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vdisp/vulkan_sdl3: opt to set SDL hints

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This commit is contained in:
Martin Pulec
2026-01-06 09:54:21 +01:00
parent 7392718662
commit 55b51637d2
1 changed files with 15 additions and 1 deletions
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16
src/video_display/vulkan/vulkan_sdl3.cpp
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@@ -6,7 +6,7 @@
* @author Martin Bela <492789@mail.muni.cz>
*/
/*
* Copyright (c) 2018-2025 CESNET
* Copyright (c) 2018-2026 CESNET, zájmové sdružení právnických osob
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -49,6 +49,7 @@
#include <cstdio> // for sscanf
#include <cstdlib> // for calloc
#include <cstring> // for strchr, strcmp
#include <map> // for map
#include "debug.h"
#include "host.h"
@@ -486,6 +487,7 @@ void show_help() {
col() << SBOLD("\t pos=<x>,<y>") << " - set window position\n";
col() << SBOLD("\t size=<W>x<H>") << " - set window size\n";
col() << SBOLD("\twindow_flags=<f>") << " - flags to be passed to SDL_CreateWindow (use prefix 0x for hex)\n";
col() << SBOLD("\thint=<key>=<val>") << " - set SDL hint (eg. SDL_VIDEO_WAYLAND_PREFER_LIBDECOR=0): hint can be used repeatedly\n";
print_gpus();
@@ -607,6 +609,7 @@ struct command_line_arguments {
uint32_t window_flags = 0 ; ///< user requested flags
uint32_t gpu_idx = vkd::no_gpu_selected;
std::string driver{};
std::map<std::string, std::string> hints;
};
bool parse_command_line_arguments(command_line_arguments& args, state_vulkan_sdl3& s, char *fmt) {
@@ -687,6 +690,12 @@ bool parse_command_line_arguments(command_line_arguments& args, state_vulkan_sdl
} else if (IS_KEY_PREFIX(token, "window_flags")) {
token = strchr(token, '=') + 1;
args.window_flags |= cstoi(strchr(token, '=') + 1);
} else if (IS_KEY_PREFIX(token, "hint") && strchr(token, '=') != strrchr(token, '=')) {
char *key = strchr(token, '=') + 1;
char *val = strchr(key, '=');
*val = '\0';
val++;
args.hints[key] = val;
} else {
LOG(LOG_LEVEL_ERROR) << wrong_option_msg << token << '\n';
return false;
@@ -793,6 +802,11 @@ void* display_vulkan_init(module* parent, const char* fmt, unsigned int flags) {
if (!args.driver.empty()) {
SDL_CHECK(SDL_SetHint(SDL_HINT_VIDEO_DRIVER, args.driver.c_str()));
}
for (auto &it : args.hints) {
SDL_CHECK(SDL_SetHint(it.first.c_str(), it.second.c_str()));
MSG(INFO, "Setting %s to %s\n", it.first.c_str(), it.second.c_str());
}
bool ret = SDL_InitSubSystem(SDL_INIT_VIDEO | SDL_INIT_EVENTS);
if (!ret) {
log_msg(LOG_LEVEL_ERROR, "Unable to initialize SDL3: %s\n", SDL_GetError());