gl2shim: make shaders code more portable
This commit is contained in:
mittorn
Alibek Omarov
parent
cf65a39b83
commit
96127c6eb0
2 changed files with 118 additions and 125 deletions
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@ -1,69 +1,65 @@
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R"(
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"#if VER <= 300\n"
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"#define layout(x)\n"
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"#endif\n"
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#if VER <= 300
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"#if VER < 300\n"
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#define layout(x)
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"#define out attribute\n"
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#endif
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"#define in varying\n"
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#if VER < 300
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"#define texture texture2D\n"
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#define out attribute
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"#endif\n"
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#define in varying
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"#if VER >= 130\n"
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#define texture texture2D
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"precision mediump float;\n"
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#endif
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"#endif\n"
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#if VER >= 130
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"#if ATTR_TEXCOORD0\n"
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precision mediump float;
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"uniform sampler2D uTex0;\n"
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#endif
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"#endif\n"
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#if ATTR_TEXCOORD0
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"#if ATTR_TEXCOORD1\n"
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uniform sampler2D uTex0;
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"uniform sampler2D uTex1;\n"
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#endif
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"#endif\n"
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#if ATTR_TEXCOORD1
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"#if FEAT_ALPHA_TEST\n"
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uniform sampler2D uTex1;
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"uniform float uAlphaTest;\n"
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#endif
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"#endif\n"
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#if FEAT_ALPHA_TEST
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"#if FEAT_FOG\n"
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uniform float uAlphaTest;
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"uniform vec4 uFog;\n"
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#endif
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"#endif\n"
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#if FEAT_FOG
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"uniform vec4 uColor;\n"
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uniform vec4 uFog;
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"#if ATTR_COLOR\n"
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#endif
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"in vec4 vColor;\n"
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uniform vec4 uColor;
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"#endif\n"
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#if ATTR_COLOR
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"#if ATTR_TEXCOORD0\n"
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in vec4 vColor;
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"in vec2 vTexCoord0;\n"
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#endif
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"#endif\n"
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#if ATTR_TEXCOORD0
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"#if ATTR_TEXCOORD1\n"
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in vec2 vTexCoord0;
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"in vec2 vTexCoord1;\n"
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#endif
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"#endif\n"
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#if ATTR_TEXCOORD1
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"#if ATTR_NORMAL\n"
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in vec2 vTexCoord1;
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"in vec2 vNormal;\n"
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#endif
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"#endif\n"
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#if ATTR_NORMAL
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"#if VER >= 300\n"
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in vec2 vNormal;
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"out vec4 oFragColor;\n"
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#endif
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"#else\n"
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#if VER >= 300
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"#define oFragColor gl_FragColor\n"
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out vec4 oFragColor;
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"#endif\n"
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#else
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"void main()\n"
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#define oFragColor gl_FragColor
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"{\n"
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#endif
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"#if ATTR_COLOR\n"
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void main()
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"vec4 c = vColor;\n"
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{
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"#else\n"
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#if ATTR_COLOR
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"vec4 c = uColor;\n"
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vec4 c = vColor;
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"#endif\n"
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#else
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"#if ATTR_TEXCOORD0\n"
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vec4 c = uColor;
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"c = c * texture(uTex0, vTexCoord0);\n"
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#endif
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"#endif\n"
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#if ATTR_TEXCOORD0
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"#if ATTR_TEXCOORD1\n"
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c = c * texture(uTex0, vTexCoord0);
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"c = c * texture(uTex1, vTexCoord1);\n"
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#endif
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"#endif\n"
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#if ATTR_TEXCOORD1
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"#if FEAT_ALPHA_TEST\n"
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c = c * texture(uTex1, vTexCoord1);
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"if(c.a <= uAlphaTest)\n"
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#endif
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"discard;\n"
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#if FEAT_ALPHA_TEST
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"#endif\n"
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if(c.a <= uAlphaTest)
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"#if FEAT_FOG\n"
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discard;
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"float fogDist = gl_FragCoord.z / gl_FragCoord.w;\n"
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#endif
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"float fogRate = clamp(exp(-uFog.w * fogDist), 0.f, 1.f);\n"
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#if FEAT_FOG
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"c.rgb = mix(uFog.rgb, c.rgb, fogRate);\n"
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float fogDist = gl_FragCoord.z / gl_FragCoord.w;
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"#endif\n"
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float fogRate = clamp(exp(-uFog.w * fogDist), 0.f, 1.f);
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"oFragColor = c;\n"
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c.rgb = mix(uFog.rgb, c.rgb, fogRate);
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"}\n"
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#endif
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oFragColor = c;
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}
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)"
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@ -1,56 +1,53 @@
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R"(
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"#if VER <= 300\n"
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"#define layout(x)\n"
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#if VER <= 300
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"#endif\n"
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#define layout(x)
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"#if VER < 300\n"
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#endif
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"#define in attribute\n"
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#if VER < 300
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"#define out varying\n"
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#define in attribute
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"#endif\n"
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#define out varying
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"\n"
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#endif
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"layout(location = LOC_ATTR_POSITION) in vec3 inPosition;\n"
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"#if ATTR_COLOR\n"
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layout(location = LOC_ATTR_POSITION) in vec3 inPosition;
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"layout(location = LOC_ATTR_COLOR) in vec4 inColor;\n"
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#if ATTR_COLOR
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"#endif\n"
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layout(location = LOC_ATTR_COLOR) in vec4 inColor;
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"#if ATTR_TEXCOORD0\n"
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#endif
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"layout(location = LOC_ATTR_TEXCOORD0) in vec2 inTexCoord0;\n"
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#if ATTR_TEXCOORD0
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"#endif\n"
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layout(location = LOC_ATTR_TEXCOORD0) in vec2 inTexCoord0;
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"#if ATTR_TEXCOORD1\n"
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#endif
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"layout(location = LOC_ATTR_TEXCOORD1) in vec2 inTexCoord1;\n"
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#if ATTR_TEXCOORD1
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"#endif\n"
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layout(location = LOC_ATTR_TEXCOORD1) in vec2 inTexCoord1;
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"\n"
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#endif
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"#if ATTR_NORMAL\n"
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"in vec3 inNormal;\n"
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#if ATTR_NORMAL
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"#endif\n"
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in vec3 inNormal;
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"#if ATTR_COLOR\n"
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#endif
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"out vec4 vColor;\n"
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#if ATTR_COLOR
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"#endif\n"
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out vec4 vColor;
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"#if ATTR_TEXCOORD0\n"
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#endif
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"out vec2 vTexCoord0;\n"
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#if ATTR_TEXCOORD0
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"#endif\n"
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out vec2 vTexCoord0;
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"#if ATTR_TEXCOORD1\n"
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#endif
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"out vec2 vTexCoord1;\n"
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#if ATTR_TEXCOORD1
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"#endif\n"
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out vec2 vTexCoord1;
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"#if ATTR_NORMAL\n"
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#endif
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"out vec3 vNormal;\n"
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#if ATTR_NORMAL
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"#endif\n"
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out vec3 vNormal;
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"\n"
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#endif
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"uniform mat4 uMVP;\n"
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"\n"
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uniform mat4 uMVP;
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"void main()\n"
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"{\n"
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void main()
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"gl_Position = uMVP * vec4(inPosition,1.0f);\n"
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{
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"#if ATTR_COLOR\n"
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gl_Position = uMVP * vec4(inPosition,1.0f);
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"vColor = inColor;\n"
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#if ATTR_COLOR
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"#endif\n"
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vColor = inColor;
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"#if ATTR_NORMAL\n"
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#endif
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"vNormal = inNormal;\n"
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#if ATTR_NORMAL
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"#endif\n"
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vNormal = inNormal;
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"#if ATTR_TEXCOORD0\n"
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#endif
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"vTexCoord0 = inTexCoord0;\n"
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#if ATTR_TEXCOORD0
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"#endif\n"
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vTexCoord0 = inTexCoord0;
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"#if ATTR_TEXCOORD1\n"
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#endif
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"vTexCoord1 = inTexCoord1;\n"
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#if ATTR_TEXCOORD1
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"#endif\n"
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vTexCoord1 = inTexCoord1;
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"}\n"
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#endif
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}
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)"
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