diff options
author | José Fonseca <jfonseca@vmware.com> | 2009-08-14 10:27:32 +0100 |
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committer | José Fonseca <jfonseca@vmware.com> | 2009-08-29 09:21:32 +0100 |
commit | 73af91e938eb27b001404f11195fb06ff9b08903 (patch) | |
tree | 055a4a79134ac662bb8c3874a31787d335c12ca2 /src/gallium/drivers/llvmpipe/lp_fs_llvm.c | |
parent | 95f38dd67c7dfeb3172ef9723c6f8e4c33de0754 (diff) |
llvmpipe: Eliminate non-LLVM fs execution paths.
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_fs_llvm.c')
-rw-r--r-- | src/gallium/drivers/llvmpipe/lp_fs_llvm.c | 360 |
1 files changed, 0 insertions, 360 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_fs_llvm.c b/src/gallium/drivers/llvmpipe/lp_fs_llvm.c deleted file mode 100644 index ef1c8c32c2..0000000000 --- a/src/gallium/drivers/llvmpipe/lp_fs_llvm.c +++ /dev/null @@ -1,360 +0,0 @@ -/************************************************************************** - * - * Copyright 2009 VMware, Inc. - * 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. - * - **************************************************************************/ - -/** - * Execute fragment shader using LLVM code generation. - */ - - -#include "pipe/p_state.h" -#include "pipe/p_defines.h" -#include "util/u_memory.h" -#include "tgsi/tgsi_parse.h" -#include "tgsi/tgsi_exec.h" -#include "tgsi/tgsi_dump.h" -#include "lp_bld_type.h" -#include "lp_bld_tgsi.h" -#include "lp_screen.h" -#include "lp_context.h" -#include "lp_state.h" -#include "lp_fs.h" -#include "lp_quad.h" - - -typedef void -(*lp_shader_fs_func)(void *pos, - void *a0, - void *dadx, - void *dady, - void *consts, - void *outputs, - struct tgsi_sampler **samplers); - - -/** - * Subclass of lp_fragment_shader - */ -struct lp_llvm_fragment_shader -{ - struct lp_fragment_shader base; - - struct llvmpipe_screen *screen; - - LLVMValueRef function; - - lp_shader_fs_func jit_function; - - union tgsi_exec_channel ALIGN16_ATTRIB pos[NUM_CHANNELS]; - union tgsi_exec_channel ALIGN16_ATTRIB a0[PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS]; - union tgsi_exec_channel ALIGN16_ATTRIB dadx[PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS]; - union tgsi_exec_channel ALIGN16_ATTRIB dady[PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS]; - - uint32_t magic; -}; - - -/** cast wrapper */ -static INLINE struct lp_llvm_fragment_shader * -lp_llvm_fragment_shader(const struct lp_fragment_shader *base) -{ - return (struct lp_llvm_fragment_shader *) base; -} - - -static void -shader_generate(struct llvmpipe_screen *screen, - struct lp_llvm_fragment_shader *shader) -{ - const struct tgsi_token *tokens = shader->base.shader.tokens; - union lp_type type; - LLVMTypeRef elem_type; - LLVMTypeRef vec_type; - LLVMTypeRef arg_types[7]; - LLVMTypeRef func_type; - LLVMValueRef pos_ptr; - LLVMValueRef a0_ptr; - LLVMValueRef dadx_ptr; - LLVMValueRef dady_ptr; - LLVMValueRef consts_ptr; - LLVMValueRef outputs_ptr; - LLVMValueRef samplers_ptr; - LLVMBasicBlockRef block; - LLVMBuilderRef builder; - LLVMValueRef pos[NUM_CHANNELS]; - LLVMValueRef outputs[PIPE_MAX_SHADER_OUTPUTS][NUM_CHANNELS]; - char name[32]; - unsigned i, j; - - type.value = 0; - type.floating = TRUE; - type.sign = TRUE; - type.norm = FALSE; - type.width = 32; - type.length = 4; - - elem_type = lp_build_elem_type(type); - vec_type = lp_build_vec_type(type); - - arg_types[0] = LLVMPointerType(vec_type, 0); /* pos */ - arg_types[1] = LLVMPointerType(vec_type, 0); /* a0 */ - arg_types[2] = LLVMPointerType(vec_type, 0); /* dadx */ - arg_types[3] = LLVMPointerType(vec_type, 0); /* dady */ - arg_types[4] = LLVMPointerType(elem_type, 0); /* consts */ - arg_types[5] = LLVMPointerType(vec_type, 0); /* outputs */ - arg_types[6] = LLVMPointerType(LLVMInt8Type(), 0); /* samplers */ - - func_type = LLVMFunctionType(LLVMVoidType(), arg_types, Elements(arg_types), 0); - - shader->function = LLVMAddFunction(screen->module, "shader", func_type); - LLVMSetFunctionCallConv(shader->function, LLVMCCallConv); - - pos_ptr = LLVMGetParam(shader->function, 0); - a0_ptr = LLVMGetParam(shader->function, 1); - dadx_ptr = LLVMGetParam(shader->function, 2); - dady_ptr = LLVMGetParam(shader->function, 3); - consts_ptr = LLVMGetParam(shader->function, 4); - outputs_ptr = LLVMGetParam(shader->function, 5); - samplers_ptr = LLVMGetParam(shader->function, 6); - - LLVMSetValueName(pos_ptr, "pos"); - LLVMSetValueName(a0_ptr, "a0"); - LLVMSetValueName(dadx_ptr, "dadx"); - LLVMSetValueName(dady_ptr, "dady"); - LLVMSetValueName(consts_ptr, "consts"); - LLVMSetValueName(outputs_ptr, "outputs"); - LLVMSetValueName(samplers_ptr, "samplers"); - - block = LLVMAppendBasicBlock(shader->function, "entry"); - builder = LLVMCreateBuilder(); - LLVMPositionBuilderAtEnd(builder, block); - - for(j = 0; j < NUM_CHANNELS; ++j) { - LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), j, 0); - util_snprintf(name, sizeof name, "pos.%c", "xyzw"[j]); - pos[j] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, pos_ptr, &index, 1, ""), name); - } - - memset(outputs, 0, sizeof outputs); - - lp_build_tgsi_soa(builder, tokens, type, - pos, a0_ptr, dadx_ptr, dady_ptr, - consts_ptr, outputs, samplers_ptr); - - for(i = 0; i < PIPE_MAX_SHADER_OUTPUTS; ++i) { - for(j = 0; j < NUM_CHANNELS; ++j) { - if(outputs[i][j]) { - LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i*NUM_CHANNELS + j, 0); - util_snprintf(name, sizeof name, "output%u.%c", i, "xyzw"[j]); - LLVMBuildStore(builder, outputs[i][j], LLVMBuildGEP(builder, outputs_ptr, &index, 1, name)); - } - } - } - - LLVMBuildRetVoid(builder);; - - LLVMDisposeBuilder(builder); -} - - - -static void -fs_llvm_prepare( const struct lp_fragment_shader *base, - struct tgsi_exec_machine *machine, - struct tgsi_sampler **samplers ) -{ - /* - * Bind tokens/shader to the interpreter's machine state. - * Avoid redundant binding. - */ - if (machine->Tokens != base->shader.tokens) { - tgsi_exec_machine_bind_shader( machine, - base->shader.tokens, - PIPE_MAX_SAMPLERS, - samplers ); - } -} - - - -static void -setup_pos_vector(struct lp_llvm_fragment_shader *shader, - const struct tgsi_interp_coef *coef, - float x, float y) -{ - uint chan; - - /* do X */ - shader->pos[0].f[0] = x; - shader->pos[0].f[1] = x + 1; - shader->pos[0].f[2] = x; - shader->pos[0].f[3] = x + 1; - - /* do Y */ - shader->pos[1].f[0] = y; - shader->pos[1].f[1] = y; - shader->pos[1].f[2] = y + 1; - shader->pos[1].f[3] = y + 1; - - /* do Z and W for all fragments in the quad */ - for (chan = 2; chan < 4; chan++) { - const float dadx = coef->dadx[chan]; - const float dady = coef->dady[chan]; - const float a0 = coef->a0[chan] + dadx * x + dady * y; - shader->pos[chan].f[0] = a0; - shader->pos[chan].f[1] = a0 + dadx; - shader->pos[chan].f[2] = a0 + dady; - shader->pos[chan].f[3] = a0 + dadx + dady; - } -} - - -static void -setup_coef_vector(struct lp_llvm_fragment_shader *shader, - const struct tgsi_interp_coef *coef) -{ - unsigned attrib, chan, i; - - for (attrib = 0; attrib < PIPE_MAX_SHADER_INPUTS; ++attrib) { - for (chan = 0; chan < NUM_CHANNELS; ++chan) { - for( i = 0; i < QUAD_SIZE; ++i ) { - shader->a0[attrib][chan].f[i] = coef[attrib].a0[chan]; - shader->dadx[attrib][chan].f[i] = coef[attrib].dadx[chan]; - shader->dady[attrib][chan].f[i] = coef[attrib].dady[chan]; - } - } - } -} - - -/* TODO: codegenerate the whole run function, skip this wrapper. - * TODO: break dependency on tgsi_exec_machine struct - * TODO: push Position calculation into the generated shader - * TODO: process >1 quad at a time - */ -static unsigned -fs_llvm_run( const struct lp_fragment_shader *base, - struct tgsi_exec_machine *machine, - struct quad_header *quad ) -{ - struct lp_llvm_fragment_shader *shader = lp_llvm_fragment_shader(base); - unsigned mask; - - /* Compute X, Y, Z, W vals for this quad */ - setup_pos_vector(shader, - quad->posCoef, - (float)quad->input.x0, (float)quad->input.y0); - - setup_coef_vector(shader, - quad->coef); - - /* init kill mask */ - tgsi_set_kill_mask(machine, 0x0); - tgsi_set_exec_mask(machine, 1, 1, 1, 1); - - memset(machine->Outputs, 0, sizeof machine->Outputs); - - shader->jit_function( shader->pos, - shader->a0, shader->dadx, shader->dady, - machine->Consts, - machine->Outputs, - machine->Samplers); - - /* FIXME */ - mask = ~0; - - return mask; -} - - -static void -fs_llvm_delete( struct lp_fragment_shader *base ) -{ - struct lp_llvm_fragment_shader *shader = lp_llvm_fragment_shader(base); - struct llvmpipe_screen *screen = shader->screen; - - if(shader->function) { - if(shader->jit_function) - LLVMFreeMachineCodeForFunction(screen->engine, shader->function); - LLVMDeleteFunction(shader->function); - } - - FREE((void *) shader->base.shader.tokens); - FREE(shader); -} - - -struct lp_fragment_shader * -llvmpipe_create_fs_llvm(struct llvmpipe_context *llvmpipe, - const struct pipe_shader_state *templ) -{ - struct llvmpipe_screen *screen = llvmpipe_screen(llvmpipe->pipe.screen); - struct lp_llvm_fragment_shader *shader; - LLVMValueRef fetch_texel; - - shader = CALLOC_STRUCT(lp_llvm_fragment_shader); - if (!shader) - return NULL; - - /* we need to keep a local copy of the tokens */ - shader->base.shader.tokens = tgsi_dup_tokens(templ->tokens); - shader->base.prepare = fs_llvm_prepare; - shader->base.run = fs_llvm_run; - shader->base.delete = fs_llvm_delete; - - shader->screen = screen; - - tgsi_dump(templ->tokens, 0); - - shader_generate(screen, shader); - - LLVMRunFunctionPassManager(screen->pass, shader->function); - -#if 1 - LLVMDumpValue(shader->function); - debug_printf("\n"); -#endif - - if(LLVMVerifyFunction(shader->function, LLVMPrintMessageAction)) { - LLVMDumpValue(shader->function); - abort(); - } - - fetch_texel = LLVMGetNamedFunction(screen->module, "fetch_texel"); - if(fetch_texel) { - static boolean first_time = TRUE; - if(first_time) { - LLVMAddGlobalMapping(screen->engine, fetch_texel, lp_build_tgsi_fetch_texel_soa); - first_time = FALSE; - } - } - - shader->jit_function = (lp_shader_fs_func)LLVMGetPointerToGlobal(screen->engine, shader->function); - - return &shader->base; -} - |