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7ab42bf375668e367b593d94ed05059bea13a7cd
Main_MiSTer/video.cpp
Martin Donlon 7ab42bf375 Initialize has_gamma in video_init (#675) 
It was being initialize as a side effect of calling setGamma, but setGamma could early out if no gamma cfg was set already.
2022-08-10 19:08:40 +08:00

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <linux/fb.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <linux/vt.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <math.h>
#include "hardware.h"
#include "user_io.h"
#include "spi.h"
#include "cfg.h"
#include "file_io.h"
#include "menu.h"
#include "video.h"
#include "input.h"
#include "shmem.h"
#include "smbus.h"
#include "str_util.h"
#include "profiling.h"
#include "offload.h"
#include "support.h"
#include "lib/imlib2/Imlib2.h"
#include "lib/md5/md5.h"
#define FB_SIZE (1920*1080)
#define FB_ADDR (0x20000000 + (32*1024*1024)) // 512mb + 32mb(Core's fb)
/*
-- [2:0] : 011=8bpp(palette) 100=16bpp 101=24bpp 110=32bpp
-- [3] : 0=16bits 565 1=16bits 1555
-- [4] : 0=RGB 1=BGR (for 16/24/32 modes)
-- [5] : TBD
*/
#define FB_FMT_565 0b00100
#define FB_FMT_1555 0b01100
#define FB_FMT_888 0b00101
#define FB_FMT_8888 0b00110
#define FB_FMT_PAL8 0b00011
#define FB_FMT_RxB 0b10000
#define FB_EN 0x8000
#define FB_DV_LBRD 3
#define FB_DV_RBRD 6
#define FB_DV_UBRD 2
#define FB_DV_BBRD 2
#define VRR_NONE 0x00
#define VRR_FREESYNC 0x01
#define VRR_VESA 0x02
static int use_vrr = 0;
static uint8_t vrr_min_fr = 0;
static uint8_t vrr_max_fr = 0;
static volatile uint32_t *fb_base = 0;
static int fb_enabled = 0;
static int fb_width = 0;
static int fb_height = 0;
static int fb_num = 0;
static int brd_x = 0;
static int brd_y = 0;
static int menu_bg = 0;
static int menu_bgn = 0;
static VideoInfo current_video_info;
static int support_FHD = 0;
struct vrr_cap_t
{
uint8_t active;
uint8_t available;
uint8_t min_fr;
uint8_t max_fr;
char description[128];
};
static vrr_cap_t vrr_modes[3] = {
{0, 0, 0, 0, "None"},
{0, 0, 0, 0, "AMD Freesync"},
{0, 0, 0, 0, "Vesa Forum VRR"},
};
static uint8_t last_vrr_mode = 0xFF;
static float last_vrr_rate = 0.0f;
static uint32_t last_vrr_vfp = 0;
static uint8_t edid[256] = {};
struct vmode_t
{
uint32_t vpar[8];
double Fpix;
uint8_t vic_mode;
uint8_t pr;
};
vmode_t vmodes[] =
{
{ { 1280, 110, 40, 220, 720, 5, 5, 20 }, 74.25, 4, 0 }, //0 1280x720@60
{ { 1024, 24, 136, 160, 768, 3, 6, 29 }, 65, 0, 0 }, //1 1024x768@60
{ { 720, 16, 62, 60, 480, 9, 6, 30 }, 27, 3, 0 }, //2 720x480@60
{ { 720, 12, 64, 68, 576, 5, 5, 39 }, 27, 18, 0 }, //3 720x576@50
{ { 1280, 48, 112, 248, 1024, 1, 3, 38 }, 108, 0, 0 }, //4 1280x1024@60
{ { 800, 40, 128, 88, 600, 1, 4, 23 }, 40, 0, 0 }, //5 800x600@60
{ { 640, 16, 96, 48, 480, 10, 2, 33 }, 25.175, 1, 0 }, //6 640x480@60
{ { 1280, 440, 40, 220, 720, 5, 5, 20 }, 74.25, 19, 0 }, //7 1280x720@50
{ { 1920, 88, 44, 148, 1080, 4, 5, 36 }, 148.5, 16, 0 }, //8 1920x1080@60
{ { 1920, 528, 44, 148, 1080, 4, 5, 36 }, 148.5, 31, 0 }, //9 1920x1080@50
{ { 1366, 70, 143, 213, 768, 3, 3, 24 }, 85.5, 0, 0 }, //10 1366x768@60
{ { 1024, 40, 104, 144, 600, 1, 3, 18 }, 48.96, 0, 0 }, //11 1024x600@60
{ { 1920, 48, 32, 80, 1440, 2, 4, 38 }, 185.203, 0, 0 }, //12 1920x1440@60
{ { 2048, 48, 32, 80, 1536, 2, 4, 38 }, 209.318, 0, 0 }, //13 2048x1536@60
{ { 1280, 24, 16, 40, 1440, 3, 5, 33 }, 120.75, 0, 1 }, //14 2560x1440@60 (pr)
};
#define VMODES_NUM (sizeof(vmodes) / sizeof(vmodes[0]))
vmode_t tvmodes[] =
{
{{ 640, 30, 60, 70, 240, 4, 4, 14 }, 12.587, 0, 0 }, //NTSC 15K
{{ 640, 16, 96, 48, 480, 8, 4, 33 }, 25.175, 0, 0 }, //NTSC 31K
{{ 640, 30, 60, 70, 288, 6, 4, 14 }, 12.587, 0, 0 }, //PAL 15K
{{ 640, 16, 96, 48, 576, 2, 4, 42 }, 25.175, 0, 0 }, //PAL 31K
};
// named aliases for vmode_custom_t items
struct vmode_custom_param_t
{
uint32_t mode;
// [1]
uint32_t hact;
uint32_t hfp;
uint32_t hs;
uint32_t hbp;
// [5]
uint32_t vact;
uint32_t vfp;
uint32_t vs;
uint32_t vbp;
// [9]
uint32_t pll[12];
// [21]
uint32_t hpol;
uint32_t vpol;
uint32_t vic;
uint32_t rb;
uint32_t pr;
// [26]
uint32_t unused[6];
};
struct vmode_custom_t
{
union // anonymous
{
vmode_custom_param_t param;
uint32_t item[32];
};
double Fpix;
};
static_assert(sizeof(vmode_custom_param_t) == sizeof(vmode_custom_t::item));
// Static fwd decl
static void video_fb_config();
static void video_calculate_cvt(int horiz_pixels, int vert_pixels, float refresh_rate, int reduced_blanking, vmode_custom_t *vmode);
static vmode_custom_t v_cur = {}, v_def = {}, v_pal = {}, v_ntsc = {};
static int vmode_def = 0, vmode_pal = 0, vmode_ntsc = 0;
static bool supports_pr()
{
static uint16_t video_version = 0xffff;
if (video_version == 0xffff) video_version = spi_uio_cmd(UIO_SET_VIDEO) & 1;
return video_version != 0;
}
static bool supports_vrr()
{
static uint16_t video_version = 0xffff;
if (video_version == 0xffff) video_version = spi_uio_cmd(UIO_SET_VIDEO) & 2;
return video_version != 0;
}
static uint32_t getPLLdiv(uint32_t div)
{
if (div & 1) return 0x20000 | (((div / 2) + 1) << 8) | (div / 2);
return ((div / 2) << 8) | (div / 2);
}
static int findPLLpar(double Fout, uint32_t *pc, uint32_t *pm, double *pko)
{
uint32_t c = 1;
while ((Fout*c) < 400) c++;
while (1)
{
double fvco = Fout*c;
uint32_t m = (uint32_t)(fvco / 50);
double ko = ((fvco / 50) - m);
fvco = ko + m;
fvco *= 50.f;
if (ko && (ko <= 0.05f || ko >= 0.95f))
{
printf("Fvco=%f, C=%d, M=%d, K=%f ", fvco, c, m, ko);
if (fvco > 1500.f)
{
printf("-> No exact parameters found\n");
return 0;
}
printf("-> K is outside allowed range\n");
c++;
}
else
{
*pc = c;
*pm = m;
*pko = ko;
return 1;
}
}
//will never reach here
return 0;
}
static void setPLL(double Fout, vmode_custom_t *v)
{
PROFILE_FUNCTION();
double Fpix;
double fvco, ko;
uint32_t m, c;
printf("Calculate PLL for %.4f MHz:\n", Fout);
if (!findPLLpar(Fout, &c, &m, &ko))
{
c = 1;
while ((Fout*c) < 400) c++;
fvco = Fout*c;
m = (uint32_t)(fvco / 50);
ko = ((fvco / 50) - m);
//Make sure K is in allowed range.
if (ko <= 0.05f)
{
ko = 0;
}
else if (ko >= 0.95f)
{
m++;
ko = 0;
}
}
uint32_t k = ko ? (uint32_t)(ko * 4294967296) : 1;
fvco = ko + m;
fvco *= 50.f;
Fpix = fvco / c;
printf("Fvco=%f, C=%d, M=%d, K=%f(%u) -> Fpix=%f\n", fvco, c, m, ko, k, Fpix);
v->item[9] = 4;
v->item[10] = getPLLdiv(m);
v->item[11] = 3;
v->item[12] = 0x10000;
v->item[13] = 5;
v->item[14] = getPLLdiv(c);
v->item[15] = 9;
v->item[16] = 2;
v->item[17] = 8;
v->item[18] = 7;
v->item[19] = 7;
v->item[20] = k;
v->Fpix = Fpix;
}
struct ScalerFilter
{
char mode;
char filename[1023];
};
static ScalerFilter scaler_flt[3];
struct FilterPhase
{
short t[4];
};
static constexpr int N_PHASES = 256;
struct VideoFilterDigest
{
VideoFilterDigest() { memset(md5, 0, sizeof(md5)); }
bool operator!=(const VideoFilterDigest& other) { return memcmp(md5, other.md5, sizeof(md5)) != 0; }
bool operator==(const VideoFilterDigest& other) { return memcmp(md5, other.md5, sizeof(md5)) == 0; }
unsigned char md5[16];
};
struct VideoFilter
{
bool is_adaptive;
FilterPhase phases[N_PHASES];
FilterPhase adaptive_phases[N_PHASES];
VideoFilterDigest digest;
};
static VideoFilter scaler_flt_data[3];
static bool scale_phases(FilterPhase out_phases[N_PHASES], FilterPhase *in_phases, int in_count)
{
if (!in_count)
{
return false;
}
int dup = N_PHASES / in_count;
if ((in_count * dup) != N_PHASES)
{
return false;
}
for (int i = 0; i < in_count; i++)
{
for (int j = 0; j < dup; j++)
{
out_phases[(i * dup) + j] = in_phases[i];
}
}
return true;
}
static bool read_video_filter(int type, VideoFilter *out)
{
PROFILE_FUNCTION();
fileTextReader reader = {};
FilterPhase phases[512];
int count = 0;
bool is_adaptive = false;
int scale = 2;
memset(out, 0, sizeof(VideoFilter));
static char filename[1024];
snprintf(filename, sizeof(filename), COEFF_DIR"/%s", scaler_flt[type].filename);
if (FileOpenTextReader(&reader, filename))
{
const char *line;
while ((line = FileReadLine(&reader)))
{
if (count == 0 && !strcasecmp(line, "adaptive"))
{
is_adaptive = true;
continue;
}
if (count == 0 && !strcasecmp(line, "10bit"))
{
scale = 1;
continue;
}
int phase[4];
int n = sscanf(line, "%d,%d,%d,%d", &phase[0], &phase[1], &phase[2], &phase[3]);
if (n == 4)
{
if (count >= (is_adaptive ? N_PHASES * 2 : N_PHASES)) return false; //too many
phases[count].t[0] = phase[0] * scale;
phases[count].t[1] = phase[1] * scale;
phases[count].t[2] = phase[2] * scale;
phases[count].t[3] = phase[3] * scale;
count++;
}
}
}
printf( "Filter \'%s\', phases: %d adaptive: %s\n",
scaler_flt[type].filename,
is_adaptive ? count / 2 : count,
is_adaptive ? "true" : "false" );
bool valid = false;
if (is_adaptive)
{
out->is_adaptive = true;
valid = scale_phases(out->phases, phases, count / 2);
valid = valid && scale_phases(out->adaptive_phases, phases + (count / 2), count / 2);
}
else if (count == 32 && !is_adaptive) // legacy
{
out->is_adaptive = false;
valid = scale_phases(out->phases, phases, 16);
}
else if (!is_adaptive)
{
out->is_adaptive = false;
valid = scale_phases(out->phases, phases, count);
}
if (!valid)
{
// Make a default NN filter in case of error
out->is_adaptive = false;
FilterPhase nn_phases[2] =
{
{ .t = { 0, 256, 0, 0 } },
{ .t = { 0, 0, 256, 0 } }
};
scale_phases(out->phases, nn_phases, 2);
}
MD5Context ctx;
MD5Init(&ctx);
MD5Update(&ctx, (unsigned char *)&out->is_adaptive, sizeof(VideoFilter::is_adaptive));
MD5Update(&ctx, (unsigned char *)out->phases, sizeof(VideoFilter::phases));
MD5Update(&ctx, (unsigned char *)out->adaptive_phases, sizeof(VideoFilter::adaptive_phases));
MD5Final(out->digest.md5, &ctx);
return valid;
}
static void send_phases_legacy(int addr, const FilterPhase phases[N_PHASES])
{
PROFILE_FUNCTION();
for (int idx = 0; idx < N_PHASES; idx += 16)
{
const FilterPhase *p = &phases[idx];
spi_w(((p->t[0] >> 1) & 0x1FF) | ((addr + 0) << 9));
spi_w(((p->t[1] >> 1) & 0x1FF) | ((addr + 1) << 9));
spi_w(((p->t[2] >> 1) & 0x1FF) | ((addr + 2) << 9));
spi_w(((p->t[3] >> 1) & 0x1FF) | ((addr + 3) << 9));
addr += 4;
}
}
static void send_phases(int addr, const FilterPhase phases[N_PHASES], bool full_precision)
{
PROFILE_FUNCTION();
const int skip = full_precision ? 1 : 4;
const int shift = full_precision ? 0 : 1;
addr *= full_precision ? (N_PHASES * 4) : (64 * 4);
for (int idx = 0; idx < N_PHASES; idx += skip)
{
const FilterPhase *p = &phases[idx];
spi_w(addr + 0); spi_w((p->t[0] >> shift) & 0x3FF);
spi_w(addr + 1); spi_w((p->t[1] >> shift) & 0x3FF);
spi_w(addr + 2); spi_w((p->t[2] >> shift) & 0x3FF);
spi_w(addr + 3); spi_w((p->t[3] >> shift) & 0x3FF);
addr += 4;
}
}
static VideoFilterDigest horiz_filter_digest, vert_filter_digest;
static void send_video_filters(const VideoFilter *horiz, const VideoFilter *vert, int ver)
{
PROFILE_FUNCTION();
spi_uio_cmd_cont(UIO_SET_FLTCOEF);
const bool full_precision = (ver & 0x4) != 0;
const bool send_horiz = horiz_filter_digest != horiz->digest;
const bool send_vert = vert_filter_digest != vert->digest;
switch( ver & 0x3 )
{
case 1:
if (send_horiz) send_phases_legacy(0, horiz->phases);
if (send_vert) send_phases_legacy(64, vert->phases);
break;
case 2:
if (send_horiz) send_phases(0, horiz->phases, full_precision);
if (send_vert) send_phases(1, vert->phases, full_precision);
break;
case 3:
if (send_horiz) send_phases(0, horiz->phases, full_precision);
if (send_vert) send_phases(1, vert->phases, full_precision);
if (horiz->is_adaptive && send_horiz)
{
send_phases(2, horiz->adaptive_phases, full_precision);
}
else if (vert->is_adaptive && send_vert)
{
send_phases(3, vert->adaptive_phases, full_precision);
}
break;
default:
break;
}
horiz_filter_digest = horiz->digest;
vert_filter_digest = vert->digest;
DisableIO();
}
static void set_vfilter(int force)
{
PROFILE_FUNCTION();
static int last_flags = 0;
int flt_flags = spi_uio_cmd_cont(UIO_SET_FLTNUM);
if (!flt_flags || (!force && last_flags == flt_flags))
{
DisableIO();
return;
}
last_flags = flt_flags;
printf("video_set_filter: flt_flags=%d\n", flt_flags);
spi8(scaler_flt[0].mode);
DisableIO();
int vert_flt;
if (current_video_info.interlaced) vert_flt = VFILTER_HORZ;
else if ((flt_flags & 0x30) && scaler_flt[VFILTER_SCAN].mode) vert_flt = VFILTER_SCAN;
else if (scaler_flt[VFILTER_VERT].mode) vert_flt = VFILTER_VERT;
else vert_flt = VFILTER_HORZ;
send_video_filters(&scaler_flt_data[VFILTER_HORZ], &scaler_flt_data[vert_flt], flt_flags & 0xF);
}
static void setScaler()
{
PROFILE_FUNCTION();
uint32_t arc[4] = {};
for (int i = 0; i < 2; i++)
{
if (cfg.custom_aspect_ratio[i][0])
{
if (sscanf(cfg.custom_aspect_ratio[i], "%u:%u", &arc[i * 2], &arc[(i * 2) + 1]) != 2 || arc[i * 2] < 1 || arc[i * 2] > 4095 || arc[(i * 2) + 1] < 1 || arc[(i * 2) + 1] > 4095)
{
arc[(i * 2) + 0] = 0;
arc[(i * 2) + 1] = 0;
}
}
}
spi_uio_cmd_cont(UIO_SET_AR_CUST);
for (int i = 0; i < 4; i++) spi_w(arc[i]);
DisableIO();
set_vfilter(1);
}
int video_get_scaler_flt(int type)
{
return scaler_flt[type].mode;
}
char* video_get_scaler_coeff(int type, int only_name)
{
char *path = scaler_flt[type].filename;
if (only_name)
{
char *p = strrchr(path, '/');
if (p) return p + 1;
}
return path;
}
static char scaler_cfg[128] = { 0 };
void video_set_scaler_flt(int type, int n)
{
scaler_flt[type].mode = (char)n;
FileSaveConfig(scaler_cfg, &scaler_flt, sizeof(scaler_flt));
spi_uio_cmd8(UIO_SET_FLTNUM, scaler_flt[0].mode);
set_vfilter(1);
}
void video_set_scaler_coeff(int type, const char *name)
{
strcpy(scaler_flt[type].filename, name);
FileSaveConfig(scaler_cfg, &scaler_flt, sizeof(scaler_flt));
read_video_filter(type, &scaler_flt_data[type]);
setScaler();
user_io_send_buttons(1);
}
static void loadScalerCfg()
{
PROFILE_FUNCTION();
sprintf(scaler_cfg, "%s_scaler.cfg", user_io_get_core_name());
memset(scaler_flt, 0, sizeof(scaler_cfg));
if (!FileLoadConfig(scaler_cfg, &scaler_flt, sizeof(scaler_flt)) || scaler_flt[0].mode > 1)
{
memset(scaler_flt, 0, sizeof(scaler_flt));
}
if (!scaler_flt[VFILTER_HORZ].filename[0] && cfg.vfilter_default[0])
{
strcpy(scaler_flt[VFILTER_HORZ].filename, cfg.vfilter_default);
scaler_flt[VFILTER_HORZ].mode = 1;
}
if (!scaler_flt[VFILTER_VERT].filename[0] && cfg.vfilter_vertical_default[0])
{
strcpy(scaler_flt[VFILTER_VERT].filename, cfg.vfilter_vertical_default);
scaler_flt[VFILTER_VERT].mode = 1;
}
if (!scaler_flt[VFILTER_SCAN].filename[0] && cfg.vfilter_scanlines_default[0])
{
strcpy(scaler_flt[VFILTER_SCAN].filename, cfg.vfilter_scanlines_default);
scaler_flt[VFILTER_SCAN].mode = 1;
}
if (!read_video_filter(VFILTER_HORZ, &scaler_flt_data[VFILTER_HORZ])) memset(&scaler_flt[VFILTER_HORZ], 0, sizeof(scaler_flt[VFILTER_HORZ]));
if (!read_video_filter(VFILTER_VERT, &scaler_flt_data[VFILTER_VERT])) memset(&scaler_flt[VFILTER_VERT], 0, sizeof(scaler_flt[VFILTER_VERT]));
if (!read_video_filter(VFILTER_SCAN, &scaler_flt_data[VFILTER_SCAN])) memset(&scaler_flt[VFILTER_SCAN], 0, sizeof(scaler_flt[VFILTER_SCAN]));
}
static char active_gamma_cfg[1024] = { 0 };
static char gamma_cfg[1024] = { 0 };
static char has_gamma = 0; // set in video_init
static void setGamma()
{
PROFILE_FUNCTION();
if (!memcmp(active_gamma_cfg, gamma_cfg, sizeof(gamma_cfg))) return;
fileTextReader reader = {};
static char filename[1024];
if (!has_gamma) return;
snprintf(filename, sizeof(filename), GAMMA_DIR"/%s", gamma_cfg + 1);
if (FileOpenTextReader(&reader, filename))
{
spi_uio_cmd_cont(UIO_SET_GAMCURV);
const char *line;
int index = 0;
while ((line = FileReadLine(&reader)))
{
int c0, c1, c2;
int n = sscanf(line, "%d,%d,%d", &c0, &c1, &c2);
if (n == 1)
{
c1 = c0;
c2 = c0;
n = 3;
}
if (n == 3)
{
spi_w((index << 8) | (c0 & 0xFF));
spi_w((index << 8) | (c1 & 0xFF));
spi_w((index << 8) | (c2 & 0xFF));
index++;
if (index >= 256) break;
}
}
DisableIO();
spi_uio_cmd8(UIO_SET_GAMMA, gamma_cfg[0]);
}
memcpy(active_gamma_cfg, gamma_cfg, sizeof(gamma_cfg));
}
int video_get_gamma_en()
{
return has_gamma ? gamma_cfg[0] : -1;
}
char* video_get_gamma_curve(int only_name)
{
char *path = gamma_cfg + 1;
if (only_name)
{
char *p = strrchr(path, '/');
if (p) return p + 1;
}
return path;
}
static char gamma_cfg_path[1024] = { 0 };
void video_set_gamma_en(int n)
{
gamma_cfg[0] = (char)n;
FileSaveConfig(gamma_cfg_path, &gamma_cfg, sizeof(gamma_cfg));
setGamma();
}
void video_set_gamma_curve(const char *name)
{
strcpy(gamma_cfg + 1, name);
FileSaveConfig(gamma_cfg_path, &gamma_cfg, sizeof(gamma_cfg));
setGamma();
user_io_send_buttons(1);
}
static void loadGammaCfg()
{
PROFILE_FUNCTION();
sprintf(gamma_cfg_path, "%s_gamma.cfg", user_io_get_core_name());
if (!FileLoadConfig(gamma_cfg_path, &gamma_cfg, sizeof(gamma_cfg) - 1) || gamma_cfg[0]>1)
{
memset(gamma_cfg, 0, sizeof(gamma_cfg));
}
}
static char shadow_mask_cfg[1024] = { 0 };
static bool has_shadow_mask = false;
#define SM_FLAG_2X ( 1 << 1 )
#define SM_FLAG_ROTATED ( 1 << 2 )
#define SM_FLAG_ENABLED ( 1 << 3 )
#define SM_FLAG(v) ( ( 0x0 << 13 ) | (v) )
#define SM_VMAX(v) ( ( 0x1 << 13 ) | (v) )
#define SM_HMAX(v) ( ( 0x2 << 13 ) | (v) )
#define SM_LUT(v) ( ( 0x3 << 13 ) | (v) )
enum
{
SM_MODE_NONE = 0,
SM_MODE_1X,
SM_MODE_2X,
SM_MODE_1X_ROTATED,
SM_MODE_2X_ROTATED,
SM_MODE_COUNT
};
static void setShadowMask()
{
PROFILE_FUNCTION();
static char filename[1024];
has_shadow_mask = 0;
if (!spi_uio_cmd_cont(UIO_SHADOWMASK))
{
DisableIO();
return;
}
has_shadow_mask = 1;
switch (video_get_shadow_mask_mode())
{
default: spi_w(SM_FLAG(0)); break;
case SM_MODE_1X: spi_w(SM_FLAG(SM_FLAG_ENABLED)); break;
case SM_MODE_2X: spi_w(SM_FLAG(SM_FLAG_ENABLED | SM_FLAG_2X)); break;
case SM_MODE_1X_ROTATED: spi_w(SM_FLAG(SM_FLAG_ENABLED | SM_FLAG_ROTATED)); break;
case SM_MODE_2X_ROTATED: spi_w(SM_FLAG(SM_FLAG_ENABLED | SM_FLAG_ROTATED | SM_FLAG_2X)); break;
}
int loaded = 0;
snprintf(filename, sizeof(filename), SMASK_DIR"/%s", shadow_mask_cfg + 1);
fileTextReader reader;
if (FileOpenTextReader(&reader, filename))
{
char *start_pos = reader.pos;
const char *line;
uint32_t res = 0;
while ((line = FileReadLine(&reader)))
{
if (!strncasecmp(line, "resolution=", 11))
{
if (sscanf(line + 11, "%u", &res))
{
if (v_cur.item[5] >= res)
{
start_pos = reader.pos;
}
}
}
}
int w = -1, h = -1;
int y = 0;
int v2 = 0;
reader.pos = start_pos;
while ((line = FileReadLine(&reader)))
{
if (w == -1)
{
if (!strcasecmp(line, "v2"))
{
v2 = 1;
continue;
}
if (!strncasecmp(line, "resolution=", 11))
{
continue;
}
int n = sscanf(line, "%d,%d", &w, &h);
if ((n != 2) || (w <= 0) || (h <= 0) || (w > 16) || (h > 16))
{
break;
}
}
else
{
unsigned int p[16];
int n = sscanf(line, "%X,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x", p + 0, p + 1, p + 2, p + 3, p + 4, p + 5, p + 6, p + 7, p + 8, p + 9, p + 10, p + 11, p + 12, p + 13, p + 14, p + 15);
if (n != w)
{
break;
}
for (int x = 0; x < 16; x++) spi_w(SM_LUT(v2 ? (p[x] & 0x7FF) : (((p[x] & 7) << 8) | 0x2A)));
y += 1;
if (y == h)
{
loaded = 1;
break;
}
}
}
if (y == h)
{
spi_w(SM_HMAX(w - 1));
spi_w(SM_VMAX(h - 1));
}
}
if (!loaded) spi_w(SM_FLAG(0));
DisableIO();
}
int video_get_shadow_mask_mode()
{
return has_shadow_mask ? shadow_mask_cfg[0] : -1;
}
char* video_get_shadow_mask(int only_name)
{
char *path = shadow_mask_cfg + 1;
if (only_name)
{
char *p = strrchr(path, '/');
if (p) return p + 1;
}
return path;
}
static char shadow_mask_cfg_path[1024] = { 0 };
void video_set_shadow_mask_mode(int n)
{
if( n >= SM_MODE_COUNT )
{
n = 0;
}
else if (n < 0)
{
n = SM_MODE_COUNT - 1;
}
shadow_mask_cfg[0] = (char)n;
FileSaveConfig(shadow_mask_cfg_path, &shadow_mask_cfg, sizeof(shadow_mask_cfg));
setShadowMask();
}
void video_set_shadow_mask(const char *name)
{
strcpy(shadow_mask_cfg + 1, name);
FileSaveConfig(shadow_mask_cfg_path, &shadow_mask_cfg, sizeof(shadow_mask_cfg));
setShadowMask();
user_io_send_buttons(1);
}
static void loadShadowMaskCfg()
{
PROFILE_FUNCTION();
sprintf(shadow_mask_cfg_path, "%s_shmask.cfg", user_io_get_core_name());
if (!FileLoadConfig(shadow_mask_cfg_path, &shadow_mask_cfg, sizeof(shadow_mask_cfg) - 1))
{
memset(shadow_mask_cfg, 0, sizeof(shadow_mask_cfg));
if (cfg.shmask_default[0])
{
strcpy(shadow_mask_cfg + 1, cfg.shmask_default);
shadow_mask_cfg[0] = cfg.shmask_mode_default;
}
}
if( shadow_mask_cfg[0] >= SM_MODE_COUNT )
{
shadow_mask_cfg[0] = 0;
}
}
#define IS_NEWLINE(c) (((c) == '\r') || ((c) == '\n'))
#define IS_WHITESPACE(c) (IS_NEWLINE(c) || ((c) == ' ') || ((c) == '\t'))
static char* get_preset_arg(const char *str)
{
static char par[1024];
snprintf(par, sizeof(par), "%s", str);
char *pos = par;
while (*pos && !IS_NEWLINE(*pos)) pos++;
*pos-- = 0;
while (pos >= par)
{
if (!IS_WHITESPACE(*pos)) break;
*pos-- = 0;
}
return par;
}
static void load_flt_pres(const char *str, int type)
{
char *arg = get_preset_arg(str);
if (arg[0])
{
if (!strcasecmp(arg, "same") || !strcasecmp(arg, "off"))
{
video_set_scaler_flt(type, 0);
}
else
{
video_set_scaler_coeff(type, arg);
video_set_scaler_flt(type, 1);
}
}
}
void video_loadPreset(char *name)
{
char *arg;
fileTextReader reader;
if (FileOpenTextReader(&reader, name))
{
const char *line;
while ((line = FileReadLine(&reader)))
{
if (!strncasecmp(line, "hfilter=", 8))
{
load_flt_pres(line + 8, VFILTER_HORZ);
}
else if (!strncasecmp(line, "vfilter=", 8))
{
load_flt_pres(line + 8, VFILTER_VERT);
}
else if (!strncasecmp(line, "sfilter=", 8))
{
load_flt_pres(line + 8, VFILTER_SCAN);
}
else if (!strncasecmp(line, "mask=", 5))
{
arg = get_preset_arg(line + 5);
if (arg[0])
{
if (!strcasecmp(arg, "off") || !strcasecmp(arg, "none")) video_set_shadow_mask_mode(0);
else video_set_shadow_mask(arg);
}
}
else if (!strncasecmp(line, "maskmode=", 9))
{
arg = get_preset_arg(line + 9);
if (arg[0])
{
if (!strcasecmp(arg, "off") || !strcasecmp(arg, "none")) video_set_shadow_mask_mode(0);
else if (!strcasecmp(arg, "1x")) video_set_shadow_mask_mode(SM_MODE_1X);
else if (!strcasecmp(arg, "2x")) video_set_shadow_mask_mode(SM_MODE_2X);
else if (!strcasecmp(arg, "1x rotated")) video_set_shadow_mask_mode(SM_MODE_1X_ROTATED);
else if (!strcasecmp(arg, "2x rotated")) video_set_shadow_mask_mode(SM_MODE_2X_ROTATED);
}
}
else if (!strncasecmp(line, "gamma=", 6))
{
arg = get_preset_arg(line + 6);
if (arg[0])
{
if (!strcasecmp(arg, "off") || !strcasecmp(arg, "none")) video_set_gamma_en(0);
else
{
video_set_gamma_curve(arg);
video_set_gamma_en(1);
}
}
}
}
}
}
static void hdmi_config_set_spd(bool val)
{
int fd = i2c_open(0x39, 0);
if (fd >= 0)
{
uint8_t packet_val = i2c_smbus_read_byte_data(fd, 0x40);
if (val)
packet_val |= 0x40;
else
packet_val &= ~0x40;
int res = i2c_smbus_write_byte_data(fd, 0x40, packet_val);
if (res < 0) printf("i2c: write error (%02X %02X): %d\n", 0x40, packet_val, res);
i2c_close(fd);
}
}
static void hdmi_config_set_spare(bool val)
{
int fd = i2c_open(0x39, 0);
if (fd >= 0)
{
uint8_t packet_val = i2c_smbus_read_byte_data(fd, 0x40);
if (val)
packet_val |= 0x01;
else
packet_val &= ~0x01;
int res = i2c_smbus_write_byte_data(fd, 0x40, packet_val);
if (res < 0) printf("i2c: write error (%02X %02X): %d\n", 0x40, packet_val, res);
i2c_close(fd);
}
}
static void hdmi_config_init()
{
int ypbpr = cfg.ypbpr && cfg.direct_video;
// address, value
uint8_t init_data[] = {
0x98, 03, // ADI required Write.
0xD6, 0b11000000, // [7:6] HPD Control...
// 00 = HPD is from both HPD pin or CDC HPD
// 01 = HPD is from CDC HPD
// 10 = HPD is from HPD pin
// 11 = HPD is always high
0x41, 0x10, // Power Down control
0x9A, 0x70, // ADI required Write.
0x9C, 0x30, // ADI required Write.
0x9D, 0b01100001, // [7:4] must be b0110!.
// [3:2] b00 = Input clock not divided. b01 = Clk divided by 2. b10 = Clk divided by 4. b11 = invalid!
// [1:0] must be b01!
0xA2, 0xA4, // ADI required Write.
0xA3, 0xA4, // ADI required Write.
0xE0, 0xD0, // ADI required Write.
0x35, 0x40,
0x36, 0xD9,
0x37, 0x0A,
0x38, 0x00,
0x39, 0x2D,
0x3A, 0x00,
0x16, 0b00111000, // Output Format 444 [7]=0.
// [6] must be 0!
// Colour Depth for Input Video data [5:4] b11 = 8-bit.
// Input Style [3:2] b10 = Style 1 (ignored when using 444 input).
// DDR Input Edge falling [1]=0 (not using DDR atm).
// Output Colour Space RGB [0]=0.
0x17, 0b01100010, // Aspect ratio 16:9 [1]=1, 4:3 [1]=0, invert sync polarity
0x18, (uint8_t)(ypbpr ? 0x86 : (cfg.hdmi_limited & 1) ? 0x8D : (cfg.hdmi_limited & 2) ? 0x8E : 0x00), // CSC Scaling Factors and Coefficients for RGB Full->Limited.
0x19, (uint8_t)(ypbpr ? 0xDF : (cfg.hdmi_limited & 1) ? 0xBC : 0xFE), // Taken from table in ADV7513 Programming Guide.
0x1A, (uint8_t)(ypbpr ? 0x1A : 0x00), // CSC Channel A.
0x1B, (uint8_t)(ypbpr ? 0x3F : 0x00),
0x1C, (uint8_t)(ypbpr ? 0x1E : 0x00),
0x1D, (uint8_t)(ypbpr ? 0xE2 : 0x00),
0x1E, (uint8_t)(ypbpr ? 0x07 : 0x01),
0x1F, (uint8_t)(ypbpr ? 0xE7 : 0x00),
0x20, (uint8_t)(ypbpr ? 0x04 : 0x00), // CSC Channel B.
0x21, (uint8_t)(ypbpr ? 0x1C : 0x00),
0x22, (uint8_t)(ypbpr ? 0x08 : (cfg.hdmi_limited & 1) ? 0x0D : 0x0E),
0x23, (uint8_t)(ypbpr ? 0x11 : (cfg.hdmi_limited & 1) ? 0xBC : 0xFE),
0x24, (uint8_t)(ypbpr ? 0x01 : 0x00),
0x25, (uint8_t)(ypbpr ? 0x91 : 0x00),
0x26, (uint8_t)(ypbpr ? 0x01 : 0x01),
0x27, 0x00,
0x28, (uint8_t)(ypbpr ? 0x1D : 0x00), // CSC Channel C.
0x29, (uint8_t)(ypbpr ? 0xAE : 0x00),
0x2A, (uint8_t)(ypbpr ? 0x1B : 0x00),
0x2B, (uint8_t)(ypbpr ? 0x73 : 0x00),
0x2C, (uint8_t)(ypbpr ? 0x06 : (cfg.hdmi_limited & 1) ? 0x0D : 0x0E),
0x2D, (uint8_t)(ypbpr ? 0xDF : (cfg.hdmi_limited & 1) ? 0xBC : 0xFE),
0x2E, (uint8_t)(ypbpr ? 0x07 : 0x01),
0x2F, (uint8_t)(ypbpr ? 0xE7 : 0x00),
0x3B, 0x0, // Automatic pixel repetition and VIC detection
0x48, 0b00001000, // [6]=0 Normal bus order!
// [5] DDR Alignment.
// [4:3] b01 Data right justified (for YCbCr 422 input modes).
0x49, 0xA8, // ADI required Write.
0x4A, 0b10000000, //Auto-Calculate SPD checksum
0x4C, 0x00, // ADI required Write.
0x55, (uint8_t)(cfg.hdmi_game_mode ? 0b00010010 : 0b00010000),
// [7] must be 0!. Set RGB444 in AVinfo Frame [6:5], Set active format [4].
// AVI InfoFrame Valid [4].
// Bar Info [3:2] b00 Bars invalid. b01 Bars vertical. b10 Bars horizontal. b11 Bars both.
// Scan Info [1:0] b00 (No data). b01 TV. b10 PC. b11 None.
0x56, 0b00001000, // [5:4] Picture Aspect Ratio
// [3:0] Active Portion Aspect Ratio b1000 = Same as Picture Aspect Ratio
0x57, (uint8_t)((cfg.hdmi_game_mode ? 0x80 : 0x00) // [7] IT Content. 0 - No. 1 - Yes (type set in register 0x59).
// [6:4] Color space (ignored for RGB)
| ((ypbpr || cfg.hdmi_limited) ? 0b0100 : 0b1000)), // [3:2] RGB Quantization range
// [1:0] Non-Uniform Scaled: 00 - None. 01 - Horiz. 10 - Vert. 11 - Both.
0x59, (uint8_t)(((ypbpr || cfg.hdmi_limited) ? 0x00 : 0x40) // [7:6] [YQ1 YQ0] YCC Quantization Range: b00 = Limited Range, b01 = Full Range
| (cfg.hdmi_game_mode ? 0x30 : 0x00)), // [5:4] IT Content Type b11 = Game, b00 = Graphics/None
// [3:0] Pixel Repetition Fields b0000 = No Repetition
0x73, 0x01,
0x94, 0b10000000, // [7]=1 HPD Interrupt ENabled.
0x99, 0x02, // ADI required Write.
0x9B, 0x18, // ADI required Write.
0x9F, 0x00, // ADI required Write.
0xA1, 0b00000000, // [6]=1 Monitor Sense Power Down DISabled.
0xA4, 0x08, // ADI required Write.
0xA5, 0x04, // ADI required Write.
0xA6, 0x00, // ADI required Write.
0xA7, 0x00, // ADI required Write.
0xA8, 0x00, // ADI required Write.
0xA9, 0x00, // ADI required Write.
0xAA, 0x00, // ADI required Write.
0xAB, 0x40, // ADI required Write.
0xAF, (uint8_t)(0b00000100 // [7]=0 HDCP Disabled.
// [6:5] must be b00!
// [4]=0 Current frame is unencrypted
// [3:2] must be b01!
| ((cfg.dvi_mode == 1) ? 0b00 : 0b10)), // [1]=1 HDMI Mode.
// [0] must be b0!
0xB9, 0x00, // ADI required Write.
0xBA, 0b01100000, // [7:5] Input Clock delay...
// b000 = -1.2ns.
// b001 = -0.8ns.
// b010 = -0.4ns.
// b011 = No delay.
// b100 = 0.4ns.
// b101 = 0.8ns.
// b110 = 1.2ns.
// b111 = 1.6ns.
0xBB, 0x00, // ADI required Write.
0xDE, 0x9C, // ADI required Write.
0xE4, 0x60, // ADI required Write.
0xFA, 0x7D, // Nbr of times to search for good phase
// (Audio stuff on Programming Guide, Page 66)...
0x0A, 0b00000000, // [6:4] Audio Select. b000 = I2S.
// [3:2] Audio Mode. (HBR stuff, leave at 00!).
0x0B, 0b00001110, //
0x0C, 0b00000100, // [7] 0 = Use sampling rate from I2S stream. 1 = Use samp rate from I2C Register.
// [6] 0 = Use Channel Status bits from stream. 1 = Use Channel Status bits from I2C register.
// [2] 1 = I2S0 Enable.
// [1:0] I2S Format: 00 = Standard. 01 = Right Justified. 10 = Left Justified. 11 = AES.
0x0D, 0b00010000, // [4:0] I2S Bit (Word) Width for Right-Justified.
0x14, 0b00000010, // [3:0] Audio Word Length. b0010 = 16 bits.
0x15, (uint8_t)((cfg.hdmi_audio_96k ? 0x80 : 0x00) | 0b0100000), // I2S Sampling Rate [7:4]. b0000 = (44.1KHz). b0010 = 48KHz.
// Input ID [3:1] b000 (0) = 24-bit RGB 444 or YCrCb 444 with Separate Syncs.
// Audio Clock Config
0x01, 0x00, //
0x02, (uint8_t)(cfg.hdmi_audio_96k ? 0x30 : 0x18), // Set N Value 12288/6144
0x03, 0x00, //
0x07, 0x01, //
0x08, 0x22, // Set CTS Value 74250
0x09, 0x0A, //
};
int fd = i2c_open(0x39, 0);
if (fd >= 0)
{
for (uint i = 0; i < sizeof(init_data); i += 2)
{
int res = i2c_smbus_write_byte_data(fd, init_data[i], init_data[i + 1]);
if (res < 0) printf("i2c: write error (%02X %02X): %d\n", init_data[i], init_data[i + 1], res);
}
i2c_close(fd);
}
else
{
printf("*** ADV7513 not found on i2c bus! HDMI won't be available!\n");
}
}
static uint8_t last_sync_invert = 0xff;
static uint8_t last_pr_flags = 0xff;
static uint8_t last_vic_mode = 0xff;
static void hdmi_config_set_mode(vmode_custom_t *vm)
{
PROFILE_FUNCTION();
const uint8_t vic_mode = (uint8_t)vm->param.vic;
uint8_t pr_flags;
if (cfg.direct_video && is_menu()) pr_flags = 0; // automatic pixel repetition
else if (vm->param.pr != 0) pr_flags = 0b01001000; // manual pixel repetition with 2x clock
else pr_flags = 0b01000000; // manual pixel repetition
uint8_t sync_invert = 0;
if (vm->param.hpol == 0) sync_invert |= 1 << 5;
if (vm->param.vpol == 0) sync_invert |= 1 << 6;
if (last_sync_invert == sync_invert && last_pr_flags == pr_flags && last_vic_mode == vic_mode) return;
// address, value
uint8_t init_data[] = {
0x17, (uint8_t)(0b00000010 | sync_invert), // Aspect ratio 16:9 [1]=1, 4:3 [1]=0
0x3B, pr_flags,
0x3C, vic_mode, // VIC
};
int fd = i2c_open(0x39, 0);
if (fd >= 0)
{
for (uint i = 0; i < sizeof(init_data); i += 2)
{
int res = i2c_smbus_write_byte_data(fd, init_data[i], init_data[i + 1]);
if (res < 0) printf("i2c: write error (%02X %02X): %d\n", init_data[i], init_data[i + 1], res);
}
i2c_close(fd);
}
else
{
printf("*** ADV7513 not found on i2c bus! HDMI won't be available!\n");
}
last_pr_flags = pr_flags;
last_sync_invert = sync_invert;
last_vic_mode = vic_mode;
}
static void edid_parse_cea_ext(uint8_t *cea)
{
uint8_t *data_block_end = cea + cea[2];
uint8_t *cur_blk_start = cea + 4;
uint8_t *cur_blk_data = cur_blk_start;
while (cur_blk_start != data_block_end)
{
cur_blk_data = cur_blk_start;
uint8_t blk_tag = (*cur_blk_data & 0xe0) >> 5;
uint8_t blk_size = *cur_blk_data & 0x1f;
uint8_t blk_data_size = blk_size; //size of actual data in the block, it might be adjusted if the first byte is extended tag
cur_blk_data++;
//vendor specific block might be the only one?
uint8_t is_vendor_specific = 0;
if (blk_tag == 0x03) is_vendor_specific = 1;
if (blk_tag == 0x07)
{
if (*cur_blk_data == 0x01) is_vendor_specific = 1;
cur_blk_data++; //The extended tag uses the next byte for the type. We may not need it?
blk_data_size--;
}
if (is_vendor_specific && blk_data_size >= 3)
{
int oui = cur_blk_data[0] | cur_blk_data[1] << 8 | cur_blk_data[2] << 16;
cur_blk_data += 3;
blk_data_size -= 3;
if (oui == 0x00001a) //AMD block
{
uint8_t min_fr = cur_blk_data[2];
uint8_t max_fr = cur_blk_data[3];
if (max_fr > 62) max_fr = 62;
if (min_fr && max_fr)
{
vrr_modes[VRR_FREESYNC].available = 1;
vrr_modes[VRR_FREESYNC].min_fr = min_fr;
vrr_modes[VRR_FREESYNC].max_fr = max_fr;
}
}
else if (oui == 0xc45dd8)
{
if (blk_data_size > 5) //VRR lies beyond here
{
uint8_t min_fr = cur_blk_data[5] & 0x3f;
uint8_t max_fr = (cur_blk_data[5] & 0xc0) << 2 | cur_blk_data[6];
if (max_fr > 62) max_fr = 62;
if (min_fr && max_fr)
{
vrr_modes[VRR_VESA].available = 1;
vrr_modes[VRR_VESA].min_fr = min_fr;
vrr_modes[VRR_VESA].max_fr = max_fr;
}
}
}
}
cur_blk_start += blk_size + 1;
}
}
static int find_edid_vrr_capability()
{
uint8_t *cur_ext = NULL;
uint8_t ext_cnt = edid[126];
//Probably only one extension, but just in case...
for (int i = 0; i < ext_cnt; i++)
{
cur_ext = edid + 128 + i * 128; //edid extension blocks are 128 bytes
uint8_t ext_tag = *cur_ext;
if (ext_tag == 0x02) //CEA EDID extension
{
edid_parse_cea_ext(cur_ext);
}
}
for (size_t i = 1; i < sizeof(vrr_modes) / sizeof(vrr_cap_t); i++)
{
if (vrr_modes[i].available) printf("VRR: %s available\n", vrr_modes[i].description);
}
return 0;
}
static int is_edid_valid()
{
static const uint8_t magic[] = { 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00 };
if (sizeof(edid) < sizeof(magic)) return 0;
return !memcmp(edid, magic, sizeof(magic));
}
static int get_active_edid()
{
int fd = i2c_open(0x39, 0);
if (fd < 0)
{
printf("EDID: cannot find main i2c device\n");
return 0;
}
for (int i = 0; i < 10; i++)
{
i2c_smbus_write_byte_data(fd, 0xC9, 0x03);
i2c_smbus_write_byte_data(fd, 0xC9, 0x13);
}
i2c_close(fd);
fd = i2c_open(0x3f, 0);
if (fd < 0)
{
printf("EDID: cannot find i2c device.\n");
return 0;
}
// waiting for valid EDID
for (int k = 0; k < 20; k++)
{
for (uint i = 0; i < sizeof(edid); i++) edid[i] = (uint8_t)i2c_smbus_read_byte_data(fd, i);
if (is_edid_valid()) break;
usleep(100000);
}
i2c_close(fd);
printf("EDID:\n"); hexdump(edid, sizeof(edid), 0);
if (!is_edid_valid())
{
printf("Invalid EDID: incorrect header.\n");
bzero(edid, sizeof(edid));
return 0;
}
return 1;
}
static int get_edid_vmode(vmode_custom_t *v)
{
if (!is_edid_valid())
{
get_active_edid();
}
if (!is_edid_valid()) return 0;
int hact, vact, pixclk_khz, hfp, hsync, hbp, vfp, vsync, vbp, hbl, vbl;
uint8_t *x = edid + 0x36;
pixclk_khz = (x[0] + (x[1] << 8)) * 10;
if (pixclk_khz < 10000)
{
if (!pixclk_khz) printf("Invalid EDID: First two bytes are 0, invalid data.\n");
else printf("Invalid EDID: Pixelclock < 10 MHz, assuming invalid data 0x%02x 0x%02x.\n", x[0], x[1]);
return 0;
}
if (cfg.dvi_mode == 2)
{
cfg.dvi_mode = (edid[0x80] == 2 && edid[0x81] == 3 && (edid[0x83] & 0x40)) ? 0 : 1;
if (cfg.dvi_mode == 1) printf("EDID: using DVI mode.\n");
}
unsigned char flags = x[17];
if (flags & 0x80)
{
printf("EDID: preferred mode is interlaced. Fall back to default video mode.\n");
return 0;
}
hact = (x[2] + ((x[4] & 0xf0) << 4));
hbl = (x[3] + ((x[4] & 0x0f) << 8));
hfp = (x[8] + ((x[11] & 0xc0) << 2));
hsync = (x[9] + ((x[11] & 0x30) << 4));
hbp = hbl - hsync - hfp;
vact = (x[5] + ((x[7] & 0xf0) << 4));
vbl = (x[6] + ((x[7] & 0x0f) << 8));
vfp = ((x[10] >> 4) + ((x[11] & 0x0c) << 2));
vsync = ((x[10] & 0x0f) + ((x[11] & 0x03) << 4));
vbp = vbl - vsync - vfp;
/*
int pos_pol_hsync = 0;
int pos_pol_vsync = 0;
int no_pol_vsync = 0; // digital composite signals have no vsync polarity
switch ((flags & 0x18) >> 3)
{
case 0x02:
if (flags & (1 << 1)) pos_pol_hsync = 1;
no_pol_vsync = 1;
break;
case 0x03:
if (flags & (1 << 1)) pos_pol_hsync = 1;
if (flags & (1 << 2)) pos_pol_vsync = 1;
break;
}
*/
double Fpix = pixclk_khz / 1000.f;
double frame_rate = Fpix * 1000000.f / ((hact + hfp + hbp + hsync)*(vact + vfp + vbp + vsync));
printf("EDID: preferred mode: %dx%d@%.1f, pixel clock: %.3fMHz\n", hact, vact, frame_rate, Fpix);
if (hact >= 1920) support_FHD = 1;
if (hact > 2048)
{
printf("EDID: Preferred resolution is too high (%dx%d).\n", hact, vact);
printf("EDID: Falling back to default video mode.\n");
return 0;
}
memset(v, 0, sizeof(vmode_custom_t));
v->item[1] = hact;
v->item[2] = hfp;
v->item[3] = hsync;
v->item[4] = hbp;
v->item[5] = vact;
v->item[6] = vfp;
v->item[7] = vsync;
v->item[8] = vbp;
v->Fpix = Fpix;
if (Fpix > 210.f)
{
printf("EDID: Preferred mode has too high pixel clock (%.3fMHz).\n", Fpix);
if (hact == 2048 && vact == 1536)
{
int n = 13;
printf("EDID: Using safe vmode %d.\n", n);
for (int i = 0; i < 8; i++) v->item[i + 1] = vmodes[n].vpar[i];
v->param.vic = vmodes[n].vic_mode;
v->Fpix = vmodes[n].Fpix;
}
else
{
int fail = 1;
if (frame_rate > 60.f)
{
Fpix = 60.f * (hact + hfp + hbp + hsync)*(vact + vfp + vbp + vsync) / 1000000.f;
if (Fpix <= 210.f)
{
printf("EDID: Reducing frame rate to 60Hz with new pixel clock %.3fMHz.\n", Fpix);
v->Fpix = Fpix;
fail = 0;
}
}
if (fail)
{
printf("EDID: Falling back to default video mode.\n");
return 0;
}
}
}
v->param.rb = 2;
setPLL(v->Fpix, v);
return 1;
}
static void set_vrr_mode()
{
PROFILE_FUNCTION();
use_vrr = 0;
float vrateh = 100000000;
if (cfg.vrr_mode == 0)
{
if (last_vrr_mode != 0)
{
hdmi_config_set_spd(0);
hdmi_config_set_spare(0);
}
last_vrr_mode = 0;
return;
}
if (current_video_info.vtimeh) vrateh /= current_video_info.vtimeh; else vrateh = 0;
if (cfg.vrr_vesa_framerate) vrateh = cfg.vrr_vesa_framerate;
if ((last_vrr_mode == cfg.vrr_mode) &&
(last_vrr_rate == vrateh) &&
(last_vrr_vfp == v_cur.param.vfp || cfg.vrr_mode != VRR_VESA)) return;
if (!is_edid_valid())
{
get_active_edid();
}
if (!is_edid_valid())
{
printf("Set VRR: No valid edid, cannot set\n");
return;
}
find_edid_vrr_capability();
if (cfg.vrr_mode == 1) //autodetect
{
for (uint8_t i = 1; i < sizeof(vrr_modes) / sizeof(vrr_cap_t); i++)
{
if (vrr_modes[i].available)
{
use_vrr = i;
break;
}
}
}
else if (cfg.vrr_mode == 2)
{ //force AMD Freesync
use_vrr = VRR_FREESYNC;
}
else if (cfg.vrr_mode == 3)
{ //force Vesa Forum VRR
use_vrr = VRR_VESA;
}
else
{
use_vrr = 0;
}
vrr_min_fr = 0;
vrr_max_fr = 0;
if (use_vrr == VRR_VESA && !vrateh) return;
if (use_vrr)
{
vrr_min_fr = cfg.vrr_min_framerate;
vrr_max_fr = cfg.vrr_max_framerate;
if (!vrr_min_fr) vrr_min_fr = vrr_modes[use_vrr].min_fr;
if (!vrr_max_fr) vrr_max_fr = vrr_modes[use_vrr].max_fr;
if (!vrr_min_fr) vrr_min_fr = 47;
if (!vrr_max_fr) vrr_max_fr = 62;
vrr_modes[use_vrr].active = 1;
printf("VRR: Set %s active\n", vrr_modes[use_vrr].description);
if (use_vrr == VRR_VESA)
{
printf("VESA Frame Rate %d Front Porch %d\n", (int)vrateh, v_cur.param.vfp);
}
}
int16_t vrateh_i = (int16_t)vrateh;
//These are only sent in the case that freesync or vesa vrr is enabled
uint8_t freesync_data[] = {
//header
0x00, 0x83,
0x01, 0x01,
0x02, 0x08,
//data
0x04, 0x1A,
0x05, 0x00,
0x06, 0x00,
//0x07
//0x08
0x09, 0x07,
0x0A, vrr_min_fr,
0x0B, vrr_max_fr,
};
uint8_t vesa_data[] = {
0xC0, 0x7F,
0xC1, 0xC0,
0xC2, 0x00,
0xC3, 0x40,
0xC5, 0x01,
0xC6, 0x00,
0xC7, 0x01,
0xC8, 0x00,
0xC9, 0x04,
0xCA, 0x01,
0xCB, (uint8_t)v_cur.param.vfp,
0xCC, (uint8_t)((vrateh_i >> 8) & 0x03),
0xCD, (uint8_t)(vrateh_i & 0xFF),
};
int res = 0;
int fd = i2c_open(0x38, 0);
if (fd >= 0)
{
if (use_vrr == VRR_FREESYNC)
{
hdmi_config_set_spd(1);
res = i2c_smbus_write_byte_data(fd, 0x1F, 0b10000000);
if (res < 0)
{
printf("i2c: Vrr: Couldn't update SPD change register (0x1F, 0x80) %d\n", res);
}
for (uint i = 0; i < sizeof(freesync_data); i += 2)
{
res = i2c_smbus_write_byte_data(fd, freesync_data[i], freesync_data[i + 1]);
if (res < 0) printf("i2c: Vrr register write error (%02X %02x): %d\n", freesync_data[i], freesync_data[i + 1], res);
}
res = i2c_smbus_write_byte_data(fd, 0x1F, 0x00);
if (res < 0) printf("i2c: Vrr: Couldn't update SPD change register (0x1F, 0x00), %d\n", res);
}
else
{
hdmi_config_set_spd(0);
}
if (use_vrr == VRR_VESA)
{
hdmi_config_set_spare(1);
res = i2c_smbus_write_byte_data(fd, 0xDF, 0b10000000);
if (res < 0)
{
printf("i2c: Vrr: Couldn't update Spare Packet change register (0xDF, 0x80) %d\n", res);
}
for (uint i = 0; i < sizeof(vesa_data); i += 2)
{
res = i2c_smbus_write_byte_data(fd, vesa_data[i], vesa_data[i + 1]);
if (res < 0) printf("i2c: Vrr register write error (%02X %02x): %d\n", vesa_data[i], vesa_data[i + 1], res);
}
res = i2c_smbus_write_byte_data(fd, 0xDF, 0x00);
if (res < 0) printf("i2c: Vrr: Couldn't update Spare Packet change register (0xDF, 0x00), %d\n", res);
}
else
{
hdmi_config_set_spare(0);
}
i2c_close(fd);
}
last_vrr_mode = cfg.vrr_mode;
last_vrr_rate = vrateh;
last_vrr_vfp = v_cur.param.vfp;
if (!supports_vrr() || cfg.vsync_adjust) use_vrr = 0;
}
static void video_set_mode(vmode_custom_t *v, double Fpix)
{
PROFILE_FUNCTION();
setGamma();
setScaler();
v_cur = *v;
vmode_custom_t v_fix = v_cur;
if (cfg.direct_video)
{
v_fix.item[2] = FB_DV_RBRD;
v_fix.item[4] = FB_DV_LBRD;
v_fix.item[1] += v_cur.item[2] - v_fix.item[2];
v_fix.item[1] += v_cur.item[4] - v_fix.item[4];
v_fix.item[6] = FB_DV_BBRD;
v_fix.item[8] = FB_DV_UBRD;;
v_fix.item[5] += v_cur.item[6] - v_fix.item[6];
v_fix.item[5] += v_cur.item[8] - v_fix.item[8];
}
else
{
set_vrr_mode();
}
if (Fpix) setPLL(Fpix, &v_cur);
if (use_vrr)
{
printf("Requested variable refresh rate: min=%dHz, max=%dHz\n", vrr_min_fr, vrr_max_fr);
int horz = v_fix.param.hact + v_fix.param.hbp + v_fix.param.hfp + v_fix.param.hs;
#if 0
// variant 1: try to reduce vblank to reach max refresh rate but keep original pixel clock.
// try to adjust VBlank to match max refresh
int vbl_fmax = ((v_cur.Fpix * 1000000.f) / (vrr_max_fr * horz)) - v_fix.param.vact - v_fix.param.vs - 1;
if (vbl_fmax < 2) vbl_fmax = 2;
int vfp = vbl_fmax - v_fix.param.vbp;
v_fix.param.vfp = vfp;
if (vfp < 1)
{
v_fix.param.vfp = 1;
v_fix.param.vbp = vbl_fmax - 1;
}
int vert = v_fix.param.vact + v_fix.param.vbp + v_fix.param.vfp + v_fix.param.vs;
#else
// variant 2: keep original vblank and adjust pixel clock to max refresh rate
int vert = v_fix.param.vact + v_fix.param.vbp + v_fix.param.vfp + v_fix.param.vs;
Fpix = horz * vert * vrr_max_fr;
Fpix /= 1000000.f;
setPLL(Fpix, &v_cur);
#endif
double freq_max = (v_cur.Fpix * 1000000.f) / (horz * vert);
double freq_min = vrr_min_fr;
int vfp_vrr = 0;
if (freq_min && freq_min < freq_max)
{
vfp_vrr = ((v_cur.Fpix * 1000000.f) / (vrr_min_fr * horz)) - vert + 1;
v_fix.param.vfp += vfp_vrr;
if (v_fix.param.vfp > 4095) v_fix.param.vfp = 4095;
}
vert = v_fix.param.vact + v_fix.param.vbp + v_fix.param.vfp + v_fix.param.vs;
freq_min = (v_cur.Fpix * 1000000.f) / (horz * vert);
printf("Using variable refresh rate: min=%2.1fHz, max=%2.1fHz. Additional VFP lines: %d\n", freq_min, freq_max, vfp_vrr);
}
printf("Send HDMI parameters:\n");
spi_uio_cmd_cont(UIO_SET_VIDEO);
printf("video: ");
for (int i = 1; i <= 8; i++)
{
if (i == 1) spi_w((v_cur.param.pr << 15) | ((use_vrr ? 1 : 0) << 14) | v_fix.item[i]);
//hsync polarity
else if (i == 3) spi_w((!!v_cur.param.hpol << 15) | v_fix.item[i]);
//vsync polarity
else if (i == 7) spi_w((!!v_cur.param.vpol << 15) | v_fix.item[i]);
else spi_w(v_fix.item[i]);
printf("%d(%d), ", v_cur.item[i], v_fix.item[i]);
}
printf("%chsync, %cvsync\n", !!v_cur.param.hpol ? '+' : '-', !!v_cur.param.vpol ? '+' : '-');
printf("PLL: ");
for (int i = 9; i < 21; i++)
{
printf("0x%X, ", v_cur.item[i]);
if (i & 1) spi_w(v_cur.item[i] | ((i == 9 && Fpix && cfg.vsync_adjust == 2 && !is_menu()) ? 0x8000 : 0) | 0x4000);
else
{
spi_w(v_cur.item[i]);
spi_w(v_cur.item[i] >> 16);
}
}
printf("Fpix=%f\n", v_cur.Fpix);
DisableIO();
hdmi_config_set_mode(&v_cur);
video_fb_config();
setShadowMask();
}
static int parse_custom_video_mode(char* vcfg, vmode_custom_t *v)
{
char *tokens[32];
uint32_t val[32];
double valf = 0;
char work[1024];
char *next;
memset(v, 0, sizeof(vmode_custom_t));
v->param.rb = 1; // default reduced blanking to true
int token_cnt = str_tokenize(strcpyz(work, vcfg), ",", tokens, 32);
int cnt;
for (cnt = 0; cnt < token_cnt; cnt++)
{
val[cnt] = strtoul(tokens[cnt], &next, 0);
if (*next)
{
break;
}
}
if (cnt == 2)
{
valf = strtod(tokens[cnt], &next);
if (!*next) cnt++;
}
for (int i = cnt; i < token_cnt; i++)
{
const char *flag = tokens[i];
if (!strcasecmp(flag, "+vsync")) v->param.vpol = 1;
else if (!strcasecmp(flag, "-vsync")) v->param.vpol = 0;
else if (!strcasecmp(flag, "+hsync")) v->param.hpol = 1;
else if (!strcasecmp(flag, "-hsync")) v->param.hpol = 0;
else if (!strcasecmp(flag, "cvt")) v->param.rb = 0;
else if (!strcasecmp(flag, "cvtrb")) v->param.rb = 1;
else if (!strcasecmp(flag, "pr")) v->param.pr = 1;
else
{
printf("Error parsing video_mode parameter %d \"%s\": \"%s\"\n", i, flag, vcfg);
return -1;
}
}
if (cnt == 1)
{
v->item[0] = val[0];
printf("Set predefined video_mode to %d\n", v->item[0]);
return v->item[0];
}
else if (cnt == 3)
{
video_calculate_cvt(val[0], val[1], valf ? valf : val[2], v->param.rb, v);
}
else if (cnt >= 21)
{
for (int i = 0; i < cnt; i++)
v->item[i] = val[i];
}
else if (cnt == 9 || cnt == 11)
{
v->item[0] = 1;
for (int i = 0; i < 8; i++)
v->item[i + 1] = val[i];
v->Fpix = val[8] / 1000.0;
if (cnt == 11)
{
v->param.hpol = val[9];
v->param.vpol = val[10];
}
}
else
{
printf("Error parsing video_mode parameter: ""%s""\n", vcfg);
return -1;
}
setPLL(v->Fpix, v);
return -2;
}
static int store_custom_video_mode(char* vcfg, vmode_custom_t *v)
{
int ret = parse_custom_video_mode(vcfg, v);
if (ret == -2) return 1;
uint mode = (ret >= 0) ? ret : (support_FHD) ? 8 : 0;
if (mode >= VMODES_NUM) mode = 0;
if (vmodes[mode].pr == 1 && !supports_pr()) mode = 8;
for (int i = 0; i < 8; i++) v->item[i + 1] = vmodes[mode].vpar[i];
v->param.vic = vmodes[mode].vic_mode;
v->param.pr = vmodes[mode].pr;
v->param.rb = 1;
setPLL(vmodes[mode].Fpix, v);
return ret >= 0;
}
static void fb_init()
{
if (!fb_base)
{
fb_base = (volatile uint32_t*)shmem_map(FB_ADDR, FB_SIZE * 4 * 3);
if (!fb_base)
{
printf("Unable to mmap FB!\n");
}
}
spi_uio_cmd16(UIO_SET_FBUF, 0);
}
static void video_mode_load()
{
if (cfg.direct_video && cfg.vsync_adjust)
{
printf("Disabling vsync_adjust because of enabled direct video.\n");
cfg.vsync_adjust = 0;
}
if (cfg.direct_video)
{
int mode = cfg.menu_pal ? 2 : 0;
if (cfg.forced_scandoubler) mode++;
memset(&v_def, 0, sizeof(v_def));
v_def.item[0] = mode;
for (int i = 0; i < 8; i++) v_def.item[i + 1] = tvmodes[mode].vpar[i];
setPLL(tvmodes[mode].Fpix, &v_def);
vmode_def = 1;
vmode_pal = 0;
vmode_ntsc = 0;
}
else
{
vmode_def = 0;
if (!strlen(cfg.video_conf) && !strlen(cfg.video_conf_pal) && !strlen(cfg.video_conf_ntsc))
{
vmode_def = get_edid_vmode(&v_def);
}
if (!vmode_def)
{
vmode_def = store_custom_video_mode(cfg.video_conf, &v_def);
vmode_pal = store_custom_video_mode(cfg.video_conf_pal, &v_pal);
vmode_ntsc = store_custom_video_mode(cfg.video_conf_ntsc, &v_ntsc);
}
}
}
void video_init()
{
fb_init();
hdmi_config_init();
video_mode_load();
has_gamma = spi_uio_cmd(UIO_SET_GAMMA);
loadGammaCfg();
loadScalerCfg();
loadShadowMaskCfg();
video_set_mode(&v_def, 0);
}
static int api1_5 = 0;
int hasAPI1_5()
{
return api1_5 || is_menu();
}
static bool get_video_info(bool force, VideoInfo *video_info)
{
static uint16_t nres = 0;
bool res_changed = false;
bool fb_changed = false;
spi_uio_cmd_cont(UIO_GET_VRES);
uint16_t res = spi_w(0);
if ((nres != res) || force)
{
res_changed = (nres != res);
nres = res;
video_info->width = spi_w(0) | (spi_w(0) << 16);
video_info->height = spi_w(0) | (spi_w(0) << 16);
video_info->htime = spi_w(0) | (spi_w(0) << 16);
video_info->vtime = spi_w(0) | (spi_w(0) << 16);
video_info->ptime = spi_w(0) | (spi_w(0) << 16);
video_info->vtimeh = spi_w(0) | (spi_w(0) << 16);
video_info->interlaced = ( res & 0x100 ) != 0;
video_info->rotated = ( res & 0x200 ) != 0;
}
else
{
*video_info = current_video_info;
}
DisableIO();
static uint8_t fb_crc = 0;
uint8_t crc = spi_uio_cmd_cont(UIO_GET_FB_PAR);
if (fb_crc != crc || force || res_changed)
{
fb_changed |= (fb_crc != crc);
fb_crc = crc;
video_info->arx = spi_w(0);
video_info->arxy = !!(video_info->arx & 0x1000);
video_info->arx &= 0xFFF;
video_info->ary = spi_w(0) & 0xFFF;
video_info->fb_fmt = spi_w(0);
video_info->fb_width = spi_w(0);
video_info->fb_height = spi_w(0);
video_info->fb_en = !!(video_info->fb_fmt & 0x40);
}
DisableIO();
return res_changed || fb_changed;
}
static void video_core_description(const VideoInfo *vi, const vmode_custom_t */*vm*/, char *str, size_t len)
{
float vrate = 100000000;
if (vi->vtime) vrate /= vi->vtime; else vrate = 0;
float hrate = 100000;
if (vi->htime) hrate /= vi->htime; else hrate = 0;
float prate = vi->width * 100;
prate /= vi->ptime;
char res[16];
snprintf(res, 16, "%dx%d%s", vi->fb_en ? vi->fb_width : vi->width, vi->fb_en ? vi->fb_height : vi->height, vi->interlaced ? "i" : "");
snprintf(str, len, "%9s %6.2fKHz %5.1fHz", res, hrate, vrate);
}
static void video_scaler_description(const VideoInfo *vi, const vmode_custom_t *vm, char *str, size_t len)
{
char res[16];
float vrateh = 100000000;
if (vi->vtimeh) vrateh /= vi->vtimeh; else vrateh = 0;
snprintf(res, 16, "%dx%d", vm->item[1] * (vm->param.pr ? 2 : 1), vm->item[5]);
snprintf(str, len, "%9s %6.2fMHz %5.1fHz", res, vm->Fpix, vrateh);
}
void video_core_description(char *str, size_t len)
{
video_core_description(&current_video_info, &v_cur, str, len);
}
void video_scaler_description(char *str, size_t len)
{
video_scaler_description(&current_video_info, &v_cur, str, len);
}
char* video_get_core_mode_name(int with_vrefresh)
{
static char tmp[256] = {};
if (with_vrefresh)
{
float vrate = 100000000;
if (current_video_info.vtime) vrate /= current_video_info.vtime; else vrate = 0;
snprintf(tmp, sizeof(tmp), "%dx%d@%.1f", current_video_info.width, current_video_info.height, vrate);
}
else
{
snprintf(tmp, sizeof(tmp), "%dx%d", current_video_info.width, current_video_info.height);
}
return tmp;
}
static void show_video_info(const VideoInfo *vi, const vmode_custom_t *vm)
{
float vrate = 100000000;
if (vi->vtime) vrate /= vi->vtime; else vrate = 0;
float hrate = 100000;
if (vi->htime) hrate /= vi->htime; else hrate = 0;
float prate = vi->width * 100;
prate /= vi->ptime;
printf("\033[1;33mINFO: Video resolution: %u x %u%s, fHorz = %.1fKHz, fVert = %.1fHz, fPix = %.2fMHz\033[0m\n",
vi->width, vi->height, vi->interlaced ? "i" : "", hrate, vrate, prate);
printf("\033[1;33mINFO: Frame time (100MHz counter): VGA = %d, HDMI = %d\033[0m\n", vi->vtime, vi->vtimeh);
printf("\033[1;33mINFO: AR = %d:%d, fb_en = %d, fb_width = %d, fb_height = %d\033[0m\n", vi->arx, vi->ary, vi->fb_en, vi->fb_width, vi->fb_height);
if (vi->vtimeh) api1_5 = 1;
if (hasAPI1_5() && cfg.video_info)
{
char str[128], res1[64], res2[64];
video_core_description(vi, vm, res1, 64);
video_scaler_description(vi, vm, res2, 64);
snprintf(str, 128, "%s\n" \
"\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\x81\n" \
"%s", res1, res2);
Info(str, cfg.video_info * 1000);
}
}
static void video_resolution_adjust(const VideoInfo *vi, vmode_custom_t *vm)
{
if (cfg.vscale_mode < 4) return;
int w = vm->param.pr ? vm->param.hact * 2 : vm->param.hact;
int h = vm->param.vact;
const uint32_t core_height = vi->fb_en ? vi->fb_height : vi->rotated ? vi->width : vi->height;
const uint32_t core_width = vi->fb_en ? vi->fb_width : vi->rotated ? vi->height : vi->width;
if (w == 0 || h == 0 || core_height == 0 || core_width == 0)
{
printf("video_resolution_adjust: invalid core or display sizes. Not adjusting resolution.\n");
return;
}
int scale_h = h / core_height;
if (!scale_h)
{
printf("video_resolution_adjust: display height less than core height. Not adjusting resolution.\n");
return;
}
int ary = vi->ary;
int arx = vi->arx;
if (!ary || !arx)
{
ary = h;
arx = w;
}
int scale_w = (w * ary) / (core_height * arx);
if (!scale_w)
{
printf("video_resolution_adjust: display width less than core width. Not adjusting resolution.\n");
return;
}
int scale = scale_h > scale_w ? scale_w : scale_h;
int disp_h = core_height * scale;
int core_ar_width = (disp_h * arx) / ary;
int disp_ar_width = (disp_h * w) / h;
int disp_w;
if (cfg.vscale_mode == 5)
{
if (disp_ar_width < core_ar_width)
{
printf("video_resolution_adjust: ideal width %d wider than aspect restricted width %dx%d. Not adjusting resolution.\n", core_ar_width, disp_ar_width, disp_h);
return;
}
disp_w = disp_ar_width;
printf("video_resolution_adjust: using display aspect ratio - ");
}
else
{
disp_w = core_ar_width;
printf("video_resolution_adjust: using core aspect ratio - ");
}
disp_w = (disp_w + 7) & ~0x7; // round up to 8
printf("scale x%d, %dx%d.\n", scale, disp_w, disp_h);
float refresh = 1000000.0 / ((vm->item[1] + vm->item[2] + vm->item[3] + vm->item[4])*(vm->item[5] + vm->item[6] + vm->item[7] + vm->item[8]) / vm->Fpix);
video_calculate_cvt(disp_w, disp_h, refresh, vm->param.rb, vm);
setPLL(vm->Fpix, vm);
}
static void video_scaling_adjust(const VideoInfo *vi, const vmode_custom_t *vm)
{
if (cfg.vscale_mode >= 4)
{
spi_uio_cmd16(UIO_SETHEIGHT, 0);
spi_uio_cmd16(UIO_SETWIDTH, 0);
return;
}
const uint32_t height = vi->rotated ? vi->width : vi->height;
uint32_t scrh = vm->item[5];
if (scrh)
{
if (cfg.vscale_mode && height)
{
uint32_t div = 1 << (cfg.vscale_mode - 1);
uint32_t mag = (scrh*div) / height;
scrh = (height * mag) / div;
printf("Set vertical scaling to : %d\n", scrh);
spi_uio_cmd16(UIO_SETHEIGHT, scrh);
}
else if (cfg.vscale_border)
{
uint32_t border = cfg.vscale_border * 2;
if ((border + 100) > scrh) border = scrh - 100;
scrh -= border;
printf("Set max vertical resolution to : %d\n", scrh);
spi_uio_cmd16(UIO_SETHEIGHT, scrh);
}
else
{
spi_uio_cmd16(UIO_SETHEIGHT, 0);
}
}
uint32_t scrw = vm->item[1];
if (scrw)
{
if (cfg.vscale_border && !(cfg.vscale_mode && height))
{
uint32_t border = cfg.vscale_border * 2;
if ((border + 100) > scrw) border = scrw - 100;
scrw -= border;
printf("Set max horizontal resolution to : %d\n", scrw);
spi_uio_cmd16(UIO_SETWIDTH, scrw);
}
else
{
spi_uio_cmd16(UIO_SETWIDTH, 0);
}
}
minimig_set_adjust(2);
}
bool video_mode_select(uint32_t vtime, vmode_custom_t* out_mode)
{
vmode_custom_t *v = &v_def;
bool adjustable = true;
printf("\033[1;33mvideo_mode_select(%u): ", vtime);
if (vtime == 0 || !cfg.vsync_adjust)
{
printf(", using default mode");
adjustable = false;
}
else if (vmode_pal || vmode_ntsc)
{
if (vtime > 1800000)
{
if (vmode_pal)
{
printf(", using PAL mode");
v = &v_pal;
}
else
{
printf(", PAL mode cannot be used. Using predefined NTSC mode");
v = &v_ntsc;
adjustable = false;
}
}
else
{
if (vmode_ntsc)
{
printf(", using NTSC mode");
v = &v_ntsc;
}
else
{
printf(", NTSC mode cannot be used. Using predefined PAL mode");
v = &v_pal;
adjustable = false;
}
}
}
else
{
printf(", using default mode");
}
printf(".\033[0m\n");
memcpy(out_mode, v, sizeof(vmode_custom_t));
return adjustable;
}
void video_mode_adjust()
{
static bool force = false;
VideoInfo video_info;
const bool vid_changed = get_video_info(force, &video_info);
if (vid_changed || force)
{
current_video_info = video_info;
show_video_info(&video_info, &v_cur);
}
force = false;
if (vid_changed && !is_menu())
{
if (cfg_has_video_sections())
{
cfg_parse();
video_mode_load();
user_io_send_buttons(1);
}
if ((cfg.vsync_adjust || cfg.vscale_mode >= 4))
{
const uint32_t vtime = video_info.vtime;
printf("\033[1;33madjust_video_mode(%u): vsync_adjust=%d vscale_mode=%d.\033[0m\n", vtime, cfg.vsync_adjust, cfg.vscale_mode);
vmode_custom_t new_mode;
bool adjust = video_mode_select(vtime, &new_mode);
video_resolution_adjust(&video_info, &new_mode);
vmode_custom_t *v = &new_mode;
double Fpix = 0;
if (adjust)
{
Fpix = 100 * (v->item[1] + v->item[2] + v->item[3] + v->item[4]) * (v->item[5] + v->item[6] + v->item[7] + v->item[8]);
Fpix /= vtime;
if (Fpix < 2.f || Fpix > 300.f)
{
printf("Estimated Fpix(%.4f MHz) is outside supported range. Canceling auto-adjust.\n", Fpix);
Fpix = 0;
}
float hz = 100000000.0f / vtime;
if (cfg.refresh_min && hz < cfg.refresh_min)
{
printf("Estimated frame rate (%f Hz) is less than REFRESH_MIN(%f Hz). Canceling auto-adjust.\n", hz, cfg.refresh_min);
Fpix = 0;
}
if (cfg.refresh_max && hz > cfg.refresh_max)
{
printf("Estimated frame rate (%f Hz) is more than REFRESH_MAX(%f Hz). Canceling auto-adjust.\n", hz, cfg.refresh_max);
Fpix = 0;
}
}
video_set_mode(v, Fpix);
user_io_send_buttons(1);
force = true;
}
else if (cfg_has_video_sections()) // if we have video sections but aren't updating the resolution for other reasons, then do it here
{
video_set_mode(&v_def, 0);
user_io_send_buttons(1);
force = true;
}
else
{
set_vfilter(1); // force update filters in case interlacing changed
}
video_scaling_adjust(&video_info, &v_cur);
}
else
{
set_vfilter(0); // update filters if flags have changed
}
}
static void fb_write_module_params()
{
int width = fb_width;
int height = fb_height;
offload_add_work([=]
{
FILE *fp = fopen("/sys/module/MiSTer_fb/parameters/mode", "wt");
if (fp)
{
fprintf(fp, "%d %d %d %d %d\n", 8888, 1, width, height, width * 4);
fclose(fp);
}
});
}
void video_fb_enable(int enable, int n)
{
PROFILE_FUNCTION();
if (fb_base)
{
int res = spi_uio_cmd_cont(UIO_SET_FBUF);
if (res)
{
if (is_menu() && !enable && menu_bg)
{
enable = 1;
n = menu_bgn;
}
if (enable)
{
uint32_t fb_addr = FB_ADDR + (FB_SIZE * 4 * n) + (n ? 0 : 4096);
fb_num = n;
int xoff = 0, yoff = 0;
if (cfg.direct_video)
{
xoff = v_cur.item[4] - FB_DV_LBRD;
yoff = v_cur.item[8] - FB_DV_UBRD;
}
//printf("Switch to Linux frame buffer\n");
spi_w((uint16_t)(FB_EN | FB_FMT_RxB | FB_FMT_8888)); // format, enable flag
spi_w((uint16_t)fb_addr); // base address low word
spi_w(fb_addr >> 16); // base address high word
spi_w(fb_width); // frame width
spi_w(fb_height); // frame height
spi_w(xoff); // scaled left
spi_w(xoff + v_cur.item[1] - 1); // scaled right
spi_w(yoff); // scaled top
spi_w(yoff + v_cur.item[5] - 1); // scaled bottom
spi_w(fb_width * 4); // stride
//printf("Linux frame buffer: %dx%d, stride = %d bytes\n", fb_width, fb_height, fb_width * 4);
if (!fb_num)
{
fb_write_module_params();
input_switch(0);
}
else
{
input_switch(1);
}
}
else
{
printf("Switch to core frame buffer\n");
spi_w(0); // enable flag
input_switch(1);
}
fb_enabled = enable;
}
else
{
printf("Core doesn't support HPS frame buffer\n");
input_switch(1);
}
DisableIO();
if (cfg.direct_video) set_vga_fb(enable);
if (is_menu()) user_io_status_set("[8:5]", (fb_enabled && !fb_num) ? 0x160 : 0);
}
}
int video_fb_state()
{
if (is_menu())
{
return fb_enabled && !fb_num;
}
return fb_enabled;
}
static void video_fb_config()
{
PROFILE_FUNCTION();
int fb_scale = cfg.fb_size;
if (fb_scale <= 1)
{
if (((v_cur.item[1] * v_cur.item[5]) > FB_SIZE))
fb_scale = 2;
else
fb_scale = 1;
}
else if (fb_scale == 3) fb_scale = 2;
else if (fb_scale > 4) fb_scale = 4;
const int fb_scale_x = fb_scale;
const int fb_scale_y = v_cur.param.pr == 0 ? fb_scale : fb_scale * 2;
fb_width = v_cur.item[1] / fb_scale_x;
fb_height = v_cur.item[5] / fb_scale_y;
brd_x = cfg.vscale_border / fb_scale_x;
brd_y = cfg.vscale_border / fb_scale_y;
if (fb_enabled) video_fb_enable(1, fb_num);
fb_write_module_params();
}
static void draw_checkers()
{
volatile uint32_t* buf = fb_base + (FB_SIZE*menu_bgn);
uint32_t col1 = 0x888888;
uint32_t col2 = 0x666666;
int sz = fb_width / 128;
for (int y = brd_y; y < fb_height - brd_y; y++)
{
int c1 = (y / sz) & 1;
int pos = y * fb_width;
for (int x = brd_x; x < fb_width - brd_x; x++)
{
int c2 = c1 ^ ((x / sz) & 1);
buf[pos + x] = c2 ? col2 : col1;
}
}
}
static void draw_hbars1()
{
volatile uint32_t* buf = fb_base + (FB_SIZE*menu_bgn);
int height = fb_height - 2 * brd_y;
int old_base = 0;
int gray = 255;
int sz = height / 7;
int stp = 0;
for (int y = brd_y; y < fb_height - brd_y; y++)
{
int pos = y * fb_width;
int base_color = ((7 * (y-brd_y)) / height) + 1;
if (old_base != base_color)
{
stp = sz;
old_base = base_color;
}
gray = 255 * stp / sz;
for (int x = brd_x; x < fb_width - brd_x; x++)
{
uint32_t color = 0;
if (base_color & 4) color |= gray;
if (base_color & 2) color |= gray << 8;
if (base_color & 1) color |= gray << 16;
buf[pos + x] = color;
}
stp--;
if (stp < 0) stp = 0;
}
}
static void draw_hbars2()
{
volatile uint32_t* buf = fb_base + (FB_SIZE*menu_bgn);
int height = fb_height - 2 * brd_y;
int width = fb_width - 2 * brd_x;
for (int y = brd_y; y < fb_height - brd_y; y++)
{
int pos = y * fb_width;
int base_color = ((14 * (y - brd_y)) / height);
int inv = base_color & 1;
base_color >>= 1;
base_color = (inv ? base_color : 6 - base_color) + 1;
for (int x = brd_x; x < fb_width - brd_x; x++)
{
int gray = (256 * (x - brd_x)) / width;
if (inv) gray = 255 - gray;
uint32_t color = 0;
if (base_color & 4) color |= gray;
if (base_color & 2) color |= gray << 8;
if (base_color & 1) color |= gray << 16;
buf[pos + x] = color;
}
}
}
static void draw_vbars1()
{
volatile uint32_t* buf = fb_base + (FB_SIZE*menu_bgn);
int width = fb_width - 2 * brd_x;
int sz = width / 7;
int stp = 0;
for (int y = brd_y; y < fb_height - brd_y; y++)
{
int pos = y * fb_width;
int old_base = 0;
int gray = 255;
for (int x = brd_x; x < fb_width - brd_x; x++)
{
int base_color = ((7 * (x - brd_x)) / width) + 1;
if (old_base != base_color)
{
stp = sz;
old_base = base_color;
}
gray = 255 * stp / sz;
uint32_t color = 0;
if (base_color & 4) color |= gray;
if (base_color & 2) color |= gray << 8;
if (base_color & 1) color |= gray << 16;
buf[pos + x] = color;
stp--;
if (stp < 0) stp = 0;
}
}
}
static void draw_vbars2()
{
volatile uint32_t* buf = fb_base + (FB_SIZE*menu_bgn);
int height = fb_height - 2 * brd_y;
int width = fb_width - 2 * brd_x;
for (int y = brd_y; y < fb_height - brd_y; y++)
{
int pos = y * fb_width;
for (int x = brd_x; x < fb_width - brd_x; x++)
{
int gray = ((256 * (y - brd_y)) / height);
int base_color = ((14 * (x - brd_x)) / width);
int inv = base_color & 1;
base_color >>= 1;
base_color = (inv ? base_color : 6 - base_color) + 1;
if (inv) gray = 255 - gray;
uint32_t color = 0;
if (base_color & 4) color |= gray;
if (base_color & 2) color |= gray << 8;
if (base_color & 1) color |= gray << 16;
buf[pos + x] = color;
}
}
}
static void draw_spectrum()
{
volatile uint32_t* buf = fb_base + (FB_SIZE*menu_bgn);
int height = fb_height - 2 * brd_y;
int width = fb_width - 2 * brd_x;
for (int y = brd_y; y < fb_height - brd_y; y++)
{
int pos = y * fb_width;
int blue = ((256 * (y - brd_y)) / height);
for (int x = brd_x; x < fb_width - brd_x; x++)
{
int green = ((256 * (x - brd_x)) / width) - blue / 2;
int red = 255 - green - blue / 2;
if (red < 0) red = 0;
if (green < 0) green = 0;
buf[pos + x] = (red << 16) | (green << 8) | blue;
}
}
}
static void draw_black()
{
volatile uint32_t* buf = fb_base + (FB_SIZE*menu_bgn);
for (int y = 0; y < fb_height; y++)
{
int pos = y * fb_width;
for (int x = 0; x < fb_width; x++) buf[pos++] = 0;
}
}
static uint64_t getus()
{
struct timeval tv;
gettimeofday(&tv, NULL);
return (tv.tv_sec * 10000000) + tv.tv_usec;
}
static void vs_wait()
{
int fb = open("/dev/fb0", O_RDWR | O_CLOEXEC);
int zero = 0;
uint64_t t1, t2;
if (ioctl(fb, FBIO_WAITFORVSYNC, &zero) == -1)
{
printf("fb ioctl failed: %s\n", strerror(errno));
close(fb);
return;
}
t1 = getus();
ioctl(fb, FBIO_WAITFORVSYNC, &zero);
t2 = getus();
close(fb);
printf("vs_wait(us): %llu\n", t2 - t1);
}
static char *get_file_fromdir(const char* dir, int num, int *count)
{
static char name[256+32];
name[0] = 0;
if(count) *count = 0;
DIR *d = opendir(getFullPath(dir));
if (d)
{
int cnt = 0;
struct dirent *de = readdir(d);
while (de)
{
int len = strlen(de->d_name);
if (len > 4 && (!strcasecmp(de->d_name + len - 4, ".png") || !strcasecmp(de->d_name + len - 4, ".jpg")))
{
if (num == cnt) break;
cnt++;
}
de = readdir(d);
}
if (de)
{
snprintf(name, sizeof(name), "%s/%s", dir, de->d_name);
}
closedir(d);
if(count) *count = cnt;
}
return name;
}
static Imlib_Image load_bg()
{
const char* fname = "menu.png";
if (!FileExists(fname))
{
fname = "menu.jpg";
if (!FileExists(fname)) fname = 0;
}
if (!fname)
{
char bgdir[32];
int alt = altcfg();
sprintf(bgdir, "wallpapers_alt_%d", alt);
if (alt == 1 && !PathIsDir(bgdir)) strcpy(bgdir, "wallpapers_alt");
if (alt <= 0 || !PathIsDir(bgdir)) strcpy(bgdir, "wallpapers");
if (PathIsDir(bgdir))
{
int rndfd = open("/dev/urandom", O_RDONLY | O_CLOEXEC);
if (rndfd >= 0)
{
uint32_t rnd;
read(rndfd, &rnd, sizeof(rnd));
close(rndfd);
int count = 0;
get_file_fromdir(bgdir, -1, &count);
if (count > 0) fname = get_file_fromdir(bgdir, rnd % count, &count);
}
}
}
if (fname)
{
Imlib_Load_Error error = IMLIB_LOAD_ERROR_NONE;
Imlib_Image img = imlib_load_image_with_error_return(getFullPath(fname), &error);
if (img) return img;
printf("Image %s loading error %d\n", fname, error);
}
return NULL;
}
static int bg_has_picture = 0;
extern uint8_t _binary_logo_png_start[], _binary_logo_png_end[];
void video_menu_bg(int n, int idle)
{
bg_has_picture = 0;
menu_bg = n;
if (n)
{
//printf("**** BG DEBUG START ****\n");
//printf("n = %d\n", n);
Imlib_Load_Error error;
static Imlib_Image logo = 0;
if (!logo)
{
unlink("/tmp/logo.png");
if (FileSave("/tmp/logo.png", _binary_logo_png_start, _binary_logo_png_end - _binary_logo_png_start))
{
while(1)
{
error = IMLIB_LOAD_ERROR_NONE;
if ((logo = imlib_load_image_with_error_return("/tmp/logo.png", &error))) break;
else
{
if (error != IMLIB_LOAD_ERROR_NO_LOADER_FOR_FILE_FORMAT)
{
printf("logo.png error = %d\n", error);
break;
}
}
vs_wait();
};
if (cfg.osd_rotate)
{
imlib_context_set_image(logo);
imlib_image_orientate(cfg.osd_rotate == 1 ? 3 : 1);
}
}
else
{
printf("Fail to save to /tmp/logo.png\n");
}
unlink("/tmp/logo.png");
printf("Logo = %p\n", logo);
}
menu_bgn = (menu_bgn == 1) ? 2 : 1;
static Imlib_Image menubg = 0;
static Imlib_Image bg1 = 0, bg2 = 0;
if (!bg1) bg1 = imlib_create_image_using_data(fb_width, fb_height, (uint32_t*)(fb_base + (FB_SIZE * 1)));
if (!bg1) printf("Warning: bg1 is 0\n");
if (!bg2) bg2 = imlib_create_image_using_data(fb_width, fb_height, (uint32_t*)(fb_base + (FB_SIZE * 2)));
if (!bg2) printf("Warning: bg2 is 0\n");
Imlib_Image *bg = (menu_bgn == 1) ? &bg1 : &bg2;
//printf("*bg = %p\n", *bg);
static Imlib_Image curtain = 0;
if (!curtain)
{
curtain = imlib_create_image(fb_width, fb_height);
imlib_context_set_image(curtain);
imlib_image_set_has_alpha(1);
uint32_t *data = imlib_image_get_data();
int sz = fb_width * fb_height;
for (int i = 0; i < sz; i++)
{
*data++ = 0x9F000000;
}
}
draw_black();
if (idle < 3)
{
switch (n)
{
case 1:
if (!menubg) menubg = load_bg();
if (menubg)
{
imlib_context_set_image(menubg);
int src_w = imlib_image_get_width();
int src_h = imlib_image_get_height();
//printf("menubg: src_w=%d, src_h=%d\n", src_w, src_h);
if (*bg)
{
imlib_context_set_image(*bg);
imlib_blend_image_onto_image(menubg, 0,
0, 0, //int source_x, int source_y,
src_w, src_h, //int source_width, int source_height,
brd_x, brd_y, //int destination_x, int destination_y,
fb_width - (brd_x * 2), fb_height - (brd_y * 2) //int destination_width, int destination_height
);
bg_has_picture = 1;
break;
}
else
{
printf("*bg = 0!\n");
}
}
draw_checkers();
break;
case 2:
draw_hbars1();
break;
case 3:
draw_hbars2();
break;
case 4:
draw_vbars1();
break;
case 5:
draw_vbars2();
break;
case 6:
draw_spectrum();
break;
case 7:
draw_black();
break;
}
}
if (cfg.logo && logo && !idle)
{
imlib_context_set_image(logo);
int src_w = imlib_image_get_width();
int src_h = imlib_image_get_height();
printf("logo: src_w=%d, src_h=%d\n", src_w, src_h);
int width = fb_width - (brd_x * 2);
int height = fb_height - (brd_y * 2);
int dst_w, dst_h;
int dst_x, dst_y;
if (cfg.osd_rotate)
{
dst_h = height / 2;
dst_w = src_w * dst_h / src_h;
if (cfg.osd_rotate == 1)
{
dst_x = brd_x;
dst_y = height - dst_h;
}
else
{
dst_x = width - dst_w;
dst_y = brd_y;
}
}
else
{
dst_x = brd_x;
dst_y = brd_y;
dst_w = width * 2 / 7;
dst_h = src_h * dst_w / src_w;
}
if (*bg)
{
if (cfg.direct_video && (v_cur.item[5] < 300)) dst_h /= 2;
imlib_context_set_image(*bg);
imlib_blend_image_onto_image(logo, 1,
0, 0, //int source_x, int source_y,
src_w, src_h, //int source_width, int source_height,
dst_x, dst_y, //int destination_x, int destination_y,
dst_w, dst_h //int destination_width, int destination_height
);
}
else
{
printf("*bg = 0!\n");
}
}
if (curtain)
{
if (idle > 1 && *bg)
{
imlib_context_set_image(*bg);
imlib_blend_image_onto_image(curtain, 1,
0, 0, //int source_x, int source_y,
fb_width, fb_height, //int source_width, int source_height,
0, 0, //int destination_x, int destination_y,
fb_width, fb_height //int destination_width, int destination_height
);
}
}
else
{
printf("curtain = 0!\n");
}
//test the fb driver
//vs_wait();
//printf("**** BG DEBUG END ****\n");
}
video_fb_enable(0);
}
int video_bg_has_picture()
{
return bg_has_picture;
}
int video_chvt(int num)
{
static int cur_vt = 0;
if (num)
{
cur_vt = num;
int fd;
if ((fd = open("/dev/tty0", O_RDONLY | O_CLOEXEC)) >= 0)
{
if (ioctl(fd, VT_ACTIVATE, cur_vt)) printf("ioctl VT_ACTIVATE fails\n");
if (ioctl(fd, VT_WAITACTIVE, cur_vt)) printf("ioctl VT_WAITACTIVE fails\n");
close(fd);
}
}
return cur_vt ? cur_vt : 1;
}
void video_cmd(char *cmd)
{
if (video_fb_state())
{
int accept = 0;
int fmt = 0, rb = 0, div = -1, width = -1, height = -1;
uint16_t hmin, hmax, vmin, vmax;
if (sscanf(cmd, "fb_cmd0 %d %d %d", &fmt, &rb, &div) == 3)
{
if (div >= 1 && div <= 4)
{
width = v_cur.item[1] / div;
height = v_cur.item[5] / div;
hmin = vmin = 0;
hmax = v_cur.item[1] - 1;
vmax = v_cur.item[5] - 1;
accept = 1;
}
}
if (sscanf(cmd, "fb_cmd2 %d %d %d", &fmt, &rb, &div) == 3)
{
if (div >= 1 && div <= 4)
{
width = v_cur.item[1] / div;
height = v_cur.item[5] / div;
hmin = vmin = 0;
hmax = v_cur.item[1] - 1;
vmax = v_cur.item[5] - 1;
accept = 1;
}
}
if (sscanf(cmd, "fb_cmd1 %d %d %d %d", &fmt, &rb, &width, &height) == 4)
{
if (width < 120 || width > (int)v_cur.item[1]) width = v_cur.item[1];
if (height < 120 || height > (int)v_cur.item[5]) height = v_cur.item[5];
int divx = 1;
int divy = 1;
if (cfg.direct_video && (v_cur.item[5] < 300))
{
// TV 240P/288P
while ((width*(divx + 1)) <= (int)v_cur.item[1]) divx++;
while ((height*(divy + 1)) <= (int)v_cur.item[5]) divy++;
}
else
{
while ((width*(divx + 1)) <= (int)v_cur.item[1] && (height*(divx + 1)) <= (int)v_cur.item[5]) divx++;
divy = divx;
}
hmin = (uint16_t)((v_cur.item[1] - (width * divx)) / 2);
vmin = (uint16_t)((v_cur.item[5] - (height * divy)) / 2);
hmax = hmin + (width * divx) - 1;
vmax = vmin + (height * divy) - 1;
accept = 1;
}
int bpp = 0;
int sc_fmt = 0;
if (accept)
{
switch (fmt)
{
case 8888:
bpp = 4;
sc_fmt = FB_FMT_8888;
break;
case 1555:
bpp = 2;
sc_fmt = FB_FMT_1555;
break;
case 565:
bpp = 2;
sc_fmt = FB_FMT_565;
break;
case 8:
bpp = 1;
sc_fmt = FB_FMT_PAL8;
rb = 0;
break;
default:
accept = 0;
}
}
if (rb)
{
sc_fmt |= FB_FMT_RxB;
rb = 1;
}
if(accept)
{
int stride = ((width * bpp) + 15) & ~15;
printf("fb_cmd: new mode: %dx%d => %dx%d color=%d stride=%d\n", width, height, hmax - hmin + 1, vmax - vmin + 1, fmt, stride);
uint32_t addr = FB_ADDR + 4096;
int xoff = 0, yoff = 0;
if (cfg.direct_video)
{
xoff = v_cur.item[4] - FB_DV_LBRD;
yoff = v_cur.item[8] - FB_DV_UBRD;
}
spi_uio_cmd_cont(UIO_SET_FBUF);
spi_w(FB_EN | sc_fmt); // format, enable flag
spi_w((uint16_t)addr); // base address low word
spi_w(addr >> 16); // base address high word
spi_w(width); // frame width
spi_w(height); // frame height
spi_w(xoff + hmin); // scaled left
spi_w(xoff + hmax); // scaled right
spi_w(yoff + vmin); // scaled top
spi_w(yoff + vmax); // scaled bottom
spi_w(stride); // stride
DisableIO();
if (cmd[6] != '2')
{
static char cmd[256];
sprintf(cmd, "echo %d %d %d %d %d >/sys/module/MiSTer_fb/parameters/mode", fmt, rb, width, height, stride);
system(cmd);
}
}
else
{
printf("video_cmd: unknown command or format.\n");
}
}
}
static constexpr int CELL_GRAN_RND = 4;
static int determine_vsync(int w, int h)
{
const int arx[] = {4, 16, 16, 5, 15};
const int ary[] = {3, 9, 10, 4, 9 };
const int vsync[] = {4, 5, 6, 7, 7 };
for (int ar = 0; ar < 5; ar++)
{
int w_calc = ((h * arx[ar]) / (ary[ar] * CELL_GRAN_RND)) * CELL_GRAN_RND;
if (w_calc == w)
{
return vsync[ar];
}
}
return 10;
}
static void video_calculate_cvt_int(int h_pixels, int v_lines, float refresh_rate, bool reduced_blanking, vmode_custom_t *vmode)
{
// Based on xfree86 cvt.c and https://tomverbeure.github.io/video_timings_calculator
const float CLOCK_STEP = 0.25f;
const int MIN_V_BPORCH = 6;
const int V_FRONT_PORCH = 3;
const int h_pixels_rnd = (h_pixels / CELL_GRAN_RND) * CELL_GRAN_RND;
const int v_sync = determine_vsync(h_pixels_rnd, v_lines);
int v_back_porch;
int h_blank, h_sync, h_back_porch, h_front_porch;
int total_pixels;
float pixel_freq;
if (reduced_blanking)
{
const int RB_V_FPORCH = 3;
const float RB_MIN_V_BLANK = 460.0f;
float h_period_est = ((1000000.0f / refresh_rate) - RB_MIN_V_BLANK) / (float)v_lines;
h_blank = 160;
int vbi_lines = (int)(RB_MIN_V_BLANK / h_period_est) + 1;
int rb_min_vbi = RB_V_FPORCH + v_sync + MIN_V_BPORCH;
int act_vbi_lines = (vbi_lines < rb_min_vbi) ? rb_min_vbi : vbi_lines;
int total_v_lines = act_vbi_lines + v_lines;
total_pixels = h_blank + h_pixels_rnd;
pixel_freq = CLOCK_STEP * floorf((refresh_rate * (float)(total_v_lines * total_pixels) / 1000000.0f) / CLOCK_STEP);
v_back_porch = act_vbi_lines - V_FRONT_PORCH - v_sync;
h_sync = 32;
h_back_porch = 80;
h_front_porch = h_blank - h_sync - h_back_porch;
}
else
{
const float MIN_VSYNC_BP = 550.0f;
const float C_PRIME = 30.0f;
const float M_PRIME = 300.0f;
const float H_SYNC_PER = 0.08f;
const float h_period_est = ((1.0f / refresh_rate) - MIN_VSYNC_BP / 1000000.0f) / (float)(v_lines + V_FRONT_PORCH) * 1000000.0f;
int v_sync_bp = (int)(MIN_VSYNC_BP / h_period_est) + 1;
if (v_sync_bp < (v_sync + MIN_V_BPORCH))
{
v_sync_bp = v_sync + MIN_V_BPORCH;
}
v_back_porch = v_sync_bp - v_sync;
float ideal_duty_cycle = C_PRIME - (M_PRIME * h_period_est / 1000.0f);
if (ideal_duty_cycle < 20)
{
h_blank = (h_pixels_rnd / 4 / (2 * CELL_GRAN_RND)) * (2 * CELL_GRAN_RND);
}
else
{
h_blank = (int)((float)h_pixels_rnd * ideal_duty_cycle / (100.0f - ideal_duty_cycle) / (2 * CELL_GRAN_RND)) * (2 * CELL_GRAN_RND);
}
total_pixels = h_pixels_rnd + h_blank;
h_sync = (int)(H_SYNC_PER * (float)total_pixels / CELL_GRAN_RND) * CELL_GRAN_RND;
h_back_porch = h_blank / 2;
h_front_porch = h_blank - h_sync - h_back_porch;
pixel_freq = CLOCK_STEP * floorf((float)total_pixels / h_period_est / CLOCK_STEP);
}
vmode->item[0] = 1;
vmode->param.hact = h_pixels_rnd;
vmode->param.hfp = h_front_porch;
vmode->param.hs = h_sync;
vmode->param.hbp = h_back_porch;
vmode->param.vact = v_lines;
vmode->param.vfp = V_FRONT_PORCH - 1;
vmode->param.vs = v_sync;
vmode->param.vbp = v_back_porch + 1;
vmode->param.rb = reduced_blanking ? 1 : 0;
vmode->Fpix = pixel_freq;
if (h_pixels_rnd > 2048)
{
vmode->param.pr = 1;
vmode->param.hact /= 2;
vmode->param.hbp /= 2;
vmode->param.hfp /= 2;
vmode->param.hs /= 2;
vmode->Fpix /= 2.0;
}
else
{
vmode->param.pr = 0;
}
printf("Calculated %dx%d@%0.1fhz %s timings: %d,%d,%d,%d,%d,%d,%d,%d,%d,%s%s\n",
h_pixels, v_lines, refresh_rate, reduced_blanking ? "CVT-RB" : "CVT",
vmode->item[1], vmode->item[2], vmode->item[3], vmode->item[4],
vmode->item[5], vmode->item[6], vmode->item[7], vmode->item[8],
(int)(pixel_freq * 1000.0f),
reduced_blanking ? "cvtrb" : "cvt",
vmode->param.pr ? ",pr" : "");
}
static void video_calculate_cvt(int h_pixels, int v_lines, float refresh_rate, int reduced_blanking, vmode_custom_t *vmode)
{
// If the resolution it too wide and the core doesn't support pixel repetition then just do 1080p
if (h_pixels > 2048 && !supports_pr())
{
printf("Pixel repetition not supported by core for %dx%d resolution, defaulting 1080p.\n", h_pixels, v_lines);
video_calculate_cvt(1920, 1080, refresh_rate, reduced_blanking, vmode);
return;
}
video_calculate_cvt_int(h_pixels, v_lines, refresh_rate, reduced_blanking == 1, vmode);
if (vmode->Fpix > 210.f && reduced_blanking == 2)
{
printf("Calculated pixel clock is too high. Trying CVT-RB timings.\n");
video_calculate_cvt_int(h_pixels, v_lines, refresh_rate, 1, vmode);
}
}
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