From e1d1c396265ce3b363e99422b46275275723ee21 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Mon, 13 Oct 2014 14:38:10 +0100 Subject: [PATCH] vc4: Add support for the TXL opcode. There's a bit at the bottom of cube map stride (which has some formatting bugs in the docs) which flips the bias coordinate to being an absolute LOD. --- src/gallium/drivers/vc4/vc4_program.c | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) diff --git a/src/gallium/drivers/vc4/vc4_program.c b/src/gallium/drivers/vc4/vc4_program.c index 1bbdba5..3056c67 100644 --- a/src/gallium/drivers/vc4/vc4_program.c +++ b/src/gallium/drivers/vc4/vc4_program.c @@ -528,6 +528,7 @@ tgsi_to_qir_tex(struct vc4_compile *c, 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) { @@ -561,6 +562,13 @@ tgsi_to_qir_tex(struct vc4_compile *c, } if (tgsi_inst->Texture.Texture == TGSI_TEXTURE_CUBE || + tgsi_inst->Texture.Texture == TGSI_TEXTURE_SHADOWCUBE || + is_txl) { + texture_u[2] = add_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) { struct qreg ma = qir_FMAXABS(c, qir_FMAXABS(c, s, t), r); struct qreg rcp_ma = qir_RCP(c, ma); @@ -568,8 +576,6 @@ tgsi_to_qir_tex(struct vc4_compile *c, t = qir_FMUL(c, t, rcp_ma); r = qir_FMUL(c, r, rcp_ma); - texture_u[2] = add_uniform(c, QUNIFORM_TEXTURE_CONFIG_P2, unit); - qir_TEX_R(c, r, texture_u[next_texture_u++]); } else if (c->key->tex[unit].wrap_s == PIPE_TEX_WRAP_CLAMP_TO_BORDER || c->key->tex[unit].wrap_s == PIPE_TEX_WRAP_CLAMP || @@ -591,7 +597,8 @@ tgsi_to_qir_tex(struct vc4_compile *c, qir_TEX_T(c, t, texture_u[next_texture_u++]); - if (tgsi_inst->Instruction.Opcode == TGSI_OPCODE_TXB) + 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++]); qir_TEX_S(c, s, texture_u[next_texture_u++]); @@ -1175,6 +1182,7 @@ emit_tgsi_instruction(struct vc4_compile *c, 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; @@ -2163,15 +2171,17 @@ write_texture_p1(struct vc4_context *vc4, static void write_texture_p2(struct vc4_context *vc4, struct vc4_texture_stateobj *texstate, - uint32_t unit) + uint32_t data) { + uint32_t unit = data & 0xffff; struct pipe_sampler_view *texture = texstate->textures[unit]; struct vc4_resource *rsc = vc4_resource(texture->texture); cl_u32(&vc4->uniforms, VC4_SET_FIELD(VC4_TEX_P2_PTYPE_CUBE_MAP_STRIDE, VC4_TEX_P2_PTYPE) | - VC4_SET_FIELD(rsc->cube_map_stride >> 12, VC4_TEX_P2_CMST)); + VC4_SET_FIELD(rsc->cube_map_stride >> 12, VC4_TEX_P2_CMST) | + VC4_SET_FIELD((data >> 16) & 1, VC4_TEX_P2_BSLOD)); } -- 2.7.4