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mirror of https://github.com/TerryCavanagh/VVVVVV.git synced 2024-06-02 19:13:31 +02:00
VVVVVV/desktop_version/src/Screen.cpp
Misa b3b001c2a8 Place GraphicsResources functions in header file
These are functions used in other files that are not on the
GraphicsResources class but are implemented inside the
GraphicsResources.cpp file. For some reason they were never put in the
GraphicsResources.h file until now, even though it's a perfectly good
header file to put them in.
2024-01-09 16:03:05 -08:00

392 lines
10 KiB
C++

#define GAMESCREEN_DEFINITION
#include "Screen.h"
#include <SDL.h>
#include "Alloc.h"
#include "Constants.h"
#include "Exit.h"
#include "FileSystemUtils.h"
#include "Game.h"
#include "Graphics.h"
#include "GraphicsUtil.h"
#ifndef __APPLE__
#include "GraphicsResources.h"
#endif
#include "InterimVersion.h"
#include "Render.h"
#include "Vlogging.h"
void ScreenSettings_default(struct ScreenSettings* _this)
{
_this->windowDisplay = 0;
_this->windowWidth = SCREEN_WIDTH_PIXELS * 2;
_this->windowHeight = SCREEN_HEIGHT_PIXELS * 2;
_this->fullscreen = false;
_this->useVsync = true; // Now that uncapped is the default...
_this->scalingMode = SCALING_INTEGER;
_this->linearFilter = false;
_this->badSignal = false;
}
void Screen::init(const struct ScreenSettings* settings)
{
m_window = NULL;
m_renderer = NULL;
windowDisplay = settings->windowDisplay;
windowWidth = settings->windowWidth;
windowHeight = settings->windowHeight;
isWindowed = !settings->fullscreen;
scalingMode = settings->scalingMode;
isFiltered = settings->linearFilter;
badSignalEffect = settings->badSignal;
vsync = settings->useVsync;
// Uncomment this next line when you need to debug -flibit
// SDL_SetHintWithPriority(SDL_HINT_RENDER_DRIVER, "software", SDL_HINT_OVERRIDE);
m_window = SDL_CreateWindow(
"VVVVVV",
SDL_WINDOWPOS_CENTERED_DISPLAY(windowDisplay),
SDL_WINDOWPOS_CENTERED_DISPLAY(windowDisplay),
SCREEN_WIDTH_PIXELS * 2,
SCREEN_HEIGHT_PIXELS * 2,
SDL_WINDOW_HIDDEN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI
);
if (m_window == NULL)
{
vlog_error("Could not create window: %s", SDL_GetError());
VVV_exit(1);
}
m_renderer = SDL_CreateRenderer(m_window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_TARGETTEXTURE);
if (m_renderer == NULL)
{
vlog_error("Could not create renderer: %s", SDL_GetError());
VVV_exit(1);
}
SDL_RenderSetVSync(m_renderer, (int) vsync);
#ifdef INTERIM_VERSION_EXISTS
/* Branch name limits are ill-defined but on GitHub it's ~256 chars
* ( https://stackoverflow.com/a/24014513/ ).
* Really though, just don't use super long branch names. */
char title[256];
SDL_snprintf(title, sizeof(title), "VVVVVV [%s]", BRANCH_NAME);
SDL_SetWindowTitle(m_window, title);
#else
SDL_SetWindowTitle(m_window, "VVVVVV");
#endif
SDL_SetWindowMinimumSize(m_window, SCREEN_WIDTH_PIXELS, SCREEN_HEIGHT_PIXELS);
LoadIcon();
ResizeScreen(windowWidth, windowHeight);
}
void Screen::destroy(void)
{
/* Order matters! */
VVV_freefunc(SDL_DestroyRenderer, m_renderer);
VVV_freefunc(SDL_DestroyWindow, m_window);
}
void Screen::GetSettings(struct ScreenSettings* settings)
{
windowDisplay = SDL_GetWindowDisplayIndex(m_window);
if (windowDisplay < 0)
{
vlog_error("Error: could not get display index: %s", SDL_GetError());
windowDisplay = 0;
}
settings->windowDisplay = windowDisplay;
settings->windowWidth = windowWidth;
settings->windowHeight = windowHeight;
settings->fullscreen = !isWindowed;
settings->useVsync = vsync;
settings->scalingMode = scalingMode;
settings->linearFilter = isFiltered;
settings->badSignal = badSignalEffect;
}
#ifdef __APPLE__
/* Apple doesn't like icons anymore... */
void Screen::LoadIcon(void)
{
}
#else
void Screen::LoadIcon(void)
{
SDL_Surface* icon = LoadImageSurface("VVVVVV.png");
if (icon == NULL)
{
return;
}
SDL_SetWindowIcon(m_window, icon);
VVV_freefunc(SDL_FreeSurface, icon);
}
#endif /* __APPLE__ */
void Screen::ResizeScreen(int x, int y)
{
windowDisplay = SDL_GetWindowDisplayIndex(m_window);
if (windowDisplay < 0)
{
vlog_error("Error: could not get display index: %s", SDL_GetError());
windowDisplay = 0;
}
if (x != -1 && y != -1)
{
// This is a user resize!
windowWidth = x;
windowHeight = y;
}
if (!isWindowed || isForcedFullscreen())
{
int result = SDL_SetWindowFullscreen(m_window, SDL_WINDOW_FULLSCREEN_DESKTOP);
recacheTextures();
if (result != 0)
{
vlog_error("Error: could not set the game to fullscreen mode: %s", SDL_GetError());
return;
}
}
else
{
int result = SDL_SetWindowFullscreen(m_window, 0);
if (result != 0)
{
vlog_error("Error: could not set the game to windowed mode: %s", SDL_GetError());
}
else if (x != -1 && y != -1)
{
SDL_SetWindowSize(m_window, windowWidth, windowHeight);
SDL_SetWindowPosition(
m_window,
SDL_WINDOWPOS_CENTERED_DISPLAY(windowDisplay),
SDL_WINDOWPOS_CENTERED_DISPLAY(windowDisplay)
);
}
recacheTextures();
}
}
void Screen::ResizeToNearestMultiple(void)
{
int w, h;
GetScreenSize(&w, &h);
// Check aspect ratio first
bool using_width;
int usethisdimension, usethisratio;
if ((float) w / (float) h > 4.0 / 3.0)
{
// Width is bigger, so it's limited by height
usethisdimension = h;
usethisratio = SCREEN_HEIGHT_PIXELS;
using_width = false;
}
else
{
// Height is bigger, so it's limited by width. Or we're exactly 4:3 already
usethisdimension = w;
usethisratio = SCREEN_WIDTH_PIXELS;
using_width = true;
}
int floor = (usethisdimension / usethisratio) * usethisratio;
int ceiling = floor + usethisratio;
int final_dimension;
if (usethisdimension - floor < ceiling - usethisdimension)
{
// Floor is nearest
final_dimension = floor;
}
else
{
// Ceiling is nearest. Or we're exactly on a multiple already
final_dimension = ceiling;
}
if (final_dimension == 0)
{
// We're way too small!
ResizeScreen(SCREEN_WIDTH_PIXELS, SCREEN_HEIGHT_PIXELS);
return;
}
if (using_width)
{
ResizeScreen(final_dimension, final_dimension / 4 * 3);
}
else
{
ResizeScreen(final_dimension * 4 / 3, final_dimension);
}
}
void Screen::GetScreenSize(int* x, int* y)
{
if (SDL_GetRendererOutputSize(m_renderer, x, y) != 0)
{
vlog_error("Could not get window size: %s", SDL_GetError());
/* Initialize to safe defaults */
*x = SCREEN_WIDTH_PIXELS;
*y = SCREEN_HEIGHT_PIXELS;
}
}
void Screen::UpdateScaling(void)
{
int width;
int height;
if (scalingMode == SCALING_STRETCH)
{
GetScreenSize(&width, &height);
}
else
{
width = SCREEN_WIDTH_PIXELS;
height = SCREEN_HEIGHT_PIXELS;
}
int result = SDL_RenderSetLogicalSize(m_renderer, width, height);
if (result != 0)
{
vlog_error("Error: could not set logical size: %s", SDL_GetError());
return;
}
result = SDL_RenderSetIntegerScale(m_renderer, (SDL_bool) (scalingMode == SCALING_INTEGER));
if (result != 0)
{
vlog_error("Error: could not set scale: %s", SDL_GetError());
}
}
void Screen::RenderPresent(void)
{
/* In certain cases, the window size might mismatch with the logical size.
* So it's better to just always call this. */
UpdateScaling();
SDL_RenderPresent(m_renderer);
graphics.clear();
}
void Screen::toggleFullScreen(void)
{
isWindowed = !isWindowed;
ResizeScreen(windowWidth, windowHeight);
if (game.currentmenuname == Menu::graphicoptions)
{
/* Recreate menu to update "resize to nearest" */
game.createmenu(game.currentmenuname, true);
}
}
void Screen::toggleScalingMode(void)
{
scalingMode = (scalingMode + 1) % NUM_SCALING_MODES;
UpdateScaling();
}
void Screen::toggleLinearFilter(void)
{
isFiltered = !isFiltered;
SDL_DestroyTexture(graphics.gameTexture);
SDL_DestroyTexture(graphics.tempShakeTexture);
graphics.gameTexture = SDL_CreateTexture(
m_renderer,
SDL_PIXELFORMAT_ARGB8888,
SDL_TEXTUREACCESS_TARGET,
SCREEN_WIDTH_PIXELS,
SCREEN_HEIGHT_PIXELS
);
graphics.tempShakeTexture = SDL_CreateTexture(
m_renderer,
SDL_PIXELFORMAT_ARGB8888,
SDL_TEXTUREACCESS_TARGET,
SCREEN_WIDTH_PIXELS,
SCREEN_HEIGHT_PIXELS
);
if (graphics.gameTexture == NULL)
{
vlog_error("Could not create game texture: %s", SDL_GetError());
return;
}
if (graphics.tempShakeTexture == NULL)
{
vlog_error("Could not create temp shake texture: %s", SDL_GetError());
return;
}
SDL_SetTextureScaleMode(
graphics.gameTexture,
isFiltered ? SDL_ScaleModeLinear : SDL_ScaleModeNearest
);
SDL_SetTextureScaleMode(
graphics.tempShakeTexture,
isFiltered ? SDL_ScaleModeLinear : SDL_ScaleModeNearest
);
}
void Screen::toggleVSync(void)
{
vsync = !vsync;
SDL_RenderSetVSync(m_renderer, (int) vsync);
recacheTextures();
}
void Screen::recacheTextures(void)
{
// Fix for d3d9, which clears target textures sometimes (ex. toggling vsync, switching fullscreen, etc...)
// Signal cached textures to be redrawn fully
graphics.backgrounddrawn = false;
graphics.foregrounddrawn = false;
graphics.towerbg.tdrawback = true;
graphics.titlebg.tdrawback = true;
if (game.ingame_titlemode)
{
// Redraw the cached gameplay texture if we're in the in-game menu.
// Additionally, reset alpha so things don't jitter when re-entering gameplay.
float oldAlpha = graphics.alpha;
graphics.alpha = 0;
gamerender();
graphics.alpha = oldAlpha;
}
}
bool Screen::isForcedFullscreen(void)
{
/* This is just a check to see if we're on a desktop or tenfoot setup.
* If you're working on a tenfoot-only build, add a def that always
* returns true!
*/
#ifdef __ANDROID__
return true;
#else
return SDL_GetHintBoolean("SteamTenfoot", SDL_FALSE);
#endif
}