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gltransformation: reconfigure the src when changing to/from passthrough

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Otherwise it's very possible that any GL resources have not been created yet.
This commit is contained in:
Matthew Waters 2016-02-03 10:59:23 +11:00 committed by Tim-Philipp Müller
parent 612ee0089f
commit afd3624b28
1 changed files with 13 additions and 9 deletions
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22
ext/gl/gstgltransformation.c
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@ -290,6 +290,7 @@ gst_gl_transformation_build_mvp (GstGLTransformation * transformation)
graphene_vec3_t center;
graphene_vec3_t up;
gboolean current_passthrough;
gboolean passthrough;
graphene_vec3_init (&eye, 0.f, 0.f, 1.f);
@ -297,13 +298,14 @@ gst_gl_transformation_build_mvp (GstGLTransformation * transformation)
graphene_vec3_init (&up, 0.f, 1.f, 0.f);
/* Translate into pivot origin */
graphene_matrix_init_translate (&transformation->model_matrix, &pivot_vector);
graphene_matrix_init_translate (&transformation->model_matrix,
&pivot_vector);
/* Scale */
graphene_matrix_scale (&transformation->model_matrix,
transformation->xscale, transformation->yscale, 1.0f);
/* Rotation */
/* Rotation */
graphene_matrix_rotate (&transformation->model_matrix,
transformation->xrotation, graphene_vec3_x_axis ());
graphene_matrix_rotate (&transformation->model_matrix,
@ -311,7 +313,7 @@ gst_gl_transformation_build_mvp (GstGLTransformation * transformation)
graphene_matrix_rotate (&transformation->model_matrix,
transformation->zrotation, graphene_vec3_z_axis ());
/* Translate back from pivot origin */
/* Translate back from pivot origin */
graphene_point3d_scale (&pivot_vector, -1.0, &negative_pivot_vector);
graphene_matrix_translate (&transformation->model_matrix,
&negative_pivot_vector);
@ -333,17 +335,19 @@ gst_gl_transformation_build_mvp (GstGLTransformation * transformation)
graphene_matrix_init_look_at (&transformation->view_matrix, &eye, &center,
&up);
current_passthrough =
gst_base_transform_is_passthrough (GST_BASE_TRANSFORM (transformation));
passthrough = transformation->xtranslation == 0.
&& transformation->ytranslation == 0.
&& transformation->ztranslation == 0.
&& transformation->xrotation == 0.
&& transformation->yrotation == 0.
&& transformation->zrotation == 0.
&& transformation->xscale == 1.
&& transformation->yscale == 1.
&& transformation->ztranslation == 0. && transformation->xrotation == 0.
&& transformation->yrotation == 0. && transformation->zrotation == 0.
&& transformation->xscale == 1. && transformation->yscale == 1.
&& gst_video_info_is_equal (&filter->in_info, &filter->out_info);
gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (transformation),
passthrough);
if (current_passthrough != passthrough) {
gst_base_transform_reconfigure_src (GST_BASE_TRANSFORM (transformation));
}
}
graphene_matrix_multiply (&transformation->model_matrix,