archives/gates_of_skeldal
2
0
Fork 0
mirror of https://github.com/ondra-novak/gates_of_skeldal.git synced 2025-07-05 14:10:27 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

new filters, cztable, fix crash in enemy drawing

Browse source
This commit is contained in:
Ondřej Novák 2025-02-06 12:05:17 +01:00
parent 83933755df
commit a8556070ad
10 changed files with 176 additions and 98 deletions
Download patch file Download diff file Expand all files Collapse all files

84
platform/sdl/sdl_context.cpp
View file

@ -53,8 +53,18 @@ SDLContext::SDLContext() {
}
void SDLContext::generateCRTTexture(SDL_Renderer* renderer, SDL_Texture** texture, int width, int height) {
void SDLContext::generateCRTTexture(SDL_Renderer* renderer, SDL_Texture** texture, int width, int height, CrtFilterType type) {
if (type == CrtFilterType::autoselect) {
if (height > 1680) type = CrtFilterType::rgb_matrix_3;
else if (height >= 1200) type = CrtFilterType::scanlines_2;
else type = CrtFilterType::scanlines;
}
if (type == CrtFilterType::scanlines || type == CrtFilterType::scanlines_2) {
width = 32;
}
// Vytvoř novou texturu ve správné velikosti
*texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_RGBA8888, SDL_TEXTUREACCESS_STREAMING, width, height);
SDL_SetTextureBlendMode(*texture, SDL_BLENDMODE_MUL);
@ -65,19 +75,67 @@ void SDLContext::generateCRTTexture(SDL_Renderer* renderer, SDL_Texture** textur
int pitch;
SDL_LockTexture(*texture, nullptr, &pixels, &pitch);
bool wider_lines = height > 1350;
Uint32* pixelArray = (Uint32*)pixels;
Uint32 darkPixel = wider_lines?0x808080FF:0xA0A0A0FF;
Uint32 transparentPixel = wider_lines ?0xFFFFFFE0:0xFFFFFFC0;
int step = wider_lines ?3:2;
for (int y = 0; y < height; y++) {
Uint32 color = (y % step == 0) ? darkPixel : transparentPixel;
for (int x = 0; x < width; x++) {
pixelArray[y * (pitch / 4) + x] = color;
if (type == CrtFilterType::scanlines) {
Uint32 darkPixel = 0xA0A0A0FF;
Uint32 transparentPixel = 0xFFFFFFC0;
for (int y = 0; y < height; y++) {
Uint32 color = ((y & 1)== 0) ? darkPixel : transparentPixel;
for (int x = 0; x < width; x++) {
pixelArray[y * (pitch / 4) + x] = color;
}
}
}
else if (type == CrtFilterType::scanlines_2) {
Uint32 darkPixel = 0x808080FF;
Uint32 transparentPixel = 0xFFFFFFE0;
for (int y = 0; y < height; y++) {
Uint32 color = (y % 3== 2) ? darkPixel : transparentPixel;
for (int x = 0; x < width; x++) {
pixelArray[y * (pitch / 4) + x] = color;
}
}
} else {
static Uint32 red_pixel = 0xFF8080A0;
static Uint32 green_pixel = 0x80FF80A0;
static Uint32 blue_pixel = 0x8080FFA0;
static Uint32 dark_pixel = 0x000000C0;
for (int y = 2; y < height; y++) {
if (type == CrtFilterType::rgb_matrix_2) {
for (int x = 2; x < width; x+=3) {
Uint32 *pos = pixelArray+y*(pitch/4)+x-2;
if ((y % 3) == 2) {
pos[0] = pos[1] = pos[2] = dark_pixel;
} else {
pos[0] = red_pixel;
pos[1] = green_pixel;
pos[2] = blue_pixel;
}
}
} else {
for (int x = 2; x < width; x+=3) {
Uint32 *pos = pixelArray+y*(pitch/4)+x-2;
if ((y & 3) == 3) {
pos[0] = pos[1] = pos[2] = dark_pixel;
} else {
pos[0] = red_pixel;
pos[1] = green_pixel;
pos[2] = blue_pixel;
}
}
}
}
}
// Odemkni texturu
SDL_UnlockTexture(*texture);
@ -97,7 +155,7 @@ void SDLContext::init_video(const VideoConfig &config, const char *title) {
int height = config.window_height;
aspect_x = config.aspect_x;
aspect_y = config.aspect_y;
crt_filter_enabled = config.crt_filter;
_crt_filter = config.crt_filter ;
_fullscreen_mode = config.fullscreen;
@ -370,10 +428,10 @@ void SDLContext::update_screen() {
SDL_SetTextureAlphaMod(_visible_texture, 255);
SDL_RenderCopy(_renderer.get(), _visible_texture, NULL, &winrc);
}
if (winrc.h > 900 && crt_filter_enabled) {
if (winrc.h >= 720 && _crt_filter != CrtFilterType::none) {
if (!_crt_effect) {
SDL_Texture *txt;
generateCRTTexture(_renderer.get(), &txt, 128, std::min<int>(1440, winrc.h));
generateCRTTexture(_renderer.get(), &txt, winrc.w, winrc.h, _crt_filter);
_crt_effect.reset(txt);
}
}