Add GLSL tests for loops with multiple induction variables

In particular, we want to test loops that have multiple induction
variables that are used to determine when the loop terminate.

5 files changed, 124 insertions, 0 deletions

diff --git a/tests/all.tests b/tests/all.tests
index cd4aac17..c865a5b8 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -285,6 +285,10 @@ add_shader_generic(shaders, 'glsl-fs-loop-gt')
 add_shader_generic(shaders, 'glsl-fs-loop-le')
 add_shader_generic(shaders, 'glsl-fs-loop-lt')
 add_plain_test(shaders, 'glsl-fs-loop-nested')
+add_shader_generic(shaders, 'glsl-fs-loop-two-counter-01')
+add_shader_generic(shaders, 'glsl-fs-loop-two-counter-02')
+add_shader_generic(shaders, 'glsl-fs-loop-two-counter-03')
+add_shader_generic(shaders, 'glsl-fs-loop-two-counter-04')
 add_shader_generic(shaders, 'glsl-fs-loop-zero-iter')
 add_shader_generic(shaders, 'glsl-fs-max')
 add_shader_generic(shaders, 'glsl-fs-min')
diff --git a/tests/shaders/glsl-fs-loop-two-counter-01.shader_test b/tests/shaders/glsl-fs-loop-two-counter-01.shader_test
new file mode 100644
index 00000000..f27f4eca
--- /dev/null
+++ b/tests/shaders/glsl-fs-loop-two-counter-01.shader_test
@@ -0,0 +1,30 @@
+[require]
+GL >= 2.0
+GLSL >= 1.10
+
+[vertex shader file]
+glsl-mvp.vert
+
+[fragment shader]
+void main()
+{
+  int j = 0;
+  float g = 0.0;
+
+  for (int i = 0; i < 10; i++) {
+    if (j > 2)
+      break;
+
+    g += 0.2;
+    j++;
+  }
+
+  gl_FragColor = (j != 3) ? vec4(1.0, 0.0, 0.0, 0.0) : vec4(0.0, g, 0.0, 0.0);
+}
+
+[test]
+clear color 0.3 0.3 0.3 0.0
+clear
+ortho
+draw rect 10 10 10 10
+probe rgb 15 15 0.0 0.6 0.0
diff --git a/tests/shaders/glsl-fs-loop-two-counter-02.shader_test b/tests/shaders/glsl-fs-loop-two-counter-02.shader_test
new file mode 100644
index 00000000..61c3bb7c
--- /dev/null
+++ b/tests/shaders/glsl-fs-loop-two-counter-02.shader_test
@@ -0,0 +1,30 @@
+[require]
+GL >= 2.0
+GLSL >= 1.10
+
+[vertex shader file]
+glsl-mvp.vert
+
+[fragment shader]
+void main()
+{
+  int j = 0;
+  float g = 0.0;
+
+  for (int i = 0; i < 10; i++) {
+    g += 0.2;
+    j++;
+
+    if (j > 2)
+      break;
+  }
+
+  gl_FragColor = (j != 3) ? vec4(1.0, 0.0, 0.0, 0.0) : vec4(0.0, g, 0.0, 0.0);
+}
+
+[test]
+clear color 0.3 0.3 0.3 0.0
+clear
+ortho
+draw rect 10 10 10 10
+probe rgb 15 15 0.0 0.6 0.0
diff --git a/tests/shaders/glsl-fs-loop-two-counter-03.shader_test b/tests/shaders/glsl-fs-loop-two-counter-03.shader_test
new file mode 100644
index 00000000..b4cd18fb
--- /dev/null
+++ b/tests/shaders/glsl-fs-loop-two-counter-03.shader_test
@@ -0,0 +1,30 @@
+[require]
+GL >= 2.0
+GLSL >= 1.10
+
+[vertex shader file]
+glsl-mvp.vert
+
+[fragment shader]
+void main()
+{
+  int j = 0;
+  float g = 0.0;
+
+  for (int i = 0; i < 3; i++) {
+    if (j > 9)
+      break;
+
+    g += 0.2;
+    j++;
+  }
+
+  gl_FragColor = (j != 3) ? vec4(1.0, 0.0, 0.0, 0.0) : vec4(0.0, g, 0.0, 0.0);
+}
+
+[test]
+clear color 0.3 0.3 0.3 0.0
+clear
+ortho
+draw rect 10 10 10 10
+probe rgb 15 15 0.0 0.6 0.0
diff --git a/tests/shaders/glsl-fs-loop-two-counter-04.shader_test b/tests/shaders/glsl-fs-loop-two-counter-04.shader_test
new file mode 100644
index 00000000..c015a1ad
--- /dev/null
+++ b/tests/shaders/glsl-fs-loop-two-counter-04.shader_test
@@ -0,0 +1,30 @@
+[require]
+GL >= 2.0
+GLSL >= 1.10
+
+[vertex shader file]
+glsl-mvp.vert
+
+[fragment shader]
+void main()
+{
+  int j = 0;
+  float g = 0.0;
+
+  for (int i = 0; i < 3; i++) {
+    g += 0.2;
+    j++;
+
+    if (j > 9)
+      break;
+  }
+
+  gl_FragColor = (j != 3) ? vec4(1.0, 0.0, 0.0, 0.0) : vec4(0.0, g, 0.0, 0.0);
+}
+
+[test]
+clear color 0.3 0.3 0.3 0.0
+clear
+ortho
+draw rect 10 10 10 10
+probe rgb 15 15 0.0 0.6 0.0