1223 lines
28 KiB
C++
1223 lines
28 KiB
C++
/**
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* @file llimagegl.cpp
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* @brief Generic GL image handler
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*
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* Copyright (c) 2001-$CurrentYear$, Linden Research, Inc.
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* $License$
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*/
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// TODO: create 2 classes for images w/ and w/o discard levels?
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#include "linden_common.h"
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#include "llimagegl.h"
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#include "llerror.h"
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#include "llimage.h"
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#include "llmath.h"
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#include "llgl.h"
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//----------------------------------------------------------------------------
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const F32 MIN_TEXTURE_LIFETIME = 10.f;
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//statics
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LLGLuint LLImageGL::sCurrentBoundTextures[MAX_GL_TEXTURE_UNITS] = { 0 };
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S32 LLImageGL::sGlobalTextureMemory = 0;
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S32 LLImageGL::sBoundTextureMemory = 0;
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S32 LLImageGL::sCurBoundTextureMemory = 0;
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S32 LLImageGL::sCount = 0;
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BOOL LLImageGL::sGlobalUseAnisotropic = FALSE;
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F32 LLImageGL::sLastFrameTime = 0.f;
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std::set<LLImageGL*> LLImageGL::sImageList;
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//----------------------------------------------------------------------------
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//static
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S32 LLImageGL::dataFormatBits(S32 dataformat)
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{
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switch (dataformat)
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{
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case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: return 4;
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case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: return 8;
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case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: return 8;
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case GL_LUMINANCE: return 8;
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case GL_ALPHA: return 8;
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case GL_COLOR_INDEX: return 8;
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case GL_LUMINANCE_ALPHA: return 16;
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case GL_RGB: return 24;
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case GL_RGB8: return 24;
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case GL_RGBA: return 32;
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case GL_BGRA: return 32; // Used for QuickTime media textures on the Mac
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default:
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llerrs << "LLImageGL::Unknown format: " << dataformat << llendl;
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return 0;
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}
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}
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//static
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S32 LLImageGL::dataFormatBytes(S32 dataformat, S32 width, S32 height)
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{
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if (dataformat >= GL_COMPRESSED_RGB_S3TC_DXT1_EXT &&
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dataformat <= GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
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{
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if (width < 4) width = 4;
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if (height < 4) height = 4;
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}
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S32 bytes ((width*height*dataFormatBits(dataformat)+7)>>3);
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S32 aligned = (bytes+3)&~3;
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return aligned;
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}
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//static
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S32 LLImageGL::dataFormatComponents(S32 dataformat)
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{
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switch (dataformat)
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{
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case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: return 3;
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case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: return 4;
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case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: return 4;
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case GL_LUMINANCE: return 1;
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case GL_ALPHA: return 1;
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case GL_COLOR_INDEX: return 1;
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case GL_LUMINANCE_ALPHA: return 2;
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case GL_RGB: return 3;
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case GL_RGBA: return 4;
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case GL_BGRA: return 4; // Used for QuickTime media textures on the Mac
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default:
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llerrs << "LLImageGL::Unknown format: " << dataformat << llendl;
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return 0;
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}
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}
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//----------------------------------------------------------------------------
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// static
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void LLImageGL::bindExternalTexture(LLGLuint gl_name, S32 stage, LLGLenum bind_target )
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{
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glActiveTextureARB(GL_TEXTURE0_ARB + stage);
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glClientActiveTextureARB(GL_TEXTURE0_ARB + stage);
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glBindTexture(bind_target, gl_name);
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sCurrentBoundTextures[stage] = gl_name;
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}
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// static
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void LLImageGL::unbindTexture(S32 stage, LLGLenum bind_target)
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{
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glActiveTextureARB(GL_TEXTURE0_ARB + stage);
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glClientActiveTextureARB(GL_TEXTURE0_ARB + stage);
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glBindTexture(bind_target, 0);
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sCurrentBoundTextures[stage] = 0;
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}
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// static (duplicated for speed and to avoid GL_TEXTURE_2D default argument which requires GL header dependency)
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void LLImageGL::unbindTexture(S32 stage)
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{
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glActiveTextureARB(GL_TEXTURE0_ARB + stage);
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glClientActiveTextureARB(GL_TEXTURE0_ARB + stage);
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glBindTexture(GL_TEXTURE_2D, 0);
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sCurrentBoundTextures[stage] = 0;
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}
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// static
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void LLImageGL::updateStats(F32 current_time)
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{
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sLastFrameTime = current_time;
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sBoundTextureMemory = sCurBoundTextureMemory;
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sCurBoundTextureMemory = 0;
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}
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//static
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S32 LLImageGL::updateBoundTexMem(const S32 delta)
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{
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LLImageGL::sCurBoundTextureMemory += delta;
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return LLImageGL::sCurBoundTextureMemory;
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}
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//----------------------------------------------------------------------------
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//static
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void LLImageGL::destroyGL(BOOL save_state)
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{
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for (S32 stage = 0; stage < gGLManager.mNumTextureUnits; stage++)
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{
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LLImageGL::unbindTexture(stage, GL_TEXTURE_2D);
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}
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for (std::set<LLImageGL*>::iterator iter = sImageList.begin();
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iter != sImageList.end(); iter++)
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{
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LLImageGL* glimage = *iter;
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if (glimage->mTexName && glimage->mComponents)
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{
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if (save_state)
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{
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glimage->mSaveData = new LLImageRaw;
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glimage->readBackRaw(glimage->mCurrentDiscardLevel, glimage->mSaveData, false);
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}
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glimage->destroyGLTexture();
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stop_glerror();
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}
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}
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}
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//static
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void LLImageGL::restoreGL()
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{
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for (std::set<LLImageGL*>::iterator iter = sImageList.begin();
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iter != sImageList.end(); iter++)
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{
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LLImageGL* glimage = *iter;
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if (glimage->mSaveData.notNull() && glimage->mSaveData->getComponents())
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{
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if (glimage->getComponents())
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{
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glimage->createGLTexture(glimage->mCurrentDiscardLevel, glimage->mSaveData);
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stop_glerror();
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}
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glimage->mSaveData = NULL; // deletes data
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}
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}
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}
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//----------------------------------------------------------------------------
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//static
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BOOL LLImageGL::create(LLPointer<LLImageGL>& dest, BOOL usemipmaps)
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{
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dest = new LLImageGL(usemipmaps);
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return TRUE;
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}
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BOOL LLImageGL::create(LLPointer<LLImageGL>& dest, U32 width, U32 height, U8 components, BOOL usemipmaps)
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{
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dest = new LLImageGL(width, height, components, usemipmaps);
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return TRUE;
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}
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BOOL LLImageGL::create(LLPointer<LLImageGL>& dest, const LLImageRaw* imageraw, BOOL usemipmaps)
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{
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dest = new LLImageGL(imageraw, usemipmaps);
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return TRUE;
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}
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//----------------------------------------------------------------------------
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LLImageGL::LLImageGL(BOOL usemipmaps)
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: mSaveData(0)
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{
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init(usemipmaps);
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setSize(0, 0, 0);
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sImageList.insert(this);
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sCount++;
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}
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LLImageGL::LLImageGL(U32 width, U32 height, U8 components, BOOL usemipmaps)
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: mSaveData(0)
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{
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llassert( components <= 4 );
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init(usemipmaps);
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setSize(width, height, components);
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sImageList.insert(this);
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sCount++;
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}
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LLImageGL::LLImageGL(const LLImageRaw* imageraw, BOOL usemipmaps)
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: mSaveData(0)
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{
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init(usemipmaps);
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setSize(0, 0, 0);
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sImageList.insert(this);
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sCount++;
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createGLTexture(0, imageraw);
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}
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LLImageGL::~LLImageGL()
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{
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LLImageGL::cleanup();
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sImageList.erase(this);
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sCount--;
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}
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void LLImageGL::init(BOOL usemipmaps)
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{
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#ifdef DEBUG_MISS
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mMissed = FALSE;
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#endif
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mTextureMemory = 0;
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mLastBindTime = 0.f;
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mTarget = GL_TEXTURE_2D;
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mBindTarget = GL_TEXTURE_2D;
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mUseMipMaps = usemipmaps;
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mHasMipMaps = FALSE;
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mAutoGenMips = FALSE;
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mTexName = 0;
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mIsResident = 0;
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mClampS = FALSE;
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mClampT = FALSE;
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mMipFilterNearest = FALSE;
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mWidth = 0;
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mHeight = 0;
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mComponents = 0;
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mMaxDiscardLevel = MAX_DISCARD_LEVEL;
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mCurrentDiscardLevel = -1;
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mDontDiscard = FALSE;
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mFormatInternal = -1;
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mFormatPrimary = (LLGLenum) 0;
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mFormatType = GL_UNSIGNED_BYTE;
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mFormatSwapBytes = FALSE;
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mHasExplicitFormat = FALSE;
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}
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void LLImageGL::cleanup()
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{
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if (!gGLManager.mIsDisabled)
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{
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destroyGLTexture();
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}
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mSaveData = NULL; // deletes data
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}
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//----------------------------------------------------------------------------
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static bool check_power_of_two(S32 dim)
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{
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while(dim > 1)
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{
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if (dim & 1)
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{
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return false;
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}
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dim >>= 1;
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}
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return true;
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}
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//static
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bool LLImageGL::checkSize(S32 width, S32 height)
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{
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return check_power_of_two(width) && check_power_of_two(height);
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}
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void LLImageGL::setSize(S32 width, S32 height, S32 ncomponents)
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{
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if (width != mWidth || height != mHeight || ncomponents != mComponents)
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{
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// Check if dimensions are a power of two!
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if (!checkSize(width,height))
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{
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llerrs << llformat("Texture has non power of two dimention: %dx%d",width,height) << llendl;
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}
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if (mTexName)
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{
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// llwarns << "Setting Size of LLImageGL with existing mTexName = " << mTexName << llendl;
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destroyGLTexture();
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}
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mWidth = width;
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mHeight = height;
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mComponents = ncomponents;
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if (ncomponents > 0)
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{
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mMaxDiscardLevel = 0;
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while (width > 1 && height > 1 && mMaxDiscardLevel < MAX_DISCARD_LEVEL)
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{
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mMaxDiscardLevel++;
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width >>= 1;
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height >>= 1;
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}
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}
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else
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{
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mMaxDiscardLevel = MAX_DISCARD_LEVEL;
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}
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}
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}
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//----------------------------------------------------------------------------
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// virtual
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void LLImageGL::dump()
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{
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llinfos << "mMaxDiscardLevel " << S32(mMaxDiscardLevel)
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<< " mLastBindTime " << mLastBindTime
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<< " mTarget " << S32(mTarget)
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<< " mBindTarget " << S32(mBindTarget)
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<< " mUseMipMaps " << S32(mUseMipMaps)
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<< " mHasMipMaps " << S32(mHasMipMaps)
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<< " mCurrentDiscardLevel " << S32(mCurrentDiscardLevel)
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<< " mFormatInternal " << S32(mFormatInternal)
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<< " mFormatPrimary " << S32(mFormatPrimary)
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<< " mFormatType " << S32(mFormatType)
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<< " mFormatSwapBytes " << S32(mFormatSwapBytes)
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<< " mHasExplicitFormat " << S32(mHasExplicitFormat)
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#if DEBUG_MISS
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<< " mMissed " << mMissed
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#endif
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<< llendl;
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llinfos << " mTextureMemory " << mTextureMemory
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<< " mTexNames " << mTexName
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<< " mIsResident " << S32(mIsResident)
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<< llendl;
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}
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//----------------------------------------------------------------------------
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BOOL LLImageGL::bindTextureInternal(const S32 stage) const
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{
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if (gGLManager.mIsDisabled)
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{
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llwarns << "Trying to bind a texture while GL is disabled!" << llendl;
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}
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glActiveTextureARB(GL_TEXTURE0_ARB + stage);
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if (sCurrentBoundTextures[stage] && sCurrentBoundTextures[stage] == mTexName)
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{
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// already set!
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return TRUE;
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}
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if (mTexName != 0)
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{
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#ifdef DEBUG_MISS
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mMissed = ! getIsResident(TRUE);
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#endif
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glBindTexture(mBindTarget, mTexName);
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sCurrentBoundTextures[stage] = mTexName;
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if (mLastBindTime != sLastFrameTime)
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{
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// we haven't accounted for this texture yet this frame
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updateBoundTexMem(mTextureMemory);
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mLastBindTime = sLastFrameTime;
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}
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return TRUE;
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}
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else
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{
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glBindTexture(mBindTarget, 0);
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sCurrentBoundTextures[stage] = 0;
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return FALSE;
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}
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}
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//virtual
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BOOL LLImageGL::bind(const S32 stage) const
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{
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if (stage == -1)
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{
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return FALSE;
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}
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BOOL res = bindTextureInternal(stage);
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//llassert(res);
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return res;
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}
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void LLImageGL::setExplicitFormat( LLGLint internal_format, LLGLenum primary_format, LLGLenum type_format, BOOL swap_bytes )
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{
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// Note: must be called before createTexture()
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// Note: it's up to the caller to ensure that the format matches the number of components.
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mHasExplicitFormat = TRUE;
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mFormatInternal = internal_format;
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mFormatPrimary = primary_format;
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if(type_format == 0)
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mFormatType = GL_UNSIGNED_BYTE;
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else
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mFormatType = type_format;
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mFormatSwapBytes = swap_bytes;
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}
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//----------------------------------------------------------------------------
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void LLImageGL::setImage(const LLImageRaw* imageraw)
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{
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llassert((imageraw->getWidth() == getWidth(mCurrentDiscardLevel)) &&
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(imageraw->getHeight() == getHeight(mCurrentDiscardLevel)) &&
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(imageraw->getComponents() == getComponents()));
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const U8* rawdata = imageraw->getData();
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setImage(rawdata, FALSE);
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}
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void LLImageGL::setImage(const U8* data_in, BOOL data_hasmips)
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{
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// LLFastTimer t1(LLFastTimer::FTM_TEMP1);
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bool is_compressed = false;
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if (mFormatPrimary >= GL_COMPRESSED_RGBA_S3TC_DXT1_EXT && mFormatPrimary <= GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
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{
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is_compressed = true;
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}
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{
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// LLFastTimer t2(LLFastTimer::FTM_TEMP2);
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llverify(bindTextureInternal(0));
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}
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if (mUseMipMaps)
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{
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// LLFastTimer t2(LLFastTimer::FTM_TEMP3);
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if (data_hasmips)
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{
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// NOTE: data_in points to largest image; smaller images
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// are stored BEFORE the largest image
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for (S32 d=mCurrentDiscardLevel; d<=mMaxDiscardLevel; d++)
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{
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S32 w = getWidth(d);
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S32 h = getHeight(d);
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S32 gl_level = d-mCurrentDiscardLevel;
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if (d > mCurrentDiscardLevel)
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{
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data_in -= dataFormatBytes(mFormatPrimary, w, h); // see above comment
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}
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if (is_compressed)
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{
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// LLFastTimer t2(LLFastTimer::FTM_TEMP4);
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S32 tex_size = dataFormatBytes(mFormatPrimary, w, h);
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glCompressedTexImage2DARB(mTarget, gl_level, mFormatPrimary, w, h, 0, tex_size, (GLvoid *)data_in);
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stop_glerror();
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}
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else
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{
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// LLFastTimer t2(LLFastTimer::FTM_TEMP4);
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if(mFormatSwapBytes)
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{
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glPixelStorei(GL_UNPACK_SWAP_BYTES, 1);
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stop_glerror();
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}
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glTexImage2D(mTarget, gl_level, mFormatInternal, w, h, 0, mFormatPrimary, GL_UNSIGNED_BYTE, (GLvoid*)data_in);
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if(mFormatSwapBytes)
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{
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glPixelStorei(GL_UNPACK_SWAP_BYTES, 0);
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stop_glerror();
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}
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stop_glerror();
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}
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stop_glerror();
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}
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}
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else if (!is_compressed)
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{
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if (mAutoGenMips)
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{
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glTexParameteri(mBindTarget, GL_GENERATE_MIPMAP_SGIS, TRUE);
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stop_glerror();
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{
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// LLFastTimer t2(LLFastTimer::FTM_TEMP4);
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if(mFormatSwapBytes)
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{
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glPixelStorei(GL_UNPACK_SWAP_BYTES, 1);
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stop_glerror();
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}
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glTexImage2D(mTarget, 0, mFormatInternal,
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getWidth(mCurrentDiscardLevel), getHeight(mCurrentDiscardLevel), 0,
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mFormatPrimary, mFormatType,
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data_in);
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stop_glerror();
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if(mFormatSwapBytes)
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{
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glPixelStorei(GL_UNPACK_SWAP_BYTES, 0);
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stop_glerror();
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}
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}
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}
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else
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{
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// Create mips by hand
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// about 30% faster than autogen on ATI 9800, 50% slower on nVidia 4800
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// ~4x faster than gluBuild2DMipmaps
|
|
S32 width = getWidth(mCurrentDiscardLevel);
|
|
S32 height = getHeight(mCurrentDiscardLevel);
|
|
S32 nummips = mMaxDiscardLevel - mCurrentDiscardLevel + 1;
|
|
S32 w = width, h = height;
|
|
const U8* prev_mip_data = 0;
|
|
const U8* cur_mip_data = 0;
|
|
for (int m=0; m<nummips; m++)
|
|
{
|
|
if (m==0)
|
|
{
|
|
cur_mip_data = data_in;
|
|
}
|
|
else
|
|
{
|
|
S32 bytes = w * h * mComponents;
|
|
U8* new_data = new U8[bytes];
|
|
LLImageBase::generateMip(prev_mip_data, new_data, w, h, mComponents);
|
|
cur_mip_data = new_data;
|
|
}
|
|
llassert(w > 0 && h > 0 && cur_mip_data);
|
|
{
|
|
// LLFastTimer t1(LLFastTimer::FTM_TEMP4);
|
|
if(mFormatSwapBytes)
|
|
{
|
|
glPixelStorei(GL_UNPACK_SWAP_BYTES, 1);
|
|
stop_glerror();
|
|
}
|
|
|
|
glTexImage2D(mTarget, m, mFormatInternal, w, h, 0, mFormatPrimary, mFormatType, cur_mip_data);
|
|
stop_glerror();
|
|
|
|
if(mFormatSwapBytes)
|
|
{
|
|
glPixelStorei(GL_UNPACK_SWAP_BYTES, 0);
|
|
stop_glerror();
|
|
}
|
|
}
|
|
if (prev_mip_data && prev_mip_data != data_in)
|
|
{
|
|
delete[] prev_mip_data;
|
|
}
|
|
prev_mip_data = cur_mip_data;
|
|
w >>= 1;
|
|
h >>= 1;
|
|
}
|
|
if (prev_mip_data && prev_mip_data != data_in)
|
|
{
|
|
delete[] prev_mip_data;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
llerrs << "Compressed Image has mipmaps but data does not (can not auto generate compressed mips)" << llendl;
|
|
}
|
|
mHasMipMaps = TRUE;
|
|
}
|
|
else
|
|
{
|
|
// LLFastTimer t2(LLFastTimer::FTM_TEMP5);
|
|
S32 w = getWidth();
|
|
S32 h = getHeight();
|
|
if (is_compressed)
|
|
{
|
|
S32 tex_size = dataFormatBytes(mFormatPrimary, w, h);
|
|
glCompressedTexImage2DARB(mTarget, 0, mFormatPrimary, w, h, 0, tex_size, (GLvoid *)data_in);
|
|
stop_glerror();
|
|
}
|
|
else
|
|
{
|
|
if(mFormatSwapBytes)
|
|
{
|
|
glPixelStorei(GL_UNPACK_SWAP_BYTES, 1);
|
|
stop_glerror();
|
|
}
|
|
|
|
glTexImage2D(mTarget, 0, mFormatInternal, w, h, 0,
|
|
mFormatPrimary, mFormatType, (GLvoid *)data_in);
|
|
stop_glerror();
|
|
|
|
if(mFormatSwapBytes)
|
|
{
|
|
glPixelStorei(GL_UNPACK_SWAP_BYTES, 0);
|
|
stop_glerror();
|
|
}
|
|
|
|
}
|
|
mHasMipMaps = FALSE;
|
|
}
|
|
glFlush();
|
|
stop_glerror();
|
|
}
|
|
|
|
BOOL LLImageGL::setSubImage(const U8* datap, S32 data_width, S32 data_height, S32 x_pos, S32 y_pos, S32 width, S32 height)
|
|
{
|
|
if (!width || !height)
|
|
{
|
|
return TRUE;
|
|
}
|
|
if (mTexName == 0)
|
|
{
|
|
llwarns << "Setting subimage on image without GL texture" << llendl;
|
|
return FALSE;
|
|
}
|
|
if (datap == NULL)
|
|
{
|
|
llwarns << "Setting subimage on image with NULL datap" << llendl;
|
|
return FALSE;
|
|
}
|
|
|
|
if (x_pos == 0 && y_pos == 0 && width == getWidth() && height == getHeight())
|
|
{
|
|
setImage(datap, FALSE);
|
|
}
|
|
else
|
|
{
|
|
if (mUseMipMaps)
|
|
{
|
|
dump();
|
|
llerrs << "setSubImage called with mipmapped image (not supported)" << llendl;
|
|
}
|
|
llassert_always(mCurrentDiscardLevel == 0);
|
|
llassert_always(x_pos >= 0 && y_pos >= 0);
|
|
|
|
if (((x_pos + width) > getWidth()) ||
|
|
(y_pos + height) > getHeight())
|
|
{
|
|
dump();
|
|
llerrs << "Subimage not wholly in target image!"
|
|
<< " x_pos " << x_pos
|
|
<< " y_pos " << y_pos
|
|
<< " width " << width
|
|
<< " height " << height
|
|
<< " getWidth() " << getWidth()
|
|
<< " getHeight() " << getHeight()
|
|
<< llendl;
|
|
}
|
|
|
|
if ((x_pos + width) > data_width ||
|
|
(y_pos + height) > data_height)
|
|
{
|
|
dump();
|
|
llerrs << "Subimage not wholly in source image!"
|
|
<< " x_pos " << x_pos
|
|
<< " y_pos " << y_pos
|
|
<< " width " << width
|
|
<< " height " << height
|
|
<< " source_width " << data_width
|
|
<< " source_height " << data_height
|
|
<< llendl;
|
|
}
|
|
|
|
|
|
glPixelStorei(GL_UNPACK_ROW_LENGTH, data_width);
|
|
stop_glerror();
|
|
|
|
if(mFormatSwapBytes)
|
|
{
|
|
glPixelStorei(GL_UNPACK_SWAP_BYTES, 1);
|
|
stop_glerror();
|
|
}
|
|
|
|
datap += (y_pos * data_width + x_pos) * getComponents();
|
|
// Update the GL texture
|
|
BOOL res = bindTextureInternal(0);
|
|
if (!res) llerrs << "LLImageGL::setSubImage(): bindTexture failed" << llendl;
|
|
stop_glerror();
|
|
|
|
LLGLEnable tex( GL_TEXTURE_2D );
|
|
|
|
glTexSubImage2D(mTarget, 0, x_pos, y_pos,
|
|
width, height, mFormatPrimary, mFormatType, datap);
|
|
stop_glerror();
|
|
|
|
if(mFormatSwapBytes)
|
|
{
|
|
glPixelStorei(GL_UNPACK_SWAP_BYTES, 0);
|
|
stop_glerror();
|
|
}
|
|
|
|
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
|
|
stop_glerror();
|
|
}
|
|
glFlush();
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL LLImageGL::setSubImage(const LLImageRaw* imageraw, S32 x_pos, S32 y_pos, S32 width, S32 height)
|
|
{
|
|
return setSubImage(imageraw->getData(), imageraw->getWidth(), imageraw->getHeight(), x_pos, y_pos, width, height);
|
|
}
|
|
|
|
// Copy sub image from frame buffer
|
|
BOOL LLImageGL::setSubImageFromFrameBuffer(S32 fb_x, S32 fb_y, S32 x_pos, S32 y_pos, S32 width, S32 height)
|
|
{
|
|
if (bindTextureInternal(0))
|
|
{
|
|
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, fb_x, fb_y, x_pos, y_pos, width, height);
|
|
stop_glerror();
|
|
return TRUE;
|
|
}
|
|
else
|
|
{
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
BOOL LLImageGL::createGLTexture(S32 discard_level, const LLImageRaw* imageraw, S32 usename/*=0*/)
|
|
{
|
|
if (gGLManager.mIsDisabled)
|
|
{
|
|
llwarns << "Trying to create a texture while GL is disabled!" << llendl;
|
|
return FALSE;
|
|
}
|
|
llassert(gGLManager.mInited || gNoRender);
|
|
stop_glerror();
|
|
|
|
if (discard_level < 0)
|
|
{
|
|
llassert(mCurrentDiscardLevel >= 0);
|
|
discard_level = mCurrentDiscardLevel;
|
|
}
|
|
discard_level = llclamp(discard_level, 0, (S32)mMaxDiscardLevel);
|
|
|
|
// Actual image width/height = raw image width/height * 2^discard_level
|
|
S32 w = imageraw->getWidth() << discard_level;
|
|
S32 h = imageraw->getHeight() << discard_level;
|
|
|
|
// setSize may call destroyGLTexture if the size does not match
|
|
setSize(w, h, imageraw->getComponents());
|
|
|
|
if( !mHasExplicitFormat )
|
|
{
|
|
switch (mComponents)
|
|
{
|
|
case 1:
|
|
// Use luminance alpha (for fonts)
|
|
mFormatInternal = GL_LUMINANCE8;
|
|
mFormatPrimary = GL_LUMINANCE;
|
|
mFormatType = GL_UNSIGNED_BYTE;
|
|
break;
|
|
case 2:
|
|
// Use luminance alpha (for fonts)
|
|
mFormatInternal = GL_LUMINANCE8_ALPHA8;
|
|
mFormatPrimary = GL_LUMINANCE_ALPHA;
|
|
mFormatType = GL_UNSIGNED_BYTE;
|
|
break;
|
|
case 3:
|
|
mFormatInternal = GL_RGB8;
|
|
mFormatPrimary = GL_RGB;
|
|
mFormatType = GL_UNSIGNED_BYTE;
|
|
break;
|
|
case 4:
|
|
mFormatInternal = GL_RGBA8;
|
|
mFormatPrimary = GL_RGBA;
|
|
mFormatType = GL_UNSIGNED_BYTE;
|
|
break;
|
|
default:
|
|
llerrs << "Bad number of components for texture: " << (U32)getComponents() << llendl;
|
|
}
|
|
}
|
|
|
|
const U8* rawdata = imageraw->getData();
|
|
return createGLTexture(discard_level, rawdata, FALSE, usename);
|
|
}
|
|
|
|
BOOL LLImageGL::createGLTexture(S32 discard_level, const U8* data_in, BOOL data_hasmips, S32 usename)
|
|
{
|
|
llassert(data_in);
|
|
|
|
if (discard_level < 0)
|
|
{
|
|
llassert(mCurrentDiscardLevel >= 0);
|
|
discard_level = mCurrentDiscardLevel;
|
|
}
|
|
discard_level = llclamp(discard_level, 0, (S32)mMaxDiscardLevel);
|
|
|
|
if (mTexName != 0 && discard_level == mCurrentDiscardLevel)
|
|
{
|
|
// This will only be true if the size has not changed
|
|
setImage(data_in, data_hasmips);
|
|
return TRUE;
|
|
}
|
|
|
|
GLuint old_name = mTexName;
|
|
// S32 old_discard = mCurrentDiscardLevel;
|
|
|
|
if (usename != 0)
|
|
{
|
|
mTexName = usename;
|
|
}
|
|
else
|
|
{
|
|
glGenTextures(1, (GLuint*)&mTexName);
|
|
stop_glerror();
|
|
{
|
|
// LLFastTimer t1(LLFastTimer::FTM_TEMP6);
|
|
llverify(bindTextureInternal(0));
|
|
glTexParameteri(mBindTarget, GL_TEXTURE_BASE_LEVEL, 0);
|
|
glTexParameteri(mBindTarget, GL_TEXTURE_MAX_LEVEL, mMaxDiscardLevel-discard_level);
|
|
}
|
|
}
|
|
if (!mTexName)
|
|
{
|
|
llerrs << "LLImageGL::createGLTexture failed to make texture" << llendl;
|
|
}
|
|
|
|
if (mUseMipMaps)
|
|
{
|
|
mAutoGenMips = gGLManager.mHasMipMapGeneration;
|
|
#if LL_DARWIN
|
|
// On the Mac GF2 and GF4MX drivers, auto mipmap generation doesn't work right with alpha-only textures.
|
|
if(gGLManager.mIsGF2or4MX && (mFormatInternal == GL_ALPHA8) && (mFormatPrimary == GL_ALPHA))
|
|
{
|
|
mAutoGenMips = FALSE;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
mCurrentDiscardLevel = discard_level;
|
|
|
|
setImage(data_in, data_hasmips);
|
|
|
|
setClamp(mClampS, mClampT);
|
|
setMipFilterNearest(mMipFilterNearest);
|
|
|
|
// things will break if we don't unbind after creation
|
|
unbindTexture(0, mBindTarget);
|
|
stop_glerror();
|
|
|
|
if (old_name != 0)
|
|
{
|
|
sGlobalTextureMemory -= mTextureMemory;
|
|
glDeleteTextures(1, &old_name);
|
|
stop_glerror();
|
|
}
|
|
|
|
mTextureMemory = getMipBytes(discard_level);
|
|
sGlobalTextureMemory += mTextureMemory;
|
|
|
|
// mark this as bound at this point, so we don't throw it out immediately
|
|
mLastBindTime = sLastFrameTime;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL LLImageGL::setDiscardLevel(S32 discard_level)
|
|
{
|
|
llassert(discard_level >= 0);
|
|
llassert(mCurrentDiscardLevel >= 0);
|
|
|
|
discard_level = llclamp(discard_level, 0, (S32)mMaxDiscardLevel);
|
|
|
|
if (mDontDiscard)
|
|
{
|
|
// don't discard!
|
|
return FALSE;
|
|
}
|
|
else if (discard_level == mCurrentDiscardLevel)
|
|
{
|
|
// nothing to do
|
|
return FALSE;
|
|
}
|
|
else if (discard_level < mCurrentDiscardLevel)
|
|
{
|
|
// larger image
|
|
dump();
|
|
llerrs << "LLImageGL::setDiscardLevel() called with larger discard level; use createGLTexture()" << llendl;
|
|
return FALSE;
|
|
}
|
|
else if (mUseMipMaps)
|
|
{
|
|
LLPointer<LLImageRaw> imageraw = new LLImageRaw;
|
|
while(discard_level > mCurrentDiscardLevel)
|
|
{
|
|
if (readBackRaw(discard_level, imageraw, false))
|
|
{
|
|
break;
|
|
}
|
|
discard_level--;
|
|
}
|
|
if (discard_level == mCurrentDiscardLevel)
|
|
{
|
|
// unable to increase the discard level
|
|
return FALSE;
|
|
}
|
|
return createGLTexture(discard_level, imageraw);
|
|
}
|
|
else
|
|
{
|
|
#ifndef LL_LINUX // *FIX: This should not be skipped for the linux client.
|
|
llerrs << "LLImageGL::setDiscardLevel() called on image without mipmaps" << llendl;
|
|
#endif
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
BOOL LLImageGL::readBackRaw(S32 discard_level, LLImageRaw* imageraw, bool compressed_ok)
|
|
{
|
|
if (discard_level < 0)
|
|
{
|
|
discard_level = mCurrentDiscardLevel;
|
|
}
|
|
|
|
if (mTexName == 0 || discard_level < mCurrentDiscardLevel)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
S32 gl_discard = discard_level - mCurrentDiscardLevel;
|
|
|
|
llverify(bindTextureInternal(0));
|
|
|
|
LLGLint glwidth = 0;
|
|
glGetTexLevelParameteriv(mTarget, gl_discard, GL_TEXTURE_WIDTH, (GLint*)&glwidth);
|
|
if (glwidth == 0)
|
|
{
|
|
// No mip data smaller than current discard level
|
|
return FALSE;
|
|
}
|
|
|
|
S32 width = getWidth(discard_level);
|
|
S32 height = getHeight(discard_level);
|
|
S32 ncomponents = getComponents();
|
|
if (ncomponents == 0)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
if (width <= 0 || width > 2048 || height <= 0 || height > 2048 || ncomponents < 1 || ncomponents > 4)
|
|
{
|
|
llerrs << llformat("LLImageGL::readBackRaw: bogus params: %d x %d x %d",width,height,ncomponents) << llendl;
|
|
}
|
|
|
|
LLGLint is_compressed = 0;
|
|
if (compressed_ok)
|
|
{
|
|
glGetTexLevelParameteriv(mTarget, is_compressed, GL_TEXTURE_COMPRESSED, (GLint*)&is_compressed);
|
|
}
|
|
if (is_compressed)
|
|
{
|
|
LLGLint glbytes;
|
|
glGetTexLevelParameteriv(mTarget, gl_discard, GL_TEXTURE_COMPRESSED_IMAGE_SIZE, (GLint*)&glbytes);
|
|
imageraw->allocateDataSize(width, height, ncomponents, glbytes);
|
|
glGetCompressedTexImageARB(mTarget, gl_discard, (GLvoid*)(imageraw->getData()));
|
|
stop_glerror();
|
|
}
|
|
else
|
|
{
|
|
imageraw->allocateDataSize(width, height, ncomponents);
|
|
glGetTexImage(GL_TEXTURE_2D, gl_discard, mFormatPrimary, mFormatType, (GLvoid*)(imageraw->getData()));
|
|
stop_glerror();
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void LLImageGL::destroyGLTexture()
|
|
{
|
|
stop_glerror();
|
|
|
|
if (mTexName != 0)
|
|
{
|
|
for (int i = 0; i < gGLManager.mNumTextureUnits; i++)
|
|
{
|
|
if (sCurrentBoundTextures[i] == mTexName)
|
|
{
|
|
unbindTexture(i, GL_TEXTURE_2D);
|
|
stop_glerror();
|
|
}
|
|
}
|
|
|
|
sGlobalTextureMemory -= mTextureMemory;
|
|
mTextureMemory = 0;
|
|
|
|
glDeleteTextures(1, (GLuint*)&mTexName);
|
|
mTexName = 0;
|
|
|
|
stop_glerror();
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------------
|
|
|
|
void LLImageGL::setClamp(BOOL clamps, BOOL clampt)
|
|
{
|
|
mClampS = clamps;
|
|
mClampT = clampt;
|
|
if (mTexName != 0)
|
|
{
|
|
glTexParameteri(mBindTarget, GL_TEXTURE_WRAP_S, clamps ? GL_CLAMP_TO_EDGE : GL_REPEAT);
|
|
glTexParameteri(mBindTarget, GL_TEXTURE_WRAP_T, clampt ? GL_CLAMP_TO_EDGE : GL_REPEAT);
|
|
}
|
|
stop_glerror();
|
|
}
|
|
|
|
void LLImageGL::setMipFilterNearest(BOOL nearest, BOOL min_nearest)
|
|
{
|
|
mMipFilterNearest = nearest;
|
|
|
|
if (mTexName != 0)
|
|
{
|
|
if (min_nearest)
|
|
{
|
|
glTexParameteri(mBindTarget, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
|
}
|
|
else if (mHasMipMaps)
|
|
{
|
|
glTexParameteri(mBindTarget, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
|
|
}
|
|
else
|
|
{
|
|
glTexParameteri(mBindTarget, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
}
|
|
if (mMipFilterNearest)
|
|
{
|
|
glTexParameteri(mBindTarget, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
|
}
|
|
else
|
|
{
|
|
glTexParameteri(mBindTarget, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
}
|
|
if (gGLManager.mHasAnisotropic)
|
|
{
|
|
if (sGlobalUseAnisotropic && !mMipFilterNearest)
|
|
{
|
|
F32 largest_anisotropy;
|
|
glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &largest_anisotropy);
|
|
glTexParameterf(mBindTarget, GL_TEXTURE_MAX_ANISOTROPY_EXT, largest_anisotropy);
|
|
}
|
|
else
|
|
{
|
|
glTexParameterf(mBindTarget, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.f);
|
|
}
|
|
}
|
|
}
|
|
|
|
stop_glerror();
|
|
}
|
|
|
|
BOOL LLImageGL::getIsResident(BOOL test_now)
|
|
{
|
|
if (test_now)
|
|
{
|
|
if (mTexName != 0)
|
|
{
|
|
glAreTexturesResident(1, (GLuint*)&mTexName, &mIsResident);
|
|
}
|
|
else
|
|
{
|
|
mIsResident = FALSE;
|
|
}
|
|
}
|
|
|
|
return mIsResident;
|
|
}
|
|
|
|
S32 LLImageGL::getHeight(S32 discard_level) const
|
|
{
|
|
if (discard_level < 0)
|
|
{
|
|
discard_level = mCurrentDiscardLevel;
|
|
}
|
|
S32 height = mHeight >> discard_level;
|
|
if (height < 1) height = 1;
|
|
return height;
|
|
}
|
|
|
|
S32 LLImageGL::getWidth(S32 discard_level) const
|
|
{
|
|
if (discard_level < 0)
|
|
{
|
|
discard_level = mCurrentDiscardLevel;
|
|
}
|
|
S32 width = mWidth >> discard_level;
|
|
if (width < 1) width = 1;
|
|
return width;
|
|
}
|
|
|
|
S32 LLImageGL::getBytes(S32 discard_level) const
|
|
{
|
|
if (discard_level < 0)
|
|
{
|
|
discard_level = mCurrentDiscardLevel;
|
|
}
|
|
S32 w = mWidth>>discard_level;
|
|
S32 h = mHeight>>discard_level;
|
|
if (w == 0) w = 1;
|
|
if (h == 0) h = 1;
|
|
return dataFormatBytes(mFormatPrimary, w, h);
|
|
}
|
|
|
|
S32 LLImageGL::getMipBytes(S32 discard_level) const
|
|
{
|
|
if (discard_level < 0)
|
|
{
|
|
discard_level = mCurrentDiscardLevel;
|
|
}
|
|
S32 w = mWidth>>discard_level;
|
|
S32 h = mHeight>>discard_level;
|
|
S32 res = dataFormatBytes(mFormatPrimary, w, h);
|
|
if (mUseMipMaps)
|
|
{
|
|
while (w > 1 && h > 1)
|
|
{
|
|
w >>= 1; if (w == 0) w = 1;
|
|
h >>= 1; if (h == 0) h = 1;
|
|
res += dataFormatBytes(mFormatPrimary, w, h);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
BOOL LLImageGL::getBoundRecently() const
|
|
{
|
|
return (BOOL)(sLastFrameTime - mLastBindTime < MIN_TEXTURE_LIFETIME);
|
|
}
|
|
|
|
void LLImageGL::setTarget(const LLGLenum target, const LLGLenum bind_target)
|
|
{
|
|
mTarget = target;
|
|
mBindTarget = bind_target;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------
|
|
|
|
// Manual Mip Generation
|
|
/*
|
|
S32 width = getWidth(discard_level);
|
|
S32 height = getHeight(discard_level);
|
|
S32 w = width, h = height;
|
|
S32 nummips = 1;
|
|
while (w > 4 && h > 4)
|
|
{
|
|
w >>= 1; h >>= 1;
|
|
nummips++;
|
|
}
|
|
stop_glerror();
|
|
w = width, h = height;
|
|
const U8* prev_mip_data = 0;
|
|
const U8* cur_mip_data = 0;
|
|
for (int m=0; m<nummips; m++)
|
|
{
|
|
if (m==0)
|
|
{
|
|
cur_mip_data = rawdata;
|
|
}
|
|
else
|
|
{
|
|
S32 bytes = w * h * mComponents;
|
|
U8* new_data = new U8[bytes];
|
|
LLImageBase::generateMip(prev_mip_data, new_data, w, h, mComponents);
|
|
cur_mip_data = new_data;
|
|
}
|
|
llassert(w > 0 && h > 0 && cur_mip_data);
|
|
U8 test = cur_mip_data[w*h*mComponents-1];
|
|
{
|
|
glTexImage2D(mTarget, m, mFormatInternal, w, h, 0, mFormatPrimary, mFormatType, cur_mip_data);
|
|
stop_glerror();
|
|
}
|
|
if (prev_mip_data && prev_mip_data != rawdata)
|
|
{
|
|
delete prev_mip_data;
|
|
}
|
|
prev_mip_data = cur_mip_data;
|
|
w >>= 1;
|
|
h >>= 1;
|
|
}
|
|
if (prev_mip_data && prev_mip_data != rawdata)
|
|
{
|
|
delete prev_mip_data;
|
|
}
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, nummips);
|
|
*/
|