st/mesa: convert the ETC1 format to an uncompressed one if unsupported
[mesa.git] / src / mesa / state_tracker / st_context.c
1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
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 VMWARE 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/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 "main/hash.h"
37 #include "program/prog_cache.h"
38 #include "vbo/vbo.h"
39 #include "glapi/glapi.h"
40 #include "st_context.h"
41 #include "st_debug.h"
42 #include "st_cb_bitmap.h"
43 #include "st_cb_blit.h"
44 #include "st_cb_bufferobjects.h"
45 #include "st_cb_clear.h"
46 #include "st_cb_condrender.h"
47 #include "st_cb_drawpixels.h"
48 #include "st_cb_rasterpos.h"
49 #include "st_cb_drawtex.h"
50 #include "st_cb_eglimage.h"
51 #include "st_cb_fbo.h"
52 #include "st_cb_feedback.h"
53 #include "st_cb_msaa.h"
54 #include "st_cb_program.h"
55 #include "st_cb_queryobj.h"
56 #include "st_cb_readpixels.h"
57 #include "st_cb_texture.h"
58 #include "st_cb_xformfb.h"
59 #include "st_cb_flush.h"
60 #include "st_cb_syncobj.h"
61 #include "st_cb_strings.h"
62 #include "st_cb_texturebarrier.h"
63 #include "st_cb_viewport.h"
64 #include "st_atom.h"
65 #include "st_draw.h"
66 #include "st_extensions.h"
67 #include "st_gen_mipmap.h"
68 #include "st_program.h"
69 #include "st_vdpau.h"
70 #include "st_texture.h"
71 #include "pipe/p_context.h"
72 #include "util/u_inlines.h"
73 #include "util/u_upload_mgr.h"
74 #include "cso_cache/cso_context.h"
75
76
77 DEBUG_GET_ONCE_BOOL_OPTION(mesa_mvp_dp4, "MESA_MVP_DP4", FALSE)
78
79
80 /**
81 * Called via ctx->Driver.UpdateState()
82 */
83 void st_invalidate_state(struct gl_context * ctx, GLuint new_state)
84 {
85 struct st_context *st = st_context(ctx);
86
87 /* Replace _NEW_FRAG_CLAMP with ST_NEW_FRAGMENT_PROGRAM for the fallback. */
88 if (st->clamp_frag_color_in_shader && (new_state & _NEW_FRAG_CLAMP)) {
89 new_state &= ~_NEW_FRAG_CLAMP;
90 st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
91 }
92
93 /* Update the vertex shader if ctx->Light._ClampVertexColor was changed. */
94 if (st->clamp_vert_color_in_shader && (new_state & _NEW_LIGHT)) {
95 st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
96 }
97
98 st->dirty.mesa |= new_state;
99 st->dirty.st |= ST_NEW_MESA;
100
101 /* This is the only core Mesa module we depend upon.
102 * No longer use swrast, swsetup, tnl.
103 */
104 _vbo_InvalidateState(ctx, new_state);
105 }
106
107 static struct st_context *
108 st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
109 const struct st_config_options *options)
110 {
111 struct pipe_screen *screen = pipe->screen;
112 uint i;
113 struct st_context *st = ST_CALLOC_STRUCT( st_context );
114
115 st->options = *options;
116
117 ctx->st = st;
118
119 st->ctx = ctx;
120 st->pipe = pipe;
121
122 /* XXX: this is one-off, per-screen init: */
123 st_debug_init();
124
125 /* state tracker needs the VBO module */
126 _vbo_CreateContext(ctx);
127
128 st->dirty.mesa = ~0;
129 st->dirty.st = ~0;
130
131 /* Create upload manager for vertex data for glBitmap, glDrawPixels,
132 * glClear, etc.
133 */
134 st->uploader = u_upload_create(st->pipe, 65536, 4, PIPE_BIND_VERTEX_BUFFER);
135
136 if (!screen->get_param(screen, PIPE_CAP_USER_INDEX_BUFFERS)) {
137 st->indexbuf_uploader = u_upload_create(st->pipe, 128 * 1024, 4,
138 PIPE_BIND_INDEX_BUFFER);
139 }
140
141 if (!screen->get_param(screen, PIPE_CAP_USER_CONSTANT_BUFFERS)) {
142 unsigned alignment =
143 screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
144
145 st->constbuf_uploader = u_upload_create(pipe, 128 * 1024, alignment,
146 PIPE_BIND_CONSTANT_BUFFER);
147 }
148
149 st->cso_context = cso_create_context(pipe);
150
151 st_init_atoms( st );
152 st_init_bitmap(st);
153 st_init_clear(st);
154 st_init_draw( st );
155
156 /* Choose texture target for glDrawPixels, glBitmap, renderbuffers */
157 if (pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
158 st->internal_target = PIPE_TEXTURE_2D;
159 else
160 st->internal_target = PIPE_TEXTURE_RECT;
161
162 /* Vertex element objects used for drawing rectangles for glBitmap,
163 * glDrawPixels, glClear, etc.
164 */
165 for (i = 0; i < Elements(st->velems_util_draw); i++) {
166 memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));
167 st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);
168 st->velems_util_draw[i].instance_divisor = 0;
169 st->velems_util_draw[i].vertex_buffer_index =
170 cso_get_aux_vertex_buffer_slot(st->cso_context);
171 st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
172 }
173
174 /* we want all vertex data to be placed in buffer objects */
175 vbo_use_buffer_objects(ctx);
176
177
178 /* make sure that no VBOs are left mapped when we're drawing. */
179 vbo_always_unmap_buffers(ctx);
180
181 /* Need these flags:
182 */
183 st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
184
185 st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
186
187 st->pixel_xfer.cache = _mesa_new_program_cache();
188
189 st->has_stencil_export =
190 screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT);
191 st->has_shader_model3 = screen->get_param(screen, PIPE_CAP_SM3);
192 st->has_etc1 = screen->is_format_supported(screen, PIPE_FORMAT_ETC1_RGB8,
193 PIPE_TEXTURE_2D, 0,
194 PIPE_BIND_SAMPLER_VIEW);
195 st->prefer_blit_based_texture_transfer = screen->get_param(screen,
196 PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER);
197
198 st->needs_texcoord_semantic =
199 screen->get_param(screen, PIPE_CAP_TGSI_TEXCOORD);
200 st->apply_texture_swizzle_to_border_color =
201 !!(screen->get_param(screen, PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK) &
202 (PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 |
203 PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600));
204
205 /* GL limits and extensions */
206 st_init_limits(st);
207 st_init_extensions(st);
208
209 _mesa_compute_version(ctx);
210
211 _mesa_initialize_dispatch_tables(ctx);
212 _mesa_initialize_vbo_vtxfmt(ctx);
213
214 return st;
215 }
216
217 static void st_init_driver_flags(struct gl_driver_flags *f)
218 {
219 f->NewArray = ST_NEW_VERTEX_ARRAYS;
220 f->NewRasterizerDiscard = ST_NEW_RASTERIZER;
221 f->NewUniformBuffer = ST_NEW_UNIFORM_BUFFER;
222 }
223
224 struct st_context *st_create_context(gl_api api, struct pipe_context *pipe,
225 const struct gl_config *visual,
226 struct st_context *share,
227 const struct st_config_options *options)
228 {
229 struct gl_context *ctx;
230 struct gl_context *shareCtx = share ? share->ctx : NULL;
231 struct dd_function_table funcs;
232
233 memset(&funcs, 0, sizeof(funcs));
234 st_init_driver_functions(&funcs);
235
236 ctx = _mesa_create_context(api, visual, shareCtx, &funcs);
237 if (!ctx) {
238 return NULL;
239 }
240
241 st_init_driver_flags(&ctx->DriverFlags);
242
243 /* XXX: need a capability bit in gallium to query if the pipe
244 * driver prefers DP4 or MUL/MAD for vertex transformation.
245 */
246 if (debug_get_option_mesa_mvp_dp4())
247 ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = GL_TRUE;
248
249 return st_create_context_priv(ctx, pipe, options);
250 }
251
252
253 static void st_destroy_context_priv( struct st_context *st )
254 {
255 uint shader, i;
256
257 st_destroy_atoms( st );
258 st_destroy_draw( st );
259 st_destroy_clear(st);
260 st_destroy_bitmap(st);
261 st_destroy_drawpix(st);
262 st_destroy_drawtex(st);
263
264 for (shader = 0; shader < Elements(st->state.sampler_views); shader++) {
265 for (i = 0; i < Elements(st->state.sampler_views[0]); i++) {
266 pipe_sampler_view_release(st->pipe,
267 &st->state.sampler_views[shader][i]);
268 }
269 }
270
271 if (st->default_texture) {
272 st->ctx->Driver.DeleteTexture(st->ctx, st->default_texture);
273 st->default_texture = NULL;
274 }
275
276 u_upload_destroy(st->uploader);
277 if (st->indexbuf_uploader) {
278 u_upload_destroy(st->indexbuf_uploader);
279 }
280 if (st->constbuf_uploader) {
281 u_upload_destroy(st->constbuf_uploader);
282 }
283 free( st );
284 }
285
286
287 /**
288 * Callback to release the sampler view attached to a texture object.
289 * Called by _mesa_HashWalk().
290 */
291 static void
292 destroy_tex_sampler_cb(GLuint id, void *data, void *userData)
293 {
294 struct gl_texture_object *texObj = (struct gl_texture_object *) data;
295 struct st_context *st = (struct st_context *) userData;
296
297 st_texture_release_sampler_view(st, st_texture_object(texObj));
298 }
299
300 void st_destroy_context( struct st_context *st )
301 {
302 struct pipe_context *pipe = st->pipe;
303 struct cso_context *cso = st->cso_context;
304 struct gl_context *ctx = st->ctx;
305 GLuint i;
306
307 _mesa_HashWalk(ctx->Shared->TexObjects, destroy_tex_sampler_cb, st);
308
309 /* need to unbind and destroy CSO objects before anything else */
310 cso_release_all(st->cso_context);
311
312 st_reference_fragprog(st, &st->fp, NULL);
313 st_reference_geomprog(st, &st->gp, NULL);
314 st_reference_vertprog(st, &st->vp, NULL);
315
316 /* release framebuffer surfaces */
317 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
318 pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);
319 }
320 pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);
321
322 pipe->set_index_buffer(pipe, NULL);
323
324 for (i = 0; i < PIPE_SHADER_TYPES; i++) {
325 pipe->set_constant_buffer(pipe, i, 0, NULL);
326 }
327
328 _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
329
330 _vbo_DestroyContext(st->ctx);
331
332 st_destroy_program_variants(st);
333
334 _mesa_free_context_data(ctx);
335
336 /* This will free the st_context too, so 'st' must not be accessed
337 * afterwards. */
338 st_destroy_context_priv(st);
339 st = NULL;
340
341 cso_destroy_context(cso);
342
343 pipe->destroy( pipe );
344
345 free(ctx);
346 }
347
348
349 void st_init_driver_functions(struct dd_function_table *functions)
350 {
351 _mesa_init_shader_object_functions(functions);
352 _mesa_init_sampler_object_functions(functions);
353
354 functions->Accum = _mesa_accum;
355
356 st_init_blit_functions(functions);
357 st_init_bufferobject_functions(functions);
358 st_init_clear_functions(functions);
359 st_init_bitmap_functions(functions);
360 st_init_drawpixels_functions(functions);
361 st_init_rasterpos_functions(functions);
362
363 st_init_drawtex_functions(functions);
364
365 st_init_eglimage_functions(functions);
366
367 st_init_fbo_functions(functions);
368 st_init_feedback_functions(functions);
369 st_init_msaa_functions(functions);
370 st_init_program_functions(functions);
371 st_init_query_functions(functions);
372 st_init_cond_render_functions(functions);
373 st_init_readpixels_functions(functions);
374 st_init_texture_functions(functions);
375 st_init_texture_barrier_functions(functions);
376 st_init_flush_functions(functions);
377 st_init_string_functions(functions);
378 st_init_viewport_functions(functions);
379
380 st_init_xformfb_functions(functions);
381 st_init_syncobj_functions(functions);
382
383 st_init_vdpau_functions(functions);
384
385 functions->UpdateState = st_invalidate_state;
386 }