KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

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 <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Bryan Cain <bryancain3@gmail.com>
This commit is contained in:
Dave Airlie 2011-08-25 13:38:43 +01:00
parent 62ad6e66a5
commit 5f3de17ef0
1 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/mesa/state_tracker/st_glsl_to_tgsi.cpp
View File

@ -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,