internal/graphicsdriver/playstation5: add a binding

Updates #2799

internal/graphicsdriver/playstation5/graphics_playstation5.go

@@ -16,12 +16,26 @@
 
 package playstation5
 
+// #include "graphics_playstation5.h"
+import "C"
+
 import (
+	"fmt"
+
 	"github.com/hajimehoshi/ebiten/v2/internal/graphics"
 	"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver"
 	"github.com/hajimehoshi/ebiten/v2/internal/shaderir"
 )
 
+type playstation5Error struct {
+	name string
+	code C.int
+}
+
+func (e *playstation5Error) Error() string {
+	return fmt.Sprintf("playstation5: error at %s, code: %d", e.name, e.code)
+}
+
 type Graphics struct {
 }
 
@@ -30,6 +44,12 @@ func NewGraphics() (*Graphics, error) {
 }
 
 func (g *Graphics) Initialize() error {
+	if errCode := C.ebitengine_InitializeGraphics(); errCode != 0 {
+		return &playstation5Error{
+			name: "(*playstation5.Graphics).Initialize",
+			code: errCode,
+		}
+	}
 	return nil
 }
 
@@ -49,11 +69,29 @@ func (g *Graphics) SetVertices(vertices []float32, indices []uint32) error {
 }
 
 func (g *Graphics) NewImage(width, height int) (graphicsdriver.Image, error) {
-	return nil, nil
+	var id C.int
+	if errCode := C.ebitengine_NewImage(&id, C.int(width), C.int(height)); errCode != 0 {
+		return nil, &playstation5Error{
+			name: "(*playstation5.Graphics).NewImage",
+			code: errCode,
+		}
+	}
+	return &Image{
+		id: graphicsdriver.ImageID(id),
+	}, nil
 }
 
 func (g *Graphics) NewScreenFramebufferImage(width, height int) (graphicsdriver.Image, error) {
-	return nil, nil
+	var id C.int
+	if errCode := C.ebitengine_NewScreenFramebufferImage(&id, C.int(width), C.int(height)); errCode != 0 {
+		return nil, &playstation5Error{
+			name: "(*playstation5.Graphics).NewScreenFramebufferImage",
+			code: errCode,
+		}
+	}
+	return &Image{
+		id: graphicsdriver.ImageID(id),
+	}, nil
 }
 
 func (g *Graphics) SetVsyncEnabled(enabled bool) {
@@ -68,13 +106,61 @@ func (g *Graphics) NeedsClearingScreen() bool {
 }
 
 func (g *Graphics) MaxImageSize() int {
-	return 4096 // TODO
+	return 4096 // TODO: Get the value from the SDK.
 }
 
 func (g *Graphics) NewShader(program *shaderir.Program) (graphicsdriver.Shader, error) {
-	return nil, nil
+	var id C.int
+	// TODO: Give a source code.
+	if errCode := C.ebitengine_NewShader(&id, nil); errCode != 0 {
+		return nil, &playstation5Error{
+			name: "(*playstation5.Graphics).NewShader",
+			code: errCode,
+		}
+	}
+	return &Shader{
+		id: graphicsdriver.ShaderID(id),
+	}, nil
 }
 
 func (g *Graphics) DrawTriangles(dst graphicsdriver.ImageID, srcs [graphics.ShaderImageCount]graphicsdriver.ImageID, shader graphicsdriver.ShaderID, dstRegions []graphicsdriver.DstRegion, indexOffset int, blend graphicsdriver.Blend, uniforms []uint32, fillRule graphicsdriver.FillRule) error {
 	return nil
 }
+
+type Image struct {
+	id graphicsdriver.ImageID
+}
+
+func (i *Image) ID() graphicsdriver.ImageID {
+	return i.id
+}
+
+func (i *Image) Dispose() {
+	C.ebitengine_DisposeImage(C.int(i.id))
+}
+
+func (i *Image) IsInvalidated() bool {
+	return false
+}
+
+func (i *Image) ReadPixels(args []graphicsdriver.PixelsArgs) error {
+	// TODO: Implement this
+	return nil
+}
+
+func (i *Image) WritePixels(args []graphicsdriver.PixelsArgs) error {
+	// TODO: Implement this
+	return nil
+}
+
+type Shader struct {
+	id graphicsdriver.ShaderID
+}
+
+func (s *Shader) ID() graphicsdriver.ShaderID {
+	return s.id
+}
+
+func (s *Shader) Dispose() {
+	C.ebitengine_DisposeShader(C.int(s.id))
+}

internal/graphicsdriver/playstation5/graphics_playstation5.h

@@ -0,0 +1,31 @@
+// Copyright 2023 The Ebitengine Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//go:build playstation5
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int ebitengine_InitializeGraphics(void);
+int ebitengine_NewImage(int* image, int width, int height);
+int ebitengine_NewScreenFramebufferImage(int* image, int width, int height);
+void ebitengine_DisposeImage(int id);
+
+int ebitengine_NewShader(int* shader, const char* source);
+void ebitengine_DisposeShader(int id);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif