Zebediah Figura : wined3d/glsl: Clamp ftoi upper bound to INT_MAX.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: f30418e86119a8996d0e2dd038800a39399bd1da
URL:    https://gitlab.winehq.org/wine/wine/-/commit/f30418e86119a8996d0e2dd038800a3...

Author: Zebediah Figura 
Date:   Tue Oct 24 14:43:13 2023 -0500

wined3d/glsl: Clamp ftoi upper bound to INT_MAX.

Ported from a5b6162d258faa42a03e53af9fb513473b4255a3 in vkd3d.

---

dlls/wined3d/glsl_shader.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/dlls/wined3d/glsl_shader.c b/dlls/wined3d/glsl_shader.c
index 1137aa24c5e..12fa4eaf029 100644
--- a/dlls/wined3d/glsl_shader.c
+++ b/dlls/wined3d/glsl_shader.c
@@ -4333,9 +4333,11 @@ static void shader_glsl_to_int(const struct wined3d_shader_instruction *ins)
     shader_glsl_add_src_param(ins, &ins->src[0], write_mask, &src_param);

if (mask_size > 1)
-        shader_addline(buffer, "ivec%u(max(%s, vec%u(-2147483648.0))));\n", mask_size, src_param.param_str, mask_size);
+        shader_addline(buffer, "mix(ivec%u(max(%s, vec%u(-2147483648.0))), ivec%u(0x7fffffff), greaterThanEqual(%s, vec%u(2147483648.0))));\n",
+                mask_size, src_param.param_str, mask_size, mask_size, src_param.param_str, mask_size);
     else
-        shader_addline(buffer, "int(max(%s, -2147483648.0)));\n", src_param.param_str);
+        shader_addline(buffer, "mix(int(max(%s, -2147483648.0)), 0x7fffffff, %s >= 2147483648.0));\n",
+                src_param.param_str, src_param.param_str);
 }

static void shader_glsl_to_uint(const struct wined3d_shader_instruction *ins)