//opengl scene, params: input texture (not the output filter->texture)
static void
gst_gl_deinterlace_callback (gint width, gint height, guint texture,
gpointer stuff)
{
GstGLDeinterlace *deinterlace_filter = GST_GL_DEINTERLACE (stuff);
GstGLFilter *filter = GST_GL_FILTER (stuff);
GstGLBuffer *gl_buffer_prev = deinterlace_filter->gl_buffer_prev;
glMatrixMode (GL_PROJECTION);
glLoadIdentity ();
gst_gl_shader_use (deinterlace_filter->shader);
glEnable (GL_TEXTURE_RECTANGLE_ARB);
if (gl_buffer_prev) {
glActiveTexture (GL_TEXTURE1_ARB);
gst_gl_shader_set_uniform_1i (deinterlace_filter->shader, "tex_prev", 1);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, gl_buffer_prev->texture);
}
glActiveTexture (GL_TEXTURE0_ARB);
gst_gl_shader_set_uniform_1i (deinterlace_filter->shader, "tex", 0);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
gst_gl_shader_set_uniform_1f (deinterlace_filter->shader, "max_comb",
5.0f / 255.0f);
gst_gl_shader_set_uniform_1f (deinterlace_filter->shader, "motion_threshold",
25.0f / 255.0f);
gst_gl_shader_set_uniform_1f (deinterlace_filter->shader, "motion_sense",
30.0f / 255.0f);
gst_gl_shader_set_uniform_1i (deinterlace_filter->shader, "width",
filter->width);
gst_gl_shader_set_uniform_1i (deinterlace_filter->shader, "height",
filter->height);
glBegin (GL_QUADS);
glMultiTexCoord2iARB (GL_TEXTURE0_ARB, 0, 0);
glMultiTexCoord2iARB (GL_TEXTURE1_ARB, 0, 0);
glVertex2i (-1, -1);
glMultiTexCoord2iARB (GL_TEXTURE0_ARB, width, 0);
glMultiTexCoord2iARB (GL_TEXTURE1_ARB, width, 0);
glVertex2i (1, -1);
glMultiTexCoord2iARB (GL_TEXTURE0_ARB, width, height);
glMultiTexCoord2iARB (GL_TEXTURE1_ARB, width, height);
glVertex2i (1, 1);
glMultiTexCoord2iARB (GL_TEXTURE0_ARB, 0, height);
glMultiTexCoord2iARB (GL_TEXTURE1_ARB, 0, height);
glVertex2i (-1, 1);
glEnd ();
glDisable (GL_TEXTURE_RECTANGLE_ARB);
}
void __stdcall glMultiTexCoord2i(GLenum target, GLint s, GLint t)
{
if (!ARB_multitexture) return;
glMultiTexCoord2iARB(target, s, t);
}
