void run_demo(packet_t *packet)
{
int context = 0;
vertex_t v0;
color_t c0;
color_t c1;
texbuffer_t texbuf;
clutbuffer_t clut;
lod_t lod;
packet_t *packets[2];
packet_t *current;
packets[0] = packet_init(10000,PACKET_NORMAL);
packets[1] = packet_init(10000,PACKET_NORMAL);
// Use linear filtering for good scaling results
lod.calculation = LOD_USE_K;
lod.max_level = 0;
lod.mag_filter = LOD_MAG_LINEAR;
lod.min_filter = LOD_MIN_LINEAR;
lod.l = 0;
lod.k = 0;
texbuf.width = 512;
texbuf.psm = GS_PSM_4;
texbuf.address = myaddress;
texbuf.info.width = draw_log2(512);
texbuf.info.height = draw_log2(256);
texbuf.info.components = TEXTURE_COMPONENTS_RGBA;
texbuf.info.function = TEXTURE_FUNCTION_MODULATE;
clut.storage_mode = CLUT_STORAGE_MODE1;
clut.start = 0;
clut.psm = GS_PSM_32;
clut.load_method = CLUT_LOAD;
clut.address = clutaddress;
v0.x = 320.0f;
v0.y = 240.0f;
v0.z = 4;
c0.r = 0xFF;
c0.g = 0xFF;
c0.b = 0xFF;
c0.a = 0x80;
c0.q = 1.0f;
c1.r = 0xFF;
c1.g = 0x00;
c1.b = 0x00;
c1.a = 0x40;
c1.q = 1.0f;
// UTF-8
unsigned char str0[] = { 0x61, 0x62, 0xC2, 0xA9, 0x78, 0xC2, 0xA5, 0xC2, 0xB2, '\0'};
// Shift-JIS
unsigned char str1[] = {0x81, 0xBC, 0x93, 0xF1, 0x93, 0xF1, 0x93, 0xF1, 0x81, 0x69, 0x81, 0x40, 0x81,
0x4F, 0x83, 0xD6, 0x81, 0x4F, 0x81, 0x6A, 0x93, 0xF1, 0x81, 0xBD, 0x0D, '\0' };
qword_t *q = packet->data;
while(1)
{
current = packets[context];
q = current->data;
q = draw_clear(q,0,0,0,640.0f,448.0f,0x40,0x40,0x40);
q = draw_texture_sampling(q,0,&lod);
q = draw_texturebuffer(q,0,&texbuf,&clut);
impress.scale = 3.0f;
q = fontx_print_sjis(q,0,str1,CENTER_ALIGN,&v0,&c0,&krom_u,&krom_k);
q = fontstudio_print_string(q,0,str0,CENTER_ALIGN,&v0,&c1,&impress);
q = draw_finish(q);
dma_wait_fast();
dma_channel_send_normal(DMA_CHANNEL_GIF,current->data, q - current->data, 0,0);
draw_wait_finish();
context ^= 1;
graph_wait_vsync();
}
free(packets[0]);
free(packets[1]);
}
/* data (anything). */
static void* InitCB ( void* apParam, MPEGSequenceInfo* apInfo ) {
int lDataSize = apInfo -> m_Width * apInfo -> m_Height * 4;
char* retVal = ( char* )malloc ( lDataSize );
InitCBParam* lpParam = ( InitCBParam* )apParam;
int lMBW = ( apInfo -> m_Width ) >> 4;
int lMBH = ( apInfo -> m_Height ) >> 4;
int lTBW = ( apInfo -> m_Width + 63 ) >> 6;
int lTW = draw_log2 ( apInfo -> m_Width );
int lTH = draw_log2 ( apInfo -> m_Height );
int lX, lY;
char* lpImg;
QWORD* q;
lpParam -> m_TexAddr >>= 6;
lpParam -> m_pData = lpImg = retVal;
lpParam -> m_pInfo = apInfo;
SyncDCache ( retVal, retVal + lDataSize );
/* This initializes picture transfer packet. */
/* Decoded picture is a sequence of 16x16 pixels */
/* 'subpictures' (macroblocks) and DMA controller */
/* will transfer them all at once using source */
/* chain transfer mode. */
packet_allocate(&lpParam -> m_XFerPck,(10 + 12 * lMBW * lMBH )>>1,0,0);
q = lpParam-> m_XFerPck.data;
DMATAG_CNT(q, 3, 0, 0, 0);
q++;
PACK_GIFTAG(q,GIF_SET_TAG( 2, 0, 0, 0, 0, 1 ),GIF_REG_AD);
q++;
PACK_GIFTAG(q,GS_SET_TRXREG( 16, 16 ), GS_REG_TRXREG);
q++;
PACK_GIFTAG(q,GS_SET_BITBLTBUF( 0, 0, 0, lpParam -> m_TexAddr, lTBW, GS_PSM_32 ), GS_REG_BITBLTBUF);
q++;
for ( lY = 0; lY < apInfo -> m_Height; lY += 16 ) {
for ( lX = 0; lX < apInfo -> m_Width; lX += 16, lpImg += 1024 ) {
DMATAG_CNT(q, 4, 0, 0, 0 );
q++;
PACK_GIFTAG(q,GIF_SET_TAG( 2, 0, 0, 0, 0, 1 ), GIF_REG_AD );
q++;
PACK_GIFTAG(q,GS_SET_TRXPOS( 0, 0, lX, lY, 0 ), GS_REG_TRXPOS );
q++;
PACK_GIFTAG(q,GS_SET_TRXDIR( 0 ), GS_REG_TRXDIR );
q++;
PACK_GIFTAG(q,GIF_SET_TAG( 64, 1, 0, 0, 2, 0),0);
q++;
DMATAG_REF(q, 64, ( unsigned )lpImg, 0, 0, 0);
q++;
} /* end for */
} /* end for */
//DMATAG_END(q,0,0,0,0);
//q++;
lpParam-> m_XFerPck.qwc = q - lpParam-> m_XFerPck.data;
/* This initializes picture drawing packet. Just textrured sprite */
/* that occupies the whole screen (no aspect ratio is taken into */
/* account for simplicity. */
packet_allocate(&lpParam -> m_DrawPck,7,0,0);
q = lpParam -> m_DrawPck.data;
PACK_GIFTAG(q, GIF_SET_TAG( 6, 1, 0, 0, 0, 1 ), GIF_REG_AD );
q++;
PACK_GIFTAG(q, GS_SET_TEX0( lpParam -> m_TexAddr, lTBW, GS_PSM_32, lTW, lTH, 1, 1, 0, 0, 0, 0, 0 ), GS_REG_TEX0_1 );
q++;
PACK_GIFTAG(q, GS_SET_PRIM( 6, 0, 1, 0, 0, 0, 1, 0, 0 ), GS_REG_PRIM );
q++;
PACK_GIFTAG(q, GS_SET_UV( 0, 0 ), GS_REG_UV );
q++;
PACK_GIFTAG(q, GS_SET_XYZ( 0, 0, 0 ), GS_REG_XYZ2 );
q++;
PACK_GIFTAG(q, GS_SET_UV( apInfo -> m_Width << 4, apInfo -> m_Height << 4 ), GS_REG_UV );
q++;
PACK_GIFTAG(q, GS_SET_XYZ( 640 << 4, 512 << 4, 0 ), GS_REG_XYZ2 );
q++;
lpParam -> m_DrawPck.qwc = q - lpParam -> m_DrawPck.data;
return retVal;
} /* end InitCB */
