From 30be2cc6c7c3378ee17885b5bf41d7ae53bf6fe0 Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Thu, 25 Aug 2011 17:13:37 -0700 Subject: [PATCH] i965/fs: Implement texelFetch() on Ironlake and Sandybridge. Signed-off-by: Kenneth Graunke Reviewed-by: Eric Anholt --- src/mesa/drivers/dri/i965/brw_defines.h | 2 ++ src/mesa/drivers/dri/i965/brw_fs.cpp | 1 + src/mesa/drivers/dri/i965/brw_fs.h | 1 + src/mesa/drivers/dri/i965/brw_fs_emit.cpp | 4 ++++ src/mesa/drivers/dri/i965/brw_fs_visitor.cpp | 11 +++++++++-- src/mesa/program/ir_to_mesa.cpp | 5 ++--- 6 files changed, 19 insertions(+), 5 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_defines.h b/src/mesa/drivers/dri/i965/brw_defines.h index 5f34939..055aa4a 100644 --- a/src/mesa/drivers/dri/i965/brw_defines.h +++ b/src/mesa/drivers/dri/i965/brw_defines.h @@ -633,6 +633,7 @@ enum opcode { FS_OPCODE_TEX, FS_OPCODE_TXB, FS_OPCODE_TXD, + FS_OPCODE_TXF, FS_OPCODE_TXL, FS_OPCODE_TXS, FS_OPCODE_DISCARD, @@ -782,6 +783,7 @@ enum opcode { #define GEN5_SAMPLER_MESSAGE_SAMPLE_DERIVS 4 #define GEN5_SAMPLER_MESSAGE_SAMPLE_BIAS_COMPARE 5 #define GEN5_SAMPLER_MESSAGE_SAMPLE_LOD_COMPARE 6 +#define GEN5_SAMPLER_MESSAGE_SAMPLE_LD 7 #define GEN5_SAMPLER_MESSAGE_SAMPLE_RESINFO 10 /* for GEN5 only */ diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index 7f5194b..9a89f88 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -156,6 +156,7 @@ fs_visitor::implied_mrf_writes(fs_inst *inst) case FS_OPCODE_TEX: case FS_OPCODE_TXB: case FS_OPCODE_TXD: + case FS_OPCODE_TXF: case FS_OPCODE_TXL: case FS_OPCODE_TXS: return 1; diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h index f3d8fbf..0bd518f 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.h +++ b/src/mesa/drivers/dri/i965/brw_fs.h @@ -291,6 +291,7 @@ public: return (opcode == FS_OPCODE_TEX || opcode == FS_OPCODE_TXB || opcode == FS_OPCODE_TXD || + opcode == FS_OPCODE_TXF || opcode == FS_OPCODE_TXL || opcode == FS_OPCODE_TXS); } diff --git a/src/mesa/drivers/dri/i965/brw_fs_emit.cpp b/src/mesa/drivers/dri/i965/brw_fs_emit.cpp index ba0d2a2..906c158 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_emit.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_emit.cpp @@ -249,6 +249,9 @@ fs_visitor::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src) /* There is no sample_d_c message; comparisons are done manually */ msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_DERIVS; break; + case FS_OPCODE_TXF: + msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LD; + break; default: assert(!"not reached"); break; @@ -782,6 +785,7 @@ fs_visitor::generate_code() case FS_OPCODE_TEX: case FS_OPCODE_TXB: case FS_OPCODE_TXD: + case FS_OPCODE_TXF: case FS_OPCODE_TXL: case FS_OPCODE_TXS: generate_tex(inst, dst, src[0]); diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp index ba7ee2f..09aaca9 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp @@ -785,7 +785,8 @@ fs_visitor::emit_texture_gen5(ir_texture *ir, fs_reg dst, fs_reg coordinate, for (int i = 0; i < vector_elements; i++) { fs_inst *inst = emit(BRW_OPCODE_MOV, - fs_reg(MRF, base_mrf + mlen + i * reg_width), + fs_reg(MRF, base_mrf + mlen + i * reg_width, + coordinate.type), coordinate); if (i < 3 && c->key.gl_clamp_mask[i] & (1 << sampler)) inst->saturate = true; @@ -861,7 +862,13 @@ fs_visitor::emit_texture_gen5(ir_texture *ir, fs_reg dst, fs_reg coordinate, inst = emit(FS_OPCODE_TXS, dst); break; case ir_txf: - assert(!"GLSL 1.30 features unsupported"); + mlen = header_present + 4 * reg_width; + + ir->lod_info.lod->accept(this); + emit(BRW_OPCODE_MOV, + fs_reg(MRF, base_mrf + mlen - reg_width, BRW_REGISTER_TYPE_UD), + this->result); + inst = emit(FS_OPCODE_TXF, dst); break; } inst->base_mrf = base_mrf; diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp index 69a84de..5e565e4 100644 --- a/src/mesa/program/ir_to_mesa.cpp +++ b/src/mesa/program/ir_to_mesa.cpp @@ -2139,6 +2139,8 @@ ir_to_mesa_visitor::visit(ir_texture *ir) ir->lod_info.bias->accept(this); lod_info = this->result; break; + case ir_txf: + /* Pretend to be TXL so the sampler, coordinate, lod are available */ case ir_txl: opcode = OPCODE_TXL; ir->lod_info.lod->accept(this); @@ -2151,9 +2153,6 @@ ir_to_mesa_visitor::visit(ir_texture *ir) ir->lod_info.grad.dPdy->accept(this); dy = this->result; break; - case ir_txf: - assert(!"GLSL 1.30 features unsupported"); - break; } const glsl_type *sampler_type = ir->sampler->type; -- 2.7.4