/**
* Set the material for this state.
**/
static void
state_do_material_activate(material_t mat)
{
size_t i, j;
current_material = mat;
if (! current_state)
return;
state_sync_mat_backlog(current_state);
if (! current_state->shader)
return;
for (i = 0; i < current_state->num_materials; i++) {
if (current_state->materials[i].mat != current_material &&
current_state->materials[i].mat != NO_MATERIAL)
continue;
for (j = 0; j < current_state->materials[i].num_uniforms; j++)
shader_set_uniform(current_state->shader,
current_state->materials[i]
.uniforms[j]);
}
}
/**
* Set a uniform that is applied when this state is entered.
**/
void
state_set_uniform(state_t *state, material_t mat, uniform_type_t type, ...)
{
size_t i;
uniform_t *uniform;
struct material *material;
va_list ap;
state_sync_mat_backlog(state);
if (mat != NO_MATERIAL && ! material_is_allocd(mat))
errx(1, "Must set uniforms for NO_MATERIAL"
" or a valid material");
va_start(ap, type);
uniform = uniform_vcreate(type, ap);
va_end(ap);
for (i = 0; i < state->num_materials; i++)
if (state->materials[i].mat == mat)
break;
if (i == state->num_materials) {
state->materials = vec_expand(state->materials,
state->num_materials);
state->num_materials++;
state->materials[i].uniforms = NULL;
state->materials[i].num_uniforms = 0;
state->materials[i].mat = mat;
}
material = &state->materials[i];
for (i = 0; i < material->num_uniforms; i++) {
if (strcmp(material->uniforms[i]->name, uniform->name))
continue;
uniform_ungrab(material->uniforms[i]);
material->uniforms[i] = uniform;
return;
}
material->uniforms = vec_expand(material->uniforms,
material->num_uniforms);
material->uniforms[material->num_uniforms++] = uniform;
if (state == current_state && mat == current_material)
shader_set_uniform(state->shader, uniform);
}
void shader_commit_uniform(struct shader* self, GLint program) {
for (int i = 0; i < BUILT_IN_UNIFORM_MAX; ++i) {
shader_set_uniform(self, program, i, self->uniform_buffer_objects[i].v);
}
}
void render_set_unfiorm(struct render* self, const char* name, enum UNIFORM_TYPE uniform_type, float* v) {
s_assert(self->cur_program);
GLint location = shader_get_uniform(self->shader, self->cur_program, name);
shader_set_uniform(self->shader, location, uniform_type, v);
}