src/mesa/drivers/dri/r300/r300_emit.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  * \file
  32  *
  33  * \author Keith Whitwell <keith@tungstengraphics.com>
  34  * \author Maciej Cencora <m.cencora@gmail.com>
  35  */
  36
  37 #include "main/glheader.h"
  38 #include "main/mtypes.h"
  39 #include "main/colormac.h"
  40 #include "main/imports.h"
  41 #include "main/macros.h"
  42 #include "main/image.h"
  43
  44 #include "swrast_setup/swrast_setup.h"
  45 #include "math/m_translate.h"
  46 #include "tnl/tnl.h"
  47 #include "tnl/t_context.h"
  48
  49 #include "r300_context.h"
  50 #include "r300_state.h"
  51 #include "r300_emit.h"
  52 #include "r300_render.h"
  53 #include "r300_swtcl.h"
  54
  55 GLuint r300VAPInputCntl0(GLcontext * ctx, GLuint InputsRead)
  56 {
  57         /* No idea what this value means. I have seen other values written to
  58          * this register... */
  59         return 0x5555;
  60 }
  61
  62 GLuint r300VAPInputCntl1(GLcontext * ctx, GLuint InputsRead)
  63 {
  64         GLuint i, vic_1 = 0;
  65
  66         if (InputsRead & (1 << VERT_ATTRIB_POS))
  67                 vic_1 |= R300_INPUT_CNTL_POS;
  68
  69         if (InputsRead & (1 << VERT_ATTRIB_NORMAL))
  70                 vic_1 |= R300_INPUT_CNTL_NORMAL;
  71
  72         if (InputsRead & (1 << VERT_ATTRIB_COLOR0))
  73                 vic_1 |= R300_INPUT_CNTL_COLOR;
  74
  75         for (i = 0; i < ctx->Const.MaxTextureUnits; i++)
  76                 if (InputsRead & (1 << (VERT_ATTRIB_TEX0 + i))) {
  77                         vic_1 |= R300_INPUT_CNTL_TC0 << i;
  78                 }
  79
  80         return vic_1;
  81 }
  82
  83 GLuint r300VAPOutputCntl0(GLcontext * ctx, GLuint vp_writes)
  84 {
  85         GLuint ret = 0;
  86
  87         if (vp_writes & (1 << VERT_RESULT_HPOS))
  88                 ret |= R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT;
  89
  90         if (vp_writes & (1 << VERT_RESULT_COL0))
  91                 ret |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT;
  92
  93         if (vp_writes & (1 << VERT_RESULT_COL1))
  94                 ret |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_1_PRESENT;
  95
  96         /* Two sided lighting works only if all 4 colors are written */
  97         if (vp_writes & (1 << VERT_RESULT_BFC0) || vp_writes & (1 << VERT_RESULT_BFC1))
  98                 ret |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT | R300_VAP_OUTPUT_VTX_FMT_0__COLOR_1_PRESENT |
  99                            R300_VAP_OUTPUT_VTX_FMT_0__COLOR_2_PRESENT | R300_VAP_OUTPUT_VTX_FMT_0__COLOR_3_PRESENT;
 100
 101         if (vp_writes & (1 << VERT_RESULT_PSIZ))
 102                 ret |= R300_VAP_OUTPUT_VTX_FMT_0__PT_SIZE_PRESENT;
 103
 104         return ret;
 105 }
 106
 107 GLuint r300VAPOutputCntl1(GLcontext * ctx, GLuint vp_writes)
 108 {
 109         GLuint i, ret = 0, first_free_texcoord = 0;
 110
 111         for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
 112                 if (vp_writes & (1 << (VERT_RESULT_TEX0 + i))) {
 113                         ret |= (4 << (3 * first_free_texcoord));
 114                         ++first_free_texcoord;
 115                 }
 116         }
 117
 118         if (first_free_texcoord > 8) {
 119                 fprintf(stderr, "\tout of free texcoords\n");
 120                 exit(-1);
 121         }
 122
 123         return ret;
 124 }
 125
 126 void r300EmitCacheFlush(r300ContextPtr rmesa)
 127 {
 128         BATCH_LOCALS(&rmesa->radeon);
 129
 130         BEGIN_BATCH_NO_AUTOSTATE(4);
 131         OUT_BATCH_REGVAL(R300_RB3D_DSTCACHE_CTLSTAT,
 132                 R300_RB3D_DSTCACHE_CTLSTAT_DC_FREE_FREE_3D_TAGS |
 133                 R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D);
 134         OUT_BATCH_REGVAL(R300_ZB_ZCACHE_CTLSTAT,
 135                 R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE |
 136                 R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE);
 137         END_BATCH();
 138         COMMIT_BATCH();
 139 }