mirror of
https://github.com/hajimehoshi/ebiten.git
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43 lines
871 B
Go
43 lines
871 B
Go
// SPDX-License-Identifier: Apache-2.0
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// SPDX-FileCopyrightText: 2012 The glfw3-go Authors
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// SPDX-FileCopyrightText: 2023 The Ebitengine Authors
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//go:build darwin || freebsd || linux || netbsd || openbsd
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package glfw
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// #include <stdlib.h>
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// #define GLFW_INCLUDE_NONE
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// #include "glfw3_unix.h"
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import "C"
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import (
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"image"
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"image/draw"
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)
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func imageToGLFWImage(img image.Image) (glfwImg C.GLFWimage, free func()) {
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b := img.Bounds()
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if b.Dx() == 0 || b.Dy() == 0 {
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return C.GLFWimage{
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width: C.int(b.Dx()),
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height: C.int(b.Dy()),
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}, func() {}
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}
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m := image.NewNRGBA(image.Rect(0, 0, b.Dx(), b.Dy()))
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draw.Draw(m, m.Bounds(), img, b.Min, draw.Src)
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pixels := m.Pix
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cpixels := C.CBytes(pixels)
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free = func() {
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C.free(cpixels)
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}
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return C.GLFWimage{
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width: C.int(b.Dx()),
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height: C.int(b.Dy()),
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pixels: (*C.uchar)(cpixels),
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}, free
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}
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