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https://github.com/mpv-player/mpv
synced 2024-12-23 23:32:26 +00:00
win32: create OpenGL context on the GUI thread
This fixes the fullscreen issues on Intel for me. I'm baffled by it and don't understand why this suddenly works. Intel drivers being shit? Windows being shit? HWND or HDC being only 97% thread-safe instead of 98%? Me missing something subtle that is not documented anywhere? Who knows. Now instead of creating the HDC and OpenGL context on the renderer thread, they're created on the GUI thread. The renderer thread will then only call wglMakeCurrent, SwapBuffers, and OpenGL standard functions. Probably fixes github issue #968.
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@ -27,6 +27,7 @@
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struct w32_context {
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HGLRC context;
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HDC hdc;
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int flags;
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};
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static bool create_dc(struct MPGLContext *ctx, int flags)
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@ -193,6 +194,21 @@ out:
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return false;
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}
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static void create_ctx(void *ptr)
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{
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struct MPGLContext *ctx = ptr;
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struct w32_context *w32_ctx = ctx->priv;
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if (!create_dc(ctx, w32_ctx->flags))
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return;
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if (ctx->requested_gl_version >= MPGL_VER(3, 0))
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create_context_w32_gl3(ctx);
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if (!w32_ctx->context)
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create_context_w32_old(ctx);
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wglMakeCurrent(w32_ctx->hdc, NULL);
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}
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static bool config_window_w32(struct MPGLContext *ctx, int flags)
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{
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struct w32_context *w32_ctx = ctx->priv;
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@ -202,30 +218,35 @@ static bool config_window_w32(struct MPGLContext *ctx, int flags)
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if (w32_ctx->context) // reuse existing context
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return true;
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if (!create_dc(ctx, flags))
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return false;
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w32_ctx->flags = flags;
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vo_w32_run_on_thread(ctx->vo, create_ctx, ctx);
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bool success = false;
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if (ctx->requested_gl_version >= MPGL_VER(3, 0))
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success = create_context_w32_gl3(ctx);
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if (!success)
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success = create_context_w32_old(ctx);
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return success;
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if (w32_ctx->context)
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wglMakeCurrent(w32_ctx->hdc, w32_ctx->context);
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return !!w32_ctx->context;
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}
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static void releaseGlContext_w32(MPGLContext *ctx)
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static void destroy_gl(void *ptr)
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{
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struct MPGLContext *ctx = ptr;
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struct w32_context *w32_ctx = ctx->priv;
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if (w32_ctx->context) {
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wglMakeCurrent(w32_ctx->hdc, 0);
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if (w32_ctx->context)
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wglDeleteContext(w32_ctx->context);
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}
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w32_ctx->context = 0;
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if (w32_ctx->hdc)
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ReleaseDC(vo_w32_hwnd(ctx->vo), w32_ctx->hdc);
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w32_ctx->hdc = NULL;
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}
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static void releaseGlContext_w32(MPGLContext *ctx)
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{
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struct MPGLContext *ctx = ptr;
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struct w32_context *w32_ctx = ctx->priv;
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if (w32_ctx->context)
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wglMakeCurrent(w32_ctx->hdc, 0);
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vo_w32_run_on_thread(ctx->vo, destroy_gl, ctx);
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}
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static void swapGlBuffers_w32(MPGLContext *ctx)
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{
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struct w32_context *w32_ctx = ctx->priv;
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@ -1202,3 +1202,9 @@ HWND vo_w32_hwnd(struct vo *vo)
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struct vo_w32_state *w32 = vo->w32;
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return w32->window; // immutable, so no synchronization needed
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}
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void vo_w32_run_on_thread(struct vo *vo, void (*cb)(void *ctx), void *ctx)
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{
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struct vo_w32_state *w32 = vo->w32;
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mp_dispatch_run(w32->dispatch, cb, ctx);
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}
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@ -32,5 +32,6 @@ void vo_w32_uninit(struct vo *vo);
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int vo_w32_control(struct vo *vo, int *events, int request, void *arg);
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int vo_w32_config(struct vo *vo, uint32_t);
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HWND vo_w32_hwnd(struct vo *vo);
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void vo_w32_run_on_thread(struct vo *vo, void (*cb)(void *ctx), void *ctx);
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#endif /* MPLAYER_W32_COMMON_H */
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