summaryrefslogtreecommitdiff
path: root/src/resources/safeopenglimagehelper.cpp
diff options
context:
space:
mode:
authorAndrei Karas <akaras@inbox.ru>2015-12-15 18:57:03 +0300
committerAndrei Karas <akaras@inbox.ru>2015-12-15 18:58:08 +0300
commit1ffeeb5d960ecf45ff285b8045265bb38de86b18 (patch)
treef3e0a40a39cf0b00376d0201eee53e13e7592c5c /src/resources/safeopenglimagehelper.cpp
parent559bd8c3275b05cf061813094a880223f343cff5 (diff)
downloadmv-1ffeeb5d960ecf45ff285b8045265bb38de86b18.tar.gz
mv-1ffeeb5d960ecf45ff285b8045265bb38de86b18.tar.bz2
mv-1ffeeb5d960ecf45ff285b8045265bb38de86b18.tar.xz
mv-1ffeeb5d960ecf45ff285b8045265bb38de86b18.zip
Add safeopenglimagehelper for using in safe opengl mode only.
Diffstat (limited to 'src/resources/safeopenglimagehelper.cpp')
-rw-r--r--src/resources/safeopenglimagehelper.cpp475
1 files changed, 475 insertions, 0 deletions
diff --git a/src/resources/safeopenglimagehelper.cpp b/src/resources/safeopenglimagehelper.cpp
new file mode 100644
index 000000000..1271b7e1b
--- /dev/null
+++ b/src/resources/safeopenglimagehelper.cpp
@@ -0,0 +1,475 @@
+/*
+ * The ManaPlus Client
+ * Copyright (C) 2004-2009 The Mana World Development Team
+ * Copyright (C) 2009-2010 The Mana Developers
+ * Copyright (C) 2011-2015 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 "resources/safeopenglimagehelper.h"
+
+#ifdef USE_OPENGL
+
+#include "graphicsmanager.h"
+#include "logger.h"
+
+#include "render/mgl.h"
+#include "render/mglcheck.h"
+#include "render/mobileopengl2graphics.h"
+#include "render/mobileopenglgraphics.h"
+#include "render/modernopenglgraphics.h"
+#include "render/normalopenglgraphics.h"
+#include "render/safeopenglgraphics.h"
+
+#include "resources/dye.h"
+#include "resources/dyepalette.h"
+#include "resources/image.h"
+
+#include "utils/sdlcheckutils.h"
+
+#include <SDL_image.h>
+
+#include "debug.h"
+
+int SafeOpenGLImageHelper::mTextureType = 0;
+int SafeOpenGLImageHelper::mInternalTextureType = GL_RGBA8;
+int SafeOpenGLImageHelper::mTextureSize = 0;
+bool SafeOpenGLImageHelper::mBlur = true;
+bool SafeOpenGLImageHelper::mUseTextureSampler = false;
+
+SafeOpenGLImageHelper::~SafeOpenGLImageHelper()
+{
+ glDeleteTextures(static_cast<GLsizei>(texturesSize - mFreeTextureIndex),
+ &mTextures[mFreeTextureIndex]);
+}
+
+Image *SafeOpenGLImageHelper::load(SDL_RWops *const rw,
+ Dye const &dye)
+{
+ SDL_Surface *const tmpImage = loadPng(rw);
+ if (!tmpImage)
+ {
+ logger->log("Error, image load failed: %s", IMG_GetError());
+ return nullptr;
+ }
+
+ SDL_Surface *const surf = convertTo32Bit(tmpImage);
+ MSDL_FreeSurface(tmpImage);
+ if (!surf)
+ return nullptr;
+
+ uint32_t *pixels = static_cast<uint32_t *>(surf->pixels);
+ const int type = dye.getType();
+
+ switch (type)
+ {
+ case 1:
+ {
+ const DyePalette *const pal = dye.getSPalete();
+ if (pal)
+ pal->replaceSOGLColor(pixels, surf->w * surf->h);
+ break;
+ }
+ case 2:
+ {
+ const DyePalette *const pal = dye.getAPalete();
+ if (pal)
+ pal->replaceAOGLColor(pixels, surf->w * surf->h);
+ break;
+ }
+ case 0:
+ default:
+ {
+ dye.normalOGLDye(pixels, surf->w * surf->h);
+ break;
+ }
+ }
+
+ Image *const image = load(surf);
+ MSDL_FreeSurface(surf);
+ return image;
+}
+
+Image *SafeOpenGLImageHelper::load(SDL_Surface *const tmpImage)
+{
+ return glLoad(tmpImage);
+}
+
+Image *SafeOpenGLImageHelper::createTextSurface(SDL_Surface *const tmpImage,
+ const int width,
+ const int height,
+ const float alpha)
+{
+ if (!tmpImage)
+ return nullptr;
+
+ Image *const img = glLoad(tmpImage, width, height);
+ if (img)
+ img->setAlpha(alpha);
+ return img;
+}
+
+int SafeOpenGLImageHelper::powerOfTwo(const int input)
+{
+ int value;
+ if (mTextureType == GL_TEXTURE_2D)
+ {
+ value = 1;
+ while (value < input && value < mTextureSize)
+ value <<= 1;
+ }
+ else
+ {
+ value = input;
+ }
+ return value >= mTextureSize ? mTextureSize : value;
+}
+
+SDL_Surface *SafeOpenGLImageHelper::convertSurfaceNormalize(SDL_Surface
+ *tmpImage,
+ int width,
+ int height)
+{
+ if (!tmpImage)
+ return nullptr;
+
+ int realWidth = powerOfTwo(width);
+ int realHeight = powerOfTwo(height);
+
+ if (realWidth < width || realHeight < height)
+ {
+ logger->log("Warning: image too large, cropping to %dx%d texture!",
+ tmpImage->w, tmpImage->h);
+ }
+
+#ifdef USE_SDL2
+ SDL_SetSurfaceAlphaMod(tmpImage, SDL_ALPHA_OPAQUE);
+#else
+ // Make sure the alpha channel is not used, but copied to destination
+ SDL_SetAlpha(tmpImage, 0, SDL_ALPHA_OPAQUE);
+#endif
+
+ // Determine 32-bit masks based on byte order
+ uint32_t rmask, gmask, bmask, amask;
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+ rmask = 0xff000000;
+ gmask = 0x00ff0000;
+ bmask = 0x0000ff00;
+ amask = 0x000000ff;
+#else
+ rmask = 0x000000ff;
+ gmask = 0x0000ff00;
+ bmask = 0x00ff0000;
+ amask = 0xff000000;
+#endif
+
+ if (tmpImage->format->BitsPerPixel != 32
+ || realWidth != width || realHeight != height
+ || rmask != tmpImage->format->Rmask
+ || gmask != tmpImage->format->Gmask
+ || amask != tmpImage->format->Amask)
+ {
+ SDL_Surface *oldImage = tmpImage;
+#ifdef USE_SDL2
+ SDL_SetSurfaceBlendMode(oldImage, SDL_BLENDMODE_NONE);
+#endif
+ tmpImage = MSDL_CreateRGBSurface(SDL_SWSURFACE, realWidth, realHeight,
+ 32, rmask, gmask, bmask, amask);
+
+ if (!tmpImage)
+ {
+ logger->log("Error, image convert failed: out of memory");
+ return nullptr;
+ }
+ SDL_BlitSurface(oldImage, nullptr, tmpImage, nullptr);
+ }
+ return tmpImage;
+}
+
+SDL_Surface *SafeOpenGLImageHelper::convertSurface(SDL_Surface *tmpImage,
+ int width,
+ int height)
+{
+ if (!tmpImage)
+ return nullptr;
+
+#ifdef USE_SDL2
+ SDL_SetSurfaceAlphaMod(tmpImage, SDL_ALPHA_OPAQUE);
+#else
+ // Make sure the alpha channel is not used, but copied to destination
+ SDL_SetAlpha(tmpImage, 0, SDL_ALPHA_OPAQUE);
+#endif
+
+ // Determine 32-bit masks based on byte order
+ uint32_t rmask, gmask, bmask, amask;
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+ rmask = 0xff000000;
+ gmask = 0x00ff0000;
+ bmask = 0x0000ff00;
+ amask = 0x000000ff;
+#else
+ rmask = 0x000000ff;
+ gmask = 0x0000ff00;
+ bmask = 0x00ff0000;
+ amask = 0xff000000;
+#endif
+
+ if (tmpImage->format->BitsPerPixel != 32
+ || rmask != tmpImage->format->Rmask
+ || gmask != tmpImage->format->Gmask
+ || amask != tmpImage->format->Amask)
+ {
+ SDL_Surface *oldImage = tmpImage;
+#ifdef USE_SDL2
+ SDL_SetSurfaceBlendMode(oldImage, SDL_BLENDMODE_NONE);
+#endif
+ tmpImage = MSDL_CreateRGBSurface(SDL_SWSURFACE, width, height,
+ 32, rmask, gmask, bmask, amask);
+
+ if (!tmpImage)
+ {
+ logger->log("Error, image convert failed: out of memory");
+ return nullptr;
+ }
+ SDL_BlitSurface(oldImage, nullptr, tmpImage, nullptr);
+ }
+ return tmpImage;
+}
+
+void SafeOpenGLImageHelper::bindTexture(const GLuint texture)
+{
+ switch (mUseOpenGL)
+ {
+#ifdef __native_client__
+ case RENDER_NORMAL_OPENGL:
+ case RENDER_MODERN_OPENGL:
+ case RENDER_GLES_OPENGL:
+ break;
+ case RENDER_SAFE_OPENGL:
+ SafeOpenGLGraphics::bindTexture(mTextureType, texture);
+ break;
+ case RENDER_GLES2_OPENGL:
+ MobileOpenGL2Graphics::bindTexture(mTextureType, texture);
+ break;
+#else // __native_client__
+ case RENDER_NORMAL_OPENGL:
+ NormalOpenGLGraphics::bindTexture(mTextureType, texture);
+ break;
+ case RENDER_MODERN_OPENGL:
+ ModernOpenGLGraphics::bindTexture(mTextureType, texture);
+ break;
+ case RENDER_SAFE_OPENGL:
+ SafeOpenGLGraphics::bindTexture(mTextureType, texture);
+ break;
+ case RENDER_GLES_OPENGL:
+ MobileOpenGLGraphics::bindTexture(mTextureType, texture);
+ break;
+ case RENDER_GLES2_OPENGL:
+ MobileOpenGL2Graphics::bindTexture(mTextureType, texture);
+ break;
+#endif // __native_client__
+ case RENDER_SOFTWARE:
+ case RENDER_SDL2_DEFAULT:
+ case RENDER_NULL:
+ case RENDER_LAST:
+ default:
+ logger->log("Unknown OpenGL backend: %d", mUseOpenGL);
+ break;
+ }
+}
+
+Image *SafeOpenGLImageHelper::glLoad(SDL_Surface *tmpImage,
+ int width,
+ int height)
+{
+ if (!tmpImage)
+ return nullptr;
+
+ BLOCK_START("SafeOpenGLImageHelper::glLoad")
+ // Flush current error flag.
+ graphicsManager.getLastError();
+
+ if (!width)
+ width = tmpImage->w;
+ if (!height)
+ height = tmpImage->h;
+
+ SDL_Surface *oldImage = tmpImage;
+ tmpImage = convertSurfaceNormalize(tmpImage, width, height);
+ if (!tmpImage)
+ return nullptr;
+
+ const int realWidth = tmpImage->w;
+ const int realHeight = tmpImage->h;
+
+ const GLuint texture = getNewTexture();
+ bindTexture(texture);
+
+ if (SDL_MUSTLOCK(tmpImage))
+ SDL_LockSurface(tmpImage);
+
+ glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+
+ if (!mUseTextureSampler)
+ {
+ if (mBlur)
+ {
+ glTexParameteri(mTextureType, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(mTextureType, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ }
+ else
+ {
+ glTexParameteri(mTextureType, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(mTextureType, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ }
+ }
+#ifndef ANDROID
+ glTexParameteri(mTextureType, GL_TEXTURE_MAX_LEVEL, 0);
+#endif
+
+ glTexImage2D(mTextureType, 0, mInternalTextureType,
+ tmpImage->w, tmpImage->h,
+ 0, GL_RGBA, GL_UNSIGNED_BYTE, tmpImage->pixels);
+
+#ifdef DEBUG_OPENGL
+// disabled for now, because debugger can't show it
+// if (isGLNotNull(mglLabelObject))
+// {
+// const char *const text = "image text";
+// mglLabelObject(GL_TEXTURE, texture, strlen(text), text);
+// }
+#endif
+
+/*
+ GLint compressed;
+ glGetTexLevelParameteriv(mTextureType, 0,
+ GL_TEXTURE_COMPRESSED_ARB, &compressed);
+ if (compressed)
+ logger->log("image compressed");
+ else
+ logger->log("image not compressed");
+*/
+
+#ifdef DEBUG_OPENGL_LEAKS
+ textures_count ++;
+#endif
+
+ if (SDL_MUSTLOCK(tmpImage))
+ SDL_UnlockSurface(tmpImage);
+
+ if (oldImage != tmpImage)
+ MSDL_FreeSurface(tmpImage);
+
+ GLenum error = graphicsManager.getLastError();
+ if (error)
+ {
+ std::string errmsg = GraphicsManager::errorToString(error);
+ logger->log("Error: Image GL import failed: %s (%u)",
+ errmsg.c_str(), error);
+// return nullptr;
+ }
+
+ BLOCK_END("SafeOpenGLImageHelper::glLoad")
+ return new Image(texture, width, height, realWidth, realHeight);
+}
+
+void SafeOpenGLImageHelper::initTextureSampler(const GLint id)
+{
+ if (mBlur)
+ {
+ mglSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ mglSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ }
+ else
+ {
+ mglSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ mglSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ }
+}
+
+SDL_Surface *SafeOpenGLImageHelper::create32BitSurface(int width,
+ int height) const
+{
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+ const int rmask = 0xff000000;
+ const int gmask = 0x00ff0000;
+ const int bmask = 0x0000ff00;
+ const int amask = 0x000000ff;
+#else
+ const int rmask = 0x000000ff;
+ const int gmask = 0x0000ff00;
+ const int bmask = 0x00ff0000;
+ const int amask = 0xff000000;
+#endif
+
+ width = powerOfTwo(width);
+ height = powerOfTwo(height);
+
+ return MSDL_CreateRGBSurface(SDL_SWSURFACE,
+ width, height, 32, rmask, gmask, bmask, amask);
+}
+
+GLuint SafeOpenGLImageHelper::getNewTexture()
+{
+ GLuint texture = mTextures[mFreeTextureIndex];
+ mFreeTextureIndex ++;
+ if (mFreeTextureIndex == texturesSize)
+ {
+ mFreeTextureIndex = 0;
+ postInit();
+ }
+ return texture;
+}
+
+void SafeOpenGLImageHelper::postInit()
+{
+ glGenTextures(texturesSize, &mTextures[mFreeTextureIndex]);
+}
+
+void SafeOpenGLImageHelper::invalidate(const GLuint textureId)
+{
+ if (isGLNotNull(mglInvalidateTexImage))
+ {
+ logger->log("invalidate: %u", textureId);
+ mglInvalidateTexImage(textureId, 0);
+ }
+}
+
+void SafeOpenGLImageHelper::copySurfaceToImage(const Image *const image,
+ const int x,
+ const int y,
+ SDL_Surface *surface) const
+{
+ if (!surface || !image)
+ return;
+
+ SDL_Surface *const oldSurface = surface;
+ surface = convertSurface(surface, surface->w, surface->h);
+ if (!surface)
+ return;
+
+ mglTextureSubImage2D(image->mGLImage,
+ mTextureType, 0,
+ x, y,
+ surface->w, surface->h,
+ GL_RGBA, GL_UNSIGNED_BYTE, surface->pixels);
+
+ if (surface != oldSurface)
+ MSDL_FreeSurface(surface);
+}
+
+#endif