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freedreno: add tgsi lowering pass

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Currently lowers the following instructions:

   DST, XPD, SCS, LRP, FRC, POW, LIT, EXP, LOG, DP4,
   DP3, DPH, DP2

translating these into equivalent simpler TGSI instructions.

This probably should be moved to util so other drivers can use
it, but just adding under freedreno for now so that I can clear
out a lot of the lowering code in a3xx compiler before beginning
to add new compiler.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
This commit is contained in:
Rob Clark 2014-01-15 08:08:18 -05:00
parent 7524756199
commit 0f2df4ff90
4 changed files with 1229 additions and 2 deletions
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1
src/gallium/drivers/freedreno/Makefile.sources
View file

@ -1,5 +1,6 @@
C_SOURCES := \
freedreno_util.c \
freedreno_lowering.c \
freedreno_query.c \
freedreno_fence.c \
freedreno_resource.c \

7
src/gallium/drivers/freedreno/a3xx/fd3_program.c
View file

@ -34,6 +34,8 @@
#include "tgsi/tgsi_dump.h"
#include "tgsi/tgsi_parse.h"
#include "freedreno_lowering.h"
#include "fd3_program.h"
#include "fd3_compiler.h"
#include "fd3_emit.h"
@ -87,6 +89,7 @@ create_shader(struct pipe_context *pctx, const struct pipe_shader_state *cso,
enum shader_t type)
{
struct fd3_shader_stateobj *so = CALLOC_STRUCT(fd3_shader_stateobj);
const struct tgsi_token *tokens = fd_transform_lowering(cso->tokens);
int ret;
if (!so)
@ -96,13 +99,13 @@ create_shader(struct pipe_context *pctx, const struct pipe_shader_state *cso,
if (fd_mesa_debug & FD_DBG_DISASM) {
DBG("dump tgsi: type=%d", so->type);
tgsi_dump(cso->tokens, 0);
tgsi_dump(tokens, 0);
}
if ((type == SHADER_FRAGMENT) && (fd_mesa_debug & FD_DBG_FRAGHALF))
so->half_precision = true;
ret = fd3_compile_shader(so, cso->tokens);
ret = fd3_compile_shader(so, tokens);
if (ret) {
debug_error("compile failed!");
goto fail;

1187
src/gallium/drivers/freedreno/freedreno_lowering.c Normal file
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File diff suppressed because it is too large Load diff

36
src/gallium/drivers/freedreno/freedreno_lowering.h Normal file
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@ -0,0 +1,36 @@
/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* Copyright (C) 2014 Rob Clark <robclark@freedesktop.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Rob Clark <robclark@freedesktop.org>
*/
#ifndef FREEDRENO_LOWERING_H_
#define FREEDRENO_LOWERING_H_
#include "pipe/p_shader_tokens.h"
const struct tgsi_token * fd_transform_lowering(const struct tgsi_token *tokens);
#endif /* FREEDRENO_LOWERING_H_ */