spe_allocate_register(f, 13),
spe_allocate_register(f, 14),
};
- const int mask = spe_allocate_register(f, 15);
unsigned func[4];
unsigned sF[4];
unsigned dF[4];
func[i], sF[i], dF[i],
frag[i], src_factor[i],
pixel[i], dst_factor[i]);
- spe_selb(f, frag[i], pixel[i], frag[i], mask);
- } else {
- spe_or(f, frag[i], pixel[i], pixel[i]);
}
}
}
#endif
}
+
+
+int PC_OFFSET(const struct spe_function *f, const void *d)
+{
+ const intptr_t pc = (intptr_t) f->csr;
+ const intptr_t ea = ~0x0f & (intptr_t) d;
+
+ return (ea - pc) >> 2;
+}
+
+
+/**
+ * Generate code to perform color conversion and logic op
+ *
+ * \bug
+ * The code generated by this function should also perform dithering.
+ *
+ * \bug
+ * The code generated by this function should also perform color-write
+ * masking.
+ *
+ * \bug
+ * Only two framebuffer formats are supported at this time.
+ */
+void
+cell_generate_logic_op(struct spe_function *f, struct pipe_blend_state *blend,
+ struct pipe_surface *surf)
+{
+ const unsigned logic_op = (blend->logicop_enable)
+ ? blend->logicop_func : PIPE_LOGICOP_COPY;
+
+ /* This code generates a maximum of 37 instructions. An additional 32
+ * bytes (equiv. to 8 instructions) are needed for data storage. Round up
+ * to 64 to make it a happy power-of-two.
+ */
+ spe_init_func(f, 4 * 64);
+
+
+ /* Pixel colors in framebuffer format in AoS layout.
+ */
+ const int pixel[4] = {
+ spe_allocate_register(f, 3),
+ spe_allocate_register(f, 4),
+ spe_allocate_register(f, 5),
+ spe_allocate_register(f, 6),
+ };
+
+ /* Fragment colors stored as floats in SoA layout.
+ */
+ const int frag[4] = {
+ spe_allocate_register(f, 7),
+ spe_allocate_register(f, 8),
+ spe_allocate_register(f, 9),
+ spe_allocate_register(f, 10),
+ };
+
+ const int mask = spe_allocate_register(f, 11);
+
+
+ /* Short-circuit the noop and invert cases.
+ */
+ if ((logic_op == PIPE_LOGICOP_NOOP) || (blend->colormask == 0)) {
+ spe_bi(f, 0, 0, 0);
+ return;
+ } else if (logic_op == PIPE_LOGICOP_INVERT) {
+ spe_nor(f, pixel[0], pixel[0], pixel[0]);
+ spe_nor(f, pixel[1], pixel[1], pixel[1]);
+ spe_nor(f, pixel[2], pixel[2], pixel[2]);
+ spe_nor(f, pixel[3], pixel[3], pixel[3]);
+ spe_bi(f, 0, 0, 0);
+ return;
+ }
+
+
+ const int tmp[4] = {
+ spe_allocate_available_register(f),
+ spe_allocate_available_register(f),
+ spe_allocate_available_register(f),
+ spe_allocate_available_register(f),
+ };
+
+ const int shuf_xpose_hi = spe_allocate_available_register(f);
+ const int shuf_xpose_lo = spe_allocate_available_register(f);
+ const int shuf_color = spe_allocate_available_register(f);
+
+
+ /* Pointer to the begining of the function's private data area.
+ */
+ uint32_t *const data = ((uint32_t *) f->store) + (64 - 8);
+
+
+ /* Convert fragment colors to framebuffer format in AoS layout.
+ */
+ switch (surf->format) {
+ case PIPE_FORMAT_A8R8G8B8_UNORM:
+ data[0] = 0x00010203;
+ data[1] = 0x10111213;
+ data[2] = 0x04050607;
+ data[3] = 0x14151617;
+ data[4] = 0x0c000408;
+ data[5] = 0x80808080;
+ data[6] = 0x80808080;
+ data[7] = 0x80808080;
+ break;
+ case PIPE_FORMAT_B8G8R8A8_UNORM:
+ data[0] = 0x03020100;
+ data[1] = 0x13121110;
+ data[2] = 0x07060504;
+ data[3] = 0x17161514;
+ data[4] = 0x0804000c;
+ data[5] = 0x80808080;
+ data[6] = 0x80808080;
+ data[7] = 0x80808080;
+ break;
+ default:
+ fprintf(stderr, "CELL: Bad pixel format in cell_generate_logic_op()");
+ ASSERT(0);
+ }
+
+ spe_ilh(f, tmp[0], 0x0808);
+ spe_lqr(f, shuf_xpose_hi, PC_OFFSET(f, data+0));
+ spe_lqr(f, shuf_color, PC_OFFSET(f, data+4));
+ spe_a(f, shuf_xpose_lo, shuf_xpose_hi, tmp[0]);
+
+ spe_shufb(f, tmp[0], frag[0], frag[2], shuf_xpose_hi);
+ spe_shufb(f, tmp[1], frag[0], frag[2], shuf_xpose_lo);
+ spe_shufb(f, tmp[2], frag[1], frag[3], shuf_xpose_hi);
+ spe_shufb(f, tmp[3], frag[1], frag[3], shuf_xpose_lo);
+
+ spe_shufb(f, frag[0], tmp[0], tmp[2], shuf_xpose_hi);
+ spe_shufb(f, frag[1], tmp[0], tmp[2], shuf_xpose_lo);
+ spe_shufb(f, frag[2], tmp[1], tmp[3], shuf_xpose_hi);
+ spe_shufb(f, frag[3], tmp[1], tmp[3], shuf_xpose_lo);
+
+ spe_cfltu(f, frag[0], frag[0], 32);
+ spe_cfltu(f, frag[1], frag[1], 32);
+ spe_cfltu(f, frag[2], frag[2], 32);
+ spe_cfltu(f, frag[3], frag[3], 32);
+
+ spe_shufb(f, frag[0], frag[0], pixel[0], shuf_color);
+ spe_shufb(f, frag[1], frag[1], pixel[1], shuf_color);
+ spe_shufb(f, frag[2], frag[2], pixel[2], shuf_color);
+ spe_shufb(f, frag[3], frag[3], pixel[3], shuf_color);
+
+
+ /* If logic op is enabled, perform the requested logical operation on the
+ * converted fragment colors and the pixel colors.
+ */
+ switch (logic_op) {
+ case PIPE_LOGICOP_CLEAR:
+ spe_il(f, frag[0], 0);
+ spe_il(f, frag[1], 0);
+ spe_il(f, frag[2], 0);
+ spe_il(f, frag[3], 0);
+ break;
+ case PIPE_LOGICOP_NOR:
+ spe_nor(f, frag[0], frag[0], pixel[0]);
+ spe_nor(f, frag[1], frag[1], pixel[1]);
+ spe_nor(f, frag[2], frag[2], pixel[2]);
+ spe_nor(f, frag[3], frag[3], pixel[3]);
+ break;
+ case PIPE_LOGICOP_AND_INVERTED:
+ spe_andc(f, frag[0], pixel[0], frag[0]);
+ spe_andc(f, frag[1], pixel[1], frag[1]);
+ spe_andc(f, frag[2], pixel[2], frag[2]);
+ spe_andc(f, frag[3], pixel[3], frag[3]);
+ break;
+ case PIPE_LOGICOP_COPY_INVERTED:
+ spe_nor(f, frag[0], frag[0], frag[0]);
+ spe_nor(f, frag[1], frag[1], frag[1]);
+ spe_nor(f, frag[2], frag[2], frag[2]);
+ spe_nor(f, frag[3], frag[3], frag[3]);
+ break;
+ case PIPE_LOGICOP_AND_REVERSE:
+ spe_andc(f, frag[0], frag[0], pixel[0]);
+ spe_andc(f, frag[1], frag[1], pixel[1]);
+ spe_andc(f, frag[2], frag[2], pixel[2]);
+ spe_andc(f, frag[3], frag[3], pixel[3]);
+ break;
+ case PIPE_LOGICOP_XOR:
+ spe_xor(f, frag[0], frag[0], pixel[0]);
+ spe_xor(f, frag[1], frag[1], pixel[1]);
+ spe_xor(f, frag[2], frag[2], pixel[2]);
+ spe_xor(f, frag[3], frag[3], pixel[3]);
+ break;
+ case PIPE_LOGICOP_NAND:
+ spe_nand(f, frag[0], frag[0], pixel[0]);
+ spe_nand(f, frag[1], frag[1], pixel[1]);
+ spe_nand(f, frag[2], frag[2], pixel[2]);
+ spe_nand(f, frag[3], frag[3], pixel[3]);
+ break;
+ case PIPE_LOGICOP_AND:
+ spe_and(f, frag[0], frag[0], pixel[0]);
+ spe_and(f, frag[1], frag[1], pixel[1]);
+ spe_and(f, frag[2], frag[2], pixel[2]);
+ spe_and(f, frag[3], frag[3], pixel[3]);
+ break;
+ case PIPE_LOGICOP_EQUIV:
+ spe_eqv(f, frag[0], frag[0], pixel[0]);
+ spe_eqv(f, frag[1], frag[1], pixel[1]);
+ spe_eqv(f, frag[2], frag[2], pixel[2]);
+ spe_eqv(f, frag[3], frag[3], pixel[3]);
+ break;
+ case PIPE_LOGICOP_OR_INVERTED:
+ spe_orc(f, frag[0], pixel[0], frag[0]);
+ spe_orc(f, frag[1], pixel[1], frag[1]);
+ spe_orc(f, frag[2], pixel[2], frag[2]);
+ spe_orc(f, frag[3], pixel[3], frag[3]);
+ break;
+ case PIPE_LOGICOP_COPY:
+ break;
+ case PIPE_LOGICOP_OR_REVERSE:
+ spe_orc(f, frag[0], frag[0], pixel[0]);
+ spe_orc(f, frag[1], frag[1], pixel[1]);
+ spe_orc(f, frag[2], frag[2], pixel[2]);
+ spe_orc(f, frag[3], frag[3], pixel[3]);
+ break;
+ case PIPE_LOGICOP_OR:
+ spe_or(f, frag[0], frag[0], pixel[0]);
+ spe_or(f, frag[1], frag[1], pixel[1]);
+ spe_or(f, frag[2], frag[2], pixel[2]);
+ spe_or(f, frag[3], frag[3], pixel[3]);
+ break;
+ case PIPE_LOGICOP_SET:
+ spe_il(f, frag[0], ~0);
+ spe_il(f, frag[1], ~0);
+ spe_il(f, frag[2], ~0);
+ spe_il(f, frag[3], ~0);
+ break;
+
+ /* These two cases are short-circuited above.
+ */
+ case PIPE_LOGICOP_INVERT:
+ case PIPE_LOGICOP_NOOP:
+ default:
+ assert(0);
+ }
+
+
+ /* Apply fragment mask.
+ */
+ spe_ilh(f, tmp[0], 0x0000);
+ spe_ilh(f, tmp[1], 0x0404);
+ spe_ilh(f, tmp[2], 0x0808);
+ spe_ilh(f, tmp[3], 0x0c0c);
+
+ spe_shufb(f, tmp[0], mask, mask, tmp[0]);
+ spe_shufb(f, tmp[1], mask, mask, tmp[1]);
+ spe_shufb(f, tmp[2], mask, mask, tmp[2]);
+ spe_shufb(f, tmp[3], mask, mask, tmp[3]);
+
+ spe_selb(f, pixel[0], pixel[0], frag[0], tmp[0]);
+ spe_selb(f, pixel[1], pixel[1], frag[1], tmp[1]);
+ spe_selb(f, pixel[2], pixel[2], frag[2], tmp[2]);
+ spe_selb(f, pixel[3], pixel[3], frag[3], tmp[3]);
+
+ spe_bi(f, 0, 0, 0);
+
+#if 0
+ {
+ const uint32_t *p = f->store;
+ unsigned i;
+
+ printf("# %u instructions\n", f->csr - f->store);
+
+ printf("\t.text\n");
+ for (i = 0; i < 64; i++) {
+ printf("\t.long\t0x%04x\n", p[i]);
+ }
+ fflush(stdout);
+ }
+#endif
+}
projects / mesa.git / blobdiff