Fix some graphics issues with old drivers
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@ -87,6 +87,9 @@ void Graphics::init()
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if(m_maxTextureSize == -1 || m_maxTextureSize > maxTextureSize)
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if(m_maxTextureSize == -1 || m_maxTextureSize > maxTextureSize)
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m_maxTextureSize = maxTextureSize;
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m_maxTextureSize = maxTextureSize;
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if(Size(m_maxTextureSize,m_maxTextureSize) < g_window.getDisplaySize())
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m_cacheBackbuffer = false;
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m_alphaBits = 0;
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m_alphaBits = 0;
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glGetIntegerv(GL_ALPHA_BITS, &m_alphaBits);
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glGetIntegerv(GL_ALPHA_BITS, &m_alphaBits);
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@ -169,28 +172,40 @@ bool Graphics::isPainterEngineAvailable(Graphics::PainterEngine painterEngine)
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bool Graphics::selectPainterEngine(PainterEngine painterEngine)
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bool Graphics::selectPainterEngine(PainterEngine painterEngine)
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{
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{
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Painter *painter = nullptr;
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Painter *painter = nullptr;
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Painter *fallbackPainter = nullptr;
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#ifdef PAINTER_OGL2
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#ifdef PAINTER_OGL2
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// always prefer OpenGL 2 over OpenGL 1
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// always prefer OpenGL 2 over OpenGL 1
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if(!painter && g_painterOGL2 && (painterEngine == Painter_OpenGL2 || painterEngine == Painter_Any)) {
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if(g_painterOGL2) {
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if(!painter && (painterEngine == Painter_OpenGL2 || painterEngine == Painter_Any)) {
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m_selectedPainterEngine = Painter_OpenGL2;
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m_selectedPainterEngine = Painter_OpenGL2;
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painter = g_painterOGL2;
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painter = g_painterOGL2;
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}
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}
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fallbackPainter = g_painterOGL2;
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}
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#endif
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#endif
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#ifdef PAINTER_OGL1
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#ifdef PAINTER_OGL1
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// fallback to OpenGL 1 in older hardwares
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// fallback to OpenGL 1 in older hardwares
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if(!painter && g_painterOGL1 && (painterEngine == Painter_OpenGL1 || painterEngine == Painter_Any)) {
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if(g_painterOGL1) {
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if(!painter && (painterEngine == Painter_OpenGL1 || painterEngine == Painter_Any)) {
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m_selectedPainterEngine = Painter_OpenGL1;
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m_selectedPainterEngine = Painter_OpenGL1;
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painter = g_painterOGL1;
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painter = g_painterOGL1;
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}
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}
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fallbackPainter = g_painterOGL1;
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}
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#endif
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#endif
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if(!painter)
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painter = fallbackPainter;
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// switch painters GL state
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// switch painters GL state
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if(painter) {
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if(painter) {
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if(painter != g_painter) {
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if(g_painter)
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if(g_painter)
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g_painter->unbind();
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g_painter->unbind();
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painter->bind();
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painter->bind();
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g_painter = painter;
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g_painter = painter;
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}
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if(painterEngine == Painter_Any)
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if(painterEngine == Painter_Any)
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return true;
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return true;
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