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Handle window size change (#163)

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Alexander Batalov 2022-10-04 13:15:54 +03:00 committed by GitHub
parent 624076ae9b
commit cce1bb223e
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 56 additions and 40 deletions
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96
src/core.cc
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@ -24,6 +24,8 @@
namespace fallout {
static void idleImpl();
static bool createRenderer(int width, int height);
static void destroyRenderer();
// 0x51E234
IdleFunc* _idle_func = NULL;
@ -1140,8 +1142,8 @@ void _GNW95_process_message()
windowRefreshAll(&_scr_size);
break;
case SDL_WINDOWEVENT_SIZE_CHANGED:
// TODO: Recreate gSdlSurface in case size really changed (i.e.
// not alt-tabbing in fullscreen mode).
destroyRenderer();
createRenderer(screenGetWidth(), screenGetHeight());
break;
case SDL_WINDOWEVENT_FOCUS_GAINED:
gProgramIsActive = true;
@ -1393,50 +1395,17 @@ int _GNW95_init_window(int width, int height, bool fullscreen)
return -1;
}
gSdlRenderer = SDL_CreateRenderer(gSdlWindow, -1, 0);
if (gSdlRenderer == NULL) {
goto err;
}
if (!createRenderer(width, height)) {
destroyRenderer();
if (SDL_RenderSetLogicalSize(gSdlRenderer, width, height) != 0) {
goto err;
}
SDL_DestroyWindow(gSdlWindow);
gSdlWindow = NULL;
gSdlTexture = SDL_CreateTexture(gSdlRenderer, SDL_PIXELFORMAT_RGB888, SDL_TEXTUREACCESS_STREAMING, width, height);
if (gSdlTexture == NULL) {
goto err;
}
Uint32 format;
if (SDL_QueryTexture(gSdlTexture, &format, NULL, NULL, NULL) != 0) {
goto err;
}
gSdlTextureSurface = SDL_CreateRGBSurfaceWithFormat(0, width, height, SDL_BITSPERPIXEL(format), format);
if (gSdlTextureSurface == NULL) {
goto err;
return -1;
}
}
return 0;
err:
if (gSdlTexture != NULL) {
SDL_DestroyTexture(gSdlTexture);
gSdlTexture = NULL;
}
if (gSdlRenderer != NULL) {
SDL_DestroyRenderer(gSdlRenderer);
gSdlRenderer = NULL;
}
if (gSdlWindow != NULL) {
SDL_DestroyWindow(gSdlWindow);
gSdlWindow = NULL;
}
return -1;
}
// calculate shift for mask
@ -1822,4 +1791,51 @@ static void idleImpl()
SDL_Delay(125);
}
static bool createRenderer(int width, int height)
{
gSdlRenderer = SDL_CreateRenderer(gSdlWindow, -1, 0);
if (gSdlRenderer == NULL) {
return false;
}
if (SDL_RenderSetLogicalSize(gSdlRenderer, width, height) != 0) {
return false;
}
gSdlTexture = SDL_CreateTexture(gSdlRenderer, SDL_PIXELFORMAT_RGB888, SDL_TEXTUREACCESS_STREAMING, width, height);
if (gSdlTexture == NULL) {
return false;
}
Uint32 format;
if (SDL_QueryTexture(gSdlTexture, &format, NULL, NULL, NULL) != 0) {
return false;
}
gSdlTextureSurface = SDL_CreateRGBSurfaceWithFormat(0, width, height, SDL_BITSPERPIXEL(format), format);
if (gSdlTextureSurface == NULL) {
return false;
}
return true;
}
static void destroyRenderer()
{
if (gSdlTextureSurface != NULL) {
SDL_FreeSurface(gSdlTextureSurface);
gSdlTextureSurface = NULL;
}
if (gSdlTexture != NULL) {
SDL_DestroyTexture(gSdlTexture);
gSdlTexture = NULL;
}
if (gSdlRenderer != NULL) {
SDL_DestroyRenderer(gSdlRenderer);
gSdlRenderer = NULL;
}
}
} // namespace fallout