From c5ff5963160d3167b8b1f87f0ed214af14467e6c Mon Sep 17 00:00:00 2001 From: gb Date: Mon, 29 Mar 2010 15:59:44 +0000 Subject: [PATCH] Add OpenGL reflection effect ("use-reflection"). --- sys/vaapisink/gstvaapisink.c | 159 +++++++++++++++++++++++++++++++++++++++---- sys/vaapisink/gstvaapisink.h | 1 + 2 files changed, 148 insertions(+), 12 deletions(-) diff --git a/sys/vaapisink/gstvaapisink.c b/sys/vaapisink/gstvaapisink.c index fc0704e..2384830 100644 --- a/sys/vaapisink/gstvaapisink.c +++ b/sys/vaapisink/gstvaapisink.c @@ -80,7 +80,8 @@ enum { PROP_USE_GLX, PROP_DISPLAY, PROP_FULLSCREEN, - PROP_SYNCHRONOUS + PROP_SYNCHRONOUS, + PROP_USE_REFLECTION }; static GstVaapiDisplay * @@ -268,6 +269,125 @@ gst_vaapisink_set_caps(GstBaseSink *base_sink, GstCaps *caps) return TRUE; } +#if USE_VAAPISINK_GLX +static void +render_background(GstVaapiSink *sink) +{ + /* Original code from Mirco Muller (MacSlow): + */ + GLfloat fStartX = 0.0f; + GLfloat fStartY = 0.0f; + GLfloat fWidth = (GLfloat)sink->window_rect.width; + GLfloat fHeight = (GLfloat)sink->window_rect.height; + + glClear(GL_COLOR_BUFFER_BIT); + glBegin(GL_QUADS); + { + /* top third, darker grey to white */ + glColor3f(0.85f, 0.85f, 0.85f); + glVertex3f(fStartX, fStartY, 0.0f); + glColor3f(0.85f, 0.85f, 0.85f); + glVertex3f(fStartX + fWidth, fStartY, 0.0f); + glColor3f(1.0f, 1.0f, 1.0f); + glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f); + glColor3f(1.0f, 1.0f, 1.0f); + glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f); + + /* middle third, just plain white */ + glColor3f(1.0f, 1.0f, 1.0f); + glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f); + glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f); + glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f); + glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f); + + /* bottom third, white to lighter grey */ + glColor3f(1.0f, 1.0f, 1.0f); + glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f); + glColor3f(1.0f, 1.0f, 1.0f); + glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f); + glColor3f(0.62f, 0.66f, 0.69f); + glVertex3f(fStartX + fWidth, fStartY + fHeight, 0.0f); + glColor3f(0.62f, 0.66f, 0.69f); + glVertex3f(fStartX, fStartY + fHeight, 0.0f); + } + glEnd(); +} + +static void +render_frame(GstVaapiSink *sink) +{ + const guint w = sink->window_rect.width; + const guint h = sink->window_rect.height; + + glColor4f(1.0f, 1.0f, 1.0f, 1.0f); + glBegin(GL_QUADS); + { + glTexCoord2f(0.0f, 0.0f); glVertex2i(0, 0); + glTexCoord2f(0.0f, 1.0f); glVertex2i(0, h); + glTexCoord2f(1.0f, 1.0f); glVertex2i(w, h); + glTexCoord2f(1.0f, 0.0f); glVertex2i(w, 0); + } + glEnd(); +} + +static void +render_reflection(GstVaapiSink *sink) +{ + const guint w = sink->window_rect.width; + const guint h = sink->window_rect.height; + const guint rh = h / 5; + GLfloat ry = 1.0f - (GLfloat)rh / (GLfloat)h; + + glBegin(GL_QUADS); + { + glColor4f(1.0f, 1.0f, 1.0f, 1.0f); + glTexCoord2f(0.0f, 1.0f); glVertex2i(0, 0); + glTexCoord2f(1.0f, 1.0f); glVertex2i(w, 0); + + glColor4f(1.0f, 1.0f, 1.0f, 0.0f); + glTexCoord2f(1.0f, ry); glVertex2i(w, rh); + glTexCoord2f(0.0f, ry); glVertex2i(0, rh); + } + glEnd(); +} + +static gboolean +gst_vaapisink_show_frame_glx(GstVaapiSink *sink) +{ + GstVaapiWindowGLX * const window = GST_VAAPI_WINDOW_GLX(sink->window); + GLenum target; + GLuint texture; + + if (!sink->use_reflection) + return gst_vaapi_window_glx_put_texture(window, sink->texture, + NULL, &sink->window_rect); + + target = gst_vaapi_texture_get_target(sink->texture); + texture = gst_vaapi_texture_get_id(sink->texture); + if (target != GL_TEXTURE_2D || !texture) + return FALSE; + + render_background(sink); + + glEnable(target); + glBindTexture(target, texture); + { + glPushMatrix(); + glRotatef(20.0f, 0.0f, 1.0f, 0.0f); + glTranslatef(50.0f, 0.0f, 0.0f); + render_frame(sink); + glPushMatrix(); + glTranslatef(0.0, (GLfloat)sink->window_rect.height + 5.0f, 0.0f); + render_reflection(sink); + glPopMatrix(); + glPopMatrix(); + } + glBindTexture(target, 0); + glDisable(target); + return TRUE; +} +#endif + static GstFlowReturn gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *buffer) { @@ -306,8 +426,7 @@ gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *buffer) GST_DEBUG("could not transfer VA surface to texture"); return GST_FLOW_UNEXPECTED; } - if (!gst_vaapi_window_glx_put_texture(window, sink->texture, - NULL, &sink->window_rect)) { + if (!gst_vaapisink_show_frame_glx(sink)) { GST_DEBUG("could not render VA/GLX texture"); return GST_FLOW_UNEXPECTED; } @@ -356,6 +475,9 @@ gst_vaapisink_set_property( case PROP_SYNCHRONOUS: sink->synchronous = g_value_get_boolean(value); break; + case PROP_USE_REFLECTION: + sink->use_reflection = g_value_get_boolean(value); + break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec); break; @@ -385,6 +507,9 @@ gst_vaapisink_get_property( case PROP_SYNCHRONOUS: g_value_set_boolean(value, sink->synchronous); break; + case PROP_USE_REFLECTION: + g_value_set_boolean(value, sink->use_reflection); + break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec); break; @@ -427,6 +552,15 @@ static void gst_vaapisink_class_init(GstVaapiSinkClass *klass) "Enables GLX rendering", TRUE, G_PARAM_READWRITE)); + + g_object_class_install_property + (object_class, + PROP_USE_REFLECTION, + g_param_spec_boolean("use-reflection", + "Reflection effect", + "Enables OpenGL reflection effect", + FALSE, + G_PARAM_READWRITE)); #endif g_object_class_install_property @@ -465,15 +599,16 @@ static void gst_vaapisink_class_init(GstVaapiSinkClass *klass) static void gst_vaapisink_init(GstVaapiSink *sink, GstVaapiSinkClass *klass) { - sink->display_name = NULL; - sink->display = NULL; - sink->window = NULL; - sink->texture = NULL; - sink->video_width = 0; - sink->video_height = 0; - sink->fullscreen = FALSE; - sink->synchronous = FALSE; - sink->use_glx = USE_VAAPISINK_GLX; + sink->display_name = NULL; + sink->display = NULL; + sink->window = NULL; + sink->texture = NULL; + sink->video_width = 0; + sink->video_height = 0; + sink->fullscreen = FALSE; + sink->synchronous = FALSE; + sink->use_glx = USE_VAAPISINK_GLX; + sink->use_reflection = FALSE; } GstVaapiDisplay * diff --git a/sys/vaapisink/gstvaapisink.h b/sys/vaapisink/gstvaapisink.h index 914af82..1809212 100644 --- a/sys/vaapisink/gstvaapisink.h +++ b/sys/vaapisink/gstvaapisink.h @@ -76,6 +76,7 @@ struct _GstVaapiSink { guint fullscreen : 1; guint synchronous : 1; guint use_glx : 1; + guint use_reflection : 1; }; struct _GstVaapiSinkClass { -- 2.7.4