void
DrawLogoCursor(void)
{
static GLfloat texMinX, texMinY;
static GLfloat texMaxX, texMaxY;
static int w, h;
int x, y;
if (!cursor_texture) {
SDL_Surface *image;
GLfloat texcoord[4];
/* Load the image (could use SDL_image library here) */
image = SDL_LoadBMP(LOGO_FILE);
if (image == NULL) {
return;
}
w = image->w;
h = image->h;
/* Convert the image into an OpenGL texture */
cursor_texture = SDL_GL_LoadTexture(image, texcoord);
/* Make texture coordinates easy to understand */
texMinX = texcoord[0];
texMinY = texcoord[1];
texMaxX = texcoord[2];
texMaxY = texcoord[3];
/* We don't need the original image anymore */
SDL_FreeSurface(image);
/* Make sure that the texture conversion is okay */
if (!cursor_texture) {
return;
}
}
/* Move the image around */
SDL_GetMouseState(&x, &y);
x -= w / 2;
y -= h / 2;
/* Show the image on the screen */
SDL_GL_Enter2DMode();
glBindTexture(GL_TEXTURE_2D, cursor_texture);
glBegin(GL_TRIANGLE_STRIP);
glTexCoord2f(texMinX, texMinY);
glVertex2i(x, y);
glTexCoord2f(texMaxX, texMinY);
glVertex2i(x + w, y);
glTexCoord2f(texMinX, texMaxY);
glVertex2i(x, y + h);
glTexCoord2f(texMaxX, texMaxY);
glVertex2i(x + w, y + h);
glEnd();
SDL_GL_Leave2DMode();
}
void
DrawLogoTexture(void)
{
static GLfloat texMinX, texMinY;
static GLfloat texMaxX, texMaxY;
static int x = 0;
static int y = 0;
static int w, h;
static int delta_x = 1;
static int delta_y = 1;
SDL_Surface *screen = SDL_GetVideoSurface();
if (!global_texture) {
SDL_Surface *image;
GLfloat texcoord[4];
/* Load the image (could use SDL_image library here) */
image = SDL_LoadBMP(LOGO_FILE);
if (image == NULL) {
return;
}
w = image->w;
h = image->h;
/* Convert the image into an OpenGL texture */
global_texture = SDL_GL_LoadTexture(image, texcoord);
/* Make texture coordinates easy to understand */
texMinX = texcoord[0];
texMinY = texcoord[1];
texMaxX = texcoord[2];
texMaxY = texcoord[3];
/* We don't need the original image anymore */
SDL_FreeSurface(image);
/* Make sure that the texture conversion is okay */
if (!global_texture) {
return;
}
}
/* Move the image around */
x += delta_x;
if (x < 0) {
x = 0;
delta_x = -delta_x;
} else if ((x + w) > screen->w) {
x = screen->w - w;
delta_x = -delta_x;
}
y += delta_y;
if (y < 0) {
y = 0;
delta_y = -delta_y;
} else if ((y + h) > screen->h) {
y = screen->h - h;
delta_y = -delta_y;
}
/* Show the image on the screen */
SDL_GL_Enter2DMode();
glBindTexture(GL_TEXTURE_2D, global_texture);
glBegin(GL_TRIANGLE_STRIP);
glTexCoord2f(texMinX, texMinY);
glVertex2i(x, y);
glTexCoord2f(texMaxX, texMinY);
glVertex2i(x + w, y);
glTexCoord2f(texMinX, texMaxY);
glVertex2i(x, y + h);
glTexCoord2f(texMaxX, texMaxY);
glVertex2i(x + w, y + h);
glEnd();
SDL_GL_Leave2DMode();
}
int main(int argc, char *argv[])
{
char *argv0 = argv[0];
SDL_Window *window;
SDL_GLContext context;
TTF_Font *font;
SDL_Surface *text;
int ptsize;
int i, done;
SDL_Color white = { 0xFF, 0xFF, 0xFF, 0 };
SDL_Color black = { 0x00, 0x00, 0x00, 0 };
SDL_Color *forecol;
SDL_Color *backcol;
GLenum gl_error;
GLuint texture;
int x, y, w, h;
GLfloat texcoord[4];
GLfloat texMinX, texMinY;
GLfloat texMaxX, texMaxY;
float color[8][3]= {{ 1.0, 1.0, 0.0},
{ 1.0, 0.0, 0.0},
{ 0.0, 0.0, 0.0},
{ 0.0, 1.0, 0.0},
{ 0.0, 1.0, 1.0},
{ 1.0, 1.0, 1.0},
{ 1.0, 0.0, 1.0},
{ 0.0, 0.0, 1.0}};
float cube[8][3]= {{ 0.5, 0.5, -0.5},
{ 0.5, -0.5, -0.5},
{-0.5, -0.5, -0.5},
{-0.5, 0.5, -0.5},
{-0.5, 0.5, 0.5},
{ 0.5, 0.5, 0.5},
{ 0.5, -0.5, 0.5},
{-0.5, -0.5, 0.5}};
SDL_Event event;
int renderstyle;
int dump;
enum {
RENDER_LATIN1,
RENDER_UTF8,
RENDER_UNICODE
} rendertype;
char *message;
/* Look for special execution mode */
dump = 0;
/* Look for special rendering types */
renderstyle = TTF_STYLE_NORMAL;
rendertype = RENDER_LATIN1;
/* Default is black and white */
forecol = &black;
backcol = &white;
for ( i=1; argv[i] && argv[i][0] == '-'; ++i ) {
if ( strcmp(argv[i], "-utf8") == 0 ) {
rendertype = RENDER_UTF8;
} else
if ( strcmp(argv[i], "-unicode") == 0 ) {
rendertype = RENDER_UNICODE;
} else
if ( strcmp(argv[i], "-b") == 0 ) {
renderstyle |= TTF_STYLE_BOLD;
} else
if ( strcmp(argv[i], "-i") == 0 ) {
renderstyle |= TTF_STYLE_ITALIC;
} else
if ( strcmp(argv[i], "-u") == 0 ) {
renderstyle |= TTF_STYLE_UNDERLINE;
} else
if ( strcmp(argv[i], "-dump") == 0 ) {
dump = 1;
} else
if ( strcmp(argv[i], "-fgcol") == 0 ) {
int r, g, b;
if ( sscanf (argv[++i], "%d,%d,%d", &r, &g, &b) != 3 ) {
fprintf(stderr, Usage, argv0);
return(1);
}
forecol->r = (Uint8)r;
forecol->g = (Uint8)g;
forecol->b = (Uint8)b;
} else
if ( strcmp(argv[i], "-bgcol") == 0 ) {
int r, g, b;
if ( sscanf (argv[++i], "%d,%d,%d", &r, &g, &b) != 3 ) {
fprintf(stderr, Usage, argv0);
return(1);
}
backcol->r = (Uint8)r;
backcol->g = (Uint8)g;
backcol->b = (Uint8)b;
} else {
fprintf(stderr, Usage, argv0);
return(1);
}
}
argv += i;
argc -= i;
/* Check usage */
if ( ! argv[0] ) {
fprintf(stderr, Usage, argv0);
return(1);
}
/* Initialize the TTF library */
if ( TTF_Init() < 0 ) {
fprintf(stderr, "Couldn't initialize TTF: %s\n",SDL_GetError());
SDL_Quit();
return(2);
}
/* Open the font file with the requested point size */
ptsize = 0;
if ( argc > 1 ) {
ptsize = atoi(argv[1]);
}
if ( ptsize == 0 ) {
i = 2;
ptsize = DEFAULT_PTSIZE;
} else {
i = 3;
}
font = TTF_OpenFont(argv[0], ptsize);
if ( font == NULL ) {
fprintf(stderr, "Couldn't load %d pt font from %s: %s\n",
ptsize, argv[0], SDL_GetError());
cleanup(2);
}
TTF_SetFontStyle(font, renderstyle);
if( dump ) {
for( i = 48; i < 123; i++ ) {
SDL_Surface* glyph = NULL;
glyph = TTF_RenderGlyph_Shaded( font, i, *forecol, *backcol );
if( glyph ) {
char outname[64];
sprintf( outname, "glyph-%d.bmp", i );
SDL_SaveBMP( glyph, outname );
}
}
cleanup(0);
}
/* Set a 640x480 video mode */
window = SDL_CreateWindow("glfont",
SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED,
WIDTH, HEIGHT, SDL_WINDOW_OPENGL);
if ( window == NULL ) {
fprintf(stderr, "Couldn't create window: %s\n", SDL_GetError());
cleanup(2);
}
context = SDL_GL_CreateContext(window);
if ( context == NULL ) {
fprintf(stderr, "Couldn't create OpenGL context: %s\n", SDL_GetError());
cleanup(2);
}
/* Render and center the message */
if ( argc > 2 ) {
message = argv[2];
} else {
message = DEFAULT_TEXT;
}
switch (rendertype) {
case RENDER_LATIN1:
text = TTF_RenderText_Blended(font, message, *forecol);
break;
case RENDER_UTF8:
text = TTF_RenderUTF8_Blended(font, message, *forecol);
break;
case RENDER_UNICODE:
{
/* This doesn't actually work because you can't pass
UNICODE text in via command line, AFAIK, but...
*/
Uint16 unicode_text[BUFSIZ];
int index;
for ( index = 0; (message[0] || message[1]); ++index ) {
unicode_text[index] = ((Uint8 *)message)[0];
unicode_text[index] <<= 8;
unicode_text[index] |= ((Uint8 *)message)[1];
message += 2;
}
text = TTF_RenderUNICODE_Blended(font,
unicode_text, *forecol);
}
break;
default:
text = NULL; /* This shouldn't happen */
break;
}
if ( text == NULL ) {
fprintf(stderr, "Couldn't render text: %s\n", SDL_GetError());
TTF_CloseFont(font);
cleanup(2);
}
x = (WIDTH - text->w)/2;
y = (HEIGHT - text->h)/2;
w = text->w;
h = text->h;
printf("Font is generally %d big, and string is %hd big\n",
TTF_FontHeight(font), text->h);
/* Convert the text into an OpenGL texture */
glGetError();
texture = SDL_GL_LoadTexture(text, texcoord);
if ( (gl_error = glGetError()) != GL_NO_ERROR ) {
/* If this failed, the text may exceed texture size limits */
printf("Warning: Couldn't create texture: 0x%x\n", gl_error);
}
/* Make texture coordinates easy to understand */
texMinX = texcoord[0];
texMinY = texcoord[1];
texMaxX = texcoord[2];
texMaxY = texcoord[3];
/* We don't need the original text surface anymore */
SDL_FreeSurface(text);
/* Initialize the GL state */
glViewport( 0, 0, WIDTH, HEIGHT );
glMatrixMode( GL_PROJECTION );
glLoadIdentity( );
glOrtho( -2.0, 2.0, -2.0, 2.0, -20.0, 20.0 );
glMatrixMode( GL_MODELVIEW );
glLoadIdentity( );
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
glShadeModel(GL_SMOOTH);
/* Wait for a keystroke, and blit text on mouse press */
done = 0;
while ( ! done ) {
while ( SDL_PollEvent(&event) ) {
switch (event.type) {
case SDL_MOUSEMOTION:
x = event.motion.x - w/2;
y = event.motion.y - h/2;
break;
case SDL_KEYDOWN:
case SDL_QUIT:
done = 1;
break;
default:
break;
}
}
/* Clear the screen */
glClearColor(1.0, 1.0, 1.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
/* Draw the spinning cube */
glBegin( GL_QUADS );
glColor3fv(color[0]);
glVertex3fv(cube[0]);
glColor3fv(color[1]);
glVertex3fv(cube[1]);
glColor3fv(color[2]);
glVertex3fv(cube[2]);
glColor3fv(color[3]);
glVertex3fv(cube[3]);
glColor3fv(color[3]);
glVertex3fv(cube[3]);
glColor3fv(color[4]);
glVertex3fv(cube[4]);
glColor3fv(color[7]);
glVertex3fv(cube[7]);
glColor3fv(color[2]);
glVertex3fv(cube[2]);
glColor3fv(color[0]);
glVertex3fv(cube[0]);
glColor3fv(color[5]);
glVertex3fv(cube[5]);
glColor3fv(color[6]);
glVertex3fv(cube[6]);
glColor3fv(color[1]);
glVertex3fv(cube[1]);
glColor3fv(color[5]);
glVertex3fv(cube[5]);
glColor3fv(color[4]);
glVertex3fv(cube[4]);
glColor3fv(color[7]);
glVertex3fv(cube[7]);
glColor3fv(color[6]);
glVertex3fv(cube[6]);
glColor3fv(color[5]);
glVertex3fv(cube[5]);
glColor3fv(color[0]);
glVertex3fv(cube[0]);
glColor3fv(color[3]);
glVertex3fv(cube[3]);
glColor3fv(color[4]);
glVertex3fv(cube[4]);
glColor3fv(color[6]);
glVertex3fv(cube[6]);
glColor3fv(color[1]);
glVertex3fv(cube[1]);
glColor3fv(color[2]);
glVertex3fv(cube[2]);
glColor3fv(color[7]);
glVertex3fv(cube[7]);
glEnd( );
/* Rotate the cube */
glMatrixMode(GL_MODELVIEW);
glRotatef(5.0, 1.0, 1.0, 1.0);
/* Show the text on the screen */
SDL_GL_Enter2DMode(WIDTH, HEIGHT);
glBindTexture(GL_TEXTURE_2D, texture);
glBegin(GL_TRIANGLE_STRIP);
glTexCoord2f(texMinX, texMinY); glVertex2i(x, y );
glTexCoord2f(texMaxX, texMinY); glVertex2i(x+w, y );
glTexCoord2f(texMinX, texMaxY); glVertex2i(x, y+h);
glTexCoord2f(texMaxX, texMaxY); glVertex2i(x+w, y+h);
glEnd();
SDL_GL_Leave2DMode();
/* Swap the buffers so everything is visible */
SDL_GL_SwapWindow(window);
}
SDL_GL_DeleteContext(context);
TTF_CloseFont(font);
cleanup(0);
/* Not reached, but fixes compiler warnings */
return 0;
}
bool YGS2kHalt()
{
SDL_Event ev;
SDLKey *key;
/* テキストレイヤーの描画 */
for ( int i = 0 ; i < YGS_TEXTLAYER_MAX ; i ++ )
{
TextBlt(i);
}
#if SDL_USE_OPENGL
SDL_GL_Leave2DMode();
SDL_GL_SwapBuffers();
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
SDL_GL_Enter2DMode();
#else
SDL_Rect dest;
/* バックサーフェスをフロントに転送 */
SDL_Flip( s_pScreenSurface );
/* 画面塗りつぶし */
dest.x = 0;
dest.y = 0;
dest.w = s_iWinWidth;
dest.h = s_iWinHeight;
SDL_FillRect(s_pScreenSurface, &dest, 0x00000000);
#endif
/* イベント処理 */
while(SDL_PollEvent(&ev) )
{
switch(ev.type){
case SDL_QUIT: // ウィンドウの×ボタンが押された時など
return false;
break;
case SDL_KEYDOWN: // キーボードからの入力があった時
{
key = &(ev.key.keysym.sym); // どのキーが押されたかを取得
if ( *key == 27 ) // ESCキー
{
return false;
}
}
break;
}
}
/* フレームレート待ち */
while (s_uTimeCount + (1000 / s_uNowFPS) >= SDL_GetTicks())
{
SDL_Delay(0);
};
/* フレームレート計算 */
s_uFPSCnting ++;
s_uNowFrame ++;
s_uTimeCount = SDL_GetTicks();
if ( s_uFPSCount + 1000 <= SDL_GetTicks() )
{
s_uFPS = s_uFPSCnting;
s_uFPSCnting = 0;
s_uFPSCount = SDL_GetTicks();
}
/* 画面ずらし量の反映 */
s_iOffsetX = s_iNewOffsetX;
s_iOffsetY = s_iNewOffsetY;
return true;
}