summaryrefslogtreecommitdiff
path: root/src/safeopenglgraphics.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/safeopenglgraphics.cpp')
-rw-r--r--src/safeopenglgraphics.cpp654
1 files changed, 0 insertions, 654 deletions
diff --git a/src/safeopenglgraphics.cpp b/src/safeopenglgraphics.cpp
deleted file mode 100644
index 399af430c..000000000
--- a/src/safeopenglgraphics.cpp
+++ /dev/null
@@ -1,654 +0,0 @@
-/*
- * 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/>.
- */
-
-#include "main.h"
-
-#if defined USE_OPENGL && !defined ANDROID
-#include "safeopenglgraphics.h"
-
-#include "configuration.h"
-#include "graphicsmanager.h"
-#include "graphicsvertexes.h"
-#include "logger.h"
-
-#include "resources/image.h"
-#include "resources/openglimagehelper.h"
-
-#include "utils/sdlcheckutils.h"
-
-#include <SDL.h>
-
-#include "debug.h"
-
-GLuint SafeOpenGLGraphics::mLastImage = 0;
-
-SafeOpenGLGraphics::SafeOpenGLGraphics():
- mTexture(false),
- mIsByteColor(false),
- mByteColor(),
- mFloatColor(1.0f),
- mColorAlpha(false),
- mFbo()
-{
- mOpenGL = 2;
- mName = "safe OpenGL";
-}
-
-SafeOpenGLGraphics::~SafeOpenGLGraphics()
-{
-}
-
-bool SafeOpenGLGraphics::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);
-
- return setOpenGLMode();
-}
-
-static inline void drawQuad(const Image *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;
-
- 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(const Image *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;
-
- 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 *const image,
- int srcX, int srcY,
- int dstX, int dstY,
- const int width, const int height,
- const bool useColor)
-{
- FUNC_BLOCK("Graphics::drawImage2", 1)
- if (!image)
- return false;
-
- if (!useColor)
- setColorAlpha(image->mAlpha);
-
- bindTexture(OpenGLImageHelper::mTextureType, image->mGLImage);
-
- setTexturingAndBlending(true);
-
- // Draw a textured quad.
- glBegin(GL_QUADS);
- drawQuad(image, srcX + image->mBounds.x, srcY + image->mBounds.y,
- dstX, dstY, width, height);
- glEnd();
-
- return true;
-}
-
-bool SafeOpenGLGraphics::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)
-{
- return drawRescaledImage(image, srcX, srcY,
- dstX, dstY,
- width, height,
- desiredWidth, desiredHeight,
- useColor, true);
-}
-
-bool SafeOpenGLGraphics::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,
- bool smooth)
-{
- FUNC_BLOCK("Graphics::drawRescaledImage", 1)
- 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)
- setColorAlpha(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...
- {
- setColorAlpha(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();
-
- return true;
-}
-
-/* Optimising the functions that Graphics::drawImagePattern would call,
- * so that glBegin...glEnd are outside the main loop. */
-void SafeOpenGLGraphics::drawImagePattern(const Image *const image,
- const int x, const int y,
- const int w, const int h)
-{
- FUNC_BLOCK("Graphics::drawImagePattern", 1)
- if (!image)
- return;
-
- const SDL_Rect &imageRect = image->mBounds;
- const int iw = imageRect.w;
- const int ih = imageRect.h;
- if (iw == 0 || ih == 0)
- return;
-
- const int srcX = imageRect.x;
- const int srcY = imageRect.y;
-
- setColorAlpha(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();
-}
-
-void SafeOpenGLGraphics::drawRescaledImagePattern(const Image *const image,
- const int x, const int y,
- const int w, const int h,
- const int scaledWidth,
- const int scaledHeight)
-{
- if (!image)
- return;
-
- const int iw = scaledWidth;
- const int ih = scaledHeight;
- if (iw == 0 || ih == 0)
- return;
-
- const SDL_Rect &imageRect = image->mBounds;
- const int srcX = imageRect.x;
- const int srcY = imageRect.y;
-
- setColorAlpha(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();
-}
-
-void SafeOpenGLGraphics::calcTile(ImageCollection *const vertCol A_UNUSED,
- const Image *const image A_UNUSED,
- int x A_UNUSED, int y A_UNUSED)
-{
-}
-
-void SafeOpenGLGraphics::calcTile(ImageVertexes *const vert A_UNUSED,
- const Image *const image A_UNUSED,
- int x A_UNUSED, int y A_UNUSED) const
-{
-}
-
-void SafeOpenGLGraphics::calcImagePattern(ImageVertexes *const vert A_UNUSED,
- const Image *const image A_UNUSED,
- const int x A_UNUSED,
- const int y A_UNUSED,
- const int w A_UNUSED,
- const int h A_UNUSED) const
-{
-}
-
-void SafeOpenGLGraphics::calcImagePattern(ImageCollection *const vert A_UNUSED,
- const Image *const image A_UNUSED,
- const int x A_UNUSED,
- const int y A_UNUSED,
- const int w A_UNUSED,
- const int h A_UNUSED) const
-{
-}
-
-void SafeOpenGLGraphics::drawTile(const ImageVertexes *const vert A_UNUSED)
-{
-}
-
-void SafeOpenGLGraphics::drawTile(const ImageCollection *const
- vertCol A_UNUSED)
-{
-}
-
-void SafeOpenGLGraphics::updateScreen()
-{
- BLOCK_START("Graphics::updateScreen")
- glFlush();
- glFinish();
-#ifdef USE_SDL2
- SDL_GL_SwapWindow(mWindow);
-#else
- SDL_GL_SwapBuffers();
-#endif
- BLOCK_END("Graphics::updateScreen")
-}
-
-bool SafeOpenGLGraphics::calcWindow(ImageCollection *const vertCol A_UNUSED,
- const int x A_UNUSED, const int y A_UNUSED,
- const int w A_UNUSED, const int h A_UNUSED,
- const ImageRect &imgRect A_UNUSED)
-{
- return false;
-}
-
-void SafeOpenGLGraphics::_beginDraw()
-{
- glMatrixMode(GL_TEXTURE);
- glLoadIdentity();
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
-
- glOrtho(0.0, static_cast<double>(mRect.w),
- static_cast<double>(mRect.h), 0.0, -1.0, 1.0);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- glEnable(GL_SCISSOR_TEST);
- glDisable(GL_DITHER);
- glDisable(GL_LIGHTING);
- glDisable(GL_DEPTH_TEST);
- glDisable(GL_FOG);
- glDisable(GL_COLOR_LOGIC_OP);
- glDisable(GL_COLOR_MATERIAL);
- glDisable(GL_STENCIL_TEST);
-
- glShadeModel(GL_FLAT);
-
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
- pushClipArea(gcn::Rectangle(0, 0, mRect.w, mRect.h));
-}
-
-void SafeOpenGLGraphics::_endDraw()
-{
- popClipArea();
-}
-
-void SafeOpenGLGraphics::prepareScreenshot()
-{
- if (config.getBoolValue("usefbo"))
- graphicsManager.createFBO(mRect.w, mRect.h, &mFbo);
-}
-
-SDL_Surface* SafeOpenGLGraphics::getScreenshot()
-{
- const int h = mRect.h;
- const int w = mRect.w - (mRect.w % 4);
- GLint pack = 1;
-
- SDL_Surface *const screenshot = MSDL_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));
-
- const int h2 = h / 2;
- for (int i = 0; i < h2; i++)
- {
- GLubyte *const top = static_cast<GLubyte*>(
- screenshot->pixels) + lineSize * i;
- GLubyte *const 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 (config.getBoolValue("usefbo"))
- graphicsManager.deleteFBO(&mFbo);
-
- 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;
- }
-
- const bool result = gcn::Graphics::pushClipArea(area);
-
- const gcn::ClipRectangle &clipArea = mClipStack.top();
-
- glPushMatrix();
- glTranslatef(static_cast<GLfloat>(transX + clipArea.xOffset),
- static_cast<GLfloat>(transY + clipArea.yOffset), 0);
- glScissor(clipArea.x, mRect.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, mRect.h - clipArea.y - clipArea.height,
- clipArea.width, clipArea.height);
-}
-
-void SafeOpenGLGraphics::drawPoint(int x, int y)
-{
- setTexturingAndBlending(false);
- restoreColor();
-
- glBegin(GL_POINTS);
- glVertex2i(x, y);
- glEnd();
-}
-
-void SafeOpenGLGraphics::drawLine(int x1, int y1, int x2, int y2)
-{
- setTexturingAndBlending(false);
- restoreColor();
-
- 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(const 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,
- const bool filled)
-{
- BLOCK_START("Graphics::drawRectangle")
- const float offset = filled ? 0 : 0.5f;
-
- setTexturingAndBlending(false);
- restoreColor();
-
- 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();
- BLOCK_END("Graphics::drawRectangle")
-}
-
-void SafeOpenGLGraphics::bindTexture(const GLenum target, const GLuint texture)
-{
- if (mLastImage != texture)
- {
- mLastImage = texture;
- glBindTexture(target, texture);
- }
-}
-
-void SafeOpenGLGraphics::setColorAlpha(const float alpha)
-{
- if (!mIsByteColor && mFloatColor == alpha)
- return;
-
- glColor4f(1.0f, 1.0f, 1.0f, alpha);
- mIsByteColor = false;
- mFloatColor = alpha;
-}
-
-void SafeOpenGLGraphics::restoreColor()
-{
- 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;
-}
-
-#endif // USE_OPENGL