src/mesa/drivers/dri/nouveau/nouveau_context.h

   1 /**************************************************************************
   2
   3 Copyright 2006 Stephane Marchesin
   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 "Software"),
   8 to deal in the Software without restriction, including without limitation
   9 on the rights to use, copy, modify, merge, publish, distribute, sub
  10 license, and/or sell copies of the Software, and to permit persons to whom
  11 the Software is furnished to do so, subject to the following conditions:
  12
  13 The above copyright notice and this permission notice (including the next
  14 paragraph) shall be included in all copies or substantial portions of the
  15 Software.
  16
  17 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  20 ERIC ANHOLT OR SILICON INTEGRATED SYSTEMS CORP BE LIABLE FOR ANY CLAIM,
  21 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  22 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  23 USE OR OTHER DEALINGS IN THE SOFTWARE.
  24
  25 **************************************************************************/
  26
  27
  28
  29 #ifndef __NOUVEAU_CONTEXT_H__
  30 #define __NOUVEAU_CONTEXT_H__
  31
  32 #include "dri_util.h"
  33 #include "drm.h"
  34 #include "nouveau_drm.h"
  35
  36 #include "mtypes.h"
  37 #include "tnl/t_vertex.h"
  38
  39 #include "nouveau_reg.h"
  40 #include "nouveau_screen.h"
  41
  42 #include "xmlconfig.h"
  43
  44 typedef struct nouveau_fifo_t{
  45         u_int32_t* buffer;
  46         u_int32_t current;
  47         u_int32_t put;
  48         u_int32_t free;
  49         u_int32_t max;
  50 }
  51 nouveau_fifo;
  52
  53 #define TAG(x) nouveau##x
  54 #include "tnl_dd/t_dd_vertex.h"
  55 #undef TAG
  56
  57 /* Subpixel offsets for window coordinates (triangles): */
  58 #define SUBPIXEL_X  (0.0F)
  59 #define SUBPIXEL_Y  (0.125F)
  60
  61 struct nouveau_context;
  62
  63 typedef void (*nouveau_tri_func)( struct nouveau_context*,
  64                 nouveauVertex *,
  65                 nouveauVertex *,
  66                 nouveauVertex * );
  67
  68 typedef void (*nouveau_line_func)( struct nouveau_context*,
  69                 nouveauVertex *,
  70                 nouveauVertex * );
  71
  72 typedef void (*nouveau_point_func)( struct nouveau_context*,
  73                 nouveauVertex * );
  74
  75
  76 typedef struct nouveau_context {
  77         /* Mesa context */
  78         GLcontext *glCtx;
  79
  80         /* The per-context fifo */
  81         nouveau_fifo fifo;
  82
  83         /* The fifo control regs */
  84         volatile unsigned char* fifo_mmio;
  85
  86         /* The read-only regs */
  87         volatile unsigned char* mmio;
  88
  89         /* State for tris */
  90         GLuint color_offset;
  91         GLuint specular_offset;
  92
  93         /* Vertex state */
  94         GLuint vertex_size;
  95         char *verts;
  96         struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
  97         GLuint vertex_attr_count;
  98
  99         /* Clear state */
 100         GLuint clear_color;
 101         GLuint clear_depth;
 102         GLuint clear_stencil;
 103
 104         /* The drawing fallbacks */
 105         GLuint Fallback;
 106         nouveau_tri_func draw_tri;
 107         nouveau_line_func draw_line;
 108         nouveau_point_func draw_point;
 109
 110         /* Cliprects information */
 111         GLuint numClipRects;
 112         drm_clip_rect_t *pClipRects;
 113
 114         /* The rendering context information */
 115         GLenum current_primitive; /* the current primitive enum */
 116         GLuint render_inputs; /* the current render inputs */
 117
 118         nouveauScreenRec *screen;
 119         drm_nouveau_sarea_t *sarea;
 120
 121         __DRIcontextPrivate  *driContext;    /* DRI context */
 122         __DRIscreenPrivate   *driScreen;     /* DRI screen */
 123         __DRIdrawablePrivate *driDrawable;   /* DRI drawable bound to this ctx */
 124
 125         drm_context_t hHWContext;
 126         drm_hw_lock_t *driHwLock;
 127         int driFd;
 128
 129         /* Configuration cache */
 130         driOptionCache optionCache;
 131
 132         uint32_t vblank_flags;
 133
 134         GLuint new_state;
 135         GLuint new_render_state;
 136         GLuint render_index;
 137         GLmatrix viewport;
 138         GLfloat depth_scale;
 139
 140 }nouveauContextRec, *nouveauContextPtr;
 141
 142
 143 #define NOUVEAU_CONTEXT(ctx)            ((nouveauContextPtr)(ctx->DriverCtx))
 144
 145 /* Flags for what context state needs to be updated: */
 146 #define NOUVEAU_NEW_ALPHA               0x0001
 147 #define NOUVEAU_NEW_DEPTH               0x0002
 148 #define NOUVEAU_NEW_FOG                 0x0004
 149 #define NOUVEAU_NEW_CLIP                0x0008
 150 #define NOUVEAU_NEW_CULL                0x0010
 151 #define NOUVEAU_NEW_MASKS               0x0020
 152 #define NOUVEAU_NEW_RENDER_NOT          0x0040
 153 #define NOUVEAU_NEW_WINDOW              0x0080
 154 #define NOUVEAU_NEW_CONTEXT             0x0100
 155 #define NOUVEAU_NEW_ALL                 0x01ff
 156
 157 /* Flags for software fallback cases: */
 158 #define NOUVEAU_FALLBACK_TEXTURE                0x0001
 159 #define NOUVEAU_FALLBACK_DRAW_BUFFER            0x0002
 160 #define NOUVEAU_FALLBACK_READ_BUFFER            0x0004
 161 #define NOUVEAU_FALLBACK_STENCIL                0x0008
 162 #define NOUVEAU_FALLBACK_RENDER_MODE            0x0010
 163 #define NOUVEAU_FALLBACK_LOGICOP                0x0020
 164 #define NOUVEAU_FALLBACK_SEP_SPECULAR           0x0040
 165 #define NOUVEAU_FALLBACK_BLEND_EQ               0x0080
 166 #define NOUVEAU_FALLBACK_BLEND_FUNC             0x0100
 167 #define NOUVEAU_FALLBACK_PROJTEX                0x0200
 168 #define NOUVEAU_FALLBACK_DISABLE                0x0400
 169
 170
 171 extern GLboolean nouveauCreateContext( const __GLcontextModes *glVisual,
 172                 __DRIcontextPrivate *driContextPriv,
 173                 void *sharedContextPrivate );
 174
 175 extern void nouveauDestroyContext( __DRIcontextPrivate * );
 176
 177 extern GLboolean nouveauMakeCurrent( __DRIcontextPrivate *driContextPriv,
 178                 __DRIdrawablePrivate *driDrawPriv,
 179                 __DRIdrawablePrivate *driReadPriv );
 180
 181 extern GLboolean nouveauUnbindContext( __DRIcontextPrivate *driContextPriv );
 182
 183
 184 #endif /* __NOUVEAU_CONTEXT_H__ */
 185