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SDL: Move the compatibility functions into SurfaceSdlGraphicsManager

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Cameron Cawley 2020-03-03 17:18:59 +00:00 • committed by Filippos Karapetis
parent 981b771e38
commit 5fd8aed047
4 changed files with 41 additions and 52 deletions
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38
backends/graphics/surfacesdl/surfacesdl-graphics.cpp
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@ -49,6 +49,13 @@
#include "common/text-to-speech.h"
#endif
// SDL surface flags which got removed in SDL2.
#if SDL_VERSION_ATLEAST(2, 0, 0)
#define SDL_SRCCOLORKEY 0
#define SDL_SRCALPHA 0
#define SDL_FULLSCREEN 0x40000000
#endif
static const OSystem::GraphicsMode s_supportedShaders[] = {
{"NONE", "Normal (no shader)", 0},
{0, 0, 0}
@ -2766,6 +2773,37 @@ void SurfaceSdlGraphicsManager::SDL_UpdateRects(SDL_Surface *screen, int numrect
SDL_RenderCopy(_renderer, _screenTexture, NULL, &viewport);
SDL_RenderPresent(_renderer);
}
int SurfaceSdlGraphicsManager::SDL_SetColors(SDL_Surface *surface, SDL_Color *colors, int firstcolor, int ncolors) {
if (surface->format->palette) {
return !SDL_SetPaletteColors(surface->format->palette, colors, firstcolor, ncolors) ? 1 : 0;
} else {
return 0;
}
}
int SurfaceSdlGraphicsManager::SDL_SetAlpha(SDL_Surface *surface, Uint32 flag, Uint8 alpha) {
if (SDL_SetSurfaceAlphaMod(surface, alpha)) {
return -1;
}
if (alpha == 255 || !flag) {
if (SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_NONE)) {
return -1;
}
} else {
if (SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_BLEND)) {
return -1;
}
}
return 0;
}
int SurfaceSdlGraphicsManager::SDL_SetColorKey(SDL_Surface *surface, Uint32 flag, Uint32 key) {
return ::SDL_SetColorKey(surface, SDL_TRUE, key) ? -1 : 0;
}
#endif // SDL_VERSION_ATLEAST(2, 0, 0)
#endif

3
backends/graphics/surfacesdl/surfacesdl-graphics.h
View file

@ -200,6 +200,9 @@ protected:
virtual SDL_Surface *SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags);
virtual void SDL_UpdateRects(SDL_Surface *screen, int numrects, SDL_Rect *rects);
int SDL_SetColors(SDL_Surface *surface, SDL_Color *colors, int firstcolor, int ncolors);
int SDL_SetAlpha(SDL_Surface *surface, Uint32 flag, Uint8 alpha);
int SDL_SetColorKey(SDL_Surface *surface, Uint32 flag, Uint32 key);
#endif
/** Unseen game screen */

19
backends/platform/sdl/sdl-sys.h
View file

@ -274,23 +274,4 @@
#endif // FORBIDDEN_SYMBOL_EXCEPTION_time_h
// SDL 2 has major API changes. We redefine constants which got renamed to
// ease the transition. This is sometimes dangerous because the values changed
// too!
#if SDL_VERSION_ATLEAST(2, 0, 0)
// SDL surface flags which got removed.
#define SDL_SRCCOLORKEY 0
#define SDL_SRCALPHA 0
#define SDL_FULLSCREEN 0x40000000
// Compatibility implementations for removed functionality.
int SDL_SetColors(SDL_Surface *surface, SDL_Color *colors, int firstcolor, int ncolors);
int SDL_SetAlpha(SDL_Surface *surface, Uint32 flag, Uint8 alpha);
#define SDL_SetColorKey SDL_SetColorKey_replacement
int SDL_SetColorKey_replacement(SDL_Surface *surface, Uint32 flag, Uint32 key);
#endif
#endif

33
backends/platform/sdl/sdl.cpp
View file

@ -750,39 +750,6 @@ void OSystem_SDL::setupGraphicsModes() {
}
#endif
#if SDL_VERSION_ATLEAST(2, 0, 0)
int SDL_SetColors(SDL_Surface *surface, SDL_Color *colors, int firstcolor, int ncolors) {
if (surface->format->palette) {
return !SDL_SetPaletteColors(surface->format->palette, colors, firstcolor, ncolors) ? 1 : 0;
} else {
return 0;
}
}
int SDL_SetAlpha(SDL_Surface *surface, Uint32 flag, Uint8 alpha) {
if (SDL_SetSurfaceAlphaMod(surface, alpha)) {
return -1;
}
if (alpha == 255 || !flag) {
if (SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_NONE)) {
return -1;
}
} else {
if (SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_BLEND)) {
return -1;
}
}
return 0;
}
#undef SDL_SetColorKey
int SDL_SetColorKey_replacement(SDL_Surface *surface, Uint32 flag, Uint32 key) {
return SDL_SetColorKey(surface, SDL_TRUE, key) ? -1 : 0;
}
#endif
char *OSystem_SDL::convertEncoding(const char *to, const char *from, const char *string, size_t length) {
#if SDL_VERSION_ATLEAST(1, 2, 10)
int zeroBytes = 1;