+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2008 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#ifndef STW_FRAMEBUFFER_H
-#define STW_FRAMEBUFFER_H
-
-#include <windows.h>
-
-#include <GL/gl.h>
-#include <GL/wglext.h>
-
-#include "util/u_debug.h"
-#include "stw_st.h"
-
-
-struct pipe_resource;
-struct st_framebuffer_iface;
-struct stw_pixelformat_info;
-
-/**
- * Windows framebuffer.
- */
-struct stw_framebuffer
-{
- /**
- * This mutex has two purposes:
- * - protect the access to the mutable data members below
- * - prevent the framebuffer from being deleted while being accessed.
- *
- * Note: if both this mutex and the stw_device::fb_mutex need to be locked,
- * the stw_device::fb_mutex needs to be locked first.
- */
- CRITICAL_SECTION mutex;
-
- /*
- * Immutable members.
- *
- * Note that even access to immutable members implies acquiring the mutex
- * above, to prevent the framebuffer from being destroyed.
- */
-
- HWND hWnd;
-
- int iPixelFormat;
- const struct stw_pixelformat_info *pfi;
-
- /* A pixel format that can be used by GDI */
- int iDisplayablePixelFormat;
- boolean bPbuffer;
-
- struct st_framebuffer_iface *stfb;
-
- /*
- * Mutable members.
- */
-
- unsigned refcnt;
-
-
- /* FIXME: Make this work for multiple contexts bound to the same framebuffer */
- boolean must_resize;
-
- boolean minimized; /**< Is the window currently minimized? */
-
- unsigned width;
- unsigned height;
-
- /** WGL_ARB_render_texture - set at Pbuffer creation time */
- unsigned textureFormat; /**< WGL_NO_TEXTURE or WGL_TEXTURE_RGB[A]_ARB */
- unsigned textureTarget; /**< WGL_NO_TEXTURE or WGL_TEXTURE_1D/2D/
- CUBE_MAP_ARB */
- boolean textureMipmap; /**< TRUE/FALSE */
- /** WGL_ARB_render_texture - set with wglSetPbufferAttribARB() */
- unsigned textureLevel;
- unsigned textureFace; /**< [0..6] */
-
- /**
- * Client area rectangle, relative to the window upper-left corner.
- *
- * @sa GLCBPRESENTBUFFERSDATA::rect.
- */
- RECT client_rect;
-
- HANDLE hSharedSurface;
- struct stw_shared_surface *shared_surface;
-
- /* For WGL_EXT_swap_control */
- int64_t prev_swap_time;
-
- /**
- * This is protected by stw_device::fb_mutex, not the mutex above.
- *
- * Deletions must be done by first acquiring stw_device::fb_mutex, and then
- * acquiring the stw_framebuffer::mutex of the framebuffer to be deleted.
- * This ensures that nobody else is reading/writing to the.
- *
- * It is not necessary to acquire the mutex above to navigate the linked list
- * given that deletions are done with stw_device::fb_mutex held, so no other
- * thread can delete.
- */
- struct stw_framebuffer *next;
-};
-
-
-/**
- * Create a new framebuffer object which will correspond to the given HDC.
- *
- * This function will acquire stw_framebuffer::mutex. stw_framebuffer_unlock
- * must be called when done
- */
-struct stw_framebuffer *
-stw_framebuffer_create(HDC hdc, int iPixelFormat);
-
-
-/**
- * Increase fb reference count. The referenced framebuffer should be locked.
- *
- * It's not necessary to hold stw_dev::fb_mutex global lock.
- */
-static inline void
-stw_framebuffer_reference_locked(struct stw_framebuffer *fb)
-{
- if (fb) {
- assert(stw_own_mutex(&fb->mutex));
- fb->refcnt++;
- }
-}
-
-
-void
-stw_framebuffer_release_locked(struct stw_framebuffer *fb);
-
-/**
- * Search a framebuffer with a matching HWND.
- *
- * This function will acquire stw_framebuffer::mutex. stw_framebuffer_unlock
- * must be called when done
- */
-struct stw_framebuffer *
-stw_framebuffer_from_hwnd(HWND hwnd);
-
-/**
- * Search a framebuffer with a matching HDC.
- *
- * This function will acquire stw_framebuffer::mutex. stw_framebuffer_unlock
- * must be called when done
- */
-struct stw_framebuffer *
-stw_framebuffer_from_hdc(HDC hdc);
-
-BOOL
-stw_framebuffer_present_locked(HDC hdc,
- struct stw_framebuffer *fb,
- struct pipe_resource *res);
-
-void
-stw_framebuffer_update(struct stw_framebuffer *fb);
-
-
-static inline void
-stw_framebuffer_lock(struct stw_framebuffer *fb)
-{
- assert(fb);
- EnterCriticalSection(&fb->mutex);
-}
-
-
-/**
- * Release stw_framebuffer::mutex lock. This framebuffer must not be accessed
- * after calling this function, as it may have been deleted by another thread
- * in the meanwhile.
- */
-static inline void
-stw_framebuffer_unlock(struct stw_framebuffer *fb)
-{
- assert(fb);
- assert(stw_own_mutex(&fb->mutex));
- LeaveCriticalSection(&fb->mutex);
-}
-
-
-/**
- * Cleanup any existing framebuffers when exiting application.
- */
-void
-stw_framebuffer_cleanup(void);
-
-
-static inline struct stw_st_framebuffer *
-stw_st_framebuffer(struct st_framebuffer_iface *stfb)
-{
- return (struct stw_st_framebuffer *) stfb;
-}
-
-
-static inline struct stw_framebuffer *
-stw_framebuffer_from_HPBUFFERARB(HPBUFFERARB hPbuffer)
-{
- return (struct stw_framebuffer *) hPbuffer;
-}
-
-
-#endif /* STW_FRAMEBUFFER_H */
projects / mesa.git / blobdiff