trace: Better fallback of glGetDebugMessageLog*

If glGetDebugMessageLog* is not exposed by the underlying driver during
tracing, the function should return a value of 0 (meaning that no
strings were in the log) instead of aborting.

diff --git a/specs/glapi.py b/specs/glapi.py
index 701b56fe6a73350f7a880bd1afb2897b89d57041..16c2b0fe32f53c89cfca3c1af2d6ccf85868d0ab 100644 (file)
--- a/specs/glapi.py
+++ b/specs/glapi.py
@@ -1309,7 +1309,7 @@ glapi.addFunctions([
     GlFunction(Void, "glDebugMessageControlARB", [(GLenum, "source"), (GLenum, "type"), (GLenum, "severity"), (GLsizei, "count"), (Array(Const(GLuint), "count"), "ids"), (GLboolean, "enabled")], sideeffects=True),
     GlFunction(Void, "glDebugMessageInsertARB", [(GLenum, "source"), (GLenum, "type"), (GLuint, "id"), (GLenum, "severity"), (GLsizei, "length"), InGlString(GLchar, "length", "buf")], sideeffects=True),
     GlFunction(Void, "glDebugMessageCallbackARB", [(GLDEBUGPROCARB, "callback"), (GLpointerConst, "userParam")], sideeffects=False),
-    GlFunction(GLuint, "glGetDebugMessageLogARB", [(GLuint, "count"), (GLsizei, "bufsize"), Out(Array(GLenum, "count"), "sources"), Out(Array(GLenum, "count"), "types"), Out(Array(GLuint, "count"), "ids"), Out(Array(GLenum, "count"), "severities"), Out(Array(GLsizei, "count"), "lengths"), Out(String(GLchar, "_glGetDebugMessageLog_length(messageLog, lengths, _result)"), "messageLog")], sideeffects=False),
+    GlFunction(GLuint, "glGetDebugMessageLogARB", [(GLuint, "count"), (GLsizei, "bufsize"), Out(Array(GLenum, "count"), "sources"), Out(Array(GLenum, "count"), "types"), Out(Array(GLuint, "count"), "ids"), Out(Array(GLenum, "count"), "severities"), Out(Array(GLsizei, "count"), "lengths"), Out(String(GLchar, "_glGetDebugMessageLog_length(messageLog, lengths, _result)"), "messageLog")], sideeffects=False, fail=0),
 
     # GL_ARB_robustness
     GlFunction(GLenum, "glGetGraphicsResetStatusARB", [], sideeffects=False),
@@ -1364,7 +1364,7 @@ glapi.addFunctions([
     GlFunction(Void, "glDebugMessageControl", [(GLenum, "source"), (GLenum, "type"), (GLenum, "severity"), (GLsizei, "count"), (Array(Const(GLuint), "count"), "ids"), (GLboolean, "enabled")], sideeffects=True),
     GlFunction(Void, "glDebugMessageInsert", [(GLenum, "source"), (GLenum, "type"), (GLuint, "id"), (GLenum, "severity"), (GLsizei, "length"), InGlString(GLchar, "length", "buf")], sideeffects=True),
     GlFunction(Void, "glDebugMessageCallback", [(GLDEBUGPROC, "callback"), (OpaquePointer(Const(Void)), "userParam")], sideeffects=False),
-    GlFunction(GLuint, "glGetDebugMessageLog", [(GLuint, "count"), (GLsizei, "bufsize"), Out(Array(GLenum, "count"), "sources"), Out(Array(GLenum, "count"), "types"), Out(Array(GLuint, "count"), "ids"), Out(Array(GLenum, "count"), "severities"), Out(Array(GLsizei, "count"), "lengths"), Out(String(GLchar, "_glGetDebugMessageLog_length(messageLog, lengths, _result)"), "messageLog")], sideeffects=False),
+    GlFunction(GLuint, "glGetDebugMessageLog", [(GLuint, "count"), (GLsizei, "bufsize"), Out(Array(GLenum, "count"), "sources"), Out(Array(GLenum, "count"), "types"), Out(Array(GLuint, "count"), "ids"), Out(Array(GLenum, "count"), "severities"), Out(Array(GLsizei, "count"), "lengths"), Out(String(GLchar, "_glGetDebugMessageLog_length(messageLog, lengths, _result)"), "messageLog")], sideeffects=False, fail=0),
     GlFunction(Void, "glPushDebugGroup", [(GLenum, "source"), (GLuint, "id"), (GLsizei, "length"), InGlString(GLchar, "length", "message")], sideeffects=True),
     GlFunction(Void, "glPopDebugGroup", [], sideeffects=True),
     GlFunction(Void, "glObjectLabel", [(GLenum, "identifier"), (GLuint, "name"), (GLsizei, "length"), InGlString(GLchar, "length", "label")], sideeffects=True),
@@ -2931,7 +2931,7 @@ glapi.addFunctions([
     GlFunction(Void, "glDebugMessageEnableAMD", [(GLenum, "category"), (GLenum, "severity"), (GLsizei, "count"), (Array(Const(GLuint), "count"), "ids"), (GLboolean, "enabled")], sideeffects=True),
     GlFunction(Void, "glDebugMessageInsertAMD", [(GLenum, "category"), (GLenum, "severity"), (GLuint, "id"), (GLsizei, "length"), InGlString(GLchar, "length", "buf")], sideeffects=True),
     GlFunction(Void, "glDebugMessageCallbackAMD", [(GLDEBUGPROCAMD, "callback"), (GLpointer, "userParam")], sideeffects=False),
-    GlFunction(GLuint, "glGetDebugMessageLogAMD", [(GLuint, "count"), (GLsizei, "bufsize"), Out(Array(GLenum, "count"), "categories"), Out(Array(GLuint, "count"), "severities"), Out(Array(GLuint, "count"), "ids"), Out(Array(GLsizei, "count"), "lengths"), Out(String(GLchar, "_glGetDebugMessageLog_length(message, lengths, _result)"), "message")], sideeffects=False),
+    GlFunction(GLuint, "glGetDebugMessageLogAMD", [(GLuint, "count"), (GLsizei, "bufsize"), Out(Array(GLenum, "count"), "categories"), Out(Array(GLuint, "count"), "severities"), Out(Array(GLuint, "count"), "ids"), Out(Array(GLsizei, "count"), "lengths"), Out(String(GLchar, "_glGetDebugMessageLog_length(message, lengths, _result)"), "message")], sideeffects=False, fail=0),
 
     # GL_NV_vdpau_interop
     #GlFunction(Void, "glVDPAUInitNV", [(Pointer(Const(GLvoid)), "vdpDevice"), (Pointer(Const(GLvoid)), "getProcAddress")]),