Redacted
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55 lines
1.4 KiB
GLSL
55 lines
1.4 KiB
GLSL
#version 120
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// The color manually set with glColor4f, glColor4ubv etc.
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varying vec4 v_color;
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// The number of texture units that have been set.
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uniform int TEXTURE_UNIT_SET_COUNT;
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// True if we should perform the alpha mask operation.
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uniform bool ALPHA_MASK;
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// True if we're rendering text.
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uniform bool TEXT;
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// Texture unit 0 - 7 (8 - 31 will come later).
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uniform sampler2D GL_TEXTURE0;
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uniform sampler2D GL_TEXTURE1;
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uniform sampler2D GL_TEXTURE2;
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uniform sampler2D GL_TEXTURE3;
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uniform sampler2D GL_TEXTURE4;
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uniform sampler2D GL_TEXTURE5;
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uniform sampler2D GL_TEXTURE6;
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uniform sampler2D GL_TEXTURE7;
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// Texture coordinates.
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varying vec2 GL_TEXTURE0_COORD;
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varying vec2 GL_TEXTURE1_COORD;
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varying vec2 GL_TEXTURE2_COORD;
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varying vec2 GL_TEXTURE3_COORD;
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varying vec2 GL_TEXTURE4_COORD;
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varying vec2 GL_TEXTURE5_COORD;
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varying vec2 GL_TEXTURE6_COORD;
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varying vec2 GL_TEXTURE7_COORD;
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void DrawColorOnly() {
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gl_FragColor = v_color;
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}
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// TODO fix positive alpha mask.
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void SampleTextureUnits() {
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if (TEXT)
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gl_FragColor = vec4(v_color.rgb, v_color.a * texture2D(GL_TEXTURE0, GL_TEXTURE0_COORD).a);
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// Draw sprite, partial sprite, mirror sprite, render target, partial render target.
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else if (TEXTURE_UNIT_SET_COUNT == 1)
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gl_FragColor = v_color * texture2D(GL_TEXTURE0, GL_TEXTURE0_COORD);
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}
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void main() {
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if (TEXTURE_UNIT_SET_COUNT == 0) {
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DrawColorOnly(); return;
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}
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SampleTextureUnits();
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} |