/* * GStreamer * Copyright (C) 2007 David A. Schleef * Copyright (C) 2008 Julien Isorce * Copyright (C) 2008 Filippo Argiolas * * 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. */ #define GLIB_DISABLE_DEPRECATION_WARNINGS #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include "gstgldisplay.h" #include "gstgldownload.h" #include "gstglmemory.h" #ifndef GLEW_VERSION_MAJOR #define GLEW_VERSION_MAJOR 4 #endif #ifndef GLEW_VERSION_MINOR #define GLEW_VERSION_MINOR 0 #endif /* * gst-launch-0.10 --gst-debug=gldisplay:N pipeline * N=1: errors * N=2: errors warnings * N=3: errors warnings infos * N=4: errors warnings infos * N=5: errors warnings infos logs */ GST_DEBUG_CATEGORY_STATIC (gst_gl_display_debug); #define GST_CAT_DEFAULT gst_gl_display_debug #define DEBUG_INIT \ GST_DEBUG_CATEGORY_INIT (gst_gl_display_debug, "gldisplay", 0, "opengl display"); G_DEFINE_TYPE_WITH_CODE (GstGLDisplay, gst_gl_display, G_TYPE_OBJECT, DEBUG_INIT); static void gst_gl_display_finalize (GObject * object); /* Called in the gl thread, protected by lock and unlock */ gpointer gst_gl_display_thread_create_context (GstGLDisplay * display); void gst_gl_display_thread_destroy_context (GstGLDisplay * display); void gst_gl_display_thread_run_generic (GstGLDisplay * display); #ifdef OPENGL_ES2 void gst_gl_display_thread_init_redisplay (GstGLDisplay * display); #endif void gst_gl_display_thread_gen_fbo (GstGLDisplay * display); void gst_gl_display_thread_use_fbo (GstGLDisplay * display); void gst_gl_display_thread_use_fbo_v2 (GstGLDisplay * display); void gst_gl_display_thread_del_fbo (GstGLDisplay * display); void gst_gl_display_thread_gen_shader (GstGLDisplay * display); void gst_gl_display_thread_del_shader (GstGLDisplay * display); /* private methods */ void gst_gl_display_lock (GstGLDisplay * display); void gst_gl_display_unlock (GstGLDisplay * display); void gst_gl_display_on_resize (GstGLDisplay * display, gint width, gint height); void gst_gl_display_on_draw (GstGLDisplay * display); void gst_gl_display_on_close (GstGLDisplay * display); void gst_gl_display_del_texture_thread (GstGLDisplay * display, GLuint * pTexture); void gst_gl_display_gen_texture_window_cb (GstGLDisplay * display); //------------------------------------------------------------ //---------------------- For klass GstGLDisplay --------------- //------------------------------------------------------------ static void gst_gl_display_class_init (GstGLDisplayClass * klass) { G_OBJECT_CLASS (klass)->finalize = gst_gl_display_finalize; gst_gl_window_init_platform (); } static void gst_gl_display_init (GstGLDisplay * display) { //thread safe display->mutex = g_mutex_new (); //gl context display->gl_thread = NULL; display->gl_window = NULL; display->isAlive = TRUE; //conditions display->cond_create_context = g_cond_new (); display->cond_destroy_context = g_cond_new (); //action redisplay display->redisplay_texture = 0; display->redisplay_texture_width = 0; display->redisplay_texture_height = 0; display->keep_aspect_ratio = FALSE; #ifdef OPENGL_ES2 display->redisplay_shader = NULL; display->redisplay_attr_position_loc = 0; display->redisplay_attr_texture_loc = 0; #endif //action gen and del texture display->gen_texture = 0; display->gen_texture_width = 0; display->gen_texture_height = 0; display->gen_texture_video_format = GST_VIDEO_FORMAT_UNKNOWN; //client callbacks display->clientReshapeCallback = NULL; display->clientDrawCallback = NULL; display->client_data = NULL; display->colorspace_conversion = GST_GL_DISPLAY_CONVERSION_GLSL; //foreign gl context display->external_gl_context = 0; //filter gen fbo display->gen_fbo_width = 0; display->gen_fbo_height = 0; display->generated_fbo = 0; display->generated_depth_buffer = 0; //filter use fbo display->use_fbo = 0; display->use_depth_buffer = 0; display->use_fbo_texture = 0; display->use_fbo_width = 0; display->use_fbo_height = 0; display->use_fbo_scene_cb = NULL; display->use_fbo_scene_cb_v2 = NULL; display->use_fbo_proj_param1 = 0; display->use_fbo_proj_param2 = 0; display->use_fbo_proj_param3 = 0; display->use_fbo_proj_param4 = 0; display->use_fbo_projection = 0; display->use_fbo_stuff = NULL; display->input_texture_width = 0; display->input_texture_height = 0; display->input_texture = 0; //filter del fbo display->del_fbo = 0; display->del_depth_buffer = 0; //action gen and del shader display->gen_shader_fragment_source = NULL; display->gen_shader_vertex_source = NULL; display->gen_shader = NULL; display->del_shader = NULL; display->uploads = NULL; display->downloads = NULL; #ifdef OPENGL_ES2 display->redisplay_vertex_shader_str = "attribute vec4 a_position; \n" "attribute vec2 a_texCoord; \n" "varying vec2 v_texCoord; \n" "void main() \n" "{ \n" " gl_Position = a_position; \n" " v_texCoord = a_texCoord; \n" "} \n"; display->redisplay_fragment_shader_str = "precision mediump float; \n" "varying vec2 v_texCoord; \n" "uniform sampler2D s_texture; \n" "void main() \n" "{ \n" " gl_FragColor = texture2D( s_texture, v_texCoord );\n" "} \n"; #endif display->error_message = NULL; gst_gl_memory_init (); } static void gst_gl_display_finalize (GObject * object) { GstGLDisplay *display = GST_GL_DISPLAY (object); if (display->mutex && display->gl_window) { gst_gl_display_lock (display); gst_gl_window_set_resize_callback (display->gl_window, NULL, NULL); gst_gl_window_set_draw_callback (display->gl_window, NULL, NULL); gst_gl_window_set_close_callback (display->gl_window, NULL, NULL); GST_INFO ("send quit gl window loop"); gst_gl_window_quit_loop (display->gl_window, GST_GL_WINDOW_CB (gst_gl_display_thread_destroy_context), display); GST_INFO ("quit sent to gl window loop"); g_cond_wait (display->cond_destroy_context, display->mutex); GST_INFO ("quit received from gl window"); gst_gl_display_unlock (display); } if (display->gl_thread) { gpointer ret = g_thread_join (display->gl_thread); GST_INFO ("gl thread joined"); if (ret != NULL) GST_ERROR ("gl thread returned a not null pointer"); display->gl_thread = NULL; } if (display->mutex) { g_mutex_free (display->mutex); display->mutex = NULL; } if (display->cond_destroy_context) { g_cond_free (display->cond_destroy_context); display->cond_destroy_context = NULL; } if (display->cond_create_context) { g_cond_free (display->cond_create_context); display->cond_create_context = NULL; } if (display->clientReshapeCallback) display->clientReshapeCallback = NULL; if (display->clientDrawCallback) display->clientDrawCallback = NULL; if (display->client_data) display->client_data = NULL; if (display->use_fbo_scene_cb) display->use_fbo_scene_cb = NULL; if (display->use_fbo_scene_cb_v2) display->use_fbo_scene_cb_v2 = NULL; if (display->use_fbo_stuff) display->use_fbo_stuff = NULL; if (display->error_message) { g_free (display->error_message); display->error_message = NULL; } if (display->uploads) { g_slist_free_full (display->uploads, g_object_unref); display->uploads = NULL; } if (display->downloads) { g_slist_free_full (display->downloads, g_object_unref); display->downloads = NULL; } } //------------------------------------------------------------ //------------------ BEGIN GL THREAD PROCS ------------------- //------------------------------------------------------------ /* Called in the gl thread */ void gst_gl_display_set_error (GstGLDisplay * display, const char *format, ...) { va_list args; if (display->error_message) g_free (display->error_message); va_start (args, format); display->error_message = g_strdup_vprintf (format, args); va_end (args); GST_WARNING (display->error_message); display->isAlive = FALSE; } gpointer gst_gl_display_thread_create_context (GstGLDisplay * display) { GLenum err = GLEW_OK; gst_gl_display_lock (display); display->gl_window = gst_gl_window_new (display->external_gl_context); if (!display->gl_window) { gst_gl_display_set_error (display, "Failed to create gl window"); g_cond_signal (display->cond_create_context); gst_gl_display_unlock (display); return NULL; } GST_INFO ("gl window created"); #ifndef OPENGL_ES2 err = glewInit (); #endif if (err != GLEW_OK) { #ifndef OPENGL_ES2 gst_gl_display_set_error (display, "Failed to init GLEW: %s", glewGetErrorString (err)); #endif } else { #ifndef OPENGL_ES2 //OpenGL > 1.2.0 and Glew > 1.4.0 GString *opengl_version = NULL; gint opengl_version_major = 0; gint opengl_version_minor = 0; #endif GLenum gl_err = GL_NO_ERROR; if (glGetString (GL_VERSION)) GST_INFO ("GL_VERSION: %s", glGetString (GL_VERSION)); #ifndef OPENGL_ES2 GST_INFO ("GLEW_VERSION: %s", glewGetString (GLEW_VERSION)); #endif if (glGetString (GL_SHADING_LANGUAGE_VERSION)) GST_INFO ("GL_SHADING_LANGUAGE_VERSION: %s", glGetString (GL_SHADING_LANGUAGE_VERSION)); else GST_INFO ("Your driver does not support GLSL (OpenGL Shading Language)"); if (glGetString (GL_VENDOR)) GST_INFO ("GL_VENDOR: %s", glGetString (GL_VENDOR)); if (glGetString (GL_RENDERER)) GST_INFO ("GL_RENDERER: %s", glGetString (GL_RENDERER)); gl_err = glGetError (); if (gl_err != GL_NO_ERROR) { gst_gl_display_set_error (display, "glGetString error: 0x%x", gl_err); } #ifndef OPENGL_ES2 if (glGetString (GL_VERSION) && gl_err == GL_NO_ERROR) { opengl_version = g_string_truncate (g_string_new ((gchar *) glGetString (GL_VERSION)), 3); sscanf (opengl_version->str, "%d.%d", &opengl_version_major, &opengl_version_minor); g_string_free (opengl_version, TRUE); if ((opengl_version_major < 1) || (GLEW_VERSION_MAJOR < 1) || (opengl_version_major < 2 && opengl_version_major >= 1 && opengl_version_minor < 2) || (GLEW_VERSION_MAJOR < 2 && GLEW_VERSION_MAJOR >= 1 && GLEW_VERSION_MINOR < 4)) { //turn off the pipeline, the old drivers are not yet supported gst_gl_display_set_error (display, "Required OpenGL >= 1.2.0 and Glew >= 1.4.0"); } } #else if (!GL_ES_VERSION_2_0) { gst_gl_display_set_error (display, "Required OpenGL ES > 2.0"); } #endif } //setup callbacks gst_gl_window_set_resize_callback (display->gl_window, GST_GL_WINDOW_CB2 (gst_gl_display_on_resize), display); gst_gl_window_set_draw_callback (display->gl_window, GST_GL_WINDOW_CB (gst_gl_display_on_draw), display); gst_gl_window_set_close_callback (display->gl_window, GST_GL_WINDOW_CB (gst_gl_display_on_close), display); g_cond_signal (display->cond_create_context); gst_gl_display_unlock (display); gst_gl_window_run_loop (display->gl_window); GST_INFO ("loop exited\n"); gst_gl_display_lock (display); display->isAlive = FALSE; g_object_unref (G_OBJECT (display->gl_window)); display->gl_window = NULL; g_cond_signal (display->cond_destroy_context); gst_gl_display_unlock (display); return NULL; } /* Called in the gl thread */ void gst_gl_display_thread_destroy_context (GstGLDisplay * display) { #ifdef OPENGL_ES2 if (display->redisplay_shader) { g_object_unref (G_OBJECT (display->redisplay_shader)); display->redisplay_shader = NULL; } #endif GST_INFO ("Context destroyed"); } void gst_gl_display_thread_run_generic (GstGLDisplay * display) { GST_TRACE ("running function:%p data:%p", display->generic_callback, display->data); display->generic_callback (display, display->data); } #ifdef OPENGL_ES2 /* Called in the gl thread */ void gst_gl_display_thread_init_redisplay (GstGLDisplay * display) { GError *error = NULL; display->redisplay_shader = gst_gl_shader_new (); gst_gl_shader_set_vertex_source (display->redisplay_shader, display->redisplay_vertex_shader_str); gst_gl_shader_set_fragment_source (display->redisplay_shader, display->redisplay_fragment_shader_str); gst_gl_shader_compile (display->redisplay_shader, &error); if (error) { gst_gl_display_set_error (display, "%s", error->message); g_error_free (error); error = NULL; gst_gl_shader_use (NULL); } else { display->redisplay_attr_position_loc = gst_gl_shader_get_attribute_location (display->redisplay_shader, "a_position"); display->redisplay_attr_texture_loc = gst_gl_shader_get_attribute_location (display->redisplay_shader, "a_texCoord"); } } #endif /* Called in the gl thread */ void gst_gl_display_thread_gen_fbo (GstGLDisplay * display) { //a texture must be attached to the FBO GLuint fake_texture = 0; GST_TRACE ("creating FBO dimensions:%ux%u", display->gen_fbo_width, display->gen_fbo_height); //-- generate frame buffer object if (!GLEW_EXT_framebuffer_object) { //turn off the pipeline because Frame buffer object is a not present gst_gl_display_set_error (display, "Context, EXT_framebuffer_object not supported"); return; } //setup FBO glGenFramebuffersEXT (1, &display->generated_fbo); glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, display->generated_fbo); //setup the render buffer for depth glGenRenderbuffersEXT (1, &display->generated_depth_buffer); glBindRenderbufferEXT (GL_RENDERBUFFER_EXT, display->generated_depth_buffer); #ifndef OPENGL_ES2 glRenderbufferStorageEXT (GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT, display->gen_fbo_width, display->gen_fbo_height); glRenderbufferStorageEXT (GL_RENDERBUFFER_EXT, GL_DEPTH24_STENCIL8_EXT, display->gen_fbo_width, display->gen_fbo_height); #else glRenderbufferStorageEXT (GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT16, display->gen_fbo_width, display->gen_fbo_height); #endif //setup a texture to render to glGenTextures (1, &fake_texture); glBindTexture (GL_TEXTURE_RECTANGLE_ARB, fake_texture); glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8, display->gen_fbo_width, display->gen_fbo_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL); glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); //attach the texture to the FBO to renderer to glFramebufferTexture2DEXT (GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_ARB, fake_texture, 0); //attach the depth render buffer to the FBO glFramebufferRenderbufferEXT (GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, display->generated_depth_buffer); #ifndef OPENGL_ES2 glFramebufferRenderbufferEXT (GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, display->generated_depth_buffer); #endif if (glCheckFramebufferStatusEXT (GL_FRAMEBUFFER_EXT) != GL_FRAMEBUFFER_COMPLETE_EXT) gst_gl_display_set_error (display, "GL framebuffer status incomplete"); //unbind the FBO glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, 0); glDeleteTextures (1, &fake_texture); } /* Called in the gl thread */ void gst_gl_display_thread_use_fbo (GstGLDisplay * display) { #ifdef OPENGL_ES2 GLint viewport_dim[4]; #endif GST_TRACE ("Binding v1 FBO %u dimensions:%ux%u with texture:%u " "dimensions:%ux%u", display->use_fbo, display->use_fbo_width, display->use_fbo_height, display->use_fbo_texture, display->input_texture_width, display->input_texture_height); glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, display->use_fbo); //setup a texture to render to glBindTexture (GL_TEXTURE_RECTANGLE_ARB, display->use_fbo_texture); //attach the texture to the FBO to renderer to glFramebufferTexture2DEXT (GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_ARB, display->use_fbo_texture, 0); if (GLEW_ARB_fragment_shader) gst_gl_shader_use (NULL); #ifndef OPENGL_ES2 glPushAttrib (GL_VIEWPORT_BIT); glMatrixMode (GL_PROJECTION); glPushMatrix (); glLoadIdentity (); switch (display->use_fbo_projection) { case GST_GL_DISPLAY_PROJECTION_ORTHO2D: gluOrtho2D (display->use_fbo_proj_param1, display->use_fbo_proj_param2, display->use_fbo_proj_param3, display->use_fbo_proj_param4); break; case GST_GL_DISPLAY_PROJECTION_PERSPECTIVE: gluPerspective (display->use_fbo_proj_param1, display->use_fbo_proj_param2, display->use_fbo_proj_param3, display->use_fbo_proj_param4); break; default: gst_gl_display_set_error (display, "Unknow fbo projection %d", display->use_fbo_projection); } glMatrixMode (GL_MODELVIEW); glPushMatrix (); glLoadIdentity (); #else // OPENGL_ES2 glGetIntegerv (GL_VIEWPORT, viewport_dim); #endif glViewport (0, 0, display->use_fbo_width, display->use_fbo_height); #ifndef OPENGL_ES2 glDrawBuffer (GL_COLOR_ATTACHMENT0_EXT); #endif glClearColor (0.0, 0.0, 0.0, 0.0); glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); //the opengl scene display->use_fbo_scene_cb (display->input_texture_width, display->input_texture_height, display->input_texture, display->use_fbo_stuff); #ifndef OPENGL_ES2 glDrawBuffer (GL_NONE); glMatrixMode (GL_PROJECTION); glPopMatrix (); glMatrixMode (GL_MODELVIEW); glPopMatrix (); glPopAttrib (); #else glViewport (viewport_dim[0], viewport_dim[1], viewport_dim[2], viewport_dim[3]); #endif glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, 0); } /* Called in a gl thread * Need full shader support */ void gst_gl_display_thread_use_fbo_v2 (GstGLDisplay * display) { GLint viewport_dim[4]; GST_TRACE ("Binding v2 FBO %u dimensions:%ux%u with texture:%u ", display->use_fbo, display->use_fbo_width, display->use_fbo_height, display->use_fbo_texture); glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, display->use_fbo); //setup a texture to render to glBindTexture (GL_TEXTURE_RECTANGLE_ARB, display->use_fbo_texture); //attach the texture to the FBO to renderer to glFramebufferTexture2DEXT (GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_ARB, display->use_fbo_texture, 0); glGetIntegerv (GL_VIEWPORT, viewport_dim); glViewport (0, 0, display->use_fbo_width, display->use_fbo_height); #ifndef OPENGL_ES2 glDrawBuffer (GL_COLOR_ATTACHMENT0_EXT); #endif glClearColor (0.0, 0.0, 0.0, 0.0); glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); //the opengl scene display->use_fbo_scene_cb_v2 (display->use_fbo_stuff); #ifndef OPENGL_ES2 glDrawBuffer (GL_NONE); #endif glViewport (viewport_dim[0], viewport_dim[1], viewport_dim[2], viewport_dim[3]); glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, 0); } /* Called in the gl thread */ void gst_gl_display_thread_del_fbo (GstGLDisplay * display) { GST_TRACE ("Deleting FBO %u", display->del_fbo); if (display->del_fbo) { glDeleteFramebuffersEXT (1, &display->del_fbo); display->del_fbo = 0; } if (display->del_depth_buffer) { glDeleteRenderbuffersEXT (1, &display->del_depth_buffer); display->del_depth_buffer = 0; } } /* Called in the gl thread */ void gst_gl_display_thread_gen_shader (GstGLDisplay * display) { GST_TRACE ("Generating shader %" GST_PTR_FORMAT, display->gen_shader); if (GLEW_ARB_fragment_shader) { if (display->gen_shader_vertex_source || display->gen_shader_fragment_source) { GError *error = NULL; display->gen_shader = gst_gl_shader_new (); if (display->gen_shader_vertex_source) gst_gl_shader_set_vertex_source (display->gen_shader, display->gen_shader_vertex_source); if (display->gen_shader_fragment_source) gst_gl_shader_set_fragment_source (display->gen_shader, display->gen_shader_fragment_source); gst_gl_shader_compile (display->gen_shader, &error); if (error) { gst_gl_display_set_error (display, "%s", error->message); g_error_free (error); error = NULL; gst_gl_shader_use (NULL); g_object_unref (G_OBJECT (display->gen_shader)); display->gen_shader = NULL; } } } else { gst_gl_display_set_error (display, "One of the filter required ARB_fragment_shader"); display->gen_shader = NULL; } } /* Called in the gl thread */ void gst_gl_display_thread_del_shader (GstGLDisplay * display) { GST_TRACE ("Deleting shader %" GST_PTR_FORMAT, display->del_shader); if (display->del_shader) { g_object_unref (G_OBJECT (display->del_shader)); display->del_shader = NULL; } } //------------------------------------------------------------ //------------------ BEGIN GL THREAD ACTIONS ----------------- //------------------------------------------------------------ //------------------------------------------------------------ //---------------------- BEGIN PRIVATE ----------------------- //------------------------------------------------------------ void gst_gl_display_on_resize (GstGLDisplay * display, gint width, gint height) { GST_TRACE ("GL Window resized to %ux%u", width, height); //check if a client reshape callback is registered if (display->clientReshapeCallback) display->clientReshapeCallback (width, height, display->client_data); //default reshape else { if (display->keep_aspect_ratio) { GstVideoRectangle src, dst, result; src.x = 0; src.y = 0; src.w = display->redisplay_texture_width; src.h = display->redisplay_texture_height; dst.x = 0; dst.y = 0; dst.w = width; dst.h = height; gst_video_sink_center_rect (src, dst, &result, TRUE); glViewport (result.x, result.y, result.w, result.h); } else { glViewport (0, 0, width, height); } #ifndef OPENGL_ES2 glMatrixMode (GL_PROJECTION); glLoadIdentity (); gluOrtho2D (0, width, 0, height); glMatrixMode (GL_MODELVIEW); #endif } } void gst_gl_display_on_draw (GstGLDisplay * display) { //check if tecture is ready for being drawn if (!display->redisplay_texture) return; //opengl scene GST_TRACE ("on draw"); //make sure that the environnement is clean if (display->colorspace_conversion == GST_GL_DISPLAY_CONVERSION_GLSL) glUseProgramObjectARB (0); #ifndef OPENGL_ES2 glDisable (GL_TEXTURE_RECTANGLE_ARB); #endif glBindTexture (GL_TEXTURE_RECTANGLE_ARB, 0); //check if a client draw callback is registered if (display->clientDrawCallback) { gboolean doRedisplay = display->clientDrawCallback (display->redisplay_texture, display->redisplay_texture_width, display->redisplay_texture_height, display->client_data); if (doRedisplay && display->gl_window) gst_gl_window_draw_unlocked (display->gl_window, display->redisplay_texture_width, display->redisplay_texture_height); } //default opengl scene else { #ifndef OPENGL_ES2 glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glMatrixMode (GL_PROJECTION); glLoadIdentity (); glBindTexture (GL_TEXTURE_RECTANGLE_ARB, display->redisplay_texture); glEnable (GL_TEXTURE_RECTANGLE_ARB); glBegin (GL_QUADS); /* gst images are top-down while opengl plane is bottom-up */ glTexCoord2i (display->redisplay_texture_width, 0); glVertex2f (1.0f, 1.0f); glTexCoord2i (0, 0); glVertex2f (-1.0f, 1.0f); glTexCoord2i (0, display->redisplay_texture_height); glVertex2f (-1.0f, -1.0f); glTexCoord2i (display->redisplay_texture_width, display->redisplay_texture_height); glVertex2f (1.0f, -1.0f); /*glTexCoord2i (display->redisplay_texture_width, 0); glVertex2i (1, -1); glTexCoord2i (0, 0); glVertex2f (-1.0f, -1.0f); glTexCoord2i (0, display->redisplay_texture_height); glVertex2f (-1.0f, 1.0f); glTexCoord2i (display->redisplay_texture_width, display->redisplay_texture_height); glVertex2f (1.0f, 1.0f); */ glEnd (); glDisable (GL_TEXTURE_RECTANGLE_ARB); #else //OPENGL_ES2 const GLfloat vVertices[] = { 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 }; GLushort indices[] = { 0, 1, 2, 0, 2, 3 }; glClear (GL_COLOR_BUFFER_BIT); gst_gl_shader_use (display->redisplay_shader); //Load the vertex position glVertexAttribPointer (display->redisplay_attr_position_loc, 3, GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), vVertices); //Load the texture coordinate glVertexAttribPointer (display->redisplay_attr_texture_loc, 2, GL_FLOAT, GL_FALSE, 5 * sizeof (GLfloat), &vVertices[3]); glEnableVertexAttribArray (display->redisplay_attr_position_loc); glEnableVertexAttribArray (display->redisplay_attr_texture_loc); glActiveTexture (GL_TEXTURE0); glBindTexture (GL_TEXTURE_2D, display->redisplay_texture); gst_gl_shader_set_uniform_1i (display->redisplay_shader, "s_texture", 0); glDrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices); #endif } //end default opengl scene } void gst_gl_display_on_close (GstGLDisplay * display) { gst_gl_display_set_error (display, "Output window was closed"); } void gst_gl_display_gen_texture_window_cb (GstGLDisplay * display) { gst_gl_display_gen_texture_thread (display, &display->gen_texture, display->gen_texture_video_format, display->gen_texture_width, display->gen_texture_height); } /* Generate a texture if no one is available in the pool * Called in the gl thread */ void gst_gl_display_gen_texture_thread (GstGLDisplay * display, GLuint * pTexture, GstVideoFormat v_format, GLint width, GLint height) { GST_TRACE ("Generating texture format:%u dimensions:%ux%u", v_format, width, height); glGenTextures (1, pTexture); glBindTexture (GL_TEXTURE_RECTANGLE_ARB, *pTexture); switch (v_format) { case GST_VIDEO_FORMAT_RGB: case GST_VIDEO_FORMAT_BGR: case GST_VIDEO_FORMAT_RGBx: case GST_VIDEO_FORMAT_BGRx: case GST_VIDEO_FORMAT_xRGB: case GST_VIDEO_FORMAT_xBGR: case GST_VIDEO_FORMAT_RGBA: case GST_VIDEO_FORMAT_BGRA: case GST_VIDEO_FORMAT_ARGB: case GST_VIDEO_FORMAT_ABGR: glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL); break; case GST_VIDEO_FORMAT_YUY2: case GST_VIDEO_FORMAT_UYVY: switch (display->colorspace_conversion) { case GST_GL_DISPLAY_CONVERSION_GLSL: case GST_GL_DISPLAY_CONVERSION_MATRIX: glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL); break; /* case GST_GL_DISPLAY_CONVERSION_MESA: if (display->upload_width != display->upload_data_width || display->upload_height != display->upload_data_height) glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL); else glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_YCBCR_MESA, width, height, 0, GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_MESA, NULL); break;*/ default: gst_gl_display_set_error (display, "Unknow colorspace conversion %d", display->colorspace_conversion); } break; case GST_VIDEO_FORMAT_I420: case GST_VIDEO_FORMAT_YV12: case GST_VIDEO_FORMAT_AYUV: glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL); break; default: // gst_gl_display_set_error (display, "Unsupported upload video format %d", // display->upload_video_format); break; } glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); GST_LOG ("generated texture id:%d", *pTexture); } void gst_gl_display_del_texture_thread (GstGLDisplay * display, GLuint * pTexture) { glDeleteTextures (1, pTexture); } //------------------------------------------------------------ //--------------------- END PRIVATE ------------------------- //------------------------------------------------------------ //------------------------------------------------------------ //---------------------- BEGIN PUBLIC ------------------------ //------------------------------------------------------------ void gst_gl_display_lock (GstGLDisplay * display) { g_mutex_lock (display->mutex); } void gst_gl_display_unlock (GstGLDisplay * display) { g_mutex_unlock (display->mutex); } /* called in the gl thread */ void gst_gl_display_check_framebuffer_status (void) { GLenum status = glCheckFramebufferStatusEXT (GL_FRAMEBUFFER_EXT); switch (status) { case GL_FRAMEBUFFER_COMPLETE_EXT: break; case GL_FRAMEBUFFER_UNSUPPORTED_EXT: GST_ERROR ("GL_FRAMEBUFFER_UNSUPPORTED"); break; case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT: GST_ERROR ("GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT"); break; case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT: GST_ERROR ("GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT"); break; case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT: GST_ERROR ("GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS"); break; #ifndef OPENGL_ES2 case GL_FRAMEBUFFER_UNDEFINED: GST_ERROR ("GL_FRAMEBUFFER_UNDEFINED"); break; #endif default: GST_ERROR ("General FBO error"); } } /* Called by the first gl element of a video/x-raw-gl flow */ GstGLDisplay * gst_gl_display_new (void) { return g_object_new (GST_TYPE_GL_DISPLAY, NULL); } /* Create an opengl context (one context for one GstGLDisplay) */ gboolean gst_gl_display_create_context (GstGLDisplay * display, gulong external_gl_context) { gboolean isAlive = FALSE; gst_gl_display_lock (display); if (!display->gl_window) { display->external_gl_context = external_gl_context; display->gl_thread = g_thread_create ( (GThreadFunc) gst_gl_display_thread_create_context, display, TRUE, NULL); g_cond_wait (display->cond_create_context, display->mutex); GST_INFO ("gl thread created"); } isAlive = display->isAlive; gst_gl_display_unlock (display); return isAlive; } /* Called by the glimagesink element */ gboolean gst_gl_display_redisplay (GstGLDisplay * display, GLuint texture, gint gl_width, gint gl_height, gint window_width, gint window_height, gboolean keep_aspect_ratio) { gboolean isAlive = TRUE; gst_gl_display_lock (display); isAlive = display->isAlive; if (isAlive) { #ifdef OPENGL_ES2 if (!display->redisplay_shader) { gst_gl_window_send_message (display->gl_window, GST_GL_WINDOW_CB (gst_gl_display_thread_init_redisplay), display); } #endif if (texture) { display->redisplay_texture = texture; display->redisplay_texture_width = gl_width; display->redisplay_texture_height = gl_height; } display->keep_aspect_ratio = keep_aspect_ratio; if (display->gl_window) gst_gl_window_draw (display->gl_window, window_width, window_height); isAlive = display->isAlive; } gst_gl_display_unlock (display); return isAlive; } void gst_gl_display_thread_add (GstGLDisplay * display, GstGLDisplayThreadFunc func, gpointer data) { gst_gl_display_lock (display); display->data = data; display->generic_callback = func; gst_gl_window_send_message (display->gl_window, GST_GL_WINDOW_CB (gst_gl_display_thread_run_generic), display); gst_gl_display_unlock (display); } /* Called by gst_gl_buffer_new */ void gst_gl_display_gen_texture (GstGLDisplay * display, GLuint * pTexture, GstVideoFormat v_format, GLint width, GLint height) { gst_gl_display_lock (display); if (display->isAlive) { display->gen_texture_width = width; display->gen_texture_height = height; display->gen_texture_video_format = v_format; gst_gl_window_send_message (display->gl_window, GST_GL_WINDOW_CB (gst_gl_display_gen_texture_window_cb), display); *pTexture = display->gen_texture; } else *pTexture = 0; gst_gl_display_unlock (display); } /* Called by gst_gl_buffer_finalize */ void gst_gl_display_del_texture (GstGLDisplay * display, GLuint * pTexture) { gst_gl_display_lock (display); if (*pTexture) { gst_gl_display_del_texture_thread (display, pTexture); } gst_gl_display_unlock (display); } /* Called by gltestsrc and glfilter */ gboolean gst_gl_display_gen_fbo (GstGLDisplay * display, gint width, gint height, GLuint * fbo, GLuint * depthbuffer) { gboolean isAlive = FALSE; gst_gl_display_lock (display); if (display->isAlive) { display->gen_fbo_width = width; display->gen_fbo_height = height; gst_gl_window_send_message (display->gl_window, GST_GL_WINDOW_CB (gst_gl_display_thread_gen_fbo), display); *fbo = display->generated_fbo; *depthbuffer = display->generated_depth_buffer; isAlive = display->isAlive; } gst_gl_display_unlock (display); return isAlive; } /* Called by glfilter */ /* this function really has to be simplified... do we really need to set projection this way? Wouldn't be better a set_projection separate call? or just make glut functions available out of gst-libs and call it if needed on drawcallback? -- Filippo */ /* GLCB too.. I think that only needed parameters should be * GstGLDisplay *display and gpointer data, or just gpointer data */ /* ..everything here has to be simplified! */ gboolean gst_gl_display_use_fbo (GstGLDisplay * display, gint texture_fbo_width, gint texture_fbo_height, GLuint fbo, GLuint depth_buffer, GLuint texture_fbo, GLCB cb, gint input_texture_width, gint input_texture_height, GLuint input_texture, gdouble proj_param1, gdouble proj_param2, gdouble proj_param3, gdouble proj_param4, GstGLDisplayProjection projection, gpointer * stuff) { gboolean isAlive = TRUE; gst_gl_display_lock (display); isAlive = display->isAlive; if (isAlive) { display->use_fbo = fbo; display->use_depth_buffer = depth_buffer; display->use_fbo_texture = texture_fbo; display->use_fbo_width = texture_fbo_width; display->use_fbo_height = texture_fbo_height; display->use_fbo_scene_cb = cb; display->use_fbo_proj_param1 = proj_param1; display->use_fbo_proj_param2 = proj_param2; display->use_fbo_proj_param3 = proj_param3; display->use_fbo_proj_param4 = proj_param4; display->use_fbo_projection = projection; display->use_fbo_stuff = stuff; display->input_texture_width = input_texture_width; display->input_texture_height = input_texture_height; display->input_texture = input_texture; gst_gl_window_send_message (display->gl_window, GST_GL_WINDOW_CB (gst_gl_display_thread_use_fbo), display); isAlive = display->isAlive; } gst_gl_display_unlock (display); return isAlive; } gboolean gst_gl_display_use_fbo_v2 (GstGLDisplay * display, gint texture_fbo_width, gint texture_fbo_height, GLuint fbo, GLuint depth_buffer, GLuint texture_fbo, GLCB_V2 cb, gpointer * stuff) { gboolean isAlive = TRUE; gst_gl_display_lock (display); isAlive = display->isAlive; if (isAlive) { display->use_fbo = fbo; display->use_depth_buffer = depth_buffer; display->use_fbo_texture = texture_fbo; display->use_fbo_width = texture_fbo_width; display->use_fbo_height = texture_fbo_height; display->use_fbo_scene_cb_v2 = cb; display->use_fbo_stuff = stuff; gst_gl_window_send_message (display->gl_window, GST_GL_WINDOW_CB (gst_gl_display_thread_use_fbo_v2), display); isAlive = display->isAlive; } gst_gl_display_unlock (display); return isAlive; } /* Called by gltestsrc and glfilter */ void gst_gl_display_del_fbo (GstGLDisplay * display, GLuint fbo, GLuint depth_buffer) { gst_gl_display_lock (display); display->del_fbo = fbo; display->del_depth_buffer = depth_buffer; gst_gl_window_send_message (display->gl_window, GST_GL_WINDOW_CB (gst_gl_display_thread_del_fbo), display); gst_gl_display_unlock (display); } /* Called by glfilter */ gboolean gst_gl_display_gen_shader (GstGLDisplay * display, const gchar * shader_vertex_source, const gchar * shader_fragment_source, GstGLShader ** shader) { gboolean isAlive = FALSE; gst_gl_display_lock (display); display->gen_shader_vertex_source = shader_vertex_source; display->gen_shader_fragment_source = shader_fragment_source; gst_gl_window_send_message (display->gl_window, GST_GL_WINDOW_CB (gst_gl_display_thread_gen_shader), display); isAlive = display->isAlive; if (shader) *shader = display->gen_shader; display->gen_shader = NULL; display->gen_shader_vertex_source = NULL; display->gen_shader_fragment_source = NULL; gst_gl_display_unlock (display); return isAlive; } /* Called by glfilter */ void gst_gl_display_del_shader (GstGLDisplay * display, GstGLShader * shader) { gst_gl_display_lock (display); display->del_shader = shader; gst_gl_window_send_message (display->gl_window, GST_GL_WINDOW_CB (gst_gl_display_thread_del_shader), display); gst_gl_display_unlock (display); } /* Called by the glimagesink */ void gst_gl_display_set_window_id (GstGLDisplay * display, gulong window_id) { gst_gl_display_lock (display); gst_gl_window_set_external_window_id (display->gl_window, window_id); gst_gl_display_unlock (display); } /* Called by the glimagesink */ void gst_gl_display_set_client_reshape_callback (GstGLDisplay * display, CRCB cb) { gst_gl_display_lock (display); display->clientReshapeCallback = cb; gst_gl_display_unlock (display); } /* Called by the glimagesink */ void gst_gl_display_set_client_draw_callback (GstGLDisplay * display, CDCB cb) { gst_gl_display_lock (display); display->clientDrawCallback = cb; gst_gl_display_unlock (display); } void gst_gl_display_set_client_data (GstGLDisplay * display, gpointer data) { gst_gl_display_lock (display); display->client_data = data; gst_gl_display_unlock (display); } gulong gst_gl_display_get_internal_gl_context (GstGLDisplay * display) { gulong external_gl_context = 0; gst_gl_display_lock (display); external_gl_context = gst_gl_window_get_internal_gl_context (display->gl_window); gst_gl_display_unlock (display); return external_gl_context; } void gst_gl_display_activate_gl_context (GstGLDisplay * display, gboolean activate) { if (!activate) gst_gl_display_lock (display); gst_gl_window_activate_gl_context (display->gl_window, activate); if (activate) gst_gl_display_unlock (display); } //------------------------------------------------------------ //------------------------ END PUBLIC ------------------------ //------------------------------------------------------------