Ejemplos de tlb_stencil_setup_writemask en C++ (Cpp)

Ejemplo n.º 1

Archivo: vc4_state.c Proyecto: juhapekka/juha_mesaexperimentals

static void *
vc4_create_depth_stencil_alpha_state(struct pipe_context *pctx,
                                     const struct pipe_depth_stencil_alpha_state *cso)
{
        struct vc4_depth_stencil_alpha_state *so;

        so = CALLOC_STRUCT(vc4_depth_stencil_alpha_state);
        if (!so)
                return NULL;

        so->base = *cso;

        if (cso->depth.enabled) {
                if (cso->depth.writemask) {
                        so->config_bits[1] |= VC4_CONFIG_BITS_Z_UPDATE;
                }
                so->config_bits[1] |= (cso->depth.func <<
                                       VC4_CONFIG_BITS_DEPTH_FUNC_SHIFT);
        } else {
                so->config_bits[1] |= (PIPE_FUNC_ALWAYS <<
                                       VC4_CONFIG_BITS_DEPTH_FUNC_SHIFT);
        }

        if (cso->stencil[0].enabled) {
                const struct pipe_stencil_state *front = &cso->stencil[0];
                const struct pipe_stencil_state *back = &cso->stencil[1];

                uint8_t front_writemask_bits =
                        tlb_stencil_setup_writemask(front->writemask);
                uint8_t back_writemask = front->writemask;
                uint8_t back_writemask_bits = front_writemask_bits;

                so->stencil_uniforms[0] =
                        tlb_stencil_setup_bits(front, front_writemask_bits);
                if (back->enabled) {
                        back_writemask = back->writemask;
                        back_writemask_bits =
                                tlb_stencil_setup_writemask(back->writemask);

                        so->stencil_uniforms[0] |= (1 << 30);
                        so->stencil_uniforms[1] =
                                tlb_stencil_setup_bits(back, back_writemask_bits);
                        so->stencil_uniforms[1] |= (2 << 30);
                } else {
                        so->stencil_uniforms[0] |= (3 << 30);
                }

                if (front_writemask_bits == 0xff ||
                    back_writemask_bits == 0xff) {
                        so->stencil_uniforms[2] = (front->writemask |
                                                   (back_writemask << 8));
                }
        }

        return so;
}

Ejemplo n.º 2

Archivo: vc4_state.c Proyecto: airlied/mesa

static void *
vc4_create_depth_stencil_alpha_state(struct pipe_context *pctx,
                                     const struct pipe_depth_stencil_alpha_state *cso)
{
        struct vc4_depth_stencil_alpha_state *so;

        so = CALLOC_STRUCT(vc4_depth_stencil_alpha_state);
        if (!so)
                return NULL;

        so->base = *cso;

        /* We always keep the early Z state correct, since a later state using
         * early Z may want it.
         */
        so->config_bits[2] |= VC4_CONFIG_BITS_EARLY_Z_UPDATE;

        if (cso->depth.enabled) {
                if (cso->depth.writemask) {
                        so->config_bits[1] |= VC4_CONFIG_BITS_Z_UPDATE;
                }
                so->config_bits[1] |= (cso->depth.func <<
                                       VC4_CONFIG_BITS_DEPTH_FUNC_SHIFT);

                /* We only handle early Z in the < direction because otherwise
                 * we'd have to runtime guess which direction to set in the
                 * render config.
                 */
                if ((cso->depth.func == PIPE_FUNC_LESS ||
                     cso->depth.func == PIPE_FUNC_LEQUAL) &&
                    (!cso->stencil[0].enabled ||
                     (cso->stencil[0].zfail_op == PIPE_STENCIL_OP_KEEP &&
                      (!cso->stencil[1].enabled ||
                       cso->stencil[1].zfail_op == PIPE_STENCIL_OP_KEEP)))) {
                        so->config_bits[2] |= VC4_CONFIG_BITS_EARLY_Z;
                }
        } else {
                so->config_bits[1] |= (PIPE_FUNC_ALWAYS <<
                                       VC4_CONFIG_BITS_DEPTH_FUNC_SHIFT);
        }

        if (cso->stencil[0].enabled) {
                const struct pipe_stencil_state *front = &cso->stencil[0];
                const struct pipe_stencil_state *back = &cso->stencil[1];

                uint8_t front_writemask_bits =
                        tlb_stencil_setup_writemask(front->writemask);
                uint8_t back_writemask = front->writemask;
                uint8_t back_writemask_bits = front_writemask_bits;

                so->stencil_uniforms[0] =
                        tlb_stencil_setup_bits(front, front_writemask_bits);
                if (back->enabled) {
                        back_writemask = back->writemask;
                        back_writemask_bits =
                                tlb_stencil_setup_writemask(back->writemask);

                        so->stencil_uniforms[0] |= (1 << 30);
                        so->stencil_uniforms[1] =
                                tlb_stencil_setup_bits(back, back_writemask_bits);
                        so->stencil_uniforms[1] |= (2 << 30);
                } else {
                        so->stencil_uniforms[0] |= (3 << 30);
                }

                if (front_writemask_bits == 0xff ||
                    back_writemask_bits == 0xff) {
                        so->stencil_uniforms[2] = (front->writemask |
                                                   (back_writemask << 8));
                }
        }

        return so;
}