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Copy pathEngine.cpp
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582 lines (529 loc) · 15.4 KB
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#include "Engine.h"
#ifdef _MSC_VER
#define NOMINMAX
#include <windows.h>
#pragma comment(lib, "user32.lib")
#endif
Engine::Engine()
{
}
Engine::~Engine()
{
destroy();
}
int Engine::init(void* handle)
{
if (SDL_Init(SDL_INIT_EVENTS | SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_GAMECONTROLLER | SDL_INIT_JOYSTICK | SDL_INIT_HAPTIC))
{
return -1;
}
window_ = SDL_CreateWindow(title_.c_str(), SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
start_w_, start_h_, SDL_WINDOW_RESIZABLE);
SDL_ShowWindow(window_);
SDL_RaiseWindow(window_);
renderer_ = SDL_CreateRenderer(window_, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_TARGETTEXTURE /*| SDL_RENDERER_PRESENTVSYNC*/);
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1");
SDL_EventState(SDL_DROPFILE, SDL_ENABLE);
//屏蔽触摸板
SDL_EventState(SDL_FINGERUP, SDL_DISABLE);
SDL_EventState(SDL_FINGERDOWN, SDL_DISABLE);
SDL_EventState(SDL_FINGERMOTION, SDL_DISABLE);
//手柄
if (SDL_NumJoysticks() < 1)
{
fmt1::print("Warning: No joysticks connected!\n");
}
else
{
//按照游戏控制器打开
game_controller_ = SDL_GameControllerOpen(0);
if (game_controller_)
{
fmt1::print("Found {} game controller(s)\n", SDL_NumJoysticks());
std::string name = SDL_GameControllerName(game_controller_);
fmt1::print("{}\n", name);
if (name.find("Switch") != std::string::npos) { switch_ = 1; }
haptic_ = SDL_HapticOpenFromJoystick(SDL_GameControllerGetJoystick(game_controller_));
if (haptic_ == nullptr) { fmt1::print("{}\n", SDL_GetError()); }
}
else
{
fmt1::print("Warning: Unable to open game controller! SDL Error: {}\n", SDL_GetError());
}
}
rect_ = { 0, 0, start_w_, start_h_ };
logo_ = loadImage("logo.png");
showLogo();
renderPresent();
TTF_Init();
#ifdef _MSC_VER
RECT r;
SystemParametersInfo(SPI_GETWORKAREA, 0, (PVOID)&r, 0);
int w = GetSystemMetrics(SM_CXEDGE);
int h = GetSystemMetrics(SM_CYEDGE);
min_x_ = r.left + w;
min_y_ = r.top + h + GetSystemMetrics(SM_CYCAPTION);
max_x_ = r.right - w;
max_y_ = r.bottom - h;
#else
BP_Rect r;
SDL_GetDisplayBounds(0, &r);
min_x_ = r.x;
min_y_ = r.y;
max_x_ = r.w + r.x;
max_y_ = r.h + r.y;
#endif
square_ = createRectTexture(100, 100, 0);
fmt1::print("maximum width and height are: {}, {}\n", max_x_, max_y_);
#if defined(_WIN32) && defined(WITH_SMALLPOT) && !defined(_DEBUG)
tinypot_ = PotCreateFromWindow(window_);
#endif
return 0;
}
void Engine::destroy()
{
//SDL_DestroyTexture(tex_);
destroyAssistTexture();
SDL_DestroyRenderer(renderer_);
SDL_DestroyWindow(window_);
#if defined(_WIN32) && defined(WITH_SMALLPOT) && !defined(_DEBUG)
PotDestory(tinypot_);
#endif
SDL_Quit();
}
BP_Texture* Engine::createYUVTexture(int w, int h)
{
return SDL_CreateTexture(renderer_, SDL_PIXELFORMAT_YV12, SDL_TEXTUREACCESS_STREAMING, w, h);
}
void Engine::updateYUVTexture(BP_Texture* t, uint8_t* data0, int size0, uint8_t* data1, int size1, uint8_t* data2, int size2)
{
SDL_UpdateYUVTexture(t, nullptr, data0, size0, data1, size1, data2, size2);
}
BP_Texture* Engine::createARGBTexture(int w, int h)
{
return SDL_CreateTexture(renderer_, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, w, h);
}
BP_Texture* Engine::createARGBRenderedTexture(int w, int h)
{
return SDL_CreateTexture(renderer_, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_TARGET, w, h);
}
void Engine::updateARGBTexture(BP_Texture* t, uint8_t* buffer, int pitch)
{
SDL_UpdateTexture(t, nullptr, buffer, pitch);
}
void Engine::renderCopy(BP_Texture* t, int x, int y, int w, int h, double angle, int inPresent)
{
if (inPresent == 1)
{
x += rect_.x;
y += rect_.y;
}
BP_Rect r = { x, y, w, h };
renderCopy(t, nullptr, &r, angle);
}
void Engine::renderCopy(BP_Texture* t /*= nullptr*/, double angle)
{
SDL_RenderCopyEx(renderer_, t, nullptr, &rect_, angle, nullptr, SDL_FLIP_NONE);
render_times_++;
}
void Engine::renderPresent()
{
SDL_RenderPresent(renderer_);
}
void Engine::renderCopy(BP_Texture* t, BP_Rect* rect0, BP_Rect* rect1, double angle, int inPresent /*= 0*/)
{
SDL_RenderCopyEx(renderer_, t, rect0, rect1, angle, nullptr, SDL_FLIP_NONE);
render_times_++;
}
void Engine::getMouseState(int& x, int& y)
{
SDL_GetMouseState(&x, &y);
}
void Engine::setMouseState(int x, int y)
{
SDL_WarpMouseInWindow(window_, x, y);
}
int Engine::pollEvent(BP_Event& e)
{
int r = SDL_PollEvent(&e);
if (switch_)
{
if (e.type == BP_CONTROLLERBUTTONDOWN || e.type == BP_CONTROLLERBUTTONUP)
{
auto& key = e.cbutton.button;
if (key == BP_CONTROLLER_BUTTON_A) { key = BP_CONTROLLER_BUTTON_B; }
else if (key == BP_CONTROLLER_BUTTON_B) { key = BP_CONTROLLER_BUTTON_A; }
else if (key == BP_CONTROLLER_BUTTON_X) { key = BP_CONTROLLER_BUTTON_Y; }
else if (key == BP_CONTROLLER_BUTTON_Y) { key = BP_CONTROLLER_BUTTON_X; }
}
}
return r;
}
bool Engine::checkKeyPress(BP_Keycode key)
{
return SDL_GetKeyboardState(NULL)[SDL_GetScancodeFromKey(key)];
}
bool Engine::gameControllerGetButton(int key)
{
if (game_controller_)
{
if (switch_)
{
if (key == BP_CONTROLLER_BUTTON_A) { key = BP_CONTROLLER_BUTTON_B; }
else if (key == BP_CONTROLLER_BUTTON_B) { key = BP_CONTROLLER_BUTTON_A; }
else if (key == BP_CONTROLLER_BUTTON_X) { key = BP_CONTROLLER_BUTTON_Y; }
else if (key == BP_CONTROLLER_BUTTON_Y) { key = BP_CONTROLLER_BUTTON_X; }
}
return SDL_GameControllerGetButton(game_controller_, SDL_GameControllerButton(key));
}
return false;
}
int16_t Engine::gameControllerGetAxis(int axis)
{
if (game_controller_)
{
return SDL_GameControllerGetAxis(game_controller_, SDL_GameControllerAxis(axis));
}
return 0;
}
BP_Texture* Engine::createRectTexture(int w, int h, int style)
{
auto square_s = SDL_CreateRGBSurface(0, w, h, 32, RMASK, GMASK, BMASK, AMASK);
//SDL_FillRect(square_s, nullptr, 0xffffffff);
BP_Rect r = { 0, 0, 1, 1 };
auto& x = r.x;
auto& y = r.y;
uint8_t a = 0;
for (x = 0; x < w; x++)
{
for (y = 0; y < h; y++)
{
int c;
if (style == 0)
{
a = 100 + 150 * cos(M_PI * (1.0 * y / w - 0.5));
c = 0x00ffffff | (a << 24);
}
else if (style == 1)
{
c = 0xffffffff;
}
SDL_FillRect(square_s, &r, c);
/*if ((x - d / 2)*(x - d / 2) + (y - d / 2)*(y - d / 2) < (d / 2) * (d / 2))
{
SDL_FillRect(square_s, &r, 0x00ffffff | (a<<24));
}*/
}
}
auto square = SDL_CreateTextureFromSurface(renderer_, square_s);
setTextureBlendMode(square);
//setTextureAlphaMod(square, 128);
SDL_FreeSurface(square_s);
return square;
}
BP_Texture* Engine::createTextTexture(const std::string& fontname, const std::string& text, int size, BP_Color c)
{
auto font = TTF_OpenFont(fontname.c_str(), size);
if (!font)
{
return nullptr;
}
//SDL_Color c = { 255, 255, 255, 128 };
auto text_s = TTF_RenderUTF8_Blended(font, text.c_str(), c);
auto text_t = SDL_CreateTextureFromSurface(renderer_, text_s);
SDL_FreeSurface(text_s);
TTF_CloseFont(font);
return text_t;
}
int Engine::getWindowWidth()
{
int w, h;
getWindowSize(w, h);
return w;
}
int Engine::getWindowHeight()
{
int w, h;
getWindowSize(w, h);
return h;
}
bool Engine::isFullScreen()
{
Uint32 state = SDL_GetWindowFlags(window_);
full_screen_ = (state & SDL_WINDOW_FULLSCREEN) || (state & SDL_WINDOW_FULLSCREEN_DESKTOP);
return full_screen_;
}
void Engine::toggleFullscreen()
{
full_screen_ = !full_screen_;
if (full_screen_)
{
SDL_SetWindowFullscreen(window_, SDL_WINDOW_FULLSCREEN_DESKTOP);
}
else
{
SDL_SetWindowFullscreen(window_, 0);
}
renderClear();
}
BP_Texture* Engine::loadImage(const std::string& filename, int as_white)
{
//fmt1::print("%s", filename.c_str());
auto sur = IMG_Load(filename.c_str());
if (as_white) { toWhite(sur); }
auto tex = SDL_CreateTextureFromSurface(renderer_, sur);
SDL_FreeSurface(sur);
return tex;
}
BP_Texture* Engine::loadImageFromMemory(const std::string& content, int as_white)
{
auto rw = SDL_RWFromConstMem(content.data(), content.size());
auto sur = IMG_LoadTyped_RW(rw, 1, "png");
if (as_white) { toWhite(sur); }
auto tex = SDL_CreateTextureFromSurface(renderer_, sur);
SDL_FreeSurface(sur);
return tex;
}
void Engine::toWhite(BP_Surface* sur)
{
for (int i = 0; i < sur->w * sur->h; i++)
{
auto p = (uint32_t*)sur->pixels + i;
uint8_t r, g, b, a;
SDL_GetRGBA(*p, sur->format, &r, &g, &b, &a);
if (a == 0)
{
*p = SDL_MapRGBA(sur->format, 255, 255, 255, 0);
}
else
{
*p = SDL_MapRGBA(sur->format, 255, 255, 255, 255);
}
}
}
bool Engine::setKeepRatio(bool b)
{
return keep_ratio_ = b;
}
//创建一个专用于画场景的，后期放大
void Engine::createAssistTexture(int w, int h)
{
//tex_ = createYUVTexture(w, h);
tex2_ = createARGBRenderedTexture(w, h);
//tex_ = createARGBRenderedTexture(768, 480);
//SDL_SetTextureBlendMode(tex2_, SDL_BLENDMODE_BLEND);
}
void Engine::setPresentPosition(BP_Texture* tex)
{
if (!tex)
{
return;
}
int w_dst = 0, h_dst = 0;
int w_src = 0, h_src = 0;
getWindowSize(w_dst, h_dst);
queryTexture(tex, &w_src, &h_src);
w_src *= ratio_x_;
h_src *= ratio_y_;
if (keep_ratio_)
{
if (w_src == 0 || h_src == 0)
{
return;
}
double w_ratio = 1.0 * w_dst / w_src;
double h_ratio = 1.0 * h_dst / h_src;
double ratio = std::min(w_ratio, h_ratio);
if (w_ratio > h_ratio)
{
//宽度大，左右留空
rect_.x = (w_dst - w_src * ratio) / 2;
rect_.y = 0;
rect_.w = w_src * ratio;
rect_.h = h_dst;
}
else
{
//高度大，上下留空
rect_.x = 0;
rect_.y = (h_dst - h_src * ratio) / 2;
rect_.w = w_dst;
rect_.h = h_src * ratio;
}
}
else
{
rect_.x = 0;
rect_.y = 0;
rect_.w = w_dst;
rect_.h = h_dst;
}
}
BP_Texture* Engine::transBitmapToTexture(const uint8_t* src, uint32_t color, int w, int h, int stride)
{
auto s = SDL_CreateRGBSurface(0, w, h, 32, 0xff000000, 0xff0000, 0xff00, 0xff);
SDL_FillRect(s, nullptr, color);
auto p = (uint8_t*)s->pixels;
for (int x = 0; x < w; x++)
{
for (int y = 0; y < h; y++)
{
p[4 * (y * w + x)] = src[y * stride + x];
}
}
auto t = SDL_CreateTextureFromSurface(renderer_, s);
SDL_FreeSurface(s);
setTextureBlendMode(t);
setTextureAlphaMod(t, 192);
return t;
}
int Engine::showMessage(const std::string& content)
{
const SDL_MessageBoxButtonData buttons[] =
{
{ /* .flags, .buttonid, .text */ 0, 0, "no" },
{ SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT, 1, "yes" },
{ SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT, 2, "cancel" },
};
const SDL_MessageBoxColorScheme colorScheme =
{
{ /* .colors (.r, .g, .b) */
/* [SDL_MESSAGEBOX_COLOR_BACKGROUND] */
{ 255, 0, 0 },
/* [SDL_MESSAGEBOX_COLOR_TEXT] */
{ 0, 255, 0 },
/* [SDL_MESSAGEBOX_COLOR_BUTTON_BORDER] */
{ 255, 255, 0 },
/* [SDL_MESSAGEBOX_COLOR_BUTTON_BACKGROUND] */
{ 0, 0, 255 },
/* [SDL_MESSAGEBOX_COLOR_BUTTON_SELECTED] */
{ 255, 0, 255 }
}
};
const SDL_MessageBoxData messageboxdata =
{
SDL_MESSAGEBOX_INFORMATION, /* .flags */
NULL, /* .window */
title_.c_str(), /* .title */
content.c_str(), /* .message */
SDL_arraysize(buttons), /* .numbuttons */
buttons, /* .buttons */
&colorScheme /* .colorScheme */
};
int buttonid;
SDL_ShowMessageBox(&messageboxdata, &buttonid);
return buttonid;
}
void Engine::setWindowSize(int w, int h)
{
if (w <= 0 || h <= 0)
{
return;
}
win_w_ = std::min(max_x_ - min_x_, w);
win_h_ = std::min(max_y_ - min_y_, h);
SDL_SetWindowSize(window_, win_w_, win_h_);
//setPresentPosition();
getWindowSize(win_w_, win_h_);
//resetWindowsPosition();
//renderPresent();
}
void Engine::resetWindowPosition()
{
int x, y, w, h, x0, y0;
getWindowSize(w, h);
SDL_GetWindowPosition(window_, &x0, &y0);
x = std::max(min_x_, x0);
y = std::max(min_y_, y0);
if (x + w > max_x_)
{
x = std::min(x, max_x_ - w);
}
if (y + h > max_y_)
{
y = std::min(y, max_y_ - h);
}
if (x != x0 || y != y0)
{
setWindowPosition(x, y);
}
}
void Engine::setColor(BP_Texture* tex, BP_Color c)
{
SDL_SetTextureColorMod(tex, c.r, c.g, c.b);
setTextureAlphaMod(tex, c.a);
setTextureBlendMode(tex);
}
void Engine::fillColor(BP_Color color, int x, int y, int w, int h)
{
if (w < 0 || h < 0)
{
getWindowSize(w, h);
}
BP_Rect r{ x, y, w, h };
SDL_SetRenderDrawColor(renderer_, color.r, color.g, color.b, color.a);
SDL_SetRenderDrawBlendMode(renderer_, SDL_BLENDMODE_BLEND);
SDL_RenderFillRect(renderer_, &r);
}
void Engine::renderAssistTextureToWindow()
{
resetRenderTarget();
renderCopy(tex2_, nullptr, nullptr);
}
void Engine::renderSquareTexture(BP_Rect* rect, BP_Color color, uint8_t alpha)
{
color.a = alpha;
setColor(square_, color);
renderCopy(square_, nullptr, rect);
}
int Engine::playVideo(std::string filename)
{
if (filename == "")
{
return 0;
}
#if defined(_WIN32) && defined(WITH_SMALLPOT) && !defined(_DEBUG)
return PotInputVideo(tinypot_, (char*)filename.c_str());
#endif
return 0;
}
int Engine::saveScreen(const char* filename)
{
BP_Rect rect;
rect.x = 0;
rect.y = 0;
getWindowSize(rect.w, rect.h);
BP_Surface* sur = SDL_CreateRGBSurface(0, rect.w, rect.h, 32, RMASK, GMASK, BMASK, AMASK);
SDL_RenderReadPixels(renderer_, &rect, SDL_PIXELFORMAT_ARGB8888, sur->pixels, rect.w * 4);
SDL_SaveBMP(sur, filename);
SDL_FreeSurface(sur);
return 0;
}
int Engine::saveTexture(BP_Texture* tex, const char* filename)
{
BP_Rect rect;
rect.x = 0;
rect.y = 0;
queryTexture(tex, &rect.w, &rect.h);
setRenderTarget(tex);
BP_Surface* sur = SDL_CreateRGBSurface(0, rect.w, rect.h, 32, RMASK, GMASK, BMASK, AMASK);
SDL_RenderReadPixels(renderer_, &rect, SDL_PIXELFORMAT_ARGB8888, sur->pixels, rect.w * 4);
SDL_SaveBMP(sur, filename);
SDL_FreeSurface(sur);
resetRenderTarget();
return 0;
}
void Engine::setWindowPosition(int x, int y)
{
int w, h;
getWindowSize(w, h);
if (x == BP_WINDOWPOS_CENTERED)
{
x = min_x_ + (max_x_ - min_x_ - w) / 2;
}
if (y == BP_WINDOWPOS_CENTERED)
{
y = min_y_ + (max_y_ - min_y_ - h) / 2;
}
SDL_SetWindowPosition(window_, x, y);
}