src/mesa/drivers/dri/trident/trident_context.h

   1 /*
   2  * Copyright 2002 by Alan Hourihane, Sychdyn, North Wales, UK.
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software and its
   5  * documentation for any purpose is hereby granted without fee, provided that
   6  * the above copyright notice appear in all copies and that both that
   7  * copyright notice and this permission notice appear in supporting
   8  * documentation, and that the name of Alan Hourihane not be used in
   9  * advertising or publicity pertaining to distribution of the software without
  10  * specific, written prior permission.  Alan Hourihane makes no representations
  11  * about the suitability of this software for any purpose.  It is provided
  12  * "as is" without express or implied warranty.
  13  *
  14  * ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  15  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  16  * EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  17  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  18  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  19  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  20  * PERFORMANCE OF THIS SOFTWARE.
  21  *
  22  * Authors:  Alan Hourihane, <alanh@fairlite.demon.co.uk>
  23  *
  24  * Trident CyberBladeXP driver.
  25  *
  26  */
  27 #ifndef _TRIDENT_CONTEXT_H_
  28 #define _TRIDENT_CONTEXT_H_
  29
  30 #include "dri_util.h"
  31 #include "main/macros.h"
  32 #include "main/mtypes.h"
  33 #include "drm.h"
  34 #include "main/mm.h"
  35
  36 #define SUBPIXEL_X (0.0F)
  37 #define SUBPIXEL_Y (0.125F)
  38
  39 #define _TRIDENT_NEW_VERTEX (_NEW_TEXTURE |             \
  40                            _DD_NEW_TRI_UNFILLED |       \
  41                            _DD_NEW_TRI_LIGHT_TWOSIDE)
  42
  43 #define TRIDENT_FALLBACK_TEXTURE        0x01
  44 #define TRIDENT_FALLBACK_DRAW_BUFFER    0x02
  45
  46 #define TRIDENT_NEW_CLIP                0x01
  47
  48 #define TRIDENT_UPLOAD_COMMAND_D        0x00000001
  49 #define TRIDENT_UPLOAD_CONTEXT          0x04000000
  50 #define TRIDENT_UPLOAD_CLIPRECTS        0x80000000
  51
  52 #define TAG(x) trident##x
  53 #include "tnl_dd/t_dd_vertex.h"
  54 #undef TAG
  55
  56 /* these require that base be dword-aligned */
  57 static INLINE void MMIO_OUT32(unsigned char *base, unsigned int offset,
  58                               unsigned int val)
  59 {
  60     unsigned int *addr = (unsigned int *)(base + offset);
  61     *addr = val;
  62 }
  63
  64 static INLINE unsigned int MMIO_IN32(unsigned char *base, unsigned int offset)
  65 {
  66     unsigned int *addr = (unsigned int *)(base + offset);
  67     return *addr;
  68 }
  69
  70 #define MMIO_OUT8(base, offset, val) *((base) + (offset)) = (val)
  71 #define MMIO_IN8(base, offset) *((base) + (offset))
  72
  73 struct trident_context;
  74 typedef struct trident_context tridentContextRec;
  75 typedef struct trident_context *tridentContextPtr;
  76
  77 typedef void (*trident_quad_func)( tridentContextPtr,
  78                                  const tridentVertex *,
  79                                  const tridentVertex *,
  80                                  const tridentVertex *,
  81                                  const tridentVertex * );
  82 typedef void (*trident_tri_func)( tridentContextPtr,
  83                                 const tridentVertex *,
  84                                 const tridentVertex *,
  85                                 const tridentVertex * );
  86 typedef void (*trident_line_func)( tridentContextPtr,
  87                                  const tridentVertex *,
  88                                  const tridentVertex * );
  89 typedef void (*trident_point_func)( tridentContextPtr,
  90                                   const tridentVertex * );
  91
  92 typedef struct {
  93    drm_handle_t handle;                 /* Handle to the DRM region */
  94    drmSize size;                        /* Size of the DRM region */
  95    unsigned char *map;                  /* Mapping of the DRM region */
  96 } tridentRegionRec, *tridentRegionPtr;
  97
  98 typedef struct {
  99     __DRIscreenPrivate *driScreen; /* Back pointer to DRI screen */
 100
 101     drmBufMapPtr buffers;
 102
 103     unsigned int frontOffset;
 104     unsigned int frontPitch;
 105     unsigned int backOffset;
 106     unsigned int backPitch;
 107     unsigned int depthOffset;
 108     unsigned int depthPitch;
 109     unsigned int width;
 110     unsigned int height;
 111     unsigned int cpp;
 112
 113 #if 0
 114     unsigned int sarea_priv_offset;
 115 #endif
 116
 117     tridentRegionRec mmio;
 118 } tridentScreenRec, *tridentScreenPtr;
 119
 120 /**
 121  * tridentRenderbuffer, derived from Mesa's gl_renderbuffer
 122  */
 123 typedef struct {
 124    struct gl_renderbuffer Base;
 125    /* XXX per-window info should go here */
 126    int foo, bar;
 127 } tridentRenderbuffer;
 128
 129
 130 struct trident_context {
 131         GLcontext               *glCtx;         /* Mesa context */
 132
 133         __DRIcontextPrivate     *driContext;
 134         __DRIscreenPrivate      *driScreen;
 135         __DRIdrawablePrivate    *driDrawable;
 136
 137         GLuint                  new_gl_state;
 138         GLuint                  new_state;
 139         GLuint                  dirty;
 140
 141 #if 0
 142         drm_trident_sarea_t     *sarea;
 143 #endif
 144
 145         /* Temporaries for translating away float colors:
 146          */
 147         struct gl_client_array UbyteColor;
 148         struct gl_client_array UbyteSecondaryColor;
 149
 150         /* Mirrors of some DRI state
 151          */
 152         int lastStamp;                  /* mirror driDrawable->lastStamp */
 153
 154         drm_context_t hHWContext;
 155         drmLock *driHwLock;
 156         int driFd;
 157
 158         tridentScreenPtr tridentScreen; /* Screen private DRI data */
 159
 160         /* Visual, drawable, cliprect and scissor information
 161          */
 162         GLenum DrawBuffer;
 163         GLint drawOffset, drawPitch;
 164         GLint drawX, drawY;             /* origin of drawable in draw buffer */
 165         GLint readOffset, readPitch;
 166
 167         GLuint numClipRects;            /* Cliprects for the draw buffer */
 168         drm_clip_rect_t *pClipRects;
 169
 170         GLint scissor;
 171         drm_clip_rect_t ScissorRect;    /* Current software scissor */
 172
 173         GLuint Fallback;
 174         GLuint RenderIndex;
 175         GLuint SetupNewInputs;
 176         GLuint SetupIndex;
 177         GLfloat hw_viewport[16];
 178         GLfloat depth_scale;
 179         GLuint vertex_format;
 180         GLuint vertex_size;
 181         GLuint vertex_stride_shift;
 182         GLubyte *verts;
 183
 184         GLint tmu_source[2];
 185
 186         GLuint hw_primitive;
 187         GLenum render_primitive;
 188
 189         trident_point_func    draw_point;
 190         trident_line_func     draw_line;
 191         trident_tri_func      draw_tri;
 192         trident_quad_func     draw_quad;
 193
 194 #if 0
 195         gammaTextureObjectPtr CurrentTexObj[2];
 196         struct gamma_texture_object_t TexObjList;
 197         struct gamma_texture_object_t SwappedOut;
 198         GLenum TexEnvImageFmt[2];
 199
 200         struct mem_block *texHeap;
 201
 202         int lastSwap;
 203         int texAge;
 204         int ctxAge;
 205         int dirtyAge;
 206         int lastStamp;
 207 #endif
 208
 209         /* Chip state */
 210
 211         int     commandD;
 212
 213         /* Context State */
 214
 215         int     ClearColor;
 216 };
 217
 218 void tridentDDInitExtensions( GLcontext *ctx );
 219 void tridentDDInitDriverFuncs( GLcontext *ctx );
 220 void tridentDDInitSpanFuncs( GLcontext *ctx );
 221 void tridentDDInitState( tridentContextPtr tmesa );
 222 void tridentInitHW( tridentContextPtr tmesa );
 223 void tridentDDInitStateFuncs( GLcontext *ctx );
 224 void tridentDDInitTextureFuncs( GLcontext *ctx );
 225 void tridentDDInitTriFuncs( GLcontext *ctx );
 226
 227 extern void tridentBuildVertices( GLcontext *ctx,
 228                                 GLuint start,
 229                                 GLuint count,
 230                                 GLuint newinputs );
 231 extern void tridentInitVB( GLcontext *ctx );
 232 extern void tridentCopyBuffer( const __DRIdrawablePrivate *dPriv );
 233 extern void tridentFallback( tridentContextPtr tmesa, GLuint bit,
 234                              GLboolean mode );
 235 extern void tridentCheckTexSizes( GLcontext *ctx );
 236 extern void tridentChooseVertexState( GLcontext *ctx );
 237 extern void tridentDDUpdateHWState( GLcontext *ctx );
 238 extern void tridentUploadHwStateLocked( tridentContextPtr tmesa );
 239
 240 #define TRIDENT_CONTEXT(ctx)            ((tridentContextPtr)(ctx->DriverCtx))
 241
 242 #endif /* _TRIDENT_CONTEXT_H_ */