diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_state_derived.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_state_derived.c | 465 |
1 files changed, 465 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_state_derived.c b/src/gallium/drivers/r300/r300_state_derived.c new file mode 100644 index 0000000000..5f6b225d34 --- /dev/null +++ b/src/gallium/drivers/r300/r300_state_derived.c @@ -0,0 +1,465 @@ +/* + * 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 "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. */ + +/* 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 (info->input_semantic_name[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: + psize = TRUE; + tab[i] = 15; + break; + case TGSI_SEMANTIC_FOG: + 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 */ + + if (!pos) { + 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; 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; + int 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 = r300screen->caps->has_tcl ? + R300_DATA_TYPE_FLOAT_4 : + translate_vertex_data_type(vinfo->attrib[i].emit); + temp |= 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. */ + i--; + vformat->vap_prog_stream_cntl[i >> 1] |= + (R300_LAST_VEC << (i & 1 ? 16 : 0)); +} + +/* Update the vertex format. */ +static void r300_update_vertex_format(struct r300_context* r300) +{ + struct r300_vertex_format vformat; + int i; + + memset(&vformat, 0, sizeof(struct r300_vertex_format)); + 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); + + if (memcmp(&r300->vertex_info, &vformat, + sizeof(struct r300_vertex_format))) { + memcpy(&r300->vertex_info, &vformat, + sizeof(struct r300_vertex_format)); + r300->dirty_state |= R300_NEW_VERTEX_FORMAT; + } +} + +/* 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 = &r300->vertex_info; + 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 = r300->rs_block; + struct tgsi_shader_info* info = &r300->fs->info; + int* tab = r300->vertex_info.fs_tab; + int col_count = 0, fp_offset = 0, i, memory_pos, tex_count = 0; + + memset(rs, 0, sizeof(struct r300_rs_block)); + + if (r300_screen(r300->context.screen)->caps->is_r500) { + for (i = 0; i < info->num_inputs; i++) { + assert(tab[i] != -1); + memory_pos = tab[i] * 4; + switch (info->input_semantic_name[i]) { + case TGSI_SEMANTIC_COLOR: + rs->ip[col_count] |= + R500_RS_COL_PTR(memory_pos) | + R500_RS_COL_FMT(R300_RS_COL_FMT_RGBA); + col_count++; + break; + case TGSI_SEMANTIC_GENERIC: + rs->ip[tex_count] |= + R500_RS_SEL_S(memory_pos) | + R500_RS_SEL_T(memory_pos + 1) | + R500_RS_SEL_R(memory_pos + 2) | + R500_RS_SEL_Q(memory_pos + 3); + tex_count++; + break; + default: + break; + } + } + + if (col_count == 0) { + rs->ip[0] |= R500_RS_COL_FMT(R300_RS_COL_FMT_0001); + } + + if (tex_count == 0) { + rs->ip[0] |= + R500_RS_SEL_S(R500_RS_IP_PTR_K0) | + R500_RS_SEL_T(R500_RS_IP_PTR_K0) | + R500_RS_SEL_R(R500_RS_IP_PTR_K0) | + R500_RS_SEL_Q(R500_RS_IP_PTR_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] |= 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++) { + assert(tab[i] != -1); + memory_pos = tab[i] * 4; + switch (info->input_semantic_name[i]) { + case TGSI_SEMANTIC_COLOR: + rs->ip[col_count] |= + R300_RS_COL_PTR(memory_pos) | + R300_RS_COL_FMT(R300_RS_COL_FMT_RGBA); + col_count++; + break; + case TGSI_SEMANTIC_GENERIC: + rs->ip[tex_count] |= + R300_RS_TEX_PTR(memory_pos) | + 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++; + 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 = (tex_count * 4) | (col_count << R300_IC_COUNT_SHIFT) | + R300_HIRES_EN; + + rs->inst_count = MAX2(MAX2(col_count - 1, tex_count - 1), 0); +} + +void r300_update_derived_state(struct r300_context* r300) +{ + if (r300->dirty_state & + (R300_NEW_FRAGMENT_SHADER | R300_NEW_VERTEX_SHADER)) { + r300_update_vertex_format(r300); + } + + if (r300->dirty_state & R300_NEW_VERTEX_FORMAT) { + r300_update_fs_tab(r300); + r300_update_rs_block(r300); + } +} |