133 lines
4.6 KiB
C++
Executable file
133 lines
4.6 KiB
C++
Executable file
// -----------------------------------------------------------------------------
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// This file is part of Broken Sword 2.5
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// Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdörfer
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//
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// Broken Sword 2.5 is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// Broken Sword 2.5 is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Broken Sword 2.5; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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// -----------------------------------------------------------------------------
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// -----------------------------------------------------------------------------
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// Includes
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// -----------------------------------------------------------------------------
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#include "sword25/gfx/image/vectorimage.h"
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#include "sword25/gfx/image/vectorimagerenderer.h"
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#include "sword25/util/glsprites/glsprites.h"
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#include <vector>
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using namespace std;
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#define BS_LOG_PREFIX "GLVECTORIMAGEBLIT"
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// -----------------------------------------------------------------------------
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namespace
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{
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const float LINE_SCALE_FACTOR = 1.0f;
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}
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// -----------------------------------------------------------------------------
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bool BS_VectorImage::Blit(int PosX, int PosY,
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int Flipping,
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BS_Rect* pPartRect,
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unsigned int Color,
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int Width, int Height)
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{
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static BS_VectorImageRenderer VectorImageRenderer;
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static vector<char> PixelData;
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static GLS_Sprite Sprite = 0;
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static BS_VectorImage * OldThis = 0;
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static int OldWidth;
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static int OldHeight;
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static GLS_Rect OldSubImage;
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// Falls Breite oder Höhe 0 sind, muss nichts dargestellt werden.
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if (Width == 0 || Height == 0) return true;
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// Sprite erstellen, falls es noch nicht erstellt wurde
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if (Sprite == 0)
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{
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GLS_Result Result = GLS_NewSprite(512, 512, GLS_True, 0, &Sprite);
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if (Result != GLS_OK)
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{
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BS_LOG_ERRORLN("Could not create GLS_Sprite. Reason: %s", GLS_ResultString(Result));
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return false;
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}
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}
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// Feststellen, ob das alte Bild im Cache nicht wiederbenutzt werden kann und neu Berechnet werden muss
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if (!(OldThis == this && OldWidth == Width && OldHeight == Height && Sprite != 0))
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{
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float ScaleFactorX = (Width == - 1) ? 1 : static_cast<float>(Width) / static_cast<float>(GetWidth());
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float ScaleFactorY = (Height == - 1) ? 1: static_cast<float>(Height) / static_cast<float>(GetHeight());
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unsigned int RenderedWidth;
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unsigned int RenderedHeight;
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if (!VectorImageRenderer.Render(*this, ScaleFactorX, ScaleFactorY, RenderedWidth, RenderedHeight, PixelData, LINE_SCALE_FACTOR))
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{
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BS_LOG_ERRORLN("Call to BS_VectorImageRenderer::Render() failed.");
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return false;
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}
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if (RenderedWidth > 512 || RenderedHeight > 512)
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{
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BS_LOG_WARNINGLN("Currently the maximum size for scaled vector images is 512x512.");
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return true;
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}
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GLS_Result Result = GLS_SetSpriteData(Sprite, RenderedWidth, RenderedHeight, &PixelData[0], 0);
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if (Result != GLS_OK)
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{
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BS_LOG_ERRORLN("Call to GLS_SetSpriteData() failed. Reason: %s", GLS_ResultString(Result));
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return false;
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}
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OldThis = this;
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OldHeight = Height;
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OldWidth = Width;
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OldSubImage.x1 = 0;
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OldSubImage.y1 = 0;
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OldSubImage.x2 = RenderedWidth;
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OldSubImage.y2 = RenderedHeight;
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}
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// Rendern
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// -------
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// pDest wird ignoriert. Es wird einfach angenommen, dass der Backbuffer gemeint ist, da nur auf den Backbuffer gerendert werden kann.
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// Ebenso werden pPartRect ignoriert. Es wird immer das gesamte Sprite gerendert.
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// Farbe nach GLS_Color konvertieren
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GLS_Color GLSColor;
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GLSColor.a = Color >> 24;
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GLSColor.r = (Color >> 16) & 0xff;
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GLSColor.g = (Color >> 8) & 0xff;
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GLSColor.b = Color & 0xff;
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// Rendern
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// TODO:
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// Die Bedeutung von FLIP_V und FLIP_H ist vertauscht. Allerdings glaubt der Rest der Engine auch daran, daher war es einfacher diesen Fehler
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// weiterzuführen. Bei Gelegenheit ist dieses aber zu ändern.
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GLS_Result Result = GLS_Blit(Sprite,
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PosX, PosY,
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&OldSubImage, &GLSColor,
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(Flipping & BS_Image::FLIP_V) ? GLS_True : GLS_False,
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(Flipping & BS_Image::FLIP_H) ? GLS_True : GLS_False,
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1.0f, 1.0f);
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if (Result != GLS_OK) BS_LOG_ERRORLN("GLS_Blit() failed. Reason: %s", GLS_ResultString(Result));
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return Result == GLS_OK;
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}
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