From 5f3de17ef0f8b6280a6bf331ea6686a260f0d0d4 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 25 Aug 2011 13:38:43 +0100 Subject: [PATCH] glsl_to_tgsi: add TXF support. (v2) This adds texelFetch support to translate from GLSL to TGSI TXF opcode. I've tested this works with an r600g and softpipe backend. v2: drop comments, fix title, Signed-off-by: Dave Airlie Reviewed-by: Brian Paul Reviewed-by: Bryan Cain --- src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp index 85e4c662fea..9cac30995af 100644 --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -2476,8 +2476,10 @@ glsl_to_tgsi_visitor::visit(ir_texture *ir) ir->lod_info.lod->accept(this); lod_info = this->result; break; - case ir_txf: /* TODO: use TGSI_OPCODE_TXF here */ - assert(!"GLSL 1.30 features unsupported"); + case ir_txf: + opcode = TGSI_OPCODE_TXF; + ir->lod_info.lod->accept(this); + lod_info = this->result; break; } @@ -2541,7 +2543,8 @@ glsl_to_tgsi_visitor::visit(ir_texture *ir) coord_dst.writemask = WRITEMASK_XYZW; } - if (opcode == TGSI_OPCODE_TXL || opcode == TGSI_OPCODE_TXB) { + if (opcode == TGSI_OPCODE_TXL || opcode == TGSI_OPCODE_TXB || + opcode == TGSI_OPCODE_TXF) { /* TGSI stores LOD or LOD bias in the last channel of the coords. */ coord_dst.writemask = WRITEMASK_W; emit(ir, TGSI_OPCODE_MOV, coord_dst, lod_info); @@ -4285,6 +4288,7 @@ compile_tgsi_instruction(struct st_translate *t, case TGSI_OPCODE_TXL: case TGSI_OPCODE_TXP: case TGSI_OPCODE_TXQ: + case TGSI_OPCODE_TXF: src[num_src++] = t->samplers[inst->sampler]; ureg_tex_insn(ureg, inst->op, -- 2.30.2