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| #include <windows.h>
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| #include <d2d1_1.h>
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| #include <dwrite.h>
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| #include <stdint.h>
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| extern "C" {
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| #include "d2d_renderer.h"
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| }
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| static struct {
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| ID2D1Factory *factory;
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| ID2D1HwndRenderTarget *target;
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| IDWriteFactory *dwrite_factory;
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| bool initialized;
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| } g_renderer;
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| extern "C" SovResult renderer_init(HWND hwnd) {
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| HRESULT hr = D2D1CreateFactory(
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| D2D1_FACTORY_TYPE_SINGLE_THREADED,
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| &g_renderer.factory
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| );
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| if (FAILED(hr)) return SOV_ERR_ALLOC;
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| RECT rc;
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| GetClientRect(hwnd, &rc);
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| D2D1_SIZE_U size = D2D1::SizeU(
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| (UINT32)(rc.right - rc.left),
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| (UINT32)(rc.bottom - rc.top)
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| );
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| D2D1_RENDER_TARGET_PROPERTIES rtprops = D2D1::RenderTargetProperties();
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| D2D1_HWND_RENDER_TARGET_PROPERTIES hwndprops =
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| D2D1::HwndRenderTargetProperties(hwnd, size);
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| hr = g_renderer.factory->CreateHwndRenderTarget(
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| rtprops, hwndprops, &g_renderer.target
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| );
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| if (FAILED(hr)) return SOV_ERR_ALLOC;
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| hr = DWriteCreateFactory(
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| DWRITE_FACTORY_TYPE_SHARED,
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| __uuidof(IDWriteFactory),
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| reinterpret_cast<IUnknown **>(&g_renderer.dwrite_factory)
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| );
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| if (FAILED(hr)) return SOV_ERR_ALLOC;
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| g_renderer.initialized = true;
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| return SOV_OK;
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| }
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| extern "C" void renderer_begin_frame(void) {
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| if (!g_renderer.initialized) return;
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| g_renderer.target->BeginDraw();
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| D2D1_COLOR_F bg = { 0.12f, 0.12f, 0.14f, 1.0f };
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| g_renderer.target->Clear(&bg);
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| }
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| extern "C" void renderer_end_frame(void) {
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| if (!g_renderer.initialized) return;
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| HRESULT hr = g_renderer.target->EndDraw();
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| if (hr == (HRESULT)D2DERR_RECREATE_TARGET) {
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| g_renderer.initialized = false;
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| }
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| }
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| extern "C" void renderer_resize(uint32_t width, uint32_t height) {
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| if (!g_renderer.initialized) return;
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| D2D1_SIZE_U s = D2D1::SizeU(width, height);
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| g_renderer.target->Resize(s);
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| }
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| extern "C" void renderer_shutdown(void) {
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| if (g_renderer.target) { g_renderer.target->Release(); g_renderer.target = NULL; }
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| if (g_renderer.factory) { g_renderer.factory->Release(); g_renderer.factory = NULL; }
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| if (g_renderer.dwrite_factory) { g_renderer.dwrite_factory->Release(); g_renderer.dwrite_factory = NULL; }
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| g_renderer.initialized = false;
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| }
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| extern "C" void *renderer_get_target(void) {
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| return g_renderer.target;
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| }
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| extern "C" void *renderer_get_dwrite(void) {
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| return g_renderer.dwrite_factory;
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| }
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