src/mesa/drivers/dri/r128/r128_context.h

   1 /* $XFree86: xc/lib/GL/mesa/src/drv/r128/r128_context.h,v 1.12 2002/12/16 16:18:52 dawes Exp $ */
   2 /**************************************************************************
   3
   4 Copyright 1999, 2000 ATI Technologies Inc. and Precision Insight, Inc.,
   5                                                Cedar Park, Texas.
   6 All Rights Reserved.
   7
   8 Permission is hereby granted, free of charge, to any person obtaining a
   9 copy of this software and associated documentation files (the "Software"),
  10 to deal in the Software without restriction, including without limitation
  11 on the rights to use, copy, modify, merge, publish, distribute, sub
  12 license, and/or sell copies of the Software, and to permit persons to whom
  13 the Software is furnished to do so, subject to the following conditions:
  14
  15 The above copyright notice and this permission notice (including the next
  16 paragraph) shall be included in all copies or substantial portions of the
  17 Software.
  18
  19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21 FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  22 ATI, PRECISION INSIGHT AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  23 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  24 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  25 USE OR OTHER DEALINGS IN THE SOFTWARE.
  26
  27 **************************************************************************/
  28
  29 /*
  30  * Authors:
  31  *   Kevin E. Martin <martin@valinux.com>
  32  *   Gareth Hughes <gareth@valinux.com>
  33  *
  34  */
  35
  36 #ifndef __R128_CONTEXT_H__
  37 #define __R128_CONTEXT_H__
  38
  39 #ifdef GLX_DIRECT_RENDERING
  40
  41 #include "dri_util.h"
  42
  43 #include "xf86drm.h"
  44 #include "r128_common.h"
  45
  46 #include "mtypes.h"
  47
  48 #include "r128_reg.h"
  49
  50 #include "texmem.h"
  51
  52 struct r128_context;
  53 typedef struct r128_context r128ContextRec;
  54 typedef struct r128_context *r128ContextPtr;
  55
  56 #include "r128_lock.h"
  57 #include "r128_texobj.h"
  58 #include "r128_screen.h"
  59
  60 /* Flags for what context state needs to be updated:
  61  */
  62 #define R128_NEW_ALPHA          0x0001
  63 #define R128_NEW_DEPTH          0x0002
  64 #define R128_NEW_FOG            0x0004
  65 #define R128_NEW_CLIP           0x0008
  66 #define R128_NEW_CULL           0x0010
  67 #define R128_NEW_MASKS          0x0020
  68 #define R128_NEW_RENDER_NOT     0x0040
  69 #define R128_NEW_WINDOW         0x0080
  70 #define R128_NEW_CONTEXT        0x0100
  71 #define R128_NEW_ALL            0x01ff
  72
  73 /* Flags for software fallback cases:
  74  */
  75 #define R128_FALLBACK_TEXTURE           0x0001
  76 #define R128_FALLBACK_DRAW_BUFFER       0x0002
  77 #define R128_FALLBACK_READ_BUFFER       0x0004
  78 #define R128_FALLBACK_STENCIL           0x0008
  79 #define R128_FALLBACK_RENDER_MODE       0x0010
  80 #define R128_FALLBACK_MULTIDRAW         0x0020
  81 #define R128_FALLBACK_LOGICOP           0x0040
  82 #define R128_FALLBACK_SEP_SPECULAR      0x0080
  83 #define R128_FALLBACK_BLEND_EQ          0x0100
  84 #define R128_FALLBACK_BLEND_FUNC        0x0200
  85
  86
  87 /* Use the templated vertex format:
  88  */
  89 #define TAG(x) r128##x
  90 #include "tnl_dd/t_dd_vertex.h"
  91 #undef TAG
  92
  93 /* Reasons why the GL_BLEND fallback mightn't work:
  94  */
  95 #define R128_BLEND_ENV_COLOR    0x1
  96 #define R128_BLEND_MULTITEX     0x2
  97
  98 /* Subpixel offsets for window coordinates (triangles):
  99  */
 100 #define SUBPIXEL_X  (0.0F)
 101 #define SUBPIXEL_Y  (0.125F)
 102
 103
 104 typedef void (*r128_tri_func)( r128ContextPtr,
 105                                  r128Vertex *,
 106                                  r128Vertex *,
 107                                  r128Vertex * );
 108
 109 typedef void (*r128_line_func)( r128ContextPtr,
 110                                   r128Vertex *,
 111                                   r128Vertex * );
 112
 113 typedef void (*r128_point_func)( r128ContextPtr,
 114                                    r128Vertex * );
 115
 116
 117 struct r128_context {
 118    GLcontext *glCtx;                    /* Mesa context */
 119
 120    /* Driver and hardware state management
 121     */
 122    GLuint new_state;
 123    GLuint dirty;                        /* Hardware state to be updated */
 124    r128_context_regs_t setup;
 125
 126    GLuint NewGLState;
 127    GLuint Fallback;
 128    GLuint SetupIndex;
 129    GLuint SetupNewInputs;
 130    GLuint RenderIndex;
 131    GLfloat hw_viewport[16];
 132    GLfloat depth_scale;
 133    GLuint vertex_size;
 134    GLuint vertex_stride_shift;
 135    GLuint vertex_format;
 136    GLuint num_verts;
 137    GLubyte *verts;
 138
 139    CARD32 ClearColor;                   /* Color used to clear color buffer */
 140    CARD32 ClearDepth;                   /* Value used to clear depth buffer */
 141    CARD32 ClearStencil;                 /* Value used to clear stencil */
 142
 143    /* Map GL texture units onto hardware
 144     */
 145    GLint multitex;
 146    GLint tmu_source[2];
 147    GLuint tex_combine[2];
 148    GLuint blend_flags;
 149    GLuint env_color;
 150
 151    /* Texture object bookkeeping
 152     */
 153    unsigned              nr_heaps;
 154    driTexHeap          * texture_heaps[ R128_NR_TEX_HEAPS ];
 155    driTextureObject      swapped;
 156
 157    r128TexObjPtr CurrentTexObj[2];
 158
 159    int texture_depth;
 160
 161    /* Fallback rasterization functions
 162     */
 163    r128_point_func draw_point;
 164    r128_line_func draw_line;
 165    r128_tri_func draw_tri;
 166
 167    /* Vertex buffers
 168     */
 169    drmBufPtr vert_buf;
 170
 171    GLuint hw_primitive;
 172    GLenum render_primitive;
 173
 174    /* Page flipping
 175     */
 176    GLuint doPageFlip;
 177
 178    /* Drawable, cliprect and scissor information
 179     */
 180    GLint drawOffset, drawPitch;
 181    GLint readOffset, readPitch;
 182
 183    GLuint numClipRects;                 /* Cliprects for the draw buffer */
 184    XF86DRIClipRectPtr pClipRects;
 185
 186    GLuint scissor;
 187    XF86DRIClipRectRec ScissorRect;      /* Current software scissor */
 188
 189    /* Mirrors of some DRI state
 190     */
 191    __DRIcontextPrivate  *driContext;    /* DRI context */
 192    __DRIscreenPrivate   *driScreen;     /* DRI screen */
 193    __DRIdrawablePrivate *driDrawable;   /* DRI drawable bound to this ctx */
 194
 195    unsigned int lastStamp;              /* mirror driDrawable->lastStamp */
 196
 197    drmContext hHWContext;
 198    drmLock *driHwLock;
 199    int driFd;
 200
 201    r128ScreenPtr r128Screen;            /* Screen private DRI data */
 202    R128SAREAPrivPtr sarea;              /* Private SAREA data */
 203
 204    /* Performance counters
 205     */
 206    GLuint boxes;                        /* Draw performance boxes */
 207    GLuint hardwareWentIdle;
 208    GLuint c_clears;
 209    GLuint c_drawWaits;
 210    GLuint c_textureSwaps;
 211    GLuint c_textureBytes;
 212    GLuint c_vertexBuffers;
 213
 214    /* VBI
 215     */
 216    GLuint vbl_seq;
 217    GLuint vblank_flags;
 218
 219    /* Configuration cache
 220     */
 221    driOptionCache optionCache;
 222 };
 223
 224 #define R128_CONTEXT(ctx)               ((r128ContextPtr)(ctx->DriverCtx))
 225
 226 #define R128_IS_PLAIN( rmesa ) \
 227                 (rmesa->r128Screen->chipset == R128_CARD_TYPE_R128)
 228 #define R128_IS_PRO( rmesa ) \
 229                 (rmesa->r128Screen->chipset == R128_CARD_TYPE_R128_PRO)
 230 #define R128_IS_MOBILITY( rmesa ) \
 231                 (rmesa->r128Screen->chipset == R128_CARD_TYPE_R128_MOBILITY)
 232
 233
 234 extern GLboolean r128CreateContext( const __GLcontextModes *glVisual,
 235                                     __DRIcontextPrivate *driContextPriv,
 236                                     void *sharedContextPrivate );
 237
 238 extern void r128DestroyContext( __DRIcontextPrivate * );
 239
 240 extern GLboolean r128MakeCurrent( __DRIcontextPrivate *driContextPriv,
 241                                   __DRIdrawablePrivate *driDrawPriv,
 242                                   __DRIdrawablePrivate *driReadPriv );
 243
 244 extern GLboolean r128UnbindContext( __DRIcontextPrivate *driContextPriv );
 245
 246 /* ================================================================
 247  * Debugging:
 248  */
 249 #define DO_DEBUG                0
 250 #define ENABLE_PERF_BOXES       0
 251
 252 #if DO_DEBUG
 253 extern int R128_DEBUG;
 254 #else
 255 #define R128_DEBUG              0
 256 #endif
 257
 258 #define DEBUG_ALWAYS_SYNC       0x01
 259 #define DEBUG_VERBOSE_API       0x02
 260 #define DEBUG_VERBOSE_MSG       0x04
 261 #define DEBUG_VERBOSE_LRU       0x08
 262 #define DEBUG_VERBOSE_DRI       0x10
 263 #define DEBUG_VERBOSE_IOCTL     0x20
 264 #define DEBUG_VERBOSE_2D        0x40
 265
 266 #endif
 267 #endif /* __R128_CONTEXT_H__ */