gen6_wm_state.c revision 29362875f2613ad87abe7725ce3c56c36d16cf9b
1/* 2 * Copyright © 2009 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 * 23 * Authors: 24 * Eric Anholt <eric@anholt.net> 25 * 26 */ 27 28#include "brw_context.h" 29#include "brw_state.h" 30#include "brw_defines.h" 31#include "brw_util.h" 32#include "brw_wm.h" 33#include "program/prog_parameter.h" 34#include "program/prog_statevars.h" 35#include "intel_batchbuffer.h" 36 37static void 38gen6_upload_wm_push_constants(struct brw_context *brw) 39{ 40 struct intel_context *intel = &brw->intel; 41 struct gl_context *ctx = &intel->ctx; 42 /* BRW_NEW_FRAGMENT_PROGRAM */ 43 const struct brw_fragment_program *fp = 44 brw_fragment_program_const(brw->fragment_program); 45 46 /* Updates the ParameterValues[i] pointers for all parameters of the 47 * basic type of PROGRAM_STATE_VAR. 48 */ 49 /* XXX: Should this happen somewhere before to get our state flag set? */ 50 _mesa_load_state_parameters(ctx, fp->program.Base.Parameters); 51 52 /* CACHE_NEW_WM_PROG */ 53 if (brw->wm.prog_data->nr_params != 0) { 54 float *constants; 55 unsigned int i; 56 57 constants = brw_state_batch(brw, AUB_TRACE_WM_CONSTANTS, 58 brw->wm.prog_data->nr_params * 59 sizeof(float), 60 32, &brw->wm.push_const_offset); 61 62 for (i = 0; i < brw->wm.prog_data->nr_params; i++) { 63 constants[i] = convert_param(brw->wm.prog_data->param_convert[i], 64 brw->wm.prog_data->param[i]); 65 } 66 67 if (0) { 68 printf("WM constants:\n"); 69 for (i = 0; i < brw->wm.prog_data->nr_params; i++) { 70 if ((i & 7) == 0) 71 printf("g%d: ", brw->wm.prog_data->first_curbe_grf + i / 8); 72 printf("%8f ", constants[i]); 73 if ((i & 7) == 7) 74 printf("\n"); 75 } 76 if ((i & 7) != 0) 77 printf("\n"); 78 printf("\n"); 79 } 80 } 81} 82 83const struct brw_tracked_state gen6_wm_push_constants = { 84 .dirty = { 85 .mesa = _NEW_PROGRAM_CONSTANTS, 86 .brw = (BRW_NEW_BATCH | 87 BRW_NEW_FRAGMENT_PROGRAM), 88 .cache = CACHE_NEW_WM_PROG, 89 }, 90 .emit = gen6_upload_wm_push_constants, 91}; 92 93static void 94upload_wm_state(struct brw_context *brw) 95{ 96 struct intel_context *intel = &brw->intel; 97 struct gl_context *ctx = &intel->ctx; 98 const struct brw_fragment_program *fp = 99 brw_fragment_program_const(brw->fragment_program); 100 uint32_t dw2, dw4, dw5, dw6; 101 bool multisampled = false; 102 103 /* _NEW_BUFFERS */ 104 if (ctx->DrawBuffer->_ColorDrawBuffers[0]) 105 multisampled = ctx->DrawBuffer->_ColorDrawBuffers[0]->NumSamples > 0; 106 107 /* CACHE_NEW_WM_PROG */ 108 if (brw->wm.prog_data->nr_params == 0) { 109 /* Disable the push constant buffers. */ 110 BEGIN_BATCH(5); 111 OUT_BATCH(_3DSTATE_CONSTANT_PS << 16 | (5 - 2)); 112 OUT_BATCH(0); 113 OUT_BATCH(0); 114 OUT_BATCH(0); 115 OUT_BATCH(0); 116 ADVANCE_BATCH(); 117 } else { 118 BEGIN_BATCH(5); 119 OUT_BATCH(_3DSTATE_CONSTANT_PS << 16 | 120 GEN6_CONSTANT_BUFFER_0_ENABLE | 121 (5 - 2)); 122 /* Pointer to the WM constant buffer. Covered by the set of 123 * state flags from gen6_upload_wm_push_constants. 124 */ 125 OUT_BATCH(brw->wm.push_const_offset + 126 ALIGN(brw->wm.prog_data->nr_params, 127 brw->wm.prog_data->dispatch_width) / 8 - 1); 128 OUT_BATCH(0); 129 OUT_BATCH(0); 130 OUT_BATCH(0); 131 ADVANCE_BATCH(); 132 } 133 134 dw2 = dw4 = dw5 = dw6 = 0; 135 dw4 |= GEN6_WM_STATISTICS_ENABLE; 136 dw5 |= GEN6_WM_LINE_AA_WIDTH_1_0; 137 dw5 |= GEN6_WM_LINE_END_CAP_AA_WIDTH_0_5; 138 139 /* Use ALT floating point mode for ARB fragment programs, because they 140 * require 0^0 == 1. Even though _CurrentFragmentProgram is used for 141 * rendering, CurrentFragmentProgram is used for this check to 142 * differentiate between the GLSL and non-GLSL cases. 143 */ 144 if (ctx->Shader.CurrentFragmentProgram == NULL) 145 dw2 |= GEN6_WM_FLOATING_POINT_MODE_ALT; 146 147 /* CACHE_NEW_SAMPLER */ 148 dw2 |= (ALIGN(brw->sampler.count, 4) / 4) << GEN6_WM_SAMPLER_COUNT_SHIFT; 149 dw4 |= (brw->wm.prog_data->first_curbe_grf << 150 GEN6_WM_DISPATCH_START_GRF_SHIFT_0); 151 dw4 |= (brw->wm.prog_data->first_curbe_grf_16 << 152 GEN6_WM_DISPATCH_START_GRF_SHIFT_2); 153 154 dw5 |= (brw->max_wm_threads - 1) << GEN6_WM_MAX_THREADS_SHIFT; 155 156 /* CACHE_NEW_WM_PROG */ 157 if (brw->wm.prog_data->dispatch_width == 8) { 158 dw5 |= GEN6_WM_8_DISPATCH_ENABLE; 159 if (brw->wm.prog_data->prog_offset_16) 160 dw5 |= GEN6_WM_16_DISPATCH_ENABLE; 161 } else { 162 dw5 |= GEN6_WM_16_DISPATCH_ENABLE; 163 } 164 165 /* CACHE_NEW_WM_PROG | _NEW_COLOR */ 166 if (brw->wm.prog_data->dual_src_blend && 167 (ctx->Color.BlendEnabled & 1) && 168 ctx->Color.Blend[0]._UsesDualSrc) { 169 dw5 |= GEN6_WM_DUAL_SOURCE_BLEND_ENABLE; 170 } 171 172 /* _NEW_LINE */ 173 if (ctx->Line.StippleFlag) 174 dw5 |= GEN6_WM_LINE_STIPPLE_ENABLE; 175 176 /* _NEW_POLYGON */ 177 if (ctx->Polygon.StippleFlag) 178 dw5 |= GEN6_WM_POLYGON_STIPPLE_ENABLE; 179 180 /* BRW_NEW_FRAGMENT_PROGRAM */ 181 if (fp->program.Base.InputsRead & FRAG_BIT_WPOS) 182 dw5 |= GEN6_WM_USES_SOURCE_DEPTH | GEN6_WM_USES_SOURCE_W; 183 if (fp->program.Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) 184 dw5 |= GEN6_WM_COMPUTED_DEPTH; 185 /* CACHE_NEW_WM_PROG */ 186 dw6 |= brw->wm.prog_data->barycentric_interp_modes << 187 GEN6_WM_BARYCENTRIC_INTERPOLATION_MODE_SHIFT; 188 189 /* _NEW_COLOR */ 190 if (fp->program.UsesKill || ctx->Color.AlphaEnabled) 191 dw5 |= GEN6_WM_KILL_ENABLE; 192 193 if (brw_color_buffer_write_enabled(brw) || 194 dw5 & (GEN6_WM_KILL_ENABLE | GEN6_WM_COMPUTED_DEPTH)) { 195 dw5 |= GEN6_WM_DISPATCH_ENABLE; 196 } 197 198 dw6 |= _mesa_bitcount_64(brw->fragment_program->Base.InputsRead) << 199 GEN6_WM_NUM_SF_OUTPUTS_SHIFT; 200 if (multisampled) { 201 dw6 |= GEN6_WM_MSRAST_ON_PATTERN; 202 dw6 |= GEN6_WM_MSDISPMODE_PERPIXEL; 203 } else { 204 dw6 |= GEN6_WM_MSRAST_OFF_PIXEL; 205 dw6 |= GEN6_WM_MSDISPMODE_PERSAMPLE; 206 } 207 208 BEGIN_BATCH(9); 209 OUT_BATCH(_3DSTATE_WM << 16 | (9 - 2)); 210 OUT_BATCH(brw->wm.prog_offset); 211 OUT_BATCH(dw2); 212 if (brw->wm.prog_data->total_scratch) { 213 OUT_RELOC(brw->wm.scratch_bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 214 ffs(brw->wm.prog_data->total_scratch) - 11); 215 } else { 216 OUT_BATCH(0); 217 } 218 OUT_BATCH(dw4); 219 OUT_BATCH(dw5); 220 OUT_BATCH(dw6); 221 OUT_BATCH(0); /* kernel 1 pointer */ 222 /* kernel 2 pointer */ 223 OUT_BATCH(brw->wm.prog_offset + brw->wm.prog_data->prog_offset_16); 224 ADVANCE_BATCH(); 225} 226 227const struct brw_tracked_state gen6_wm_state = { 228 .dirty = { 229 .mesa = (_NEW_LINE | 230 _NEW_COLOR | 231 _NEW_BUFFERS | 232 _NEW_PROGRAM_CONSTANTS | 233 _NEW_POLYGON), 234 .brw = (BRW_NEW_FRAGMENT_PROGRAM | 235 BRW_NEW_BATCH), 236 .cache = (CACHE_NEW_SAMPLER | 237 CACHE_NEW_WM_PROG) 238 }, 239 .emit = upload_wm_state, 240}; 241