/* * Copyright 2008 Corbin Simpson * * 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 * on 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 * THE AUTHOR(S) AND/OR THEIR 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. */ #include "r300_state_derived.h" #include "r300_fs.h" #include "r300_state_inlines.h" #include "r300_vs.h" /* r300_state_derived: Various bits of state which are dependent upon * currently bound CSO data. */ struct r300_shader_key { struct r300_vertex_shader* vs; struct r300_fragment_shader* fs; }; struct r300_shader_derived_value { struct r300_vertex_format* vformat; struct r300_rs_block* rs_block; }; unsigned r300_shader_key_hash(void* key) { struct r300_shader_key* shader_key = (struct r300_shader_key*)key; unsigned vs = (unsigned)shader_key->vs; unsigned fs = (unsigned)shader_key->fs; return (vs << 16) | (fs & 0xffff); } int r300_shader_key_compare(void* key1, void* key2) { struct r300_shader_key* shader_key1 = (struct r300_shader_key*)key1; struct r300_shader_key* shader_key2 = (struct r300_shader_key*)key2; return (shader_key1->vs == shader_key2->vs) && (shader_key1->fs == shader_key2->fs); } /* Set up the vs_tab and routes. */ static void r300_vs_tab_routes(struct r300_context* r300, struct r300_vertex_format* vformat) { struct r300_screen* r300screen = r300_screen(r300->context.screen); struct vertex_info* vinfo = &vformat->vinfo; int* tab = vformat->vs_tab; boolean pos = FALSE, psize = FALSE, fog = FALSE; int i, texs = 0, cols = 0; struct tgsi_shader_info* info; if (r300screen->caps->has_tcl) { /* Use vertex shader to determine required routes. */ info = &r300->vs->info; } else { /* Use fragment shader to determine required routes. */ info = &r300->fs->info; } assert(info->num_inputs <= 16); if (!r300screen->caps->has_tcl || !r300->rs_state->enable_vte) { for (i = 0; i < info->num_inputs; i++) { switch (r300->vs->code.inputs[i]) { case TGSI_SEMANTIC_POSITION: pos = TRUE; tab[i] = 0; break; case TGSI_SEMANTIC_COLOR: tab[i] = 2 + cols; cols++; break; case TGSI_SEMANTIC_PSIZE: assert(psize == FALSE); psize = TRUE; tab[i] = 15; break; case TGSI_SEMANTIC_FOG: assert(fog == FALSE); fog = TRUE; /* Fall through */ case TGSI_SEMANTIC_GENERIC: tab[i] = 6 + texs; texs++; break; default: debug_printf("r300: Unknown vertex input %d\n", info->input_semantic_name[i]); break; } } } else { /* Just copy vert attribs over as-is. */ for (i = 0; i < info->num_inputs; i++) { tab[i] = i; } for (i = 0; i < info->num_outputs; i++) { switch (info->output_semantic_name[i]) { case TGSI_SEMANTIC_POSITION: pos = TRUE; break; case TGSI_SEMANTIC_COLOR: cols++; break; case TGSI_SEMANTIC_PSIZE: psize = TRUE; break; case TGSI_SEMANTIC_FOG: fog = TRUE; /* Fall through */ case TGSI_SEMANTIC_GENERIC: texs++; break; default: debug_printf("r300: Unknown vertex output %d\n", info->output_semantic_name[i]); break; } } } /* XXX magic */ assert(texs <= 8); /* 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 */ vinfo->hwfmt[0] = 0x5555; /* XXX this is classic Mesa bonghits */ /* We need to add vertex position attribute only for SW TCL case, * for HW TCL case it could be generated by vertex shader */ if (!pos && !r300screen->caps->has_tcl) { debug_printf("r300: Forcing vertex position attribute emit...\n"); /* Make room for the position attribute * at the beginning of the tab. */ for (i = 15; i > 0; i--) { tab[i] = tab[i-1]; } tab[0] = 0; } draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, draw_find_vs_output(r300->draw, TGSI_SEMANTIC_POSITION, 0)); vinfo->hwfmt[1] |= R300_INPUT_CNTL_POS; vinfo->hwfmt[2] |= R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT; if (psize) { draw_emit_vertex_attr(vinfo, EMIT_1F_PSIZE, INTERP_POS, draw_find_vs_output(r300->draw, TGSI_SEMANTIC_PSIZE, 0)); vinfo->hwfmt[2] |= R300_VAP_OUTPUT_VTX_FMT_0__PT_SIZE_PRESENT; } for (i = 0; i < cols; i++) { draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_LINEAR, draw_find_vs_output(r300->draw, TGSI_SEMANTIC_COLOR, i)); vinfo->hwfmt[1] |= R300_INPUT_CNTL_COLOR; vinfo->hwfmt[2] |= (R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT << i); } /* Init i right here, increment it if fog is enabled. * This gets around a double-increment problem. */ i = 0; if (fog) { i++; draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, draw_find_vs_output(r300->draw, TGSI_SEMANTIC_FOG, 0)); vinfo->hwfmt[1] |= (R300_INPUT_CNTL_TC0 << i); vinfo->hwfmt[3] |= (4 << (3 * i)); } for (; i < texs; i++) { draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, draw_find_vs_output(r300->draw, TGSI_SEMANTIC_GENERIC, i)); vinfo->hwfmt[1] |= (R300_INPUT_CNTL_TC0 << i); vinfo->hwfmt[3] |= (4 << (3 * i)); } /* Handle the case where the vertex shader will be generating some of * the attribs based on its inputs. */ if (r300screen->caps->has_tcl && info->num_inputs < info->num_outputs) { vinfo->num_attribs = info->num_inputs; } draw_compute_vertex_size(vinfo); } /* Update the PSC tables. */ static void r300_vertex_psc(struct r300_context* r300, struct r300_vertex_format* vformat) { struct r300_screen* r300screen = r300_screen(r300->context.screen); struct vertex_info* vinfo = &vformat->vinfo; int* tab = vformat->vs_tab; uint32_t temp; unsigned i, attrib_count; /* Vertex shaders have no semantics on their inputs, * so PSC should just route stuff based on their info, * and not on attrib information. */ if (r300screen->caps->has_tcl) { attrib_count = r300->vs->info.num_inputs; DBG(r300, DBG_DRAW, "r300: routing %d attribs in psc for vs\n", attrib_count); } else { attrib_count = vinfo->num_attribs; DBG(r300, DBG_DRAW, "r300: attrib count: %d\n", attrib_count); for (i = 0; i < attrib_count; i++) { DBG(r300, DBG_DRAW, "r300: attrib: offset %d, interp %d, size %d," " tab %d\n", vinfo->attrib[i].src_index, vinfo->attrib[i].interp_mode, vinfo->attrib[i].emit, tab[i]); } } for (i = 0; i < attrib_count; i++) { /* Make sure we have a proper destination for our attribute */ assert(tab[i] != -1); /* Add the attribute to the PSC table. */ temp = translate_vertex_data_type(vinfo->attrib[i].emit) | tab[i] << R300_DST_VEC_LOC_SHIFT; if (i & 1) { vformat->vap_prog_stream_cntl[i >> 1] &= 0x0000ffff; vformat->vap_prog_stream_cntl[i >> 1] |= temp << 16; vformat->vap_prog_stream_cntl_ext[i >> 1] |= (R300_VAP_SWIZZLE_XYZW << 16); } else { vformat->vap_prog_stream_cntl[i >> 1] &= 0xffff0000; vformat->vap_prog_stream_cntl[i >> 1] |= temp << 0; vformat->vap_prog_stream_cntl_ext[i >> 1] |= (R300_VAP_SWIZZLE_XYZW << 0); } } /* Set the last vector in the PSC. */ if (i) { i -= 1; } vformat->vap_prog_stream_cntl[i >> 1] |= (R300_LAST_VEC << (i & 1 ? 16 : 0)); } /* Set up the mappings from GB to US, for RS block. */ static void r300_update_fs_tab(struct r300_context* r300, struct r300_vertex_format* vformat) { struct tgsi_shader_info* info = &r300->fs->info; int i, cols = 0, texs = 0, cols_emitted = 0; int* tab = vformat->fs_tab; for (i = 0; i < 16; i++) { tab[i] = -1; } assert(info->num_inputs <= 16); for (i = 0; i < info->num_inputs; i++) { switch (info->input_semantic_name[i]) { case TGSI_SEMANTIC_COLOR: tab[i] = INTERP_LINEAR; cols++; break; case TGSI_SEMANTIC_POSITION: case TGSI_SEMANTIC_PSIZE: debug_printf("r300: Implementation error: Can't use " "pos attribs in fragshader yet!\n"); /* Pass through for now */ case TGSI_SEMANTIC_FOG: case TGSI_SEMANTIC_GENERIC: tab[i] = INTERP_PERSPECTIVE; break; default: debug_printf("r300: Unknown vertex input %d\n", info->input_semantic_name[i]); break; } } /* Now that we know where everything is... */ DBG(r300, DBG_DRAW, "r300: fp input count: %d\n", info->num_inputs); for (i = 0; i < info->num_inputs; i++) { switch (tab[i]) { case INTERP_LINEAR: DBG(r300, DBG_DRAW, "r300: attrib: " "stack offset %d, color, tab %d\n", i, cols_emitted); tab[i] = cols_emitted; cols_emitted++; break; case INTERP_PERSPECTIVE: DBG(r300, DBG_DRAW, "r300: attrib: " "stack offset %d, texcoord, tab %d\n", i, cols + texs); tab[i] = cols + texs; texs++; break; case -1: debug_printf("r300: Implementation error: Bad fp interp!\n"); default: break; } } } /* Set up the RS block. This is the part of the chipset that actually does * the rasterization of vertices into fragments. This is also the part of the * chipset that locks up if any part of it is even slightly wrong. */ static void r300_update_rs_block(struct r300_context* r300, struct r300_rs_block* rs) { struct tgsi_shader_info* info = &r300->fs->info; int col_count = 0, fp_offset = 0, i, tex_count = 0; int rs_tex_comp = 0; if (r300_screen(r300->context.screen)->caps->is_r500) { for (i = 0; i < info->num_inputs; i++) { switch (info->input_semantic_name[i]) { case TGSI_SEMANTIC_COLOR: rs->ip[col_count] |= R500_RS_COL_PTR(col_count) | R500_RS_COL_FMT(R300_RS_COL_FMT_RGBA); col_count++; break; case TGSI_SEMANTIC_GENERIC: rs->ip[tex_count] |= R500_RS_SEL_S(rs_tex_comp) | R500_RS_SEL_T(rs_tex_comp + 1) | R500_RS_SEL_R(rs_tex_comp + 2) | R500_RS_SEL_Q(rs_tex_comp + 3); tex_count++; rs_tex_comp += 4; break; default: break; } } /* Rasterize at least one color, or bad things happen. */ if ((col_count == 0) && (tex_count == 0)) { rs->ip[0] |= R500_RS_COL_FMT(R300_RS_COL_FMT_0001); col_count++; } for (i = 0; i < tex_count; i++) { rs->inst[i] |= R500_RS_INST_TEX_ID(i) | R500_RS_INST_TEX_CN_WRITE | R500_RS_INST_TEX_ADDR(fp_offset); fp_offset++; } for (i = 0; i < col_count; i++) { rs->inst[i] |= R500_RS_INST_COL_ID(i) | R500_RS_INST_COL_CN_WRITE | R500_RS_INST_COL_ADDR(fp_offset); fp_offset++; } } else { for (i = 0; i < info->num_inputs; i++) { switch (info->input_semantic_name[i]) { case TGSI_SEMANTIC_COLOR: rs->ip[col_count] |= R300_RS_COL_PTR(col_count) | R300_RS_COL_FMT(R300_RS_COL_FMT_RGBA); col_count++; break; case TGSI_SEMANTIC_GENERIC: rs->ip[tex_count] |= R300_RS_TEX_PTR(rs_tex_comp) | R300_RS_SEL_S(R300_RS_SEL_C0) | R300_RS_SEL_T(R300_RS_SEL_C1) | R300_RS_SEL_R(R300_RS_SEL_C2) | R300_RS_SEL_Q(R300_RS_SEL_C3); tex_count++; rs_tex_comp+=4; break; default: break; } } if (col_count == 0) { rs->ip[0] |= R300_RS_COL_FMT(R300_RS_COL_FMT_0001); } if (tex_count == 0) { rs->ip[0] |= R300_RS_SEL_S(R300_RS_SEL_K0) | R300_RS_SEL_T(R300_RS_SEL_K0) | R300_RS_SEL_R(R300_RS_SEL_K0) | R300_RS_SEL_Q(R300_RS_SEL_K1); } /* Rasterize at least one color, or bad things happen. */ if ((col_count == 0) && (tex_count == 0)) { col_count++; } for (i = 0; i < tex_count; i++) { rs->inst[i] |= R300_RS_INST_TEX_ID(i) | R300_RS_INST_TEX_CN_WRITE | R300_RS_INST_TEX_ADDR(fp_offset); fp_offset++; } for (i = 0; i < col_count; i++) { rs->inst[i] |= R300_RS_INST_COL_ID(i) | R300_RS_INST_COL_CN_WRITE | R300_RS_INST_COL_ADDR(fp_offset); fp_offset++; } } rs->count = (rs_tex_comp) | (col_count << R300_IC_COUNT_SHIFT) | R300_HIRES_EN; rs->inst_count = MAX2(MAX2(col_count - 1, tex_count - 1), 0); } /* Update the vertex format. */ static void r300_update_derived_shader_state(struct r300_context* r300) { struct r300_shader_key* key; struct r300_vertex_format* vformat; struct r300_rs_block* rs_block; struct r300_shader_derived_value* value; int i; /* key = CALLOC_STRUCT(r300_shader_key); key->vs = r300->vs; key->fs = r300->fs; value = (struct r300_shader_derived_value*) util_hash_table_get(r300->shader_hash_table, (void*)key); if (value) { //vformat = value->vformat; rs_block = value->rs_block; FREE(key); } else { rs_block = CALLOC_STRUCT(r300_rs_block); value = CALLOC_STRUCT(r300_shader_derived_value); r300_update_rs_block(r300, rs_block); //value->vformat = vformat; value->rs_block = rs_block; util_hash_table_set(r300->shader_hash_table, (void*)key, (void*)value); } */ /* XXX This will be refactored ASAP. */ vformat = CALLOC_STRUCT(r300_vertex_format); rs_block = CALLOC_STRUCT(r300_rs_block); for (i = 0; i < 16; i++) { vformat->vs_tab[i] = -1; vformat->fs_tab[i] = -1; } r300_vs_tab_routes(r300, vformat); r300_vertex_psc(r300, vformat); r300_update_fs_tab(r300, vformat); r300_update_rs_block(r300, rs_block); FREE(r300->vertex_info); FREE(r300->rs_block); r300->vertex_info = vformat; r300->rs_block = rs_block; r300->dirty_state |= (R300_NEW_VERTEX_FORMAT | R300_NEW_RS_BLOCK); } static void r300_update_ztop(struct r300_context* r300) { r300->ztop_state.z_buffer_top = R300_ZTOP_ENABLE; /* This is important enough that I felt it warranted a comment. * * According to the docs, these are the conditions where ZTOP must be * disabled: * 1) Alpha testing enabled * 2) Texture kill instructions in fragment shader * 3) Chroma key culling enabled * 4) W-buffering enabled * * The docs claim that for the first three cases, if no ZS writes happen, * then ZTOP can be used. * * Additionally, the following conditions require disabled ZTOP: * ~) Depth writes in fragment shader * ~) Outstanding occlusion queries * * ~C. */ if (r300->dsa_state->alpha_function) { r300->ztop_state.z_buffer_top = R300_ZTOP_DISABLE; } else if (r300->fs->info.uses_kill) { r300->ztop_state.z_buffer_top = R300_ZTOP_DISABLE; } else if (r300_fragment_shader_writes_depth(r300->fs)) { r300->ztop_state.z_buffer_top = R300_ZTOP_DISABLE; } else if (r300->query_current) { r300->ztop_state.z_buffer_top = R300_ZTOP_DISABLE; } } void r300_update_derived_state(struct r300_context* r300) { if (r300->dirty_state & (R300_NEW_FRAGMENT_SHADER | R300_NEW_VERTEX_SHADER)) { r300_update_derived_shader_state(r300); } if (r300->dirty_state & (R300_NEW_DSA | R300_NEW_FRAGMENT_SHADER | R300_NEW_QUERY)) { r300_update_ztop(r300); } }