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 #define R200_TIMEOUT             512
  52 #define R200_IDLE_RETRY           16
  53
  54 /* ================================================================
  55  * Buffer clear
  56  */
  57 static void r200Clear( struct gl_context *ctx, GLbitfield mask )
  58 {
  59    r200ContextPtr rmesa = R200_CONTEXT(ctx);
  60    GLuint flags = 0;
  61    GLuint orig_mask = mask;
  62
  63    if ( R200_DEBUG & RADEON_IOCTL ) {
  64            if (rmesa->radeon.sarea)
  65                fprintf( stderr, "r200Clear %x %d\n", mask, rmesa->radeon.sarea->pfCurrentPage);
  66            else
  67                fprintf( stderr, "r200Clear %x radeon->sarea is NULL\n", mask);
  68    }
  69
  70    radeonFlush( ctx );
  71
  72    if ( mask & BUFFER_BIT_FRONT_LEFT ) {
  73       flags |= RADEON_FRONT;
  74       mask &= ~BUFFER_BIT_FRONT_LEFT;
  75    }
  76
  77    if ( mask & BUFFER_BIT_BACK_LEFT ) {
  78       flags |= RADEON_BACK;
  79       mask &= ~BUFFER_BIT_BACK_LEFT;
  80    }
  81
  82    if ( mask & BUFFER_BIT_DEPTH ) {
  83       flags |= RADEON_DEPTH;
  84       mask &= ~BUFFER_BIT_DEPTH;
  85    }
  86
  87    if ( (mask & BUFFER_BIT_STENCIL) ) {
  88       flags |= RADEON_STENCIL;
  89       mask &= ~BUFFER_BIT_STENCIL;
  90    }
  91
  92    if ( mask ) {
  93       if (R200_DEBUG & RADEON_FALLBACKS)
  94          fprintf(stderr, "%s: swrast clear, mask: %x\n", __FUNCTION__, mask);
  95       _swrast_Clear( ctx, mask );
  96    }
  97
  98    if ( !flags )
  99       return;
 100
 101    if (rmesa->using_hyperz) {
 102       flags |= RADEON_USE_COMP_ZBUF;
 103 /*      if (rmesa->radeon.radeonScreen->chip_family == CHIP_FAMILY_R200)
 104          flags |= RADEON_USE_HIERZ; */
 105       if (!((flags & RADEON_DEPTH) && (flags & RADEON_STENCIL) &&
 106             ((rmesa->radeon.state.stencil.clear & R200_STENCIL_WRITE_MASK) == R200_STENCIL_WRITE_MASK))) {
 107           flags |= RADEON_CLEAR_FASTZ;
 108       }
 109    }
 110
 111    radeonUserClear(ctx, orig_mask);
 112 }
 113
 114 GLboolean r200IsGartMemory( r200ContextPtr rmesa, const GLvoid *pointer,
 115                            GLint size )
 116 {
 117    ptrdiff_t offset = (char *)pointer - (char *)rmesa->radeon.radeonScreen->gartTextures.map;
 118    int valid = (size >= 0 &&
 119                 offset >= 0 &&
 120                 offset + size < rmesa->radeon.radeonScreen->gartTextures.size);
 121
 122    if (R200_DEBUG & RADEON_IOCTL)
 123       fprintf(stderr, "r200IsGartMemory( %p ) : %d\n", pointer, valid );
 124
 125    return valid;
 126 }
 127
 128
 129 GLuint r200GartOffsetFromVirtual( r200ContextPtr rmesa, const GLvoid *pointer )
 130 {
 131    ptrdiff_t offset = (char *)pointer - (char *)rmesa->radeon.radeonScreen->gartTextures.map;
 132
 133    if (offset < 0 || offset > rmesa->radeon.radeonScreen->gartTextures.size)
 134       return ~0;
 135    else
 136       return rmesa->radeon.radeonScreen->gart_texture_offset + offset;
 137 }
 138
 139
 140
 141 void r200InitIoctlFuncs( struct dd_function_table *functions )
 142 {
 143     functions->Clear = r200Clear;
 144     functions->Finish = radeonFinish;
 145     functions->Flush = radeonFlush;
 146 }
 147