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Add support for some base driver features, e.g. texture lod, blendFunc, polygon offset.

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git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/branches/ogl-es@3795 dfc29bdd-3216-0410-991c-e03cc46cb475
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hybrid 2011-06-05 21:50:36 +00:00
parent 44b271aedf
commit 7acc7ab127
1 changed files with 88 additions and 1 deletions
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89
source/Irrlicht/COGLES2Driver.cpp
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@ -1640,6 +1640,18 @@ namespace video
//Thibault : strange Blue artifact on textures in exemple 02
glActiveTexture(GL_TEXTURE0 + i);
#ifdef GL_EXT_texture_lod_bias
if (FeatureAvailable[IRR_EXT_texture_lod_bias])
{
if (material.TextureLayer[i].LODBias)
{
const float tmp = core::clamp(material.TextureLayer[i].LODBias * 0.125f, -MaxTextureLODBias, MaxTextureLODBias);
glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, tmp);
}
else
glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, 0.f);
}
#endif
if (material.TextureLayer[i].BilinearFilter || material.TextureLayer[i].TrilinearFilter)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
@ -1649,7 +1661,7 @@ namespace video
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
}
if (material.getTexture(i) && material.getTexture(i)->hasMipMaps())
if (material.getTexture(i) && CurrentTexture[i]->hasMipMaps())
{
if (material.TextureLayer[i].TrilinearFilter)
{
@ -1782,6 +1794,81 @@ namespace video
}
testGLError();
if (resetAllRenderStates|| lastmaterial.BlendOperation != material.BlendOperation)
{
if (EBO_NONE)
glDisable(GL_BLEND);
else
{
glEnable(GL_BLEND);
switch (material.BlendOperation)
{
case EBO_SUBTRACT:
glBlendEquation(GL_FUNC_SUBTRACT);
break;
case EBO_REVSUBTRACT:
glBlendEquation(GL_FUNC_REVERSE_SUBTRACT);
break;
case EBO_MIN:
#if defined(GL_EXT_blend_minmax)
if (FeatureAvailable[IRR_EXT_blend_minmax])
glBlendEquation(GL_MIN_EXT);
#endif
break;
case EBO_MAX:
#if defined(GL_EXT_blend_minmax)
if (FeatureAvailable[IRR_EXT_blend_minmax])
glBlendEquation(GL_MAX_EXT);
#endif
break;
case EBO_MIN_FACTOR:
// fallback in case of missing extension
#if defined(GL_EXT_blend_minmax)
if (FeatureAvailable[IRR_EXT_blend_minmax])
glBlendEquation(GL_MIN_EXT);
#endif
break;
case EBO_MAX_FACTOR:
// fallback in case of missing extension
#if defined(GL_EXT_blend_minmax)
if (FeatureAvailable[IRR_EXT_blend_minmax])
glBlendEquation(GL_MAX_EXT);
#endif
break;
case EBO_MIN_ALPHA:
#if defined(GL_EXT_blend_minmax)
if (FeatureAvailable[IRR_EXT_blend_minmax])
glBlendEquation(GL_MIN_EXT);
#endif
break;
case EBO_MAX_ALPHA:
#if defined(GL_EXT_blend_minmax)
if (FeatureAvailable[IRR_EXT_blend_minmax])
glBlendEquation(GL_MAX_EXT);
#endif
break;
default:
glBlendEquation(GL_FUNC_ADD);
break;
}
}
}
// Polygon Offset
if (queryFeature(EVDF_POLYGON_OFFSET) && (resetAllRenderStates ||
lastmaterial.PolygonOffsetDirection != material.PolygonOffsetDirection ||
lastmaterial.PolygonOffsetFactor != material.PolygonOffsetFactor))
{
if (material.PolygonOffsetFactor)
glEnable(GL_POLYGON_OFFSET_FILL);
else
glDisable(GL_POLYGON_OFFSET_FILL);
if (material.PolygonOffsetDirection==EPO_BACK)
glPolygonOffset(1.0f, (GLfloat)material.PolygonOffsetFactor);
else
glPolygonOffset(-1.0f, (GLfloat)-material.PolygonOffsetFactor);
}
// thickness
if (resetAllRenderStates || lastmaterial.Thickness != material.Thickness)
{