| /* |
| * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> |
| * |
| * 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 "draw/draw_context.h" |
| |
| #include "util/u_math.h" |
| #include "util/u_memory.h" |
| |
| #include "r300_context.h" |
| #include "r300_fs.h" |
| #include "r300_screen.h" |
| #include "r300_state_derived.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; |
| uint16_t type, swizzle; |
| enum pipe_format format; |
| 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); |
| |
| format = draw_translate_vinfo_format(vinfo->attrib[i].emit); |
| |
| /* Obtain the type of data in this attribute. */ |
| type = r300_translate_vertex_data_type(format) | |
| tab[i] << R300_DST_VEC_LOC_SHIFT; |
| |
| /* Obtain the swizzle for this attribute. Note that the default |
| * swizzle in the hardware is not XYZW! */ |
| swizzle = r300_translate_vertex_data_swizzle(format); |
| |
| /* Add the attribute to the PSC table. */ |
| if (i & 1) { |
| vformat->vap_prog_stream_cntl[i >> 1] |= type << 16; |
| |
| vformat->vap_prog_stream_cntl_ext[i >> 1] |= swizzle << 16; |
| } else { |
| vformat->vap_prog_stream_cntl[i >> 1] |= type << 0; |
| |
| vformat->vap_prog_stream_cntl_ext[i >> 1] |= swizzle << 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); |
| } |
| } |