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"
31 #include "shader/shader_api.h"
32 #include "glapi/glapi.h"
33 #include "st_context.h"
35 #include "st_cb_accum.h"
36 #include "st_cb_bitmap.h"
37 #include "st_cb_blit.h"
38 #include "st_cb_bufferobjects.h"
39 #include "st_cb_clear.h"
40 #include "st_cb_condrender.h"
42 #include "st_cb_drawpixels.h"
43 #include "st_cb_rasterpos.h"
45 #if FEATURE_OES_draw_texture
46 #include "st_cb_drawtex.h"
48 #include "st_cb_eglimage.h"
49 #include "st_cb_fbo.h"
51 #include "st_cb_feedback.h"
53 #include "st_cb_program.h"
54 #include "st_cb_queryobj.h"
55 #include "st_cb_readpixels.h"
56 #include "st_cb_texture.h"
57 #include "st_cb_flush.h"
58 #include "st_cb_strings.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_rect.h"
67 #include "draw/draw_context.h"
68 #include "cso_cache/cso_context.h"
72 * Called via ctx->Driver.UpdateState()
74 void st_invalidate_state(GLcontext * ctx, GLuint new_state)
76 struct st_context *st = st_context(ctx);
78 st->dirty.mesa |= new_state;
79 st->dirty.st |= ST_NEW_MESA;
81 /* This is the only core Mesa module we depend upon.
82 * No longer use swrast, swsetup, tnl.
84 _vbo_InvalidateState(ctx, new_state);
89 * Check for multisample env var override.
94 const char *msaa = _mesa_getenv("__GL_FSAA_MODE");
101 /** Default method for pipe_context::surface_copy() */
103 st_surface_copy(struct pipe_context *pipe,
104 struct pipe_surface *dst,
105 unsigned dst_x, unsigned dst_y,
106 struct pipe_surface *src,
107 unsigned src_x, unsigned src_y,
108 unsigned w, unsigned h)
110 util_surface_copy(pipe, FALSE, dst, dst_x, dst_y, src, src_x, src_y, w, h);
114 static struct st_context *
115 st_create_context_priv( GLcontext *ctx, struct pipe_context *pipe )
118 struct st_context *st = ST_CALLOC_STRUCT( st_context );
125 /* XXX: this is one-off, per-screen init: */
128 /* state tracker needs the VBO module */
129 _vbo_CreateContext(ctx);
131 #if FEATURE_feedback || FEATURE_drawpix
132 st->draw = draw_create(pipe); /* for selection/feedback */
134 /* Disable draw options that might convert points/lines to tris, etc.
135 * as that would foul-up feedback/selection mode.
137 draw_wide_line_threshold(st->draw, 1000.0f);
138 draw_wide_point_threshold(st->draw, 1000.0f);
139 draw_enable_line_stipple(st->draw, FALSE);
140 draw_enable_point_sprites(st->draw, FALSE);
146 st->cso_context = cso_create_context(pipe);
152 st_init_generate_mipmap(st);
155 for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
156 st->state.sampler_list[i] = &st->state.samplers[i];
158 for (i = 0; i < 3; i++) {
159 memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));
160 st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);
161 st->velems_util_draw[i].instance_divisor = 0;
162 st->velems_util_draw[i].vertex_buffer_index = 0;
163 st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
166 /* we want all vertex data to be placed in buffer objects */
167 vbo_use_buffer_objects(ctx);
171 st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
173 st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
175 st->pixel_xfer.cache = _mesa_new_program_cache();
177 st->force_msaa = st_get_msaa();
179 /* GL limits and extensions */
181 st_init_extensions(st);
183 /* plug in helper driver functions if needed */
184 if (!pipe->surface_copy)
185 pipe->surface_copy = st_surface_copy;
191 struct st_context *st_create_context(struct pipe_context *pipe,
192 const __GLcontextModes *visual,
193 struct st_context *share)
196 GLcontext *shareCtx = share ? share->ctx : NULL;
197 struct dd_function_table funcs;
199 memset(&funcs, 0, sizeof(funcs));
200 st_init_driver_functions(&funcs);
202 ctx = _mesa_create_context(visual, shareCtx, &funcs, NULL);
204 /* XXX: need a capability bit in gallium to query if the pipe
205 * driver prefers DP4 or MUL/MAD for vertex transformation.
207 if (debug_get_bool_option("MESA_MVP_DP4", FALSE))
208 _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
210 return st_create_context_priv(ctx, pipe);
214 static void st_destroy_context_priv( struct st_context *st )
218 #if FEATURE_feedback || FEATURE_drawpix
219 draw_destroy(st->draw);
221 st_destroy_atoms( st );
222 st_destroy_draw( st );
223 st_destroy_generate_mipmap(st);
224 #if FEATURE_EXT_framebuffer_blit
227 st_destroy_clear(st);
229 st_destroy_bitmap(st);
230 st_destroy_drawpix(st);
232 #if FEATURE_OES_draw_texture
233 st_destroy_drawtex(st);
236 for (i = 0; i < Elements(st->state.sampler_views); i++) {
237 pipe_sampler_view_reference(&st->state.sampler_views[i], NULL);
240 for (i = 0; i < Elements(st->state.constants); i++) {
241 if (st->state.constants[i]) {
242 pipe_resource_reference(&st->state.constants[i], NULL);
246 if (st->default_texture) {
247 st->ctx->Driver.DeleteTexture(st->ctx, st->default_texture);
248 st->default_texture = NULL;
255 void st_destroy_context( struct st_context *st )
257 struct pipe_context *pipe = st->pipe;
258 struct cso_context *cso = st->cso_context;
259 GLcontext *ctx = st->ctx;
262 /* need to unbind and destroy CSO objects before anything else */
263 cso_release_all(st->cso_context);
265 st_reference_fragprog(st, &st->fp, NULL);
266 st_reference_vertprog(st, &st->vp, NULL);
268 /* release framebuffer surfaces */
269 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
270 pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);
272 pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);
274 _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
276 _vbo_DestroyContext(st->ctx);
278 _mesa_free_context_data(ctx);
280 st_destroy_context_priv(st);
282 cso_destroy_context(cso);
284 pipe->destroy( pipe );
290 void st_init_driver_functions(struct dd_function_table *functions)
292 _mesa_init_glsl_driver_functions(functions);
295 st_init_accum_functions(functions);
297 #if FEATURE_EXT_framebuffer_blit
298 st_init_blit_functions(functions);
300 st_init_bufferobject_functions(functions);
301 st_init_clear_functions(functions);
303 st_init_bitmap_functions(functions);
304 st_init_drawpixels_functions(functions);
305 st_init_rasterpos_functions(functions);
308 #if FEATURE_OES_draw_texture
309 st_init_drawtex_functions(functions);
312 st_init_eglimage_functions(functions);
314 st_init_fbo_functions(functions);
316 st_init_feedback_functions(functions);
318 st_init_program_functions(functions);
320 st_init_query_functions(functions);
322 st_init_cond_render_functions(functions);
323 st_init_readpixels_functions(functions);
324 st_init_texture_functions(functions);
325 st_init_flush_functions(functions);
326 st_init_string_functions(functions);
328 functions->UpdateState = st_invalidate_state;