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    /* Temporaries for translating away float colors:
 127     */
 128    struct gl_client_array UbyteColor;
 129    struct gl_client_array UbyteSecondaryColor;
 130
 131    GLuint NewGLState;
 132    GLuint Fallback;
 133    GLuint SetupIndex;
 134    GLuint SetupNewInputs;
 135    GLuint RenderIndex;
 136    GLfloat hw_viewport[16];
 137    GLfloat depth_scale;
 138    GLuint vertex_size;
 139    GLuint vertex_stride_shift;
 140    GLuint vertex_format;
 141    GLuint num_verts;
 142    GLubyte *verts;
 143
 144    CARD32 ClearColor;                   /* Color used to clear color buffer */
 145    CARD32 ClearDepth;                   /* Value used to clear depth buffer */
 146    CARD32 ClearStencil;                 /* Value used to clear stencil */
 147
 148    /* Map GL texture units onto hardware
 149     */
 150    GLint multitex;
 151    GLint tmu_source[2];
 152    GLuint tex_combine[2];
 153    GLuint blend_flags;
 154    GLuint env_color;
 155
 156    /* Texture object bookkeeping
 157     */
 158    unsigned              nr_heaps;
 159    driTexHeap          * texture_heaps[ R128_NR_TEX_HEAPS ];
 160    driTextureObject      swapped;
 161
 162    r128TexObjPtr CurrentTexObj[2];
 163
 164    int texture_depth;
 165
 166    /* Fallback rasterization functions
 167     */
 168    r128_point_func draw_point;
 169    r128_line_func draw_line;
 170    r128_tri_func draw_tri;
 171
 172    /* Vertex buffers
 173     */
 174    drmBufPtr vert_buf;
 175
 176    GLuint hw_primitive;
 177    GLenum render_primitive;
 178
 179    /* Page flipping
 180     */
 181    GLuint doPageFlip;
 182
 183    /* Drawable, cliprect and scissor information
 184     */
 185    GLint drawOffset, drawPitch;
 186    GLint readOffset, readPitch;
 187
 188    GLuint numClipRects;                 /* Cliprects for the draw buffer */
 189    XF86DRIClipRectPtr pClipRects;
 190
 191    GLuint scissor;
 192    XF86DRIClipRectRec ScissorRect;      /* Current software scissor */
 193
 194    /* Mirrors of some DRI state
 195     */
 196    __DRIcontextPrivate  *driContext;    /* DRI context */
 197    __DRIscreenPrivate   *driScreen;     /* DRI screen */
 198    __DRIdrawablePrivate *driDrawable;   /* DRI drawable bound to this ctx */
 199
 200    unsigned int lastStamp;              /* mirror driDrawable->lastStamp */
 201
 202    drmContext hHWContext;
 203    drmLock *driHwLock;
 204    int driFd;
 205
 206    r128ScreenPtr r128Screen;            /* Screen private DRI data */
 207    R128SAREAPrivPtr sarea;              /* Private SAREA data */
 208
 209    /* Performance counters
 210     */
 211    GLuint boxes;                        /* Draw performance boxes */
 212    GLuint hardwareWentIdle;
 213    GLuint c_clears;
 214    GLuint c_drawWaits;
 215    GLuint c_textureSwaps;
 216    GLuint c_textureBytes;
 217    GLuint c_vertexBuffers;
 218
 219    /* VBI
 220     */
 221    GLuint vbl_seq;
 222    GLuint vblank_flags;
 223
 224    /* Configuration cache
 225     */
 226    driOptionCache optionCache;
 227 };
 228
 229 #define R128_CONTEXT(ctx)               ((r128ContextPtr)(ctx->DriverCtx))
 230
 231 #define R128_IS_PLAIN( rmesa ) \
 232                 (rmesa->r128Screen->chipset == R128_CARD_TYPE_R128)
 233 #define R128_IS_PRO( rmesa ) \
 234                 (rmesa->r128Screen->chipset == R128_CARD_TYPE_R128_PRO)
 235 #define R128_IS_MOBILITY( rmesa ) \
 236                 (rmesa->r128Screen->chipset == R128_CARD_TYPE_R128_MOBILITY)
 237
 238
 239 extern GLboolean r128CreateContext( const __GLcontextModes *glVisual,
 240                                     __DRIcontextPrivate *driContextPriv,
 241                                     void *sharedContextPrivate );
 242
 243 extern void r128DestroyContext( __DRIcontextPrivate * );
 244
 245 extern GLboolean r128MakeCurrent( __DRIcontextPrivate *driContextPriv,
 246                                   __DRIdrawablePrivate *driDrawPriv,
 247                                   __DRIdrawablePrivate *driReadPriv );
 248
 249 extern GLboolean r128UnbindContext( __DRIcontextPrivate *driContextPriv );
 250
 251 /* ================================================================
 252  * Debugging:
 253  */
 254 #define DO_DEBUG                0
 255 #define ENABLE_PERF_BOXES       0
 256
 257 #if DO_DEBUG
 258 extern int R128_DEBUG;
 259 #else
 260 #define R128_DEBUG              0
 261 #endif
 262
 263 #define DEBUG_ALWAYS_SYNC       0x01
 264 #define DEBUG_VERBOSE_API       0x02
 265 #define DEBUG_VERBOSE_MSG       0x04
 266 #define DEBUG_VERBOSE_LRU       0x08
 267 #define DEBUG_VERBOSE_DRI       0x10
 268 #define DEBUG_VERBOSE_IOCTL     0x20
 269 #define DEBUG_VERBOSE_2D        0x40
 270
 271 #endif
 272 #endif /* __R128_CONTEXT_H__ */