RetroArch/gfx/video_crt_switch.c
miguedevel 22de73da3b Fix NULL related crash on CRT Switchres code
gfxctx.ident returns NULL on Windows but there's no check for this
2023-05-28 05:22:50 +02:00

645 lines
20 KiB
C

/* CRT SwitchRes Core
* Copyright (C) 2018 Alphanu / Ben Templeman.
*
* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <stddef.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <libretro.h>
#include <math.h>
#include "../retroarch.h"
#include <retro_common_api.h>
#include "video_crt_switch.h"
#include "video_display_server.h"
#include "../core_info.h"
#include "../verbosity.h"
#include "../file_path_special.h"
#include "../paths.h"
#include "gfx_display.h"
#if !defined(HAVE_VIDEOCORE)
#include "../deps/switchres/switchres_wrapper.h"
static sr_mode srm;
#endif
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
/* Forward declarations */
static void crt_check_hh_core(videocrt_switch_t *p_switch);
static void crt_adjust_sr_ini(videocrt_switch_t *p_switch);
static void get_modeline_for_kms(videocrt_switch_t *p_switch, sr_mode* srm);
/* Global local variables */
static bool ini_overrides_loaded = false;
static char core_name[NAME_MAX_LENGTH]; /* Same size as library_name on retroarch_data.h */
static char content_dir[PATH_MAX_LENGTH];
#if defined(HAVE_VIDEOCORE) /* Need to add video core to SR2 */
#include "include/userland/interface/vmcs_host/vc_vchi_gencmd.h"
static void crt_rpi_switch(videocrt_switch_t *p_switch,int width, int height, float hz, int xoffset, int native_width);
#endif
static bool crt_check_for_changes(videocrt_switch_t *p_switch)
{
if ((p_switch->ra_core_height != p_switch->ra_tmp_height) ||
(p_switch->ra_core_width != p_switch->ra_tmp_width) ||
(p_switch->center_adjust != p_switch->tmp_center_adjust||
p_switch->porch_adjust != p_switch->tmp_porch_adjust ) ||
(p_switch->ra_core_hz != p_switch->ra_tmp_core_hz) ||
(p_switch->rotated != p_switch->tmp_rotated))
return true;
return false;
}
static void crt_store_temp_changes(videocrt_switch_t *p_switch)
{
p_switch->ra_tmp_height = p_switch->ra_core_height;
p_switch->ra_tmp_width = p_switch->ra_core_width;
p_switch->tmp_center_adjust = p_switch->center_adjust;
p_switch->tmp_porch_adjust = p_switch->porch_adjust;
p_switch->ra_tmp_core_hz = p_switch->ra_core_hz;
p_switch->tmp_rotated = p_switch->rotated;
}
static void switch_crt_hz(videocrt_switch_t *p_switch)
{
video_monitor_set_refresh_rate(p_switch->sr_core_hz);
}
static void crt_aspect_ratio_switch(
videocrt_switch_t *p_switch,
unsigned width, unsigned height,
float srm_width, float srm_height)
{
/* Send aspect float to video_driver */
p_switch->fly_aspect = (float)width / (float)height;
video_driver_set_aspect_ratio_value((float)p_switch->fly_aspect);
RARCH_LOG("[CRT]: Setting Aspect Ratio: %f \n",
(float)p_switch->fly_aspect);
RARCH_LOG("[CRT]: Setting Video Screen Size to: %dx%d \n",
width, height);
video_driver_set_size(width , height);
video_driver_set_viewport(width , height,1,1);
video_driver_apply_state_changes();
}
static void set_aspect(videocrt_switch_t *p_switch,
unsigned int width, unsigned int height,
unsigned int srm_width, unsigned srm_height,
float srm_xscale, float srm_yscale,
bool srm_isstretched )
{
unsigned int patched_width = 0;
unsigned int patched_height = 0;
int scaled_width = 0;
int scaled_height = 0;
/* used to fix aspect should SR not find a resolution */
if (srm_width == 0)
{
video_driver_get_size(&patched_width, &patched_height);
srm_xscale = 1;
srm_yscale = 1;
}
else
{
/* use native values as we will be multiplying by srm scale later. */
patched_width = width;
patched_height = height;
}
if (srm_width >= 1920 && !srm_isstretched)
RARCH_LOG("[CRT]: Super resolution detected. Fractal scaling @ X:%f Y:%f \n", srm_xscale, srm_yscale);
else if (srm_isstretched && srm_width > 0 )
RARCH_LOG("[CRT]: Resolution is stretched. Fractal scaling @ X:%f Y:%f \n", srm_xscale, srm_yscale);
scaled_width = roundf(patched_width * srm_xscale);
scaled_height = roundf(patched_height * srm_yscale);
crt_aspect_ratio_switch(p_switch, scaled_width, scaled_height, srm_width, srm_height);
}
static bool is_kms_driver_context()
{
gfx_ctx_ident_t gfxctx;
video_context_driver_get_ident(&gfxctx);
RARCH_LOG("[CRT] Video context is: %s\n", gfxctx.ident);
if (gfxctx.ident !=NULL && strncmp(gfxctx.ident, "kms",3) == 0)
return true;
return false;
}
#if !defined(HAVE_VIDEOCORE)
static bool crt_sr2_init(videocrt_switch_t *p_switch,
int monitor_index, unsigned int crt_mode, unsigned int super_width)
{
const char* err_msg;
char* mode;
char index[10];
char ra_config_path[PATH_MAX_LENGTH];
char sr_ini_file[PATH_MAX_LENGTH];
if (monitor_index+1 >= 0 && monitor_index+1 < 10)
snprintf(index, sizeof(index), "%d", monitor_index);
else
strlcpy(index, "0", sizeof(index));
p_switch->kms_ctx = is_kms_driver_context();
if (!p_switch->sr2_active)
{
sr_init();
#if (__STDC_VERSION__ >= 199409L) /* no logs for C98 or less */
sr_set_log_callback_info(RARCH_LOG);
sr_set_log_callback_debug(RARCH_DBG);
sr_set_log_callback_error(RARCH_ERR);
#endif
switch (crt_mode)
{
case 1:
sr_set_monitor("arcade_15");
RARCH_LOG("[CRT]: CRT Mode: %d - arcade_15 \n", crt_mode) ;
break;
case 2:
sr_set_monitor("arcade_31");
RARCH_LOG("[CRT]: CRT Mode: %d - arcade_31 \n", crt_mode) ;
break;
case 3:
sr_set_monitor("pc_31_120");
RARCH_LOG("[CRT]: CRT Mode: %d - pc_31_120 \n", crt_mode) ;
break;
case 4:
RARCH_LOG("[CRT]: CRT Mode: %d - Selected from ini \n", crt_mode) ;
break;
default:
break;
}
if (super_width >2)
sr_set_user_mode(super_width, 0, 0);
if (p_switch->kms_ctx)
p_switch->rtn = sr_init_disp("dummy", NULL);
else if (monitor_index+1 > 0)
{
RARCH_LOG("[CRT]: Monitor Index Manual: %s\n", &index[0]);
p_switch->rtn = sr_init_disp(index, NULL);
}
else
{
RARCH_LOG("[CRT]: Monitor Index Auto: %s\n","auto");
p_switch->rtn = sr_init_disp("auto", NULL);
}
RARCH_LOG("[CRT]: SR rtn %d \n", p_switch->rtn);
if (p_switch->rtn >= 0)
{
core_name[0] = '\0';
content_dir[0] = '\0';
/* For Lakka, check a switchres.ini next to user's retroarch.cfg */
fill_pathname_application_data(ra_config_path, PATH_MAX_LENGTH);
fill_pathname_join(sr_ini_file,
ra_config_path, "switchres.ini", sizeof(sr_ini_file));
if (path_is_valid(sr_ini_file))
{
RARCH_LOG("[CRT]: Loading switchres.ini override file from %s \n", sr_ini_file);
sr_load_ini(sr_ini_file);
}
}
}
if (p_switch->rtn >= 0 && !p_switch->kms_ctx)
{
p_switch->sr2_active = true;
return true;
}
else if (p_switch->rtn >= 0 && p_switch->kms_ctx)
{
p_switch->sr2_active = true;
RARCH_LOG("[CRT]: KMS context detected, keeping SR alive\n");
return true;
}
RARCH_ERR("[CRT]: error at init, CRT modeswitching disabled\n");
sr_deinit();
p_switch->sr2_active = false;
return false;
}
static void switch_res_crt(
videocrt_switch_t *p_switch,
unsigned width, unsigned height,
unsigned crt_mode, unsigned native_width,
int monitor_index, int super_width)
{
char current_core_name[NAME_MAX_LENGTH];
char current_content_dir[PATH_MAX_LENGTH];
int flags = 0, ret;
const char *err_msg = NULL;
int w = native_width;
int h = height;
double rr = p_switch->ra_core_hz;
/* Check if SR2 is loaded, if not, load it */
if (crt_sr2_init(p_switch, monitor_index, crt_mode, super_width))
{
/* Check for core and content changes in case we need
to make any adjustments */
if (crt_switch_core_name())
strlcpy(current_core_name, crt_switch_core_name(),
sizeof(current_core_name));
else
current_core_name[0] = '\0';
fill_pathname_parent_dir_name(current_content_dir,
path_get(RARCH_PATH_CONTENT),
sizeof(current_content_dir));
if ( !string_is_equal(core_name, current_core_name)
|| !string_is_equal(content_dir, current_content_dir))
{
/* A core or content change was detected,
we update the current values and make adjustments */
strlcpy(core_name, current_core_name, sizeof(core_name));
strlcpy(content_dir, current_content_dir, sizeof(content_dir));
RARCH_LOG("[CRT]: Current running core %s \n", core_name);
crt_adjust_sr_ini(p_switch);
crt_check_hh_core(p_switch);
}
if (p_switch->rotated)
flags |= SR_MODE_ROTATED;
bool swap_w_h = p_switch->rotated ^ retroarch_get_rotation();
ret = sr_add_mode(swap_w_h? h : w, swap_w_h? w : h, rr, flags, &srm);
if (!ret)
RARCH_LOG("[CRT]: SR failed to add mode");
if (p_switch->kms_ctx)
{
RARCH_LOG("[CRT]: KMS -> use sr_add_mode\n");
//settings_t *settings = config_get_ptr();
get_modeline_for_kms(p_switch, &srm);
// Need trigger the context set video mode
//crt_switch_driver_refresh();
video_driver_set_video_mode(srm.width, srm.height, true);
} else {
ret = sr_set_mode(srm.id);
}
if (!p_switch->kms_ctx && !ret)
RARCH_LOG("[CRT]: SR failed to switch mode");
p_switch->sr_core_hz = (float)srm.vfreq;
set_aspect(p_switch, retroarch_get_rotation()? h : w , retroarch_get_rotation()? w : h, srm.width, srm.height,
(float)srm.x_scale, (float)srm.y_scale, srm.is_stretched);
}
else
{
set_aspect(p_switch, width , height, width, height,
(float)1, (float)1, false);
video_driver_set_size(width , height);
video_driver_apply_state_changes();
}
}
#endif
void crt_destroy_modes(videocrt_switch_t *p_switch)
{
if (p_switch->sr2_active)
{
p_switch->sr2_active = false;
sr_deinit();
}
}
static void crt_check_hh_core(videocrt_switch_t *p_switch)
{
p_switch->hh_core = false;
}
#if !defined(HAVE_VIDEOCORE)
static void crt_fix_hh_res(videocrt_switch_t *p_switch,
int native_width, int width, int height,
int crt_mode, int monitor_index, int super_width)
{
int corrected_width = 320;
int corrected_height = 240;
switch_res_crt(p_switch, corrected_width, corrected_height,
crt_mode, corrected_width, monitor_index-1, super_width);
set_aspect(p_switch, native_width, height, native_width,
height ,(float)1,(float)1, false);
video_driver_set_size(native_width , height);
}
#endif
void crt_switch_res_core(
videocrt_switch_t *p_switch,
unsigned native_width, unsigned width, unsigned height,
float hz, bool rotated, unsigned crt_mode,
int crt_switch_center_adjust,
int crt_switch_porch_adjust,
int monitor_index, bool dynamic,
int super_width, bool hires_menu)
{
if (height <= 4)
{
if (hires_menu)
{
native_width = 640;
width = 640;
height = 480;
hz = 60;
}
else
{
native_width = 320;
width = 320;
height = 240;
hz = 60;
}
}
if (height != 4 )
{
p_switch->menu_active = false;
p_switch->porch_adjust = crt_switch_porch_adjust;
p_switch->ra_core_height = height;
p_switch->ra_core_hz = hz;
p_switch->ra_core_width = width;
p_switch->center_adjust = crt_switch_center_adjust;
p_switch->index = monitor_index;
p_switch->rotated = rotated;
/* Detect resolution change and switch */
if (crt_check_for_changes(p_switch))
{
RARCH_LOG("[CRT]: Requested Resolution: %dx%d@%f orientation: %s\n",
native_width, height, hz, rotated? "rotated" : "normal");
#if defined(HAVE_VIDEOCORE)
crt_rpi_switch(p_switch, width, height, hz, 0, native_width);
#else
if (p_switch->hh_core)
crt_fix_hh_res(p_switch, native_width,
width, height, crt_mode, monitor_index, super_width);
else
switch_res_crt(p_switch, p_switch->ra_core_width,
p_switch->ra_core_height, crt_mode,
native_width, monitor_index-1, super_width);
#endif
switch_crt_hz(p_switch);
crt_store_temp_changes(p_switch);
}
if (video_driver_get_aspect_ratio() != p_switch->fly_aspect)
{
RARCH_LOG("[CRT]: Restoring Aspect Ratio: %f \n",
(float)p_switch->fly_aspect);
video_driver_set_aspect_ratio_value((float)p_switch->fly_aspect);
video_driver_apply_state_changes();
}
}
}
void crt_adjust_sr_ini(videocrt_switch_t *p_switch)
{
char config_directory[PATH_MAX_LENGTH];
char switchres_ini_override_file[PATH_MAX_LENGTH];
if (p_switch->sr2_active)
{
/* First we reload the base switchres.ini file
to undo any overrides that might have been
loaded for another core */
if (ini_overrides_loaded)
{
RARCH_LOG("[CRT]: Loading default switchres.ini... \n");
sr_load_ini((char *)"switchres.ini");
ini_overrides_loaded = false;
}
if (core_name[0] != '\0')
{
/* Then we look for config/Core Name/Core Name.switchres.ini
and load it, overriding any variables it specifies */
config_directory[0] = '\0';
fill_pathname_application_special(config_directory,
sizeof(config_directory),
APPLICATION_SPECIAL_DIRECTORY_CONFIG);
fill_pathname_join_special_ext(switchres_ini_override_file,
config_directory, core_name, core_name,
".switchres.ini", sizeof(switchres_ini_override_file));
if (path_is_valid(switchres_ini_override_file))
{
RARCH_LOG("[CRT]: Loading switchres.ini core override file from %s \n", switchres_ini_override_file);
sr_load_ini(switchres_ini_override_file);
ini_overrides_loaded = true;
}
/* Next up we load directory overrides, if any */
fill_pathname_join_special_ext(switchres_ini_override_file,
config_directory, core_name, content_dir,
".switchres.ini", sizeof(switchres_ini_override_file));
if (path_is_valid(switchres_ini_override_file))
{
RARCH_LOG("[CRT]: Loading switchres.ini content directory override file from %s \n", switchres_ini_override_file);
sr_load_ini(switchres_ini_override_file);
ini_overrides_loaded = true;
}
}
}
}
void get_modeline_for_kms(videocrt_switch_t *p_switch, sr_mode* srm)
{
RARCH_LOG("[SUBS] Setting video_st->crt_switch_st\n");
p_switch->clock = srm->pclock / 1000;
p_switch->hdisplay = srm->width;
p_switch->hsync_start = srm->hbegin;
p_switch->hsync_end = srm->hend;
p_switch->htotal = srm->htotal;
p_switch->vdisplay = srm->height;
p_switch->vsync_start = srm->vbegin;
p_switch->vsync_end = srm->vend;
p_switch->vtotal = srm->vtotal;
p_switch->vrefresh = srm->refresh;
p_switch->hskew = 0;
p_switch->vscan = 0;
p_switch->interlace = srm->interlace;
p_switch->doublescan = srm->doublescan;
p_switch->hsync = srm->hsync;
p_switch->vsync = srm->vsync;
}
/* only used for RPi3 */
#if defined(HAVE_VIDEOCORE)
static void crt_rpi_switch(videocrt_switch_t *p_switch,
int width, int height, float hz,
int xoffset, int native_width)
{
int w;
char buffer[1024];
VCHI_INSTANCE_T vchi_instance;
VCHI_CONNECTION_T *vchi_connection = NULL;
static char output[250] = {0};
static char output1[250] = {0};
static char output2[250] = {0};
static char set_hdmi[250] = {0};
static char set_hdmi_timing[250] = {0};
int i = 0;
int hfp = 0;
int hsp = 0;
int hbp = 0;
int vfp = 0;
int vsp = 0;
int vbp = 0;
int hmax = 0;
int vmax = 0;
int pdefault = 8;
int pwidth = 0;
int ip_flag = 0;
float roundw = 0.0f;
float roundh = 0.0f;
float pixel_clock = 0.0f;
int xscale = 1;
int yscale = 1;
if (height > 300)
height = height/2;
/* set core refresh from hz */
video_monitor_set_refresh_rate(hz);
set_aspect(p_switch, width,
height, width, height,
(float)1, (float)1, false);
w = width;
while (w < 1920)
w = w+width;
if (w > 2000)
w =w- width;
width = w;
crt_aspect_ratio_switch(p_switch, width,height,width,height);
/* following code is the mode line generator */
hfp = ((width * 0.044) + (width / 112));
hbp = ((width * 0.172) + (width /64));
hsp = (width * 0.117);
if (height < 241)
vmax = 261;
if (height < 241 && hz > 56 && hz < 58)
vmax = 280;
if (height < 241 && hz < 55)
vmax = 313;
if (height > 250 && height < 260 && hz > 54)
vmax = 296;
if (height > 250 && height < 260 && hz > 52 && hz < 54)
vmax = 285;
if (height > 250 && height < 260 && hz < 52)
vmax = 313;
if (height > 260 && height < 300)
vmax = 318;
if (height > 400 && hz > 56)
vmax = 533;
if (height > 520 && hz < 57)
vmax = 580;
if (height > 300 && hz < 56)
vmax = 615;
if (height > 500 && hz < 56)
vmax = 624;
if (height > 300)
pdefault = pdefault * 2;
vfp = (height + ((vmax - height) / 2) - pdefault) - height;
if (height < 300)
vsp = vfp + 3; /* needs to be 3 for progressive */
if (height > 300)
vsp = vfp + 6; /* needs to be 6 for interlaced */
vsp = 3;
vbp = (vmax-height)-vsp-vfp;
hmax = width+hfp+hsp+hbp;
if (height < 300)
{
pixel_clock = (hmax * vmax * hz) ;
ip_flag = 0;
}
if (height > 300)
{
pixel_clock = (hmax * vmax * (hz/2)) /2 ;
ip_flag = 1;
}
/* above code is the modeline generator */
snprintf(set_hdmi_timing, sizeof(set_hdmi_timing),
"hdmi_timings %d 1 %d %d %d %d 1 %d %d %d 0 0 0 %f %d %f 1 ",
width, hfp, hsp, hbp, height, vfp,vsp, vbp,
hz, ip_flag, pixel_clock);
vcos_init();
vchi_initialise(&vchi_instance);
vchi_connect(NULL, 0, vchi_instance);
vc_vchi_gencmd_init(vchi_instance, &vchi_connection, 1);
vc_gencmd(buffer, sizeof(buffer), set_hdmi_timing);
vc_gencmd_stop();
vchi_disconnect(vchi_instance);
snprintf(output1, sizeof(output1),
"tvservice -e \"DMT 87\" > /dev/null");
system(output1);
snprintf(output2, sizeof(output1),
"fbset -g %d %d %d %d 24 > /dev/null",
width, height, width, height);
system(output2);
crt_switch_driver_refresh();
}
#endif