wined3d: Bump ps_1x_max_value.

Shader model 4 hardware should generally have real floats for everything, and FLT_MAX matches the value from the Windows drivers for that kind of hardware. OpenGL requires at least 2^10 for colors, and 2^32 for other floats.

wined3d: Bump ps_1x_max_value.
14e3f71c · Henri Verbeet · Alexandre Julliard · 56019a4d · 14e3f71c
Commit 14e3f71c authored May 02, 2014 by Henri Verbeet Committed by Alexandre Julliard May 02, 2014
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glsl_shader.c dlls/wined3d/glsl_shader.c +7 -1

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--- a/dlls/wined3d/glsl_shader.c
+++ b/dlls/wined3d/glsl_shader.c
@@ -34,6 +34,9 @@

 #include <limits.h>
 #include <stdio.h>
+#ifdef HAVE_FLOAT_H
+# include <float.h>
+#endif

 #include "wined3d_private.h"

@@ -6590,7 +6593,10 @@ static void shader_glsl_get_caps(const struct wined3d_gl_info *gl_info, struct s
     * the shader will generate incorrect results too. Unfortunately, GL deliberately doesn't
     * offer a way to query this.
     */
-    caps->ps_1x_max_value = 8.0;
+    if (shader_model >= 4)
+        caps->ps_1x_max_value = FLT_MAX;
+    else
+        caps->ps_1x_max_value = 1024.0f;

    /* Ideally we'd only set caps like sRGB writes here if supported by both
     * the shader backend and the fragment pipe, but we can get called before