From b29d8d27292c2ad956d3f0a307603f00ee01af28 Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Fri, 15 Feb 2008 13:37:01 +0000 Subject: draw: subclass vertex shaders according to execution method Create new files for shaders compiled/executed with llvm, sse, exec respectively --- src/gallium/auxiliary/draw/draw_vs_llvm.c | 237 ++++++++++++++++++++++++++++++ 1 file changed, 237 insertions(+) create mode 100644 src/gallium/auxiliary/draw/draw_vs_llvm.c (limited to 'src/gallium/auxiliary/draw/draw_vs_llvm.c') diff --git a/src/gallium/auxiliary/draw/draw_vs_llvm.c b/src/gallium/auxiliary/draw/draw_vs_llvm.c new file mode 100644 index 00000000000..44022b6e077 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_vs_llvm.c @@ -0,0 +1,237 @@ +/************************************************************************** + * + * Copyright 2007 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: + * Zack Rusin + * Keith Whitwell + * Brian Paul + */ + +#include "pipe/p_util.h" +#include "pipe/p_shader_tokens.h" +#include "draw_private.h" +#include "draw_context.h" +#include "draw_vs.h" + +#ifdef MESA_LLVM + +#include "llvm/gallivm.h" + +struct draw_llvm_vertex_shader { + struct draw_vertex_shader base; + struct gallivm_prog *llvm_prog; +}; + + +static INLINE unsigned +compute_clipmask(const float *clip, /*const*/ float plane[][4], unsigned nr) +{ + unsigned mask = 0; + unsigned i; + + /* Do the hardwired planes first: + */ + if (-clip[0] + clip[3] < 0) mask |= CLIP_RIGHT_BIT; + if ( clip[0] + clip[3] < 0) mask |= CLIP_LEFT_BIT; + if (-clip[1] + clip[3] < 0) mask |= CLIP_TOP_BIT; + if ( clip[1] + clip[3] < 0) mask |= CLIP_BOTTOM_BIT; + if (-clip[2] + clip[3] < 0) mask |= CLIP_FAR_BIT; + if ( clip[2] + clip[3] < 0) mask |= CLIP_NEAR_BIT; + + /* Followed by any remaining ones: + */ + for (i = 6; i < nr; i++) { + if (dot4(clip, plane[i]) < 0) + mask |= (1<machine; + unsigned int j; + + ALIGN16_DECL(struct tgsi_exec_vector, inputs, PIPE_ATTRIB_MAX); + ALIGN16_DECL(struct tgsi_exec_vector, outputs, PIPE_ATTRIB_MAX); + const float *scale = draw->viewport.scale; + const float *trans = draw->viewport.translate; + + + assert(count <= 4); + assert(draw->vertex_shader->state->output_semantic_name[0] + == TGSI_SEMANTIC_POSITION); + + /* Consts does not require 16 byte alignment. */ + machine->Consts = (float (*)[4]) draw->user.constants; + + machine->Inputs = ALIGN16_ASSIGN(inputs); + machine->Outputs = ALIGN16_ASSIGN(outputs); + + draw->vertex_fetch.fetch_func( draw, machine, elts, count ); + + /* run shader */ + gallivm_cpu_vs_exec(shader->llvm_prog, + machine->Inputs, + machine->Outputs, + machine->Consts, + machine->Temps); + + /* store machine results */ + for (j = 0; j < count; j++) { + unsigned slot; + float x, y, z, w; + + x = vOut[j]->clip[0] = machine->Outputs[0].xyzw[0].f[j]; + y = vOut[j]->clip[1] = machine->Outputs[0].xyzw[1].f[j]; + z = vOut[j]->clip[2] = machine->Outputs[0].xyzw[2].f[j]; + w = vOut[j]->clip[3] = machine->Outputs[0].xyzw[3].f[j]; + + vOut[j]->clipmask = compute_clipmask(vOut[j]->clip, draw->plane, draw->nr_planes); + vOut[j]->edgeflag = 1; + + /* divide by w */ + w = 1.0f / w; + x *= w; + y *= w; + z *= w; + + /* Viewport mapping */ + vOut[j]->data[0][0] = x * scale[0] + trans[0]; + vOut[j]->data[0][1] = y * scale[1] + trans[1]; + vOut[j]->data[0][2] = z * scale[2] + trans[2]; + vOut[j]->data[0][3] = w; + + /* Remaining attributes are packed into sequential post-transform + * vertex attrib slots. + */ + for (slot = 1; slot < draw->num_vs_outputs; slot++) { + vOut[j]->data[slot][0] = machine->Outputs[slot].xyzw[0].f[j]; + vOut[j]->data[slot][1] = machine->Outputs[slot].xyzw[1].f[j]; + vOut[j]->data[slot][2] = machine->Outputs[slot].xyzw[2].f[j]; + vOut[j]->data[slot][3] = machine->Outputs[slot].xyzw[3].f[j]; + } + } /* loop over vertices */ +} + +static void +vs_llvm_delete( struct draw_vertex_shader *base ) +{ + struct draw_llvm_vertex_shader *shader = + (struct draw_llvm_vertex_shader *)base; + + /* Do something to free compiled shader: + */ + + FREE( shader ); +} + + + + +struct draw_vertex_shader * +draw_create_vs_llvm(struct draw_context *draw, + const struct pipe_shader_state *templ) +{ + struct draw_llvm_vertex_shader *vs; + + vs = CALLOC_STRUCT( draw_llvm_vertex_shader ); + if (vs == NULL) + return NULL; + + vs->base.state = templ; + vs->base.prepare = vs_llvm_prepare; + vs->base.run = vs_llvm_run; + vs->base.delete = vs_llvm_delete; + + { + struct gallivm_ir *ir = gallivm_ir_new(GALLIVM_VS); + gallivm_ir_set_layout(ir, GALLIVM_SOA); + gallivm_ir_set_components(ir, 4); + gallivm_ir_fill_from_tgsi(ir, vs->base.state->tokens); + vs->llvm_prog = gallivm_ir_compile(ir); + gallivm_ir_delete(ir); + } + + draw->engine = gallivm_global_cpu_engine(); + + /* XXX: Why are there two versions of this? Shouldn't creating the + * engine be a separate operation to compiling a shader? + */ + if (!draw->engine) { + draw->engine = gallivm_cpu_engine_create(vs->llvm_prog); + } + else { + gallivm_cpu_jit_compile(draw->engine, vs->llvm_prog); + } + + return &vs->base; +} + + + + + +#else + +struct draw_vertex_shader * +draw_create_vs_llvm(struct draw_context *draw, + const struct pipe_shader_state *shader) +{ + return NULL; +} + +#endif -- cgit v1.2.3