+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
- * 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 TUNGSTEN GRAPHICS 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.
- *
- **************************************************************************/
-
-#include <windows.h>
-
-#include "main/context.h"
-#include "pipe/p_format.h"
-#include "pipe/p_screen.h"
-#include "state_tracker/st_context.h"
-#include "state_tracker/st_public.h"
-
-#ifdef DEBUG
-#include "trace/tr_screen.h"
-#include "trace/tr_texture.h"
-#endif
-
-#include "stw_framebuffer.h"
-#include "stw_device.h"
-#include "stw_public.h"
-#include "stw_winsys.h"
-#include "stw_tls.h"
-
-
-/**
- * Search the framebuffer with the matching HWND while holding the
- * stw_dev::fb_mutex global lock.
- */
-static INLINE struct stw_framebuffer *
-stw_framebuffer_from_hwnd_locked(
- HWND hwnd )
-{
- struct stw_framebuffer *fb;
-
- for (fb = stw_dev->fb_head; fb != NULL; fb = fb->next)
- if (fb->hWnd == hwnd) {
- pipe_mutex_lock(fb->mutex);
- break;
- }
-
- return fb;
-}
-
-
-/**
- * Destroy this framebuffer. Both stw_dev::fb_mutex and stw_framebuffer::mutex
- * must be held, by this order. Obviously no further access to fb can be done
- * after this.
- */
-static INLINE void
-stw_framebuffer_destroy_locked(
- struct stw_framebuffer *fb )
-{
- struct stw_framebuffer **link;
-
- link = &stw_dev->fb_head;
- while (*link != fb)
- link = &(*link)->next;
- assert(*link);
- *link = fb->next;
- fb->next = NULL;
-
- st_unreference_framebuffer(fb->stfb);
-
- pipe_mutex_unlock( fb->mutex );
-
- pipe_mutex_destroy( fb->mutex );
-
- FREE( fb );
-}
-
-
-void
-stw_framebuffer_release(
- struct stw_framebuffer *fb)
-{
- assert(fb);
- pipe_mutex_unlock( fb->mutex );
-}
-
-
-static INLINE void
-stw_framebuffer_get_size( struct stw_framebuffer *fb )
-{
- unsigned width, height;
- RECT rect;
-
- assert(fb->hWnd);
-
- GetClientRect( fb->hWnd, &rect );
- width = rect.right - rect.left;
- height = rect.bottom - rect.top;
-
- if(width < 1)
- width = 1;
- if(height < 1)
- height = 1;
-
- if(width != fb->width || height != fb->height) {
- fb->must_resize = TRUE;
- fb->width = width;
- fb->height = height;
- }
-}
-
-
-/**
- * @sa http://msdn.microsoft.com/en-us/library/ms644975(VS.85).aspx
- * @sa http://msdn.microsoft.com/en-us/library/ms644960(VS.85).aspx
- */
-LRESULT CALLBACK
-stw_call_window_proc(
- int nCode,
- WPARAM wParam,
- LPARAM lParam )
-{
- struct stw_tls_data *tls_data;
- PCWPSTRUCT pParams = (PCWPSTRUCT)lParam;
- struct stw_framebuffer *fb;
-
- tls_data = stw_tls_get_data();
- if(!tls_data)
- return 0;
-
- if (nCode < 0)
- return CallNextHookEx(tls_data->hCallWndProcHook, nCode, wParam, lParam);
-
- if (pParams->message == WM_WINDOWPOSCHANGED) {
- /* We handle WM_WINDOWPOSCHANGED instead of WM_SIZE because according to
- * http://blogs.msdn.com/oldnewthing/archive/2008/01/15/7113860.aspx
- * WM_SIZE is generated from WM_WINDOWPOSCHANGED by DefWindowProc so it
- * can be masked out by the application. */
- LPWINDOWPOS lpWindowPos = (LPWINDOWPOS)pParams->lParam;
- if((lpWindowPos->flags & SWP_SHOWWINDOW) ||
- !(lpWindowPos->flags & SWP_NOSIZE)) {
- fb = stw_framebuffer_from_hwnd( pParams->hwnd );
- if(fb) {
- /* Size in WINDOWPOS includes the window frame, so get the size
- * of the client area via GetClientRect. */
- stw_framebuffer_get_size(fb);
- stw_framebuffer_release(fb);
- }
- }
- }
- else if (pParams->message == WM_DESTROY) {
- pipe_mutex_lock( stw_dev->fb_mutex );
- fb = stw_framebuffer_from_hwnd_locked( pParams->hwnd );
- if(fb)
- stw_framebuffer_destroy_locked(fb);
- pipe_mutex_unlock( stw_dev->fb_mutex );
- }
-
- return CallNextHookEx(tls_data->hCallWndProcHook, nCode, wParam, lParam);
-}
-
-
-struct stw_framebuffer *
-stw_framebuffer_create(
- HDC hdc,
- int iPixelFormat )
-{
- HWND hWnd;
- struct stw_framebuffer *fb;
- const struct stw_pixelformat_info *pfi;
-
- /* We only support drawing to a window. */
- hWnd = WindowFromDC( hdc );
- if(!hWnd)
- return NULL;
-
- fb = CALLOC_STRUCT( stw_framebuffer );
- if (fb == NULL)
- return NULL;
-
- fb->hDC = hdc;
- fb->hWnd = hWnd;
- fb->iPixelFormat = iPixelFormat;
-
- fb->pfi = pfi = stw_pixelformat_get_info( iPixelFormat - 1 );
-
- stw_pixelformat_visual(&fb->visual, pfi);
-
- stw_framebuffer_get_size(fb);
-
- pipe_mutex_init( fb->mutex );
-
- /* This is the only case where we lock the stw_framebuffer::mutex before
- * stw_dev::fb_mutex, since no other thread can know about this framebuffer
- * and we must prevent any other thread from destroying it before we return.
- */
- pipe_mutex_lock( fb->mutex );
-
- pipe_mutex_lock( stw_dev->fb_mutex );
- fb->next = stw_dev->fb_head;
- stw_dev->fb_head = fb;
- pipe_mutex_unlock( stw_dev->fb_mutex );
-
- return fb;
-}
-
-
-BOOL
-stw_framebuffer_allocate(
- struct stw_framebuffer *fb)
-{
- assert(fb);
-
- if(!fb->stfb) {
- const struct stw_pixelformat_info *pfi = fb->pfi;
- enum pipe_format colorFormat, depthFormat, stencilFormat;
-
- colorFormat = pfi->color_format;
-
- assert(pf_layout( pfi->depth_stencil_format ) == PIPE_FORMAT_LAYOUT_RGBAZS );
-
- if(pf_get_component_bits( pfi->depth_stencil_format, PIPE_FORMAT_COMP_Z ))
- depthFormat = pfi->depth_stencil_format;
- else
- depthFormat = PIPE_FORMAT_NONE;
-
- if(pf_get_component_bits( pfi->depth_stencil_format, PIPE_FORMAT_COMP_S ))
- stencilFormat = pfi->depth_stencil_format;
- else
- stencilFormat = PIPE_FORMAT_NONE;
-
- assert(fb->must_resize);
- assert(fb->width);
- assert(fb->height);
-
- fb->stfb = st_create_framebuffer(
- &fb->visual,
- colorFormat,
- depthFormat,
- stencilFormat,
- fb->width,
- fb->height,
- (void *) fb );
-
- // to notify the context
- fb->must_resize = TRUE;
- }
-
- return fb->stfb ? TRUE : FALSE;
-}
-
-
-/**
- * Update the framebuffer's size if necessary.
- */
-void
-stw_framebuffer_update(
- struct stw_framebuffer *fb)
-{
- assert(fb->stfb);
- assert(fb->height);
- assert(fb->width);
-
- /* XXX: It would be nice to avoid checking the size again -- in theory
- * stw_call_window_proc would have cought the resize and stored the right
- * size already, but unfortunately threads created before the DllMain is
- * called don't get a DLL_THREAD_ATTACH notification, and there is no way
- * to know of their existing without using the not very portable PSAPI.
- */
- stw_framebuffer_get_size(fb);
-
- if(fb->must_resize) {
- st_resize_framebuffer(fb->stfb, fb->width, fb->height);
- fb->must_resize = FALSE;
- }
-}
-
-
-void
-stw_framebuffer_cleanup( void )
-{
- struct stw_framebuffer *fb;
- struct stw_framebuffer *next;
-
- pipe_mutex_lock( stw_dev->fb_mutex );
-
- fb = stw_dev->fb_head;
- while (fb) {
- next = fb->next;
-
- pipe_mutex_lock(fb->mutex);
- stw_framebuffer_destroy_locked(fb);
-
- fb = next;
- }
- stw_dev->fb_head = NULL;
-
- pipe_mutex_unlock( stw_dev->fb_mutex );
-}
-
-
-/**
- * Given an hdc, return the corresponding stw_framebuffer.
- */
-static INLINE struct stw_framebuffer *
-stw_framebuffer_from_hdc_locked(
- HDC hdc )
-{
- HWND hwnd;
- struct stw_framebuffer *fb;
-
- /*
- * Some applications create and use several HDCs for the same window, so
- * looking up the framebuffer by the HDC is not reliable. Use HWND whenever
- * possible.
- */
- hwnd = WindowFromDC(hdc);
- if(hwnd)
- return stw_framebuffer_from_hwnd_locked(hwnd);
-
- for (fb = stw_dev->fb_head; fb != NULL; fb = fb->next)
- if (fb->hDC == hdc) {
- pipe_mutex_lock(fb->mutex);
- break;
- }
-
- return fb;
-}
-
-
-/**
- * Given an hdc, return the corresponding stw_framebuffer.
- */
-struct stw_framebuffer *
-stw_framebuffer_from_hdc(
- HDC hdc )
-{
- struct stw_framebuffer *fb;
-
- pipe_mutex_lock( stw_dev->fb_mutex );
- fb = stw_framebuffer_from_hdc_locked(hdc);
- pipe_mutex_unlock( stw_dev->fb_mutex );
-
- return fb;
-}
-
-
-/**
- * Given an hdc, return the corresponding stw_framebuffer.
- */
-struct stw_framebuffer *
-stw_framebuffer_from_hwnd(
- HWND hwnd )
-{
- struct stw_framebuffer *fb;
-
- pipe_mutex_lock( stw_dev->fb_mutex );
- fb = stw_framebuffer_from_hwnd_locked(hwnd);
- pipe_mutex_unlock( stw_dev->fb_mutex );
-
- return fb;
-}
-
-
-BOOL
-stw_pixelformat_set(
- HDC hdc,
- int iPixelFormat )
-{
- uint count;
- uint index;
- struct stw_framebuffer *fb;
-
- index = (uint) iPixelFormat - 1;
- count = stw_pixelformat_get_extended_count();
- if (index >= count)
- return FALSE;
-
- fb = stw_framebuffer_from_hdc_locked(hdc);
- if(fb) {
- /* SetPixelFormat must be called only once */
- stw_framebuffer_release( fb );
- return FALSE;
- }
-
- fb = stw_framebuffer_create(hdc, iPixelFormat);
- if(!fb) {
- return FALSE;
- }
-
- stw_framebuffer_release( fb );
-
- /* Some applications mistakenly use the undocumented wglSetPixelFormat
- * function instead of SetPixelFormat, so we call SetPixelFormat here to
- * avoid opengl32.dll's wglCreateContext to fail */
- if (GetPixelFormat(hdc) == 0) {
- SetPixelFormat(hdc, iPixelFormat, NULL);
- }
-
- return TRUE;
-}
-
-
-int
-stw_pixelformat_get(
- HDC hdc )
-{
- int iPixelFormat = 0;
- struct stw_framebuffer *fb;
-
- fb = stw_framebuffer_from_hdc(hdc);
- if(fb) {
- iPixelFormat = fb->iPixelFormat;
- stw_framebuffer_release(fb);
- }
-
- return iPixelFormat;
-}
-
-
-BOOL
-stw_swap_buffers(
- HDC hdc )
-{
- struct stw_framebuffer *fb;
- struct pipe_screen *screen;
- struct pipe_surface *surface;
-
- fb = stw_framebuffer_from_hdc( hdc );
- if (fb == NULL)
- return FALSE;
-
- if (!(fb->pfi->pfd.dwFlags & PFD_DOUBLEBUFFER)) {
- stw_framebuffer_release(fb);
- return TRUE;
- }
-
- /* If we're swapping the buffer associated with the current context
- * we have to flush any pending rendering commands first.
- */
- st_notify_swapbuffers( fb->stfb );
-
- screen = stw_dev->screen;
-
- if(!st_get_framebuffer_surface( fb->stfb, ST_SURFACE_BACK_LEFT, &surface )) {
- /* FIXME: this shouldn't happen, but does on glean */
- stw_framebuffer_release(fb);
- return FALSE;
- }
-
-#ifdef DEBUG
- if(stw_dev->trace_running) {
- screen = trace_screen(screen)->screen;
- surface = trace_surface(surface)->surface;
- }
-#endif
-
- stw_dev->stw_winsys->flush_frontbuffer( screen, surface, hdc );
-
- stw_framebuffer_update(fb);
- stw_framebuffer_release(fb);
-
- return TRUE;
-}
-
-
-BOOL
-stw_swap_layer_buffers(
- HDC hdc,
- UINT fuPlanes )
-{
- if(fuPlanes & WGL_SWAP_MAIN_PLANE)
- return stw_swap_buffers(hdc);
-
- return FALSE;
-}
projects / mesa.git / blobdiff