#include "pipe/p_state.h"
#include "util/u_format.h"
#include "util/u_hash.h"
+#include "util/u_math.h"
#include "util/u_memory.h"
#include "util/u_pack_color.h"
#include "util/format_srgb.h"
#include "tgsi/tgsi_dump.h"
#include "tgsi/tgsi_info.h"
#include "tgsi/tgsi_lowering.h"
+#include "tgsi/tgsi_parse.h"
+#include "nir/tgsi_to_nir.h"
#include "vc4_context.h"
#include "vc4_qpu.h"
static struct qreg
indirect_uniform_load(struct vc4_compile *c,
- struct tgsi_full_src_register *src, int swiz)
-{
- struct tgsi_ind_register *indirect = &src->Indirect;
- struct vc4_compiler_ubo_range *range = &c->ubo_ranges[indirect->ArrayID];
+ struct qreg indirect_offset,
+ unsigned offset)
+{
+ struct vc4_compiler_ubo_range *range = NULL;
+ unsigned i;
+ for (i = 0; i < c->num_uniform_ranges; i++) {
+ range = &c->ubo_ranges[i];
+ if (offset >= range->src_offset &&
+ offset < range->src_offset + range->size) {
+ break;
+ }
+ }
+ /* The driver-location-based offset always has to be within a declared
+ * uniform range.
+ */
+ assert(range);
if (!range->used) {
range->used = true;
range->dst_offset = c->next_ubo_dst_offset;
c->num_ubo_ranges++;
};
- assert(src->Register.Indirect);
- assert(indirect->File == TGSI_FILE_ADDRESS);
+ offset -= range->src_offset;
+ /* Translate the user's TGSI register index from the TGSI register
+ * base to a byte offset.
+ */
+ indirect_offset = qir_SHL(c, indirect_offset, qir_uniform_ui(c, 4));
- struct qreg addr_val = c->addr[indirect->Swizzle];
- struct qreg indirect_offset =
- qir_ADD(c, addr_val, qir_uniform_ui(c,
- range->dst_offset +
- (src->Register.Index * 16)+
- swiz * 4));
- indirect_offset = qir_MIN(c, indirect_offset, qir_uniform_ui(c, (range->dst_offset +
- range->size - 4)));
+ /* Adjust for where we stored the TGSI register base. */
+ indirect_offset = qir_ADD(c, indirect_offset,
+ qir_uniform_ui(c, (range->dst_offset +
+ offset)));
+ indirect_offset = qir_MIN(c, indirect_offset,
+ qir_uniform_ui(c, (range->dst_offset +
+ range->size - 4)));
qir_TEX_DIRECT(c, indirect_offset, qir_uniform(c, QUNIFORM_UBO_ADDR, 0));
struct qreg r4 = qir_TEX_RESULT(c);
return qir_MOV(c, r4);
}
-static struct qreg
-get_src(struct vc4_compile *c, unsigned tgsi_op,
- struct tgsi_full_src_register *full_src, int i)
+static struct qreg *
+ntq_get_dest(struct vc4_compile *c, nir_dest dest)
{
- struct tgsi_src_register *src = &full_src->Register;
- struct qreg r = c->undef;
-
- uint32_t s = i;
- switch (i) {
- case TGSI_SWIZZLE_X:
- s = src->SwizzleX;
- break;
- case TGSI_SWIZZLE_Y:
- s = src->SwizzleY;
- break;
- case TGSI_SWIZZLE_Z:
- s = src->SwizzleZ;
- break;
- case TGSI_SWIZZLE_W:
- s = src->SwizzleW;
- break;
- default:
- abort();
- }
-
- switch (src->File) {
- case TGSI_FILE_NULL:
- return r;
- case TGSI_FILE_TEMPORARY:
- r = c->temps[src->Index * 4 + s];
- break;
- case TGSI_FILE_IMMEDIATE:
- r = c->consts[src->Index * 4 + s];
- break;
- case TGSI_FILE_CONSTANT:
- if (src->Indirect) {
- r = indirect_uniform_load(c, full_src, s);
- } else {
- r = qir_uniform(c, QUNIFORM_UNIFORM, src->Index * 4 + s);
- }
- break;
- case TGSI_FILE_INPUT:
- r = c->inputs[src->Index * 4 + s];
- break;
- case TGSI_FILE_SAMPLER:
- case TGSI_FILE_SAMPLER_VIEW:
- r = c->undef;
- break;
- default:
- fprintf(stderr, "unknown src file %d\n", src->File);
- abort();
- }
+ assert(!dest.is_ssa);
+ nir_register *reg = dest.reg.reg;
+ struct hash_entry *entry = _mesa_hash_table_search(c->def_ht, reg);
+ assert(reg->num_array_elems == 0);
+ assert(dest.reg.base_offset == 0);
- if (src->Absolute)
- r = qir_FMAXABS(c, r, r);
+ struct qreg *qregs = entry->data;
+ return qregs;
+}
- if (src->Negate) {
- switch (tgsi_opcode_infer_src_type(tgsi_op)) {
- case TGSI_TYPE_SIGNED:
- case TGSI_TYPE_UNSIGNED:
- r = qir_SUB(c, qir_uniform_ui(c, 0), r);
- break;
- default:
- r = qir_FSUB(c, qir_uniform_f(c, 0.0), r);
- break;
- }
+static struct qreg
+ntq_get_src(struct vc4_compile *c, nir_src src, int i)
+{
+ struct hash_entry *entry;
+ if (src.is_ssa) {
+ entry = _mesa_hash_table_search(c->def_ht, src.ssa);
+ assert(i < src.ssa->num_components);
+ } else {
+ nir_register *reg = src.reg.reg;
+ entry = _mesa_hash_table_search(c->def_ht, reg);
+ assert(reg->num_array_elems == 0);
+ assert(src.reg.base_offset == 0);
+ assert(i < reg->num_components);
}
- return r;
-};
-
+ struct qreg *qregs = entry->data;
+ return qregs[i];
+}
-static void
-update_dst(struct vc4_compile *c, struct tgsi_full_instruction *tgsi_inst,
- int i, struct qreg val)
+static struct qreg
+ntq_get_alu_src(struct vc4_compile *c, nir_alu_instr *instr,
+ unsigned src)
{
- struct tgsi_dst_register *tgsi_dst = &tgsi_inst->Dst[0].Register;
+ assert(util_is_power_of_two(instr->dest.write_mask));
+ unsigned chan = ffs(instr->dest.write_mask) - 1;
+ struct qreg r = ntq_get_src(c, instr->src[src].src,
+ instr->src[src].swizzle[chan]);
- assert(!tgsi_dst->Indirect);
+ assert(!instr->src[src].abs);
+ assert(!instr->src[src].negate);
- switch (tgsi_dst->File) {
- case TGSI_FILE_TEMPORARY:
- c->temps[tgsi_dst->Index * 4 + i] = val;
- break;
- case TGSI_FILE_OUTPUT:
- c->outputs[tgsi_dst->Index * 4 + i] = val;
- c->num_outputs = MAX2(c->num_outputs,
- tgsi_dst->Index * 4 + i + 1);
- break;
- case TGSI_FILE_ADDRESS:
- assert(tgsi_dst->Index == 0);
- c->addr[i] = val;
- break;
- default:
- fprintf(stderr, "unknown dst file %d\n", tgsi_dst->File);
- abort();
- }
+ return r;
};
static struct qreg
}
static struct qreg
-tgsi_to_qir_alu(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
+ntq_rcp(struct vc4_compile *c, struct qreg x)
{
- struct qreg dst = qir_get_temp(c);
- qir_emit(c, qir_inst4(op, dst,
- src[0 * 4 + i],
- src[1 * 4 + i],
- src[2 * 4 + i],
- c->undef));
- return dst;
-}
-
-static struct qreg
-tgsi_to_qir_scalar(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- struct qreg dst = qir_get_temp(c);
- qir_emit(c, qir_inst(op, dst,
- src[0 * 4 + 0],
- c->undef));
- return dst;
-}
-
-static struct qreg
-tgsi_to_qir_rcp(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- struct qreg x = src[0 * 4 + 0];
struct qreg r = qir_RCP(c, x);
/* Apply a Newton-Raphson step to improve the accuracy. */
}
static struct qreg
-tgsi_to_qir_rsq(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
+ntq_rsq(struct vc4_compile *c, struct qreg x)
{
- struct qreg x = src[0 * 4 + 0];
struct qreg r = qir_RSQ(c, x);
/* Apply a Newton-Raphson step to improve the accuracy. */
}
static struct qreg
-tgsi_to_qir_umul(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
+ntq_umul(struct vc4_compile *c, struct qreg src0, struct qreg src1)
{
- struct qreg src0 = src[0 * 4 + i];
- struct qreg src0_hi = qir_SHR(c, src0, qir_uniform_ui(c, 24));
- struct qreg src1 = src[1 * 4 + i];
- struct qreg src1_hi = qir_SHR(c, src1, qir_uniform_ui(c, 24));
+ struct qreg src0_hi = qir_SHR(c, src0,
+ qir_uniform_ui(c, 24));
+ struct qreg src1_hi = qir_SHR(c, src1,
+ qir_uniform_ui(c, 24));
struct qreg hilo = qir_MUL24(c, src0_hi, src1);
struct qreg lohi = qir_MUL24(c, src0, src1_hi);
}
static struct qreg
-tgsi_to_qir_umad(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- return qir_ADD(c, tgsi_to_qir_umul(c, NULL, 0, src, i), src[2 * 4 + i]);
-}
-
-static struct qreg
-tgsi_to_qir_idiv(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
+ntq_idiv(struct vc4_compile *c, struct qreg src0, struct qreg src1)
{
return qir_FTOI(c, qir_FMUL(c,
- qir_ITOF(c, src[0 * 4 + i]),
- qir_RCP(c, qir_ITOF(c, src[1 * 4 + i]))));
-}
-
-static struct qreg
-tgsi_to_qir_ineg(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- return qir_SUB(c, qir_uniform_ui(c, 0), src[0 * 4 + i]);
-}
-
-static struct qreg
-tgsi_to_qir_seq(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- qir_SF(c, qir_FSUB(c, src[0 * 4 + i], src[1 * 4 + i]));
- return qir_SEL_X_0_ZS(c, qir_uniform_f(c, 1.0));
-}
-
-static struct qreg
-tgsi_to_qir_sne(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- qir_SF(c, qir_FSUB(c, src[0 * 4 + i], src[1 * 4 + i]));
- return qir_SEL_X_0_ZC(c, qir_uniform_f(c, 1.0));
-}
-
-static struct qreg
-tgsi_to_qir_slt(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- qir_SF(c, qir_FSUB(c, src[0 * 4 + i], src[1 * 4 + i]));
- return qir_SEL_X_0_NS(c, qir_uniform_f(c, 1.0));
-}
-
-static struct qreg
-tgsi_to_qir_sge(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- qir_SF(c, qir_FSUB(c, src[0 * 4 + i], src[1 * 4 + i]));
- return qir_SEL_X_0_NC(c, qir_uniform_f(c, 1.0));
-}
-
-static struct qreg
-tgsi_to_qir_fseq(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- qir_SF(c, qir_FSUB(c, src[0 * 4 + i], src[1 * 4 + i]));
- return qir_SEL_X_0_ZS(c, qir_uniform_ui(c, ~0));
-}
-
-static struct qreg
-tgsi_to_qir_fsne(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- qir_SF(c, qir_FSUB(c, src[0 * 4 + i], src[1 * 4 + i]));
- return qir_SEL_X_0_ZC(c, qir_uniform_ui(c, ~0));
-}
-
-static struct qreg
-tgsi_to_qir_fslt(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- qir_SF(c, qir_FSUB(c, src[0 * 4 + i], src[1 * 4 + i]));
- return qir_SEL_X_0_NS(c, qir_uniform_ui(c, ~0));
-}
-
-static struct qreg
-tgsi_to_qir_fsge(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- qir_SF(c, qir_FSUB(c, src[0 * 4 + i], src[1 * 4 + i]));
- return qir_SEL_X_0_NC(c, qir_uniform_ui(c, ~0));
-}
-
-static struct qreg
-tgsi_to_qir_useq(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- qir_SF(c, qir_SUB(c, src[0 * 4 + i], src[1 * 4 + i]));
- return qir_SEL_X_0_ZS(c, qir_uniform_ui(c, ~0));
-}
-
-static struct qreg
-tgsi_to_qir_usne(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- qir_SF(c, qir_SUB(c, src[0 * 4 + i], src[1 * 4 + i]));
- return qir_SEL_X_0_ZC(c, qir_uniform_ui(c, ~0));
-}
-
-static struct qreg
-tgsi_to_qir_islt(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- qir_SF(c, qir_SUB(c, src[0 * 4 + i], src[1 * 4 + i]));
- return qir_SEL_X_0_NS(c, qir_uniform_ui(c, ~0));
-}
-
-static struct qreg
-tgsi_to_qir_isge(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- qir_SF(c, qir_SUB(c, src[0 * 4 + i], src[1 * 4 + i]));
- return qir_SEL_X_0_NC(c, qir_uniform_ui(c, ~0));
-}
-
-static struct qreg
-tgsi_to_qir_cmp(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- qir_SF(c, src[0 * 4 + i]);
- return qir_SEL_X_Y_NS(c,
- src[1 * 4 + i],
- src[2 * 4 + i]);
-}
-
-static struct qreg
-tgsi_to_qir_ucmp(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- qir_SF(c, src[0 * 4 + i]);
- return qir_SEL_X_Y_ZC(c,
- src[1 * 4 + i],
- src[2 * 4 + i]);
-}
-
-static struct qreg
-tgsi_to_qir_mad(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- return qir_FADD(c,
- qir_FMUL(c,
- src[0 * 4 + i],
- src[1 * 4 + i]),
- src[2 * 4 + i]);
-}
-
-static struct qreg
-tgsi_to_qir_lrp(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- struct qreg src0 = src[0 * 4 + i];
- struct qreg src1 = src[1 * 4 + i];
- struct qreg src2 = src[2 * 4 + i];
-
- /* LRP is:
- * src0 * src1 + (1 - src0) * src2.
- * -> src0 * src1 + src2 - src0 * src2
- * -> src2 + src0 * (src1 - src2)
- */
- return qir_FADD(c, src2, qir_FMUL(c, src0, qir_FSUB(c, src1, src2)));
-
+ qir_ITOF(c, src0),
+ qir_RCP(c, qir_ITOF(c, src1))));
}
static void
-tgsi_to_qir_tex(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src)
-{
- assert(!tgsi_inst->Instruction.Saturate);
-
- struct qreg s = src[0 * 4 + 0];
- struct qreg t = src[0 * 4 + 1];
- struct qreg r = src[0 * 4 + 2];
- uint32_t unit = tgsi_inst->Src[1].Register.Index;
- bool is_txl = tgsi_inst->Instruction.Opcode == TGSI_OPCODE_TXL;
-
- struct qreg proj = c->undef;
- if (tgsi_inst->Instruction.Opcode == TGSI_OPCODE_TXP) {
- proj = qir_RCP(c, src[0 * 4 + 3]);
- s = qir_FMUL(c, s, proj);
- t = qir_FMUL(c, t, proj);
+ntq_emit_tex(struct vc4_compile *c, nir_tex_instr *instr)
+{
+ struct qreg s, t, r, lod, proj, compare;
+ bool is_txb = false, is_txl = false, has_proj = false;
+ unsigned unit = instr->sampler_index;
+
+ for (unsigned i = 0; i < instr->num_srcs; i++) {
+ switch (instr->src[i].src_type) {
+ case nir_tex_src_coord:
+ s = ntq_get_src(c, instr->src[i].src, 0);
+ if (instr->sampler_dim != GLSL_SAMPLER_DIM_1D)
+ t = ntq_get_src(c, instr->src[i].src, 1);
+ if (instr->sampler_dim == GLSL_SAMPLER_DIM_CUBE)
+ r = ntq_get_src(c, instr->src[i].src, 2);
+ break;
+ case nir_tex_src_bias:
+ lod = ntq_get_src(c, instr->src[i].src, 0);
+ is_txb = true;
+ break;
+ case nir_tex_src_lod:
+ lod = ntq_get_src(c, instr->src[i].src, 0);
+ is_txl = true;
+ break;
+ case nir_tex_src_comparitor:
+ compare = ntq_get_src(c, instr->src[i].src, 0);
+ break;
+ case nir_tex_src_projector:
+ proj = qir_RCP(c, ntq_get_src(c, instr->src[i].src, 0));
+ s = qir_FMUL(c, s, proj);
+ t = qir_FMUL(c, t, proj);
+ has_proj = true;
+ break;
+ default:
+ unreachable("unknown texture source");
+ }
}
struct qreg texture_u[] = {
* we have to rescale from ([0, width], [0, height]) to ([0, 1], [0,
* 1]).
*/
- if (tgsi_inst->Texture.Texture == TGSI_TEXTURE_RECT ||
- tgsi_inst->Texture.Texture == TGSI_TEXTURE_SHADOWRECT) {
+ if (instr->sampler_dim == GLSL_SAMPLER_DIM_RECT) {
s = qir_FMUL(c, s,
qir_uniform(c, QUNIFORM_TEXRECT_SCALE_X, unit));
t = qir_FMUL(c, t,
qir_uniform(c, QUNIFORM_TEXRECT_SCALE_Y, unit));
}
- if (tgsi_inst->Texture.Texture == TGSI_TEXTURE_CUBE ||
- tgsi_inst->Texture.Texture == TGSI_TEXTURE_SHADOWCUBE ||
- is_txl) {
+ if (instr->sampler_dim == GLSL_SAMPLER_DIM_CUBE || is_txl) {
texture_u[2] = qir_uniform(c, QUNIFORM_TEXTURE_CONFIG_P2,
unit | (is_txl << 16));
}
- if (tgsi_inst->Texture.Texture == TGSI_TEXTURE_CUBE ||
- tgsi_inst->Texture.Texture == TGSI_TEXTURE_SHADOWCUBE) {
+ if (instr->sampler_dim == GLSL_SAMPLER_DIM_CUBE) {
struct qreg ma = qir_FMAXABS(c, qir_FMAXABS(c, s, t), r);
struct qreg rcp_ma = qir_RCP(c, ma);
s = qir_FMUL(c, s, rcp_ma);
qir_TEX_T(c, t, texture_u[next_texture_u++]);
- if (tgsi_inst->Instruction.Opcode == TGSI_OPCODE_TXB ||
- tgsi_inst->Instruction.Opcode == TGSI_OPCODE_TXL)
- qir_TEX_B(c, src[0 * 4 + 3], texture_u[next_texture_u++]);
+ if (is_txl || is_txb)
+ qir_TEX_B(c, lod, texture_u[next_texture_u++]);
qir_TEX_S(c, s, texture_u[next_texture_u++]);
struct qreg one = qir_uniform_f(c, 1.0f);
if (c->key->tex[unit].compare_mode) {
- struct qreg compare = src[0 * 4 + 2];
-
- if (tgsi_inst->Instruction.Opcode == TGSI_OPCODE_TXP)
+ if (has_proj)
compare = qir_FMUL(c, compare, proj);
switch (c->key->tex[unit].compare_func) {
texture_output[i]);
}
+ struct qreg *dest = ntq_get_dest(c, instr->dest);
for (int i = 0; i < 4; i++) {
- if (!(tgsi_inst->Dst[0].Register.WriteMask & (1 << i)))
- continue;
-
- update_dst(c, tgsi_inst, i,
- get_swizzled_channel(c, texture_output,
- c->key->tex[unit].swizzle[i]));
+ dest[i] = get_swizzled_channel(c, texture_output,
+ c->key->tex[unit].swizzle[i]);
}
}
-static struct qreg
-tgsi_to_qir_trunc(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- return qir_ITOF(c, qir_FTOI(c, src[0 * 4 + i]));
-}
-
/**
* Computes x - floor(x), which is tricky because our FTOI truncates (rounds
* to zero).
*/
static struct qreg
-tgsi_to_qir_frc(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
+ntq_ffract(struct vc4_compile *c, struct qreg src)
{
- struct qreg trunc = qir_ITOF(c, qir_FTOI(c, src[0 * 4 + i]));
- struct qreg diff = qir_FSUB(c, src[0 * 4 + i], trunc);
+ struct qreg trunc = qir_ITOF(c, qir_FTOI(c, src));
+ struct qreg diff = qir_FSUB(c, src, trunc);
qir_SF(c, diff);
return qir_SEL_X_Y_NS(c,
qir_FADD(c, diff, qir_uniform_f(c, 1.0)),
* zero).
*/
static struct qreg
-tgsi_to_qir_flr(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
+ntq_ffloor(struct vc4_compile *c, struct qreg src)
{
- struct qreg trunc = qir_ITOF(c, qir_FTOI(c, src[0 * 4 + i]));
+ struct qreg trunc = qir_ITOF(c, qir_FTOI(c, src));
/* This will be < 0 if we truncated and the truncation was of a value
* that was < 0 in the first place.
*/
- qir_SF(c, qir_FSUB(c, src[0 * 4 + i], trunc));
+ qir_SF(c, qir_FSUB(c, src, trunc));
return qir_SEL_X_Y_NS(c,
qir_FSUB(c, trunc, qir_uniform_f(c, 1.0)),
* zero).
*/
static struct qreg
-tgsi_to_qir_ceil(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
+ntq_fceil(struct vc4_compile *c, struct qreg src)
{
- struct qreg trunc = qir_ITOF(c, qir_FTOI(c, src[0 * 4 + i]));
+ struct qreg trunc = qir_ITOF(c, qir_FTOI(c, src));
/* This will be < 0 if we truncated and the truncation was of a value
* that was > 0 in the first place.
*/
- qir_SF(c, qir_FSUB(c, trunc, src[0 * 4 + i]));
+ qir_SF(c, qir_FSUB(c, trunc, src));
return qir_SEL_X_Y_NS(c,
qir_FADD(c, trunc, qir_uniform_f(c, 1.0)),
}
static struct qreg
-tgsi_to_qir_abs(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- struct qreg arg = src[0 * 4 + i];
- return qir_FMAXABS(c, arg, arg);
-}
-
-/* Note that this instruction replicates its result from the x channel */
-static struct qreg
-tgsi_to_qir_sin(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
+ntq_fsin(struct vc4_compile *c, struct qreg src)
{
float coeff[] = {
-2.0 * M_PI,
struct qreg scaled_x =
qir_FMUL(c,
- src[0 * 4 + 0],
+ src,
qir_uniform_f(c, 1.0f / (M_PI * 2.0f)));
struct qreg x = qir_FADD(c,
- tgsi_to_qir_frc(c, NULL, 0, &scaled_x, 0),
+ ntq_ffract(c, scaled_x),
qir_uniform_f(c, -0.5));
struct qreg x2 = qir_FMUL(c, x, x);
struct qreg sum = qir_FMUL(c, x, qir_uniform_f(c, coeff[0]));
return sum;
}
-/* Note that this instruction replicates its result from the x channel */
static struct qreg
-tgsi_to_qir_cos(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
+ntq_fcos(struct vc4_compile *c, struct qreg src)
{
float coeff[] = {
-1.0f,
};
struct qreg scaled_x =
- qir_FMUL(c, src[0 * 4 + 0],
+ qir_FMUL(c, src,
qir_uniform_f(c, 1.0f / (M_PI * 2.0f)));
struct qreg x_frac = qir_FADD(c,
- tgsi_to_qir_frc(c, NULL, 0, &scaled_x, 0),
+ ntq_ffract(c, scaled_x),
qir_uniform_f(c, -0.5));
struct qreg sum = qir_uniform_f(c, coeff[0]);
}
static struct qreg
-tgsi_to_qir_clamp(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
+ntq_fsign(struct vc4_compile *c, struct qreg src)
{
- return qir_FMAX(c, qir_FMIN(c,
- src[0 * 4 + i],
- src[2 * 4 + i]),
- src[1 * 4 + i]);
-}
-
-static struct qreg
-tgsi_to_qir_ssg(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- qir_SF(c, src[0 * 4 + i]);
+ qir_SF(c, src);
return qir_SEL_X_Y_NC(c,
qir_SEL_X_0_ZC(c, qir_uniform_f(c, 1.0)),
qir_uniform_f(c, -1.0));
}
-/* Compare to tgsi_to_qir_flr() for the floor logic. */
-static struct qreg
-tgsi_to_qir_arl(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- struct qreg trunc = qir_FTOI(c, src[0 * 4 + i]);
- struct qreg scaled = qir_SHL(c, trunc, qir_uniform_ui(c, 4));
-
- qir_SF(c, qir_FSUB(c, src[0 * 4 + i], qir_ITOF(c, trunc)));
-
- return qir_SEL_X_Y_NS(c, qir_SUB(c, scaled, qir_uniform_ui(c, 4)),
- scaled);
-}
-
-static struct qreg
-tgsi_to_qir_uarl(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op, struct qreg *src, int i)
-{
- return qir_SHL(c, src[0 * 4 + i], qir_uniform_ui(c, 4));
-}
-
static struct qreg
get_channel_from_vpm(struct vc4_compile *c,
struct qreg *vpm_reads,
}
static void
-tgsi_to_qir_kill_if(struct vc4_compile *c, struct qreg *src, int i)
-{
- if (c->discard.file == QFILE_NULL)
- c->discard = qir_uniform_f(c, 0.0);
- qir_SF(c, src[0 * 4 + i]);
- c->discard = qir_SEL_X_Y_NS(c, qir_uniform_f(c, 1.0),
- c->discard);
-}
-
-static void
emit_fragcoord_input(struct vc4_compile *c, int attr)
{
c->inputs[attr * 4 + 0] = qir_FRAG_X(c);
static void
emit_fragment_input(struct vc4_compile *c, int attr,
- struct tgsi_full_declaration *decl)
+ unsigned semantic_name, unsigned semantic_index)
{
for (int i = 0; i < 4; i++) {
c->inputs[attr * 4 + i] =
emit_fragment_varying(c,
- decl->Semantic.Name,
- decl->Semantic.Index,
+ semantic_name,
+ semantic_index,
i);
c->num_inputs++;
}
}
static void
-add_array_info(struct vc4_compile *c, uint32_t array_id,
- uint32_t start, uint32_t size)
+declare_uniform_range(struct vc4_compile *c, uint32_t start, uint32_t size)
{
+ unsigned array_id = c->num_uniform_ranges++;
if (array_id >= c->ubo_ranges_array_size) {
c->ubo_ranges_array_size = MAX2(c->ubo_ranges_array_size * 2,
array_id + 1);
}
static void
-emit_tgsi_declaration(struct vc4_compile *c,
- struct tgsi_full_declaration *decl)
+ntq_emit_alu(struct vc4_compile *c, nir_alu_instr *instr)
{
- switch (decl->Declaration.File) {
- case TGSI_FILE_TEMPORARY: {
- uint32_t old_size = c->temps_array_size;
- resize_qreg_array(c, &c->temps, &c->temps_array_size,
- (decl->Range.Last + 1) * 4);
+ /* Vectors are special in that they have non-scalarized writemasks,
+ * and just take the first swizzle channel for each argument in order
+ * into each writemask channel.
+ */
+ if (instr->op == nir_op_vec2 ||
+ instr->op == nir_op_vec3 ||
+ instr->op == nir_op_vec4) {
+ struct qreg srcs[4];
+ for (int i = 0; i < nir_op_infos[instr->op].num_inputs; i++)
+ srcs[i] = ntq_get_src(c, instr->src[i].src,
+ instr->src[i].swizzle[0]);
+ struct qreg *dest = ntq_get_dest(c, instr->dest.dest);
+ for (int i = 0; i < nir_op_infos[instr->op].num_inputs; i++)
+ dest[i] = srcs[i];
+ return;
+ }
- for (int i = old_size; i < c->temps_array_size; i++)
- c->temps[i] = qir_uniform_ui(c, 0);
- break;
+ /* General case: We can just grab the one used channel per src. */
+ struct qreg src[nir_op_infos[instr->op].num_inputs];
+ for (int i = 0; i < nir_op_infos[instr->op].num_inputs; i++) {
+ src[i] = ntq_get_alu_src(c, instr, i);
}
- case TGSI_FILE_INPUT:
- resize_qreg_array(c, &c->inputs, &c->inputs_array_size,
- (decl->Range.Last + 1) * 4);
-
- for (int i = decl->Range.First;
- i <= decl->Range.Last;
- i++) {
- if (c->stage == QSTAGE_FRAG) {
- if (decl->Semantic.Name ==
- TGSI_SEMANTIC_POSITION) {
- emit_fragcoord_input(c, i);
- } else if (decl->Semantic.Name == TGSI_SEMANTIC_FACE) {
- emit_face_input(c, i);
- } else if (decl->Semantic.Name == TGSI_SEMANTIC_GENERIC &&
- (c->fs_key->point_sprite_mask &
- (1 << decl->Semantic.Index))) {
- emit_point_coord_input(c, i);
- } else {
- emit_fragment_input(c, i, decl);
- }
- } else {
- emit_vertex_input(c, i);
- }
- }
- break;
+ /* Pick the channel to store the output in. */
+ assert(!instr->dest.saturate);
+ struct qreg *dest = ntq_get_dest(c, instr->dest.dest);
+ assert(util_is_power_of_two(instr->dest.write_mask));
+ dest += ffs(instr->dest.write_mask) - 1;
- case TGSI_FILE_OUTPUT: {
- for (int i = 0; i < 4; i++) {
- add_output(c,
- decl->Range.First * 4 + i,
- decl->Semantic.Name,
- decl->Semantic.Index,
- i);
- }
+ switch (instr->op) {
+ case nir_op_fmov:
+ case nir_op_imov:
+ *dest = qir_MOV(c, src[0]);
+ break;
+ case nir_op_fmul:
+ *dest = qir_FMUL(c, src[0], src[1]);
+ break;
+ case nir_op_fadd:
+ *dest = qir_FADD(c, src[0], src[1]);
+ break;
+ case nir_op_fsub:
+ *dest = qir_FSUB(c, src[0], src[1]);
+ break;
+ case nir_op_fmin:
+ *dest = qir_FMIN(c, src[0], src[1]);
+ break;
+ case nir_op_fmax:
+ *dest = qir_FMAX(c, src[0], src[1]);
+ break;
+ case nir_op_f2i:
+ *dest = qir_FTOI(c, src[0]);
+ break;
+ case nir_op_i2f:
+ *dest = qir_ITOF(c, src[0]);
+ break;
+ case nir_op_b2f:
+ *dest = qir_AND(c, src[0], qir_uniform_f(c, 1.0));
+ break;
+ case nir_op_iadd:
+ *dest = qir_ADD(c, src[0], src[1]);
+ break;
+ case nir_op_ushr:
+ *dest = qir_SHR(c, src[0], src[1]);
+ break;
+ case nir_op_isub:
+ *dest = qir_SUB(c, src[0], src[1]);
+ break;
+ case nir_op_ishr:
+ *dest = qir_ASR(c, src[0], src[1]);
+ break;
+ case nir_op_ishl:
+ *dest = qir_SHL(c, src[0], src[1]);
+ break;
+ case nir_op_imin:
+ *dest = qir_MIN(c, src[0], src[1]);
+ break;
+ case nir_op_imax:
+ *dest = qir_MAX(c, src[0], src[1]);
+ break;
+ case nir_op_iand:
+ *dest = qir_AND(c, src[0], src[1]);
+ break;
+ case nir_op_ior:
+ *dest = qir_OR(c, src[0], src[1]);
+ break;
+ case nir_op_ixor:
+ *dest = qir_XOR(c, src[0], src[1]);
+ break;
+ case nir_op_inot:
+ *dest = qir_NOT(c, src[0]);
+ break;
- switch (decl->Semantic.Name) {
- case TGSI_SEMANTIC_POSITION:
- c->output_position_index = decl->Range.First * 4;
- break;
- case TGSI_SEMANTIC_CLIPVERTEX:
- c->output_clipvertex_index = decl->Range.First * 4;
- break;
- case TGSI_SEMANTIC_COLOR:
- c->output_color_index = decl->Range.First * 4;
- break;
- case TGSI_SEMANTIC_PSIZE:
- c->output_point_size_index = decl->Range.First * 4;
- break;
- }
+ case nir_op_imul:
+ *dest = ntq_umul(c, src[0], src[1]);
+ break;
+ case nir_op_idiv:
+ *dest = ntq_idiv(c, src[0], src[1]);
+ break;
+ case nir_op_seq:
+ qir_SF(c, qir_FSUB(c, src[0], src[1]));
+ *dest = qir_SEL_X_0_ZS(c, qir_uniform_f(c, 1.0));
+ break;
+ case nir_op_sne:
+ qir_SF(c, qir_FSUB(c, src[0], src[1]));
+ *dest = qir_SEL_X_0_ZC(c, qir_uniform_f(c, 1.0));
+ break;
+ case nir_op_sge:
+ qir_SF(c, qir_FSUB(c, src[0], src[1]));
+ *dest = qir_SEL_X_0_NC(c, qir_uniform_f(c, 1.0));
+ break;
+ case nir_op_slt:
+ qir_SF(c, qir_FSUB(c, src[0], src[1]));
+ *dest = qir_SEL_X_0_NS(c, qir_uniform_f(c, 1.0));
+ break;
+ case nir_op_feq:
+ qir_SF(c, qir_FSUB(c, src[0], src[1]));
+ *dest = qir_SEL_X_0_ZS(c, qir_uniform_ui(c, ~0));
+ break;
+ case nir_op_fne:
+ qir_SF(c, qir_FSUB(c, src[0], src[1]));
+ *dest = qir_SEL_X_0_ZC(c, qir_uniform_ui(c, ~0));
+ break;
+ case nir_op_fge:
+ qir_SF(c, qir_FSUB(c, src[0], src[1]));
+ *dest = qir_SEL_X_0_NC(c, qir_uniform_ui(c, ~0));
+ break;
+ case nir_op_flt:
+ qir_SF(c, qir_FSUB(c, src[0], src[1]));
+ *dest = qir_SEL_X_0_NS(c, qir_uniform_ui(c, ~0));
+ break;
+ case nir_op_ieq:
+ qir_SF(c, qir_SUB(c, src[0], src[1]));
+ *dest = qir_SEL_X_0_ZS(c, qir_uniform_ui(c, ~0));
+ break;
+ case nir_op_ine:
+ qir_SF(c, qir_SUB(c, src[0], src[1]));
+ *dest = qir_SEL_X_0_ZC(c, qir_uniform_ui(c, ~0));
+ break;
+ case nir_op_ige:
+ qir_SF(c, qir_SUB(c, src[0], src[1]));
+ *dest = qir_SEL_X_0_NC(c, qir_uniform_ui(c, ~0));
+ break;
+ case nir_op_ilt:
+ qir_SF(c, qir_SUB(c, src[0], src[1]));
+ *dest = qir_SEL_X_0_NS(c, qir_uniform_ui(c, ~0));
break;
- case TGSI_FILE_CONSTANT:
- add_array_info(c,
- decl->Array.ArrayID,
- decl->Range.First * 16,
- (decl->Range.Last -
- decl->Range.First + 1) * 16);
+ case nir_op_bcsel:
+ qir_SF(c, src[0]);
+ *dest = qir_SEL_X_Y_NS(c, src[1], src[2]);
+ break;
+ case nir_op_fcsel:
+ qir_SF(c, src[0]);
+ *dest = qir_SEL_X_Y_ZC(c, src[1], src[2]);
break;
- }
- }
-}
-static void
-emit_tgsi_instruction(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst)
-{
- static const struct {
- enum qop op;
- struct qreg (*func)(struct vc4_compile *c,
- struct tgsi_full_instruction *tgsi_inst,
- enum qop op,
- struct qreg *src, int i);
- } op_trans[] = {
- [TGSI_OPCODE_MOV] = { QOP_MOV, tgsi_to_qir_alu },
- [TGSI_OPCODE_ABS] = { 0, tgsi_to_qir_abs },
- [TGSI_OPCODE_MUL] = { QOP_FMUL, tgsi_to_qir_alu },
- [TGSI_OPCODE_ADD] = { QOP_FADD, tgsi_to_qir_alu },
- [TGSI_OPCODE_SUB] = { QOP_FSUB, tgsi_to_qir_alu },
- [TGSI_OPCODE_MIN] = { QOP_FMIN, tgsi_to_qir_alu },
- [TGSI_OPCODE_MAX] = { QOP_FMAX, tgsi_to_qir_alu },
- [TGSI_OPCODE_F2I] = { QOP_FTOI, tgsi_to_qir_alu },
- [TGSI_OPCODE_I2F] = { QOP_ITOF, tgsi_to_qir_alu },
- [TGSI_OPCODE_UADD] = { QOP_ADD, tgsi_to_qir_alu },
- [TGSI_OPCODE_USHR] = { QOP_SHR, tgsi_to_qir_alu },
- [TGSI_OPCODE_ISHR] = { QOP_ASR, tgsi_to_qir_alu },
- [TGSI_OPCODE_SHL] = { QOP_SHL, tgsi_to_qir_alu },
- [TGSI_OPCODE_IMIN] = { QOP_MIN, tgsi_to_qir_alu },
- [TGSI_OPCODE_IMAX] = { QOP_MAX, tgsi_to_qir_alu },
- [TGSI_OPCODE_AND] = { QOP_AND, tgsi_to_qir_alu },
- [TGSI_OPCODE_OR] = { QOP_OR, tgsi_to_qir_alu },
- [TGSI_OPCODE_XOR] = { QOP_XOR, tgsi_to_qir_alu },
- [TGSI_OPCODE_NOT] = { QOP_NOT, tgsi_to_qir_alu },
-
- [TGSI_OPCODE_UMUL] = { 0, tgsi_to_qir_umul },
- [TGSI_OPCODE_UMAD] = { 0, tgsi_to_qir_umad },
- [TGSI_OPCODE_IDIV] = { 0, tgsi_to_qir_idiv },
- [TGSI_OPCODE_INEG] = { 0, tgsi_to_qir_ineg },
-
- [TGSI_OPCODE_SEQ] = { 0, tgsi_to_qir_seq },
- [TGSI_OPCODE_SNE] = { 0, tgsi_to_qir_sne },
- [TGSI_OPCODE_SGE] = { 0, tgsi_to_qir_sge },
- [TGSI_OPCODE_SLT] = { 0, tgsi_to_qir_slt },
- [TGSI_OPCODE_FSEQ] = { 0, tgsi_to_qir_fseq },
- [TGSI_OPCODE_FSNE] = { 0, tgsi_to_qir_fsne },
- [TGSI_OPCODE_FSGE] = { 0, tgsi_to_qir_fsge },
- [TGSI_OPCODE_FSLT] = { 0, tgsi_to_qir_fslt },
- [TGSI_OPCODE_USEQ] = { 0, tgsi_to_qir_useq },
- [TGSI_OPCODE_USNE] = { 0, tgsi_to_qir_usne },
- [TGSI_OPCODE_ISGE] = { 0, tgsi_to_qir_isge },
- [TGSI_OPCODE_ISLT] = { 0, tgsi_to_qir_islt },
-
- [TGSI_OPCODE_CMP] = { 0, tgsi_to_qir_cmp },
- [TGSI_OPCODE_UCMP] = { 0, tgsi_to_qir_ucmp },
- [TGSI_OPCODE_MAD] = { 0, tgsi_to_qir_mad },
- [TGSI_OPCODE_RCP] = { QOP_RCP, tgsi_to_qir_rcp },
- [TGSI_OPCODE_RSQ] = { QOP_RSQ, tgsi_to_qir_rsq },
- [TGSI_OPCODE_EX2] = { QOP_EXP2, tgsi_to_qir_scalar },
- [TGSI_OPCODE_LG2] = { QOP_LOG2, tgsi_to_qir_scalar },
- [TGSI_OPCODE_LRP] = { 0, tgsi_to_qir_lrp },
- [TGSI_OPCODE_TRUNC] = { 0, tgsi_to_qir_trunc },
- [TGSI_OPCODE_CEIL] = { 0, tgsi_to_qir_ceil },
- [TGSI_OPCODE_FRC] = { 0, tgsi_to_qir_frc },
- [TGSI_OPCODE_FLR] = { 0, tgsi_to_qir_flr },
- [TGSI_OPCODE_SIN] = { 0, tgsi_to_qir_sin },
- [TGSI_OPCODE_COS] = { 0, tgsi_to_qir_cos },
- [TGSI_OPCODE_CLAMP] = { 0, tgsi_to_qir_clamp },
- [TGSI_OPCODE_SSG] = { 0, tgsi_to_qir_ssg },
- [TGSI_OPCODE_ARL] = { 0, tgsi_to_qir_arl },
- [TGSI_OPCODE_UARL] = { 0, tgsi_to_qir_uarl },
- };
- static int asdf = 0;
- uint32_t tgsi_op = tgsi_inst->Instruction.Opcode;
+ case nir_op_frcp:
+ *dest = ntq_rcp(c, src[0]);
+ break;
+ case nir_op_frsq:
+ *dest = ntq_rsq(c, src[0]);
+ break;
+ case nir_op_fexp2:
+ *dest = qir_EXP2(c, src[0]);
+ break;
+ case nir_op_flog2:
+ *dest = qir_LOG2(c, src[0]);
+ break;
- if (tgsi_op == TGSI_OPCODE_END)
- return;
+ case nir_op_ftrunc:
+ *dest = qir_ITOF(c, qir_FTOI(c, src[0]));
+ break;
+ case nir_op_fceil:
+ *dest = ntq_fceil(c, src[0]);
+ break;
+ case nir_op_ffract:
+ *dest = ntq_ffract(c, src[0]);
+ break;
+ case nir_op_ffloor:
+ *dest = ntq_ffloor(c, src[0]);
+ break;
- struct qreg src_regs[12];
- for (int s = 0; s < 3; s++) {
- for (int i = 0; i < 4; i++) {
- src_regs[4 * s + i] =
- get_src(c, tgsi_inst->Instruction.Opcode,
- &tgsi_inst->Src[s], i);
- }
- }
+ case nir_op_fsin:
+ *dest = ntq_fsin(c, src[0]);
+ break;
+ case nir_op_fcos:
+ *dest = ntq_fcos(c, src[0]);
+ break;
- switch (tgsi_op) {
- case TGSI_OPCODE_TEX:
- case TGSI_OPCODE_TXP:
- case TGSI_OPCODE_TXB:
- case TGSI_OPCODE_TXL:
- tgsi_to_qir_tex(c, tgsi_inst,
- op_trans[tgsi_op].op, src_regs);
- return;
- case TGSI_OPCODE_KILL:
- c->discard = qir_uniform_f(c, 1.0);
- return;
- case TGSI_OPCODE_KILL_IF:
- for (int i = 0; i < 4; i++)
- tgsi_to_qir_kill_if(c, src_regs, i);
- return;
- default:
+ case nir_op_fsign:
+ *dest = ntq_fsign(c, src[0]);
+ break;
+ case nir_op_fabs:
+ *dest = qir_FMAXABS(c, src[0], src[0]);
break;
- }
- if (tgsi_op > ARRAY_SIZE(op_trans) || !(op_trans[tgsi_op].func)) {
- fprintf(stderr, "unknown tgsi inst: ");
- tgsi_dump_instruction(tgsi_inst, asdf++);
+ default:
+ fprintf(stderr, "unknown NIR ALU inst: ");
+ nir_print_instr(&instr->instr, stderr);
fprintf(stderr, "\n");
abort();
}
-
- for (int i = 0; i < 4; i++) {
- if (!(tgsi_inst->Dst[0].Register.WriteMask & (1 << i)))
- continue;
-
- struct qreg result;
-
- result = op_trans[tgsi_op].func(c, tgsi_inst,
- op_trans[tgsi_op].op,
- src_regs, i);
-
- if (tgsi_inst->Instruction.Saturate) {
- float low = (tgsi_inst->Instruction.Saturate ==
- TGSI_SAT_MINUS_PLUS_ONE ? -1.0 : 0.0);
- result = qir_FMAX(c,
- qir_FMIN(c,
- result,
- qir_uniform_f(c, 1.0)),
- qir_uniform_f(c, low));
- }
-
- update_dst(c, tgsi_inst, i, result);
- }
-}
-
-static void
-parse_tgsi_immediate(struct vc4_compile *c, struct tgsi_full_immediate *imm)
-{
- for (int i = 0; i < 4; i++) {
- unsigned n = c->num_consts++;
- resize_qreg_array(c, &c->consts, &c->consts_array_size, n + 1);
- c->consts[n] = qir_uniform_ui(c, imm->u[i].Uint);
- }
}
static struct qreg
qir_SF(c, dist);
if (c->discard.file == QFILE_NULL)
- c->discard = qir_uniform_f(c, 0.0);
+ c->discard = qir_uniform_ui(c, 0);
- c->discard = qir_SEL_X_Y_NS(c, qir_uniform_f(c, 1.0),
+ c->discard = qir_SEL_X_Y_NS(c, qir_uniform_ui(c, ~0),
c->discard);
}
}
src_alpha = qir_uniform_f(c, 1.0);
if (c->discard.file == QFILE_NULL)
- c->discard = qir_uniform_f(c, 0.0);
+ c->discard = qir_uniform_ui(c, 0);
switch (c->fs_key->alpha_test_func) {
case PIPE_FUNC_NEVER:
- c->discard = qir_uniform_f(c, 1.0);
+ c->discard = qir_uniform_ui(c, ~0);
break;
case PIPE_FUNC_ALWAYS:
break;
case PIPE_FUNC_EQUAL:
qir_SF(c, qir_FSUB(c, src_alpha, alpha_ref));
c->discard = qir_SEL_X_Y_ZS(c, c->discard,
- qir_uniform_f(c, 1.0));
+ qir_uniform_ui(c, ~0));
break;
case PIPE_FUNC_NOTEQUAL:
qir_SF(c, qir_FSUB(c, src_alpha, alpha_ref));
c->discard = qir_SEL_X_Y_ZC(c, c->discard,
- qir_uniform_f(c, 1.0));
+ qir_uniform_ui(c, ~0));
break;
case PIPE_FUNC_GREATER:
qir_SF(c, qir_FSUB(c, src_alpha, alpha_ref));
c->discard = qir_SEL_X_Y_NC(c, c->discard,
- qir_uniform_f(c, 1.0));
+ qir_uniform_ui(c, ~0));
break;
case PIPE_FUNC_GEQUAL:
qir_SF(c, qir_FSUB(c, alpha_ref, src_alpha));
c->discard = qir_SEL_X_Y_NS(c, c->discard,
- qir_uniform_f(c, 1.0));
+ qir_uniform_ui(c, ~0));
break;
case PIPE_FUNC_LESS:
qir_SF(c, qir_FSUB(c, src_alpha, alpha_ref));
c->discard = qir_SEL_X_Y_NS(c, c->discard,
- qir_uniform_f(c, 1.0));
+ qir_uniform_ui(c, ~0));
break;
case PIPE_FUNC_LEQUAL:
qir_SF(c, qir_FSUB(c, alpha_ref, src_alpha));
c->discard = qir_SEL_X_Y_NC(c, c->discard,
- qir_uniform_f(c, 1.0));
+ qir_uniform_ui(c, ~0));
break;
}
}
emit_point_size_write(c);
}
+static void
+vc4_optimize_nir(struct nir_shader *s)
+{
+ bool progress;
+
+ do {
+ progress = false;
+
+ nir_lower_vars_to_ssa(s);
+ nir_lower_alu_to_scalar(s);
+
+ progress = nir_copy_prop(s) || progress;
+ progress = nir_opt_dce(s) || progress;
+ progress = nir_opt_cse(s) || progress;
+ progress = nir_opt_peephole_select(s) || progress;
+ progress = nir_opt_algebraic(s) || progress;
+ progress = nir_opt_constant_folding(s) || progress;
+ } while (progress);
+}
+
+static int
+driver_location_compare(const void *in_a, const void *in_b)
+{
+ const nir_variable *const *a = in_a;
+ const nir_variable *const *b = in_b;
+
+ return (*a)->data.driver_location - (*b)->data.driver_location;
+}
+
+static void
+ntq_setup_inputs(struct vc4_compile *c)
+{
+ unsigned num_entries = 0;
+ foreach_list_typed(nir_variable, var, node, &c->s->inputs)
+ num_entries++;
+
+ nir_variable *vars[num_entries];
+
+ unsigned i = 0;
+ foreach_list_typed(nir_variable, var, node, &c->s->inputs)
+ vars[i++] = var;
+
+ /* Sort the variables so that we emit the input setup in
+ * driver_location order. This is required for VPM reads, whose data
+ * is fetched into the VPM in driver_location (TGSI register index)
+ * order.
+ */
+ qsort(&vars, num_entries, sizeof(*vars), driver_location_compare);
+
+ for (unsigned i = 0; i < num_entries; i++) {
+ nir_variable *var = vars[i];
+ unsigned array_len = MAX2(glsl_get_length(var->type), 1);
+ /* XXX: map loc slots to semantics */
+ unsigned semantic_name = var->data.location;
+ unsigned semantic_index = var->data.index;
+ unsigned loc = var->data.driver_location;
+
+ assert(array_len == 1);
+ resize_qreg_array(c, &c->inputs, &c->inputs_array_size,
+ (loc + 1) * 4);
+
+ if (c->stage == QSTAGE_FRAG) {
+ if (semantic_name == TGSI_SEMANTIC_POSITION) {
+ emit_fragcoord_input(c, loc);
+ } else if (semantic_name == TGSI_SEMANTIC_FACE) {
+ emit_face_input(c, loc);
+ } else if (semantic_name == TGSI_SEMANTIC_GENERIC &&
+ (c->fs_key->point_sprite_mask &
+ (1 << semantic_index))) {
+ emit_point_coord_input(c, loc);
+ } else {
+ emit_fragment_input(c, loc,
+ semantic_name,
+ semantic_index);
+ }
+ } else {
+ emit_vertex_input(c, loc);
+ }
+ }
+}
+
+static void
+ntq_setup_outputs(struct vc4_compile *c)
+{
+ foreach_list_typed(nir_variable, var, node, &c->s->outputs) {
+ unsigned array_len = MAX2(glsl_get_length(var->type), 1);
+ /* XXX: map loc slots to semantics */
+ unsigned semantic_name = var->data.location;
+ unsigned semantic_index = var->data.index;
+ unsigned loc = var->data.driver_location * 4;
+
+ assert(array_len == 1);
+
+ for (int i = 0; i < 4; i++) {
+ add_output(c,
+ loc + i,
+ semantic_name,
+ semantic_index,
+ i);
+ }
+
+ switch (semantic_name) {
+ case TGSI_SEMANTIC_POSITION:
+ c->output_position_index = loc;
+ break;
+ case TGSI_SEMANTIC_CLIPVERTEX:
+ c->output_clipvertex_index = loc;
+ break;
+ case TGSI_SEMANTIC_COLOR:
+ c->output_color_index = loc;
+ break;
+ case TGSI_SEMANTIC_PSIZE:
+ c->output_point_size_index = loc;
+ break;
+ }
+
+ }
+}
+
+static void
+ntq_setup_uniforms(struct vc4_compile *c)
+{
+ foreach_list_typed(nir_variable, var, node, &c->s->uniforms) {
+ unsigned array_len = MAX2(glsl_get_length(var->type), 1);
+ unsigned array_elem_size = 4 * sizeof(float);
+
+ declare_uniform_range(c, var->data.driver_location * array_elem_size,
+ array_len * array_elem_size);
+
+ }
+}
+
+/**
+ * Sets up the mapping from nir_register to struct qreg *.
+ *
+ * Each nir_register gets a struct qreg per 32-bit component being stored.
+ */
+static void
+ntq_setup_registers(struct vc4_compile *c, struct exec_list *list)
+{
+ foreach_list_typed(nir_register, nir_reg, node, list) {
+ unsigned array_len = MAX2(nir_reg->num_array_elems, 1);
+ struct qreg *qregs = ralloc_array(c->def_ht, struct qreg,
+ array_len *
+ nir_reg->num_components);
+
+ _mesa_hash_table_insert(c->def_ht, nir_reg, qregs);
+
+ for (int i = 0; i < array_len * nir_reg->num_components; i++)
+ qregs[i] = qir_uniform_ui(c, 0);
+ }
+}
+
+static void
+ntq_emit_load_const(struct vc4_compile *c, nir_load_const_instr *instr)
+{
+ struct qreg *qregs = ralloc_array(c->def_ht, struct qreg,
+ instr->def.num_components);
+ for (int i = 0; i < instr->def.num_components; i++)
+ qregs[i] = qir_uniform_ui(c, instr->value.u[i]);
+
+ _mesa_hash_table_insert(c->def_ht, &instr->def, qregs);
+}
+
+static void
+ntq_emit_intrinsic(struct vc4_compile *c, nir_intrinsic_instr *instr)
+{
+ const nir_intrinsic_info *info = &nir_intrinsic_infos[instr->intrinsic];
+ struct qreg *dest = NULL;
+
+ if (info->has_dest) {
+ dest = ntq_get_dest(c, instr->dest);
+ }
+
+ switch (instr->intrinsic) {
+ case nir_intrinsic_load_uniform:
+ assert(instr->const_index[1] == 1);
+
+ for (int i = 0; i < instr->num_components; i++) {
+ dest[i] = qir_uniform(c, QUNIFORM_UNIFORM,
+ instr->const_index[0] * 4 + i);
+ }
+ break;
+
+ case nir_intrinsic_load_uniform_indirect:
+ assert(instr->const_index[1] == 1);
+
+ for (int i = 0; i < instr->num_components; i++) {
+ dest[i] = indirect_uniform_load(c,
+ ntq_get_src(c, instr->src[0], 0),
+ (instr->const_index[0] *
+ 4 + i) * sizeof(float));
+ }
+
+ break;
+
+ case nir_intrinsic_load_input:
+ assert(instr->const_index[1] == 1);
+
+ for (int i = 0; i < instr->num_components; i++)
+ dest[i] = c->inputs[instr->const_index[0] * 4 + i];
+
+ break;
+
+ case nir_intrinsic_store_output:
+ for (int i = 0; i < instr->num_components; i++) {
+ c->outputs[instr->const_index[0] * 4 + i] =
+ qir_MOV(c, ntq_get_src(c, instr->src[0], i));
+ }
+ c->num_outputs = MAX2(c->num_outputs,
+ instr->const_index[0] * 4 +
+ instr->num_components + 1);
+ break;
+
+ case nir_intrinsic_discard:
+ c->discard = qir_uniform_ui(c, ~0);
+ break;
+
+ case nir_intrinsic_discard_if:
+ if (c->discard.file == QFILE_NULL)
+ c->discard = qir_uniform_ui(c, 0);
+ c->discard = qir_OR(c, c->discard,
+ ntq_get_src(c, instr->src[0], 0));
+ break;
+
+ default:
+ fprintf(stderr, "Unknown intrinsic: ");
+ nir_print_instr(&instr->instr, stderr);
+ fprintf(stderr, "\n");
+ break;
+ }
+}
+
+static void
+ntq_emit_if(struct vc4_compile *c, nir_if *if_stmt)
+{
+ fprintf(stderr, "general IF statements not handled.\n");
+}
+
+static void
+ntq_emit_instr(struct vc4_compile *c, nir_instr *instr)
+{
+ switch (instr->type) {
+ case nir_instr_type_alu:
+ ntq_emit_alu(c, nir_instr_as_alu(instr));
+ break;
+
+ case nir_instr_type_intrinsic:
+ ntq_emit_intrinsic(c, nir_instr_as_intrinsic(instr));
+ break;
+
+ case nir_instr_type_load_const:
+ ntq_emit_load_const(c, nir_instr_as_load_const(instr));
+ break;
+
+ case nir_instr_type_tex:
+ ntq_emit_tex(c, nir_instr_as_tex(instr));
+ break;
+
+ default:
+ fprintf(stderr, "Unknown NIR instr type: ");
+ nir_print_instr(instr, stderr);
+ fprintf(stderr, "\n");
+ abort();
+ }
+}
+
+static void
+ntq_emit_block(struct vc4_compile *c, nir_block *block)
+{
+ nir_foreach_instr(block, instr) {
+ ntq_emit_instr(c, instr);
+ }
+}
+
+static void
+ntq_emit_cf_list(struct vc4_compile *c, struct exec_list *list)
+{
+ foreach_list_typed(nir_cf_node, node, node, list) {
+ switch (node->type) {
+ /* case nir_cf_node_loop: */
+ case nir_cf_node_block:
+ ntq_emit_block(c, nir_cf_node_as_block(node));
+ break;
+
+ case nir_cf_node_if:
+ ntq_emit_if(c, nir_cf_node_as_if(node));
+ break;
+
+ default:
+ assert(0);
+ }
+ }
+}
+
+static void
+ntq_emit_impl(struct vc4_compile *c, nir_function_impl *impl)
+{
+ ntq_setup_registers(c, &impl->registers);
+ ntq_emit_cf_list(c, &impl->body);
+}
+
+static void
+nir_to_qir(struct vc4_compile *c)
+{
+ ntq_setup_inputs(c);
+ ntq_setup_outputs(c);
+ ntq_setup_uniforms(c);
+ ntq_setup_registers(c, &c->s->registers);
+
+ /* Find the main function and emit the body. */
+ nir_foreach_overload(c->s, overload) {
+ assert(strcmp(overload->function->name, "main") == 0);
+ assert(overload->impl);
+ ntq_emit_impl(c, overload->impl);
+ }
+}
+
+static const nir_shader_compiler_options nir_options = {
+ .lower_ffma = true,
+ .lower_flrp = true,
+ .lower_fpow = true,
+ .lower_fsat = true,
+ .lower_fsqrt = true,
+ .lower_negate = true,
+};
+
static struct vc4_compile *
-vc4_shader_tgsi_to_qir(struct vc4_context *vc4, enum qstage stage,
+vc4_shader_ntq(struct vc4_context *vc4, enum qstage stage,
struct vc4_key *key)
{
struct vc4_compile *c = qir_compile_init();
- int ret;
c->stage = stage;
- for (int i = 0; i < 4; i++)
- c->addr[i] = qir_uniform_f(c, 0.0);
-
c->shader_state = &key->shader_state->base;
c->program_id = key->shader_state->program_id;
c->variant_id = key->shader_state->compiled_variant_count++;
tokens = key->shader_state->twoside_tokens;
}
- ret = tgsi_parse_init(&c->parser, tokens);
- assert(ret == TGSI_PARSE_OK);
-
if (vc4_debug & VC4_DEBUG_TGSI) {
fprintf(stderr, "%s prog %d/%d TGSI:\n",
qir_get_stage_name(c->stage),
tgsi_dump(tokens, 0);
}
- while (!tgsi_parse_end_of_tokens(&c->parser)) {
- tgsi_parse_token(&c->parser);
+ c->s = tgsi_to_nir(tokens, &nir_options);
+ nir_opt_global_to_local(c->s);
+ nir_convert_to_ssa(c->s);
- switch (c->parser.FullToken.Token.Type) {
- case TGSI_TOKEN_TYPE_DECLARATION:
- emit_tgsi_declaration(c,
- &c->parser.FullToken.FullDeclaration);
- break;
+ vc4_optimize_nir(c->s);
- case TGSI_TOKEN_TYPE_INSTRUCTION:
- emit_tgsi_instruction(c,
- &c->parser.FullToken.FullInstruction);
- break;
+ nir_remove_dead_variables(c->s);
- case TGSI_TOKEN_TYPE_IMMEDIATE:
- parse_tgsi_immediate(c,
- &c->parser.FullToken.FullImmediate);
- break;
- }
+ nir_convert_from_ssa(c->s);
+
+ if (vc4_debug & VC4_DEBUG_NIR) {
+ fprintf(stderr, "%s prog %d/%d NIR:\n",
+ qir_get_stage_name(c->stage),
+ c->program_id, c->variant_id);
+ nir_print_shader(c->s, stderr);
}
+ nir_to_qir(c);
+
switch (stage) {
case QSTAGE_FRAG:
emit_frag_end(c);
break;
}
- tgsi_parse_free(&c->parser);
if (vc4_debug & VC4_DEBUG_QIR) {
fprintf(stderr, "%s prog %d/%d pre-opt QIR:\n",
qir_get_stage_name(c->stage),
c->num_uniforms);
}
+ ralloc_free(c->s);
+
return c;
}
if (!so)
return NULL;
- const struct tgsi_lowering_config lowering_config = {
- .lower_DST = true,
- .lower_XPD = true,
- .lower_SCS = true,
- .lower_POW = true,
- .lower_LIT = true,
- .lower_EXP = true,
- .lower_LOG = true,
- .lower_DP4 = true,
- .lower_DP3 = true,
- .lower_DPH = true,
- .lower_DP2 = true,
- .lower_DP2A = true,
- };
-
- struct tgsi_shader_info info;
- so->base.tokens = tgsi_transform_lowering(&lowering_config, cso->tokens, &info);
- if (!so->base.tokens)
- so->base.tokens = tgsi_dup_tokens(cso->tokens);
+ so->base.tokens = tgsi_dup_tokens(cso->tokens);
so->program_id = vc4->next_uncompiled_program_id++;
return so;
if (entry)
return entry->data;
- struct vc4_compile *c = vc4_shader_tgsi_to_qir(vc4, stage, key);
+ struct vc4_compile *c = vc4_shader_ntq(vc4, stage, key);
shader = rzalloc(NULL, struct vc4_compiled_shader);
shader->program_id = vc4->next_compiled_program_id++;
shader->ubo_ranges = ralloc_array(shader, struct vc4_ubo_range,
c->num_ubo_ranges);
uint32_t j = 0;
- for (int i = 0; i < c->ubo_ranges_array_size; i++) {
+ for (int i = 0; i < c->num_uniform_ranges; i++) {
struct vc4_compiler_ubo_range *range =
&c->ubo_ranges[i];
if (!range->used)
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