glsl1: fix the texcoord varying test

Redeclare the gl_TexCoord[] array with a specific size, per the GLSL spec.
Note that the GLSL Orange book says that gl_TexCoord[] is declared with
gl_MaxTextureCoords size while the GLSL 1.x specs declare it unsized.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/glean/tglsl1.cpp b/src/glean/tglsl1.cpp
index 79844a8..5d46353 100644
--- a/src/glean/tglsl1.cpp
+++ b/src/glean/tglsl1.cpp
@@ -4047,12 +4047,14 @@ static const ShaderProgram Programs[] = {
 		// Does the linker correctly recognize that texcoord[1] is
 		// written by the vertex shader and read by the fragment shader?
 		// vert shader:
+		"varying vec4 gl_TexCoord[4]; \n"
 		"void main() { \n"
 		"   int i = 1; \n"
 		"   gl_TexCoord[i] = vec4(0.5, 0, 0, 0); \n"
 		"   gl_Position = ftransform(); \n"
 		"} \n",
 		// frag shader:
+		"varying vec4 gl_TexCoord[4]; \n"
 		"void main() { \n"
 		"   gl_FragColor = gl_TexCoord[1]; \n"
 		"} \n",