37 lines
865 B
C
37 lines
865 B
C
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#include "rgba.h"
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duk_ret_t compare_rgba(duk_context * ctx) {
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unsigned int color1 = get_color(ctx, 0);
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unsigned int color2 = get_color(ctx, 1);
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duk_push_boolean(ctx, color1 == color2);
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return 1;
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}
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duk_ret_t rgba(duk_context * ctx) {
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int r = duk_get_number(ctx, 0);
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int g = duk_get_number(ctx, 1);
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int b = duk_get_number(ctx, 2);
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int a = duk_get_number(ctx, 3);
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if (r > 255 || g > 255 || b > 255 || a > 255) {
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return duk_error(ctx, DUK_ERR_ERROR, "You can't use a number bigger then 255.");
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}
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unsigned char * buffer;
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buffer = duk_push_fixed_buffer(ctx, 4);
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buffer[0] = r;
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buffer[1] = g;
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buffer[2] = b;
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buffer[3] = a;
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return 1;
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}
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unsigned int get_color(duk_context * ctx, duk_idx_t index) {
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size_t rgba_size;
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unsigned char * rgba = duk_get_buffer(ctx, index, &rgba_size);
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return rgba[0] << 24 | rgba[1] << 16 | rgba[2] << 8 | rgba[3];
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}
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