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sonarlint vid_svga.c

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This commit is contained in:
Jasmine Iwanek
2023-07-30 19:22:43 -04:00
parent bc7cc2c14a
commit 478aa11172
2 changed files with 163 additions and 133 deletions
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106
src/video/vid_svga.c
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@@ -169,7 +169,7 @@ svga_out(uint16_t addr, uint8_t val, void *priv)
case 0x3c3:
if (xga_enabled) {
svga->xga.on = (val & 0x01) ? 0 : 1;
vga_on = !svga->xga.on;
vga_on = !svga->xga.on;
}
break;
case 0x3c4:
@@ -205,6 +205,9 @@ svga_out(uint16_t addr, uint8_t val, void *priv)
svga->chain4 = val & 8;
svga->fast = (svga->gdcreg[8] == 0xff && !(svga->gdcreg[3] & 0x18) && !svga->gdcreg[1]) && ((svga->chain4 && (svga->packed_chain4 || svga->force_old_addr)) || svga->fb_only) && !(svga->adv_flags & FLAG_ADDR_BY8);
break;
default:
break;
}
break;
case 0x2ea:
@@ -245,6 +248,9 @@ svga_out(uint16_t addr, uint8_t val, void *priv)
svga->dac_pos = 0;
svga->dac_addr = (svga->dac_addr + 1) & 255;
break;
default:
break;
}
break;
case 0x3ce:
@@ -283,18 +289,27 @@ svga_out(uint16_t addr, uint8_t val, void *priv)
mem_mapping_set_addr(&svga->mapping, 0xb8000, 0x08000);
svga->banked_mask = 0x7fff;
break;
default:
break;
}
}
break;
case 7:
svga->colournocare = val;
break;
default:
break;
}
svga->gdcreg[svga->gdcaddr & 15] = val;
svga->fast = (svga->gdcreg[8] == 0xff && !(svga->gdcreg[3] & 0x18) && !svga->gdcreg[1]) && ((svga->chain4 && (svga->packed_chain4 || svga->force_old_addr)) || svga->fb_only);
if (((svga->gdcaddr & 15) == 5 && (val ^ o) & 0x70) || ((svga->gdcaddr & 15) == 6 && (val ^ o) & 1))
svga_recalctimings(svga);
break;
default:
break;
}
}
@@ -362,6 +377,9 @@ svga_in(uint16_t addr, void *priv)
else
ret = svga->vgapal[index].b & 0x3f;
break;
default:
break;
}
if (svga->adv_flags & FLAG_RAMDAC_SHIFT)
ret >>= 2;
@@ -403,6 +421,9 @@ svga_in(uint16_t addr, void *priv)
ret = svga->cgastat;
break;
default:
break;
}
return ret;
@@ -561,8 +582,14 @@ svga_recalctimings(svga_t *svga)
else
svga->render = svga_render_32bpp_highres;
break;
default:
break;
}
break;
default:
break;
}
}
}
@@ -698,15 +725,15 @@ svga_do_render(svga_t *svga)
void
svga_poll(void *priv)
{
svga_t *svga = (svga_t *) priv;
ibm8514_t *dev = &svga->dev8514;
uint32_t x;
uint32_t blink_delay;
int wx;
int wy;
int ret;
int old_ma;
int linecountff = 0;
svga_t *svga = (svga_t *) priv;
ibm8514_t *dev = &svga->dev8514;
uint32_t x;
uint32_t blink_delay;
int wx;
int wy;
int ret;
int old_ma;
int linecountff = 0;
if (!vga_on && ibm8514_enabled && ibm8514_on) {
if (!dev->local) {
@@ -808,14 +835,14 @@ svga_poll(void *priv)
if ((svga->sc == (svga->crtc[11] & 31)) || (svga->sc == svga->rowcount))
svga->con = 0;
if (svga->dispon) {
/*Real IBM 8514/A or compatibility mode doesn't have linedbl, so skip those.*/
/*Real IBM 8514/A or compatibility mode doesn't have linedbl, so skip those.*/
if (dev->local && ibm8514_on) {
svga->linedbl = 0;
svga->linedbl = 0;
svga->linecountff = 0;
linecountff = 1;
linecountff = 1;
}
if (svga->linedbl && !svga->linecountff && !linecountff) {
svga->linecountff = 1;
svga->linecountff = 1;
svga->ma = svga->maback;
} else if (svga->sc == svga->rowcount) {
svga->linecountff = 0;
@@ -920,7 +947,7 @@ svga_poll(void *priv)
svga->oddeven ^= 1;
svga->monitor->mon_changeframecount = svga->interlace ? 3 : 2;
svga->vslines = 0;
svga->vslines = 0;
if ((dev->local && vga_on) || !dev->local) {
if (svga->interlace && svga->oddeven)
@@ -933,7 +960,7 @@ svga_poll(void *priv)
else
svga->ma = svga->maback = svga->ma_latch;
}
svga->ca = ((svga->crtc[0xe] << 8) | svga->crtc[0xf]) + ((svga->crtc[0xb] & 0x60) >> 5) + svga->ca_adj;
svga->ca = ((svga->crtc[0xe] << 8) | svga->crtc[0xf]) + ((svga->crtc[0xb] & 0x60) >> 5) + svga->ca_adj;
svga->ma = (svga->ma << 2);
svga->maback = (svga->maback << 2);
svga->ca = (svga->ca << 2);
@@ -994,9 +1021,9 @@ svga_init(const device_t *info, svga_t *svga, void *priv, int memsize,
{
int e;
svga->priv = priv;
svga->priv = priv;
svga->monitor_index = monitor_index_global;
svga->monitor = &monitors[svga->monitor_index];
svga->monitor = &monitors[svga->monitor_index];
for (int c = 0; c < 256; c++) {
e = c;
@@ -1010,10 +1037,10 @@ svga_init(const device_t *info, svga_t *svga, void *priv, int memsize,
svga->attrregs[0x11] = 0;
svga->overscan_color = 0x000000;
svga->monitor->mon_overscan_x = 16;
svga->monitor->mon_overscan_y = 32;
svga->x_add = 8;
svga->y_add = 16;
svga->monitor->mon_overscan_x = 16;
svga->monitor->mon_overscan_y = 32;
svga->x_add = 8;
svga->y_add = 16;
svga->crtc[0] = 63;
svga->crtc[6] = 255;
@@ -1127,7 +1154,7 @@ svga_write_common(uint32_t addr, uint8_t val, uint8_t linear, void *priv)
svga_t *svga = (svga_t *) priv;
int writemask2 = svga->writemask;
int reset_wm = 0;
int reset_wm = 0;
latch_t vall;
uint8_t wm = svga->writemask;
uint8_t count;
@@ -1156,7 +1183,7 @@ svga_write_common(uint32_t addr, uint8_t val, uint8_t linear, void *priv)
}
} else {
svga->xga.on = 0;
vga_on = !svga->xga.on;
vga_on = !svga->xga.on;
}
}
addr = svga_decode_addr(svga, addr, 1);
@@ -1328,6 +1355,9 @@ svga_write_common(uint32_t addr, uint8_t val, uint8_t linear, void *priv)
}
}
break;
default:
break;
}
if (reset_wm)
@@ -1354,11 +1384,11 @@ svga_read_common(uint32_t addr, uint8_t linear, void *priv)
if (((svga->xga.op_mode & 7) >= 4) && (svga->xga.aperture_cntl >= 1)) {
if (svga->xga.test == 0xa5) { /*Memory size test of XGA*/
svga->xga.on = 1;
vga_on = !svga->xga.on;
vga_on = !svga->xga.on;
return svga->xga.test;
} else if (svga->xga.test == 0x5a) {
svga->xga.on = 1;
vga_on = !svga->xga.on;
vga_on = !svga->xga.on;
return svga->xga.test;
} else if ((addr == 0xa0000) || (addr == 0xa0010)) {
addr += svga->xga.read_bank;
@@ -1366,7 +1396,7 @@ svga_read_common(uint32_t addr, uint8_t linear, void *priv)
}
} else {
svga->xga.on = 0;
vga_on = !svga->xga.on;
vga_on = !svga->xga.on;
}
}
addr = svga_decode_addr(svga, addr, 0);
@@ -1404,7 +1434,7 @@ svga_read_common(uint32_t addr, uint8_t linear, void *priv)
addr &= ~1;
if (linear && ibm8514_on && (svga->adv_flags & FLAG_ATI))
addr &= svga->vram_mask;
else
else
addr <<= 2;
} else {
if (linear && ibm8514_on && (svga->adv_flags & FLAG_ATI)) {
@@ -1586,8 +1616,8 @@ svga_writeb_linear(uint32_t addr, uint8_t val, void *priv)
if (addr >= svga->vram_max)
return;
addr &= svga->vram_mask;
svga->changedvram[addr >> 12] = svga->monitor->mon_changeframecount;
*(uint8_t *) &svga->vram[addr] = val;
svga->changedvram[addr >> 12] = svga->monitor->mon_changeframecount;
*&svga->vram[addr] = val;
}
void
@@ -1713,7 +1743,7 @@ svga_writel_linear(uint32_t addr, uint32_t val, void *priv)
uint8_t
svga_readb_linear(uint32_t addr, void *priv)
{
svga_t *svga = (svga_t *) priv;
const svga_t *svga = (svga_t *) priv;
if (!svga->fast)
return svga_read_linear(addr, priv);
@@ -1722,7 +1752,7 @@ svga_readb_linear(uint32_t addr, void *priv)
if (addr >= svga->vram_max)
return 0xff;
return *(uint8_t *) &svga->vram[addr & svga->vram_mask];
return *&svga->vram[addr & svga->vram_mask];
}
uint16_t
@@ -1744,8 +1774,8 @@ svga_readw_common(uint32_t addr, uint8_t linear, void *priv)
addr &= svga->decode_mask;
if (svga->translate_address) {
uint8_t val1 = 0xff;
uint8_t val2 = 0xff;
uint8_t val1 = 0xff;
uint8_t val2 = 0xff;
uint32_t addr2 = svga->translate_address(addr, priv);
if (addr2 < svga->vram_max)
val1 = svga->vram[addr2 & svga->vram_mask];
@@ -1792,10 +1822,10 @@ svga_readl_common(uint32_t addr, uint8_t linear, void *priv)
addr &= svga->decode_mask;
if (svga->translate_address) {
uint8_t val1 = 0xff;
uint8_t val2 = 0xff;
uint8_t val3 = 0xff;
uint8_t val4 = 0xff;
uint8_t val1 = 0xff;
uint8_t val2 = 0xff;
uint8_t val3 = 0xff;
uint8_t val4 = 0xff;
uint32_t addr2 = svga->translate_address(addr, priv);
if (addr2 < svga->vram_max)
val1 = svga->vram[addr2 & svga->vram_mask];