From 2ab3f0d8d04374b330c91a9f065efa0f526d7824 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Sun, 1 Sep 2013 20:50:30 +0300
Subject: add software renderer for SDL2.
before it used default renderer with software flags.
---
src/render/sdl2softwaregraphics.cpp | 1283 +++++++++++++++++++++++++++++++++++
src/render/sdl2softwaregraphics.h | 157 +++++
2 files changed, 1440 insertions(+)
create mode 100644 src/render/sdl2softwaregraphics.cpp
create mode 100644 src/render/sdl2softwaregraphics.h
(limited to 'src/render')
diff --git a/src/render/sdl2softwaregraphics.cpp b/src/render/sdl2softwaregraphics.cpp
new file mode 100644
index 000000000..857909636
--- /dev/null
+++ b/src/render/sdl2softwaregraphics.cpp
@@ -0,0 +1,1283 @@
+/*
+ * 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/>.
+ */
+
+#ifdef USE_SDL2
+
+#include "render/sdl2softwaregraphics.h"
+
+#include "main.h"
+
+#include "configuration.h"
+#include "graphicsmanager.h"
+#include "graphicsvertexes.h"
+#include "logger.h"
+
+#include "resources/imagehelper.h"
+#include "resources/sdl2imagehelper.h"
+
+#include <guichan/sdl/sdlpixel.hpp>
+
+#include "utils/sdlcheckutils.h"
+
+#include <SDL.h>
+
+#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
+
+SDL2SoftwareGraphics::SDL2SoftwareGraphics() :
+ Graphics(),
+ mRendererFlags(SDL_RENDERER_SOFTWARE),
+ mSurface(nullptr),
+ mOldPixel(0),
+ mOldAlpha(0)
+{
+ mOpenGL = RENDER_SOFTWARE;
+ mName = "Software";
+}
+
+SDL2SoftwareGraphics::~SDL2SoftwareGraphics()
+{
+}
+
+bool SDL2SoftwareGraphics::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 (!mSurface || !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, mSurface, &dstRect) < 0);
+
+ delete tmpImage;
+
+ return returnValue;
+}
+
+bool SDL2SoftwareGraphics::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 (!mSurface || !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 = &mSurface->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, mSurface, &dstRect);
+ }
+ return 0;
+}
+
+void SDL2SoftwareGraphics::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 (!mSurface || !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 = &mSurface->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, mSurface, &dstRect);
+ }
+
+// SDL_BlitSurface(image->mSDLSurface, &srcRect, mWindow, &dstRect);
+ }
+ }
+ }
+}
+
+void SDL2SoftwareGraphics::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 (!mSurface || !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,
+ mSurface, &dstRect);
+ }
+ }
+
+ delete tmpImage;
+}
+
+void SDL2SoftwareGraphics::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 || !mSurface || !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,
+ mSurface, &dstRect) == 1)
+ {
+ vert->sdl.push_back(r);
+ }
+ else
+ {
+ delete r;
+ }
+ }
+ }
+}
+
+void SDL2SoftwareGraphics::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 SDL2SoftwareGraphics::calcTile(ImageVertexes *const vert,
+ const Image *const image,
+ int x, int y) const
+{
+ vert->image = image;
+ calcTileSDL(vert, x, y);
+}
+
+void SDL2SoftwareGraphics::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,
+ mSurface, &rect->dst) == 1)
+ {
+ vert->sdl.push_back(rect);
+ }
+ else
+ {
+ delete rect;
+ }
+}
+
+void SDL2SoftwareGraphics::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 SDL2SoftwareGraphics::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,
+ mSurface, &(*it2)->dst);
+ ++ it2;
+ }
+ }
+}
+
+void SDL2SoftwareGraphics::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, mSurface, &(*it)->dst);
+ ++ it;
+ }
+}
+
+void SDL2SoftwareGraphics::updateScreen()
+{
+ BLOCK_START("Graphics::updateScreen")
+ SDL_UpdateWindowSurfaceRects(mWindow, &mRect, 1);
+ BLOCK_END("Graphics::updateScreen")
+}
+
+SDL_Surface *SDL2SoftwareGraphics::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(mSurface, nullptr, screenshot, nullptr);
+
+ return screenshot;
+}
+
+bool SDL2SoftwareGraphics::drawNet(const int x1, const int y1,
+ const int x2, const int y2,
+ const int width, const int height)
+{
+ // +++ need use SDL_RenderDrawLines
+ 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 SDL2SoftwareGraphics::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 SDL2SoftwareGraphics::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 SDL2SoftwareGraphics::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(mSurface);
+
+ const int bpp = mSurface->format->BytesPerPixel;
+ const uint32_t pixel = SDL_MapRGB(mSurface->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 *>(mSurface->pixels)
+ + y * mSurface->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 *>(mSurface->pixels)
+ + y * mSurface->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), mSurface->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 *>(mSurface->pixels)
+ + y * mSurface->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 *>(mSurface->pixels)
+ + y * mSurface->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 = mSurface->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*>(mSurface->pixels)
+ + y * mSurface->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(mSurface);
+ }
+ 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(mSurface->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(mSurface, &rect, color);
+ }
+}
+
+void SDL2SoftwareGraphics::_beginDraw()
+{
+ pushClipArea(gcn::Rectangle(0, 0, mRect.w, mRect.h));
+}
+
+void SDL2SoftwareGraphics::_endDraw()
+{
+ popClipArea();
+}
+
+bool SDL2SoftwareGraphics::pushClipArea(gcn::Rectangle area)
+{
+ const bool result = gcn::Graphics::pushClipArea(area);
+
+ const gcn::ClipRectangle &carea = mClipStack.top();
+ const SDL_Rect rect =
+ {
+ static_cast<int32_t>(carea.x),
+ static_cast<int32_t>(carea.y),
+ static_cast<int32_t>(carea.width),
+ static_cast<int32_t>(carea.height)
+ };
+ SDL_SetClipRect(mSurface, &rect);
+ return result;
+}
+
+void SDL2SoftwareGraphics::popClipArea()
+{
+ gcn::Graphics::popClipArea();
+
+ if (mClipStack.empty())
+ return;
+
+ const gcn::ClipRectangle &carea = mClipStack.top();
+ const SDL_Rect rect =
+ {
+ static_cast<int32_t>(carea.x),
+ static_cast<int32_t>(carea.y),
+ static_cast<int32_t>(carea.width),
+ static_cast<int32_t>(carea.height)
+ };
+
+ SDL_SetClipRect(mSurface, &rect);
+}
+
+void SDL2SoftwareGraphics::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(mSurface, x, y, mColor);
+ else
+ SDLputPixel(mSurface, x, y, mColor);
+}
+
+void SDL2SoftwareGraphics::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 = mSurface->format->BytesPerPixel;
+
+ SDL_LockSurface(mSurface);
+
+ uint8_t *p = static_cast<uint8_t*>(mSurface->pixels)
+ + y * mSurface->pitch + x1 * bpp;
+
+ const uint32_t pixel = SDL_MapRGB(mSurface->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(mSurface);
+}
+
+void SDL2SoftwareGraphics::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 = mSurface->format->BytesPerPixel;
+
+ SDL_LockSurface(mSurface);
+
+ uint8_t *p = static_cast<uint8_t*>(mSurface->pixels)
+ + y1 * mSurface->pitch + x * bpp;
+
+ const uint32_t pixel = SDL_MapRGB(mSurface->format,
+ static_cast<uint8_t>(mColor.r),
+ static_cast<uint8_t>(mColor.g),
+ static_cast<uint8_t>(mColor.b));
+
+ const int pitch = mSurface->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(mSurface);
+}
+
+void SDL2SoftwareGraphics::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 SDL2SoftwareGraphics::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;
+ }
+}
+
+bool SDL2SoftwareGraphics::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;
+ mSurface = nullptr;
+ return false;
+ }
+
+ mSurface = SDL_GetWindowSurface(mWindow);
+ logger->log("window surface: %p", mSurface);
+
+ int w1 = 0;
+ int h1 = 0;
+ SDL_GetWindowSize(mWindow, &w1, &h1);
+ mRect.w = w1;
+ mRect.h = h1;
+
+ mRenderer = graphicsManager.createRenderer(mWindow, mRendererFlags);
+ SDLImageHelper::setRenderer(mRenderer);
+ return videoInfo();
+}
+
+#endif // USE_SDL2
diff --git a/src/render/sdl2softwaregraphics.h b/src/render/sdl2softwaregraphics.h
new file mode 100644
index 000000000..7ddba5018
--- /dev/null
+++ b/src/render/sdl2softwaregraphics.h
@@ -0,0 +1,157 @@
+/*
+ * 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 SDL2SOFTWAREGRAPHICS_H
+#define SDL2SOFTWAREGRAPHICS_H
+
+#ifdef USE_SDL2
+
+#include "render/graphics.h"
+
+#include "localconsts.h"
+
+class Image;
+class ImageCollection;
+class ImageVertexes;
+class MapLayer;
+
+struct SDL_Surface;
+
+/**
+ * A central point of control for graphics.
+ */
+class SDL2SoftwareGraphics : public Graphics
+{
+ public:
+ /**
+ * Constructor.
+ */
+ SDL2SoftwareGraphics();
+
+ A_DELETE_COPY(SDL2SoftwareGraphics)
+
+ /**
+ * Destructor.
+ */
+ virtual ~SDL2SoftwareGraphics();
+
+ void _beginDraw();
+
+ void _endDraw();
+
+ bool pushClipArea(gcn::Rectangle rect);
+
+ void popClipArea();
+
+ virtual bool 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 = false);
+
+ virtual void drawImagePattern(const Image *const image,
+ const int x, const int y,
+ const int w, const int h);
+
+ virtual void drawRescaledImagePattern(const Image *const image,
+ const int x, const int y,
+ const int w, const int h,
+ const int scaledWidth,
+ const int scaledHeight);
+
+ virtual void calcImagePattern(ImageVertexes *const vert,
+ const Image *const image,
+ const int x, const int y,
+ const int w, const int h) const;
+
+ virtual void calcImagePattern(ImageCollection *const vert,
+ const Image *const image,
+ const int x, const int y,
+ const int w, const int h) const;
+
+ virtual void calcTile(ImageVertexes *const vert,
+ const Image *const image, int x, int y) const;
+
+ virtual void calcTileSDL(ImageVertexes *const vert,
+ int x, int y) const;
+
+ virtual void calcTile(ImageCollection *const vertCol,
+ const Image *const image,
+ int x, int y);
+
+ virtual void drawTile(const ImageVertexes *const vert);
+
+ virtual void drawTile(const ImageCollection *const vertCol);
+
+ virtual void updateScreen();
+
+ virtual SDL_Surface *getScreenshot() A_WARN_UNUSED;
+
+ virtual bool drawNet(const int x1, const int y1,
+ const int x2, const int y2,
+ const int width, const int height);
+
+ virtual bool calcWindow(ImageCollection *const vertCol,
+ const int x, const int y,
+ const int w, const int h,
+ const ImageRect &imgRect);
+
+ void fillRectangle(const gcn::Rectangle &rect) override;
+
+ void drawRectangle(const gcn::Rectangle &rect) override;
+
+ void drawPoint(int x, int y) override;
+
+ void drawLine(int x1, int y1, int x2, int y2) override;
+
+ bool setVideoMode(const int w, const int h, const int bpp,
+ const bool fs, const bool hwaccel,
+ const bool resize, const bool noFrame);
+
+ void setRendererFlags(const uint32_t flags)
+ { mRendererFlags = flags; }
+
+ protected:
+ virtual bool drawImage2(const Image *const image,
+ int srcX, int srcY,
+ int dstX, int dstY,
+ const int width, const int height,
+ const bool useColor);
+
+ int SDL_FakeUpperBlit(const SDL_Surface *const src,
+ SDL_Rect *const srcrect,
+ const SDL_Surface *const dst,
+ SDL_Rect *dstrect) const;
+
+ void drawHLine(int x1, int y, int x2);
+
+ void drawVLine(int x, int y1, int y2);
+
+ uint32_t mRendererFlags;
+ SDL_Surface *mSurface;
+ uint32_t mOldPixel;
+ int mOldAlpha;
+};
+
+#endif // USE_SDL2
+#endif // SDL2SOFTWAREGRAPHICS_H
--
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