summaryrefslogtreecommitdiff
path: root/indra/llrender/llfontbitmapcache.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'indra/llrender/llfontbitmapcache.cpp')
-rw-r--r--indra/llrender/llfontbitmapcache.cpp372
1 files changed, 186 insertions, 186 deletions
diff --git a/indra/llrender/llfontbitmapcache.cpp b/indra/llrender/llfontbitmapcache.cpp
index 1c67e3fb14..19ff9dc047 100644
--- a/indra/llrender/llfontbitmapcache.cpp
+++ b/indra/llrender/llfontbitmapcache.cpp
@@ -1,186 +1,186 @@
-/**
- * @file llfontbitmapcache.cpp
- * @brief Storage for previously rendered glyphs.
- *
- * $LicenseInfo:firstyear=2008&license=viewerlgpl$
- * 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
- * $/LicenseInfo$
- */
-
-#include "linden_common.h"
-
-#include "llgl.h"
-#include "llfontbitmapcache.h"
-
-LLFontBitmapCache::LLFontBitmapCache()
-
-{
-}
-
-LLFontBitmapCache::~LLFontBitmapCache()
-{
-}
-
-void LLFontBitmapCache::init(S32 max_char_width,
- S32 max_char_height)
-{
- reset();
-
- mMaxCharWidth = max_char_width;
- mMaxCharHeight = max_char_height;
-
- S32 image_width = mMaxCharWidth * 20;
- S32 pow_iw = 2;
- while (pow_iw < image_width)
- {
- pow_iw <<= 1;
- }
- image_width = pow_iw;
- image_width = llmin(512, image_width); // Don't make bigger than 512x512, ever.
-
- mBitmapWidth = image_width;
- mBitmapHeight = image_width;
-}
-
-LLImageRaw *LLFontBitmapCache::getImageRaw(EFontGlyphType bitmap_type, U32 bitmap_num) const
-{
- const U32 bitmap_idx = static_cast<U32>(bitmap_type);
- if (bitmap_type >= EFontGlyphType::Count || bitmap_num >= mImageRawVec[bitmap_idx].size())
- return nullptr;
-
- return mImageRawVec[bitmap_idx][bitmap_num];
-}
-
-LLImageGL *LLFontBitmapCache::getImageGL(EFontGlyphType bitmap_type, U32 bitmap_num) const
-{
- const U32 bitmap_idx = static_cast<U32>(bitmap_type);
- if (bitmap_type >= EFontGlyphType::Count || bitmap_num >= mImageGLVec[bitmap_idx].size())
- return nullptr;
-
- return mImageGLVec[bitmap_idx][bitmap_num];
-}
-
-
-bool LLFontBitmapCache::nextOpenPos(S32 width, S32& pos_x, S32& pos_y, EFontGlyphType bitmap_type, U32& bitmap_num)
-{
- if (bitmap_type >= EFontGlyphType::Count)
- {
- return false;
- }
-
- const U32 bitmap_idx = static_cast<U32>(bitmap_type);
- if (mImageRawVec[bitmap_idx].empty() || (mCurrentOffsetX[bitmap_idx] + width + 1) > mBitmapWidth)
- {
- if ((mImageRawVec[bitmap_idx].empty()) || (mCurrentOffsetY[bitmap_idx] + 2*mMaxCharHeight + 2) > mBitmapHeight)
- {
- // We're out of space in the current image, or no image
- // has been allocated yet. Make a new one.
-
- S32 image_width = mMaxCharWidth * 20;
- S32 pow_iw = 2;
- while (pow_iw < image_width)
- {
- pow_iw *= 2;
- }
- image_width = pow_iw;
- image_width = llmin(512, image_width); // Don't make bigger than 512x512, ever.
- S32 image_height = image_width;
-
- mBitmapWidth = image_width;
- mBitmapHeight = image_height;
-
- S32 num_components = getNumComponents(bitmap_type);
- mImageRawVec[bitmap_idx].push_back(new LLImageRaw(mBitmapWidth, mBitmapHeight, num_components));
- bitmap_num = mImageRawVec[bitmap_idx].size() - 1;
-
- LLImageRaw* image_raw = getImageRaw(bitmap_type, bitmap_num);
- if (EFontGlyphType::Grayscale == bitmap_type)
- {
- image_raw->clear(255, 0);
- }
-
- // Make corresponding GL image.
- mImageGLVec[bitmap_idx].push_back(new LLImageGL(image_raw, false));
- LLImageGL* image_gl = getImageGL(bitmap_type, bitmap_num);
-
- // Start at beginning of the new image.
- mCurrentOffsetX[bitmap_idx] = 1;
- mCurrentOffsetY[bitmap_idx] = 1;
-
- // Attach corresponding GL texture. (*TODO: is this needed?)
- gGL.getTexUnit(0)->bind(image_gl);
- image_gl->setFilteringOption(LLTexUnit::TFO_POINT); // was setMipFilterNearest(true, true);
- }
- else
- {
- // Move to next row in current image.
- mCurrentOffsetX[bitmap_idx] = 1;
- mCurrentOffsetY[bitmap_idx] += mMaxCharHeight + 1;
- }
- }
-
- pos_x = mCurrentOffsetX[bitmap_idx];
- pos_y = mCurrentOffsetY[bitmap_idx];
- bitmap_num = getNumBitmaps(bitmap_type) - 1;
-
- mCurrentOffsetX[bitmap_idx] += width + 1;
-
- return true;
-}
-
-void LLFontBitmapCache::destroyGL()
-{
- for (U32 idx = 0, cnt = static_cast<U32>(EFontGlyphType::Count); idx < cnt; idx++)
- {
- for (LLImageGL* image_gl : mImageGLVec[idx])
- {
- image_gl->destroyGLTexture();
- }
- }
-}
-
-void LLFontBitmapCache::reset()
-{
- for (U32 idx = 0, cnt = static_cast<U32>(EFontGlyphType::Count); idx < cnt; idx++)
- {
- mImageRawVec[idx].clear();
- mImageGLVec[idx].clear();
- mCurrentOffsetX[idx] = 1;
- mCurrentOffsetY[idx] = 1;
- }
-
- mBitmapWidth = 0;
- mBitmapHeight = 0;
-}
-
-//static
-U32 LLFontBitmapCache::getNumComponents(EFontGlyphType bitmap_type)
-{
- switch (bitmap_type)
- {
- case EFontGlyphType::Grayscale:
- return 2;
- case EFontGlyphType::Color:
- return 4;
- default:
- llassert(false);
- return 2;
- }
-}
+/**
+ * @file llfontbitmapcache.cpp
+ * @brief Storage for previously rendered glyphs.
+ *
+ * $LicenseInfo:firstyear=2008&license=viewerlgpl$
+ * 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
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+
+#include "llgl.h"
+#include "llfontbitmapcache.h"
+
+LLFontBitmapCache::LLFontBitmapCache()
+
+{
+}
+
+LLFontBitmapCache::~LLFontBitmapCache()
+{
+}
+
+void LLFontBitmapCache::init(S32 max_char_width,
+ S32 max_char_height)
+{
+ reset();
+
+ mMaxCharWidth = max_char_width;
+ mMaxCharHeight = max_char_height;
+
+ S32 image_width = mMaxCharWidth * 20;
+ S32 pow_iw = 2;
+ while (pow_iw < image_width)
+ {
+ pow_iw <<= 1;
+ }
+ image_width = pow_iw;
+ image_width = llmin(512, image_width); // Don't make bigger than 512x512, ever.
+
+ mBitmapWidth = image_width;
+ mBitmapHeight = image_width;
+}
+
+LLImageRaw *LLFontBitmapCache::getImageRaw(EFontGlyphType bitmap_type, U32 bitmap_num) const
+{
+ const U32 bitmap_idx = static_cast<U32>(bitmap_type);
+ if (bitmap_type >= EFontGlyphType::Count || bitmap_num >= mImageRawVec[bitmap_idx].size())
+ return nullptr;
+
+ return mImageRawVec[bitmap_idx][bitmap_num];
+}
+
+LLImageGL *LLFontBitmapCache::getImageGL(EFontGlyphType bitmap_type, U32 bitmap_num) const
+{
+ const U32 bitmap_idx = static_cast<U32>(bitmap_type);
+ if (bitmap_type >= EFontGlyphType::Count || bitmap_num >= mImageGLVec[bitmap_idx].size())
+ return nullptr;
+
+ return mImageGLVec[bitmap_idx][bitmap_num];
+}
+
+
+bool LLFontBitmapCache::nextOpenPos(S32 width, S32& pos_x, S32& pos_y, EFontGlyphType bitmap_type, U32& bitmap_num)
+{
+ if (bitmap_type >= EFontGlyphType::Count)
+ {
+ return false;
+ }
+
+ const U32 bitmap_idx = static_cast<U32>(bitmap_type);
+ if (mImageRawVec[bitmap_idx].empty() || (mCurrentOffsetX[bitmap_idx] + width + 1) > mBitmapWidth)
+ {
+ if ((mImageRawVec[bitmap_idx].empty()) || (mCurrentOffsetY[bitmap_idx] + 2*mMaxCharHeight + 2) > mBitmapHeight)
+ {
+ // We're out of space in the current image, or no image
+ // has been allocated yet. Make a new one.
+
+ S32 image_width = mMaxCharWidth * 20;
+ S32 pow_iw = 2;
+ while (pow_iw < image_width)
+ {
+ pow_iw *= 2;
+ }
+ image_width = pow_iw;
+ image_width = llmin(512, image_width); // Don't make bigger than 512x512, ever.
+ S32 image_height = image_width;
+
+ mBitmapWidth = image_width;
+ mBitmapHeight = image_height;
+
+ S32 num_components = getNumComponents(bitmap_type);
+ mImageRawVec[bitmap_idx].push_back(new LLImageRaw(mBitmapWidth, mBitmapHeight, num_components));
+ bitmap_num = mImageRawVec[bitmap_idx].size() - 1;
+
+ LLImageRaw* image_raw = getImageRaw(bitmap_type, bitmap_num);
+ if (EFontGlyphType::Grayscale == bitmap_type)
+ {
+ image_raw->clear(255, 0);
+ }
+
+ // Make corresponding GL image.
+ mImageGLVec[bitmap_idx].push_back(new LLImageGL(image_raw, false));
+ LLImageGL* image_gl = getImageGL(bitmap_type, bitmap_num);
+
+ // Start at beginning of the new image.
+ mCurrentOffsetX[bitmap_idx] = 1;
+ mCurrentOffsetY[bitmap_idx] = 1;
+
+ // Attach corresponding GL texture. (*TODO: is this needed?)
+ gGL.getTexUnit(0)->bind(image_gl);
+ image_gl->setFilteringOption(LLTexUnit::TFO_POINT); // was setMipFilterNearest(true, true);
+ }
+ else
+ {
+ // Move to next row in current image.
+ mCurrentOffsetX[bitmap_idx] = 1;
+ mCurrentOffsetY[bitmap_idx] += mMaxCharHeight + 1;
+ }
+ }
+
+ pos_x = mCurrentOffsetX[bitmap_idx];
+ pos_y = mCurrentOffsetY[bitmap_idx];
+ bitmap_num = getNumBitmaps(bitmap_type) - 1;
+
+ mCurrentOffsetX[bitmap_idx] += width + 1;
+
+ return true;
+}
+
+void LLFontBitmapCache::destroyGL()
+{
+ for (U32 idx = 0, cnt = static_cast<U32>(EFontGlyphType::Count); idx < cnt; idx++)
+ {
+ for (LLImageGL* image_gl : mImageGLVec[idx])
+ {
+ image_gl->destroyGLTexture();
+ }
+ }
+}
+
+void LLFontBitmapCache::reset()
+{
+ for (U32 idx = 0, cnt = static_cast<U32>(EFontGlyphType::Count); idx < cnt; idx++)
+ {
+ mImageRawVec[idx].clear();
+ mImageGLVec[idx].clear();
+ mCurrentOffsetX[idx] = 1;
+ mCurrentOffsetY[idx] = 1;
+ }
+
+ mBitmapWidth = 0;
+ mBitmapHeight = 0;
+}
+
+//static
+U32 LLFontBitmapCache::getNumComponents(EFontGlyphType bitmap_type)
+{
+ switch (bitmap_type)
+ {
+ case EFontGlyphType::Grayscale:
+ return 2;
+ case EFontGlyphType::Color:
+ return 4;
+ default:
+ llassert(false);
+ return 2;
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 03:50:34 +0000