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graphicsdriver/opengl: Use GL_RGBA8 as the internal format at glTexImage2D

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Related: #810
This commit is contained in:
Hajime Hoshi 2019-02-09 21:25:36 +09:00
parent 815f2a6b35
commit f5044f3d8f
3 changed files with 4 additions and 2 deletions
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2
internal/graphicsdriver/opengl/context_desktop.go
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@ -145,7 +145,7 @@ func (c *context) newTexture(width, height int) (textureNative, error) {
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE) gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE)
// If data is nil, this just allocates memory and the content is undefined. // If data is nil, this just allocates memory and the content is undefined.
// https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glTexImage2D.xhtml // https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glTexImage2D.xhtml
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, int32(width), int32(height), 0, gl.RGBA, gl.UNSIGNED_BYTE, nil) gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, int32(width), int32(height), 0, gl.RGBA, gl.UNSIGNED_BYTE, nil)
return nil return nil
}) })
return texture, nil return texture, nil

2
internal/graphicsdriver/opengl/context_js.go
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@ -172,6 +172,8 @@ func (c *context) newTexture(width, height int) (textureNative, error) {
// In Ebiten, textures are filled with pixels laster by the filter that ignores destination, so it is fine // In Ebiten, textures are filled with pixels laster by the filter that ignores destination, so it is fine
// to leave textures as uninitialized here. Rather, extra memory allocating for initialization should be // to leave textures as uninitialized here. Rather, extra memory allocating for initialization should be
// avoided. // avoided.
// gl.RGBA8 is available as of WebGL 2.
gl.Call("texImage2D", texture2d, 0, rgba, width, height, 0, rgba, unsignedByte, nil) gl.Call("texImage2D", texture2d, 0, rgba, width, height, 0, rgba, unsignedByte, nil)
return textureNative(t), nil return textureNative(t), nil

2
internal/graphicsdriver/opengl/context_mobile.go
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@ -130,7 +130,7 @@ func (c *context) newTexture(width, height int) (textureNative, error) {
gl.TexParameteri(mgl.TEXTURE_2D, mgl.TEXTURE_MIN_FILTER, mgl.NEAREST) gl.TexParameteri(mgl.TEXTURE_2D, mgl.TEXTURE_MIN_FILTER, mgl.NEAREST)
gl.TexParameteri(mgl.TEXTURE_2D, mgl.TEXTURE_WRAP_S, mgl.CLAMP_TO_EDGE) gl.TexParameteri(mgl.TEXTURE_2D, mgl.TEXTURE_WRAP_S, mgl.CLAMP_TO_EDGE)
gl.TexParameteri(mgl.TEXTURE_2D, mgl.TEXTURE_WRAP_T, mgl.CLAMP_TO_EDGE) gl.TexParameteri(mgl.TEXTURE_2D, mgl.TEXTURE_WRAP_T, mgl.CLAMP_TO_EDGE)
gl.TexImage2D(mgl.TEXTURE_2D, 0, mgl.RGBA, width, height, mgl.RGBA, mgl.UNSIGNED_BYTE, nil) gl.TexImage2D(mgl.TEXTURE_2D, 0, mgl.RGBA8, width, height, mgl.RGBA, mgl.UNSIGNED_BYTE, nil)
return textureNative(t), nil return textureNative(t), nil
} }