1 /* 2 Copyright (C) Intel Corp. 2006. All Rights Reserved. 3 Intel funded Tungsten Graphics to 4 develop this 3D driver. 5 6 Permission is hereby granted, free of charge, to any person obtaining 7 a copy of this software and associated documentation files (the 8 "Software"), to deal in the Software without restriction, including 9 without limitation the rights to use, copy, modify, merge, publish, 10 distribute, sublicense, and/or sell copies of the Software, and to 11 permit persons to whom the Software is furnished to do so, subject to 12 the following conditions: 13 14 The above copyright notice and this permission notice (including the 15 next paragraph) shall be included in all copies or substantial 16 portions of the Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 21 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 26 **********************************************************************/ 27 /* 28 * Authors: 29 * Keith Whitwell <keithw (at) vmware.com> 30 */ 31 32 #include "main/mtypes.h" 33 #include "program/prog_parameter.h" 34 #include "main/shaderapi.h" 35 36 #include "brw_context.h" 37 #include "brw_state.h" 38 #include "intel_buffer_objects.h" 39 40 /** 41 * Creates a temporary BO containing the pull constant data for the shader 42 * stage, and the SURFACE_STATE struct that points at it. 43 * 44 * Pull constants are GLSL uniforms (and other constant data) beyond what we 45 * could fit as push constants, or that have variable-index array access 46 * (which is easiest to support using pull constants, and avoids filling 47 * register space with mostly-unused data). 48 * 49 * Compare this path to brw_curbe.c for gen4/5 push constants, and 50 * gen6_vs_state.c for gen6+ push constants. 51 */ 52 void 53 brw_upload_pull_constants(struct brw_context *brw, 54 GLbitfield64 brw_new_constbuf, 55 const struct gl_program *prog, 56 struct brw_stage_state *stage_state, 57 const struct brw_stage_prog_data *prog_data) 58 { 59 unsigned i; 60 uint32_t surf_index = prog_data->binding_table.pull_constants_start; 61 62 if (!prog_data->nr_pull_params) { 63 if (stage_state->surf_offset[surf_index]) { 64 stage_state->surf_offset[surf_index] = 0; 65 brw->ctx.NewDriverState |= brw_new_constbuf; 66 } 67 return; 68 } 69 70 /* Updates the ParamaterValues[i] pointers for all parameters of the 71 * basic type of PROGRAM_STATE_VAR. 72 */ 73 _mesa_load_state_parameters(&brw->ctx, prog->Parameters); 74 75 /* BRW_NEW_*_PROG_DATA | _NEW_PROGRAM_CONSTANTS */ 76 uint32_t size = prog_data->nr_pull_params * 4; 77 drm_intel_bo *const_bo = NULL; 78 uint32_t const_offset; 79 gl_constant_value *constants = intel_upload_space(brw, size, 64, 80 &const_bo, &const_offset); 81 82 STATIC_ASSERT(sizeof(gl_constant_value) == sizeof(float)); 83 84 for (i = 0; i < prog_data->nr_pull_params; i++) { 85 constants[i] = *prog_data->pull_param[i]; 86 } 87 88 if (0) { 89 for (i = 0; i < ALIGN(prog_data->nr_pull_params, 4) / 4; i++) { 90 const gl_constant_value *row = &constants[i * 4]; 91 fprintf(stderr, "const surface %3d: %4.3f %4.3f %4.3f %4.3f\n", 92 i, row[0].f, row[1].f, row[2].f, row[3].f); 93 } 94 } 95 96 brw_create_constant_surface(brw, const_bo, const_offset, size, 97 &stage_state->surf_offset[surf_index]); 98 drm_intel_bo_unreference(const_bo); 99 100 brw->ctx.NewDriverState |= brw_new_constbuf; 101 } 102 103 104 /* Creates a new VS constant buffer reflecting the current VS program's 105 * constants, if needed by the VS program. 106 * 107 * Otherwise, constants go through the CURBEs using the brw_constant_buffer 108 * state atom. 109 */ 110 static void 111 brw_upload_vs_pull_constants(struct brw_context *brw) 112 { 113 struct brw_stage_state *stage_state = &brw->vs.base; 114 115 /* BRW_NEW_VERTEX_PROGRAM */ 116 struct brw_program *vp = (struct brw_program *) brw->vertex_program; 117 118 /* BRW_NEW_VS_PROG_DATA */ 119 const struct brw_stage_prog_data *prog_data = brw->vs.base.prog_data; 120 121 _mesa_shader_write_subroutine_indices(&brw->ctx, MESA_SHADER_VERTEX); 122 /* _NEW_PROGRAM_CONSTANTS */ 123 brw_upload_pull_constants(brw, BRW_NEW_VS_CONSTBUF, &vp->program, 124 stage_state, prog_data); 125 } 126 127 const struct brw_tracked_state brw_vs_pull_constants = { 128 .dirty = { 129 .mesa = _NEW_PROGRAM_CONSTANTS, 130 .brw = BRW_NEW_BATCH | 131 BRW_NEW_BLORP | 132 BRW_NEW_VERTEX_PROGRAM | 133 BRW_NEW_VS_PROG_DATA, 134 }, 135 .emit = brw_upload_vs_pull_constants, 136 }; 137 138 static void 139 brw_upload_vs_ubo_surfaces(struct brw_context *brw) 140 { 141 struct gl_context *ctx = &brw->ctx; 142 /* _NEW_PROGRAM */ 143 struct gl_shader_program *prog = 144 ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX]; 145 146 if (!prog || !prog->_LinkedShaders[MESA_SHADER_VERTEX]) 147 return; 148 149 /* BRW_NEW_VS_PROG_DATA */ 150 brw_upload_ubo_surfaces(brw, prog->_LinkedShaders[MESA_SHADER_VERTEX]->Program, 151 &brw->vs.base, brw->vs.base.prog_data); 152 } 153 154 const struct brw_tracked_state brw_vs_ubo_surfaces = { 155 .dirty = { 156 .mesa = _NEW_PROGRAM, 157 .brw = BRW_NEW_BATCH | 158 BRW_NEW_BLORP | 159 BRW_NEW_UNIFORM_BUFFER | 160 BRW_NEW_VS_PROG_DATA, 161 }, 162 .emit = brw_upload_vs_ubo_surfaces, 163 }; 164 165 static void 166 brw_upload_vs_abo_surfaces(struct brw_context *brw) 167 { 168 /* _NEW_PROGRAM */ 169 const struct gl_program *vp = brw->vertex_program; 170 171 if (vp) { 172 /* BRW_NEW_VS_PROG_DATA */ 173 brw_upload_abo_surfaces(brw, vp, &brw->vs.base, brw->vs.base.prog_data); 174 } 175 } 176 177 const struct brw_tracked_state brw_vs_abo_surfaces = { 178 .dirty = { 179 .mesa = _NEW_PROGRAM, 180 .brw = BRW_NEW_ATOMIC_BUFFER | 181 BRW_NEW_BATCH | 182 BRW_NEW_BLORP | 183 BRW_NEW_VS_PROG_DATA, 184 }, 185 .emit = brw_upload_vs_abo_surfaces, 186 }; 187 188 static void 189 brw_upload_vs_image_surfaces(struct brw_context *brw) 190 { 191 /* BRW_NEW_VERTEX_PROGRAM */ 192 const struct gl_program *vp = brw->vertex_program; 193 194 if (vp) { 195 /* BRW_NEW_VS_PROG_DATA, BRW_NEW_IMAGE_UNITS, _NEW_TEXTURE */ 196 brw_upload_image_surfaces(brw, vp, &brw->vs.base, 197 brw->vs.base.prog_data); 198 } 199 } 200 201 const struct brw_tracked_state brw_vs_image_surfaces = { 202 .dirty = { 203 .mesa = _NEW_TEXTURE, 204 .brw = BRW_NEW_BATCH | 205 BRW_NEW_BLORP | 206 BRW_NEW_IMAGE_UNITS | 207 BRW_NEW_VERTEX_PROGRAM | 208 BRW_NEW_VS_PROG_DATA, 209 }, 210 .emit = brw_upload_vs_image_surfaces, 211 }; 212
