diff options
author | Andrei Karas <akaras@inbox.ru> | 2013-08-31 20:38:42 +0300 |
---|---|---|
committer | Andrei Karas <akaras@inbox.ru> | 2013-08-31 20:38:42 +0300 |
commit | b310c51796d1632aeefc834dc0e931c52f909a41 (patch) | |
tree | 1332b627664b8450cc3fdbbd2995ce0ffc67b724 /src/sdlgraphics.cpp | |
parent | 07c2392f2a7a7fa90d1c0dfe97dbd3bf29fdfad1 (diff) | |
download | manaverse-b310c51796d1632aeefc834dc0e931c52f909a41.tar.gz manaverse-b310c51796d1632aeefc834dc0e931c52f909a41.tar.bz2 manaverse-b310c51796d1632aeefc834dc0e931c52f909a41.tar.xz manaverse-b310c51796d1632aeefc834dc0e931c52f909a41.zip |
move render classes into render dir.
Diffstat (limited to 'src/sdlgraphics.cpp')
-rw-r--r-- | src/sdlgraphics.cpp | 1272 |
1 files changed, 0 insertions, 1272 deletions
diff --git a/src/sdlgraphics.cpp b/src/sdlgraphics.cpp deleted file mode 100644 index 084a0db34..000000000 --- a/src/sdlgraphics.cpp +++ /dev/null @@ -1,1272 +0,0 @@ -/* - * The ManaPlus Client - * Copyright (C) 2004-2009 The Mana World Development Team - * Copyright (C) 2009-2010 The Mana Developers - * Copyright (C) 2011-2013 The ManaPlus Developers - * - * This file is part of The ManaPlus Client. - * - * 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 - * 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, see <http://www.gnu.org/licenses/>. - */ - -#ifndef USE_SDL2 - -#include "sdlgraphics.h" - -#include "main.h" - -#include "configuration.h" -#include "graphicsmanager.h" -#include "graphicsvertexes.h" -#include "logger.h" - -#include "resources/imagehelper.h" - -#include "utils/sdlcheckutils.h" - -#include <guichan/sdl/sdlpixel.hpp> - -#include "debug.h" - -#if SDL_BYTEORDER == SDL_LIL_ENDIAN -static unsigned int *cR = nullptr; -static unsigned int *cG = nullptr; -static unsigned int *cB = nullptr; -#endif - -SDLGraphics::SDLGraphics() : - Graphics(), - mOldPixel(0), - mOldAlpha(0) -{ -} - -SDLGraphics::~SDLGraphics() -{ -} - -bool SDLGraphics::drawRescaledImage(const Image *const image, - int srcX, int srcY, - int dstX, int dstY, - const int width, const int height, - const int desiredWidth, - const int desiredHeight, - const bool useColor A_UNUSED) -{ - FUNC_BLOCK("Graphics::drawRescaledImage", 1) - // Check that preconditions for blitting are met. - if (!mWindow || !image) - return false; - if (!image->mSDLSurface) - return false; - - Image *const tmpImage = image->SDLgetScaledImage( - desiredWidth, desiredHeight); - - if (!tmpImage) - return false; - if (!tmpImage->mSDLSurface) - return false; - - const gcn::ClipRectangle &top = mClipStack.top(); - const SDL_Rect &bounds = image->mBounds; - - SDL_Rect srcRect = - { - static_cast<int16_t>(srcX + bounds.x), - static_cast<int16_t>(srcY + bounds.y), - static_cast<uint16_t>(width), - static_cast<uint16_t>(height) - }; - - SDL_Rect dstRect = - { - static_cast<int16_t>(dstX + top.xOffset), - static_cast<int16_t>(dstY + top.yOffset), - 0, - 0 - }; - - const bool returnValue = !(SDL_BlitSurface(tmpImage->mSDLSurface, - &srcRect, mWindow, &dstRect) < 0); - - delete tmpImage; - - return returnValue; -} - -bool SDLGraphics::drawImage2(const Image *const image, int srcX, int srcY, - int dstX, int dstY, const int width, - const int height, const bool useColor A_UNUSED) -{ - FUNC_BLOCK("Graphics::drawImage2", 1) - // Check that preconditions for blitting are met. - if (!mWindow || !image || !image->mSDLSurface) - return false; - - const gcn::ClipRectangle &top = mClipStack.top(); - const SDL_Rect &bounds = image->mBounds; - - - SDL_Surface *const src = image->mSDLSurface; - - srcX += bounds.x; - srcY += bounds.y; - dstX += top.xOffset; - dstY += top.yOffset; - - int w = width; - int h = height; - if (srcX < 0) - { - w += srcX; - dstX -= static_cast<int16_t>(srcX); - srcX = 0; - } - const int maxw = src->w - srcX; - if (maxw < w) - w = maxw; - - if (srcY < 0) - { - h += srcY; - dstY -= static_cast<int16_t>(srcY); - srcY = 0; - } - const int maxh = src->h - srcY; - if (maxh < h) - h = maxh; - - const SDL_Rect *const clip = &mWindow->clip_rect; - const int clipX = clip->x; - const int clipY = clip->y; - int dx = clipX - dstX; - if (dx > 0) - { - w -= dx; - dstX += static_cast<int16_t>(dx); - srcX += dx; - } - dx = dstX + w - clipX - clip->w; - if (dx > 0) - w -= dx; - - int dy = clipY - dstY; - if (dy > 0) - { - h -= dy; - dstY += static_cast<int16_t>(dy); - srcY += dy; - } - dy = dstY + h - clipY - clip->h; - if (dy > 0) - h -= dy; - - if (w > 0 && h > 0) - { - SDL_Rect srcRect = - { - static_cast<int16_t>(srcX), - static_cast<int16_t>(srcY), - static_cast<uint16_t>(w), - static_cast<uint16_t>(h) - }; - - SDL_Rect dstRect = - { - static_cast<int16_t>(dstX), - static_cast<int16_t>(dstY), - static_cast<uint16_t>(w), - static_cast<uint16_t>(h) - }; - - return SDL_LowerBlit(src, &srcRect, mWindow, &dstRect); - } - return 0; -} - -void SDLGraphics::drawImagePattern(const Image *const image, - const int x, const int y, - const int w, const int h) -{ - FUNC_BLOCK("Graphics::drawImagePattern", 1) - // Check that preconditions for blitting are met. - if (!mWindow || !image) - return; - if (!image->mSDLSurface) - return; - - const SDL_Rect &bounds = image->mBounds; - const int iw = bounds.w; - const int ih = bounds.h; - if (iw == 0 || ih == 0) - return; - - const gcn::ClipRectangle &top = mClipStack.top(); - const int xOffset = top.xOffset + x; - const int yOffset = top.yOffset + y; - const int srcX = bounds.x; - const int srcY = bounds.y; - SDL_Surface *const src = image->mSDLSurface; - const SDL_Rect *const clip = &mWindow->clip_rect; - const int clipX = clip->x; - const int clipY = clip->y; - - for (int py = 0; py < h; py += ih) - { - const int dh = (py + ih >= h) ? h - py : ih; - int dstY = py + yOffset; - int y2 = srcY; - int h2 = dh; - if (y2 < 0) - { - h2 += y2; - dstY -= static_cast<int16_t>(y2); - y2 = 0; - } - const int maxh = src->h - y2; - if (maxh < h2) - h2 = maxh; - - int dy = clipY - dstY; - if (dy > 0) - { - h2 -= dy; - dstY += static_cast<int16_t>(dy); - y2 += dy; - } - dy = dstY + h2 - clipY - clip->h; - if (dy > 0) - h2 -= dy; - - if (h2 > 0) - { - for (int px = 0; px < w; px += iw) - { - const int dw = (px + iw >= w) ? w - px : iw; - int dstX = px + xOffset; - int x2 = srcX; - int w2 = dw; - if (x2 < 0) - { - w2 += x2; - dstX -= static_cast<int16_t>(x2); - x2 = 0; - } - const int maxw = src->w - x2; - if (maxw < w2) - w2 = maxw; - - int dx = clipX - dstX; - if (dx > 0) - { - w2 -= dx; - dstX += static_cast<int16_t>(dx); - x2 += dx; - } - dx = dstX + w2 - clipX - clip->w; - if (dx > 0) - w2 -= dx; - - if (w2 > 0) - { - SDL_Rect srcRect = - { - static_cast<int16_t>(x2), - static_cast<int16_t>(y2), - static_cast<uint16_t>(w2), - static_cast<uint16_t>(h2) - }; - - SDL_Rect dstRect = - { - static_cast<int16_t>(dstX), - static_cast<int16_t>(dstY), - static_cast<uint16_t>(w2), - static_cast<uint16_t>(h2) - }; - - SDL_LowerBlit(src, &srcRect, mWindow, &dstRect); - } - -// SDL_BlitSurface(image->mSDLSurface, &srcRect, mWindow, &dstRect); - } - } - } -} - -void SDLGraphics::drawRescaledImagePattern(const Image *const image, - const int x, const int y, - const int w, const int h, - const int scaledWidth, - const int scaledHeight) -{ - // Check that preconditions for blitting are met. - if (!mWindow || !image) - return; - if (!image->mSDLSurface) - return; - - if (scaledHeight == 0 || scaledWidth == 0) - return; - - Image *const tmpImage = image->SDLgetScaledImage( - scaledWidth, scaledHeight); - if (!tmpImage) - return; - - const SDL_Rect &bounds = tmpImage->mBounds; - const int iw = bounds.w; - const int ih = bounds.h; - if (iw == 0 || ih == 0) - return; - - const gcn::ClipRectangle &top = mClipStack.top(); - const int xOffset = top.xOffset + x; - const int yOffset = top.yOffset + y; - const int srcX = bounds.x; - const int srcY = bounds.y; - - for (int py = 0; py < h; py += ih) // Y position on pattern plane - { - const int dh = (py + ih >= h) ? h - py : ih; - const int dstY = py + yOffset; - - for (int px = 0; px < w; px += iw) // X position on pattern plane - { - const int dw = (px + iw >= w) ? w - px : iw; - const int dstX = px + xOffset; - - SDL_Rect srcRect = - { - static_cast<int16_t>(srcX), - static_cast<int16_t>(srcY), - static_cast<uint16_t>(dw), - static_cast<uint16_t>(dh) - }; - - SDL_Rect dstRect = - { - static_cast<int16_t>(dstX), - static_cast<int16_t>(dstY), - 0, - 0 - }; - - SDL_BlitSurface(tmpImage->mSDLSurface, &srcRect, - mWindow, &dstRect); - } - } - - delete tmpImage; -} - -void SDLGraphics::calcImagePattern(ImageVertexes* const vert, - const Image *const image, - const int x, const int y, - const int w, const int h) const -{ - // Check that preconditions for blitting are met. - if (!vert || !mWindow || !image || !image->mSDLSurface) - return; - - const SDL_Rect &bounds = image->mBounds; - const int iw = bounds.w; - const int ih = bounds.h; - if (iw == 0 || ih == 0) - return; - - const gcn::ClipRectangle &top = mClipStack.top(); - const int xOffset = top.xOffset + x; - const int yOffset = top.yOffset + y; - const int srcX = bounds.x; - const int srcY = bounds.y; - - for (int py = 0; py < h; py += ih) // Y position on pattern plane - { - const int dh = (py + ih >= h) ? h - py : ih; - const int dstY = py + yOffset; - - for (int px = 0; px < w; px += iw) // X position on pattern plane - { - const int dw = (px + iw >= w) ? w - px : iw; - const int dstX = px + xOffset; - - DoubleRect *const r = new DoubleRect(); - SDL_Rect &srcRect = r->src; - srcRect.x = static_cast<int16_t>(srcX); - srcRect.y = static_cast<int16_t>(srcY); - srcRect.w = static_cast<uint16_t>(dw); - srcRect.h = static_cast<uint16_t>(dh); - SDL_Rect &dstRect = r->dst; - dstRect.x = static_cast<int16_t>(dstX); - dstRect.y = static_cast<int16_t>(dstY); - - if (SDL_FakeUpperBlit(image->mSDLSurface, &srcRect, - mWindow, &dstRect) == 1) - { - vert->sdl.push_back(r); - } - else - { - delete r; - } - } - } -} - -void SDLGraphics::calcImagePattern(ImageCollection* const vertCol, - const Image *const image, - const int x, const int y, - const int w, const int h) const -{ - ImageVertexes *vert = nullptr; - if (vertCol->currentImage != image) - { - vert = new ImageVertexes(); - vertCol->currentImage = image; - vertCol->currentVert = vert; - vert->image = image; - vertCol->draws.push_back(vert); - } - else - { - vert = vertCol->currentVert; - } - - calcImagePattern(vert, image, x, y, w, h); -} - -void SDLGraphics::calcTile(ImageVertexes *const vert, - const Image *const image, - int x, int y) const -{ - vert->image = image; - calcTileSDL(vert, x, y); -} - -void SDLGraphics::calcTileSDL(ImageVertexes *const vert, int x, int y) const -{ - // Check that preconditions for blitting are met. - if (!vert || !vert->image || !vert->image->mSDLSurface) - return; - - const Image *const image = vert->image; - const gcn::ClipRectangle &top = mClipStack.top(); - const SDL_Rect &bounds = image->mBounds; - - DoubleRect *rect = new DoubleRect(); - rect->src.x = static_cast<int16_t>(bounds.x); - rect->src.y = static_cast<int16_t>(bounds.y); - rect->src.w = static_cast<uint16_t>(bounds.w); - rect->src.h = static_cast<uint16_t>(bounds.h); - rect->dst.x = static_cast<int16_t>(x + top.xOffset); - rect->dst.y = static_cast<int16_t>(y + top.yOffset); - if (SDL_FakeUpperBlit(image->mSDLSurface, &rect->src, - mWindow, &rect->dst) == 1) - { - vert->sdl.push_back(rect); - } - else - { - delete rect; - } -} - -void SDLGraphics::calcTile(ImageCollection *const vertCol, - const Image *const image, - int x, int y) -{ - if (vertCol->currentImage != image) - { - ImageVertexes *const vert = new ImageVertexes(); - vertCol->currentImage = image; - vertCol->currentVert = vert; - vert->image = image; - vertCol->draws.push_back(vert); - calcTileSDL(vert, x, y); - } - else - { - calcTileSDL(vertCol->currentVert, x, y); - } -} - -void SDLGraphics::drawTile(const ImageCollection *const vertCol) -{ - const ImageVertexesVector &draws = vertCol->draws; - const ImageCollectionCIter it_end = draws.end(); - for (ImageCollectionCIter it = draws.begin(); it != it_end; ++ it) - { - const ImageVertexes *const vert = *it; - const Image *const img = vert->image; - const DoubleRects *const rects = &vert->sdl; - DoubleRects::const_iterator it2 = rects->begin(); - const DoubleRects::const_iterator it2_end = rects->end(); - while (it2 != it2_end) - { - SDL_LowerBlit(img->mSDLSurface, &(*it2)->src, - mWindow, &(*it2)->dst); - ++ it2; - } - } -} - -void SDLGraphics::drawTile(const ImageVertexes *const vert) -{ - // vert and img must be != 0 - const Image *const img = vert->image; - const DoubleRects *const rects = &vert->sdl; - DoubleRects::const_iterator it = rects->begin(); - const DoubleRects::const_iterator it_end = rects->end(); - while (it != it_end) - { - SDL_LowerBlit(img->mSDLSurface, &(*it)->src, mWindow, &(*it)->dst); - ++ it; - } -} - -void SDLGraphics::updateScreen() -{ - BLOCK_START("Graphics::updateScreen") - if (mDoubleBuffer) - { - SDL_Flip(mWindow); - } - else - { - SDL_UpdateRects(mWindow, 1, &mRect); -// SDL_UpdateRect(mWindow, 0, 0, 0, 0); - } - BLOCK_END("Graphics::updateScreen") -} - -SDL_Surface *SDLGraphics::getScreenshot() -{ -#if SDL_BYTEORDER == SDL_BIG_ENDIAN - const int rmask = 0xff000000; - const int gmask = 0x00ff0000; - const int bmask = 0x0000ff00; -#else - const int rmask = 0x000000ff; - const int gmask = 0x0000ff00; - const int bmask = 0x00ff0000; -#endif - const int amask = 0x00000000; - - SDL_Surface *const screenshot = MSDL_CreateRGBSurface(SDL_SWSURFACE, - mRect.w, mRect.h, 24, rmask, gmask, bmask, amask); - - if (screenshot) - SDL_BlitSurface(mWindow, nullptr, screenshot, nullptr); - - return screenshot; -} - -bool SDLGraphics::drawNet(const int x1, const int y1, - const int x2, const int y2, - const int width, const int height) -{ - for (int y = y1; y < y2; y += height) - drawLine(x1, y, x2, y); - - for (int x = x1; x < x2; x += width) - drawLine(x, y1, x, y2); - - return true; -} - -bool SDLGraphics::calcWindow(ImageCollection *const vertCol, - const int x, const int y, - const int w, const int h, - const ImageRect &imgRect) -{ - ImageVertexes *vert = nullptr; - Image *const image = imgRect.grid[4]; - if (vertCol->currentImage != image) - { - vert = new ImageVertexes(); - vertCol->currentImage = image; - vertCol->currentVert = vert; - vert->image = image; - vertCol->draws.push_back(vert); - } - else - { - vert = vertCol->currentVert; - } - - const Image *const *const grid = &imgRect.grid[0]; - return calcImageRect(vert, x, y, w, h, - grid[0], grid[2], grid[6], grid[8], - grid[1], grid[5], grid[7], grid[3], - grid[4]); -} - -int SDLGraphics::SDL_FakeUpperBlit(const SDL_Surface *const src, - SDL_Rect *const srcrect, - const SDL_Surface *const dst, - SDL_Rect *dstrect) const -{ - int srcx, srcy, w, h; - - // Make sure the surfaces aren't locked - if (!src || !dst) - return -1; - - if (!srcrect || !dstrect) - return -1; - - srcx = srcrect->x; - w = srcrect->w; - if (srcx < 0) - { - w += srcx; - dstrect->x -= static_cast<int16_t>(srcx); - srcx = 0; - } - int maxw = src->w - srcx; - if (maxw < w) - w = maxw; - - srcy = srcrect->y; - h = srcrect->h; - if (srcy < 0) - { - h += srcy; - dstrect->y -= static_cast<int16_t>(srcy); - srcy = 0; - } - int maxh = src->h - srcy; - if (maxh < h) - h = maxh; - - const SDL_Rect *const clip = &dst->clip_rect; - const int clipX = clip->x; - const int clipY = clip->y; - int dx = clipX - dstrect->x; - if (dx > 0) - { - w -= dx; - dstrect->x += static_cast<int16_t>(dx); - srcx += dx; - } - dx = dstrect->x + w - clipX - clip->w; - if (dx > 0) - w -= dx; - - int dy = clipY - dstrect->y; - if (dy > 0) - { - h -= dy; - dstrect->y += static_cast<int16_t>(dy); - srcy += dy; - } - dy = dstrect->y + h - clipY - clip->h; - if (dy > 0) - h -= dy; - - if (w > 0 && h > 0) - { - if (srcrect) - { - srcrect->x = static_cast<int16_t>(srcx); - srcrect->y = static_cast<int16_t>(srcy); - srcrect->w = static_cast<int16_t>(w); - srcrect->h = static_cast<int16_t>(h); - } - dstrect->w = static_cast<int16_t>(w); - dstrect->h = static_cast<int16_t>(h); - - return 1; -// return SDL_LowerBlit(src, &sr, dst, dstrect); - } - dstrect->w = dstrect->h = 0; - return 0; -} - -void SDLGraphics::fillRectangle(const gcn::Rectangle& rectangle) -{ - FUNC_BLOCK("Graphics::fillRectangle", 1) - if (mClipStack.empty()) - return; - - const gcn::ClipRectangle& top = mClipStack.top(); - - gcn::Rectangle area = rectangle; - area.x += top.xOffset; - area.y += top.yOffset; - - if (!area.isIntersecting(top)) - return; - - if (mAlpha) - { - const int x1 = area.x > top.x ? area.x : top.x; - const int y1 = area.y > top.y ? area.y : top.y; - const int x2 = area.x + area.width < top.x + top.width ? - area.x + area.width : top.x + top.width; - const int y2 = area.y + area.height < top.y + top.height ? - area.y + area.height : top.y + top.height; - int x, y; - - SDL_LockSurface(mWindow); - - const int bpp = mWindow->format->BytesPerPixel; - const uint32_t pixel = SDL_MapRGB(mWindow->format, - static_cast<uint8_t>(mColor.r), static_cast<uint8_t>(mColor.g), - static_cast<uint8_t>(mColor.b)); - - switch (bpp) - { - case 1: - for (y = y1; y < y2; y++) - { - uint8_t *const p = static_cast<uint8_t *>(mWindow->pixels) - + y * mWindow->pitch; - for (x = x1; x < x2; x++) - *(p + x) = static_cast<uint8_t>(pixel); - } - break; - case 2: - for (y = y1; y < y2; y++) - { - uint8_t *const p0 = static_cast<uint8_t *>(mWindow->pixels) - + y * mWindow->pitch; - for (x = x1; x < x2; x++) - { - uint8_t *const p = p0 + x * 2; - *reinterpret_cast<uint16_t *>(p) = gcn::SDLAlpha16( - static_cast<uint16_t>(pixel), - *reinterpret_cast<uint16_t *>(p), - static_cast<uint8_t>(mColor.a), mWindow->format); - } - } - break; - case 3: - { - const int ca = 255 - mColor.a; - const int cr = mColor.r * mColor.a; - const int cg = mColor.g * mColor.a; - const int cb = mColor.b * mColor.a; - - for (y = y1; y < y2; y++) - { - uint8_t *const p0 = static_cast<uint8_t *>(mWindow->pixels) - + y * mWindow->pitch; - for (x = x1; x < x2; x++) - { - uint8_t *const p = p0 + x * 3; -#if SDL_BYTEORDER == SDL_BIG_ENDIAN - p[2] = static_cast<uint8_t>((p[2] * ca + cb) >> 8); - p[1] = static_cast<uint8_t>((p[1] * ca + cg) >> 8); - p[0] = static_cast<uint8_t>((p[0] * ca + cr) >> 8); -#else - p[0] = static_cast<uint8_t>((p[0] * ca + cb) >> 8); - p[1] = static_cast<uint8_t>((p[1] * ca + cg) >> 8); - p[2] = static_cast<uint8_t>((p[2] * ca + cr) >> 8); -#endif - } - } - break; - } - case 4: - { -#if SDL_BYTEORDER == SDL_BIG_ENDIAN - const unsigned pb = (pixel & 0xff) * mColor.a; - const unsigned pg = (pixel & 0xff00) * mColor.a; - const unsigned pr = (pixel & 0xff0000) * mColor.a; - const unsigned a1 = (255 - mColor.a); - - for (y = y1; y < y2; y++) - { - uint8_t *const p0 = static_cast<uint8_t *>(mWindow->pixels) - + y * mWindow->pitch; - for (x = x1; x < x2; x++) - { - uint8_t *p = p0 + x * 4; - uint32_t dst = *reinterpret_cast<uint32_t *>(p); - const unsigned int b = (pb + (dst & 0xff) * a1) >> 8; - const unsigned int g = (pg + (dst & 0xff00) * a1) >> 8; - const unsigned int r = (pr - + (dst & 0xff0000) * a1) >> 8; - - *reinterpret_cast<uint32_t *>(p) = ((b & 0xff) - | (g & 0xff00) | (r & 0xff0000)); - } - } -#else - if (!cR) - { - cR = new unsigned int[0x100]; - cG = new unsigned int[0x100]; - cB = new unsigned int[0x100]; - mOldPixel = 0; - mOldAlpha = mColor.a; - } - - const SDL_PixelFormat * const format = mWindow->format; - const unsigned rMask = format->Rmask; - const unsigned gMask = format->Gmask; - const unsigned bMask = format->Bmask; -// const unsigned aMask = format->Amask; - unsigned rShift = rMask / 0xff; - unsigned gShift = gMask / 0xff; - unsigned bShift = bMask / 0xff; - if (!rShift) - rShift = 1; - if (!gShift) - gShift = 1; - if (!bShift) - bShift = 1; - if (pixel != mOldPixel || mColor.a != mOldAlpha) - { - const unsigned pb = (pixel & bMask) * mColor.a; - const unsigned pg = (pixel & gMask) * mColor.a; - const unsigned pr = (pixel & rMask) * mColor.a; - const unsigned a0 = (255 - mColor.a); - - const unsigned int a1 = a0 * bShift; - const unsigned int a2 = a0 * gShift; - const unsigned int a3 = a0 * rShift; - - for (int f = 0; f <= 0xff; f ++) - { - cB[f] = ((pb + f * a1) >> 8) & bMask; - cG[f] = ((pg + f * a2) >> 8) & gMask; - cR[f] = ((pr + f * a3) >> 8) & rMask; - } - - mOldPixel = pixel; - mOldAlpha = mColor.a; - } - - for (y = y1; y < y2; y++) - { - uint32_t *const p0 = reinterpret_cast<uint32_t*>( - static_cast<uint8_t*>(mWindow->pixels) - + y * mWindow->pitch); - for (x = x1; x < x2; x++) - { - uint32_t *const p = p0 + x; - const uint32_t dst = *p; - *p = cB[dst & bMask / bShift] - | cG[(dst & gMask) / gShift] - | cR[(dst & rMask) / rShift]; - } - } -#endif - break; - } - default: - break; - } - - SDL_UnlockSurface(mWindow); - } - else - { - SDL_Rect rect = - { - static_cast<int16_t>(area.x), - static_cast<int16_t>(area.y), - static_cast<uint16_t>(area.width), - static_cast<uint16_t>(area.height) - }; - - const uint32_t color = SDL_MapRGBA(mWindow->format, - static_cast<int8_t>(mColor.r), - static_cast<int8_t>(mColor.g), - static_cast<int8_t>(mColor.b), - static_cast<int8_t>(mColor.a)); - SDL_FillRect(mWindow, &rect, color); - } -} - -void SDLGraphics::_beginDraw() -{ - pushClipArea(gcn::Rectangle(0, 0, mRect.w, mRect.h)); -} - -void SDLGraphics::_endDraw() -{ - popClipArea(); -} - -bool SDLGraphics::pushClipArea(gcn::Rectangle area) -{ - const bool result = gcn::Graphics::pushClipArea(area); - const gcn::ClipRectangle &carea = mClipStack.top(); - const SDL_Rect rect = - { - static_cast<int16_t>(carea.x), - static_cast<int16_t>(carea.y), - static_cast<uint16_t>(carea.width), - static_cast<uint16_t>(carea.height) - }; - SDL_SetClipRect(mWindow, &rect); - - return result; -} - -void SDLGraphics::popClipArea() -{ - gcn::Graphics::popClipArea(); - - if (mClipStack.empty()) - return; - - const gcn::ClipRectangle &carea = mClipStack.top(); - const SDL_Rect rect = - { - static_cast<int16_t>(carea.x), - static_cast<int16_t>(carea.y), - static_cast<uint16_t>(carea.width), - static_cast<uint16_t>(carea.height) - }; - - SDL_SetClipRect(mWindow, &rect); -} - -void SDLGraphics::drawPoint(int x, int y) -{ - if (mClipStack.empty()) - return; - - const gcn::ClipRectangle& top = mClipStack.top(); - - x += top.xOffset; - y += top.yOffset; - - if (!top.isPointInRect(x, y)) - return; - - if (mAlpha) - SDLputPixelAlpha(mWindow, x, y, mColor); - else - SDLputPixel(mWindow, x, y, mColor); -} - -void SDLGraphics::drawHLine(int x1, int y, int x2) -{ - if (mClipStack.empty()) - return; - - const gcn::ClipRectangle& top = mClipStack.top(); - - const int xOffset = top.xOffset; - x1 += xOffset; - y += top.yOffset; - x2 += xOffset; - - const int topY = top.y; - if (y < topY || y >= topY + top.height) - return; - - if (x1 > x2) - { - x1 ^= x2; - x2 ^= x1; - x1 ^= x2; - } - - const int topX = top.x; - if (topX > x1) - { - if (topX > x2) - return; - - x1 = topX; - } - - const int sumX = topX + top.width; - if (sumX <= x2) - { - if (sumX <= x1) - return; - - x2 = sumX -1; - } - - const int bpp = mWindow->format->BytesPerPixel; - - SDL_LockSurface(mWindow); - - uint8_t *p = static_cast<uint8_t*>(mWindow->pixels) - + y * mWindow->pitch + x1 * bpp; - - const uint32_t pixel = SDL_MapRGB(mWindow->format, - static_cast<uint8_t>(mColor.r), - static_cast<uint8_t>(mColor.g), - static_cast<uint8_t>(mColor.b)); - switch (bpp) - { - case 1: - for (; x1 <= x2; ++x1) - *(p++) = static_cast<uint8_t>(pixel); - break; - - case 2: - { - uint16_t* q = reinterpret_cast<uint16_t*>(p); - for (; x1 <= x2; ++x1) - *(q++) = pixel; - break; - } - - case 3: - { - const uint8_t b0 = static_cast<uint8_t>((pixel >> 16) & 0xff); - const uint8_t b1 = static_cast<uint8_t>((pixel >> 8) & 0xff); - const uint8_t b2 = static_cast<uint8_t>(pixel & 0xff); -#if SDL_BYTEORDER == SDL_BIG_ENDIAN - for (; x1 <= x2; ++x1) - { - p[0] = b0; - p[1] = b1; - p[2] = b2; - p += 3; - } -#else - for (; x1 <= x2; ++x1) - { - p[0] = b2; - p[1] = b1; - p[2] = b0; - p += 3; - } -#endif - break; - } - - case 4: - { - uint32_t *q = reinterpret_cast<uint32_t*>(p); - if (mAlpha) - { - unsigned char a = static_cast<unsigned char>(mColor.a); - unsigned char a1 = 255 - a; - const int b0 = (pixel & 0xff) * a; - const int g0 = (pixel & 0xff00) * a; - const int r0 = (pixel & 0xff0000) * a; - for (; x1 <= x2; ++x1) - { - const unsigned int b = (b0 + (*q & 0xff) * a1) >> 8; - const unsigned int g = (g0 + (*q & 0xff00) * a1) >> 8; - const unsigned int r = (r0 + (*q & 0xff0000) * a1) >> 8; - *q = (b & 0xff) | (g & 0xff00) | (r & 0xff0000); - - q++; - } - } - else - { - for (; x1 <= x2; ++x1) - *(q++) = pixel; - } - break; - } - default: - break; - } // end switch - - SDL_UnlockSurface(mWindow); -} - -void SDLGraphics::drawVLine(int x, int y1, int y2) -{ - if (mClipStack.empty()) - return; - - const gcn::ClipRectangle& top = mClipStack.top(); - - const int yOffset = top.yOffset; - x += top.xOffset; - y1 += yOffset; - y2 += yOffset; - - if (x < top.x || x >= top.x + top.width) - return; - - if (y1 > y2) - { - y1 ^= y2; - y2 ^= y1; - y1 ^= y2; - } - - if (top.y > y1) - { - if (top.y > y2) - return; - - y1 = top.y; - } - - const int sumY = top.y + top.height; - if (sumY <= y2) - { - if (sumY <= y1) - return; - - y2 = sumY - 1; - } - - const int bpp = mWindow->format->BytesPerPixel; - - SDL_LockSurface(mWindow); - - uint8_t *p = static_cast<uint8_t*>(mWindow->pixels) - + y1 * mWindow->pitch + x * bpp; - - const uint32_t pixel = SDL_MapRGB(mWindow->format, - static_cast<uint8_t>(mColor.r), - static_cast<uint8_t>(mColor.g), - static_cast<uint8_t>(mColor.b)); - - const int pitch = mWindow->pitch; - switch (bpp) - { - case 1: - for (; y1 <= y2; ++y1) - { - *p = static_cast<uint8_t>(pixel); - p += pitch; - } - break; - - case 2: - for (; y1 <= y2; ++ y1) - { - *reinterpret_cast<uint16_t*>(p) - = static_cast<uint16_t>(pixel); - p += pitch; - } - break; - - case 3: - { - const uint8_t b0 = static_cast<uint8_t>((pixel >> 16) & 0xff); - const uint8_t b1 = static_cast<uint8_t>((pixel >> 8) & 0xff); - const uint8_t b2 = static_cast<uint8_t>(pixel & 0xff); -#if SDL_BYTEORDER == SDL_BIG_ENDIAN - for (; y1 <= y2; ++y1) - { - p[0] = b0; - p[1] = b1; - p[2] = b2; - p += pitch; - } -#else - for (; y1 <= y2; ++y1) - { - p[0] = b2; - p[1] = b1; - p[2] = b0; - p += pitch; - } -#endif - break; - } - - case 4: - { - if (mAlpha) - { - unsigned char a = static_cast<unsigned char>(mColor.a); - unsigned char a1 = 255 - a; - const int b0 = (pixel & 0xff) * a; - const int g0 = (pixel & 0xff00) * a; - const int r0 = (pixel & 0xff0000) * a; - for (; y1 <= y2; ++y1) - { - const unsigned int dst = *reinterpret_cast<uint32_t*>(p); - const unsigned int b = (b0 + (dst & 0xff) * a1) >> 8; - const unsigned int g = (g0 + (dst & 0xff00) * a1) >> 8; - const unsigned int r = (r0 + (dst & 0xff0000) * a1) >> 8; - *reinterpret_cast<uint32_t*>(p) = - (b & 0xff) | (g & 0xff00) | (r & 0xff0000); - - p += pitch; - } - } - else - { - for (; y1 <= y2; ++y1) - { - *reinterpret_cast<uint32_t*>(p) = pixel; - p += pitch; - } - } - break; - } - - default: - break; - } // end switch - - SDL_UnlockSurface(mWindow); -} - -void SDLGraphics::drawRectangle(const gcn::Rectangle &rectangle) -{ - const int x1 = rectangle.x; - const int x2 = x1 + rectangle.width - 1; - const int y1 = rectangle.y; - const int y2 = y1 + rectangle.height - 1; - - drawHLine(x1, y1, x2); - drawHLine(x1, y2, x2); - - drawVLine(x1, y1, y2); - drawVLine(x2, y1, y2); -} - -void SDLGraphics::drawLine(int x1, int y1, int x2, int y2) -{ - if (x1 == x2) - { - drawVLine(x1, y1, y2); - return; - } - if (y1 == y2) - { - drawHLine(x1, y1, x2); - return; - } - - // other cases not implimented -} - -bool SDLGraphics::setVideoMode(const int w, const int h, const int bpp, - const bool fs, const bool hwaccel, - const bool resize, const bool noFrame) -{ - setMainFlags(w, h, bpp, fs, hwaccel, resize, noFrame); - - if (!(mWindow = graphicsManager.createWindow(w, h, bpp, - getSoftwareFlags()))) - { - mRect.w = 0; - mRect.h = 0; - return false; - } - - mRect.w = static_cast<uint16_t>(mWindow->w); - mRect.h = static_cast<uint16_t>(mWindow->h); - - return videoInfo(); -} - -#endif // USE_SDL2 |