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#include "stdafx.h"
#include "scumm.h"
#include "dc.h"
#define SCREEN_W 320
#define SCREEN_H 200
#define MOUSE_W 64
#define MOUSE_H 64
#define NUM_BUFFERS 4
#define QACR0 (*(volatile unsigned int *)(void *)0xff000038)
#define QACR1 (*(volatile unsigned int *)(void *)0xff00003c)
static unsigned char *screen = NULL;
static unsigned short *mouse = NULL;
static void *screen_tx[NUM_BUFFERS] = { NULL, };
static void *mouse_tx[NUM_BUFFERS] = { NULL, };
static int current_buffer = 0;
static int shakePos = 0;
unsigned short palette[256];
#define COPYPIXEL(n) do { \
unsigned short _tmp = pal[*s++]; \
d[n] = _tmp|(pal[*s++]<<16); \
} while(0)
static void texture_memcpy64_pal(void *dest, void *src, int cnt, unsigned short *pal)
{
unsigned char *s = (unsigned char *)src;
unsigned int *d = (unsigned int *)(void *)
(0xe0000000 | (((unsigned long)dest) & 0x03ffffc0));
QACR0 = ((0xa4000000>>26)<<2)&0x1c;
QACR1 = ((0xa4000000>>26)<<2)&0x1c;
while(cnt--) {
COPYPIXEL(0);
COPYPIXEL(1);
COPYPIXEL(2);
COPYPIXEL(3);
asm("pref @%0" : : "r" (s+4*16));
COPYPIXEL(4);
COPYPIXEL(5);
COPYPIXEL(6);
COPYPIXEL(7);
asm("pref @%0" : : "r" (d));
d += 8;
COPYPIXEL(0);
COPYPIXEL(1);
COPYPIXEL(2);
COPYPIXEL(3);
asm("pref @%0" : : "r" (s+4*16));
COPYPIXEL(4);
COPYPIXEL(5);
COPYPIXEL(6);
COPYPIXEL(7);
asm("pref @%0" : : "r" (d));
d += 8;
}
}
void commit_dummy_transpoly()
{
struct polygon_list mypoly;
mypoly.cmd =
TA_CMD_POLYGON|TA_CMD_POLYGON_TYPE_TRANSPARENT|TA_CMD_POLYGON_SUBLIST|
TA_CMD_POLYGON_STRIPLENGTH_2|TA_CMD_POLYGON_PACKED_COLOUR;
mypoly.mode1 = TA_POLYMODE1_Z_ALWAYS|TA_POLYMODE1_NO_Z_UPDATE;
mypoly.mode2 =
TA_POLYMODE2_BLEND_SRC_ALPHA|TA_POLYMODE2_BLEND_DST_INVALPHA|
TA_POLYMODE2_FOG_DISABLED|TA_POLYMODE2_ENABLE_ALPHA;
mypoly.texture = 0;
mypoly.red = mypoly.green = mypoly.blue = mypoly.alpha = 0;
ta_commit_list(&mypoly);
}
void updatePalette(Scumm *s)
{
int first = s->_palDirtyMin;
int num = s->_palDirtyMax - first + 1;
unsigned char *src = s->_currentPalette;
unsigned short *dst = palette + first;
src += first*3;
if(num>0)
while( num-- ) {
*dst++ = ((src[0]<<7)&0x7c00)|
((src[1]<<2)&0x03e0)|
((src[2]>>3)&0x001f);
src += 3;
}
}
void blitToScreen(Scumm *s, unsigned char *src, int x, int y, int w, int h)
{
unsigned char *dst = screen + y*SCREEN_W + x;
do {
memcpy(dst, src, w);
dst += SCREEN_W;
src += SCREEN_W;
} while (--h);
}
void setShakePos(Scumm *s, int shake_pos)
{
shakePos = shake_pos;
}
void updateScreen(Scumm *s)
{
struct polygon_list mypoly;
struct packed_colour_vertex_list myvertex;
unsigned short *dst = (unsigned short *)screen_tx[current_buffer];
unsigned char *src = screen;
// while((*((volatile unsigned int *)(void*)0xa05f810c) & 0x3ff) != 200);
// *((volatile unsigned int *)(void*)0xa05f8040) = 0xff0000;
if(s->_palDirtyMax != -1) {
updatePalette(s);
}
for( int y = 0; y<SCREEN_H; y++ )
{
texture_memcpy64_pal( dst, src, SCREEN_W>>5, palette );
src += SCREEN_W;
dst += SCREEN_W;
}
// *((volatile unsigned int *)(void*)0xa05f8040) = 0x00ff00;
mypoly.cmd =
TA_CMD_POLYGON|TA_CMD_POLYGON_TYPE_OPAQUE|TA_CMD_POLYGON_SUBLIST|
TA_CMD_POLYGON_STRIPLENGTH_2|TA_CMD_POLYGON_PACKED_COLOUR|TA_CMD_POLYGON_TEXTURED;
mypoly.mode1 = TA_POLYMODE1_Z_ALWAYS|TA_POLYMODE1_NO_Z_UPDATE;
mypoly.mode2 =
TA_POLYMODE2_BLEND_SRC|TA_POLYMODE2_FOG_DISABLED|TA_POLYMODE2_TEXTURE_REPLACE|
TA_POLYMODE2_U_SIZE_512|TA_POLYMODE2_V_SIZE_512;
mypoly.texture = TA_TEXTUREMODE_ARGB1555|TA_TEXTUREMODE_NON_TWIDDLED|
TA_TEXTUREMODE_STRIDE|TA_TEXTUREMODE_ADDRESS(screen_tx[current_buffer]);
mypoly.red = mypoly.green = mypoly.blue = mypoly.alpha = 0;
ta_begin_frame();
// *((volatile unsigned int *)(void*)0xa05f8040) = 0x0000ff;
ta_commit_list(&mypoly);
myvertex.cmd = TA_CMD_VERTEX;
myvertex.ocolour = 0;
myvertex.colour = 0;
myvertex.z = 0.5;
myvertex.u = 0.0;
myvertex.v = 0.0;
myvertex.x = 0.0;
myvertex.y = shakePos*2.0;
ta_commit_list(&myvertex);
myvertex.x = SCREEN_W*2.0;
myvertex.u = SCREEN_W/512.0;
ta_commit_list(&myvertex);
myvertex.x = 0.0;
myvertex.y += SCREEN_H*2.0;
myvertex.u = 0.0;
myvertex.v = SCREEN_H/512.0;
ta_commit_list(&myvertex);
myvertex.x = SCREEN_W*2.0;
myvertex.u = SCREEN_W/512.0;
myvertex.cmd |= TA_CMD_VERTEX_EOS;
ta_commit_list(&myvertex);
ta_commit_end();
// *((volatile unsigned int *)(void*)0xa05f8040) = 0xffff00;
s->drawMouse();
// *((volatile unsigned int *)(void*)0xa05f8040) = 0xff00ff;
ta_commit_frame();
current_buffer++;
current_buffer &= NUM_BUFFERS-1;
// *((volatile unsigned int *)(void*)0xa05f8040) = 0x0;
}
void drawMouse(Scumm *s, int xdraw, int ydraw, int w, int h,
unsigned char *buf, bool visible)
{
struct polygon_list mypoly;
struct packed_colour_vertex_list myvertex;
unsigned short *dst = (unsigned short *)mouse_tx[current_buffer];
int y=0;
if(visible && w<=MOUSE_W && h<=MOUSE_H)
for(int y=0; y<h; y++) {
int x;
for(x=0; x<w; x++)
if(*buf == 0xff) {
*dst++ = 0;
buf++;
} else
*dst++ = palette[*buf++]|0x8000;
dst += MOUSE_W-x;
}
else
w = h = 0;
mypoly.cmd =
TA_CMD_POLYGON|TA_CMD_POLYGON_TYPE_TRANSPARENT|TA_CMD_POLYGON_SUBLIST|
TA_CMD_POLYGON_STRIPLENGTH_2|TA_CMD_POLYGON_PACKED_COLOUR|TA_CMD_POLYGON_TEXTURED;
mypoly.mode1 = TA_POLYMODE1_Z_ALWAYS|TA_POLYMODE1_NO_Z_UPDATE;
mypoly.mode2 =
TA_POLYMODE2_BLEND_SRC_ALPHA|TA_POLYMODE2_BLEND_DST_INVALPHA|
TA_POLYMODE2_FOG_DISABLED|TA_POLYMODE2_TEXTURE_REPLACE|
TA_POLYMODE2_U_SIZE_64|TA_POLYMODE2_V_SIZE_64;
mypoly.texture = TA_TEXTUREMODE_ARGB1555|TA_TEXTUREMODE_NON_TWIDDLED|
TA_TEXTUREMODE_ADDRESS(mouse_tx[current_buffer]);
mypoly.red = mypoly.green = mypoly.blue = mypoly.alpha = 0;
ta_commit_list(&mypoly);
myvertex.cmd = TA_CMD_VERTEX;
myvertex.ocolour = 0;
myvertex.colour = 0xffff00;
myvertex.z = 0.25;
myvertex.u = 0.0;
myvertex.v = 0.0;
myvertex.x = xdraw*2.0;
myvertex.y = (ydraw+shakePos)*2.0;
ta_commit_list(&myvertex);
myvertex.x += w*2.0;
myvertex.u = w*(1.0/MOUSE_W);
ta_commit_list(&myvertex);
myvertex.x = xdraw*2.0;
myvertex.y += h*2.0;
myvertex.u = 0.0;
myvertex.v = h*(1.0/MOUSE_H);
ta_commit_list(&myvertex);
myvertex.x += w*2.0;
myvertex.u = w*(1.0/MOUSE_W);
myvertex.cmd |= TA_CMD_VERTEX_EOS;
ta_commit_list(&myvertex);
}
void initGraphics(Scumm *s, bool fullScreen)
{
ta_sync();
if(!screen)
screen = new unsigned char[SCREEN_W*SCREEN_H];
for(int i=0; i<NUM_BUFFERS; i++)
if(!screen_tx[i])
screen_tx[i] = ta_txalloc(SCREEN_W*SCREEN_H*2);
for(int i=0; i<NUM_BUFFERS; i++)
if(!mouse_tx[i])
mouse_tx[i] = ta_txalloc(MOUSE_W*MOUSE_H*2);
current_buffer = 0;
shakePos = 0;
*(volatile unsigned int *)(0xa05f80e4) = SCREEN_W/32; //stride
// dc_reset_screen(0, 0);
}
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