CI pipeline, sc_gfx_resize, Vulkan swapchain resize, WASM fixes

amalxloop · amalxloop · commit 1369482005e5 · 2026-05-11T23:30:29.000+05:30
- CI pipeline (.github/workflows/ci.yml): three jobs — software
  backend test (all 6 suites + stock_dashboard PPM), Vulkan backend
  (install SDK, compile, headless gfx test), WASM (setup emsdk,
  build with emcmake)
- sc_gfx_resize: new API to handle window resize. Software backend
  reallocs framebuffer; Vulkan backend recreates swapchain or
  offscreen resources. Forward declarations + dispatch in sc_gfx.h
- sc_vulkan_resize: handles both headless (destroy/recreate offscreen
  image/view/fbo) and windowed (recreate swapchain via existing
  _sc_vk_recreate_swapchain)
- WASM CMakeLists.fixed: correct unity TU path, added -I tools for
  stb_truetype, sc_font support; replaced deprecated LINK_FLAGS
  with target_link_options; exported sc_gfx_resize
- silvercore.js: added gfx_resize wrapper
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -0,0 +1,64 @@
+name: CI
+on: [push, pull_request]
+
+jobs:
+  test-software:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Build & test (software backend)
+        run: |
+          for t in test_arena test_math test_layout test_gfx test_runtime test_font; do
+            clang -I include -I tools -Wall -Wextra -Wpedantic -Wshadow \
+              tests/${t}.c -lm -o /tmp/$t && /tmp/$t
+          done
+      - name: Build stock_dashboard + PPM output
+        run: |
+          clang -O3 -DSC_GFX_IMPLEMENTATION -DSC_LAYOUT_IMPLEMENTATION \
+            -DSC_WIDGET_IMPLEMENTATION -DSC_RUNTIME_IMPLEMENTATION \
+            -DSC_FONT_IMPLEMENTATION -DSC_GFX_BACKEND_SOFTWARE \
+            -I include -I tools apps/stock_dashboard/stock_dashboard.c \
+            -lm -o /tmp/stock_dashboard
+          /tmp/stock_dashboard
+          file silvercore.ppm
+
+  test-vulkan:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Vulkan SDK
+        run: |
+          sudo apt-get update -qq
+          sudo apt-get install -y -qq libvulkan-dev mesa-vulkan-drivers
+      - name: Compile Vulkan backend
+        run: |
+          clang -I include -I tools -DSC_GFX_IMPLEMENTATION \
+            -DSC_GFX_BACKEND_VULKAN -DSC_BACKEND_VULKAN_IMPLEMENTATION \
+            -DSC_LAYOUT_IMPLEMENTATION -DSC_WIDGET_IMPLEMENTATION \
+            -DSC_RUNTIME_IMPLEMENTATION -DSC_FONT_IMPLEMENTATION \
+            -c backends/sc_backend_vulkan.h -o /dev/null -x c \
+            -Wall -Wextra -Wpedantic -Wshadow
+      - name: Build and run Vulkan headless test
+        run: |
+          clang -I include -I tools -DSC_GFX_IMPLEMENTATION \
+            -DSC_GFX_BACKEND_VULKAN -DSC_BACKEND_VULKAN_IMPLEMENTATION \
+            -DSC_LAYOUT_IMPLEMENTATION -DSC_WIDGET_IMPLEMENTATION \
+            -DSC_RUNTIME_IMPLEMENTATION -DSC_FONT_IMPLEMENTATION \
+            -Wall -Wextra -Wpedantic -Wshadow \
+            tests/test_gfx.c -lm -lvulkan -o /tmp/test_vk
+          /tmp/test_vk
+
+  wasm:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: mymindstorm/setup-emsdk@v14
+        with:
+          version: 3.1.64
+      - name: Build WASM target
+        run: |
+          emcmake cmake -S . -B build-wasm -DWASM=ON -DSC_TESTS=OFF
+          cmake --build build-wasm -j$(nproc)
+      - name: Verify WASM output
+        run: |
+          ls -lh build-wasm/*.wasm build-wasm/*.js
diff --git a/backends/sc_backend_vulkan.h b/backends/sc_backend_vulkan.h
@@ -1244,6 +1244,38 @@ SCGfxTexture sc_vulkan_make_texture(SCGfxContext *ctx, const SCGfxTextureDesc *d
     return h;
 }
 
+SCResult sc_vulkan_resize(SCGfxContext *ctx, u32 width, u32 height) {
+    if (!ctx || !ctx->backend_data || width == 0 || height == 0)
+        return SC_ERR_INVALID_ARG;
+    _SCVkState *s = (_SCVkState*)ctx->backend_data;
+
+    vkDeviceWaitIdle(s->device);
+    s->width  = width;
+    s->height = height;
+    ctx->width  = width;
+    ctx->height = height;
+
+    if (s->headless) {
+        /* Destroy old offscreen resources */
+        if (s->os_fbo)   vkDestroyFramebuffer(s->device, s->os_fbo, NULL);
+        if (s->os_view)  vkDestroyImageView(s->device, s->os_view, NULL);
+        if (s->os_image) vkDestroyImage(s->device, s->os_image, NULL);
+        if (s->os_mem)   vkFreeMemory(s->device, s->os_mem, NULL);
+        s->os_fbo = s->os_view = VK_NULL_HANDLE;
+        s->os_image = VK_NULL_HANDLE;
+        s->os_mem   = VK_NULL_HANDLE;
+
+        VkResult r = _sc_vk_create_offscreen(s->device, s->phy_dev, s->gfx_queue,
+            s->width, s->height, s->swap_fmt, s->render_pass,
+            &s->os_image, &s->os_mem, &s->os_view, &s->os_fbo);
+        return (r == VK_SUCCESS) ? SC_OK : SC_ERR_GFX;
+    }
+
+    /* Windowed: recreate swapchain */
+    VkResult r = _sc_vk_recreate_swapchain(s);
+    return (r == VK_SUCCESS) ? SC_OK : SC_ERR_GFX;
+}
+
 void sc_vulkan_destroy_texture(SCGfxContext *ctx, SCGfxTexture tex) {
     if (!ctx || !ctx->backend_data || tex.id == 0 || tex.id >= SC_GFX_MAX_TEXTURES)
         return;
diff --git a/include/sc_gfx.h b/include/sc_gfx.h
@@ -256,6 +256,9 @@ SCGfxFrameStats sc_gfx_frame_stats  (const SCGfxContext *ctx);
 /* Enable or disable software framebuffer rasterization (default: on) */
 void           sc_gfx_set_rasterize(SCGfxContext *ctx, bool enable);
 
+/* Resize the framebuffer / swapchain (handle window resize) */
+SCResult       sc_gfx_resize(SCGfxContext *ctx, u32 width, u32 height);
+
 /* Built-in 2-D helpers (sprite / rect / text batch) */
 void sc_gfx_draw_rect  (SCGfxContext *ctx, SCRect2f rect, SCColor color);
 void sc_gfx_draw_sprite(SCGfxContext *ctx, SCRect2f dest, SCGfxTexture tex, SCColor tint);
@@ -303,6 +306,7 @@ void     sc_vulkan_end_frame   (SCGfxContext *ctx);
 SCGfxTexture sc_vulkan_make_texture (SCGfxContext *ctx,
                                      const SCGfxTextureDesc *desc);
 void         sc_vulkan_destroy_texture(SCGfxContext *ctx, SCGfxTexture tex);
+SCResult sc_vulkan_resize      (SCGfxContext *ctx, u32 width, u32 height);
 #endif
 
 /* ---- Internal context ------------------------------------------------- */
@@ -686,6 +690,24 @@ void sc_gfx_set_rasterize(SCGfxContext *ctx, bool enable) {
     if (ctx) ctx->rasterize = enable;
 }
 
+SCResult sc_gfx_resize(SCGfxContext *ctx, u32 width, u32 height) {
+    if (!ctx || width == 0 || height == 0) return SC_ERR_INVALID_ARG;
+#ifdef SC_GFX_BACKEND_VULKAN
+    if (ctx->backend == SC_BACKEND_VULKAN) {
+        return sc_vulkan_resize(ctx, width, height);
+    }
+#endif
+    if (ctx->backend == SC_BACKEND_SOFTWARE) {
+        u8 *fb = (u8*)realloc(ctx->framebuffer, (usize)width * height * 4);
+        if (!fb) return SC_ERR_OOM;
+        ctx->framebuffer = fb;
+        ctx->width  = width;
+        ctx->height = height;
+        return SC_OK;
+    }
+    return SC_ERR_NOT_SUPPORTED;
+}
+
 /* ---- 2-D batch helpers ------------------------------------------------ */
 static void _sc_gfx_push_quad(SCGfxContext *ctx, SCGfxTexture tex,
     f32 x0, f32 y0, f32 x1, f32 y1,
diff --git a/tools/wasm/CMakeLists.wasm.cmake b/tools/wasm/CMakeLists.wasm.cmake
@@ -39,6 +39,7 @@ set(WASM_LINK_FLAGS
         "'_sc_gfx_shutdown',"
         "'_sc_gfx_begin_frame',"
         "'_sc_gfx_end_frame',"
+        "'_sc_gfx_resize',"
         "'_sc_gfx_draw_rect',"
         "'_sc_gfx_draw_line',"
         "'_sc_gfx_draw_sprite',"
@@ -76,7 +77,7 @@ string(JOIN " " WASM_LINK_FLAGS_STR ${WASM_LINK_FLAGS})
 # WASM target
 # ---------------------------------------------------------------------------
 add_executable(silvercore_wasm
-    ${CMAKE_SOURCE_DIR}/src/sc_kernel.c          # implementation TU
+    ${CMAKE_BINARY_DIR}/sc_kernel.c          # auto-generated unity build TU
     ${CMAKE_SOURCE_DIR}/apps/stock_dashboard/stock_dashboard.c
 )
 
@@ -85,19 +86,21 @@ target_compile_definitions(silvercore_wasm PRIVATE
     SC_LAYOUT_IMPLEMENTATION
     SC_WIDGET_IMPLEMENTATION
     SC_RUNTIME_IMPLEMENTATION
+    SC_FONT_IMPLEMENTATION
     SC_GFX_BACKEND_SOFTWARE   # WebGPU path TBD
     SC_PLATFORM_WASM
 )
 
 target_include_directories(silvercore_wasm PRIVATE
     ${CMAKE_SOURCE_DIR}/include
+    ${CMAKE_SOURCE_DIR}/tools
 )
 
 set_target_properties(silvercore_wasm PROPERTIES
     OUTPUT_NAME "silvercore"
     SUFFIX ".js"
-    LINK_FLAGS "${WASM_LINK_FLAGS_STR}"
 )
+target_link_options(silvercore_wasm PRIVATE ${WASM_LINK_FLAGS})
 
 target_compile_options(silvercore_wasm PRIVATE
     -O3
diff --git a/tools/wasm/silvercore.js b/tools/wasm/silvercore.js
@@ -77,6 +77,7 @@ class SilverCoreApp {
             gfx_shutdown:       m.cwrap("sc_gfx_shutdown",       null,     ["number"]),
             gfx_begin_frame:    m.cwrap("sc_gfx_begin_frame",    null,     ["number","number","number","number","number"]),
             gfx_end_frame:      m.cwrap("sc_gfx_end_frame",      null,     ["number"]),
+            gfx_resize:         m.cwrap("sc_gfx_resize",         "number", ["number","number","number"]),
             gfx_draw_rect:      m.cwrap("sc_gfx_draw_rect",      null,     ["number","number","number","number","number","number","number","number","number"]),
             gfx_draw_line:      m.cwrap("sc_gfx_draw_line",      null,     ["number","number","number","number","number","number","number","number","number"]),
             scene_init:         m.cwrap("sc_scene_init",         null,     ["number","number","number","number"]),
