src/mesa/drivers/dri/i830/i830_context.h

   1 /*
   2  * GLX Hardware Device Driver for Intel i830
   3  * Copyright (C) 1999 Keith Whitwell
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included
  13  * in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
  21  * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  */
  24
  25 /* Adapted for use in the I830M driver:
  26  *   Jeff Hartmann <jhartmann@2d3d.com>
  27  */
  28 /* $XFree86: xc/lib/GL/mesa/src/drv/i830/i830_context.h,v 1.7 2003/02/06 04:18:01 dawes Exp $ */
  29
  30 #ifndef I830CONTEXT_INC
  31 #define I830CONTEXT_INC
  32
  33 typedef struct i830_context_t i830Context;
  34 typedef struct i830_context_t *i830ContextPtr;
  35 typedef struct i830_texture_object_t *i830TextureObjectPtr;
  36
  37
  38 #include "mtypes.h"
  39 #include "drm.h"
  40 #include "mm.h"
  41 #include "tnl/t_vertex.h"
  42
  43 #include "i830_screen.h"
  44 #include "i830_tex.h"
  45
  46 #define TAG(x) i830##x
  47 #include "tnl_dd/t_dd_vertex.h"
  48 #undef TAG
  49
  50 #define DV_PF_555  (1<<8)
  51 #define DV_PF_565  (2<<8)
  52 #define DV_PF_8888 (3<<8)
  53
  54 #define I830_TEX_MAXLEVELS 10
  55
  56 #define I830_CONTEXT(ctx)       ((i830ContextPtr)(ctx->DriverCtx))
  57 #define GET_DISPATCH_AGE(imesa) imesa->sarea->last_dispatch
  58 #define GET_ENQUEUE_AGE(imesa)  imesa->sarea->last_enqueue
  59
  60
  61 typedef void (*i830_tri_func)(i830ContextPtr, i830Vertex *, i830Vertex *,
  62                                                           i830Vertex *);
  63 typedef void (*i830_line_func)(i830ContextPtr, i830Vertex *, i830Vertex *);
  64 typedef void (*i830_point_func)(i830ContextPtr, i830Vertex *);
  65
  66 #define I830_MAX_TEXTURE_UNITS    4
  67
  68 #define I830_FALLBACK_TEXTURE            0x1
  69 #define I830_FALLBACK_DRAW_BUFFER        0x2
  70 #define I830_FALLBACK_READ_BUFFER        0x4
  71 #define I830_FALLBACK_COLORMASK          0x8
  72 #define I830_FALLBACK_RENDERMODE         0x10
  73 #define I830_FALLBACK_STENCIL            0x20
  74 #define I830_FALLBACK_STIPPLE            0x40
  75 #define I830_FALLBACK_USER               0x80
  76
  77 struct i830_context_t
  78 {
  79    GLint refcount;
  80    GLcontext *glCtx;
  81
  82    /*From I830 stuff*/
  83    int TextureMode;
  84    GLuint renderindex;
  85    GLuint TexBlendWordsUsed[I830_MAX_TEXTURE_UNITS];
  86    GLuint TexBlend[I830_MAX_TEXTURE_UNITS][I830_TEXBLEND_SIZE];
  87    GLuint Init_TexBlend[I830_MAX_TEXTURE_UNITS][I830_TEXBLEND_SIZE];
  88    GLuint Init_TexBlendWordsUsed[I830_MAX_TEXTURE_UNITS];
  89    GLuint Init_BufferSetup[I830_DEST_SETUP_SIZE];
  90    GLuint LodBias[I830_MAX_TEXTURE_UNITS];
  91
  92    GLenum palette_format;
  93    GLuint palette[256];
  94
  95
  96    GLuint Init_Setup[I830_CTX_SETUP_SIZE];
  97    GLuint vertex_prim;
  98    drmBufPtr vertex_dma_buffer;
  99
 100    GLboolean mask_red;
 101    GLboolean mask_green;
 102    GLboolean mask_blue;
 103    GLboolean mask_alpha;
 104
 105    GLubyte clear_red;
 106    GLubyte clear_green;
 107    GLubyte clear_blue;
 108    GLubyte clear_alpha;
 109
 110    GLfloat depth_scale;
 111    int depth_clear_mask;
 112    int stencil_clear_mask;
 113    int ClearDepth;
 114    int hw_stencil;
 115
 116    GLuint MonoColor;
 117
 118    GLuint LastTexEnabled;
 119    GLuint TexEnabledMask;
 120
 121    /* Texture object bookkeeping
 122     */
 123    unsigned              nr_heaps;
 124    driTexHeap          * texture_heaps[1];
 125    driTextureObject      swapped;
 126
 127    struct i830_texture_object_t *CurrentTexObj[I830_MAX_TEXTURE_UNITS];
 128
 129    /* Rasterization and vertex state:
 130     */
 131    GLuint Fallback;
 132    GLuint NewGLState;
 133
 134    /* Vertex state
 135     */
 136    GLuint vertex_size;
 137    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 138    GLuint vertex_attr_count;
 139    char *verts;                 /* points to tnl->clipspace.vertex_buf */
 140
 141
 142    /* State for i830tris.c.
 143     */
 144    GLuint RenderIndex;
 145    GLmatrix ViewportMatrix;
 146    GLenum render_primitive;
 147    GLenum reduced_primitive;
 148    GLuint hw_primitive;
 149
 150    drmBufPtr  vertex_buffer;
 151    char *vertex_addr;
 152    GLuint vertex_low;
 153    GLuint vertex_high;
 154    GLuint vertex_last_prim;
 155
 156    GLboolean upload_cliprects;
 157
 158
 159    /* Fallback rasterization functions
 160     */
 161    i830_point_func draw_point;
 162    i830_line_func draw_line;
 163    i830_tri_func draw_tri;
 164
 165    /* Hardware state
 166     */
 167    GLuint dirty;                /* I810_UPLOAD_* */
 168    GLuint Setup[I830_CTX_SETUP_SIZE];
 169    GLuint BufferSetup[I830_DEST_SETUP_SIZE];
 170    GLuint StippleSetup[I830_STP_SETUP_SIZE];
 171    unsigned int lastStamp;
 172    GLboolean hw_stipple;
 173
 174    GLenum TexEnvImageFmt[2];
 175
 176    /* State which can't be computed completely on the fly:
 177     */
 178    GLuint LcsCullMode;
 179    GLuint LcsLineWidth;
 180    GLuint LcsPointSize;
 181
 182    /* Funny mesa mirrors
 183     */
 184    GLuint ClearColor;
 185
 186    /* DRI stuff
 187     */
 188    GLuint needClip;
 189    GLframebuffer *glBuffer;
 190
 191    /* These refer to the current draw (front vs. back) buffer:
 192     */
 193    char *drawMap;               /* draw buffer address in virtual mem */
 194    char *readMap;
 195    int drawX;                   /* origin of drawable in draw buffer */
 196    int drawY;
 197    GLuint numClipRects;         /* cliprects for that buffer */
 198    drm_clip_rect_t *pClipRects;
 199
 200    int lastSwap;
 201    int texAge;
 202    int ctxAge;
 203    int dirtyAge;
 204    int perf_boxes;
 205
 206    int do_irqs;
 207
 208    GLboolean scissor;
 209    drm_clip_rect_t draw_rect;
 210    drm_clip_rect_t scissor_rect;
 211
 212    drm_context_t hHWContext;
 213    drmLock *driHwLock;
 214    int driFd;
 215
 216    __DRIdrawablePrivate *driDrawable;    /**< DRI drawable bound to this
 217                                           * context for drawing.
 218                                           */
 219    __DRIdrawablePrivate *driReadable;    /**< DRI drawable bound to this
 220                                           * context for reading.
 221                                           */
 222
 223    /**
 224     * Drawable used by Mesa for software fallbacks for reading and
 225     * writing.  It is set by Mesa's \c SetBuffer callback, and will always be
 226     * either \c i830_context_t::driDrawable or \c i830_context_t::driReadable.
 227     */
 228
 229    __DRIdrawablePrivate * mesa_drawable;
 230
 231    __DRIscreenPrivate *driScreen;
 232    i830ScreenPrivate *i830Screen;
 233    I830SAREAPtr sarea;
 234
 235    /**
 236     * Configuration cache
 237     */
 238    driOptionCache optionCache;
 239 };
 240
 241
 242 #define I830_TEX_UNIT_ENABLED(unit)     (1<<unit)
 243 #define VALID_I830_TEXTURE_OBJECT(tobj) (tobj)
 244
 245 #define I830_CONTEXT(ctx)   ((i830ContextPtr)(ctx->DriverCtx))
 246 #define I830_DRIVER_DATA(vb) ((i830VertexBufferPtr)((vb)->driver_data))
 247 #define GET_DISPATCH_AGE(imesa) imesa->sarea->last_dispatch
 248 #define GET_ENQUEUE_AGE(imesa)  imesa->sarea->last_enqueue
 249
 250
 251 /* Lock the hardware and validate our state.
 252  */
 253 #define LOCK_HARDWARE( imesa )                          \
 254 do {                                                    \
 255     char __ret=0;                                       \
 256     DRM_CAS(imesa->driHwLock, imesa->hHWContext,        \
 257         (DRM_LOCK_HELD|imesa->hHWContext), __ret);      \
 258     if (__ret)                                          \
 259         i830GetLock( imesa, 0 );                        \
 260 }while (0)
 261
 262
 263   /* Unlock the hardware using the global current context
 264    */
 265 #define UNLOCK_HARDWARE(imesa)                                          \
 266 do {                                                                    \
 267    imesa->perf_boxes |= imesa->sarea->perf_boxes;                       \
 268    DRM_UNLOCK(imesa->driFd, imesa->driHwLock, imesa->hHWContext);       \
 269 } while (0)
 270
 271   /* This is the wrong way to do it, I'm sure.  Otherwise the drm
 272    * bitches that I've already got the heavyweight lock.  At worst,
 273    * this is 3 ioctls.  The best solution probably only gets me down
 274    * to 2 ioctls in the worst case.
 275    */
 276 #define LOCK_HARDWARE_QUIESCENT( imesa ) do {            \
 277    LOCK_HARDWARE( imesa );                               \
 278    i830RegetLockQuiescent( imesa );                      \
 279 } while(0)
 280
 281
 282
 283 extern void i830GetLock(i830ContextPtr imesa, GLuint flags);
 284 extern void i830EmitHwStateLocked(i830ContextPtr imesa);
 285 extern void i830EmitDrawingRectangle(i830ContextPtr imesa);
 286 extern void i830XMesaSetBackClipRects(i830ContextPtr imesa);
 287 extern void i830XMesaSetFrontClipRects(i830ContextPtr imesa);
 288 extern void i830DDExtensionsInit(GLcontext *ctx);
 289 extern void i830DDInitDriverFuncs(GLcontext *ctx);
 290 extern void i830DDUpdateHwState(GLcontext *ctx);
 291
 292 #define SUBPIXEL_X 0.125
 293 #define SUBPIXEL_Y 0.125
 294
 295
 296 /* ================================================================
 297  * Debugging:
 298  */
 299 #define DO_DEBUG                1
 300 #if DO_DEBUG
 301 extern int I830_DEBUG;
 302 #else
 303 #define I830_DEBUG              0
 304 #endif
 305
 306 #define DEBUG_TEXTURE   0x1
 307 #define DEBUG_STATE     0x2
 308 #define DEBUG_IOCTL     0x4
 309 #define DEBUG_PRIMS     0x8
 310 #define DEBUG_VERTS     0x10
 311 #define DEBUG_FALLBACKS 0x20
 312 #define DEBUG_VERBOSE   0x40
 313 #define DEBUG_DRI       0x80
 314 #define DEBUG_DMA       0x100
 315 #define DEBUG_SANITY    0x200
 316 #define DEBUG_SYNC      0x400
 317 #define DEBUG_SLEEP     0x800
 318
 319
 320 #define PCI_CHIP_845_G                  0x2562
 321 #define PCI_CHIP_I830_M                 0x3577
 322 #define PCI_CHIP_I855_GM                0x3582
 323 #define PCI_CHIP_I865_G                 0x2572
 324
 325
 326 #endif
 327