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opengl: Initialize consts first to avoid 'Get' calls

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This commit is contained in:
Hajime Hoshi 2018-06-19 04:02:56 +09:00
parent 62bd35e412
commit 8d644479cc
2 changed files with 67 additions and 22 deletions
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82
internal/opengl/context_js.go
View File

@ -44,6 +44,29 @@ func getProgramID(p Program) programID {
return programID(js.Value(p).Get("__ebiten_programId").Int())
}
var (
blend js.Value
clampToEdge js.Value
colorAttachment0 js.Value
compileStatus js.Value
framebuffer js.Value
framebufferBinding js.Value
framebufferComplete js.Value
linkStatus js.Value
maxTextureSize js.Value
nearest js.Value
noError js.Value
texture2d js.Value
textureMagFilter js.Value
textureMinFilter js.Value
textureWrapS js.Value
textureWrapT js.Value
rgba js.Value
unpackAlignment js.Value
unsignedByte js.Value
unsignedShort js.Value
)
func init() {
// Accessing the prototype is rquired on Safari.
c := js.Global.Get("WebGLRenderingContext").Get("prototype")
@ -63,6 +86,27 @@ func init() {
dstAlpha = operation(c.Get("DST_ALPHA").Int())
oneMinusSrcAlpha = operation(c.Get("ONE_MINUS_SRC_ALPHA").Int())
oneMinusDstAlpha = operation(c.Get("ONE_MINUS_DST_ALPHA").Int())
blend = c.Get("BLEND")
clampToEdge = c.Get("CLAMP_TO_EDGE")
compileStatus = c.Get("COMPILE_STATUS")
colorAttachment0 = c.Get("COLOR_ATTACHMENT0")
framebuffer = c.Get("FRAMEBUFFER")
framebufferBinding = c.Get("FRAMEBUFFER_BINDING")
framebufferComplete = c.Get("FRAMEBUFFER_COMPLETE")
linkStatus = c.Get("LINK_STATUS")
maxTextureSize = c.Get("MAX_TEXTURE_SIZE")
nearest = c.Get("NEAREST")
noError = c.Get("NO_ERROR")
rgba = c.Get("RGBA")
texture2d = c.Get("TEXTURE_2D")
textureMagFilter = c.Get("TEXTURE_MAG_FILTER")
textureMinFilter = c.Get("TEXTURE_MIN_FILTER")
textureWrapS = c.Get("TEXTURE_WRAP_S")
textureWrapT = c.Get("TEXTURE_WRAP_T")
unpackAlignment = c.Get("UNPACK_ALIGNMENT")
unsignedByte = c.Get("UNSIGNED_BYTE")
unsignedShort = c.Get("UNSIGNED_SHORT")
}
type context struct {
@ -116,9 +160,9 @@ func (c *Context) Reset() error {
c.lastViewportHeight = 0
c.lastCompositeMode = CompositeModeUnknown
gl := c.gl
gl.Call("enable", gl.Get("BLEND"))
gl.Call("enable", blend)
c.BlendFunc(CompositeModeSourceOver)
f := gl.Call("getParameter", gl.Get("FRAMEBUFFER_BINDING"))
f := gl.Call("getParameter", framebufferBinding)
c.screenFramebuffer = Framebuffer(f)
return nil
}
@ -139,25 +183,25 @@ func (c *Context) NewTexture(width, height int) (Texture, error) {
if t == js.Null {
return Texture(js.Null), errors.New("opengl: glGenTexture failed")
}
gl.Call("pixelStorei", gl.Get("UNPACK_ALIGNMENT"), 4)
gl.Call("pixelStorei", unpackAlignment, 4)
c.BindTexture(Texture(t))
gl.Call("texParameteri", gl.Get("TEXTURE_2D"), gl.Get("TEXTURE_MAG_FILTER"), gl.Get("NEAREST"))
gl.Call("texParameteri", gl.Get("TEXTURE_2D"), gl.Get("TEXTURE_MIN_FILTER"), gl.Get("NEAREST"))
gl.Call("texParameteri", gl.Get("TEXTURE_2D"), gl.Get("TEXTURE_WRAP_S"), gl.Get("CLAMP_TO_EDGE"))
gl.Call("texParameteri", gl.Get("TEXTURE_2D"), gl.Get("TEXTURE_WRAP_T"), gl.Get("CLAMP_TO_EDGE"))
gl.Call("texParameteri", texture2d, textureMagFilter, nearest)
gl.Call("texParameteri", texture2d, textureMinFilter, nearest)
gl.Call("texParameteri", texture2d, textureWrapS, clampToEdge)
gl.Call("texParameteri", texture2d, textureWrapT, clampToEdge)
// void texImage2D(GLenum target, GLint level, GLenum internalformat,
// GLsizei width, GLsizei height, GLint border, GLenum format,
// GLenum type, ArrayBufferView? pixels);
gl.Call("texImage2D", gl.Get("TEXTURE_2D"), 0, gl.Get("RGBA"), width, height, 0, gl.Get("RGBA"), gl.Get("UNSIGNED_BYTE"), nil)
gl.Call("texImage2D", texture2d, 0, rgba, width, height, 0, rgba, unsignedByte, nil)
return Texture(t), nil
}
func (c *Context) bindFramebufferImpl(f Framebuffer) {
gl := c.gl
gl.Call("bindFramebuffer", gl.Get("FRAMEBUFFER"), js.Value(f))
gl.Call("bindFramebuffer", framebuffer, js.Value(f))
}
func (c *Context) FramebufferPixels(f Framebuffer, width, height int) ([]byte, error) {
@ -166,8 +210,8 @@ func (c *Context) FramebufferPixels(f Framebuffer, width, height int) ([]byte, e
c.bindFramebuffer(f)
pixels := make([]byte, 4*width*height)
gl.Call("readPixels", 0, 0, width, height, gl.Get("RGBA"), gl.Get("UNSIGNED_BYTE"), pixels)
if e := gl.Call("getError"); e.Int() != gl.Get("NO_ERROR").Int() {
gl.Call("readPixels", 0, 0, width, height, rgba, unsignedByte, pixels)
if e := gl.Call("getError"); e.Int() != noError.Int() {
return nil, errors.New(fmt.Sprintf("opengl: error: %d", e))
}
return pixels, nil
@ -175,7 +219,7 @@ func (c *Context) FramebufferPixels(f Framebuffer, width, height int) ([]byte, e
func (c *Context) bindTextureImpl(t Texture) {
gl := c.gl
gl.Call("bindTexture", gl.Get("TEXTURE_2D"), js.Value(t))
gl.Call("bindTexture", texture2d, js.Value(t))
}
func (c *Context) DeleteTexture(t Texture) {
@ -199,7 +243,7 @@ func (c *Context) TexSubImage2D(p []byte, x, y, width, height int) {
// void texSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset,
// GLsizei width, GLsizei height,
// GLenum format, GLenum type, ArrayBufferView? pixels);
gl.Call("texSubImage2D", gl.Get("TEXTURE_2D"), 0, x, y, width, height, gl.Get("RGBA"), gl.Get("UNSIGNED_BYTE"), p)
gl.Call("texSubImage2D", texture2d, 0, x, y, width, height, rgba, unsignedByte, p)
}
func (c *Context) NewFramebuffer(t Texture) (Framebuffer, error) {
@ -207,8 +251,8 @@ func (c *Context) NewFramebuffer(t Texture) (Framebuffer, error) {
f := gl.Call("createFramebuffer")
c.bindFramebuffer(Framebuffer(f))
gl.Call("framebufferTexture2D", gl.Get("FRAMEBUFFER"), gl.Get("COLOR_ATTACHMENT0"), gl.Get("TEXTURE_2D"), js.Value(t), 0)
if s := gl.Call("checkFramebufferStatus", gl.Get("FRAMEBUFFER")); s.Int() != gl.Get("FRAMEBUFFER_COMPLETE").Int() {
gl.Call("framebufferTexture2D", framebuffer, colorAttachment0, texture2d, js.Value(t), 0)
if s := gl.Call("checkFramebufferStatus", framebuffer); s.Int() != framebufferComplete.Int() {
return Framebuffer(js.Null), errors.New(fmt.Sprintf("opengl: creating framebuffer failed: %d", s.Int()))
}
@ -246,7 +290,7 @@ func (c *Context) NewShader(shaderType ShaderType, source string) (Shader, error
gl.Call("shaderSource", js.Value(s), source)
gl.Call("compileShader", js.Value(s))
if !gl.Call("getShaderParameter", js.Value(s), gl.Get("COMPILE_STATUS")).Bool() {
if !gl.Call("getShaderParameter", js.Value(s), compileStatus).Bool() {
log := gl.Call("getShaderInfoLog", js.Value(s))
return Shader(js.Null), fmt.Errorf("opengl: shader compile failed: %s", log)
}
@ -271,7 +315,7 @@ func (c *Context) NewProgram(shaders []Shader) (Program, error) {
gl.Call("attachShader", js.Value(p), js.Value(shader))
}
gl.Call("linkProgram", js.Value(p))
if !gl.Call("getProgramParameter", js.Value(p), gl.Get("LINK_STATUS")).Bool() {
if !gl.Call("getProgramParameter", js.Value(p), linkStatus).Bool() {
return Program(js.Null), errors.New("opengl: program error")
}
return Program(p), nil
@ -389,12 +433,12 @@ func (c *Context) DeleteBuffer(b Buffer) {
func (c *Context) DrawElements(mode Mode, len int, offsetInBytes int) {
gl := c.gl
gl.Call("drawElements", int(mode), len, gl.Get("UNSIGNED_SHORT"), offsetInBytes)
gl.Call("drawElements", int(mode), len, unsignedShort, offsetInBytes)
}
func (c *Context) maxTextureSizeImpl() int {
gl := c.gl
return gl.Call("getParameter", gl.Get("MAX_TEXTURE_SIZE")).Int()
return gl.Call("getParameter", maxTextureSize).Int()
}
func (c *Context) Flush() {

7
internal/ui/ui_js.go
View File

@ -50,8 +50,9 @@ var currentUI = &userInterface{
}
var (
window = js.Global.Get("window")
document = js.Global.Get("document")
window = js.Global.Get("window")
document = js.Global.Get("document")
requestAnimationFrame = window.Get("requestAnimationFrame")
)
func MonitorSize() (int, int) {
@ -215,7 +216,7 @@ func (u *userInterface) loop(g GraphicsContext) error {
close(ch)
return
}
window.Call("requestAnimationFrame", cf)
requestAnimationFrame.Invoke(cf)
}
cf = js.NewCallback(f)
// Call f asyncly to be async since ch is used in f.