diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_vs.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_vs.c | 182 |
1 files changed, 179 insertions, 3 deletions
diff --git a/src/gallium/drivers/r300/r300_vs.c b/src/gallium/drivers/r300/r300_vs.c index 74ef416dc14..49bff3e9316 100644 --- a/src/gallium/drivers/r300/r300_vs.c +++ b/src/gallium/drivers/r300/r300_vs.c @@ -1,5 +1,6 @@ /* * Copyright 2009 Corbin Simpson <[email protected]> + * Copyright 2009 Marek Olšák <[email protected]> * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -23,13 +24,181 @@ #include "r300_vs.h" #include "r300_context.h" +#include "r300_screen.h" #include "r300_tgsi_to_rc.h" +#include "r300_reg.h" #include "tgsi/tgsi_dump.h" #include "tgsi/tgsi_parse.h" #include "radeon_compiler.h" +/* Convert info about VS output semantics into r300_shader_semantics. */ +static void r300_shader_read_vs_outputs( + struct tgsi_shader_info* info, + struct r300_shader_semantics* vs_outputs) +{ + int i; + unsigned index; + + r300_shader_semantics_reset(vs_outputs); + + for (i = 0; i < info->num_outputs; i++) { + index = info->output_semantic_index[i]; + + switch (info->output_semantic_name[i]) { + case TGSI_SEMANTIC_POSITION: + assert(index == 0); + vs_outputs->pos = i; + break; + + case TGSI_SEMANTIC_PSIZE: + assert(index == 0); + vs_outputs->psize = i; + break; + + case TGSI_SEMANTIC_COLOR: + assert(index <= ATTR_COLOR_COUNT); + vs_outputs->color[index] = i; + break; + + case TGSI_SEMANTIC_BCOLOR: + assert(index <= ATTR_COLOR_COUNT); + vs_outputs->bcolor[index] = i; + break; + + case TGSI_SEMANTIC_GENERIC: + assert(index <= ATTR_GENERIC_COUNT); + vs_outputs->generic[index] = i; + break; + + case TGSI_SEMANTIC_FOG: + assert(index == 0); + vs_outputs->fog = i; + break; + + default: + assert(0); + } + } +} + +static void r300_shader_vap_output_fmt( + struct r300_shader_semantics* vs_outputs, + uint* hwfmt) +{ + int i, gen_count; + + /* Do the actual vertex_info setup. + * + * vertex_info has four uints of hardware-specific data in it. + * vinfo.hwfmt[0] is R300_VAP_VTX_STATE_CNTL + * vinfo.hwfmt[1] is R300_VAP_VSM_VTX_ASSM + * vinfo.hwfmt[2] is R300_VAP_OUTPUT_VTX_FMT_0 + * vinfo.hwfmt[3] is R300_VAP_OUTPUT_VTX_FMT_1 */ + + hwfmt[0] = 0x5555; /* XXX this is classic Mesa bonghits */ + + /* Position. */ + if (vs_outputs->pos != ATTR_UNUSED) { + hwfmt[1] |= R300_INPUT_CNTL_POS; + hwfmt[2] |= R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT; + } else { + assert(0); + } + + /* Point size. */ + if (vs_outputs->psize != ATTR_UNUSED) { + hwfmt[2] |= R300_VAP_OUTPUT_VTX_FMT_0__PT_SIZE_PRESENT; + } + + /* Colors. */ + for (i = 0; i < ATTR_COLOR_COUNT; i++) { + if (vs_outputs->color[i] != ATTR_UNUSED) { + hwfmt[1] |= R300_INPUT_CNTL_COLOR; + hwfmt[2] |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT << i; + } + } + + /* XXX Back-face colors. */ + + /* Texture coordinates. */ + gen_count = 0; + for (i = 0; i < ATTR_GENERIC_COUNT; i++) { + if (vs_outputs->generic[i] != ATTR_UNUSED) { + hwfmt[1] |= (R300_INPUT_CNTL_TC0 << gen_count); + hwfmt[3] |= (4 << (3 * gen_count)); + gen_count++; + } + } + + /* Fog coordinates. */ + if (vs_outputs->fog != ATTR_UNUSED) { + hwfmt[1] |= (R300_INPUT_CNTL_TC0 << gen_count); + hwfmt[3] |= (4 << (3 * gen_count)); + gen_count++; + } + + /* XXX magic */ + assert(gen_count <= 8); +} + +/* Set VS output stream locations for SWTCL. */ +static void r300_stream_locations_swtcl( + struct r300_shader_semantics* vs_outputs, + int* output_stream_loc) +{ + int i, tabi = 0, gen_count; + + /* XXX Check whether the numbers (0, 1, 2+i, etc.) are correct. + * These should go to VAP_PROG_STREAM_CNTL/DST_VEC_LOC. */ + + /* Position. */ + output_stream_loc[tabi++] = 0; + + /* Point size. */ + if (vs_outputs->psize != ATTR_UNUSED) { + output_stream_loc[tabi++] = 1; + } + + /* Colors. */ + for (i = 0; i < ATTR_COLOR_COUNT; i++) { + if (vs_outputs->color[i] != ATTR_UNUSED) { + output_stream_loc[tabi++] = 2 + i; + } + } + + /* Back-face colors. */ + for (i = 0; i < ATTR_COLOR_COUNT; i++) { + if (vs_outputs->bcolor[i] != ATTR_UNUSED) { + output_stream_loc[tabi++] = 4 + i; + } + } + + /* Texture coordinates. */ + gen_count = 0; + for (i = 0; i < ATTR_GENERIC_COUNT; i++) { + if (vs_outputs->bcolor[i] != ATTR_UNUSED) { + assert(tabi < 16); + output_stream_loc[tabi++] = 6 + gen_count; + gen_count++; + } + } + + /* Fog coordinates. */ + if (vs_outputs->fog != ATTR_UNUSED) { + assert(tabi < 16); + output_stream_loc[tabi++] = 6 + gen_count; + gen_count++; + } + + /* XXX magic */ + assert(gen_count <= 8); + + for (; tabi < 16;) { + output_stream_loc[tabi++] = -1; + } +} static void set_vertex_inputs_outputs(struct r300_vertex_program_compiler * c) { @@ -99,20 +268,27 @@ static void set_vertex_inputs_outputs(struct r300_vertex_program_compiler * c) default: debug_printf("r300: vs: Bad semantic declaration %d\n", decl->Semantic.SemanticName); - break; + assert(0); } } tgsi_parse_free(&parser); } - void r300_translate_vertex_shader(struct r300_context* r300, struct r300_vertex_shader* vs) { struct r300_vertex_program_compiler compiler; struct tgsi_to_rc ttr; + /* Initialize. */ + r300_shader_read_vs_outputs(&vs->info, &vs->outputs); + r300_shader_vap_output_fmt(&vs->outputs, vs->hwfmt); + + if (!r300_screen(r300->context.screen)->caps->has_tcl) { + r300_stream_locations_swtcl(&vs->outputs, vs->output_stream_loc_swtcl); + } + /* Setup the compiler */ rc_init(&compiler.Base); @@ -137,7 +313,7 @@ void r300_translate_vertex_shader(struct r300_context* r300, /* Invoke the compiler */ r3xx_compile_vertex_program(&compiler); if (compiler.Base.Error) { - /* Todo: Fail gracefully */ + /* XXX Fail gracefully */ fprintf(stderr, "r300 VP: Compiler error\n"); abort(); } |