src/mesa/drivers/dri/r200/r200_ioctl.h

   1 /* $XFree86: xc/lib/GL/mesa/src/drv/r200/r200_ioctl.h,v 1.1 2002/10/30 12:51:52 alanh Exp $ */
   2 /*
   3 Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
   4
   5 The Weather Channel (TM) funded Tungsten Graphics to develop the
   6 initial release of the Radeon 8500 driver under the XFree86 license.
   7 This notice must be preserved.
   8
   9 Permission is hereby granted, free of charge, to any person obtaining
  10 a copy of this software and associated documentation files (the
  11 "Software"), to deal in the Software without restriction, including
  12 without limitation the rights to use, copy, modify, merge, publish,
  13 distribute, sublicense, and/or sell copies of the Software, and to
  14 permit persons to whom the Software is furnished to do so, subject to
  15 the following conditions:
  16
  17 The above copyright notice and this permission notice (including the
  18 next paragraph) shall be included in all copies or substantial
  19 portions of the Software.
  20
  21 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  24 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  25 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28
  29 **************************************************************************/
  30
  31 /*
  32  * Authors:
  33  *   Keith Whitwell <keith@tungstengraphics.com>
  34  */
  35
  36 #ifndef __R200_IOCTL_H__
  37 #define __R200_IOCTL_H__
  38
  39 #ifdef GLX_DIRECT_RENDERING
  40
  41 #include "simple_list.h"
  42 #include "radeon_dri.h"
  43 #include "r200_lock.h"
  44
  45 #include "xf86drm.h"
  46 #include "drm.h"
  47 #include "radeon_drm.h"
  48
  49 extern void r200EmitState( r200ContextPtr rmesa );
  50 extern void r200EmitVertexAOS( r200ContextPtr rmesa,
  51                                  GLuint vertex_size,
  52                                  GLuint offset );
  53
  54 extern void r200EmitVbufPrim( r200ContextPtr rmesa,
  55                                 GLuint primitive,
  56                                 GLuint vertex_nr );
  57
  58 extern void r200FlushElts( r200ContextPtr rmesa );
  59
  60 extern GLushort *r200AllocEltsOpenEnded( r200ContextPtr rmesa,
  61                                            GLuint primitive,
  62                                            GLuint min_nr );
  63
  64 extern void r200EmitAOS( r200ContextPtr rmesa,
  65                            struct r200_dma_region **regions,
  66                            GLuint n,
  67                            GLuint offset );
  68
  69 extern void r200EmitBlit( r200ContextPtr rmesa,
  70                           GLuint color_fmt,
  71                           GLuint src_pitch,
  72                           GLuint src_offset,
  73                           GLuint dst_pitch,
  74                           GLuint dst_offset,
  75                           GLint srcx, GLint srcy,
  76                           GLint dstx, GLint dsty,
  77                           GLuint w, GLuint h );
  78
  79 extern void r200EmitWait( r200ContextPtr rmesa, GLuint flags );
  80
  81 extern void r200FlushCmdBuf( r200ContextPtr rmesa, const char * );
  82 extern int r200FlushCmdBufLocked( r200ContextPtr rmesa, const char * caller );
  83
  84 extern void r200RefillCurrentDmaRegion( r200ContextPtr rmesa );
  85
  86 extern void r200AllocDmaRegion( r200ContextPtr rmesa,
  87                                   struct r200_dma_region *region,
  88                                   int bytes,
  89                                   int alignment );
  90
  91 extern void r200AllocDmaRegionVerts( r200ContextPtr rmesa,
  92                                        struct r200_dma_region *region,
  93                                        int numverts,
  94                                        int vertsize,
  95                                        int alignment );
  96
  97 extern void r200ReleaseDmaRegion( r200ContextPtr rmesa,
  98                                     struct r200_dma_region *region,
  99                                     const char *caller );
 100
 101 extern void r200CopyBuffer( const __DRIdrawablePrivate *drawable );
 102 extern void r200PageFlip( const __DRIdrawablePrivate *drawable );
 103 extern void r200Flush( GLcontext *ctx );
 104 extern void r200Finish( GLcontext *ctx );
 105 extern void r200WaitForIdleLocked( r200ContextPtr rmesa );
 106 extern void r200WaitForVBlank( r200ContextPtr rmesa );
 107 extern void r200InitIoctlFuncs( struct dd_function_table *functions );
 108
 109 extern void *r200AllocateMemoryMESA( __DRInativeDisplay *dpy, int scrn, GLsizei size, GLfloat readfreq,
 110                                    GLfloat writefreq, GLfloat priority );
 111 extern void r200FreeMemoryMESA( __DRInativeDisplay *dpy, int scrn, GLvoid *pointer );
 112 extern GLuint r200GetMemoryOffsetMESA( __DRInativeDisplay *dpy, int scrn, const GLvoid *pointer );
 113
 114 extern GLboolean r200IsGartMemory( r200ContextPtr rmesa, const GLvoid *pointer,
 115                                    GLint size );
 116
 117 extern GLuint r200GartOffsetFromVirtual( r200ContextPtr rmesa,
 118                                          const GLvoid *pointer );
 119
 120 void r200SetUpAtomList( r200ContextPtr rmesa );
 121
 122 /* ================================================================
 123  * Helper macros:
 124  */
 125
 126 /* Close off the last primitive, if it exists.
 127  */
 128 #define R200_NEWPRIM( rmesa )                   \
 129 do {                                            \
 130    if ( rmesa->dma.flush )                      \
 131       rmesa->dma.flush( rmesa );        \
 132 } while (0)
 133
 134 /* Can accomodate several state changes and primitive changes without
 135  * actually firing the buffer.
 136  */
 137 #define R200_STATECHANGE( rmesa, ATOM )                 \
 138 do {                                                            \
 139    R200_NEWPRIM( rmesa );                                       \
 140    rmesa->hw.ATOM.dirty = GL_TRUE;                              \
 141    rmesa->hw.is_dirty = GL_TRUE;                                \
 142 } while (0)
 143
 144 #define R200_DB_STATE( ATOM )                           \
 145    memcpy( rmesa->hw.ATOM.lastcmd, rmesa->hw.ATOM.cmd,  \
 146            rmesa->hw.ATOM.cmd_size * 4)
 147
 148 static __inline int R200_DB_STATECHANGE(
 149    r200ContextPtr rmesa,
 150    struct r200_state_atom *atom )
 151 {
 152    if (memcmp(atom->cmd, atom->lastcmd, atom->cmd_size*4)) {
 153       int *tmp;
 154       R200_NEWPRIM( rmesa );
 155       atom->dirty = GL_TRUE;
 156       rmesa->hw.is_dirty = GL_TRUE;
 157       tmp = atom->cmd;
 158       atom->cmd = atom->lastcmd;
 159       atom->lastcmd = tmp;
 160       return 1;
 161    }
 162    else
 163       return 0;
 164 }
 165
 166
 167 /* Fire the buffered vertices no matter what.
 168  */
 169 #define R200_FIREVERTICES( rmesa )                      \
 170 do {                                                    \
 171    if ( rmesa->store.cmd_used || rmesa->dma.flush ) {   \
 172       r200Flush( rmesa->glCtx );                        \
 173    }                                                    \
 174 } while (0)
 175
 176 /* Command lengths.  Note that any time you ensure ELTS_BUFSZ or VBUF_BUFSZ
 177  * are available, you will also be adding an rmesa->state.max_state_size because
 178  * r200EmitState is called from within r200EmitVbufPrim and r200FlushElts.
 179  */
 180 #define AOS_BUFSZ(nr)   ((3 + ((nr / 2) * 3) + ((nr & 1) * 2)) * sizeof(int))
 181 #define VERT_AOS_BUFSZ  (5 * sizeof(int))
 182 #define ELTS_BUFSZ(nr)  (12 + nr * 2)
 183 #define VBUF_BUFSZ      (3 * sizeof(int))
 184
 185 /* Ensure that a minimum amount of space is available in the command buffer.
 186  * This is used to ensure atomicity of state updates with the rendering requests
 187  * that rely on them.
 188  *
 189  * An alternative would be to implement a "soft lock" such that when the buffer
 190  * wraps at an inopportune time, we grab the lock, flush the current buffer,
 191  * and hang on to the lock until the critical section is finished and we flush
 192  * the buffer again and unlock.
 193  */
 194 static __inline void r200EnsureCmdBufSpace( r200ContextPtr rmesa, int bytes )
 195 {
 196    if (rmesa->store.cmd_used + bytes > R200_CMD_BUF_SZ)
 197       r200FlushCmdBuf( rmesa, __FUNCTION__ );
 198    assert( bytes <= R200_CMD_BUF_SZ );
 199 }
 200
 201 /* Alloc space in the command buffer
 202  */
 203 static __inline char *r200AllocCmdBuf( r200ContextPtr rmesa,
 204                                          int bytes, const char *where )
 205 {
 206    char * head;
 207
 208    if (rmesa->store.cmd_used + bytes > R200_CMD_BUF_SZ)
 209       r200FlushCmdBuf( rmesa, where );
 210
 211    head = rmesa->store.cmd_buf + rmesa->store.cmd_used;
 212    rmesa->store.cmd_used += bytes;
 213    assert( rmesa->store.cmd_used <= R200_CMD_BUF_SZ );
 214    return head;
 215 }
 216
 217
 218
 219
 220 #endif
 221 #endif /* __R200_IOCTL_H__ */