src/mesa/drivers/dri/i810/i810context.h

   1 /*
   2  * GLX Hardware Device Driver for Intel i810
   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 /* $XFree86: xc/lib/GL/mesa/src/drv/i810/main/context.h,v 1.9 2002/12/16 16:18:51 dawes Exp $ */
  25
  26 #ifndef I810CONTEXT_INC
  27 #define I810CONTEXT_INC
  28
  29 typedef struct i810_context_t i810Context;
  30 typedef struct i810_context_t *i810ContextPtr;
  31 typedef struct i810_texture_object_t *i810TextureObjectPtr;
  32
  33 #include "drm.h"
  34 #include "main/mtypes.h"
  35 #include "main/mm.h"
  36
  37 #include "i810screen.h"
  38 #include "i810tex.h"
  39
  40
  41 /* Reasons to disable hardware rasterization.
  42  */
  43 #define I810_FALLBACK_TEXTURE        0x1
  44 #define I810_FALLBACK_DRAW_BUFFER    0x2
  45 #define I810_FALLBACK_READ_BUFFER    0x4
  46 #define I810_FALLBACK_COLORMASK      0x8
  47 #define I810_FALLBACK_SPECULAR       0x20
  48 #define I810_FALLBACK_LOGICOP        0x40
  49 #define I810_FALLBACK_RENDERMODE     0x80
  50 #define I810_FALLBACK_STENCIL        0x100
  51 #define I810_FALLBACK_BLEND_EQ       0x200
  52 #define I810_FALLBACK_BLEND_FUNC     0x400
  53
  54
  55 #ifndef PCI_CHIP_I810
  56 #define PCI_CHIP_I810              0x7121
  57 #define PCI_CHIP_I810_DC100        0x7123
  58 #define PCI_CHIP_I810_E            0x7125
  59 #define PCI_CHIP_I815              0x1132
  60 #endif
  61
  62 #define IS_I810(imesa) (imesa->i810Screen->deviceID == PCI_CHIP_I810 || \
  63                         imesa->i810Screen->deviceID == PCI_CHIP_I810_DC100 || \
  64                         imesa->i810Screen->deviceID == PCI_CHIP_I810_E)
  65 #define IS_I815(imesa) (imesa->i810Screen->deviceID == PCI_CHIP_I815)
  66
  67
  68 #define I810_UPLOAD_TEX(i) (I810_UPLOAD_TEX0<<(i))
  69
  70 /* Use the templated vertex formats:
  71  */
  72 #define TAG(x) i810##x
  73 #include "tnl_dd/t_dd_vertex.h"
  74 #undef TAG
  75
  76 typedef void (*i810_tri_func)( i810ContextPtr, i810Vertex *, i810Vertex *,
  77                                i810Vertex * );
  78 typedef void (*i810_line_func)( i810ContextPtr, i810Vertex *, i810Vertex * );
  79 typedef void (*i810_point_func)( i810ContextPtr, i810Vertex * );
  80
  81 struct i810_context_t {
  82    GLint refcount;
  83    GLcontext *glCtx;
  84
  85    /* Texture object bookkeeping
  86     */
  87    unsigned              nr_heaps;
  88    driTexHeap          * texture_heaps[1];
  89    driTextureObject      swapped;
  90
  91    struct i810_texture_object_t *CurrentTexObj[2];
  92
  93
  94    /* Bit flag to keep track of fallbacks.
  95     */
  96    GLuint Fallback;
  97
  98    /* State for i810vb.c and i810tris.c.
  99     */
 100    GLuint new_state;            /* _NEW_* flags */
 101    GLuint SetupNewInputs;
 102    GLuint SetupIndex;
 103    GLuint RenderIndex;
 104    GLmatrix ViewportMatrix;
 105    GLenum render_primitive;
 106    GLenum reduced_primitive;
 107    GLuint hw_primitive;
 108    GLubyte *verts;
 109
 110    drmBufPtr  vertex_buffer;
 111    char *vertex_addr;
 112    GLuint vertex_low;
 113    GLuint vertex_high;
 114    GLuint vertex_last_prim;
 115
 116    GLboolean upload_cliprects;
 117
 118
 119    /* Fallback rasterization functions
 120     */
 121    i810_point_func draw_point;
 122    i810_line_func draw_line;
 123    i810_tri_func draw_tri;
 124
 125    /* Hardware state
 126     */
 127    GLuint dirty;                /* I810_UPLOAD_* */
 128    GLuint Setup[I810_CTX_SETUP_SIZE];
 129    GLuint BufferSetup[I810_DEST_SETUP_SIZE];
 130    int vertex_size;
 131    int vertex_stride_shift;
 132    unsigned int lastStamp;
 133    GLboolean stipple_in_hw;
 134
 135    GLenum TexEnvImageFmt[2];
 136
 137    /* State which can't be computed completely on the fly:
 138     */
 139    GLuint LcsCullMode;
 140    GLuint LcsLineWidth;
 141    GLuint LcsPointSize;
 142
 143    /* Funny mesa mirrors
 144     */
 145    GLushort ClearColor;
 146
 147    /* DRI stuff
 148     */
 149    GLuint needClip;
 150    GLframebuffer *glBuffer;
 151    GLboolean doPageFlip;
 152
 153    /* These refer to the current draw (front vs. back) buffer:
 154     */
 155    int drawX;                   /* origin of drawable in draw buffer */
 156    int drawY;
 157    GLuint numClipRects;         /* cliprects for that buffer */
 158    drm_clip_rect_t *pClipRects;
 159
 160    int lastSwap;
 161    int texAge;
 162    int ctxAge;
 163    int dirtyAge;
 164
 165
 166    GLboolean scissor;
 167    drm_clip_rect_t draw_rect;
 168    drm_clip_rect_t scissor_rect;
 169
 170    drm_context_t hHWContext;
 171    drm_hw_lock_t *driHwLock;
 172    int driFd;
 173
 174    __DRIdrawablePrivate *driDrawable;
 175    __DRIscreenPrivate *driScreen;
 176    i810ScreenPrivate *i810Screen;
 177    I810SAREAPtr sarea;
 178 };
 179
 180
 181 #define I810_CONTEXT(ctx)    ((i810ContextPtr)(ctx->DriverCtx))
 182
 183 #define GET_DISPATCH_AGE( imesa ) imesa->sarea->last_dispatch
 184 #define GET_ENQUEUE_AGE( imesa ) imesa->sarea->last_enqueue
 185
 186
 187 /* Lock the hardware and validate our state.
 188  */
 189 #define LOCK_HARDWARE( imesa )                          \
 190   do {                                                  \
 191     char __ret=0;                                       \
 192     DRM_CAS(imesa->driHwLock, imesa->hHWContext,        \
 193             (DRM_LOCK_HELD|imesa->hHWContext), __ret);  \
 194     if (__ret)                                          \
 195         i810GetLock( imesa, 0 );                        \
 196   } while (0)
 197
 198
 199
 200 /* Release the kernel lock.
 201  */
 202 #define UNLOCK_HARDWARE(imesa)                                  \
 203     DRM_UNLOCK(imesa->driFd, imesa->driHwLock, imesa->hHWContext);
 204
 205
 206 /* This is the wrong way to do it, I'm sure.  Otherwise the drm
 207  * bitches that I've already got the heavyweight lock.  At worst,
 208  * this is 3 ioctls.  The best solution probably only gets me down
 209  * to 2 ioctls in the worst case.
 210  */
 211 #define LOCK_HARDWARE_QUIESCENT( imesa ) do {   \
 212    LOCK_HARDWARE( imesa );                      \
 213    i810RegetLockQuiescent( imesa );             \
 214 } while(0)
 215
 216
 217 extern void i810GetLock( i810ContextPtr imesa, GLuint flags );
 218 extern void i810EmitHwStateLocked( i810ContextPtr imesa );
 219 extern void i810EmitScissorValues( i810ContextPtr imesa, int box_nr, int emit );
 220 extern void i810EmitDrawingRectangle( i810ContextPtr imesa );
 221 extern void i810XMesaSetBackClipRects( i810ContextPtr imesa );
 222 extern void i810XMesaSetFrontClipRects( i810ContextPtr imesa );
 223
 224 #define SUBPIXEL_X -.5
 225 #define SUBPIXEL_Y -.5
 226
 227 /* ================================================================
 228  * Debugging:
 229  */
 230 #define DO_DEBUG                1
 231 #if DO_DEBUG
 232 extern int I810_DEBUG;
 233 #else
 234 #define I810_DEBUG              0
 235 #endif
 236
 237 #define DEBUG_TEXTURE   0x1
 238 #define DEBUG_STATE     0x2
 239 #define DEBUG_IOCTL     0x4
 240 #define DEBUG_PRIMS     0x8
 241 #define DEBUG_VERTS     0x10
 242 #define DEBUG_FALLBACKS 0x20
 243 #define DEBUG_VERBOSE   0x40
 244 #define DEBUG_DRI       0x80
 245 #define DEBUG_DMA       0x100
 246 #define DEBUG_SANITY    0x200
 247 #define DEBUG_SYNC      0x400
 248 #define DEBUG_SLEEP     0x800
 249
 250 #endif