nkeynes@284 | 1 | /**
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nkeynes@561 | 2 | * $Id$
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nkeynes@284 | 3 | *
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nkeynes@284 | 4 | * PVR2 (Video) VRAM handling routines (mainly for the 64-bit region)
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nkeynes@284 | 5 | *
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nkeynes@284 | 6 | * Copyright (c) 2005 Nathan Keynes.
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nkeynes@284 | 7 | *
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nkeynes@284 | 8 | * This program is free software; you can redistribute it and/or modify
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nkeynes@284 | 9 | * it under the terms of the GNU General Public License as published by
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nkeynes@284 | 10 | * the Free Software Foundation; either version 2 of the License, or
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nkeynes@284 | 11 | * (at your option) any later version.
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nkeynes@284 | 12 | *
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nkeynes@284 | 13 | * This program is distributed in the hope that it will be useful,
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nkeynes@284 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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nkeynes@284 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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nkeynes@284 | 16 | * GNU General Public License for more details.
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nkeynes@284 | 17 | */
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nkeynes@645 | 18 | #include <string.h>
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nkeynes@645 | 19 | #include <stdio.h>
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nkeynes@645 | 20 | #include <errno.h>
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nkeynes@284 | 21 | #include "pvr2.h"
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nkeynes@325 | 22 | #include "asic.h"
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nkeynes@669 | 23 | #include "dream.h"
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nkeynes@284 | 24 |
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nkeynes@429 | 25 | extern unsigned char *video_base;
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nkeynes@284 | 26 |
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nkeynes@429 | 27 | void pvr2_dma_write( sh4addr_t destaddr, unsigned char *src, uint32_t count )
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nkeynes@325 | 28 | {
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nkeynes@325 | 29 | int region;
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nkeynes@325 | 30 |
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nkeynes@325 | 31 | switch( destaddr & 0x13800000 ) {
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nkeynes@325 | 32 | case 0x10000000:
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nkeynes@325 | 33 | case 0x12000000:
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nkeynes@736 | 34 | pvr2_ta_write( src, count );
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nkeynes@736 | 35 | break;
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nkeynes@325 | 36 | case 0x11000000:
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nkeynes@325 | 37 | case 0x11800000:
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nkeynes@736 | 38 | region = MMIO_READ( ASIC, PVRDMARGN1 );
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nkeynes@736 | 39 | if( region == 0 ) {
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nkeynes@736 | 40 | pvr2_vram64_write( destaddr, src, count );
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nkeynes@736 | 41 | } else {
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nkeynes@834 | 42 | destaddr &= PVR2_RAM_MASK;
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nkeynes@834 | 43 | unsigned char *dest = video_base + destaddr;
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nkeynes@834 | 44 | if( PVR2_RAM_SIZE - destaddr < count ) {
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nkeynes@834 | 45 | count = PVR2_RAM_SIZE - destaddr;
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nkeynes@834 | 46 | }
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nkeynes@736 | 47 | memcpy( dest, src, count );
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nkeynes@736 | 48 | }
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nkeynes@736 | 49 | break;
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nkeynes@325 | 50 | case 0x10800000:
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nkeynes@325 | 51 | case 0x12800000:
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nkeynes@736 | 52 | pvr2_yuv_write( src, count );
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nkeynes@736 | 53 | break;
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nkeynes@325 | 54 | case 0x13000000:
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nkeynes@325 | 55 | case 0x13800000:
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nkeynes@736 | 56 | region = MMIO_READ( ASIC, PVRDMARGN2 );
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nkeynes@736 | 57 | if( region == 0 ) {
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nkeynes@736 | 58 | pvr2_vram64_write( destaddr, src, count );
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nkeynes@736 | 59 | } else {
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nkeynes@834 | 60 | destaddr &= PVR2_RAM_MASK;
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nkeynes@834 | 61 | unsigned char *dest = video_base + destaddr;
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nkeynes@834 | 62 | if( PVR2_RAM_SIZE - destaddr < count ) {
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nkeynes@834 | 63 | count = PVR2_RAM_SIZE - destaddr;
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nkeynes@834 | 64 | }
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nkeynes@736 | 65 | memcpy( dest, src, count );
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nkeynes@736 | 66 | }
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nkeynes@827 | 67 | }
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nkeynes@325 | 68 | }
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nkeynes@325 | 69 |
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nkeynes@429 | 70 | void pvr2_vram64_write( sh4addr_t destaddr, unsigned char *src, uint32_t length )
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nkeynes@284 | 71 | {
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nkeynes@284 | 72 | int bank_flag = (destaddr & 0x04) >> 2;
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nkeynes@284 | 73 | uint32_t *banks[2];
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nkeynes@284 | 74 | uint32_t *dwsrc;
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nkeynes@284 | 75 | int i;
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nkeynes@284 | 76 |
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nkeynes@284 | 77 | destaddr = destaddr & 0x7FFFFF;
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nkeynes@284 | 78 | if( destaddr + length > 0x800000 ) {
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nkeynes@736 | 79 | length = 0x800000 - destaddr;
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nkeynes@284 | 80 | }
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nkeynes@284 | 81 |
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nkeynes@796 | 82 | for( i=destaddr & 0xFFFFF000; i < destaddr + length; i+= LXDREAM_PAGE_SIZE ) {
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nkeynes@736 | 83 | texcache_invalidate_page( i );
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nkeynes@284 | 84 | }
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nkeynes@284 | 85 |
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nkeynes@284 | 86 | banks[0] = ((uint32_t *)(video_base + ((destaddr & 0x007FFFF8) >>1)));
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nkeynes@284 | 87 | banks[1] = banks[0] + 0x100000;
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nkeynes@827 | 88 | if( bank_flag )
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nkeynes@736 | 89 | banks[0]++;
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nkeynes@736 | 90 |
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nkeynes@284 | 91 | /* Handle non-aligned start of source */
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nkeynes@284 | 92 | if( destaddr & 0x03 ) {
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nkeynes@736 | 93 | unsigned char *dest = ((unsigned char *)banks[bank_flag]) + (destaddr & 0x03);
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nkeynes@736 | 94 | for( i= destaddr & 0x03; i < 4 && length > 0; i++, length-- ) {
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nkeynes@736 | 95 | *dest++ = *src++;
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nkeynes@736 | 96 | }
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nkeynes@736 | 97 | bank_flag = !bank_flag;
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nkeynes@284 | 98 | }
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nkeynes@284 | 99 |
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nkeynes@284 | 100 | dwsrc = (uint32_t *)src;
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nkeynes@284 | 101 | while( length >= 4 ) {
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nkeynes@736 | 102 | *banks[bank_flag]++ = *dwsrc++;
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nkeynes@736 | 103 | bank_flag = !bank_flag;
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nkeynes@736 | 104 | length -= 4;
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nkeynes@284 | 105 | }
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nkeynes@736 | 106 |
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nkeynes@284 | 107 | /* Handle non-aligned end of source */
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nkeynes@284 | 108 | if( length ) {
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nkeynes@736 | 109 | src = (unsigned char *)dwsrc;
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nkeynes@736 | 110 | unsigned char *dest = (unsigned char *)banks[bank_flag];
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nkeynes@736 | 111 | while( length-- > 0 ) {
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nkeynes@736 | 112 | *dest++ = *src++;
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nkeynes@736 | 113 | }
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nkeynes@827 | 114 | }
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nkeynes@284 | 115 | }
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nkeynes@284 | 116 |
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nkeynes@284 | 117 | /**
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nkeynes@284 | 118 | * Write an image to 64-bit vram, with a line-stride different from the line-size.
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nkeynes@284 | 119 | * The destaddr must be 32-bit aligned, and both line_bytes and line_stride_bytes
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nkeynes@284 | 120 | * must be multiples of 4.
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nkeynes@284 | 121 | */
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nkeynes@827 | 122 | void pvr2_vram64_write_stride( sh4addr_t destaddr, unsigned char *src, uint32_t line_bytes,
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nkeynes@736 | 123 | uint32_t line_stride_bytes, uint32_t line_count )
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nkeynes@284 | 124 | {
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nkeynes@284 | 125 | int bank_flag = (destaddr & 0x04) >> 2;
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nkeynes@284 | 126 | uint32_t *banks[2];
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nkeynes@284 | 127 | uint32_t *dwsrc;
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nkeynes@284 | 128 | uint32_t line_gap;
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nkeynes@284 | 129 | int line_gap_flag;
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nkeynes@284 | 130 | int i,j;
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nkeynes@284 | 131 |
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nkeynes@284 | 132 | destaddr = destaddr & 0x7FFFF8;
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nkeynes@284 | 133 | i = line_stride_bytes - line_bytes;
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nkeynes@284 | 134 | line_gap_flag = i & 0x04;
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nkeynes@284 | 135 | line_gap = i >> 3;
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nkeynes@284 | 136 | line_bytes >>= 2;
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nkeynes@284 | 137 |
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nkeynes@796 | 138 | for( i=destaddr & 0xFFFFF000; i < destaddr + line_stride_bytes*line_count; i+= LXDREAM_PAGE_SIZE ) {
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nkeynes@736 | 139 | texcache_invalidate_page( i );
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nkeynes@284 | 140 | }
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nkeynes@284 | 141 |
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nkeynes@284 | 142 | banks[0] = (uint32_t *)(video_base + (destaddr >>1));
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nkeynes@284 | 143 | banks[1] = banks[0] + 0x100000;
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nkeynes@827 | 144 | if( bank_flag )
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nkeynes@736 | 145 | banks[0]++;
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nkeynes@736 | 146 |
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nkeynes@284 | 147 | dwsrc = (uint32_t *)src;
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nkeynes@284 | 148 | for( i=0; i<line_count; i++ ) {
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nkeynes@736 | 149 | for( j=0; j<line_bytes; j++ ) {
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nkeynes@736 | 150 | *banks[bank_flag]++ = *dwsrc++;
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nkeynes@736 | 151 | bank_flag = !bank_flag;
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nkeynes@736 | 152 | }
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nkeynes@736 | 153 | banks[0] += line_gap;
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nkeynes@736 | 154 | banks[1] += line_gap;
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nkeynes@736 | 155 | if( line_gap_flag ) {
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nkeynes@736 | 156 | banks[bank_flag]++;
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nkeynes@736 | 157 | bank_flag = !bank_flag;
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nkeynes@736 | 158 | }
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nkeynes@827 | 159 | }
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nkeynes@284 | 160 | }
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nkeynes@284 | 161 |
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nkeynes@284 | 162 | /**
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nkeynes@284 | 163 | * Read an image from 64-bit vram, with a destination line-stride different from the line-size.
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nkeynes@284 | 164 | * The srcaddr must be 32-bit aligned, and both line_bytes and line_stride_bytes
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nkeynes@284 | 165 | * must be multiples of 4. line_stride_bytes must be >= line_bytes.
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nkeynes@284 | 166 | * This method is used to extract a "stride" texture from vram.
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nkeynes@284 | 167 | */
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nkeynes@429 | 168 | void pvr2_vram64_read_stride( unsigned char *dest, uint32_t dest_line_bytes, sh4addr_t srcaddr,
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nkeynes@736 | 169 | uint32_t src_line_bytes, uint32_t line_count )
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nkeynes@284 | 170 | {
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nkeynes@284 | 171 | int bank_flag = (srcaddr & 0x04) >> 2;
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nkeynes@284 | 172 | uint32_t *banks[2];
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nkeynes@284 | 173 | uint32_t *dwdest;
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nkeynes@429 | 174 | uint32_t dest_line_gap = 0;
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nkeynes@429 | 175 | uint32_t src_line_gap = 0;
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nkeynes@284 | 176 | uint32_t line_bytes;
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nkeynes@284 | 177 | int src_line_gap_flag;
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nkeynes@284 | 178 | int i,j;
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nkeynes@284 | 179 |
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nkeynes@284 | 180 | srcaddr = srcaddr & 0x7FFFF8;
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nkeynes@284 | 181 | if( src_line_bytes <= dest_line_bytes ) {
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nkeynes@736 | 182 | dest_line_gap = (dest_line_bytes - src_line_bytes) >> 2;
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nkeynes@736 | 183 | src_line_gap = 0;
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nkeynes@736 | 184 | src_line_gap_flag = 0;
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nkeynes@736 | 185 | line_bytes = src_line_bytes >> 2;
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nkeynes@284 | 186 | } else {
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nkeynes@736 | 187 | i = (src_line_bytes - dest_line_bytes);
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nkeynes@736 | 188 | src_line_gap_flag = i & 0x04;
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nkeynes@736 | 189 | src_line_gap = i >> 3;
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nkeynes@736 | 190 | line_bytes = dest_line_bytes >> 2;
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nkeynes@284 | 191 | }
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nkeynes@736 | 192 |
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nkeynes@284 | 193 | banks[0] = (uint32_t *)(video_base + (srcaddr>>1));
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nkeynes@284 | 194 | banks[1] = banks[0] + 0x100000;
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nkeynes@284 | 195 | if( bank_flag )
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nkeynes@736 | 196 | banks[0]++;
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nkeynes@736 | 197 |
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nkeynes@284 | 198 | dwdest = (uint32_t *)dest;
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nkeynes@284 | 199 | for( i=0; i<line_count; i++ ) {
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nkeynes@736 | 200 | for( j=0; j<line_bytes; j++ ) {
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nkeynes@736 | 201 | *dwdest++ = *banks[bank_flag]++;
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nkeynes@736 | 202 | bank_flag = !bank_flag;
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nkeynes@736 | 203 | }
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nkeynes@736 | 204 | dwdest += dest_line_gap;
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nkeynes@736 | 205 | banks[0] += src_line_gap;
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nkeynes@736 | 206 | banks[1] += src_line_gap;
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nkeynes@736 | 207 | if( src_line_gap_flag ) {
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nkeynes@736 | 208 | banks[bank_flag]++;
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nkeynes@736 | 209 | bank_flag = !bank_flag;
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nkeynes@736 | 210 | }
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nkeynes@827 | 211 | }
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nkeynes@310 | 212 | }
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nkeynes@310 | 213 |
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nkeynes@315 | 214 |
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nkeynes@310 | 215 | /**
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nkeynes@310 | 216 | * @param dest Destination image buffer
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nkeynes@310 | 217 | * @param banks Source data expressed as two bank pointers
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nkeynes@310 | 218 | * @param offset Offset into banks[0] specifying where the next byte
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nkeynes@310 | 219 | * to read is (0..3)
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nkeynes@310 | 220 | * @param x1,y1 Destination coordinates
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nkeynes@310 | 221 | * @param width Width of current destination block
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nkeynes@315 | 222 | * @param stride Total width of image (ie stride) in bytes
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nkeynes@315 | 223 | */
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nkeynes@315 | 224 |
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nkeynes@315 | 225 | static void pvr2_vram64_detwiddle_4( uint8_t *dest, uint8_t *banks[2], int offset,
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nkeynes@736 | 226 | int x1, int y1, int width, int stride )
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nkeynes@315 | 227 | {
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nkeynes@315 | 228 | if( width == 2 ) {
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nkeynes@736 | 229 | x1 = x1 >> 1;
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nkeynes@736 | 230 | uint8_t t1 = *banks[offset<4?0:1]++;
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nkeynes@736 | 231 | uint8_t t2 = *banks[offset<3?0:1]++;
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nkeynes@736 | 232 | dest[y1*stride + x1] = (t1 & 0x0F) | (t2<<4);
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nkeynes@736 | 233 | dest[(y1+1)*stride + x1] = (t1>>4) | (t2&0xF0);
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nkeynes@315 | 234 | } else if( width == 4 ) {
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nkeynes@736 | 235 | pvr2_vram64_detwiddle_4( dest, banks, offset, x1, y1, 2, stride );
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nkeynes@736 | 236 | pvr2_vram64_detwiddle_4( dest, banks, offset+2, x1, y1+2, 2, stride );
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nkeynes@736 | 237 | pvr2_vram64_detwiddle_4( dest, banks, offset+4, x1+2, y1, 2, stride );
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nkeynes@736 | 238 | pvr2_vram64_detwiddle_4( dest, banks, offset+6, x1+2, y1+2, 2, stride );
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nkeynes@736 | 239 |
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nkeynes@315 | 240 | } else {
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nkeynes@736 | 241 | int subdivide = width >> 1;
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nkeynes@736 | 242 | pvr2_vram64_detwiddle_4( dest, banks, offset, x1, y1, subdivide, stride );
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nkeynes@736 | 243 | pvr2_vram64_detwiddle_4( dest, banks, offset, x1, y1+subdivide, subdivide, stride );
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nkeynes@736 | 244 | pvr2_vram64_detwiddle_4( dest, banks, offset, x1+subdivide, y1, subdivide, stride );
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nkeynes@736 | 245 | pvr2_vram64_detwiddle_4( dest, banks, offset, x1+subdivide, y1+subdivide, subdivide, stride );
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nkeynes@315 | 246 | }
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nkeynes@315 | 247 | }
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nkeynes@315 | 248 |
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nkeynes@315 | 249 | /**
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nkeynes@315 | 250 | * @param dest Destination image buffer
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nkeynes@315 | 251 | * @param banks Source data expressed as two bank pointers
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nkeynes@315 | 252 | * @param offset Offset into banks[0] specifying where the next byte
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nkeynes@315 | 253 | * to read is (0..3)
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nkeynes@315 | 254 | * @param x1,y1 Destination coordinates
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nkeynes@315 | 255 | * @param width Width of current destination block
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nkeynes@315 | 256 | * @param stride Total width of image (ie stride)
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nkeynes@310 | 257 | */
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nkeynes@310 | 258 |
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nkeynes@310 | 259 | static void pvr2_vram64_detwiddle_8( uint8_t *dest, uint8_t *banks[2], int offset,
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nkeynes@736 | 260 | int x1, int y1, int width, int stride )
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nkeynes@310 | 261 | {
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nkeynes@310 | 262 | if( width == 2 ) {
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nkeynes@736 | 263 | dest[y1*stride + x1] = *banks[0]++;
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nkeynes@736 | 264 | dest[(y1+1)*stride + x1] = *banks[offset<3?0:1]++;
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nkeynes@736 | 265 | dest[y1*stride + x1 + 1] = *banks[offset<2?0:1]++;
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nkeynes@736 | 266 | dest[(y1+1)*stride + x1 + 1] = *banks[offset==0?0:1]++;
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nkeynes@736 | 267 | uint8_t *tmp = banks[0]; /* swap banks */
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nkeynes@736 | 268 | banks[0] = banks[1];
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nkeynes@736 | 269 | banks[1] = tmp;
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nkeynes@310 | 270 | } else {
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nkeynes@736 | 271 | int subdivide = width >> 1;
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nkeynes@736 | 272 | pvr2_vram64_detwiddle_8( dest, banks, offset, x1, y1, subdivide, stride );
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nkeynes@736 | 273 | pvr2_vram64_detwiddle_8( dest, banks, offset, x1, y1+subdivide, subdivide, stride );
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nkeynes@736 | 274 | pvr2_vram64_detwiddle_8( dest, banks, offset, x1+subdivide, y1, subdivide, stride );
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nkeynes@736 | 275 | pvr2_vram64_detwiddle_8( dest, banks, offset, x1+subdivide, y1+subdivide, subdivide, stride );
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nkeynes@284 | 276 | }
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nkeynes@310 | 277 | }
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nkeynes@310 | 278 |
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nkeynes@310 | 279 | /**
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nkeynes@310 | 280 | * @param dest Destination image buffer
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nkeynes@310 | 281 | * @param banks Source data expressed as two bank pointers
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nkeynes@310 | 282 | * @param offset Offset into banks[0] specifying where the next word
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nkeynes@310 | 283 | * to read is (0 or 1)
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nkeynes@310 | 284 | * @param x1,y1 Destination coordinates
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nkeynes@310 | 285 | * @param width Width of current destination block
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nkeynes@315 | 286 | * @param stride Total width of image (ie stride)
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nkeynes@310 | 287 | */
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nkeynes@310 | 288 |
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nkeynes@310 | 289 | static void pvr2_vram64_detwiddle_16( uint16_t *dest, uint16_t *banks[2], int offset,
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nkeynes@736 | 290 | int x1, int y1, int width, int stride )
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nkeynes@310 | 291 | {
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nkeynes@310 | 292 | if( width == 2 ) {
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nkeynes@736 | 293 | dest[y1*stride + x1] = *banks[0]++;
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nkeynes@736 | 294 | dest[(y1+1)*stride + x1] = *banks[offset]++;
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nkeynes@736 | 295 | dest[y1*stride + x1 + 1] = *banks[1]++;
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nkeynes@736 | 296 | dest[(y1+1)*stride + x1 + 1] = *banks[offset^1]++;
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nkeynes@310 | 297 | } else {
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nkeynes@736 | 298 | int subdivide = width >> 1;
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nkeynes@736 | 299 | pvr2_vram64_detwiddle_16( dest, banks, offset, x1, y1, subdivide, stride );
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nkeynes@736 | 300 | pvr2_vram64_detwiddle_16( dest, banks, offset, x1, y1+subdivide, subdivide, stride );
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nkeynes@736 | 301 | pvr2_vram64_detwiddle_16( dest, banks, offset, x1+subdivide, y1, subdivide, stride );
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nkeynes@736 | 302 | pvr2_vram64_detwiddle_16( dest, banks, offset, x1+subdivide, y1+subdivide, subdivide, stride );
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nkeynes@310 | 303 | }
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nkeynes@310 | 304 | }
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nkeynes@310 | 305 |
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nkeynes@310 | 306 | /**
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nkeynes@827 | 307 | * Read an image from 64-bit vram stored as twiddled 4-bit pixels. The
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nkeynes@315 | 308 | * image is written out to the destination in detwiddled form.
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nkeynes@315 | 309 | * @param dest destination buffer, which must be at least width*height/2 in length
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nkeynes@315 | 310 | * @param srcaddr source address in vram
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nkeynes@315 | 311 | * @param width image width (must be a power of 2)
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nkeynes@315 | 312 | * @param height image height (must be a power of 2)
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nkeynes@315 | 313 | */
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nkeynes@429 | 314 | void pvr2_vram64_read_twiddled_4( unsigned char *dest, sh4addr_t srcaddr, uint32_t width, uint32_t height )
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nkeynes@315 | 315 | {
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nkeynes@315 | 316 | int offset_flag = (srcaddr & 0x07);
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nkeynes@315 | 317 | uint8_t *banks[2];
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nkeynes@315 | 318 | uint8_t *wdest = (uint8_t*)dest;
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nkeynes@315 | 319 | uint32_t stride = width >> 1;
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nkeynes@429 | 320 | int i;
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nkeynes@315 | 321 |
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nkeynes@315 | 322 | srcaddr = srcaddr & 0x7FFFF8;
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nkeynes@315 | 323 |
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nkeynes@315 | 324 | banks[0] = (uint8_t *)(video_base + (srcaddr>>1));
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nkeynes@315 | 325 | banks[1] = banks[0] + 0x400000;
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nkeynes@315 | 326 | if( offset_flag & 0x04 ) { // If source is not 64-bit aligned, swap the banks
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nkeynes@736 | 327 | uint8_t *tmp = banks[0];
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nkeynes@736 | 328 | banks[0] = banks[1];
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nkeynes@736 | 329 | banks[1] = tmp + 4;
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nkeynes@736 | 330 | offset_flag &= 0x03;
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nkeynes@315 | 331 | }
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nkeynes@315 | 332 | banks[0] += offset_flag;
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nkeynes@315 | 333 |
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nkeynes@315 | 334 | if( width > height ) {
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nkeynes@736 | 335 | for( i=0; i<width; i+=height ) {
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nkeynes@736 | 336 | pvr2_vram64_detwiddle_4( wdest, banks, offset_flag, i, 0, height, stride );
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nkeynes@736 | 337 | }
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nkeynes@315 | 338 | } else if( height > width ) {
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nkeynes@736 | 339 | for( i=0; i<height; i+=width ) {
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nkeynes@736 | 340 | pvr2_vram64_detwiddle_4( wdest, banks, offset_flag, 0, i, width, stride );
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nkeynes@736 | 341 | }
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nkeynes@315 | 342 | } else if( width == 1 ) {
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nkeynes@736 | 343 | *wdest = *banks[0];
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nkeynes@315 | 344 | } else {
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nkeynes@736 | 345 | pvr2_vram64_detwiddle_4( wdest, banks, offset_flag, 0, 0, width, stride );
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nkeynes@827 | 346 | }
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nkeynes@315 | 347 | }
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nkeynes@315 | 348 |
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nkeynes@315 | 349 | /**
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nkeynes@827 | 350 | * Read an image from 64-bit vram stored as twiddled 8-bit pixels. The
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nkeynes@310 | 351 | * image is written out to the destination in detwiddled form.
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nkeynes@310 | 352 | * @param dest destination buffer, which must be at least width*height in length
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nkeynes@310 | 353 | * @param srcaddr source address in vram
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nkeynes@310 | 354 | * @param width image width (must be a power of 2)
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nkeynes@310 | 355 | * @param height image height (must be a power of 2)
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nkeynes@310 | 356 | */
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nkeynes@429 | 357 | void pvr2_vram64_read_twiddled_8( unsigned char *dest, sh4addr_t srcaddr, uint32_t width, uint32_t height )
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nkeynes@310 | 358 | {
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nkeynes@310 | 359 | int offset_flag = (srcaddr & 0x07);
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nkeynes@310 | 360 | uint8_t *banks[2];
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nkeynes@310 | 361 | uint8_t *wdest = (uint8_t*)dest;
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nkeynes@429 | 362 | int i;
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nkeynes@310 | 363 |
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nkeynes@310 | 364 | srcaddr = srcaddr & 0x7FFFF8;
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nkeynes@310 | 365 |
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nkeynes@310 | 366 | banks[0] = (uint8_t *)(video_base + (srcaddr>>1));
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nkeynes@310 | 367 | banks[1] = banks[0] + 0x400000;
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nkeynes@310 | 368 | if( offset_flag & 0x04 ) { // If source is not 64-bit aligned, swap the banks
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nkeynes@736 | 369 | uint8_t *tmp = banks[0];
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nkeynes@736 | 370 | banks[0] = banks[1];
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nkeynes@736 | 371 | banks[1] = tmp + 4;
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nkeynes@736 | 372 | offset_flag &= 0x03;
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nkeynes@310 | 373 | }
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nkeynes@310 | 374 | banks[0] += offset_flag;
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nkeynes@310 | 375 |
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nkeynes@310 | 376 | if( width > height ) {
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nkeynes@736 | 377 | for( i=0; i<width; i+=height ) {
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nkeynes@736 | 378 | pvr2_vram64_detwiddle_8( wdest, banks, offset_flag, i, 0, height, width );
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nkeynes@736 | 379 | }
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nkeynes@310 | 380 | } else if( height > width ) {
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nkeynes@736 | 381 | for( i=0; i<height; i+=width ) {
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nkeynes@736 | 382 | pvr2_vram64_detwiddle_8( wdest, banks, offset_flag, 0, i, width, width );
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nkeynes@736 | 383 | }
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nkeynes@310 | 384 | } else if( width == 1 ) {
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nkeynes@736 | 385 | *wdest = *banks[0];
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nkeynes@310 | 386 | } else {
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nkeynes@736 | 387 | pvr2_vram64_detwiddle_8( wdest, banks, offset_flag, 0, 0, width, width );
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nkeynes@827 | 388 | }
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nkeynes@310 | 389 | }
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nkeynes@310 | 390 |
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nkeynes@310 | 391 | /**
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nkeynes@827 | 392 | * Read an image from 64-bit vram stored as twiddled 16-bit pixels. The
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nkeynes@310 | 393 | * image is written out to the destination in detwiddled form.
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nkeynes@310 | 394 | * @param dest destination buffer, which must be at least width*height*2 in length
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nkeynes@310 | 395 | * @param srcaddr source address in vram (must be 16-bit aligned)
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nkeynes@310 | 396 | * @param width image width (must be a power of 2)
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nkeynes@310 | 397 | * @param height image height (must be a power of 2)
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nkeynes@310 | 398 | */
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nkeynes@429 | 399 | void pvr2_vram64_read_twiddled_16( unsigned char *dest, sh4addr_t srcaddr, uint32_t width, uint32_t height ) {
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nkeynes@310 | 400 | int offset_flag = (srcaddr & 0x06) >> 1;
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nkeynes@310 | 401 | uint16_t *banks[2];
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nkeynes@310 | 402 | uint16_t *wdest = (uint16_t*)dest;
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nkeynes@429 | 403 | int i;
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nkeynes@310 | 404 |
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nkeynes@310 | 405 | srcaddr = srcaddr & 0x7FFFF8;
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nkeynes@310 | 406 |
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nkeynes@310 | 407 | banks[0] = (uint16_t *)(video_base + (srcaddr>>1));
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nkeynes@310 | 408 | banks[1] = banks[0] + 0x200000;
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nkeynes@310 | 409 | if( offset_flag & 0x02 ) { // If source is not 64-bit aligned, swap the banks
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nkeynes@736 | 410 | uint16_t *tmp = banks[0];
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nkeynes@736 | 411 | banks[0] = banks[1];
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nkeynes@736 | 412 | banks[1] = tmp + 2;
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nkeynes@736 | 413 | offset_flag &= 0x01;
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nkeynes@310 | 414 | }
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nkeynes@310 | 415 | banks[0] += offset_flag;
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nkeynes@736 | 416 |
|
nkeynes@310 | 417 |
|
nkeynes@310 | 418 | if( width > height ) {
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nkeynes@736 | 419 | for( i=0; i<width; i+=height ) {
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nkeynes@736 | 420 | pvr2_vram64_detwiddle_16( wdest, banks, offset_flag, i, 0, height, width );
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nkeynes@736 | 421 | }
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nkeynes@310 | 422 | } else if( height > width ) {
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nkeynes@736 | 423 | for( i=0; i<height; i+=width ) {
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nkeynes@736 | 424 | pvr2_vram64_detwiddle_16( wdest, banks, offset_flag, 0, i, width, width );
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nkeynes@736 | 425 | }
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nkeynes@310 | 426 | } else if( width == 1 ) {
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nkeynes@736 | 427 | *wdest = *banks[0];
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nkeynes@310 | 428 | } else {
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nkeynes@736 | 429 | pvr2_vram64_detwiddle_16( wdest, banks, offset_flag, 0, 0, width, width );
|
nkeynes@827 | 430 | }
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nkeynes@284 | 431 | }
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nkeynes@284 | 432 |
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nkeynes@429 | 433 | void pvr2_vram_write_invert( sh4addr_t destaddr, unsigned char *src, uint32_t length, uint32_t line_length,
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nkeynes@736 | 434 | uint32_t src_stride )
|
nkeynes@284 | 435 | {
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nkeynes@429 | 436 | unsigned char *dest = video_base + (destaddr & 0x007FFFFF);
|
nkeynes@429 | 437 | unsigned char *p = src + length - src_stride;
|
nkeynes@284 | 438 | while( p >= src ) {
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nkeynes@736 | 439 | memcpy( dest, p, line_length );
|
nkeynes@736 | 440 | p -= src_stride;
|
nkeynes@736 | 441 | dest += line_length;
|
nkeynes@284 | 442 | }
|
nkeynes@284 | 443 | }
|
nkeynes@284 | 444 |
|
nkeynes@429 | 445 | void pvr2_vram64_read( unsigned char *dest, sh4addr_t srcaddr, uint32_t length )
|
nkeynes@284 | 446 | {
|
nkeynes@284 | 447 | int bank_flag = (srcaddr & 0x04) >> 2;
|
nkeynes@284 | 448 | uint32_t *banks[2];
|
nkeynes@284 | 449 | uint32_t *dwdest;
|
nkeynes@284 | 450 | int i;
|
nkeynes@284 | 451 |
|
nkeynes@284 | 452 | srcaddr = srcaddr & 0x7FFFFF;
|
nkeynes@284 | 453 | if( srcaddr + length > 0x800000 )
|
nkeynes@736 | 454 | length = 0x800000 - srcaddr;
|
nkeynes@284 | 455 |
|
nkeynes@284 | 456 | banks[0] = ((uint32_t *)(video_base + ((srcaddr&0x007FFFF8)>>1)));
|
nkeynes@284 | 457 | banks[1] = banks[0] + 0x100000;
|
nkeynes@284 | 458 | if( bank_flag )
|
nkeynes@736 | 459 | banks[0]++;
|
nkeynes@736 | 460 |
|
nkeynes@284 | 461 | /* Handle non-aligned start of source */
|
nkeynes@284 | 462 | if( srcaddr & 0x03 ) {
|
nkeynes@736 | 463 | char *src = ((char *)banks[bank_flag]) + (srcaddr & 0x03);
|
nkeynes@736 | 464 | for( i= srcaddr & 0x03; i < 4 && length > 0; i++, length-- ) {
|
nkeynes@736 | 465 | *dest++ = *src++;
|
nkeynes@736 | 466 | }
|
nkeynes@736 | 467 | bank_flag = !bank_flag;
|
nkeynes@284 | 468 | }
|
nkeynes@284 | 469 |
|
nkeynes@284 | 470 | dwdest = (uint32_t *)dest;
|
nkeynes@284 | 471 | while( length >= 4 ) {
|
nkeynes@736 | 472 | *dwdest++ = *banks[bank_flag]++;
|
nkeynes@736 | 473 | bank_flag = !bank_flag;
|
nkeynes@736 | 474 | length -= 4;
|
nkeynes@284 | 475 | }
|
nkeynes@736 | 476 |
|
nkeynes@284 | 477 | /* Handle non-aligned end of source */
|
nkeynes@284 | 478 | if( length ) {
|
nkeynes@736 | 479 | dest = (unsigned char *)dwdest;
|
nkeynes@736 | 480 | unsigned char *src = (unsigned char *)banks[bank_flag];
|
nkeynes@736 | 481 | while( length-- > 0 ) {
|
nkeynes@736 | 482 | *dest++ = *src++;
|
nkeynes@736 | 483 | }
|
nkeynes@284 | 484 | }
|
nkeynes@284 | 485 | }
|
nkeynes@284 | 486 |
|
nkeynes@309 | 487 | void pvr2_vram64_dump_file( sh4addr_t addr, uint32_t length, gchar *filename )
|
nkeynes@309 | 488 | {
|
nkeynes@309 | 489 | uint32_t tmp[length>>2];
|
nkeynes@309 | 490 | FILE *f = fopen(filename, "wo");
|
nkeynes@309 | 491 | unsigned int i, j;
|
nkeynes@309 | 492 |
|
nkeynes@309 | 493 | if( f == NULL ) {
|
nkeynes@736 | 494 | ERROR( "Unable to write to dump file '%s' (%s)", filename, strerror(errno) );
|
nkeynes@736 | 495 | return;
|
nkeynes@309 | 496 | }
|
nkeynes@429 | 497 | pvr2_vram64_read( (unsigned char *)tmp, addr, length );
|
nkeynes@309 | 498 | fprintf( f, "%08X\n", addr );
|
nkeynes@309 | 499 | for( i =0; i<length>>2; i+=8 ) {
|
nkeynes@736 | 500 | for( j=i; j<i+8; j++ ) {
|
nkeynes@736 | 501 | if( j < length )
|
nkeynes@736 | 502 | fprintf( f, " %08X", tmp[j] );
|
nkeynes@736 | 503 | else
|
nkeynes@736 | 504 | fprintf( f, " " );
|
nkeynes@736 | 505 | }
|
nkeynes@736 | 506 | fprintf( f, "\n" );
|
nkeynes@309 | 507 | }
|
nkeynes@309 | 508 | fclose(f);
|
nkeynes@309 | 509 | }
|
nkeynes@309 | 510 |
|
nkeynes@827 | 511 | void pvr2_vram64_dump( sh4addr_t addr, uint32_t length, FILE *f )
|
nkeynes@284 | 512 | {
|
nkeynes@429 | 513 | unsigned char tmp[length];
|
nkeynes@284 | 514 | pvr2_vram64_read( tmp, addr, length );
|
nkeynes@284 | 515 | fwrite_dump( tmp, length, f );
|
nkeynes@284 | 516 | }
|
nkeynes@315 | 517 |
|
nkeynes@315 | 518 |
|
nkeynes@315 | 519 |
|
nkeynes@315 | 520 | /**
|
nkeynes@315 | 521 | * Flush the indicated render buffer back to PVR. Caller is responsible for
|
nkeynes@315 | 522 | * tracking whether there is actually anything in the buffer.
|
nkeynes@315 | 523 | *
|
nkeynes@827 | 524 | * FIXME: Handle horizontal scaler
|
nkeynes@827 | 525 | *
|
nkeynes@315 | 526 | * @param buffer A render buffer indicating the address to store to, and the
|
nkeynes@315 | 527 | * format the data needs to be in.
|
nkeynes@827 | 528 | * @param backBuffer TRUE to flush the back buffer, FALSE for
|
nkeynes@315 | 529 | * the front buffer.
|
nkeynes@315 | 530 | */
|
nkeynes@352 | 531 | void pvr2_render_buffer_copy_to_sh4( render_buffer_t buffer )
|
nkeynes@315 | 532 | {
|
nkeynes@429 | 533 | if( (buffer->address & 0xFF000000) == 0x04000000 ) {
|
nkeynes@736 | 534 | /* Interlaced buffer. Go the double copy... :( */
|
nkeynes@736 | 535 | unsigned char target[buffer->size];
|
nkeynes@736 | 536 | display_driver->read_render_buffer( target, buffer, buffer->rowstride, buffer->colour_format );
|
nkeynes@736 | 537 | pvr2_vram64_write( buffer->address, target, buffer->size );
|
nkeynes@315 | 538 | } else {
|
nkeynes@736 | 539 | /* Regular buffer */
|
nkeynes@429 | 540 | unsigned char target[buffer->size];
|
nkeynes@736 | 541 | int line_size = buffer->width * colour_formats[buffer->colour_format].bpp;
|
nkeynes@736 | 542 | display_driver->read_render_buffer( target, buffer, buffer->rowstride, buffer->colour_format );
|
nkeynes@352 | 543 | if( (buffer->scale & 0xFFFF) == 0x0800 ) {
|
nkeynes@352 | 544 | pvr2_vram_write_invert( buffer->address, target, buffer->size, line_size, line_size << 1 );
|
nkeynes@352 | 545 | } else {
|
nkeynes@352 | 546 | pvr2_vram_write_invert( buffer->address, target, buffer->size, line_size, line_size );
|
nkeynes@352 | 547 | }
|
nkeynes@315 | 548 | }
|
nkeynes@315 | 549 | }
|
nkeynes@315 | 550 |
|