wined3d: Limit amount of video memory for older Windows versions.

This should affect only 32-bit applications when the emulated Windows version is set to "Windows 2003" or older. Signed-off-by: Józef Kucia <jkucia@codeweavers.com> Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

wined3d: Limit amount of video memory for older Windows versions.
565a5715 · Józef Kucia · Alexandre Julliard · 630f5e97 · 565a5715
Commit 565a5715 authored Mar 11, 2016 by Józef Kucia Committed by Alexandre Julliard Mar 13, 2016
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directx.c dlls/wined3d/directx.c +12 -0

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--- a/dlls/wined3d/directx.c
+++ b/dlls/wined3d/directx.c
@@ -1510,6 +1510,18 @@ static void init_driver_info(struct wined3d_driver_info *driver_info,
        driver = DRIVER_UNKNOWN;
    }

+    /**
+     * Diablo 2 crashes when the amount of video memory is greater than 0x7fffffff.
+     * In order to avoid this application bug we limit the amount of video memory
+     * to LONG_MAX for older Windows versions.
+     */
+    if (os_version.dwMajorVersion <= 5 && os_version.dwMinorVersion <= 2
+            && driver_info->vram_bytes > LONG_MAX)
+    {
+        TRACE("Limiting amount of video memory to %#lx bytes for OS version older than Vista.\n", LONG_MAX);
+        driver_info->vram_bytes = LONG_MAX;
+    }
+
    if (wined3d_settings.emulated_textureram)
    {
        TRACE("Overriding amount of video memory with 0x%s bytes.\n",