mirror of
https://github.com/TerryCavanagh/VVVVVV.git
synced 2024-06-01 18:43:33 +02:00
379 lines
8.4 KiB
C++
379 lines
8.4 KiB
C++
#include "Screen.h"
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#include <SDL.h>
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#include "FileSystemUtils.h"
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#include "Game.h"
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#include "GraphicsUtil.h"
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#include "Vlogging.h"
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// Used to create the window icon
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extern "C"
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{
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extern unsigned lodepng_decode24(
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unsigned char** out,
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unsigned* w,
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unsigned* h,
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const unsigned char* in,
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size_t insize
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);
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}
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ScreenSettings::ScreenSettings(void)
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{
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windowWidth = 320;
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windowHeight = 240;
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fullscreen = false;
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useVsync = true; // Now that uncapped is the default...
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stretch = 0;
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linearFilter = false;
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badSignal = false;
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}
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void Screen::init(const ScreenSettings& settings)
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{
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m_window = NULL;
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m_renderer = NULL;
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m_screenTexture = NULL;
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m_screen = NULL;
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isWindowed = !settings.fullscreen;
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stretchMode = settings.stretch;
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isFiltered = settings.linearFilter;
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vsync = settings.useVsync;
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filterSubrect.x = 1;
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filterSubrect.y = 1;
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filterSubrect.w = 318;
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filterSubrect.h = 238;
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SDL_SetHintWithPriority(
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SDL_HINT_RENDER_SCALE_QUALITY,
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isFiltered ? "linear" : "nearest",
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SDL_HINT_OVERRIDE
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);
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SDL_SetHintWithPriority(
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SDL_HINT_RENDER_VSYNC,
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vsync ? "1" : "0",
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SDL_HINT_OVERRIDE
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);
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// Uncomment this next line when you need to debug -flibit
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// SDL_SetHintWithPriority(SDL_HINT_RENDER_DRIVER, "software", SDL_HINT_OVERRIDE);
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SDL_CreateWindowAndRenderer(
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640,
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480,
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SDL_WINDOW_HIDDEN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI,
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&m_window,
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&m_renderer
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);
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SDL_SetWindowTitle(m_window, "VVVVVV");
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LoadIcon();
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// FIXME: This surface should be the actual backbuffer! -flibit
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m_screen = SDL_CreateRGBSurface(
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0,
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320,
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240,
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32,
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0x00FF0000,
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0x0000FF00,
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0x000000FF,
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0xFF000000
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);
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m_screenTexture = SDL_CreateTexture(
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m_renderer,
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SDL_PIXELFORMAT_ARGB8888,
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SDL_TEXTUREACCESS_STREAMING,
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320,
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240
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);
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badSignalEffect = settings.badSignal;
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ResizeScreen(settings.windowWidth, settings.windowHeight);
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}
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void Screen::destroy(void)
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{
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#define X(CLEANUP, POINTER) \
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CLEANUP(POINTER); \
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POINTER = NULL;
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/* Order matters! */
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X(SDL_DestroyTexture, m_screenTexture);
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X(SDL_FreeSurface, m_screen);
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X(SDL_DestroyRenderer, m_renderer);
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X(SDL_DestroyWindow, m_window);
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#undef X
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}
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void Screen::GetSettings(ScreenSettings* settings)
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{
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int width, height;
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GetWindowSize(&width, &height);
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settings->windowWidth = width;
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settings->windowHeight = height;
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settings->fullscreen = !isWindowed;
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settings->useVsync = vsync;
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settings->stretch = stretchMode;
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settings->linearFilter = isFiltered;
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settings->badSignal = badSignalEffect;
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}
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void Screen::LoadIcon(void)
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{
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#ifndef __APPLE__
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unsigned char *fileIn;
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size_t length;
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unsigned char *data;
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unsigned int width, height;
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FILESYSTEM_loadAssetToMemory("VVVVVV.png", &fileIn, &length, false);
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lodepng_decode24(&data, &width, &height, fileIn, length);
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FILESYSTEM_freeMemory(&fileIn);
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SDL_Surface *icon = SDL_CreateRGBSurfaceWithFormatFrom(
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data,
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width,
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height,
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24,
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width * 3,
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SDL_PIXELFORMAT_RGB24
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);
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SDL_SetWindowIcon(m_window, icon);
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SDL_FreeSurface(icon);
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SDL_free(data);
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#endif /* __APPLE__ */
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}
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void Screen::ResizeScreen(int x, int y)
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{
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static int resX = 320;
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static int resY = 240;
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if (x != -1 && y != -1)
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{
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// This is a user resize!
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resX = x;
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resY = y;
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}
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if(!isWindowed)
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{
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int result = SDL_SetWindowFullscreen(m_window, SDL_WINDOW_FULLSCREEN_DESKTOP);
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if (result != 0)
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{
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vlog_error("Error: could not set the game to fullscreen mode: %s", SDL_GetError());
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return;
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}
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}
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else
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{
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int result = SDL_SetWindowFullscreen(m_window, 0);
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if (result != 0)
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{
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vlog_error("Error: could not set the game to windowed mode: %s", SDL_GetError());
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return;
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}
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if (x != -1 && y != -1)
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{
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SDL_SetWindowSize(m_window, resX, resY);
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SDL_SetWindowPosition(m_window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
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}
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}
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if (stretchMode == 1)
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{
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int winX, winY;
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GetWindowSize(&winX, &winY);
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int result = SDL_RenderSetLogicalSize(m_renderer, winX, winY);
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if (result != 0)
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{
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vlog_error("Error: could not set logical size: %s", SDL_GetError());
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return;
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}
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result = SDL_RenderSetIntegerScale(m_renderer, SDL_FALSE);
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if (result != 0)
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{
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vlog_error("Error: could not set scale: %s", SDL_GetError());
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return;
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}
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}
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else
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{
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SDL_RenderSetLogicalSize(m_renderer, 320, 240);
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int result = SDL_RenderSetIntegerScale(m_renderer, (SDL_bool) (stretchMode == 2));
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if (result != 0)
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{
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vlog_error("Error: could not set scale: %s", SDL_GetError());
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return;
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}
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}
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SDL_ShowWindow(m_window);
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}
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void Screen::ResizeToNearestMultiple(void)
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{
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int w, h;
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GetWindowSize(&w, &h);
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// Check aspect ratio first
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bool using_width;
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int usethisdimension, usethisratio;
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if ((float) w / (float) h > 4.0 / 3.0)
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{
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// Width is bigger, so it's limited by height
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usethisdimension = h;
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usethisratio = 240;
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using_width = false;
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}
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else
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{
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// Height is bigger, so it's limited by width. Or we're exactly 4:3 already
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usethisdimension = w;
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usethisratio = 320;
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using_width = true;
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}
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int floor = (usethisdimension / usethisratio) * usethisratio;
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int ceiling = floor + usethisratio;
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int final_dimension;
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if (usethisdimension - floor < ceiling - usethisdimension)
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{
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// Floor is nearest
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final_dimension = floor;
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}
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else
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{
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// Ceiling is nearest. Or we're exactly on a multiple already
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final_dimension = ceiling;
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}
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if (final_dimension == 0)
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{
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// We're way too small!
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ResizeScreen(320, 240);
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return;
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}
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if (using_width)
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{
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ResizeScreen(final_dimension, final_dimension / 4 * 3);
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}
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else
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{
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ResizeScreen(final_dimension * 4 / 3, final_dimension);
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}
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}
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void Screen::GetWindowSize(int* x, int* y)
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{
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SDL_GetRendererOutputSize(m_renderer, x, y);
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}
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void Screen::UpdateScreen(SDL_Surface* buffer, SDL_Rect* rect )
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{
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if((buffer == NULL) && (m_screen == NULL) )
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{
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return;
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}
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if(badSignalEffect)
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{
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buffer = ApplyFilter(buffer);
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}
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ClearSurface(m_screen);
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BlitSurfaceStandard(buffer,NULL,m_screen,rect);
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if(badSignalEffect)
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{
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SDL_FreeSurface(buffer);
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}
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}
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const SDL_PixelFormat* Screen::GetFormat(void)
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{
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return m_screen->format;
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}
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void Screen::FlipScreen(const bool flipmode)
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{
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SDL_RendererFlip flip_flags;
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if (flipmode)
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{
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flip_flags = SDL_FLIP_VERTICAL;
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}
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else
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{
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flip_flags = SDL_FLIP_NONE;
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}
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SDL_UpdateTexture(
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m_screenTexture,
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NULL,
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m_screen->pixels,
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m_screen->pitch
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);
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SDL_RenderCopyEx(
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m_renderer,
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m_screenTexture,
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isFiltered ? &filterSubrect : NULL,
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NULL,
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0.0,
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NULL,
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flip_flags
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);
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SDL_RenderPresent(m_renderer);
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SDL_RenderClear(m_renderer);
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ClearSurface(m_screen);
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}
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void Screen::toggleFullScreen(void)
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{
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isWindowed = !isWindowed;
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ResizeScreen(-1, -1);
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if (game.currentmenuname == Menu::graphicoptions)
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{
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/* Recreate menu to update "resize to nearest" */
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game.createmenu(game.currentmenuname, true);
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}
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}
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void Screen::toggleStretchMode(void)
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{
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stretchMode = (stretchMode + 1) % 3;
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ResizeScreen(-1, -1);
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}
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void Screen::toggleLinearFilter(void)
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{
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isFiltered = !isFiltered;
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SDL_SetHintWithPriority(
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SDL_HINT_RENDER_SCALE_QUALITY,
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isFiltered ? "linear" : "nearest",
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SDL_HINT_OVERRIDE
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);
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SDL_DestroyTexture(m_screenTexture);
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m_screenTexture = SDL_CreateTexture(
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m_renderer,
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SDL_PIXELFORMAT_ARGB8888,
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SDL_TEXTUREACCESS_STREAMING,
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320,
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240
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);
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}
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void Screen::toggleVSync(void)
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{
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#if SDL_VERSION_ATLEAST(2, 0, 17)
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vsync = !vsync;
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SDL_RenderSetVSync(m_renderer, (int) vsync);
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#endif
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}
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