From 86a87f091c61697d01ab534fa794f3911bc05252 Mon Sep 17 00:00:00 2001
From: valeriog <valeriog@crytek.com>
Date: Tue, 14 Oct 2014 17:45:53 +0200
Subject: [PATCH] Differentiate between glDepthRangef and glDepthRange when
 capturing. This prevents a crash when the captured application doesn't
 retrieve the glDepthRange pointer, and uses glDepthRangef instead.

---
 renderdoc/driver/gl/gl_common.h               |  1 +
 renderdoc/driver/gl/gl_driver.cpp             |  4 ++++
 .../driver/gl/wrappers/gl_state_funcs.cpp     | 21 ++++++++++++++++++-
 3 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/renderdoc/driver/gl/gl_common.h b/renderdoc/driver/gl/gl_common.h
index f547c8e26..f78414fbc 100644
--- a/renderdoc/driver/gl/gl_common.h
+++ b/renderdoc/driver/gl/gl_common.h
@@ -171,6 +171,7 @@ enum GLChunkType
 	DEPTH_FUNC,
 	DEPTH_MASK,
 	DEPTH_RANGE,
+	DEPTH_RANGEF,
 	DEPTH_RANGEARRAY,
 	DEPTH_BOUNDS,
 	PATCH_PARAMI,
diff --git a/renderdoc/driver/gl/gl_driver.cpp b/renderdoc/driver/gl/gl_driver.cpp
index fdda8a713..b2c2aa726 100644
--- a/renderdoc/driver/gl/gl_driver.cpp
+++ b/renderdoc/driver/gl/gl_driver.cpp
@@ -121,6 +121,7 @@ const char *GLChunkNames[] =
 	"glDepthFunc",
 	"glDepthMask",
 	"glDepthRange",
+	"glDepthRangef",
 	"glDepthRangeArrayv",
 	"glDepthBoundsEXT",
 	"glPatchParameteri",
@@ -1191,6 +1192,9 @@ void WrappedOpenGL::ProcessChunk(uint64_t offset, GLChunkType context)
 	case DEPTH_RANGE:
 		Serialise_glDepthRange(0, 0);
 		break;
+	case DEPTH_RANGEF:
+		Serialise_glDepthRangef(0, 0);
+		break;
 	case DEPTH_RANGEARRAY:
 		Serialise_glDepthRangeArrayv(0, 0, NULL);
 		break;
diff --git a/renderdoc/driver/gl/wrappers/gl_state_funcs.cpp b/renderdoc/driver/gl/wrappers/gl_state_funcs.cpp
index 2b76d0d6e..919b37954 100644
--- a/renderdoc/driver/gl/wrappers/gl_state_funcs.cpp
+++ b/renderdoc/driver/gl/wrappers/gl_state_funcs.cpp
@@ -506,9 +506,28 @@ void WrappedOpenGL::glDepthRange(GLdouble nearVal, GLdouble farVal)
 	}
 }
 
+bool WrappedOpenGL::Serialise_glDepthRangef(GLfloat nearVal, GLfloat farVal)
+{
+	SERIALISE_ELEMENT(GLfloat, n, nearVal);
+	SERIALISE_ELEMENT(GLfloat, f, farVal);
+
+	if(m_State <= EXECUTING)
+		m_Real.glDepthRangef(n, f);
+
+	return true;
+}
+
 void WrappedOpenGL::glDepthRangef(GLfloat nearVal, GLfloat farVal)
 {
-	glDepthRange(nearVal, farVal);
+	m_Real.glDepthRangef(nearVal, farVal);
+
+	if(m_State == WRITING_CAPFRAME)
+	{
+		SCOPED_SERIALISE_CONTEXT(DEPTH_RANGEF);
+		Serialise_glDepthRangef(nearVal, farVal);
+
+		m_ContextRecord->AddChunk(scope.Get());
+	}
 }
 
 bool WrappedOpenGL::Serialise_glDepthRangeArrayv(GLuint first, GLsizei count, const GLdouble *v)