diff options
Diffstat (limited to 'engines/wintermute/Base/BSurfaceSDL.cpp')
| -rw-r--r-- | engines/wintermute/Base/BSurfaceSDL.cpp | 480 |
1 files changed, 480 insertions, 0 deletions
diff --git a/engines/wintermute/Base/BSurfaceSDL.cpp b/engines/wintermute/Base/BSurfaceSDL.cpp new file mode 100644 index 0000000000..e4fc48d1e3 --- /dev/null +++ b/engines/wintermute/Base/BSurfaceSDL.cpp @@ -0,0 +1,480 @@ +/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program 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; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+/*
+ * This file is based on WME Lite.
+ * http://dead-code.org/redir.php?target=wmelite
+ * Copyright (c) 2011 Jan Nedoma
+ */
+
+#include "engines/wintermute/dcgf.h"
+#include "engines/wintermute/Base/BFile.h"
+#include "engines/wintermute/Base/BGame.h"
+#include "engines/wintermute/Base/BSurfaceSDL.h"
+#include "engines/wintermute/Base/BRenderSDL.h"
+//#include "SdlUtil.h"
+#include "graphics/decoders/png.h"
+#include "graphics/decoders/bmp.h"
+#include "graphics/pixelformat.h"
+#include "graphics/surface.h"
+#include "engines/wintermute/graphics/transparentSurface.h"
+#include "engines/wintermute/graphics/tga.h"
+#include "common/stream.h"
+#include "engines/wintermute/Base/BFileManager.h"
+#include "engines/wintermute/PlatformSDL.h"
+#include "common/system.h"
+
+namespace WinterMute {
+
+//////////////////////////////////////////////////////////////////////////
+CBSurfaceSDL::CBSurfaceSDL(CBGame *inGame) : CBSurface(inGame) {
+ _surface = new Graphics::Surface();
+ _alphaMask = NULL;
+
+ _lockPixels = NULL;
+ _lockPitch = 0;
+}
+
+//////////////////////////////////////////////////////////////////////////
+CBSurfaceSDL::~CBSurfaceSDL() {
+ //TODO
+ delete _surface;
+#if 0
+ if (_texture) SDL_DestroyTexture(_texture);
+ delete[] _alphaMask;
+ _alphaMask = NULL;
+
+ Game->AddMem(-_width * _height * 4);
+#endif
+}
+
+//////////////////////////////////////////////////////////////////////////
+HRESULT CBSurfaceSDL::Create(const char *Filename, bool default_ck, byte ck_red, byte ck_green, byte ck_blue, int LifeTime, bool KeepLoaded) {
+/* CBRenderSDL *renderer = static_cast<CBRenderSDL *>(Game->_renderer); */
+ Common::String strFileName(Filename);
+
+ Graphics::ImageDecoder *imgDecoder;
+
+ if (strFileName.hasSuffix(".png")) {
+ imgDecoder = new Graphics::PNGDecoder();
+ } else if (strFileName.hasSuffix(".bmp")) {
+ warning("Loaded BMP WITH FILENAME!!!! %s", Filename);
+ imgDecoder = new Graphics::BitmapDecoder();
+ } else if (strFileName.hasSuffix(".tga")) {
+ imgDecoder = new WinterMute::TGA();
+ } else {
+ error("CBSurfaceSDL::Create : Unsupported fileformat %s", Filename);
+ }
+
+ CBFile *file = Game->_fileManager->OpenFile(Filename);
+ if (!file) return E_FAIL;
+
+ imgDecoder->loadStream(*file->getMemStream());
+ const Graphics::Surface *surface = imgDecoder->getSurface();
+ Game->_fileManager->CloseFile(file);
+
+ if (default_ck) {
+ ck_red = 255;
+ ck_green = 0;
+ ck_blue = 255;
+ }
+
+ _width = surface->w;
+ _height = surface->h;
+
+ bool isSaveGameGrayscale = scumm_strnicmp(Filename, "savegame:", 9) == 0 && (Filename[strFileName.size() - 1] == 'g' || Filename[strFileName.size() - 1] == 'G');
+ if (isSaveGameGrayscale) {
+ warning("grayscaleConversion not yet implemented");
+ /* FIBITMAP *newImg = FreeImage_ConvertToGreyscale(img);
+ if (newImg) {
+ FreeImage_Unload(img);
+ img = newImg;
+ }*/
+ }
+
+ // convert 32-bit BMPs to 24-bit or they appear totally transparent (does any app actually write alpha in BMP properly?)
+ /* if (FreeImage_GetBPP(img) != 32 || (imgFormat == FIF_BMP && FreeImage_GetBPP(img) != 24)) {
+ FIBITMAP *newImg = FreeImage_ConvertTo24Bits(img);
+ if (newImg) {
+ FreeImage_Unload(img);
+ img = newImg;
+ } else {
+ FreeImage_Unload(img);
+ return -1;
+ }
+ }
+
+ FreeImage_FlipVertical(img);*/
+
+ //TODO: This is rather endian-specific, but should be replaced by non-SDL-code anyhow:
+/* uint32 rmask = surface->format.rMax() << surface->format.rShift;
+ uint32 gmask = surface->format.gMax() << surface->format.gShift;
+ uint32 bmask = surface->format.bMax() << surface->format.bShift;
+ uint32 amask = surface->format.aMax();*/
+
+// SDL_Surface *surf = SDL_CreateRGBSurfaceFrom(surface->pixels, _width, _height, surface->format.bytesPerPixel * 8, surface->pitch, rmask, gmask, bmask, amask);
+
+ // no alpha, set color key
+ /* if (surface->format.bytesPerPixel != 4)
+ SDL_SetColorKey(surf, SDL_TRUE, SDL_MapRGB(surf->format, ck_red, ck_green, ck_blue));*/
+ if (surface->format.bytesPerPixel == 4 && surface->format != g_system->getScreenFormat()) {
+ _surface = surface->convertTo(g_system->getScreenFormat());
+ } else {
+ _surface = new Graphics::Surface();
+ _surface->copyFrom(*surface);
+ }
+ //SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "best"); //TODO
+ //_texture = SdlUtil::CreateTextureFromSurface(renderer->GetSdlRenderer(), surf);
+
+ // This particular warning is rather messy, as this function is called a ton,
+ // thus we avoid printing it more than once.
+ static bool hasWarned = false;
+ if (!hasWarned) {
+ warning("Surface-textures not fully ported yet");
+ hasWarned = true;
+ }
+#if 0
+ _texture = SDL_CreateTextureFromSurface(renderer->GetSdlRenderer(), surf);
+ if (!_texture) {
+ SDL_FreeSurface(surf);
+ delete imgDecoder;
+ return E_FAIL;
+ }
+
+ GenAlphaMask(surf);
+
+ SDL_FreeSurface(surf);
+ delete imgDecoder; // TODO: Update this if ImageDecoder doesn't end up owning the surface.
+
+ _cKDefault = default_ck;
+ _cKRed = ck_red;
+ _cKGreen = ck_green;
+ _cKBlue = ck_blue;
+#endif
+
+ if (!_filename || scumm_stricmp(_filename, Filename) != 0) {
+ SetFilename(Filename);
+ }
+
+ if (_lifeTime == 0 || LifeTime == -1 || LifeTime > _lifeTime)
+ _lifeTime = LifeTime;
+
+ _keepLoaded = KeepLoaded;
+ if (_keepLoaded) _lifeTime = -1;
+
+ _valid = true;
+#if 0
+ Game->AddMem(_width * _height * 4);
+#endif
+
+ return S_OK;
+}
+
+//////////////////////////////////////////////////////////////////////////
+void CBSurfaceSDL::GenAlphaMask(Graphics::Surface *surface) {
+ warning("CBSurfaceSDL::GenAlphaMask - Not ported yet");
+ return;
+
+ delete[] _alphaMask;
+ _alphaMask = NULL;
+ if (!surface) return;
+#if 0
+ SDL_LockSurface(surface);
+#endif
+ bool hasColorKey;
+ uint32 colorKey;
+ uint8 ckRed, ckGreen, ckBlue;
+ /* if (SDL_GetColorKey(surface, &colorKey) == 0) {
+ hasColorKey = true;
+ SDL_GetRGB(colorKey, surface->format, &ckRed, &ckGreen, &ckBlue);
+ } else hasColorKey = false;
+ */ //TODO
+ _alphaMask = new byte[surface->w * surface->h];
+
+ bool hasTransparency = false;
+ for (int y = 0; y < surface->h; y++) {
+ for (int x = 0; x < surface->w; x++) {
+ uint32 pixel = GetPixel(surface, x, y);
+
+ uint8 r, g, b, a;
+ surface->format.colorToARGB(pixel, a, r, g, b);
+ //SDL_GetRGBA(pixel, surface->format, &r, &g, &b, &a);
+
+ if (hasColorKey && r == ckRed && g == ckGreen && b == ckBlue)
+ a = 0;
+
+ _alphaMask[y * surface->w + x] = a;
+ if (a < 255) hasTransparency = true;
+ }
+ }
+#if 0
+ SDL_UnlockSurface(surface);
+#endif
+ if (!hasTransparency) {
+ delete[] _alphaMask;
+ _alphaMask = NULL;
+ }
+}
+
+//////////////////////////////////////////////////////////////////////////
+uint32 CBSurfaceSDL::GetPixel(Graphics::Surface *surface, int x, int y) {
+ warning("CBSurfaceSDL::GetPixel - Not ported yet");
+ int bpp = surface->format.bytesPerPixel;
+ /* Here p is the address to the pixel we want to retrieve */
+ uint8 *p = (uint8 *)surface->pixels + y * surface->pitch + x * bpp;
+
+ switch (bpp) {
+ case 1:
+ return *p;
+ break;
+
+ case 2:
+ return *(uint16 *)p;
+ break;
+
+ case 3:
+#ifdef SCUMM_BIG_ENDIAN
+ // if (SDL_BYTEORDER == SDL_BIG_ENDIAN)
+ return p[0] << 16 | p[1] << 8 | p[2];
+#else
+ //else
+ return p[0] | p[1] << 8 | p[2] << 16;
+#endif
+ break;
+
+ case 4:
+ return *(uint32 *)p;
+ break;
+
+ default:
+ return 0; /* shouldn't happen, but avoids warnings */
+ }
+ return 0;
+}
+
+//////////////////////////////////////////////////////////////////////////
+HRESULT CBSurfaceSDL::Create(int Width, int Height) {
+ warning("SurfaceSDL::Create not ported yet"); //TODO
+#if 0
+ CBRenderSDL *renderer = static_cast<CBRenderSDL *>(Game->_renderer);
+ _texture = SDL_CreateTexture(renderer->GetSdlRenderer(), SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, Width, Height);
+#endif
+ _width = Width;
+ _height = Height;
+#if 0
+ Game->AddMem(_width * _height * 4);
+#endif
+ _valid = true;
+
+ return S_OK;
+}
+
+//////////////////////////////////////////////////////////////////////////
+HRESULT CBSurfaceSDL::CreateFromSDLSurface(Graphics::Surface *surface) {
+ warning("CBSurfaceSDL::CreateFromSDLSurface not ported yet"); //TODO
+#if 0
+ CBRenderSDL *renderer = static_cast<CBRenderSDL *>(Game->_renderer);
+ _texture = SDL_CreateTextureFromSurface(renderer->GetSdlRenderer(), surface);
+#endif
+ if (_surface) {
+ _surface->free();
+ delete _surface;
+ _surface = NULL;
+ }
+ _surface = new Graphics::Surface();
+ _surface->copyFrom(*surface);
+ _width = surface->w;
+ _height = surface->h;
+#if 0
+ Game->AddMem(_width * _height * 4);
+#endif
+ _valid = true;
+
+ return S_OK;
+}
+
+//////////////////////////////////////////////////////////////////////////
+bool CBSurfaceSDL::IsTransparentAt(int X, int Y) {
+ // This particular warning is rather messy, as this function is called a ton,
+ // thus we avoid printing it more than once.
+ static bool hasWarned = false;
+ if (!hasWarned) {
+ warning("CBSurfaceSDL::IsTransparentAt not ported yet");
+ hasWarned = true;
+ }
+#if 0
+ int access;
+ int width, height;
+ //SDL_QueryTexture(_texture, NULL, &access, &width, &height); //TODO
+ //if (access != SDL_TEXTUREACCESS_STREAMING) return false;
+ if (X < 0 || X >= width || Y < 0 || Y >= height) return true;
+
+
+ StartPixelOp();
+ bool ret = IsTransparentAtLite(X, Y);
+ EndPixelOp();
+
+ return ret;
+#endif
+ return 0;
+}
+
+//////////////////////////////////////////////////////////////////////////
+bool CBSurfaceSDL::IsTransparentAtLite(int X, int Y) {
+ //if (!_lockPixels) return false;
+
+ // This particular warning is rather messy, as this function is called a ton,
+ // thus we avoid printing it more than once.
+ static bool hasWarned = false;
+ if (!hasWarned) {
+ warning("CBSurfaceSDL::IsTransparentAtLite not ported yet");
+ hasWarned = true;
+ }
+#if 0
+ uint32 format;
+ int access;
+ int width, height;
+
+ //SDL_QueryTexture(_texture, &format, &access, &width, &height);
+ //if (access != SDL_TEXTUREACCESS_STREAMING) return false;
+ if (X < 0 || X >= width || Y < 0 || Y >= height) return true;
+
+ if (!_alphaMask) return false;
+ else return _alphaMask[Y * width + X] <= 128;
+#endif
+ return false;
+ /*
+ Uint32* dst = (Uint32*)((Uint8*)_lockPixels + Y * _lockPitch);
+ Uint32 pixel = dst[X];
+
+ SDL_PixelFormat* pixelFormat = SDL_AllocFormat(format);
+ Uint8 r, g, b, a;
+ SDL_GetRGBA(pixel, pixelFormat, &r, &g, &b, &a);
+ SDL_FreeFormat(pixelFormat);
+
+ return a <= 128;
+ */
+}
+
+//////////////////////////////////////////////////////////////////////////
+HRESULT CBSurfaceSDL::StartPixelOp() {
+ //SDL_LockTexture(_texture, NULL, &_lockPixels, &_lockPitch);
+ return S_OK;
+}
+
+//////////////////////////////////////////////////////////////////////////
+HRESULT CBSurfaceSDL::EndPixelOp() {
+ //SDL_UnlockTexture(_texture);
+ return S_OK;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+HRESULT CBSurfaceSDL::Display(int X, int Y, RECT rect, TSpriteBlendMode BlendMode, bool MirrorX, bool MirrorY) {
+ return DrawSprite(X, Y, &rect, 100, 100, 0xFFFFFFFF, true, BlendMode, MirrorX, MirrorY);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+HRESULT CBSurfaceSDL::DisplayTrans(int X, int Y, RECT rect, uint32 Alpha, TSpriteBlendMode BlendMode, bool MirrorX, bool MirrorY) {
+ return DrawSprite(X, Y, &rect, 100, 100, Alpha, false, BlendMode, MirrorX, MirrorY);
+}
+
+//////////////////////////////////////////////////////////////////////////
+HRESULT CBSurfaceSDL::DisplayTransOffset(int X, int Y, RECT rect, uint32 Alpha, TSpriteBlendMode BlendMode, bool MirrorX, bool MirrorY, int offsetX, int offsetY) {
+ return DrawSprite(X, Y, &rect, 100, 100, Alpha, false, BlendMode, MirrorX, MirrorY, offsetX, offsetY);
+}
+
+//////////////////////////////////////////////////////////////////////////
+HRESULT CBSurfaceSDL::DisplayTransZoom(int X, int Y, RECT rect, float ZoomX, float ZoomY, uint32 Alpha, TSpriteBlendMode BlendMode, bool MirrorX, bool MirrorY) {
+ return DrawSprite(X, Y, &rect, ZoomX, ZoomY, Alpha, false, BlendMode, MirrorX, MirrorY);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+HRESULT CBSurfaceSDL::DisplayZoom(int X, int Y, RECT rect, float ZoomX, float ZoomY, uint32 Alpha, bool Transparent, TSpriteBlendMode BlendMode, bool MirrorX, bool MirrorY) {
+ return DrawSprite(X, Y, &rect, ZoomX, ZoomY, Alpha, !Transparent, BlendMode, MirrorX, MirrorY);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+HRESULT CBSurfaceSDL::DisplayTransform(int X, int Y, int HotX, int HotY, RECT Rect, float ZoomX, float ZoomY, uint32 Alpha, float Rotate, TSpriteBlendMode BlendMode, bool MirrorX, bool MirrorY) {
+ return DrawSprite(X, Y, &Rect, ZoomX, ZoomY, Alpha, false, BlendMode, MirrorX, MirrorY);
+}
+
+//////////////////////////////////////////////////////////////////////////
+HRESULT CBSurfaceSDL::DrawSprite(int X, int Y, RECT *Rect, float ZoomX, float ZoomY, uint32 Alpha, bool AlphaDisable, TSpriteBlendMode BlendMode, bool MirrorX, bool MirrorY, int offsetX, int offsetY) {
+ CBRenderSDL *renderer = static_cast<CBRenderSDL *>(Game->_renderer);
+
+ if (renderer->_forceAlphaColor != 0) Alpha = renderer->_forceAlphaColor;
+
+ // This particular warning is rather messy, as this function is called a ton,
+ // thus we avoid printing it more than once.
+ static bool hasWarned = false;
+ if (!hasWarned) {
+ warning("CBSurfaceSDL::DrawSprite not fully ported yet"); // TODO.
+ hasWarned = true;
+ }
+#if 0
+ byte r = D3DCOLGetR(Alpha);
+ byte g = D3DCOLGetG(Alpha);
+ byte b = D3DCOLGetB(Alpha);
+ byte a = D3DCOLGetA(Alpha);
+
+ SDL_SetTextureColorMod(_texture, r, g, b);
+ SDL_SetTextureAlphaMod(_texture, a);
+
+ if (AlphaDisable)
+ SDL_SetTextureBlendMode(_texture, SDL_BLENDMODE_NONE);
+ else
+ SDL_SetTextureBlendMode(_texture, SDL_BLENDMODE_BLEND);
+#endif
+ // TODO: This _might_ miss the intended behaviour by 1 in each direction
+ // But I think it fits the model used in Wintermute.
+ Common::Rect srcRect;
+ srcRect.left = Rect->left;
+ srcRect.top = Rect->top;
+ srcRect.setWidth(Rect->right - Rect->left);
+ srcRect.setHeight(Rect->bottom - Rect->top);
+
+ Common::Rect position;
+ position.left = X;
+ position.top = Y;
+ // TODO: Scaling...
+
+ position.setWidth((float)srcRect.width() * ZoomX / 100.f);
+ position.setHeight((float)srcRect.height() * ZoomX / 100.f);
+
+ renderer->ModTargetRect(&position);
+
+ position.left += offsetX;
+ position.top += offsetY;
+
+ renderer->drawFromSurface(_surface, &srcRect, &position);
+#if 0
+ SDL_RenderCopy(renderer->GetSdlRenderer(), _texture, &srcRect, &position);
+#endif
+
+ return S_OK;
+}
+
+} // end of namespace WinterMute
|