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MGA: Implement gamma-correction for <= 16 bpp modes

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This commit is contained in:
Cacodemon345
2023-12-25 15:24:52 +06:00
parent 278661c41c
commit 1bd4bbdfa1
4 changed files with 104 additions and 68 deletions
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136
src/video/vid_svga_render.c
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@@ -1042,13 +1042,13 @@ svga_render_15bpp_lowres(svga_t *svga)
for (x = 0; x <= (svga->hdisp + svga->scrollcache); x += 4) {
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
p[x << 1] = p[(x << 1) + 1] = video_15to32[dat & 0xffff];
p[(x << 1) + 2] = p[(x << 1) + 3] = video_15to32[dat >> 16];
p[x << 1] = p[(x << 1) + 1] = svga->conv_16to32(svga, dat & 0xffff, 15);
p[(x << 1) + 2] = p[(x << 1) + 3] = svga->conv_16to32(svga, dat >> 16, 15);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
p[(x << 1) + 4] = p[(x << 1) + 5] = video_15to32[dat & 0xffff];
p[(x << 1) + 6] = p[(x << 1) + 7] = video_15to32[dat >> 16];
p[(x << 1) + 4] = p[(x << 1) + 5] = svga->conv_16to32(svga, dat & 0xffff, 15);
p[(x << 1) + 6] = p[(x << 1) + 7] = svga->conv_16to32(svga, dat >> 16, 15);
}
svga->ma += x << 1;
svga->ma &= svga->vram_display_mask;
@@ -1067,13 +1067,13 @@ svga_render_15bpp_lowres(svga_t *svga)
for (x = 0; x <= (svga->hdisp + svga->scrollcache); x += 4) {
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
*p++ = video_15to32[dat & 0xffff];
*p++ = video_15to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 15);
*p++ = svga->conv_16to32(svga, dat >> 16, 15);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
*p++ = video_15to32[dat & 0xffff];
*p++ = video_15to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 15);
*p++ = svga->conv_16to32(svga, dat >> 16, 15);
}
svga->ma += x << 1;
} else {
@@ -1081,8 +1081,8 @@ svga_render_15bpp_lowres(svga_t *svga)
addr = svga->remap_func(svga, svga->ma);
dat = *(uint32_t *) (&svga->vram[addr & svga->vram_display_mask]);
*p++ = video_15to32[dat & 0xffff];
*p++ = video_15to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 15);
*p++ = svga->conv_16to32(svga, dat >> 16, 15);
svga->ma += 4;
}
}
@@ -1113,20 +1113,20 @@ svga_render_15bpp_highres(svga_t *svga)
for (x = 0; x <= (svga->hdisp + svga->scrollcache); x += 8) {
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
p[x] = video_15to32[dat & 0xffff];
p[x + 1] = video_15to32[dat >> 16];
p[x] = svga->conv_16to32(svga, dat & 0xffff, 15);
p[x + 1] = svga->conv_16to32(svga, dat >> 16, 15);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
p[x + 2] = video_15to32[dat & 0xffff];
p[x + 3] = video_15to32[dat >> 16];
p[x + 2] = svga->conv_16to32(svga, dat & 0xffff, 15);
p[x + 3] = svga->conv_16to32(svga, dat >> 16, 15);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 8) & svga->vram_display_mask]);
p[x + 4] = video_15to32[dat & 0xffff];
p[x + 5] = video_15to32[dat >> 16];
p[x + 4] = svga->conv_16to32(svga, dat & 0xffff, 15);
p[x + 5] = svga->conv_16to32(svga, dat >> 16, 15);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 12) & svga->vram_display_mask]);
p[x + 6] = video_15to32[dat & 0xffff];
p[x + 7] = video_15to32[dat >> 16];
p[x + 6] = svga->conv_16to32(svga, dat & 0xffff, 15);
p[x + 7] = svga->conv_16to32(svga, dat >> 16, 15);
}
svga->ma += x << 1;
svga->ma &= svga->vram_display_mask;
@@ -1144,20 +1144,20 @@ svga_render_15bpp_highres(svga_t *svga)
if (!svga->remap_required) {
for (x = 0; x <= (svga->hdisp + svga->scrollcache); x += 8) {
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
*p++ = video_15to32[dat & 0xffff];
*p++ = video_15to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 15);
*p++ = svga->conv_16to32(svga, dat >> 16, 15);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
*p++ = video_15to32[dat & 0xffff];
*p++ = video_15to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 15);
*p++ = svga->conv_16to32(svga, dat >> 16, 15);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 8) & svga->vram_display_mask]);
*p++ = video_15to32[dat & 0xffff];
*p++ = video_15to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 15);
*p++ = svga->conv_16to32(svga, dat >> 16, 15);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 12) & svga->vram_display_mask]);
*p++ = video_15to32[dat & 0xffff];
*p++ = video_15to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 15);
*p++ = svga->conv_16to32(svga, dat >> 16, 15);
}
svga->ma += x << 1;
} else {
@@ -1165,8 +1165,8 @@ svga_render_15bpp_highres(svga_t *svga)
addr = svga->remap_func(svga, svga->ma);
dat = *(uint32_t *) (&svga->vram[addr & svga->vram_display_mask]);
*p++ = video_15to32[dat & 0xffff];
*p++ = video_15to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 15);
*p++ = svga->conv_16to32(svga, dat >> 16, 15);
svga->ma += 4;
}
}
@@ -1194,16 +1194,16 @@ svga_render_15bpp_mix_lowres(svga_t *svga)
for (x = 0; x <= (svga->hdisp + svga->scrollcache); x += 4) {
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
p[x << 1] = p[(x << 1) + 1] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : video_15to32[dat & 0xffff];
p[x << 1] = p[(x << 1) + 1] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : svga->conv_16to32(svga, dat & 0xffff, 15);
dat >>= 16;
p[(x << 1) + 2] = p[(x << 1) + 3] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : video_15to32[dat & 0xffff];
p[(x << 1) + 2] = p[(x << 1) + 3] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : svga->conv_16to32(svga, dat & 0xffff, 15);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
p[(x << 1) + 4] = p[(x << 1) + 5] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : video_15to32[dat & 0xffff];
p[(x << 1) + 4] = p[(x << 1) + 5] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : svga->conv_16to32(svga, dat & 0xffff, 15);
dat >>= 16;
p[(x << 1) + 6] = p[(x << 1) + 7] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : video_15to32[dat & 0xffff];
p[(x << 1) + 6] = p[(x << 1) + 7] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : svga->conv_16to32(svga, dat & 0xffff, 15);
}
svga->ma += x << 1;
svga->ma &= svga->vram_display_mask;
@@ -1229,24 +1229,24 @@ svga_render_15bpp_mix_highres(svga_t *svga)
for (x = 0; x <= (svga->hdisp + svga->scrollcache); x += 8) {
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
p[x] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : video_15to32[dat & 0xffff];
p[x] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : svga->conv_16to32(svga, dat & 0xffff, 15);
dat >>= 16;
p[x + 1] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : video_15to32[dat & 0xffff];
p[x + 1] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : svga->conv_16to32(svga, dat & 0xffff, 15);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
p[x + 2] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : video_15to32[dat & 0xffff];
p[x + 2] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : svga->conv_16to32(svga, dat & 0xffff, 15);
dat >>= 16;
p[x + 3] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : video_15to32[dat & 0xffff];
p[x + 3] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : svga->conv_16to32(svga, dat & 0xffff, 15);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 8) & svga->vram_display_mask]);
p[x + 4] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : video_15to32[dat & 0xffff];
p[x + 4] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : svga->conv_16to32(svga, dat & 0xffff, 15);
dat >>= 16;
p[x + 5] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : video_15to32[dat & 0xffff];
p[x + 5] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : svga->conv_16to32(svga, dat & 0xffff, 15);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 12) & svga->vram_display_mask]);
p[x + 6] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : video_15to32[dat & 0xffff];
p[x + 6] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : svga->conv_16to32(svga, dat & 0xffff, 15);
dat >>= 16;
p[x + 7] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : video_15to32[dat & 0xffff];
p[x + 7] = (dat & 0x00008000) ? svga->pallook[dat & 0xff] : svga->conv_16to32(svga, dat & 0xffff, 15);
}
svga->ma += x << 1;
svga->ma &= svga->vram_display_mask;
@@ -1275,12 +1275,12 @@ svga_render_16bpp_lowres(svga_t *svga)
for (x = 0; x <= (svga->hdisp + svga->scrollcache); x += 4) {
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
p[x << 1] = p[(x << 1) + 1] = video_16to32[dat & 0xffff];
p[(x << 1) + 2] = p[(x << 1) + 3] = video_16to32[dat >> 16];
p[x << 1] = p[(x << 1) + 1] = svga->conv_16to32(svga, dat & 0xffff, 16);
p[(x << 1) + 2] = p[(x << 1) + 3] = svga->conv_16to32(svga, dat >> 16, 16);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
p[(x << 1) + 4] = p[(x << 1) + 5] = video_16to32[dat & 0xffff];
p[(x << 1) + 6] = p[(x << 1) + 7] = video_16to32[dat >> 16];
p[(x << 1) + 4] = p[(x << 1) + 5] = svga->conv_16to32(svga, dat & 0xffff, 16);
p[(x << 1) + 6] = p[(x << 1) + 7] = svga->conv_16to32(svga, dat >> 16, 16);
}
svga->ma += x << 1;
svga->ma &= svga->vram_display_mask;
@@ -1299,13 +1299,13 @@ svga_render_16bpp_lowres(svga_t *svga)
for (x = 0; x <= (svga->hdisp + svga->scrollcache); x += 4) {
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
*p++ = video_16to32[dat & 0xffff];
*p++ = video_16to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 16);
*p++ = svga->conv_16to32(svga, dat >> 16, 16);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
*p++ = video_16to32[dat & 0xffff];
*p++ = video_16to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 16);
*p++ = svga->conv_16to32(svga, dat >> 16, 16);
}
svga->ma += x << 1;
} else {
@@ -1313,8 +1313,8 @@ svga_render_16bpp_lowres(svga_t *svga)
addr = svga->remap_func(svga, svga->ma);
dat = *(uint32_t *) (&svga->vram[addr & svga->vram_display_mask]);
*p++ = video_16to32[dat & 0xffff];
*p++ = video_16to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 16);
*p++ = svga->conv_16to32(svga, dat >> 16, 16);
}
svga->ma += 4;
}
@@ -1345,20 +1345,20 @@ svga_render_16bpp_highres(svga_t *svga)
for (x = 0; x <= (svga->hdisp + svga->scrollcache); x += 8) {
uint32_t dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
p[x] = video_16to32[dat & 0xffff];
p[x + 1] = video_16to32[dat >> 16];
p[x] = svga->conv_16to32(svga, dat & 0xffff, 16);
p[x + 1] = svga->conv_16to32(svga, dat >> 16, 16);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
p[x + 2] = video_16to32[dat & 0xffff];
p[x + 3] = video_16to32[dat >> 16];
p[x + 2] = svga->conv_16to32(svga, dat & 0xffff, 16);
p[x + 3] = svga->conv_16to32(svga, dat >> 16, 16);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 8) & svga->vram_display_mask]);
p[x + 4] = video_16to32[dat & 0xffff];
p[x + 5] = video_16to32[dat >> 16];
p[x + 4] = svga->conv_16to32(svga, dat & 0xffff, 16);
p[x + 5] = svga->conv_16to32(svga, dat >> 16, 16);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 12) & svga->vram_display_mask]);
p[x + 6] = video_16to32[dat & 0xffff];
p[x + 7] = video_16to32[dat >> 16];
p[x + 6] = svga->conv_16to32(svga, dat & 0xffff, 16);
p[x + 7] = svga->conv_16to32(svga, dat >> 16, 16);
}
svga->ma += x << 1;
svga->ma &= svga->vram_display_mask;
@@ -1376,20 +1376,20 @@ svga_render_16bpp_highres(svga_t *svga)
if (!svga->remap_required) {
for (x = 0; x <= (svga->hdisp + svga->scrollcache); x += 8) {
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1)) & svga->vram_display_mask]);
*p++ = video_16to32[dat & 0xffff];
*p++ = video_16to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 16);
*p++ = svga->conv_16to32(svga, dat >> 16, 16);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 4) & svga->vram_display_mask]);
*p++ = video_16to32[dat & 0xffff];
*p++ = video_16to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 16);
*p++ = svga->conv_16to32(svga, dat >> 16, 16);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 8) & svga->vram_display_mask]);
*p++ = video_16to32[dat & 0xffff];
*p++ = video_16to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 16);
*p++ = svga->conv_16to32(svga, dat >> 16, 16);
dat = *(uint32_t *) (&svga->vram[(svga->ma + (x << 1) + 12) & svga->vram_display_mask]);
*p++ = video_16to32[dat & 0xffff];
*p++ = video_16to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 16);
*p++ = svga->conv_16to32(svga, dat >> 16, 16);
}
svga->ma += x << 1;
} else {
@@ -1397,8 +1397,8 @@ svga_render_16bpp_highres(svga_t *svga)
addr = svga->remap_func(svga, svga->ma);
dat = *(uint32_t *) (&svga->vram[addr & svga->vram_display_mask]);
*p++ = video_16to32[dat & 0xffff];
*p++ = video_16to32[dat >> 16];
*p++ = svga->conv_16to32(svga, dat & 0xffff, 16);
*p++ = svga->conv_16to32(svga, dat >> 16, 16);
svga->ma += 4;
}