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_ioctl.h"
  53 #include "r300_render.h"
  54 #include "r300_swtcl.h"
  55
  56 GLuint r300VAPInputCntl0(GLcontext * ctx, GLuint InputsRead)
  57 {
  58         /* No idea what this value means. I have seen other values written to
  59          * this register... */
  60         return 0x5555;
  61 }
  62
  63 GLuint r300VAPInputCntl1(GLcontext * ctx, GLuint InputsRead)
  64 {
  65         GLuint i, vic_1 = 0;
  66
  67         if (InputsRead & (1 << VERT_ATTRIB_POS))
  68                 vic_1 |= R300_INPUT_CNTL_POS;
  69
  70         if (InputsRead & (1 << VERT_ATTRIB_NORMAL))
  71                 vic_1 |= R300_INPUT_CNTL_NORMAL;
  72
  73         if (InputsRead & (1 << VERT_ATTRIB_COLOR0))
  74                 vic_1 |= R300_INPUT_CNTL_COLOR;
  75
  76         for (i = 0; i < ctx->Const.MaxTextureUnits; i++)
  77                 if (InputsRead & (1 << (VERT_ATTRIB_TEX0 + i))) {
  78                         vic_1 |= R300_INPUT_CNTL_TC0 << i;
  79                 }
  80
  81         return vic_1;
  82 }
  83
  84 GLuint r300VAPOutputCntl0(GLcontext * ctx, GLuint vp_writes, GLuint fp_reads)
  85 {
  86         GLuint ret = 0;
  87
  88         if (vp_writes & (1 << VERT_RESULT_HPOS))
  89                 ret |= R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT;
  90
  91         if (vp_writes & (1 << VERT_RESULT_COL0) && fp_reads & FRAG_BIT_COL0)
  92                 ret |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT;
  93
  94         if (vp_writes & (1 << VERT_RESULT_COL1) && fp_reads & FRAG_BIT_COL1)
  95                 ret |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_1_PRESENT;
  96
  97         /* Two sided lighting works only if all 4 colors are written */
  98         if (vp_writes & (1 << VERT_RESULT_BFC0) || vp_writes & (1 << VERT_RESULT_BFC1))
  99                 ret |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT | R300_VAP_OUTPUT_VTX_FMT_0__COLOR_1_PRESENT |
 100                            R300_VAP_OUTPUT_VTX_FMT_0__COLOR_2_PRESENT | R300_VAP_OUTPUT_VTX_FMT_0__COLOR_3_PRESENT;
 101
 102         if (vp_writes & (1 << VERT_RESULT_PSIZ))
 103                 ret |= R300_VAP_OUTPUT_VTX_FMT_0__PT_SIZE_PRESENT;
 104
 105         return ret;
 106 }
 107
 108 GLuint r300VAPOutputCntl1(GLcontext * ctx, GLuint vp_writes, GLuint fp_reads)
 109 {
 110         GLuint i, ret = 0, first_free_texcoord = 0;
 111
 112         for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
 113                 if (vp_writes & (1 << (VERT_RESULT_TEX0 + i)) && fp_reads & FRAG_BIT_TEX(i)) {
 114                         ret |= (4 << (3 * first_free_texcoord));
 115                         ++first_free_texcoord;
 116                 }
 117         }
 118
 119         if (fp_reads & FRAG_BIT_WPOS) {
 120                 ret |= (4 << (3 * first_free_texcoord));
 121                 ++first_free_texcoord;
 122         }
 123
 124         if (vp_writes & (1 << VERT_RESULT_FOGC) && fp_reads & FRAG_BIT_FOGC) {
 125                 ret |= 4 << (3 * first_free_texcoord);
 126         }
 127
 128         if (first_free_texcoord > 8) {
 129                 fprintf(stderr, "\tout of free texcoords\n");
 130                 _mesa_exit(-1);
 131         }
 132
 133         return ret;
 134 }
 135
 136 GLboolean r300EmitArrays(GLcontext * ctx)
 137 {
 138         r300ContextPtr r300 = R300_CONTEXT(ctx);
 139         struct r300_vertex_buffer *vbuf = &r300->vbuf;
 140         GLuint InputsRead, OutputsWritten;
 141
 142         r300ChooseSwtclVertexFormat(ctx, &InputsRead, &OutputsWritten);
 143
 144         r300SwitchFallback(ctx, R300_FALLBACK_AOS_LIMIT, vbuf->num_attribs > R300_MAX_AOS_ARRAYS);
 145         if (r300->fallback & R300_RASTER_FALLBACK_MASK)
 146                 return GL_FALSE;
 147
 148         {
 149                 struct vertex_buffer *mesa_vb = &TNL_CONTEXT(ctx)->vb;
 150                 GLuint attr, i;
 151
 152                 for (i = 0; i < vbuf->num_attribs; i++) {
 153                         attr = vbuf->attribs[i].element;
 154                         rcommon_emit_vector(ctx, &r300->radeon.tcl.aos[i], mesa_vb->AttribPtr[attr]->data,
 155                                         mesa_vb->AttribPtr[attr]->size, mesa_vb->AttribPtr[attr]->stride, mesa_vb->Count);
 156                 }
 157
 158                 r300->radeon.tcl.aos_count = vbuf->num_attribs;
 159
 160                 /* Fill index buffer info */
 161                 r300->ind_buf.ptr = mesa_vb->Elts;
 162                 r300->ind_buf.is_32bit = GL_TRUE;
 163                 r300->ind_buf.free_needed = GL_FALSE;
 164         }
 165
 166         r300SetupVAP(ctx, InputsRead, OutputsWritten);
 167
 168         return GL_TRUE;
 169 }
 170
 171 void r300EmitCacheFlush(r300ContextPtr rmesa)
 172 {
 173         BATCH_LOCALS(&rmesa->radeon);
 174
 175         BEGIN_BATCH_NO_AUTOSTATE(4);
 176         OUT_BATCH_REGVAL(R300_RB3D_DSTCACHE_CTLSTAT,
 177                 R300_RB3D_DSTCACHE_CTLSTAT_DC_FREE_FREE_3D_TAGS |
 178                 R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D);
 179         OUT_BATCH_REGVAL(R300_ZB_ZCACHE_CTLSTAT,
 180                 R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE |
 181                 R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE);
 182         END_BATCH();
 183         COMMIT_BATCH();
 184 }