Ejemplos de radv_meta_gen_rect_vertices en C++ (Cpp)

Ejemplo n.º 1

Archivo: radv_meta_clear.c Proyecto: mdaniel/virtualbox-org-svn-vbox-trunk

static void
build_color_shaders(struct nir_shader **out_vs,
                    struct nir_shader **out_fs,
                    uint32_t frag_output)
{
	nir_builder vs_b;
	nir_builder fs_b;

	nir_builder_init_simple_shader(&vs_b, NULL, MESA_SHADER_VERTEX, NULL);
	nir_builder_init_simple_shader(&fs_b, NULL, MESA_SHADER_FRAGMENT, NULL);

	vs_b.shader->info.name = ralloc_strdup(vs_b.shader, "meta_clear_color_vs");
	fs_b.shader->info.name = ralloc_strdup(fs_b.shader, "meta_clear_color_fs");

	const struct glsl_type *position_type = glsl_vec4_type();
	const struct glsl_type *color_type = glsl_vec4_type();

	nir_variable *vs_out_pos =
		nir_variable_create(vs_b.shader, nir_var_shader_out, position_type,
				    "gl_Position");
	vs_out_pos->data.location = VARYING_SLOT_POS;

	nir_intrinsic_instr *in_color_load = nir_intrinsic_instr_create(fs_b.shader, nir_intrinsic_load_push_constant);
	nir_intrinsic_set_base(in_color_load, 0);
	nir_intrinsic_set_range(in_color_load, 16);
	in_color_load->src[0] = nir_src_for_ssa(nir_imm_int(&fs_b, 0));
	in_color_load->num_components = 4;
	nir_ssa_dest_init(&in_color_load->instr, &in_color_load->dest, 4, 32, "clear color");
	nir_builder_instr_insert(&fs_b, &in_color_load->instr);

	nir_variable *fs_out_color =
		nir_variable_create(fs_b.shader, nir_var_shader_out, color_type,
				    "f_color");
	fs_out_color->data.location = FRAG_RESULT_DATA0 + frag_output;

	nir_store_var(&fs_b, fs_out_color, &in_color_load->dest.ssa, 0xf);

	nir_ssa_def *outvec = radv_meta_gen_rect_vertices(&vs_b);
	nir_store_var(&vs_b, vs_out_pos, outvec, 0xf);

	const struct glsl_type *layer_type = glsl_int_type();
	nir_variable *vs_out_layer =
		nir_variable_create(vs_b.shader, nir_var_shader_out, layer_type,
				    "v_layer");
	vs_out_layer->data.location = VARYING_SLOT_LAYER;
	vs_out_layer->data.interpolation = INTERP_MODE_FLAT;
	nir_ssa_def *inst_id = nir_load_system_value(&vs_b, nir_intrinsic_load_instance_id, 0);
	nir_ssa_def *base_instance = nir_load_system_value(&vs_b, nir_intrinsic_load_base_instance, 0);

	nir_ssa_def *layer_id = nir_iadd(&vs_b, inst_id, base_instance);
	nir_store_var(&vs_b, vs_out_layer, layer_id, 0x1);

	*out_vs = vs_b.shader;
	*out_fs = fs_b.shader;
}

Ejemplo n.º 2

Archivo: radv_meta_resolve_fs.c Proyecto: ValveSoftware/steamos_mesa

static nir_shader *
build_nir_vertex_shader(void)
{
	const struct glsl_type *vec4 = glsl_vec4_type();
	nir_builder b;

	nir_builder_init_simple_shader(&b, NULL, MESA_SHADER_VERTEX, NULL);
	b.shader->info.name = ralloc_strdup(b.shader, "meta_resolve_vs");

	nir_variable *pos_out = nir_variable_create(b.shader, nir_var_shader_out,
						    vec4, "gl_Position");
	pos_out->data.location = VARYING_SLOT_POS;

	nir_ssa_def *outvec = radv_meta_gen_rect_vertices(&b);

	nir_store_var(&b, pos_out, outvec, 0xf);
	return b.shader;
}