Rename opengl1graphics to safeopenglgraphics.

1 files changed, 691 insertions, 0 deletions

diff --git a/src/safeopenglgraphics.cpp b/src/safeopenglgraphics.cpp
new file mode 100644
index 000000000..cc8bcc95b
--- /dev/null
+++ b/src/safeopenglgraphics.cpp
@@ -0,0 +1,691 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2004-2009  The Mana World Development Team
+ *  Copyright (C) 2009-2010  The Mana Developers
+ *  Copyright (C) 2011-2012  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/>.
+ */
+
+#include "main.h"
+
+#ifdef USE_OPENGL
+#include "safeopenglgraphics.h"
+
+#include "configuration.h"
+#include "graphicsvertexes.h"
+#include "logger.h"
+
+#include "resources/image.h"
+#include "resources/openglimagehelper.h"
+
+#include <SDL.h>
+
+#include "debug.h"
+
+#ifndef GL_TEXTURE_RECTANGLE_ARB
+#define GL_TEXTURE_RECTANGLE_ARB 0x84F5
+#define GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB 0x84F8
+#endif
+
+GLuint SafeOpenGLGraphics::mLastImage = 0;
+
+SafeOpenGLGraphics::SafeOpenGLGraphics():
+    mAlpha(false), mTexture(false), mColorAlpha(false),
+    mFboId(0), mTextureId(0), mRboId(0)
+{
+    mOpenGL = 2;
+    mName = "safe OpenGL";
+}
+
+SafeOpenGLGraphics::~SafeOpenGLGraphics()
+{
+}
+
+bool SafeOpenGLGraphics::setVideoMode(int w, int h, int bpp, bool fs,
+                                   bool hwaccel, bool resize, bool noFrame)
+{
+    setMainFlags(w, h, bpp, fs, hwaccel, resize, noFrame);
+
+    return setOpenGLMode();
+}
+
+static inline void drawQuad(const Image *image,
+                            int srcX, int srcY, int dstX, int dstY,
+                            int width, int height)
+{
+    if (OpenGLImageHelper::mTextureType == GL_TEXTURE_2D)
+    {
+        // Find OpenGL normalized texture coordinates.
+        float texX1 = static_cast<float>(srcX)
+            / static_cast<float>(image->getTextureWidth());
+        float texY1 = static_cast<float>(srcY)
+            / static_cast<float>(image->getTextureHeight());
+        float texX2 = static_cast<float>(srcX + width) / static_cast<float>(
+            image->getTextureWidth());
+        float texY2 = static_cast<float>(srcY + height) / static_cast<float>(
+            image->getTextureHeight());
+
+        glTexCoord2f(texX1, texY1);
+        glVertex2i(dstX, dstY);
+        glTexCoord2f(texX2, texY1);
+        glVertex2i(dstX + width, dstY);
+        glTexCoord2f(texX2, texY2);
+        glVertex2i(dstX + width, dstY + height);
+        glTexCoord2f(texX1, texY2);
+        glVertex2i(dstX, dstY + height);
+    }
+    else
+    {
+        glTexCoord2i(srcX, srcY);
+        glVertex2i(dstX, dstY);
+        glTexCoord2i(srcX + width, srcY);
+        glVertex2i(dstX + width, dstY);
+        glTexCoord2i(srcX + width, srcY + height);
+        glVertex2i(dstX + width, dstY + height);
+        glTexCoord2i(srcX, srcY + height);
+        glVertex2i(dstX, dstY + height);
+    }
+}
+
+static inline void drawRescaledQuad(Image *image, int srcX, int srcY,
+                                    int dstX, int dstY, int width, int height,
+                                    int desiredWidth, int desiredHeight)
+{
+    if (OpenGLImageHelper::mTextureType == GL_TEXTURE_2D)
+    {
+        // Find OpenGL normalized texture coordinates.
+        float texX1 = static_cast<float>(srcX)
+            / static_cast<float>(image->getTextureWidth());
+        float texY1 = static_cast<float>(srcY)
+            / static_cast<float>(image->getTextureHeight());
+        float texX2 = static_cast<float>(srcX + width) / static_cast<float>(
+            image->getTextureWidth());
+        float texY2 = static_cast<float>(srcY + height) / static_cast<float>(
+            image->getTextureHeight());
+
+        glTexCoord2f(texX1, texY1);
+        glVertex2i(dstX, dstY);
+        glTexCoord2f(texX2, texY1);
+        glVertex2i(dstX + desiredWidth, dstY);
+        glTexCoord2f(texX2, texY2);
+        glVertex2i(dstX + desiredWidth, dstY + desiredHeight);
+        glTexCoord2f(texX1, texY2);
+        glVertex2i(dstX, dstY + desiredHeight);
+    }
+    else
+    {
+        glTexCoord2i(srcX, srcY);
+        glVertex2i(dstX, dstY);
+        glTexCoord2i(srcX + width, srcY);
+        glVertex2i(dstX + desiredWidth, dstY);
+        glTexCoord2i(srcX + width, srcY + height);
+        glVertex2i(dstX + desiredWidth, dstY + desiredHeight);
+        glTexCoord2i(srcX, srcY + height);
+        glVertex2i(dstX, dstY + desiredHeight);
+    }
+}
+
+
+bool SafeOpenGLGraphics::drawImage2(const Image *image, int srcX, int srcY,
+                                 int dstX, int dstY,
+                                 int width, int height, bool useColor)
+{
+    if (!image)
+        return false;
+
+    srcX += image->mBounds.x;
+    srcY += image->mBounds.y;
+
+    if (!useColor)
+        glColor4f(1.0f, 1.0f, 1.0f, image->mAlpha);
+
+    bindTexture(OpenGLImageHelper::mTextureType, image->mGLImage);
+
+    setTexturingAndBlending(true);
+
+    // Draw a textured quad.
+    glBegin(GL_QUADS);
+    drawQuad(image, srcX, srcY, dstX, dstY, width, height);
+    glEnd();
+
+    if (!useColor)
+    {
+        glColor4ub(static_cast<GLubyte>(mColor.r),
+                   static_cast<GLubyte>(mColor.g),
+                   static_cast<GLubyte>(mColor.b),
+                   static_cast<GLubyte>(mColor.a));
+    }
+
+    return true;
+}
+
+bool SafeOpenGLGraphics::drawRescaledImage(Image *image, int srcX, int srcY,
+                                        int dstX, int dstY,
+                                        int width, int height,
+                                        int desiredWidth, int desiredHeight,
+                                        bool useColor)
+{
+    return drawRescaledImage(image, srcX, srcY,
+                             dstX, dstY,
+                             width, height,
+                             desiredWidth, desiredHeight,
+                             useColor, true);
+}
+
+bool SafeOpenGLGraphics::drawRescaledImage(Image *image, int srcX, int srcY,
+                                        int dstX, int dstY,
+                                        int width, int height,
+                                        int desiredWidth, int desiredHeight,
+                                        bool useColor, bool smooth)
+{
+    if (!image)
+        return false;
+
+    // Just draw the image normally when no resizing is necessary,
+    if (width == desiredWidth && height == desiredHeight)
+    {
+        return drawImage2(image, srcX, srcY, dstX, dstY,
+                          width, height, useColor);
+    }
+
+    // When the desired image is smaller than the current one,
+    // disable smooth effect.
+    if (width > desiredWidth && height > desiredHeight)
+        smooth = false;
+
+    srcX += image->mBounds.x;
+    srcY += image->mBounds.y;
+
+    if (!useColor)
+        glColor4f(1.0f, 1.0f, 1.0f, image->mAlpha);
+
+    bindTexture(OpenGLImageHelper::mTextureType, image->mGLImage);
+
+    setTexturingAndBlending(true);
+
+    // Draw a textured quad.
+    glBegin(GL_QUADS);
+    drawRescaledQuad(image, srcX, srcY, dstX, dstY, width, height,
+                     desiredWidth, desiredHeight);
+
+    if (smooth) // A basic smooth effect...
+    {
+        glColor4f(1.0f, 1.0f, 1.0f, 0.2f);
+        drawRescaledQuad(image, srcX, srcY, dstX - 1, dstY - 1, width, height,
+                        desiredWidth + 1, desiredHeight + 1);
+        drawRescaledQuad(image, srcX, srcY, dstX + 1, dstY + 1, width, height,
+                        desiredWidth - 1, desiredHeight - 1);
+
+        drawRescaledQuad(image, srcX, srcY, dstX + 1, dstY, width, height,
+                        desiredWidth - 1, desiredHeight);
+        drawRescaledQuad(image, srcX, srcY, dstX, dstY + 1, width, height,
+                        desiredWidth, desiredHeight - 1);
+    }
+
+    glEnd();
+
+    if (!useColor)
+    {
+        glColor4ub(static_cast<GLubyte>(mColor.r),
+                   static_cast<GLubyte>(mColor.g),
+                   static_cast<GLubyte>(mColor.b),
+                   static_cast<GLubyte>(mColor.a));
+    }
+
+    return true;
+}
+
+/* Optimising the functions that Graphics::drawImagePattern would call,
+ * so that glBegin...glEnd are outside the main loop. */
+void SafeOpenGLGraphics::drawImagePattern(const Image *image, int x, int y,
+                                       int w, int h)
+{
+    if (!image)
+        return;
+
+    const int srcX = image->mBounds.x;
+    const int srcY = image->mBounds.y;
+
+    const int iw = image->mBounds.w;
+    const int ih = image->mBounds.h;
+    if (iw == 0 || ih == 0)
+        return;
+
+    glColor4f(1.0f, 1.0f, 1.0f, image->mAlpha);
+
+    bindTexture(OpenGLImageHelper::mTextureType, image->mGLImage);
+
+    setTexturingAndBlending(true);
+
+    // Draw a set of textured rectangles
+    glBegin(GL_QUADS);
+
+    for (int py = 0; py < h; py += ih)
+    {
+        const int height = (py + ih >= h) ? h - py : ih;
+        const int dstY = y + py;
+        for (int px = 0; px < w; px += iw)
+        {
+            int width = (px + iw >= w) ? w - px : iw;
+            int dstX = x + px;
+
+            drawQuad(image, srcX, srcY, dstX, dstY, width, height);
+        }
+    }
+
+    glEnd();
+
+    glColor4ub(static_cast<GLubyte>(mColor.r),
+               static_cast<GLubyte>(mColor.g),
+               static_cast<GLubyte>(mColor.b),
+               static_cast<GLubyte>(mColor.a));
+}
+
+void SafeOpenGLGraphics::drawRescaledImagePattern(Image *image, int x, int y,
+                                               int w, int h,
+                                               int scaledWidth,
+                                               int scaledHeight)
+{
+    if (!image)
+        return;
+
+    const int srcX = image->mBounds.x;
+    const int srcY = image->mBounds.y;
+
+    const int iw = scaledWidth;
+    const int ih = scaledHeight;
+    if (iw == 0 || ih == 0)
+        return;
+
+    glColor4f(1.0f, 1.0f, 1.0f, image->mAlpha);
+
+    bindTexture(OpenGLImageHelper::mTextureType, image->mGLImage);
+
+    setTexturingAndBlending(true);
+
+    // Draw a set of textured rectangles
+    glBegin(GL_QUADS);
+
+    const float scaleFactorW = static_cast<float>(scaledWidth)
+        / image->getWidth();
+    const float scaleFactorH = static_cast<float>(scaledHeight)
+        / image->getHeight();
+
+    for (int py = 0; py < h; py += ih)
+    {
+        const int height = (py + ih >= h) ? h - py : ih;
+        const int dstY = y + py;
+        for (int px = 0; px < w; px += iw)
+        {
+            int width = (px + iw >= w) ? w - px : iw;
+            int dstX = x + px;
+
+            drawRescaledQuad(image, srcX, srcY, dstX, dstY,
+                width / scaleFactorW, height / scaleFactorH,
+                scaledWidth, scaledHeight);
+        }
+    }
+
+    glEnd();
+
+    glColor4ub(static_cast<GLubyte>(mColor.r), static_cast<GLubyte>(mColor.g),
+        static_cast<GLubyte>(mColor.b), static_cast<GLubyte>(mColor.a));
+}
+
+bool SafeOpenGLGraphics::calcImageRect(GraphicsVertexes* vert,
+                                    int x, int y, int w, int h,
+                                    Image *topLeft A_UNUSED,
+                                    Image *topRight A_UNUSED,
+                                    Image *bottomLeft A_UNUSED,
+                                    Image *bottomRight A_UNUSED,
+                                    Image *top A_UNUSED, Image *right A_UNUSED,
+                                    Image *bottom A_UNUSED,
+                                    Image *left A_UNUSED,
+                                    Image *center A_UNUSED)
+{
+    if (!vert)
+        return false;
+
+    vert->init(x, y, w, h);
+    return true;
+}
+
+void SafeOpenGLGraphics::calcTile(ImageVertexes *vert A_UNUSED,
+                               int x A_UNUSED, int y A_UNUSED)
+{
+
+}
+
+void SafeOpenGLGraphics::drawTile(ImageVertexes *vert A_UNUSED)
+{
+
+}
+
+void SafeOpenGLGraphics::drawImageRect2(GraphicsVertexes* vert,
+                                     const ImageRect &imgRect)
+{
+    if (!vert)
+        return;
+
+    drawImageRect(vert->getX(), vert->getY(), vert->getW(), vert->getH(),
+            imgRect.grid[0], imgRect.grid[2], imgRect.grid[6], imgRect.grid[8],
+            imgRect.grid[1], imgRect.grid[5], imgRect.grid[7], imgRect.grid[3],
+            imgRect.grid[4]);
+}
+
+void SafeOpenGLGraphics::updateScreen()
+{
+    glFlush();
+    glFinish();
+    SDL_GL_SwapBuffers();
+}
+
+void SafeOpenGLGraphics::_beginDraw()
+{
+    glMatrixMode(GL_TEXTURE);
+    glLoadIdentity();
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+
+    glOrtho(0.0, static_cast<double>(mTarget->w),
+        static_cast<double>(mTarget->h), 0.0, -1.0, 1.0);
+
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+
+    glEnable(GL_SCISSOR_TEST);
+
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+    pushClipArea(gcn::Rectangle(0, 0, mTarget->w, mTarget->h));
+}
+
+void SafeOpenGLGraphics::_endDraw()
+{
+    popClipArea();
+}
+
+void SafeOpenGLGraphics::prepareScreenshot()
+{
+#if !defined(_WIN32)
+    if (config.getBoolValue("usefbo"))
+    {
+        int h = mTarget->h;
+        int w = mTarget->w;
+
+        // create a texture object
+        glGenTextures(1, &mTextureId);
+        glBindTexture(GL_TEXTURE_2D, mTextureId);
+        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, w, h, 0,
+            GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
+        glBindTexture(GL_TEXTURE_2D, 0);
+
+        // create a renderbuffer object to store depth info
+        glGenRenderbuffersEXT(1, &mRboId);
+        glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, mRboId);
+        glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT,
+            GL_DEPTH_COMPONENT, w, h);
+        glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
+
+        // create a framebuffer object
+        glGenFramebuffersEXT(1, &mFboId);
+        glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, mFboId);
+
+        // attach the texture to FBO color attachment point
+        glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
+            GL_TEXTURE_2D, mTextureId, 0);
+
+        // attach the renderbuffer to depth attachment point
+        glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+            GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, mRboId);
+
+        glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, mFboId);
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+    }
+#endif
+}
+
+SDL_Surface* SafeOpenGLGraphics::getScreenshot()
+{
+    const int h = mTarget->h;
+    const int w = mTarget->w - (mTarget->w % 4);
+    GLint pack = 1;
+
+    SDL_Surface *screenshot = SDL_CreateRGBSurface(
+            SDL_SWSURFACE,
+            w, h, 24,
+            0xff0000, 0x00ff00, 0x0000ff, 0x000000);
+
+    if (!screenshot)
+        return nullptr;
+
+    if (SDL_MUSTLOCK(screenshot))
+        SDL_LockSurface(screenshot);
+
+    // Grap the pixel buffer and write it to the SDL surface
+    glGetIntegerv(GL_PACK_ALIGNMENT, &pack);
+    glPixelStorei(GL_PACK_ALIGNMENT, 1);
+    glReadPixels(0, 0, w, h, GL_RGB, GL_UNSIGNED_BYTE, screenshot->pixels);
+
+    // Flip the screenshot, as OpenGL has 0,0 in bottom left
+    unsigned int lineSize = 3 * w;
+    GLubyte* buf = static_cast<GLubyte*>(malloc(lineSize));
+
+    for (int i = 0; i < (h / 2); i++)
+    {
+        GLubyte *top = static_cast<GLubyte*>(
+            screenshot->pixels) + lineSize * i;
+        GLubyte *bot = static_cast<GLubyte*>(
+            screenshot->pixels) + lineSize * (h - 1 - i);
+
+        memcpy(buf, top, lineSize);
+        memcpy(top, bot, lineSize);
+        memcpy(bot, buf, lineSize);
+    }
+
+    free(buf);
+
+#if !defined(_WIN32)
+    if (config.getBoolValue("usefbo"))
+    {
+        glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+        if (mFboId)
+        {
+            glDeleteFramebuffersEXT(1, &mFboId);
+            mFboId = 0;
+        }
+        glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
+        if (mRboId)
+        {
+            glDeleteRenderbuffersEXT(1, &mRboId);
+            mRboId = 0;
+        }
+        if (mTextureId)
+        {
+            glDeleteTextures(1, &mTextureId);
+            mTextureId = 0;
+        }
+    }
+#endif
+
+    glPixelStorei(GL_PACK_ALIGNMENT, pack);
+
+    if (SDL_MUSTLOCK(screenshot))
+        SDL_UnlockSurface(screenshot);
+
+    return screenshot;
+}
+
+bool SafeOpenGLGraphics::pushClipArea(gcn::Rectangle area)
+{
+    int transX = 0;
+    int transY = 0;
+
+    if (!mClipStack.empty())
+    {
+        const gcn::ClipRectangle &clipArea = mClipStack.top();
+        transX = -clipArea.xOffset;
+        transY = -clipArea.yOffset;
+    }
+
+    bool result = gcn::Graphics::pushClipArea(area);
+
+    const gcn::ClipRectangle &clipArea = mClipStack.top();
+    transX += clipArea.xOffset;
+    transY += clipArea.yOffset;
+
+    glPushMatrix();
+    glTranslatef(static_cast<GLfloat>(transX),
+                 static_cast<GLfloat>(transY), 0);
+    glScissor(clipArea.x, mTarget->h - clipArea.y - clipArea.height,
+        clipArea.width, clipArea.height);
+
+    return result;
+}
+
+void SafeOpenGLGraphics::popClipArea()
+{
+    gcn::Graphics::popClipArea();
+
+    if (mClipStack.empty())
+        return;
+
+    glPopMatrix();
+    const gcn::ClipRectangle &clipArea = mClipStack.top();
+    glScissor(clipArea.x, mTarget->h - clipArea.y - clipArea.height,
+        clipArea.width, clipArea.height);
+}
+
+void SafeOpenGLGraphics::setColor(const gcn::Color& color)
+{
+    mColor = color;
+    glColor4ub(static_cast<GLubyte>(color.r),
+               static_cast<GLubyte>(color.g),
+               static_cast<GLubyte>(color.b),
+               static_cast<GLubyte>(color.a));
+
+    mColorAlpha = (color.a != 255);
+}
+
+void SafeOpenGLGraphics::drawPoint(int x, int y)
+{
+    setTexturingAndBlending(false);
+
+    glBegin(GL_POINTS);
+    glVertex2i(x, y);
+    glEnd();
+}
+
+void SafeOpenGLGraphics::drawLine(int x1, int y1, int x2, int y2)
+{
+    setTexturingAndBlending(false);
+
+    glBegin(GL_LINES);
+    glVertex2f(static_cast<float>(x1) + 0.5f, static_cast<float>(y1) + 0.5f);
+    glVertex2f(static_cast<float>(x2) + 0.5f, static_cast<float>(y2) + 0.5f);
+    glEnd();
+
+    glBegin(GL_POINTS);
+    glVertex2f(static_cast<float>(x2) + 0.5f, static_cast<float>(y2) + 0.5f);
+    glEnd();
+}
+
+void SafeOpenGLGraphics::drawRectangle(const gcn::Rectangle& rect)
+{
+    drawRectangle(rect, false);
+}
+
+void SafeOpenGLGraphics::fillRectangle(const gcn::Rectangle& rect)
+{
+    drawRectangle(rect, true);
+}
+
+void SafeOpenGLGraphics::setTargetPlane(int width A_UNUSED, int height A_UNUSED)
+{
+}
+
+void SafeOpenGLGraphics::setTexturingAndBlending(bool enable)
+{
+    if (enable)
+    {
+        if (!mTexture)
+        {
+            glEnable(OpenGLImageHelper::mTextureType);
+            mTexture = true;
+        }
+
+        if (!mAlpha)
+        {
+            glEnable(GL_BLEND);
+            mAlpha = true;
+        }
+    }
+    else
+    {
+        mLastImage = 0;
+        if (mAlpha && !mColorAlpha)
+        {
+            glDisable(GL_BLEND);
+            mAlpha = false;
+        }
+        else if (!mAlpha && mColorAlpha)
+        {
+            glEnable(GL_BLEND);
+            mAlpha = true;
+        }
+
+        if (mTexture)
+        {
+            glDisable(OpenGLImageHelper::mTextureType);
+            mTexture = false;
+        }
+    }
+}
+
+void SafeOpenGLGraphics::drawRectangle(const gcn::Rectangle& rect, bool filled)
+{
+    const float offset = filled ? 0 : 0.5f;
+
+    setTexturingAndBlending(false);
+
+    glBegin(filled ? GL_QUADS : GL_LINE_LOOP);
+    glVertex2f(static_cast<float>(rect.x) + offset,
+        static_cast<float>(rect.y) + offset);
+    glVertex2f(static_cast<float>(rect.x + rect.width) - offset,
+        static_cast<float>(rect.y) + offset);
+    glVertex2f(static_cast<float>(rect.x + rect.width) - offset,
+        static_cast<float>(rect.y + rect.height) - offset);
+    glVertex2f(static_cast<float>(rect.x) + offset,
+        static_cast<float>(rect.y + rect.height) - offset);
+    glEnd();
+}
+
+void SafeOpenGLGraphics::bindTexture(GLenum target, GLuint texture)
+{
+    if (mLastImage != texture)
+    {
+        mLastImage = texture;
+        glBindTexture(target, texture);
+    }
+}
+
+#endif // USE_OPENGL