From b7da4c3dc199ee382bb9924ac86a3485deccc62d Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Wed, 22 Oct 2008 11:08:45 -0600 Subject: [PATCH] gallium: PPC vertex shader support Works, but dead code lingering, debug code present, etc. --- src/gallium/auxiliary/draw/Makefile | 1 + src/gallium/auxiliary/draw/draw_vs.c | 5 +- src/gallium/auxiliary/draw/draw_vs.h | 4 + src/gallium/auxiliary/draw/draw_vs_ppc.c | 270 +++++++++++++++++++++++++++++++ 4 files changed, 279 insertions(+), 1 deletion(-) create mode 100644 src/gallium/auxiliary/draw/draw_vs_ppc.c diff --git a/src/gallium/auxiliary/draw/Makefile b/src/gallium/auxiliary/draw/Makefile index f2e36a8..bdbf5a0 100644 --- a/src/gallium/auxiliary/draw/Makefile +++ b/src/gallium/auxiliary/draw/Makefile @@ -40,6 +40,7 @@ C_SOURCES = \ draw_vs_aos_machine.c \ draw_vs_exec.c \ draw_vs_llvm.c \ + draw_vs_ppc.c \ draw_vs_sse.c diff --git a/src/gallium/auxiliary/draw/draw_vs.c b/src/gallium/auxiliary/draw/draw_vs.c index 34adbd4..7f30530 100644 --- a/src/gallium/auxiliary/draw/draw_vs.c +++ b/src/gallium/auxiliary/draw/draw_vs.c @@ -85,7 +85,10 @@ draw_create_vertex_shader(struct draw_context *draw, if (!vs) { vs = draw_create_vs_sse( draw, shader ); if (!vs) { - vs = draw_create_vs_exec( draw, shader ); + vs = draw_create_vs_ppc( draw, shader ); + if (!vs) { + vs = draw_create_vs_exec( draw, shader ); + } } } diff --git a/src/gallium/auxiliary/draw/draw_vs.h b/src/gallium/auxiliary/draw/draw_vs.h index 68c24ab..89ae158 100644 --- a/src/gallium/auxiliary/draw/draw_vs.h +++ b/src/gallium/auxiliary/draw/draw_vs.h @@ -158,6 +158,10 @@ draw_create_vs_sse(struct draw_context *draw, const struct pipe_shader_state *templ); struct draw_vertex_shader * +draw_create_vs_ppc(struct draw_context *draw, + const struct pipe_shader_state *templ); + +struct draw_vertex_shader * draw_create_vs_llvm(struct draw_context *draw, const struct pipe_shader_state *templ); diff --git a/src/gallium/auxiliary/draw/draw_vs_ppc.c b/src/gallium/auxiliary/draw/draw_vs_ppc.c new file mode 100644 index 0000000..a096ad4 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_vs_ppc.c @@ -0,0 +1,270 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * 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, sub license, 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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: + * Keith Whitwell + * Brian Paul + */ + +#include "util/u_math.h" +#include "util/u_memory.h" +#include "pipe/p_config.h" + +#include "draw_vs.h" + +#if defined(PIPE_ARCH_PPC) + +#include "pipe/p_shader_tokens.h" + +#include "draw_private.h" +#include "draw_context.h" + +#include "rtasm/rtasm_cpu.h" +#include "rtasm/rtasm_ppc.h" +#include "tgsi/tgsi_ppc.h" +#include "tgsi/tgsi_parse.h" + + + +typedef void (PIPE_CDECL *codegen_function) (float (*inputs)[4][4], + float (*outputs)[4][4], + float (*temps)[4][4], + float (*immeds)[4][4], + float (*consts)[4]); + +#if 0 + const struct tgsi_exec_vector *input, + struct tgsi_exec_vector *output, + float (*constant)[4], /* 3 */ + struct tgsi_exec_vector *temporary, /* 4 */ + float (*immediates)[4], /* 5 */ + const float (*aos_input)[4], /* 6 */ + uint num_inputs, /* 7 */ + uint input_stride, /* 8 */ + float (*aos_output)[4], /* 9 */ + uint num_outputs, /* 10 */ + uint output_stride ); /* 11 */ +#endif + +struct draw_ppc_vertex_shader { + struct draw_vertex_shader base; + struct ppc_function ppc_program; + + codegen_function func; + + struct tgsi_exec_machine *machine; +}; + + +static void +vs_ppc_prepare( struct draw_vertex_shader *base, + struct draw_context *draw ) +{ +} + + + +/* Simplified vertex shader interface for the pt paths. Given the + * complexity of code-generating all the above operations together, + * it's time to try doing all the other stuff separately. + */ +static void +vs_ppc_run_linear( struct draw_vertex_shader *base, + const float (*input)[4], + float (*output)[4], + const float (*constants)[4], + unsigned count, + unsigned input_stride, + unsigned output_stride ) +{ + struct draw_ppc_vertex_shader *shader = (struct draw_ppc_vertex_shader *)base; + struct tgsi_exec_machine *machine = shader->machine; + unsigned int i; + +#define MAX_VERTICES 4 + + /* loop over verts */ + for (i = 0; i < count; i += MAX_VERTICES) { + const uint max_vertices = MIN2(MAX_VERTICES, count - i); + float inputs_soa[PIPE_MAX_SHADER_INPUTS][4][4] ALIGN16_ATTRIB; + float outputs_soa[PIPE_MAX_SHADER_OUTPUTS][4][4] ALIGN16_ATTRIB; + float temps_soa[TGSI_EXEC_NUM_TEMPS][4][4] ALIGN16_ATTRIB; + uint attr; + + /* convert (up to) four input verts to SoA format */ + for (attr = 0; attr < base->info.num_inputs; attr++) { + const float *vIn = (const float *) input; + uint vert; + for (vert = 0; vert < max_vertices; vert++) { +#if 0 + if (attr==0) + printf("Input v%d a%d: %f %f %f %f\n", + vert, attr, vIn[0], vIn[1], vIn[2], vIn[3]); +#endif + inputs_soa[attr][0][vert] = vIn[attr * 4 + 0]; + inputs_soa[attr][1][vert] = vIn[attr * 4 + 1]; + inputs_soa[attr][2][vert] = vIn[attr * 4 + 2]; + inputs_soa[attr][3][vert] = vIn[attr * 4 + 3]; + vIn += input_stride / 4; + } + } + + /* run compiled shader + */ +#if 0 + shader->func(machine->Inputs, + machine->Outputs, + (float (*)[4])constants, + machine->Temps, + (float (*)[4])shader->base.immediates, + input, + base->info.num_inputs, + input_stride, + output, + base->info.num_outputs, + output_stride ); +#else + shader->func(inputs_soa, outputs_soa, temps_soa, + (float (*)[4][4]) shader->base.immediates, + (float (*)[4]) constants); + + /*output[0][0] = input[0][0] * 0.5;*/ +#endif + + /* convert (up to) four output verts from SoA back to AoS format */ + for (attr = 0; attr < base->info.num_outputs; attr++) { + float *vOut = (float *) output; + uint vert; + for (vert = 0; vert < max_vertices; vert++) { + vOut[attr * 4 + 0] = outputs_soa[attr][0][vert]; + vOut[attr * 4 + 1] = outputs_soa[attr][1][vert]; + vOut[attr * 4 + 2] = outputs_soa[attr][2][vert]; + vOut[attr * 4 + 3] = outputs_soa[attr][3][vert]; +#if 0 + if (attr==0) + printf("Output v%d a%d: %f %f %f %f\n", + vert, attr, vOut[0], vOut[1], vOut[2], vOut[3]); +#endif + vOut += output_stride / 4; + } + } + + /* advance to next group of four input/output verts */ + input = (const float (*)[4])((const char *)input + input_stride * max_vertices); + output = (float (*)[4])((char *)output + output_stride * max_vertices); + } +} + + + + +static void +vs_ppc_delete( struct draw_vertex_shader *base ) +{ + struct draw_ppc_vertex_shader *shader = (struct draw_ppc_vertex_shader *)base; + + ppc_release_func( &shader->ppc_program ); + + align_free( (void *) shader->base.immediates ); + + FREE( (void*) shader->base.state.tokens ); + FREE( shader ); +} + + +struct draw_vertex_shader * +draw_create_vs_ppc(struct draw_context *draw, + const struct pipe_shader_state *templ) +{ + struct draw_ppc_vertex_shader *vs; + + vs = CALLOC_STRUCT( draw_ppc_vertex_shader ); + if (vs == NULL) + return NULL; + + /* we make a private copy of the tokens */ + vs->base.state.tokens = tgsi_dup_tokens(templ->tokens); + if (!vs->base.state.tokens) + goto fail; + + tgsi_scan_shader(templ->tokens, &vs->base.info); + + vs->base.draw = draw; +#if 0 + if (1) + vs->base.create_varient = draw_vs_varient_aos_ppc; + else +#endif + vs->base.create_varient = draw_vs_varient_generic; + vs->base.prepare = vs_ppc_prepare; + vs->base.run_linear = vs_ppc_run_linear; + vs->base.delete = vs_ppc_delete; + + vs->base.immediates = align_malloc(TGSI_EXEC_NUM_IMMEDIATES * 4 * 4 * + sizeof(float), 16); + + vs->machine = &draw->vs.machine; + + ppc_init_func( &vs->ppc_program, 1000 ); /* XXX fix limit */ + + if (!tgsi_emit_ppc( (struct tgsi_token *) vs->base.state.tokens, + &vs->ppc_program, + (float (*)[4])vs->base.immediates, + TRUE )) + goto fail; + + vs->func = (codegen_function) ppc_get_func( &vs->ppc_program ); + if (!vs->func) { + goto fail; + } + + return &vs->base; + +fail: + debug_error("tgsi_emit_ppc() failed, falling back to interpreter\n"); + + ppc_release_func( &vs->ppc_program ); + + FREE(vs); + return NULL; +} + + + +#else /* PIPE_ARCH_PPC */ + + +struct draw_vertex_shader * +draw_create_vs_ppc( struct draw_context *draw, + const struct pipe_shader_state *templ ) +{ + return (void *) 0; +} + + +#endif /* PIPE_ARCH_PPC */ -- 2.7.4