gstreamer/subprojects/gst-plugins-base/tests/check/libs/gstglcontext.c

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/* GStreamer
*
* Copyright (C) 2013 Matthew Waters <ystreet00@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 <gst/check/gstcheck.h>
#include <gst/gl/gl.h>
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#include <gst/gl/gstglfuncs.h>
#include <stdio.h>
static GstGLDisplay *display;
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static void
setup (void)
{
display = gst_gl_display_new ();
}
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static void
teardown (void)
{
gst_object_unref (display);
}
static GstGLMemory *gl_tex, *gl_tex2;
static GLuint vbo, vbo_indices, vao;
static GstGLFramebuffer *fbo, *fbo2;
static GstGLShader *shader;
static GLint shader_attr_position_loc;
static GLint shader_attr_texture_loc;
static const GLfloat vertices[] = {
/* x, y, z, s, t */
1.0f, 1.0f, 0.0f, 1.0f, 0.0f,
-1.0f, 1.0f, 0.0f, 0.0f, 0.0f,
-1.0f, -1.0f, 0.0f, 0.0f, 1.0f,
1.0f, -1.0f, 0.0f, 1.0f, 1.0f
};
static const GLushort indices[] = { 0, 1, 2, 0, 2, 3 };
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static void
init (gpointer data)
{
GstGLContext *context = data;
GError *error = NULL;
GstVideoInfo v_info;
GstGLMemoryAllocator *allocator;
GstGLVideoAllocationParams *params;
gst_video_info_set_format (&v_info, GST_VIDEO_FORMAT_RGBA, 320, 240);
allocator = gst_gl_memory_allocator_get_default (context);
params =
gst_gl_video_allocation_params_new (context, NULL, &v_info, 0, NULL,
GST_GL_TEXTURE_TARGET_2D, GST_GL_RGBA);
/* has to be called in the thread that is going to use the framebuffer */
fbo = gst_gl_framebuffer_new_with_default_depth (context, 320, 240);
fail_if (fbo == NULL, "failed to create framebuffer object");
gl_tex =
(GstGLMemory *) gst_gl_base_memory_alloc ((GstGLBaseMemoryAllocator *)
allocator, (GstGLAllocationParams *) params);
gl_tex2 =
(GstGLMemory *) gst_gl_base_memory_alloc ((GstGLBaseMemoryAllocator *)
allocator, (GstGLAllocationParams *) params);
gst_object_unref (allocator);
gst_gl_allocation_params_free ((GstGLAllocationParams *) params);
fail_if (gl_tex == NULL, "failed to create texture");
shader = gst_gl_shader_new_default (context, &error);
fail_if (shader == NULL, "failed to create shader object: %s",
error->message);
shader_attr_position_loc =
gst_gl_shader_get_attribute_location (shader, "a_position");
shader_attr_texture_loc =
gst_gl_shader_get_attribute_location (shader, "a_texcoord");
}
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static void
deinit (gpointer data)
{
GstGLContext *context = data;
GstGLFuncs *gl = context->gl_vtable;
if (vao)
gl->DeleteVertexArrays (1, &vao);
gst_object_unref (fbo);
gst_object_unref (shader);
gst_memory_unref (GST_MEMORY_CAST (gl_tex));
gst_memory_unref (GST_MEMORY_CAST (gl_tex2));
}
static gboolean
clear_tex (gpointer data)
{
GstGLContext *context = data;
GstGLFuncs *gl = context->gl_vtable;
static gfloat r = 0.0, g = 0.0, b = 0.0;
gl->ClearColor (r, g, b, 1.0);
gl->Clear (GL_COLOR_BUFFER_BIT);
r = r > 1.0 ? 0.0 : r + 0.03;
g = g > 1.0 ? 0.0 : g + 0.01;
b = b > 1.0 ? 0.0 : b + 0.015;
return TRUE;
}
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static void
draw_tex (gpointer data)
{
gst_gl_framebuffer_draw_to_texture (fbo, gl_tex,
(GstGLFramebufferFunc) clear_tex, data);
}
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static void
_bind_buffer (GstGLContext * context)
{
const GstGLFuncs *gl = context->gl_vtable;
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, vbo_indices);
gl->BindBuffer (GL_ARRAY_BUFFER, vbo);
/* Load the vertex position */
gl->VertexAttribPointer (shader_attr_position_loc, 3, GL_FLOAT, GL_FALSE,
5 * sizeof (GLfloat), (void *) 0);
/* Load the texture coordinate */
gl->VertexAttribPointer (shader_attr_texture_loc, 2, GL_FLOAT, GL_FALSE,
5 * sizeof (GLfloat), (void *) (3 * sizeof (GLfloat)));
gl->EnableVertexAttribArray (shader_attr_position_loc);
gl->EnableVertexAttribArray (shader_attr_texture_loc);
}
static void
_unbind_buffer (GstGLContext * context)
{
const GstGLFuncs *gl = context->gl_vtable;
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->DisableVertexAttribArray (shader_attr_position_loc);
gl->DisableVertexAttribArray (shader_attr_texture_loc);
}
static void
init_blit (gpointer data)
{
GstGLContext *context = data;
const GstGLFuncs *gl = context->gl_vtable;
if (!vbo) {
if (gl->GenVertexArrays) {
gl->GenVertexArrays (1, &vao);
gl->BindVertexArray (vao);
}
gl->GenBuffers (1, &vbo);
gl->BindBuffer (GL_ARRAY_BUFFER, vbo);
gl->BufferData (GL_ARRAY_BUFFER, 4 * 5 * sizeof (GLfloat), vertices,
GL_STATIC_DRAW);
gl->GenBuffers (1, &vbo_indices);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, vbo_indices);
gl->BufferData (GL_ELEMENT_ARRAY_BUFFER, sizeof (indices), indices,
GL_STATIC_DRAW);
if (gl->GenVertexArrays) {
_bind_buffer (context);
gl->BindVertexArray (0);
}
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
}
/* has to be called in the thread that is going to use the framebuffer */
fbo2 = gst_gl_framebuffer_new_with_default_depth (context, 320, 240);
fail_if (fbo2 == NULL, "failed to create framebuffer object");
}
static void
deinit_blit (gpointer data)
{
GstGLContext *context = data;
const GstGLFuncs *gl = context->gl_vtable;
if (vbo)
gl->DeleteBuffers (1, &vbo);
vbo = 0;
if (vbo_indices)
gl->DeleteBuffers (1, &vbo_indices);
vbo_indices = 0;
if (vao)
gl->DeleteVertexArrays (1, &vao);
vao = 0;
gst_object_unref (fbo2);
fbo2 = NULL;
}
static gboolean
blit_tex (gpointer data)
{
GstGLContext *context = data;
const GstGLFuncs *gl = context->gl_vtable;
gl->Clear (GL_COLOR_BUFFER_BIT);
gst_gl_shader_use (shader);
gl->ActiveTexture (GL_TEXTURE0);
gl->BindTexture (GL_TEXTURE_2D, gst_gl_memory_get_texture_id (gl_tex));
gst_gl_shader_set_uniform_1i (shader, "s_texture", 0);
if (gl->GenVertexArrays)
gl->BindVertexArray (vao);
_bind_buffer (context);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
if (gl->GenVertexArrays)
gl->BindVertexArray (0);
else
_unbind_buffer (context);
return TRUE;
}
static void
draw_render (gpointer data)
{
gst_gl_framebuffer_draw_to_texture (fbo2, gl_tex2,
(GstGLFramebufferFunc) blit_tex, data);
}
GST_START_TEST (test_share)
{
GstGLContext *context;
GstGLWindow *window;
GstGLContext *other_context;
GstGLWindow *other_window;
GError *error = NULL;
gint i = 0;
context = gst_gl_context_new (display);
window = gst_gl_window_new (display);
gst_gl_context_set_window (context, window);
gst_gl_context_create (context, 0, &error);
fail_if (error != NULL, "Error creating master context %s\n",
error ? error->message : "Unknown Error");
other_window = gst_gl_window_new (display);
other_context = gst_gl_context_new (display);
gst_gl_context_set_window (other_context, other_window);
gst_gl_context_create (other_context, context, &error);
fail_if (error != NULL, "Error creating secondary context %s\n",
error ? error->message : "Unknown Error");
/* make the window visible */
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gst_gl_window_set_preferred_size (window, 320, 240);
gst_gl_window_draw (window);
gst_gl_window_send_message (other_window, GST_GL_WINDOW_CB (init),
other_context);
gst_gl_window_send_message (window, GST_GL_WINDOW_CB (init_blit), context);
while (i < 10) {
gst_gl_window_send_message (other_window, GST_GL_WINDOW_CB (draw_tex),
context);
gst_gl_window_send_message (window, GST_GL_WINDOW_CB (draw_render),
context);
i++;
}
gst_gl_window_send_message (other_window, GST_GL_WINDOW_CB (deinit),
other_context);
gst_gl_window_send_message (window, GST_GL_WINDOW_CB (deinit_blit), context);
gst_object_unref (window);
gst_object_unref (other_window);
gst_object_unref (other_context);
gst_object_unref (context);
}
GST_END_TEST;
static void
accum_true (GstGLContext * context, gpointer data)
{
gint *i = data;
*i = 1;
}
static void
check_wrapped (gpointer data)
{
GstGLContext *wrapped_context = data;
GError *error = NULL;
gint i = 0;
gboolean ret;
/* check that scheduling on an unactivated wrapped context asserts */
ASSERT_CRITICAL (gst_gl_context_thread_add (wrapped_context,
(GstGLContextThreadFunc) accum_true, &i));
fail_if (i != 0);
/* check that scheduling on an activated context succeeds */
gst_gl_context_activate (wrapped_context, TRUE);
gst_gl_context_thread_add (wrapped_context,
(GstGLContextThreadFunc) accum_true, &i);
fail_if (i != 1);
/* check filling out the wrapped context's info */
fail_if (wrapped_context->gl_vtable->TexImage2D != NULL);
ret = gst_gl_context_fill_info (wrapped_context, &error);
fail_if (!ret, "error received %s\n",
error ? error->message : "Unknown error");
fail_if (wrapped_context->gl_vtable->TexImage2D == NULL);
gst_gl_context_activate (wrapped_context, FALSE);
}
GST_START_TEST (test_wrapped_context)
{
GstGLContext *context, *other_context, *wrapped_context;
GstGLWindow *window, *other_window;
GError *error = NULL;
gint i = 0;
guintptr handle, handle2;
GstGLPlatform platform, platform2;
GstGLAPI apis, apis2;
context = gst_gl_context_new (display);
window = gst_gl_window_new (display);
gst_gl_context_set_window (context, window);
gst_gl_context_create (context, 0, &error);
fail_if (error != NULL, "Error creating master context %s\n",
error ? error->message : "Unknown Error");
handle = gst_gl_context_get_gl_context (context);
platform = gst_gl_context_get_gl_platform (context);
apis = gst_gl_context_get_gl_api (context);
wrapped_context =
gst_gl_context_new_wrapped (display, handle, platform, apis);
handle2 = gst_gl_context_get_gl_context (wrapped_context);
platform2 = gst_gl_context_get_gl_platform (wrapped_context);
apis2 = gst_gl_context_get_gl_api (wrapped_context);
fail_if (handle != handle2);
fail_if (platform != platform2);
fail_if (apis != apis2);
other_context = gst_gl_context_new (display);
other_window = gst_gl_window_new (display);
gst_gl_context_set_window (other_context, other_window);
gst_gl_context_create (other_context, wrapped_context, &error);
fail_if (error != NULL, "Error creating secondary context %s\n",
error ? error->message : "Unknown Error");
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gst_gl_window_set_preferred_size (window, 320, 240);
gst_gl_window_draw (window);
gst_gl_window_send_message (other_window, GST_GL_WINDOW_CB (init),
other_context);
gst_gl_window_send_message (window, GST_GL_WINDOW_CB (init_blit), context);
while (i < 10) {
gst_gl_window_send_message (other_window, GST_GL_WINDOW_CB (draw_tex),
context);
gst_gl_window_send_message (window, GST_GL_WINDOW_CB (draw_render),
context);
i++;
}
gst_gl_window_send_message (window, GST_GL_WINDOW_CB (check_wrapped),
wrapped_context);
gst_gl_window_send_message (other_window, GST_GL_WINDOW_CB (deinit),
other_context);
gst_gl_window_send_message (window, GST_GL_WINDOW_CB (deinit_blit), context);
gst_object_unref (other_context);
gst_object_unref (other_window);
gst_object_unref (window);
gst_object_unref (context);
gst_object_unref (wrapped_context);
}
GST_END_TEST;
struct context_info
{
GstGLAPI api;
guint major;
guint minor;
GstGLPlatform platform;
guintptr handle;
};
static void
_fill_context_info (GstGLContext * context, struct context_info *info)
{
info->handle = gst_gl_context_get_current_gl_context (info->platform);
info->api =
gst_gl_context_get_current_gl_api (info->platform, &info->major,
&info->minor);
}
GST_START_TEST (test_current_context)
{
GstGLContext *context;
GError *error = NULL;
guintptr handle;
GstGLPlatform platform;
GstGLAPI api;
gint major, minor;
struct context_info info;
context = gst_gl_context_new (display);
gst_gl_context_create (context, 0, &error);
fail_if (error != NULL, "Error creating master context %s\n",
error ? error->message : "Unknown Error");
handle = gst_gl_context_get_gl_context (context);
platform = gst_gl_context_get_gl_platform (context);
api = gst_gl_context_get_gl_api (context);
gst_gl_context_get_gl_version (context, &major, &minor);
info.platform = platform;
gst_gl_context_thread_add (context,
(GstGLContextThreadFunc) _fill_context_info, &info);
fail_if (info.platform != platform);
fail_if (info.api != api);
fail_if (info.major != major);
fail_if (info.minor != minor);
fail_if (info.handle != handle);
gst_object_unref (context);
}
GST_END_TEST;
GST_START_TEST (test_context_can_share)
{
GstGLContext *c1, *c2, *c3;
GError *error = NULL;
c1 = gst_gl_context_new (display);
gst_gl_context_create (c1, NULL, &error);
fail_if (error != NULL, "Error creating context %s\n",
error ? error->message : "Unknown Error");
c2 = gst_gl_context_new (display);
gst_gl_context_create (c2, c1, &error);
fail_if (error != NULL, "Error creating context %s\n",
error ? error->message : "Unknown Error");
fail_unless (gst_gl_context_can_share (c1, c2));
fail_unless (gst_gl_context_can_share (c2, c1));
c3 = gst_gl_context_new (display);
gst_gl_context_create (c3, c2, &error);
fail_if (error != NULL, "Error creating context %s\n",
error ? error->message : "Unknown Error");
fail_unless (gst_gl_context_can_share (c1, c3));
fail_unless (gst_gl_context_can_share (c3, c1));
fail_unless (gst_gl_context_can_share (c2, c3));
fail_unless (gst_gl_context_can_share (c3, c2));
/* destroy the middle context */
gst_object_unref (c2);
c2 = NULL;
fail_unless (gst_gl_context_can_share (c1, c3));
fail_unless (gst_gl_context_can_share (c3, c1));
gst_object_unref (c1);
gst_object_unref (c3);
}
GST_END_TEST;
GST_START_TEST (test_is_shared)
{
GstGLContext *c1, *c2;
GError *error = NULL;
c1 = gst_gl_context_new (display);
gst_gl_context_create (c1, NULL, &error);
fail_if (error != NULL, "Error creating context %s\n",
error ? error->message : "Unknown Error");
c2 = gst_gl_context_new (display);
gst_gl_context_create (c2, c1, &error);
fail_if (error != NULL, "Error creating context %s\n",
error ? error->message : "Unknown Error");
fail_unless (gst_gl_context_is_shared (c1));
fail_unless (gst_gl_context_is_shared (c2));
gst_object_unref (c2);
c2 = NULL;
fail_unless (!gst_gl_context_is_shared (c1));
gst_object_unref (c1);
}
GST_END_TEST;
GST_START_TEST (test_display_list)
{
GstGLContext *c1, *c2;
GError *error = NULL;
c1 = gst_gl_context_new (display);
gst_gl_context_create (c1, NULL, &error);
fail_if (error != NULL, "Error creating context %s\n",
error ? error->message : "Unknown Error");
GST_OBJECT_LOCK (display);
{
/* no context added so get should return NULL */
GstGLContext *tmp =
gst_gl_display_get_gl_context_for_thread (display, NULL);
fail_unless (tmp == NULL);
}
fail_unless (gst_gl_display_add_context (display, c1));
/* re-adding the same context is a no-op */
fail_unless (gst_gl_display_add_context (display, c1));
{
GThread *thread;
GstGLContext *tmp;
thread = gst_gl_context_get_thread (c1);
fail_unless (thread != NULL);
tmp = gst_gl_display_get_gl_context_for_thread (display, thread);
fail_unless (tmp == c1);
g_thread_unref (thread);
gst_object_unref (tmp);
tmp = gst_gl_display_get_gl_context_for_thread (display, NULL);
fail_unless (tmp == c1);
gst_object_unref (tmp);
}
c2 = gst_gl_context_new (display);
gst_gl_context_create (c2, c1, &error);
fail_if (error != NULL, "Error creating context %s\n",
error ? error->message : "Unknown Error");
fail_unless (gst_gl_display_add_context (display, c2));
/* re-adding the same context is a no-op */
fail_unless (gst_gl_display_add_context (display, c2));
{
GThread *thread;
GstGLContext *tmp;
thread = gst_gl_context_get_thread (c2);
fail_unless (thread != NULL);
tmp = gst_gl_display_get_gl_context_for_thread (display, thread);
fail_unless (tmp == c2);
g_thread_unref (thread);
gst_object_unref (tmp);
/* undefined which context will be returned for the NULL thread */
tmp = gst_gl_display_get_gl_context_for_thread (display, NULL);
fail_unless (tmp != NULL);
gst_object_unref (tmp);
}
gst_object_unref (c1);
/* c1 is now dead */
{
GstGLContext *tmp;
tmp = gst_gl_display_get_gl_context_for_thread (display, NULL);
fail_unless (tmp == c2);
gst_object_unref (tmp);
}
GST_OBJECT_UNLOCK (display);
gst_object_unref (c2);
/* c2 is now dead */
{
/* no more contexts alive */
GstGLContext *tmp =
gst_gl_display_get_gl_context_for_thread (display, NULL);
fail_unless (tmp == NULL);
}
}
GST_END_TEST;
GST_START_TEST (test_display_list_remove)
{
GThread *c1_thread;
GstGLContext *c1, *tmp;
GError *error = NULL;
c1 = gst_gl_context_new (display);
gst_gl_context_create (c1, NULL, &error);
fail_if (error != NULL, "Error creating context %s\n",
error ? error->message : "Unknown Error");
c1_thread = gst_gl_context_get_thread (c1);
fail_unless (c1_thread != NULL);
GST_OBJECT_LOCK (display);
fail_unless (gst_gl_display_add_context (display, c1));
tmp = gst_gl_display_get_gl_context_for_thread (display, c1_thread);
fail_unless (tmp == c1);
gst_object_unref (tmp);
gst_gl_display_remove_context (display, c1);
tmp = gst_gl_display_get_gl_context_for_thread (display, c1_thread);
fail_unless (tmp == NULL);
tmp = gst_gl_display_get_gl_context_for_thread (display, NULL);
fail_unless (tmp == NULL);
GST_OBJECT_UNLOCK (display);
g_thread_unref (c1_thread);
gst_object_unref (c1);
}
GST_END_TEST;
GST_START_TEST (test_display_list_readd)
{
GThread *c1_thread;
GstGLContext *c1, *tmp;
GError *error = NULL;
c1 = gst_gl_context_new (display);
gst_gl_context_create (c1, NULL, &error);
fail_if (error != NULL, "Error creating context %s\n",
error ? error->message : "Unknown Error");
c1_thread = gst_gl_context_get_thread (c1);
fail_unless (c1_thread != NULL);
GST_OBJECT_LOCK (display);
fail_unless (gst_gl_display_add_context (display, c1));
tmp = gst_gl_display_get_gl_context_for_thread (display, c1_thread);
fail_unless (tmp == c1);
gst_object_unref (tmp);
gst_gl_display_remove_context (display, c1);
tmp = gst_gl_display_get_gl_context_for_thread (display, c1_thread);
fail_unless (tmp == NULL);
tmp = gst_gl_display_get_gl_context_for_thread (display, NULL);
fail_unless (tmp == NULL);
fail_unless (gst_gl_display_add_context (display, c1));
tmp = gst_gl_display_get_gl_context_for_thread (display, c1_thread);
fail_unless (tmp == c1);
gst_object_unref (tmp);
tmp = gst_gl_display_get_gl_context_for_thread (display, NULL);
fail_unless (tmp == c1);
gst_object_unref (tmp);
GST_OBJECT_UNLOCK (display);
g_thread_unref (c1_thread);
gst_object_unref (c1);
}
GST_END_TEST;
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static Suite *
gst_gl_context_suite (void)
{
Suite *s = suite_create ("GstGLContext");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_checked_fixture (tc_chain, setup, teardown);
tcase_add_test (tc_chain, test_share);
tcase_add_test (tc_chain, test_wrapped_context);
tcase_add_test (tc_chain, test_current_context);
tcase_add_test (tc_chain, test_context_can_share);
tcase_add_test (tc_chain, test_is_shared);
tcase_add_test (tc_chain, test_display_list);
tcase_add_test (tc_chain, test_display_list_remove);
tcase_add_test (tc_chain, test_display_list_readd);
return s;
}
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GST_CHECK_MAIN (gst_gl_context);