37 lines
824 B
GLSL
37 lines
824 B
GLSL
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/* enum wlr_gles2_shader_source */
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#define SOURCE_TEXTURE_RGBA 1
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#define SOURCE_TEXTURE_RGBX 2
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#define SOURCE_TEXTURE_EXTERNAL 3
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#if !defined(SOURCE)
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#error "Missing shader preamble"
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#endif
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#if SOURCE == SOURCE_TEXTURE_EXTERNAL
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#extension GL_OES_EGL_image_external : require
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#endif
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precision mediump float;
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varying vec2 v_texcoord;
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#if SOURCE == SOURCE_TEXTURE_EXTERNAL
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uniform samplerExternalOES tex;
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#elif SOURCE == SOURCE_TEXTURE_RGBA || SOURCE == SOURCE_TEXTURE_RGBX
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uniform sampler2D tex;
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#endif
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uniform float alpha;
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vec4 sample_texture() {
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#if SOURCE == SOURCE_TEXTURE_RGBA || SOURCE == SOURCE_TEXTURE_EXTERNAL
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return texture2D(tex, v_texcoord);
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#elif SOURCE == SOURCE_TEXTURE_RGBX
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return vec4(texture2D(tex, v_texcoord).rgb, 1.0);
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#endif
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}
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void main() {
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gl_FragColor = sample_texture() * alpha;
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}
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