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 70 DEBUG_GET_ONCE_BOOL_OPTION(mesa_mvp_dp4, "MESA_MVP_DP4", FALSE) 71 72 73 /** 74 * Called via ctx->Driver.UpdateState() 75 */ 76 void 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 */ 104 int 105 st_get_msaa(void) 106 { 107 const char *msaa = _mesa_getenv("__GL_FSAA_MODE"); 108 if (msaa) 109 return atoi(msaa); 110 return 0; 111 } 112 113 114 115 116 static struct st_context * 117 st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe, 118 const struct st_config_options *options) 119 { 120 struct pipe_screen *screen = pipe->screen; 121 uint i; 122 struct st_context *st = ST_CALLOC_STRUCT( st_context ); 123 124 st->options = *options; 125 126 ctx->st = st; 127 128 st->ctx = ctx; 129 st->pipe = pipe; 130 131 /* XXX: this is one-off, per-screen init: */ 132 st_debug_init(); 133 134 /* state tracker needs the VBO module */ 135 _vbo_CreateContext(ctx); 136 137 st->dirty.mesa = ~0; 138 st->dirty.st = ~0; 139 140 st->uploader = u_upload_create(st->pipe, 65536, 4, PIPE_BIND_VERTEX_BUFFER); 141 142 if (!screen->get_param(screen, PIPE_CAP_USER_INDEX_BUFFERS)) { 143 st->indexbuf_uploader = u_upload_create(st->pipe, 128 * 1024, 4, 144 PIPE_BIND_INDEX_BUFFER); 145 } 146 147 if (!screen->get_param(screen, PIPE_CAP_USER_CONSTANT_BUFFERS)) { 148 unsigned alignment = 149 screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT); 150 151 st->constbuf_uploader = u_upload_create(pipe, 128 * 1024, alignment, 152 PIPE_BIND_CONSTANT_BUFFER); 153 } 154 155 st->cso_context = cso_create_context(pipe); 156 157 st_init_atoms( st ); 158 st_init_bitmap(st); 159 st_init_clear(st); 160 st_init_draw( st ); 161 st_init_generate_mipmap(st); 162 st_init_blit(st); 163 164 if(pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES)) 165 st->internal_target = PIPE_TEXTURE_2D; 166 else 167 st->internal_target = PIPE_TEXTURE_RECT; 168 169 /* Vertex element objects used for drawing rectangles for glBitmap, 170 * glDrawPixels, glClear, etc. 171 */ 172 for (i = 0; i < Elements(st->velems_util_draw); i++) { 173 memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element)); 174 st->velems_util_draw[i].src_offset = i * 4 * sizeof(float); 175 st->velems_util_draw[i].instance_divisor = 0; 176 st->velems_util_draw[i].vertex_buffer_index = 0; 177 st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; 178 } 179 180 /* we want all vertex data to be placed in buffer objects */ 181 vbo_use_buffer_objects(ctx); 182 183 184 /* make sure that no VBOs are left mapped when we're drawing. */ 185 vbo_always_unmap_buffers(ctx); 186 187 /* Need these flags: 188 */ 189 st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE; 190 191 st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE; 192 193 st->pixel_xfer.cache = _mesa_new_program_cache(); 194 195 st->force_msaa = st_get_msaa(); 196 st->has_stencil_export = 197 screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT); 198 199 /* GL limits and extensions */ 200 st_init_limits(st); 201 st_init_extensions(st); 202 203 return st; 204 } 205 206 static void st_init_driver_flags(struct gl_driver_flags *f) 207 { 208 f->NewArray = ST_NEW_VERTEX_ARRAYS; 209 } 210 211 struct st_context *st_create_context(gl_api api, struct pipe_context *pipe, 212 const struct gl_config *visual, 213 struct st_context *share, 214 const struct st_config_options *options) 215 { 216 struct gl_context *ctx; 217 struct gl_context *shareCtx = share ? share->ctx : NULL; 218 struct dd_function_table funcs; 219 220 /* Sanity checks */ 221 STATIC_ASSERT(MESA_SHADER_VERTEX == PIPE_SHADER_VERTEX); 222 STATIC_ASSERT(MESA_SHADER_FRAGMENT == PIPE_SHADER_FRAGMENT); 223 STATIC_ASSERT(MESA_SHADER_GEOMETRY == PIPE_SHADER_GEOMETRY); 224 225 memset(&funcs, 0, sizeof(funcs)); 226 st_init_driver_functions(&funcs); 227 228 ctx = _mesa_create_context(api, visual, shareCtx, &funcs, NULL); 229 if (!ctx) { 230 return NULL; 231 } 232 233 st_init_driver_flags(&ctx->DriverFlags); 234 235 /* XXX: need a capability bit in gallium to query if the pipe 236 * driver prefers DP4 or MUL/MAD for vertex transformation. 237 */ 238 if (debug_get_option_mesa_mvp_dp4()) 239 _mesa_set_mvp_with_dp4( ctx, GL_TRUE ); 240 241 return st_create_context_priv(ctx, pipe, options); 242 } 243 244 245 static void st_destroy_context_priv( struct st_context *st ) 246 { 247 uint shader, i; 248 249 st_destroy_atoms( st ); 250 st_destroy_draw( st ); 251 st_destroy_generate_mipmap(st); 252 st_destroy_blit(st); 253 st_destroy_clear(st); 254 st_destroy_bitmap(st); 255 st_destroy_drawpix(st); 256 st_destroy_drawtex(st); 257 258 for (shader = 0; shader < Elements(st->state.sampler_views); shader++) { 259 for (i = 0; i < Elements(st->state.sampler_views[0]); i++) { 260 pipe_sampler_view_release(st->pipe, 261 &st->state.sampler_views[shader][i]); 262 } 263 } 264 265 if (st->default_texture) { 266 st->ctx->Driver.DeleteTexture(st->ctx, st->default_texture); 267 st->default_texture = NULL; 268 } 269 270 u_upload_destroy(st->uploader); 271 if (st->indexbuf_uploader) { 272 u_upload_destroy(st->indexbuf_uploader); 273 } 274 if (st->constbuf_uploader) { 275 u_upload_destroy(st->constbuf_uploader); 276 } 277 free( st ); 278 } 279 280 281 void st_destroy_context( struct st_context *st ) 282 { 283 struct pipe_context *pipe = st->pipe; 284 struct cso_context *cso = st->cso_context; 285 struct gl_context *ctx = st->ctx; 286 GLuint i; 287 288 /* need to unbind and destroy CSO objects before anything else */ 289 cso_release_all(st->cso_context); 290 291 st_reference_fragprog(st, &st->fp, NULL); 292 st_reference_vertprog(st, &st->vp, NULL); 293 294 /* release framebuffer surfaces */ 295 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { 296 pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL); 297 } 298 pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL); 299 300 pipe->set_index_buffer(pipe, NULL); 301 302 for (i = 0; i < PIPE_SHADER_TYPES; i++) { 303 pipe->set_constant_buffer(pipe, i, 0, NULL); 304 } 305 306 _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache); 307 308 _vbo_DestroyContext(st->ctx); 309 310 st_destroy_program_variants(st); 311 312 _mesa_free_context_data(ctx); 313 314 /* This will free the st_context too, so 'st' must not be accessed 315 * afterwards. */ 316 st_destroy_context_priv(st); 317 st = NULL; 318 319 cso_destroy_context(cso); 320 321 pipe->destroy( pipe ); 322 323 free(ctx); 324 } 325 326 327 void st_init_driver_functions(struct dd_function_table *functions) 328 { 329 _mesa_init_shader_object_functions(functions); 330 _mesa_init_sampler_object_functions(functions); 331 332 functions->Accum = _mesa_accum; 333 334 st_init_blit_functions(functions); 335 st_init_bufferobject_functions(functions); 336 st_init_clear_functions(functions); 337 st_init_bitmap_functions(functions); 338 st_init_drawpixels_functions(functions); 339 st_init_rasterpos_functions(functions); 340 341 st_init_drawtex_functions(functions); 342 343 st_init_eglimage_functions(functions); 344 345 st_init_fbo_functions(functions); 346 st_init_feedback_functions(functions); 347 st_init_program_functions(functions); 348 st_init_query_functions(functions); 349 st_init_cond_render_functions(functions); 350 st_init_readpixels_functions(functions); 351 st_init_texture_functions(functions); 352 st_init_texture_barrier_functions(functions); 353 st_init_flush_functions(functions); 354 st_init_string_functions(functions); 355 st_init_viewport_functions(functions); 356 357 st_init_xformfb_functions(functions); 358 st_init_syncobj_functions(functions); 359 360 functions->UpdateState = st_invalidate_state; 361 } 362
