move SDL shims to a new DFSDL module
Myk Taylor
parent
8e62a46009
commit
4e51e02924
@ -0,0 +1,92 @@
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#pragma once
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#include "Export.h"
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#include "ColorText.h"
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namespace DFHack
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{
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// SDL stand-in type definitions
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typedef signed short SINT16;
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typedef void DFSDL_sem;
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typedef struct
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{
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int16_t x, y;
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uint16_t w, h;
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} DFSDL_Rect;
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typedef struct
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{
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void *palette; // SDL_Palette*
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uint8_t BitsPerPixel;
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uint8_t BytesPerPixel;
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uint8_t Rloss;
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uint8_t Gloss;
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uint8_t Bloss;
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uint8_t Aloss;
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uint8_t Rshift;
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uint8_t Gshift;
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uint8_t Bshift;
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uint8_t Ashift;
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uint32_t Rmask;
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uint32_t Gmask;
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uint32_t Bmask;
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uint32_t Amask;
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uint32_t colorkey;
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uint8_t alpha;
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} DFSDL_PixelFormat;
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typedef struct
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{
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uint32_t flags;
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DFSDL_PixelFormat* format;
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int w, h;
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int pitch;
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void* pixels;
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void* userdata; // as far as i could see DF doesnt use this
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int locked;
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void* lock_data;
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DFSDL_Rect clip_rect;
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void* map;
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int refcount;
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} DFSDL_Surface;
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// =========
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struct DFTileSurface
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{
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bool paintOver; // draw over original tile?
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DFSDL_Surface* surface; // from where it should be drawn
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DFSDL_Rect* rect; // from which coords (NULL to draw whole surface)
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DFSDL_Rect* dstResize; // if not NULL dst rect will be resized (x/y/w/h will be added to original dst)
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};
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/**
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* The DFSDL module - provides access to SDL functions without actually
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* requiring build-time linkage to SDL
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* \ingroup grp_modules
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* \ingroup grp_dfsdl
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*/
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namespace DFSDL
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{
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/**
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* Call this on DFHack init so we can load the SDL functions. Returns false on
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* failure.
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*/
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bool init(DFHack::color_ostream &out);
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/**
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* Call this when DFHack is being unloaded.
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*/
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void cleanup();
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DFHACK_EXPORT DFSDL_Surface * DFIMG_Load(const char *file);
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DFHACK_EXPORT int DFSDL_SetAlpha(DFSDL_Surface *surface, uint32_t flag, uint8_t alpha);
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DFHACK_EXPORT DFSDL_Surface * DFSDL_CreateRGBSurface(uint32_t flags, int width, int height, int depth, uint32_t Rmask, uint32_t Gmask, uint32_t Bmask, uint32_t Amask);
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DFHACK_EXPORT int DFSDL_UpperBlit(DFSDL_Surface *src, const DFSDL_Rect *srcrect, DFSDL_Surface *dst, DFSDL_Rect *dstrect);
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DFHACK_EXPORT DFSDL_Surface * DFSDL_ConvertSurface(DFSDL_Surface *src, const DFSDL_PixelFormat *fmt, uint32_t flags);
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DFHACK_EXPORT void DFSDL_FreeSurface(DFSDL_Surface *surface);
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DFHACK_EXPORT int DFSDL_SemWait(DFSDL_sem *sem);
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DFHACK_EXPORT int DFSDL_SemPost(DFSDL_sem *sem);
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}
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}
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@ -0,0 +1,120 @@
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#include "Internal.h"
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#include "modules/DFSDL.h"
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#include "Debug.h"
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#include "PluginManager.h"
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namespace DFHack {
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DBG_DECLARE(core, dfsdl, DebugCategory::LINFO);
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}
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using namespace DFHack;
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static DFLibrary *g_sdl_handle = nullptr;
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static DFLibrary *g_sdl_image_handle = nullptr;
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static const std::vector<std::string> SDL_LIBS {
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"SDLreal.dll", // TODO: change to SDL.dll once we move to dfhooks
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"SDL.framework/Versions/A/SDL",
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"SDL.framework/SDL",
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"libSDL-1.2.so.0"
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};
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static const std::vector<std::string> SDL_IMAGE_LIBS {
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"SDL_image.dll",
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"SDL_image.framework/Versions/A/SDL_image",
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"SDL_image.framework/SDL_image",
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"libSDL_image-1.2.so.0"
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};
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DFSDL_Surface * (*g_IMG_Load)(const char *) = nullptr;
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int (*g_SDL_SetAlpha)(DFSDL_Surface *, uint32_t, uint8_t) = nullptr;
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DFSDL_Surface * (*g_SDL_CreateRGBSurface)(uint32_t, int, int, int, uint32_t, uint32_t, uint32_t, uint32_t);
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int (*g_SDL_UpperBlit)(DFSDL_Surface *, const DFSDL_Rect *, DFSDL_Surface *, DFSDL_Rect *);
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DFSDL_Surface * (*g_SDL_ConvertSurface)(DFSDL_Surface *, const DFSDL_PixelFormat *, uint32_t);
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void (*g_SDL_FreeSurface)(DFSDL_Surface *);
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int (*g_SDL_SemWait)(DFSDL_sem *);
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int (*g_SDL_SemPost)(DFSDL_sem *);
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bool DFSDL::init(color_ostream &out) {
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for (auto &lib_str : SDL_LIBS) {
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if ((g_sdl_handle = OpenPlugin(lib_str.c_str())))
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break;
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}
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if (!g_sdl_handle) {
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out.printerr("DFHack could not find SDL\n");
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return false;
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}
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for (auto &lib_str : SDL_IMAGE_LIBS) {
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if ((g_sdl_image_handle = OpenPlugin(lib_str.c_str())))
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break;
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}
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if (!g_sdl_image_handle) {
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out.printerr("DFHack could not find SDL_image\n");
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return false;
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}
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#define bind(handle, name) \
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g_##name = (decltype(g_##name))LookupPlugin(handle, #name); \
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if (!g_##name) { \
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out.printerr("DFHack could not find: " #name "\n"); \
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return false; \
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}
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bind(g_sdl_image_handle, IMG_Load);
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bind(g_sdl_handle, SDL_SetAlpha);
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bind(g_sdl_handle, SDL_CreateRGBSurface);
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bind(g_sdl_handle, SDL_UpperBlit);
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bind(g_sdl_handle, SDL_ConvertSurface);
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bind(g_sdl_handle, SDL_FreeSurface);
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bind(g_sdl_handle, SDL_SemWait);
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bind(g_sdl_handle, SDL_SemPost);
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#undef bind
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DEBUG(dfsdl,out).print("sdl successfully loaded\n");
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return true;
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}
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// It's ok to leave NULLs in the raws list (according to usage in g_src)
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void DFSDL::cleanup() {
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if (g_sdl_handle) {
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ClosePlugin(g_sdl_handle);
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g_sdl_handle = nullptr;
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}
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if (g_sdl_image_handle) {
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ClosePlugin(g_sdl_image_handle);
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g_sdl_image_handle = nullptr;
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}
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}
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DFSDL_Surface * DFSDL::DFIMG_Load(const char *file) {
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return g_IMG_Load(file);
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}
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int DFSDL::DFSDL_SetAlpha(DFSDL_Surface *surface, uint32_t flag, uint8_t alpha) {
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return g_SDL_SetAlpha(surface, flag, alpha);
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}
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DFSDL_Surface * DFSDL::DFSDL_CreateRGBSurface(uint32_t flags, int width, int height, int depth, uint32_t Rmask, uint32_t Gmask, uint32_t Bmask, uint32_t Amask) {
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return g_SDL_CreateRGBSurface(flags, width, height, depth, Rmask, Gmask, Bmask, Amask);
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}
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int DFSDL::DFSDL_UpperBlit(DFSDL_Surface *src, const DFSDL_Rect *srcrect, DFSDL_Surface *dst, DFSDL_Rect *dstrect) {
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return g_SDL_UpperBlit(src, srcrect, dst, dstrect);
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}
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DFSDL_Surface * DFSDL::DFSDL_ConvertSurface(DFSDL_Surface *src, const DFSDL_PixelFormat *fmt, uint32_t flags) {
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return g_SDL_ConvertSurface(src, fmt, flags);
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}
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void DFSDL::DFSDL_FreeSurface(DFSDL_Surface *surface) {
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g_SDL_FreeSurface(surface);
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}
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int DFSDL::DFSDL_SemWait(DFSDL_sem *sem) {
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return g_SDL_SemWait(sem);
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}
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int DFSDL::DFSDL_SemPost(DFSDL_sem *sem) {
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return g_SDL_SemPost(sem);
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}
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