diff options
Diffstat (limited to 'indra/newview/llvlcomposition.cpp')
| -rw-r--r-- | indra/newview/llvlcomposition.cpp | 788 |
1 files changed, 394 insertions, 394 deletions
diff --git a/indra/newview/llvlcomposition.cpp b/indra/newview/llvlcomposition.cpp index 001fab7755..c3334866a5 100644 --- a/indra/newview/llvlcomposition.cpp +++ b/indra/newview/llvlcomposition.cpp @@ -1,25 +1,25 @@ -/** +/** * @file llvlcomposition.cpp * @brief Viewer-side representation of a composition layer... * * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * Second Life Viewer Source Code * 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. - * + * * 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. - * + * * 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 - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -43,42 +43,42 @@ F32 bilinear(const F32 v00, const F32 v01, const F32 v10, const F32 v11, const F32 x_frac, const F32 y_frac) { - // Not sure if this is the right math... - // Take weighted average of all four points (bilinear interpolation) - F32 result; - - const F32 inv_x_frac = 1.f - x_frac; - const F32 inv_y_frac = 1.f - y_frac; - result = inv_x_frac*inv_y_frac*v00 - + x_frac*inv_y_frac*v10 - + inv_x_frac*y_frac*v01 - + x_frac*y_frac*v11; - - return result; + // Not sure if this is the right math... + // Take weighted average of all four points (bilinear interpolation) + F32 result; + + const F32 inv_x_frac = 1.f - x_frac; + const F32 inv_y_frac = 1.f - y_frac; + result = inv_x_frac*inv_y_frac*v00 + + x_frac*inv_y_frac*v10 + + inv_x_frac*y_frac*v01 + + x_frac*y_frac*v11; + + return result; } LLVLComposition::LLVLComposition(LLSurface *surfacep, const U32 width, const F32 scale) : - LLViewerLayer(width, scale), - mParamsReady(FALSE) + LLViewerLayer(width, scale), + mParamsReady(FALSE) { - mSurfacep = surfacep; - - // Load Terrain Textures - Original ones - setDetailTextureID(0, TERRAIN_DIRT_DETAIL); - setDetailTextureID(1, TERRAIN_GRASS_DETAIL); - setDetailTextureID(2, TERRAIN_MOUNTAIN_DETAIL); - setDetailTextureID(3, TERRAIN_ROCK_DETAIL); - - // Initialize the texture matrix to defaults. - for (S32 i = 0; i < CORNER_COUNT; ++i) - { - mStartHeight[i] = gSavedSettings.getF32("TerrainColorStartHeight"); - mHeightRange[i] = gSavedSettings.getF32("TerrainColorHeightRange"); - } - mTexScaleX = 16.f; - mTexScaleY = 16.f; - mTexturesLoaded = FALSE; + mSurfacep = surfacep; + + // Load Terrain Textures - Original ones + setDetailTextureID(0, TERRAIN_DIRT_DETAIL); + setDetailTextureID(1, TERRAIN_GRASS_DETAIL); + setDetailTextureID(2, TERRAIN_MOUNTAIN_DETAIL); + setDetailTextureID(3, TERRAIN_ROCK_DETAIL); + + // Initialize the texture matrix to defaults. + for (S32 i = 0; i < CORNER_COUNT; ++i) + { + mStartHeight[i] = gSavedSettings.getF32("TerrainColorStartHeight"); + mHeightRange[i] = gSavedSettings.getF32("TerrainColorHeightRange"); + } + mTexScaleX = 16.f; + mTexScaleY = 16.f; + mTexturesLoaded = FALSE; } @@ -89,124 +89,124 @@ LLVLComposition::~LLVLComposition() void LLVLComposition::setSurface(LLSurface *surfacep) { - mSurfacep = surfacep; + mSurfacep = surfacep; } void LLVLComposition::setDetailTextureID(S32 corner, const LLUUID& id) { - if(id.isNull()) - { - return; - } - // This is terrain texture, but we are not setting it as BOOST_TERRAIN - // since we will be manipulating it later as needed. - mDetailTextures[corner] = LLViewerTextureManager::getFetchedTexture(id); - mDetailTextures[corner]->setNoDelete() ; - mRawImages[corner] = NULL; + if(id.isNull()) + { + return; + } + // This is terrain texture, but we are not setting it as BOOST_TERRAIN + // since we will be manipulating it later as needed. + mDetailTextures[corner] = LLViewerTextureManager::getFetchedTexture(id); + mDetailTextures[corner]->setNoDelete() ; + mRawImages[corner] = NULL; } BOOL LLVLComposition::generateHeights(const F32 x, const F32 y, - const F32 width, const F32 height) + const F32 width, const F32 height) { - if (!mParamsReady) - { - // All the parameters haven't been set yet (we haven't gotten the message from the sim) - return FALSE; - } - - llassert(mSurfacep); - - if (!mSurfacep || !mSurfacep->getRegion()) - { - // We don't always have the region yet here.... - return FALSE; - } - - S32 x_begin, y_begin, x_end, y_end; - - x_begin = ll_round( x * mScaleInv ); - y_begin = ll_round( y * mScaleInv ); - x_end = ll_round( (x + width) * mScaleInv ); - y_end = ll_round( (y + width) * mScaleInv ); - - if (x_end > mWidth) - { - x_end = mWidth; - } - if (y_end > mWidth) - { - y_end = mWidth; - } - - LLVector3d origin_global = from_region_handle(mSurfacep->getRegion()->getHandle()); - - // For perlin noise generation... - const F32 slope_squared = 1.5f*1.5f; - const F32 xyScale = 4.9215f; //0.93284f; - const F32 zScale = 4; //0.92165f; - const F32 z_offset = 0.f; - const F32 noise_magnitude = 2.f; // Degree to which noise modulates composition layer (versus - // simple height) - - // Heights map into textures as 0-1 = first, 1-2 = second, etc. - // So we need to compress heights into this range. - const S32 NUM_TEXTURES = 4; - - const F32 xyScaleInv = (1.f / xyScale); - const F32 zScaleInv = (1.f / zScale); - - const F32 inv_width = 1.f/mWidth; - - // OK, for now, just have the composition value equal the height at the point. - for (S32 j = y_begin; j < y_end; j++) - { - for (S32 i = x_begin; i < x_end; i++) - { - - F32 vec[3]; - F32 vec1[3]; - F32 twiddle; - - // Bilinearly interpolate the start height and height range of the textures - F32 start_height = bilinear(mStartHeight[SOUTHWEST], - mStartHeight[SOUTHEAST], - mStartHeight[NORTHWEST], - mStartHeight[NORTHEAST], - i*inv_width, j*inv_width); // These will be bilinearly interpolated - F32 height_range = bilinear(mHeightRange[SOUTHWEST], - mHeightRange[SOUTHEAST], - mHeightRange[NORTHWEST], - mHeightRange[NORTHEAST], - i*inv_width, j*inv_width); // These will be bilinearly interpolated - - LLVector3 location(i*mScale, j*mScale, 0.f); - - F32 height = mSurfacep->resolveHeightRegion(location) + z_offset; - - // Step 0: Measure the exact height at this texel - vec[0] = (F32)(origin_global.mdV[VX]+location.mV[VX])*xyScaleInv; // Adjust to non-integer lattice - vec[1] = (F32)(origin_global.mdV[VY]+location.mV[VY])*xyScaleInv; - vec[2] = height*zScaleInv; - // - // Choose material value by adding to the exact height a random value - // - vec1[0] = vec[0]*(0.2222222222f); - vec1[1] = vec[1]*(0.2222222222f); - vec1[2] = vec[2]*(0.2222222222f); - twiddle = noise2(vec1)*6.5f; // Low freq component for large divisions - - twiddle += turbulence2(vec, 2)*slope_squared; // High frequency component - twiddle *= noise_magnitude; - - F32 scaled_noisy_height = (height + twiddle - start_height) * F32(NUM_TEXTURES) / height_range; - - scaled_noisy_height = llmax(0.f, scaled_noisy_height); - scaled_noisy_height = llmin(3.f, scaled_noisy_height); - *(mDatap + i + j*mWidth) = scaled_noisy_height; - } - } - return TRUE; + if (!mParamsReady) + { + // All the parameters haven't been set yet (we haven't gotten the message from the sim) + return FALSE; + } + + llassert(mSurfacep); + + if (!mSurfacep || !mSurfacep->getRegion()) + { + // We don't always have the region yet here.... + return FALSE; + } + + S32 x_begin, y_begin, x_end, y_end; + + x_begin = ll_round( x * mScaleInv ); + y_begin = ll_round( y * mScaleInv ); + x_end = ll_round( (x + width) * mScaleInv ); + y_end = ll_round( (y + width) * mScaleInv ); + + if (x_end > mWidth) + { + x_end = mWidth; + } + if (y_end > mWidth) + { + y_end = mWidth; + } + + LLVector3d origin_global = from_region_handle(mSurfacep->getRegion()->getHandle()); + + // For perlin noise generation... + const F32 slope_squared = 1.5f*1.5f; + const F32 xyScale = 4.9215f; //0.93284f; + const F32 zScale = 4; //0.92165f; + const F32 z_offset = 0.f; + const F32 noise_magnitude = 2.f; // Degree to which noise modulates composition layer (versus + // simple height) + + // Heights map into textures as 0-1 = first, 1-2 = second, etc. + // So we need to compress heights into this range. + const S32 NUM_TEXTURES = 4; + + const F32 xyScaleInv = (1.f / xyScale); + const F32 zScaleInv = (1.f / zScale); + + const F32 inv_width = 1.f/mWidth; + + // OK, for now, just have the composition value equal the height at the point. + for (S32 j = y_begin; j < y_end; j++) + { + for (S32 i = x_begin; i < x_end; i++) + { + + F32 vec[3]; + F32 vec1[3]; + F32 twiddle; + + // Bilinearly interpolate the start height and height range of the textures + F32 start_height = bilinear(mStartHeight[SOUTHWEST], + mStartHeight[SOUTHEAST], + mStartHeight[NORTHWEST], + mStartHeight[NORTHEAST], + i*inv_width, j*inv_width); // These will be bilinearly interpolated + F32 height_range = bilinear(mHeightRange[SOUTHWEST], + mHeightRange[SOUTHEAST], + mHeightRange[NORTHWEST], + mHeightRange[NORTHEAST], + i*inv_width, j*inv_width); // These will be bilinearly interpolated + + LLVector3 location(i*mScale, j*mScale, 0.f); + + F32 height = mSurfacep->resolveHeightRegion(location) + z_offset; + + // Step 0: Measure the exact height at this texel + vec[0] = (F32)(origin_global.mdV[VX]+location.mV[VX])*xyScaleInv; // Adjust to non-integer lattice + vec[1] = (F32)(origin_global.mdV[VY]+location.mV[VY])*xyScaleInv; + vec[2] = height*zScaleInv; + // + // Choose material value by adding to the exact height a random value + // + vec1[0] = vec[0]*(0.2222222222f); + vec1[1] = vec[1]*(0.2222222222f); + vec1[2] = vec[2]*(0.2222222222f); + twiddle = noise2(vec1)*6.5f; // Low freq component for large divisions + + twiddle += turbulence2(vec, 2)*slope_squared; // High frequency component + twiddle *= noise_magnitude; + + F32 scaled_noisy_height = (height + twiddle - start_height) * F32(NUM_TEXTURES) / height_range; + + scaled_noisy_height = llmax(0.f, scaled_noisy_height); + scaled_noisy_height = llmin(3.f, scaled_noisy_height); + *(mDatap + i + j*mWidth) = scaled_noisy_height; + } + } + return TRUE; } static const U32 BASE_SIZE = 128; @@ -214,287 +214,287 @@ static const U32 BASE_SIZE = 128; BOOL LLVLComposition::generateComposition() { - if (!mParamsReady) - { - // All the parameters haven't been set yet (we haven't gotten the message from the sim) - return FALSE; - } - - for (S32 i = 0; i < 4; i++) - { - if (mDetailTextures[i]->getDiscardLevel() < 0) - { - mDetailTextures[i]->setBoostLevel(LLGLTexture::BOOST_TERRAIN); // in case we are at low detail - mDetailTextures[i]->addTextureStats(BASE_SIZE*BASE_SIZE); - return FALSE; - } - if ((mDetailTextures[i]->getDiscardLevel() != 0 && - (mDetailTextures[i]->getWidth() < BASE_SIZE || - mDetailTextures[i]->getHeight() < BASE_SIZE))) - { - S32 width = mDetailTextures[i]->getFullWidth(); - S32 height = mDetailTextures[i]->getFullHeight(); - S32 min_dim = llmin(width, height); - S32 ddiscard = 0; - while (min_dim > BASE_SIZE && ddiscard < MAX_DISCARD_LEVEL) - { - ddiscard++; - min_dim /= 2; - } - mDetailTextures[i]->setBoostLevel(LLGLTexture::BOOST_TERRAIN); // in case we are at low detail - mDetailTextures[i]->setMinDiscardLevel(ddiscard); - mDetailTextures[i]->addTextureStats(BASE_SIZE*BASE_SIZE); // priority - return FALSE; - } - } - - return TRUE; + if (!mParamsReady) + { + // All the parameters haven't been set yet (we haven't gotten the message from the sim) + return FALSE; + } + + for (S32 i = 0; i < 4; i++) + { + if (mDetailTextures[i]->getDiscardLevel() < 0) + { + mDetailTextures[i]->setBoostLevel(LLGLTexture::BOOST_TERRAIN); // in case we are at low detail + mDetailTextures[i]->addTextureStats(BASE_SIZE*BASE_SIZE); + return FALSE; + } + if ((mDetailTextures[i]->getDiscardLevel() != 0 && + (mDetailTextures[i]->getWidth() < BASE_SIZE || + mDetailTextures[i]->getHeight() < BASE_SIZE))) + { + S32 width = mDetailTextures[i]->getFullWidth(); + S32 height = mDetailTextures[i]->getFullHeight(); + S32 min_dim = llmin(width, height); + S32 ddiscard = 0; + while (min_dim > BASE_SIZE && ddiscard < MAX_DISCARD_LEVEL) + { + ddiscard++; + min_dim /= 2; + } + mDetailTextures[i]->setBoostLevel(LLGLTexture::BOOST_TERRAIN); // in case we are at low detail + mDetailTextures[i]->setMinDiscardLevel(ddiscard); + mDetailTextures[i]->addTextureStats(BASE_SIZE*BASE_SIZE); // priority + return FALSE; + } + } + + return TRUE; } BOOL LLVLComposition::generateTexture(const F32 x, const F32 y, - const F32 width, const F32 height) + const F32 width, const F32 height) { - LL_PROFILE_ZONE_SCOPED - llassert(mSurfacep); - llassert(x >= 0.f); - llassert(y >= 0.f); - - LLTimer gen_timer; - - /////////////////////////// - // - // Generate raw data arrays for surface textures - // - // - - // These have already been validated by generateComposition. - U8* st_data[4]; - S32 st_data_size[4]; // for debugging - - for (S32 i = 0; i < 4; i++) - { - if (mRawImages[i].isNull()) - { - // Read back a raw image for this discard level, if it exists - S32 min_dim = llmin(mDetailTextures[i]->getFullWidth(), mDetailTextures[i]->getFullHeight()); - S32 ddiscard = 0; - while (min_dim > BASE_SIZE && ddiscard < MAX_DISCARD_LEVEL) - { - ddiscard++; - min_dim /= 2; - } - - BOOL delete_raw = (mDetailTextures[i]->reloadRawImage(ddiscard) != NULL) ; - if(mDetailTextures[i]->getRawImageLevel() != ddiscard)//raw iamge is not ready, will enter here again later. - { + LL_PROFILE_ZONE_SCOPED + llassert(mSurfacep); + llassert(x >= 0.f); + llassert(y >= 0.f); + + LLTimer gen_timer; + + /////////////////////////// + // + // Generate raw data arrays for surface textures + // + // + + // These have already been validated by generateComposition. + U8* st_data[4]; + S32 st_data_size[4]; // for debugging + + for (S32 i = 0; i < 4; i++) + { + if (mRawImages[i].isNull()) + { + // Read back a raw image for this discard level, if it exists + S32 min_dim = llmin(mDetailTextures[i]->getFullWidth(), mDetailTextures[i]->getFullHeight()); + S32 ddiscard = 0; + while (min_dim > BASE_SIZE && ddiscard < MAX_DISCARD_LEVEL) + { + ddiscard++; + min_dim /= 2; + } + + BOOL delete_raw = (mDetailTextures[i]->reloadRawImage(ddiscard) != NULL) ; + if(mDetailTextures[i]->getRawImageLevel() != ddiscard)//raw iamge is not ready, will enter here again later. + { if (mDetailTextures[i]->getFetchPriority() <= 0.0f && !mDetailTextures[i]->hasSavedRawImage()) { mDetailTextures[i]->setBoostLevel(LLGLTexture::BOOST_MAP); mDetailTextures[i]->forceToRefetchTexture(ddiscard); } - if(delete_raw) - { - mDetailTextures[i]->destroyRawImage() ; - } - LL_DEBUGS("Terrain") << "cached raw data for terrain detail texture is not ready yet: " << mDetailTextures[i]->getID() << " Discard: " << ddiscard << LL_ENDL; - return FALSE; - } - - mRawImages[i] = mDetailTextures[i]->getRawImage() ; - if(delete_raw) - { - mDetailTextures[i]->destroyRawImage() ; - } - if (mDetailTextures[i]->getWidth(ddiscard) != BASE_SIZE || - mDetailTextures[i]->getHeight(ddiscard) != BASE_SIZE || - mDetailTextures[i]->getComponents() != 3) - { - LLPointer<LLImageRaw> newraw = new LLImageRaw(BASE_SIZE, BASE_SIZE, 3); - newraw->composite(mRawImages[i]); - mRawImages[i] = newraw; // deletes old - } - } - st_data[i] = mRawImages[i]->getData(); - st_data_size[i] = mRawImages[i]->getDataSize(); - } - - /////////////////////////////////////// - // - // Generate and clamp x/y bounding box. - // - // - - S32 x_begin, y_begin, x_end, y_end; - x_begin = (S32)(x * mScaleInv); - y_begin = (S32)(y * mScaleInv); - x_end = ll_round( (x + width) * mScaleInv ); - y_end = ll_round( (y + width) * mScaleInv ); - - if (x_end > mWidth) - { - LL_WARNS("Terrain") << "x end > width" << LL_ENDL; - x_end = mWidth; - } - if (y_end > mWidth) - { - LL_WARNS("Terrain") << "y end > width" << LL_ENDL; - y_end = mWidth; - } - - - /////////////////////////////////////////// - // - // Generate target texture information, stride ratios. - // - // - - LLViewerTexture *texturep; - U32 tex_width, tex_height, tex_comps; - U32 tex_stride; - F32 tex_x_scalef, tex_y_scalef; - S32 tex_x_begin, tex_y_begin, tex_x_end, tex_y_end; - F32 tex_x_ratiof, tex_y_ratiof; - - texturep = mSurfacep->getSTexture(); - tex_width = texturep->getWidth(); - tex_height = texturep->getHeight(); - tex_comps = texturep->getComponents(); - tex_stride = tex_width * tex_comps; - - U32 st_comps = 3; - U32 st_width = BASE_SIZE; - U32 st_height = BASE_SIZE; - - if (tex_comps != st_comps) - { - LL_WARNS("Terrain") << "Base texture comps != input texture comps" << LL_ENDL; - return FALSE; - } - - tex_x_scalef = (F32)tex_width / (F32)mWidth; - tex_y_scalef = (F32)tex_height / (F32)mWidth; - tex_x_begin = (S32)((F32)x_begin * tex_x_scalef); - tex_y_begin = (S32)((F32)y_begin * tex_y_scalef); - tex_x_end = (S32)((F32)x_end * tex_x_scalef); - tex_y_end = (S32)((F32)y_end * tex_y_scalef); - - tex_x_ratiof = (F32)mWidth*mScale / (F32)tex_width; - tex_y_ratiof = (F32)mWidth*mScale / (F32)tex_height; - - LLPointer<LLImageRaw> raw = new LLImageRaw(tex_width, tex_height, tex_comps); - U8 *rawp = raw->getData(); - - F32 st_x_stride, st_y_stride; - st_x_stride = ((F32)st_width / (F32)mTexScaleX)*((F32)mWidth / (F32)tex_width); - st_y_stride = ((F32)st_height / (F32)mTexScaleY)*((F32)mWidth / (F32)tex_height); - - llassert(st_x_stride > 0.f); - llassert(st_y_stride > 0.f); - //////////////////////////////// - // - // Iterate through the target texture, striding through the - // subtextures and interpolating appropriately. - // - // - - F32 sti, stj; - S32 st_offset; - sti = (tex_x_begin * st_x_stride) - st_width*(llfloor((tex_x_begin * st_x_stride)/st_width)); - stj = (tex_y_begin * st_y_stride) - st_height*(llfloor((tex_y_begin * st_y_stride)/st_height)); - - st_offset = (llfloor(stj * st_width) + llfloor(sti)) * st_comps; - for (S32 j = tex_y_begin; j < tex_y_end; j++) - { - U32 offset = j * tex_stride + tex_x_begin * tex_comps; - sti = (tex_x_begin * st_x_stride) - st_width*((U32)(tex_x_begin * st_x_stride)/st_width); - for (S32 i = tex_x_begin; i < tex_x_end; i++) - { - S32 tex0, tex1; - F32 composition = getValueScaled(i*tex_x_ratiof, j*tex_y_ratiof); - - tex0 = llfloor( composition ); - tex0 = llclamp(tex0, 0, 3); - composition -= tex0; - tex1 = tex0 + 1; - tex1 = llclamp(tex1, 0, 3); - - st_offset = (lltrunc(sti) + lltrunc(stj)*st_width) * st_comps; - for (U32 k = 0; k < tex_comps; k++) - { - // Linearly interpolate based on composition. - if (st_offset >= st_data_size[tex0] || st_offset >= st_data_size[tex1]) - { - // SJB: This shouldn't be happening, but does... Rounding error? - //LL_WARNS() << "offset 0 [" << tex0 << "] =" << st_offset << " >= size=" << st_data_size[tex0] << LL_ENDL; - //LL_WARNS() << "offset 1 [" << tex1 << "] =" << st_offset << " >= size=" << st_data_size[tex1] << LL_ENDL; - } - else - { - F32 a = *(st_data[tex0] + st_offset); - F32 b = *(st_data[tex1] + st_offset); - rawp[ offset ] = (U8)lltrunc( a + composition * (b - a) ); - } - offset++; - st_offset++; - } - - sti += st_x_stride; - if (sti >= st_width) - { - sti -= st_width; - } - } - - stj += st_y_stride; - if (stj >= st_height) - { - stj -= st_height; - } - } - - if (!texturep->hasGLTexture()) - { - texturep->createGLTexture(0, raw); - } - texturep->setSubImage(raw, tex_x_begin, tex_y_begin, tex_x_end - tex_x_begin, tex_y_end - tex_y_begin); - - for (S32 i = 0; i < 4; i++) - { - // Un-boost detatil textures (will get re-boosted if rendering in high detail) - mDetailTextures[i]->setBoostLevel(LLGLTexture::BOOST_NONE); - mDetailTextures[i]->setMinDiscardLevel(MAX_DISCARD_LEVEL + 1); - } - - return TRUE; + if(delete_raw) + { + mDetailTextures[i]->destroyRawImage() ; + } + LL_DEBUGS("Terrain") << "cached raw data for terrain detail texture is not ready yet: " << mDetailTextures[i]->getID() << " Discard: " << ddiscard << LL_ENDL; + return FALSE; + } + + mRawImages[i] = mDetailTextures[i]->getRawImage() ; + if(delete_raw) + { + mDetailTextures[i]->destroyRawImage() ; + } + if (mDetailTextures[i]->getWidth(ddiscard) != BASE_SIZE || + mDetailTextures[i]->getHeight(ddiscard) != BASE_SIZE || + mDetailTextures[i]->getComponents() != 3) + { + LLPointer<LLImageRaw> newraw = new LLImageRaw(BASE_SIZE, BASE_SIZE, 3); + newraw->composite(mRawImages[i]); + mRawImages[i] = newraw; // deletes old + } + } + st_data[i] = mRawImages[i]->getData(); + st_data_size[i] = mRawImages[i]->getDataSize(); + } + + /////////////////////////////////////// + // + // Generate and clamp x/y bounding box. + // + // + + S32 x_begin, y_begin, x_end, y_end; + x_begin = (S32)(x * mScaleInv); + y_begin = (S32)(y * mScaleInv); + x_end = ll_round( (x + width) * mScaleInv ); + y_end = ll_round( (y + width) * mScaleInv ); + + if (x_end > mWidth) + { + LL_WARNS("Terrain") << "x end > width" << LL_ENDL; + x_end = mWidth; + } + if (y_end > mWidth) + { + LL_WARNS("Terrain") << "y end > width" << LL_ENDL; + y_end = mWidth; + } + + + /////////////////////////////////////////// + // + // Generate target texture information, stride ratios. + // + // + + LLViewerTexture *texturep; + U32 tex_width, tex_height, tex_comps; + U32 tex_stride; + F32 tex_x_scalef, tex_y_scalef; + S32 tex_x_begin, tex_y_begin, tex_x_end, tex_y_end; + F32 tex_x_ratiof, tex_y_ratiof; + + texturep = mSurfacep->getSTexture(); + tex_width = texturep->getWidth(); + tex_height = texturep->getHeight(); + tex_comps = texturep->getComponents(); + tex_stride = tex_width * tex_comps; + + U32 st_comps = 3; + U32 st_width = BASE_SIZE; + U32 st_height = BASE_SIZE; + + if (tex_comps != st_comps) + { + LL_WARNS("Terrain") << "Base texture comps != input texture comps" << LL_ENDL; + return FALSE; + } + + tex_x_scalef = (F32)tex_width / (F32)mWidth; + tex_y_scalef = (F32)tex_height / (F32)mWidth; + tex_x_begin = (S32)((F32)x_begin * tex_x_scalef); + tex_y_begin = (S32)((F32)y_begin * tex_y_scalef); + tex_x_end = (S32)((F32)x_end * tex_x_scalef); + tex_y_end = (S32)((F32)y_end * tex_y_scalef); + + tex_x_ratiof = (F32)mWidth*mScale / (F32)tex_width; + tex_y_ratiof = (F32)mWidth*mScale / (F32)tex_height; + + LLPointer<LLImageRaw> raw = new LLImageRaw(tex_width, tex_height, tex_comps); + U8 *rawp = raw->getData(); + + F32 st_x_stride, st_y_stride; + st_x_stride = ((F32)st_width / (F32)mTexScaleX)*((F32)mWidth / (F32)tex_width); + st_y_stride = ((F32)st_height / (F32)mTexScaleY)*((F32)mWidth / (F32)tex_height); + + llassert(st_x_stride > 0.f); + llassert(st_y_stride > 0.f); + //////////////////////////////// + // + // Iterate through the target texture, striding through the + // subtextures and interpolating appropriately. + // + // + + F32 sti, stj; + S32 st_offset; + sti = (tex_x_begin * st_x_stride) - st_width*(llfloor((tex_x_begin * st_x_stride)/st_width)); + stj = (tex_y_begin * st_y_stride) - st_height*(llfloor((tex_y_begin * st_y_stride)/st_height)); + + st_offset = (llfloor(stj * st_width) + llfloor(sti)) * st_comps; + for (S32 j = tex_y_begin; j < tex_y_end; j++) + { + U32 offset = j * tex_stride + tex_x_begin * tex_comps; + sti = (tex_x_begin * st_x_stride) - st_width*((U32)(tex_x_begin * st_x_stride)/st_width); + for (S32 i = tex_x_begin; i < tex_x_end; i++) + { + S32 tex0, tex1; + F32 composition = getValueScaled(i*tex_x_ratiof, j*tex_y_ratiof); + + tex0 = llfloor( composition ); + tex0 = llclamp(tex0, 0, 3); + composition -= tex0; + tex1 = tex0 + 1; + tex1 = llclamp(tex1, 0, 3); + + st_offset = (lltrunc(sti) + lltrunc(stj)*st_width) * st_comps; + for (U32 k = 0; k < tex_comps; k++) + { + // Linearly interpolate based on composition. + if (st_offset >= st_data_size[tex0] || st_offset >= st_data_size[tex1]) + { + // SJB: This shouldn't be happening, but does... Rounding error? + //LL_WARNS() << "offset 0 [" << tex0 << "] =" << st_offset << " >= size=" << st_data_size[tex0] << LL_ENDL; + //LL_WARNS() << "offset 1 [" << tex1 << "] =" << st_offset << " >= size=" << st_data_size[tex1] << LL_ENDL; + } + else + { + F32 a = *(st_data[tex0] + st_offset); + F32 b = *(st_data[tex1] + st_offset); + rawp[ offset ] = (U8)lltrunc( a + composition * (b - a) ); + } + offset++; + st_offset++; + } + + sti += st_x_stride; + if (sti >= st_width) + { + sti -= st_width; + } + } + + stj += st_y_stride; + if (stj >= st_height) + { + stj -= st_height; + } + } + + if (!texturep->hasGLTexture()) + { + texturep->createGLTexture(0, raw); + } + texturep->setSubImage(raw, tex_x_begin, tex_y_begin, tex_x_end - tex_x_begin, tex_y_end - tex_y_begin); + + for (S32 i = 0; i < 4; i++) + { + // Un-boost detatil textures (will get re-boosted if rendering in high detail) + mDetailTextures[i]->setBoostLevel(LLGLTexture::BOOST_NONE); + mDetailTextures[i]->setMinDiscardLevel(MAX_DISCARD_LEVEL + 1); + } + + return TRUE; } LLUUID LLVLComposition::getDetailTextureID(S32 corner) { - return mDetailTextures[corner]->getID(); + return mDetailTextures[corner]->getID(); } LLViewerFetchedTexture* LLVLComposition::getDetailTexture(S32 corner) { - return mDetailTextures[corner]; + return mDetailTextures[corner]; } F32 LLVLComposition::getStartHeight(S32 corner) { - return mStartHeight[corner]; + return mStartHeight[corner]; } void LLVLComposition::setStartHeight(S32 corner, const F32 start_height) { - mStartHeight[corner] = start_height; + mStartHeight[corner] = start_height; } F32 LLVLComposition::getHeightRange(S32 corner) { - return mHeightRange[corner]; + return mHeightRange[corner]; } void LLVLComposition::setHeightRange(S32 corner, const F32 range) { - mHeightRange[corner] = range; + mHeightRange[corner] = range; } |