diff options
Diffstat (limited to 'src/gallium/drivers/svga/svga_tgsi_decl_sm30.c')
-rw-r--r-- | src/gallium/drivers/svga/svga_tgsi_decl_sm30.c | 385 |
1 files changed, 385 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_tgsi_decl_sm30.c b/src/gallium/drivers/svga/svga_tgsi_decl_sm30.c new file mode 100644 index 0000000..d1c7336 --- /dev/null +++ b/src/gallium/drivers/svga/svga_tgsi_decl_sm30.c @@ -0,0 +1,385 @@ +/********************************************************** + * Copyright 2008-2009 VMware, Inc. 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, 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 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. + * + **********************************************************/ + + +#include "pipe/p_shader_tokens.h" +#include "tgsi/tgsi_parse.h" +#include "util/u_memory.h" + +#include "svga_tgsi_emit.h" +#include "svga_context.h" + +static boolean translate_vs_ps_semantic( struct tgsi_declaration_semantic semantic, + unsigned *usage, + unsigned *idx ) +{ + switch (semantic.Name) { + case TGSI_SEMANTIC_POSITION: + *idx = semantic.Index; + *usage = SVGA3D_DECLUSAGE_POSITION; + break; + case TGSI_SEMANTIC_COLOR: + + *idx = semantic.Index; + *usage = SVGA3D_DECLUSAGE_COLOR; + break; + case TGSI_SEMANTIC_BCOLOR: + *idx = semantic.Index + 2; /* sharing with COLOR */ + *usage = SVGA3D_DECLUSAGE_COLOR; + break; + case TGSI_SEMANTIC_FOG: + *idx = 0; + assert(semantic.Index == 0); + *usage = SVGA3D_DECLUSAGE_TEXCOORD; + break; + case TGSI_SEMANTIC_PSIZE: + *idx = semantic.Index; + *usage = SVGA3D_DECLUSAGE_PSIZE; + break; + case TGSI_SEMANTIC_GENERIC: + *idx = semantic.Index + 1; /* texcoord[0] is reserved for fog */ + *usage = SVGA3D_DECLUSAGE_TEXCOORD; + break; + case TGSI_SEMANTIC_NORMAL: + *idx = semantic.Index; + *usage = SVGA3D_DECLUSAGE_NORMAL; + break; + default: + assert(0); + *usage = SVGA3D_DECLUSAGE_TEXCOORD; + *idx = 0; + return FALSE; + } + + return TRUE; +} + + +static boolean emit_decl( struct svga_shader_emitter *emit, + SVGA3dShaderDestToken reg, + unsigned usage, + unsigned index ) +{ + SVGA3DOpDclArgs dcl; + SVGA3dShaderInstToken opcode; + + opcode = inst_token( SVGA3DOP_DCL ); + dcl.values[0] = 0; + dcl.values[1] = 0; + + dcl.dst = reg; + dcl.usage = usage; + dcl.index = index; + dcl.values[0] |= 1<<31; + + return (emit_instruction(emit, opcode) && + svga_shader_emit_dwords( emit, dcl.values, Elements(dcl.values))); +} + +static boolean emit_vface_decl( struct svga_shader_emitter *emit ) +{ + if (!emit->emitted_vface) { + SVGA3dShaderDestToken reg = + dst_register( SVGA3DREG_MISCTYPE, + SVGA3DMISCREG_FACE ); + + if (!emit_decl( emit, reg, 0, 0 )) + return FALSE; + + emit->emitted_vface = TRUE; + } + return TRUE; +} + +static boolean ps30_input( struct svga_shader_emitter *emit, + struct tgsi_declaration_semantic semantic, + unsigned idx ) +{ + unsigned usage, index; + SVGA3dShaderDestToken reg; + + if (semantic.Name == TGSI_SEMANTIC_POSITION) { + emit->input_map[idx] = src_register( SVGA3DREG_MISCTYPE, + SVGA3DMISCREG_POSITION ); + + emit->input_map[idx].base.swizzle = TRANSLATE_SWIZZLE( TGSI_SWIZZLE_X, + TGSI_SWIZZLE_Y, + TGSI_SWIZZLE_Y, + TGSI_SWIZZLE_Y ); + + reg = writemask( dst(emit->input_map[idx]), + TGSI_WRITEMASK_XY ); + + return emit_decl( emit, reg, 0, 0 ); + } + else if (emit->key.fkey.light_twoside && + (semantic.Name == TGSI_SEMANTIC_COLOR)) { + + if (!translate_vs_ps_semantic( semantic, &usage, &index )) + return FALSE; + + emit->internal_color_idx[emit->internal_color_count] = idx; + emit->input_map[idx] = src_register( SVGA3DREG_INPUT, emit->ps30_input_count ); + emit->ps30_input_count++; + emit->internal_color_count++; + + reg = dst( emit->input_map[idx] ); + + if (!emit_decl( emit, reg, usage, index )) + return FALSE; + + semantic.Name = TGSI_SEMANTIC_BCOLOR; + if (!translate_vs_ps_semantic( semantic, &usage, &index )) + return FALSE; + + reg = dst_register( SVGA3DREG_INPUT, emit->ps30_input_count++ ); + + if (!emit_decl( emit, reg, usage, index )) + return FALSE; + + if (!emit_vface_decl( emit )) + return FALSE; + + return TRUE; + } + else if (semantic.Name == TGSI_SEMANTIC_FACE) { + if (!emit_vface_decl( emit )) + return FALSE; + emit->emit_frontface = TRUE; + emit->internal_frontface_idx = idx; + return TRUE; + } + else { + + if (!translate_vs_ps_semantic( semantic, &usage, &index )) + return FALSE; + + emit->input_map[idx] = src_register( SVGA3DREG_INPUT, emit->ps30_input_count++ ); + reg = dst( emit->input_map[idx] ); + + return emit_decl( emit, reg, usage, index ); + } + +} + + +/* PS output registers are the same as 2.0 + */ +static boolean ps30_output( struct svga_shader_emitter *emit, + struct tgsi_declaration_semantic semantic, + unsigned idx ) +{ + SVGA3dShaderDestToken reg; + + switch (semantic.Name) { + case TGSI_SEMANTIC_COLOR: + emit->output_map[idx] = dst_register( SVGA3DREG_COLOROUT, + semantic.Index ); + break; + case TGSI_SEMANTIC_POSITION: + emit->output_map[idx] = dst_register( SVGA3DREG_TEMP, + emit->nr_hw_temp++ ); + emit->temp_pos = emit->output_map[idx]; + emit->true_pos = dst_register( SVGA3DREG_DEPTHOUT, + semantic.Index ); + break; + default: + assert(0); + reg = dst_register( SVGA3DREG_COLOROUT, 0 ); + break; + } + + return TRUE; +} + + +/* We still make up the input semantics the same as in 2.0 + */ +static boolean vs30_input( struct svga_shader_emitter *emit, + struct tgsi_declaration_semantic semantic, + unsigned idx ) +{ + SVGA3DOpDclArgs dcl; + SVGA3dShaderInstToken opcode; + unsigned usage, index; + + opcode = inst_token( SVGA3DOP_DCL ); + dcl.values[0] = 0; + dcl.values[1] = 0; + + if (emit->key.vkey.zero_stride_vertex_elements & (1 << idx)) { + unsigned i; + unsigned offset = 0; + unsigned start_idx = emit->info.file_max[TGSI_FILE_CONSTANT] + 1; + /* adjust for prescale constants */ + start_idx += emit->key.vkey.need_prescale ? 2 : 0; + /* compute the offset from the start of zero stride constants */ + for (i = 0; i < PIPE_MAX_ATTRIBS && i < idx; ++i) { + if (emit->key.vkey.zero_stride_vertex_elements & (1<<i)) + ++offset; + } + emit->input_map[idx] = src_register( SVGA3DREG_CONST, + start_idx + offset ); + } else { + emit->input_map[idx] = src_register( SVGA3DREG_INPUT, idx ); + dcl.dst = dst_register( SVGA3DREG_INPUT, idx ); + + assert(dcl.dst.reserved0); + + svga_generate_vdecl_semantics( idx, &usage, &index ); + + dcl.usage = usage; + dcl.index = index; + dcl.values[0] |= 1<<31; + + return (emit_instruction(emit, opcode) && + svga_shader_emit_dwords( emit, dcl.values, Elements(dcl.values))); + } + return TRUE; +} + +/* VS3.0 outputs have proper declarations and semantic info for + * matching against PS inputs. + */ +static boolean vs30_output( struct svga_shader_emitter *emit, + struct tgsi_declaration_semantic semantic, + unsigned idx ) +{ + SVGA3DOpDclArgs dcl; + SVGA3dShaderInstToken opcode; + unsigned usage, index; + + opcode = inst_token( SVGA3DOP_DCL ); + dcl.values[0] = 0; + dcl.values[1] = 0; + + if (!translate_vs_ps_semantic( semantic, &usage, &index )) + return FALSE; + + dcl.dst = dst_register( SVGA3DREG_OUTPUT, idx ); + dcl.usage = usage; + dcl.index = index; + dcl.values[0] |= 1<<31; + + if (semantic.Name == TGSI_SEMANTIC_POSITION) { + assert(idx == 0); + emit->output_map[idx] = dst_register( SVGA3DREG_TEMP, + emit->nr_hw_temp++ ); + emit->temp_pos = emit->output_map[idx]; + emit->true_pos = dcl.dst; + } + else if (semantic.Name == TGSI_SEMANTIC_PSIZE) { + emit->output_map[idx] = dst_register( SVGA3DREG_TEMP, + emit->nr_hw_temp++ ); + emit->temp_psiz = emit->output_map[idx]; + + /* This has the effect of not declaring psiz (below) and not + * emitting the final MOV to true_psiz in the postamble. + */ + if (!emit->key.vkey.allow_psiz) + return TRUE; + + emit->true_psiz = dcl.dst; + } + else { + emit->output_map[idx] = dcl.dst; + } + + + return (emit_instruction(emit, opcode) && + svga_shader_emit_dwords( emit, dcl.values, Elements(dcl.values))); +} + +static boolean ps30_sampler( struct svga_shader_emitter *emit, + struct tgsi_declaration_semantic semantic, + unsigned idx ) +{ + SVGA3DOpDclArgs dcl; + SVGA3dShaderInstToken opcode; + + opcode = inst_token( SVGA3DOP_DCL ); + dcl.values[0] = 0; + dcl.values[1] = 0; + + dcl.dst = dst_register( SVGA3DREG_SAMPLER, idx ); + dcl.type = svga_tgsi_sampler_type( emit, idx ); + dcl.values[0] |= 1<<31; + + return (emit_instruction(emit, opcode) && + svga_shader_emit_dwords( emit, dcl.values, Elements(dcl.values))); +} + + +boolean svga_translate_decl_sm30( struct svga_shader_emitter *emit, + const struct tgsi_full_declaration *decl ) +{ + unsigned first = decl->Range.First; + unsigned last = decl->Range.Last; + unsigned semantic = 0; + unsigned semantic_idx = 0; + unsigned idx; + + if (decl->Declaration.Semantic) { + semantic = decl->Semantic.Name; + semantic_idx = decl->Semantic.Index; + } + + for( idx = first; idx <= last; idx++ ) { + boolean ok; + + switch (decl->Declaration.File) { + case TGSI_FILE_SAMPLER: + assert (emit->unit == PIPE_SHADER_FRAGMENT); + ok = ps30_sampler( emit, decl->Semantic, idx ); + break; + + case TGSI_FILE_INPUT: + if (emit->unit == PIPE_SHADER_VERTEX) + ok = vs30_input( emit, decl->Semantic, idx ); + else + ok = ps30_input( emit, decl->Semantic, idx ); + break; + + case TGSI_FILE_OUTPUT: + if (emit->unit == PIPE_SHADER_VERTEX) + ok = vs30_output( emit, decl->Semantic, idx ); + else + ok = ps30_output( emit, decl->Semantic, idx ); + break; + + default: + /* don't need to declare other vars */ + ok = TRUE; + } + + if (!ok) + return FALSE; + } + + return TRUE; +} + + + |