st_context.c revision f2b3f6cbdfc4799a0f742c06d2ce0755582c50c4
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/context.h" 30#include "main/extensions.h" 31#include "main/matrix.h" 32#include "main/buffers.h" 33#include "vbo/vbo.h" 34#include "shader/shader_api.h" 35#include "st_public.h" 36#include "st_context.h" 37#include "st_cb_accum.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_drawpixels.h" 43#include "st_cb_fbo.h" 44#include "st_cb_feedback.h" 45#include "st_cb_program.h" 46#include "st_cb_queryobj.h" 47#include "st_cb_rasterpos.h" 48#include "st_cb_readpixels.h" 49#include "st_cb_texture.h" 50#include "st_cb_flush.h" 51#include "st_cb_strings.h" 52#include "st_atom.h" 53#include "st_draw.h" 54#include "st_extensions.h" 55#include "st_gen_mipmap.h" 56#include "st_program.h" 57#include "pipe/p_context.h" 58#include "pipe/p_winsys.h" 59#include "pipe/p_inlines.h" 60#include "draw/draw_context.h" 61#include "cso_cache/cso_cache.h" 62#include "cso_cache/cso_context.h" 63 64 65/** 66 * Called via ctx->Driver.UpdateState() 67 */ 68void st_invalidate_state(GLcontext * ctx, GLuint new_state) 69{ 70 struct st_context *st = st_context(ctx); 71 72 st->dirty.mesa |= new_state; 73 st->dirty.st |= ST_NEW_MESA; 74 75 /* This is the only core Mesa module we depend upon. 76 * No longer use swrast, swsetup, tnl. 77 */ 78 _vbo_InvalidateState(ctx, new_state); 79} 80 81 82static struct st_context * 83st_create_context_priv( GLcontext *ctx, struct pipe_context *pipe ) 84{ 85 uint i; 86 struct st_context *st = CALLOC_STRUCT( st_context ); 87 88 ctx->st = st; 89 90 st->ctx = ctx; 91 st->pipe = pipe; 92 93 /* state tracker needs the VBO module */ 94 _vbo_CreateContext(ctx); 95 96 st->draw = draw_create(); /* for selection/feedback */ 97 98 /* Disable draw options that might convert points/lines to tris, etc. 99 * as that would foul-up feedback/selection mode. 100 */ 101 draw_wide_line_threshold(st->draw, 1000.0f); 102 draw_wide_point_threshold(st->draw, 1000.0f); 103 draw_enable_line_stipple(st->draw, FALSE); 104 draw_enable_point_sprites(st->draw, FALSE); 105 106 st->dirty.mesa = ~0; 107 st->dirty.st = ~0; 108 109 st->cso_context = cso_create_context(pipe); 110 111 st_init_atoms( st ); 112 st_init_bitmap(st); 113 st_init_clear(st); 114 st_init_draw( st ); 115 st_init_generate_mipmap(st); 116 st_init_blit(st); 117 118 for (i = 0; i < PIPE_MAX_SAMPLERS; i++) 119 st->state.sampler_list[i] = &st->state.samplers[i]; 120 121 /* we want all vertex data to be placed in buffer objects */ 122 vbo_use_buffer_objects(ctx); 123 124 /* Need these flags: 125 */ 126 st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE; 127 st->ctx->FragmentProgram._UseTexEnvProgram = GL_TRUE; 128 129 st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE; 130 131 st->pixel_xfer.cache = _mesa_new_program_cache(); 132 133 /* GL limits and extensions */ 134 st_init_limits(st); 135 st_init_extensions(st); 136 137 return st; 138} 139 140 141struct st_context *st_create_context(struct pipe_context *pipe, 142 const __GLcontextModes *visual, 143 struct st_context *share) 144{ 145 GLcontext *ctx; 146 GLcontext *shareCtx = share ? share->ctx : NULL; 147 struct dd_function_table funcs; 148 149 memset(&funcs, 0, sizeof(funcs)); 150 st_init_driver_functions(&funcs); 151 152 ctx = _mesa_create_context(visual, shareCtx, &funcs, NULL); 153 154 return st_create_context_priv(ctx, pipe); 155} 156 157 158static void st_destroy_context_priv( struct st_context *st ) 159{ 160 struct pipe_winsys *ws = st->pipe->winsys; 161 uint i; 162 163 draw_destroy(st->draw); 164 st_destroy_atoms( st ); 165 st_destroy_draw( st ); 166 st_destroy_generate_mipmap(st); 167 st_destroy_bitmap(st); 168 st_destroy_blit(st); 169 st_destroy_clear(st); 170 171 _vbo_DestroyContext(st->ctx); 172 173 for (i = 0; i < Elements(st->state.constants); i++) { 174 if (st->state.constants[i].buffer) { 175 pipe_buffer_reference(ws, &st->state.constants[i].buffer, NULL); 176 } 177 } 178 179 st->pipe->destroy( st->pipe ); 180 free( st ); 181} 182 183 184void st_destroy_context( struct st_context *st ) 185{ 186 GLcontext *ctx = st->ctx; 187 188 /* need to unbind and destroy CSO objects before anything else */ 189 cso_destroy_context(st->cso_context); 190 191 _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache); 192 193 _mesa_free_context_data(ctx); 194 st_destroy_context_priv(st); 195 free(ctx); 196} 197 198 199void st_make_current(struct st_context *st, 200 struct st_framebuffer *draw, 201 struct st_framebuffer *read) 202{ 203 if (st) { 204 GLboolean firstTime = st->ctx->FirstTimeCurrent; 205 _mesa_make_current(st->ctx, &draw->Base, &read->Base); 206 /* Need to initialize viewport here since draw->Base->Width/Height 207 * will still be zero at this point. 208 * This could be improved, but would require rather extensive work 209 * elsewhere (allocate rb surface storage sooner) 210 */ 211 if (firstTime) { 212 GLuint w = draw->InitWidth, h = draw->InitHeight; 213 _mesa_set_viewport(st->ctx, 0, 0, w, h); 214 _mesa_set_scissor(st->ctx, 0, 0, w, h); 215 216 } 217 } 218 else { 219 _mesa_make_current(NULL, NULL, NULL); 220 } 221} 222 223 224void st_copy_context_state(struct st_context *dst, 225 struct st_context *src, 226 uint mask) 227{ 228 _mesa_copy_context(dst->ctx, src->ctx, mask); 229} 230 231 232void st_init_driver_functions(struct dd_function_table *functions) 233{ 234 _mesa_init_glsl_driver_functions(functions); 235 236 st_init_accum_functions(functions); 237 st_init_bitmap_functions(functions); 238 st_init_blit_functions(functions); 239 st_init_bufferobject_functions(functions); 240 st_init_clear_functions(functions); 241 st_init_drawpixels_functions(functions); 242 st_init_fbo_functions(functions); 243 st_init_feedback_functions(functions); 244 st_init_program_functions(functions); 245 st_init_query_functions(functions); 246 st_init_rasterpos_functions(functions); 247 st_init_readpixels_functions(functions); 248 st_init_texture_functions(functions); 249 st_init_flush_functions(functions); 250 st_init_string_functions(functions); 251 252 functions->UpdateState = st_invalidate_state; 253} 254