diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_state_derived.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_state_derived.c | 299 |
1 files changed, 299 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..d761a0302f --- /dev/null +++ b/src/gallium/drivers/r300/r300_state_derived.c @@ -0,0 +1,299 @@ +/* + * 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" + +/* r300_state_derived: Various bits of state which are dependent upon + * currently bound CSO data. */ + +/* Update the vertex_info struct in our r300_context. + * + * The vertex_info struct describes the post-TCL format of vertices. It is + * required for Draw when doing SW TCL, and also for describing the + * dreaded RS block on R300 chipsets. */ +/* XXX this function should be able to handle vert shaders as well as draw */ +static void r300_update_vertex_layout(struct r300_context* r300) +{ + struct r300_vertex_format vformat; + struct vertex_info vinfo; + boolean pos = FALSE, psize = FALSE, fog = FALSE; + int i, texs = 0, cols = 0; + int tab[16]; + + struct tgsi_shader_info* info = &r300->fs->info; + + memset(&vinfo, 0, sizeof(vinfo)); + 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_POSITION: + pos = TRUE; + tab[i] = 0; + break; + case TGSI_SEMANTIC_COLOR: + tab[i] = 2 + cols++; + break; + case TGSI_SEMANTIC_PSIZE: + psize = TRUE; + tab[i] = 1; + break; + case TGSI_SEMANTIC_FOG: + fog = TRUE; + /* Fall through... */ + case TGSI_SEMANTIC_GENERIC: + tab[i] = 6 + texs++; + break; + default: + debug_printf("r300: Unknown vertex input %d\n", + info->input_semantic_name[i]); + break; + } + } + + /* 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_POS, + draw_find_vs_output(r300->draw, TGSI_SEMANTIC_POSITION, 0)); + } else { + 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); + } + + for (i = 0; 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)); + } + + 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)); + } + + draw_compute_vertex_size(&vinfo); + + if (memcmp(&r300->vertex_info, &vinfo, sizeof(struct vertex_info))) { + uint32_t temp; + debug_printf("attrib count: %d, fp input count: %d\n", + vinfo.num_attribs, info->num_inputs); + for (i = 0; i < vinfo.num_attribs; i++) { + debug_printf("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 < vinfo.num_attribs; i++) { + /* Make sure we have a proper destination for our attribute */ + assert(tab[i] != -1); + + temp = translate_vertex_data_type(vinfo.attrib[i].emit) | + (tab[i] << R300_DST_VEC_LOC_SHIFT); + if (i & 1) { + r300->vertex_info.vap_prog_stream_cntl[i >> 1] &= 0x0000ffff; + r300->vertex_info.vap_prog_stream_cntl[i >> 1] |= temp << 16; + } else { + r300->vertex_info.vap_prog_stream_cntl[i >> 1] &= 0xffff0000; + r300->vertex_info.vap_prog_stream_cntl[i >> 1] |= temp; + } + + r300->vertex_info.vap_prog_stream_cntl_ext[i >> 1] |= + (R300_VAP_SWIZZLE_XYZW << (i & 1 ? 16 : 0)); + } + /* Set the last vector. */ + i--; + r300->vertex_info.vap_prog_stream_cntl[i >> 1] |= (R300_LAST_VEC << + (i & 1 ? 16 : 0)); + + memcpy(r300->vertex_info.tab, tab, sizeof(tab)); + memcpy(&r300->vertex_info, &vinfo, sizeof(struct vertex_info)); + r300->dirty_state |= R300_NEW_VERTEX_FORMAT; + } +} + +/* 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 vertex_info* vinfo = &r300->vertex_info.vinfo; + int* tab = r300->vertex_info.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 < vinfo->num_attribs; i++) { + assert(tab[vinfo->attrib[i].src_index] != -1); + memory_pos = tab[vinfo->attrib[i].src_index] * 4; + switch (vinfo->attrib[i].interp_mode) { + case INTERP_LINEAR: + rs->ip[col_count] |= + R500_RS_COL_PTR(memory_pos) | + R500_RS_COL_FMT(R300_RS_COL_FMT_RGBA); + col_count++; + break; + case INTERP_PERSPECTIVE: + 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); + } + + /* Set up at least one texture pointer or RS will not be happy. */ + 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); + } + + 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 < vinfo->num_attribs; i++) { + memory_pos = tab[vinfo->attrib[i].src_index] * 4; + assert(tab[vinfo->attrib[i].src_index] != -1); + switch (vinfo->attrib[i].interp_mode) { + case INTERP_LINEAR: + rs->ip[col_count] |= + R300_RS_COL_PTR(memory_pos) | + R300_RS_COL_FMT(R300_RS_COL_FMT_RGBA); + col_count++; + break; + case INTERP_PERSPECTIVE: + 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); + } + + 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_update_vertex_layout(r300); + } + + if (r300->dirty_state & R300_NEW_VERTEX_FORMAT) { + r300_update_rs_block(r300); + } +} |