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hires_blit: genericize rgb array prep

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nick black 2024-12-27 01:21:41 -05:00 committed by nick black
parent e4a777f940
commit 22f99c650f
1 changed files with 13 additions and 13 deletions
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26
src/lib/blit.c
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@ -673,28 +673,28 @@ hires_blit(ncplane* nc, int linesize, const void* data, int leny, int lenx,
}
int visx = bargs->begx;
for(x = bargs->u.cell.placex ; visx < (bargs->begx + lenx) && x < dimx ; ++x, visx += 2){
uint32_t rgbas[cellheight * 2];
uint32_t rgbas[cellheight * 2]; // row-major
memset(rgbas, 0, sizeof(rgbas));
// FIXME need to handle this generally based off cellheight
memcpy(&rgbas[0], (dat + (linesize * visy) + (visx * 4)), sizeof(*rgbas));
if(visx < bargs->begx + lenx - 1){
memcpy(&rgbas[1], (dat + (linesize * visy) + ((visx + 1) * 4)), sizeof(*rgbas));
if(visy < bargs->begy + leny - 1){
memcpy(&rgbas[3], (dat + (linesize * (visy + 1)) + ((visx + 1) * 4)), sizeof(*rgbas));
if(visy < bargs->begy + leny - 2){
memcpy(&rgbas[5], (dat + (linesize * (visy + 2)) + ((visx + 1) * 4)), sizeof(*rgbas));
}
// conditional looks at first column, begininng at the second row
for(int yoff = 1 ; yoff < cellheight ; ++yoff){
if(visy < bargs->begy + leny - yoff){
memcpy(&rgbas[yoff * 2], (dat + (linesize * (visy + yoff)) + (visx * 4)), sizeof(*rgbas));
}
}
if(visy < bargs->begy + leny - 1){
memcpy(&rgbas[2], (dat + (linesize * (visy + 1)) + (visx * 4)), sizeof(*rgbas));
if(visy < bargs->begy + leny - 2){
memcpy(&rgbas[4], (dat + (linesize * (visy + 2)) + (visx * 4)), sizeof(*rgbas));
// conditional looks at second column, beginning at second row
if(visx < bargs->begx + lenx - 1){
memcpy(&rgbas[1], (dat + (linesize * visy) + ((visx + 1) * 4)), sizeof(*rgbas));
for(int yoff = 1 ; yoff < cellheight ; ++yoff){
if(visy < bargs->begy + leny - yoff){
memcpy(&rgbas[1 + yoff * 2], (dat + (linesize * (visy + yoff)) + ((visx + 1) * 4)), sizeof(*rgbas));
}
}
}
nccell* c = ncplane_cell_ref_yx(nc, y, x);
c->channels = 0;
c->stylemask = 0;
// FIXME need genericize
const char* egc = sex_trans_check(c, rgbas, blendcolors, bargs->transcolor, nointerpolate);
if(egc == NULL){ // no transparency; run a full solver
egc = sex_solver(rgbas, &c->channels, blendcolors, nointerpolate);