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authorMichael Lutz <michi@icosahedron.de>2021-01-16 16:43:02 +0100
committerMichael Lutz <michi@icosahedron.de>2021-02-22 22:16:07 +0100
commit78b8fc3e4fea1f1788ea793c4e9cf1e39898135a (patch)
treec20908c7ece5db644d51a14051a08fa80baca297 /src/video
parent8b90d4abe02ee7927ed3e98ba1846e363b7a5bbd (diff)
downloadopenttd-78b8fc3e4fea1f1788ea793c4e9cf1e39898135a.tar.xz
Codechange: [Win32] Move GDI-specific variables and related functions into the GDI video driver class.
Diffstat (limited to 'src/video')
-rw-r--r--src/video/win32_v.cpp185
-rw-r--r--src/video/win32_v.h16
2 files changed, 103 insertions, 98 deletions
diff --git a/src/video/win32_v.cpp b/src/video/win32_v.cpp
index 73c01dea1..58dad7851 100644
--- a/src/video/win32_v.cpp
+++ b/src/video/win32_v.cpp
@@ -41,10 +41,7 @@
#endif
static struct {
- HWND main_wnd; ///< Handle to system window.
- HBITMAP dib_sect; ///< System bitmap object referencing our rendering buffer.
void *buffer_bits; ///< Internal rendering buffer.
- HPALETTE gdi_palette; ///< Palette object for 8bpp blitter.
int width; ///< Width in pixels of our display surface.
int height; ///< Height in pixels of our display surface.
int width_org; ///< Original monitor resolution width, before we changed it.
@@ -71,43 +68,6 @@ static Palette _local_palette;
/** Region of the screen that needs redrawing. */
static Rect _dirty_rect;
-static void MakePalette()
-{
- _cur_palette.first_dirty = 0;
- _cur_palette.count_dirty = 256;
- _local_palette = _cur_palette;
-
- LOGPALETTE *pal = (LOGPALETTE*)alloca(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;
-
- }
- _wnd.gdi_palette = CreatePalette(pal);
- if (_wnd.gdi_palette == nullptr) usererror("CreatePalette failed!\n");
-}
-
-static void UpdatePalette(HDC dc, uint start, uint count)
-{
- RGBQUAD rgb[256];
- uint i;
-
- for (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);
-}
-
bool VideoDriver_Win32Base::ClaimMousePointer()
{
MyShowCursor(false, true);
@@ -182,33 +142,6 @@ static uint MapWindowsKey(uint sym)
return key;
}
-#ifdef _DEBUG
-/* Keep this function here..
- * It allows you to redraw the screen from within the MSVC debugger */
-int RedrawScreenDebug()
-{
- HDC dc, dc2;
- static int _fooctr;
- HBITMAP old_bmp;
- HPALETTE old_palette;
-
- UpdateWindows();
-
- dc = GetDC(_wnd.main_wnd);
- dc2 = CreateCompatibleDC(dc);
-
- old_bmp = (HBITMAP)SelectObject(dc2, _wnd.dib_sect);
- old_palette = SelectPalette(dc, _wnd.gdi_palette, FALSE);
- BitBlt(dc, 0, 0, _wnd.width, _wnd.height, dc2, 0, 0, SRCCOPY);
- SelectPalette(dc, old_palette, TRUE);
- SelectObject(dc2, old_bmp);
- DeleteDC(dc2);
- ReleaseDC(_wnd.main_wnd, dc);
-
- return _fooctr++;
-}
-#endif
-
/**
* Instantiate a new window.
* @param full_screen Whether to make a full screen window or not.
@@ -221,9 +154,9 @@ bool VideoDriver_Win32Base::MakeWindow(bool full_screen)
_fullscreen = full_screen;
/* recreate window? */
- if ((full_screen || _wnd.fullscreen) && _wnd.main_wnd) {
- DestroyWindow(_wnd.main_wnd);
- _wnd.main_wnd = 0;
+ if ((full_screen || _wnd.fullscreen) && this->main_wnd) {
+ DestroyWindow(this->main_wnd);
+ this->main_wnd = 0;
}
if (full_screen) {
@@ -289,8 +222,8 @@ bool VideoDriver_Win32Base::MakeWindow(bool full_screen)
w = r.right - r.left;
h = r.bottom - r.top;
- if (_wnd.main_wnd != nullptr) {
- if (!_window_maximize) SetWindowPos(_wnd.main_wnd, 0, 0, 0, w, h, SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOZORDER | SWP_NOMOVE);
+ if (this->main_wnd != nullptr) {
+ if (!_window_maximize) SetWindowPos(this->main_wnd, 0, 0, 0, w, h, SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOZORDER | SWP_NOMOVE);
} else {
int x = (GetSystemMetrics(SM_CXSCREEN) - w) / 2;
int y = (GetSystemMetrics(SM_CYSCREEN) - h) / 2;
@@ -298,16 +231,16 @@ bool VideoDriver_Win32Base::MakeWindow(bool full_screen)
char window_title[64];
seprintf(window_title, lastof(window_title), "OpenTTD %s", _openttd_revision);
- _wnd.main_wnd = CreateWindow(_T("OTTD"), MB_TO_WIDE(window_title), style, x, y, w, h, 0, 0, GetModuleHandle(nullptr), this);
- if (_wnd.main_wnd == nullptr) usererror("CreateWindow failed");
- ShowWindow(_wnd.main_wnd, showstyle);
+ this->main_wnd = CreateWindow(_T("OTTD"), MB_TO_WIDE(window_title), 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(); // invalidate all windows, force redraw
- return true; // the request succeeded
+ GameSizeChanged();
+ return true;
}
/* static */ void VideoDriver_Win32Base::PaintThreadThunk(VideoDriver_Win32Base *drv)
@@ -1077,7 +1010,7 @@ bool VideoDriver_Win32Base::ChangeResolution(int w, int h)
std::unique_lock<std::recursive_mutex> lock;
if (_draw_mutex != nullptr) lock = std::unique_lock<std::recursive_mutex>(*_draw_mutex);
- if (_window_maximize) ShowWindow(_wnd.main_wnd, SW_SHOWNORMAL);
+ if (_window_maximize) ShowWindow(this->main_wnd, SW_SHOWNORMAL);
_wnd.width = _wnd.width_org = w;
_wnd.height = _wnd.height_org = h;
@@ -1108,9 +1041,9 @@ void VideoDriver_Win32Base::EditBoxLostFocus()
std::unique_lock<std::recursive_mutex> lock;
if (_draw_mutex != nullptr) lock = std::unique_lock<std::recursive_mutex>(*_draw_mutex);
- CancelIMEComposition(_wnd.main_wnd);
- SetCompositionPos(_wnd.main_wnd);
- SetCandidatePos(_wnd.main_wnd);
+ CancelIMEComposition(this->main_wnd);
+ SetCompositionPos(this->main_wnd);
+ SetCandidatePos(this->main_wnd);
}
Dimension VideoDriver_Win32Base::GetScreenSize() const
@@ -1139,14 +1072,14 @@ float VideoDriver_Win32Base::GetDPIScale()
UINT cur_dpi = 0;
- if (cur_dpi == 0 && _GetDpiForWindow != nullptr && _wnd.main_wnd != nullptr) {
+ if (cur_dpi == 0 && _GetDpiForWindow != nullptr && this->main_wnd != nullptr) {
/* Per window DPI is supported since Windows 10 Ver 1607. */
- cur_dpi = _GetDpiForWindow(_wnd.main_wnd);
+ cur_dpi = _GetDpiForWindow(this->main_wnd);
}
- if (cur_dpi == 0 && _GetDpiForMonitor != nullptr && _wnd.main_wnd != nullptr) {
+ 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(_wnd.main_wnd, MONITOR_DEFAULTTOPRIMARY), 0 /* MDT_EFFECTIVE_DPI */, &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.
}
}
@@ -1182,7 +1115,7 @@ const char *VideoDriver_Win32GDI::Start(const StringList &param)
RegisterWndClass();
- MakePalette();
+ this->MakePalette();
FindResolutions();
@@ -1204,9 +1137,9 @@ const char *VideoDriver_Win32GDI::Start(const StringList &param)
void VideoDriver_Win32GDI::Stop()
{
- DeleteObject(_wnd.gdi_palette);
- DeleteObject(_wnd.dib_sect);
- DestroyWindow(_wnd.main_wnd);
+ DeleteObject(this->gdi_palette);
+ DeleteObject(this->dib_sect);
+ DestroyWindow(this->main_wnd);
if (_wnd.fullscreen) ChangeDisplaySettings(nullptr, 0);
MyShowCursor(true);
@@ -1232,11 +1165,11 @@ bool VideoDriver_Win32GDI::AllocateBackingStore(int w, int h, bool force)
bi->bmiHeader.biBitCount = bpp;
bi->bmiHeader.biCompression = BI_RGB;
- if (_wnd.dib_sect) DeleteObject(_wnd.dib_sect);
+ if (this->dib_sect) DeleteObject(this->dib_sect);
HDC dc = GetDC(0);
- _wnd.dib_sect = CreateDIBSection(dc, bi, DIB_RGB_COLORS, (VOID **)&_wnd.buffer_bits, nullptr, 0);
- if (_wnd.dib_sect == nullptr) usererror("CreateDIBSection failed");
+ this->dib_sect = CreateDIBSection(dc, bi, DIB_RGB_COLORS, (VOID **)&_wnd.buffer_bits, nullptr, 0);
+ if (this->dib_sect == nullptr) usererror("CreateDIBSection failed");
ReleaseDC(0, dc);
_screen.width = w;
@@ -1253,10 +1186,46 @@ bool VideoDriver_Win32GDI::AfterBlitterChange()
return this->AllocateBackingStore(_screen.width, _screen.height, true) && this->MakeWindow(_fullscreen);
}
+void VideoDriver_Win32GDI::MakePalette()
+{
+ _cur_palette.first_dirty = 0;
+ _cur_palette.count_dirty = 256;
+ _local_palette = _cur_palette;
+
+ LOGPALETTE *pal = (LOGPALETTE*)alloca(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);
+ 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, _wnd.gdi_palette, FALSE);
+ HPALETTE hOldPalette = SelectPalette(hDC, this->gdi_palette, FALSE);
UINT nChanged = RealizePalette(hDC);
SelectPalette(hDC, hOldPalette, TRUE);
@@ -1270,18 +1239,18 @@ void VideoDriver_Win32GDI::Paint()
if (IsEmptyRect(_dirty_rect)) return;
- HDC dc = GetDC(_wnd.main_wnd);
+ HDC dc = GetDC(this->main_wnd);
HDC dc2 = CreateCompatibleDC(dc);
- HBITMAP old_bmp = (HBITMAP)SelectObject(dc2, _wnd.dib_sect);
- HPALETTE old_palette = SelectPalette(dc, _wnd.gdi_palette, FALSE);
+ HBITMAP old_bmp = (HBITMAP)SelectObject(dc2, this->dib_sect);
+ HPALETTE old_palette = SelectPalette(dc, this->gdi_palette, FALSE);
if (_cur_palette.count_dirty != 0) {
Blitter *blitter = BlitterFactory::GetCurrentBlitter();
switch (blitter->UsePaletteAnimation()) {
case Blitter::PALETTE_ANIMATION_VIDEO_BACKEND:
- UpdatePalette(dc2, _local_palette.first_dirty, _local_palette.count_dirty);
+ this->UpdatePalette(dc2, _local_palette.first_dirty, _local_palette.count_dirty);
break;
case Blitter::PALETTE_ANIMATION_BLITTER:
@@ -1302,7 +1271,7 @@ void VideoDriver_Win32GDI::Paint()
SelectObject(dc2, old_bmp);
DeleteDC(dc2);
- ReleaseDC(_wnd.main_wnd, dc);
+ ReleaseDC(this->main_wnd, dc);
_dirty_rect = {};
}
@@ -1325,3 +1294,23 @@ void VideoDriver_Win32GDI::PaintThread()
_draw_signal->wait(*_draw_mutex);
}
}
+
+
+#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;
+
+ _screen.dst_ptr = _wnd.buffer_bits;
+ UpdateWindows();
+
+ VideoDriver_Win32GDI *drv = static_cast<VideoDriver_Win32GDI *>(VideoDriver::GetInstance());
+
+ drv->Paint();
+ GdiFlush();
+
+ return _fooctr++;
+}
+#endif
diff --git a/src/video/win32_v.h b/src/video/win32_v.h
index cb1658cef..13115e8c9 100644
--- a/src/video/win32_v.h
+++ b/src/video/win32_v.h
@@ -15,6 +15,8 @@
/** Base class for Windows video drivers. */
class VideoDriver_Win32Base : public VideoDriver {
public:
+ VideoDriver_Win32Base() : main_wnd(nullptr) {}
+
void MakeDirty(int left, int top, int width, int height) override;
void MainLoop() override;
@@ -32,6 +34,8 @@ public:
void EditBoxLostFocus() override;
protected:
+ HWND main_wnd; ///< Handle to system window.
+
Dimension GetScreenSize() const override;
float GetDPIScale() override;
void InputLoop() override;
@@ -58,6 +62,8 @@ private:
/** The GDI video driver for windows. */
class VideoDriver_Win32GDI : public VideoDriver_Win32Base {
public:
+ VideoDriver_Win32GDI() : dib_sect(nullptr), gdi_palette(nullptr) {}
+
const char *Start(const StringList &param) override;
void Stop() override;
@@ -67,11 +73,21 @@ public:
const char *GetName() const override { return "win32"; }
protected:
+ HBITMAP dib_sect; ///< System bitmap object referencing our rendering buffer.
+ HPALETTE gdi_palette; ///< Palette object for 8bpp blitter.
+
void Paint() override;
void PaintThread() override;
bool AllocateBackingStore(int w, int h, bool force = false) override;
void PaletteChanged(HWND hWnd) override;
+ void MakePalette();
+ void UpdatePalette(HDC dc, uint start, uint count);
+
+#ifdef _DEBUG
+public:
+ static int RedrawScreenDebug();
+#endif
};
/** The factory for Windows' video driver. */