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Diffstat (limited to 'osdep/mac/libmpv_helper.swift')
| -rw-r--r-- | osdep/mac/libmpv_helper.swift | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/osdep/mac/libmpv_helper.swift b/osdep/mac/libmpv_helper.swift new file mode 100644 index 0000000..23953eb --- /dev/null +++ b/osdep/mac/libmpv_helper.swift @@ -0,0 +1,181 @@ +/* + * This file is part of mpv. + * + * mpv is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * mpv is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with mpv. If not, see <http://www.gnu.org/licenses/>. + */ + +import Cocoa +import OpenGL.GL +import OpenGL.GL3 + +let glDummy: @convention(c) () -> Void = {} + +class LibmpvHelper { + var log: LogHelper + var mpv: OpaquePointer? + var mpvRenderContext: OpaquePointer? + var fbo: GLint = 1 + let uninitLock = NSLock() + + init(_ mpv: OpaquePointer, _ log: LogHelper) { + self.mpv = mpv + self.log = log + } + + func initRender() { + let advanced: CInt = 1 + let api = UnsafeMutableRawPointer(mutating: (MPV_RENDER_API_TYPE_OPENGL as NSString).utf8String) + let pAddress = mpv_opengl_init_params(get_proc_address: getProcAddress, + get_proc_address_ctx: nil) + + TypeHelper.withUnsafeMutableRawPointers([pAddress, advanced]) { (pointers: [UnsafeMutableRawPointer?]) in + var params: [mpv_render_param] = [ + mpv_render_param(type: MPV_RENDER_PARAM_API_TYPE, data: api), + mpv_render_param(type: MPV_RENDER_PARAM_OPENGL_INIT_PARAMS, data: pointers[0]), + mpv_render_param(type: MPV_RENDER_PARAM_ADVANCED_CONTROL, data: pointers[1]), + mpv_render_param() + ] + + if (mpv_render_context_create(&mpvRenderContext, mpv, ¶ms) < 0) { + log.error("Render context init has failed.") + exit(1) + } + } + } + + let getProcAddress: (@convention(c) (UnsafeMutableRawPointer?, UnsafePointer<Int8>?) + -> UnsafeMutableRawPointer?) = + { + (ctx: UnsafeMutableRawPointer?, name: UnsafePointer<Int8>?) + -> UnsafeMutableRawPointer? in + let symbol: CFString = CFStringCreateWithCString( + kCFAllocatorDefault, name, kCFStringEncodingASCII) + let identifier = CFBundleGetBundleWithIdentifier("com.apple.opengl" as CFString) + let addr = CFBundleGetFunctionPointerForName(identifier, symbol) + + if symbol as String == "glFlush" { + return unsafeBitCast(glDummy, to: UnsafeMutableRawPointer.self) + } + + return addr + } + + func setRenderUpdateCallback(_ callback: @escaping mpv_render_update_fn, context object: AnyObject) { + if mpvRenderContext == nil { + log.warning("Init mpv render context first.") + } else { + mpv_render_context_set_update_callback(mpvRenderContext, callback, TypeHelper.bridge(obj: object)) + } + } + + func setRenderControlCallback(_ callback: @escaping mp_render_cb_control_fn, context object: AnyObject) { + if mpvRenderContext == nil { + log.warning("Init mpv render context first.") + } else { + mp_render_context_set_control_callback(mpvRenderContext, callback, TypeHelper.bridge(obj: object)) + } + } + + func reportRenderFlip() { + if mpvRenderContext == nil { return } + mpv_render_context_report_swap(mpvRenderContext) + } + + func isRenderUpdateFrame() -> Bool { + uninitLock.lock() + if mpvRenderContext == nil { + uninitLock.unlock() + return false + } + let flags: UInt64 = mpv_render_context_update(mpvRenderContext) + uninitLock.unlock() + return flags & UInt64(MPV_RENDER_UPDATE_FRAME.rawValue) > 0 + } + + func drawRender(_ surface: NSSize, _ depth: GLint, _ ctx: CGLContextObj, skip: Bool = false) { + uninitLock.lock() + if mpvRenderContext != nil { + var i: GLint = 0 + let flip: CInt = 1 + let skip: CInt = skip ? 1 : 0 + let ditherDepth = depth + glGetIntegerv(GLenum(GL_DRAW_FRAMEBUFFER_BINDING), &i) + // CAOpenGLLayer has ownership of FBO zero yet can return it to us, + // so only utilize a newly received FBO ID if it is nonzero. + fbo = i != 0 ? i : fbo + + let data = mpv_opengl_fbo(fbo: Int32(fbo), + w: Int32(surface.width), + h: Int32(surface.height), + internal_format: 0) + + TypeHelper.withUnsafeMutableRawPointers([data, flip, ditherDepth, skip]) { (pointers: [UnsafeMutableRawPointer?]) in + var params: [mpv_render_param] = [ + mpv_render_param(type: MPV_RENDER_PARAM_OPENGL_FBO, data: pointers[0]), + mpv_render_param(type: MPV_RENDER_PARAM_FLIP_Y, data: pointers[1]), + mpv_render_param(type: MPV_RENDER_PARAM_DEPTH, data: pointers[2]), + mpv_render_param(type: MPV_RENDER_PARAM_SKIP_RENDERING, data: pointers[3]), + mpv_render_param() + ] + mpv_render_context_render(mpvRenderContext, ¶ms); + } + } else { + glClearColor(0, 0, 0, 1) + glClear(GLbitfield(GL_COLOR_BUFFER_BIT)) + } + + if !skip { CGLFlushDrawable(ctx) } + + uninitLock.unlock() + } + + func setRenderICCProfile(_ profile: NSColorSpace) { + if mpvRenderContext == nil { return } + guard var iccData = profile.iccProfileData else { + log.warning("Invalid ICC profile data.") + return + } + iccData.withUnsafeMutableBytes { (ptr: UnsafeMutableRawBufferPointer) in + guard let baseAddress = ptr.baseAddress, ptr.count > 0 else { return } + + let u8Ptr = baseAddress.assumingMemoryBound(to: UInt8.self) + let iccBstr = bstrdup(nil, bstr(start: u8Ptr, len: ptr.count)) + var icc = mpv_byte_array(data: iccBstr.start, size: iccBstr.len) + withUnsafeMutableBytes(of: &icc) { (ptr: UnsafeMutableRawBufferPointer) in + let params = mpv_render_param(type: MPV_RENDER_PARAM_ICC_PROFILE, data: ptr.baseAddress) + mpv_render_context_set_parameter(mpvRenderContext, params) + } + } + } + + func setRenderLux(_ lux: Int) { + if mpvRenderContext == nil { return } + var light = lux + withUnsafeMutableBytes(of: &light) { (ptr: UnsafeMutableRawBufferPointer) in + let params = mpv_render_param(type: MPV_RENDER_PARAM_AMBIENT_LIGHT, data: ptr.baseAddress) + mpv_render_context_set_parameter(mpvRenderContext, params) + } + } + + func uninit() { + mpv_render_context_set_update_callback(mpvRenderContext, nil, nil) + mp_render_context_set_control_callback(mpvRenderContext, nil, nil) + uninitLock.lock() + mpv_render_context_free(mpvRenderContext) + mpvRenderContext = nil + mpv_destroy(mpv) + mpv = nil + uninitLock.unlock() + } +} |