[Piglit] [PATCH 11/11] shader_runner: Allow loading hex values for floats

[Ian Romanick]

From: Ian Romanick <ian.d.romanick at intel.com>

For some cases we want to have shaders where we load an exact bit
pattern into a float (or double) uniform.

NOTE: The double path isn't really tested.

Signed-off-by: Ian Romanick <ian.d.romanick at intel.com>
---
 tests/shaders/shader_runner.c | 34 ++++++++++++++++++++++++++++++----
 1 file changed, 30 insertions(+), 4 deletions(-)

diff --git a/tests/shaders/shader_runner.c b/tests/shaders/shader_runner.c
index 310b2d4..1f93216 100644
--- a/tests/shaders/shader_runner.c
+++ b/tests/shaders/shader_runner.c
@@ -1175,8 +1175,21 @@ get_floats(const char *line, float *f, unsigned count)
 {
 	unsigned i;
 
-	for (i = 0; i < count; i++)
-		f[i] = strtod_inf(line, (char **) &line);
+	for (i = 0; i < count; i++) {
+		line = eat_whitespace(line);
+
+		if (strncmp(line, "0x", 2) == 0) {
+			union {
+				int32_t i;
+				float f;
+			} x;
+
+			x.i = strtol(line, (char **) &line, 16);
+			f[i] = x.f;
+		} else {
+			f[i] = strtod_inf(line, (char **) &line);
+		}
+	}
 }
 
 void
@@ -1184,8 +1197,21 @@ get_doubles(const char *line, double *d, unsigned count)
 {
 	unsigned i;
 
-	for (i = 0; i < count; i++)
-		d[i] = strtod_inf(line, (char **) &line);
+	for (i = 0; i < count; i++) {
+		line = eat_whitespace(line);
+
+		if (strncmp(line, "0x", 2) == 0) {
+			union {
+				int64_t i64;
+				double d;
+			} x;
+
+			x.i64 = strtoll(line, (char **) &line, 16);
+			d[i] = x.d;
+		} else {
+			d[i] = strtod_inf(line, (char **) &line);
+		}
+	}
 }
 
 
-- 
1.8.1.4