diff options
| -rw-r--r-- | src/gui/painting/qtextureglyphcache.cpp | 20 | ||||
| -rw-r--r-- | src/gui/painting/qtextureglyphcache_p.h | 6 | ||||
| -rw-r--r-- | src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp | 11 | ||||
| -rw-r--r-- | src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h | 2 |
4 files changed, 30 insertions, 9 deletions
diff --git a/src/gui/painting/qtextureglyphcache.cpp b/src/gui/painting/qtextureglyphcache.cpp index 631a9cf..b609f7b 100644 --- a/src/gui/painting/qtextureglyphcache.cpp +++ b/src/gui/painting/qtextureglyphcache.cpp @@ -47,10 +47,6 @@ #include "private/qnativeimage_p.h" #include "private/qfontengine_ft_p.h" -#ifndef QT_DEFAULT_TEXTURE_GLYPH_CACHE_WIDTH -#define QT_DEFAULT_TEXTURE_GLYPH_CACHE_WIDTH 256 -#endif - QT_BEGIN_NAMESPACE // #define CACHE_DEBUG @@ -137,10 +133,18 @@ void QTextureGlyphCache::populate(QFontEngine *fontEngine, int numGlyphs, const m_currentRowHeight = qMax(m_currentRowHeight, c.h + margin * 2); if (m_cx + c.w > m_w) { - // no room on the current line, start new glyph strip - m_cx = 0; - m_cy += m_currentRowHeight + paddingDoubled; - m_currentRowHeight = 0; // New row + int new_width = m_w*2; + while (new_width < m_cx + c.w) + new_width *= 2; + if (new_width <= maxTextureWidth()) { + resizeTextureData(new_width, m_h); + m_w = new_width; + } else { + // no room on the current line, start new glyph strip + m_cx = 0; + m_cy += m_currentRowHeight + paddingDoubled; + m_currentRowHeight = 0; // New row + } } if (m_cy + c.h > m_h) { int new_height = m_h*2; diff --git a/src/gui/painting/qtextureglyphcache_p.h b/src/gui/painting/qtextureglyphcache_p.h index a818978..e6d2b22 100644 --- a/src/gui/painting/qtextureglyphcache_p.h +++ b/src/gui/painting/qtextureglyphcache_p.h @@ -64,6 +64,10 @@ # undef m_type #endif +#ifndef QT_DEFAULT_TEXTURE_GLYPH_CACHE_WIDTH +#define QT_DEFAULT_TEXTURE_GLYPH_CACHE_WIDTH 256 +#endif + struct glyph_metrics_t; typedef unsigned int glyph_t; @@ -113,6 +117,8 @@ public: QHash<glyph_t, Coord> coords; QImage textureMapForGlyph(glyph_t g) const; + virtual int maxTextureWidth() const { return QT_DEFAULT_TEXTURE_GLYPH_CACHE_WIDTH; } + virtual int maxTextureHeight() const { return 32768; } protected: QFontEngine *m_current_fontengine; diff --git a/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp b/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp index 410cf21..f353995 100644 --- a/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp +++ b/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp @@ -129,7 +129,7 @@ void QGLTextureGlyphCache::resizeTextureData(int width, int height) GLuint oldTexture = m_texture; createTextureData(width, height); - + if (ctx->d_ptr->workaround_brokenFBOReadBack) { QImageTextureGlyphCache::resizeTextureData(width, height); Q_ASSERT(image().depth() == 8); @@ -281,4 +281,13 @@ int QGLTextureGlyphCache::glyphPadding() const return 1; } +int QGLTextureGlyphCache::maxTextureWidth() const +{ + return ctx->d_ptr->maxTextureSize(); +} + +int QGLTextureGlyphCache::maxTextureHeight() const +{ + return ctx->d_ptr->maxTextureSize(); +} QT_END_NAMESPACE diff --git a/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h b/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h index 6bcd655..eb3693c 100644 --- a/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h +++ b/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h @@ -73,6 +73,8 @@ public: virtual void resizeTextureData(int width, int height); virtual void fillTexture(const Coord &c, glyph_t glyph); virtual int glyphPadding() const; + virtual int maxTextureWidth() const; + virtual int maxTextureHeight() const; inline GLuint texture() const { return m_texture; } |