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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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[104/906] start to add a glfilteredge that proceeds edge detection using GLSL
git-svn-id: svn://svn.wobow.com/GStreamer_playground/gst-plugins-gl@517 93df14bb-0f41-7a43-8087-d3e2a2f0e464
This commit is contained in:
Julien Isorce
Tim-Philipp Müller
parent
e9f924910c
commit
8685e547b4
4 changed files with 104 additions and 10 deletions
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@ -28,11 +28,13 @@
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static void gst_gl_display_finalize (GObject * object);
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static gpointer gst_gl_display_glutThreadFunc (GstGLDisplay* display);
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static void gst_gl_display_glutCreateWindow (GstGLDisplay* display);
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static void gst_gldisplay_glutGenerateOutputVideoFBO (GstGLDisplay *display);
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static void gst_gl_display_glutGenerateOutputVideoFBO (GstGLDisplay *display);
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static void gst_gl_display_glutGenerateFBO (GstGLDisplay *display);
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static void gst_gl_display_glutUseFBO (GstGLDisplay *display);
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static void gst_gl_display_glutUseFBO2 (GstGLDisplay *display);
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static void gst_gl_display_glutDestroyFBO (GstGLDisplay *display);
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static void gst_gl_display_glutInitShader (GstGLDisplay *display);
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static void gst_gl_display_glutDestroyShader (GstGLDisplay *display);
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static void gst_gl_display_glutDestroyWindow (GstGLDisplay* display);
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static void gst_gl_display_glutSetVisibleWindow (GstGLDisplay* display);
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static void gst_gl_display_glutReshapeWindow (GstGLDisplay* display);
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@ -106,6 +108,8 @@ gst_gl_display_init (GstGLDisplay *display, GstGLDisplayClass *klass)
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display->cond_create = g_cond_new ();
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display->cond_destroy = g_cond_new ();
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display->cond_download = g_cond_new ();
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display->cond_initShader = g_cond_new ();
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display->cond_destroyShader = g_cond_new ();
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display->fbo = 0;
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display->depthBuffer = 0;
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@ -204,6 +208,11 @@ gst_gl_display_init (GstGLDisplay *display, GstGLDisplayClass *klass)
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display->GLSLProgram_to_I420_YV12 = 0;
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display->GLSLProgram_to_AYUV = 0;
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display->requestedTextShader = NULL;
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display->requestedHandleShader = 0;
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display->usedHandleShader = 0;
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display->rejectedHandleShader = 0;
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//YUY2:r,g,a
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//UYVY:a,b,r
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display->textFProgram_YUY2_UYVY =
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@ -370,6 +379,14 @@ gst_gl_display_finalize (GObject *object)
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g_cond_free (display->cond_download);
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display->cond_download = NULL;
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}
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if (display->cond_initShader) {
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g_cond_free (display->cond_initShader);
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display->cond_initShader = NULL;
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}
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if (display->cond_destroyShader) {
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g_cond_free (display->cond_destroyShader);
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display->cond_destroyShader = NULL;
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}
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if (display->cond_generateFBO) {
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g_cond_free (display->cond_generateFBO);
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display->cond_generateFBO = NULL;
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@ -595,7 +612,7 @@ gst_gl_display_glutCreateWindow (GstGLDisplay *display)
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/* Called by the idle funtion */
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static void
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gst_gldisplay_glutGenerateOutputVideoFBO (GstGLDisplay *display)
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gst_gl_display_glutGenerateOutputVideoFBO (GstGLDisplay *display)
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{
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glutSetWindow (display->glutWinId);
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@ -821,7 +838,8 @@ gst_gl_display_glutUseFBO (GstGLDisplay *display)
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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//the opengl scene
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display->glsceneFBO_cb (display->inputTextureWidth, display->inputTextureHeight, display->inputTexture);
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display->glsceneFBO_cb (display->inputTextureWidth, display->inputTextureHeight, display->inputTexture,
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display->usedHandleShader);
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glDrawBuffer(GL_NONE);
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@ -890,9 +908,8 @@ gst_gl_display_glutUseFBO2 (GstGLDisplay *display)
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/* Called by the idle funtion */
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static void
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gst_gl_display_glutDestroyFBO (GstGLDisplay *display)
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gst_gl_display_glutDestroyFBO (GstGLDisplay* display)
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{
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glutSetWindow (display->glutWinId);
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glDeleteFramebuffersEXT (1, &display->rejectedFBO);
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@ -906,6 +923,27 @@ gst_gl_display_glutDestroyFBO (GstGLDisplay *display)
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}
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/* Called by the idle funtion */
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static void
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gst_gl_display_glutInitShader (GstGLDisplay* display)
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{
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glutSetWindow (display->glutWinId);
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display->requestedHandleShader = gst_gl_display_loadGLSLprogram (display->requestedTextShader);
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g_cond_signal (display->cond_initShader);
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}
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/* Called by the idle funtion */
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static void
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gst_gl_display_glutDestroyShader (GstGLDisplay* display)
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{
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glutSetWindow (display->glutWinId);
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glDeleteObjectARB (display->rejectedHandleShader);
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g_cond_signal (display->cond_destroyShader);
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}
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/* Called by the idle function */
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static void
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gst_gl_display_glutDestroyWindow (GstGLDisplay *display)
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@ -1127,7 +1165,13 @@ gst_gl_display_glutDispatchAction (GstGLDisplayMsg* msg)
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gst_gl_display_glutUseFBO2 (msg->display);
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break;
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case GST_GL_DISPLAY_ACTION_OVFBO:
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gst_gldisplay_glutGenerateOutputVideoFBO (msg->display);
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gst_gl_display_glutGenerateOutputVideoFBO (msg->display);
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break;
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case GST_GL_DISPLAY_ACTION_GENSHADER:
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gst_gl_display_glutInitShader (msg->display);
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break;
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case GST_GL_DISPLAY_ACTION_DELSHADER:
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gst_gl_display_glutDestroyShader (msg->display);
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break;
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default:
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g_assert_not_reached ();
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@ -1161,6 +1205,8 @@ gst_gl_display_checkMsgValidity (GstGLDisplayMsg *msg)
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case GST_GL_DISPLAY_ACTION_USEFBO:
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case GST_GL_DISPLAY_ACTION_USEFBO2:
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case GST_GL_DISPLAY_ACTION_OVFBO:
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case GST_GL_DISPLAY_ACTION_GENSHADER:
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case GST_GL_DISPLAY_ACTION_DELSHADER:
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//msg is out of date if the associated display is not in the map
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if (!g_hash_table_lookup (gst_gl_display_map, GINT_TO_POINTER (msg->glutWinId)))
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valid = FALSE;
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@ -1413,7 +1459,8 @@ gst_gl_display_requestFBO (GstGLDisplay* display, gint width, gint height,
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void
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gst_gl_display_useFBO (GstGLDisplay* display, gint textureFBOWidth, gint textureFBOheight,
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guint fbo, guint depthbuffer, guint textureFBO, GLCB cb,
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guint inputTextureWidth, guint inputTextureHeight, guint inputTexture)
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guint inputTextureWidth, guint inputTextureHeight, guint inputTexture,
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GLhandleARB handleShader)
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{
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gst_gl_display_lock (display);
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display->usedFBO = fbo;
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@ -1425,6 +1472,7 @@ gst_gl_display_useFBO (GstGLDisplay* display, gint textureFBOWidth, gint texture
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display->inputTextureWidth = inputTextureWidth;
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display->inputTextureHeight = inputTextureHeight;
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display->inputTexture = inputTexture;
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display->usedHandleShader = handleShader;
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gst_gl_display_postMessage (GST_GL_DISPLAY_ACTION_USEFBO, display);
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g_cond_wait (display->cond_useFBO, display->mutex);
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gst_gl_display_unlock (display);
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@ -1478,6 +1526,31 @@ gst_gl_display_initDonwloadFBO (GstGLDisplay* display, gint width, gint height)
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}
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/* Called by gst_gl elements */
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void
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gst_gl_display_initShader (GstGLDisplay* display, gchar* textShader, GLhandleARB* handleShader)
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{
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gst_gl_display_lock (display);
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display->requestedTextShader = textShader;
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gst_gl_display_postMessage (GST_GL_DISPLAY_ACTION_GENSHADER, display);
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g_cond_wait (display->cond_initShader, display->mutex);
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*handleShader = display->requestedHandleShader;
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gst_gl_display_unlock (display);
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}
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/* Called by gst_gl elements */
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void
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gst_gl_display_destroyShader (GstGLDisplay* display, GLhandleARB shader)
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{
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gst_gl_display_lock (display);
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display->rejectedHandleShader = shader;
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gst_gl_display_postMessage (GST_GL_DISPLAY_ACTION_DELSHADER, display);
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g_cond_wait (display->cond_destroyShader, display->mutex);
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gst_gl_display_unlock (display);
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}
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/* Called by gst_gl elements */
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void
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gst_gl_display_set_windowId (GstGLDisplay* display, gulong winId)
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@ -56,7 +56,9 @@ typedef enum {
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GST_GL_DISPLAY_ACTION_DELFBO,
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GST_GL_DISPLAY_ACTION_USEFBO,
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GST_GL_DISPLAY_ACTION_USEFBO2,
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GST_GL_DISPLAY_ACTION_OVFBO
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GST_GL_DISPLAY_ACTION_OVFBO,
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GST_GL_DISPLAY_ACTION_GENSHADER,
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GST_GL_DISPLAY_ACTION_DELSHADER
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} GstGLDisplayAction;
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@ -82,7 +84,7 @@ typedef void (* CRCB) ( GLuint, GLuint );
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typedef gboolean (* CDCB) ( GLuint, GLuint, GLuint);
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//opengl scene callback
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typedef void (* GLCB) ( GLuint, GLuint, GLuint);
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typedef void (* GLCB) ( GLuint, GLuint, GLuint, GLhandleARB);
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typedef void (* GLCB2) ( gpointer* p1, gpointer* p2, gint w, gint h);
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struct _GstGLDisplay {
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@ -101,6 +103,8 @@ struct _GstGLDisplay {
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GCond* cond_useFBO2;
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GCond* cond_destroyFBO;
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GCond* cond_download;
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GCond* cond_initShader;
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GCond* cond_destroyShader;
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GCond* cond_create;
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GCond* cond_destroy;
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@ -220,6 +224,12 @@ struct _GstGLDisplay {
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gchar* textFProgram_to_AYUV;
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GLhandleARB GLSLProgram_to_AYUV;
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//requested shader
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gchar* requestedTextShader;
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GLhandleARB requestedHandleShader;
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GLhandleARB usedHandleShader;
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GLhandleARB rejectedHandleShader;
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//client callbacks
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CRCB clientReshapeCallback;
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CDCB clientDrawCallback;
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@ -263,13 +273,16 @@ void gst_gl_display_requestFBO (GstGLDisplay* display, gint width, gint height,
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guint* fbo, guint* depthbuffer, guint* texture);
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void gst_gl_display_useFBO (GstGLDisplay* display, gint textureFBOWidth, gint textureFBOheight,
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guint fbo, guint depthbuffer, guint textureFBO, GLCB cb,
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guint inputTextureWidth, guint inputTextureHeight, guint inputTexture);
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guint inputTextureWidth, guint inputTextureHeight, guint inputTexture,
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GLhandleARB handleShader);
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void gst_gl_display_useFBO2 (GstGLDisplay* display, gint textureFBOWidth, gint textureFBOheight,
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guint fbo, guint depthbuffer, guint textureFBO, GLCB2 cb,
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gpointer* p1, gpointer* p2);
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void gst_gl_display_rejectFBO (GstGLDisplay* display, guint fbo,
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guint depthbuffer, guint texture);
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void gst_gl_display_initDonwloadFBO (GstGLDisplay* display, gint width, gint height);
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void gst_gl_display_initShader (GstGLDisplay* display, gchar* textShader, GLhandleARB* handleShader);
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void gst_gl_display_destroyShader (GstGLDisplay* display, GLhandleARB shader);
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void gst_gl_display_set_windowId (GstGLDisplay* display, gulong winId);
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#endif
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@ -103,6 +103,7 @@ gst_gl_filter_class_init (GstGLFilterClass * klass)
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klass->set_caps = NULL;
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klass->filter = NULL;
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klass->onInitFBO = NULL;
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klass->onReset = NULL;
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}
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static void
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@ -147,6 +148,11 @@ gst_gl_filter_get_property (GObject * object, guint prop_id,
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static void
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gst_gl_filter_reset (GstGLFilter* filter)
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{
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GstGLFilterClass* filter_class = GST_GL_FILTER_GET_CLASS (filter);
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if (filter_class->onReset)
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filter_class->onReset (filter);
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if (filter->display)
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{
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//blocking call, delete the FBO
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@ -44,6 +44,7 @@ typedef gboolean (*GstGLFilterSetCaps) (GstGLFilter* filter,
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typedef gboolean (*GstGLFilterProcessFunc) (GstGLFilter *filter,
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GstGLBuffer *inbuf, GstGLBuffer *outbuf);
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typedef void (*GstGLFilterOnInitFBO) (GstGLFilter *filter);
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typedef void (*GstGLFilterOnReset) (GstGLFilter *filter);
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struct _GstGLFilter
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{
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@ -67,6 +68,7 @@ struct _GstGLFilterClass
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GstGLFilterSetCaps set_caps;
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GstGLFilterProcessFunc filter;
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GstGLFilterOnInitFBO onInitFBO;
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GstGLFilterOnReset onReset;
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};
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GType gst_gl_filter_get_type(void);
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