diff options
author | Eric Anholt <eric@anholt.net> | 2010-07-02 14:49:29 -0700 |
---|---|---|
committer | Eric Anholt <eric@anholt.net> | 2010-07-02 14:50:02 -0700 |
commit | de75dfac4ea2cad64dc91f6ac16fe205b5015af6 (patch) | |
tree | 26fb9b69ec0d27f0e054d67dcb76ebbca08335a5 | |
parent | cab95c228b12f0fc568164d57475c561c8d6053e (diff) |
ir_to_mesa: Add support for projected non-shadow/bias/lod texturing.
Fixes:
glsl-fs-texture2dproj
glsl-fs-texture2dproj-2
-rw-r--r-- | src/mesa/shader/ir_to_mesa.cpp | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/src/mesa/shader/ir_to_mesa.cpp b/src/mesa/shader/ir_to_mesa.cpp index 59268e6d176..96f3cd7e4d9 100644 --- a/src/mesa/shader/ir_to_mesa.cpp +++ b/src/mesa/shader/ir_to_mesa.cpp @@ -1287,13 +1287,18 @@ ir_to_mesa_visitor::visit(ir_call *ir) void ir_to_mesa_visitor::visit(ir_texture *ir) { - ir_to_mesa_src_reg result_src, coord; + ir_to_mesa_src_reg result_src, coord, projector; ir_to_mesa_dst_reg result_dst, lod_info; ir_to_mesa_instruction *inst = NULL; ir->coordinate->accept(this); coord = this->result; + if (ir->projector) { + ir->projector->accept(this); + projector = this->result; + } + /* Storage for our result. Ideally for an assignment we'd be using * the actual storage for the result here, instead. */ @@ -1302,7 +1307,16 @@ ir_to_mesa_visitor::visit(ir_texture *ir) switch (ir->op) { case ir_tex: - inst = ir_to_mesa_emit_op1(ir, OPCODE_TEX, result_dst, coord); + if (ir->projector) { + /* Compute new coord as vec4(texcoord.xyz, projector) */ + ir_to_mesa_emit_op1(ir, OPCODE_MOV, result_dst, coord); + result_dst.writemask = WRITEMASK_W; + ir_to_mesa_emit_op1(ir, OPCODE_MOV, result_dst, projector); + result_dst.writemask = WRITEMASK_XYZW; + inst = ir_to_mesa_emit_op1(ir, OPCODE_TXP, result_dst, result_src); + } else { + inst = ir_to_mesa_emit_op1(ir, OPCODE_TEX, result_dst, coord); + } break; case ir_txb: /* Mesa IR stores bias in the last channel of the coords. */ @@ -1312,6 +1326,7 @@ ir_to_mesa_visitor::visit(ir_texture *ir) ir_to_mesa_emit_op1(ir, OPCODE_MOV, lod_info, this->result); inst = ir_to_mesa_emit_op1(ir, OPCODE_TXB, result_dst, coord); + assert(!ir->projector); /* FINISHME */ break; case ir_txl: /* Mesa IR stores lod in the last channel of the coords. */ @@ -1321,6 +1336,7 @@ ir_to_mesa_visitor::visit(ir_texture *ir) ir_to_mesa_emit_op1(ir, OPCODE_MOV, lod_info, this->result); inst = ir_to_mesa_emit_op1(ir, OPCODE_TXL, result_dst, coord); + assert(!ir->projector); /* FINISHME */ break; case ir_txd: case ir_txf: @@ -1354,7 +1370,6 @@ ir_to_mesa_visitor::visit(ir_texture *ir) assert(!"FINISHME: other texture targets"); } - assert(!ir->projector); /* FINISHME */ assert(!ir->shadow_comparitor); /* FINISHME */ this->result = result_src; |