mirror of
https://github.com/Relintai/sdl2_frt.git
synced 2024-12-20 22:16:49 +01:00
839 lines
26 KiB
C
839 lines
26 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#if SDL_VIDEO_DRIVER_PANDORA
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/* SDL internals */
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#include "../SDL_sysvideo.h"
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#include "SDL_version.h"
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#include "SDL_syswm.h"
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#include "SDL_loadso.h"
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#include "SDL_events.h"
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#include "../../events/SDL_mouse_c.h"
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#include "../../events/SDL_keyboard_c.h"
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/* PND declarations */
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#include "SDL_pandora.h"
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#include "SDL_pandora_events.h"
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/* WIZ declarations */
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#include "GLES/gl.h"
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#ifdef WIZ_GLES_LITE
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static NativeWindowType hNativeWnd = 0; /* A handle to the window we will create. */
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#endif
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static int
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PND_available(void)
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{
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return 1;
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}
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static void
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PND_destroy(SDL_VideoDevice * device)
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{
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if (device->driverdata != NULL) {
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SDL_free(device->driverdata);
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device->driverdata = NULL;
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}
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SDL_free(device);
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}
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static SDL_VideoDevice *
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PND_create()
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{
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SDL_VideoDevice *device;
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SDL_VideoData *phdata;
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int status;
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/* Check if pandora could be initialized */
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status = PND_available();
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if (status == 0) {
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/* PND could not be used */
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return NULL;
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}
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/* Initialize SDL_VideoDevice structure */
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device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
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if (device == NULL) {
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SDL_OutOfMemory();
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return NULL;
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}
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/* Initialize internal Pandora specific data */
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phdata = (SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
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if (phdata == NULL) {
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SDL_OutOfMemory();
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SDL_free(device);
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return NULL;
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}
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device->driverdata = phdata;
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phdata->egl_initialized = SDL_TRUE;
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/* Setup amount of available displays */
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device->num_displays = 0;
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/* Set device free function */
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device->free = PND_destroy;
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/* Setup all functions which we can handle */
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device->VideoInit = PND_videoinit;
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device->VideoQuit = PND_videoquit;
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device->GetDisplayModes = PND_getdisplaymodes;
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device->SetDisplayMode = PND_setdisplaymode;
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device->CreateWindow = PND_createwindow;
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device->CreateWindowFrom = PND_createwindowfrom;
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device->SetWindowTitle = PND_setwindowtitle;
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device->SetWindowIcon = PND_setwindowicon;
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device->SetWindowPosition = PND_setwindowposition;
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device->SetWindowSize = PND_setwindowsize;
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device->ShowWindow = PND_showwindow;
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device->HideWindow = PND_hidewindow;
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device->RaiseWindow = PND_raisewindow;
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device->MaximizeWindow = PND_maximizewindow;
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device->MinimizeWindow = PND_minimizewindow;
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device->RestoreWindow = PND_restorewindow;
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device->SetWindowGrab = PND_setwindowgrab;
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device->DestroyWindow = PND_destroywindow;
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#if 0
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device->GetWindowWMInfo = PND_getwindowwminfo;
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#endif
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device->GL_LoadLibrary = PND_gl_loadlibrary;
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device->GL_GetProcAddress = PND_gl_getprocaddres;
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device->GL_UnloadLibrary = PND_gl_unloadlibrary;
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device->GL_CreateContext = PND_gl_createcontext;
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device->GL_MakeCurrent = PND_gl_makecurrent;
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device->GL_SetSwapInterval = PND_gl_setswapinterval;
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device->GL_GetSwapInterval = PND_gl_getswapinterval;
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device->GL_SwapWindow = PND_gl_swapwindow;
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device->GL_DeleteContext = PND_gl_deletecontext;
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device->PumpEvents = PND_PumpEvents;
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/* !!! FIXME: implement SetWindowBordered */
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return device;
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}
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VideoBootStrap PND_bootstrap = {
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#ifdef WIZ_GLES_LITE
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"wiz",
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"SDL Wiz Video Driver",
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#else
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"pandora",
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"SDL Pandora Video Driver",
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#endif
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PND_available,
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PND_create
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};
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/*****************************************************************************/
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/* SDL Video and Display initialization/handling functions */
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/*****************************************************************************/
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int
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PND_videoinit(_THIS)
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{
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SDL_VideoDisplay display;
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SDL_DisplayMode current_mode;
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SDL_zero(current_mode);
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#ifdef WIZ_GLES_LITE
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current_mode.w = 320;
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current_mode.h = 240;
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#else
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current_mode.w = 800;
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current_mode.h = 480;
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#endif
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current_mode.refresh_rate = 60;
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current_mode.format = SDL_PIXELFORMAT_RGB565;
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current_mode.driverdata = NULL;
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SDL_zero(display);
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display.desktop_mode = current_mode;
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display.current_mode = current_mode;
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display.driverdata = NULL;
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SDL_AddVideoDisplay(&display);
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return 1;
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}
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void
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PND_videoquit(_THIS)
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{
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}
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void
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PND_getdisplaymodes(_THIS, SDL_VideoDisplay * display)
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{
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}
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int
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PND_setdisplaymode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode)
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{
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return 0;
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}
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int
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PND_createwindow(_THIS, SDL_Window * window)
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{
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SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata;
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SDL_WindowData *wdata;
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/* Allocate window internal data */
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wdata = (SDL_WindowData *) SDL_calloc(1, sizeof(SDL_WindowData));
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if (wdata == NULL) {
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return SDL_OutOfMemory();
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}
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/* Setup driver data for this window */
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window->driverdata = wdata;
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/* Check if window must support OpenGL ES rendering */
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if ((window->flags & SDL_WINDOW_OPENGL) == SDL_WINDOW_OPENGL) {
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EGLBoolean initstatus;
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/* Mark this window as OpenGL ES compatible */
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wdata->uses_gles = SDL_TRUE;
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/* Create connection to OpenGL ES */
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if (phdata->egl_display == EGL_NO_DISPLAY) {
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phdata->egl_display = eglGetDisplay((NativeDisplayType) 0);
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if (phdata->egl_display == EGL_NO_DISPLAY) {
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return SDL_SetError("PND: Can't get connection to OpenGL ES");
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}
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initstatus = eglInitialize(phdata->egl_display, NULL, NULL);
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if (initstatus != EGL_TRUE) {
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return SDL_SetError("PND: Can't init OpenGL ES library");
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}
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}
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phdata->egl_refcount++;
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}
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/* Window has been successfully created */
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return 0;
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}
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int
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PND_createwindowfrom(_THIS, SDL_Window * window, const void *data)
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{
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return -1;
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}
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void
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PND_setwindowtitle(_THIS, SDL_Window * window)
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{
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}
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void
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PND_setwindowicon(_THIS, SDL_Window * window, SDL_Surface * icon)
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{
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}
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void
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PND_setwindowposition(_THIS, SDL_Window * window)
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{
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}
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void
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PND_setwindowsize(_THIS, SDL_Window * window)
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{
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}
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void
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PND_showwindow(_THIS, SDL_Window * window)
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{
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}
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void
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PND_hidewindow(_THIS, SDL_Window * window)
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{
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}
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void
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PND_raisewindow(_THIS, SDL_Window * window)
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{
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}
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void
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PND_maximizewindow(_THIS, SDL_Window * window)
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{
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}
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void
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PND_minimizewindow(_THIS, SDL_Window * window)
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{
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}
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void
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PND_restorewindow(_THIS, SDL_Window * window)
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{
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}
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void
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PND_setwindowgrab(_THIS, SDL_Window * window, SDL_bool grabbed)
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{
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}
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void
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PND_destroywindow(_THIS, SDL_Window * window)
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{
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SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata;
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eglTerminate(phdata->egl_display);
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}
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/*****************************************************************************/
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/* SDL Window Manager function */
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/*****************************************************************************/
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#if 0
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SDL_bool
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PND_getwindowwminfo(_THIS, SDL_Window * window, struct SDL_SysWMinfo *info)
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{
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if (info->version.major <= SDL_MAJOR_VERSION) {
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return SDL_TRUE;
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} else {
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SDL_SetError("application not compiled with SDL %d.%d",
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SDL_MAJOR_VERSION, SDL_MINOR_VERSION);
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return SDL_FALSE;
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}
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/* Failed to get window manager information */
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return SDL_FALSE;
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}
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#endif
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/*****************************************************************************/
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/* SDL OpenGL/OpenGL ES functions */
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/*****************************************************************************/
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int
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PND_gl_loadlibrary(_THIS, const char *path)
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{
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/* Check if OpenGL ES library is specified for GF driver */
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if (path == NULL) {
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path = SDL_getenv("SDL_OPENGL_LIBRARY");
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if (path == NULL) {
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path = SDL_getenv("SDL_OPENGLES_LIBRARY");
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}
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}
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/* Check if default library loading requested */
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if (path == NULL) {
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/* Already linked with GF library which provides egl* subset of */
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/* functions, use Common profile of OpenGL ES library by default */
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#ifdef WIZ_GLES_LITE
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path = "/lib/libopengles_lite.so";
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#else
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path = "/usr/lib/libGLES_CM.so";
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#endif
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}
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/* Load dynamic library */
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_this->gl_config.dll_handle = SDL_LoadObject(path);
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if (!_this->gl_config.dll_handle) {
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/* Failed to load new GL ES library */
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return SDL_SetError("PND: Failed to locate OpenGL ES library");
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}
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/* Store OpenGL ES library path and name */
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SDL_strlcpy(_this->gl_config.driver_path, path,
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SDL_arraysize(_this->gl_config.driver_path));
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/* New OpenGL ES library is loaded */
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return 0;
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}
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void *
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PND_gl_getprocaddres(_THIS, const char *proc)
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{
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void *function_address;
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/* Try to get function address through the egl interface */
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function_address = eglGetProcAddress(proc);
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if (function_address != NULL) {
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return function_address;
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}
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/* Then try to get function in the OpenGL ES library */
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if (_this->gl_config.dll_handle) {
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function_address =
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SDL_LoadFunction(_this->gl_config.dll_handle, proc);
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if (function_address != NULL) {
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return function_address;
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}
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}
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/* Failed to get GL ES function address pointer */
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SDL_SetError("PND: Cannot locate OpenGL ES function name");
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return NULL;
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}
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void
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PND_gl_unloadlibrary(_THIS)
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{
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SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata;
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if (phdata->egl_initialized == SDL_TRUE) {
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/* Unload OpenGL ES library */
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if (_this->gl_config.dll_handle) {
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SDL_UnloadObject(_this->gl_config.dll_handle);
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_this->gl_config.dll_handle = NULL;
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}
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} else {
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SDL_SetError("PND: GF initialization failed, no OpenGL ES support");
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}
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}
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SDL_GLContext
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PND_gl_createcontext(_THIS, SDL_Window * window)
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{
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SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata;
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SDL_WindowData *wdata = (SDL_WindowData *) window->driverdata;
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EGLBoolean status;
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EGLint configs;
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uint32_t attr_pos;
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EGLint attr_value;
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EGLint cit;
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/* Check if EGL was initialized */
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if (phdata->egl_initialized != SDL_TRUE) {
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SDL_SetError("PND: EGL initialization failed, no OpenGL ES support");
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return NULL;
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}
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/* Prepare attributes list to pass them to OpenGL ES */
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attr_pos = 0;
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wdata->gles_attributes[attr_pos++] = EGL_SURFACE_TYPE;
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wdata->gles_attributes[attr_pos++] = EGL_WINDOW_BIT;
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wdata->gles_attributes[attr_pos++] = EGL_RED_SIZE;
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wdata->gles_attributes[attr_pos++] = _this->gl_config.red_size;
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wdata->gles_attributes[attr_pos++] = EGL_GREEN_SIZE;
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wdata->gles_attributes[attr_pos++] = _this->gl_config.green_size;
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wdata->gles_attributes[attr_pos++] = EGL_BLUE_SIZE;
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wdata->gles_attributes[attr_pos++] = _this->gl_config.blue_size;
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wdata->gles_attributes[attr_pos++] = EGL_ALPHA_SIZE;
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/* Setup alpha size in bits */
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if (_this->gl_config.alpha_size) {
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wdata->gles_attributes[attr_pos++] = _this->gl_config.alpha_size;
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} else {
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wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE;
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}
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/* Setup color buffer size */
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if (_this->gl_config.buffer_size) {
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wdata->gles_attributes[attr_pos++] = EGL_BUFFER_SIZE;
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wdata->gles_attributes[attr_pos++] = _this->gl_config.buffer_size;
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} else {
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wdata->gles_attributes[attr_pos++] = EGL_BUFFER_SIZE;
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wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE;
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}
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/* Setup depth buffer bits */
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wdata->gles_attributes[attr_pos++] = EGL_DEPTH_SIZE;
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wdata->gles_attributes[attr_pos++] = _this->gl_config.depth_size;
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/* Setup stencil bits */
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if (_this->gl_config.stencil_size) {
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wdata->gles_attributes[attr_pos++] = EGL_STENCIL_SIZE;
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wdata->gles_attributes[attr_pos++] = _this->gl_config.buffer_size;
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} else {
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wdata->gles_attributes[attr_pos++] = EGL_STENCIL_SIZE;
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wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE;
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}
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/* Set number of samples in multisampling */
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if (_this->gl_config.multisamplesamples) {
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wdata->gles_attributes[attr_pos++] = EGL_SAMPLES;
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wdata->gles_attributes[attr_pos++] =
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_this->gl_config.multisamplesamples;
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}
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/* Multisample buffers, OpenGL ES 1.0 spec defines 0 or 1 buffer */
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if (_this->gl_config.multisamplebuffers) {
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wdata->gles_attributes[attr_pos++] = EGL_SAMPLE_BUFFERS;
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wdata->gles_attributes[attr_pos++] =
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_this->gl_config.multisamplebuffers;
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}
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/* Finish attributes list */
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wdata->gles_attributes[attr_pos] = EGL_NONE;
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/* Request first suitable framebuffer configuration */
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status = eglChooseConfig(phdata->egl_display, wdata->gles_attributes,
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wdata->gles_configs, 1, &configs);
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if (status != EGL_TRUE) {
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SDL_SetError("PND: Can't find closest configuration for OpenGL ES");
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return NULL;
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}
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/* Check if nothing has been found, try "don't care" settings */
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if (configs == 0) {
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int32_t it;
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int32_t jt;
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GLint depthbits[4] = { 32, 24, 16, EGL_DONT_CARE };
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for (it = 0; it < 4; it++) {
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for (jt = 16; jt >= 0; jt--) {
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/* Don't care about color buffer bits, use what exist */
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/* Replace previous set data with EGL_DONT_CARE */
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attr_pos = 0;
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wdata->gles_attributes[attr_pos++] = EGL_SURFACE_TYPE;
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wdata->gles_attributes[attr_pos++] = EGL_WINDOW_BIT;
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wdata->gles_attributes[attr_pos++] = EGL_RED_SIZE;
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wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE;
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wdata->gles_attributes[attr_pos++] = EGL_GREEN_SIZE;
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wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE;
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wdata->gles_attributes[attr_pos++] = EGL_BLUE_SIZE;
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wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE;
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wdata->gles_attributes[attr_pos++] = EGL_ALPHA_SIZE;
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wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE;
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wdata->gles_attributes[attr_pos++] = EGL_BUFFER_SIZE;
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wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE;
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/* Try to find requested or smallest depth */
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if (_this->gl_config.depth_size) {
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wdata->gles_attributes[attr_pos++] = EGL_DEPTH_SIZE;
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wdata->gles_attributes[attr_pos++] = depthbits[it];
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} else {
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wdata->gles_attributes[attr_pos++] = EGL_DEPTH_SIZE;
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wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE;
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}
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|
|
if (_this->gl_config.stencil_size) {
|
|
wdata->gles_attributes[attr_pos++] = EGL_STENCIL_SIZE;
|
|
wdata->gles_attributes[attr_pos++] = jt;
|
|
} else {
|
|
wdata->gles_attributes[attr_pos++] = EGL_STENCIL_SIZE;
|
|
wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE;
|
|
}
|
|
|
|
wdata->gles_attributes[attr_pos++] = EGL_SAMPLES;
|
|
wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE;
|
|
wdata->gles_attributes[attr_pos++] = EGL_SAMPLE_BUFFERS;
|
|
wdata->gles_attributes[attr_pos++] = EGL_DONT_CARE;
|
|
wdata->gles_attributes[attr_pos] = EGL_NONE;
|
|
|
|
/* Request first suitable framebuffer configuration */
|
|
status =
|
|
eglChooseConfig(phdata->egl_display,
|
|
wdata->gles_attributes,
|
|
wdata->gles_configs, 1, &configs);
|
|
|
|
if (status != EGL_TRUE) {
|
|
SDL_SetError
|
|
("PND: Can't find closest configuration for OpenGL ES");
|
|
return NULL;
|
|
}
|
|
if (configs != 0) {
|
|
break;
|
|
}
|
|
}
|
|
if (configs != 0) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* No available configs */
|
|
if (configs == 0) {
|
|
SDL_SetError("PND: Can't find any configuration for OpenGL ES");
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* Initialize config index */
|
|
wdata->gles_config = 0;
|
|
|
|
/* Now check each configuration to find out the best */
|
|
for (cit = 0; cit < configs; cit++) {
|
|
uint32_t stencil_found;
|
|
uint32_t depth_found;
|
|
|
|
stencil_found = 0;
|
|
depth_found = 0;
|
|
|
|
if (_this->gl_config.stencil_size) {
|
|
status =
|
|
eglGetConfigAttrib(phdata->egl_display,
|
|
wdata->gles_configs[cit], EGL_STENCIL_SIZE,
|
|
&attr_value);
|
|
if (status == EGL_TRUE) {
|
|
if (attr_value != 0) {
|
|
stencil_found = 1;
|
|
}
|
|
}
|
|
} else {
|
|
stencil_found = 1;
|
|
}
|
|
|
|
if (_this->gl_config.depth_size) {
|
|
status =
|
|
eglGetConfigAttrib(phdata->egl_display,
|
|
wdata->gles_configs[cit], EGL_DEPTH_SIZE,
|
|
&attr_value);
|
|
if (status == EGL_TRUE) {
|
|
if (attr_value != 0) {
|
|
depth_found = 1;
|
|
}
|
|
}
|
|
} else {
|
|
depth_found = 1;
|
|
}
|
|
|
|
/* Exit from loop if found appropriate configuration */
|
|
if ((depth_found != 0) && (stencil_found != 0)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* If best could not be found, use first */
|
|
if (cit == configs) {
|
|
cit = 0;
|
|
}
|
|
wdata->gles_config = cit;
|
|
|
|
/* Create OpenGL ES context */
|
|
wdata->gles_context =
|
|
eglCreateContext(phdata->egl_display,
|
|
wdata->gles_configs[wdata->gles_config], NULL, NULL);
|
|
if (wdata->gles_context == EGL_NO_CONTEXT) {
|
|
SDL_SetError("PND: OpenGL ES context creation has been failed");
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef WIZ_GLES_LITE
|
|
if( !hNativeWnd ) {
|
|
hNativeWnd = (NativeWindowType)malloc(16*1024);
|
|
|
|
if(!hNativeWnd)
|
|
printf( "Error: Wiz framebuffer allocatation failed\n" );
|
|
else
|
|
printf( "SDL: Wiz framebuffer allocated: %X\n", hNativeWnd );
|
|
}
|
|
else {
|
|
printf( "SDL: Wiz framebuffer already allocated: %X\n", hNativeWnd );
|
|
}
|
|
|
|
wdata->gles_surface =
|
|
eglCreateWindowSurface(phdata->egl_display,
|
|
wdata->gles_configs[wdata->gles_config],
|
|
hNativeWnd, NULL );
|
|
#else
|
|
wdata->gles_surface =
|
|
eglCreateWindowSurface(phdata->egl_display,
|
|
wdata->gles_configs[wdata->gles_config],
|
|
(NativeWindowType) 0, NULL);
|
|
#endif
|
|
|
|
|
|
if (wdata->gles_surface == 0) {
|
|
SDL_SetError("Error : eglCreateWindowSurface failed;");
|
|
return NULL;
|
|
}
|
|
|
|
/* Make just created context current */
|
|
status =
|
|
eglMakeCurrent(phdata->egl_display, wdata->gles_surface,
|
|
wdata->gles_surface, wdata->gles_context);
|
|
if (status != EGL_TRUE) {
|
|
/* Destroy OpenGL ES surface */
|
|
eglDestroySurface(phdata->egl_display, wdata->gles_surface);
|
|
eglDestroyContext(phdata->egl_display, wdata->gles_context);
|
|
wdata->gles_context = EGL_NO_CONTEXT;
|
|
SDL_SetError("PND: Can't set OpenGL ES context on creation");
|
|
return NULL;
|
|
}
|
|
|
|
_this->gl_config.accelerated = 1;
|
|
|
|
/* Always clear stereo enable, since OpenGL ES do not supports stereo */
|
|
_this->gl_config.stereo = 0;
|
|
|
|
/* Get back samples and samplebuffers configurations. Rest framebuffer */
|
|
/* parameters could be obtained through the OpenGL ES API */
|
|
status =
|
|
eglGetConfigAttrib(phdata->egl_display,
|
|
wdata->gles_configs[wdata->gles_config],
|
|
EGL_SAMPLES, &attr_value);
|
|
if (status == EGL_TRUE) {
|
|
_this->gl_config.multisamplesamples = attr_value;
|
|
}
|
|
status =
|
|
eglGetConfigAttrib(phdata->egl_display,
|
|
wdata->gles_configs[wdata->gles_config],
|
|
EGL_SAMPLE_BUFFERS, &attr_value);
|
|
if (status == EGL_TRUE) {
|
|
_this->gl_config.multisamplebuffers = attr_value;
|
|
}
|
|
|
|
/* Get back stencil and depth buffer sizes */
|
|
status =
|
|
eglGetConfigAttrib(phdata->egl_display,
|
|
wdata->gles_configs[wdata->gles_config],
|
|
EGL_DEPTH_SIZE, &attr_value);
|
|
if (status == EGL_TRUE) {
|
|
_this->gl_config.depth_size = attr_value;
|
|
}
|
|
status =
|
|
eglGetConfigAttrib(phdata->egl_display,
|
|
wdata->gles_configs[wdata->gles_config],
|
|
EGL_STENCIL_SIZE, &attr_value);
|
|
if (status == EGL_TRUE) {
|
|
_this->gl_config.stencil_size = attr_value;
|
|
}
|
|
|
|
/* Under PND OpenGL ES output can't be double buffered */
|
|
_this->gl_config.double_buffer = 0;
|
|
|
|
/* GL ES context was successfully created */
|
|
return wdata->gles_context;
|
|
}
|
|
|
|
int
|
|
PND_gl_makecurrent(_THIS, SDL_Window * window, SDL_GLContext context)
|
|
{
|
|
SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata;
|
|
SDL_WindowData *wdata;
|
|
EGLBoolean status;
|
|
|
|
if (phdata->egl_initialized != SDL_TRUE) {
|
|
return SDL_SetError("PND: GF initialization failed, no OpenGL ES support");
|
|
}
|
|
|
|
if ((window == NULL) && (context == NULL)) {
|
|
status =
|
|
eglMakeCurrent(phdata->egl_display, EGL_NO_SURFACE,
|
|
EGL_NO_SURFACE, EGL_NO_CONTEXT);
|
|
if (status != EGL_TRUE) {
|
|
/* Failed to set current GL ES context */
|
|
return SDL_SetError("PND: Can't set OpenGL ES context");
|
|
}
|
|
} else {
|
|
wdata = (SDL_WindowData *) window->driverdata;
|
|
if (wdata->gles_surface == EGL_NO_SURFACE) {
|
|
return SDL_SetError
|
|
("PND: OpenGL ES surface is not initialized for this window");
|
|
}
|
|
if (wdata->gles_context == EGL_NO_CONTEXT) {
|
|
return SDL_SetError
|
|
("PND: OpenGL ES context is not initialized for this window");
|
|
}
|
|
if (wdata->gles_context != context) {
|
|
return SDL_SetError
|
|
("PND: OpenGL ES context is not belong to this window");
|
|
}
|
|
status =
|
|
eglMakeCurrent(phdata->egl_display, wdata->gles_surface,
|
|
wdata->gles_surface, wdata->gles_context);
|
|
if (status != EGL_TRUE) {
|
|
/* Failed to set current GL ES context */
|
|
return SDL_SetError("PND: Can't set OpenGL ES context");
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
PND_gl_setswapinterval(_THIS, int interval)
|
|
{
|
|
SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata;
|
|
EGLBoolean status;
|
|
|
|
if (phdata->egl_initialized != SDL_TRUE) {
|
|
return SDL_SetError("PND: EGL initialization failed, no OpenGL ES support");
|
|
}
|
|
|
|
/* Check if OpenGL ES connection has been initialized */
|
|
if (phdata->egl_display != EGL_NO_DISPLAY) {
|
|
/* Set swap OpenGL ES interval */
|
|
status = eglSwapInterval(phdata->egl_display, interval);
|
|
if (status == EGL_TRUE) {
|
|
/* Return success to upper level */
|
|
phdata->swapinterval = interval;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* Failed to set swap interval */
|
|
return SDL_SetError("PND: Cannot set swap interval");
|
|
}
|
|
|
|
int
|
|
PND_gl_getswapinterval(_THIS)
|
|
{
|
|
return ((SDL_VideoData *) _this->driverdata)->swapinterval;
|
|
}
|
|
|
|
int
|
|
PND_gl_swapwindow(_THIS, SDL_Window * window)
|
|
{
|
|
SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata;
|
|
SDL_WindowData *wdata = (SDL_WindowData *) window->driverdata;
|
|
|
|
if (phdata->egl_initialized != SDL_TRUE) {
|
|
return SDL_SetError("PND: GLES initialization failed, no OpenGL ES support");
|
|
}
|
|
|
|
/* Many applications do not uses glFinish(), so we call it for them */
|
|
glFinish();
|
|
|
|
/* Wait until OpenGL ES rendering is completed */
|
|
eglWaitGL();
|
|
|
|
eglSwapBuffers(phdata->egl_display, wdata->gles_surface);
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
PND_gl_deletecontext(_THIS, SDL_GLContext context)
|
|
{
|
|
SDL_VideoData *phdata = (SDL_VideoData *) _this->driverdata;
|
|
EGLBoolean status;
|
|
|
|
if (phdata->egl_initialized != SDL_TRUE) {
|
|
SDL_SetError("PND: GLES initialization failed, no OpenGL ES support");
|
|
return;
|
|
}
|
|
|
|
/* Check if OpenGL ES connection has been initialized */
|
|
if (phdata->egl_display != EGL_NO_DISPLAY) {
|
|
if (context != EGL_NO_CONTEXT) {
|
|
status = eglDestroyContext(phdata->egl_display, context);
|
|
if (status != EGL_TRUE) {
|
|
/* Error during OpenGL ES context destroying */
|
|
SDL_SetError("PND: OpenGL ES context destroy error");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef WIZ_GLES_LITE
|
|
if( hNativeWnd != 0 )
|
|
{
|
|
free(hNativeWnd);
|
|
hNativeWnd = 0;
|
|
printf( "SDL: Wiz framebuffer released\n" );
|
|
}
|
|
#endif
|
|
|
|
return;
|
|
}
|
|
|
|
#endif /* SDL_VIDEO_DRIVER_PANDORA */
|
|
|
|
/* vi: set ts=4 sw=4 expandtab: */
|