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

   1 /*
   2 Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
   3
   4 The Weather Channel (TM) funded Tungsten Graphics to develop the
   5 initial release of the Radeon 8500 driver under the XFree86 license.
   6 This notice must be preserved.
   7
   8 Permission is hereby granted, free of charge, to any person obtaining
   9 a copy of this software and associated documentation files (the
  10 "Software"), to deal in the Software without restriction, including
  11 without limitation the rights to use, copy, modify, merge, publish,
  12 distribute, sublicense, and/or sell copies of the Software, and to
  13 permit persons to whom the Software is furnished to do so, subject to
  14 the following conditions:
  15
  16 The above copyright notice and this permission notice (including the
  17 next paragraph) shall be included in all copies or substantial
  18 portions of the Software.
  19
  20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  23 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  24 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27
  28 **************************************************************************/
  29
  30 /*
  31  * Authors:
  32  *   Keith Whitwell <keith@tungstengraphics.com>
  33  */
  34
  35 #include <sched.h>
  36 #include <errno.h>
  37
  38 #include "main/glheader.h"
  39 #include "main/imports.h"
  40 #include "main/macros.h"
  41 #include "main/context.h"
  42 #include "swrast/swrast.h"
  43
  44
  45
  46 #include "radeon_common.h"
  47 #include "r200_context.h"
  48 #include "r200_ioctl.h"
  49 #include "radeon_reg.h"
  50
  51 #include "vblank.h"
  52
  53 #define R200_TIMEOUT             512
  54 #define R200_IDLE_RETRY           16
  55
  56 /* ================================================================
  57  * Buffer clear
  58  */
  59 static void r200Clear( struct gl_context *ctx, GLbitfield mask )
  60 {
  61    r200ContextPtr rmesa = R200_CONTEXT(ctx);
  62    GLuint flags = 0;
  63    GLuint orig_mask = mask;
  64
  65    if ( R200_DEBUG & RADEON_IOCTL ) {
  66            if (rmesa->radeon.sarea)
  67                fprintf( stderr, "r200Clear %x %d\n", mask, rmesa->radeon.sarea->pfCurrentPage);
  68            else
  69                fprintf( stderr, "r200Clear %x radeon->sarea is NULL\n", mask);
  70    }
  71
  72    radeonFlush( ctx );
  73
  74    if ( mask & BUFFER_BIT_FRONT_LEFT ) {
  75       flags |= RADEON_FRONT;
  76       mask &= ~BUFFER_BIT_FRONT_LEFT;
  77    }
  78
  79    if ( mask & BUFFER_BIT_BACK_LEFT ) {
  80       flags |= RADEON_BACK;
  81       mask &= ~BUFFER_BIT_BACK_LEFT;
  82    }
  83
  84    if ( mask & BUFFER_BIT_DEPTH ) {
  85       flags |= RADEON_DEPTH;
  86       mask &= ~BUFFER_BIT_DEPTH;
  87    }
  88
  89    if ( (mask & BUFFER_BIT_STENCIL) ) {
  90       flags |= RADEON_STENCIL;
  91       mask &= ~BUFFER_BIT_STENCIL;
  92    }
  93
  94    if ( mask ) {
  95       if (R200_DEBUG & RADEON_FALLBACKS)
  96          fprintf(stderr, "%s: swrast clear, mask: %x\n", __FUNCTION__, mask);
  97       _swrast_Clear( ctx, mask );
  98    }
  99
 100    if ( !flags )
 101       return;
 102
 103    if (rmesa->using_hyperz) {
 104       flags |= RADEON_USE_COMP_ZBUF;
 105 /*      if (rmesa->radeon.radeonScreen->chip_family == CHIP_FAMILY_R200)
 106          flags |= RADEON_USE_HIERZ; */
 107       if (!((flags & RADEON_DEPTH) && (flags & RADEON_STENCIL) &&
 108             ((rmesa->radeon.state.stencil.clear & R200_STENCIL_WRITE_MASK) == R200_STENCIL_WRITE_MASK))) {
 109           flags |= RADEON_CLEAR_FASTZ;
 110       }
 111    }
 112
 113    radeonUserClear(ctx, orig_mask);
 114 }
 115
 116 GLboolean r200IsGartMemory( r200ContextPtr rmesa, const GLvoid *pointer,
 117                            GLint size )
 118 {
 119    ptrdiff_t offset = (char *)pointer - (char *)rmesa->radeon.radeonScreen->gartTextures.map;
 120    int valid = (size >= 0 &&
 121                 offset >= 0 &&
 122                 offset + size < rmesa->radeon.radeonScreen->gartTextures.size);
 123
 124    if (R200_DEBUG & RADEON_IOCTL)
 125       fprintf(stderr, "r200IsGartMemory( %p ) : %d\n", pointer, valid );
 126
 127    return valid;
 128 }
 129
 130
 131 GLuint r200GartOffsetFromVirtual( r200ContextPtr rmesa, const GLvoid *pointer )
 132 {
 133    ptrdiff_t offset = (char *)pointer - (char *)rmesa->radeon.radeonScreen->gartTextures.map;
 134
 135    if (offset < 0 || offset > rmesa->radeon.radeonScreen->gartTextures.size)
 136       return ~0;
 137    else
 138       return rmesa->radeon.radeonScreen->gart_texture_offset + offset;
 139 }
 140
 141
 142
 143 void r200InitIoctlFuncs( struct dd_function_table *functions )
 144 {
 145     functions->Clear = r200Clear;
 146     functions->Finish = radeonFinish;
 147     functions->Flush = radeonFlush;
 148 }
 149