static gboolean
gst_gl_mixer_src_query (GstAggregator * agg, GstQuery * query)
{
gboolean res = FALSE;
GstGLMixer *mix = GST_GL_MIXER (agg);
GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (mix);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
{
res = gst_gl_handle_context_query ((GstElement *) mix, query,
&mix->display, &mix->other_context);
if (mix->display)
gst_gl_display_filter_gl_api (mix->display,
mix_class->supported_gl_api);
break;
}
case GST_QUERY_CAPS:
res = gst_gl_mixer_query_caps (agg->srcpad, agg, query);
break;
default:
res = GST_AGGREGATOR_CLASS (parent_class)->src_query (agg, query);
break;
}
return res;
}
static void
gst_gl_mixer_set_context (GstElement * element, GstContext * context)
{
GstGLMixer *mix = GST_GL_MIXER (element);
gst_gl_handle_set_context (element, context, &mix->display);
}
static void
gst_gl_video_mixer_pad_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstGLVideoMixerPad *pad = GST_GL_VIDEO_MIXER_PAD (object);
GstGLMixer *mix = GST_GL_MIXER (gst_pad_get_parent (GST_PAD (pad)));
switch (prop_id) {
case PROP_PAD_XPOS:
pad->xpos = g_value_get_int (value);
pad->geometry_change = TRUE;
break;
case PROP_PAD_YPOS:
pad->ypos = g_value_get_int (value);
pad->geometry_change = TRUE;
break;
case PROP_PAD_WIDTH:
pad->width = g_value_get_int (value);
pad->geometry_change = TRUE;
break;
case PROP_PAD_HEIGHT:
pad->height = g_value_get_int (value);
pad->geometry_change = TRUE;
break;
case PROP_PAD_ALPHA:
pad->alpha = g_value_get_double (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
gst_object_unref (mix);
}
static gboolean
gst_gl_mixer_start (GstAggregator * agg)
{
guint i;
GstGLMixer *mix = GST_GL_MIXER (agg);
GstElement *element = GST_ELEMENT (agg);
if (!GST_AGGREGATOR_CLASS (parent_class)->start (agg))
return FALSE;
GST_OBJECT_LOCK (mix);
mix->array_buffers = g_ptr_array_new_full (element->numsinkpads,
(GDestroyNotify) _free_glmixer_frame_data);
mix->frames = g_ptr_array_new_full (element->numsinkpads, NULL);
g_ptr_array_set_size (mix->array_buffers, element->numsinkpads);
g_ptr_array_set_size (mix->frames, element->numsinkpads);
for (i = 0; i < element->numsinkpads; i++)
mix->frames->pdata[i] = g_slice_new0 (GstGLMixerFrameData);
GST_OBJECT_UNLOCK (mix);
return TRUE;
}
static gboolean
_draw_background (GstGLVideoMixer * video_mixer)
{
GstGLMixer *mixer = GST_GL_MIXER (video_mixer);
const GstGLFuncs *gl = GST_GL_BASE_MIXER (mixer)->context->gl_vtable;
switch (video_mixer->background) {
case GST_GL_VIDEO_MIXER_BACKGROUND_BLACK:
gl->ClearColor (0.0, 0.0, 0.0, 1.0);
gl->Clear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
break;
case GST_GL_VIDEO_MIXER_BACKGROUND_WHITE:
gl->ClearColor (1.0, 1.0, 1.0, 1.0);
gl->Clear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
break;
case GST_GL_VIDEO_MIXER_BACKGROUND_TRANSPARENT:
gl->ClearColor (0.0, 0.0, 0.0, 0.0);
gl->Clear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
break;
case GST_GL_VIDEO_MIXER_BACKGROUND_CHECKER:
return _draw_checker_background (video_mixer);
break;
default:
break;
}
return TRUE;
}
static void
_mosaic_render (GstGLContext * context, GstGLMosaic * mosaic)
{
GstGLMixer *mixer = GST_GL_MIXER (mosaic);
gst_gl_framebuffer_draw_to_texture (mixer->fbo, mosaic->out_tex,
gst_gl_mosaic_callback, mosaic);
}
static void
gst_gl_mixer_finalize (GObject * object)
{
GstGLMixerPrivate *priv = GST_GL_MIXER (object)->priv;
g_mutex_clear (&priv->gl_resource_lock);
g_cond_clear (&priv->gl_resource_cond);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
_negotiated_caps (GstVideoAggregator * vagg, GstCaps * caps)
{
GstGLMixer *mix = GST_GL_MIXER (vagg);
gboolean ret = gst_gl_mixer_do_bufferpool (mix, caps);
mix->priv->negotiated = ret;
return ret;
}
static void
gst_gl_mixer_set_context (GstElement * element, GstContext * context)
{
GstGLMixer *mix = GST_GL_MIXER (element);
GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (mix);
gst_gl_handle_set_context (element, context, &mix->display,
&mix->other_context);
if (mix->display)
gst_gl_display_filter_gl_api (mix->display, mix_class->supported_gl_api);
}
static gboolean
gst_gl_mixer_stop (GstAggregator * agg)
{
GstGLMixer *mix = GST_GL_MIXER (agg);
GstGLMixerClass *mixer_class = GST_GL_MIXER_GET_CLASS (mix);
if (!GST_AGGREGATOR_CLASS (parent_class)->stop (agg))
return FALSE;
GST_OBJECT_LOCK (agg);
g_ptr_array_free (mix->frames, TRUE);
mix->frames = NULL;
g_ptr_array_free (mix->array_buffers, TRUE);
mix->array_buffers = NULL;
GST_OBJECT_UNLOCK (agg);
if (mixer_class->reset)
mixer_class->reset (mix);
if (mix->fbo) {
gst_gl_context_del_fbo (mix->context, mix->fbo, mix->depthbuffer);
mix->fbo = 0;
mix->depthbuffer = 0;
}
if (mix->download) {
gst_object_unref (mix->download);
mix->download = NULL;
}
gst_aggregator_iterate_sinkpads (GST_AGGREGATOR (mix), _clean_upload, NULL);
if (mix->priv->query) {
gst_query_unref (mix->priv->query);
mix->priv->query = NULL;
}
if (mix->priv->pool) {
gst_object_unref (mix->priv->pool);
mix->priv->pool = NULL;
}
if (mix->display) {
gst_object_unref (mix->display);
mix->display = NULL;
}
if (mix->context) {
gst_object_unref (mix->context);
mix->context = NULL;
}
gst_gl_mixer_reset (mix);
return TRUE;
}
static gboolean
gst_gl_mixer_sink_query (GstAggregator * agg, GstAggregatorPad * bpad,
GstQuery * query)
{
gboolean ret = FALSE;
GstGLMixer *mix = GST_GL_MIXER (agg);
GST_TRACE ("QUERY %" GST_PTR_FORMAT, query);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_ALLOCATION:
{
GstQuery *decide_query = NULL;
gboolean negotiated;
GST_OBJECT_LOCK (mix);
if (G_UNLIKELY (!(negotiated = mix->priv->negotiated))) {
GST_DEBUG_OBJECT (mix,
"not negotiated yet, can't answer ALLOCATION query");
GST_OBJECT_UNLOCK (mix);
return FALSE;
}
if ((decide_query = mix->priv->query))
gst_query_ref (decide_query);
GST_OBJECT_UNLOCK (mix);
GST_DEBUG_OBJECT (mix,
"calling propose allocation with query %" GST_PTR_FORMAT,
decide_query);
/* pass the query to the propose_allocation vmethod if any */
ret = gst_gl_mixer_propose_allocation (mix, decide_query, query);
if (decide_query)
gst_query_unref (decide_query);
GST_DEBUG_OBJECT (mix, "ALLOCATION ret %d, %" GST_PTR_FORMAT, ret, query);
break;
}
case GST_QUERY_CONTEXT:
{
ret = gst_gl_handle_context_query ((GstElement *) mix, query,
&mix->display);
break;
}
default:
ret = GST_AGGREGATOR_CLASS (parent_class)->sink_query (agg, bpad, query);
break;
}
return ret;
}
static gboolean
_draw_checker_background (GstGLVideoMixer * video_mixer)
{
GstGLMixer *mixer = GST_GL_MIXER (video_mixer);
const GstGLFuncs *gl = GST_GL_BASE_MIXER (mixer)->context->gl_vtable;
gint attr_position_loc = 0;
/* *INDENT-OFF* */
gfloat v_vertices[] = {
-1.0,-1.0,-1.0f,
1.0,-1.0,-1.0f,
1.0, 1.0,-1.0f,
-1.0, 1.0,-1.0f,
};
/* *INDENT-ON* */
if (!video_mixer->checker) {
if (!gst_gl_context_gen_shader (GST_GL_BASE_MIXER (mixer)->context,
checker_v_src, checker_f_src, &video_mixer->checker))
return FALSE;
}
gst_gl_shader_use (video_mixer->checker);
attr_position_loc =
gst_gl_shader_get_attribute_location (video_mixer->checker, "a_position");
_init_vbo_indices (video_mixer);
if (!video_mixer->checker_vbo) {
gl->GenBuffers (1, &video_mixer->checker_vbo);
gl->BindBuffer (GL_ARRAY_BUFFER, video_mixer->checker_vbo);
gl->BufferData (GL_ARRAY_BUFFER, 4 * 3 * sizeof (GLfloat), v_vertices,
GL_STATIC_DRAW);
} else {
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, video_mixer->vbo_indices);
gl->BindBuffer (GL_ARRAY_BUFFER, video_mixer->checker_vbo);
}
gl->VertexAttribPointer (attr_position_loc, 3, GL_FLOAT,
GL_FALSE, 3 * sizeof (GLfloat), (void *) 0);
gl->EnableVertexAttribArray (attr_position_loc);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
gl->DisableVertexAttribArray (attr_position_loc);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
return TRUE;
}
static GstFlowReturn
gst_gl_mixer_aggregate_frames (GstVideoAggregator * vagg, GstBuffer * outbuf)
{
gboolean res = FALSE;
GstGLMixer *mix = GST_GL_MIXER (vagg);
GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (vagg);
if (mix_class->process_buffers)
res = gst_gl_mixer_process_buffers (mix, outbuf);
else if (mix_class->process_textures)
res = gst_gl_mixer_process_textures (mix, outbuf);
return res ? GST_FLOW_OK : GST_FLOW_ERROR;
}
static void
gst_gl_mixer_finalize (GObject * object)
{
GstGLMixer *mix = GST_GL_MIXER (object);
GstGLMixerPrivate *priv = mix->priv;
if (mix->other_context) {
gst_object_unref (mix->other_context);
mix->other_context = NULL;
}
g_mutex_clear (&priv->gl_resource_lock);
g_cond_clear (&priv->gl_resource_cond);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_gl_mixer_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec)
{
GstGLMixer *mixer = GST_GL_MIXER (object);
switch (prop_id) {
case PROP_CONTEXT:
g_value_set_object (value, mixer->context);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstFlowReturn
gst_gl_mixer_get_output_buffer (GstVideoAggregator * videoaggregator,
GstBuffer ** outbuf)
{
GstGLMixer *mix = GST_GL_MIXER (videoaggregator);
if (!mix->priv->pool_active) {
if (!gst_buffer_pool_set_active (mix->priv->pool, TRUE)) {
GST_ELEMENT_ERROR (mix, RESOURCE, SETTINGS,
("failed to activate bufferpool"), ("failed to activate bufferpool"));
return GST_FLOW_ERROR;
}
mix->priv->pool_active = TRUE;
}
return gst_buffer_pool_acquire_buffer (mix->priv->pool, outbuf, NULL);
}
static GstFlowReturn
gst_gl_mixer_aggregate_frames (GstVideoAggregator * vagg, GstBuffer * outbuf)
{
gboolean res = FALSE;
GstGLMixer *mix = GST_GL_MIXER (vagg);
GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (vagg);
GstGLSyncMeta *sync_meta;
if (mix_class->process_buffers)
res = gst_gl_mixer_process_buffers (mix, outbuf);
else if (mix_class->process_textures)
res = gst_gl_mixer_process_textures (mix, outbuf);
sync_meta = gst_buffer_get_gl_sync_meta (outbuf);
if (sync_meta)
gst_gl_sync_meta_set_sync_point (sync_meta, mix->context);
return res ? GST_FLOW_OK : GST_FLOW_ERROR;
}
static gboolean
gst_gl_mixer_src_activate_mode (GstAggregator * aggregator, GstPadMode mode,
gboolean active)
{
GstGLMixer *mix;
gboolean result = FALSE;
mix = GST_GL_MIXER (aggregator);
switch (mode) {
case GST_PAD_MODE_PUSH:
case GST_PAD_MODE_PULL:
result = gst_gl_mixer_activate (mix, active);
break;
default:
result = TRUE;
break;
}
return result;
}
static gboolean
gst_gl_mixer_sink_query (GstAggregator * agg, GstAggregatorPad * bpad,
GstQuery * query)
{
gboolean ret = FALSE;
GstGLMixer *mix = GST_GL_MIXER (agg);
GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (mix);
GST_TRACE ("QUERY %" GST_PTR_FORMAT, query);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:
{
GstCaps *filter, *caps;
gst_query_parse_caps (query, &filter);
caps = gst_gl_mixer_pad_sink_getcaps (GST_PAD (bpad), mix, filter);
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
ret = TRUE;
break;
}
case GST_QUERY_ACCEPT_CAPS:
{
GstCaps *caps;
gst_query_parse_accept_caps (query, &caps);
ret = gst_gl_mixer_pad_sink_acceptcaps (GST_PAD (bpad), mix, caps);
gst_query_set_accept_caps_result (query, ret);
ret = TRUE;
break;
}
case GST_QUERY_ALLOCATION:
{
GstQuery *decide_query = NULL;
GST_OBJECT_LOCK (mix);
if (G_UNLIKELY (!mix->priv->negotiated)) {
GST_DEBUG_OBJECT (mix,
"not negotiated yet, can't answer ALLOCATION query");
GST_OBJECT_UNLOCK (mix);
return FALSE;
}
if ((decide_query = mix->priv->query))
gst_query_ref (decide_query);
GST_OBJECT_UNLOCK (mix);
GST_DEBUG_OBJECT (mix,
"calling propose allocation with query %" GST_PTR_FORMAT,
decide_query);
/* pass the query to the propose_allocation vmethod if any */
ret = gst_gl_mixer_propose_allocation (mix, decide_query, query);
if (decide_query)
gst_query_unref (decide_query);
GST_DEBUG_OBJECT (mix, "ALLOCATION ret %d, %" GST_PTR_FORMAT, ret, query);
break;
}
case GST_QUERY_CONTEXT:
{
ret = gst_gl_handle_context_query ((GstElement *) mix, query,
&mix->display, &mix->other_context);
if (mix->display)
gst_gl_display_filter_gl_api (mix->display,
mix_class->supported_gl_api);
break;
}
default:
ret = GST_AGGREGATOR_CLASS (parent_class)->sink_query (agg, bpad, query);
break;
}
return ret;
}
/* opengl scene, params: input texture (not the output mixer->texture) */
static void
gst_gl_video_mixer_callback (gpointer stuff)
{
GstGLVideoMixer *video_mixer = GST_GL_VIDEO_MIXER (stuff);
GstVideoAggregator *vagg = GST_VIDEO_AGGREGATOR (stuff);
GstGLMixer *mixer = GST_GL_MIXER (video_mixer);
GstGLFuncs *gl = GST_GL_BASE_MIXER (mixer)->context->gl_vtable;
GLint attr_position_loc = 0;
GLint attr_texture_loc = 0;
guint out_width, out_height;
guint count = 0;
out_width = GST_VIDEO_INFO_WIDTH (&vagg->info);
out_height = GST_VIDEO_INFO_HEIGHT (&vagg->info);
gst_gl_context_clear_shader (GST_GL_BASE_MIXER (mixer)->context);
gl->BindTexture (GL_TEXTURE_2D, 0);
gl->Disable (GL_DEPTH_TEST);
gl->Disable (GL_CULL_FACE);
if (gl->GenVertexArrays) {
if (!video_mixer->vao)
gl->GenVertexArrays (1, &video_mixer->vao);
gl->BindVertexArray (video_mixer->vao);
}
if (!_draw_background (video_mixer))
return;
gst_gl_shader_use (video_mixer->shader);
attr_position_loc =
gst_gl_shader_get_attribute_location (video_mixer->shader, "a_position");
attr_texture_loc =
gst_gl_shader_get_attribute_location (video_mixer->shader, "a_texCoord");
gl->Enable (GL_BLEND);
while (count < video_mixer->input_frames->len) {
GstGLMixerFrameData *frame;
GstGLVideoMixerPad *pad;
GstVideoInfo *v_info;
guint in_tex;
guint in_width, in_height;
/* *INDENT-OFF* */
gfloat v_vertices[] = {
-1.0,-1.0,-1.0f, 0.0f, 0.0f,
1.0,-1.0,-1.0f, 1.0f, 0.0f,
1.0, 1.0,-1.0f, 1.0f, 1.0f,
-1.0, 1.0,-1.0f, 0.0f, 1.0f,
};
/* *INDENT-ON* */
frame = g_ptr_array_index (video_mixer->input_frames, count);
if (!frame) {
GST_DEBUG ("skipping texture, null frame");
count++;
continue;
}
pad = (GstGLVideoMixerPad *) frame->pad;
v_info = &GST_VIDEO_AGGREGATOR_PAD (pad)->info;
in_width = GST_VIDEO_INFO_WIDTH (v_info);
in_height = GST_VIDEO_INFO_HEIGHT (v_info);
if (!frame->texture || in_width <= 0 || in_height <= 0
|| pad->alpha == 0.0f) {
GST_DEBUG ("skipping texture:%u frame:%p width:%u height:%u alpha:%f",
frame->texture, frame, in_width, in_height, pad->alpha);
count++;
continue;
}
in_tex = frame->texture;
_init_vbo_indices (video_mixer);
if (pad->geometry_change || !pad->vertex_buffer) {
gint pad_width, pad_height;
gfloat w, h;
_mixer_pad_get_output_size (video_mixer, pad, &pad_width, &pad_height);
w = ((gfloat) pad_width / (gfloat) out_width);
h = ((gfloat) pad_height / (gfloat) out_height);
/* top-left */
v_vertices[0] = v_vertices[15] =
2.0f * (gfloat) pad->xpos / (gfloat) out_width - 1.0f;
/* bottom-left */
v_vertices[1] = v_vertices[6] =
2.0f * (gfloat) pad->ypos / (gfloat) out_height - 1.0f;
/* top-right */
v_vertices[5] = v_vertices[10] = v_vertices[0] + 2.0f * w;
/* bottom-right */
v_vertices[11] = v_vertices[16] = v_vertices[1] + 2.0f * h;
GST_TRACE ("processing texture:%u dimensions:%ux%u, at %f,%f %fx%f with "
"alpha:%f", in_tex, in_width, in_height, v_vertices[0], v_vertices[1],
v_vertices[5], v_vertices[11], pad->alpha);
if (!pad->vertex_buffer)
gl->GenBuffers (1, &pad->vertex_buffer);
gl->BindBuffer (GL_ARRAY_BUFFER, pad->vertex_buffer);
gl->BufferData (GL_ARRAY_BUFFER, 4 * 5 * sizeof (GLfloat), v_vertices,
GL_STATIC_DRAW);
pad->geometry_change = FALSE;
} else {
gl->BindBuffer (GL_ARRAY_BUFFER, pad->vertex_buffer);
}
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, video_mixer->vbo_indices);
gl->BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
gl->BlendEquation (GL_FUNC_ADD);
gl->ActiveTexture (GL_TEXTURE0);
gl->BindTexture (GL_TEXTURE_2D, in_tex);
gst_gl_shader_set_uniform_1i (video_mixer->shader, "texture", 0);
gst_gl_shader_set_uniform_1f (video_mixer->shader, "alpha", pad->alpha);
gl->EnableVertexAttribArray (attr_position_loc);
gl->EnableVertexAttribArray (attr_texture_loc);
gl->VertexAttribPointer (attr_position_loc, 3, GL_FLOAT,
GL_FALSE, 5 * sizeof (GLfloat), (void *) 0);
gl->VertexAttribPointer (attr_texture_loc, 2, GL_FLOAT,
GL_FALSE, 5 * sizeof (GLfloat), (void *) (3 * sizeof (GLfloat)));
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
++count;
}
gl->DisableVertexAttribArray (attr_position_loc);
gl->DisableVertexAttribArray (attr_texture_loc);
if (gl->GenVertexArrays)
gl->BindVertexArray (0);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->BindTexture (GL_TEXTURE_2D, 0);
gl->Disable (GL_BLEND);
gst_gl_context_clear_shader (GST_GL_BASE_MIXER (mixer)->context);
}
/* opengl scene, params: input texture (not the output mixer->texture) */
static gboolean
gst_gl_mosaic_callback (gpointer stuff)
{
GstGLMosaic *mosaic = GST_GL_MOSAIC (stuff);
GstGLMixer *mixer = GST_GL_MIXER (mosaic);
GstGLFuncs *gl = GST_GL_BASE_MIXER (mixer)->context->gl_vtable;
GList *walk;
static GLfloat xrot = 0;
static GLfloat yrot = 0;
static GLfloat zrot = 0;
GLint attr_position_loc = 0;
GLint attr_texture_loc = 0;
const GLfloat matrix[] = {
0.5f, 0.0f, 0.0f, 0.0f,
0.0f, 0.5f, 0.0f, 0.0f,
0.0f, 0.0f, 0.5f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f
};
const GLushort indices[] = {
0, 1, 2,
0, 2, 3
};
guint count = 0;
gst_gl_context_clear_shader (GST_GL_BASE_MIXER (mixer)->context);
gl->BindTexture (GL_TEXTURE_2D, 0);
gl->Enable (GL_DEPTH_TEST);
gl->ClearColor (0.0, 0.0, 0.0, 0.0);
gl->Clear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
gst_gl_shader_use (mosaic->shader);
attr_position_loc =
gst_gl_shader_get_attribute_location (mosaic->shader, "a_position");
attr_texture_loc =
gst_gl_shader_get_attribute_location (mosaic->shader, "a_texCoord");
GST_OBJECT_LOCK (mosaic);
walk = GST_ELEMENT (mosaic)->sinkpads;
while (walk) {
GstGLMixerPad *pad = walk->data;
/* *INDENT-OFF* */
gfloat v_vertices[] = {
/* front face */
1.0f, 1.0f,-1.0f, 1.0f, 0.0f,
1.0f,-1.0f,-1.0f, 1.0f, 1.0f,
-1.0f,-1.0f,-1.0f, 0.0f, 1.0f,
-1.0f, 1.0f,-1.0f, 0.0f, 0.0f,
/* right face */
1.0f, 1.0f, 1.0f, 1.0f, 0.0f,
1.0f,-1.0f, 1.0f, 0.0f, 0.0f,
1.0f,-1.0f,-1.0f, 0.0f, 1.0f,
1.0f, 1.0f,-1.0f, 1.0f, 1.0f,
/* left face */
-1.0f, 1.0f, 1.0f, 1.0f, 0.0f,
-1.0f, 1.0f,-1.0f, 1.0f, 1.0f,
-1.0f,-1.0f,-1.0f, 0.0f, 1.0f,
-1.0f,-1.0f, 1.0f, 0.0f, 0.0f,
/* top face */
1.0f,-1.0f, 1.0f, 1.0f, 0.0f,
-1.0f,-1.0f, 1.0f, 0.0f, 0.0f,
-1.0f,-1.0f,-1.0f, 0.0f, 1.0f,
1.0f,-1.0f,-1.0f, 1.0f, 1.0f,
/* bottom face */
1.0f, 1.0f, 1.0f, 1.0f, 0.0f,
1.0f, 1.0f,-1.0f, 1.0f, 1.0f,
-1.0f, 1.0f,-1.0f, 0.0f, 1.0f,
-1.0f, 1.0f, 1.0f, 0.0f, 0.0f,
/* back face */
1.0f, 1.0f, 1.0f, 1.0f, 0.0f,
-1.0f, 1.0f, 1.0f, 0.0f, 0.0f,
-1.0f,-1.0f, 1.0f, 0.0f, 1.0f,
1.0f,-1.0f, 1.0f, 1.0f, 1.0f
};
/* *INDENT-ON* */
guint in_tex;
guint width, height;
in_tex = pad->current_texture;
width = GST_VIDEO_INFO_WIDTH (&GST_VIDEO_AGGREGATOR_PAD (pad)->info);
height = GST_VIDEO_INFO_HEIGHT (&GST_VIDEO_AGGREGATOR_PAD (pad)->info);
if (!in_tex || width <= 0 || height <= 0) {
GST_DEBUG ("skipping texture:%u pad:%p width:%u height %u",
in_tex, pad, width, height);
count++;
walk = g_list_next (walk);
continue;
}
GST_TRACE ("processing texture:%u dimensions:%ux%u", in_tex, width, height);
gl->VertexAttribPointer (attr_position_loc, 3, GL_FLOAT,
GL_FALSE, 5 * sizeof (GLfloat), &v_vertices[5 * 4 * count]);
gl->VertexAttribPointer (attr_texture_loc, 2, GL_FLOAT,
GL_FALSE, 5 * sizeof (GLfloat), &v_vertices[5 * 4 * count + 3]);
gl->EnableVertexAttribArray (attr_position_loc);
gl->EnableVertexAttribArray (attr_texture_loc);
gl->ActiveTexture (GL_TEXTURE0);
gl->BindTexture (GL_TEXTURE_2D, in_tex);
gst_gl_shader_set_uniform_1i (mosaic->shader, "s_texture", 0);
gst_gl_shader_set_uniform_1f (mosaic->shader, "xrot_degree", xrot);
gst_gl_shader_set_uniform_1f (mosaic->shader, "yrot_degree", yrot);
gst_gl_shader_set_uniform_1f (mosaic->shader, "zrot_degree", zrot);
gst_gl_shader_set_uniform_matrix_4fv (mosaic->shader, "u_matrix", 1,
GL_FALSE, matrix);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
++count;
walk = g_list_next (walk);
}
GST_OBJECT_UNLOCK (mosaic);
gl->DisableVertexAttribArray (attr_position_loc);
gl->DisableVertexAttribArray (attr_texture_loc);
gl->BindTexture (GL_TEXTURE_2D, 0);
gl->Disable (GL_DEPTH_TEST);
gst_gl_context_clear_shader (GST_GL_BASE_MIXER (mixer)->context);
xrot += 0.6f;
yrot += 0.4f;
zrot += 0.8f;
return TRUE;
}
