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« on: June 14, 2014, 06:55:08 pm »
Hello once again! I have a question:
#include <stdio.h>
#include <math.h>
#include "glut.h"
#pragma comment (lib,"glut32.lib")
unsigned char redfr,greenfr,bluefr,alphafr;
float redfo,greenfo,bluefo,alphafo;
float redenv,greenenv,blueenv,alphaenv;
float redbl,greenbl,bluebl,alphabl;
float redpr,greenpr,bluepr,alphapr;
float cr,cg,cb,sr,sg,sb,wr,wg,wb;
short k0,k1,k2,k3,k4,k5;
void execucode(unsigned char ucode[176])
{
switch(ucode[0]&0x3F)
{
case 0x00:
{
//NOOP
break;
}
case 0x08:
{
//TRI
float fucode[176];
for(int i=0; i<176; i++)
{
fucode[i] = ucode[i];
}
bool flip = (ucode[1]&0x80) ? true : false;
char mipmaps = (ucode[1]&0x38)>>3;
char tile = ucode[1]&0x07;
float yl = (ucode[2]&0x1F)*64 + (fucode[3]/4);
if(ucode[2]&0x20) yl -= 2048;
float ym = (ucode[4]&0x1F)*64 + (fucode[5]/4);
if(ucode[4]&0x20) ym -= 2048;
float yh = (ucode[6]&0x1F)*64 + (fucode[7]/4);
if(ucode[6]&0x20) yl -= 2048;
float xl = (fucode[8]*256) + (fucode[9]) + (fucode[10]/256) + (fucode[11]/65536);
if(ucode[8]&0x80) xl -= 65536;
float dxldy = (fucode[12]*256) + (fucode[13]) + (fucode[14]/256) + (fucode[15]/65536);
if(ucode[12]&0x80) dxldy -= 65536;
float xh = (fucode[16]*256) + (fucode[17]) + (fucode[18]/256) + (fucode[19]/65536);
if(ucode[16]&0x80) xh -= 65536;
float dxhdy = (fucode[20]*256) + (fucode[21]) + (fucode[22]/256) + (fucode[23]/65536);
if(ucode[20]&0x80) dxhdy -= 65536;
float xm = (fucode[24]*256) + (fucode[25]) + (fucode[26]/256) + (fucode[27]/65536);
if(ucode[24]&0x80) xm -= 65536;
float dxmdy = (fucode[28]*256) + (fucode[29]) + (fucode[30]/256) + (fucode[31]/65536);
if(ucode[28]&0x80) dxmdy -= 65536;
if(flip)
{
glBegin(GL_TRIANGLES);
glVertex2f(xh-(dxhdy*(yl-floor(yh))),yl);
glVertex2f(xl+(dxldy*(ceil(ym)-ym)),ym);
glVertex2f(xm+(dxmdy*(yh-floor(yh))),yh);
glEnd();
}
else
{
glBegin(GL_TRIANGLES);
glVertex2f(xh+(dxhdy*(yl-floor(yh))),yl);
glVertex2f(xl-(dxldy*(ceil(ym)-ym)),ym);
glVertex2f(xm-(dxmdy*(yh-floor(yh))),yh);
glEnd();
}
break;
}
case 0x09:
{
//TRI_Z
float fucode[176];
for(int i=0; i<176; i++)
{
fucode[i] = ucode[i];
}
bool flip = (ucode[1]&0x80) ? true : false;
char mipmaps = (ucode[1]&0x38)>>3;
char tile = ucode[1]&0x07;
float yl = (ucode[2]&0x1F)*64 + (fucode[3]/4);
if(ucode[2]&0x20) yl -= 2048;
float ym = (ucode[4]&0x1F)*64 + (fucode[5]/4);
if(ucode[4]&0x20) ym -= 2048;
float yh = (ucode[6]&0x1F)*64 + (fucode[7]/4);
if(ucode[6]&0x20) yl -= 2048;
float xl = (fucode[8]*256) + (fucode[9]) + (fucode[10]/256) + (fucode[11]/65536);
if(ucode[8]&0x80) xl -= 65536;
float dxldy = (fucode[12]*256) + (fucode[13]) + (fucode[14]/256) + (fucode[15]/65536);
if(ucode[12]&0x80) dxldy -= 65536;
float xh = (fucode[16]*256) + (fucode[17]) + (fucode[18]/256) + (fucode[19]/65536);
if(ucode[16]&0x80) xh -= 65536;
float dxhdy = (fucode[20]*256) + (fucode[21]) + (fucode[22]/256) + (fucode[23]/65536);
if(ucode[20]&0x80) dxhdy -= 65536;
float xm = (fucode[24]*256) + (fucode[25]) + (fucode[26]/256) + (fucode[27]/65536);
if(ucode[24]&0x80) xm -= 65536;
float dxmdy = (fucode[28]*256) + (fucode[29]) + (fucode[30]/256) + (fucode[31]/65536);
if(ucode[28]&0x80) dxmdy -= 65536;
float z = (fucode[28]*256) + (fucode[29]) + (fucode[30]/256) + (fucode[31]/65536);
if(ucode[28]&0x80) z -= 65536;
float dzdx = (fucode[28]*256) + (fucode[29]) + (fucode[30]/256) + (fucode[31]/65536);
if(ucode[28]&0x80) dzdx -= 65536;
float dzde = (fucode[28]*256) + (fucode[29]) + (fucode[30]/256) + (fucode[31]/65536);
if(ucode[28]&0x80) dzde -= 65536;
float dzdy = (fucode[28]*256) + (fucode[29]) + (fucode[30]/256) + (fucode[31]/65536);
if(ucode[28]&0x80) dzdy -= 65536;
if(flip)
{
glBegin(GL_TRIANGLES);
glVertex3f(xh-(dxhdy*(yl-floor(yh))),yl,0);
glVertex3f(xl+(dxldy*(ceil(ym)-ym)),ym,0);
glVertex3f(xm+(dxmdy*(yh-floor(yh))),yh,0);
glEnd();
}
else
{
glBegin(GL_TRIANGLES);
glVertex3f(xh+(dxhdy*(yl-floor(yh))),yl,0);
glVertex3f(xl-(dxldy*(ceil(ym)-ym)),ym,0);
glVertex3f(xm-(dxmdy*(yh-floor(yh))),yh,0);
glEnd();
}
break;
}
case 0x0A:
{
//TRI_TEX
break;
}
case 0x0B:
{
//TRI_TEX_Z
break;
}
case 0x0C:
{
//TRI_SHADE
break;
}
case 0x0D:
{
//TRI_SHADE_Z
break;
}
case 0x0E:
{
//TRI_TEX_SHADE
break;
}
case 0x0F:
{
//TRI_TEX_SHADE_Z
break;
}
case 0x24:
{
//TEX_RECT
float x1 = (ucode[1]*4) + ((ucode[2]&0xF0)/64);
float y1 = ((ucode[2]&0x0F)*64) + (ucode[3]/4);
char tile = ucode[4]&0x07;
float x2 = (ucode[5]*4) + ((ucode[6]&0xF0)/64);
float y2 = ((ucode[6]&0x0F)*64) + (ucode[7]/4);
float s = (ucode[8]*32) + (ucode[9]/8);
if(ucode[8]&0x80) s *= -1;
float t = (ucode[10]*32) + (ucode[11]/8);
if(ucode[10]&0x80) s *= -1;
float dsdx = (ucode[12]/8) + (ucode[13]/2048);
if(ucode[12]&0x80) dsdx *= -1;
float dtdy = (ucode[14]/8) + (ucode[15]/2048);
if(ucode[14]&0x80) dtdy *= -1;
glBegin(GL_QUADS);
glTexCoord2f(s,t);
glVertex2f(x1,y1);
glTexCoord2f(s,t+(dtdy*(y2-y1)));
glVertex2f(x1,y2);
glTexCoord2f(s+(dsdx*(x2-x1)),t+(dtdy*(y2-y1)));
glVertex2f(x2,y2);
glTexCoord2f(s+(dsdx*(x2-x1)),t);
glVertex2f(x2,y1);
glEnd();
break;
}
case 0x25:
{
//TEX_RECT_FLIP
float x1 = (ucode[1]*4) + ((ucode[2]&0xF0)/64);
float y1 = ((ucode[2]&0x0F)*64) + (ucode[3]/4);
char tile = ucode[4]&0x07;
float x2 = (ucode[5]*4) + ((ucode[6]&0xF0)/64);
float y2 = ((ucode[6]&0x0F)*64) + (ucode[7]/4);
float s = (ucode[8]*32) + (ucode[9]/8);
if(ucode[8]&0x80) s *= -1;
float t = (ucode[10]*32) + (ucode[11]/8);
if(ucode[10]&0x80) s *= -1;
float dsdx = (ucode[12]/8) + (ucode[13]/2048);
if(ucode[12]&0x80) dsdx *= -1;
float dtdy = (ucode[14]/8) + (ucode[15]/2048);
if(ucode[14]&0x80) dtdy *= -1;
glBegin(GL_QUADS);
glTexCoord2f(-s,-t);
glVertex2f(x1,y1);
glTexCoord2f(-s,-t-(dtdy*(y2-y1)));
glVertex2f(x1,y2);
glTexCoord2f(-s-(dsdx*(x2-x1)),-t-(dtdy*(y2-y1)));
glVertex2f(x2,y2);
glTexCoord2f(-s-(dsdx*(x2-x1)),-t);
glVertex2f(x2,y1);
glEnd();
break;
}
case 0x26:
{
//SYNC_LOAD
break;
}
case 0x27:
{
//SYNC_PIPE
break;
}
case 0x28:
{
//SYNC_TILE
break;
}
case 0x29:
{
//SYNC_FULL
break;
}
case 0x2A:
{
//KEY_GB
cg = ucode[4]/255;
sg = ucode[5]/255;
wg = (ucode[1]<<4 + (ucode[2]&0xF0)>>4)/255;
cb = ucode[6]/255;
sb = ucode[7]/255;
wb = ((ucode[2]&0x0F)<<8 + ucode[3])/255;
break;
}
case 0x2B:
{
//KEY_R
cr = ucode[6]/255;
sr = ucode[7]/255;
wr = ((ucode[4]&0x0F)<<8 + ucode[5])/255;
break;
}
case 0x2C:
{
//SET_CONVERT
k0 = (ucode[1]&0x3F)<<3 + (ucode[2]&0xE0)>>5;
k1 = (ucode[2]&0x1F)<<4 + (ucode[3]&0xF0)>>4;
k2 = (ucode[3]&0x0F)<<5 + (ucode[2]&0xF8)>>3;
k3 = (ucode[2]&0x07)<<6 + (ucode[3]&0xFC)>>2;
k4 = (ucode[1]&0x03)<<7 + (ucode[2]&0xFE)>>1;
k5 = (ucode[2]&0x01)<<8 + (ucode[3]&0xFF);
break;
}
case 0x2D:
{
//SET_SCISSOR
float x1 = (ucode[1]*16) + ((ucode[2]&0xF0)/16);
float y1 = ((ucode[2]&0x0F)*256) + ucode[3];
float x2 = (ucode[5]*16) + ((ucode[6]&0xF0)/16);
float y2 = ((ucode[6]&0x0F)*256) + ucode[7];
glOrtho(x1,y2,x2,y1,-128,128);
break;
}
case 0x2E:
{
//SET_PRIM_DEPTH
break;
}
case 0x2F:
{
//SET_OTHER_MODE
break;
}
case 0x30:
{
//LOAD_TLUT
break;
}
case 0x32:
{
//SET_TILE_SIZE
break;
}
case 0x33:
{
//LOAD_BLOCK
break;
}
case 0x34:
{
//LOAD_TILE
break;
}
case 0x35:
{
//SET_TILE
break;
}
case 0x36:
{
//FILL_RECT
glColor4ub(redfr,greenfr,bluefr,alphafr);
short x1 = (ucode[1]*4) + ((ucode[2]&0xF0)/64);
short y1 = ((ucode[2]&0x0F)*64) + (ucode[3]/4);
short x2 = (ucode[5]*4) + ((ucode[6]&0xF0)/64);
short y2 = ((ucode[6]&0x0F)*64) + (ucode[7]/4);
glBegin(GL_QUADS);
glVertex2f(x1,y1);
glVertex2f(x1,y2);
glVertex2f(x2,y2);
glVertex2f(x2,y1);
glEnd();
glColor4ub(255,255,255,255);
break;
}
case 0x37:
{
//SET_FILL_COLOR
redfr = ucode[4];
greenfr = ucode[5];
bluefr = ucode[6];
alphafr = ucode[7];
break;
}
case 0x38:
{
//SET_FOG_COLOR
redfo = ucode[4]/255;
greenfo = ucode[5]/255;
bluefo = ucode[6]/255;
alphafo = ucode[7]/255;
glEnable(GL_FOG);
float fo[4] = {redfo,greenfo,bluefo,alphafo};
glFogfv(GL_FOG_COLOR,fo);
glFogi(GL_FOG_MODE, GL_LINEAR);
glFogi(GL_FOG_START,-128);
glFogi(GL_FOG_END,128);
break;
}
case 0x39:
{
//SET_BLEND_COLOR
redbl = ucode[4]/255;
greenbl = ucode[5]/255;
bluebl = ucode[6]/255;
alphabl = ucode[7]/255;
break;
}
case 0x3A:
{
//SET_PRIM_COLOR
redpr = ucode[4]/255;
greenpr = ucode[5]/255;
bluepr = ucode[6]/255;
alphapr = ucode[7]/255;
break;
}
case 0x3B:
{
//SET_ENV_COLOR
redenv = ucode[4]/255;
greenenv = ucode[5]/255;
blueenv = ucode[6]/255;
alphaenv = ucode[7]/255;
glClearColor(redenv,greenenv,blueenv,alphaenv);
glClear(GL_COLOR_BUFFER_BIT);
break;
}
case 0x3C:
{
//SET_COMBINE
break;
}
case 0x3D:
{
//SET_TEXTURE_IMAGE
char format = (ucode[1]&0xE0)>>5;
char psize = (ucode[1]&0x18)>>3;
short size = (ucode[2]&0x03)<<8 + ucode[3];
long addr = ((ucode[4]&0x03)<<24) + (ucode[5]<<16) + (ucode[6]<<8) + ucode[7];
break;
}
case 0x3E:
{
//SET_MASK_IMAGE
long addr = ((ucode[4]&0x03)<<24) + (ucode[5]<<16) + (ucode[6]<<8) + ucode[7];
break;
}
case 0x3F:
{
//SET_COLOR_IMAGE
char format = (ucode[1]&0xE0)>>5;
char psize = (ucode[1]&0x18)>>3;
short size = (ucode[2]&0x03)<<8 + ucode[3];
long addr = ((ucode[4]&0x03)<<24) + (ucode[5]<<16) + (ucode[6]<<8) + ucode[7];
break;
}
}
}
void display()
{
unsigned char inst[176];
inst[0] = 0x08;
inst[1] = 0x00;
inst[2] = 0x03;
inst[3] = 0x00;
inst[4] = 0x02;
inst[5] = 0x00;
inst[6] = 0x01;
inst[7] = 0x00;
inst[8] = 0x00;
inst[9] = 0x40;
inst[10] = 0x00;
inst[11] = 0x00;
inst[12] = 0x00;
inst[13] = 0x02;
inst[14] = 0x00;
inst[15] = 0x00;
inst[16] = 0x00;
inst[17] = 0x80;
inst[18] = 0x00;
inst[19] = 0x00;
inst[20] = 0x00;
inst[21] = 0x00;
inst[22] = 0x80;
inst[23] = 0x00;
inst[24] = 0x00;
inst[25] = 0x80;
inst[26] = 0x00;
inst[27] = 0x00;
inst[28] = 0xFF;
inst[29] = 0xFF;
inst[30] = 0x00;
inst[31] = 0x00;
execucode(inst);
glFlush();
}
int main(int argc, char ** argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGBA);
glutInitWindowPosition(0,0);
glutInitWindowSize(256,256);
glutCreateWindow("UCODE");
glClearColor(0,0,0,0);
glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0,256,256,0,-128,128);
glutDisplayFunc(display);
glutMainLoop();
return 0;
}On the TRI_Z command, what X and Y coordinate is the z variable based on? I need to know so I can use it, dzdx, dzde, and dzdy to find the Z coordinate for each vertex.
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