forked from Leak_Technologies/VideoTools
9d33575ada
- Fix render.go CGO type assignments using plain uint32 casts - Add video playlist tracking with unique IDs - Improve drag-and-drop: assign to first available pane - Add parseURIs with crash protection for drag data - Improve mpv initialization handling - Update .gitignore for build artifacts (.cache, gtkplayer binary) - Improve GDK_BACKEND handling in run script 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
83 lines
2.5 KiB
Go
83 lines
2.5 KiB
Go
package mpvembed
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/*
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#cgo pkg-config: mpv
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#include <mpv/render.h>
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#include <stdlib.h>
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static inline const char* mpv_errstr_render(int err) { return mpv_error_string(err); }
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*/
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import "C"
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import (
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"fmt"
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"unsafe"
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)
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// RenderParam is a small helper to build mpv_render_param arrays.
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type RenderParam struct {
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Type int
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Data unsafe.Pointer
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}
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// RenderContext wraps mpv_render_context for render API (OpenGL/Vulkan, etc.).
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type RenderContext struct {
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ctx *C.mpv_render_context
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}
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// NewRenderContext creates a render context for the given client with the provided params.
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// The params slice is terminated with MPV_RENDER_PARAM_INVALID automatically.
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func NewRenderContext(c *Client, params []RenderParam) (*RenderContext, error) {
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if c == nil || c.handle == nil {
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return nil, fmt.Errorf("mpv client is nil")
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}
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cparams := make([]C.mpv_render_param, len(params)+1)
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for i, p := range params {
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cparams[i]._type = uint32(p.Type)
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cparams[i].data = p.Data
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}
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cparams[len(params)]._type = uint32(C.MPV_RENDER_PARAM_INVALID)
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var rctx *C.mpv_render_context
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if res := C.mpv_render_context_create(&rctx, c.handle, &cparams[0]); res < 0 {
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return nil, fmt.Errorf("mpv_render_context_create failed: %s", C.GoString(C.mpv_errstr_render(res)))
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}
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return &RenderContext{ctx: rctx}, nil
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}
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// Destroy frees the render context.
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func (r *RenderContext) Destroy() {
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if r != nil && r.ctx != nil {
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C.mpv_render_context_free(r.ctx)
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r.ctx = nil
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}
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}
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// SetUpdateCallback registers a callback that mpv will invoke when a new frame should be drawn.
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// The callback must be thread-safe.
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func (r *RenderContext) SetUpdateCallback(cb unsafe.Pointer, userdata unsafe.Pointer) error {
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if r == nil || r.ctx == nil {
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return fmt.Errorf("render context is nil")
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}
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C.mpv_render_context_set_update_callback(r.ctx, (C.mpv_render_update_fn)(cb), userdata)
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return nil
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}
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// Render issues a render call with the provided params (e.g., target FBO, dimensions).
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// The params slice is terminated automatically.
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func (r *RenderContext) Render(params []RenderParam) error {
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if r == nil || r.ctx == nil {
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return fmt.Errorf("render context is nil")
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}
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cparams := make([]C.mpv_render_param, len(params)+1)
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for i, p := range params {
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cparams[i]._type = uint32(p.Type)
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cparams[i].data = p.Data
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}
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cparams[len(params)]._type = uint32(C.MPV_RENDER_PARAM_INVALID)
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if res := C.mpv_render_context_render(r.ctx, &cparams[0]); res < 0 {
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return fmt.Errorf("mpv_render_context_render failed: %s", C.GoString(C.mpv_errstr_render(res)))
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}
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return nil
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}
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