Stu Leak
68df790d27
Major improvements to UnifiedPlayer: 1. GetFrameImage() now works when paused for responsive UI updates 2. Play() method properly starts FFmpeg process 3. Frame display loop runs continuously for smooth video display 4. Disabled audio temporarily to fix video playback fundamentals 5. Simplified FFmpeg command to focus on video stream only Player now: - Generates video frames correctly - Shows video when paused - Has responsive progress tracking - Starts playback properly Next steps: Re-enable audio playback once video is stable
95 lines
3.2 KiB
Go
95 lines
3.2 KiB
Go
package glfw
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//#include <stdlib.h>
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//#define GLFW_INCLUDE_NONE
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//#include "glfw/include/GLFW/glfw3.h"
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import "C"
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import (
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"unsafe"
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)
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// MakeContextCurrent makes the context of the window current.
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// Originally GLFW 3 passes a null pointer to detach the context.
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// But since we're using receievers, DetachCurrentContext should
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// be used instead.
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func (w *Window) MakeContextCurrent() {
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C.glfwMakeContextCurrent(w.data)
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panicError()
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}
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// DetachCurrentContext detaches the current context.
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func DetachCurrentContext() {
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C.glfwMakeContextCurrent(nil)
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panicError()
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}
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// GetCurrentContext returns the window whose context is current.
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func GetCurrentContext() *Window {
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w := C.glfwGetCurrentContext()
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panicError()
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if w == nil {
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return nil
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}
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return windows.get(w)
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}
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// SwapBuffers swaps the front and back buffers of the window. If the
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// swap interval is greater than zero, the GPU driver waits the specified number
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// of screen updates before swapping the buffers.
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func (w *Window) SwapBuffers() {
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C.glfwSwapBuffers(w.data)
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panicError()
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}
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// SwapInterval sets the swap interval for the current context, i.e. the number
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// of screen updates to wait before swapping the buffers of a window and
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// returning from SwapBuffers. This is sometimes called
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// 'vertical synchronization', 'vertical retrace synchronization' or 'vsync'.
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//
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// Contexts that support either of the WGL_EXT_swap_control_tear and
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// GLX_EXT_swap_control_tear extensions also accept negative swap intervals,
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// which allow the driver to swap even if a frame arrives a little bit late.
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// You can check for the presence of these extensions using
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// ExtensionSupported. For more information about swap tearing,
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// see the extension specifications.
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//
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// Some GPU drivers do not honor the requested swap interval, either because of
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// user settings that override the request or due to bugs in the driver.
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func SwapInterval(interval int) {
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C.glfwSwapInterval(C.int(interval))
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panicError()
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}
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// ExtensionSupported reports whether the specified OpenGL or context creation
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// API extension is supported by the current context. For example, on Windows
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// both the OpenGL and WGL extension strings are checked.
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//
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// As this functions searches one or more extension strings on each call, it is
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// recommended that you cache its results if it's going to be used frequently.
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// The extension strings will not change during the lifetime of a context, so
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// there is no danger in doing this.
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func ExtensionSupported(extension string) bool {
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e := C.CString(extension)
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defer C.free(unsafe.Pointer(e))
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ret := glfwbool(C.glfwExtensionSupported(e))
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panicError()
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return ret
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}
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// GetProcAddress returns the address of the specified OpenGL or OpenGL ES core
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// or extension function, if it is supported by the current context.
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//
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// A context must be current on the calling thread. Calling this function
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// without a current context will cause a GLFW_NO_CURRENT_CONTEXT error.
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//
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// This function is used to provide GL proc resolving capabilities to an
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// external C library.
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func GetProcAddress(procname string) unsafe.Pointer {
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p := C.CString(procname)
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defer C.free(unsafe.Pointer(p))
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ret := unsafe.Pointer(C.glfwGetProcAddress(p))
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panicError()
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return ret
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}
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