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(int32_t))
  45
  46
  47 extern drmBufPtr r128GetBufferLocked( r128ContextPtr rmesa );
  48 extern void r128FlushVerticesLocked( r128ContextPtr rmesa );
  49
  50 static __inline void *r128AllocDmaLow( r128ContextPtr rmesa, int bytes )
  51 {
  52    int32_t *head;
  53
  54    if ( !rmesa->vert_buf ) {
  55       LOCK_HARDWARE( rmesa );
  56       rmesa->vert_buf = r128GetBufferLocked( rmesa );
  57       UNLOCK_HARDWARE( rmesa );
  58    } else if ( rmesa->vert_buf->used + bytes > rmesa->vert_buf->total ) {
  59       LOCK_HARDWARE( rmesa );
  60       r128FlushVerticesLocked( rmesa );
  61       rmesa->vert_buf = r128GetBufferLocked( rmesa );
  62       UNLOCK_HARDWARE( rmesa );
  63    }
  64
  65    head = (int32_t *)((char *)rmesa->vert_buf->address + rmesa->vert_buf->used);
  66    rmesa->vert_buf->used += bytes;
  67    return head;
  68 }
  69
  70 extern void r128FireBlitLocked( r128ContextPtr rmesa, drmBufPtr buffer,
  71                                 GLint offset, GLint pitch, GLint format,
  72                                 GLint x, GLint y, GLint width, GLint height );
  73
  74 extern void r128WriteDepthSpanLocked( r128ContextPtr rmesa,
  75                                       GLuint n, GLint x, GLint y,
  76                                       const GLdepth depth[],
  77                                       const GLubyte mask[] );
  78 extern void r128WriteDepthPixelsLocked( r128ContextPtr rmesa, GLuint n,
  79                                         const GLint x[], const GLint y[],
  80                                         const GLdepth depth[],
  81                                         const GLubyte mask[] );
  82 extern void r128ReadDepthSpanLocked( r128ContextPtr rmesa,
  83                                      GLuint n, GLint x, GLint y );
  84 extern void r128ReadDepthPixelsLocked( r128ContextPtr rmesa, GLuint n,
  85                                        const GLint x[], const GLint y[] );
  86
  87 extern void r128CopyBuffer( const __DRIdrawablePrivate *dPriv );
  88 extern void r128PageFlip( const __DRIdrawablePrivate *dPriv );
  89 void r128WaitForVBlank( r128ContextPtr rmesa );
  90
  91 extern void r128WaitForIdleLocked( r128ContextPtr rmesa );
  92
  93
  94 extern void r128InitIoctlFuncs( struct dd_function_table *functions );
  95
  96
  97 /* ================================================================
  98  * Helper macros:
  99  */
 100
 101 #define FLUSH_BATCH( rmesa )                                            \
 102 do {                                                                    \
 103    if ( R128_DEBUG & DEBUG_VERBOSE_IOCTL )                              \
 104       fprintf( stderr, "FLUSH_BATCH in %s\n", __FUNCTION__ );           \
 105    if ( rmesa->vert_buf ) {                                             \
 106       r128FlushVertices( rmesa );                                       \
 107    }                                                                    \
 108 } while (0)
 109
 110 /* 64-bit align the next element address, and then make room for the
 111  * next indexed prim packet header.
 112  */
 113 #define ALIGN_NEXT_ELT( rmesa )                                         \
 114 do {                                                                    \
 115    rmesa->next_elt = (GLushort *)                                       \
 116       (((GLuint)rmesa->next_elt + 7) & ~0x7);                           \
 117    rmesa->next_elt = (GLushort *)                                       \
 118       ((GLubyte *)rmesa->next_elt + R128_INDEX_PRIM_OFFSET);            \
 119 } while (0)
 120
 121 #define r128FlushVertices( rmesa )                                      \
 122 do {                                                                    \
 123    LOCK_HARDWARE( rmesa );                                              \
 124    r128FlushVerticesLocked( rmesa );                                    \
 125    UNLOCK_HARDWARE( rmesa );                                            \
 126 } while (0)
 127
 128 #define r128FlushElts( rmesa )                                          \
 129 do {                                                                    \
 130    LOCK_HARDWARE( rmesa );                                              \
 131    r128FlushEltsLocked( rmesa );                                        \
 132    UNLOCK_HARDWARE( rmesa );                                            \
 133 } while (0)
 134
 135 #define r128WaitForIdle( rmesa )                                        \
 136    do {                                                                 \
 137       LOCK_HARDWARE( rmesa );                                           \
 138       r128WaitForIdleLocked( rmesa );                                   \
 139       UNLOCK_HARDWARE( rmesa );                                         \
 140    } while (0)
 141
 142 #endif
 143 #endif /* __R128_IOCTL_H__ */