Max/kichikuou_system3-sdl2
1
0
Fork 0
mirror of https://github.com/kichikuou/system3-sdl2.git synced 2026-09-30 19:07:59 +03:00
Code Issues Packages Projects Releases Wiki Activity

Scanline screen effect

Browse Source 
It can be activated by the -scanline command line flag, system3.ini, or
the menubar on Windows. Effective especially for games with 200-line
screen mode, such as Little Vampire and Intruder.
This commit is contained in:
kichikuou
2023-04-09 18:23:42 +09:00
parent ec1dfbffcf
commit 7f6a085f56
7 changed files with 73 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/sys/ags.cpp
+49
View File
@@ -36,6 +36,28 @@ static SDL_Surface* display_surface;
box[n].ey = y2; \
}
namespace {
const uint32 SCANLINE_ALPHA = 0x38; // 0-255
SDL_Texture* create_scanline_texture(SDL_Renderer* renderer, int width, int height)
{
SDL_Surface* sf = SDL_CreateRGBSurfaceWithFormat(0, width, height, 32, SDL_PIXELFORMAT_ARGB8888);
for (int y = 0; y < height; y++) {
uint32* p = surface_line(sf, y);
uint32 v = y % 2 ? (SCANLINE_ALPHA << 24) : 0;
for (int x = 0; x < width; x++) {
p[x] = v;
}
}
SDL_Texture* tx = SDL_CreateTextureFromSurface(renderer, sf);
SDL_SetTextureBlendMode(tx, SDL_BLENDMODE_BLEND);
SDL_FreeSurface(sf);
return tx;
}
} // namespace
AGS::AGS(NACT* parent, const Config& config) : nact(parent), dirty(false)
{
// 画面サイズ
@@ -52,6 +74,7 @@ AGS::AGS(NACT* parent, const Config& config) : nact(parent), dirty(false)
SDL_SetWindowSize(g_window, window_width, window_height);
SDL_RenderSetLogicalSize(g_renderer, window_width, window_height);
sdlTexture = SDL_CreateTexture(g_renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STATIC, screen_width, screen_height); // TOOD: pixelformat?
scanline_texture = NULL;
// DIBSection 8bpp * 3 (表, 裏, メニュー)
for(int i = 0; i < 3; i++) {
@@ -358,6 +381,8 @@ AGS::AGS(NACT* parent, const Config& config) : nact(parent), dirty(false)
// マウスカーソル
cursor_color = 15;
cursor_index = 0;
set_scanline_mode(config.scanline);
}
AGS::~AGS()
@@ -527,10 +552,26 @@ void AGS::update_screen()
SDL_SetRenderDrawColor(g_renderer, 0, 0, 0, 255);
SDL_SetRenderDrawBlendMode(g_renderer, SDL_BLENDMODE_NONE);
}
if (scanline_texture)
SDL_RenderCopy(g_renderer, scanline_texture, NULL, NULL);
SDL_RenderPresent(g_renderer);
dirty = false;
}
void AGS::set_scanline_mode(bool enable)
{
if (enable && !scanline_texture) {
scanline_texture = create_scanline_texture(g_renderer, screen_width, screen_height);
dirty = true;
update_screen();
} else if (!enable && scanline_texture) {
SDL_DestroyTexture(scanline_texture);
scanline_texture = NULL;
dirty = true;
update_screen();
}
}
void AGS::save_screenshot(const char* path)
{
SDL_Surface* sf = SDL_CreateRGBSurface(0, screen_width, screen_height, 32, 0, 0, 0, 0);
@@ -539,6 +580,14 @@ void AGS::save_screenshot(const char* path)
SDL_BlitSurface(hBmpDest, &r, sf, NULL);
SDL_LockSurface(hBmpDest);
if (scanline_texture) {
SDL_Renderer* renderer = SDL_CreateSoftwareRenderer(sf);
SDL_Texture *tx = create_scanline_texture(renderer, screen_width, screen_height);
SDL_RenderCopy(renderer, tx, NULL, NULL);
SDL_DestroyTexture(tx);
SDL_DestroyRenderer(renderer);
}
if (SDL_SaveBMP(sf, path) != 0) {
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "system3",
SDL_GetError(), g_window);