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@ r28334:e41ee4d6fc7c
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Location: cpp/openttd-patchpack/source/src/video/win32_v.cpp
r28334:e41ee4d6fc7c
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Fix 9ce1626b: Some blitters have `bp->remap` aliased to `remap` for performance. (#11626)
While this probably doesn't make a huge difference for the custom transparent remap code path, the alias is there so use it.
While this probably doesn't make a huge difference for the custom transparent remap code path, the alias is there so use it.
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1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 | /*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file win32_v.cpp Implementation of the Windows (GDI) video driver. */
#include "../stdafx.h"
#include "../openttd.h"
#include "../error_func.h"
#include "../gfx_func.h"
#include "../os/windows/win32.h"
#include "../blitter/factory.hpp"
#include "../core/geometry_func.hpp"
#include "../core/math_func.hpp"
#include "../core/random_func.hpp"
#include "../texteff.hpp"
#include "../thread.h"
#include "../progress.h"
#include "../window_gui.h"
#include "../window_func.h"
#include "../framerate_type.h"
#include "win32_v.h"
#include <windows.h>
#include <imm.h>
#include <versionhelpers.h>
#include "../safeguards.h"
/* Missing define in MinGW headers. */
#ifndef MAPVK_VK_TO_CHAR
#define MAPVK_VK_TO_CHAR (2)
#endif
#ifndef PM_QS_INPUT
#define PM_QS_INPUT 0x20000
#endif
#ifndef WM_DPICHANGED
#define WM_DPICHANGED 0x02E0
#endif
bool _window_maximize;
static Dimension _bck_resolution;
DWORD _imm_props;
static Palette _local_palette; ///< Current palette to use for drawing.
bool VideoDriver_Win32Base::ClaimMousePointer()
{
MyShowCursor(false, true);
return true;
}
struct Win32VkMapping {
byte vk_from;
byte vk_count;
byte map_to;
};
#define AS(x, z) {x, 0, z}
#define AM(x, y, z, w) {x, y - x, z}
static const Win32VkMapping _vk_mapping[] = {
/* Pageup stuff + up/down */
AM(VK_PRIOR, VK_DOWN, WKC_PAGEUP, WKC_DOWN),
/* Map letters & digits */
AM('A', 'Z', 'A', 'Z'),
AM('0', '9', '0', '9'),
AS(VK_ESCAPE, WKC_ESC),
AS(VK_PAUSE, WKC_PAUSE),
AS(VK_BACK, WKC_BACKSPACE),
AM(VK_INSERT, VK_DELETE, WKC_INSERT, WKC_DELETE),
AS(VK_SPACE, WKC_SPACE),
AS(VK_RETURN, WKC_RETURN),
AS(VK_TAB, WKC_TAB),
/* Function keys */
AM(VK_F1, VK_F12, WKC_F1, WKC_F12),
/* Numeric part */
AM(VK_NUMPAD0, VK_NUMPAD9, '0', '9'),
AS(VK_DIVIDE, WKC_NUM_DIV),
AS(VK_MULTIPLY, WKC_NUM_MUL),
AS(VK_SUBTRACT, WKC_NUM_MINUS),
AS(VK_ADD, WKC_NUM_PLUS),
AS(VK_DECIMAL, WKC_NUM_DECIMAL),
/* Other non-letter keys */
AS(0xBF, WKC_SLASH),
AS(0xBA, WKC_SEMICOLON),
AS(0xBB, WKC_EQUALS),
AS(0xDB, WKC_L_BRACKET),
AS(0xDC, WKC_BACKSLASH),
AS(0xDD, WKC_R_BRACKET),
AS(0xDE, WKC_SINGLEQUOTE),
AS(0xBC, WKC_COMMA),
AS(0xBD, WKC_MINUS),
AS(0xBE, WKC_PERIOD)
};
static uint MapWindowsKey(uint sym)
{
const Win32VkMapping *map;
uint key = 0;
for (map = _vk_mapping; map != endof(_vk_mapping); ++map) {
if ((uint)(sym - map->vk_from) <= map->vk_count) {
key = sym - map->vk_from + map->map_to;
break;
}
}
if (GetAsyncKeyState(VK_SHIFT) < 0) key |= WKC_SHIFT;
if (GetAsyncKeyState(VK_CONTROL) < 0) key |= WKC_CTRL;
if (GetAsyncKeyState(VK_MENU) < 0) key |= WKC_ALT;
return key;
}
/** Colour depth to use for fullscreen display modes. */
uint8_t VideoDriver_Win32Base::GetFullscreenBpp()
{
/* Check modes for the relevant fullscreen bpp */
return _support8bpp != S8BPP_HARDWARE ? 32 : BlitterFactory::GetCurrentBlitter()->GetScreenDepth();
}
/**
* Instantiate a new window.
* @param full_screen Whether to make a full screen window or not.
* @param resize Whether to change window size.
* @return True if the window could be created.
*/
bool VideoDriver_Win32Base::MakeWindow(bool full_screen, bool resize)
{
/* full_screen is whether the new window should be fullscreen,
* _wnd.fullscreen is whether the current window is. */
_fullscreen = full_screen;
/* recreate window? */
if ((full_screen != this->fullscreen) && this->main_wnd) {
DestroyWindow(this->main_wnd);
this->main_wnd = 0;
}
if (full_screen) {
DEVMODE settings;
memset(&settings, 0, sizeof(settings));
settings.dmSize = sizeof(settings);
settings.dmFields =
DM_BITSPERPEL |
DM_PELSWIDTH |
DM_PELSHEIGHT;
settings.dmBitsPerPel = this->GetFullscreenBpp();
settings.dmPelsWidth = this->width_org;
settings.dmPelsHeight = this->height_org;
/* Check for 8 bpp support. */
if (settings.dmBitsPerPel == 8 && ChangeDisplaySettings(&settings, CDS_FULLSCREEN | CDS_TEST) != DISP_CHANGE_SUCCESSFUL) {
settings.dmBitsPerPel = 32;
}
/* Test fullscreen with current resolution, if it fails use desktop resolution. */
if (ChangeDisplaySettings(&settings, CDS_FULLSCREEN | CDS_TEST) != DISP_CHANGE_SUCCESSFUL) {
RECT r;
GetWindowRect(GetDesktopWindow(), &r);
/* Guard against recursion. If we already failed here once, just fall through to
* the next ChangeDisplaySettings call which will fail and error out appropriately. */
if ((int)settings.dmPelsWidth != r.right - r.left || (int)settings.dmPelsHeight != r.bottom - r.top) {
return this->ChangeResolution(r.right - r.left, r.bottom - r.top);
}
}
if (ChangeDisplaySettings(&settings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL) {
this->MakeWindow(false, resize); // don't care about the result
return false; // the request failed
}
} else if (this->fullscreen) {
/* restore display? */
ChangeDisplaySettings(nullptr, 0);
/* restore the resolution */
this->width = _bck_resolution.width;
this->height = _bck_resolution.height;
}
{
RECT r;
DWORD style, showstyle;
int w, h;
showstyle = SW_SHOWNORMAL;
this->fullscreen = full_screen;
if (this->fullscreen) {
style = WS_POPUP;
SetRect(&r, 0, 0, this->width_org, this->height_org);
} else {
style = WS_OVERLAPPEDWINDOW;
/* On window creation, check if we were in maximize mode before */
if (_window_maximize) showstyle = SW_SHOWMAXIMIZED;
SetRect(&r, 0, 0, this->width, this->height);
}
AdjustWindowRect(&r, style, FALSE);
w = r.right - r.left;
h = r.bottom - r.top;
if (this->main_wnd != nullptr) {
if (!_window_maximize && resize) SetWindowPos(this->main_wnd, 0, 0, 0, w, h, SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOZORDER | SWP_NOMOVE);
} else {
int x = 0;
int y = 0;
/* For windowed mode, center on the workspace of the primary display. */
if (!this->fullscreen) {
MONITORINFO mi;
mi.cbSize = sizeof(mi);
GetMonitorInfo(MonitorFromWindow(0, MONITOR_DEFAULTTOPRIMARY), &mi);
x = (mi.rcWork.right - mi.rcWork.left - w) / 2;
y = (mi.rcWork.bottom - mi.rcWork.top - h) / 2;
}
std::string caption = VideoDriver::GetCaption();
this->main_wnd = CreateWindow(L"OTTD", OTTD2FS(caption).c_str(), style, x, y, w, h, 0, 0, GetModuleHandle(nullptr), this);
if (this->main_wnd == nullptr) UserError("CreateWindow failed");
ShowWindow(this->main_wnd, showstyle);
}
}
BlitterFactory::GetCurrentBlitter()->PostResize();
GameSizeChanged();
return true;
}
/** Forward key presses to the window system. */
static LRESULT HandleCharMsg(uint keycode, char32_t charcode)
{
static char32_t prev_char = 0;
/* Did we get a lead surrogate? If yes, store and exit. */
if (Utf16IsLeadSurrogate(charcode)) {
if (prev_char != 0) Debug(driver, 1, "Got two UTF-16 lead surrogates, dropping the first one");
prev_char = charcode;
return 0;
}
/* Stored lead surrogate and incoming trail surrogate? Combine and forward to input handling. */
if (prev_char != 0) {
if (Utf16IsTrailSurrogate(charcode)) {
charcode = Utf16DecodeSurrogate(prev_char, charcode);
} else {
Debug(driver, 1, "Got an UTF-16 lead surrogate without a trail surrogate, dropping the lead surrogate");
}
}
prev_char = 0;
HandleKeypress(keycode, charcode);
return 0;
}
/** Should we draw the composition string ourself, i.e is this a normal IME? */
static bool DrawIMECompositionString()
{
return (_imm_props & IME_PROP_AT_CARET) && !(_imm_props & IME_PROP_SPECIAL_UI);
}
/** Set position of the composition window to the caret position. */
static void SetCompositionPos(HWND hwnd)
{
HIMC hIMC = ImmGetContext(hwnd);
if (hIMC != NULL) {
COMPOSITIONFORM cf;
cf.dwStyle = CFS_POINT;
if (EditBoxInGlobalFocus()) {
/* Get caret position. */
Point pt = _focused_window->GetCaretPosition();
cf.ptCurrentPos.x = _focused_window->left + pt.x;
cf.ptCurrentPos.y = _focused_window->top + pt.y;
} else {
cf.ptCurrentPos.x = 0;
cf.ptCurrentPos.y = 0;
}
ImmSetCompositionWindow(hIMC, &cf);
}
ImmReleaseContext(hwnd, hIMC);
}
/** Set the position of the candidate window. */
static void SetCandidatePos(HWND hwnd)
{
HIMC hIMC = ImmGetContext(hwnd);
if (hIMC != NULL) {
CANDIDATEFORM cf;
cf.dwIndex = 0;
cf.dwStyle = CFS_EXCLUDE;
if (EditBoxInGlobalFocus()) {
Point pt = _focused_window->GetCaretPosition();
cf.ptCurrentPos.x = _focused_window->left + pt.x;
cf.ptCurrentPos.y = _focused_window->top + pt.y;
if (_focused_window->window_class == WC_CONSOLE) {
cf.rcArea.left = _focused_window->left;
cf.rcArea.top = _focused_window->top;
cf.rcArea.right = _focused_window->left + _focused_window->width;
cf.rcArea.bottom = _focused_window->top + _focused_window->height;
} else {
cf.rcArea.left = _focused_window->left + _focused_window->nested_focus->pos_x;
cf.rcArea.top = _focused_window->top + _focused_window->nested_focus->pos_y;
cf.rcArea.right = cf.rcArea.left + _focused_window->nested_focus->current_x;
cf.rcArea.bottom = cf.rcArea.top + _focused_window->nested_focus->current_y;
}
} else {
cf.ptCurrentPos.x = 0;
cf.ptCurrentPos.y = 0;
SetRectEmpty(&cf.rcArea);
}
ImmSetCandidateWindow(hIMC, &cf);
}
ImmReleaseContext(hwnd, hIMC);
}
/** Handle WM_IME_COMPOSITION messages. */
static LRESULT HandleIMEComposition(HWND hwnd, WPARAM wParam, LPARAM lParam)
{
HIMC hIMC = ImmGetContext(hwnd);
if (hIMC != NULL) {
if (lParam & GCS_RESULTSTR) {
/* Read result string from the IME. */
LONG len = ImmGetCompositionString(hIMC, GCS_RESULTSTR, nullptr, 0); // Length is always in bytes, even in UNICODE build.
std::wstring str(len + 1, L'\0');
len = ImmGetCompositionString(hIMC, GCS_RESULTSTR, str.data(), len);
str[len / sizeof(wchar_t)] = L'\0';
/* Transmit text to windowing system. */
if (len > 0) {
HandleTextInput(nullptr, true); // Clear marked string.
HandleTextInput(FS2OTTD(str).c_str());
}
SetCompositionPos(hwnd);
/* Don't pass the result string on to the default window proc. */
lParam &= ~(GCS_RESULTSTR | GCS_RESULTCLAUSE | GCS_RESULTREADCLAUSE | GCS_RESULTREADSTR);
}
if ((lParam & GCS_COMPSTR) && DrawIMECompositionString()) {
/* Read composition string from the IME. */
LONG len = ImmGetCompositionString(hIMC, GCS_COMPSTR, nullptr, 0); // Length is always in bytes, even in UNICODE build.
std::wstring str(len + 1, L'\0');
len = ImmGetCompositionString(hIMC, GCS_COMPSTR, str.data(), len);
str[len / sizeof(wchar_t)] = L'\0';
if (len > 0) {
static char utf8_buf[1024];
convert_from_fs(str.c_str(), utf8_buf, lengthof(utf8_buf));
/* Convert caret position from bytes in the input string to a position in the UTF-8 encoded string. */
LONG caret_bytes = ImmGetCompositionString(hIMC, GCS_CURSORPOS, nullptr, 0);
const char *caret = utf8_buf;
for (const wchar_t *c = str.c_str(); *c != '\0' && *caret != '\0' && caret_bytes > 0; c++, caret_bytes--) {
/* Skip DBCS lead bytes or leading surrogates. */
if (Utf16IsLeadSurrogate(*c)) {
c++;
caret_bytes--;
}
Utf8Consume(&caret);
}
HandleTextInput(utf8_buf, true, caret);
} else {
HandleTextInput(nullptr, true);
}
lParam &= ~(GCS_COMPSTR | GCS_COMPATTR | GCS_COMPCLAUSE | GCS_CURSORPOS | GCS_DELTASTART);
}
}
ImmReleaseContext(hwnd, hIMC);
return lParam != 0 ? DefWindowProc(hwnd, WM_IME_COMPOSITION, wParam, lParam) : 0;
}
/** Clear the current composition string. */
static void CancelIMEComposition(HWND hwnd)
{
HIMC hIMC = ImmGetContext(hwnd);
if (hIMC != NULL) ImmNotifyIME(hIMC, NI_COMPOSITIONSTR, CPS_CANCEL, 0);
ImmReleaseContext(hwnd, hIMC);
/* Clear any marked string from the current edit box. */
HandleTextInput(nullptr, true);
}
LRESULT CALLBACK WndProcGdi(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
static uint32_t keycode = 0;
static bool console = false;
VideoDriver_Win32Base *video_driver = (VideoDriver_Win32Base *)GetWindowLongPtr(hwnd, GWLP_USERDATA);
switch (msg) {
case WM_CREATE:
SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)((LPCREATESTRUCT)lParam)->lpCreateParams);
_cursor.in_window = false; // Win32 has mouse tracking.
SetCompositionPos(hwnd);
_imm_props = ImmGetProperty(GetKeyboardLayout(0), IGP_PROPERTY);
break;
case WM_PAINT: {
RECT r;
GetUpdateRect(hwnd, &r, FALSE);
video_driver->MakeDirty(r.left, r.top, r.right - r.left, r.bottom - r.top);
ValidateRect(hwnd, nullptr);
return 0;
}
case WM_PALETTECHANGED:
if ((HWND)wParam == hwnd) return 0;
FALLTHROUGH;
case WM_QUERYNEWPALETTE:
video_driver->PaletteChanged(hwnd);
return 0;
case WM_CLOSE:
HandleExitGameRequest();
return 0;
case WM_DESTROY:
if (_window_maximize) _cur_resolution = _bck_resolution;
return 0;
case WM_LBUTTONDOWN:
SetCapture(hwnd);
_left_button_down = true;
HandleMouseEvents();
return 0;
case WM_LBUTTONUP:
ReleaseCapture();
_left_button_down = false;
_left_button_clicked = false;
HandleMouseEvents();
return 0;
case WM_RBUTTONDOWN:
SetCapture(hwnd);
_right_button_down = true;
_right_button_clicked = true;
HandleMouseEvents();
return 0;
case WM_RBUTTONUP:
ReleaseCapture();
_right_button_down = false;
HandleMouseEvents();
return 0;
case WM_MOUSELEAVE:
UndrawMouseCursor();
_cursor.in_window = false;
if (!_left_button_down && !_right_button_down) MyShowCursor(true);
return 0;
case WM_MOUSEMOVE: {
int x = (int16_t)LOWORD(lParam);
int y = (int16_t)HIWORD(lParam);
/* If the mouse was not in the window and it has moved it means it has
* come into the window, so start drawing the mouse. Also start
* tracking the mouse for exiting the window */
if (!_cursor.in_window) {
_cursor.in_window = true;
TRACKMOUSEEVENT tme;
tme.cbSize = sizeof(tme);
tme.dwFlags = TME_LEAVE;
tme.hwndTrack = hwnd;
TrackMouseEvent(&tme);
}
if (_cursor.fix_at) {
/* Get all queued mouse events now in case we have to warp the cursor. In the
* end, we only care about the current mouse position and not bygone events. */
MSG m;
while (PeekMessage(&m, hwnd, WM_MOUSEMOVE, WM_MOUSEMOVE, PM_REMOVE | PM_NOYIELD | PM_QS_INPUT)) {
x = (int16_t)LOWORD(m.lParam);
y = (int16_t)HIWORD(m.lParam);
}
}
if (_cursor.UpdateCursorPosition(x, y)) {
POINT pt;
pt.x = _cursor.pos.x;
pt.y = _cursor.pos.y;
ClientToScreen(hwnd, &pt);
SetCursorPos(pt.x, pt.y);
}
MyShowCursor(false);
HandleMouseEvents();
return 0;
}
case WM_INPUTLANGCHANGE:
_imm_props = ImmGetProperty(GetKeyboardLayout(0), IGP_PROPERTY);
break;
case WM_IME_SETCONTEXT:
/* Don't show the composition window if we draw the string ourself. */
if (DrawIMECompositionString()) lParam &= ~ISC_SHOWUICOMPOSITIONWINDOW;
break;
case WM_IME_STARTCOMPOSITION:
SetCompositionPos(hwnd);
if (DrawIMECompositionString()) return 0;
break;
case WM_IME_COMPOSITION:
return HandleIMEComposition(hwnd, wParam, lParam);
case WM_IME_ENDCOMPOSITION:
/* Clear any pending composition string. */
HandleTextInput(nullptr, true);
if (DrawIMECompositionString()) return 0;
break;
case WM_IME_NOTIFY:
if (wParam == IMN_OPENCANDIDATE) SetCandidatePos(hwnd);
break;
case WM_DEADCHAR:
console = GB(lParam, 16, 8) == 41;
return 0;
case WM_CHAR: {
uint scancode = GB(lParam, 16, 8);
uint charcode = wParam;
/* If the console key is a dead-key, we need to press it twice to get a WM_CHAR message.
* But we then get two WM_CHAR messages, so ignore the first one */
if (console && scancode == 41) {
console = false;
return 0;
}
/* IMEs and other input methods sometimes send a WM_CHAR without a WM_KEYDOWN,
* clear the keycode so a previous WM_KEYDOWN doesn't become 'stuck'. */
uint cur_keycode = keycode;
keycode = 0;
return HandleCharMsg(cur_keycode, charcode);
}
case WM_KEYDOWN: {
/* No matter the keyboard layout, we will map the '~' to the console. */
uint scancode = GB(lParam, 16, 8);
keycode = scancode == 41 ? (uint)WKC_BACKQUOTE : MapWindowsKey(wParam);
uint charcode = MapVirtualKey(wParam, MAPVK_VK_TO_CHAR);
/* No character translation? */
if (charcode == 0) {
HandleKeypress(keycode, 0);
return 0;
}
/* If an edit box is in focus, wait for the corresponding WM_CHAR message. */
if (!EditBoxInGlobalFocus()) {
/* Is the console key a dead key? If yes, ignore the first key down event. */
if (HasBit(charcode, 31) && !console) {
if (scancode == 41) {
console = true;
return 0;
}
}
console = false;
/* IMEs and other input methods sometimes send a WM_CHAR without a WM_KEYDOWN,
* clear the keycode so a previous WM_KEYDOWN doesn't become 'stuck'. */
uint cur_keycode = keycode;
keycode = 0;
return HandleCharMsg(cur_keycode, LOWORD(charcode));
}
return 0;
}
case WM_SYSKEYDOWN: // user presses F10 or Alt, both activating the title-menu
switch (wParam) {
case VK_RETURN:
case 'F': // Full Screen on ALT + ENTER/F
ToggleFullScreen(!video_driver->fullscreen);
return 0;
case VK_MENU: // Just ALT
return 0; // do nothing
case VK_F10: // F10, ignore activation of menu
HandleKeypress(MapWindowsKey(wParam), 0);
return 0;
default: // ALT in combination with something else
HandleKeypress(MapWindowsKey(wParam), 0);
break;
}
break;
case WM_SIZE:
if (wParam != SIZE_MINIMIZED) {
/* Set maximized flag when we maximize (obviously), but also when we
* switched to fullscreen from a maximized state */
_window_maximize = (wParam == SIZE_MAXIMIZED || (_window_maximize && _fullscreen));
if (_window_maximize || _fullscreen) _bck_resolution = _cur_resolution;
video_driver->ClientSizeChanged(LOWORD(lParam), HIWORD(lParam));
}
return 0;
case WM_SIZING: {
RECT *r = (RECT*)lParam;
RECT r2;
int w, h;
SetRect(&r2, 0, 0, 0, 0);
AdjustWindowRect(&r2, GetWindowLong(hwnd, GWL_STYLE), FALSE);
w = r->right - r->left - (r2.right - r2.left);
h = r->bottom - r->top - (r2.bottom - r2.top);
w = std::max(w, 64);
h = std::max(h, 64);
SetRect(&r2, 0, 0, w, h);
AdjustWindowRect(&r2, GetWindowLong(hwnd, GWL_STYLE), FALSE);
w = r2.right - r2.left;
h = r2.bottom - r2.top;
switch (wParam) {
case WMSZ_BOTTOM:
r->bottom = r->top + h;
break;
case WMSZ_BOTTOMLEFT:
r->bottom = r->top + h;
r->left = r->right - w;
break;
case WMSZ_BOTTOMRIGHT:
r->bottom = r->top + h;
r->right = r->left + w;
break;
case WMSZ_LEFT:
r->left = r->right - w;
break;
case WMSZ_RIGHT:
r->right = r->left + w;
break;
case WMSZ_TOP:
r->top = r->bottom - h;
break;
case WMSZ_TOPLEFT:
r->top = r->bottom - h;
r->left = r->right - w;
break;
case WMSZ_TOPRIGHT:
r->top = r->bottom - h;
r->right = r->left + w;
break;
}
return TRUE;
}
case WM_DPICHANGED: {
auto did_adjust = AdjustGUIZoom(true);
/* Resize the window to match the new DPI setting. */
RECT *prcNewWindow = (RECT *)lParam;
SetWindowPos(hwnd,
NULL,
prcNewWindow->left,
prcNewWindow->top,
prcNewWindow->right - prcNewWindow->left,
prcNewWindow->bottom - prcNewWindow->top,
SWP_NOZORDER | SWP_NOACTIVATE);
if (did_adjust) ReInitAllWindows(true);
return 0;
}
/* needed for wheel */
#if !defined(WM_MOUSEWHEEL)
# define WM_MOUSEWHEEL 0x020A
#endif /* WM_MOUSEWHEEL */
#if !defined(GET_WHEEL_DELTA_WPARAM)
# define GET_WHEEL_DELTA_WPARAM(wparam) ((short)HIWORD(wparam))
#endif /* GET_WHEEL_DELTA_WPARAM */
case WM_MOUSEWHEEL: {
int delta = GET_WHEEL_DELTA_WPARAM(wParam);
if (delta < 0) {
_cursor.wheel++;
} else if (delta > 0) {
_cursor.wheel--;
}
HandleMouseEvents();
return 0;
}
case WM_SETFOCUS:
video_driver->has_focus = true;
SetCompositionPos(hwnd);
break;
case WM_KILLFOCUS:
video_driver->has_focus = false;
break;
case WM_ACTIVATE: {
/* Don't do anything if we are closing openttd */
if (_exit_game) break;
bool active = (LOWORD(wParam) != WA_INACTIVE);
bool minimized = (HIWORD(wParam) != 0);
if (video_driver->fullscreen) {
if (active && minimized) {
/* Restore the game window */
Dimension d = _bck_resolution; // Save current non-fullscreen window size as it will be overwritten by ShowWindow.
ShowWindow(hwnd, SW_RESTORE);
_bck_resolution = d;
video_driver->MakeWindow(true);
} else if (!active && !minimized) {
/* Minimise the window and restore desktop */
ShowWindow(hwnd, SW_MINIMIZE);
ChangeDisplaySettings(nullptr, 0);
}
}
break;
}
}
return DefWindowProc(hwnd, msg, wParam, lParam);
}
static void RegisterWndClass()
{
static bool registered = false;
if (registered) return;
HINSTANCE hinst = GetModuleHandle(nullptr);
WNDCLASS wnd = {
CS_OWNDC,
WndProcGdi,
0,
0,
hinst,
LoadIcon(hinst, MAKEINTRESOURCE(100)),
LoadCursor(nullptr, IDC_ARROW),
0,
0,
L"OTTD"
};
registered = true;
if (!RegisterClass(&wnd)) UserError("RegisterClass failed");
}
static const Dimension default_resolutions[] = {
{ 640, 480 },
{ 800, 600 },
{ 1024, 768 },
{ 1152, 864 },
{ 1280, 800 },
{ 1280, 960 },
{ 1280, 1024 },
{ 1400, 1050 },
{ 1600, 1200 },
{ 1680, 1050 },
{ 1920, 1200 }
};
static void FindResolutions(uint8_t bpp)
{
_resolutions.clear();
DEVMODE dm;
for (uint i = 0; EnumDisplaySettings(nullptr, i, &dm) != 0; i++) {
if (dm.dmBitsPerPel != bpp || dm.dmPelsWidth < 640 || dm.dmPelsHeight < 480) continue;
if (std::find(_resolutions.begin(), _resolutions.end(), Dimension(dm.dmPelsWidth, dm.dmPelsHeight)) != _resolutions.end()) continue;
_resolutions.emplace_back(dm.dmPelsWidth, dm.dmPelsHeight);
}
/* We have found no resolutions, show the default list */
if (_resolutions.empty()) {
_resolutions.assign(std::begin(default_resolutions), std::end(default_resolutions));
}
SortResolutions();
}
void VideoDriver_Win32Base::Initialize()
{
this->UpdateAutoResolution();
RegisterWndClass();
FindResolutions(this->GetFullscreenBpp());
/* fullscreen uses those */
this->width = this->width_org = _cur_resolution.width;
this->height = this->height_org = _cur_resolution.height;
Debug(driver, 2, "Resolution for display: {}x{}", _cur_resolution.width, _cur_resolution.height);
}
void VideoDriver_Win32Base::Stop()
{
DestroyWindow(this->main_wnd);
if (this->fullscreen) ChangeDisplaySettings(nullptr, 0);
MyShowCursor(true);
}
void VideoDriver_Win32Base::MakeDirty(int left, int top, int width, int height)
{
Rect r = {left, top, left + width, top + height};
this->dirty_rect = BoundingRect(this->dirty_rect, r);
}
void VideoDriver_Win32Base::CheckPaletteAnim()
{
if (!CopyPalette(_local_palette)) return;
this->MakeDirty(0, 0, _screen.width, _screen.height);
}
void VideoDriver_Win32Base::InputLoop()
{
bool old_ctrl_pressed = _ctrl_pressed;
_ctrl_pressed = this->has_focus && GetAsyncKeyState(VK_CONTROL) < 0;
_shift_pressed = this->has_focus && GetAsyncKeyState(VK_SHIFT) < 0;
/* Speedup when pressing tab, except when using ALT+TAB
* to switch to another application. */
this->fast_forward_key_pressed = this->has_focus && GetAsyncKeyState(VK_TAB) < 0 && GetAsyncKeyState(VK_MENU) >= 0;
/* Determine which directional keys are down. */
if (this->has_focus) {
_dirkeys =
(GetAsyncKeyState(VK_LEFT) < 0 ? 1 : 0) +
(GetAsyncKeyState(VK_UP) < 0 ? 2 : 0) +
(GetAsyncKeyState(VK_RIGHT) < 0 ? 4 : 0) +
(GetAsyncKeyState(VK_DOWN) < 0 ? 8 : 0);
} else {
_dirkeys = 0;
}
if (old_ctrl_pressed != _ctrl_pressed) HandleCtrlChanged();
}
bool VideoDriver_Win32Base::PollEvent()
{
MSG mesg;
if (!PeekMessage(&mesg, nullptr, 0, 0, PM_REMOVE)) return false;
/* Convert key messages to char messages if we want text input. */
if (EditBoxInGlobalFocus()) TranslateMessage(&mesg);
DispatchMessage(&mesg);
return true;
}
void VideoDriver_Win32Base::MainLoop()
{
this->StartGameThread();
for (;;) {
if (_exit_game) break;
this->Tick();
this->SleepTillNextTick();
}
this->StopGameThread();
}
void VideoDriver_Win32Base::ClientSizeChanged(int w, int h, bool force)
{
/* Allocate backing store of the new size. */
if (this->AllocateBackingStore(w, h, force)) {
CopyPalette(_local_palette, true);
BlitterFactory::GetCurrentBlitter()->PostResize();
GameSizeChanged();
}
}
bool VideoDriver_Win32Base::ChangeResolution(int w, int h)
{
if (_window_maximize) ShowWindow(this->main_wnd, SW_SHOWNORMAL);
this->width = this->width_org = w;
this->height = this->height_org = h;
return this->MakeWindow(_fullscreen); // _wnd.fullscreen screws up ingame resolution switching
}
bool VideoDriver_Win32Base::ToggleFullscreen(bool full_screen)
{
bool res = this->MakeWindow(full_screen);
InvalidateWindowClassesData(WC_GAME_OPTIONS, 3);
return res;
}
void VideoDriver_Win32Base::EditBoxLostFocus()
{
CancelIMEComposition(this->main_wnd);
SetCompositionPos(this->main_wnd);
SetCandidatePos(this->main_wnd);
}
static BOOL CALLBACK MonitorEnumProc(HMONITOR hMonitor, HDC, LPRECT, LPARAM data)
{
auto &list = *reinterpret_cast<std::vector<int>*>(data);
MONITORINFOEX monitorInfo = {};
monitorInfo.cbSize = sizeof(MONITORINFOEX);
GetMonitorInfo(hMonitor, &monitorInfo);
DEVMODE devMode = {};
devMode.dmSize = sizeof(DEVMODE);
devMode.dmDriverExtra = 0;
EnumDisplaySettings(monitorInfo.szDevice, ENUM_CURRENT_SETTINGS, &devMode);
if (devMode.dmDisplayFrequency != 0) list.push_back(devMode.dmDisplayFrequency);
return true;
}
std::vector<int> VideoDriver_Win32Base::GetListOfMonitorRefreshRates()
{
std::vector<int> rates = {};
EnumDisplayMonitors(nullptr, nullptr, MonitorEnumProc, reinterpret_cast<LPARAM>(&rates));
return rates;
}
Dimension VideoDriver_Win32Base::GetScreenSize() const
{
return { static_cast<uint>(GetSystemMetrics(SM_CXSCREEN)), static_cast<uint>(GetSystemMetrics(SM_CYSCREEN)) };
}
float VideoDriver_Win32Base::GetDPIScale()
{
typedef UINT (WINAPI *PFNGETDPIFORWINDOW)(HWND hwnd);
typedef UINT (WINAPI *PFNGETDPIFORSYSTEM)(VOID);
typedef HRESULT (WINAPI *PFNGETDPIFORMONITOR)(HMONITOR hMonitor, int dpiType, UINT *dpiX, UINT *dpiY);
static PFNGETDPIFORWINDOW _GetDpiForWindow = nullptr;
static PFNGETDPIFORSYSTEM _GetDpiForSystem = nullptr;
static PFNGETDPIFORMONITOR _GetDpiForMonitor = nullptr;
static bool init_done = false;
if (!init_done) {
init_done = true;
static DllLoader _user32(L"user32.dll");
static DllLoader _shcore(L"shcore.dll");
_GetDpiForWindow = _user32.GetProcAddress("GetDpiForWindow");
_GetDpiForSystem = _user32.GetProcAddress("GetDpiForSystem");
_GetDpiForMonitor = _shcore.GetProcAddress("GetDpiForMonitor");
}
UINT cur_dpi = 0;
if (cur_dpi == 0 && _GetDpiForWindow != nullptr && this->main_wnd != nullptr) {
/* Per window DPI is supported since Windows 10 Ver 1607. */
cur_dpi = _GetDpiForWindow(this->main_wnd);
}
if (cur_dpi == 0 && _GetDpiForMonitor != nullptr && this->main_wnd != nullptr) {
/* Per monitor is supported since Windows 8.1. */
UINT dpiX, dpiY;
if (SUCCEEDED(_GetDpiForMonitor(MonitorFromWindow(this->main_wnd, MONITOR_DEFAULTTOPRIMARY), 0 /* MDT_EFFECTIVE_DPI */, &dpiX, &dpiY))) {
cur_dpi = dpiX; // X and Y are always identical.
}
}
if (cur_dpi == 0 && _GetDpiForSystem != nullptr) {
/* Fall back to system DPI. */
cur_dpi = _GetDpiForSystem();
}
return cur_dpi > 0 ? cur_dpi / 96.0f : 1.0f; // Default Windows DPI value is 96.
}
bool VideoDriver_Win32Base::LockVideoBuffer()
{
if (this->buffer_locked) return false;
this->buffer_locked = true;
_screen.dst_ptr = this->GetVideoPointer();
assert(_screen.dst_ptr != nullptr);
return true;
}
void VideoDriver_Win32Base::UnlockVideoBuffer()
{
assert(_screen.dst_ptr != nullptr);
if (_screen.dst_ptr != nullptr) {
/* Hand video buffer back to the drawing backend. */
this->ReleaseVideoPointer();
_screen.dst_ptr = nullptr;
}
this->buffer_locked = false;
}
static FVideoDriver_Win32GDI iFVideoDriver_Win32GDI;
const char *VideoDriver_Win32GDI::Start(const StringList ¶m)
{
if (BlitterFactory::GetCurrentBlitter()->GetScreenDepth() == 0) return "Only real blitters supported";
this->Initialize();
this->MakePalette();
this->AllocateBackingStore(_cur_resolution.width, _cur_resolution.height);
this->MakeWindow(_fullscreen);
MarkWholeScreenDirty();
this->is_game_threaded = !GetDriverParamBool(param, "no_threads") && !GetDriverParamBool(param, "no_thread");
return nullptr;
}
void VideoDriver_Win32GDI::Stop()
{
DeleteObject(this->gdi_palette);
DeleteObject(this->dib_sect);
this->VideoDriver_Win32Base::Stop();
}
bool VideoDriver_Win32GDI::AllocateBackingStore(int w, int h, bool force)
{
uint bpp = BlitterFactory::GetCurrentBlitter()->GetScreenDepth();
w = std::max(w, 64);
h = std::max(h, 64);
if (!force && w == _screen.width && h == _screen.height) return false;
BITMAPINFO *bi = (BITMAPINFO *)new char[sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 256]();
bi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bi->bmiHeader.biWidth = this->width = w;
bi->bmiHeader.biHeight = -(this->height = h);
bi->bmiHeader.biPlanes = 1;
bi->bmiHeader.biBitCount = bpp;
bi->bmiHeader.biCompression = BI_RGB;
if (this->dib_sect) DeleteObject(this->dib_sect);
HDC dc = GetDC(0);
this->dib_sect = CreateDIBSection(dc, bi, DIB_RGB_COLORS, (VOID **)&this->buffer_bits, nullptr, 0);
if (this->dib_sect == nullptr) {
delete[] bi;
UserError("CreateDIBSection failed");
}
ReleaseDC(0, dc);
_screen.width = w;
_screen.pitch = (bpp == 8) ? Align(w, 4) : w;
_screen.height = h;
_screen.dst_ptr = this->GetVideoPointer();
delete[] bi;
return true;
}
bool VideoDriver_Win32GDI::AfterBlitterChange()
{
assert(BlitterFactory::GetCurrentBlitter()->GetScreenDepth() != 0);
return this->AllocateBackingStore(_screen.width, _screen.height, true) && this->MakeWindow(_fullscreen, false);
}
void VideoDriver_Win32GDI::MakePalette()
{
CopyPalette(_local_palette, true);
LOGPALETTE *pal = (LOGPALETTE *)new char[sizeof(LOGPALETTE) + (256 - 1) * sizeof(PALETTEENTRY)]();
pal->palVersion = 0x300;
pal->palNumEntries = 256;
for (uint i = 0; i != 256; i++) {
pal->palPalEntry[i].peRed = _local_palette.palette[i].r;
pal->palPalEntry[i].peGreen = _local_palette.palette[i].g;
pal->palPalEntry[i].peBlue = _local_palette.palette[i].b;
pal->palPalEntry[i].peFlags = 0;
}
this->gdi_palette = CreatePalette(pal);
delete[] pal;
if (this->gdi_palette == nullptr) UserError("CreatePalette failed!\n");
}
void VideoDriver_Win32GDI::UpdatePalette(HDC dc, uint start, uint count)
{
RGBQUAD rgb[256];
for (uint i = 0; i != count; i++) {
rgb[i].rgbRed = _local_palette.palette[start + i].r;
rgb[i].rgbGreen = _local_palette.palette[start + i].g;
rgb[i].rgbBlue = _local_palette.palette[start + i].b;
rgb[i].rgbReserved = 0;
}
SetDIBColorTable(dc, start, count, rgb);
}
void VideoDriver_Win32GDI::PaletteChanged(HWND hWnd)
{
HDC hDC = GetWindowDC(hWnd);
HPALETTE hOldPalette = SelectPalette(hDC, this->gdi_palette, FALSE);
UINT nChanged = RealizePalette(hDC);
SelectPalette(hDC, hOldPalette, TRUE);
ReleaseDC(hWnd, hDC);
if (nChanged != 0) this->MakeDirty(0, 0, _screen.width, _screen.height);
}
void VideoDriver_Win32GDI::Paint()
{
PerformanceMeasurer framerate(PFE_VIDEO);
if (IsEmptyRect(this->dirty_rect)) return;
HDC dc = GetDC(this->main_wnd);
HDC dc2 = CreateCompatibleDC(dc);
HBITMAP old_bmp = (HBITMAP)SelectObject(dc2, this->dib_sect);
HPALETTE old_palette = SelectPalette(dc, this->gdi_palette, FALSE);
if (_local_palette.count_dirty != 0) {
Blitter *blitter = BlitterFactory::GetCurrentBlitter();
switch (blitter->UsePaletteAnimation()) {
case Blitter::PALETTE_ANIMATION_VIDEO_BACKEND:
this->UpdatePalette(dc2, _local_palette.first_dirty, _local_palette.count_dirty);
break;
case Blitter::PALETTE_ANIMATION_BLITTER: {
blitter->PaletteAnimate(_local_palette);
break;
}
case Blitter::PALETTE_ANIMATION_NONE:
break;
default:
NOT_REACHED();
}
_local_palette.count_dirty = 0;
}
BitBlt(dc, 0, 0, this->width, this->height, dc2, 0, 0, SRCCOPY);
SelectPalette(dc, old_palette, TRUE);
SelectObject(dc2, old_bmp);
DeleteDC(dc2);
ReleaseDC(this->main_wnd, dc);
this->dirty_rect = {};
}
#ifdef _DEBUG
/* Keep this function here..
* It allows you to redraw the screen from within the MSVC debugger */
/* static */ int VideoDriver_Win32GDI::RedrawScreenDebug()
{
static int _fooctr;
VideoDriver_Win32GDI *drv = static_cast<VideoDriver_Win32GDI *>(VideoDriver::GetInstance());
_screen.dst_ptr = drv->GetVideoPointer();
UpdateWindows();
drv->Paint();
GdiFlush();
return _fooctr++;
}
#endif
#ifdef WITH_OPENGL
#include <GL/gl.h>
#include "../3rdparty/opengl/glext.h"
#include "../3rdparty/opengl/wglext.h"
#include "opengl.h"
#ifndef PFD_SUPPORT_COMPOSITION
# define PFD_SUPPORT_COMPOSITION 0x00008000
#endif
static PFNWGLCREATECONTEXTATTRIBSARBPROC _wglCreateContextAttribsARB = nullptr;
static PFNWGLSWAPINTERVALEXTPROC _wglSwapIntervalEXT = nullptr;
static bool _hasWGLARBCreateContextProfile = false; ///< Is WGL_ARB_create_context_profile supported?
/** Platform-specific callback to get an OpenGL function pointer. */
static OGLProc GetOGLProcAddressCallback(const char *proc)
{
OGLProc ret = reinterpret_cast<OGLProc>(wglGetProcAddress(proc));
if (ret == nullptr) {
/* Non-extension GL function? Try normal loading. */
ret = reinterpret_cast<OGLProc>(GetProcAddress(GetModuleHandle(L"opengl32"), proc));
}
return ret;
}
/**
* Set the pixel format of a window-
* @param dc Device context to set the pixel format of.
* @return nullptr on success, error message otherwise.
*/
static const char *SelectPixelFormat(HDC dc)
{
PIXELFORMATDESCRIPTOR pfd = {
sizeof(PIXELFORMATDESCRIPTOR), // Size of this struct.
1, // Version of this struct.
PFD_DRAW_TO_WINDOW | // Require window support.
PFD_SUPPORT_OPENGL | // Require OpenGL support.
PFD_DOUBLEBUFFER | // Use double buffering.
PFD_DEPTH_DONTCARE,
PFD_TYPE_RGBA, // Request RGBA format.
24, // 24 bpp (excluding alpha).
0, 0, 0, 0, 0, 0, 0, 0, // Colour bits and shift ignored.
0, 0, 0, 0, 0, // No accumulation buffer.
0, 0, // No depth/stencil buffer.
0, // No aux buffers.
PFD_MAIN_PLANE, // Main layer.
0, 0, 0, 0 // Ignored/reserved.
};
pfd.dwFlags |= PFD_SUPPORT_COMPOSITION; // Make OpenTTD compatible with Aero.
/* Choose a suitable pixel format. */
int format = ChoosePixelFormat(dc, &pfd);
if (format == 0) return "No suitable pixel format found";
if (!SetPixelFormat(dc, format, &pfd)) return "Can't set pixel format";
return nullptr;
}
/** Bind all WGL extension functions we need. */
static void LoadWGLExtensions()
{
/* Querying the supported WGL extensions and loading the matching
* functions requires a valid context, even for the extensions
* regarding context creation. To get around this, we create
* a dummy window with a dummy context. The extension functions
* remain valid even after this context is destroyed. */
HWND wnd = CreateWindow(_T("STATIC"), _T("dummy"), WS_OVERLAPPEDWINDOW, 0, 0, 0, 0, nullptr, nullptr, GetModuleHandle(nullptr), nullptr);
HDC dc = GetDC(wnd);
/* Set pixel format of the window. */
if (SelectPixelFormat(dc) == nullptr) {
/* Create rendering context. */
HGLRC rc = wglCreateContext(dc);
if (rc != nullptr) {
wglMakeCurrent(dc, rc);
#ifdef __MINGW32__
/* GCC doesn't understand the expected usage of wglGetProcAddress(). */
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-function-type"
#endif /* __MINGW32__ */
/* Get list of WGL extensions. */
PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetExtensionsStringARB = (PFNWGLGETEXTENSIONSSTRINGARBPROC)wglGetProcAddress("wglGetExtensionsStringARB");
if (wglGetExtensionsStringARB != nullptr) {
const char *wgl_exts = wglGetExtensionsStringARB(dc);
/* Bind supported functions. */
if (FindStringInExtensionList(wgl_exts, "WGL_ARB_create_context") != nullptr) {
_wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB");
}
_hasWGLARBCreateContextProfile = FindStringInExtensionList(wgl_exts, "WGL_ARB_create_context_profile") != nullptr;
if (FindStringInExtensionList(wgl_exts, "WGL_EXT_swap_control") != nullptr) {
_wglSwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC)wglGetProcAddress("wglSwapIntervalEXT");
}
}
#ifdef __MINGW32__
#pragma GCC diagnostic pop
#endif
wglMakeCurrent(nullptr, nullptr);
wglDeleteContext(rc);
}
}
ReleaseDC(wnd, dc);
DestroyWindow(wnd);
}
static FVideoDriver_Win32OpenGL iFVideoDriver_Win32OpenGL;
const char *VideoDriver_Win32OpenGL::Start(const StringList ¶m)
{
if (BlitterFactory::GetCurrentBlitter()->GetScreenDepth() == 0) return "Only real blitters supported";
Dimension old_res = _cur_resolution; // Save current screen resolution in case of errors, as MakeWindow invalidates it.
LoadWGLExtensions();
this->Initialize();
this->MakeWindow(_fullscreen);
/* Create and initialize OpenGL context. */
const char *err = this->AllocateContext();
if (err != nullptr) {
this->Stop();
_cur_resolution = old_res;
return err;
}
this->driver_info = GetName();
this->driver_info += " (";
this->driver_info += OpenGLBackend::Get()->GetDriverName();
this->driver_info += ")";
this->ClientSizeChanged(this->width, this->height, true);
/* We should have a valid screen buffer now. If not, something went wrong and we should abort. */
if (_screen.dst_ptr == nullptr) {
this->Stop();
_cur_resolution = old_res;
return "Can't get pointer to screen buffer";
}
/* Main loop expects to start with the buffer unmapped. */
this->ReleaseVideoPointer();
MarkWholeScreenDirty();
this->is_game_threaded = !GetDriverParamBool(param, "no_threads") && !GetDriverParamBool(param, "no_thread");
return nullptr;
}
void VideoDriver_Win32OpenGL::Stop()
{
this->DestroyContext();
this->VideoDriver_Win32Base::Stop();
}
void VideoDriver_Win32OpenGL::DestroyContext()
{
OpenGLBackend::Destroy();
wglMakeCurrent(nullptr, nullptr);
if (this->gl_rc != nullptr) {
wglDeleteContext(this->gl_rc);
this->gl_rc = nullptr;
}
if (this->dc != nullptr) {
ReleaseDC(this->main_wnd, this->dc);
this->dc = nullptr;
}
}
void VideoDriver_Win32OpenGL::ToggleVsync(bool vsync)
{
if (_wglSwapIntervalEXT != nullptr) {
_wglSwapIntervalEXT(vsync);
} else if (vsync) {
Debug(driver, 0, "OpenGL: Vsync requested, but not supported by driver");
}
}
const char *VideoDriver_Win32OpenGL::AllocateContext()
{
this->dc = GetDC(this->main_wnd);
const char *err = SelectPixelFormat(this->dc);
if (err != nullptr) return err;
HGLRC rc = nullptr;
/* Create OpenGL device context. Try to get an 3.2+ context if possible. */
if (_wglCreateContextAttribsARB != nullptr) {
/* Try for OpenGL 4.5 first. */
int attribs[] = {
WGL_CONTEXT_MAJOR_VERSION_ARB, 4,
WGL_CONTEXT_MINOR_VERSION_ARB, 5,
WGL_CONTEXT_FLAGS_ARB, _debug_driver_level >= 8 ? WGL_CONTEXT_DEBUG_BIT_ARB : 0,
_hasWGLARBCreateContextProfile ? WGL_CONTEXT_PROFILE_MASK_ARB : 0, WGL_CONTEXT_CORE_PROFILE_BIT_ARB, // Terminate list if WGL_ARB_create_context_profile isn't supported.
0
};
rc = _wglCreateContextAttribsARB(this->dc, nullptr, attribs);
if (rc == nullptr) {
/* Try again for a 3.2 context. */
attribs[1] = 3;
attribs[3] = 2;
rc = _wglCreateContextAttribsARB(this->dc, nullptr, attribs);
}
}
if (rc == nullptr) {
/* Old OpenGL or old driver, let's hope for the best. */
rc = wglCreateContext(this->dc);
if (rc == nullptr) return "Can't create OpenGL context";
}
if (!wglMakeCurrent(this->dc, rc)) return "Can't active GL context";
this->ToggleVsync(_video_vsync);
this->gl_rc = rc;
return OpenGLBackend::Create(&GetOGLProcAddressCallback, this->GetScreenSize());
}
bool VideoDriver_Win32OpenGL::ToggleFullscreen(bool full_screen)
{
if (_screen.dst_ptr != nullptr) this->ReleaseVideoPointer();
this->DestroyContext();
bool res = this->VideoDriver_Win32Base::ToggleFullscreen(full_screen);
res &= this->AllocateContext() == nullptr;
this->ClientSizeChanged(this->width, this->height, true);
return res;
}
bool VideoDriver_Win32OpenGL::AfterBlitterChange()
{
assert(BlitterFactory::GetCurrentBlitter()->GetScreenDepth() != 0);
this->ClientSizeChanged(this->width, this->height, true);
return true;
}
void VideoDriver_Win32OpenGL::PopulateSystemSprites()
{
OpenGLBackend::Get()->PopulateCursorCache();
}
void VideoDriver_Win32OpenGL::ClearSystemSprites()
{
OpenGLBackend::Get()->ClearCursorCache();
}
bool VideoDriver_Win32OpenGL::AllocateBackingStore(int w, int h, bool force)
{
if (!force && w == _screen.width && h == _screen.height) return false;
this->width = w = std::max(w, 64);
this->height = h = std::max(h, 64);
if (this->gl_rc == nullptr) return false;
if (_screen.dst_ptr != nullptr) this->ReleaseVideoPointer();
this->dirty_rect = {};
bool res = OpenGLBackend::Get()->Resize(w, h, force);
SwapBuffers(this->dc);
_screen.dst_ptr = this->GetVideoPointer();
return res;
}
void *VideoDriver_Win32OpenGL::GetVideoPointer()
{
if (BlitterFactory::GetCurrentBlitter()->NeedsAnimationBuffer()) {
this->anim_buffer = OpenGLBackend::Get()->GetAnimBuffer();
}
return OpenGLBackend::Get()->GetVideoBuffer();
}
void VideoDriver_Win32OpenGL::ReleaseVideoPointer()
{
if (this->anim_buffer != nullptr) OpenGLBackend::Get()->ReleaseAnimBuffer(this->dirty_rect);
OpenGLBackend::Get()->ReleaseVideoBuffer(this->dirty_rect);
this->dirty_rect = {};
_screen.dst_ptr = nullptr;
this->anim_buffer = nullptr;
}
void VideoDriver_Win32OpenGL::Paint()
{
PerformanceMeasurer framerate(PFE_VIDEO);
if (_local_palette.count_dirty != 0) {
Blitter *blitter = BlitterFactory::GetCurrentBlitter();
/* Always push a changed palette to OpenGL. */
OpenGLBackend::Get()->UpdatePalette(_local_palette.palette, _local_palette.first_dirty, _local_palette.count_dirty);
if (blitter->UsePaletteAnimation() == Blitter::PALETTE_ANIMATION_BLITTER) {
blitter->PaletteAnimate(_local_palette);
}
_local_palette.count_dirty = 0;
}
OpenGLBackend::Get()->Paint();
OpenGLBackend::Get()->DrawMouseCursor();
SwapBuffers(this->dc);
}
#endif /* WITH_OPENGL */
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