void initUI(GameState* gs) {
msAlloc(20, &uiMat);
resizeUI(gs);
initRootWin();
windowProg = loadCombinedProgram("ui");
// windowDepthProg = loadCombinedProgram("uiDepth");
// uniform locations
icons = loadTexArray(iconFiles);
// VAO
glGenVertexArrays(1, &windowVAO);
glBindVertexArray(windowVAO);
// // texture index
// glEnableVertexAttribArray(2);
// glVertexAttribIPointer(2, 1, GL_UNSIGNED_INT, sizeof(WindowVertex), (void*)offsetof(WindowVertex, texIndex));
float vertices[] = {
0.0, 0.0, 0.0, 0,0,
0.0, 1.0, 0.0, 0,1,
1.0, 0.0, 0.0, 1,0,
1.0, 1.0, 0.0, 1,1
};
glGenBuffers(1, &windowVBO);
glBindBuffer(GL_ARRAY_BUFFER, windowVBO);
// position
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(WindowVertex), 0);
// texture coords
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(WindowVertex), (void*)offsetof(WindowVertex, u));
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindVertexArray(0);
}
void initGame(XStuff* xs, GameState* gs) {
int ww, wh;
glerr("left over error on game init");
gs->activeTool = 0;
gs->debugMode = 0;
gs->sunSpeed = 0;
ww = xs->winAttr.width;
wh = xs->winAttr.height;
gs->screen.wh.x = (float)ww;
gs->screen.wh.y = (float)wh;
gs->screen.aspect = gs->screen.wh.x / gs->screen.wh.y;
gs->screen.resized = 0;
printf("w: %d, h: %d\n", ww, wh);
glEnable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
initTexBuffers(gs, 0);
glBindTexture(GL_TEXTURE_2D, 0);
glGenFramebuffers(1, &gs->framebuffer);
glBindFramebuffer(GL_FRAMEBUFFER, gs->framebuffer);
glexit("fbo creation");
// The depth buffer
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, gs->diffuseTexBuffer, 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_TEXTURE_2D, gs->normalTexBuffer, 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT2, GL_TEXTURE_2D, gs->selectionTexBuffer, 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, gs->depthTexBuffer, 0);
glexit("fb tex2d");
//glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D, gs->depthTexBuffer, 0);
GLenum DrawBuffers[] = {
GL_COLOR_ATTACHMENT0,
GL_COLOR_ATTACHMENT1,
GL_COLOR_ATTACHMENT2
};
glDrawBuffers(3, DrawBuffers);
glexit("drawbuffers");
GLenum status;
status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
if(status != GL_FRAMEBUFFER_COMPLETE) {
printf("fbo status invalid\n");
exit(1);
}
printf("FBO created.\n");
shadingProg = loadCombinedProgram("shading");
initFSQuad();
// check some prerequisites
// GLint MaxDrawBuffers = 0;
// glGetIntegerv(GL_MAX_DRAW_BUFFERS, &MaxDrawBuffers);
// printf("MAX_DRAW_BUFFERS: %d\n", MaxDrawBuffers);
// if(MaxDrawBuffers < 4) {
// fprintf(stderr, "FATAL: GL_MAX_DRAW_BUFFERS is too low: %d. Minimum required value is 4.\n", MaxDrawBuffers);
// exit(3);
// };
getPrintGLEnum(GL_MAX_COLOR_ATTACHMENTS, "meh");
getPrintGLEnum(GL_MAX_DRAW_BUFFERS, "meh");
getPrintGLEnum(GL_MAX_FRAMEBUFFER_WIDTH, "meh");
getPrintGLEnum(GL_MAX_FRAMEBUFFER_HEIGHT, "meh");
getPrintGLEnum(GL_MAX_FRAMEBUFFER_LAYERS, "meh");
getPrintGLEnum(GL_MAX_FRAMEBUFFER_SAMPLES, "meh");
getPrintGLEnum(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, "meh");
getPrintGLEnum(GL_MAX_TESS_EVALUATION_TEXTURE_IMAGE_UNITS, "meh");
getPrintGLEnum(GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS, "meh");
getPrintGLEnum(GL_MAX_TEXTURE_IMAGE_UNITS, "meh");
getPrintGLEnum(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, "meh");
getPrintGLEnum(GL_MAX_ARRAY_TEXTURE_LAYERS, "meh");
getPrintGLEnum(GL_MAX_SAMPLES, "meh");
// set up matrix stacks
MatrixStack* view, *proj;
view = &gs->view;
proj = &gs->proj;
msAlloc(2, view);
msAlloc(2, proj);
msIdent(view);
msIdent(proj);
// perspective matrix, pretty standard
// msPerspective(60, 1.0, 01000.0f, 100000.0f, proj);
// msOrtho(0, 1, 0, 1, .01, 100000, proj);
gs->zoom = -760.0;
gs->direction = 0.0f;
gs->lookCenter.x = 128;
gs->lookCenter.y = 128;
// initialize all those magic globals
initMap(&gs->map);
initUI(gs);
initMarker();
// text rendering stuff
arial = LoadFont("Arial", 64, NULL);
glerr("clearing before text program load");
textProg = loadCombinedProgram("text");
unsigned int colors[] = {
0xFF0000FF, 2,
0x00FF00FF, 4,
0x0000FFFF, INT_MAX
};
strRI = prepareText(arial, "FPS: --", -1, colors);
/*
OBJContents cube;
loadOBJFile("assets/models/untitled.obj", 0, &cube);
Mesh* cubem = OBJtoMesh(&cube);
*/
}
