diff options
Diffstat (limited to 'src/gallium/drivers/nv40/nv40_vertprog.c')
| -rw-r--r-- | src/gallium/drivers/nv40/nv40_vertprog.c | 101 |
1 files changed, 98 insertions, 3 deletions
diff --git a/src/gallium/drivers/nv40/nv40_vertprog.c b/src/gallium/drivers/nv40/nv40_vertprog.c index 40ef7174a41..08d3f387e09 100644 --- a/src/gallium/drivers/nv40/nv40_vertprog.c +++ b/src/gallium/drivers/nv40/nv40_vertprog.c @@ -37,6 +37,8 @@ #define neg(s) nv40_sr_neg((s)) #define abs(s) nv40_sr_abs((s)) +#define NV40_VP_INST_DEST_CLIP(n) ((~0 - 6) + (n)) + struct nv40_vpc { struct nv40_vertex_program *vp; @@ -200,6 +202,36 @@ emit_dst(struct nv40_vpc *vpc, uint32_t *hw, int slot, struct nv40_sreg dst) case NV40_VP_INST_DEST_TC(5): vp->or |= (1 << 19); break; case NV40_VP_INST_DEST_TC(6): vp->or |= (1 << 20); break; case NV40_VP_INST_DEST_TC(7): vp->or |= (1 << 21); break; + case NV40_VP_INST_DEST_CLIP(0): + vp->or |= (1 << 6); + vp->clip_ctrl |= NV40TCL_CLIP_PLANE_ENABLE_PLANE0; + dst.index = NV40_VP_INST_DEST_FOGC; + break; + case NV40_VP_INST_DEST_CLIP(1): + vp->or |= (1 << 7); + vp->clip_ctrl |= NV40TCL_CLIP_PLANE_ENABLE_PLANE1; + dst.index = NV40_VP_INST_DEST_FOGC; + break; + case NV40_VP_INST_DEST_CLIP(2): + vp->or |= (1 << 8); + vp->clip_ctrl |= NV40TCL_CLIP_PLANE_ENABLE_PLANE2; + dst.index = NV40_VP_INST_DEST_FOGC; + break; + case NV40_VP_INST_DEST_CLIP(3): + vp->or |= (1 << 9); + vp->clip_ctrl |= NV40TCL_CLIP_PLANE_ENABLE_PLANE3; + dst.index = NV40_VP_INST_DEST_PSZ; + break; + case NV40_VP_INST_DEST_CLIP(4): + vp->or |= (1 << 10); + vp->clip_ctrl |= NV40TCL_CLIP_PLANE_ENABLE_PLANE4; + dst.index = NV40_VP_INST_DEST_PSZ; + break; + case NV40_VP_INST_DEST_CLIP(5): + vp->or |= (1 << 11); + vp->clip_ctrl |= NV40TCL_CLIP_PLANE_ENABLE_PLANE5; + dst.index = NV40_VP_INST_DEST_PSZ; + break; default: break; } @@ -391,6 +423,11 @@ nv40_vertprog_parse_instruction(struct nv40_vpc *vpc, int ai = -1, ci = -1, ii = -1; int i; + struct { + struct nv40_sreg dst; + unsigned m; + } clip; + if (finst->Instruction.Opcode == TGSI_OPCODE_END) return TRUE; @@ -464,6 +501,47 @@ nv40_vertprog_parse_instruction(struct nv40_vpc *vpc, dst = tgsi_dst(vpc, &finst->FullDstRegisters[0]); mask = tgsi_mask(finst->FullDstRegisters[0].DstRegister.WriteMask); + /* If writing to clip distance regs, need to modify instruction to + * change which component is written to. On NV40 the clip regs + * are the unused components (yzw) of FOGC/PSZ. + */ + clip.dst = none; + if (dst.type == NV40SR_OUTPUT && + dst.index >= NV40_VP_INST_DEST_CLIP(0) && + dst.index <= NV40_VP_INST_DEST_CLIP(5)) { + unsigned n = dst.index - NV40_VP_INST_DEST_CLIP(0); + unsigned m[] = + { MASK_Y, MASK_Z, MASK_W, MASK_Y, MASK_Z, MASK_W }; + + /* Some instructions we can get away with swizzling and/or + * changing the writemask. Others, we'll use a temp reg. + */ + switch (finst->Instruction.Opcode) { + case TGSI_OPCODE_DST: + case TGSI_OPCODE_EXP: + case TGSI_OPCODE_LIT: + case TGSI_OPCODE_LOG: + case TGSI_OPCODE_XPD: + clip.dst = dst; + clip.m = m[n]; + dst = temp(vpc); + break; + case TGSI_OPCODE_DP3: + case TGSI_OPCODE_DP4: + case TGSI_OPCODE_DPH: + case TGSI_OPCODE_POW: + case TGSI_OPCODE_RCP: + case TGSI_OPCODE_RSQ: + mask = m[n]; + break; + default: + for (i = 0; i < finst->Instruction.NumSrcRegs; i++) + src[i] = swz(src[i], X, X, X, X); + mask = m[n]; + break; + } + } + switch (finst->Instruction.Opcode) { case TGSI_OPCODE_ABS: arith(vpc, 0, OP_MOV, dst, mask, abs(src[0]), none, none); @@ -561,6 +639,11 @@ nv40_vertprog_parse_instruction(struct nv40_vpc *vpc, return FALSE; } + if (clip.dst.type != NV40SR_NONE) { + arith(vpc, 0, OP_MOV, clip.dst, clip.m, + swz(dst, X, X, X, X), none, none); + } + release_temps(vpc); return TRUE; } @@ -612,6 +695,15 @@ nv40_vertprog_parse_decl_output(struct nv40_vpc *vpc, return FALSE; } break; +#if 0 + case TGSI_SEMANTIC_CLIP: + if (fdec->Semantic.SemanticIndex >= 6) { + NOUVEAU_ERR("bad clip distance index\n"); + return FALSE; + } + hw = NV40_VP_INST_DEST_CLIP(fdec->Semantic.SemanticIndex); + break; +#endif default: NOUVEAU_ERR("bad output semantic\n"); return FALSE; @@ -782,6 +874,7 @@ nv40_vertprog_validate(struct nv40_context *nv40) { struct nouveau_winsys *nvws = nv40->nvws; struct pipe_winsys *ws = nv40->pipe.winsys; + struct nouveau_grobj *curie = nv40->screen->curie; struct nv40_vertex_program *vp; struct pipe_buffer *constbuf; boolean upload_code = FALSE, upload_data = FALSE; @@ -825,12 +918,14 @@ check_gpu_resources: assert(0); } - so = so_new(5, 0); - so_method(so, nv40->screen->curie, NV40TCL_VP_START_FROM_ID, 1); + so = so_new(7, 0); + so_method(so, curie, NV40TCL_VP_START_FROM_ID, 1); so_data (so, vp->exec->start); - so_method(so, nv40->screen->curie, NV40TCL_VP_ATTRIB_EN, 2); + so_method(so, curie, NV40TCL_VP_ATTRIB_EN, 2); so_data (so, vp->ir); so_data (so, vp->or); + so_method(so, curie, NV40TCL_CLIP_PLANE_ENABLE, 1); + so_data (so, vp->clip_ctrl); so_ref(so, &vp->so); upload_code = TRUE; |