mobileopenglgraphics.cpp

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/*
 * The ManaPlus Client
 * Copyright (C) 2004-2009 The Mana World Development Team
 * Copyright (C) 2009-2010 The Mana Developers
 * Copyright (C) 2011-2018 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/>.
 */

#if defined(USE_OPENGL) && !defined(__native_client__)

#include "render/mobileopenglgraphics.h"

#ifdef OPENGLERRORS
#include "graphicsmanager.h"
#endif // OPENGLERRORS

#include "render/opengl/mgl.h"
#ifdef __native_client__
#include "render/opengl/naclglfunctions.h"
#endif // __native_client__

#include "render/vertexes/imagecollection.h"

#include "resources/imagerect.h"
#include "resources/openglimagehelper.h"

#include "resources/image/image.h"

#include "utils/sdlcheckutils.h"

#include "debug.h"

#define vertFill2D(tVar, vVar, x1, y1, x2, y2, dstX, dstY, w, h) \
 tVar[vp + 0] = x1; \
 tVar[vp + 1] = y1; \
 tVar[vp + 2] = x2; \
 tVar[vp + 3] = y1; \
 tVar[vp + 4] = x2; \
 tVar[vp + 5] = y2; \
 tVar[vp + 6] = x1; \
 tVar[vp + 7] = y1; \
 tVar[vp + 8] = x1; \
 tVar[vp + 9] = y2; \
 tVar[vp + 10] = x2; \
 tVar[vp + 11] = y2; \
 vVar[vp + 0] = static_cast<GLshort>(dstX); \
 vVar[vp + 1] = static_cast<GLshort>(dstY); \
 vVar[vp + 2] = static_cast<GLshort>(dstX + w); \
 vVar[vp + 3] = static_cast<GLshort>(dstY); \
 vVar[vp + 4] = static_cast<GLshort>(dstX + w); \
 vVar[vp + 5] = static_cast<GLshort>(dstY + h); \
 vVar[vp + 6] = static_cast<GLshort>(dstX); \
 vVar[vp + 7] = static_cast<GLshort>(dstY); \
 vVar[vp + 8] = static_cast<GLshort>(dstX); \
 vVar[vp + 9] = static_cast<GLshort>(dstY + h); \
 vVar[vp + 10] = static_cast<GLshort>(dstX + w); \
 vVar[vp + 11] = static_cast<GLshort>(dstY + h);

GLuint MobileOpenGLGraphics::mTextureBinded = 0;
#ifdef DEBUG_DRAW_CALLS
unsigned int MobileOpenGLGraphics::mDrawCalls = 0;
unsigned int MobileOpenGLGraphics::mLastDrawCalls = 0;
#endif // DEBUG_DRAW_CALLS

MobileOpenGLGraphics::MobileOpenGLGraphics() :
 mFloatTexArray(nullptr),
 mShortVertArray(nullptr),
 mFloatTexArrayCached(nullptr),
 mShortVertArrayCached(nullptr),
 mAlphaCached(1.0F),
 mVpCached(0),
 mTexture(false),
 mIsByteColor(false),
 mByteColor(),
 mImageCached(0),
 mFloatColor(1.0F),
 mMaxVertices(500),
 mColorAlpha(false),
#ifdef DEBUG_BIND_TEXTURE
 mOldTexture(),
 mOldTextureId(0),
#endif // DEBUG_BIND_TEXTURE
 mFbo()
{
 mOpenGL = RENDER_GLES_OPENGL;
 mName = "mobile OpenGL ES";
}

MobileOpenGLGraphics::~MobileOpenGLGraphics()
{
 deleteArraysInternal();
}

void MobileOpenGLGraphics::postInit() restrict2
{
// glesTest();
}

void MobileOpenGLGraphics::initArrays(const int vertCount) restrict2
{
 mMaxVertices = vertCount;
 if (mMaxVertices < 500)
 mMaxVertices = 500;
 else if (mMaxVertices > 1024)
 mMaxVertices = 1024;

 // need alocate small size, after if limit reached reallocate to double size
 const size_t sz = mMaxVertices * 4 + 30;
 vertexBufSize = mMaxVertices;
 if (mFloatTexArray == nullptr)
 mFloatTexArray = new GLfloat[sz];
 if (mShortVertArray == nullptr)
 mShortVertArray = new GLshort[sz];
 if (mFloatTexArrayCached == nullptr)
 mFloatTexArrayCached = new GLfloat[sz];
 if (mShortVertArrayCached == nullptr)
 mShortVertArrayCached = new GLshort[sz];
}

void MobileOpenGLGraphics::deleteArrays() restrict2
{
 deleteArraysInternal();
}

void MobileOpenGLGraphics::deleteArraysInternal() restrict2
{
 delete [] mFloatTexArray;
 mFloatTexArray = nullptr;
 delete [] mShortVertArray;
 mShortVertArray = nullptr;
 delete [] mFloatTexArrayCached;
 mFloatTexArrayCached = nullptr;
 delete [] mShortVertArrayCached;
 mShortVertArrayCached = nullptr;
}

bool MobileOpenGLGraphics::setVideoMode(const int w, const int h,
 const int scale,
 const int bpp,
 const bool fs,
 const bool hwaccel,
 const bool resize,
 const bool noFrame,
 const bool allowHighDPI) restrict2
{
 setMainFlags(w, h,
 scale,
 bpp,
 fs,
 hwaccel,
 resize,
 noFrame,
 allowHighDPI);

 return setOpenGLMode();
}

static inline void drawQuad(const Image *restrict const image,
 const int srcX,
 const int srcY,
 const int dstX,
 const int dstY,
 const int width,
 const int height) A_NONNULL(1) A_INLINE;

static inline void drawQuad(const Image *restrict const image,
 const int srcX,
 const int srcY,
 const int dstX,
 const int dstY,
 const int width,
 const int height)
{
// if (OpenGLImageHelper::mTextureType == GL_TEXTURE_2D)
 {
 const float tw = static_cast<float>(image->mTexWidth);
 const float th = static_cast<float>(image->mTexHeight);
 // Find OpenGL normalized texture coordinates.
 const float texX1 = static_cast<float>(srcX) / tw;
 const float texY1 = static_cast<float>(srcY) / th;
 const float texX2 = static_cast<float>(srcX + width) / tw;
 const float texY2 = static_cast<float>(srcY + height) / th;

 GLfloat tex[] =
 {
 texX1, texY1,
 texX2, texY1,
 texX1, texY2,
 texX2, texY2
 };

 GLshort vert[] =
 {
 static_cast<GLshort>(dstX), static_cast<GLshort>(dstY),
 static_cast<GLshort>(dstX + width), static_cast<GLshort>(dstY),
 static_cast<GLshort>(dstX), static_cast<GLshort>(dstY + height),
 static_cast<GLshort>(dstX + width),
 static_cast<GLshort>(dstY + height)
 };

 glVertexPointer(2, GL_SHORT, 0, &vert);
 glTexCoordPointer(2, GL_FLOAT, 0, &tex);

#ifdef DEBUG_DRAW_CALLS
 MobileOpenGLGraphics::mDrawCalls ++;
#endif // DEBUG_DRAW_CALLS
 mglDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
#ifdef OPENGLERRORS
 graphicsManager.logError();
#endif // OPENGLERRORS
 }
}

static inline void drawRescaledQuad(const Image *restrict const image,
 const int srcX, const int srcY,
 const int dstX, const int dstY,
 const int width, const int height,
 const int desiredWidth,
 const int desiredHeight)
 A_NONNULL(1) A_INLINE;

static inline void drawRescaledQuad(const Image *restrict const image,
 const int srcX, const int srcY,
 const int dstX, const int dstY,
 const int width, const int height,
 const int desiredWidth,
 const int desiredHeight)
{
// if (OpenGLImageHelper::mTextureType == GL_TEXTURE_2D)
 {
 const float tw = static_cast<float>(image->mTexWidth);
 const float th = static_cast<float>(image->mTexHeight);
 // Find OpenGL normalized texture coordinates.
 const float texX1 = static_cast<float>(srcX) / tw;
 const float texY1 = static_cast<float>(srcY) / th;
 const float texX2 = static_cast<float>(srcX + width) / tw;
 const float texY2 = static_cast<float>(srcY + height) / th;

 GLfloat tex[] =
 {
 texX1, texY1,
 texX2, texY1,
 texX1, texY2,
 texX2, texY2
 };

 GLshort vert[] =
 {
 static_cast<GLshort>(dstX), static_cast<GLshort>(dstY),
 static_cast<GLshort>(dstX + desiredWidth),
 static_cast<GLshort>(dstY),
 static_cast<GLshort>(dstX), static_cast<GLshort>(
 dstY + desiredHeight),
 static_cast<GLshort>(dstX + desiredWidth),
 static_cast<GLshort>(dstY + desiredHeight)
 };
 glVertexPointer(2, GL_SHORT, 0, &vert);
 glTexCoordPointer(2, GL_FLOAT, 0, &tex);

#ifdef DEBUG_DRAW_CALLS
 MobileOpenGLGraphics::mDrawCalls ++;
#endif // DEBUG_DRAW_CALLS
 mglDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
#ifdef OPENGLERRORS
 graphicsManager.logError();
#endif // OPENGLERRORS
 }
}

void MobileOpenGLGraphics::drawImage(const Image *restrict const image,
 int dstX, int dstY) restrict2
{
 drawImageInline(image, dstX, dstY);
}

void MobileOpenGLGraphics::drawImageInline(const Image *restrict const image,
 int dstX, int dstY) restrict2
{
 FUNC_BLOCK("Graphics::drawImage", 1)
 if (image == nullptr)
 return;

 setColorAlpha(image->mAlpha);
#ifdef DEBUG_BIND_TEXTURE
 debugBindTexture(image);
#endif // DEBUG_BIND_TEXTURE
 bindTexture(OpenGLImageHelper::mTextureType, image->mGLImage);
 enableTexturingAndBlending();

 const SDL_Rect &imageRect = image->mBounds;
 drawQuad(image, imageRect.x, imageRect.y,
 dstX, dstY, imageRect.w, imageRect.h);
}

void MobileOpenGLGraphics::copyImage(const Image *restrict const image,
 int dstX, int dstY) restrict2
{
 drawImageInline(image, dstX, dstY);
}

void MobileOpenGLGraphics::drawImageCached(const Image *restrict const image,
 int x, int y) restrict2
{
 if (image == nullptr)
 return;

 if (image->mGLImage != mImageCached)
 {
 completeCache();
 mImageCached = image->mGLImage;
 mAlphaCached = image->mAlpha;
 }

 const SDL_Rect &imageRect = image->mBounds;
 const int srcX = imageRect.x;
 const int srcY = imageRect.y;
 const int w = imageRect.w;
 const int h = imageRect.h;

 if (w == 0 || h == 0)
 return;

 const float tw = static_cast<float>(image->mTexWidth);
 const float th = static_cast<float>(image->mTexHeight);

 const unsigned int vLimit = mMaxVertices * 4;

 unsigned int vp = mVpCached;

 // Draw a set of textured rectangles
// if (OpenGLImageHelper::mTextureType == GL_TEXTURE_2D)
 {
 float texX1 = static_cast<float>(srcX) / tw;
 float texY1 = static_cast<float>(srcY) / th;
 float texX2 = static_cast<float>(srcX + w) / tw;
 float texY2 = static_cast<float>(srcY + h) / th;

 vertFill2D(mFloatTexArrayCached, mShortVertArrayCached,
 texX1, texY1, texX2, texY2,
 x, y, w, h);

 vp += 12;
 if (vp >= vLimit)
 {
 completeCache();
 vp = 0;
 }
 else
 {
 mVpCached = vp;
 }
 }
}

void MobileOpenGLGraphics::drawPatternCached(const Image *restrict const image,
 const int x,
 const int y,
 const int w,
 const int h) restrict2
{
 if (image == nullptr)
 return;

 if (image->mGLImage != mImageCached)
 {
 completeCache();
 mImageCached = image->mGLImage;
 }

 const SDL_Rect &imageRect = image->mBounds;
 const int srcX = imageRect.x;
 const int srcY = imageRect.y;
 const int iw = imageRect.w;
 const int ih = imageRect.h;

 if (iw == 0 || ih == 0)
 return;

 const float tw = static_cast<float>(image->mTexWidth);
 const float th = static_cast<float>(image->mTexHeight);

 unsigned int vp = mVpCached;
 const unsigned int vLimit = mMaxVertices * 4;
 const float texX1 = static_cast<float>(srcX) / tw;
 const float texY1 = static_cast<float>(srcY) / th;

 for (int py = 0; py < h; py += ih)
 {
 const int height = (py + ih >= h) ? h - py : ih;
 const float texY2 = static_cast<float>(srcY + height) / th;
 const int dstY = y + py;
 for (int px = 0; px < w; px += iw)
 {
 const int width = (px + iw >= w) ? w - px : iw;
 const int dstX = x + px;

 const float texX2 = static_cast<float>(srcX + width) / tw;

 vertFill2D(mFloatTexArrayCached, mShortVertArrayCached,
 texX1, texY1, texX2, texY2,
 dstX, dstY, width, height);

 vp += 12;
 if (vp >= vLimit)
 {
 completeCache();
 vp = 0;
 }
 }
 }
 mVpCached = vp;
}

void MobileOpenGLGraphics::completeCache() restrict2
{
 if (mImageCached == 0U)
 return;

 setColorAlpha(mAlphaCached);
#ifdef DEBUG_BIND_TEXTURE
// debugBindTexture(image);
#endif // DEBUG_BIND_TEXTURE
 bindTexture(OpenGLImageHelper::mTextureType, mImageCached);
 enableTexturingAndBlending();

 drawTriangleArrayfsCached(mVpCached);
 mImageCached = 0;
 mVpCached = 0;
}

void MobileOpenGLGraphics::drawRescaledImage(const Image *restrict const image,
 int dstX, int dstY,
 const int desiredWidth,
 const int desiredHeight) restrict2
{
 FUNC_BLOCK("Graphics::drawRescaledImage", 1)
 if (image == nullptr)
 return;

 const SDL_Rect &imageRect = image->mBounds;

 // Just draw the image normally when no resizing is necessary,
 if (imageRect.w == desiredWidth && imageRect.h == desiredHeight)
 {
 drawImageInline(image, dstX, dstY);
 return;
 }

 setColorAlpha(image->mAlpha);
#ifdef DEBUG_BIND_TEXTURE
 debugBindTexture(image);
#endif // DEBUG_BIND_TEXTURE
 bindTexture(OpenGLImageHelper::mTextureType, image->mGLImage);
 enableTexturingAndBlending();

 // Draw a textured quad.
 drawRescaledQuad(image, imageRect.x, imageRect.y, dstX, dstY,
 imageRect.w, imageRect.h, desiredWidth, desiredHeight);
}

void MobileOpenGLGraphics::drawPattern(const Image *restrict const image,
 const int x, const int y,
 const int w, const int h) restrict2
{
 drawPatternInline(image, x, y, w, h);
}

void MobileOpenGLGraphics::drawPatternInline(const Image *restrict const image,
 const int x,
 const int y,
 const int w,
 const int h) restrict2
{
 FUNC_BLOCK("Graphics::drawPattern", 1)
 if (image == nullptr)
 return;

 const SDL_Rect &imageRect = image->mBounds;
 const int srcX = imageRect.x;
 const int srcY = imageRect.y;
 const int iw = imageRect.w;
 const int ih = imageRect.h;

 if (iw == 0 || ih == 0)
 return;

 const float tw = static_cast<float>(image->mTexWidth);
 const float th = static_cast<float>(image->mTexHeight);

 setColorAlpha(image->mAlpha);

#ifdef DEBUG_BIND_TEXTURE
 debugBindTexture(image);
#endif // DEBUG_BIND_TEXTURE
 bindTexture(OpenGLImageHelper::mTextureType, image->mGLImage);

 enableTexturingAndBlending();

 unsigned int vp = 0;
 const unsigned int vLimit = mMaxVertices * 4;
 // Draw a set of textured rectangles
 const float texX1 = static_cast<float>(srcX) / tw;
 const float texY1 = static_cast<float>(srcY) / th;

 for (int py = 0; py < h; py += ih)
 {
 const int height = (py + ih >= h) ? h - py : ih;
 const float texY2 = static_cast<float>(srcY + height) / th;
 const int dstY = y + py;
 for (int px = 0; px < w; px += iw)
 {
 const int width = (px + iw >= w) ? w - px : iw;
 const int dstX = x + px;

 const float texX2 = static_cast<float>(srcX + width) / tw;

 vertFill2D(mFloatTexArray, mShortVertArray,
 texX1, texY1, texX2, texY2,
 dstX, dstY, width, height);

 vp += 12;
 if (vp >= vLimit)
 {
 drawTriangleArrayfs(vp);
 vp = 0;
 }
 }
 }
 if (vp > 0)
 drawTriangleArrayfs(vp);
}

void MobileOpenGLGraphics::drawRescaledPattern(const Image *
 restrict const image,
 const int x, const int y,
 const int w, const int h,
 const int scaledWidth,
 const int scaledHeight)
 restrict2
{
 if (image == nullptr)
 return;

 if (scaledWidth == 0 || scaledHeight == 0)
 return;

 const SDL_Rect &imageRect = image->mBounds;
 const int srcX = imageRect.x;
 const int srcY = imageRect.y;
 const int iw = imageRect.w;
 const int ih = imageRect.h;
 if (iw == 0 || ih == 0)
 return;

 setColorAlpha(image->mAlpha);

#ifdef DEBUG_BIND_TEXTURE
 debugBindTexture(image);
#endif // DEBUG_BIND_TEXTURE
 bindTexture(OpenGLImageHelper::mTextureType, image->mGLImage);

 enableTexturingAndBlending();

 unsigned int vp = 0;
 const unsigned int vLimit = mMaxVertices * 4;

 // Draw a set of textured rectangles
 const float tw = static_cast<float>(image->mTexWidth);
 const float th = static_cast<float>(image->mTexHeight);

 const float texX1 = static_cast<float>(srcX) / tw;
 const float texY1 = static_cast<float>(srcY) / th;

 const float tFractionW = iw / tw;
 const float tFractionH = ih / th;

 for (int py = 0; py < h; py += scaledHeight)
 {
 const int height = (py + scaledHeight >= h)
 ? h - py : scaledHeight;
 const int dstY = y + py;
 const float visibleFractionH = static_cast<float>(height)
 / scaledHeight;
 const float texY2 = texY1 + tFractionH * visibleFractionH;
 for (int px = 0; px < w; px += scaledWidth)
 {
 const int width = (px + scaledWidth >= w)
 ? w - px : scaledWidth;
 const int dstX = x + px;
 const float visibleFractionW = static_cast<float>(width)
 / scaledWidth;
 const float texX2 = texX1 + tFractionW * visibleFractionW;

 vertFill2D(mFloatTexArray, mShortVertArray,
 texX1, texY1, texX2, texY2,
 dstX, dstY, width, height);

 vp += 12;
 if (vp >= vLimit)
 {
 drawTriangleArrayfs(vp);
 vp = 0;
 }
 }
 }
 if (vp > 0)
 drawTriangleArrayfs(vp);
}

inline void MobileOpenGLGraphics::drawVertexes(const
 OpenGLGraphicsVertexes
 &restrict ogl) restrict2
{
 const STD_VECTOR<GLshort*> &shortVertPool = ogl.mShortVertPool;
 STD_VECTOR<GLshort*>::const_iterator iv;
 const STD_VECTOR<GLshort*>::const_iterator iv_end = shortVertPool.end();
 const STD_VECTOR<int> &vp = ogl.mVp;
 STD_VECTOR<int>::const_iterator ivp;
 const STD_VECTOR<int>::const_iterator ivp_end = vp.end();

 // Draw a set of textured rectangles
// if (OpenGLImageHelper::mTextureType == GL_TEXTURE_2D)
 {
 const STD_VECTOR<GLfloat*> &floatTexPool = ogl.mFloatTexPool;
 STD_VECTOR<GLfloat*>::const_iterator ft;
 const STD_VECTOR<GLfloat*>::const_iterator
 ft_end = floatTexPool.end();

 for (iv = shortVertPool.begin(), ft = floatTexPool.begin(),
 ivp = vp.begin();
 iv != iv_end && ft != ft_end && ivp != ivp_end;
 ++ iv, ++ ft, ++ ivp)
 {
 drawTriangleArrayfs(*iv, *ft, *ivp);
 }
 }
}

void MobileOpenGLGraphics::calcPattern(ImageVertexes *restrict const vert,
 const Image *restrict const image,
 const int x,
 const int y,
 const int w,
 const int h) const restrict2
{
 calcPatternInline(vert, image, x, y, w, h);
}

void MobileOpenGLGraphics::calcPatternInline(ImageVertexes *
 restrict const vert,
 const Image *restrict const image,
 const int x,
 const int y,
 const int w,
 const int h) const restrict2
{
 if (image == nullptr || vert == nullptr)
 return;

 const SDL_Rect &imageRect = image->mBounds;
 const int srcX = imageRect.x;
 const int srcY = imageRect.y;
 const int iw = imageRect.w;
 const int ih = imageRect.h;

 if (iw == 0 || ih == 0)
 return;

 const float tw = static_cast<float>(image->mTexWidth);
 const float th = static_cast<float>(image->mTexHeight);

 const unsigned int vLimit = mMaxVertices * 4;

 OpenGLGraphicsVertexes &ogl = vert->ogl;
 unsigned int vp = ogl.continueVp();

 // Draw a set of textured rectangles
// if (OpenGLImageHelper::mTextureType == GL_TEXTURE_2D)
 {
 const float texX1 = static_cast<float>(srcX) / tw;
 const float texY1 = static_cast<float>(srcY) / th;

 GLfloat *floatTexArray = ogl.continueFloatTexArray();
 GLshort *shortVertArray = ogl.continueShortVertArray();

 for (int py = 0; py < h; py += ih)
 {
 const int height = (py + ih >= h) ? h - py : ih;
 const int dstY = y + py;
 const float texY2 = static_cast<float>(srcY + height) / th;
 for (int px = 0; px < w; px += iw)
 {
 const int width = (px + iw >= w) ? w - px : iw;
 const int dstX = x + px;
 const float texX2 = static_cast<float>(srcX + width) / tw;

 vertFill2D(floatTexArray, shortVertArray,
 texX1, texY1, texX2, texY2,
 dstX, dstY, width, height);

 vp += 12;
 if (vp >= vLimit)
 {
 floatTexArray = ogl.switchFloatTexArray();
 shortVertArray = ogl.switchShortVertArray();
 ogl.switchVp(vp);
 vp = 0;
 }
 }
 }
 }
 ogl.switchVp(vp);
}

void MobileOpenGLGraphics::calcTileCollection(ImageCollection *
 restrict const vertCol,
 const Image *
 restrict const image,
 int x, int y) restrict2
{
 if (vertCol == nullptr || image == nullptr)
 return;
 if (vertCol->currentGLImage != image->mGLImage)
 {
 ImageVertexes *const vert = new ImageVertexes;
 vertCol->currentGLImage = image->mGLImage;
 vertCol->currentVert = vert;
 vert->image = image;
 vertCol->draws.push_back(vert);
 calcTileVertexesInline(vert, image, x, y);
 }
 else
 {
 calcTileVertexesInline(vertCol->currentVert, image, x, y);
 }
}

void MobileOpenGLGraphics::drawTileCollection(const ImageCollection *
 restrict const vertCol)
 restrict2
{
 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 image = vert->image;

 setColorAlpha(image->mAlpha);
#ifdef DEBUG_BIND_TEXTURE
 debugBindTexture(image);
#endif // DEBUG_BIND_TEXTURE
 bindTexture(OpenGLImageHelper::mTextureType, image->mGLImage);
 enableTexturingAndBlending();
 drawVertexes(vert->ogl);
 }
}

void MobileOpenGLGraphics::calcPattern(ImageCollection *restrict const vertCol,
 const Image *restrict const image,
 const int x,
 const int y,
 const int w,
 const int h) const restrict2
{
 if (vertCol == nullptr || image == nullptr)
 return;
 ImageVertexes *vert = nullptr;
 if (vertCol->currentGLImage != image->mGLImage)
 {
 vert = new ImageVertexes;
 vertCol->currentGLImage = image->mGLImage;
 vertCol->currentVert = vert;
 vert->image = image;
 vertCol->draws.push_back(vert);
 }
 else
 {
 vert = vertCol->currentVert;
 }

 calcPatternInline(vert, image, x, y, w, h);
}

void MobileOpenGLGraphics::calcTileVertexes(ImageVertexes *restrict const vert,
 const Image *restrict const image,
 int dstX, int dstY) const restrict2
{
 calcTileVertexesInline(vert, image, dstX, dstY);
}

void MobileOpenGLGraphics::calcTileVertexesInline(ImageVertexes *
 restrict const vert,
 const Image *
 restrict const image,
 int dstX,
 int dstY) const restrict2
{
 const SDL_Rect &imageRect = image->mBounds;
 const int srcX = imageRect.x;
 const int srcY = imageRect.y;
 const int w = imageRect.w;
 const int h = imageRect.h;

 if (w == 0 || h == 0)
 return;

 const float tw = static_cast<float>(image->mTexWidth);
 const float th = static_cast<float>(image->mTexHeight);

 const unsigned int vLimit = mMaxVertices * 4;

 OpenGLGraphicsVertexes &ogl = vert->ogl;

// STD_VECTOR<int> *vps = ogl.getVp();
 unsigned int vp = ogl.continueVp();

 // Draw a set of textured rectangles
// if (OpenGLImageHelper::mTextureType == GL_TEXTURE_2D)
 {
 float texX1 = static_cast<float>(srcX) / tw;
 float texY1 = static_cast<float>(srcY) / th;
 float texX2 = static_cast<float>(srcX + w) / tw;
 float texY2 = static_cast<float>(srcY + h) / th;

 GLfloat *const floatTexArray = ogl.continueFloatTexArray();
 GLshort *const shortVertArray = ogl.continueShortVertArray();

 vertFill2D(floatTexArray, shortVertArray,
 texX1, texY1, texX2, texY2,
 dstX, dstY, w, h);

 vp += 12;
 if (vp >= vLimit)
 {
 ogl.switchFloatTexArray();
 ogl.switchShortVertArray();
 ogl.switchVp(vp);
 vp = 0;
 }
 }
 ogl.switchVp(vp);
}

void MobileOpenGLGraphics::drawTileVertexes(const ImageVertexes *
 restrict const vert) restrict2
{
 if (vert == nullptr)
 return;
 const Image *const image = vert->image;

 setColorAlpha(image->mAlpha);
#ifdef DEBUG_BIND_TEXTURE
 debugBindTexture(image);
#endif // DEBUG_BIND_TEXTURE
 bindTexture(OpenGLImageHelper::mTextureType, image->mGLImage);
 enableTexturingAndBlending();
 drawVertexes(vert->ogl);
}

void MobileOpenGLGraphics::calcWindow(ImageCollection *restrict const vertCol,
 const int x, const int y,
 const int w, const int h,
 const ImageRect &restrict imgRect)
 restrict2
{
 ImageVertexes *vert = nullptr;
 const Image *const image = imgRect.grid[4];
 if (image == nullptr)
 return;
 if (vertCol->currentGLImage != image->mGLImage)
 {
 vert = new ImageVertexes;
 vertCol->currentGLImage = image->mGLImage;
 vertCol->currentVert = vert;
 vert->image = image;
 vertCol->draws.push_back(vert);
 }
 else
 {
 vert = vertCol->currentVert;
 }
 calcImageRect(vert, x, y, w, h, imgRect);
}


void MobileOpenGLGraphics::updateScreen() restrict2
{
 BLOCK_START("Graphics::updateScreen")
// glFlush();
// glFinish();
#ifdef DEBUG_DRAW_CALLS
 mLastDrawCalls = mDrawCalls;
 mDrawCalls = 0;
#endif // DEBUG_DRAW_CALLS
#ifdef USE_SDL2
 SDL_GL_SwapWindow(mWindow);
#else // USE_SDL2

 SDL_GL_SwapBuffers();
#endif // USE_SDL2
#ifdef DEBUG_OPENGL
 if (isGLNotNull(mglFrameTerminator))
 mglFrameTerminator();
#endif // DEBUG_OPENGL

 BLOCK_END("Graphics::updateScreen")
}

void MobileOpenGLGraphics::beginDraw() restrict2
{
 glMatrixMode(GL_TEXTURE);
 glLoadIdentity();

 glMatrixMode(GL_PROJECTION);
 glLoadIdentity();

#ifdef ANDROID
 glOrthof(0.0, static_cast<float>(mRect.w),
 static_cast<float>(mRect.h),
 0.0, -1.0, 1.0);
#else // ANDROID

 glOrtho(0.0, static_cast<double>(mRect.w),
 static_cast<double>(mRect.h),
 0.0, -1.0, 1.0);
#endif // ANDROID

 glMatrixMode(GL_MODELVIEW);
 glLoadIdentity();

 setOpenGLFlags();
 mglDisable(GL_LIGHTING);
 mglDisable(GL_FOG);
 mglDisable(GL_COLOR_MATERIAL);

 glShadeModel(GL_FLAT);

 glEnableClientState(GL_VERTEX_ARRAY);
 glDisableClientState(GL_TEXTURE_COORD_ARRAY);

#ifndef ANDROID
 mglHint(GL_LINE_SMOOTH_HINT, GL_FASTEST);
 mglHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
 mglHint(GL_POINT_SMOOTH_HINT, GL_FASTEST);
 mglHint(GL_POLYGON_SMOOTH_HINT, GL_FASTEST);
#endif // ANDROID

 pushClipArea(Rect(0, 0, mRect.w, mRect.h));
}

void MobileOpenGLGraphics::endDraw() restrict2
{
 popClipArea();
}

void MobileOpenGLGraphics::pushClipArea(const Rect &restrict area) restrict2
{
 int transX = 0;
 int transY = 0;

 if (!mClipStack.empty())
 {
 const ClipRect &clipArea = mClipStack.top();
 transX = -clipArea.xOffset;
 transY = -clipArea.yOffset;
 }

 Graphics::pushClipArea(area);

 const ClipRect &clipArea = mClipStack.top();
 transX += clipArea.xOffset;
 transY += clipArea.yOffset;

 if (transX != 0 || transY != 0)
 {
 glTranslatef(static_cast<GLfloat>(transX),
 static_cast<GLfloat>(transY), 0);
 }
 mglScissor(clipArea.x * mScale,
 (mRect.h - clipArea.y - clipArea.height) * mScale,
 clipArea.width * mScale,
 clipArea.height * mScale);
}

void MobileOpenGLGraphics::popClipArea() restrict2
{
 if (mClipStack.empty())
 return;

 const ClipRect &clipArea1 = mClipStack.top();
 int transX = -clipArea1.xOffset;
 int transY = -clipArea1.yOffset;

 Graphics::popClipArea();

 if (mClipStack.empty())
 return;

 const ClipRect &clipArea = mClipStack.top();
 transX += clipArea.xOffset;
 transY += clipArea.yOffset;
 if (transX != 0 || transY != 0)
 {
 glTranslatef(static_cast<GLfloat>(transX),
 static_cast<GLfloat>(transY), 0);
 }
 mglScissor(clipArea.x * mScale,
 (mRect.h - clipArea.y - clipArea.height) * mScale,
 clipArea.width * mScale,
 clipArea.height * mScale);
}

#ifdef ANDROID
void MobileOpenGLGraphics::drawPoint(int x A_UNUSED, int y A_UNUSED) restrict2
#else // ANDROID
void MobileOpenGLGraphics::drawPoint(int x, int y) restrict2
#endif // ANDROID
{
 disableTexturingAndBlending();
 restoreColor();

#ifdef ANDROID
 // TODO need fix
#else // ANDROID

 glBegin(GL_POINTS);
 glVertex2i(x, y);
 glEnd();
#endif // ANDROID
}

void MobileOpenGLGraphics::drawLine(int x1, int y1,
 int x2, int y2) restrict2
{
 disableTexturingAndBlending();
 restoreColor();

 mShortVertArray[0] = static_cast<GLshort>(x1);
 mShortVertArray[1] = static_cast<GLshort>(y1);
 mShortVertArray[2] = static_cast<GLshort>(x2);
 mShortVertArray[3] = static_cast<GLshort>(y2);

 drawLineArrays(4);
}

void MobileOpenGLGraphics::drawRectangle(const Rect &restrict rect) restrict2
{
 drawRectangle(rect, false);
}

void MobileOpenGLGraphics::fillRectangle(const Rect &restrict rect) restrict2
{
 drawRectangle(rect, true);
}

void MobileOpenGLGraphics::enableTexturingAndBlending() restrict2
{
 if (!mTexture)
 {
 mglEnable(OpenGLImageHelper::mTextureType);
 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 mTexture = true;
 }

 if (!mAlpha)
 {
 mglEnable(GL_BLEND);
 mAlpha = true;
 }
}

void MobileOpenGLGraphics::disableTexturingAndBlending() restrict2
{
 mTextureBinded = 0;
 if (mAlpha && !mColorAlpha)
 {
 mglDisable(GL_BLEND);
 mAlpha = false;
 }
 else if (!mAlpha && mColorAlpha)
 {
 mglEnable(GL_BLEND);
 mAlpha = true;
 }

 if (mTexture)
 {
 mglDisable(OpenGLImageHelper::mTextureType);
 glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 mTexture = false;
 }
}

void MobileOpenGLGraphics::drawRectangle(const Rect &restrict rect,
 const bool filled) restrict2
{
 BLOCK_START("Graphics::drawRectangle")
 disableTexturingAndBlending();
 restoreColor();

 const GLshort x = static_cast<GLshort>(rect.x);
 const GLshort y = static_cast<GLshort>(rect.y);
 const GLshort width = static_cast<GLshort>(rect.width);
 const GLshort height = static_cast<GLshort>(rect.height);
 const GLshort xw = static_cast<GLshort>(rect.x + width);
 const GLshort yh = static_cast<GLshort>(rect.y + height);

 if (filled)
 {
 GLshort vert[] =
 {
 x, y,
 xw, y,
 x, yh,
 xw, yh
 };

 glVertexPointer(2, GL_SHORT, 0, &vert);
#ifdef DEBUG_DRAW_CALLS
 mDrawCalls ++;
#endif // DEBUG_DRAW_CALLS

 mglDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
#ifdef OPENGLERRORS
 graphicsManager.logError();
#endif // OPENGLERRORS
 }
 else
 {
 GLshort vert[] =
 {
 x, y,
 xw, y,
 xw, yh,
 x, yh
 };

 glVertexPointer(2, GL_SHORT, 0, &vert);
#ifdef DEBUG_DRAW_CALLS
 mDrawCalls ++;
#endif // DEBUG_DRAW_CALLS

 mglDrawArrays(GL_LINE_LOOP, 0, 4);
#ifdef OPENGLERRORS
 graphicsManager.logError();
#endif // OPENGLERRORS
 }
 BLOCK_END("Graphics::drawRectangle")
}

void MobileOpenGLGraphics::drawNet(const int x1, const int y1,
 const int x2, const int y2,
 const int width, const int height) restrict2
{
 unsigned int vp = 0;
 const unsigned int vLimit = mMaxVertices * 4;

 disableTexturingAndBlending();
 restoreColor();

 const GLshort xs1 = static_cast<GLshort>(x1);
 const GLshort xs2 = static_cast<GLshort>(x2);
 const GLshort ys1 = static_cast<GLshort>(y1);
 const GLshort ys2 = static_cast<GLshort>(y2);
 const int16_t width1 = CAST_S16(width);
 const int16_t height1 = CAST_S16(height);

 for (int16_t y = CAST_S16(y1); y < y2; y += height1)
 {
 mShortVertArray[vp + 0] = xs1;
 mShortVertArray[vp + 1] = y;

 mShortVertArray[vp + 2] = xs2;
 mShortVertArray[vp + 3] = y;

 vp += 4;
 if (vp >= vLimit)
 {
 drawLineArrays(vp);
 vp = 0;
 }
 }

 for (int16_t x = CAST_S16(x1); x < x2; x += width1)
 {
 mShortVertArray[vp + 0] = x;
 mShortVertArray[vp + 1] = ys1;

 mShortVertArray[vp + 2] = x;
 mShortVertArray[vp + 3] = ys2;

 vp += 4;
 if (vp >= vLimit)
 {
 drawLineArrays(vp);
 vp = 0;
 }
 }

 if (vp > 0)
 drawLineArrays(vp);
}

void MobileOpenGLGraphics::bindTexture(const GLenum target,
 const GLuint texture)
{
 if (mTextureBinded != texture)
 {
 mTextureBinded = texture;
 mglBindTexture(target, texture);
 }
}

inline void MobileOpenGLGraphics::drawTriangleArrayfs(const int size) restrict2
{
 glVertexPointer(2, GL_SHORT, 0, mShortVertArray);
 glTexCoordPointer(2, GL_FLOAT, 0, mFloatTexArray);

#ifdef DEBUG_DRAW_CALLS
 mDrawCalls ++;
#endif // DEBUG_DRAW_CALLS

 mglDrawArrays(GL_TRIANGLES, 0, size / 2);
#ifdef OPENGLERRORS
 graphicsManager.logError();
#endif // OPENGLERRORS
}

inline void MobileOpenGLGraphics::drawTriangleArrayfsCached(const int size)
 restrict2
{
 glVertexPointer(2, GL_SHORT, 0, mShortVertArrayCached);
 glTexCoordPointer(2, GL_FLOAT, 0, mFloatTexArrayCached);

#ifdef DEBUG_DRAW_CALLS
 mDrawCalls ++;
#endif // DEBUG_DRAW_CALLS

 mglDrawArrays(GL_TRIANGLES, 0, size / 2);
#ifdef OPENGLERRORS
 graphicsManager.logError();
#endif // OPENGLERRORS
}

inline void MobileOpenGLGraphics::drawTriangleArrayfs(const GLshort *restrict
 const shortVertArray,
 const GLfloat *restrict
 const floatTexArray,
 const int size) restrict2
{
 glVertexPointer(2, GL_SHORT, 0, shortVertArray);
 glTexCoordPointer(2, GL_FLOAT, 0, floatTexArray);

#ifdef DEBUG_DRAW_CALLS
 mDrawCalls ++;
#endif // DEBUG_DRAW_CALLS

 mglDrawArrays(GL_TRIANGLES, 0, size / 2);
#ifdef OPENGLERRORS
 graphicsManager.logError();
#endif // OPENGLERRORS
}

inline void MobileOpenGLGraphics::drawLineArrays(const int size) restrict2
{
 glVertexPointer(2, GL_SHORT, 0, mShortVertArray);

#ifdef DEBUG_DRAW_CALLS
 mDrawCalls ++;
#endif // DEBUG_DRAW_CALLS

 mglDrawArrays(GL_LINES, 0, size / 2);
#ifdef OPENGLERRORS
 graphicsManager.logError();
#endif // OPENGLERRORS
}

void MobileOpenGLGraphics::dumpSettings()
{
 GLint test[1000];
 logger->log("\n\n");
 logger->log("start opengl dump");
 for (int f = 0; f < 65535; f ++)
 {
 test[0] = 0;
 test[1] = 0;
 test[2] = 0;
 test[3] = 0;
 mglGetIntegerv(f, &test[0]);
 if (test[0] != 0 || test[1] != 0 || test[2] != 0 || test[3] != 0)
 {
 logger->log("\n%d = %d, %d, %d, %d", f,
 test[0], test[1], test[2], test[3]);
 }
 }
}

void MobileOpenGLGraphics::setColorAlpha(const float alpha) restrict2
{
 if (!mIsByteColor && mFloatColor == alpha)
 return;

 glColor4f(1.0F, 1.0F, 1.0F, alpha);
 mIsByteColor = false;
 mFloatColor = alpha;
}

void MobileOpenGLGraphics::restoreColor() restrict2
{
 if (mIsByteColor && mByteColor == mColor)
 return;

 glColor4ub(static_cast<GLubyte>(mColor.r),
 static_cast<GLubyte>(mColor.g),
 static_cast<GLubyte>(mColor.b),
 static_cast<GLubyte>(mColor.a));
 mIsByteColor = true;
 mByteColor = mColor;
}

void MobileOpenGLGraphics::drawImageRect(const int x, const int y,
 const int w, const int h,
 const ImageRect &restrict imgRect)
 restrict2
{
 #include "render/graphics_drawImageRect.hpp"
}

void MobileOpenGLGraphics::calcImageRect(ImageVertexes *restrict const vert,
 const int x, const int y,
 const int w, const int h,
 const ImageRect &restrict imgRect)
 restrict2
{
 #include "render/graphics_calcImageRect.hpp"
}

void MobileOpenGLGraphics::clearScreen() const restrict2
{
 mglClear(GL_COLOR_BUFFER_BIT |
 GL_DEPTH_BUFFER_BIT |
 GL_STENCIL_BUFFER_BIT);
}

#ifdef DEBUG_BIND_TEXTURE
void MobileOpenGLGraphics::debugBindTexture(const Image *restrict const image)
 restrict2
{
 const std::string texture = image->mIdPath;
 if (mOldTexture != texture)
 {
 if ((!mOldTexture.empty() || !texture.empty())
 && mOldTextureId != image->mGLImage)
 {
 logger->log("bind: %s (%d) to %s (%d)", mOldTexture.c_str(),
 mOldTextureId, texture.c_str(), image->mGLImage);
 }
 mOldTextureId = image->mGLImage;
 mOldTexture = texture;
 }
}
#else // DEBUG_BIND_TEXTURE

void MobileOpenGLGraphics::debugBindTexture(const Image *restrict const
 image A_UNUSED) restrict2
{
}
#endif // DEBUG_BIND_TEXTURE

#endif // defined(USE_OPENGL) && !defined(__native_client__)