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 #include "simple_list.h"
  40 #include "radeon_dri.h"
  41 #include "r200_lock.h"
  42
  43 #include "xf86drm.h"
  44 #include "drm.h"
  45 #include "radeon_drm.h"
  46
  47 extern void r200EmitState( r200ContextPtr rmesa );
  48 extern void r200EmitVertexAOS( r200ContextPtr rmesa,
  49                                  GLuint vertex_size,
  50                                  GLuint offset );
  51
  52 extern void r200EmitVbufPrim( r200ContextPtr rmesa,
  53                                 GLuint primitive,
  54                                 GLuint vertex_nr );
  55
  56 extern void r200FlushElts( r200ContextPtr rmesa );
  57
  58 extern GLushort *r200AllocEltsOpenEnded( r200ContextPtr rmesa,
  59                                            GLuint primitive,
  60                                            GLuint min_nr );
  61
  62 extern void r200EmitAOS( r200ContextPtr rmesa,
  63                            struct r200_dma_region **regions,
  64                            GLuint n,
  65                            GLuint offset );
  66
  67 extern void r200EmitBlit( r200ContextPtr rmesa,
  68                           GLuint color_fmt,
  69                           GLuint src_pitch,
  70                           GLuint src_offset,
  71                           GLuint dst_pitch,
  72                           GLuint dst_offset,
  73                           GLint srcx, GLint srcy,
  74                           GLint dstx, GLint dsty,
  75                           GLuint w, GLuint h );
  76
  77 extern void r200EmitWait( r200ContextPtr rmesa, GLuint flags );
  78
  79 extern void r200FlushCmdBuf( r200ContextPtr rmesa, const char * );
  80 extern int r200FlushCmdBufLocked( r200ContextPtr rmesa, const char * caller );
  81
  82 extern void r200RefillCurrentDmaRegion( r200ContextPtr rmesa );
  83
  84 extern void r200AllocDmaRegion( r200ContextPtr rmesa,
  85                                   struct r200_dma_region *region,
  86                                   int bytes,
  87                                   int alignment );
  88
  89 extern void r200ReleaseDmaRegion( r200ContextPtr rmesa,
  90                                     struct r200_dma_region *region,
  91                                     const char *caller );
  92
  93 extern void r200CopyBuffer( const __DRIdrawablePrivate *drawable,
  94                             const drm_clip_rect_t      *rect);
  95 extern void r200PageFlip( const __DRIdrawablePrivate *drawable );
  96 extern void r200Flush( GLcontext *ctx );
  97 extern void r200Finish( GLcontext *ctx );
  98 extern void r200WaitForIdleLocked( r200ContextPtr rmesa );
  99 extern void r200WaitForVBlank( r200ContextPtr rmesa );
 100 extern void r200InitIoctlFuncs( struct dd_function_table *functions );
 101
 102 extern void *r200AllocateMemoryMESA( __DRInativeDisplay *dpy, int scrn, GLsizei size, GLfloat readfreq,
 103                                    GLfloat writefreq, GLfloat priority );
 104 extern void r200FreeMemoryMESA( __DRInativeDisplay *dpy, int scrn, GLvoid *pointer );
 105 extern GLuint r200GetMemoryOffsetMESA( __DRInativeDisplay *dpy, int scrn, const GLvoid *pointer );
 106
 107 extern GLboolean r200IsGartMemory( r200ContextPtr rmesa, const GLvoid *pointer,
 108                                    GLint size );
 109
 110 extern GLuint r200GartOffsetFromVirtual( r200ContextPtr rmesa,
 111                                          const GLvoid *pointer );
 112
 113 void r200SetUpAtomList( r200ContextPtr rmesa );
 114
 115 /* ================================================================
 116  * Helper macros:
 117  */
 118
 119 /* Close off the last primitive, if it exists.
 120  */
 121 #define R200_NEWPRIM( rmesa )                   \
 122 do {                                            \
 123    if ( rmesa->dma.flush )                      \
 124       rmesa->dma.flush( rmesa );        \
 125 } while (0)
 126
 127 /* Can accomodate several state changes and primitive changes without
 128  * actually firing the buffer.
 129  */
 130 #define R200_STATECHANGE( rmesa, ATOM )                 \
 131 do {                                                            \
 132    R200_NEWPRIM( rmesa );                                       \
 133    rmesa->hw.ATOM.dirty = GL_TRUE;                              \
 134    rmesa->hw.is_dirty = GL_TRUE;                                \
 135 } while (0)
 136
 137 #define R200_DB_STATE( ATOM )                           \
 138    memcpy( rmesa->hw.ATOM.lastcmd, rmesa->hw.ATOM.cmd,  \
 139            rmesa->hw.ATOM.cmd_size * 4)
 140
 141 static __inline int R200_DB_STATECHANGE(
 142    r200ContextPtr rmesa,
 143    struct r200_state_atom *atom )
 144 {
 145    if (memcmp(atom->cmd, atom->lastcmd, atom->cmd_size*4)) {
 146       int *tmp;
 147       R200_NEWPRIM( rmesa );
 148       atom->dirty = GL_TRUE;
 149       rmesa->hw.is_dirty = GL_TRUE;
 150       tmp = atom->cmd;
 151       atom->cmd = atom->lastcmd;
 152       atom->lastcmd = tmp;
 153       return 1;
 154    }
 155    else
 156       return 0;
 157 }
 158
 159
 160 /* Fire the buffered vertices no matter what.
 161  */
 162 #define R200_FIREVERTICES( rmesa )                      \
 163 do {                                                    \
 164    if ( rmesa->store.cmd_used || rmesa->dma.flush ) {   \
 165       r200Flush( rmesa->glCtx );                        \
 166    }                                                    \
 167 } while (0)
 168
 169 /* Command lengths.  Note that any time you ensure ELTS_BUFSZ or VBUF_BUFSZ
 170  * are available, you will also be adding an rmesa->state.max_state_size because
 171  * r200EmitState is called from within r200EmitVbufPrim and r200FlushElts.
 172  */
 173 #define AOS_BUFSZ(nr)   ((3 + ((nr / 2) * 3) + ((nr & 1) * 2)) * sizeof(int))
 174 #define VERT_AOS_BUFSZ  (5 * sizeof(int))
 175 #define ELTS_BUFSZ(nr)  (12 + nr * 2)
 176 #define VBUF_BUFSZ      (3 * sizeof(int))
 177
 178 /* Ensure that a minimum amount of space is available in the command buffer.
 179  * This is used to ensure atomicity of state updates with the rendering requests
 180  * that rely on them.
 181  *
 182  * An alternative would be to implement a "soft lock" such that when the buffer
 183  * wraps at an inopportune time, we grab the lock, flush the current buffer,
 184  * and hang on to the lock until the critical section is finished and we flush
 185  * the buffer again and unlock.
 186  */
 187 static __inline void r200EnsureCmdBufSpace( r200ContextPtr rmesa, int bytes )
 188 {
 189    if (rmesa->store.cmd_used + bytes > R200_CMD_BUF_SZ)
 190       r200FlushCmdBuf( rmesa, __FUNCTION__ );
 191    assert( bytes <= R200_CMD_BUF_SZ );
 192 }
 193
 194 /* Alloc space in the command buffer
 195  */
 196 static __inline char *r200AllocCmdBuf( r200ContextPtr rmesa,
 197                                          int bytes, const char *where )
 198 {
 199    char * head;
 200
 201    if (rmesa->store.cmd_used + bytes > R200_CMD_BUF_SZ)
 202       r200FlushCmdBuf( rmesa, where );
 203
 204    head = rmesa->store.cmd_buf + rmesa->store.cmd_used;
 205    rmesa->store.cmd_used += bytes;
 206    assert( rmesa->store.cmd_used <= R200_CMD_BUF_SZ );
 207    return head;
 208 }
 209
 210 #endif /* __R200_IOCTL_H__ */