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      1 /*
      2  * Copyright (C) 2009 Francisco Jerez.
      3  * All Rights Reserved.
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining
      6  * a copy of this software and associated documentation files (the
      7  * "Software"), to deal in the Software without restriction, including
      8  * without limitation the rights to use, copy, modify, merge, publish,
      9  * distribute, sublicense, and/or sell copies of the Software, and to
     10  * permit persons to whom the Software is furnished to do so, subject to
     11  * the following conditions:
     12  *
     13  * The above copyright notice and this permission notice (including the
     14  * next paragraph) shall be included in all copies or substantial
     15  * portions of the Software.
     16  *
     17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
     20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
     21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     24  *
     25  */
     26 
     27 #ifndef __NOUVEAU_CONTEXT_H__
     28 #define __NOUVEAU_CONTEXT_H__
     29 
     30 #include "nouveau_screen.h"
     31 #include "nouveau_state.h"
     32 #include "nouveau_scratch.h"
     33 #include "nouveau_render.h"
     34 
     35 #include "util/bitset.h"
     36 
     37 enum nouveau_fallback {
     38 	HWTNL = 0,
     39 	SWTNL,
     40 	SWRAST,
     41 };
     42 
     43 #define BUFCTX_FB      0
     44 #define BUFCTX_VTX     1
     45 #define BUFCTX_TEX(i) (2 + (i))
     46 
     47 struct nouveau_hw_state {
     48 	struct nouveau_object *chan;
     49 	struct nouveau_client *client;
     50 	struct nouveau_pushbuf *pushbuf;
     51 	struct nouveau_bufctx *bufctx;
     52 
     53 	struct nouveau_object *null;
     54 	struct nouveau_object *ntfy;
     55 	struct nouveau_object *eng3d;
     56 	struct nouveau_object *eng3dm;
     57 	struct nouveau_object *surf3d;
     58 	struct nouveau_object *m2mf;
     59 	struct nouveau_object *surf2d;
     60 	struct nouveau_object *rop;
     61 	struct nouveau_object *patt;
     62 	struct nouveau_object *rect;
     63 	struct nouveau_object *swzsurf;
     64 	struct nouveau_object *sifm;
     65 };
     66 
     67 struct nouveau_context {
     68 	struct gl_context base;
     69 	__DRIcontext *dri_context;
     70 	struct nouveau_screen *screen;
     71 
     72 	BITSET_DECLARE(dirty, MAX_NOUVEAU_STATE);
     73 	enum nouveau_fallback fallback;
     74 
     75 	struct nouveau_bo *fence;
     76 
     77 	struct nouveau_hw_state hw;
     78 	struct nouveau_render_state render;
     79 	struct nouveau_scratch_state scratch;
     80 
     81 	struct {
     82 		GLboolean clear_blocked;
     83 		int clear_seq;
     84 	} hierz;
     85 };
     86 
     87 #define to_nouveau_context(ctx)	((struct nouveau_context *)(ctx))
     88 
     89 #define context_dev(ctx) \
     90 	(to_nouveau_context(ctx)->screen->device)
     91 #define context_chipset(ctx) \
     92 	(context_dev(ctx)->chipset)
     93 #define context_chan(ctx) \
     94 	(to_nouveau_context(ctx)->hw.chan)
     95 #define context_client(ctx) \
     96 	(to_nouveau_context(ctx)->hw.client)
     97 #define context_push(ctx) \
     98 	(to_nouveau_context(ctx)->hw.pushbuf)
     99 #define context_eng3d(ctx) \
    100 	(to_nouveau_context(ctx)->hw.eng3d)
    101 #define context_drv(ctx) \
    102 	(to_nouveau_context(ctx)->screen->driver)
    103 #define context_dirty(ctx, s) \
    104 	BITSET_SET(to_nouveau_context(ctx)->dirty, NOUVEAU_STATE_##s)
    105 #define context_dirty_i(ctx, s, i) \
    106 	BITSET_SET(to_nouveau_context(ctx)->dirty, NOUVEAU_STATE_##s##0 + i)
    107 #define context_emit(ctx, s) \
    108 	context_drv(ctx)->emit[NOUVEAU_STATE_##s](ctx, NOUVEAU_STATE_##s)
    109 
    110 GLboolean
    111 nouveau_context_create(gl_api api,
    112 		       const struct gl_config *visual, __DRIcontext *dri_ctx,
    113 		       unsigned major_version, unsigned minor_version,
    114 		       uint32_t flags, bool notify_reset, unsigned *error,
    115 		       void *share_ctx);
    116 
    117 GLboolean
    118 nouveau_context_init(struct gl_context *ctx, gl_api api,
    119 		     struct nouveau_screen *screen,
    120 		     const struct gl_config *visual, struct gl_context *share_ctx);
    121 
    122 void
    123 nouveau_context_deinit(struct gl_context *ctx);
    124 
    125 void
    126 nouveau_context_destroy(__DRIcontext *dri_ctx);
    127 
    128 void
    129 nouveau_update_renderbuffers(__DRIcontext *dri_ctx, __DRIdrawable *draw);
    130 
    131 GLboolean
    132 nouveau_context_make_current(__DRIcontext *dri_ctx, __DRIdrawable *ddraw,
    133 			     __DRIdrawable *rdraw);
    134 
    135 GLboolean
    136 nouveau_context_unbind(__DRIcontext *dri_ctx);
    137 
    138 void
    139 nouveau_fallback(struct gl_context *ctx, enum nouveau_fallback mode);
    140 
    141 void
    142 nouveau_validate_framebuffer(struct gl_context *ctx);
    143 
    144 #endif
    145 
    146