void yuv_conv_frame(video_txr_t *txr, AVFrame *frame, AVCodecContext *codec, int block) {
uint32 size = mblock_copy(frame->data[0], frame->data[1], frame->data[2], txr->backbuf, codec->width, codec->height);
dcache_flush_range((uint32)txr->backbuf, size);
while (!pvr_dma_ready());
pvr_dma_transfer((void*)txr->backbuf, PVR_YUV_CONV, size, PVR_DMA_TA, 0, NULL, 0);
if(block) {
sem_wait(&yuv_done);
// printf("PVR: YUV Macroblocks Converted: %ld\n", PVR_GET(PVR_YUV_STAT));
}
}
MMIO_REGION_WRITE_FN( ASIC, reg, val )
{
reg &= 0xFFF;
switch( reg ) {
case PIRQ1:
break; /* Treat this as read-only for the moment */
case PIRQ0:
val = val & 0x3FFFFFFF; /* Top two bits aren't clearable */
MMIO_WRITE( ASIC, reg, MMIO_READ(ASIC, reg)&~val );
asic_check_cleared_events();
break;
case PIRQ2:
/* Clear any events */
val = MMIO_READ(ASIC, reg)&(~val);
MMIO_WRITE( ASIC, reg, val );
if( val == 0 ) { /* all clear - clear the cascade bit */
MMIO_WRITE( ASIC, PIRQ0, MMIO_READ( ASIC, PIRQ0 ) & 0x7FFFFFFF );
}
asic_check_cleared_events();
break;
case IRQA0:
case IRQA1:
case IRQA2:
case IRQB0:
case IRQB1:
case IRQB2:
case IRQC0:
case IRQC1:
case IRQC2:
MMIO_WRITE( ASIC, reg, val );
asic_event_mask_changed();
break;
case SYSRESET:
if( val == 0x7611 ) {
dreamcast_reset();
} else {
WARN( "Unknown value %08X written to SYSRESET port", val );
}
break;
case MAPLE_STATE:
maple_set_dma_state( val );
break;
case PVRDMADEST:
MMIO_WRITE( ASIC, reg, (val & 0x03FFFFE0) | 0x10000000 );
break;
case PVRDMACNT:
MMIO_WRITE( ASIC, reg, val & 0x00FFFFE0 );
break;
case PVRDMACTL: /* Initiate PVR DMA transfer */
val = val & 0x01;
MMIO_WRITE( ASIC, reg, val );
if( val == 1 ) {
pvr_dma_transfer();
}
break;
case SORTDMATBL: case SORTDMADATA:
MMIO_WRITE( ASIC, reg, (val & 0x0FFFFFE0) | 0x08000000 );
break;
case SORTDMATSIZ: case SORTDMAASIZ:
MMIO_WRITE( ASIC, reg, (val & 1) );
break;
case SORTDMACTL:
val = val & 1;
MMIO_WRITE( ASIC, reg, val );
if( val == 1 ) {
sort_dma_transfer();
}
break;
case MAPLE_DMA:
MMIO_WRITE( ASIC, reg, val );
break;
default:
MMIO_WRITE( ASIC, reg, val );
}
}
/* Open the pvr texture and send it to VRAM, then bind it to the glKosTex2D context */
void loadpvr( const char * file_name, GLuint *txr ) {
/* set up the files and buffers */
FILE * pvr_file;
char * pvr_header, * pvr_buffer;
int header_len;
struct pvr_tex pvr;
/* open the pvr file */
pvr_file = fopen( file_name ,"rb");
if (pvr_file==NULL) printf ("File error",stderr);
/* Read the possible 0x00100000 byte header */
pvr_header = (char*)malloc( 32 );
fread( pvr_header, 16, 2, pvr_file);
/* obtain the PVR file size using fseek */
fseek (pvr_file , 0 , SEEK_END);
int pvrSize = ftell (pvr_file);
/* Move to the begining of the PVR file */
fseek (pvr_file , 0, SEEK_SET);
/* Allocate RAM to contain the PVR file */
if( pvr_buffer ) free( pvr_buffer );
pvr_buffer = (char*)memalign( 32, pvrSize );
//pvr_buffer = (char*)malloc( pvrSize );
if ( pvr_buffer == NULL ) printf ("Memory error\n");
/* GBIX = 0x00100000 byte header */
if( (char)pvr_header[0] == 'G' && (char)pvr_header[1] == 'B'
&& (char)pvr_header[2] == 'I' && (char)pvr_header[3] == 'X' )
header_len = 32;
/* PVRT = 0x00010000 byte header */
else if ( (char)pvr_header[0] == 'P' && (char)pvr_header[1] == 'V'
&& (char)pvr_header[2] == 'R' )
header_len = 16;
/* Move past the header */
fseek (pvr_file , header_len, SEEK_SET);
/* Read the pvr texture data into RAM and close the file */
fread (pvr_buffer,16,(pvrSize-header_len)/16,pvr_file);
fclose( pvr_file );
/* Get PVR Colorspace */
unsigned int pvr_color = (unsigned int)pvr_header[header_len-8];
switch( pvr_color ) {
case 0x00: pvr.txrColor = PVR_TXRFMT_ARGB1555; break; //(bilevel translucent alpha 0,255)
case 0x01: pvr.txrColor = PVR_TXRFMT_RGB565; break; //(non translucent RGB565 )
case 0x02: pvr.txrColor = PVR_TXRFMT_ARGB4444; break; //(translucent alpha 0-255)
case 0x03: pvr.txrColor = PVR_TXRFMT_YUV422; break; //(non translucent UYVY )
case 0x04: pvr.txrColor = PVR_TXRFMT_BUMP; break; //(special bump-mapping format)
case 0x05: pvr.txrColor = PVR_TXRFMT_PAL4BPP; break; //(4-bit palleted texture)
case 0x06: pvr.txrColor = PVR_TXRFMT_PAL8BPP; break; //(8-bit palleted texture)
default: break;
}
/* Get PVR Format. Mip-Maps and Palleted Textures not Currently handled */
unsigned int pvr_fmt = (unsigned int)pvr_header[header_len-7];
switch( pvr_fmt ) {
case 0x01: pvr.txrFmt = PVR_TXRFMT_TWIDDLED; break;//SQUARE TWIDDLED
//case 0x02: pvr.txrFmt = SQUARE TWIDDLED & MIPMAP
case 0x03: pvr.txrFmt = PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_TWIDDLED; break;//VQ TWIDDLED
//case 0x04: pvr.txrFmt = VQ & MIPMAP
//case 0X05: pvr.txrFmt = 8-BIT CLUT TWIDDLED
//case 0X06: pvr.txrFmt = 4-BIT CLUT TWIDDLED
//case 0x07: pvr.txrFmt = 8-BIT DIRECT TWIDDLED
//case 0X08: pvr.txrFmt = 4-BIT DIRECT TWIDDLED
case 0x09: pvr.txrFmt = PVR_TXRFMT_NONTWIDDLED; break;//RECTANGLE
case 0x0B: pvr.txrFmt = PVR_TXRFMT_STRIDE | PVR_TXRFMT_NONTWIDDLED; break;//RECTANGULAR STRIDE
case 0x0D: pvr.txrFmt = PVR_TXRFMT_TWIDDLED; break;//RECTANGULAR TWIDDLED
case 0x10: pvr.txrFmt = PVR_TXRFMT_VQ_ENABLE | PVR_TXRFMT_NONTWIDDLED; break;//SMALL VQ
//case 0x11: pvr.txrFmt = SMALL VQ & MIPMAP
//case 0x12: pvr.txrFmt = SQUARE TWIDDLED & MIPMAP
default: pvr.txrFmt = PVR_TXRFMT_NONE; break;
}
/* Get PVR Texture Width */
if( (unsigned int)pvr_header[header_len-4] == 0x08 && (unsigned int)pvr_header[header_len-3] == 0x00 )
pvr.texWidth = 8;
else if( (unsigned int)pvr_header[header_len-4] == 0x10 && (unsigned int)pvr_header[header_len-3] == 0x00 )
pvr.texWidth = 16;
else if( (unsigned int)pvr_header[header_len-4] == 0x20 && (unsigned int)pvr_header[header_len-3] == 0x00 )
pvr.texWidth = 32;
else if( (unsigned int)pvr_header[header_len-4] == 0x40 && (unsigned int)pvr_header[header_len-3] == 0x00 )
pvr.texWidth = 64;
else if( (unsigned int)pvr_header[header_len-4] == -0x80 && (unsigned int)pvr_header[header_len-3] == 0x00 )
pvr.texWidth = 128;
else if( (unsigned int)pvr_header[header_len-4] == 0x00 && (unsigned int)pvr_header[header_len-3] == 0x01 )
pvr.texWidth = 256;
else if( (unsigned int)pvr_header[header_len-4] == 0x00 && (unsigned int)pvr_header[header_len-3] == 0x02 )
pvr.texWidth = 512;
else if( (unsigned int)pvr_header[header_len-4] == 0x00 && (unsigned int)pvr_header[header_len-3] == 0x04 )
pvr.texWidth = 1024;
/* Get PVR Texture Height */
if( (unsigned int)pvr_header[header_len-2] == 0x08 && (unsigned int)pvr_header[header_len-1] == 0x00 )
pvr.texHeight = 8;
else if( (unsigned int)pvr_header[header_len-2] == 0x10 && (unsigned int)pvr_header[header_len-1] == 0x00 )
pvr.texHeight = 16;
else if( (unsigned int)pvr_header[header_len-2] == 0x20 && (unsigned int)pvr_header[header_len-1] == 0x00 )
pvr.texHeight = 32;
else if( (unsigned int)pvr_header[header_len-2] == 0x40 && (unsigned int)pvr_header[header_len-1] == 0x00 )
pvr.texHeight = 64;
else if( (unsigned int)pvr_header[header_len-2] == -0x80 && (unsigned int)pvr_header[header_len-1] == 0x00 )
pvr.texHeight = 128;
else if( (unsigned int)pvr_header[header_len-2] == 0x00 && (unsigned int)pvr_header[header_len-1] == 0x01 )
pvr.texHeight = 256;
else if( (unsigned int)pvr_header[header_len-2] == 0x00 && (unsigned int)pvr_header[header_len-1] == 0x02 )
pvr.texHeight = 512;
else if( (unsigned int)pvr_header[header_len-2] == 0x00 && (unsigned int)pvr_header[header_len-1] == 0x04 )
pvr.texHeight = 1024;
printf("PVR TXR Size: %i bytes, %ix%i pixels\n", pvrSize, pvr.texWidth, pvr.texHeight );
/* Allocate VRAM */
if(pvr.txrAddr) pvr_mem_free(pvr.txrAddr);
pvr.txrAddr = pvr_mem_malloc(pvrSize);
/* Transfer the texture from RAM to VRAM */
/* SH4->PVR DMA Transfer */
if( header_len != 16 ) {
if( pvrSize > 16384)
dcache_flush_range((uint32)pvr_buffer, 16384);
else
dcache_flush_range((uint32)pvr_buffer, pvrSize);
while (!pvr_dma_ready());
pvr_dma_transfer( (void*)pvr_buffer, (uint32)pvr.txrAddr, pvrSize,
PVR_DMA_VRAM64, PVR_TXRLOAD_NONBLOCK, NULL, 0);
}
/* SH4->PVR SQ Transfer */
else {
pvr_txr_load( pvr_buffer, pvr.txrAddr, pvrSize);
}
/* Free the RAM */
if( pvr_header ) free( pvr_header );
if( pvr_buffer ) free( pvr_buffer );
/* Bind the texture data to the glTex2D context */
glKosTex2D( pvr.txrColor | pvr.txrFmt, pvr.texWidth, pvr.texHeight, pvr.txrAddr);
}