From 87279f6903343e621c0446b20d1e7d6a495f1125 Mon Sep 17 00:00:00 2001 From: Berke Güzel Date: Wed, 14 Oct 2026 13:56:48 +0300 Subject: Simplify the public API into one dense header yasl.h now holds everything except Vulkan: 45 functions instead of 62, and three installed headers instead of ten. - One constructor: yasl_surface_create takes CPU, GL or NATIVE, with zero-initialized GL options meaning 3.2 core, RGBA8, D24S8. - Events carry action, mods, x, y and text at the top level; pen positions are now logical like pointer positions. - yasl_cpu_pixels/yasl_cpu_present draw into one persistent canvas, cutting three full-frame copies per frame. - yasl_surface_get_info, yasl_surface_request, YASL_CURSOR_LOCKED, yasl_surface_set_text_input, yasl_surface_begin_move_resize and yasl_surface_get_native replace groups of narrower calls. - Interactive calls drop the decorative trigger event argument. - yasl_wait_event returns 0 only on timeout or yasl_wake, the refresh callback runs only in native modal loops, focus loss sends INPUT_RESET, and a lost event no longer fails every later wait. - Unsupported operations and bad arguments report ENOTSUP and EINVAL instead of EIO; the keycodes header no longer needs C23. - The shared library gets a versioned SONAME and version macros. Co-Authored-By: Claude Opus 5.5 --- examples/hello.c | 48 ++++++++++++++---------------------------------- 1 file changed, 14 insertions(+), 34 deletions(-) (limited to 'examples/hello.c') diff --git a/examples/hello.c b/examples/hello.c index 054051d..d17dd39 100644 --- a/examples/hello.c +++ b/examples/hello.c @@ -1,50 +1,30 @@ /* A CPU-rendered window. */ #include -#include int main(void) { - struct yasl_surface_options options = { - .title = "Hello YASL", - .width = 640, - .height = 480, - .type = YASL_SURFACE_CPU, - }; - yasl_surface *surface = yasl_surface_create(&options); + yasl_surface *surface = yasl_surface_create( + &(struct yasl_surface_options){.title = "Hello YASL", .width = 640, .height = 480}); if (!surface) return 1; - - int result = 0; - for (;;) { - yasl_event event; - if (yasl_wait_event(&event, -1) < 0) { - result = 1; - break; - } + yasl_event event; + while (yasl_wait_event(&event, -1) >= 0) { if (event.type == YASL_EVENT_CLOSE || event.type == YASL_EVENT_QUIT) break; if (event.type != YASL_EVENT_REFRESH) continue; - - struct yasl_cpu_buffer buffer; - if (yasl_cpu_acquire(surface, &buffer) < 0) { - result = 1; + int w, h; + uint32_t *pixels = yasl_cpu_pixels(surface, &w, &h); + if (!pixels) break; - } - for (int y = 0; y < buffer.height; y++) { - uint32_t *row = (uint32_t *)((unsigned char *)buffer.pixels + y * buffer.stride_bytes); - for (int x = 0; x < buffer.width; x++) { + for (int y = 0; y < h; y++) + for (int x = 0; x < w; x++) { /* Opaque premultiplied ARGB: red grows rightward, green downward. */ - uint32_t r = (uint32_t)(x * 255 / (buffer.width > 1 ? buffer.width - 1 : 1)); - uint32_t g = (uint32_t)(y * 255 / (buffer.height > 1 ? buffer.height - 1 : 1)); - row[x] = 0xff000000 | r << 16 | g << 8 | (255 - r); + uint32_t r = (uint32_t)(x * 255 / (w > 1 ? w - 1 : 1)); + uint32_t g = (uint32_t)(y * 255 / (h > 1 ? h - 1 : 1)); + pixels[(size_t)y * w + x] = 0xff000000 | r << 16 | g << 8 | (255 - r); } - } - if (yasl_cpu_present(surface, &buffer) < 0) { - result = 1; - break; - } + yasl_cpu_present(surface); } - yasl_shutdown(); - return result; + return yasl_shutdown() < 0; } -- cgit v1.2.3