Daniel Lehman : glu32: Return GL_OUT_OF_MEMORY from gluScaleImage if no context.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 3b61019b8cdb64853fe1cb8f5e4c9381dcdaec02
URL:    https://gitlab.winehq.org/wine/wine/-/commit/3b61019b8cdb64853fe1cb8f5e4c938...

Author: Daniel Lehman 
Date:   Sun Jan 28 08:05:20 2024 -0800

glu32: Return GL_OUT_OF_MEMORY from gluScaleImage if no context.

---

dlls/glu32/mipmap.c    | 5 +++++
 dlls/glu32/tests/glu.c | 3 ---
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/dlls/glu32/mipmap.c b/dlls/glu32/mipmap.c
index 6877e2f342c..4a324f45e70 100644
--- a/dlls/glu32/mipmap.c
+++ b/dlls/glu32/mipmap.c
@@ -37,6 +37,7 @@

#include "windef.h"
 #include "winbase.h"
+#include "wingdi.h"
 #include "wine/wgl.h"
 #include "wine/glu.h"

@@ -3452,6 +3453,10 @@ GLint WINAPI gluScaleImage( GLenum format, GLint widthin, GLint heightin, GLenum
     if (!isLegalFormatForPackedPixelType(format, typeout)) {
        return GLU_INVALID_OPERATION;
     }
+    if (!wglGetCurrentContext()) {
+       return GL_OUT_OF_MEMORY; /* windows returns this if no gl context (not glu error) */
+    }
+
     beforeImage =
    HeapAlloc(GetProcessHeap(), 0, image_size(widthin, heightin, format, GL_UNSIGNED_SHORT));
     afterImage =
diff --git a/dlls/glu32/tests/glu.c b/dlls/glu32/tests/glu.c
index 698976d3bd0..4e9931141fb 100644
--- a/dlls/glu32/tests/glu.c
+++ b/dlls/glu32/tests/glu.c
@@ -40,12 +40,9 @@ static void test_gluScaleImage(HDC hdc, HGLRC hglrc)
     /* test without any context */
     wglMakeCurrent(hdc, 0);

-    /* test crashes on Wine */
-    if (!winetest_platform_is_wine) {
     err = gluScaleImage(GL_RGBA, DIMIN, DIMIN, GL_UNSIGNED_BYTE, bufin,
                         DIMOUT, DIMOUT, GL_UNSIGNED_BYTE, bufout);
     ok(err == GL_OUT_OF_MEMORY, "got %x\n", err);
-    }

/* test with context */
     wglMakeCurrent(hdc, hglrc);