adding gfx and ui stuff

2026-06-04 18:22:30 +02:00
parent d676c50961
commit 4dfac3f82f
48 changed files with 26734 additions and 3 deletions
--- a/examples/gfx.c
+++ b/examples/gfx.c
@@ -0,0 +1,131 @@
+#define DJSTD_BASIC_ENTRY
+
+#include "../core.c"
+#include "../gfx/gfx.c"
+
+typedef struct WindowData WindowData;
+struct WindowData {
+    Renderer *renderer;
+};
+
+void windowOnEvent(OS_WindowEvent *e, OS_Window *window) {
+    switch (e->kind) {
+        case OS_WindowEventKind_Resize: {
+            WindowData *data = (WindowData*)window->userData;
+            data->renderer->width = e->resize.width;
+            data->renderer->height = e->resize.height;
+            break;
+        };
+        default: {
+            break;
+        };
+    }
+}
+
+void ui_GreenBox(UI_Context *ui, int32 width, int32 height)  {
+    UI(.width=width, .height=height, .color=COLOR_GREEN, .padding=UI_PadUniform(10)) {
+        UI(.flags=UI_Flag_HeightGrow | UI_Flag_WidthGrow | UI_Flag_Vertical, .childGap=10) {
+            UI_SetTxtAttr(.fontSize=40, .alignment=UI_TxtAlign_Center);
+            UI_Rect box = UI_RectAttr(.flags=UI_Flag_WidthGrow | UI_Flag_HeightGrow, .color=COLOR_RED);
+            UI_Rect boxHover = box;
+            boxHover.color = COLOR_BLUE;
+            UI_AttachTxtAttr(&box, UI_TxtAttr(.color=COLOR_CYAN));
+            UI_AttachTxtAttr(&boxHover, UI_TxtAttr(.color=COLOR_YELLOW));
+
+            UI(.flags=UI_Flag_HeightGrow | UI_Flag_WidthGrow, .childGap=10) {
+                UI_FromRect(ui_HoverRect(ui, box, boxHover)) {
+                    UI_Txt(s("A"));
+                }
+                UI_FromRect(ui_HoverRect(ui, box, boxHover)) {
+                    UI_Txt(s("B"));
+                }
+            }
+
+            UI(.flags=UI_Flag_HeightGrow | UI_Flag_WidthGrow, .childGap=10) {
+                UI_FromRect(ui_HoverRect(ui, box, boxHover)) {
+                    UI_Txt(s("C"));
+                }
+                UI_FromRect(ui_HoverRect(ui, box, boxHover)) {
+                    UI_Txt(s("D"));
+                }
+            }
+        }
+    }
+}
+
+void ui_Main(UI_Context *ui, int32 width, int32 height) {
+    UI(.flags=UI_Flag_HeightGrow | UI_Flag_WidthGrow, .padding=UI_PadUniform(10), .childGap=10) {
+        ui_GreenBox(ui, width, height);
+        ui_GreenBox(ui, width, height);
+        ui_GreenBox(ui, width, height);
+        ui_GreenBox(ui, width, height);
+        ui_GreenBox(ui, width, height);
+    }
+}
+
+int djstd_entry(Arena *arena, StringList args) {
+    WindowData windowData = {
+        .renderer=NULL,
+    };
+
+    Arena *uiArena = arenaAlloc(Megabytes(128));
+
+    OS_WindowInitResult windowInit = os_windowInit(arena, (OS_WindowInitParams){
+        .name=s("Hello DJ Stdlib Graphics"),
+        .width=800,
+        .height=600,
+        .data=&windowData,
+        .eventHandler=windowOnEvent,
+    });
+
+    if (!windowInit.valid) {
+        return 1;
+    }
+
+    OS_Window *window = windowInit.result;
+
+    Scene mainScene = createScene(arena);
+    Camera cam = createCamera(window->width, window->height);
+
+    Font kodeMono = createFont(arena, s("./gfx/assets/fonts/KodeMono.ttf"), 96);
+    Shader phongShader = createShader(s("./gfx/assets/shaders/phong.vertex.glsl"), s("./gfx/assets/shaders/phong.fragment.glsl"));
+    Shader solidShader = createShader(s("./gfx/assets/shaders/rect.vertex.glsl"), s("./gfx/assets/shaders/rect.fragment.glsl"));
+    Shader textShader = createShader(s("./gfx/assets/shaders/text.vertex.glsl"), s("./gfx/assets/shaders/text.fragment.glsl"));
+
+    Renderer renderer = createRenderer(arena, &mainScene, &cam, createSceneGraphNode(&mainScene));
+    UI_Context ui = ui_initContext(uiArena, &renderer);
+
+    renderer.phongShader = &phongShader;
+    renderer.solidShader = &solidShader;
+    renderer.textShader = &textShader;
+    renderer.activeFont = &kodeMono;
+    windowData.renderer = &renderer;
+
+    OS_Input currInput = {0};
+    OS_Input prevInput = {0};
+
+    while (!os_windowShouldClose(window)) {
+        os_windowFrameBegin(window);
+
+        prevInput = currInput;
+        os_windowGetInput(window, &currInput);
+        ui.input = &currInput;
+
+        Render(&renderer) {
+            // Render graphics shit
+
+            UI_Pass(&ui) {
+                ui_Main(&ui);
+            }
+        }
+
+        if (currInput.keyboard.escape) {
+            break;
+        }
+
+        os_windowSwapBuffers(window);
+        os_windowFrameEnd(window);
+    }
+
+    return 0;
+}