Alexandre Julliard : opengl32: Allocate a separate context structure to store generic information.
Module: wine Branch: master Commit: 2077a58c2182251b9577ce6be0a117949bdad34f URL: http://source.winehq.org/git/wine.git/?a=commit;h=2077a58c2182251b9577ce6be0... Author: Alexandre Julliard <julliard(a)winehq.org> Date: Mon Jul 16 22:53:28 2012 +0200 opengl32: Allocate a separate context structure to store generic information. --- dlls/opengl32/wgl.c | 76 ++++++++++++++++++++++++++++++++------------------- 1 files changed, 48 insertions(+), 28 deletions(-) diff --git a/dlls/opengl32/wgl.c b/dlls/opengl32/wgl.c index ca953e0..3dc2b18 100644 --- a/dlls/opengl32/wgl.c +++ b/dlls/opengl32/wgl.c @@ -65,16 +65,21 @@ enum wgl_handle_type HANDLE_TYPE_MASK = 15 << 12 }; +struct opengl_context +{ + DWORD tid; /* thread that the context is current in */ + struct wgl_context *drv_ctx; /* driver context */ +}; + struct wgl_handle { UINT handle; - DWORD tid; struct opengl_funcs *funcs; union { - struct wgl_context *context; /* for HANDLE_CONTEXT */ - struct wgl_pbuffer *pbuffer; /* for HANDLE_PBUFFER */ - struct wgl_handle *next; /* for free handles */ + struct opengl_context *context; /* for HANDLE_CONTEXT */ + struct wgl_pbuffer *pbuffer; /* for HANDLE_PBUFFER */ + struct wgl_handle *next; /* for free handles */ } u; }; @@ -183,7 +188,8 @@ BOOL WINAPI wglCopyContext(HGLRC hglrcSrc, HGLRC hglrcDst, UINT mask) if ((dst = get_handle_ptr( hglrcDst, HANDLE_CONTEXT ))) { if (src->funcs != dst->funcs) SetLastError( ERROR_INVALID_HANDLE ); - else ret = src->funcs->wgl.p_wglCopyContext( src->u.context, dst->u.context, mask ); + else ret = src->funcs->wgl.p_wglCopyContext( src->u.context->drv_ctx, + dst->u.context->drv_ctx, mask ); } release_handle_ptr( dst ); release_handle_ptr( src ); @@ -199,14 +205,15 @@ BOOL WINAPI wglDeleteContext(HGLRC hglrc) if (!ptr) return FALSE; - if (ptr->tid && ptr->tid != GetCurrentThreadId()) + if (ptr->u.context->tid && ptr->u.context->tid != GetCurrentThreadId()) { SetLastError( ERROR_BUSY ); release_handle_ptr( ptr ); return FALSE; } if (hglrc == NtCurrentTeb()->glCurrentRC) wglMakeCurrent( 0, 0 ); - ptr->funcs->wgl.p_wglDeleteContext( ptr->u.context ); + ptr->funcs->wgl.p_wglDeleteContext( ptr->u.context->drv_ctx ); + HeapFree( GetProcessHeap(), 0, ptr->u.context ); free_handle_ptr( ptr ); return TRUE; } @@ -222,13 +229,13 @@ BOOL WINAPI wglMakeCurrent(HDC hdc, HGLRC hglrc) if (hglrc) { if (!(ptr = get_handle_ptr( hglrc, HANDLE_CONTEXT ))) return FALSE; - if (!ptr->tid || ptr->tid == GetCurrentThreadId()) + if (!ptr->u.context->tid || ptr->u.context->tid == GetCurrentThreadId()) { - ret = ptr->funcs->wgl.p_wglMakeCurrent( hdc, ptr->u.context ); + ret = ptr->funcs->wgl.p_wglMakeCurrent( hdc, ptr->u.context->drv_ctx ); if (ret) { - if (prev) prev->tid = 0; - ptr->tid = GetCurrentThreadId(); + if (prev) prev->u.context->tid = 0; + ptr->u.context->tid = GetCurrentThreadId(); NtCurrentTeb()->glCurrentRC = hglrc; NtCurrentTeb()->glTable = ptr->funcs; } @@ -243,7 +250,7 @@ BOOL WINAPI wglMakeCurrent(HDC hdc, HGLRC hglrc) else if (prev) { if (!prev->funcs->wgl.p_wglMakeCurrent( 0, NULL )) return FALSE; - prev->tid = 0; + prev->u.context->tid = 0; NtCurrentTeb()->glCurrentRC = 0; NtCurrentTeb()->glTable = &null_opengl_funcs; } @@ -263,17 +270,23 @@ BOOL WINAPI wglMakeCurrent(HDC hdc, HGLRC hglrc) HGLRC WINAPI wglCreateContextAttribsARB( HDC hdc, HGLRC share, const int *attribs ) { HGLRC ret = 0; - struct wgl_context *context; + struct wgl_context *drv_ctx; struct wgl_handle *share_ptr = NULL; + struct opengl_context *context; struct opengl_funcs *funcs = get_dc_funcs( hdc ); if (!funcs || !funcs->ext.p_wglCreateContextAttribsARB) return 0; if (share && !(share_ptr = get_handle_ptr( share, HANDLE_CONTEXT ))) return 0; - if ((context = funcs->ext.p_wglCreateContextAttribsARB( hdc, share_ptr ? share_ptr->u.context : NULL, - attribs ))) + if ((drv_ctx = funcs->ext.p_wglCreateContextAttribsARB( hdc, + share_ptr ? share_ptr->u.context->drv_ctx : NULL, attribs ))) { - ret = alloc_handle( HANDLE_CONTEXT, funcs, context ); - if (!ret) funcs->wgl.p_wglDeleteContext( context ); + if ((context = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*context) ))) + { + context->drv_ctx = drv_ctx; + if (!(ret = alloc_handle( HANDLE_CONTEXT, funcs, context ))) + HeapFree( GetProcessHeap(), 0, context ); + } + if (!ret) funcs->wgl.p_wglDeleteContext( drv_ctx ); } release_handle_ptr( share_ptr ); return ret; @@ -293,14 +306,15 @@ BOOL WINAPI wglMakeContextCurrentARB( HDC draw_hdc, HDC read_hdc, HGLRC hglrc ) if (hglrc) { if (!(ptr = get_handle_ptr( hglrc, HANDLE_CONTEXT ))) return FALSE; - if (!ptr->tid || ptr->tid == GetCurrentThreadId()) + if (!ptr->u.context->tid || ptr->u.context->tid == GetCurrentThreadId()) { ret = (ptr->funcs->ext.p_wglMakeContextCurrentARB && - ptr->funcs->ext.p_wglMakeContextCurrentARB( draw_hdc, read_hdc, ptr->u.context )); + ptr->funcs->ext.p_wglMakeContextCurrentARB( draw_hdc, read_hdc, + ptr->u.context->drv_ctx )); if (ret) { - if (prev) prev->tid = 0; - ptr->tid = GetCurrentThreadId(); + if (prev) prev->u.context->tid = 0; + ptr->u.context->tid = GetCurrentThreadId(); NtCurrentTeb()->glCurrentRC = hglrc; NtCurrentTeb()->glTable = ptr->funcs; } @@ -315,7 +329,7 @@ BOOL WINAPI wglMakeContextCurrentARB( HDC draw_hdc, HDC read_hdc, HGLRC hglrc ) else if (prev) { if (!prev->funcs->wgl.p_wglMakeCurrent( 0, NULL )) return FALSE; - prev->tid = 0; + prev->u.context->tid = 0; NtCurrentTeb()->glCurrentRC = 0; NtCurrentTeb()->glTable = &null_opengl_funcs; } @@ -347,7 +361,7 @@ BOOL WINAPI wglShareLists(HGLRC hglrcSrc, HGLRC hglrcDst) if ((dst = get_handle_ptr( hglrcDst, HANDLE_CONTEXT ))) { if (src->funcs != dst->funcs) SetLastError( ERROR_INVALID_HANDLE ); - else ret = src->funcs->wgl.p_wglShareLists( src->u.context, dst->u.context ); + else ret = src->funcs->wgl.p_wglShareLists( src->u.context->drv_ctx, dst->u.context->drv_ctx ); } release_handle_ptr( dst ); release_handle_ptr( src ); @@ -361,7 +375,7 @@ HDC WINAPI wglGetCurrentDC(void) { struct wgl_handle *context = get_current_context_ptr(); if (!context) return 0; - return context->funcs->wgl.p_wglGetCurrentDC( context->u.context ); + return context->funcs->wgl.p_wglGetCurrentDC( context->u.context->drv_ctx ); } /*********************************************************************** @@ -370,13 +384,19 @@ HDC WINAPI wglGetCurrentDC(void) HGLRC WINAPI wglCreateContext(HDC hdc) { HGLRC ret = 0; - struct wgl_context *context; + struct wgl_context *drv_ctx; + struct opengl_context *context; struct opengl_funcs *funcs = get_dc_funcs( hdc ); if (!funcs) return 0; - if (!(context = funcs->wgl.p_wglCreateContext( hdc ))) return 0; - ret = alloc_handle( HANDLE_CONTEXT, funcs, context ); - if (!ret) funcs->wgl.p_wglDeleteContext( context ); + if (!(drv_ctx = funcs->wgl.p_wglCreateContext( hdc ))) return 0; + if ((context = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*context) ))) + { + context->drv_ctx = drv_ctx; + if (!(ret = alloc_handle( HANDLE_CONTEXT, funcs, context ))) + HeapFree( GetProcessHeap(), 0, context ); + } + if (!ret) funcs->wgl.p_wglDeleteContext( drv_ctx ); return ret; }
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Alexandre Julliard