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#include "include/canvas.hpp"#include "include/context2d.hpp"#include "include/core/SkImageInfo.h"#include "include/core/SkStream.h"#include "include/gpu/GrBackendSurface.h"#include "include/gpu/gl/GrGLInterface.h"
extern "C" {  void sk_init() {    SkGraphics::Init();  }  sk_canvas* sk_canvas_create(int width, int height) {    sk_canvas* canvas = new sk_canvas();    canvas->backend = kBackendCPU;    canvas->surface = SkSurface::MakeRasterN32Premul(width, height).release();    canvas->context_2d = sk_canvas_create_context(canvas);    return canvas;  }  sk_canvas* sk_canvas_create_gl(int width, int height) {    sk_canvas* canvas = new sk_canvas();    canvas->backend = kBackendOpenGL;        auto interface = GrGLMakeNativeInterface();    if (interface == nullptr) {      return nullptr;    }    canvas->context = GrDirectContext::MakeGL(interface).release();    if (canvas->context == nullptr) {      return nullptr;    }    GrGLFramebufferInfo framebufferInfo;	  framebufferInfo.fFBOID = 0;    framebufferInfo.fFormat = 32856;    SkColorType colorType = kRGBA_8888_SkColorType;	  GrBackendRenderTarget backendRenderTarget(width, height, 0, 0, framebufferInfo);      canvas->surface = SkSurface::MakeFromBackendRenderTarget(      canvas->context,      backendRenderTarget,      kBottomLeft_GrSurfaceOrigin,      colorType,      nullptr, // SkColorSpace::MakeSRGB(),      nullptr    ).release();    if (canvas->surface == nullptr) {      return nullptr;    }    canvas->context_2d = sk_canvas_create_context(canvas);    return canvas;  }  void sk_canvas_flush(sk_canvas* canvas) {    canvas->context->flush();  }  void sk_canvas_destroy(sk_canvas* canvas) {    canvas->surface->unref();    sk_context_destroy((sk_context*) canvas->context_2d);    delete canvas;  }  int sk_canvas_save(sk_canvas* canvas, char* path, int format, int quality) {    auto info = canvas->surface->makeImageSnapshot();    auto buf = info->encodeToData(format_from_int(format), quality);    if (buf) {      SkFILEWStream stream(path);      if (stream.write(buf->data(), buf->size())) {        stream.flush();        buf.release();        return 1;      }    }    return 0;  }  void sk_canvas_read_pixels(sk_canvas* canvas, int x, int y, int width, int height, void* pixels, int cs) {    canvas->surface->readPixels(SkImageInfo::Make(width, height, SkColorType::kRGBA_8888_SkColorType, SkAlphaType::kUnpremul_SkAlphaType, cs == 0 ? SkColorSpace::MakeSRGB() : SkColorSpace::MakeRGB(SkNamedTransferFn::kSRGB, SkNamedGamut::kDisplayP3)), pixels, width * 4, x, y);  }  const void* sk_canvas_encode_image(sk_canvas* canvas, int format, int quality, int* size, SkData** data) {    auto info = canvas->surface->makeImageSnapshot();    auto buf = info->encodeToData(format_from_int(format), quality);    if (buf) {      auto ptr = buf->data();      *size = buf->size();      *data = buf.release();      return ptr;    }    return nullptr;  }  void sk_data_free(SkData* data) {    data->unref();  }  sk_context* sk_canvas_create_context(sk_canvas* canvas) {    sk_context* context = new sk_context();        context->canvas = canvas->surface->getCanvas();    context->path = new SkPath();    context->state = create_default_state();    context->states = std::vector<sk_context_state*>();    return context;  }  sk_context* sk_canvas_get_context(sk_canvas* canvas) {    return (sk_context*) canvas->context_2d;  }  void sk_canvas_set_size(sk_canvas* canvas, int width, int height) {    if (canvas->backend == kBackendCPU) {      // Raster canvas      canvas->surface->unref();      sk_context_destroy((sk_context*) canvas->context_2d);      canvas->surface = SkSurface::MakeRasterN32Premul(width, height).release();      canvas->context_2d = sk_canvas_create_context(canvas);    } else if (canvas->backend == kBackendOpenGL) {      // OpenGL canvas      canvas->surface->unref();      sk_context_destroy((sk_context*) canvas->context_2d);      GrGLFramebufferInfo framebufferInfo;      framebufferInfo.fFBOID = 0;      framebufferInfo.fFormat = 32856;      SkColorType colorType = kRGBA_8888_SkColorType;      GrBackendRenderTarget backendRenderTarget(width, height, 0, 0, framebufferInfo);      canvas->surface = SkSurface::MakeFromBackendRenderTarget(        canvas->context,        backendRenderTarget,        kBottomLeft_GrSurfaceOrigin,        colorType,        nullptr, // SkColorSpace::MakeSRGB(),        nullptr      ).release();      canvas->context_2d = sk_canvas_create_context(canvas);    }  }}