int main(int argc, char ** argv)
{
//Demo of splitting code into multiple .cpp and .h files
std::cout << "add 5 and 7: " << add(5, 7) << std::endl;
bool quit = false;
bool isBallLaunched = false;
bool isBallHit = false;
//bool isBallControllable = true;
int counter = 0;
int r, g, b;
r = g = b = 0;
const int PADDLE_VELOCITY = 2;
int paddleVelocity = PADDLE_VELOCITY;
const int BALL_VELOCITY_LIMIT = 5; //maximum ball velocity
//int ballVelocity = 0;
//int xBallVelocity = 1;
//int yBallVelocity = 1;
//int ballInitialXDirection = 0;
//int ballInitialYDirection = 0;
//SDL_Renderer* renderer = nullptr;
SDL_Rect paddle = {};
SDL_Rect ball = {};
SDL_Rect screenRect = {};
screenRect.x = screenRect.y = 0;
struct xy { int x, y; };
//const xy BALL_VELOCITY = {1, 1};
xy ballVelocity = { 1, 1 };
const xy BALL_ACCELERATION = { 5, 5 };
//xy ballAcceleration = {};
const int PADDLE_ACCELERATION = 5;
int paddleAcceleration = PADDLE_ACCELERATION;
//const xy PADDLE_ACCELERATION = {1,1};
xy ballDirection = { 1, 1 };
enum direction { STATIONARY, LEFT, RIGHT };
direction currentPaddleDirection = STATIONARY;
direction previousPaddleDirection = STATIONARY;
//paddle.x = paddle.y = 600; //get and use screen dimensions. start paddle in middle of screen.
paddle.x = 600;
paddle.y = 400;
paddle.w = 100;
paddle.h = 20;
ball.h = ball.w = 10;
ball.x = paddle.x + paddle.w / 2 - ball.w / 2; //centralise the ball on top of the paddle
ball.y = paddle.y - ball.h; //centralise the ball on top of the paddle
int buttonCount = 0;
Mix_Chunk * ballBounceSound = nullptr;
SDL_Init(SDL_INIT_EVERYTHING);
SDL_Event event;
SDL_Window * screen = SDL_CreateWindow("My First Window",
SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 800, 600,
SDL_WINDOW_MAXIMIZED | SDL_WINDOW_RESIZABLE);
SDL_Renderer * renderer = SDL_CreateRenderer(screen, -1, 0);
SDL_GetRendererOutputSize(renderer, &screenRect.w, &screenRect.h);
SDL_SetRenderDrawColor(renderer, r, g, b, 255);
SDL_RenderClear(renderer);
IMG_Init(IMG_INIT_PNG);
SDL_Surface* fighterPlane = IMG_Load("images/Plane1.png");
SDL_Texture * fighterPlaneTexture = SDL_CreateTextureFromSurface(renderer, fighterPlane);
SDL_RenderCopy(renderer, fighterPlaneTexture, NULL, NULL);
SDL_RenderPresent(renderer);
if (Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 2048) < 0)
{
std::cout << "SDL_mixer could not initialize! SDL_mixer Error: " << Mix_GetError() << std::endl;
}
ballBounceSound = Mix_LoadWAV("sounds/ball_bounce.wav");
while (!quit)
{
//SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
if (buttonCount % 3 == 0)
{
r = 255;
g = 0;
b = 0;
}
else if (buttonCount % 3 == 1)
{
r = 0;
g = 255;
b = 0;
}
else if (buttonCount % 3 == 2)
{
r = 0;
g = 0;
b = 255;
}
SDL_SetRenderDrawColor(renderer, r, g, b, 255);
SDL_RenderClear(renderer);
SDL_PollEvent(&event);
switch (event.type)
{
case SDL_KEYDOWN:
switch (event.key.keysym.sym)
{
case SDLK_UP:
/*
paddle.y -= paddleVelocity;
if(!ballLaunched)
{
ball.y -= paddleVelocity;
//ballVelocity.y = -yBallVelocity;
}
//SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
//++buttonCount;
*/
break;
case SDLK_DOWN:
/*
paddle.y += paddleVelocity;
if(!ballLaunched)
{
ball.y += paddleVelocity;
ballVelocity.y = yBallVelocity;
}
//SDL_SetRenderDrawColor(renderer, 0, 255, 0, 255);
//++buttonCount;
*/
break;
case SDLK_LEFT:
currentPaddleDirection = LEFT;
if (currentPaddleDirection != previousPaddleDirection)
paddleVelocity = 0; //stop paddle movement when its direction is changed, so that it moves off gradually in the new direction
//if(paddle.x <= screenRect.x && paddle.x >= screenRect.x - 1)
//{
// if(currentPaddleDirection == LEFT)
// {
// paddleVelocity = 0;
// paddleAcceleration = PADDLE_ACCELERATION * 0;
// }
//}
//else if(currentPaddleDirection)
//{
paddleVelocity += paddleAcceleration;
paddle.x -= paddleVelocity;
//}
if (!isBallLaunched)
{
ball.x -= paddleVelocity;
// set the ball's direction for launch
ballDirection.x = -1; //ball needs to move left
ballDirection.y = -1; //ball needs to move up
//ballVelocity.x = BALL_VELOCITY.x;
//ballVelocity.y = BALL_VELOCITY.y;
//ballVelocity.x = BALL_VELOCITY.x * -1;
//ballVelocity.y = BALL_VELOCITY.y * -1;
//ballAcceleration.x = BALL_ACCELERATION.x;
//ballAcceleration.y = BALL_ACCELERATION.y;
}
//else if(isBallHit) ballDirection.x = -1; //when ball hits paddle while paddle is moving left, ball moves left
previousPaddleDirection = LEFT;
//if(ballLaunched)
//{
// ball.x -= ballVelocity;
// ball.y -= ballVelocity;
//}
//else ball.x -= paddleVelocity;
//SDL_SetRenderDrawColor(renderer, 0, 0, 255, 255);
//++buttonCount;
break;
case SDLK_RIGHT:
currentPaddleDirection = RIGHT;
if (currentPaddleDirection != previousPaddleDirection)
paddleVelocity = 0; //stop paddle movement when its direction is changed, so that it moves off gradually in the new direction
paddleVelocity += paddleAcceleration;
paddle.x += paddleVelocity;
if (!isBallLaunched)
{
ball.x += paddleVelocity;
// set the ball's direction for launch
ballDirection.x = 1; //ball needs to move right
ballDirection.y = -1; //ball needs to move up
//ballVelocity.x = BALL_VELOCITY.x;
//ballVelocity.y = BALL_VELOCITY.y;
//ballVelocity.y = BALL_VELOCITY.y * -1;
//ballAcceleration.x = BALL_ACCELERATION.x;
//ballAcceleration.y = BALL_ACCELERATION.y;
}
//else if(isBallHit) ballDirection.x = 1; //when ball hits paddle while paddle is moving right, move the ball right
previousPaddleDirection = RIGHT;
//if(ballLaunched)
//{
// ball.x += ballVelocity;
// ball.y += ballVelocity;
//}
//else
// ball.x += paddleVelocity;
//SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
//++buttonCount;
break;
case SDLK_SPACE:
if (currentPaddleDirection != STATIONARY) //don't launch the ball when paddle hasn't been moved
isBallLaunched = true;
//std::cout << "spacebar pressed" << std::endl;
break;
}
break;
case SDL_MOUSEBUTTONDOWN:
switch (event.button.button)
{
case SDL_BUTTON_LEFT:
SDL_SetRenderDrawColor(renderer, r, g, b, 255);
++buttonCount;
//std::cout << buttonCount << ": " << r << "," << g << "," << b << std::endl;
break;
}
break;
case SDL_QUIT:
quit = true;
//std::cout << "quit" << std::endl;
break;
}
//collision detection for paddle against sides of screen
//don't allow the paddle to move further if it hits the sides of the screen
//if(paddle.x <= screenRect.x || (paddle.x + paddle.w >= screenRect.x + screenRect.w))
//{
// if(currentPaddleDirection == previousPaddleDirection)
// {
// paddleVelocity = 0;
// paddleAcceleration = PADDLE_ACCELERATION * 0;
// }
// else paddleAcceleration = PADDLE_ACCELERATION;
//}
if (isBallLaunched)
{
isBallHit = false;
//calculate acceleration and speed, with speed limit
//ballVelocity.x += BALL_ACCELERATION.x;
//ballVelocity.y += BALL_ACCELERATION.y;
if (ballVelocity.x >= BALL_VELOCITY_LIMIT)
ballVelocity.x += BALL_ACCELERATION.x * 0;
else ballVelocity.x += BALL_ACCELERATION.x;
if (ballVelocity.y >= BALL_VELOCITY_LIMIT)
ballVelocity.y += BALL_ACCELERATION.y * 0;
else ballVelocity.y += BALL_ACCELERATION.y;
ball.x += ballVelocity.x * ballDirection.x;
ball.y += ballVelocity.y * ballDirection.y;
//std::cout << "ballVelocity x,y: " << ballVelocity.x << "," <<
//ballVelocity.y << std::endl;
//std::cout << "ball x,y: " << ball.x << "," <<
//ball.y << std::endl;
//collision with screen top or bottom
if (ball.y <= screenRect.y || (ball.y + ball.h) >= screenRect.h)
//std::cout << "collided with screen top or bottom" << std::endl;
//ballVelocity.y = -ballVelocity.y;
{
Mix_PlayChannel(-1, ballBounceSound, 0);
ballDirection.y = ballDirection.y * -1;
}
//collision with screen left or right
if (ball.x <= screenRect.x || (ball.x + ball.w) >= screenRect.w)
//std::cout << "collided with screen left or right" << std::endl;
//ballVelocity.x = -ballVelocity.x;
{
Mix_PlayChannel(-1, ballBounceSound, 0);
ballDirection.x = ballDirection.x * -1;
}
//collision detection between ball and paddle
//check if ball's bottom is within paddle's top and 1 pixel more than paddle's top
//and check if ball's x position is within the range of paddle's x position and paddle's width
if ((ball.y + ball.h >= paddle.y && ball.y + ball.h <= paddle.y + paddle.h) && ((ball.x >= paddle.x) && ball.x + ball.w <= paddle.x + paddle.w))
{
isBallHit = true;
Mix_PlayChannel(-1, ballBounceSound, 0);
ballDirection.y = ballDirection.y * -1;
//paddle direction controls direction the ball will move in
if (currentPaddleDirection == RIGHT) ballDirection.x = 1;
else ballDirection.x = -1;
}
}
SDL_RenderClear(renderer);
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
SDL_RenderFillRect(renderer, &paddle);
SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
SDL_RenderFillRect(renderer, &ball);
SDL_RenderPresent(renderer);
//std::cout << counter << std::endl;
counter++;
SDL_Delay(50);
}//game loop ends
//SDL_Delay(3000);
// game code eventually goes here
SDL_Quit();
return 0;
}
void SFAsset::MoveVertical(float speed) {
// For this to stop instances going off-screen
// need to get height and width of screen
int w, h;
SDL_GetRendererOutputSize(sf_window->getRenderer(), &w, &h);
// Handle movement for type player
if(SFASSET_PLAYER == type) {
Vector2 c = *(bbox->centre) + Vector2(0.0f, speed);
if(!(c.getY() < 64.0f) && !(c.getY()-18.0f > h)) {
bbox->centre.reset();
bbox->centre = make_shared<Vector2>(c);
}
}
// Handle movement for type projectile
if(SFASSET_PROJECTILE == type){
Vector2 c = *(bbox->centre) + Vector2(0.0f, speed);
if(!(c.getY() > h + 32.0f)) {
bbox->centre.reset();
bbox->centre = make_shared<Vector2>(c);
}
else {
this->SetNotAlive();
}
}
// Handle movement for type powerup
if(SFASSET_POWERUP == type){
Vector2 c = *(bbox->centre) + Vector2(0.0f, speed);
if(!(c.getY() > h + 32.0f)) {
bbox->centre.reset();
bbox->centre = make_shared<Vector2>(c);
}
else {
this->SetNotAlive();
}
}
// Handle movement for type projectile
if(SFASSET_EPROJECTILE == type){
Vector2 c = *(bbox->centre) + Vector2(0.0f, speed);
if(!(c.getY() > h + 32.0f)) {
bbox->centre.reset();
bbox->centre = make_shared<Vector2>(c);
}
else {
this->SetNotAlive();
}
}
// Handle movement for type coin
if(SFASSET_COIN == type) {
Vector2 c = *(bbox->centre) + Vector2(0.0f, speed);
if(!(c.getY() < 0.0f)) {
bbox->centre.reset();
bbox->centre = make_shared<Vector2>(c);
}
else{
auto pos = Point2(rand() % 600 + 32, rand() % 400 + 600);
this->SetPosition(pos);
}
}
// Handle movement for the background
if(SFASSET_STARS == type) {
Vector2 c = *(bbox->centre) + Vector2(0.0f, speed);
if(!(c.getY() < 0.0f)) {
bbox->centre.reset();
bbox->centre = make_shared<Vector2>(c);
}
else{
auto pos = Point2(320, 1600);
this->SetPosition(pos);
}
}
// Handle movement for type alien
if(SFASSET_ALIEN == type) {
Vector2 c = *(bbox->centre) + Vector2(0.0f, speed);
if(!(c.getY() < 0.0f)) {
bbox->centre.reset();
bbox->centre = make_shared<Vector2>(c);
}
else{
auto pos = Point2(rand() % 600 + 32, rand() % 400 + 600);
this->SetPosition(pos);
this->SetHealth(15);
}
}
}
// Handing object collisions
int SFAsset::HandleCollision() {
// Collisions for projectiles
if(SFASSET_PROJECTILE == type) {
SetNotAlive();
}
// Handle collision for the powerup
if(SFASSET_POWERUP == type) {
SetNotAlive();
}
// Collisions for aliens
if(SFASSET_ALIEN == type){
int canvas_w, canvas_h;
SDL_GetRendererOutputSize(sf_window->getRenderer(), &canvas_w, &canvas_h);
// For removing enemy health and checking if it died
if(this->GetHealth() > 0){
// Hurt the enemy for 5 HP
this->SetHealth(this->GetHealth() - 5);
// Get HP as string
int tempHP = this->GetHealth();
// Convert the HP to string form
string HPTempString;
ostringstream HPConvert;
HPConvert << tempHP;
HPTempString = HPConvert.str();
// Tell player it was hurt
cout << "Hurt enemy " << this->GetId() << " for 5 HP. (EnemyHP: " << (this->GetHealth() <= 0 ? "DEAD" : HPTempString) << ")" << endl;
// Do another check because we can reach 0, but it won't check until next collision.
if(this->GetHealth() <= 0){
// Enemy died, so set new position and health
auto pos = Point2(rand() % 600 + 32, rand() % 400 + 600);
this->SetPosition(pos);
this->SetHealth(10);
// Return special condition back to call
return 1;
}
}
else{
// Enemy died, so set new position and health
auto pos = Point2(rand() % 600 + 32, rand() % 400 + 600);
this->SetPosition(pos);
this->SetHealth(15);
// Tell player
cout << "Enemy " << this->GetId() << " died!" << endl;
// Return special condition back to call
return 1;
}
}
// Collisions for coins
if(SFASSET_COIN == type) {
// Kill the coin
this->SetNotAlive();
}
return 0;
}
void
SDLRenderer::do_take_screenshot()
{
// [Christoph] TODO: Yes, this method also takes care of the actual disk I/O. Split it?
int width;
int height;
if (SDL_GetRendererOutputSize(m_renderer, &width, &height) != 0)
{
log_warning << "SDL_GetRenderOutputSize failed: " << SDL_GetError() << std::endl;
}
else
{
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
Uint32 rmask = 0xff000000;
Uint32 gmask = 0x00ff0000;
Uint32 bmask = 0x0000ff00;
Uint32 amask = 0x000000ff;
#else
Uint32 rmask = 0x000000ff;
Uint32 gmask = 0x0000ff00;
Uint32 bmask = 0x00ff0000;
Uint32 amask = 0xff000000;
#endif
SDL_Surface* surface = SDL_CreateRGBSurface(0, width, height, 32,
rmask, gmask, bmask, amask);
if (!surface)
{
log_warning << "SDL_CreateRGBSurface failed: " << SDL_GetError() << std::endl;
}
else
{
int ret = SDL_RenderReadPixels(m_renderer, NULL,
SDL_PIXELFORMAT_ABGR8888,
surface->pixels,
surface->pitch);
if (ret != 0)
{
log_warning << "SDL_RenderReadPixels failed: " << SDL_GetError() << std::endl;
}
else
{
// save screenshot
static const std::string writeDir = PHYSFS_getWriteDir();
static const std::string dirSep = PHYSFS_getDirSeparator();
static const std::string baseName = "screenshot";
static const std::string fileExt = ".bmp";
std::string fullFilename;
for (int num = 0; num < 1000; num++) {
std::ostringstream oss;
oss << baseName;
oss << std::setw(3) << std::setfill('0') << num;
oss << fileExt;
std::string fileName = oss.str();
fullFilename = writeDir + dirSep + fileName;
if (!PHYSFS_exists(fileName.c_str())) {
SDL_SaveBMP(surface, fullFilename.c_str());
log_info << "Wrote screenshot to \"" << fullFilename << "\"" << std::endl;
return;
}
}
log_warning << "Did not save screenshot, because all files up to \"" << fullFilename << "\" already existed" << std::endl;
}
}
}
}
/**
* The logical coordinates in the game assume that the screen
* is indexed from 0,0 in the bottom left corner. The blittable
* coordinates of the screen map 0,0 to the top left corner. We
* need to convert between the two coordinate spaces. We assume
* that there is a 1-to-1 quantisation.
*/
Vector2 GameSpaceToScreenSpace(SDL_Renderer* renderer, Vector2 &r) {
int w, h;
SDL_GetRendererOutputSize(renderer, &w, &h);
return Vector2 (r.getX(), (h - r.getY()));
}
void jt_text_render (jt_text *text, SDL_Renderer *renderer)
{
int i = 0;
SDL_Rect source_rect;
SDL_Rect dest_rect;
uint32_t text_width;
uint32_t text_height;
uint32_t border_width;
uint32_t border_height;
uint32_t left_start;
uint32_t right_shift;
uint32_t top_start;
uint32_t bottom_shift;
uint32_t x_start;
uint32_t y_start;
uint32_t scale;
int output_width;
int output_height;
/* Position in tile-space */
uint32_t tile_x;
uint32_t tile_y;
uint32_t line_size;
uint32_t remaining_space;
uint32_t word_length;
if (text->text == NULL)
return;
/* Calculate text destination area */
SDL_GetRendererOutputSize (renderer, &output_width, &output_height);
border_width = output_width * JT_BORDER_X;
border_height = output_height * JT_BORDER_Y;
/* Select font size */
scale = (output_width - border_width * 2) / (text->size * 17 - 1);
if (scale < 1)
scale = 1;
/* We have a goal size of text->size, but we can actually fit
* line_size tiles at our best font size. */
line_size = (output_width - border_width * 2) / (17 * scale);
/* X Axis */
text_width = 17 * scale * text->length - scale;
left_start = border_width;
right_shift = output_width - border_width * 2 - text_width;
x_start = left_start + text->x_position * right_shift;
/* Y Axis */
text_height = 32 * scale;
top_start = border_height;
bottom_shift = output_height - border_height * 2 - text_height;
y_start = top_start + text->y_position * bottom_shift;
tile_x = 0;
tile_y = 0;
for (i = text->visible_index; text->text[i]; i++)
{
/* Select character from font */
source_rect.x = 16 * (text->text[i] - ' ');
source_rect.y = 0;
source_rect.w = 16;
source_rect.h = 32;
/* Calculate tile destination */
dest_rect.x = x_start + (16 + 1) * tile_x * scale;
dest_rect.y = y_start + (32 + 8) * tile_y * scale;
dest_rect.w = 16 * scale;
dest_rect.h = 32 * scale;
/* For now, animation is assumed. Perhaps make it optional in
* the future */
jt_text_animate (&dest_rect);
if (i < text->index && text->typed_texture)
SDL_RenderCopy (renderer, text->typed_texture, &source_rect, &dest_rect);
else if (i >= text->index && text->untyped_texture)
SDL_RenderCopy (renderer, text->untyped_texture, &source_rect, &dest_rect);
/* Calculate next tile positon */
if (text->text[i] == '\x7F')
{
tile_x = 0;
tile_y++;
}
else if (text->text[i] == ' ')
{
/* Is there enough room for the next word? */
remaining_space = line_size - tile_x - 1;
word_length = min ( strchr (&text->text[i + 1], ' ') - &text->text[i + 1],
strlen (&text->text[i + 1]));
if (word_length > remaining_space)
{
tile_x = 0;
tile_y++;
}
else
{
tile_x++;
}
}
else
{
tile_x++;
}
/* Have we managed to run out of line? */
if (tile_x == line_size)
{
tile_x = 0;
tile_y++;
}
/* Scroll the text */
if (tile_x == 0 && tile_y == 1 && i < text->index)
{
text->visible_index = i + 1;
}
}
}
size2
SDLRenderer::outputSize() {
size2 size;
SDL_GetRendererOutputSize(_renderer, &size.width, &size.height);
return size;
}
static void CreateUpscaledTexture(boolean force)
{
int w, h;
int h_upscale, w_upscale;
static int h_upscale_old, w_upscale_old;
SDL_Texture *new_texture, *old_texture;
// Get the size of the renderer output. The units this gives us will be
// real world pixels, which are not necessarily equivalent to the screen's
// window size (because of highdpi).
if (SDL_GetRendererOutputSize(renderer, &w, &h) != 0)
{
I_Error("Failed to get renderer output size: %s", SDL_GetError());
}
// When the screen or window dimensions do not match the aspect ratio
// of the texture, the rendered area is scaled down to fit. Calculate
// the actual dimensions of the rendered area.
if (w * actualheight < h * SCREENWIDTH)
{
// Tall window.
h = w * actualheight / SCREENWIDTH;
}
else
{
// Wide window.
w = h * SCREENWIDTH / actualheight;
}
// Pick texture size the next integer multiple of the screen dimensions.
// If one screen dimension matches an integer multiple of the original
// resolution, there is no need to overscale in this direction.
w_upscale = (w + SCREENWIDTH - 1) / SCREENWIDTH;
h_upscale = (h + SCREENHEIGHT - 1) / SCREENHEIGHT;
// Minimum texture dimensions of 320x200.
if (w_upscale < 1)
{
w_upscale = 1;
}
if (h_upscale < 1)
{
h_upscale = 1;
}
LimitTextureSize(&w_upscale, &h_upscale);
// Create a new texture only if the upscale factors have actually changed.
if (h_upscale == h_upscale_old && w_upscale == w_upscale_old && !force)
{
return;
}
h_upscale_old = h_upscale;
w_upscale_old = w_upscale;
// Set the scaling quality for rendering the upscaled texture to "linear",
// which looks much softer and smoother than "nearest" but does a better
// job at downscaling from the upscaled texture to screen.
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear");
new_texture = SDL_CreateTexture(renderer,
pixel_format,
SDL_TEXTUREACCESS_TARGET,
w_upscale*SCREENWIDTH,
h_upscale*SCREENHEIGHT);
old_texture = texture_upscaled;
texture_upscaled = new_texture;
if (old_texture != NULL)
{
SDL_DestroyTexture(old_texture);
}
}
int main(int argc, char**argv)
{
SDL_Window* win = NULL;
SDL_Renderer* ren = NULL;
SDL_Texture* tex = NULL;
SDL_Event eve;
char*smoothing="nearest"; //nearest or linear
unsigned width = 3000;
unsigned height = 4000;
unsigned i,r,g,b,x,y;
int sizew,sizeh; //actual window size
uint32_t*buff=NULL;
srand(time(NULL));
assert(buff = calloc(width*height,sizeof(uint32_t)));
for(x=0; x<width; x++)
{
for(y=0; y<height; y++)
{
r = x % 256;
g = y % 256; //i / 256;
b = 0; //rand() % 256;
//buff[y*width+x] = (r<<16)+(g<<8)+b;
setpixel(buff,x,y,width,r,g,b);
}
}
if (SDL_Init(SDL_INIT_VIDEO) != 0)
{
printf("SDL_Init Error: %s\n",SDL_GetError());
return 1;
}
assert(win = SDL_CreateWindow("Hello World!",
SDL_WINDOWPOS_UNDEFINED,SDL_WINDOWPOS_UNDEFINED,
100, 100,SDL_WINDOW_SHOWN|SDL_WINDOW_MAXIMIZED|SDL_WINDOW_RESIZABLE));
//SDL_WINDOW_FULLSCREEN_DESKTOP));
assert(ren = SDL_CreateRenderer(win, -1, 0));
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, smoothing); //"linear" or "nearest"
//SDL_RenderSetLogicalSize(ren, width, height);-
assert(tex = SDL_CreateTexture(ren,SDL_PIXELFORMAT_ARGB8888,SDL_TEXTUREACCESS_STREAMING, width, height));
SDL_UpdateTexture(tex, NULL, buff, width * sizeof (uint32_t));
SDL_RenderClear(ren);
SDL_RenderCopy(ren, tex, NULL, NULL);
SDL_RenderPresent(ren);
SDL_PollEvent(&eve);
SDL_RenderClear(ren);
SDL_RenderCopy(ren, tex, NULL, NULL);
SDL_RenderPresent(ren);
SDL_Rect src;
SDL_Rect dst;
double vx = (double)width / 2.0;
double vy = (double)height / 2.0;
double scl = 0.5;
src.x = 0;
src.y = 0;
src.w = width;
src.h = height;
SDL_GetWindowSize(win,&sizew,&sizeh);
printf("window size: %d,%d\n",sizew,sizeh);
SDL_GetWindowMaximumSize(win,&sizew,&sizeh);
printf("max window size: %d,%d\n",sizew,sizeh);
SDL_GetRendererOutputSize(ren,&sizew,&sizeh);
printf("renderer size: %d,%d\n",sizew,sizeh);
while(1)
{
SDL_WaitEvent(&eve);
if(eve.type == SDL_QUIT) break;
if(eve.type == SDL_KEYDOWN)
{
//quit
if(eve.key.keysym.sym == SDLK_q) break;
if(eve.key.keysym.sym == SDLK_ESCAPE) break;
//scaling method
if(eve.key.keysym.sym == SDLK_n) SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY,"nearest");
if(eve.key.keysym.sym == SDLK_l) SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY,"linear");
//reset view
if(eve.key.keysym.sym == SDLK_RETURN || eve.key.keysym.sym == SDLK_RETURN2)
{
vx = (double)width / 2.0;
vy = (double)height / 2.0;
scl = 0.5;
}
//zoom in / out
if(eve.key.keysym.sym == SDLK_PLUS || eve.key.keysym.sym == SDLK_KP_PLUS)
{
scl /= 1.01;
}
if(eve.key.keysym.sym == SDLK_MINUS || eve.key.keysym.sym == SDLK_KP_MINUS)
{
scl *= 1.01;
}
}
if(eve.type == SDL_MOUSEBUTTONDOWN)
{
printf("(%d,%d)\n",eve.button.x,eve.button.y);
}
dst.x = vx - scl * (double)width;
dst.y = vy - scl * (double)height;
dst.w = 2.0 * scl * (double)width;
dst.h = 2.0 * scl * (double)height;
SDL_RenderClear(ren);
SDL_RenderCopy(ren, tex, &src, &dst);
SDL_RenderPresent(ren);
}
SDL_Quit();
return 0;
}
ScreenServiceImpl::ScreenServiceImpl(SDL_Renderer *renderer) {
this->renderer = renderer;
SDL_GetRendererOutputSize(renderer, &width, &height);
}
void
display::start(
__in_opt const mirra::parameter_t ¶meter
)
{
std::string title;
uint32_t height, width;
mirra::parameter_t::const_iterator iter;
mirra::object_parameter_t::const_iterator attribute_iter;
if(!m_initialized) {
THROW_MIRRA_DISPLAY_EXCEPTION(MIRRA_DISPLAY_EXCEPTION_UNINITIALIZED);
}
if(m_started) {
THROW_MIRRA_DISPLAY_EXCEPTION(MIRAR_DISPLAY_EXCEPTION_STARTED);
}
height = DISPLAY_PARAMETER_DEFAULT_HEIGHT;
title = DISPLAY_PARAMETER_DEFAULT_TITLE;
width = DISPLAY_PRAAMETER_DEFAULT_WIDTH;
iter = parameter.find(OBJECT_DISPLAY);
if(iter != parameter.end()) {
attribute_iter = iter->second.find(DISPLAY_PARAMETER_HEIGHT);
if(attribute_iter != iter->second.end()) {
if(attribute_iter->second.type != DATA_UNSIGNED) {
THROW_MIRRA_DISPLAY_EXCEPTION_FORMAT(MIRRA_DISPLAY_EXCEPTION_INVALID_PARAMETER,
"%s: %s (expecting %s)", DISPLAY_PARAMETER_STRING(DISPLAY_PARAMETER_HEIGHT),
DATA_STRING(attribute_iter->second.type), DATA_STRING(DATA_UNSIGNED));
}
height = attribute_iter->second.data.uvalue;
}
attribute_iter = iter->second.find(DISPLAY_PARAMETER_TITLE);
if(attribute_iter != iter->second.end()) {
if(attribute_iter->second.type != DATA_STRING) {
THROW_MIRRA_DISPLAY_EXCEPTION_FORMAT(MIRRA_DISPLAY_EXCEPTION_INVALID_PARAMETER,
"%s: %s (expecting %s)", DISPLAY_PARAMETER_STRING(DISPLAY_PARAMETER_TITLE),
DATA_STRING(attribute_iter->second.type), DATA_STRING(DATA_STRING));
}
title = (attribute_iter->second.data.strvalue ? attribute_iter->second.data.strvalue :
STRING_EMPTY);
}
attribute_iter = iter->second.find(DISPLAY_PARAMETER_WIDTH);
if(attribute_iter != iter->second.end()) {
if(attribute_iter->second.type != DATA_UNSIGNED) {
THROW_MIRRA_DISPLAY_EXCEPTION_FORMAT(MIRRA_DISPLAY_EXCEPTION_INVALID_PARAMETER,
"%s: %s (expecting %s)", DISPLAY_PARAMETER_STRING(DISPLAY_PARAMETER_WIDTH),
DATA_STRING(attribute_iter->second.type), DATA_STRING(DATA_UNSIGNED));
}
width = attribute_iter->second.data.uvalue;
}
}
m_window = SDL_CreateWindow(STRING_CHECK(title), SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
width, height, WINDOW_INIT_FLAGS);
if(!m_window) {
THROW_MIRRA_DISPLAY_EXCEPTION_FORMAT(MIRRA_DISPLAY_EXCEPTION_EXTERNAL,
"SDL_CreateWindow: %s", SDL_GetError());
}
m_window_renderer = SDL_CreateRenderer(m_window, SCALAR_INVALID(int), WINDOW_RENDERER_INIT_FLAGS);
if(!m_window_renderer) {
THROW_MIRRA_DISPLAY_EXCEPTION_FORMAT(MIRRA_DISPLAY_EXCEPTION_EXTERNAL,
"SDL_CreateRenderer: %s", SDL_GetError());
}
if(SDL_GetRendererOutputSize(m_window_renderer, &m_renderer_width, &m_renderer_height)) {
THROW_MIRRA_DISPLAY_EXCEPTION_FORMAT(MIRRA_DISPLAY_EXCEPTION_EXTERNAL,
"SDL_GetRendererOutputSize: %s", SDL_GetError());
}
if(SDL_SetRenderDrawBlendMode(m_window_renderer, SDL_BLENDMODE_BLEND)) {
THROW_MIRRA_DISPLAY_EXCEPTION_FORMAT(MIRRA_DISPLAY_EXCEPTION_EXTERNAL,
"SDL_SetRenderDrawBlendMode: %s", SDL_GetError());
}
m_window_texture = SDL_CreateTexture(m_window_renderer, SDL_PIXELFORMAT_BGRA8888, SDL_TEXTUREACCESS_STREAMING,
width, height);
if(!m_window_texture) {
THROW_MIRRA_DISPLAY_EXCEPTION_FORMAT(MIRRA_DISPLAY_EXCEPTION_EXTERNAL,
"SDL_CreateTexture: %s", SDL_GetError());
}
if(SDL_SetTextureBlendMode(m_window_texture, SDL_BLENDMODE_BLEND)) {
THROW_MIRRA_DISPLAY_EXCEPTION_FORMAT(MIRRA_DISPLAY_EXCEPTION_EXTERNAL,
"SDL_SetTextureBlendMode: %s", SDL_GetError());
}
m_started = true;
clear();
}
/**
* @brief Create RGB Surface, then Converts to RGBA on the fly.
* @param surfaceType
*/
void SurfaceManager::createSurface(int surfaceType)
{
// Run Through Surface Alias and create surface.
switch(surfaceType)
{
// Handle Individual Character Surfaces
case SURFACE_CHARACTER:
case SURFACE_CURSOR_ON:
case SURFACE_CURSOR_OFF:
{
// If Exists, Recreate it.
if(surfaceExists(surfaceType))
{
delSurface(surfaceType);
}
// Create Surface with Smart pointer.
surface_ptr surface(
new Surfaces(
SDL_CreateRGBSurface(
SDL_SWSURFACE,
m_characterWidth, m_characterHeight, m_surfaceBits,
m_redMask, m_greenMask, m_blueMask, m_alphaMask
)
)
);
convertAndAdd(surfaceType, surface);
}
break;
// Handles Main Screen Surfaces
case SURFACE_MAIN_SCREEN:
{
// If Exists, Recreate it.
if(surfaceExists(surfaceType))
{
delSurface(surfaceType);
}
window_manager_ptr window = m_weak_window_manager.lock();
if (window)
{
// Create Surface with Smart pointer
surface_ptr surface(
new Surfaces(
SDL_CreateRGBSurface(
SDL_SWSURFACE,
window->getWindowWidth(), window->getWindowHeight(), m_surfaceBits,
m_redMask, m_greenMask, m_blueMask, m_alphaMask
)
)
);
convertAndAdd(surfaceType, surface);
}
}
break;
// Handles Screen Surface Scaled to Match Texture Dimensions.
case SURFACE_MAIN_SCALED:
{
// If Exists, Recreate it.
if(surfaceExists(surfaceType))
{
delSurface(surfaceType);
}
// Handle to Window Manager
window_manager_ptr window = m_weak_window_manager.lock();
if (!window)
{
return;
}
// Get the Actual size of the Renderer to match the surface for scaling.
int screenWidth, screenHeight;
SDL_GetRendererOutputSize(
window->getRenderer(),
&screenWidth,
&screenHeight
);
// Create Surface with Smart pointer
surface_ptr surface(
new Surfaces(
SDL_CreateRGBSurface(
SDL_SWSURFACE,
screenWidth, screenHeight, m_surfaceBits,
m_redMask, m_greenMask, m_blueMask, m_alphaMask
)
)
);
convertAndAdd(surfaceType, surface);
}
break;
// Handles Last Row of a Surface for Scrolling
// Currently used for Main Screen, might need scaled version instead?
case SURFACE_BOTTOM_ROW:
{
// If Exists, Recreate it.
if(surfaceExists(surfaceType))
{
delSurface(surfaceType);
}
if(!surfaceExists(SURFACE_MAIN_SCREEN))
{
SDL_Log("Main Screen Doesn't Exist for Bottom Row Surface!");
assert(false);
}
// Create Surface with Smart pointer, uses with of Main Screen, Must exist first!
surface_ptr surface(
new Surfaces(
SDL_CreateRGBSurface(
SDL_SWSURFACE,
m_surfaceList[SURFACE_MAIN_SCREEN]->getSurface()->w, m_characterHeight, m_surfaceBits,
m_redMask, m_greenMask, m_blueMask, m_alphaMask
)
)
);
convertAndAdd(surfaceType, surface);
}
break;
default:
break;
}
}
/**
* @brief Creates / Recreate Textures
* @param textureType
* @param surface
*/
void SurfaceManager::createTexture(int textureType, SDL_Surface *surface)
{
// Handle to Window Manager
window_manager_ptr window = m_weak_window_manager.lock();
if (!window)
{
return;
}
switch(textureType)
{
case TEXTURE_MAIN_SCREEN:
{
// If Exists, Recreate it.
if(textureExists(textureType))
{
delTexture(textureType);
}
// Handle to Window Manager
window_manager_ptr window = m_weak_window_manager.lock();
if (!window)
{
return;
}
// Get the Actual size of the Renderer to match the surface for scaling.
// m_is_scalling_surface!! Add Toggle for Scaling here,
// Otherwise should use same size as main surface!
int screenWidth, screenHeight;
SDL_GetRendererOutputSize(
window->getRenderer(),
&screenWidth,
&screenHeight
);
// Create Texture: SDL_TEXTUREACCESS_STREAMING
texture_ptr texture(
new Textures(
SDL_CreateTexture(
window->getRenderer(),
SDL_PIXELFORMAT_ARGB8888,
SDL_TEXTUREACCESS_STREAMING,
screenWidth, screenHeight
)
)
);
addTexture(textureType, texture);
// Set the Blend Mode of the Texture NONE
if(SDL_SetTextureBlendMode(
texture->getTexture(),
SDL_BLENDMODE_NONE) < 0)
{
SDL_Log("Error Setting Blend on Texture - %s", SDL_GetError());
}
}
break;
case TEXTURE_SELECTION:
case TEXTURE_HILIGHT:
{
// If Exists, Recreate it.
if(textureExists(textureType))
{
delTexture(textureType);
}
// Create Texture: SDL_TEXTUREACCESS_TARGET
texture_ptr texture(
new Textures(
SDL_CreateTexture(
window->getRenderer(),
SDL_PIXELFORMAT_ARGB8888,
SDL_TEXTUREACCESS_TARGET,
surface->w, surface->h
)
)
);
addTexture(textureType, texture);
// Set the Blend Mode of the Texture ADD
if(SDL_SetTextureBlendMode(
texture->getTexture(),
SDL_BLENDMODE_ADD) < 0)
{
SDL_Log("Error Setting Blend on Texture - %s", SDL_GetError());
}
}
break;
default:
break;
}
}
/**
* \fn void getMousePosition(SDL_Renderer * pRenderer, Input * pInput, SDL_Rect * camera, int * x, int *y)
* \brief Réajuste la taille de la caméra pour un rétrécissement de l'image.
*
* \param[in] pRenderer, le renderer de la fenêtre courante.
*
* \param[in] pInput, les inputs utilisateur.
*
* \param[in] camera, le rect de la camera courante.
*
* \param[in] x, le pointeur sur un int pour stocker x.
*
* \param[in] y, le pointeur sur un int pour stocker y.
*
* \returns void
*/
void getMousePosition(SDL_Renderer * pRenderer, Input * pInput, SDL_Rect * camera, int * x, int *y){
int w = 0, h = 0;
SDL_GetRendererOutputSize(pRenderer, &w, &h);
x = (int)(((float)pInput->cursor.now.x / w)*camera->w) + camera->x;
y = (int)(((float)pInput->cursor.now.y / h)*camera->h) + camera->y;
}