diff options
Diffstat (limited to 'indra/llrender/llrendertarget.h')
| -rwxr-xr-x[-rw-r--r--] | indra/llrender/llrendertarget.h | 110 |
1 files changed, 45 insertions, 65 deletions
diff --git a/indra/llrender/llrendertarget.h b/indra/llrender/llrendertarget.h index b7ebfc8f7f..6dc84d978d 100644..100755 --- a/indra/llrender/llrendertarget.h +++ b/indra/llrender/llrendertarget.h @@ -2,31 +2,25 @@ * @file llrendertarget.h * @brief Off screen render target abstraction. Loose wrapper for GL_EXT_framebuffer_objects. * - * $LicenseInfo:firstyear=2001&license=viewergpl$ - * - * Copyright (c) 2001-2009, Linden Research, Inc. - * + * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * Second Life Viewer Source Code - * The source code in this file ("Source Code") is provided by Linden Lab - * to you under the terms of the GNU General Public License, version 2.0 - * ("GPL"), unless you have obtained a separate licensing agreement - * ("Other License"), formally executed by you and Linden Lab. Terms of - * the GPL can be found in doc/GPL-license.txt in this distribution, or - * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 + * Copyright (C) 2010, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. * - * There are special exceptions to the terms and conditions of the GPL as - * it is applied to this Source Code. View the full text of the exception - * in the file doc/FLOSS-exception.txt in this software distribution, or - * online at - * http://secondlifegrid.net/programs/open_source/licensing/flossexception + * This library 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 + * Lesser General Public License for more details. * - * By copying, modifying or distributing this software, you acknowledge - * that you have read and understood your obligations described above, - * and agree to abide by those obligations. + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * - * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO - * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, - * COMPLETENESS OR PERFORMANCE. + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -34,7 +28,6 @@ #define LL_LLRENDERTARGET_H // LLRenderTarget is unavailible on the mapserver since it uses FBOs. -#if !LL_MESA_HEADLESS #include "llgl.h" #include "llrender.h" @@ -63,34 +56,40 @@ */ -class LLMultisampleBuffer; - class LLRenderTarget { public: //whether or not to use FBO implementation - static BOOL sUseFBO; + static bool sUseFBO; + static U32 sBytesAllocated; + static U32 sCurFBO; + static U32 sCurResX; + static U32 sCurResY; + LLRenderTarget(); - virtual ~LLRenderTarget(); + ~LLRenderTarget(); //allocate resources for rendering //must be called before use //multiple calls will release previously allocated resources - void allocate(U32 resx, U32 resy, U32 color_fmt, BOOL depth, BOOL stencil, LLTexUnit::eTextureType usage = LLTexUnit::TT_TEXTURE, BOOL use_fbo = FALSE); + bool allocate(U32 resx, U32 resy, U32 color_fmt, bool depth, bool stencil, LLTexUnit::eTextureType usage = LLTexUnit::TT_TEXTURE, bool use_fbo = false, S32 samples = 0); - //provide this render target with a multisample resource. - void setSampleBuffer(LLMultisampleBuffer* buffer); + //resize existing attachments to use new resolution and color format + // CAUTION: if the GL runs out of memory attempting to resize, this render target will be undefined + // DO NOT use for screen space buffers or for scratch space for an image that might be uploaded + // DO use for render targets that resize often and aren't likely to ruin someone's day if they break + void resize(U32 resx, U32 resy); //add color buffer attachment //limit of 4 color attachments per render target - virtual void addColorAttachment(U32 color_fmt); + bool addColorAttachment(U32 color_fmt); //allocate a depth texture - virtual void allocateDepth(); + bool allocateDepth(); //share depth buffer with provided render target - virtual void shareDepthBuffer(LLRenderTarget& target); + void shareDepthBuffer(LLRenderTarget& target); //free any allocated resources //safe to call redundantly @@ -98,11 +97,8 @@ public: //bind target for rendering //applies appropriate viewport - virtual void bindTarget(); + void bindTarget(); - //unbind target for rendering - static void unbindTarget(); - //clear render targer, clears depth buffer if present, //uses scissor rect if in copy-to-texture mode void clear(U32 mask = 0xFFFFFFFF); @@ -119,9 +115,10 @@ public: LLTexUnit::eTextureType getUsage(void) const { return mUsage; } U32 getTexture(U32 attachment = 0) const; + U32 getNumTextures() const; U32 getDepth(void) const { return mDepth; } - BOOL hasStencil() const { return mStencil; } + bool hasStencil() const { return mStencil; } void bindTexture(U32 index, S32 channel); @@ -131,7 +128,7 @@ public: // call bindTarget once, do all your rendering, call flush once // if fetch_depth is TRUE, every effort will be made to copy the depth buffer into // the current depth texture. A depth texture will be allocated if needed. - void flush(BOOL fetch_depth = FALSE); + void flush(bool fetch_depth = FALSE); void copyContents(LLRenderTarget& source, S32 srcX0, S32 srcY0, S32 srcX1, S32 srcY1, S32 dstX0, S32 dstY0, S32 dstX1, S32 dstY1, U32 mask, U32 filter); @@ -142,45 +139,28 @@ public: //Returns TRUE if target is ready to be rendered into. //That is, if the target has been allocated with at least //one renderable attachment (i.e. color buffer, depth buffer). - BOOL isComplete() const; + bool isComplete() const; static LLRenderTarget* getCurrentBoundTarget() { return sBoundTarget; } protected: - friend class LLMultisampleBuffer; U32 mResX; U32 mResY; std::vector<U32> mTex; + std::vector<U32> mInternalFormat; U32 mFBO; + U32 mPreviousFBO; + U32 mPreviousResX; + U32 mPreviousResY; + U32 mDepth; - BOOL mStencil; - BOOL mUseDepth; - BOOL mRenderDepth; + bool mStencil; + bool mUseDepth; + bool mRenderDepth; LLTexUnit::eTextureType mUsage; - U32 mSamples; - LLMultisampleBuffer* mSampleBuffer; - - static LLRenderTarget* sBoundTarget; + static LLRenderTarget* sBoundTarget; }; -class LLMultisampleBuffer : public LLRenderTarget -{ -public: - LLMultisampleBuffer(); - virtual ~LLMultisampleBuffer(); - - void releaseSampleBuffer(); - - virtual void bindTarget(); - void bindTarget(LLRenderTarget* ref); - virtual void allocate(U32 resx, U32 resy, U32 color_fmt, BOOL depth, BOOL stencil, LLTexUnit::eTextureType usage, BOOL use_fbo); - void allocate(U32 resx, U32 resy, U32 color_fmt, BOOL depth, BOOL stencil, LLTexUnit::eTextureType usage, BOOL use_fbo, U32 samples); - virtual void addColorAttachment(U32 color_fmt); - virtual void allocateDepth(); -}; - -#endif //!LL_MESA_HEADLESS - #endif |