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Fix 3point filtering on the Raspberry Pi
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@ -311,7 +311,15 @@ static const char* fragment_shader_readtex_3point =
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"#define TEX_OFFSET(off) texture2D(tex, texCoord - (off)/texSize) \n"
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"#define TEX_OFFSET(off) texture2D(tex, texCoord - (off)/texSize) \n"
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"lowp vec4 filter3point(in sampler2D tex, in mediump vec2 texCoord) \n"
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"lowp vec4 filter3point(in sampler2D tex, in mediump vec2 texCoord) \n"
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"{ \n"
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"{ \n"
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#ifndef VC
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" mediump vec2 texSize = uTextureSize[nCurrentTile]; \n"
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" mediump vec2 texSize = uTextureSize[nCurrentTile]; \n"
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#else
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" mediump vec2 texSize; \n"
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" if (nCurrentTile == 0) \n"
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" texSize = uTextureSize[0]; \n"
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" else if (nCurrentTile == 1) \n"
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" texSize = uTextureSize[1]; \n"
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#endif
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" mediump vec2 offset = fract(texCoord*texSize - vec2(0.5)); \n"
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" mediump vec2 offset = fract(texCoord*texSize - vec2(0.5)); \n"
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" offset -= step(1.0, offset.x + offset.y); \n"
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" offset -= step(1.0, offset.x + offset.y); \n"
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" lowp vec4 c0 = TEX_OFFSET(offset); \n"
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" lowp vec4 c0 = TEX_OFFSET(offset); \n"
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