wip zig orca bindings

samples/zig-sample/src/main.zig

@@ -2,49 +2,71 @@ const std = @import("std");
 const oc = @import("orca");
 
 const Vec2 = oc.Vec2;
+const Mat2x3 = oc.Mat2x3;
 
 var surface: oc.Surface = undefined;
 var canvas: oc.Canvas = undefined;
+var font: oc.Font = undefined;
+var orca_image: oc.Image = undefined;
 
 var counter: u32 = 0;
-var lastSeconds: f64 = 0;
+var last_seconds: f64 = 0;
+var frame_size: Vec2 = .{ .x = 0, .y = 0 };
+
+var rotation_demo: f32 = 0;
 
 export fn oc_on_init() void {
-    oc.windowSetTitle("zig calc");
+    oc.windowSetTitle("zig sample");
     oc.windowSetSize(Vec2{ .x = 480, .y = 640 });
 
-    oc.logInfo("current platform: {}", .{oc.getHostPlatform()}, @src());
+    oc.log.info("current platform: {}", .{oc.getHostPlatform()}, @src());
 
     surface = oc.Surface.canvas();
     canvas = oc.Canvas.create();
 
     oc.assert(oc.Canvas.nil().isNil() == true, "nil canvas should be nil", .{}, @src());
     oc.assert(canvas.isNil() == false, "created canvas should not be nil", .{}, @src());
+
+    var ranges = oc.UnicodeRange.range(&[_]oc.UnicodeRange.Enum{
+        .BasicLatin,
+        .C1ControlsAndLatin1Supplement,
+        .LatinExtendedA,
+        .LatinExtendedB,
+        .Specials,
+    });
+    font = oc.Font.createFromPath("/zig.ttf", &ranges);
+    oc.assert(font.isNil() == false, "created font should not be nil", .{}, @src());
+
+    orca_image = oc.Image.createFromPath(surface, oc.Str8.fromSlice("/orca_jumping.jpg"), false);
+    oc.assert(orca_image.isNil() == false, "created image should not be nil", .{}, @src());
 }
 
 export fn oc_on_resize(width: u32, height: u32) void {
-    oc.logInfo("frame resize: {}, {}", .{ width, height }, @src());
+    frame_size = Vec2{ .x = @floatFromInt(width), .y = @floatFromInt(height) };
+    oc.log.info("frame resize: {d:.2}, {d:.2}", .{ frame_size.x, frame_size.y }, @src());
 }
 
 export fn oc_on_mouse_down(button: oc.MouseButton) void {
-    oc.logInfo("mouse down! {}", .{button}, @src());
+    oc.log.info("mouse down! {}", .{button}, @src());
 }
 
 export fn oc_on_mouse_up(button: oc.MouseButton) void {
-    oc.logInfo("mouse up! {}", .{button}, @src());
+    oc.log.info("mouse up! {}", .{button}, @src());
 }
 
-export fn oc_on_key_down(key: oc.KeyCode) void {
+export fn oc_on_key_down(scan: oc.ScanCode, key: oc.KeyCode) void {
-    oc.logInfo("key down: {}", .{key}, @src());
+    oc.log.info("key down: {} {}", .{ scan, key }, @src());
 }
 
-export fn oc_on_key_up(key: oc.KeyCode) void {
+export fn oc_on_key_up(scan: oc.ScanCode, key: oc.KeyCode) void {
-    oc.logInfo("key up: {}", .{key}, @src());
+    oc.log.info("key up: {} {}", .{ scan, key }, @src());
 
     switch (key) {
         oc.KeyCode.Escape => oc.requestQuit(),
         oc.KeyCode.B => oc.abort("aborting", .{}, @src()),
         oc.KeyCode.A => oc.assert(false, "test assert failed", .{}, @src()),
+        oc.KeyCode.W => oc.log.warn("logging a test warning", .{}, @src()),
+        oc.KeyCode.E => oc.log.err("logging a test error", .{}, @src()),
         else => {},
     }
 }
@@ -54,29 +76,28 @@ export fn oc_on_frame_refresh() void {
 
     const secs: f64 = oc.clockTime(oc.ClockKind.Date);
 
-    if (lastSeconds != @floor(secs)) {
+    if (last_seconds != @floor(secs)) {
-        lastSeconds = @floor(secs);
+        last_seconds = @floor(secs);
-        oc.logInfo("seconds since Jan 1, 1970: {d:.0}", .{secs}, @src());
+        oc.log.info("seconds since Jan 1, 1970: {d:.0}", .{secs}, @src());
     }
 
-    _ = canvas.setCurrent();
+    _ = canvas.select();
-    surface.select();
     oc.setColorRgba(0.05, 0.05, 0.05, 1.0);
     oc.clear();
 
     oc.setColorRgba(1.0, 0.05, 0.05, 1.0);
 
     {
-        const translation: oc.Mat2x3 = .{ .m = [_]f32{ 1, 0, 50, 0, 1, 50 } };
+        const translation: Mat2x3 = .{ .m = [_]f32{ 1, 0, 50, 0, 1, 50 } };
-        translation.push();
+        Mat2x3.push(translation);
-        defer oc.Mat2x3.pop();
+        defer Mat2x3.pop();
 
-        oc.assert(std.meta.eql(oc.matrixTop(), translation), "top of matrix stack should be what we pushed", .{}, @src());
+        oc.assert(std.meta.eql(Mat2x3.top(), translation), "top of matrix stack should be what we pushed", .{}, @src());
         oc.setWidth(1);
-        oc.rectangleFill(50, 50, 10, 10);
+        oc.rectangleFill(50, 0, 10, 10);
-        oc.rectangleStroke(70, 50, 10, 10);
+        oc.rectangleStroke(70, 0, 10, 10);
-        oc.roundedRectangleFill(90, 50, 10, 10, 3);
+        oc.roundedRectangleFill(90, 0, 10, 10, 3);
-        oc.roundedRectangleStroke(110, 50, 10, 10, 3);
+        oc.roundedRectangleStroke(110, 0, 10, 10, 3);
 
         const green = oc.Color{ .Flat = .{ .r = 0.05, .g = 1, .b = 0.05, .a = 1 } };
         oc.setColor(green);
@@ -84,18 +105,69 @@ export fn oc_on_frame_refresh() void {
 
         oc.setTolerance(1);
         oc.setJoint(.Bevel);
-        oc.ellipseFill(140, 55, 10, 5);
+        oc.ellipseFill(140, 5, 10, 5);
-        oc.ellipseStroke(170, 55, 10, 5);
+        oc.ellipseStroke(170, 5, 10, 5);
-        oc.circleFill(195, 55, 5);
+        oc.circleFill(195, 5, 5);
-        oc.circleStroke(215, 55, 5);
+        oc.circleStroke(215, 5, 5);
 
-        oc.arc(230, 55, 5, 0, std.math.pi);
+        oc.arc(230, 5, 5, 0, std.math.pi);
     }
 
-    surface.render(canvas);
+    {
+        rotation_demo += 0.03;
+
+        const rot = Mat2x3.rotate(rotation_demo);
+        const trans = Mat2x3.translate(285, 55);
+        Mat2x3.push(Mat2x3.mul_m(trans, rot));
+        defer Mat2x3.pop();
+
+        oc.rectangleFill(-5, -5, 10, 10);
+    }
+
+    {
+        const str = oc.Str8.fromSlice("Hello from Zig!");
+        const font_size = 18;
+        const text_rect = font.textMetrics(font_size, str).ink;
+
+        const center_x = frame_size.x / 2;
+        const text_begin_x = center_x - text_rect.Flat.w / 2;
+
+        oc.log.info("text rect width: {d}", .{text_rect.Flat.w}, @src());
+        oc.log.info("center_x: {d}", .{center_x}, @src());
+        oc.log.info("text_begin_x: {d}", .{text_begin_x}, @src());
+
+        Mat2x3.push(Mat2x3.translate(text_begin_x, 150));
+        defer Mat2x3.pop();
+
+        oc.setColorRgba(1.0, 0.05, 0.05, 1.0);
+
+        oc.setFont(font);
+        oc.setFontSize(font_size);
+        oc.moveTo(0, 0);
+        oc.textOutlines(str);
+        oc.fill();
+    }
+
+    {
+        const trans = Mat2x3.translate(0, 200);
+        const scale = Mat2x3.scaleUniform(0.25);
+        Mat2x3.push(Mat2x3.mul_m(trans, scale));
+        defer Mat2x3.pop();
+
+        const size = orca_image.size();
+
+        orca_image.draw(oc.Rect.xywh(0, 0, size.x, size.y));
+
+        var half_size = orca_image.size();
+        half_size.x /= 2;
+        orca_image.drawRegion(oc.Rect.xywh(0, 0, half_size.x, half_size.y), oc.Rect.xywh(size.x + 10, 0, half_size.x, half_size.y));
+    }
+
+    surface.select();
+    canvas.render();
     surface.present();
 }
 
 export fn oc_on_terminate() void {
-    oc.logInfo("byebye {}", .{counter}, @src());
+    oc.log.info("byebye {}", .{counter}, @src());
 }

src/app/app.c

@@ -188,7 +188,7 @@ oc_key_code oc_scancode_to_keycode(oc_scan_code scanCode)
     return (oc_appData.keyMap[scanCode]);
 }
 
-#define OC_DEFAULT_KEYMAP_ENTRY(sc, sv, ...) [(int) sc] = (oc_key_code)sc,
+#define OC_DEFAULT_KEYMAP_ENTRY(sc, sv, kc, ...) [(int) sc] = OC_VA_NOPT(sv, ##__VA_ARGS__) __VA_ARGS__,
 
 oc_key_code oc_defaultKeyMap[OC_SCANCODE_COUNT] = {
     OC_KEY_TABLE(OC_DEFAULT_KEYMAP_ENTRY)

src/graphics/graphics.h

@@ -227,9 +227,9 @@ ORCA_API void oc_render(oc_canvas canvas);             //DOC: renders all canvas
 ORCA_API oc_font oc_font_nil(void);
 ORCA_API bool oc_font_is_nil(oc_font font);
 
-ORCA_API oc_font oc_font_create_from_memory(oc_str8 mem, u32 rangeCount, oc_unicode_range* ranges);
+ORCA_API oc_font oc_font_create_from_memory(oc_str8 mem, u32 rangeCount, const oc_unicode_range* ranges);
-ORCA_API oc_font oc_font_create_from_file(oc_file file, u32 rangeCount, oc_unicode_range* ranges);
+ORCA_API oc_font oc_font_create_from_file(oc_file file, u32 rangeCount, const oc_unicode_range* ranges);
-ORCA_API oc_font oc_font_create_from_path(oc_str8 path, u32 rangeCount, oc_unicode_range* ranges);
+ORCA_API oc_font oc_font_create_from_path(oc_str8 path, u32 rangeCount, const oc_unicode_range* ranges);
 
 ORCA_API void oc_font_destroy(oc_font font);
 

src/graphics/graphics_common.c

@@ -369,7 +369,7 @@ oc_font_data* oc_font_data_from_handle(oc_font handle)
     return (data);
 }
 
-oc_font oc_font_create_from_memory(oc_str8 mem, u32 rangeCount, oc_unicode_range* ranges)
+oc_font oc_font_create_from_memory(oc_str8 mem, u32 rangeCount, const oc_unicode_range* ranges)
 {
     if(!oc_graphicsData.init)
     {
@@ -552,7 +552,7 @@ oc_font oc_font_create_from_memory(oc_str8 mem, u32 rangeCount, oc_unicode_range
     return (fontHandle);
 }
 
-oc_font oc_font_create_from_file(oc_file file, u32 rangeCount, oc_unicode_range* ranges)
+oc_font oc_font_create_from_file(oc_file file, u32 rangeCount, const oc_unicode_range* ranges)
 {
     oc_font font = oc_font_nil();
     oc_arena_scope scratch = oc_scratch_begin();
@@ -574,7 +574,7 @@ oc_font oc_font_create_from_file(oc_file file, u32 rangeCount, oc_unicode_range*
     return (font);
 }
 
-oc_font oc_font_create_from_path(oc_str8 path, u32 rangeCount, oc_unicode_range* ranges)
+oc_font oc_font_create_from_path(oc_str8 path, u32 rangeCount, const oc_unicode_range* ranges)
 {
     oc_font font = oc_font_nil();