st_context.c revision 5749ae919e386e49dbf373e362dd74b513c96360
1/************************************************************************** 2 * 3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 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 TUNGSTEN GRAPHICS 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#include "main/imports.h" 29#include "main/accum.h" 30#include "main/context.h" 31#include "main/samplerobj.h" 32#include "main/shaderobj.h" 33#include "program/prog_cache.h" 34#include "vbo/vbo.h" 35#include "glapi/glapi.h" 36#include "st_context.h" 37#include "st_debug.h" 38#include "st_cb_bitmap.h" 39#include "st_cb_blit.h" 40#include "st_cb_bufferobjects.h" 41#include "st_cb_clear.h" 42#include "st_cb_condrender.h" 43#include "st_cb_drawpixels.h" 44#include "st_cb_rasterpos.h" 45#include "st_cb_drawtex.h" 46#include "st_cb_eglimage.h" 47#include "st_cb_fbo.h" 48#include "st_cb_feedback.h" 49#include "st_cb_program.h" 50#include "st_cb_queryobj.h" 51#include "st_cb_readpixels.h" 52#include "st_cb_texture.h" 53#include "st_cb_xformfb.h" 54#include "st_cb_flush.h" 55#include "st_cb_syncobj.h" 56#include "st_cb_strings.h" 57#include "st_cb_texturebarrier.h" 58#include "st_cb_viewport.h" 59#include "st_atom.h" 60#include "st_draw.h" 61#include "st_extensions.h" 62#include "st_gen_mipmap.h" 63#include "st_program.h" 64#include "pipe/p_context.h" 65#include "util/u_inlines.h" 66#include "util/u_upload_mgr.h" 67#include "cso_cache/cso_context.h" 68 69 70DEBUG_GET_ONCE_BOOL_OPTION(mesa_mvp_dp4, "MESA_MVP_DP4", FALSE) 71 72 73/** 74 * Called via ctx->Driver.UpdateState() 75 */ 76void st_invalidate_state(struct gl_context * ctx, GLuint new_state) 77{ 78 struct st_context *st = st_context(ctx); 79 80 /* Replace _NEW_FRAG_CLAMP with ST_NEW_FRAGMENT_PROGRAM for the fallback. */ 81 if (st->clamp_frag_color_in_shader && (new_state & _NEW_FRAG_CLAMP)) { 82 new_state &= ~_NEW_FRAG_CLAMP; 83 st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM; 84 } 85 86 /* Update the vertex shader if ctx->Light._ClampVertexColor was changed. */ 87 if (st->clamp_vert_color_in_shader && (new_state & _NEW_LIGHT)) { 88 st->dirty.st |= ST_NEW_VERTEX_PROGRAM; 89 } 90 91 st->dirty.mesa |= new_state; 92 st->dirty.st |= ST_NEW_MESA; 93 94 /* This is the only core Mesa module we depend upon. 95 * No longer use swrast, swsetup, tnl. 96 */ 97 _vbo_InvalidateState(ctx, new_state); 98} 99 100 101/** 102 * Check for multisample env var override. 103 */ 104int 105st_get_msaa(void) 106{ 107 const char *msaa = _mesa_getenv("__GL_FSAA_MODE"); 108 if (msaa) 109 return atoi(msaa); 110 return 0; 111} 112 113 114 115 116static struct st_context * 117st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe ) 118{ 119 struct pipe_screen *screen = pipe->screen; 120 uint i; 121 struct st_context *st = ST_CALLOC_STRUCT( st_context ); 122 123 ctx->st = st; 124 125 st->ctx = ctx; 126 st->pipe = pipe; 127 128 /* XXX: this is one-off, per-screen init: */ 129 st_debug_init(); 130 131 /* state tracker needs the VBO module */ 132 _vbo_CreateContext(ctx); 133 134 st->dirty.mesa = ~0; 135 st->dirty.st = ~0; 136 137 st->uploader = u_upload_create(st->pipe, 65536, 4, PIPE_BIND_VERTEX_BUFFER); 138 139 if (!screen->get_param(screen, PIPE_CAP_USER_INDEX_BUFFERS)) { 140 st->indexbuf_uploader = u_upload_create(st->pipe, 128 * 1024, 4, 141 PIPE_BIND_INDEX_BUFFER); 142 } 143 144 if (!screen->get_param(screen, PIPE_CAP_USER_CONSTANT_BUFFERS)) { 145 unsigned alignment = 146 screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT); 147 148 st->constbuf_uploader = u_upload_create(pipe, 128 * 1024, alignment, 149 PIPE_BIND_CONSTANT_BUFFER); 150 } 151 152 st->cso_context = cso_create_context(pipe); 153 154 st_init_atoms( st ); 155 st_init_bitmap(st); 156 st_init_clear(st); 157 st_init_draw( st ); 158 st_init_generate_mipmap(st); 159 st_init_blit(st); 160 161 if(pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES)) 162 st->internal_target = PIPE_TEXTURE_2D; 163 else 164 st->internal_target = PIPE_TEXTURE_RECT; 165 166 for (i = 0; i < 3; i++) { 167 memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element)); 168 st->velems_util_draw[i].src_offset = i * 4 * sizeof(float); 169 st->velems_util_draw[i].instance_divisor = 0; 170 st->velems_util_draw[i].vertex_buffer_index = 0; 171 st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; 172 } 173 174 /* we want all vertex data to be placed in buffer objects */ 175 vbo_use_buffer_objects(ctx); 176 177 178 /* make sure that no VBOs are left mapped when we're drawing. */ 179 vbo_always_unmap_buffers(ctx); 180 181 /* Need these flags: 182 */ 183 st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE; 184 185 st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE; 186 187 st->pixel_xfer.cache = _mesa_new_program_cache(); 188 189 st->force_msaa = st_get_msaa(); 190 st->has_stencil_export = 191 screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT); 192 193 /* GL limits and extensions */ 194 st_init_limits(st); 195 st_init_extensions(st); 196 197 return st; 198} 199 200static void st_init_driver_flags(struct gl_driver_flags *f) 201{ 202 f->NewArray = ST_NEW_VERTEX_ARRAYS; 203} 204 205struct st_context *st_create_context(gl_api api, struct pipe_context *pipe, 206 const struct gl_config *visual, 207 struct st_context *share) 208{ 209 struct gl_context *ctx; 210 struct gl_context *shareCtx = share ? share->ctx : NULL; 211 struct dd_function_table funcs; 212 213 /* Sanity checks */ 214 STATIC_ASSERT(MESA_SHADER_VERTEX == PIPE_SHADER_VERTEX); 215 STATIC_ASSERT(MESA_SHADER_FRAGMENT == PIPE_SHADER_FRAGMENT); 216 STATIC_ASSERT(MESA_SHADER_GEOMETRY == PIPE_SHADER_GEOMETRY); 217 218 memset(&funcs, 0, sizeof(funcs)); 219 st_init_driver_functions(&funcs); 220 221 ctx = _mesa_create_context(api, visual, shareCtx, &funcs, NULL); 222 if (!ctx) { 223 return NULL; 224 } 225 226 st_init_driver_flags(&ctx->DriverFlags); 227 228 /* XXX: need a capability bit in gallium to query if the pipe 229 * driver prefers DP4 or MUL/MAD for vertex transformation. 230 */ 231 if (debug_get_option_mesa_mvp_dp4()) 232 _mesa_set_mvp_with_dp4( ctx, GL_TRUE ); 233 234 return st_create_context_priv(ctx, pipe); 235} 236 237 238static void st_destroy_context_priv( struct st_context *st ) 239{ 240 uint i; 241 242 st_destroy_atoms( st ); 243 st_destroy_draw( st ); 244 st_destroy_generate_mipmap(st); 245 st_destroy_blit(st); 246 st_destroy_clear(st); 247 st_destroy_bitmap(st); 248 st_destroy_drawpix(st); 249 st_destroy_drawtex(st); 250 251 for (i = 0; i < Elements(st->state.fragment_sampler_views); i++) { 252 pipe_sampler_view_release(st->pipe, 253 &st->state.fragment_sampler_views[i]); 254 } 255 256 for (i = 0; i < Elements(st->state.vertex_sampler_views); i++) { 257 pipe_sampler_view_release(st->pipe, 258 &st->state.vertex_sampler_views[i]); 259 } 260 261 if (st->default_texture) { 262 st->ctx->Driver.DeleteTexture(st->ctx, st->default_texture); 263 st->default_texture = NULL; 264 } 265 266 u_upload_destroy(st->uploader); 267 if (st->indexbuf_uploader) { 268 u_upload_destroy(st->indexbuf_uploader); 269 } 270 if (st->constbuf_uploader) { 271 u_upload_destroy(st->constbuf_uploader); 272 } 273 free( st ); 274} 275 276 277void st_destroy_context( struct st_context *st ) 278{ 279 struct pipe_context *pipe = st->pipe; 280 struct cso_context *cso = st->cso_context; 281 struct gl_context *ctx = st->ctx; 282 GLuint i; 283 284 /* need to unbind and destroy CSO objects before anything else */ 285 cso_release_all(st->cso_context); 286 287 st_reference_fragprog(st, &st->fp, NULL); 288 st_reference_vertprog(st, &st->vp, NULL); 289 290 /* release framebuffer surfaces */ 291 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 292 pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL); 293 } 294 pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL); 295 296 pipe->set_index_buffer(pipe, NULL); 297 298 for (i = 0; i < PIPE_SHADER_TYPES; i++) { 299 pipe->set_constant_buffer(pipe, i, 0, NULL); 300 } 301 302 _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache); 303 304 _vbo_DestroyContext(st->ctx); 305 306 st_destroy_program_variants(st); 307 308 _mesa_free_context_data(ctx); 309 310 /* This will free the st_context too, so 'st' must not be accessed 311 * afterwards. */ 312 st_destroy_context_priv(st); 313 st = NULL; 314 315 cso_destroy_context(cso); 316 317 pipe->destroy( pipe ); 318 319 free(ctx); 320} 321 322 323void st_init_driver_functions(struct dd_function_table *functions) 324{ 325 _mesa_init_shader_object_functions(functions); 326 _mesa_init_sampler_object_functions(functions); 327 328 functions->Accum = _mesa_accum; 329 330 st_init_blit_functions(functions); 331 st_init_bufferobject_functions(functions); 332 st_init_clear_functions(functions); 333 st_init_bitmap_functions(functions); 334 st_init_drawpixels_functions(functions); 335 st_init_rasterpos_functions(functions); 336 337 st_init_drawtex_functions(functions); 338 339 st_init_eglimage_functions(functions); 340 341 st_init_fbo_functions(functions); 342 st_init_feedback_functions(functions); 343 st_init_program_functions(functions); 344 st_init_query_functions(functions); 345 st_init_cond_render_functions(functions); 346 st_init_readpixels_functions(functions); 347 st_init_texture_functions(functions); 348 st_init_texture_barrier_functions(functions); 349 st_init_flush_functions(functions); 350 st_init_string_functions(functions); 351 st_init_viewport_functions(functions); 352 353 st_init_xformfb_functions(functions); 354 st_init_syncobj_functions(functions); 355 356 functions->UpdateState = st_invalidate_state; 357} 358