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(struct gl_context * 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( struct gl_context *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 if(pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
129 st->internal_target = PIPE_TEXTURE_2D;
131 st->internal_target = PIPE_TEXTURE_RECT;
133 for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
134 st->state.sampler_list[i] = &st->state.samplers[i];
136 for (i = 0; i < 3; i++) {
137 memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));
138 st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);
139 st->velems_util_draw[i].instance_divisor = 0;
140 st->velems_util_draw[i].vertex_buffer_index = 0;
141 st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
144 /* we want all vertex data to be placed in buffer objects */
145 vbo_use_buffer_objects(ctx);
149 st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
151 st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
153 st->pixel_xfer.cache = _mesa_new_program_cache();
155 st->force_msaa = st_get_msaa();
157 /* GL limits and extensions */
159 st_init_extensions(st);
165 struct st_context *st_create_context(gl_api api, struct pipe_context *pipe,
166 const struct gl_config *visual,
167 struct st_context *share)
169 struct gl_context *ctx;
170 struct gl_context *shareCtx = share ? share->ctx : NULL;
171 struct dd_function_table funcs;
174 assert(MESA_SHADER_VERTEX == PIPE_SHADER_VERTEX);
175 assert(MESA_SHADER_FRAGMENT == PIPE_SHADER_FRAGMENT);
176 assert(MESA_SHADER_GEOMETRY == PIPE_SHADER_GEOMETRY);
178 memset(&funcs, 0, sizeof(funcs));
179 st_init_driver_functions(&funcs);
181 ctx = _mesa_create_context_for_api(api, visual, shareCtx, &funcs, NULL);
183 /* XXX: need a capability bit in gallium to query if the pipe
184 * driver prefers DP4 or MUL/MAD for vertex transformation.
186 if (debug_get_option_mesa_mvp_dp4())
187 _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
189 return st_create_context_priv(ctx, pipe);
193 static void st_destroy_context_priv( struct st_context *st )
197 st_destroy_atoms( st );
198 st_destroy_draw( st );
199 st_destroy_generate_mipmap(st);
201 st_destroy_clear(st);
202 st_destroy_bitmap(st);
203 st_destroy_drawpix(st);
204 st_destroy_drawtex(st);
206 for (i = 0; i < Elements(st->state.sampler_views); i++) {
207 pipe_sampler_view_reference(&st->state.sampler_views[i], NULL);
210 if (st->default_texture) {
211 st->ctx->Driver.DeleteTexture(st->ctx, st->default_texture);
212 st->default_texture = NULL;
219 void st_destroy_context( struct st_context *st )
221 struct pipe_context *pipe = st->pipe;
222 struct cso_context *cso = st->cso_context;
223 struct gl_context *ctx = st->ctx;
226 /* need to unbind and destroy CSO objects before anything else */
227 cso_release_all(st->cso_context);
229 st_reference_fragprog(st, &st->fp, NULL);
230 st_reference_vertprog(st, &st->vp, NULL);
232 /* release framebuffer surfaces */
233 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
234 pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);
236 pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);
238 pipe->set_index_buffer(pipe, NULL);
240 for (i = 0; i < PIPE_SHADER_TYPES; i++) {
241 pipe->set_constant_buffer(pipe, i, 0, NULL);
244 _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
246 _vbo_DestroyContext(st->ctx);
248 st_destroy_program_variants(st);
250 _mesa_free_context_data(ctx);
252 st_destroy_context_priv(st);
254 cso_destroy_context(cso);
256 pipe->destroy( pipe );
262 void st_init_driver_functions(struct dd_function_table *functions)
264 _mesa_init_shader_object_functions(functions);
266 st_init_accum_functions(functions);
267 st_init_blit_functions(functions);
268 st_init_bufferobject_functions(functions);
269 st_init_clear_functions(functions);
270 st_init_bitmap_functions(functions);
271 st_init_drawpixels_functions(functions);
272 st_init_rasterpos_functions(functions);
274 st_init_drawtex_functions(functions);
276 st_init_eglimage_functions(functions);
278 st_init_fbo_functions(functions);
279 st_init_feedback_functions(functions);
280 st_init_program_functions(functions);
281 st_init_query_functions(functions);
282 st_init_cond_render_functions(functions);
283 st_init_readpixels_functions(functions);
284 st_init_texture_functions(functions);
285 st_init_flush_functions(functions);
286 st_init_string_functions(functions);
287 st_init_viewport_functions(functions);
289 st_init_xformfb_functions(functions);
291 functions->UpdateState = st_invalidate_state;