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OpenRCT2/src/platform/shared.c

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/*****************************************************************************
* Copyright (c) 2014 Ted John
* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
*
* This file is part of OpenRCT2.
*
* OpenRCT2 is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*****************************************************************************/
#include "../addresses.h"
#include "../audio/audio.h"
#include "../audio/mixer.h"
#include "../config.h"
#include "../cursors.h"
#include "../drawing/drawing.h"
#include "../game.h"
#include "../interface/console.h"
#include "../interface/keyboard_shortcut.h"
#include "../interface/window.h"
#include "../input.h"
#include "../localisation/currency.h"
#include "../localisation/localisation.h"
#include "../openrct2.h"
#include "../title.h"
#include "../util/util.h"
#include "platform.h"
typedef void(*update_palette_func)(const uint8*, int, int);
openrct2_cursor gCursorState;
const unsigned char *gKeysState;
unsigned char *gKeysPressed;
unsigned int gLastKeyPressed;
textinputbuffer gTextInput;
bool gTextInputCompositionActive;
utf8 gTextInputComposition[32];
int gTextInputCompositionStart;
int gTextInputCompositionLength;
int gNumResolutions = 0;
resolution *gResolutions = NULL;
int gResolutionsAllowAnyAspectRatio = 0;
SDL_Window *gWindow = NULL;
SDL_Renderer *gRenderer = NULL;
SDL_Texture *gBufferTexture = NULL;
SDL_PixelFormat *gBufferTextureFormat = NULL;
SDL_Color gPalette[256];
uint32 gPaletteHWMapped[256];
bool gHardwareDisplay;
bool gSteamOverlayActive = false;
static SDL_Surface *_surface = NULL;
static SDL_Surface *_RGBASurface = NULL;
static SDL_Palette *_palette = NULL;
static void *_screenBuffer;
static int _screenBufferSize;
static int _screenBufferWidth;
static int _screenBufferHeight;
static int _screenBufferPitch;
static SDL_Cursor* _cursors[CURSOR_COUNT];
static const int _fullscreen_modes[] = { 0, SDL_WINDOW_FULLSCREEN, SDL_WINDOW_FULLSCREEN_DESKTOP };
static unsigned int _lastGestureTimestamp;
static float _gestureRadius;
static uint32 _pixelBeforeOverlay;
static uint32 _pixelAfterOverlay;
static void platform_create_window();
static void platform_load_cursors();
static void platform_unload_cursors();
static void platform_refresh_screenbuffer(int width, int height, int pitch);
int resolution_sort_func(const void *pa, const void *pb)
{
const resolution *a = (resolution*)pa;
const resolution *b = (resolution*)pb;
int areaA = a->width * a->height;
int areaB = b->width * b->height;
if (areaA == areaB) return 0;
if (areaA < areaB) return -1;
return 1;
}
void platform_update_fullscreen_resolutions()
{
int i, displayIndex, numDisplayModes;
SDL_DisplayMode mode;
resolution *resLook, *resPlace;
float desktopAspectRatio, aspectRatio;
// Query number of display modes
displayIndex = SDL_GetWindowDisplayIndex(gWindow);
numDisplayModes = SDL_GetNumDisplayModes(displayIndex);
// Get desktop aspect ratio
SDL_GetDesktopDisplayMode(displayIndex, &mode);
desktopAspectRatio = (float)mode.w / mode.h;
if (gResolutions != NULL)
free(gResolutions);
// Get resolutions
gNumResolutions = numDisplayModes;
gResolutions = malloc(gNumResolutions * sizeof(resolution));
gNumResolutions = 0;
for (i = 0; i < numDisplayModes; i++) {
SDL_GetDisplayMode(displayIndex, i, &mode);
aspectRatio = (float)mode.w / mode.h;
if (gResolutionsAllowAnyAspectRatio || fabs(desktopAspectRatio - aspectRatio) < 0.0001f) {
gResolutions[gNumResolutions].width = mode.w;
gResolutions[gNumResolutions].height = mode.h;
gNumResolutions++;
}
}
// Sort by area
qsort(gResolutions, gNumResolutions, sizeof(resolution), resolution_sort_func);
// Remove duplicates
resPlace = &gResolutions[0];
for (int i = 1; i < gNumResolutions; i++) {
resLook = &gResolutions[i];
if (resLook->width != resPlace->width || resLook->height != resPlace->height)
*++resPlace = *resLook;
}
gNumResolutions = (int)(resPlace - &gResolutions[0]) + 1;
// Update config fullscreen resolution if not set
if (gConfigGeneral.fullscreen_width == -1 || gConfigGeneral.fullscreen_height == -1) {
gConfigGeneral.fullscreen_width = gResolutions[gNumResolutions - 1].width;
gConfigGeneral.fullscreen_height = gResolutions[gNumResolutions - 1].height;
}
}
void platform_get_closest_resolution(int inWidth, int inHeight, int *outWidth, int *outHeight)
{
int i, destinationArea, areaDiff, closestAreaDiff, closestWidth = 640, closestHeight = 480;
closestAreaDiff = -1;
destinationArea = inWidth * inHeight;
for (i = 0; i < gNumResolutions; i++) {
// Check if exact match
if (gResolutions[i].width == inWidth && gResolutions[i].height == inHeight) {
closestWidth = gResolutions[i].width;
closestHeight = gResolutions[i].height;
closestAreaDiff = 0;
break;
}
// Check if area is closer to best match
areaDiff = abs((gResolutions[i].width * gResolutions[i].height) - destinationArea);
if (closestAreaDiff == -1 || areaDiff < closestAreaDiff) {
closestAreaDiff = areaDiff;
closestWidth = gResolutions[i].width;
closestHeight = gResolutions[i].height;
}
}
if (closestAreaDiff != -1) {
*outWidth = closestWidth;
*outHeight = closestHeight;
} else {
*outWidth = 640;
*outHeight = 480;
}
}
static void read_center_pixel(int width, int height, uint32 *pixel) {
SDL_Rect centerPixelRegion = {width / 2, height / 2, 1, 1};
SDL_RenderReadPixels(gRenderer, &centerPixelRegion, SDL_PIXELFORMAT_RGBA8888, pixel, sizeof(uint32));
}
// Should be called before SDL_RenderPresent to capture frame buffer before Steam overlay is drawn.
static void overlay_pre_render_check(int width, int height) {
read_center_pixel(width, height, &_pixelBeforeOverlay);
}
// Should be called after SDL_RenderPresent, when Steam overlay has had the chance to be drawn.
static void overlay_post_render_check(int width, int height) {
static bool overlayActive = false;
static bool pausedBeforeOverlay = false;
read_center_pixel(width, height, &_pixelAfterOverlay);
// Detect an active Steam overlay by checking if the center pixel is changed by the gray fade.
// Will not be triggered by applications rendering to corners, like FRAPS, MSI Afterburner and Friends popups.
bool newOverlayActive = _pixelBeforeOverlay != _pixelAfterOverlay;
// Toggle game pause state consistently with base pause state
if (!overlayActive && newOverlayActive) {
pausedBeforeOverlay = RCT2_GLOBAL(RCT2_ADDRESS_GAME_PAUSED, uint32) & 1;
if (!pausedBeforeOverlay) pause_toggle();
} else if (overlayActive && !newOverlayActive && !pausedBeforeOverlay) {
pause_toggle();
}
overlayActive = newOverlayActive;
}
void platform_draw()
{
int width = RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_WIDTH, uint16);
int height = RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_HEIGHT, uint16);
if (!gOpenRCT2Headless) {
if (gHardwareDisplay) {
void *pixels;
int pitch;
if (SDL_LockTexture(gBufferTexture, NULL, &pixels, &pitch) == 0) {
uint8 *src = (uint8*)_screenBuffer;
int padding = pitch - (width * 4);
if (pitch == width * 4) {
uint32 *dst = pixels;
for (int i = width * height; i > 0; i--) { *dst++ = *(uint32 *)(&gPaletteHWMapped[*src++]); }
}
else
if (pitch == (width * 2) + padding) {
uint16 *dst = pixels;
for (int y = height; y > 0; y--) {
for (int x = width; x > 0; x--) {
const uint8 lower = *(uint8 *)(&gPaletteHWMapped[*src++]);
const uint8 upper = *(uint8 *)(&gPaletteHWMapped[*src++]);
*dst++ = (lower << 8) | upper;
}
dst = (uint16*)(((uint8 *)dst) + padding);
}
}
else
if (pitch == width + padding) {
uint8 *dst = pixels;
for (int y = height; y > 0; y--) {
for (int x = width; x > 0; x--) { *dst++ = *(uint8 *)(&gPaletteHWMapped[*src++]); }
dst += padding;
}
}
SDL_UnlockTexture(gBufferTexture);
}
SDL_RenderCopy(gRenderer, gBufferTexture, NULL, NULL);
if (gSteamOverlayActive && gConfigGeneral.steam_overlay_pause) {
overlay_pre_render_check(width, height);
}
SDL_RenderPresent(gRenderer);
if (gSteamOverlayActive && gConfigGeneral.steam_overlay_pause) {
overlay_post_render_check(width, height);
}
}
else {
// Lock the surface before setting its pixels
if (SDL_MUSTLOCK(_surface)) {
if (SDL_LockSurface(_surface) < 0) {
log_error("locking failed %s", SDL_GetError());
return;
}
}
// Copy pixels from the virtual screen buffer to the surface
memcpy(_surface->pixels, _screenBuffer, _surface->pitch * _surface->h);
// Unlock the surface
if (SDL_MUSTLOCK(_surface))
SDL_UnlockSurface(_surface);
// Copy the surface to the window
if (gConfigGeneral.window_scale == 1 || gConfigGeneral.window_scale <= 0)
{
if (SDL_BlitSurface(_surface, NULL, SDL_GetWindowSurface(gWindow), NULL)) {
log_fatal("SDL_BlitSurface %s", SDL_GetError());
exit(1);
}
} else {
// first blit to rgba surface to change the pixel format
if (SDL_BlitSurface(_surface, NULL, _RGBASurface, NULL)) {
log_fatal("SDL_BlitSurface %s", SDL_GetError());
exit(1);
}
// then scale to window size. Without changing to RGBA first, SDL complains
// about blit configurations being incompatible.
if (SDL_BlitScaled(_RGBASurface, NULL, SDL_GetWindowSurface(gWindow), NULL)) {
log_fatal("SDL_BlitScaled %s", SDL_GetError());
exit(1);
}
}
if (SDL_UpdateWindowSurface(gWindow)) {
log_fatal("SDL_UpdateWindowSurface %s", SDL_GetError());
exit(1);
}
}
}
}
static void platform_resize(int width, int height)
{
uint32 flags;
int dst_w = (int)(width / gConfigGeneral.window_scale);
int dst_h = (int)(height / gConfigGeneral.window_scale);
RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_WIDTH, uint16) = dst_w;
RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_HEIGHT, uint16) = dst_h;
platform_refresh_video();
flags = SDL_GetWindowFlags(gWindow);
if ((flags & SDL_WINDOW_MINIMIZED) == 0) {
window_resize_gui(dst_w, dst_h);
window_relocate_windows(dst_w, dst_h);
}
title_fix_location();
gfx_invalidate_screen();
// Check if the window has been resized in windowed mode and update the config file accordingly
// This is called in rct2_update and is only called after resizing a window has finished
const int nonWindowFlags =
SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED | SDL_WINDOW_FULLSCREEN | SDL_WINDOW_FULLSCREEN_DESKTOP;
if (!(flags & nonWindowFlags)) {
if (width != gConfigGeneral.window_width || height != gConfigGeneral.window_height) {
gConfigGeneral.window_width = width;
gConfigGeneral.window_height = height;
config_save_default();
}
}
}
/**
* @brief platform_trigger_resize
* Helper function to set various render target features.
*
* Does not get triggered on resize, but rather manually on config changes.
*/
void platform_trigger_resize()
{
char scale_quality_buffer[4]; // just to make sure we can hold whole uint8
uint8 scale_quality = gConfigGeneral.scale_quality;
if (gConfigGeneral.use_nn_at_integer_scales && gConfigGeneral.window_scale == floor(gConfigGeneral.window_scale)) {
scale_quality = 0;
}
snprintf(scale_quality_buffer, sizeof(scale_quality_buffer), "%u", scale_quality);
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, scale_quality_buffer);
int w, h;
SDL_GetWindowSize(gWindow, &w, &h);
platform_resize(w, h);
}
static uint8 soft_light(uint8 a, uint8 b)
{
float fa = a / 255.0f;
float fb = b / 255.0f;
float fr;
if (fb < 0.5f) {
fr = (2 * fa * fb) + ((fa * fa) * (1 - (2 * fb)));
} else {
fr = (2 * fa * (1 - fb)) + (sqrtf(fa) * ((2 * fb) - 1));
}
return (uint8)(clamp(0.0f, fr, 1.0f) * 255.0f);
}
static uint8 lerp(uint8 a, uint8 b, float t)
{
if (t <= 0) return a;
if (t >= 1) return b;
int range = b - a;
int amount = (int)(range * t);
return (uint8)(a + amount);
}
void platform_update_palette(const uint8* colours, int start_index, int num_colours)
{
SDL_Surface *surface;
int i;
colours += start_index * 4;
for (i = start_index; i < num_colours + start_index; i++) {
gPalette[i].r = colours[2];
gPalette[i].g = colours[1];
gPalette[i].b = colours[0];
gPalette[i].a = 0;
float night = gDayNightCycle;
if (night >= 0 && RCT2_GLOBAL(RCT2_ADDRESS_LIGHTNING_ACTIVE, uint8) == 0) {
gPalette[i].r = lerp(gPalette[i].r, soft_light(gPalette[i].r, 8), night);
gPalette[i].g = lerp(gPalette[i].g, soft_light(gPalette[i].g, 8), night);
gPalette[i].b = lerp(gPalette[i].b, soft_light(gPalette[i].b, 128), night);
}
colours += 4;
if (gBufferTextureFormat != NULL) {
gPaletteHWMapped[i] = SDL_MapRGB(gBufferTextureFormat, gPalette[i].r, gPalette[i].g, gPalette[i].b);
}
}
if (!gOpenRCT2Headless && !gHardwareDisplay) {
surface = SDL_GetWindowSurface(gWindow);
if (!surface) {
log_fatal("SDL_GetWindowSurface failed %s", SDL_GetError());
exit(1);
}
if (_palette != NULL && SDL_SetPaletteColors(_palette, gPalette, 0, 256)) {
log_fatal("SDL_SetPaletteColors failed %s", SDL_GetError());
exit(1);
}
}
}
void platform_process_messages()
{
SDL_Event e;
gLastKeyPressed = 0;
// gCursorState.wheel = 0;
gCursorState.left &= ~CURSOR_CHANGED;
gCursorState.middle &= ~CURSOR_CHANGED;
gCursorState.right &= ~CURSOR_CHANGED;
gCursorState.old = 0;
gCursorState.touch = false;
while (SDL_PollEvent(&e)) {
switch (e.type) {
case SDL_QUIT:
// rct2_finish();
rct2_quit();
break;
case SDL_WINDOWEVENT:
// HACK: Fix #2158, OpenRCT2 does not draw if it does not think that the window is
// visible - due a bug in SDL2.0.3 this hack is required if the
// window is maximised, minimised and then restored again.
if (e.window.event == SDL_WINDOWEVENT_FOCUS_GAINED) {
if (SDL_GetWindowFlags(gWindow) & SDL_WINDOW_MAXIMIZED) {
SDL_RestoreWindow(gWindow);
SDL_MaximizeWindow(gWindow);
}
if ((SDL_GetWindowFlags(gWindow) & SDL_WINDOW_FULLSCREEN_DESKTOP) == SDL_WINDOW_FULLSCREEN_DESKTOP) {
SDL_RestoreWindow(gWindow);
SDL_SetWindowFullscreen(gWindow, SDL_WINDOW_FULLSCREEN_DESKTOP);
}
}
if (e.window.event == SDL_WINDOWEVENT_SIZE_CHANGED)
platform_resize(e.window.data1, e.window.data2);
if (gConfigSound.audio_focus && gConfigSound.sound_enabled) {
if (e.window.event == SDL_WINDOWEVENT_FOCUS_GAINED) {
Mixer_SetVolume(1);
}
if (e.window.event == SDL_WINDOWEVENT_FOCUS_LOST) {
Mixer_SetVolume(0);
}
}
break;
case SDL_MOUSEMOTION:
RCT2_GLOBAL(0x0142406C, int) = (int)(e.motion.x / gConfigGeneral.window_scale);
RCT2_GLOBAL(0x01424070, int) = (int)(e.motion.y / gConfigGeneral.window_scale);
gCursorState.x = (int)(e.motion.x / gConfigGeneral.window_scale);
gCursorState.y = (int)(e.motion.y / gConfigGeneral.window_scale);
break;
case SDL_MOUSEWHEEL:
if (gConsoleOpen) {
console_scroll(e.wheel.y);
break;
}
gCursorState.wheel += e.wheel.y * 128;
break;
case SDL_MOUSEBUTTONDOWN:
RCT2_GLOBAL(0x01424318, int) = (int)(e.button.x / gConfigGeneral.window_scale);
RCT2_GLOBAL(0x0142431C, int) = (int)(e.button.y / gConfigGeneral.window_scale);
switch (e.button.button) {
case SDL_BUTTON_LEFT:
store_mouse_input(1);
gCursorState.left = CURSOR_PRESSED;
gCursorState.old = 1;
break;
case SDL_BUTTON_MIDDLE:
gCursorState.middle = CURSOR_PRESSED;
break;
case SDL_BUTTON_RIGHT:
store_mouse_input(3);
gCursorState.right = CURSOR_PRESSED;
gCursorState.old = 2;
break;
}
break;
case SDL_MOUSEBUTTONUP:
RCT2_GLOBAL(0x01424318, int) = (int)(e.button.x / gConfigGeneral.window_scale);
RCT2_GLOBAL(0x0142431C, int) = (int)(e.button.y / gConfigGeneral.window_scale);
switch (e.button.button) {
case SDL_BUTTON_LEFT:
store_mouse_input(2);
gCursorState.left = CURSOR_RELEASED;
gCursorState.old = 3;
break;
case SDL_BUTTON_MIDDLE:
gCursorState.middle = CURSOR_RELEASED;
break;
case SDL_BUTTON_RIGHT:
store_mouse_input(4);
gCursorState.right = CURSOR_RELEASED;
gCursorState.old = 4;
break;
}
break;
// Apple sends touchscreen events for trackpads, so ignore these events on OS X
#ifndef __MACOSX__
case SDL_FINGERMOTION:
RCT2_GLOBAL(0x0142406C, int) = (int)(e.tfinger.x * _screenBufferWidth);
RCT2_GLOBAL(0x01424070, int) = (int)(e.tfinger.y * _screenBufferHeight);
gCursorState.x = (int)(e.tfinger.x * _screenBufferWidth);
gCursorState.y = (int)(e.tfinger.y * _screenBufferHeight);
break;
case SDL_FINGERDOWN:
RCT2_GLOBAL(0x01424318, int) = (int)(e.tfinger.x * _screenBufferWidth);
RCT2_GLOBAL(0x0142431C, int) = (int)(e.tfinger.y * _screenBufferHeight);
gCursorState.touchIsDouble = (!gCursorState.touchIsDouble
&& e.tfinger.timestamp - gCursorState.touchDownTimestamp < TOUCH_DOUBLE_TIMEOUT);
if (gCursorState.touchIsDouble) {
store_mouse_input(3);
gCursorState.right = CURSOR_PRESSED;
gCursorState.old = 2;
} else {
store_mouse_input(1);
gCursorState.left = CURSOR_PRESSED;
gCursorState.old = 1;
}
gCursorState.touch = true;
gCursorState.touchDownTimestamp = e.tfinger.timestamp;
break;
case SDL_FINGERUP:
RCT2_GLOBAL(0x01424318, int) = (int)(e.tfinger.x * _screenBufferWidth);
RCT2_GLOBAL(0x0142431C, int) = (int)(e.tfinger.y * _screenBufferHeight);
if (gCursorState.touchIsDouble) {
store_mouse_input(4);
gCursorState.left = CURSOR_RELEASED;
gCursorState.old = 4;
} else {
store_mouse_input(2);
gCursorState.left = CURSOR_RELEASED;
gCursorState.old = 3;
}
gCursorState.touch = true;
break;
#endif
case SDL_KEYDOWN:
if (gTextInputCompositionActive) break;
if (e.key.keysym.sym == SDLK_KP_ENTER){
// Map Keypad enter to regular enter.
e.key.keysym.scancode = SDL_SCANCODE_RETURN;
}
gLastKeyPressed = e.key.keysym.sym;
gKeysPressed[e.key.keysym.scancode] = 1;
if (e.key.keysym.sym == SDLK_RETURN && e.key.keysym.mod & KMOD_ALT) {
int targetMode = gConfigGeneral.fullscreen_mode == 0 ? 2 : 0;
platform_set_fullscreen_mode(targetMode);
gConfigGeneral.fullscreen_mode = targetMode;
config_save_default();
break;
}
// Text input
if (gTextInput.buffer == NULL) break;
// Clear the input on <CTRL>Backspace (Windows/Linux) or <MOD>Backspace (OS X)
if (e.key.keysym.sym == SDLK_BACKSPACE && (e.key.keysym.mod & KEYBOARD_PRIMARY_MODIFIER)) {
textinputbuffer_clear(&gTextInput);
console_refresh_caret();
window_update_textbox();
}
// If backspace and we have input text with a cursor position none zero
if (e.key.keysym.sym == SDLK_BACKSPACE) {
if (gTextInput.selection_offset > 0) {
size_t endOffset = gTextInput.selection_offset;
textinputbuffer_cursor_left(&gTextInput);
gTextInput.selection_size = endOffset - gTextInput.selection_offset;
textinputbuffer_remove_selected(&gTextInput);
console_refresh_caret();
window_update_textbox();
}
}
if (e.key.keysym.sym == SDLK_HOME) {
textinputbuffer_cursor_home(&gTextInput);
console_refresh_caret();
}
if (e.key.keysym.sym == SDLK_END) {
textinputbuffer_cursor_end(&gTextInput);
console_refresh_caret();
}
if (e.key.keysym.sym == SDLK_DELETE) {
size_t startOffset = gTextInput.selection_offset;
textinputbuffer_cursor_right(&gTextInput);
gTextInput.selection_size = gTextInput.selection_offset - startOffset;
gTextInput.selection_offset = startOffset;
textinputbuffer_remove_selected(&gTextInput);
console_refresh_caret();
window_update_textbox();
}
if (e.key.keysym.sym == SDLK_RETURN) {
window_cancel_textbox();
}
if (e.key.keysym.sym == SDLK_LEFT) {
textinputbuffer_cursor_left(&gTextInput);
console_refresh_caret();
}
else if (e.key.keysym.sym == SDLK_RIGHT) {
textinputbuffer_cursor_right(&gTextInput);
console_refresh_caret();
}
else if (e.key.keysym.sym == SDLK_v && (SDL_GetModState() & KEYBOARD_PRIMARY_MODIFIER)) {
if (SDL_HasClipboardText()) {
utf8 *text = SDL_GetClipboardText();
textinputbuffer_insert(&gTextInput, text);
window_update_textbox();
}
}
break;
case SDL_MULTIGESTURE:
if (e.mgesture.numFingers == 2) {
if (e.mgesture.timestamp > _lastGestureTimestamp + 1000)
_gestureRadius = 0;
_lastGestureTimestamp = e.mgesture.timestamp;
_gestureRadius += e.mgesture.dDist;
// Zoom gesture
const int tolerance = 128;
int gesturePixels = (int)(_gestureRadius * RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_WIDTH, uint16));
if (gesturePixels > tolerance) {
_gestureRadius = 0;
keyboard_shortcut_handle_command(SHORTCUT_ZOOM_VIEW_IN);
} else if (gesturePixels < -tolerance) {
_gestureRadius = 0;
keyboard_shortcut_handle_command(SHORTCUT_ZOOM_VIEW_OUT);
}
}
break;
case SDL_TEXTEDITING:
// When inputting Korean characters, `e.edit.length` is always Zero.
safe_strcpy(gTextInputComposition, e.edit.text, min((e.edit.length == 0) ? (strlen(e.edit.text)+1) : e.edit.length, 32));
gTextInputCompositionStart = e.edit.start;
gTextInputCompositionLength = e.edit.length;
gTextInputCompositionActive = ((e.edit.length != 0 || strlen(e.edit.text) != 0) && gTextInputComposition[0] != 0);
break;
case SDL_TEXTINPUT:
// will receive an `SDL_TEXTINPUT` event when a composition is committed.
// so, set gTextInputCompositionActive to false.
gTextInputCompositionActive = false;
if (gTextInput.buffer == NULL) break;
// HACK ` will close console, so don't input any text
if (e.text.text[0] == '`' && gConsoleOpen) {
break;
}
// Entering formatting characters is not allowed
if (utf8_is_format_code(utf8_get_next(e.text.text, NULL))) {
break;
}
utf8 *newText = e.text.text;
textinputbuffer_insert(&gTextInput, newText);
console_refresh_caret();
window_update_textbox();
break;
default:
break;
}
}
gCursorState.any = gCursorState.left | gCursorState.middle | gCursorState.right;
// Updates the state of the keys
int numKeys = 256;
gKeysState = SDL_GetKeyboardState(&numKeys);
}
static void platform_close_window()
{
if (gWindow != NULL)
SDL_DestroyWindow(gWindow);
if (_surface != NULL)
SDL_FreeSurface(_surface);
if (_palette != NULL)
SDL_FreePalette(_palette);
if (_RGBASurface != NULL)
SDL_FreeSurface(_RGBASurface);
platform_unload_cursors();
}
void platform_init()
{
platform_create_window();
gKeysPressed = malloc(sizeof(unsigned char) * 256);
memset(gKeysPressed, 0, sizeof(unsigned char) * 256);
// Set the highest palette entry to white.
// This fixes a bug with the TT:rainbow road due to the
// image not using the correct white palette entry.
gPalette[255].a = 0;
gPalette[255].r = 255;
gPalette[255].g = 255;
gPalette[255].b = 255;
}
static void platform_create_window()
{
int width, height;
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
log_fatal("SDL_Init %s", SDL_GetError());
exit(-1);
}
SDL_SetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS, gConfigGeneral.minimize_fullscreen_focus_loss ? "1" : "0");
platform_load_cursors();
// TODO This should probably be called somewhere else. It has nothing to do with window creation and can be done as soon as
// g1.dat is loaded.
sub_68371D();
// Get window size
width = gConfigGeneral.window_width;
height = gConfigGeneral.window_height;
if (width == -1) width = 640;
if (height == -1) height = 480;
RCT2_GLOBAL(0x009E2D8C, sint32) = 0;
gHardwareDisplay = gConfigGeneral.hardware_display;
// Create window in window first rather than fullscreen so we have the display the window is on first
gWindow = SDL_CreateWindow(
"OpenRCT2", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, width, height, SDL_WINDOW_RESIZABLE
);
if (!gWindow) {
log_fatal("SDL_CreateWindow failed %s", SDL_GetError());
exit(-1);
}
SDL_SetWindowGrab(gWindow, gConfigGeneral.trap_cursor ? SDL_TRUE : SDL_FALSE);
SDL_SetWindowMinimumSize(gWindow, 720, 480);
platform_init_window_icon();
// Set the update palette function pointer
RCT2_GLOBAL(0x009E2BE4, update_palette_func) = platform_update_palette;
// Initialise the surface, palette and draw buffer
platform_resize(width, height);
platform_update_fullscreen_resolutions();
platform_set_fullscreen_mode(gConfigGeneral.fullscreen_mode);
// Check if steam overlay renderer is loaded into the process
gSteamOverlayActive = platform_check_steam_overlay_attached();
platform_trigger_resize();
}
int platform_scancode_to_rct_keycode(int sdl_key)
{
char keycode = (char)SDL_GetKeyFromScancode((SDL_Scancode)sdl_key);
// Until we reshufle the text files to use the new positions
// this will suffice to move the majority to the correct positions.
// Note any special buttons PgUp PgDwn are mapped wrong.
if (keycode >= 'a' && keycode <= 'z')
keycode = toupper(keycode);
return keycode;
}
void platform_free()
{
free(gKeysPressed);
platform_close_window();
SDL_Quit();
}
void platform_start_text_input(utf8* buffer, int max_length)
{
// TODO This doesn't work, and position could be improved to where text entry is
SDL_Rect rect = { 10, 10, 100, 100 };
SDL_SetTextInputRect(&rect);
SDL_StartTextInput();
textinputbuffer_init(&gTextInput, buffer, max_length);
}
void platform_stop_text_input()
{
SDL_StopTextInput();
gTextInput.buffer = NULL;
gTextInputCompositionActive = false;
}
static void platform_unload_cursors()
{
for (int i = 0; i < CURSOR_COUNT; i++)
if (_cursors[i] != NULL)
SDL_FreeCursor(_cursors[i]);
}
void platform_set_fullscreen_mode(int mode)
{
int width, height;
mode = _fullscreen_modes[mode];
// HACK Changing window size when in fullscreen usually has no effect
if (mode == SDL_WINDOW_FULLSCREEN)
SDL_SetWindowFullscreen(gWindow, 0);
// Set window size
if (mode == SDL_WINDOW_FULLSCREEN) {
platform_update_fullscreen_resolutions();
platform_get_closest_resolution(gConfigGeneral.fullscreen_width, gConfigGeneral.fullscreen_height, &width, &height);
SDL_SetWindowSize(gWindow, width, height);
} else if (mode == 0) {
SDL_SetWindowSize(gWindow, gConfigGeneral.window_width, gConfigGeneral.window_height);
}
if (SDL_SetWindowFullscreen(gWindow, mode)) {
log_fatal("SDL_SetWindowFullscreen %s", SDL_GetError());
exit(1);
// TODO try another display mode rather than just exiting the game
}
}
/**
* This is not quite the same as the below function as we don't want to
* derfererence the cursor before the function.
* rct2: 0x0407956
*/
void platform_set_cursor(uint8 cursor)
{
RCT2_GLOBAL(RCT2_ADDRESS_CURENT_CURSOR, uint8) = cursor;
SDL_SetCursor(_cursors[cursor]);
}
/**
*
* rct2: 0x0068352C
*/
static void platform_load_cursors()
{
_cursors[0] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
_cursors[1] = SDL_CreateCursor(blank_cursor_data, blank_cursor_mask, 32, 32, BLANK_CURSOR_HOTX, BLANK_CURSOR_HOTY);
_cursors[2] = SDL_CreateCursor(up_arrow_cursor_data, up_arrow_cursor_mask, 32, 32, UP_ARROW_CURSOR_HOTX, UP_ARROW_CURSOR_HOTY);
_cursors[3] = SDL_CreateCursor(up_down_arrow_cursor_data, up_down_arrow_cursor_mask, 32, 32, UP_DOWN_ARROW_CURSOR_HOTX, UP_DOWN_ARROW_CURSOR_HOTY);
_cursors[4] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_HAND);
_cursors[5] = SDL_CreateCursor(zzz_cursor_data, zzz_cursor_mask, 32, 32, ZZZ_CURSOR_HOTX, ZZZ_CURSOR_HOTY);
_cursors[6] = SDL_CreateCursor(diagonal_arrow_cursor_data, diagonal_arrow_cursor_mask, 32, 32, DIAGONAL_ARROW_CURSOR_HOTX, DIAGONAL_ARROW_CURSOR_HOTY);
_cursors[7] = SDL_CreateCursor(picker_cursor_data, picker_cursor_mask, 32, 32, PICKER_CURSOR_HOTX, PICKER_CURSOR_HOTY);
_cursors[8] = SDL_CreateCursor(tree_down_cursor_data, tree_down_cursor_mask, 32, 32, TREE_DOWN_CURSOR_HOTX, TREE_DOWN_CURSOR_HOTY);
_cursors[9] = SDL_CreateCursor(fountain_down_cursor_data, fountain_down_cursor_mask, 32, 32, FOUNTAIN_DOWN_CURSOR_HOTX, FOUNTAIN_DOWN_CURSOR_HOTY);
_cursors[10] = SDL_CreateCursor(statue_down_cursor_data, statue_down_cursor_mask, 32, 32, STATUE_DOWN_CURSOR_HOTX, STATUE_DOWN_CURSOR_HOTY);
_cursors[11] = SDL_CreateCursor(bench_down_cursor_data, bench_down_cursor_mask, 32, 32, BENCH_DOWN_CURSOR_HOTX, BENCH_DOWN_CURSOR_HOTY);
_cursors[12] = SDL_CreateCursor(cross_hair_cursor_data, cross_hair_cursor_mask, 32, 32, CROSS_HAIR_CURSOR_HOTX, CROSS_HAIR_CURSOR_HOTY);
_cursors[13] = SDL_CreateCursor(bin_down_cursor_data, bin_down_cursor_mask, 32, 32, BIN_DOWN_CURSOR_HOTX, BIN_DOWN_CURSOR_HOTY);
_cursors[14] = SDL_CreateCursor(lamppost_down_cursor_data, lamppost_down_cursor_mask, 32, 32, LAMPPOST_DOWN_CURSOR_HOTX, LAMPPOST_DOWN_CURSOR_HOTY);
_cursors[15] = SDL_CreateCursor(fence_down_cursor_data, fence_down_cursor_mask, 32, 32, FENCE_DOWN_CURSOR_HOTX, FENCE_DOWN_CURSOR_HOTY);
_cursors[16] = SDL_CreateCursor(flower_down_cursor_data, flower_down_cursor_mask, 32, 32, FLOWER_DOWN_CURSOR_HOTX, FLOWER_DOWN_CURSOR_HOTY);
_cursors[17] = SDL_CreateCursor(path_down_cursor_data, path_down_cursor_mask, 32, 32, PATH_DOWN_CURSOR_HOTX, PATH_DOWN_CURSOR_HOTY);
_cursors[18] = SDL_CreateCursor(dig_down_cursor_data, dig_down_cursor_mask, 32, 32, DIG_DOWN_CURSOR_HOTX, DIG_DOWN_CURSOR_HOTY);
_cursors[19] = SDL_CreateCursor(water_down_cursor_data, water_down_cursor_mask, 32, 32, WATER_DOWN_CURSOR_HOTX, WATER_DOWN_CURSOR_HOTY);
_cursors[20] = SDL_CreateCursor(house_down_cursor_data, house_down_cursor_mask, 32, 32, HOUSE_DOWN_CURSOR_HOTX, HOUSE_DOWN_CURSOR_HOTY);
_cursors[21] = SDL_CreateCursor(volcano_down_cursor_data, volcano_down_cursor_mask, 32, 32, VOLCANO_DOWN_CURSOR_HOTX, VOLCANO_DOWN_CURSOR_HOTY);
_cursors[22] = SDL_CreateCursor(walk_down_cursor_data, walk_down_cursor_mask, 32, 32, WALK_DOWN_CURSOR_HOTX, WALK_DOWN_CURSOR_HOTY);
_cursors[23] = SDL_CreateCursor(paint_down_cursor_data, paint_down_cursor_mask, 32, 32, PAINT_DOWN_CURSOR_HOTX, PAINT_DOWN_CURSOR_HOTY);
_cursors[24] = SDL_CreateCursor(entrance_down_cursor_data, entrance_down_cursor_mask, 32, 32, ENTRANCE_DOWN_CURSOR_HOTX, ENTRANCE_DOWN_CURSOR_HOTY);
_cursors[25] = SDL_CreateCursor(hand_open_cursor_data, hand_open_cursor_mask, 32, 32, HAND_OPEN_CURSOR_HOTX, HAND_OPEN_CURSOR_HOTY);
_cursors[26] = SDL_CreateCursor(hand_closed_cursor_data, hand_closed_cursor_mask, 32, 32, HAND_CLOSED_CURSOR_HOTX, HAND_CLOSED_CURSOR_HOTY);
platform_set_cursor(CURSOR_ARROW);
}
void platform_refresh_video()
{
int width = RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_WIDTH, uint16);
int height = RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_HEIGHT, uint16);
SDL_SetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS, gConfigGeneral.minimize_fullscreen_focus_loss ? "1" : "0");
log_verbose("HardwareDisplay: %s", gHardwareDisplay ? "true" : "false");
if (gHardwareDisplay) {
if (gRenderer == NULL)
gRenderer = SDL_CreateRenderer(gWindow, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
if (gRenderer == NULL) {
log_warning("SDL_CreateRenderer failed: %s", SDL_GetError());
log_warning("Falling back to software rendering...");
gHardwareDisplay = false;
platform_refresh_video(); // try again without hardware rendering
return;
}
if (gBufferTexture != NULL)
SDL_DestroyTexture(gBufferTexture);
if (gBufferTextureFormat != NULL)
SDL_FreeFormat(gBufferTextureFormat);
SDL_RendererInfo rendererinfo;
SDL_GetRendererInfo(gRenderer, &rendererinfo);
Uint32 pixelformat = SDL_PIXELFORMAT_UNKNOWN;
for(unsigned int i = 0; i < rendererinfo.num_texture_formats; i++){
Uint32 format = rendererinfo.texture_formats[i];
if(!SDL_ISPIXELFORMAT_FOURCC(format) && !SDL_ISPIXELFORMAT_INDEXED(format) && (pixelformat == SDL_PIXELFORMAT_UNKNOWN || SDL_BYTESPERPIXEL(format) < SDL_BYTESPERPIXEL(pixelformat))){
pixelformat = format;
}
}
gBufferTexture = SDL_CreateTexture(gRenderer, pixelformat, SDL_TEXTUREACCESS_STREAMING, width, height);
Uint32 format;
SDL_QueryTexture(gBufferTexture, &format, 0, 0, 0);
gBufferTextureFormat = SDL_AllocFormat(format);
platform_refresh_screenbuffer(width, height, width);
// Load the current palette into the HWmapped version.
for (int i = 0; i < 256; ++i) {
gPaletteHWMapped[i] = SDL_MapRGB(gBufferTextureFormat, gPalette[i].r, gPalette[i].g, gPalette[i].b);
}
} else {
if (_surface != NULL)
SDL_FreeSurface(_surface);
if (_RGBASurface != NULL)
SDL_FreeSurface(_RGBASurface);
if (_palette != NULL)
SDL_FreePalette(_palette);
_surface = SDL_CreateRGBSurface(0, width, height, 8, 0, 0, 0, 0);
_RGBASurface = SDL_CreateRGBSurface(0, width, height, 32, 0, 0, 0, 0);
SDL_SetSurfaceBlendMode(_RGBASurface, SDL_BLENDMODE_NONE);
_palette = SDL_AllocPalette(256);
if (!_surface || !_palette || !_RGBASurface) {
log_fatal("%p || %p || %p == NULL %s", _surface, _palette, _RGBASurface, SDL_GetError());
exit(-1);
}
if (SDL_SetSurfacePalette(_surface, _palette)) {
log_fatal("SDL_SetSurfacePalette failed %s", SDL_GetError());
exit(-1);
}
platform_refresh_screenbuffer(width, height, _surface->pitch);
}
}
static void platform_refresh_screenbuffer(int width, int height, int pitch)
{
int newScreenBufferSize = pitch * height;
char *newScreenBuffer = (char*)malloc(newScreenBufferSize);
if (_screenBuffer == NULL) {
memset(newScreenBuffer, 0, newScreenBufferSize);
} else {
if (_screenBufferPitch == pitch) {
memcpy(newScreenBuffer, _screenBuffer, min(_screenBufferSize, newScreenBufferSize));
} else {
char *src = _screenBuffer;
char *dst = newScreenBuffer;
int minWidth = min(_screenBufferWidth, width);
int minHeight = min(_screenBufferHeight, height);
for (int y = 0; y < minHeight; y++) {
memcpy(dst, src, minWidth);
if (pitch - minWidth > 0)
memset(dst + minWidth, 0, pitch - minWidth);
src += _screenBufferPitch;
dst += pitch;
}
}
//if (newScreenBufferSize - _screenBufferSize > 0)
// memset((uint8*)newScreenBuffer + _screenBufferSize, 0, newScreenBufferSize - _screenBufferSize);
free(_screenBuffer);
}
_screenBuffer = newScreenBuffer;
_screenBufferSize = newScreenBufferSize;
_screenBufferWidth = width;
_screenBufferHeight = height;
_screenBufferPitch = pitch;
rct_drawpixelinfo *screenDPI;
screenDPI = RCT2_ADDRESS(RCT2_ADDRESS_SCREEN_DPI, rct_drawpixelinfo);
screenDPI->bits = _screenBuffer;
screenDPI->x = 0;
screenDPI->y = 0;
screenDPI->width = width;
screenDPI->height = height;
screenDPI->pitch = _screenBufferPitch - width;
RCT2_GLOBAL(0x009ABDF0, uint8) = 7;
RCT2_GLOBAL(0x009ABDF1, uint8) = 6;
RCT2_GLOBAL(0x009ABDF2, uint8) = 1;
RCT2_GLOBAL(RCT2_ADDRESS_DIRTY_BLOCK_WIDTH, uint16) = 1 << RCT2_GLOBAL(0x009ABDF0, uint8);
RCT2_GLOBAL(RCT2_ADDRESS_DIRTY_BLOCK_HEIGHT, uint16) = 1 << RCT2_GLOBAL(0x009ABDF1, uint8);
RCT2_GLOBAL(RCT2_ADDRESS_DIRTY_BLOCK_COLUMNS, uint32) = (width >> RCT2_GLOBAL(0x009ABDF0, uint8)) + 1;
RCT2_GLOBAL(RCT2_ADDRESS_DIRTY_BLOCK_ROWS, uint32) = (height >> RCT2_GLOBAL(0x009ABDF1, uint8)) + 1;
}
void platform_hide_cursor()
{
SDL_ShowCursor(SDL_DISABLE);
}
void platform_show_cursor()
{
SDL_ShowCursor(SDL_ENABLE);
}
void platform_get_cursor_position(int *x, int *y)
{
SDL_GetMouseState(x, y);
}
void platform_set_cursor_position(int x, int y)
{
SDL_WarpMouseInWindow(NULL, x, y);
}
unsigned int platform_get_ticks()
{
return SDL_GetTicks();
}
uint8 platform_get_currency_value(const char *currCode) {
if (currCode == NULL || strlen(currCode) < 3) {
return CURRENCY_POUNDS;
}
for (int currency = 0; currency < CURRENCY_END; ++currency) {
if (strncmp(currCode, CurrencyDescriptors[currency].isoCode, 3) == 0) {
return currency;
}
}
return CURRENCY_POUNDS;
}
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