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3dcam-headers/graphics.c

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migrate to multifiles setup
2021-04-10 14:22:48 +02:00
#include "graphics.h"
#include "math.h"
void transformMesh(CAMERA * camera, MESH * mesh){
MATRIX mat;
// Apply rotation matrix
RotMatrix_gte(mesh->rot, &mat);
// Apply translation matrix
TransMatrix(&mat, mesh->pos);
// Compose matrix with cam
CompMatrix(&camera->mat, &mat, &mat);
// Set default rotation and translation matrices
SetRotMatrix(&mat);
SetTransMatrix(&mat);
//~ }
};
preparing level ovly loading
2021-04-13 16:52:48 +02:00
//TODO : Break this monster in tiny bits ?
migrate to multifiles setup
2021-04-10 14:22:48 +02:00
void drawPoly(MESH * mesh, long * Flag, int atime, int * camMode, char ** nextpri, u_long * ot, char * db, DRAWENV * draw) {
long nclip, t = 0;
// mesh is POLY_GT3 ( triangle )
if (mesh->index[t].code == 4) {
POLY_GT3 * poly;
// len member == # vertices, but here it's # of triangle... So, for each tri * 3 vertices ...
for ( int i = 0; i < (mesh->tmesh->len * 3); i += 3 ) {
// If mesh is not part of precalculated background, draw them, else, discard
if ( !( *mesh->isBG ) || *camMode != 2) {
poly = (POLY_GT3 *)*nextpri;
// If Vertex Anim flag is set, use it
if (*mesh->isAnim){
// If interpolation flag is set, use it
if(mesh->anim->interpolate){
// Ping pong
//~ //if (mesh->anim->cursor > 4096 || mesh->anim->cursor < 0){
//~ // mesh->anim->dir *= -1;
//~ //}
// Fixed point math precision
short precision = 12;
// Find next keyframe
if (mesh->anim->cursor > (1 << precision)) {
// There are still keyframes to interpolate between
if ( mesh->anim->lerpCursor < mesh->anim->nframes - 1 ) {
mesh->anim->lerpCursor ++;
mesh->anim->cursor = 0;
}
// We've reached last frame, go back to first frame
if ( mesh->anim->lerpCursor == mesh->anim->nframes - 1 ) {
mesh->anim->lerpCursor = 0;
mesh->anim->cursor = 0;
}
}
// Let's lerp between keyframes
// TODO : Finish lerped animation implementation
// Vertex 1
mesh->tmesh->v[ mesh->index[ t ].order.vx ].vx = lerpD( mesh->anim->data[mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[t].order.vx].vx << precision , mesh->anim->data[(mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[t].order.vx].vx << precision, mesh->anim->cursor << precision) >> precision;
mesh->tmesh->v[ mesh->index[ t ].order.vx ].vz = lerpD( mesh->anim->data[mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[t].order.vx].vz << precision , mesh->anim->data[(mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[t].order.vx].vz << precision, mesh->anim->cursor << precision) >> precision;
mesh->tmesh->v[ mesh->index[ t ].order.vx ].vy = lerpD( mesh->anim->data[mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[t].order.vx].vy << precision , mesh->anim->data[(mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[t].order.vx].vy << precision, mesh->anim->cursor << precision) >> precision;
// Vertex 2
mesh->tmesh->v[ mesh->index[ t ].order.vz ].vx = lerpD( mesh->anim->data[mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[t].order.vz].vx << precision , mesh->anim->data[(mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[t].order.vz].vx << precision, mesh->anim->cursor << precision) >> precision;
mesh->tmesh->v[ mesh->index[ t ].order.vz ].vz = lerpD( mesh->anim->data[mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[t].order.vz].vz << precision , mesh->anim->data[(mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[t].order.vz].vz << precision, mesh->anim->cursor << precision) >> precision;
mesh->tmesh->v[ mesh->index[ t ].order.vz ].vy = lerpD( mesh->anim->data[mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[t].order.vz].vy << precision , mesh->anim->data[(mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[t].order.vz].vy << precision, mesh->anim->cursor << precision) >> precision;
// Vertex 3
mesh->tmesh->v[ mesh->index[ t ].order.vy ].vx = lerpD( mesh->anim->data[mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[t].order.vy].vx << precision , mesh->anim->data[(mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[t].order.vy].vx << precision, mesh->anim->cursor << precision) >> precision;
mesh->tmesh->v[ mesh->index[ t ].order.vy ].vz = lerpD( mesh->anim->data[mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[t].order.vy].vz << precision , mesh->anim->data[(mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[t].order.vy].vz << precision, mesh->anim->cursor << precision) >> precision;
mesh->tmesh->v[ mesh->index[ t ].order.vy ].vy = lerpD( mesh->anim->data[mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[t].order.vy].vy << precision , mesh->anim->data[(mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[t].order.vy].vy << precision, mesh->anim->cursor << precision) >> precision;
mesh->anim->cursor += 24 * mesh->anim->dir;
// Coord transformation from world space to screen space
nclip = RotAverageNclip3(
&mesh->tmesh->v[ mesh->index[t].order.vx ],
&mesh->tmesh->v[ mesh->index[t].order.vz ],
&mesh->tmesh->v[ mesh->index[t].order.vy ],
( long* ) &poly->x0, ( long* ) &poly->x1, ( long* ) &poly->x2,
mesh->p,
mesh->OTz,
Flag
);
} else {
// No interpolation
// Use the pre-calculated vertices coordinates from the animation data
nclip = RotAverageNclip3(
&mesh->anim->data[ atime % mesh->anim->nframes * mesh->anim->nvert + mesh->index[t].order.vx ],
&mesh->anim->data[ atime % mesh->anim->nframes * mesh->anim->nvert + mesh->index[t].order.vz ],
&mesh->anim->data[ atime % mesh->anim->nframes * mesh->anim->nvert + mesh->index[t].order.vy ],
( long* ) &poly->x0, ( long* ) &poly->x1, ( long* ) &poly->x2,
mesh->p,
mesh->OTz,
Flag
);
}
} else {
// No animation
// Use model's regular vertex coordinates
nclip = RotAverageNclip3(
&mesh->tmesh->v[ mesh->index[t].order.vx ],
&mesh->tmesh->v[ mesh->index[t].order.vz ],
&mesh->tmesh->v[ mesh->index[t].order.vy ],
( long * ) &poly->x0, ( long * ) &poly->x1, ( long * ) &poly->x2,
mesh->p,
mesh->OTz,
Flag
);
}
// Do not draw invisible meshes
if ( nclip > 0 && *mesh->OTz > 0 && (*mesh->p < 4096) ) {
SetPolyGT3( poly );
// If isPrism flag is set, use it
// FIXME : Doesn't work with pre-rendered BGs
if ( *mesh->isPrism ) {
// Transparency effect :
// Use current DRAWENV clip as TPAGE instead of regular textures
( (POLY_GT3 *) poly )->tpage = getTPage( mesh->tim->mode&0x3, 0,
draw->clip.x,
draw->clip.y
);
// Use projected coordinates (results from RotAverage...) as UV coords and clamp them to 0-255,0-224 Why 224 though ?
setUV3(poly, (poly->x0 < 0 ? 0 : poly->x0 > 255 ? 255 : poly->x0),
(poly->y0 < 0 ? 0 : poly->y0 > 240 ? 240 : poly->y0),
(poly->x1 < 0 ? 0 : poly->x1 > 255 ? 255 : poly->x1),
(poly->y1 < 0 ? 0 : poly->y1 > 240 ? 240 : poly->y1),
(poly->x2 < 0 ? 0 : poly->x2 > 255 ? 255 : poly->x2),
(poly->y2 < 0 ? 0 : poly->y2 > 240 ? 240 : poly->y2)
);
} else {
// No transparency effect
// Use regular TPAGE
( (POLY_GT3 *) poly )->tpage = getTPage(mesh->tim->mode&0x3, 0,
mesh->tim->prect->x,
mesh->tim->prect->y
);
setUV3(poly, mesh->tmesh->u[i].vx , mesh->tmesh->u[i].vy + mesh->tim->prect->y,
mesh->tmesh->u[i+2].vx, mesh->tmesh->u[i+2].vy + mesh->tim->prect->y,
mesh->tmesh->u[i+1].vx, mesh->tmesh->u[i+1].vy + mesh->tim->prect->y);
}
// CLUT setup
// If tim mode == 0 | 1 (4bits/8bits image), set CLUT coordinates
if ( (mesh->tim->mode & 0x3 ) < 2){
setClut(poly,
mesh->tim->crect->x,
mesh->tim->crect->y);
}
if (*mesh->isSprite){
SetShadeTex( poly, 1 );
}
// Defaults depth color to neutral grey
CVECTOR outCol = { 128,128,128,0 };
CVECTOR outCol1 = { 128,128,128,0 };
CVECTOR outCol2 = { 128,128,128,0 };
NormalColorDpq(&mesh->tmesh->n[ mesh->index[t].order.vx ], &mesh->tmesh->c[ mesh->index[t].order.vx ], *mesh->p, &outCol);
NormalColorDpq(&mesh->tmesh->n[ mesh->index[t].order.vz ], &mesh->tmesh->c[ mesh->index[t].order.vz ], *mesh->p, &outCol1);
NormalColorDpq(&mesh->tmesh->n[ mesh->index[t].order.vy ], &mesh->tmesh->c[ mesh->index[t].order.vy ], *mesh->p, &outCol2);
// If transparent effect is in use, inhibate shadows
if (*mesh->isPrism){
// Use un-interpolated (i.e: no light, no fog) colors
setRGB0(poly, mesh->tmesh->c[i].r, mesh->tmesh->c[i].g, mesh->tmesh->c[i].b);
setRGB1(poly, mesh->tmesh->c[i+1].r, mesh->tmesh->c[i+1].g, mesh->tmesh->c[i+1].b);
setRGB2(poly, mesh->tmesh->c[i+2].r, mesh->tmesh->c[i+2].g, mesh->tmesh->c[i+2].b);
} else {
setRGB0(poly, outCol.r, outCol.g , outCol.b);
setRGB1(poly, outCol1.r, outCol1.g, outCol1.b);
setRGB2(poly, outCol2.r, outCol2.g, outCol2.b);
}
if ( (*mesh->OTz > 0) /*&& (*mesh->OTz < OTLEN)*/ && (*mesh->p < 4096) ) {
AddPrim(&ot[ *mesh->OTz-2 ], poly);
}
//~ mesh->pos2D.vx = *(&poly->x0);
//~ mesh->pos2D.vy = *(&poly->x0 + 1);
// mesh->pos2D.vy = poly->x0;
// FntPrint("%d %d\n", *(&poly->x0), *(&poly->x0 + 1));
*nextpri += sizeof(POLY_GT3);
}
t+=1;
}
}
}
// If mesh is quad
if (mesh->index[t].code == 8) {
POLY_GT4 * poly4;
for (int i = 0; i < (mesh->tmesh->len * 4); i += 4) {
// if mesh is not part of BG, draw them, else, discard
if ( !(*mesh->isBG) || *camMode != 2 ) {
poly4 = (POLY_GT4 *)*nextpri;
// Vertex Anim
if (*mesh->isAnim){
// with interpolation
if ( mesh->anim->interpolate ){
// ping pong
//~ if (mesh->anim->cursor > 4096 || mesh->anim->cursor < 0){
//~ mesh->anim->dir *= -1;
//~ }
short precision = 12;
if ( mesh->anim->cursor > 1<<precision ) {
if ( mesh->anim->lerpCursor < mesh->anim->nframes - 1 ) {
mesh->anim->lerpCursor ++;
mesh->anim->cursor = 0;
}
if ( mesh->anim->lerpCursor == mesh->anim->nframes - 1 ) {
mesh->anim->lerpCursor = 0;
mesh->anim->cursor = 0;
}
}
// Vertex 1
mesh->tmesh->v[ mesh->index[ t ].order.vx ].vx = lerpD( mesh->anim->data[ mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[ t ].order.vx ].vx << 12 , mesh->anim->data[ (mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[ t ].order.vx ].vx << 12, mesh->anim->cursor << 12) >> 12;
mesh->tmesh->v[ mesh->index[ t ].order.vx ].vz = lerpD( mesh->anim->data[ mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[ t ].order.vx ].vz << 12 , mesh->anim->data[ (mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[ t ].order.vx ].vz << 12, mesh->anim->cursor << 12) >> 12;
mesh->tmesh->v[ mesh->index[ t ].order.vx ].vy = lerpD( mesh->anim->data[ mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[ t ].order.vx ].vy << 12 , mesh->anim->data[ (mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[ t ].order.vx ].vy << 12, mesh->anim->cursor << 12) >> 12;
// Vertex 2
mesh->tmesh->v[ mesh->index[ t ].order.vz ].vx = lerpD( mesh->anim->data[ mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[ t ].order.vz ].vx << 12 , mesh->anim->data[ (mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[ t ].order.vz ].vx << 12, mesh->anim->cursor << 12) >> 12;
mesh->tmesh->v[ mesh->index[ t ].order.vz ].vz = lerpD( mesh->anim->data[ mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[ t ].order.vz ].vz << 12 , mesh->anim->data[ (mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[ t ].order.vz ].vz << 12, mesh->anim->cursor << 12) >> 12;
mesh->tmesh->v[ mesh->index[ t ].order.vz ].vy = lerpD( mesh->anim->data[ mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[ t ].order.vz ].vy << 12 , mesh->anim->data[ (mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[ t ].order.vz ].vy << 12, mesh->anim->cursor << 12) >> 12;
// Vertex 3
mesh->tmesh->v[ mesh->index[ t ].order.vy ].vx = lerpD( mesh->anim->data[ mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[ t ].order.vy ].vx << 12 , mesh->anim->data[ (mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[ t ].order.vy ].vx << 12, mesh->anim->cursor << 12) >> 12;
mesh->tmesh->v[ mesh->index[ t ].order.vy ].vz = lerpD( mesh->anim->data[ mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[ t ].order.vy ].vz << 12 , mesh->anim->data[ (mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[ t ].order.vy ].vz << 12, mesh->anim->cursor << 12) >> 12;
mesh->tmesh->v[ mesh->index[ t ].order.vy ].vy = lerpD( mesh->anim->data[ mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[ t ].order.vy ].vy << 12 , mesh->anim->data[ (mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[ t ].order.vy ].vy << 12, mesh->anim->cursor << 12) >> 12;
// Vertex 4
mesh->tmesh->v[ mesh->index[ t ].order.pad ].vx = lerpD( mesh->anim->data[ mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[ t ].order.pad ].vx << 12 , mesh->anim->data[ (mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[ t ].order.pad ].vx << 12, mesh->anim->cursor << 12) >> 12;
mesh->tmesh->v[ mesh->index[ t ].order.pad ].vz = lerpD( mesh->anim->data[ mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[ t ].order.pad ].vz << 12 , mesh->anim->data[ (mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[ t ].order.pad ].vz << 12, mesh->anim->cursor << 12) >> 12;
mesh->tmesh->v[ mesh->index[ t ].order.pad ].vy = lerpD( mesh->anim->data[ mesh->anim->lerpCursor * mesh->anim->nvert + mesh->index[ t ].order.pad ].vy << 12 , mesh->anim->data[ (mesh->anim->lerpCursor + 1) * mesh->anim->nvert + mesh->index[ t ].order.pad ].vy << 12, mesh->anim->cursor << 12) >> 12;
mesh->anim->cursor += 2 * mesh->anim->dir;
// Coord transformations
nclip = RotAverageNclip4(
&mesh->tmesh->v[ mesh->index[t].order.pad ],
&mesh->tmesh->v[ mesh->index[t].order.vz],
&mesh->tmesh->v[ mesh->index[t].order.vx ],
&mesh->tmesh->v[ mesh->index[t].order.vy ],
( long* )&poly4->x0, ( long* )&poly4->x1, ( long* )&poly4->x2, ( long* )&poly4->x3,
mesh->p,
mesh->OTz,
Flag
);
} else {
// No interpolation, use all vertices coordinates in anim data
nclip = RotAverageNclip4(
&mesh->anim->data[ atime % mesh->anim->nframes * mesh->anim->nvert + mesh->index[t].order.pad ],
&mesh->anim->data[ atime % mesh->anim->nframes * mesh->anim->nvert + mesh->index[t].order.vz ],
&mesh->anim->data[ atime % mesh->anim->nframes * mesh->anim->nvert + mesh->index[t].order.vx ],
&mesh->anim->data[ atime % mesh->anim->nframes * mesh->anim->nvert + mesh->index[t].order.vy ],
( long* )&poly4->x0, ( long* )&poly4->x1, ( long* )&poly4->x2, ( long* )&poly4->x3,
mesh->p,
mesh->OTz,
Flag
);
}
} else {
// No animation
// Use regulare vertex coords
nclip = RotAverageNclip4(
&mesh->tmesh->v[ mesh->index[t].order.pad ],
&mesh->tmesh->v[ mesh->index[t].order.vz],
&mesh->tmesh->v[ mesh->index[t].order.vx ],
&mesh->tmesh->v[ mesh->index[t].order.vy ],
(long*)&poly4->x0, (long*)&poly4->x1, (long*)&poly4->x2, (long*)&poly4->x3,
mesh->p,
mesh->OTz,
Flag
);
}
if (nclip > 0 && *mesh->OTz > 0 && (*mesh->p < 4096)) {
SetPolyGT4(poly4);
// FIXME : Polygon subdiv - is it working ?
//~ OTc = *mesh->OTz >> 4;
//~ FntPrint("OTC:%d", OTc);
//~ if (OTc < 4) {
//~ if (OTc > 1) div4.ndiv = 1; else div4.ndiv = 2;
//~ DivideGT4(
//~ // Vertex coord
//~ &mesh->tmesh->v[ mesh->index[t].order.pad ],
//~ &mesh->tmesh->v[ mesh->index[t].order.vz ],
//~ &mesh->tmesh->v[ mesh->index[t].order.vx ],
//~ &mesh->tmesh->v[ mesh->index[t].order.vy ],
//~ // UV coord
//~ mesh->tmesh->u[i+3],
//~ mesh->tmesh->u[i+2],
//~ mesh->tmesh->u[i+0],
//~ mesh->tmesh->u[i+1],
//~ // Color
//~ mesh->tmesh->c[i],
//~ mesh->tmesh->c[i+1],
//~ mesh->tmesh->c[i+2],
//~ mesh->tmesh->c[i+3],
//~ // Gpu packet
//~ poly4,
//~ &ot[db][*mesh->OTz],
//~ &div4);
//~ // Increment primitive list pointer
//~ *nextpri += ( (sizeof(POLY_GT4) + 3) / 4 ) * (( 1 << ( div4.ndiv )) << ( div4.ndiv ));
//~ triCount = ((1<<(div4.ndiv))<<(div4.ndiv));
//~ } else if (OTc < 48) {
// Transparency effect
if (*mesh->isPrism){
// Use current DRAWENV clip as TPAGE
( (POLY_GT4 *) poly4)->tpage = getTPage(mesh->tim->mode&0x3, 0,
draw->clip.x,
draw->clip.y
);
// Use projected coordinates
setUV4( poly4,
(poly4->x0 < 0? 0 : poly4->x0 > 255? 255 : poly4->x0),
(poly4->y0 < 0? 0 : poly4->y0 > 224? 224 : poly4->y0),
(poly4->x1 < 0? 0 : poly4->x1 > 255? 255 : poly4->x1),
(poly4->y1 < 0? 0 : poly4->y1 > 224? 224 : poly4->y1),
(poly4->x2 < 0? 0 : poly4->x2 > 255? 255 : poly4->x2),
(poly4->y2 < 0? 0 : poly4->y2 > 224? 224 : poly4->y2),
(poly4->x3 < 0? 0 : poly4->x3 > 255? 255 : poly4->x3),
(poly4->y3 < 0? 0 : poly4->y3 > 224? 224 : poly4->y3)
);
} else {
// Use regular TPAGE
( (POLY_GT4 *) poly4)->tpage = getTPage(
mesh->tim->mode&0x3, 0,
mesh->tim->prect->x,
mesh->tim->prect->y
);
// Use model UV coordinates
setUV4( poly4,
mesh->tmesh->u[i+3].vx, mesh->tmesh->u[i+3].vy + mesh->tim->prect->y,
mesh->tmesh->u[i+2].vx, mesh->tmesh->u[i+2].vy + mesh->tim->prect->y,
mesh->tmesh->u[i+0].vx, mesh->tmesh->u[i+0].vy + mesh->tim->prect->y,
mesh->tmesh->u[i+1].vx, mesh->tmesh->u[i+1].vy + mesh->tim->prect->y
);
}
if (*mesh->isSprite){
SetShadeTex( poly4, 1 );
}
// If tim mode == 0 | 1, set CLUT coordinates
if ( (mesh->tim->mode & 0x3) < 2 ) {
setClut(poly4,
mesh->tim->crect->x,
mesh->tim->crect->y
);
}
CVECTOR outCol = {128,128,128,0};
CVECTOR outCol1 = {128,128,128,0};
CVECTOR outCol2 = {128,128,128,0};
CVECTOR outCol3 = {128,128,128,0};
NormalColorDpq(&mesh->tmesh->n[ mesh->index[t].order.pad ] , &mesh->tmesh->c[ mesh->index[t].order.pad ], *mesh->p, &outCol);
NormalColorDpq(&mesh->tmesh->n[ mesh->index[t].order.vz ], &mesh->tmesh->c[ mesh->index[t].order.vz ], *mesh->p, &outCol1);
NormalColorDpq(&mesh->tmesh->n[ mesh->index[t].order.vx ], &mesh->tmesh->c[ mesh->index[t].order.vx ], *mesh->p, &outCol2);
NormalColorDpq(&mesh->tmesh->n[ mesh->index[t].order.vy ], &mesh->tmesh->c[ mesh->index[t].order.vy ], *mesh->p, &outCol3);
if (*mesh->isPrism){
setRGB0(poly4, mesh->tmesh->c[i].r, mesh->tmesh->c[i].g, mesh->tmesh->c[i].b);
setRGB1(poly4, mesh->tmesh->c[i+1].r, mesh->tmesh->c[i+1].g, mesh->tmesh->c[i+1].b);
setRGB2(poly4, mesh->tmesh->c[i+2].r, mesh->tmesh->c[i+2].g, mesh->tmesh->c[i+2].b);
setRGB3(poly4, mesh->tmesh->c[i+3].r, mesh->tmesh->c[i+3].g, mesh->tmesh->c[i+3].b);
} else {
setRGB0(poly4, outCol.r, outCol.g , outCol.b);
setRGB1(poly4, outCol1.r, outCol1.g, outCol1.b);
setRGB2(poly4, outCol2.r, outCol2.g, outCol2.b);
setRGB3(poly4, outCol3.r, outCol3.g, outCol3.b);
}
if ( (*mesh->OTz > 0) /*&& (*mesh->OTz < OTLEN)*/ && (*mesh->p < 4096) ) {
AddPrim( &ot[ *mesh->OTz-3 ], poly4 );
}
*nextpri += sizeof( POLY_GT4 );
}
t += 1;
}
}
}
};
void drawBG(CAMANGLE * camPtr, char ** nextpri, u_long * otdisc, char * db) {
// Draw BG image in two SPRT since max width == 256 px
SPRT * sprt;
DR_TPAGE * tpage;
// Left part
sprt = ( SPRT * ) *nextpri;
setSprt( sprt );
setRGB0( sprt, 128, 128, 128 );
setXY0( sprt, 0, 0 );
setWH( sprt, 256, SCREENYRES );
setUV0( sprt, 0, 0 );
setClut( sprt,
camPtr->BGtim->crect->x,
camPtr->BGtim->crect->y
);
addPrim( otdisc[ OT2LEN - 1 ], sprt );
*nextpri += sizeof( SPRT );
// Change TPAGE
tpage = (DR_TPAGE *) *nextpri;
setDrawTPage(
tpage, 0, 1,
getTPage(
camPtr->BGtim->mode & 0x3, 0,
camPtr->BGtim->prect->x,
camPtr->BGtim->prect->y
)
);
addPrim( otdisc[OT2LEN-1], tpage);
*nextpri += sizeof(DR_TPAGE);
// Right part
sprt = ( SPRT * ) *nextpri;
setSprt( sprt );
setRGB0( sprt, 128, 128, 128 );
setXY0( sprt, SCREENXRES - ( SCREENXRES - 256 ), 0 );
setWH( sprt, SCREENXRES - 256, SCREENYRES );
setUV0( sprt, 0, 0 );
setClut( sprt,
camPtr->BGtim->crect->x,
camPtr->BGtim->crect->y
);
addPrim( otdisc[ OT2LEN-1 ], sprt );
*nextpri += sizeof( SPRT );
tpage = ( DR_TPAGE * ) *nextpri;
// Change TPAGE
setDrawTPage(
tpage, 0, 1,
getTPage(
camPtr->BGtim->mode & 0x3, 0,
// X offset width depends on TIM's mode
camPtr->BGtim->prect->x + ( 64 << ( camPtr->BGtim->mode & 0x3 ) ),
camPtr->BGtim->prect->y
)
);
addPrim( otdisc[ OT2LEN-1 ], tpage );
*nextpri += sizeof( DR_TPAGE );
};
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