// Initialises the video subsystem.
// To prevent needless screen flickering, config is compared with cache
// to see if anything changed. If not, don't recreate the screen.
void GraphicsInitialize(GraphicsDevice *g, const bool force)
{
#ifdef __GCWZERO__
int sdl_flags = SDL_HWSURFACE | SDL_TRIPLEBUF;
#else
int sdl_flags = SDL_SWSURFACE;
#endif
unsigned int w, h = 0;
unsigned int rw, rh;
if (g->IsInitialized && !g->cachedConfig.needRestart)
{
return;
}
if (!g->IsWindowInitialized)
{
/* only do this the first time */
char title[32];
debug(D_NORMAL, "setting caption and icon...\n");
sprintf(title, "C-Dogs SDL %s%s",
g->cachedConfig.IsEditor ? "Editor " : "",
CDOGS_SDL_VERSION);
SDL_WM_SetCaption(title, NULL);
char buf[CDOGS_PATH_MAX];
GetDataFilePath(buf, "cdogs_icon.bmp");
g->icon = SDL_LoadBMP(buf);
SDL_WM_SetIcon(g->icon, NULL);
AddSupportedGraphicsModes(g);
}
g->IsInitialized = false;
sdl_flags |= g->cachedConfig.IsEditor ? SDL_RESIZABLE : 0;
if (g->cachedConfig.Fullscreen)
{
sdl_flags |= SDL_FULLSCREEN;
}
rw = w = g->cachedConfig.Res.x;
rh = h = g->cachedConfig.Res.y;
if (g->cachedConfig.ScaleFactor > 1)
{
rw *= g->cachedConfig.ScaleFactor;
rh *= g->cachedConfig.ScaleFactor;
}
if (!force && !g->cachedConfig.IsEditor)
{
g->modeIndex = FindValidMode(g, w, h, g->cachedConfig.ScaleFactor);
if (g->modeIndex == -1)
{
g->modeIndex = 0;
printf("!!! Invalid Video Mode %dx%d\n", w, h);
return;
}
}
printf("Graphics mode:\t%dx%d %dx (actual %dx%d)\n",
w, h, g->cachedConfig.ScaleFactor, rw, rh);
SDL_FreeSurface(g->screen);
g->screen = SDL_SetVideoMode(rw, rh, 32, sdl_flags);
if (g->screen == NULL)
{
printf("ERROR: InitVideo: %s\n", SDL_GetError());
return;
}
SDL_PixelFormat *f = g->screen->format;
g->Amask = -1 & ~(f->Rmask | f->Gmask | f->Bmask);
Uint32 aMask = g->Amask;
g->Ashift = 0;
while (aMask != 0xff)
{
g->Ashift += 8;
aMask >>= 8;
}
CFREE(g->buf);
CCALLOC(g->buf, GraphicsGetMemSize(&g->cachedConfig));
CFREE(g->bkg);
CCALLOC(g->bkg, GraphicsGetMemSize(&g->cachedConfig));
debug(D_NORMAL, "Changed video mode...\n");
GraphicsSetBlitClip(
g, 0, 0, g->cachedConfig.Res.x - 1, g->cachedConfig.Res.y - 1);
debug(D_NORMAL, "Internal dimensions:\t%dx%d\n",
g->cachedConfig.Res.x, g->cachedConfig.Res.y);
g->IsInitialized = true;
g->IsWindowInitialized = true;
g->cachedConfig.Res.x = w;
g->cachedConfig.Res.y = h;
g->cachedConfig.needRestart = false;
}
void GraphicsInitialize(GraphicsDevice *g)
{
if (g->IsInitialized && !g->cachedConfig.RestartFlags)
{
return;
}
if (!g->IsWindowInitialized)
{
char buf[CDOGS_PATH_MAX];
GetDataFilePath(buf, "cdogs_icon.bmp");
g->icon = IMG_Load(buf);
AddSupportedGraphicsModes(g);
g->IsWindowInitialized = true;
}
g->IsInitialized = false;
const int w = g->cachedConfig.Res.x;
const int h = g->cachedConfig.Res.y;
const bool initRenderer =
!!(g->cachedConfig.RestartFlags & RESTART_RESOLUTION);
const bool initTextures =
!!(g->cachedConfig.RestartFlags &
(RESTART_RESOLUTION | RESTART_SCALE_MODE));
const bool initBrightness =
!!(g->cachedConfig.RestartFlags &
(RESTART_RESOLUTION | RESTART_SCALE_MODE | RESTART_BRIGHTNESS));
if (initRenderer)
{
Uint32 sdlFlags = SDL_WINDOW_RESIZABLE;
if (g->cachedConfig.Fullscreen)
{
sdlFlags |= SDL_WINDOW_FULLSCREEN;
}
LOG(LM_GFX, LL_INFO, "graphics mode(%dx%d %dx)",
w, h, g->cachedConfig.ScaleFactor);
// Get the previous window's size and recreate it
Vec2i windowSize = Vec2iNew(
w * g->cachedConfig.ScaleFactor, h * g->cachedConfig.ScaleFactor);
if (g->window)
{
SDL_GetWindowSize(g->window, &windowSize.x, &windowSize.y);
}
LOG(LM_GFX, LL_DEBUG, "destroying previous renderer");
SDL_DestroyTexture(g->screen);
SDL_DestroyTexture(g->bkg);
SDL_DestroyTexture(g->brightnessOverlay);
SDL_DestroyRenderer(g->renderer);
SDL_FreeFormat(g->Format);
SDL_DestroyWindow(g->window);
LOG(LM_GFX, LL_DEBUG, "creating window %dx%d flags(%X)",
windowSize.x, windowSize.y, sdlFlags);
if (SDL_CreateWindowAndRenderer(
windowSize.x, windowSize.y, sdlFlags,
&g->window, &g->renderer) == -1 ||
g->window == NULL || g->renderer == NULL)
{
LOG(LM_GFX, LL_ERROR, "cannot create window or renderer: %s",
SDL_GetError());
return;
}
char title[32];
sprintf(title, "C-Dogs SDL %s%s",
g->cachedConfig.IsEditor ? "Editor " : "",
CDOGS_SDL_VERSION);
LOG(LM_GFX, LL_DEBUG, "setting title(%s) and icon", title);
SDL_SetWindowTitle(g->window, title);
SDL_SetWindowIcon(g->window, g->icon);
g->Format = SDL_AllocFormat(SDL_PIXELFORMAT_ARGB8888);
if (SDL_RenderSetLogicalSize(g->renderer, w, h) != 0)
{
LOG(LM_GFX, LL_ERROR, "cannot set renderer logical size: %s",
SDL_GetError());
return;
}
GraphicsSetBlitClip(
g, 0, 0, g->cachedConfig.Res.x - 1, g->cachedConfig.Res.y - 1);
}
if (initTextures)
{
if (!initRenderer)
{
SDL_DestroyTexture(g->screen);
SDL_DestroyTexture(g->bkg);
SDL_DestroyTexture(g->brightnessOverlay);
}
// Set render scale mode
const char *renderScaleQuality = "nearest";
switch ((ScaleMode)ConfigGetEnum(&gConfig, "Graphics.ScaleMode"))
{
case SCALE_MODE_NN:
renderScaleQuality = "nearest";
break;
case SCALE_MODE_BILINEAR:
renderScaleQuality = "linear";
break;
default:
CASSERT(false, "unknown scale mode");
break;
}
LOG(LM_GFX, LL_DEBUG, "setting scale quality %s", renderScaleQuality);
if (!SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, renderScaleQuality))
{
LOG(LM_GFX, LL_WARN, "cannot set render quality hint: %s",
SDL_GetError());
}
g->screen = CreateTexture(
g->renderer, SDL_TEXTUREACCESS_STREAMING, Vec2iNew(w, h),
SDL_BLENDMODE_BLEND, 255);
if (g->screen == NULL)
{
return;
}
CFREE(g->buf);
CCALLOC(g->buf, GraphicsGetMemSize(&g->cachedConfig));
g->bkg = CreateTexture(
g->renderer, SDL_TEXTUREACCESS_STATIC, Vec2iNew(w, h),
SDL_BLENDMODE_NONE, 255);
if (g->bkg == NULL)
{
return;
}
}
if (initBrightness)
{
if (!initRenderer && !initTextures)
{
SDL_DestroyTexture(g->brightnessOverlay);
}
const int brightness = ConfigGetInt(&gConfig, "Graphics.Brightness");
// Alpha is approximately 50% max
const Uint8 alpha = (Uint8)(brightness > 0 ? brightness : -brightness) * 13;
g->brightnessOverlay = CreateTexture(
g->renderer, SDL_TEXTUREACCESS_STATIC, Vec2iNew(w, h),
SDL_BLENDMODE_BLEND, alpha);
if (g->brightnessOverlay == NULL)
{
return;
}
const color_t overlayColour = brightness > 0 ? colorWhite : colorBlack;
DrawRectangle(g, Vec2iZero(), g->cachedConfig.Res, overlayColour, 0);
SDL_UpdateTexture(
g->brightnessOverlay, NULL, g->buf,
g->cachedConfig.Res.x * sizeof(Uint32));
memset(g->buf, 0, GraphicsGetMemSize(&g->cachedConfig));
g->cachedConfig.Brightness = brightness;
}
g->IsInitialized = true;
g->cachedConfig.Res.x = w;
g->cachedConfig.Res.y = h;
g->cachedConfig.RestartFlags = 0;
}
// Initialises the video subsystem.
// To prevent needless screen flickering, config is compared with cache
// to see if anything changed. If not, don't recreate the screen.
void GraphicsInitialize(
GraphicsDevice *device, GraphicsConfig *config, TPalette palette,
int force)
{
int sdl_flags = 0;
unsigned int w, h = 0;
unsigned int rw, rh;
if (!IsRestartRequiredForConfig(device, config))
{
return;
}
if (!device->IsWindowInitialized)
{
/* only do this the first time */
char title[32];
debug(D_NORMAL, "setting caption and icon...\n");
sprintf(title, "C-Dogs SDL %s%s",
config->IsEditor ? "Editor " : "",
CDOGS_SDL_VERSION);
SDL_WM_SetCaption(title, NULL);
device->icon = SDL_LoadBMP(GetDataFilePath("cdogs_icon.bmp"));
SDL_WM_SetIcon(device->icon, NULL);
AddSupportedGraphicsModes(device);
}
device->IsInitialized = 0;
sdl_flags |= SDL_SWSURFACE;
sdl_flags |= config->IsEditor ? SDL_RESIZABLE : 0;
if (config->Fullscreen)
{
sdl_flags |= SDL_FULLSCREEN;
}
rw = w = config->Res.x;
rh = h = config->Res.y;
if (config->ScaleFactor > 1)
{
rw *= config->ScaleFactor;
rh *= config->ScaleFactor;
}
if (!force && !config->IsEditor)
{
device->modeIndex = FindValidMode(device, w, h, config->ScaleFactor);
if (device->modeIndex == -1)
{
device->modeIndex = 0;
printf("!!! Invalid Video Mode %dx%d\n", w, h);
return;
}
}
else
{
printf("\n");
printf(" BIG FAT WARNING: If this blows up in your face,\n");
printf(" and mutilates your cat, please don't cry.\n");
printf("\n");
}
printf("Graphics mode:\t%dx%d %dx (actual %dx%d)\n",
w, h, config->ScaleFactor, rw, rh);
SDL_FreeSurface(device->screen);
device->screen = SDL_SetVideoMode(rw, rh, 32, sdl_flags);
if (device->screen == NULL)
{
printf("ERROR: InitVideo: %s\n", SDL_GetError());
return;
}
SDL_PixelFormat *f = device->screen->format;
device->Amask = -1 & ~(f->Rmask | f->Gmask | f->Bmask);
Uint32 aMask = device->Amask;
device->Ashift = 0;
while (aMask != 0xff)
{
device->Ashift += 8;
aMask >>= 8;
}
CFREE(device->buf);
CCALLOC(device->buf, GraphicsGetMemSize(config));
CFREE(device->bkg);
CCALLOC(device->bkg, GraphicsGetMemSize(config));
debug(D_NORMAL, "Changed video mode...\n");
GraphicsSetBlitClip(
device,
0, 0, config->Res.x - 1,config->Res.y - 1);
debug(D_NORMAL, "Internal dimensions:\t%dx%d\n",
config->Res.x, config->Res.y);
device->IsInitialized = 1;
device->IsWindowInitialized = 1;
device->cachedConfig = *config;
device->cachedConfig.Res.x = w;
device->cachedConfig.Res.y = h;
CDogsSetPalette(palette);
}
