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Diffstat (limited to 'src/egl/main/eglscreen.c')
| -rw-r--r-- | src/egl/main/eglscreen.c | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/src/egl/main/eglscreen.c b/src/egl/main/eglscreen.c deleted file mode 100644 index 42ac621fcd9..00000000000 --- a/src/egl/main/eglscreen.c +++ /dev/null @@ -1,235 +0,0 @@ -/************************************************************************** - * - * Copyright 2008 VMware, Inc. - * Copyright 2009-2010 Chia-I Wu <[email protected]> - * Copyright 2010 LunarG, 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 NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS 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. - * - **************************************************************************/ - - -/* - * Ideas for screen management extension to EGL. - * - * Each EGLDisplay has one or more screens (CRTs, Flat Panels, etc). - * The screens' handles can be obtained with eglGetScreensMESA(). - * - * A new kind of EGLSurface is possible- one which can be directly scanned - * out on a screen. Such a surface is created with eglCreateScreenSurface(). - * - * To actually display a screen surface on a screen, the eglShowSurface() - * function is called. - */ - -#include <assert.h> -#include <stdlib.h> -#include <string.h> -#include "c11/threads.h" - -#include "egldisplay.h" -#include "eglcurrent.h" -#include "eglmode.h" -#include "eglsurface.h" -#include "eglscreen.h" - - -#ifdef EGL_MESA_screen_surface - - -/* ugh, no atomic op? */ -static mtx_t _eglNextScreenHandleMutex = _MTX_INITIALIZER_NP; -static EGLScreenMESA _eglNextScreenHandle = 1; - - -/** - * Return a new screen handle/ID. - * NOTE: we never reuse these! - */ -static EGLScreenMESA -_eglAllocScreenHandle(void) -{ - EGLScreenMESA s; - - mtx_lock(&_eglNextScreenHandleMutex); - s = _eglNextScreenHandle; - _eglNextScreenHandle += _EGL_SCREEN_MAX_MODES; - mtx_unlock(&_eglNextScreenHandleMutex); - - return s; -} - - -/** - * Initialize an _EGLScreen object to default values. - */ -void -_eglInitScreen(_EGLScreen *screen, _EGLDisplay *dpy, EGLint num_modes) -{ - memset(screen, 0, sizeof(_EGLScreen)); - - screen->Display = dpy; - screen->NumModes = num_modes; - screen->StepX = 1; - screen->StepY = 1; - - if (num_modes > _EGL_SCREEN_MAX_MODES) - num_modes = _EGL_SCREEN_MAX_MODES; - screen->Modes = calloc(num_modes, sizeof(*screen->Modes)); - screen->NumModes = (screen->Modes) ? num_modes : 0; -} - - -/** - * Link a screen to its display and return the handle of the link. - * The handle can be passed to client directly. - */ -EGLScreenMESA -_eglLinkScreen(_EGLScreen *screen) -{ - _EGLDisplay *display; - EGLint i; - - assert(screen && screen->Display); - display = screen->Display; - - if (!display->Screens) { - display->Screens = _eglCreateArray("Screen", 4); - if (!display->Screens) - return (EGLScreenMESA) 0; - } - - screen->Handle = _eglAllocScreenHandle(); - for (i = 0; i < screen->NumModes; i++) - screen->Modes[i].Handle = screen->Handle + i; - - _eglAppendArray(display->Screens, (void *) screen); - - return screen->Handle; -} - - -/** - * Lookup a handle to find the linked config. - * Return NULL if the handle has no corresponding linked config. - */ -_EGLScreen * -_eglLookupScreen(EGLScreenMESA screen, _EGLDisplay *display) -{ - EGLint i; - - if (!display || !display->Screens) - return NULL; - - for (i = 0; i < display->Screens->Size; i++) { - _EGLScreen *scr = (_EGLScreen *) display->Screens->Elements[i]; - if (scr->Handle == screen) { - assert(scr->Display == display); - return scr; - } - } - return NULL; -} - - -static EGLBoolean -_eglFlattenScreen(void *elem, void *buffer) -{ - _EGLScreen *scr = (_EGLScreen *) elem; - EGLScreenMESA *handle = (EGLScreenMESA *) buffer; - *handle = _eglGetScreenHandle(scr); - return EGL_TRUE; -} - - -EGLBoolean -_eglGetScreensMESA(_EGLDriver *drv, _EGLDisplay *display, EGLScreenMESA *screens, - EGLint max_screens, EGLint *num_screens) -{ - *num_screens = _eglFlattenArray(display->Screens, (void *) screens, - sizeof(screens[0]), max_screens, _eglFlattenScreen); - - return EGL_TRUE; -} - - -/** - * Set a screen's surface origin. - */ -EGLBoolean -_eglScreenPositionMESA(_EGLDriver *drv, _EGLDisplay *dpy, - _EGLScreen *scrn, EGLint x, EGLint y) -{ - scrn->OriginX = x; - scrn->OriginY = y; - - return EGL_TRUE; -} - - -/** - * Query a screen's current surface. - */ -EGLBoolean -_eglQueryScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy, - _EGLScreen *scrn, _EGLSurface **surf) -{ - *surf = scrn->CurrentSurface; - return EGL_TRUE; -} - - -/** - * Query a screen's current mode. - */ -EGLBoolean -_eglQueryScreenModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, - _EGLMode **m) -{ - *m = scrn->CurrentMode; - return EGL_TRUE; -} - - -EGLBoolean -_eglQueryScreenMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, - EGLint attribute, EGLint *value) -{ - switch (attribute) { - case EGL_SCREEN_POSITION_MESA: - value[0] = scrn->OriginX; - value[1] = scrn->OriginY; - break; - case EGL_SCREEN_POSITION_GRANULARITY_MESA: - value[0] = scrn->StepX; - value[1] = scrn->StepY; - break; - default: - _eglError(EGL_BAD_ATTRIBUTE, "eglQueryScreenMESA"); - return EGL_FALSE; - } - - return EGL_TRUE; -} - - -#endif /* EGL_MESA_screen_surface */ |