1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #include "main/imports.h"
29 #include "main/context.h"
30 #include "main/shaderobj.h"
31 #include "program/prog_cache.h"
33 #include "glapi/glapi.h"
34 #include "st_context.h"
36 #include "st_cb_accum.h"
37 #include "st_cb_bitmap.h"
38 #include "st_cb_blit.h"
39 #include "st_cb_bufferobjects.h"
40 #include "st_cb_clear.h"
41 #include "st_cb_condrender.h"
42 #include "st_cb_drawpixels.h"
43 #include "st_cb_rasterpos.h"
44 #include "st_cb_drawtex.h"
45 #include "st_cb_eglimage.h"
46 #include "st_cb_fbo.h"
47 #include "st_cb_feedback.h"
48 #include "st_cb_program.h"
49 #include "st_cb_queryobj.h"
50 #include "st_cb_readpixels.h"
51 #include "st_cb_texture.h"
52 #include "st_cb_xformfb.h"
53 #include "st_cb_flush.h"
54 #include "st_cb_strings.h"
55 #include "st_cb_viewport.h"
58 #include "st_extensions.h"
59 #include "st_gen_mipmap.h"
60 #include "st_program.h"
61 #include "pipe/p_context.h"
62 #include "util/u_inlines.h"
63 #include "cso_cache/cso_context.h"
66 DEBUG_GET_ONCE_BOOL_OPTION(mesa_mvp_dp4, "MESA_MVP_DP4", FALSE)
70 * Called via ctx->Driver.UpdateState()
72 void st_invalidate_state(GLcontext * ctx, GLuint new_state)
74 struct st_context *st = st_context(ctx);
76 st->dirty.mesa |= new_state;
77 st->dirty.st |= ST_NEW_MESA;
79 /* This is the only core Mesa module we depend upon.
80 * No longer use swrast, swsetup, tnl.
82 _vbo_InvalidateState(ctx, new_state);
87 * Check for multisample env var override.
92 const char *msaa = _mesa_getenv("__GL_FSAA_MODE");
99 static struct st_context *
100 st_create_context_priv( GLcontext *ctx, struct pipe_context *pipe )
103 struct st_context *st = ST_CALLOC_STRUCT( st_context );
110 /* XXX: this is one-off, per-screen init: */
113 /* state tracker needs the VBO module */
114 _vbo_CreateContext(ctx);
119 st->cso_context = cso_create_context(pipe);
125 st_init_generate_mipmap(st);
128 for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
129 st->state.sampler_list[i] = &st->state.samplers[i];
131 for (i = 0; i < 3; i++) {
132 memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));
133 st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);
134 st->velems_util_draw[i].instance_divisor = 0;
135 st->velems_util_draw[i].vertex_buffer_index = 0;
136 st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
139 /* we want all vertex data to be placed in buffer objects */
140 vbo_use_buffer_objects(ctx);
144 st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
146 st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
148 st->pixel_xfer.cache = _mesa_new_program_cache();
150 st->force_msaa = st_get_msaa();
152 /* GL limits and extensions */
154 st_init_extensions(st);
160 struct st_context *st_create_context(gl_api api, struct pipe_context *pipe,
161 const __GLcontextModes *visual,
162 struct st_context *share)
165 GLcontext *shareCtx = share ? share->ctx : NULL;
166 struct dd_function_table funcs;
168 memset(&funcs, 0, sizeof(funcs));
169 st_init_driver_functions(&funcs);
171 ctx = _mesa_create_context_for_api(api, visual, shareCtx, &funcs, NULL);
173 /* XXX: need a capability bit in gallium to query if the pipe
174 * driver prefers DP4 or MUL/MAD for vertex transformation.
176 if (debug_get_option_mesa_mvp_dp4())
177 _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
179 return st_create_context_priv(ctx, pipe);
183 static void st_destroy_context_priv( struct st_context *st )
187 st_destroy_atoms( st );
188 st_destroy_draw( st );
189 st_destroy_generate_mipmap(st);
191 st_destroy_clear(st);
192 st_destroy_bitmap(st);
193 st_destroy_drawpix(st);
194 st_destroy_drawtex(st);
196 for (i = 0; i < Elements(st->state.sampler_views); i++) {
197 pipe_sampler_view_reference(&st->state.sampler_views[i], NULL);
200 for (i = 0; i < Elements(st->state.constants); i++) {
201 if (st->state.constants[i]) {
202 pipe_resource_reference(&st->state.constants[i], NULL);
206 if (st->default_texture) {
207 st->ctx->Driver.DeleteTexture(st->ctx, st->default_texture);
208 st->default_texture = NULL;
215 void st_destroy_context( struct st_context *st )
217 struct pipe_context *pipe = st->pipe;
218 struct cso_context *cso = st->cso_context;
219 GLcontext *ctx = st->ctx;
222 /* need to unbind and destroy CSO objects before anything else */
223 cso_release_all(st->cso_context);
225 st_reference_fragprog(st, &st->fp, NULL);
226 st_reference_vertprog(st, &st->vp, NULL);
228 /* release framebuffer surfaces */
229 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
230 pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);
232 pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);
234 _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
236 _vbo_DestroyContext(st->ctx);
238 _mesa_free_context_data(ctx);
240 st_destroy_context_priv(st);
242 cso_destroy_context(cso);
244 pipe->destroy( pipe );
250 void st_init_driver_functions(struct dd_function_table *functions)
252 _mesa_init_shader_object_functions(functions);
254 st_init_accum_functions(functions);
255 st_init_blit_functions(functions);
256 st_init_bufferobject_functions(functions);
257 st_init_clear_functions(functions);
258 st_init_bitmap_functions(functions);
259 st_init_drawpixels_functions(functions);
260 st_init_rasterpos_functions(functions);
262 st_init_drawtex_functions(functions);
264 st_init_eglimage_functions(functions);
266 st_init_fbo_functions(functions);
267 st_init_feedback_functions(functions);
268 st_init_program_functions(functions);
269 st_init_query_functions(functions);
270 st_init_cond_render_functions(functions);
271 st_init_readpixels_functions(functions);
272 st_init_texture_functions(functions);
273 st_init_flush_functions(functions);
274 st_init_string_functions(functions);
275 st_init_viewport_functions(functions);
277 st_init_xformfb_functions(functions);
279 functions->UpdateState = st_invalidate_state;