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gl: Declare coverage input for fragment shaders.

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The most minor of oversights which prevented compilation of any spans
based compositors.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-10-08 05:57:49 +01:00
parent d825f6a263
commit 22c485017d
1 changed files with 4 additions and 2 deletions
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6
src/cairo-gl-shaders.c
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@ -866,8 +866,10 @@ cairo_gl_shader_get_fragment_source (cairo_gl_context_t *ctx,
cairo_gl_shader_emit_color (stream, ctx, mask, CAIRO_GL_TEX_MASK);
coverage_str = "";
if (use_coverage)
coverage_str = " * coverage.a";
if (use_coverage) {
_cairo_output_stream_printf (stream, "varying float coverage;\n");
coverage_str = " * coverage";
}
_cairo_output_stream_printf (stream,
"void main()\n"