From f0509096f8c287b8d5bce196acbc59fbb9d02356 Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Sun, 21 Jan 2024 23:54:02 +0900
Subject: [PATCH] internal/graphicsdriver/playstation5: add
 ebitengine_IsErrorNil

---
 .../graphicsdriver/playstation5/graphics_playstation5.go  | 8 ++++----
 .../graphicsdriver/playstation5/graphics_playstation5.h   | 6 ++++++
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/internal/graphicsdriver/playstation5/graphics_playstation5.go b/internal/graphicsdriver/playstation5/graphics_playstation5.go
index a4ff51f2b..a9bc03279 100644
--- a/internal/graphicsdriver/playstation5/graphics_playstation5.go
+++ b/internal/graphicsdriver/playstation5/graphics_playstation5.go
@@ -53,7 +53,7 @@ func NewGraphics() (*Graphics, error) {
 }
 
 func (g *Graphics) Initialize() error {
-	if err := C.ebitengine_InitializeGraphics(); err.message != nil {
+	if err := C.ebitengine_InitializeGraphics(); !C.ebitengine_IsErrorNil(&err) {
 		return newPlaystation5Error("(*playstation5.Graphics).Initialize", err)
 	}
 	return nil
@@ -76,7 +76,7 @@ func (g *Graphics) SetVertices(vertices []float32, indices []uint32) error {
 
 func (g *Graphics) NewImage(width, height int) (graphicsdriver.Image, error) {
 	var id C.int
-	if err := C.ebitengine_NewImage(&id, C.int(width), C.int(height)); err.message != nil {
+	if err := C.ebitengine_NewImage(&id, C.int(width), C.int(height)); !C.ebitengine_IsErrorNil(&err) {
 		return nil, newPlaystation5Error("(*playstation5.Graphics).NewImage", err)
 	}
 	return &Image{
@@ -86,7 +86,7 @@ func (g *Graphics) NewImage(width, height int) (graphicsdriver.Image, error) {
 
 func (g *Graphics) NewScreenFramebufferImage(width, height int) (graphicsdriver.Image, error) {
 	var id C.int
-	if err := C.ebitengine_NewScreenFramebufferImage(&id, C.int(width), C.int(height)); err.message != nil {
+	if err := C.ebitengine_NewScreenFramebufferImage(&id, C.int(width), C.int(height)); !C.ebitengine_IsErrorNil(&err) {
 		return nil, newPlaystation5Error("(*playstation5.Graphics).NewScreenFramebufferImage", err)
 	}
 	return &Image{
@@ -108,7 +108,7 @@ func (g *Graphics) MaxImageSize() int {
 func (g *Graphics) NewShader(program *shaderir.Program) (graphicsdriver.Shader, error) {
 	var id C.int
 	// TODO: Give a source code.
-	if err := C.ebitengine_NewShader(&id, nil); err.message != nil {
+	if err := C.ebitengine_NewShader(&id, nil); !C.ebitengine_IsErrorNil(&err) {
 		return nil, newPlaystation5Error("(*playstation5.Graphics).NewShader", err)
 	}
 	return &Shader{
diff --git a/internal/graphicsdriver/playstation5/graphics_playstation5.h b/internal/graphicsdriver/playstation5/graphics_playstation5.h
index 40f1e8326..2a307a3c8 100644
--- a/internal/graphicsdriver/playstation5/graphics_playstation5.h
+++ b/internal/graphicsdriver/playstation5/graphics_playstation5.h
@@ -14,6 +14,8 @@
 
 //go:build playstation5
 
+#include <stdbool.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -23,6 +25,10 @@ typedef struct ebitengine_Error {
   int         code;
 } ebitengine_Error;
 
+bool ebitengine_IsErrorNil(ebitengine_Error* err) {
+  return err->message == NULL && err->code == 0;
+}
+
 ebitengine_Error ebitengine_InitializeGraphics(void);
 ebitengine_Error ebitengine_NewImage(int* image, int width, int height);
 ebitengine_Error ebitengine_NewScreenFramebufferImage(int* image, int width, int height);