aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--NEWS1
-rw-r--r--backends/sdl/graphics.cpp273
-rw-r--r--backends/sdl/sdl-common.h26
-rw-r--r--backends/sdl/sdl.cpp23
4 files changed, 223 insertions, 100 deletions
diff --git a/NEWS b/NEWS
index b46ae05098..bfe0f2fe11 100644
--- a/NEWS
+++ b/NEWS
@@ -4,6 +4,7 @@ For a more comprehensive changelog for the latest experimental CVS code, see:
0.??
General:
- Added support for FLAC (losless) encoded audio files
+ - Added an On Screen Display to the SDL backend
SCUMM:
- Added graphics decoders for 3DO Humongous Entertainment games
diff --git a/backends/sdl/graphics.cpp b/backends/sdl/graphics.cpp
index 307caa724a..0c9e603220 100644
--- a/backends/sdl/graphics.cpp
+++ b/backends/sdl/graphics.cpp
@@ -23,6 +23,7 @@
#include "backends/sdl/sdl-common.h"
#include "common/scaler.h"
#include "common/util.h"
+#include "gui/font.h"
static const OSystem::GraphicsMode s_supportedGraphicsModes[] = {
{"1x", "Normal (no scaling)", GFX_NORMAL},
@@ -107,19 +108,41 @@ bool OSystem_SDL::setGraphicsMode(int mode) {
}
_mode = mode;
-
+ _scaler_proc = newScalerProc;
if (newScaleFactor != _scaleFactor) {
+ _scaleFactor = newScaleFactor;
hotswap_gfx_mode();
- } else {
- _scaler_proc = newScalerProc;
- _forceFull = true;
+ }
- // Blit everything to the screen
- internUpdateScreen();
-
- // Make sure that an EVENT_SCREEN_CHANGED gets sent later
- _modeChanged = true;
+ if (!_screen)
+ return true;
+
+#ifdef USE_OSD
+ if (_osdSurface) {
+ const char *newScalerName = 0;
+ const GraphicsMode *g = s_supportedGraphicsModes;
+ while (g->name) {
+ if (g->id == mode) {
+ newScalerName = g->description;
+ break;
+ }
+ g++;
+ }
+ if (newScalerName) {
+ char buffer[128];
+ sprintf(buffer, "Active graphics filter: %s", newScalerName);
+ displayMessageOnOSD(buffer);
+ }
}
+#endif
+
+
+ // Blit everything to the screen
+ _forceFull = true;
+ internUpdateScreen();
+
+ // Make sure that an EVENT_SCREEN_CHANGED gets sent later
+ _modeChanged = true;
return true;
}
@@ -153,69 +176,13 @@ void OSystem_SDL::load_gfx_mode() {
_mode_flags |= DF_UPDATE_EXPAND_1_PIXEL;
_tmpscreen = NULL;
- _tmpScreenWidth = (_screenWidth + 3);
- switch(_mode) {
- case GFX_NORMAL:
- _scaleFactor = 1;
- _scaler_proc = Normal1x;
- break;
- case GFX_DOUBLESIZE:
- _scaleFactor = 2;
- _scaler_proc = Normal2x;
- break;
- case GFX_TRIPLESIZE:
- _scaleFactor = 3;
- _scaler_proc = Normal3x;
- break;
-
- case GFX_2XSAI:
- _scaleFactor = 2;
- _scaler_proc = _2xSaI;
- break;
- case GFX_SUPER2XSAI:
- _scaleFactor = 2;
- _scaler_proc = Super2xSaI;
- break;
- case GFX_SUPEREAGLE:
- _scaleFactor = 2;
- _scaler_proc = SuperEagle;
- break;
- case GFX_ADVMAME2X:
- _scaleFactor = 2;
- _scaler_proc = AdvMame2x;
- break;
- case GFX_ADVMAME3X:
- _scaleFactor = 3;
- _scaler_proc = AdvMame3x;
- break;
- case GFX_HQ2X:
- _scaleFactor = 2;
- _scaler_proc = HQ2x;
- break;
- case GFX_HQ3X:
- _scaleFactor = 3;
- _scaler_proc = HQ3x;
- break;
- case GFX_TV2X:
- _scaleFactor = 2;
- _scaler_proc = TV2x;
- break;
- case GFX_DOTMATRIX:
- _scaleFactor = 2;
- _scaler_proc = DotMatrix;
- break;
-
- default:
- error("unknown gfx mode %d", _mode);
- }
-
//
// Create the surface that contains the 8 bit game data
//
_screen = SDL_CreateRGBSurface(SDL_SWSURFACE, _screenWidth, _screenHeight, 8, 0, 0, 0, 0);
if (_screen == NULL)
- error("_screen failed");
+ error("allocating _screen failed");
//
// Create the surface that contains the scaled graphics in 16 bit mode
@@ -256,16 +223,31 @@ void OSystem_SDL::load_gfx_mode() {
InitScalers(565);
// Need some extra bytes around when using 2xSaI
- uint16 *tmp_screen = (uint16 *)calloc(_tmpScreenWidth * (_screenHeight + 3), sizeof(uint16));
- _tmpscreen = SDL_CreateRGBSurfaceFrom(tmp_screen,
- _tmpScreenWidth, _screenHeight + 3, 16, _tmpScreenWidth * 2,
+ _tmpscreen = SDL_CreateRGBSurface(SDL_SWSURFACE,
+ _screenWidth + 3,
+ _screenHeight + 3,
+ 16,
_hwscreen->format->Rmask,
_hwscreen->format->Gmask,
_hwscreen->format->Bmask,
_hwscreen->format->Amask);
if (_tmpscreen == NULL)
- error("_tmpscreen failed");
+ error("allocating _tmpscreen failed");
+
+#ifdef USE_OSD
+ _osdSurface = SDL_CreateRGBSurface(SDL_SWSURFACE | SDL_RLEACCEL | SDL_SRCCOLORKEY | SDL_SRCALPHA,
+ _hwscreen->w,
+ _hwscreen->h,
+ 16,
+ _hwscreen->format->Rmask,
+ _hwscreen->format->Gmask,
+ _hwscreen->format->Bmask,
+ _hwscreen->format->Amask);
+ if (_osdSurface == NULL)
+ error("allocating _osdSurface failed");
+ SDL_SetColorKey(_osdSurface, SDL_RLEACCEL | SDL_SRCCOLORKEY | SDL_SRCALPHA, kOSDColorKey);
+#endif
// keyboard cursor control, some other better place for it?
km.x_max = _screenWidth * _scaleFactor - 1;
@@ -286,10 +268,16 @@ void OSystem_SDL::unload_gfx_mode() {
}
if (_tmpscreen) {
- free(_tmpscreen->pixels);
SDL_FreeSurface(_tmpscreen);
_tmpscreen = NULL;
}
+
+#ifdef USE_OSD
+ if (_osdSurface) {
+ SDL_FreeSurface(_osdSurface);
+ _osdSurface = NULL;
+ }
+#endif
}
void OSystem_SDL::hotswap_gfx_mode() {
@@ -304,6 +292,11 @@ void OSystem_SDL::hotswap_gfx_mode() {
// Release the HW screen surface
SDL_FreeSurface(_hwscreen);
+#ifdef USE_OSD
+ // Release the OSD surface
+ SDL_FreeSurface(_osdSurface);
+#endif
+
// Setup the new GFX mode
load_gfx_mode();
@@ -316,7 +309,6 @@ void OSystem_SDL::hotswap_gfx_mode() {
// Free the old surfaces
SDL_FreeSurface(old_screen);
- free(old_tmpscreen->pixels);
SDL_FreeSurface(old_tmpscreen);
// Blit everything to the screen
@@ -364,6 +356,26 @@ void OSystem_SDL::internUpdateScreen() {
_forceFull = true;
}
+#ifdef USE_OSD
+ // OSD visible (i.e. non-transparent)?
+ if (_osdAlpha != SDL_ALPHA_TRANSPARENT) {
+ // Updated alpha value
+ const int diff = SDL_GetTicks() - _osdFadeStartTime;
+ if (diff > 0) {
+ if (diff >= kOSDFadeOutDuration) {
+ // Back to full transparency
+ _osdAlpha = SDL_ALPHA_TRANSPARENT;
+ } else {
+ // Do a linear fade out...
+ const int startAlpha = SDL_ALPHA_TRANSPARENT + kOSDInitialAlpha * (SDL_ALPHA_OPAQUE - SDL_ALPHA_TRANSPARENT) / 100;
+ _osdAlpha = startAlpha + diff * (SDL_ALPHA_TRANSPARENT - startAlpha) / kOSDFadeOutDuration;
+ }
+ SDL_SetAlpha(_osdSurface, SDL_RLEACCEL | SDL_SRCCOLORKEY | SDL_SRCALPHA, _osdAlpha);
+ _forceFull = true;
+ }
+ }
+#endif
+
// Force a full redraw if requested
if (_forceFull) {
_num_dirty_rects = 1;
@@ -453,6 +465,12 @@ void OSystem_SDL::internUpdateScreen() {
_dirty_rect_list[0].h = effectiveScreenHeight();
}
+#ifdef USE_OSD
+ if (_osdAlpha != SDL_ALPHA_TRANSPARENT) {
+ SDL_BlitSurface(_osdSurface, 0, _hwscreen, 0);
+ }
+#endif
+
// Finally, blit all our changes to the screen
SDL_UpdateRects(_hwscreen, _num_dirty_rects, _dirty_rect_list);
}
@@ -488,11 +506,21 @@ void OSystem_SDL::setFullscreenMode(bool enable) {
if (!SDL_WM_ToggleFullScreen(_hwscreen)) {
// if ToggleFullScreen fails, achieve the same effect with hotswap gfx mode
hotswap_gfx_mode();
- } else {
- // Make sure that an EVENT_SCREEN_CHANGED gets sent later
- _modeChanged = true;
}
#endif
+
+#ifdef USE_OSD
+ if (_full_screen)
+ displayMessageOnOSD("Fullscreen mode");
+ else
+ displayMessageOnOSD("Windowed mode");
+#endif
+
+ // Blit everything to the screen
+ internUpdateScreen();
+
+ // Make sure that an EVENT_SCREEN_CHANGED gets sent later
+ _modeChanged = true;
}
}
@@ -830,7 +858,7 @@ void OSystem_SDL::clear_overlay() {
_forceFull = true;
}
-void OSystem_SDL::grab_overlay(int16 *buf, int pitch) {
+void OSystem_SDL::grab_overlay(OverlayColor *buf, int pitch) {
if (!_overlayVisible)
return;
@@ -843,18 +871,18 @@ void OSystem_SDL::grab_overlay(int16 *buf, int pitch) {
if (SDL_LockSurface(_tmpscreen) == -1)
error("SDL_LockSurface failed: %s", SDL_GetError());
- int16 *src = (int16 *)_tmpscreen->pixels + _tmpScreenWidth + 1;
+ byte *src = (byte *)_tmpscreen->pixels + _tmpscreen->pitch + 2; // Offset by one row, one column
int h = _screenHeight;
do {
memcpy(buf, src, _screenWidth*2);
- src += _tmpScreenWidth;
+ src += _tmpscreen->pitch;
buf += pitch;
} while (--h);
SDL_UnlockSurface(_tmpscreen);
}
-void OSystem_SDL::copy_rect_overlay(const int16 *buf, int pitch, int x, int y, int w, int h) {
+void OSystem_SDL::copy_rect_overlay(const OverlayColor *buf, int pitch, int x, int y, int w, int h) {
if (!_overlayVisible)
return;
@@ -894,21 +922,21 @@ void OSystem_SDL::copy_rect_overlay(const int16 *buf, int pitch, int x, int y, i
if (SDL_LockSurface(_tmpscreen) == -1)
error("SDL_LockSurface failed: %s", SDL_GetError());
- int16 *dst = (int16 *)_tmpscreen->pixels + (y + 1) * _tmpScreenWidth + (x + 1);
+ byte *dst = (byte *)_tmpscreen->pixels + (y + 1) * _tmpscreen->pitch + (x + 1) * 2;
do {
memcpy(dst, buf, w * 2);
- dst += _tmpScreenWidth;
+ dst += _tmpscreen->pitch;
buf += pitch;
} while (--h);
SDL_UnlockSurface(_tmpscreen);
}
-int16 OSystem_SDL::RGBToColor(uint8 r, uint8 g, uint8 b) {
+OverlayColor OSystem_SDL::RGBToColor(uint8 r, uint8 g, uint8 b) {
return SDL_MapRGB(_tmpscreen->format, r, g, b);
}
-void OSystem_SDL::colorToRGB(int16 color, uint8 &r, uint8 &g, uint8 &b) {
+void OSystem_SDL::colorToRGB(OverlayColor color, uint8 &r, uint8 &g, uint8 &b) {
SDL_GetRGB(color, _tmpscreen->format, &r, &g, &b);
}
@@ -1040,22 +1068,22 @@ void OSystem_SDL::draw_mouse() {
} else {
uint16 *bak = (uint16 *)_mouseBackup; // Surface used to backup the area obscured by the mouse
- uint16 *dst; // Surface we are drawing into
+ byte *dst; // Surface we are drawing into
- dst = (uint16 *)_tmpscreen->pixels + (y + 1) * _tmpScreenWidth + (x + 1);
+ dst = (byte *)_tmpscreen->pixels + (y + 1) * _tmpscreen->pitch + (x + 1) * 2;
while (h > 0) {
int width = w;
while (width > 0) {
- *bak++ = *dst;
+ *bak++ = *(uint16 *)dst;
color = *src++;
if (color != 0xFF) // 0xFF = transparent, don't draw
- *dst = RGBToColor(_currentPalette[color].r, _currentPalette[color].g, _currentPalette[color].b);
- dst++;
+ *(uint16 *)dst = RGBToColor(_currentPalette[color].r, _currentPalette[color].g, _currentPalette[color].b);
+ dst += 2;
width--;
}
src += _mouseCurState.w - w;
bak += MAX_MOUSE_W - w;
- dst += _tmpScreenWidth - w;
+ dst += _tmpscreen->pitch - w * 2;
h--;
}
}
@@ -1113,13 +1141,14 @@ void OSystem_SDL::undraw_mouse() {
} else {
- uint16 *dst, *bak = (uint16 *)_mouseBackup;
+ byte *dst;
+ uint16 *bak = (uint16 *)_mouseBackup;
// No need to do clipping here, since draw_mouse() did that already
- dst = (uint16 *)_tmpscreen->pixels + (old_mouse_y + 1) * _tmpScreenWidth + (old_mouse_x + 1);
- for (y = 0; y < old_mouse_h; ++y, bak += MAX_MOUSE_W, dst += _tmpScreenWidth) {
+ dst = (byte *)_tmpscreen->pixels + (old_mouse_y + 1) * _tmpscreen->pitch + (old_mouse_x + 1) * 2;
+ for (y = 0; y < old_mouse_h; ++y, bak += MAX_MOUSE_W, dst += _tmpscreen->pitch) {
for (x = 0; x < old_mouse_w; ++x) {
- dst[x] = bak[x];
+ *((uint16 *)dst + x) = bak[x];
}
}
}
@@ -1128,3 +1157,61 @@ void OSystem_SDL::undraw_mouse() {
SDL_UnlockSurface(_overlayVisible ? _tmpscreen : _screen);
}
+
+
+#pragma mark -
+#pragma mark --- Mouse ---
+#pragma mark -
+
+#ifdef USE_OSD
+void OSystem_SDL::displayMessageOnOSD(const char *msg) {
+
+// printf("displayMessageOnOSD(%s)\n", msg);
+ if (SDL_LockSurface(_osdSurface))
+ error("displayMessageOnOSD: SDL_LockSurface failed: %s", SDL_GetError());
+
+ GUI::Surface dst;
+ dst.pixels = _osdSurface->pixels;
+ dst.w = _osdSurface->w;
+ dst.h = _osdSurface->h;
+ dst.pitch = _osdSurface->pitch;
+ dst.bytesPerPixel = _osdSurface->format->BytesPerPixel;
+
+ // Clear everything with the "transparent" color, i.e. the colorkey
+ SDL_FillRect(_osdSurface, 0, kOSDColorKey);
+
+ // Determine a rect which would contain the message string (clipped to the
+ // screen dimensions).
+ const int vOffset = 10;
+ int width = GUI::g_sysfont.getStringWidth(msg) + 16;
+ int height = GUI::g_sysfont.getFontHeight() + 2 * vOffset;
+ if (width > dst.w)
+ width = dst.w;
+ if (height > dst.h)
+ height = dst.h;
+
+ // Draw a dark gray rect
+ // TODO: Rounded corners ? Border?
+ SDL_Rect osdRect;
+ osdRect.x = (dst.w - width) / 2;
+ osdRect.y = (dst.h - height) / 2;
+ osdRect.w = width;
+ osdRect.h = height;
+ SDL_FillRect(_osdSurface, &osdRect, SDL_MapRGB(_osdSurface->format, 64, 64, 64));
+
+ // Render the message, centered, and in white
+ GUI::g_sysfont.drawString(&dst, msg, osdRect.x, osdRect.y + vOffset, osdRect.w,
+ SDL_MapRGB(_osdSurface->format, 255, 255, 255),
+ GUI::kTextAlignCenter);
+
+ SDL_UnlockSurface(_osdSurface);
+
+ // Init the OSD display parameters, and the fade out
+ _osdAlpha = SDL_ALPHA_TRANSPARENT + kOSDInitialAlpha * (SDL_ALPHA_OPAQUE - SDL_ALPHA_TRANSPARENT) / 100;
+ _osdFadeStartTime = SDL_GetTicks() + kOSDFadeOutDelay;
+ SDL_SetAlpha(_osdSurface, SDL_RLEACCEL | SDL_SRCCOLORKEY | SDL_SRCALPHA, _osdAlpha);
+
+ // Ensure a full redraw takes place next time the screen is updated
+ _forceFull = true;
+}
+#endif
diff --git a/backends/sdl/sdl-common.h b/backends/sdl/sdl-common.h
index de97a27e8d..c82ddb17c2 100644
--- a/backends/sdl/sdl-common.h
+++ b/backends/sdl/sdl-common.h
@@ -31,6 +31,9 @@
#include <SDL.h>
+// Uncomment this to enable the 'on screen display' code.
+#define USE_OSD 1
+
class OSystem_SDL : public OSystem {
public:
OSystem_SDL();
@@ -111,14 +114,14 @@ public:
virtual void show_overlay();
virtual void hide_overlay();
virtual void clear_overlay();
- virtual void grab_overlay(int16 *buf, int pitch);
- virtual void copy_rect_overlay(const int16 *buf, int pitch, int x, int y, int w, int h);
+ virtual void grab_overlay(OverlayColor *buf, int pitch);
+ virtual void copy_rect_overlay(const OverlayColor *buf, int pitch, int x, int y, int w, int h);
virtual int16 get_height();
virtual int16 get_width();
// Methods that convert RGB to/from colors suitable for the overlay.
- virtual int16 RGBToColor(uint8 r, uint8 g, uint8 b);
- virtual void colorToRGB(int16 color, uint8 &r, uint8 &g, uint8 &b);
+ virtual OverlayColor RGBToColor(uint8 r, uint8 g, uint8 b);
+ virtual void colorToRGB(OverlayColor color, uint8 &r, uint8 &g, uint8 &b);
virtual const GraphicsMode *getSupportedGraphicsModes() const;
@@ -136,6 +139,20 @@ public:
protected:
void init_intern();
+#ifdef USE_OSD
+ SDL_Surface *_osdSurface;
+ Uint8 _osdAlpha; // Transparency level of the OSD
+ uint32 _osdFadeStartTime; // When to start the fade out
+ enum {
+ kOSDFadeOutDelay = 2 * 1000, // Delay before the OSD is faded out (in milliseconds)
+ kOSDFadeOutDuration = 500, // Duration of the OSD fade out (in milliseconds)
+ kOSDColorKey = 1,
+ kOSDInitialAlpha = 80 // Initial alpha level, in percent
+ };
+
+ void displayMessageOnOSD(const char *msg);
+#endif
+
// hardware screen
SDL_Surface *_hwscreen;
@@ -145,7 +162,6 @@ protected:
// temporary screen (for scalers/overlay)
SDL_Surface *_tmpscreen;
- int _tmpScreenWidth;
bool _overlayVisible;
// CD Audio
diff --git a/backends/sdl/sdl.cpp b/backends/sdl/sdl.cpp
index 3a32642aae..e87c661c1b 100644
--- a/backends/sdl/sdl.cpp
+++ b/backends/sdl/sdl.cpp
@@ -56,6 +56,8 @@ void OSystem_SDL::init_intern() {
cksum_valid = false;
_mode = GFX_DOUBLESIZE;
+ _scaleFactor = 2;
+ _scaler_proc = Normal2x;
_full_screen = ConfMan.getBool("fullscreen");
_adjustAspectRatio = ConfMan.getBool("aspect_ratio");
_mode_flags = 0;
@@ -74,8 +76,12 @@ void OSystem_SDL::init_intern() {
}
OSystem_SDL::OSystem_SDL()
- : _hwscreen(0), _screen(0), _screenWidth(0), _screenHeight(0),
- _tmpscreen(0), _tmpScreenWidth(0), _overlayVisible(false),
+ :
+#ifdef USE_OSD
+ _osdSurface(0), _osdAlpha(SDL_ALPHA_TRANSPARENT), _osdFadeStartTime(0),
+#endif
+ _hwscreen(0), _screen(0), _screenWidth(0), _screenHeight(0),
+ _tmpscreen(0), _overlayVisible(false),
_cdrom(0), _scaler_proc(0), _modeChanged(false), _dirty_checksums(0),
_mouseVisible(false), _mouseDrawn(false), _mouseData(0),
_mouseHotspotX(0), _mouseHotspotY(0),
@@ -143,6 +149,19 @@ void OSystem_SDL::setFeatureState(Feature f, bool enable) {
//assert(_hwscreen != 0);
_adjustAspectRatio ^= true;
hotswap_gfx_mode();
+
+#ifdef USE_OSD
+ if (_adjustAspectRatio)
+ displayMessageOnOSD("Enabled aspect ratio correction");
+ else
+ displayMessageOnOSD("Disabled aspect ratio correction");
+#endif
+
+ // Blit everything to the screen
+ internUpdateScreen();
+
+ // Make sure that an EVENT_SCREEN_CHANGED gets sent later
+ _modeChanged = true;
}
break;
case kFeatureAutoComputeDirtyRects:
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 12:26:57 +0000