1 /************************************************************************** 2 * 3 * Copyright 2007 VMware, Inc. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * 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, sub license, 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 portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 /* 29 * Authors: 30 * Keith Whitwell <keithw (at) vmware.com> 31 * Brian Paul 32 */ 33 34 #include "main/imports.h" 35 #include "program/prog_parameter.h" 36 #include "program/prog_print.h" 37 #include "main/shaderapi.h" 38 #include "pipe/p_context.h" 39 #include "pipe/p_defines.h" 40 #include "util/u_inlines.h" 41 #include "util/u_upload_mgr.h" 42 #include "cso_cache/cso_context.h" 43 44 #include "st_debug.h" 45 #include "st_context.h" 46 #include "st_atom.h" 47 #include "st_atom_constbuf.h" 48 #include "st_program.h" 49 #include "st_cb_bufferobjects.h" 50 51 /** 52 * Pass the given program parameters to the graphics pipe as a 53 * constant buffer. 54 */ 55 void st_upload_constants(struct st_context *st, struct gl_program *prog) 56 { 57 gl_shader_stage stage = prog->info.stage; 58 struct gl_program_parameter_list *params = prog->Parameters; 59 enum pipe_shader_type shader_type = pipe_shader_type_from_mesa(stage); 60 61 assert(shader_type == PIPE_SHADER_VERTEX || 62 shader_type == PIPE_SHADER_FRAGMENT || 63 shader_type == PIPE_SHADER_GEOMETRY || 64 shader_type == PIPE_SHADER_TESS_CTRL || 65 shader_type == PIPE_SHADER_TESS_EVAL || 66 shader_type == PIPE_SHADER_COMPUTE); 67 68 /* update the ATI constants before rendering */ 69 if (shader_type == PIPE_SHADER_FRAGMENT && st->fp->ati_fs) { 70 struct ati_fragment_shader *ati_fs = st->fp->ati_fs; 71 unsigned c; 72 73 for (c = 0; c < MAX_NUM_FRAGMENT_CONSTANTS_ATI; c++) { 74 if (ati_fs->LocalConstDef & (1 << c)) 75 memcpy(params->ParameterValues[c], 76 ati_fs->Constants[c], sizeof(GLfloat) * 4); 77 else 78 memcpy(params->ParameterValues[c], 79 st->ctx->ATIFragmentShader.GlobalConstants[c], sizeof(GLfloat) * 4); 80 } 81 } 82 83 /* Make all bindless samplers/images bound texture/image units resident in 84 * the context. 85 */ 86 st_make_bound_samplers_resident(st, prog); 87 st_make_bound_images_resident(st, prog); 88 89 /* update constants */ 90 if (params && params->NumParameters) { 91 struct pipe_constant_buffer cb; 92 const uint paramBytes = params->NumParameters * sizeof(GLfloat) * 4; 93 94 /* Update the constants which come from fixed-function state, such as 95 * transformation matrices, fog factors, etc. The rest of the values in 96 * the parameters list are explicitly set by the user with glUniform, 97 * glProgramParameter(), etc. 98 */ 99 if (params->StateFlags) 100 _mesa_load_state_parameters(st->ctx, params); 101 102 _mesa_shader_write_subroutine_indices(st->ctx, stage); 103 104 cb.buffer = NULL; 105 cb.user_buffer = params->ParameterValues; 106 cb.buffer_offset = 0; 107 cb.buffer_size = paramBytes; 108 109 if (ST_DEBUG & DEBUG_CONSTANTS) { 110 debug_printf("%s(shader=%d, numParams=%d, stateFlags=0x%x)\n", 111 __func__, shader_type, params->NumParameters, 112 params->StateFlags); 113 _mesa_print_parameter_list(params); 114 } 115 116 cso_set_constant_buffer(st->cso_context, shader_type, 0, &cb); 117 pipe_resource_reference(&cb.buffer, NULL); 118 119 st->state.constants[shader_type].ptr = params->ParameterValues; 120 st->state.constants[shader_type].size = paramBytes; 121 } 122 else if (st->state.constants[shader_type].ptr) { 123 /* Unbind. */ 124 st->state.constants[shader_type].ptr = NULL; 125 st->state.constants[shader_type].size = 0; 126 cso_set_constant_buffer(st->cso_context, shader_type, 0, NULL); 127 } 128 } 129 130 131 /** 132 * Vertex shader: 133 */ 134 void st_update_vs_constants(struct st_context *st ) 135 { 136 st_upload_constants(st, &st->vp->Base); 137 } 138 139 /** 140 * Fragment shader: 141 */ 142 void st_update_fs_constants(struct st_context *st ) 143 { 144 st_upload_constants(st, &st->fp->Base); 145 } 146 147 148 /* Geometry shader: 149 */ 150 void st_update_gs_constants(struct st_context *st ) 151 { 152 struct st_common_program *gp = st->gp; 153 154 if (gp) 155 st_upload_constants(st, &gp->Base); 156 } 157 158 /* Tessellation control shader: 159 */ 160 void st_update_tcs_constants(struct st_context *st ) 161 { 162 struct st_common_program *tcp = st->tcp; 163 164 if (tcp) 165 st_upload_constants(st, &tcp->Base); 166 } 167 168 /* Tessellation evaluation shader: 169 */ 170 void st_update_tes_constants(struct st_context *st ) 171 { 172 struct st_common_program *tep = st->tep; 173 174 if (tep) 175 st_upload_constants(st, &tep->Base); 176 } 177 178 /* Compute shader: 179 */ 180 void st_update_cs_constants(struct st_context *st ) 181 { 182 struct st_compute_program *cp = st->cp; 183 184 if (cp) 185 st_upload_constants(st, &cp->Base); 186 } 187 188 static void st_bind_ubos(struct st_context *st, struct gl_program *prog, 189 unsigned shader_type) 190 { 191 unsigned i; 192 struct pipe_constant_buffer cb = { 0 }; 193 194 if (!prog) 195 return; 196 197 for (i = 0; i < prog->info.num_ubos; i++) { 198 struct gl_buffer_binding *binding; 199 struct st_buffer_object *st_obj; 200 201 binding = 202 &st->ctx->UniformBufferBindings[prog->sh.UniformBlocks[i]->Binding]; 203 st_obj = st_buffer_object(binding->BufferObject); 204 205 cb.buffer = st_obj->buffer; 206 207 if (cb.buffer) { 208 cb.buffer_offset = binding->Offset; 209 cb.buffer_size = cb.buffer->width0 - binding->Offset; 210 211 /* AutomaticSize is FALSE if the buffer was set with BindBufferRange. 212 * Take the minimum just to be sure. 213 */ 214 if (!binding->AutomaticSize) 215 cb.buffer_size = MIN2(cb.buffer_size, (unsigned) binding->Size); 216 } 217 else { 218 cb.buffer_offset = 0; 219 cb.buffer_size = 0; 220 } 221 222 cso_set_constant_buffer(st->cso_context, shader_type, 1 + i, &cb); 223 } 224 } 225 226 void st_bind_vs_ubos(struct st_context *st) 227 { 228 struct gl_program *prog = 229 st->ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX]; 230 231 st_bind_ubos(st, prog, PIPE_SHADER_VERTEX); 232 } 233 234 void st_bind_fs_ubos(struct st_context *st) 235 { 236 struct gl_program *prog = 237 st->ctx->_Shader->CurrentProgram[MESA_SHADER_FRAGMENT]; 238 239 st_bind_ubos(st, prog, PIPE_SHADER_FRAGMENT); 240 } 241 242 void st_bind_gs_ubos(struct st_context *st) 243 { 244 struct gl_program *prog = 245 st->ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY]; 246 247 st_bind_ubos(st, prog, PIPE_SHADER_GEOMETRY); 248 } 249 250 void st_bind_tcs_ubos(struct st_context *st) 251 { 252 struct gl_program *prog = 253 st->ctx->_Shader->CurrentProgram[MESA_SHADER_TESS_CTRL]; 254 255 st_bind_ubos(st, prog, PIPE_SHADER_TESS_CTRL); 256 } 257 258 void st_bind_tes_ubos(struct st_context *st) 259 { 260 struct gl_program *prog = 261 st->ctx->_Shader->CurrentProgram[MESA_SHADER_TESS_EVAL]; 262 263 st_bind_ubos(st, prog, PIPE_SHADER_TESS_EVAL); 264 } 265 266 void st_bind_cs_ubos(struct st_context *st) 267 { 268 struct gl_program *prog = 269 st->ctx->_Shader->CurrentProgram[MESA_SHADER_COMPUTE]; 270 271 st_bind_ubos(st, prog, PIPE_SHADER_COMPUTE); 272 } 273
