diff options
Diffstat (limited to 'engines/sword25/gfx/opengl/glvectorimageblit.cpp')
| -rwxr-xr-x | engines/sword25/gfx/opengl/glvectorimageblit.cpp | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/engines/sword25/gfx/opengl/glvectorimageblit.cpp b/engines/sword25/gfx/opengl/glvectorimageblit.cpp new file mode 100755 index 0000000000..38cfd9fa85 --- /dev/null +++ b/engines/sword25/gfx/opengl/glvectorimageblit.cpp @@ -0,0 +1,133 @@ +// ----------------------------------------------------------------------------- +// This file is part of Broken Sword 2.5 +// Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdörfer +// +// Broken Sword 2.5 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. +// +// Broken Sword 2.5 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 Broken Sword 2.5; if not, write to the Free Software +// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +// ----------------------------------------------------------------------------- + +// ----------------------------------------------------------------------------- +// Includes +// ----------------------------------------------------------------------------- + +#include "gfx/image/vectorimage.h" +#include "gfx/image/vectorimagerenderer.h" +#include "util/glsprites/glsprites.h" + +#include <vector> +using namespace std; + +#define BS_LOG_PREFIX "GLVECTORIMAGEBLIT" + +// ----------------------------------------------------------------------------- + +namespace +{ + const float LINE_SCALE_FACTOR = 1.0f; +} + +// ----------------------------------------------------------------------------- + +bool BS_VectorImage::Blit(int PosX, int PosY, + int Flipping, + BS_Rect* pPartRect, + unsigned int Color, + int Width, int Height) +{ + static BS_VectorImageRenderer VectorImageRenderer; + static vector<char> PixelData; + static GLS_Sprite Sprite = 0; + static BS_VectorImage * OldThis = 0; + static int OldWidth; + static int OldHeight; + static GLS_Rect OldSubImage; + + // Falls Breite oder Höhe 0 sind, muss nichts dargestellt werden. + if (Width == 0 || Height == 0) return true; + + // Sprite erstellen, falls es noch nicht erstellt wurde + if (Sprite == 0) + { + GLS_Result Result = GLS_NewSprite(512, 512, GLS_True, 0, &Sprite); + if (Result != GLS_OK) + { + BS_LOG_ERRORLN("Could not create GLS_Sprite. Reason: %s", GLS_ResultString(Result)); + return false; + } + } + + // Feststellen, ob das alte Bild im Cache nicht wiederbenutzt werden kann und neu Berechnet werden muss + if (!(OldThis == this && OldWidth == Width && OldHeight == Height && Sprite != 0)) + { + float ScaleFactorX = (Width == - 1) ? 1 : static_cast<float>(Width) / static_cast<float>(GetWidth()); + float ScaleFactorY = (Height == - 1) ? 1: static_cast<float>(Height) / static_cast<float>(GetHeight()); + + unsigned int RenderedWidth; + unsigned int RenderedHeight; + if (!VectorImageRenderer.Render(*this, ScaleFactorX, ScaleFactorY, RenderedWidth, RenderedHeight, PixelData, LINE_SCALE_FACTOR)) + { + BS_LOG_ERRORLN("Call to BS_VectorImageRenderer::Render() failed."); + return false; + } + + if (RenderedWidth > 512 || RenderedHeight > 512) + { + BS_LOG_WARNINGLN("Currently the maximum size for scaled vector images is 512x512."); + return true; + } + + GLS_Result Result = GLS_SetSpriteData(Sprite, RenderedWidth, RenderedHeight, &PixelData[0], 0); + if (Result != GLS_OK) + { + BS_LOG_ERRORLN("Call to GLS_SetSpriteData() failed. Reason: %s", GLS_ResultString(Result)); + return false; + } + + OldThis = this; + OldHeight = Height; + OldWidth = Width; + + OldSubImage.x1 = 0; + OldSubImage.y1 = 0; + OldSubImage.x2 = RenderedWidth; + OldSubImage.y2 = RenderedHeight; + } + + // Rendern + // ------- + + // pDest wird ignoriert. Es wird einfach angenommen, dass der Backbuffer gemeint ist, da nur auf den Backbuffer gerendert werden kann. + // Ebenso werden pPartRect ignoriert. Es wird immer das gesamte Sprite gerendert. + + // Farbe nach GLS_Color konvertieren + GLS_Color GLSColor; + GLSColor.a = Color >> 24; + GLSColor.r = (Color >> 16) & 0xff; + GLSColor.g = (Color >> 8) & 0xff; + GLSColor.b = Color & 0xff; + + // Rendern + // TODO: + // Die Bedeutung von FLIP_V und FLIP_H ist vertauscht. Allerdings glaubt der Rest der Engine auch daran, daher war es einfacher diesen Fehler + // weiterzuführen. Bei Gelegenheit ist dieses aber zu ändern. + GLS_Result Result = GLS_Blit(Sprite, + PosX, PosY, + &OldSubImage, &GLSColor, + (Flipping & BS_Image::FLIP_V) ? GLS_True : GLS_False, + (Flipping & BS_Image::FLIP_H) ? GLS_True : GLS_False, + 1.0f, 1.0f); + if (Result != GLS_OK) BS_LOG_ERRORLN("GLS_Blit() failed. Reason: %s", GLS_ResultString(Result)); + + return Result == GLS_OK; +} |