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 #include "dri_util.h"
  40 #include "drm.h"
  41 #include "r128_drm.h"
  42
  43 #include "mtypes.h"
  44 #include "tnl/t_vertex.h"
  45
  46 #include "r128_reg.h"
  47
  48 #include "texmem.h"
  49
  50 struct r128_context;
  51 typedef struct r128_context r128ContextRec;
  52 typedef struct r128_context *r128ContextPtr;
  53
  54 #include "r128_lock.h"
  55 #include "r128_texobj.h"
  56 #include "r128_screen.h"
  57
  58 /* Flags for what context state needs to be updated:
  59  */
  60 #define R128_NEW_ALPHA          0x0001
  61 #define R128_NEW_DEPTH          0x0002
  62 #define R128_NEW_FOG            0x0004
  63 #define R128_NEW_CLIP           0x0008
  64 #define R128_NEW_CULL           0x0010
  65 #define R128_NEW_MASKS          0x0020
  66 #define R128_NEW_RENDER_NOT     0x0040
  67 #define R128_NEW_WINDOW         0x0080
  68 #define R128_NEW_CONTEXT        0x0100
  69 #define R128_NEW_ALL            0x01ff
  70
  71 /* Flags for software fallback cases:
  72  */
  73 #define R128_FALLBACK_TEXTURE           0x0001
  74 #define R128_FALLBACK_DRAW_BUFFER       0x0002
  75 #define R128_FALLBACK_READ_BUFFER       0x0004
  76 #define R128_FALLBACK_STENCIL           0x0008
  77 #define R128_FALLBACK_RENDER_MODE       0x0010
  78 #define R128_FALLBACK_LOGICOP           0x0020
  79 #define R128_FALLBACK_SEP_SPECULAR      0x0040
  80 #define R128_FALLBACK_BLEND_EQ          0x0080
  81 #define R128_FALLBACK_BLEND_FUNC        0x0100
  82 #define R128_FALLBACK_PROJTEX           0x0200
  83 #define R128_FALLBACK_DISABLE           0x0400
  84
  85
  86 /* Use the templated vertex format:
  87  */
  88 #define TAG(x) r128##x
  89 #include "tnl_dd/t_dd_vertex.h"
  90 #undef TAG
  91
  92 /* Reasons why the GL_BLEND fallback mightn't work:
  93  */
  94 #define R128_BLEND_ENV_COLOR    0x1
  95 #define R128_BLEND_MULTITEX     0x2
  96
  97 /* Subpixel offsets for window coordinates (triangles):
  98  */
  99 #define SUBPIXEL_X  (0.0F)
 100 #define SUBPIXEL_Y  (0.125F)
 101
 102
 103 typedef void (*r128_tri_func)( r128ContextPtr,
 104                                  r128Vertex *,
 105                                  r128Vertex *,
 106                                  r128Vertex * );
 107
 108 typedef void (*r128_line_func)( r128ContextPtr,
 109                                   r128Vertex *,
 110                                   r128Vertex * );
 111
 112 typedef void (*r128_point_func)( r128ContextPtr,
 113                                    r128Vertex * );
 114
 115
 116 struct r128_context {
 117    GLcontext *glCtx;                    /* Mesa context */
 118
 119    /* Driver and hardware state management
 120     */
 121    GLuint new_state;
 122    GLuint dirty;                        /* Hardware state to be updated */
 123    drm_r128_context_regs_t setup;
 124
 125    /* Vertex state */
 126    GLuint vertex_size;
 127    GLuint vertex_format;
 128    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 129    GLuint vertex_attr_count;
 130    char *verts;                 /* points to tnl->clipspace.vertex_buf */
 131    GLuint num_verts;
 132    int coloroffset, specoffset;
 133    int tnl_state;       /* tnl->render_inputs for this _tnl_install_attrs */
 134
 135    GLuint NewGLState;
 136    GLuint Fallback;
 137    GLuint RenderIndex;
 138    GLfloat hw_viewport[16];
 139    GLfloat depth_scale;
 140
 141    u_int32_t ClearColor;                        /* Color used to clear color buffer */
 142    u_int32_t ClearDepth;                        /* Value used to clear depth buffer */
 143    u_int32_t ClearStencil;              /* Value used to clear stencil */
 144
 145    /* Map GL texture units onto hardware
 146     */
 147    GLint multitex;
 148    GLint tmu_source[2];
 149    GLuint tex_combine[2];
 150    GLuint blend_flags;
 151    GLuint env_color;
 152
 153    /* Texture object bookkeeping
 154     */
 155    unsigned              nr_heaps;
 156    driTexHeap          * texture_heaps[ R128_NR_TEX_HEAPS ];
 157    driTextureObject      swapped;
 158
 159    r128TexObjPtr CurrentTexObj[2];
 160
 161    int texture_depth;
 162
 163    /* Fallback rasterization functions
 164     */
 165    r128_point_func draw_point;
 166    r128_line_func draw_line;
 167    r128_tri_func draw_tri;
 168
 169    /* Vertex buffers
 170     */
 171    drmBufPtr vert_buf;
 172
 173    GLuint hw_primitive;
 174    GLenum render_primitive;
 175
 176    /* Page flipping
 177     */
 178    GLuint doPageFlip;
 179
 180    /* Cliprect and scissor information
 181     */
 182    GLuint numClipRects;                 /* Cliprects for the draw buffer */
 183    drm_clip_rect_t *pClipRects;
 184
 185    GLuint scissor;
 186    drm_clip_rect_t ScissorRect; /* Current software scissor */
 187
 188    /* Mirrors of some DRI state
 189     */
 190    __DRIcontextPrivate  *driContext;    /* DRI context */
 191    __DRIscreenPrivate   *driScreen;     /* DRI screen */
 192    __DRIdrawablePrivate *driDrawable;   /* DRI drawable bound to this ctx */
 193
 194    unsigned int lastStamp;              /* mirror driDrawable->lastStamp */
 195
 196    drm_context_t hHWContext;
 197    drm_hw_lock_t *driHwLock;
 198    int driFd;
 199
 200    r128ScreenPtr r128Screen;            /* Screen private DRI data */
 201    drm_r128_sarea_t *sarea;             /* Private SAREA data */
 202
 203    /* Performance counters
 204     */
 205    GLuint boxes;                        /* Draw performance boxes */
 206    GLuint hardwareWentIdle;
 207    GLuint c_clears;
 208    GLuint c_drawWaits;
 209    GLuint c_textureSwaps;
 210    GLuint c_textureBytes;
 211    GLuint c_vertexBuffers;
 212
 213    /* VBI
 214     */
 215    GLuint vbl_seq;
 216    GLuint vblank_flags;
 217
 218    /* Configuration cache
 219     */
 220    driOptionCache optionCache;
 221 };
 222
 223 #define R128_CONTEXT(ctx)               ((r128ContextPtr)(ctx->DriverCtx))
 224
 225 #define R128_IS_PLAIN( rmesa ) \
 226                 (rmesa->r128Screen->chipset == R128_CARD_TYPE_R128)
 227 #define R128_IS_PRO( rmesa ) \
 228                 (rmesa->r128Screen->chipset == R128_CARD_TYPE_R128_PRO)
 229 #define R128_IS_MOBILITY( rmesa ) \
 230                 (rmesa->r128Screen->chipset == R128_CARD_TYPE_R128_MOBILITY)
 231
 232
 233 extern GLboolean r128CreateContext( const __GLcontextModes *glVisual,
 234                                     __DRIcontextPrivate *driContextPriv,
 235                                     void *sharedContextPrivate );
 236
 237 extern void r128DestroyContext( __DRIcontextPrivate * );
 238
 239 extern GLboolean r128MakeCurrent( __DRIcontextPrivate *driContextPriv,
 240                                   __DRIdrawablePrivate *driDrawPriv,
 241                                   __DRIdrawablePrivate *driReadPriv );
 242
 243 extern GLboolean r128UnbindContext( __DRIcontextPrivate *driContextPriv );
 244
 245 /* ================================================================
 246  * Debugging:
 247  */
 248 #define DO_DEBUG                1
 249 #define ENABLE_PERF_BOXES       0
 250
 251 #if DO_DEBUG
 252 extern int R128_DEBUG;
 253 #else
 254 #define R128_DEBUG              0
 255 #endif
 256
 257 #define DEBUG_ALWAYS_SYNC       0x01
 258 #define DEBUG_VERBOSE_API       0x02
 259 #define DEBUG_VERBOSE_MSG       0x04
 260 #define DEBUG_VERBOSE_LRU       0x08
 261 #define DEBUG_VERBOSE_DRI       0x10
 262 #define DEBUG_VERBOSE_IOCTL     0x20
 263 #define DEBUG_VERBOSE_2D        0x40
 264 #define DEBUG_VERBOSE_FALL      0x80
 265
 266 #endif /* __R128_CONTEXT_H__ */