void CUIFrameLineWnd::Draw()
{
if(m_bTextureVisible)
DrawElements ();
inherited::Draw ();
}
void sexyFillScreen(const ShaderState &ss, const View& view, uint color0, uint color1, float alpha)
{
if (alpha < epsilon || (color0 == 0 && color1 == 0))
return;
glDepthMask(GL_FALSE);
glDisable(GL_DEPTH_TEST);
const float2 ws = 1.2f * view.sizePoints;
const float2 ps = -0.1f * view.sizePoints;
const float t = globals.renderTime / 20.f;
const uint a = ALPHAF(alpha);
// 1 2
// 0 3
const VertexPosColor v[] = {
VertexPosColor(ps, a|rgb2bgr(lerpXXX(color0, color1, unorm_sin(t)))),
VertexPosColor(ps + justY(ws), a|rgb2bgr(lerpXXX(color0, color1, unorm_sin(3.f * t)))),
VertexPosColor(ps + ws, a|rgb2bgr(lerpXXX(color0, color1, unorm_sin(5.f * t)))),
VertexPosColor(ps + justX(ws), a|rgb2bgr(lerpXXX(color0, color1, unorm_sin(7.f * t)))),
};
static const uint i[] = {0, 1, 2, 0, 2, 3};
DrawElements(ShaderColorDither::instance(), ss, GL_TRIANGLES, v, i, arraySize(i));
glEnable(GL_DEPTH_TEST);
glDepthMask(GL_TRUE);
}
void CUIFrameWindow::Draw()
{
if (m_bTextureVisible)
DrawElements ();
inherited::Draw();
}
// Draw a solid-color 1x1 quad at the origin of the XY plane (in model space)
void QuadShaderProgram::DrawQuad( const Color::ColorVector& ac_roColor )
{
// save previous program
const ShaderProgram& oPrevious = ShaderProgram::Current();
Instance().Use();
// OpenGL uses column vectors, while the MathLibrary transforms are made for
// use with row vectors. However, OpenGL stores matrix data in column-major
// order, while the MathLibrary matrices store data in row-major order, so
// feeding data from the latter to the former is an automatic transposition.
glUniformMatrix4dv( Instance().m_iModelViewProjectionID, 1, false,
&( GameEngine::ModelViewProjection()[0][0] ) );
// Set other uniforms and draw
glUniform4fv( Instance().m_iColorID, 1, &( ac_roColor[0] ) );
DrawElements();
// return to previous program
oPrevious.Use();
}
GL_APICALL void GL_APIENTRY glDrawElements (GLenum mode, GLsizei count, GLenum type, const GLvoid* indices)
{
CONTEXT_EXEC(DrawElements(mode, count, type, indices));
}
int main() {
char gameTitle[] = "pong";
int titleLength = strlen(gameTitle);
Display *display = XOpenDisplay(NULL);
if (!display) return 1;
DisplayInfo(display);
int screenNumber = DefaultScreen(display);
unsigned long white = WhitePixel(display, screenNumber);
unsigned long black = BlackPixel(display, screenNumber);
Window window = XCreateSimpleWindow(
display,
DefaultRootWindow(display),
0, 0, // origin
200, 200, // size
0, black, // border
white); // background color
XStoreName(display, window, gameTitle);
XFontStruct *fontInfo = XLoadQueryFont(display, "10x20");
XGCValues values;
values.font = fontInfo->fid;
values.foreground = XBlackPixel(display, screenNumber);
unsigned long valueMask = GCFont+GCForeground;
GC graphicalContext = XCreateGC(display, window, valueMask, &values);
XMapWindow(display, window);
Atom wmDeleteMessage = XInternAtom(display, "WM_DELETE_WINDOW", 0);
XSetWMProtocols(display, window, &wmDeleteMessage, 1);
XEvent event;
int running = 1;
long eventMask = ExposureMask | StructureNotifyMask | KeyPressMask | KeyReleaseMask;
XSelectInput(display, window, eventMask);
while (running) {
XNextEvent(display, (XEvent *)&event);
switch (event.type) {
case Expose: {
/* if we have several other expose events waiting, don't redraw. */
/* we will do the redrawing when we receive the last of them. */
if (event.xexpose.count > 0) break;
XWindowAttributes windowAttributes;
int fontDirection, fontAscent, fontDescent;
XCharStruct textStructure;
XTextExtents(
fontInfo,
gameTitle,
titleLength,
&fontDirection,
&fontAscent,
&fontDescent,
&textStructure);
XGetWindowAttributes(display, window, &windowAttributes);
int textX = (windowAttributes.width - textStructure.width) / 2;
int textY = (windowAttributes.height - (textStructure.ascent + textStructure.descent)) / 2;
XDrawString(
display,
window,
graphicalContext,
textX,
textY,
gameTitle,
titleLength);
DrawElements(display, window, graphicalContext);
} break;
case KeyPress: {
/* translate the key code to a key symbol. */
KeySym keySymbol = XKeycodeToKeysym(display, event.xkey.keycode, 0);
switch (keySymbol) {
}
} break;
case ClientMessage: {
if (event.xclient.data.l[0] == wmDeleteMessage) {
running = 0;
}
} break;
default:
break;
}
}
XDestroyWindow(display, window);
XCloseDisplay(display);
return 0;
}
