nkeynes@284 | 1 | /**
|
nkeynes@561 | 2 | * $Id$
|
nkeynes@284 | 3 | *
|
nkeynes@284 | 4 | * PVR2 (Video) VRAM handling routines (mainly for the 64-bit region)
|
nkeynes@284 | 5 | *
|
nkeynes@284 | 6 | * Copyright (c) 2005 Nathan Keynes.
|
nkeynes@284 | 7 | *
|
nkeynes@284 | 8 | * This program is free software; you can redistribute it and/or modify
|
nkeynes@284 | 9 | * it under the terms of the GNU General Public License as published by
|
nkeynes@284 | 10 | * the Free Software Foundation; either version 2 of the License, or
|
nkeynes@284 | 11 | * (at your option) any later version.
|
nkeynes@284 | 12 | *
|
nkeynes@284 | 13 | * This program is distributed in the hope that it will be useful,
|
nkeynes@284 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
nkeynes@284 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
nkeynes@284 | 16 | * GNU General Public License for more details.
|
nkeynes@284 | 17 | */
|
nkeynes@645 | 18 | #include <string.h>
|
nkeynes@645 | 19 | #include <stdio.h>
|
nkeynes@645 | 20 | #include <errno.h>
|
nkeynes@284 | 21 | #include "pvr2.h"
|
nkeynes@325 | 22 | #include "asic.h"
|
nkeynes@284 | 23 |
|
nkeynes@429 | 24 | extern unsigned char *video_base;
|
nkeynes@284 | 25 |
|
nkeynes@429 | 26 | void pvr2_dma_write( sh4addr_t destaddr, unsigned char *src, uint32_t count )
|
nkeynes@325 | 27 | {
|
nkeynes@325 | 28 | int region;
|
nkeynes@325 | 29 |
|
nkeynes@325 | 30 | switch( destaddr & 0x13800000 ) {
|
nkeynes@325 | 31 | case 0x10000000:
|
nkeynes@325 | 32 | case 0x12000000:
|
nkeynes@325 | 33 | pvr2_ta_write( src, count );
|
nkeynes@325 | 34 | break;
|
nkeynes@325 | 35 | case 0x11000000:
|
nkeynes@325 | 36 | case 0x11800000:
|
nkeynes@325 | 37 | region = MMIO_READ( ASIC, PVRDMARGN1 );
|
nkeynes@325 | 38 | if( region == 0 ) {
|
nkeynes@325 | 39 | pvr2_vram64_write( destaddr, src, count );
|
nkeynes@325 | 40 | } else {
|
nkeynes@502 | 41 | unsigned char *dest = mem_get_region(destaddr);
|
nkeynes@325 | 42 | memcpy( dest, src, count );
|
nkeynes@325 | 43 | }
|
nkeynes@325 | 44 | break;
|
nkeynes@325 | 45 | case 0x10800000:
|
nkeynes@325 | 46 | case 0x12800000:
|
nkeynes@325 | 47 | pvr2_yuv_write( src, count );
|
nkeynes@325 | 48 | break;
|
nkeynes@325 | 49 | case 0x13000000:
|
nkeynes@325 | 50 | case 0x13800000:
|
nkeynes@325 | 51 | region = MMIO_READ( ASIC, PVRDMARGN2 );
|
nkeynes@325 | 52 | if( region == 0 ) {
|
nkeynes@325 | 53 | pvr2_vram64_write( destaddr, src, count );
|
nkeynes@325 | 54 | } else {
|
nkeynes@502 | 55 | unsigned char *dest = mem_get_region(destaddr);
|
nkeynes@325 | 56 | memcpy( dest, src, count );
|
nkeynes@325 | 57 | }
|
nkeynes@325 | 58 | }
|
nkeynes@325 | 59 | }
|
nkeynes@325 | 60 |
|
nkeynes@429 | 61 | void pvr2_vram64_write( sh4addr_t destaddr, unsigned char *src, uint32_t length )
|
nkeynes@284 | 62 | {
|
nkeynes@284 | 63 | int bank_flag = (destaddr & 0x04) >> 2;
|
nkeynes@284 | 64 | uint32_t *banks[2];
|
nkeynes@284 | 65 | uint32_t *dwsrc;
|
nkeynes@284 | 66 | int i;
|
nkeynes@284 | 67 |
|
nkeynes@284 | 68 | destaddr = destaddr & 0x7FFFFF;
|
nkeynes@284 | 69 | if( destaddr + length > 0x800000 ) {
|
nkeynes@284 | 70 | length = 0x800000 - destaddr;
|
nkeynes@284 | 71 | }
|
nkeynes@284 | 72 |
|
nkeynes@284 | 73 | for( i=destaddr & 0xFFFFF000; i < destaddr + length; i+= PAGE_SIZE ) {
|
nkeynes@284 | 74 | texcache_invalidate_page( i );
|
nkeynes@284 | 75 | }
|
nkeynes@284 | 76 |
|
nkeynes@284 | 77 | banks[0] = ((uint32_t *)(video_base + ((destaddr & 0x007FFFF8) >>1)));
|
nkeynes@284 | 78 | banks[1] = banks[0] + 0x100000;
|
nkeynes@284 | 79 | if( bank_flag )
|
nkeynes@284 | 80 | banks[0]++;
|
nkeynes@284 | 81 |
|
nkeynes@284 | 82 | /* Handle non-aligned start of source */
|
nkeynes@284 | 83 | if( destaddr & 0x03 ) {
|
nkeynes@429 | 84 | unsigned char *dest = ((unsigned char *)banks[bank_flag]) + (destaddr & 0x03);
|
nkeynes@284 | 85 | for( i= destaddr & 0x03; i < 4 && length > 0; i++, length-- ) {
|
nkeynes@284 | 86 | *dest++ = *src++;
|
nkeynes@284 | 87 | }
|
nkeynes@284 | 88 | bank_flag = !bank_flag;
|
nkeynes@284 | 89 | }
|
nkeynes@284 | 90 |
|
nkeynes@284 | 91 | dwsrc = (uint32_t *)src;
|
nkeynes@284 | 92 | while( length >= 4 ) {
|
nkeynes@284 | 93 | *banks[bank_flag]++ = *dwsrc++;
|
nkeynes@284 | 94 | bank_flag = !bank_flag;
|
nkeynes@284 | 95 | length -= 4;
|
nkeynes@284 | 96 | }
|
nkeynes@284 | 97 |
|
nkeynes@284 | 98 | /* Handle non-aligned end of source */
|
nkeynes@284 | 99 | if( length ) {
|
nkeynes@429 | 100 | src = (unsigned char *)dwsrc;
|
nkeynes@429 | 101 | unsigned char *dest = (unsigned char *)banks[bank_flag];
|
nkeynes@284 | 102 | while( length-- > 0 ) {
|
nkeynes@284 | 103 | *dest++ = *src++;
|
nkeynes@284 | 104 | }
|
nkeynes@284 | 105 | }
|
nkeynes@284 | 106 | }
|
nkeynes@284 | 107 |
|
nkeynes@284 | 108 | /**
|
nkeynes@284 | 109 | * Write an image to 64-bit vram, with a line-stride different from the line-size.
|
nkeynes@284 | 110 | * The destaddr must be 32-bit aligned, and both line_bytes and line_stride_bytes
|
nkeynes@284 | 111 | * must be multiples of 4.
|
nkeynes@284 | 112 | */
|
nkeynes@429 | 113 | void pvr2_vram64_write_stride( sh4addr_t destaddr, unsigned char *src, uint32_t line_bytes,
|
nkeynes@284 | 114 | uint32_t line_stride_bytes, uint32_t line_count )
|
nkeynes@284 | 115 | {
|
nkeynes@284 | 116 | int bank_flag = (destaddr & 0x04) >> 2;
|
nkeynes@284 | 117 | uint32_t *banks[2];
|
nkeynes@284 | 118 | uint32_t *dwsrc;
|
nkeynes@284 | 119 | uint32_t line_gap;
|
nkeynes@284 | 120 | int line_gap_flag;
|
nkeynes@284 | 121 | int i,j;
|
nkeynes@284 | 122 |
|
nkeynes@284 | 123 | destaddr = destaddr & 0x7FFFF8;
|
nkeynes@284 | 124 | i = line_stride_bytes - line_bytes;
|
nkeynes@284 | 125 | line_gap_flag = i & 0x04;
|
nkeynes@284 | 126 | line_gap = i >> 3;
|
nkeynes@284 | 127 | line_bytes >>= 2;
|
nkeynes@284 | 128 |
|
nkeynes@284 | 129 | for( i=destaddr & 0xFFFFF000; i < destaddr + line_stride_bytes*line_count; i+= PAGE_SIZE ) {
|
nkeynes@284 | 130 | texcache_invalidate_page( i );
|
nkeynes@284 | 131 | }
|
nkeynes@284 | 132 |
|
nkeynes@284 | 133 | banks[0] = (uint32_t *)(video_base + (destaddr >>1));
|
nkeynes@284 | 134 | banks[1] = banks[0] + 0x100000;
|
nkeynes@284 | 135 | if( bank_flag )
|
nkeynes@284 | 136 | banks[0]++;
|
nkeynes@284 | 137 |
|
nkeynes@284 | 138 | dwsrc = (uint32_t *)src;
|
nkeynes@284 | 139 | for( i=0; i<line_count; i++ ) {
|
nkeynes@284 | 140 | for( j=0; j<line_bytes; j++ ) {
|
nkeynes@284 | 141 | *banks[bank_flag]++ = *dwsrc++;
|
nkeynes@284 | 142 | bank_flag = !bank_flag;
|
nkeynes@284 | 143 | }
|
nkeynes@285 | 144 | banks[0] += line_gap;
|
nkeynes@285 | 145 | banks[1] += line_gap;
|
nkeynes@284 | 146 | if( line_gap_flag ) {
|
nkeynes@285 | 147 | banks[bank_flag]++;
|
nkeynes@284 | 148 | bank_flag = !bank_flag;
|
nkeynes@284 | 149 | }
|
nkeynes@284 | 150 | }
|
nkeynes@284 | 151 | }
|
nkeynes@284 | 152 |
|
nkeynes@284 | 153 | /**
|
nkeynes@284 | 154 | * Read an image from 64-bit vram, with a destination line-stride different from the line-size.
|
nkeynes@284 | 155 | * The srcaddr must be 32-bit aligned, and both line_bytes and line_stride_bytes
|
nkeynes@284 | 156 | * must be multiples of 4. line_stride_bytes must be >= line_bytes.
|
nkeynes@284 | 157 | * This method is used to extract a "stride" texture from vram.
|
nkeynes@284 | 158 | */
|
nkeynes@429 | 159 | void pvr2_vram64_read_stride( unsigned char *dest, uint32_t dest_line_bytes, sh4addr_t srcaddr,
|
nkeynes@284 | 160 | uint32_t src_line_bytes, uint32_t line_count )
|
nkeynes@284 | 161 | {
|
nkeynes@284 | 162 | int bank_flag = (srcaddr & 0x04) >> 2;
|
nkeynes@284 | 163 | uint32_t *banks[2];
|
nkeynes@284 | 164 | uint32_t *dwdest;
|
nkeynes@429 | 165 | uint32_t dest_line_gap = 0;
|
nkeynes@429 | 166 | uint32_t src_line_gap = 0;
|
nkeynes@284 | 167 | uint32_t line_bytes;
|
nkeynes@284 | 168 | int src_line_gap_flag;
|
nkeynes@284 | 169 | int i,j;
|
nkeynes@284 | 170 |
|
nkeynes@284 | 171 | srcaddr = srcaddr & 0x7FFFF8;
|
nkeynes@284 | 172 | if( src_line_bytes <= dest_line_bytes ) {
|
nkeynes@284 | 173 | dest_line_gap = (dest_line_bytes - src_line_bytes) >> 2;
|
nkeynes@284 | 174 | src_line_gap = 0;
|
nkeynes@284 | 175 | src_line_gap_flag = 0;
|
nkeynes@284 | 176 | line_bytes = src_line_bytes >> 2;
|
nkeynes@284 | 177 | } else {
|
nkeynes@284 | 178 | i = (src_line_bytes - dest_line_bytes);
|
nkeynes@284 | 179 | src_line_gap_flag = i & 0x04;
|
nkeynes@284 | 180 | src_line_gap = i >> 3;
|
nkeynes@284 | 181 | line_bytes = dest_line_bytes >> 2;
|
nkeynes@284 | 182 | }
|
nkeynes@284 | 183 |
|
nkeynes@284 | 184 | banks[0] = (uint32_t *)(video_base + (srcaddr>>1));
|
nkeynes@284 | 185 | banks[1] = banks[0] + 0x100000;
|
nkeynes@284 | 186 | if( bank_flag )
|
nkeynes@284 | 187 | banks[0]++;
|
nkeynes@284 | 188 |
|
nkeynes@284 | 189 | dwdest = (uint32_t *)dest;
|
nkeynes@284 | 190 | for( i=0; i<line_count; i++ ) {
|
nkeynes@284 | 191 | for( j=0; j<line_bytes; j++ ) {
|
nkeynes@284 | 192 | *dwdest++ = *banks[bank_flag]++;
|
nkeynes@284 | 193 | bank_flag = !bank_flag;
|
nkeynes@284 | 194 | }
|
nkeynes@284 | 195 | dwdest += dest_line_gap;
|
nkeynes@284 | 196 | banks[0] += src_line_gap;
|
nkeynes@284 | 197 | banks[1] += src_line_gap;
|
nkeynes@284 | 198 | if( src_line_gap_flag ) {
|
nkeynes@284 | 199 | banks[bank_flag]++;
|
nkeynes@284 | 200 | bank_flag = !bank_flag;
|
nkeynes@284 | 201 | }
|
nkeynes@310 | 202 | }
|
nkeynes@310 | 203 | }
|
nkeynes@310 | 204 |
|
nkeynes@315 | 205 |
|
nkeynes@310 | 206 | /**
|
nkeynes@310 | 207 | * @param dest Destination image buffer
|
nkeynes@310 | 208 | * @param banks Source data expressed as two bank pointers
|
nkeynes@310 | 209 | * @param offset Offset into banks[0] specifying where the next byte
|
nkeynes@310 | 210 | * to read is (0..3)
|
nkeynes@310 | 211 | * @param x1,y1 Destination coordinates
|
nkeynes@310 | 212 | * @param width Width of current destination block
|
nkeynes@315 | 213 | * @param stride Total width of image (ie stride) in bytes
|
nkeynes@315 | 214 | */
|
nkeynes@315 | 215 |
|
nkeynes@315 | 216 | static void pvr2_vram64_detwiddle_4( uint8_t *dest, uint8_t *banks[2], int offset,
|
nkeynes@315 | 217 | int x1, int y1, int width, int stride )
|
nkeynes@315 | 218 | {
|
nkeynes@315 | 219 | if( width == 2 ) {
|
nkeynes@315 | 220 | x1 = x1 >> 1;
|
nkeynes@315 | 221 | uint8_t t1 = *banks[offset<4?0:1]++;
|
nkeynes@315 | 222 | uint8_t t2 = *banks[offset<3?0:1]++;
|
nkeynes@315 | 223 | dest[y1*stride + x1] = (t1 & 0x0F) | (t2<<4);
|
nkeynes@315 | 224 | dest[(y1+1)*stride + x1] = (t1>>4) | (t2&0xF0);
|
nkeynes@315 | 225 | } else if( width == 4 ) {
|
nkeynes@315 | 226 | pvr2_vram64_detwiddle_4( dest, banks, offset, x1, y1, 2, stride );
|
nkeynes@315 | 227 | pvr2_vram64_detwiddle_4( dest, banks, offset+2, x1, y1+2, 2, stride );
|
nkeynes@315 | 228 | pvr2_vram64_detwiddle_4( dest, banks, offset+4, x1+2, y1, 2, stride );
|
nkeynes@315 | 229 | pvr2_vram64_detwiddle_4( dest, banks, offset+6, x1+2, y1+2, 2, stride );
|
nkeynes@315 | 230 |
|
nkeynes@315 | 231 | } else {
|
nkeynes@315 | 232 | int subdivide = width >> 1;
|
nkeynes@315 | 233 | pvr2_vram64_detwiddle_4( dest, banks, offset, x1, y1, subdivide, stride );
|
nkeynes@315 | 234 | pvr2_vram64_detwiddle_4( dest, banks, offset, x1, y1+subdivide, subdivide, stride );
|
nkeynes@315 | 235 | pvr2_vram64_detwiddle_4( dest, banks, offset, x1+subdivide, y1, subdivide, stride );
|
nkeynes@315 | 236 | pvr2_vram64_detwiddle_4( dest, banks, offset, x1+subdivide, y1+subdivide, subdivide, stride );
|
nkeynes@315 | 237 | }
|
nkeynes@315 | 238 | }
|
nkeynes@315 | 239 |
|
nkeynes@315 | 240 | /**
|
nkeynes@315 | 241 | * @param dest Destination image buffer
|
nkeynes@315 | 242 | * @param banks Source data expressed as two bank pointers
|
nkeynes@315 | 243 | * @param offset Offset into banks[0] specifying where the next byte
|
nkeynes@315 | 244 | * to read is (0..3)
|
nkeynes@315 | 245 | * @param x1,y1 Destination coordinates
|
nkeynes@315 | 246 | * @param width Width of current destination block
|
nkeynes@315 | 247 | * @param stride Total width of image (ie stride)
|
nkeynes@310 | 248 | */
|
nkeynes@310 | 249 |
|
nkeynes@310 | 250 | static void pvr2_vram64_detwiddle_8( uint8_t *dest, uint8_t *banks[2], int offset,
|
nkeynes@315 | 251 | int x1, int y1, int width, int stride )
|
nkeynes@310 | 252 | {
|
nkeynes@310 | 253 | if( width == 2 ) {
|
nkeynes@315 | 254 | dest[y1*stride + x1] = *banks[0]++;
|
nkeynes@315 | 255 | dest[(y1+1)*stride + x1] = *banks[offset<3?0:1]++;
|
nkeynes@315 | 256 | dest[y1*stride + x1 + 1] = *banks[offset<2?0:1]++;
|
nkeynes@315 | 257 | dest[(y1+1)*stride + x1 + 1] = *banks[offset==0?0:1]++;
|
nkeynes@310 | 258 | uint8_t *tmp = banks[0]; /* swap banks */
|
nkeynes@310 | 259 | banks[0] = banks[1];
|
nkeynes@310 | 260 | banks[1] = tmp;
|
nkeynes@310 | 261 | } else {
|
nkeynes@310 | 262 | int subdivide = width >> 1;
|
nkeynes@315 | 263 | pvr2_vram64_detwiddle_8( dest, banks, offset, x1, y1, subdivide, stride );
|
nkeynes@315 | 264 | pvr2_vram64_detwiddle_8( dest, banks, offset, x1, y1+subdivide, subdivide, stride );
|
nkeynes@315 | 265 | pvr2_vram64_detwiddle_8( dest, banks, offset, x1+subdivide, y1, subdivide, stride );
|
nkeynes@315 | 266 | pvr2_vram64_detwiddle_8( dest, banks, offset, x1+subdivide, y1+subdivide, subdivide, stride );
|
nkeynes@284 | 267 | }
|
nkeynes@310 | 268 | }
|
nkeynes@310 | 269 |
|
nkeynes@310 | 270 | /**
|
nkeynes@310 | 271 | * @param dest Destination image buffer
|
nkeynes@310 | 272 | * @param banks Source data expressed as two bank pointers
|
nkeynes@310 | 273 | * @param offset Offset into banks[0] specifying where the next word
|
nkeynes@310 | 274 | * to read is (0 or 1)
|
nkeynes@310 | 275 | * @param x1,y1 Destination coordinates
|
nkeynes@310 | 276 | * @param width Width of current destination block
|
nkeynes@315 | 277 | * @param stride Total width of image (ie stride)
|
nkeynes@310 | 278 | */
|
nkeynes@310 | 279 |
|
nkeynes@310 | 280 | static void pvr2_vram64_detwiddle_16( uint16_t *dest, uint16_t *banks[2], int offset,
|
nkeynes@315 | 281 | int x1, int y1, int width, int stride )
|
nkeynes@310 | 282 | {
|
nkeynes@310 | 283 | if( width == 2 ) {
|
nkeynes@315 | 284 | dest[y1*stride + x1] = *banks[0]++;
|
nkeynes@315 | 285 | dest[(y1+1)*stride + x1] = *banks[offset]++;
|
nkeynes@315 | 286 | dest[y1*stride + x1 + 1] = *banks[1]++;
|
nkeynes@315 | 287 | dest[(y1+1)*stride + x1 + 1] = *banks[offset^1]++;
|
nkeynes@310 | 288 | } else {
|
nkeynes@310 | 289 | int subdivide = width >> 1;
|
nkeynes@315 | 290 | pvr2_vram64_detwiddle_16( dest, banks, offset, x1, y1, subdivide, stride );
|
nkeynes@315 | 291 | pvr2_vram64_detwiddle_16( dest, banks, offset, x1, y1+subdivide, subdivide, stride );
|
nkeynes@315 | 292 | pvr2_vram64_detwiddle_16( dest, banks, offset, x1+subdivide, y1, subdivide, stride );
|
nkeynes@315 | 293 | pvr2_vram64_detwiddle_16( dest, banks, offset, x1+subdivide, y1+subdivide, subdivide, stride );
|
nkeynes@310 | 294 | }
|
nkeynes@310 | 295 | }
|
nkeynes@310 | 296 |
|
nkeynes@310 | 297 | /**
|
nkeynes@315 | 298 | * Read an image from 64-bit vram stored as twiddled 4-bit pixels. The
|
nkeynes@315 | 299 | * image is written out to the destination in detwiddled form.
|
nkeynes@315 | 300 | * @param dest destination buffer, which must be at least width*height/2 in length
|
nkeynes@315 | 301 | * @param srcaddr source address in vram
|
nkeynes@315 | 302 | * @param width image width (must be a power of 2)
|
nkeynes@315 | 303 | * @param height image height (must be a power of 2)
|
nkeynes@315 | 304 | */
|
nkeynes@429 | 305 | void pvr2_vram64_read_twiddled_4( unsigned char *dest, sh4addr_t srcaddr, uint32_t width, uint32_t height )
|
nkeynes@315 | 306 | {
|
nkeynes@315 | 307 | int offset_flag = (srcaddr & 0x07);
|
nkeynes@315 | 308 | uint8_t *banks[2];
|
nkeynes@315 | 309 | uint8_t *wdest = (uint8_t*)dest;
|
nkeynes@315 | 310 | uint32_t stride = width >> 1;
|
nkeynes@429 | 311 | int i;
|
nkeynes@315 | 312 |
|
nkeynes@315 | 313 | srcaddr = srcaddr & 0x7FFFF8;
|
nkeynes@315 | 314 |
|
nkeynes@315 | 315 | banks[0] = (uint8_t *)(video_base + (srcaddr>>1));
|
nkeynes@315 | 316 | banks[1] = banks[0] + 0x400000;
|
nkeynes@315 | 317 | if( offset_flag & 0x04 ) { // If source is not 64-bit aligned, swap the banks
|
nkeynes@315 | 318 | uint8_t *tmp = banks[0];
|
nkeynes@315 | 319 | banks[0] = banks[1];
|
nkeynes@315 | 320 | banks[1] = tmp + 4;
|
nkeynes@315 | 321 | offset_flag &= 0x03;
|
nkeynes@315 | 322 | }
|
nkeynes@315 | 323 | banks[0] += offset_flag;
|
nkeynes@315 | 324 |
|
nkeynes@315 | 325 | if( width > height ) {
|
nkeynes@315 | 326 | for( i=0; i<width; i+=height ) {
|
nkeynes@315 | 327 | pvr2_vram64_detwiddle_4( wdest, banks, offset_flag, i, 0, height, stride );
|
nkeynes@315 | 328 | }
|
nkeynes@315 | 329 | } else if( height > width ) {
|
nkeynes@315 | 330 | for( i=0; i<height; i+=width ) {
|
nkeynes@315 | 331 | pvr2_vram64_detwiddle_4( wdest, banks, offset_flag, 0, i, width, stride );
|
nkeynes@315 | 332 | }
|
nkeynes@315 | 333 | } else if( width == 1 ) {
|
nkeynes@315 | 334 | *wdest = *banks[0];
|
nkeynes@315 | 335 | } else {
|
nkeynes@315 | 336 | pvr2_vram64_detwiddle_4( wdest, banks, offset_flag, 0, 0, width, stride );
|
nkeynes@315 | 337 | }
|
nkeynes@315 | 338 | }
|
nkeynes@315 | 339 |
|
nkeynes@315 | 340 | /**
|
nkeynes@310 | 341 | * Read an image from 64-bit vram stored as twiddled 8-bit pixels. The
|
nkeynes@310 | 342 | * image is written out to the destination in detwiddled form.
|
nkeynes@310 | 343 | * @param dest destination buffer, which must be at least width*height in length
|
nkeynes@310 | 344 | * @param srcaddr source address in vram
|
nkeynes@310 | 345 | * @param width image width (must be a power of 2)
|
nkeynes@310 | 346 | * @param height image height (must be a power of 2)
|
nkeynes@310 | 347 | */
|
nkeynes@429 | 348 | void pvr2_vram64_read_twiddled_8( unsigned char *dest, sh4addr_t srcaddr, uint32_t width, uint32_t height )
|
nkeynes@310 | 349 | {
|
nkeynes@310 | 350 | int offset_flag = (srcaddr & 0x07);
|
nkeynes@310 | 351 | uint8_t *banks[2];
|
nkeynes@310 | 352 | uint8_t *wdest = (uint8_t*)dest;
|
nkeynes@429 | 353 | int i;
|
nkeynes@310 | 354 |
|
nkeynes@310 | 355 | srcaddr = srcaddr & 0x7FFFF8;
|
nkeynes@310 | 356 |
|
nkeynes@310 | 357 | banks[0] = (uint8_t *)(video_base + (srcaddr>>1));
|
nkeynes@310 | 358 | banks[1] = banks[0] + 0x400000;
|
nkeynes@310 | 359 | if( offset_flag & 0x04 ) { // If source is not 64-bit aligned, swap the banks
|
nkeynes@310 | 360 | uint8_t *tmp = banks[0];
|
nkeynes@310 | 361 | banks[0] = banks[1];
|
nkeynes@310 | 362 | banks[1] = tmp + 4;
|
nkeynes@310 | 363 | offset_flag &= 0x03;
|
nkeynes@310 | 364 | }
|
nkeynes@310 | 365 | banks[0] += offset_flag;
|
nkeynes@310 | 366 |
|
nkeynes@310 | 367 | if( width > height ) {
|
nkeynes@310 | 368 | for( i=0; i<width; i+=height ) {
|
nkeynes@310 | 369 | pvr2_vram64_detwiddle_8( wdest, banks, offset_flag, i, 0, height, width );
|
nkeynes@310 | 370 | }
|
nkeynes@310 | 371 | } else if( height > width ) {
|
nkeynes@310 | 372 | for( i=0; i<height; i+=width ) {
|
nkeynes@310 | 373 | pvr2_vram64_detwiddle_8( wdest, banks, offset_flag, 0, i, width, width );
|
nkeynes@310 | 374 | }
|
nkeynes@310 | 375 | } else if( width == 1 ) {
|
nkeynes@310 | 376 | *wdest = *banks[0];
|
nkeynes@310 | 377 | } else {
|
nkeynes@310 | 378 | pvr2_vram64_detwiddle_8( wdest, banks, offset_flag, 0, 0, width, width );
|
nkeynes@310 | 379 | }
|
nkeynes@310 | 380 | }
|
nkeynes@310 | 381 |
|
nkeynes@310 | 382 | /**
|
nkeynes@310 | 383 | * Read an image from 64-bit vram stored as twiddled 16-bit pixels. The
|
nkeynes@310 | 384 | * image is written out to the destination in detwiddled form.
|
nkeynes@310 | 385 | * @param dest destination buffer, which must be at least width*height*2 in length
|
nkeynes@310 | 386 | * @param srcaddr source address in vram (must be 16-bit aligned)
|
nkeynes@310 | 387 | * @param width image width (must be a power of 2)
|
nkeynes@310 | 388 | * @param height image height (must be a power of 2)
|
nkeynes@310 | 389 | */
|
nkeynes@429 | 390 | void pvr2_vram64_read_twiddled_16( unsigned char *dest, sh4addr_t srcaddr, uint32_t width, uint32_t height ) {
|
nkeynes@310 | 391 | int offset_flag = (srcaddr & 0x06) >> 1;
|
nkeynes@310 | 392 | uint16_t *banks[2];
|
nkeynes@310 | 393 | uint16_t *wdest = (uint16_t*)dest;
|
nkeynes@429 | 394 | int i;
|
nkeynes@310 | 395 |
|
nkeynes@310 | 396 | srcaddr = srcaddr & 0x7FFFF8;
|
nkeynes@310 | 397 |
|
nkeynes@310 | 398 | banks[0] = (uint16_t *)(video_base + (srcaddr>>1));
|
nkeynes@310 | 399 | banks[1] = banks[0] + 0x200000;
|
nkeynes@310 | 400 | if( offset_flag & 0x02 ) { // If source is not 64-bit aligned, swap the banks
|
nkeynes@310 | 401 | uint16_t *tmp = banks[0];
|
nkeynes@310 | 402 | banks[0] = banks[1];
|
nkeynes@310 | 403 | banks[1] = tmp + 2;
|
nkeynes@310 | 404 | offset_flag &= 0x01;
|
nkeynes@310 | 405 | }
|
nkeynes@310 | 406 | banks[0] += offset_flag;
|
nkeynes@310 | 407 |
|
nkeynes@310 | 408 |
|
nkeynes@310 | 409 | if( width > height ) {
|
nkeynes@310 | 410 | for( i=0; i<width; i+=height ) {
|
nkeynes@310 | 411 | pvr2_vram64_detwiddle_16( wdest, banks, offset_flag, i, 0, height, width );
|
nkeynes@310 | 412 | }
|
nkeynes@310 | 413 | } else if( height > width ) {
|
nkeynes@310 | 414 | for( i=0; i<height; i+=width ) {
|
nkeynes@310 | 415 | pvr2_vram64_detwiddle_16( wdest, banks, offset_flag, 0, i, width, width );
|
nkeynes@310 | 416 | }
|
nkeynes@310 | 417 | } else if( width == 1 ) {
|
nkeynes@310 | 418 | *wdest = *banks[0];
|
nkeynes@310 | 419 | } else {
|
nkeynes@310 | 420 | pvr2_vram64_detwiddle_16( wdest, banks, offset_flag, 0, 0, width, width );
|
nkeynes@310 | 421 | }
|
nkeynes@284 | 422 | }
|
nkeynes@284 | 423 |
|
nkeynes@429 | 424 | void pvr2_vram_write_invert( sh4addr_t destaddr, unsigned char *src, uint32_t length, uint32_t line_length,
|
nkeynes@333 | 425 | uint32_t src_stride )
|
nkeynes@284 | 426 | {
|
nkeynes@429 | 427 | unsigned char *dest = video_base + (destaddr & 0x007FFFFF);
|
nkeynes@429 | 428 | unsigned char *p = src + length - src_stride;
|
nkeynes@284 | 429 | while( p >= src ) {
|
nkeynes@284 | 430 | memcpy( dest, p, line_length );
|
nkeynes@333 | 431 | p -= src_stride;
|
nkeynes@284 | 432 | dest += line_length;
|
nkeynes@284 | 433 | }
|
nkeynes@284 | 434 | }
|
nkeynes@284 | 435 |
|
nkeynes@429 | 436 | void pvr2_vram64_read( unsigned char *dest, sh4addr_t srcaddr, uint32_t length )
|
nkeynes@284 | 437 | {
|
nkeynes@284 | 438 | int bank_flag = (srcaddr & 0x04) >> 2;
|
nkeynes@284 | 439 | uint32_t *banks[2];
|
nkeynes@284 | 440 | uint32_t *dwdest;
|
nkeynes@284 | 441 | int i;
|
nkeynes@284 | 442 |
|
nkeynes@284 | 443 | srcaddr = srcaddr & 0x7FFFFF;
|
nkeynes@284 | 444 | if( srcaddr + length > 0x800000 )
|
nkeynes@284 | 445 | length = 0x800000 - srcaddr;
|
nkeynes@284 | 446 |
|
nkeynes@284 | 447 | banks[0] = ((uint32_t *)(video_base + ((srcaddr&0x007FFFF8)>>1)));
|
nkeynes@284 | 448 | banks[1] = banks[0] + 0x100000;
|
nkeynes@284 | 449 | if( bank_flag )
|
nkeynes@284 | 450 | banks[0]++;
|
nkeynes@284 | 451 |
|
nkeynes@284 | 452 | /* Handle non-aligned start of source */
|
nkeynes@284 | 453 | if( srcaddr & 0x03 ) {
|
nkeynes@284 | 454 | char *src = ((char *)banks[bank_flag]) + (srcaddr & 0x03);
|
nkeynes@284 | 455 | for( i= srcaddr & 0x03; i < 4 && length > 0; i++, length-- ) {
|
nkeynes@284 | 456 | *dest++ = *src++;
|
nkeynes@284 | 457 | }
|
nkeynes@284 | 458 | bank_flag = !bank_flag;
|
nkeynes@284 | 459 | }
|
nkeynes@284 | 460 |
|
nkeynes@284 | 461 | dwdest = (uint32_t *)dest;
|
nkeynes@284 | 462 | while( length >= 4 ) {
|
nkeynes@284 | 463 | *dwdest++ = *banks[bank_flag]++;
|
nkeynes@284 | 464 | bank_flag = !bank_flag;
|
nkeynes@284 | 465 | length -= 4;
|
nkeynes@284 | 466 | }
|
nkeynes@284 | 467 |
|
nkeynes@284 | 468 | /* Handle non-aligned end of source */
|
nkeynes@284 | 469 | if( length ) {
|
nkeynes@429 | 470 | dest = (unsigned char *)dwdest;
|
nkeynes@429 | 471 | unsigned char *src = (unsigned char *)banks[bank_flag];
|
nkeynes@284 | 472 | while( length-- > 0 ) {
|
nkeynes@284 | 473 | *dest++ = *src++;
|
nkeynes@284 | 474 | }
|
nkeynes@284 | 475 | }
|
nkeynes@284 | 476 | }
|
nkeynes@284 | 477 |
|
nkeynes@309 | 478 | void pvr2_vram64_dump_file( sh4addr_t addr, uint32_t length, gchar *filename )
|
nkeynes@309 | 479 | {
|
nkeynes@309 | 480 | uint32_t tmp[length>>2];
|
nkeynes@309 | 481 | FILE *f = fopen(filename, "wo");
|
nkeynes@309 | 482 | unsigned int i, j;
|
nkeynes@309 | 483 |
|
nkeynes@309 | 484 | if( f == NULL ) {
|
nkeynes@309 | 485 | ERROR( "Unable to write to dump file '%s' (%s)", filename, strerror(errno) );
|
nkeynes@309 | 486 | return;
|
nkeynes@309 | 487 | }
|
nkeynes@429 | 488 | pvr2_vram64_read( (unsigned char *)tmp, addr, length );
|
nkeynes@309 | 489 | fprintf( f, "%08X\n", addr );
|
nkeynes@309 | 490 | for( i =0; i<length>>2; i+=8 ) {
|
nkeynes@309 | 491 | for( j=i; j<i+8; j++ ) {
|
nkeynes@309 | 492 | if( j < length )
|
nkeynes@309 | 493 | fprintf( f, " %08X", tmp[j] );
|
nkeynes@309 | 494 | else
|
nkeynes@309 | 495 | fprintf( f, " " );
|
nkeynes@309 | 496 | }
|
nkeynes@309 | 497 | fprintf( f, "\n" );
|
nkeynes@309 | 498 | }
|
nkeynes@309 | 499 | fclose(f);
|
nkeynes@309 | 500 | }
|
nkeynes@309 | 501 |
|
nkeynes@284 | 502 | void pvr2_vram64_dump( sh4addr_t addr, uint32_t length, FILE *f )
|
nkeynes@284 | 503 | {
|
nkeynes@429 | 504 | unsigned char tmp[length];
|
nkeynes@284 | 505 | pvr2_vram64_read( tmp, addr, length );
|
nkeynes@284 | 506 | fwrite_dump( tmp, length, f );
|
nkeynes@284 | 507 | }
|
nkeynes@315 | 508 |
|
nkeynes@315 | 509 |
|
nkeynes@315 | 510 |
|
nkeynes@315 | 511 | /**
|
nkeynes@315 | 512 | * Flush the indicated render buffer back to PVR. Caller is responsible for
|
nkeynes@315 | 513 | * tracking whether there is actually anything in the buffer.
|
nkeynes@315 | 514 | *
|
nkeynes@315 | 515 | * @param buffer A render buffer indicating the address to store to, and the
|
nkeynes@315 | 516 | * format the data needs to be in.
|
nkeynes@315 | 517 | * @param backBuffer TRUE to flush the back buffer, FALSE for
|
nkeynes@315 | 518 | * the front buffer.
|
nkeynes@315 | 519 | */
|
nkeynes@352 | 520 | void pvr2_render_buffer_copy_to_sh4( render_buffer_t buffer )
|
nkeynes@315 | 521 | {
|
nkeynes@429 | 522 | if( (buffer->address & 0xFF000000) == 0x04000000 ) {
|
nkeynes@315 | 523 | /* Interlaced buffer. Go the double copy... :( */
|
nkeynes@429 | 524 | unsigned char target[buffer->size];
|
nkeynes@477 | 525 | display_driver->read_render_buffer( target, buffer, buffer->rowstride, buffer->colour_format );
|
nkeynes@352 | 526 | pvr2_vram64_write( buffer->address, target, buffer->size );
|
nkeynes@315 | 527 | } else {
|
nkeynes@315 | 528 | /* Regular buffer */
|
nkeynes@429 | 529 | unsigned char target[buffer->size];
|
nkeynes@352 | 530 | int line_size = buffer->width * colour_formats[buffer->colour_format].bpp;
|
nkeynes@477 | 531 | display_driver->read_render_buffer( target, buffer, buffer->rowstride, buffer->colour_format );
|
nkeynes@352 | 532 | if( (buffer->scale & 0xFFFF) == 0x0800 ) {
|
nkeynes@352 | 533 | pvr2_vram_write_invert( buffer->address, target, buffer->size, line_size, line_size << 1 );
|
nkeynes@352 | 534 | } else {
|
nkeynes@352 | 535 | pvr2_vram_write_invert( buffer->address, target, buffer->size, line_size, line_size );
|
nkeynes@352 | 536 | }
|
nkeynes@315 | 537 | }
|
nkeynes@315 | 538 | }
|
nkeynes@315 | 539 |
|