator_wrap (allocator, ctx->display,
image,
(i ==
0 ? GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE :
GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE_ALPHA),
flags, size[i], data,
(GDestroyNotify) gst_egl_gles_image_data_free);
}
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:{
EGLImageKHR image;
gsize size[3];
mem[0] =
gst_egl_image_allocator_alloc (allocator, ctx->display,
GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE, GST_VIDEO_INFO_COMP_WIDTH (&info,
0), GST_VIDEO_INFO_COMP_HEIGHT (&info, 0), &size[0]);
mem[1] =
gst_egl_image_allocator_alloc (allocator, ctx->display,
GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE, GST_VIDEO_INFO_COMP_WIDTH (&info,
1), GST_VIDEO_INFO_COMP_HEIGHT (&info, 1), &size[1]);
mem[2] =
gst_egl_image_allocator_alloc (allocator, ctx->display,
GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE, 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;
stride[0] = GST_ROUND_UP_4 (GST_VIDEO_INFO_COMP_WIDTH (&info, 0));
stride[1] = GST_ROUND_UP_4 (GST_VIDEO_INFO_COMP_WIDTH (&info, 1));
stride[2] = GST_ROUND_UP_4 (GST_VIDEO_INFO_COMP_WIDTH (&info, 2));
size[0] = stride[0] * GST_VIDEO_INFO_COMP_HEIGHT (&info, 0);
size[1] = stride[1] * GST_VIDEO_INFO_COMP_HEIGHT (&info, 1);
size[2] = stride[2] * GST_VIDEO_INFO_COMP_HEIGHT (&info, 2);
offset[0] = 0;
offset[1] = size[0];
offset[2] = offset[1] + size[1];
for (i = 0; i < 3; i++) {
data = g_slice_new0 (GstEGLGLESImageData);
glGenTextures (1, &data->texture);
if (got_gl_error ("glGenTextures"))
goto mem_error;
glBindTexture (GL_TEXTURE_2D, data->texture);
if (got_gl_error ("glBindTexture"))
goto mem_error;
/* Set 2D resizing params */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
/* If these are not set the texture image unit will return
* * (R, G, B, A) = black on glTexImage2D for non-POT width/height
* * frames. For a deeper explanation take a look at the OpenGL ES
* * documentation for glTexParameter */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (got_gl_error ("glTexParameteri"))
goto mem_error;
glTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE,
GST_VIDEO_INFO_COMP_WIDTH (&info, i),
GST_VIDEO_INFO_COMP_HEIGHT (&info, i), 0, GL_LUMINANCE,
GL_UNSIGNED_BYTE, NULL);
if (got_gl_error ("glTexImage2D"))
goto mem_error;
image =
eglCreateImageKHR (gst_egl_display_get (ctx->display),
ctx->eglglesctx->eglcontext, EGL_GL_TEXTURE_2D_KHR,
(EGLClientBuffer) (guintptr) data->texture, NULL);
if (got_egl_error ("eglCreateImageKHR"))
goto mem_error;
mem[i] =
gst_egl_image_allocator_wrap (allocator, ctx->display,
image, GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE,
flags, size[i], data,
(GDestroyNotify) gst_egl_gles_image_data_free);
}
n_mem = 3;
}
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:{
gsize size;
EGLImageKHR image;
mem[0] =
gst_egl_image_allocator_alloc (allocator, ctx->display,
GST_VIDEO_GL_TEXTURE_TYPE_RGBA, 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 {
data = g_slice_new0 (GstEGLGLESImageData);
stride[0] = GST_ROUND_UP_4 (GST_VIDEO_INFO_WIDTH (&info) * 4);
size = stride[0] * GST_VIDEO_INFO_HEIGHT (&info);
glGenTextures (1, &data->texture);
if (got_gl_error ("glGenTextures"))
goto mem_error;
glBindTexture (GL_TEXTURE_2D, data->texture);
if (got_gl_error ("glBindTexture"))
goto mem_error;
/* Set 2D resizing params */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
/* If these are not set the texture image unit will return
* * (R, G, B, A) = black on glTexImage2D for non-POT width/height
* * frames. For a deeper explanation take a look at the OpenGL ES
* * documentation for glTexParameter */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (got_gl_error ("glTexParameteri"))
goto mem_error;
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA,
GST_VIDEO_INFO_WIDTH (&info),
GST_VIDEO_INFO_HEIGHT (&info), 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
if (got_gl_error ("glTexImage2D"))
goto mem_error;
image =
eglCreateImageKHR (gst_egl_display_get (ctx->display),
ctx->eglglesctx->eglcontext, EGL_GL_TEXTURE_2D_KHR,
(EGLClientBuffer) (guintptr) data->texture, NULL);
if (got_egl_error ("eglCreateImageKHR"))
goto mem_error;
mem[0] =
gst_egl_image_allocator_wrap (allocator, ctx->display,
image, GST_VIDEO_GL_TEXTURE_TYPE_RGBA,
flags, size, data, (GDestroyNotify) gst_egl_gles_image_data_free);
n_mem = 1;
}
break;
}
default:
g_assert_not_reached ();
break;
}
buffer = gst_buffer_new ();
gst_buffer_add_video_meta_full (buffer, 0, format, width, height,
GST_VIDEO_INFO_N_PLANES (&info), offset, stride);
for (i = 0; i < n_mem; i++)
gst_buffer_append_memory (buffer, mem[i]);
return buffer;
mem_error:
{
GST_ERROR_OBJECT (ctx->element, "Failed to create EGLImage");
if (data)
gst_egl_gles_image_data_free (data);
if (mem[0])
gst_memory_unref (mem[0]);
if (mem[1])
gst_memory_unref (mem[1]);
if (mem[2])
gst_memory_unref (mem[2]);
return NULL;
}
}
void
gst_egl_adaptation_destroy_native_window (GstEglAdaptationContext * ctx,
gpointer * own_window_data)
{
platform_destroy_native_window (gst_egl_display_get
(ctx->display), ctx->used_window, own_window_data);
ctx->used_window = 0;
}
gboolean
gst_egl_adaptation_create_native_window (GstEglAdaptationContext * ctx,
gint width, gint height, gpointer * own_window_data)
{
EGLNativeWindowType window =
platform_create_native_window (width, height, own_window_data);
if (window)
gst_egl_adaptation_set_window (ctx, (guintptr) window);
GST_DEBUG_OBJECT (ctx->element, "Using window handle %p", (gpointer) window);
return window != 0;
}
void
gst_egl_adaptation_set_window (GstEglAdaptationContext * ctx, guintptr window)
{
ctx->window = (EGLNativeWindowType) window;
}
void
gst_egl_adaptation_init (GstEglAdaptationContext * ctx)
{
ctx->eglglesctx = g_new0 (GstEglGlesRenderContext, 1);
}
void
gst_egl_adaptation_deinit (GstEglAdaptationContext * ctx)
{
g_free (ctx->eglglesctx);
}
void
gst_egl_adaptation_destroy_surface (GstEglAdaptationContext * ctx)
{
if (ctx->eglglesctx->surface) {
eglDestroySurface (gst_egl_display_get (ctx->display),
ctx->eglglesctx->surface);
ctx->eglglesctx->surface = NULL;
ctx->have_surface = FALSE;
}
}
void
gst_egl_adaptation_destroy_context (GstEglAdaptationContext * ctx)
{
if (ctx->eglglesctx->eglcontext) {
eglDestroyContext (gst_egl_display_get (ctx->display),
ctx->eglglesctx->eglcontext);
ctx->eglglesctx->eglcontext = NULL;
}
}
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