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gstglshader: cache uniform locations
Avoid redundant calls to glGetUniformLocation. The results can be cached once the shader has been linked.
This commit is contained in:
Alessandro Decina
Tim-Philipp Müller
parent
7e1a42ce55
commit
bc8d272aad
1 changed files with 52 additions and 25 deletions
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@ -73,6 +73,7 @@ struct _GstGLShaderPrivate
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GList *stages;
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gboolean linked;
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GHashTable *uniform_locations;
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GstGLSLFuncs vtable;
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};
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@ -122,6 +123,7 @@ gst_gl_shader_finalize (GObject * object)
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(GstGLContextThreadFunc) _cleanup_shader, shader);
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priv->program_handle = 0;
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g_hash_table_destroy (priv->uniform_locations);
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if (shader->context) {
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gst_object_unref (shader->context);
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@ -189,6 +191,30 @@ gst_gl_shader_init (GstGLShader * self)
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priv = self->priv = GST_GL_SHADER_GET_PRIVATE (self);
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priv->linked = FALSE;
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priv->uniform_locations =
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g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
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}
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static int
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_get_uniform_location (GstGLShader * shader, const gchar * name)
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{
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GstGLShaderPrivate *priv = shader->priv;
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int location;
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gpointer value;
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g_return_val_if_fail (priv->linked, 0);
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if (!g_hash_table_lookup_extended (priv->uniform_locations, name, NULL,
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&value)) {
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const GstGLFuncs *gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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g_hash_table_insert (priv->uniform_locations, g_strdup (name),
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GINT_TO_POINTER (location));
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} else {
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location = GPOINTER_TO_INT (value);
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}
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return location;
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}
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static GstGLShader *
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@ -680,6 +706,7 @@ gst_gl_shader_release_unlocked (GstGLShader * shader)
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shader->priv->stages = NULL;
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priv->linked = FALSE;
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g_hash_table_remove_all (priv->uniform_locations);
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g_object_notify (G_OBJECT (shader), "linked");
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}
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@ -763,7 +790,7 @@ gst_gl_shader_set_uniform_1f (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform1f (location, value);
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}
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@ -781,7 +808,7 @@ gst_gl_shader_set_uniform_1fv (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform1fv (location, count, value);
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}
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@ -799,7 +826,7 @@ gst_gl_shader_set_uniform_1i (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform1i (location, value);
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}
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@ -817,7 +844,7 @@ gst_gl_shader_set_uniform_1iv (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform1iv (location, count, value);
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}
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@ -835,7 +862,7 @@ gst_gl_shader_set_uniform_2f (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform2f (location, value0, value1);
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}
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@ -853,7 +880,7 @@ gst_gl_shader_set_uniform_2fv (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform2fv (location, count, value);
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}
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@ -871,7 +898,7 @@ gst_gl_shader_set_uniform_2i (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform2i (location, v0, v1);
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}
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@ -889,7 +916,7 @@ gst_gl_shader_set_uniform_2iv (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform2iv (location, count, value);
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}
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@ -907,7 +934,7 @@ gst_gl_shader_set_uniform_3f (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform3f (location, v0, v1, v2);
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}
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@ -925,7 +952,7 @@ gst_gl_shader_set_uniform_3fv (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform3fv (location, count, value);
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}
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@ -943,7 +970,7 @@ gst_gl_shader_set_uniform_3i (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform3i (location, v0, v1, v2);
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}
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@ -961,7 +988,7 @@ gst_gl_shader_set_uniform_3iv (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform3iv (location, count, value);
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}
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@ -979,7 +1006,7 @@ gst_gl_shader_set_uniform_4f (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform4f (location, v0, v1, v2, v3);
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}
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@ -997,7 +1024,7 @@ gst_gl_shader_set_uniform_4fv (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform4fv (location, count, value);
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}
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@ -1015,7 +1042,7 @@ gst_gl_shader_set_uniform_4i (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform4i (location, v0, v1, v2, v3);
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}
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@ -1033,7 +1060,7 @@ gst_gl_shader_set_uniform_4iv (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->Uniform4iv (location, count, value);
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}
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@ -1051,7 +1078,7 @@ gst_gl_shader_set_uniform_matrix_2fv (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->UniformMatrix2fv (location, count, transpose, value);
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}
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@ -1069,7 +1096,7 @@ gst_gl_shader_set_uniform_matrix_3fv (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->UniformMatrix3fv (location, count, transpose, value);
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}
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@ -1087,7 +1114,7 @@ gst_gl_shader_set_uniform_matrix_4fv (GstGLShader * shader, const gchar * name,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->UniformMatrix4fv (location, count, transpose, value);
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}
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@ -1106,7 +1133,7 @@ gst_gl_shader_set_uniform_matrix_2x3fv (GstGLShader * shader,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->UniformMatrix2x3fv (location, count, transpose, value);
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}
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@ -1124,7 +1151,7 @@ gst_gl_shader_set_uniform_matrix_2x4fv (GstGLShader * shader,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->UniformMatrix2x4fv (location, count, transpose, value);
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}
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@ -1142,7 +1169,7 @@ gst_gl_shader_set_uniform_matrix_3x2fv (GstGLShader * shader,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->UniformMatrix3x2fv (location, count, transpose, value);
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}
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@ -1160,7 +1187,7 @@ gst_gl_shader_set_uniform_matrix_3x4fv (GstGLShader * shader,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->UniformMatrix3x4fv (location, count, transpose, value);
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}
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@ -1178,7 +1205,7 @@ gst_gl_shader_set_uniform_matrix_4x2fv (GstGLShader * shader,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->UniformMatrix4x2fv (location, count, transpose, value);
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}
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@ -1196,7 +1223,7 @@ gst_gl_shader_set_uniform_matrix_4x3fv (GstGLShader * shader,
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g_return_if_fail (priv->program_handle != 0);
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gl = shader->context->gl_vtable;
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location = gl->GetUniformLocation (priv->program_handle, name);
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location = _get_uniform_location (shader, name);
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gl->UniformMatrix4x3fv (location, count, transpose, value);
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}
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