plugins/gpu_unai/gpulib_if.cpp

   1 /***************************************************************************
   2 *   Copyright (C) 2010 PCSX4ALL Team                                      *
   3 *   Copyright (C) 2010 Unai                                               *
   4 *   Copyright (C) 2011 notaz                                              *
   5 *                                                                         *
   6 *   This program is free software; you can redistribute it and/or modify  *
   7 *   it under the terms of the GNU General Public License as published by  *
   8 *   the Free Software Foundation; either version 2 of the License, or     *
   9 *   (at your option) any later version.                                   *
  10 *                                                                         *
  11 *   This program is distributed in the hope that it will be useful,       *
  12 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  13 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  14 *   GNU General Public License for more details.                          *
  15 *                                                                         *
  16 *   You should have received a copy of the GNU General Public License     *
  17 *   along with this program; if not, write to the                         *
  18 *   Free Software Foundation, Inc.,                                       *
  19 *   51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA.           *
  20 ***************************************************************************/
  21
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include "../gpulib/gpu.h"
  26
  27 #define u8 uint8_t
  28 #define s8 int8_t
  29 #define u16 uint16_t
  30 #define s16 int16_t
  31 #define u32 uint32_t
  32 #define s32 int32_t
  33 #define s64 int64_t
  34
  35 #define INLINE static
  36
  37 #define FRAME_BUFFER_SIZE  (1024*512*2)
  38 #define FRAME_WIDTH        1024
  39 #define FRAME_HEIGHT       512
  40 #define FRAME_OFFSET(x,y)  (((y)<<10)+(x))
  41
  42 #define isSkip 0 /* skip frame (info coming from GPU) */
  43 #define alt_fps 0
  44 static int linesInterlace;  /* internal lines interlace */
  45 static int force_interlace;
  46
  47 static bool light = true; /* lighting */
  48 static bool blend = true; /* blending */
  49 static bool FrameToRead = false; /* load image in progress */
  50 static bool FrameToWrite = false; /* store image in progress */
  51
  52 static bool enableAbbeyHack = false; /* Abe's Odyssey hack */
  53
  54 static u8 BLEND_MODE;
  55 static u8 TEXT_MODE;
  56 static u8 Masking;
  57
  58 static u16 PixelMSB;
  59 static u16 PixelData;
  60
  61 ///////////////////////////////////////////////////////////////////////////////
  62 //  GPU Global data
  63 ///////////////////////////////////////////////////////////////////////////////
  64
  65 //  Dma Transfers info
  66 static s32              px,py;
  67 static s32              x_end,y_end;
  68 static u16*  pvram;
  69
  70 static s32 PacketCount;
  71 static s32 PacketIndex;
  72
  73 //  Rasterizer status
  74 static u32 TextureWindow [4];
  75 static u32 DrawingArea   [4];
  76 static u32 DrawingOffset [2];
  77
  78 static u16* TBA;
  79 static u16* CBA;
  80
  81 //  Inner Loops
  82 static s32   u4, du4;
  83 static s32   v4, dv4;
  84 static s32   r4, dr4;
  85 static s32   g4, dg4;
  86 static s32   b4, db4;
  87 static u32   lInc;
  88 static u32   tInc, tMsk;
  89
  90 union GPUPacket
  91 {
  92         u32 U4[16];
  93         s32 S4[16];
  94         u16 U2[32];
  95         s16 S2[32];
  96         u8  U1[64];
  97         s8  S1[64];
  98 };
  99
 100 static GPUPacket PacketBuffer;
 101 static u16  *GPU_FrameBuffer;
 102 static u32   GPU_GP1;
 103
 104 ///////////////////////////////////////////////////////////////////////////////
 105
 106 #include "../gpu_unai/gpu_fixedpoint.h"
 107
 108 //  Inner loop driver instanciation file
 109 #include "../gpu_unai/gpu_inner.h"
 110
 111 //  GPU Raster Macros
 112 #define GPU_RGB16(rgb)        ((((rgb)&0xF80000)>>9)|(((rgb)&0xF800)>>6)|(((rgb)&0xF8)>>3))
 113
 114 #define GPU_EXPANDSIGN_POLY(x)  (((s32)(x)<<20)>>20)
 115 //#define GPU_EXPANDSIGN_POLY(x)  (((s32)(x)<<21)>>21)
 116 #define GPU_EXPANDSIGN_SPRT(x)  (((s32)(x)<<21)>>21)
 117
 118 //#define       GPU_TESTRANGE(x)      { if((u32)(x+1024) > 2047) return; }
 119 #define GPU_TESTRANGE(x)      { if ((x<-1023) || (x>1023)) return; }
 120
 121 #define GPU_SWAP(a,b,t) {(t)=(a);(a)=(b);(b)=(t);}
 122
 123 // GPU internal image drawing functions
 124 #include "../gpu_unai/gpu_raster_image.h"
 125
 126 // GPU internal line drawing functions
 127 #include "../gpu_unai/gpu_raster_line.h"
 128
 129 // GPU internal polygon drawing functions
 130 #include "../gpu_unai/gpu_raster_polygon.h"
 131
 132 // GPU internal sprite drawing functions
 133 #include "../gpu_unai/gpu_raster_sprite.h"
 134
 135 // GPU command buffer execution/store
 136 #include "../gpu_unai/gpu_command.h"
 137
 138 #define unai_do_prim(cmd, list, len) \
 139   memcpy(PacketBuffer.U4, list, (len) * 4); \
 140   gpuSendPacketFunction(cmd)
 141
 142 /////////////////////////////////////////////////////////////////////////////
 143
 144 int renderer_init(void)
 145 {
 146         GPU_FrameBuffer = (u16 *)gpu.vram;
 147
 148         // s_invTable
 149         for(int i=1;i<=(1<<TABLE_BITS);++i)
 150         {
 151                 double v = 1.0 / double(i);
 152                 #ifdef GPU_TABLE_10_BITS
 153                 v *= double(0xffffffff>>1);
 154                 #else
 155                 v *= double(0x80000000);
 156                 #endif
 157                 s_invTable[i-1]=s32(v);
 158         }
 159
 160         return 0;
 161 }
 162
 163 extern const unsigned char cmd_lengths[256];
 164
 165 int do_cmd_list(unsigned int *list, int list_len, int *last_cmd)
 166 {
 167   unsigned int cmd = 0, len;
 168   unsigned int *list_start = list;
 169   unsigned int *list_end = list + list_len;
 170
 171   linesInterlace = force_interlace;
 172 #ifndef __ARM_ARCH_7A__ /* XXX */
 173   linesInterlace |= gpu.status.interlace;
 174 #endif
 175
 176   for (; list < list_end; list += 1 + len)
 177   {
 178     cmd = *list >> 24;
 179     len = cmd_lengths[cmd];
 180     if (list + 1 + len > list_end) {
 181       cmd = -1;
 182       break;
 183     }
 184
 185 #ifndef TEST
 186     if (cmd == 0xa0 || cmd == 0xc0)
 187       break; // image i/o, forward to upper layer
 188     else if ((cmd & 0xf8) == 0xe0)
 189       gpu.ex_regs[cmd & 7] = list[0];
 190 #endif
 191
 192     switch(cmd)
 193     {
 194       case 0x48 ... 0x4F:
 195       {
 196         u32 num_vertexes = 1;
 197         u32 *list_position = &(list[2]);
 198         u32 PRIM = cmd;
 199
 200         memcpy(&PacketBuffer.U4[0], list, 4 * 3);
 201         gpuDrawLF(gpuPixelDrivers [ (Blending_Mode | Masking | Blending | (PixelMSB>>3)) >> 1]);
 202
 203         while(1)
 204         {
 205           PacketBuffer.U4[1] = PacketBuffer.U4[2];
 206           PacketBuffer.U4[2] = *list_position++;
 207           gpuDrawLF(gpuPixelDrivers [ (Blending_Mode | Masking | Blending | (PixelMSB>>3)) >> 1]);
 208
 209           num_vertexes++;
 210           if((*list_position & 0xf000f000) == 0x50005000 || list_position >= list_end)
 211             break;
 212         }
 213
 214         len += (num_vertexes - 2);
 215         break;
 216       }
 217
 218       case 0x58 ... 0x5F:
 219       {
 220         u32 num_vertexes = 1;
 221         u32 *list_position = &(list[2]);
 222         u32 PRIM = cmd;
 223
 224         memcpy(&PacketBuffer.U4[0], list, 4 * 4);
 225         gpuDrawLG(gpuPixelDrivers [ (Blending_Mode | Masking | Blending | (PixelMSB>>3)) >> 1]);
 226
 227         while(1)
 228         {
 229           PacketBuffer.U4[0] = PacketBuffer.U4[2];
 230           PacketBuffer.U4[1] = PacketBuffer.U4[3];
 231           PacketBuffer.U4[2] = *list_position++;
 232           PacketBuffer.U4[3] = *list_position++;
 233           gpuDrawLG(gpuPixelDrivers [ (Blending_Mode | Masking | Blending | (PixelMSB>>3)) >> 1]);
 234
 235           num_vertexes++;
 236           if((*list_position & 0xf000f000) == 0x50005000 || list_position >= list_end)
 237             break;
 238         }
 239
 240         len += (num_vertexes - 2) * 2;
 241         break;
 242       }
 243
 244 #ifdef TEST
 245       case 0xA0:          //  sys -> vid
 246       {
 247         u32 load_width = list[2] & 0xffff;
 248         u32 load_height = list[2] >> 16;
 249         u32 load_size = load_width * load_height;
 250
 251         len += load_size / 2;
 252         break;
 253       }
 254 #endif
 255
 256       default:
 257         unai_do_prim(cmd, list, len + 1);
 258         break;
 259     }
 260   }
 261
 262   gpu.ex_regs[1] &= ~0x1ff;
 263   gpu.ex_regs[1] |= GPU_GP1 & 0x1ff;
 264
 265   *last_cmd = cmd;
 266   return list - list_start;
 267 }
 268
 269 void renderer_sync_ecmds(uint32_t *ecmds)
 270 {
 271   unai_do_prim(0xe1, &ecmds[1], 1);
 272   unai_do_prim(0xe2, &ecmds[2], 1);
 273   unai_do_prim(0xe3, &ecmds[3], 1);
 274   unai_do_prim(0xe4, &ecmds[4], 1);
 275   unai_do_prim(0xe5, &ecmds[5], 1);
 276   unai_do_prim(0xe6, &ecmds[6], 1);
 277 }
 278
 279 void renderer_update_caches(int x, int y, int w, int h)
 280 {
 281 }
 282
 283 void renderer_flush_queues(void)
 284 {
 285 }
 286
 287 void renderer_set_interlace(int enable, int is_odd)
 288 {
 289 }
 290
 291 #ifndef TEST
 292
 293 #include "../../frontend/plugin_lib.h"
 294
 295 void renderer_set_config(const struct rearmed_cbs *cbs)
 296 {
 297   force_interlace = cbs->gpu_unai.lineskip;
 298   enableAbbeyHack = cbs->gpu_unai.abe_hack;
 299   light = !cbs->gpu_unai.no_light;
 300   blend = !cbs->gpu_unai.no_blend;
 301 }
 302
 303 #endif