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sonarlint vid_ibm_rgb528_ramdac.c

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This commit is contained in:
Jasmine Iwanek
2023-07-31 17:29:43 -04:00
parent ed20cc741c
commit 73757d11c6
1 changed files with 132 additions and 95 deletions
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227
src/video/vid_ibm_rgb528_ramdac.c
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@@ -27,32 +27,41 @@
#include <86box/vid_svga.h> #include <86box/vid_svga.h>
#include <86box/plat_unused.h> #include <86box/plat_unused.h>
typedef union { typedef union ibm_rgb528_pixel8_t {
uint8_t pixel; uint8_t pixel;
struct { struct {
uint8_t b : 2, g : 3, r : 2; uint8_t b : 2;
uint8_t g : 3;
uint8_t r : 2;
}; };
} ibm_rgb528_pixel8_t; } ibm_rgb528_pixel8_t;
typedef union { typedef union ibm_rgb528_pixel16_t {
uint16_t pixel; uint16_t pixel;
struct { struct {
uint16_t b_ : 5, g_ : 6, r_ : 5; uint16_t b_ : 5;
uint16_t g_ : 6;
uint16_t r_ : 5;
}; };
struct { struct {
uint16_t b : 5, g : 5, r : 5, c : 1; uint16_t b : 5;
uint16_t g : 5;
uint16_t r : 5;
uint16_t c : 1;
}; };
} ibm_rgb528_pixel16_t; } ibm_rgb528_pixel16_t;
typedef union { typedef union ibm_rgb528_pixel32_t {
uint32_t pixel; uint32_t pixel;
struct { struct {
uint8_t b, g, r, a; uint8_t b;
uint8_t g;
uint8_t r;
uint8_t a;
}; };
} ibm_rgb528_pixel32_t; } ibm_rgb528_pixel32_t;
typedef struct typedef struct ibm_rgb528_ramdac_t {
{
PALETTE extpal; PALETTE extpal;
uint32_t extpallook[256]; uint32_t extpallook[256];
uint8_t indexed_data[2048]; uint8_t indexed_data[2048];
@@ -60,33 +69,37 @@ typedef struct
uint8_t cursor64_data[1024]; uint8_t cursor64_data[1024];
uint8_t palettes[3][256]; uint8_t palettes[3][256];
ibm_rgb528_pixel32_t extra_pal[4]; ibm_rgb528_pixel32_t extra_pal[4];
int16_t hwc_y, hwc_x; int16_t hwc_y;
uint16_t index, smlc_part; int16_t hwc_x;
uint16_t index;
uint16_t smlc_part;
uint8_t cmd_r0; uint8_t cmd_r0;
uint8_t cmd_r1; uint8_t cmd_r1;
uint8_t cmd_r2; uint8_t cmd_r2;
uint8_t cmd_r3; uint8_t cmd_r3;
uint8_t cmd_r4; uint8_t cmd_r4;
uint8_t status, indx_cntl; uint8_t status;
uint8_t cursor_array, uint8_t indx_cntl;
cursor_hotspot_x, cursor_hotspot_y; uint8_t cursor_array;
uint8_t cursor_hotspot_x;
uint8_t cursor_hotspot_y;
} ibm_rgb528_ramdac_t; } ibm_rgb528_ramdac_t;
void void
ibm_rgb528_render_4bpp(svga_t *svga) ibm_rgb528_render_4bpp(svga_t *svga)
{ {
uint32_t *p; uint32_t *p;
ibm_rgb528_pixel32_t dat_out; ibm_rgb528_pixel32_t dat_out;
uint8_t dat; uint8_t dat;
uint32_t dat32 = 0x00000000; uint32_t dat32 = 0x00000000;
uint64_t dat64 = 0x0000000000000000ULL; uint64_t dat64 = 0x0000000000000000ULL;
uint64_t dat642 = 0x0000000000000000ULL; uint64_t dat642 = 0x0000000000000000ULL;
ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) svga->ramdac; const ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) svga->ramdac;
uint8_t b8_dcol = (ramdac->indexed_data[0x0c] & 0xc0) >> 6; uint8_t b8_dcol = (ramdac->indexed_data[0x0c] & 0xc0) >> 6;
uint8_t partition = (ramdac->indexed_data[0x07] & 0x0f) << 4; uint8_t partition = (ramdac->indexed_data[0x07] & 0x0f) << 4;
uint8_t swap_word = ramdac->indexed_data[0x72] & 0x10; uint8_t swap_word = ramdac->indexed_data[0x72] & 0x10;
uint8_t swap_nib = ramdac->indexed_data[0x72] & 0x21; uint8_t swap_nib = ramdac->indexed_data[0x72] & 0x21;
uint8_t vram_size = ramdac->indexed_data[0x70] & 0x03; uint8_t vram_size = ramdac->indexed_data[0x70] & 0x03;
if ((svga->displine + svga->y_add) < 0) if ((svga->displine + svga->y_add) < 0)
return; return;
@@ -155,16 +168,16 @@ ibm_rgb528_render_4bpp(svga_t *svga)
void void
ibm_rgb528_render_8bpp(svga_t *svga) ibm_rgb528_render_8bpp(svga_t *svga)
{ {
uint32_t *p; uint32_t *p;
ibm_rgb528_pixel32_t dat_out; ibm_rgb528_pixel32_t dat_out;
uint8_t dat; uint8_t dat;
uint32_t dat32 = 0x00000000; uint32_t dat32 = 0x00000000;
uint64_t dat64 = 0x0000000000000000ULL; uint64_t dat64 = 0x0000000000000000ULL;
uint64_t dat642 = 0x0000000000000000ULL; uint64_t dat642 = 0x0000000000000000ULL;
ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) svga->ramdac; const ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) svga->ramdac;
uint8_t b8_dcol = (ramdac->indexed_data[0x0c] & 0xc0) >> 6; uint8_t b8_dcol = (ramdac->indexed_data[0x0c] & 0xc0) >> 6;
uint8_t swap_word = ramdac->indexed_data[0x72] & 0x10; uint8_t swap_word = ramdac->indexed_data[0x72] & 0x10;
uint8_t vram_size = ramdac->indexed_data[0x70] & 0x03; uint8_t vram_size = ramdac->indexed_data[0x70] & 0x03;
if ((svga->displine + svga->y_add) < 0) if ((svga->displine + svga->y_add) < 0)
return; return;
@@ -224,24 +237,24 @@ ibm_rgb528_render_8bpp(svga_t *svga)
void void
ibm_rgb528_render_15_16bpp(svga_t *svga) ibm_rgb528_render_15_16bpp(svga_t *svga)
{ {
uint32_t *p; uint32_t *p;
ibm_rgb528_pixel16_t *dat_ex; ibm_rgb528_pixel16_t *dat_ex;
ibm_rgb528_pixel32_t dat_out; ibm_rgb528_pixel32_t dat_out;
uint16_t dat; uint16_t dat;
uint32_t dat32 = 0x00000000; uint32_t dat32 = 0x00000000;
uint64_t dat64 = 0x0000000000000000ULL; uint64_t dat64 = 0x0000000000000000ULL;
uint64_t dat642 = 0x0000000000000000ULL; uint64_t dat642 = 0x0000000000000000ULL;
ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) svga->ramdac; const ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) svga->ramdac;
uint8_t b16_dcol = (ramdac->indexed_data[0x0c] & 0xc0) >> 6; uint8_t b16_dcol = (ramdac->indexed_data[0x0c] & 0xc0) >> 6;
uint8_t by16_pol = ramdac->indexed_data[0x0c] & 0x20; uint8_t by16_pol = ramdac->indexed_data[0x0c] & 0x20;
uint8_t b555_565 = ramdac->indexed_data[0x0c] & 0x02; uint8_t b555_565 = ramdac->indexed_data[0x0c] & 0x02;
uint8_t bspr_cnt = ramdac->indexed_data[0x0c] & 0x01; uint8_t bspr_cnt = ramdac->indexed_data[0x0c] & 0x01;
uint8_t partition = (ramdac->indexed_data[0x07] & 0x0e) << 4; uint8_t partition = (ramdac->indexed_data[0x07] & 0x0e) << 4;
uint8_t b6bit_lin = ramdac->indexed_data[0x07] & 0x80; uint8_t b6bit_lin = ramdac->indexed_data[0x07] & 0x80;
uint8_t swaprb = ramdac->indexed_data[0x72] & 0x80; uint8_t swaprb = ramdac->indexed_data[0x72] & 0x80;
uint8_t swap_word = ramdac->indexed_data[0x72] & 0x10; uint8_t swap_word = ramdac->indexed_data[0x72] & 0x10;
uint8_t vram_size = ramdac->indexed_data[0x70] & 0x01; uint8_t vram_size = ramdac->indexed_data[0x70] & 0x01;
uint8_t temp; uint8_t temp;
if ((svga->displine + svga->y_add) < 0) if ((svga->displine + svga->y_add) < 0)
return; return;
@@ -349,18 +362,18 @@ ibm_rgb528_render_15_16bpp(svga_t *svga)
void void
ibm_rgb528_render_24bpp(svga_t *svga) ibm_rgb528_render_24bpp(svga_t *svga)
{ {
uint32_t *p; uint32_t *p;
ibm_rgb528_pixel32_t *dat_ex; ibm_rgb528_pixel32_t *dat_ex;
uint32_t dat; uint32_t dat;
uint64_t dat64[6]; uint64_t dat64[6];
uint8_t *dat8 = (uint8_t *) dat64; uint8_t *dat8 = (uint8_t *) dat64;
ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) svga->ramdac; const ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) svga->ramdac;
uint8_t b24_dcol = ramdac->indexed_data[0x0d] & 0x01; uint8_t b24_dcol = ramdac->indexed_data[0x0d] & 0x01;
uint8_t swaprb = ramdac->indexed_data[0x72] & 0x80; uint8_t swaprb = ramdac->indexed_data[0x72] & 0x80;
uint8_t swap_word = ramdac->indexed_data[0x72] & 0x10; uint8_t swap_word = ramdac->indexed_data[0x72] & 0x10;
uint8_t vram_size = ramdac->indexed_data[0x70] & 0x01; uint8_t vram_size = ramdac->indexed_data[0x70] & 0x01;
uint8_t b6bit_lin = ramdac->indexed_data[0x07] & 0x80; uint8_t b6bit_lin = ramdac->indexed_data[0x07] & 0x80;
uint8_t temp; uint8_t temp;
if ((svga->displine + svga->y_add) < 0) if ((svga->displine + svga->y_add) < 0)
return; return;
@@ -438,19 +451,19 @@ ibm_rgb528_render_24bpp(svga_t *svga)
void void
ibm_rgb528_render_32bpp(svga_t *svga) ibm_rgb528_render_32bpp(svga_t *svga)
{ {
uint32_t *p; uint32_t *p;
ibm_rgb528_pixel32_t *dat_ex; ibm_rgb528_pixel32_t *dat_ex;
uint32_t dat = 0x00000000; uint32_t dat = 0x00000000;
uint64_t dat64 = 0x0000000000000000ULL; uint64_t dat64 = 0x0000000000000000ULL;
uint64_t dat642 = 0x0000000000000000ULL; uint64_t dat642 = 0x0000000000000000ULL;
ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) svga->ramdac; const ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) svga->ramdac;
uint8_t b32_dcol = ramdac->indexed_data[0x0e] & 0x03; uint8_t b32_dcol = ramdac->indexed_data[0x0e] & 0x03;
uint8_t by32_pol = ramdac->indexed_data[0x0e] & 0x04; uint8_t by32_pol = ramdac->indexed_data[0x0e] & 0x04;
uint8_t swaprb = ramdac->indexed_data[0x72] & 0x80; uint8_t swaprb = ramdac->indexed_data[0x72] & 0x80;
uint8_t swap_word = ramdac->indexed_data[0x72] & 0x10; uint8_t swap_word = ramdac->indexed_data[0x72] & 0x10;
uint8_t vram_size = ramdac->indexed_data[0x70] & 0x01; uint8_t vram_size = ramdac->indexed_data[0x70] & 0x01;
uint8_t b6bit_lin = ramdac->indexed_data[0x07] & 0x80; uint8_t b6bit_lin = ramdac->indexed_data[0x07] & 0x80;
uint8_t temp; uint8_t temp;
if ((svga->displine + svga->y_add) < 0) if ((svga->displine + svga->y_add) < 0)
return; return;
@@ -551,9 +564,9 @@ ibm_rgb528_set_bpp(ibm_rgb528_ramdac_t *ramdac, svga_t *svga)
} }
void void
ibm_rgb528_ramdac_out(uint16_t addr, int rs2, uint8_t val, void *p, svga_t *svga) ibm_rgb528_ramdac_out(uint16_t addr, int rs2, uint8_t val, void *priv, svga_t *svga)
{ {
ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) p; ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) priv;
uint16_t index; uint16_t index;
uint8_t rs = (addr & 0x03); uint8_t rs = (addr & 0x03);
uint16_t da_mask = 0x03ff; uint16_t da_mask = 0x03ff;
@@ -612,6 +625,9 @@ ibm_rgb528_ramdac_out(uint16_t addr, int rs2, uint8_t val, void *p, svga_t *svga
case 0xc0: case 0xc0:
ramdac->smlc_part = 0x0400; ramdac->smlc_part = 0x0400;
break; break;
default:
break;
} }
svga->dac_hwcursor.addr = ramdac->smlc_part; svga->dac_hwcursor.addr = ramdac->smlc_part;
svga->dac_hwcursor.cur_xsize = svga->dac_hwcursor.cur_ysize = (val & 0x04) ? 64 : 32; svga->dac_hwcursor.cur_xsize = svga->dac_hwcursor.cur_ysize = (val & 0x04) ? 64 : 32;
@@ -712,15 +728,18 @@ ibm_rgb528_ramdac_out(uint16_t addr, int rs2, uint8_t val, void *p, svga_t *svga
case 0x07: case 0x07:
ramdac->indx_cntl = val & 0x01; ramdac->indx_cntl = val & 0x01;
break; break;
default:
break;
} }
return; return;
} }
uint8_t uint8_t
ibm_rgb528_ramdac_in(uint16_t addr, int rs2, void *p, svga_t *svga) ibm_rgb528_ramdac_in(uint16_t addr, int rs2, void *priv, svga_t *svga)
{ {
ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) p; ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) priv;
uint8_t temp = 0xff; uint8_t temp = 0xff;
uint8_t rs = (addr & 0x03); uint8_t rs = (addr & 0x03);
uint8_t loc_read = (ramdac->indexed_data[0x30] & 0x10); uint8_t loc_read = (ramdac->indexed_data[0x30] & 0x10);
@@ -781,15 +800,18 @@ ibm_rgb528_ramdac_in(uint16_t addr, int rs2, void *p, svga_t *svga)
case 0x07: case 0x07:
temp = ramdac->indx_cntl; temp = ramdac->indx_cntl;
break; break;
default:
break;
} }
return temp; return temp;
} }
void void
ibm_rgb528_recalctimings(void *p, svga_t *svga) ibm_rgb528_recalctimings(void *priv, svga_t *svga)
{ {
ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) p; const ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) priv;
svga->interlace = ramdac->indexed_data[0x071] & 0x20; svga->interlace = ramdac->indexed_data[0x071] & 0x20;
@@ -814,6 +836,9 @@ ibm_rgb528_recalctimings(void *p, svga_t *svga)
case 32: case 32:
svga->render = ibm_rgb528_render_32bpp; svga->render = ibm_rgb528_render_32bpp;
break; break;
default:
break;
} }
} }
} }
@@ -824,16 +849,16 @@ ibm_rgb528_recalctimings(void *p, svga_t *svga)
void void
ibm_rgb528_hwcursor_draw(svga_t *svga, int displine) ibm_rgb528_hwcursor_draw(svga_t *svga, int displine)
{ {
uint8_t dat; uint8_t dat;
uint8_t four_pixels = 0x00; uint8_t four_pixels = 0x00;
int pitch; int pitch;
int x_pos; int x_pos;
int y_pos; int y_pos;
int offset = svga->dac_hwcursor_latch.x - svga->dac_hwcursor_latch.xoff; int offset = svga->dac_hwcursor_latch.x - svga->dac_hwcursor_latch.xoff;
uint32_t *p; uint32_t *p;
ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) svga->ramdac; const ibm_rgb528_ramdac_t *ramdac = (ibm_rgb528_ramdac_t *) svga->ramdac;
uint8_t pix_ordr = ramdac->indexed_data[0x30] & 0x20; uint8_t pix_ordr = ramdac->indexed_data[0x30] & 0x20;
uint8_t cursor_mode = ramdac->indexed_data[0x30] & 0x03; uint8_t cursor_mode = ramdac->indexed_data[0x30] & 0x03;
/* The planes come in one part, and each plane is 2bpp, /* The planes come in one part, and each plane is 2bpp,
so a 32x32 cursor has 8 bytes per line, and a 64x64 so a 32x32 cursor has 8 bytes per line, and a 64x64
@@ -873,6 +898,9 @@ ibm_rgb528_hwcursor_draw(svga_t *svga, int displine)
/* Cursor Color 3 */ /* Cursor Color 3 */
p[x_pos] = ramdac->extra_pal[2].pixel; p[x_pos] = ramdac->extra_pal[2].pixel;
break; break;
default:
break;
} }
break; break;
case 0x02: case 0x02:
@@ -889,6 +917,9 @@ ibm_rgb528_hwcursor_draw(svga_t *svga, int displine)
/* Complement */ /* Complement */
p[x_pos] ^= 0xffffff; p[x_pos] ^= 0xffffff;
break; break;
default:
break;
} }
break; break;
case 0x03: case 0x03:
@@ -901,8 +932,14 @@ ibm_rgb528_hwcursor_draw(svga_t *svga, int displine)
/* Cursor Color 2 */ /* Cursor Color 2 */
p[x_pos] = ramdac->extra_pal[1].pixel; p[x_pos] = ramdac->extra_pal[1].pixel;
break; break;
default:
break;
} }
break; break;
default:
break;
} }
if ((x & 3) == 3) if ((x & 3) == 3)