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/accum.h"
30 #include "main/api_exec.h"
31 #include "main/context.h"
32 #include "main/samplerobj.h"
33 #include "main/shaderobj.h"
34 #include "main/version.h"
35 #include "main/vtxfmt.h"
36 #include "program/prog_cache.h"
38 #include "glapi/glapi.h"
39 #include "st_context.h"
41 #include "st_cb_bitmap.h"
42 #include "st_cb_blit.h"
43 #include "st_cb_bufferobjects.h"
44 #include "st_cb_clear.h"
45 #include "st_cb_condrender.h"
46 #include "st_cb_drawpixels.h"
47 #include "st_cb_rasterpos.h"
48 #include "st_cb_drawtex.h"
49 #include "st_cb_eglimage.h"
50 #include "st_cb_fbo.h"
51 #include "st_cb_feedback.h"
52 #include "st_cb_program.h"
53 #include "st_cb_queryobj.h"
54 #include "st_cb_readpixels.h"
55 #include "st_cb_texture.h"
56 #include "st_cb_xformfb.h"
57 #include "st_cb_flush.h"
58 #include "st_cb_syncobj.h"
59 #include "st_cb_strings.h"
60 #include "st_cb_texturebarrier.h"
61 #include "st_cb_viewport.h"
64 #include "st_extensions.h"
65 #include "st_gen_mipmap.h"
66 #include "st_program.h"
67 #include "pipe/p_context.h"
68 #include "util/u_inlines.h"
69 #include "util/u_upload_mgr.h"
70 #include "cso_cache/cso_context.h"
73 DEBUG_GET_ONCE_BOOL_OPTION(mesa_mvp_dp4, "MESA_MVP_DP4", FALSE)
77 * Called via ctx->Driver.UpdateState()
79 void st_invalidate_state(struct gl_context * ctx, GLuint new_state)
81 struct st_context *st = st_context(ctx);
83 /* Replace _NEW_FRAG_CLAMP with ST_NEW_FRAGMENT_PROGRAM for the fallback. */
84 if (st->clamp_frag_color_in_shader && (new_state & _NEW_FRAG_CLAMP)) {
85 new_state &= ~_NEW_FRAG_CLAMP;
86 st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
89 /* Update the vertex shader if ctx->Light._ClampVertexColor was changed. */
90 if (st->clamp_vert_color_in_shader && (new_state & _NEW_LIGHT)) {
91 st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
94 st->dirty.mesa |= new_state;
95 st->dirty.st |= ST_NEW_MESA;
97 /* This is the only core Mesa module we depend upon.
98 * No longer use swrast, swsetup, tnl.
100 _vbo_InvalidateState(ctx, new_state);
103 static struct st_context *
104 st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
105 const struct st_config_options *options)
107 struct pipe_screen *screen = pipe->screen;
109 struct st_context *st = ST_CALLOC_STRUCT( st_context );
111 st->options = *options;
118 /* XXX: this is one-off, per-screen init: */
121 /* state tracker needs the VBO module */
122 _vbo_CreateContext(ctx);
127 st->uploader = u_upload_create(st->pipe, 65536, 4, PIPE_BIND_VERTEX_BUFFER);
129 if (!screen->get_param(screen, PIPE_CAP_USER_INDEX_BUFFERS)) {
130 st->indexbuf_uploader = u_upload_create(st->pipe, 128 * 1024, 4,
131 PIPE_BIND_INDEX_BUFFER);
134 if (!screen->get_param(screen, PIPE_CAP_USER_CONSTANT_BUFFERS)) {
136 screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
138 st->constbuf_uploader = u_upload_create(pipe, 128 * 1024, alignment,
139 PIPE_BIND_CONSTANT_BUFFER);
142 st->cso_context = cso_create_context(pipe);
148 st_init_generate_mipmap(st);
151 if(pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
152 st->internal_target = PIPE_TEXTURE_2D;
154 st->internal_target = PIPE_TEXTURE_RECT;
156 /* Vertex element objects used for drawing rectangles for glBitmap,
157 * glDrawPixels, glClear, etc.
159 for (i = 0; i < Elements(st->velems_util_draw); i++) {
160 memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));
161 st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);
162 st->velems_util_draw[i].instance_divisor = 0;
163 st->velems_util_draw[i].vertex_buffer_index =
164 cso_get_aux_vertex_buffer_slot(st->cso_context);
165 st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
168 /* we want all vertex data to be placed in buffer objects */
169 vbo_use_buffer_objects(ctx);
172 /* make sure that no VBOs are left mapped when we're drawing. */
173 vbo_always_unmap_buffers(ctx);
177 st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
179 st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
181 st->pixel_xfer.cache = _mesa_new_program_cache();
183 st->has_stencil_export =
184 screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT);
186 /* GL limits and extensions */
188 st_init_extensions(st);
190 _mesa_compute_version(ctx);
192 _mesa_initialize_exec_table(ctx);
193 _mesa_initialize_vbo_vtxfmt(ctx);
198 static void st_init_driver_flags(struct gl_driver_flags *f)
200 f->NewArray = ST_NEW_VERTEX_ARRAYS;
203 struct st_context *st_create_context(gl_api api, struct pipe_context *pipe,
204 const struct gl_config *visual,
205 struct st_context *share,
206 const struct st_config_options *options)
208 struct gl_context *ctx;
209 struct gl_context *shareCtx = share ? share->ctx : NULL;
210 struct dd_function_table funcs;
213 STATIC_ASSERT(MESA_SHADER_VERTEX == PIPE_SHADER_VERTEX);
214 STATIC_ASSERT(MESA_SHADER_FRAGMENT == PIPE_SHADER_FRAGMENT);
215 STATIC_ASSERT(MESA_SHADER_GEOMETRY == PIPE_SHADER_GEOMETRY);
217 memset(&funcs, 0, sizeof(funcs));
218 st_init_driver_functions(&funcs);
220 ctx = _mesa_create_context(api, visual, shareCtx, &funcs);
225 st_init_driver_flags(&ctx->DriverFlags);
227 /* XXX: need a capability bit in gallium to query if the pipe
228 * driver prefers DP4 or MUL/MAD for vertex transformation.
230 if (debug_get_option_mesa_mvp_dp4())
231 _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
233 return st_create_context_priv(ctx, pipe, options);
237 static void st_destroy_context_priv( struct st_context *st )
241 st_destroy_atoms( st );
242 st_destroy_draw( st );
243 st_destroy_generate_mipmap(st);
245 st_destroy_clear(st);
246 st_destroy_bitmap(st);
247 st_destroy_drawpix(st);
248 st_destroy_drawtex(st);
250 for (shader = 0; shader < Elements(st->state.sampler_views); shader++) {
251 for (i = 0; i < Elements(st->state.sampler_views[0]); i++) {
252 pipe_sampler_view_release(st->pipe,
253 &st->state.sampler_views[shader][i]);
257 if (st->default_texture) {
258 st->ctx->Driver.DeleteTexture(st->ctx, st->default_texture);
259 st->default_texture = NULL;
262 u_upload_destroy(st->uploader);
263 if (st->indexbuf_uploader) {
264 u_upload_destroy(st->indexbuf_uploader);
266 if (st->constbuf_uploader) {
267 u_upload_destroy(st->constbuf_uploader);
273 void st_destroy_context( struct st_context *st )
275 struct pipe_context *pipe = st->pipe;
276 struct cso_context *cso = st->cso_context;
277 struct gl_context *ctx = st->ctx;
280 /* need to unbind and destroy CSO objects before anything else */
281 cso_release_all(st->cso_context);
283 st_reference_fragprog(st, &st->fp, NULL);
284 st_reference_vertprog(st, &st->vp, NULL);
286 /* release framebuffer surfaces */
287 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
288 pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);
290 pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);
292 pipe->set_index_buffer(pipe, NULL);
294 for (i = 0; i < PIPE_SHADER_TYPES; i++) {
295 pipe->set_constant_buffer(pipe, i, 0, NULL);
298 _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
300 _vbo_DestroyContext(st->ctx);
302 st_destroy_program_variants(st);
304 _mesa_free_context_data(ctx);
306 /* This will free the st_context too, so 'st' must not be accessed
308 st_destroy_context_priv(st);
311 cso_destroy_context(cso);
313 pipe->destroy( pipe );
319 void st_init_driver_functions(struct dd_function_table *functions)
321 _mesa_init_shader_object_functions(functions);
322 _mesa_init_sampler_object_functions(functions);
324 functions->Accum = _mesa_accum;
326 st_init_blit_functions(functions);
327 st_init_bufferobject_functions(functions);
328 st_init_clear_functions(functions);
329 st_init_bitmap_functions(functions);
330 st_init_drawpixels_functions(functions);
331 st_init_rasterpos_functions(functions);
333 st_init_drawtex_functions(functions);
335 st_init_eglimage_functions(functions);
337 st_init_fbo_functions(functions);
338 st_init_feedback_functions(functions);
339 st_init_program_functions(functions);
340 st_init_query_functions(functions);
341 st_init_cond_render_functions(functions);
342 st_init_readpixels_functions(functions);
343 st_init_texture_functions(functions);
344 st_init_texture_barrier_functions(functions);
345 st_init_flush_functions(functions);
346 st_init_string_functions(functions);
347 st_init_viewport_functions(functions);
349 st_init_xformfb_functions(functions);
350 st_init_syncobj_functions(functions);
352 functions->UpdateState = st_invalidate_state;