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 #include "drm.h"
  43 #include "r128_drm.h"
  44
  45 #include "mtypes.h"
  46 #include "tnl/t_vertex.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_LOGICOP           0x0020
  81 #define R128_FALLBACK_SEP_SPECULAR      0x0040
  82 #define R128_FALLBACK_BLEND_EQ          0x0080
  83 #define R128_FALLBACK_BLEND_FUNC        0x0100
  84 #define R128_FALLBACK_PROJTEX           0x0200
  85 #define R128_FALLBACK_DISABLE           0x0400
  86
  87
  88 /* Use the templated vertex format:
  89  */
  90 #define TAG(x) r128##x
  91 #include "tnl_dd/t_dd_vertex.h"
  92 #undef TAG
  93
  94 /* Reasons why the GL_BLEND fallback mightn't work:
  95  */
  96 #define R128_BLEND_ENV_COLOR    0x1
  97 #define R128_BLEND_MULTITEX     0x2
  98
  99 /* Subpixel offsets for window coordinates (triangles):
 100  */
 101 #define SUBPIXEL_X  (0.0F)
 102 #define SUBPIXEL_Y  (0.125F)
 103
 104
 105 typedef void (*r128_tri_func)( r128ContextPtr,
 106                                  r128Vertex *,
 107                                  r128Vertex *,
 108                                  r128Vertex * );
 109
 110 typedef void (*r128_line_func)( r128ContextPtr,
 111                                   r128Vertex *,
 112                                   r128Vertex * );
 113
 114 typedef void (*r128_point_func)( r128ContextPtr,
 115                                    r128Vertex * );
 116
 117
 118 struct r128_context {
 119    GLcontext *glCtx;                    /* Mesa context */
 120
 121    /* Driver and hardware state management
 122     */
 123    GLuint new_state;
 124    GLuint dirty;                        /* Hardware state to be updated */
 125    drm_r128_context_regs_t setup;
 126
 127    /* Vertex state */
 128    GLuint vertex_size;
 129    GLuint vertex_format;
 130    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 131    GLuint vertex_attr_count;
 132    char *verts;                 /* points to tnl->clipspace.vertex_buf */
 133    GLuint num_verts;
 134    int coloroffset, specoffset;
 135    int tnl_state;       /* tnl->render_inputs for this _tnl_install_attrs */
 136
 137    GLuint NewGLState;
 138    GLuint Fallback;
 139    GLuint RenderIndex;
 140    GLfloat hw_viewport[16];
 141    GLfloat depth_scale;
 142
 143    uint32_t ClearColor;                 /* Color used to clear color buffer */
 144    uint32_t ClearDepth;                 /* Value used to clear depth buffer */
 145    uint32_t ClearStencil;               /* Value used to clear stencil */
 146
 147    /* Map GL texture units onto hardware
 148     */
 149    GLint multitex;
 150    GLint tmu_source[2];
 151    GLuint tex_combine[2];
 152    GLuint blend_flags;
 153    GLuint env_color;
 154
 155    /* Texture object bookkeeping
 156     */
 157    unsigned              nr_heaps;
 158    driTexHeap          * texture_heaps[ R128_NR_TEX_HEAPS ];
 159    driTextureObject      swapped;
 160
 161    r128TexObjPtr CurrentTexObj[2];
 162
 163    int texture_depth;
 164
 165    /* Fallback rasterization functions
 166     */
 167    r128_point_func draw_point;
 168    r128_line_func draw_line;
 169    r128_tri_func draw_tri;
 170
 171    /* Vertex buffers
 172     */
 173    drmBufPtr vert_buf;
 174
 175    GLuint hw_primitive;
 176    GLenum render_primitive;
 177
 178    /* Page flipping
 179     */
 180    GLuint doPageFlip;
 181
 182    /* Drawable, cliprect and scissor information
 183     */
 184    GLint drawOffset, drawPitch;
 185    GLint readOffset, readPitch;
 186
 187    GLuint numClipRects;                 /* Cliprects for the draw buffer */
 188    drm_clip_rect_t *pClipRects;
 189
 190    GLuint scissor;
 191    drm_clip_rect_t ScissorRect; /* Current software scissor */
 192
 193    /* Mirrors of some DRI state
 194     */
 195    __DRIcontextPrivate  *driContext;    /* DRI context */
 196    __DRIscreenPrivate   *driScreen;     /* DRI screen */
 197    __DRIdrawablePrivate *driDrawable;   /* DRI drawable bound to this ctx */
 198
 199    unsigned int lastStamp;              /* mirror driDrawable->lastStamp */
 200
 201    drm_context_t hHWContext;
 202    drm_hw_lock_t *driHwLock;
 203    int driFd;
 204
 205    r128ScreenPtr r128Screen;            /* Screen private DRI data */
 206    drm_r128_sarea_t *sarea;             /* Private SAREA data */
 207
 208    /* Performance counters
 209     */
 210    GLuint boxes;                        /* Draw performance boxes */
 211    GLuint hardwareWentIdle;
 212    GLuint c_clears;
 213    GLuint c_drawWaits;
 214    GLuint c_textureSwaps;
 215    GLuint c_textureBytes;
 216    GLuint c_vertexBuffers;
 217
 218    /* VBI
 219     */
 220    GLuint vbl_seq;
 221    GLuint vblank_flags;
 222
 223    /* Configuration cache
 224     */
 225    driOptionCache optionCache;
 226 };
 227
 228 #define R128_CONTEXT(ctx)               ((r128ContextPtr)(ctx->DriverCtx))
 229
 230 #define R128_IS_PLAIN( rmesa ) \
 231                 (rmesa->r128Screen->chipset == R128_CARD_TYPE_R128)
 232 #define R128_IS_PRO( rmesa ) \
 233                 (rmesa->r128Screen->chipset == R128_CARD_TYPE_R128_PRO)
 234 #define R128_IS_MOBILITY( rmesa ) \
 235                 (rmesa->r128Screen->chipset == R128_CARD_TYPE_R128_MOBILITY)
 236
 237
 238 extern GLboolean r128CreateContext( const __GLcontextModes *glVisual,
 239                                     __DRIcontextPrivate *driContextPriv,
 240                                     void *sharedContextPrivate );
 241
 242 extern void r128DestroyContext( __DRIcontextPrivate * );
 243
 244 extern GLboolean r128MakeCurrent( __DRIcontextPrivate *driContextPriv,
 245                                   __DRIdrawablePrivate *driDrawPriv,
 246                                   __DRIdrawablePrivate *driReadPriv );
 247
 248 extern GLboolean r128UnbindContext( __DRIcontextPrivate *driContextPriv );
 249
 250 /* ================================================================
 251  * Debugging:
 252  */
 253 #define DO_DEBUG                1
 254 #define ENABLE_PERF_BOXES       0
 255
 256 #if DO_DEBUG
 257 extern int R128_DEBUG;
 258 #else
 259 #define R128_DEBUG              0
 260 #endif
 261
 262 #define DEBUG_ALWAYS_SYNC       0x01
 263 #define DEBUG_VERBOSE_API       0x02
 264 #define DEBUG_VERBOSE_MSG       0x04
 265 #define DEBUG_VERBOSE_LRU       0x08
 266 #define DEBUG_VERBOSE_DRI       0x10
 267 #define DEBUG_VERBOSE_IOCTL     0x20
 268 #define DEBUG_VERBOSE_2D        0x40
 269 #define DEBUG_VERBOSE_FALL      0x80
 270
 271 #endif
 272 #endif /* __R128_CONTEXT_H__ */