src/mesa/drivers/dri/r128/r128_ioctl.h

   1 /* $XFree86: xc/lib/GL/mesa/src/drv/r128/r128_ioctl.h,v 1.6 2002/12/16 16:18:53 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  *   Gareth Hughes <gareth@valinux.com>
  32  *
  33  */
  34
  35 #ifndef __R128_IOCTL_H__
  36 #define __R128_IOCTL_H__
  37
  38 #ifdef GLX_DIRECT_RENDERING
  39
  40 #include "r128_dri.h"
  41 #include "r128_reg.h"
  42 #include "r128_lock.h"
  43
  44 #define R128_BUFFER_MAX_DWORDS  (R128_BUFFER_SIZE / sizeof(uint32_t))
  45
  46
  47 extern drmBufPtr r128GetBufferLocked( r128ContextPtr rmesa );
  48 extern void r128FlushVerticesLocked( r128ContextPtr rmesa );
  49
  50 static __inline void *r128AllocDmaLow( r128ContextPtr rmesa, int count,
  51                                        int vert_size )
  52 {
  53    uint32_t *head;
  54    int bytes = count * vert_size;
  55
  56    if ( !rmesa->vert_buf ) {
  57       LOCK_HARDWARE( rmesa );
  58       rmesa->vert_buf = r128GetBufferLocked( rmesa );
  59       UNLOCK_HARDWARE( rmesa );
  60    } else if ( rmesa->vert_buf->used + bytes > rmesa->vert_buf->total ) {
  61       LOCK_HARDWARE( rmesa );
  62       r128FlushVerticesLocked( rmesa );
  63       rmesa->vert_buf = r128GetBufferLocked( rmesa );
  64       UNLOCK_HARDWARE( rmesa );
  65    }
  66
  67    head = (uint32_t *)((char *)rmesa->vert_buf->address + rmesa->vert_buf->used);
  68    rmesa->vert_buf->used += bytes;
  69    rmesa->num_verts += count;
  70
  71    return head;
  72 }
  73
  74 extern void r128FireBlitLocked( r128ContextPtr rmesa, drmBufPtr buffer,
  75                                 GLint offset, GLint pitch, GLint format,
  76                                 GLint x, GLint y, GLint width, GLint height );
  77
  78 extern void r128WriteDepthSpanLocked( r128ContextPtr rmesa,
  79                                       GLuint n, GLint x, GLint y,
  80                                       const GLdepth depth[],
  81                                       const GLubyte mask[] );
  82 extern void r128WriteDepthPixelsLocked( r128ContextPtr rmesa, GLuint n,
  83                                         const GLint x[], const GLint y[],
  84                                         const GLdepth depth[],
  85                                         const GLubyte mask[] );
  86 extern void r128ReadDepthSpanLocked( r128ContextPtr rmesa,
  87                                      GLuint n, GLint x, GLint y );
  88 extern void r128ReadDepthPixelsLocked( r128ContextPtr rmesa, GLuint n,
  89                                        const GLint x[], const GLint y[] );
  90
  91 extern void r128CopyBuffer( const __DRIdrawablePrivate *dPriv );
  92 extern void r128PageFlip( const __DRIdrawablePrivate *dPriv );
  93 void r128WaitForVBlank( r128ContextPtr rmesa );
  94
  95 extern void r128WaitForIdleLocked( r128ContextPtr rmesa );
  96
  97
  98 extern void r128InitIoctlFuncs( struct dd_function_table *functions );
  99
 100
 101 /* ================================================================
 102  * Helper macros:
 103  */
 104
 105 #define FLUSH_BATCH( rmesa )                                            \
 106 do {                                                                    \
 107    if ( R128_DEBUG & DEBUG_VERBOSE_IOCTL )                              \
 108       fprintf( stderr, "FLUSH_BATCH in %s\n", __FUNCTION__ );           \
 109    if ( rmesa->vert_buf ) {                                             \
 110       r128FlushVertices( rmesa );                                       \
 111    }                                                                    \
 112 } while (0)
 113
 114 /* 64-bit align the next element address, and then make room for the
 115  * next indexed prim packet header.
 116  */
 117 #define ALIGN_NEXT_ELT( rmesa )                                         \
 118 do {                                                                    \
 119    rmesa->next_elt = (GLushort *)                                       \
 120       (((GLuint)rmesa->next_elt + 7) & ~0x7);                           \
 121    rmesa->next_elt = (GLushort *)                                       \
 122       ((GLubyte *)rmesa->next_elt + R128_INDEX_PRIM_OFFSET);            \
 123 } while (0)
 124
 125 #define r128FlushVertices( rmesa )                                      \
 126 do {                                                                    \
 127    LOCK_HARDWARE( rmesa );                                              \
 128    r128FlushVerticesLocked( rmesa );                                    \
 129    UNLOCK_HARDWARE( rmesa );                                            \
 130 } while (0)
 131
 132 #define r128FlushElts( rmesa )                                          \
 133 do {                                                                    \
 134    LOCK_HARDWARE( rmesa );                                              \
 135    r128FlushEltsLocked( rmesa );                                        \
 136    UNLOCK_HARDWARE( rmesa );                                            \
 137 } while (0)
 138
 139 #define r128WaitForIdle( rmesa )                                        \
 140    do {                                                                 \
 141       LOCK_HARDWARE( rmesa );                                           \
 142       r128WaitForIdleLocked( rmesa );                                   \
 143       UNLOCK_HARDWARE( rmesa );                                         \
 144    } while (0)
 145
 146 #endif
 147 #endif /* __R128_IOCTL_H__ */