From 74964ff04d89be430944dd8106bf5c97a9933f85 Mon Sep 17 00:00:00 2001 From: Zack Rusin Date: Tue, 10 Jun 2008 16:59:44 -0400 Subject: glsl: implement variable array indexes --- src/mesa/shader/slang/slang_emit.c | 16 +++++++++++----- src/mesa/shader/slang/slang_ir.h | 1 + 2 files changed, 12 insertions(+), 5 deletions(-) (limited to 'src/mesa/shader/slang') diff --git a/src/mesa/shader/slang/slang_emit.c b/src/mesa/shader/slang/slang_emit.c index ff63e05dd2..93256f8647 100644 --- a/src/mesa/shader/slang/slang_emit.c +++ b/src/mesa/shader/slang/slang_emit.c @@ -223,6 +223,7 @@ storage_to_src_reg(struct prog_src_register *src, const slang_ir_storage *st) assert(st->Size <= 4); src->File = st->File; src->Index = st->Index; + src->RelAddr = st->RelAddr; if (st->Swizzle != SWIZZLE_NOOP) src->Swizzle = st->Swizzle; else @@ -1488,11 +1489,16 @@ emit_array_element(slang_emit_info *emitInfo, slang_ir_node *n) n->Store->Index = arrayAddr + index; } else { - /* Variable index - PROBLEM */ - const GLint arrayAddr = n->Children[0]->Store->Index; - const GLint index = 0; - _mesa_problem(NULL, "variable array indexes not supported yet!"); - n->Store->Index = arrayAddr + index; + /* Variable index*/ + struct prog_instruction *inst; + inst = new_instruction(emitInfo, OPCODE_ARL); + storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); + storage_to_src_reg(&inst->SrcReg[0], n->Children[1]->Store); + inst->DstReg.File = PROGRAM_ADDRESS; + inst->Comment = _mesa_strdup("ARL ADDR"); + n->Store->RelAddr = GL_TRUE; + n->Store->Index = inst->DstReg.Index;/*index of the array*/ + inst->DstReg.Index = 0; /*addr index is always 0*/ } return NULL; /* no instruction */ } diff --git a/src/mesa/shader/slang/slang_ir.h b/src/mesa/shader/slang/slang_ir.h index c7c0ddbf9a..ba0735d64d 100644 --- a/src/mesa/shader/slang/slang_ir.h +++ b/src/mesa/shader/slang/slang_ir.h @@ -146,6 +146,7 @@ struct _slang_ir_storage GLint Size; /**< number of floats */ GLuint Swizzle; GLint RefCount; /**< Used during IR tree delete */ + GLboolean RelAddr; }; typedef struct _slang_ir_storage slang_ir_storage; -- cgit v1.2.3