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authormarha <marha@users.sourceforge.net>2013-01-22 14:27:38 +0100
committermarha <marha@users.sourceforge.net>2013-01-22 14:27:38 +0100
commit7002c66cfba01e7d3b88dae498a195f78f0e83f5 (patch)
tree2fbbd202a6a4243f0e64a8b22e22417a609ae19d /mesalib/src/mesa/main/uniforms.c
parent50c07563e17397daf040a32d8fdd3ab397e72371 (diff)
parent470f7ca9f0be348faf2f03fc16811844c5eeffce (diff)
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Merge remote-tracking branch 'origin/released'
* origin/released: fontconfig libfontenc mesa mkfontscale pixman xserver xkeyboard-config Conflicts: mesalib/src/mesa/main/syncobj.c mesalib/src/mesa/main/syncobj.h xorg-server/hw/xwin/winconfig.c xorg-server/hw/xwin/winmultiwindowwndproc.c
Diffstat (limited to 'mesalib/src/mesa/main/uniforms.c')
-rw-r--r--mesalib/src/mesa/main/uniforms.c45
1 files changed, 41 insertions, 4 deletions
diff --git a/mesalib/src/mesa/main/uniforms.c b/mesalib/src/mesa/main/uniforms.c
index 77b195edb..62c85b3c0 100644
--- a/mesalib/src/mesa/main/uniforms.c
+++ b/mesalib/src/mesa/main/uniforms.c
@@ -782,8 +782,6 @@ _mesa_GetActiveUniformName(GLuint program, GLuint uniformIndex,
return;
}
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveUniformName");
if (!shProg)
@@ -795,7 +793,46 @@ _mesa_GetActiveUniformName(GLuint program, GLuint uniformIndex,
}
if (uniformName) {
- _mesa_copy_string(uniformName, bufSize, length,
- shProg->UniformStorage[uniformIndex].name);
+ _mesa_get_uniform_name(& shProg->UniformStorage[uniformIndex],
+ bufSize, length, uniformName);
+ }
+}
+
+void
+_mesa_get_uniform_name(const struct gl_uniform_storage *uni,
+ GLsizei maxLength, GLsizei *length,
+ GLchar *nameOut)
+{
+ GLsizei localLength;
+
+ if (length == NULL)
+ length = &localLength;
+
+ _mesa_copy_string(nameOut, maxLength, length, uni->name);
+
+ /* Page 61 (page 73 of the PDF) in section 2.11 of the OpenGL ES 3.0
+ * spec says:
+ *
+ * "If the active uniform is an array, the uniform name returned in
+ * name will always be the name of the uniform array appended with
+ * "[0]"."
+ *
+ * The same text also appears in the OpenGL 4.2 spec. It does not,
+ * however, appear in any previous spec. Previous specifications are
+ * ambiguous in this regard. However, either name can later be passed
+ * to glGetUniformLocation (and related APIs), so there shouldn't be any
+ * harm in always appending "[0]" to uniform array names.
+ */
+ if (uni->array_elements != 0) {
+ unsigned i;
+
+ /* The comparison is strange because *length does *NOT* include the
+ * terminating NUL, but maxLength does.
+ */
+ for (i = 0; i < 3 && (*length + i + 1) < maxLength; i++)
+ nameOut[*length + i] = "[0]"[i];
+
+ nameOut[*length + i] = '\0';
+ *length += i;
}
}