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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include "WindowManagerHelper.h"
#include <SDL_video.h>
#include "Game/GameVersion.h"
#include "Rendering/GlobalRendering.h"
#include "Rendering/Textures/Bitmap.h"
#include "System/Log/ILog.h"
namespace WindowManagerHelper {
struct WindowIcon {
// do not rely on static (de)init, pool might not yet exist or be destructed first
uint8_t bmpMem[sizeof(CBitmap)] = {0};
CBitmap* bmp = nullptr;
SDL_Surface* surf = nullptr;
};
// LuaUnsyncedCtrl only
void SetIcon(CBitmap* bmp) {
if (SpringVersion::IsHeadless())
return;
// 24bit RGB or 32bit RGBA
if (((bmp->channels != 3) && (bmp->channels != 4))
//#ifdef _WIN32
// on windows, the icon has to be 32x32
|| (bmp->xsize != 32)
|| (bmp->ysize != 32)
//#endif
) {
LOG_L(L_WARNING, "[WindowManager::%s] icon-format has to be RGB or RGBA, and 32x32 pixels on Windows", __func__);
return;
}
// supplied bitmap is usable as icon, keep it
SetIconSurface(globalRendering->GetWindow(0), bmp);
}
bool SetIconSurface(SDL_Window* win, CBitmap* bmp) {
static WindowIcon windowIcon;
if (windowIcon.bmp == nullptr)
windowIcon.bmp = new (windowIcon.bmpMem) CBitmap();
if (bmp == nullptr) {
// only reached on exit
SDL_FreeSurface(windowIcon.surf);
SDL_SetWindowIcon(win, windowIcon.surf = nullptr);
*(windowIcon.bmp) = {};
return false;
}
SDL_Surface* surf = bmp->CreateSDLSurface();
if (surf == nullptr) {
// keep any previous surface in case of failure
LOG_L(L_WARNING, "[WindowManagerHelper::%s] failed to create SDL surface, reason: %s", __func__, SDL_GetError());
return false;
}
SDL_FreeSurface(windowIcon.surf);
SDL_SetWindowIcon(win, windowIcon.surf = surf);
*(windowIcon.bmp) = std::move(*bmp);
return true;
}
}; // namespace WindowManagerHelper
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