src/mesa/state_tracker/st_context.c

   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 "vbo/vbo.h"
  32 #include "shader/shader_api.h"
  33 #include "st_public.h"
  34 #include "st_context.h"
  35 #include "st_cb_accum.h"
  36 #include "st_cb_bufferobjects.h"
  37 #include "st_cb_clear.h"
  38 #include "st_cb_drawpixels.h"
  39 #include "st_cb_fbo.h"
  40 #include "st_cb_feedback.h"
  41 #include "st_cb_queryobj.h"
  42 #include "st_cb_rasterpos.h"
  43 #include "st_cb_readpixels.h"
  44 #include "st_cb_texture.h"
  45 #include "st_cb_flush.h"
  46 #include "st_cb_strings.h"
  47 #include "st_atom.h"
  48 #include "st_draw.h"
  49 #include "st_extensions.h"
  50 #include "st_program.h"
  51 #include "pipe/p_context.h"
  52 #include "pipe/draw/draw_context.h"
  53 #include "pipe/cso_cache/cso_cache.h"
  54
  55
  56 /**
  57  * Called via ctx->Driver.UpdateState()
  58  */
  59 void st_invalidate_state(GLcontext * ctx, GLuint new_state)
  60 {
  61    struct st_context *st = st_context(ctx);
  62
  63    st->dirty.mesa |= new_state;
  64    st->dirty.st |= ST_NEW_MESA;
  65
  66    /* This is the only core Mesa module we depend upon.
  67     * No longer use swrast, swsetup, tnl.
  68     */
  69    _vbo_InvalidateState(ctx, new_state);
  70 }
  71
  72
  73 static struct st_context *
  74 st_create_context_priv( GLcontext *ctx, struct pipe_context *pipe )
  75 {
  76    struct st_context *st = CALLOC_STRUCT( st_context );
  77
  78    ctx->st = st;
  79
  80    st->ctx = ctx;
  81    st->pipe = pipe;
  82
  83    /* state tracker needs the VBO module */
  84    _vbo_CreateContext(ctx);
  85
  86    st->draw = draw_create(); /* for selection/feedback */
  87
  88    st->dirty.mesa = ~0;
  89    st->dirty.st = ~0;
  90
  91    st->cache = cso_cache_create();
  92
  93    st_init_atoms( st );
  94    st_init_draw( st );
  95
  96    /* we want all vertex data to be placed in buffer objects */
  97    vbo_use_buffer_objects(ctx);
  98
  99    /* Need these flags:
 100     */
 101    st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 102    st->ctx->FragmentProgram._UseTexEnvProgram = GL_TRUE;
 103
 104    st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 105
 106    st->haveFramebufferSurfaces = GL_TRUE;
 107
 108    st->pixel_xfer.cache = _mesa_new_program_cache();
 109
 110    /* GL limits and extensions */
 111    st_init_limits(st);
 112    st_init_extensions(st);
 113
 114    return st;
 115 }
 116
 117
 118 struct st_context *st_create_context(struct pipe_context *pipe,
 119                                      const __GLcontextModes *visual,
 120                                      struct st_context *share)
 121 {
 122    GLcontext *ctx;
 123    GLcontext *shareCtx = share ? share->ctx : NULL;
 124    struct dd_function_table funcs;
 125
 126    memset(&funcs, 0, sizeof(funcs));
 127    st_init_driver_functions(&funcs);
 128
 129    ctx = _mesa_create_context(visual, shareCtx, &funcs, NULL);
 130
 131    return st_create_context_priv(ctx, pipe);
 132 }
 133
 134
 135 static void st_destroy_context_priv( struct st_context *st )
 136 {
 137    draw_destroy(st->draw);
 138    st_destroy_atoms( st );
 139    st_destroy_draw( st );
 140
 141    _vbo_DestroyContext(st->ctx);
 142
 143    cso_cache_delete( st->cache );
 144
 145    _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
 146
 147    st->pipe->destroy( st->pipe );
 148    free( st );
 149 }
 150
 151
 152 void st_destroy_context( struct st_context *st )
 153 {
 154    GLcontext *ctx = st->ctx;
 155    _mesa_free_context_data(ctx);
 156    st_destroy_context_priv(st);
 157    free(ctx);
 158 }
 159
 160
 161 void st_make_current(struct st_context *st,
 162                      struct st_framebuffer *draw,
 163                      struct st_framebuffer *read)
 164 {
 165    if (st) {
 166       _mesa_make_current(st->ctx, &draw->Base, &read->Base);
 167    }
 168    else {
 169       _mesa_make_current(NULL, NULL, NULL);
 170    }
 171 }
 172
 173
 174 void st_copy_context_state(struct st_context *dst,
 175                            struct st_context *src,
 176                            uint mask)
 177 {
 178    _mesa_copy_context(dst->ctx, src->ctx, mask);
 179 }
 180
 181
 182 void st_init_driver_functions(struct dd_function_table *functions)
 183 {
 184    _mesa_init_glsl_driver_functions(functions);
 185
 186    st_init_accum_functions(functions);
 187    st_init_bufferobject_functions(functions);
 188    st_init_clear_functions(functions);
 189    st_init_drawpixels_functions(functions);
 190    st_init_fbo_functions(functions);
 191    st_init_feedback_functions(functions);
 192    st_init_program_functions(functions);
 193    st_init_query_functions(functions);
 194    st_init_rasterpos_functions(functions);
 195    st_init_readpixels_functions(functions);
 196    st_init_texture_functions(functions);
 197    st_init_flush_functions(functions);
 198    st_init_string_functions(functions);
 199
 200    functions->UpdateState = st_invalidate_state;
 201 }