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 #include "r128_dri.h"
  39 #include "r128_reg.h"
  40 #include "r128_lock.h"
  41
  42 #define R128_BUFFER_MAX_DWORDS  (R128_BUFFER_SIZE / sizeof(u_int32_t))
  43
  44
  45 extern drmBufPtr r128GetBufferLocked( r128ContextPtr rmesa );
  46 extern void r128FlushVerticesLocked( r128ContextPtr rmesa );
  47
  48 static __inline void *r128AllocDmaLow( r128ContextPtr rmesa, int count,
  49                                        int vert_size )
  50 {
  51    u_int32_t *head;
  52    int bytes = count * vert_size;
  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 = (u_int32_t *)((char *)rmesa->vert_buf->address + rmesa->vert_buf->used);
  66    rmesa->vert_buf->used += bytes;
  67    rmesa->num_verts += count;
  68
  69    return head;
  70 }
  71
  72 extern void r128FireBlitLocked( r128ContextPtr rmesa, drmBufPtr buffer,
  73                                 GLint offset, GLint pitch, GLint format,
  74                                 GLint x, GLint y, GLint width, GLint height );
  75
  76 extern void r128WriteDepthSpanLocked( r128ContextPtr rmesa,
  77                                       GLuint n, GLint x, GLint y,
  78                                       const GLuint depth[],
  79                                       const GLubyte mask[] );
  80 extern void r128WriteDepthPixelsLocked( r128ContextPtr rmesa, GLuint n,
  81                                         const GLint x[], const GLint y[],
  82                                         const GLuint depth[],
  83                                         const GLubyte mask[] );
  84 extern void r128ReadDepthSpanLocked( r128ContextPtr rmesa,
  85                                      GLuint n, GLint x, GLint y );
  86 extern void r128ReadDepthPixelsLocked( r128ContextPtr rmesa, GLuint n,
  87                                        const GLint x[], const GLint y[] );
  88
  89 extern void r128CopyBuffer( const __DRIdrawablePrivate *dPriv );
  90 extern void r128PageFlip( const __DRIdrawablePrivate *dPriv );
  91 void r128WaitForVBlank( r128ContextPtr rmesa );
  92
  93 extern void r128WaitForIdleLocked( r128ContextPtr rmesa );
  94
  95
  96 extern void r128InitIoctlFuncs( struct dd_function_table *functions );
  97
  98
  99 /* ================================================================
 100  * Helper macros:
 101  */
 102
 103 #define FLUSH_BATCH( rmesa )                                            \
 104 do {                                                                    \
 105    if ( R128_DEBUG & DEBUG_VERBOSE_IOCTL )                              \
 106       fprintf( stderr, "FLUSH_BATCH in %s\n", __FUNCTION__ );           \
 107    if ( rmesa->vert_buf ) {                                             \
 108       r128FlushVertices( rmesa );                                       \
 109    }                                                                    \
 110 } while (0)
 111
 112 /* 64-bit align the next element address, and then make room for the
 113  * next indexed prim packet header.
 114  */
 115 #define ALIGN_NEXT_ELT( rmesa )                                         \
 116 do {                                                                    \
 117    rmesa->next_elt = (GLushort *)                                       \
 118       (((GLuint)rmesa->next_elt + 7) & ~0x7);                           \
 119    rmesa->next_elt = (GLushort *)                                       \
 120       ((GLubyte *)rmesa->next_elt + R128_INDEX_PRIM_OFFSET);            \
 121 } while (0)
 122
 123 #define r128FlushVertices( rmesa )                                      \
 124 do {                                                                    \
 125    LOCK_HARDWARE( rmesa );                                              \
 126    r128FlushVerticesLocked( rmesa );                                    \
 127    UNLOCK_HARDWARE( rmesa );                                            \
 128 } while (0)
 129
 130 #define r128FlushElts( rmesa )                                          \
 131 do {                                                                    \
 132    LOCK_HARDWARE( rmesa );                                              \
 133    r128FlushEltsLocked( rmesa );                                        \
 134    UNLOCK_HARDWARE( rmesa );                                            \
 135 } while (0)
 136
 137 #define r128WaitForIdle( rmesa )                                        \
 138    do {                                                                 \
 139       LOCK_HARDWARE( rmesa );                                           \
 140       r128WaitForIdleLocked( rmesa );                                   \
 141       UNLOCK_HARDWARE( rmesa );                                         \
 142    } while (0)
 143
 144 #endif /* __R128_IOCTL_H__ */