Fix glGetTransformFeedbackVarying JNI
- Deprecate the broken version that takes a byte argument.
- Implement a new version that takes a byte buffer argument.
Bug 19478262
Change-Id: I5ea4f11940e93b5964b66dbf5700b7ff8b80339e
diff --git a/core/jni/android_opengl_GLES30.cpp b/core/jni/android_opengl_GLES30.cpp
index c9b5af7..783baef 100644
--- a/core/jni/android_opengl_GLES30.cpp
+++ b/core/jni/android_opengl_GLES30.cpp
@@ -2012,22 +2012,35 @@
static void
android_glGetTransformFeedbackVarying__IIILjava_nio_IntBuffer_2Ljava_nio_IntBuffer_2Ljava_nio_IntBuffer_2B
(JNIEnv *_env, jobject _this, jint program, jint index, jint bufsize, jobject length_buf, jobject size_buf, jobject type_buf, jbyte name) {
+ jniThrowException(_env, "java/lang/UnsupportedOperationException", "deprecated");
+}
+
+/* void glGetTransformFeedbackVarying ( GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name ) */
+static void
+android_glGetTransformFeedbackVarying__IIILjava_nio_IntBuffer_2Ljava_nio_IntBuffer_2Ljava_nio_IntBuffer_2Ljava_nio_ByteBuffer_2
+ (JNIEnv *_env, jobject _this, jint program, jint index, jint bufsize, jobject length_buf, jobject size_buf, jobject type_buf, jobject name_buf) {
jintArray _lengthArray = (jintArray) 0;
jint _lengthBufferOffset = (jint) 0;
jintArray _sizeArray = (jintArray) 0;
jint _sizeBufferOffset = (jint) 0;
jintArray _typeArray = (jintArray) 0;
jint _typeBufferOffset = (jint) 0;
+ jbyteArray _nameArray = (jbyteArray)0;
+ jint _nameBufferOffset = (jint)0;
jint _lengthRemaining;
GLsizei *length = (GLsizei *) 0;
jint _sizeRemaining;
GLint *size = (GLint *) 0;
jint _typeRemaining;
GLenum *type = (GLenum *) 0;
+ jint _nameRemaining;
+ GLchar* name = (GLchar*)0;
+
length = (GLsizei *)getPointer(_env, length_buf, (jarray*)&_lengthArray, &_lengthRemaining, &_lengthBufferOffset);
size = (GLint *)getPointer(_env, size_buf, (jarray*)&_sizeArray, &_sizeRemaining, &_sizeBufferOffset);
type = (GLenum *)getPointer(_env, type_buf, (jarray*)&_typeArray, &_typeRemaining, &_typeBufferOffset);
+ name = (GLchar*)getPointer(_env, name_buf, (jarray*)&_nameArray, &_nameRemaining, &_nameBufferOffset);
if (length == NULL) {
char * _lengthBase = (char *)_env->GetIntArrayElements(_lengthArray, (jboolean *) 0);
length = (GLsizei *) (_lengthBase + _lengthBufferOffset);
@@ -2040,6 +2053,10 @@
char * _typeBase = (char *)_env->GetIntArrayElements(_typeArray, (jboolean *) 0);
type = (GLenum *) (_typeBase + _typeBufferOffset);
}
+ if (name == NULL) {
+ char* _nameBase = (char *)_env->GetByteArrayElements(_nameArray, (jboolean*)0);
+ name = (GLchar *) (_nameBase + _nameBufferOffset);
+ }
glGetTransformFeedbackVarying(
(GLuint)program,
(GLuint)index,
@@ -2047,11 +2064,7 @@
(GLsizei *)length,
(GLint *)size,
(GLenum *)type,
- // The cast below is incorrect. The driver will end up writing to the
- // address specified by name, which will always crash the process since
- // it is guaranteed to be in low memory. The additional static_cast
- // suppresses the warning for now. http://b/19478262
- (char *)static_cast<uintptr_t>(name)
+ (GLchar*)name
);
if (_typeArray) {
releaseArrayPointer<jintArray, jint*, IntArrayReleaser>(_env, _typeArray, (jint*)type, JNI_TRUE);
@@ -2062,6 +2075,9 @@
if (_lengthArray) {
releaseArrayPointer<jintArray, jint*, IntArrayReleaser>(_env, _lengthArray, (jint*)length, JNI_TRUE);
}
+ if (_nameArray) {
+ releaseArrayPointer<jbyteArray, jbyte*, ByteArrayReleaser>(_env, _nameArray, (jbyte*)name, JNI_TRUE);
+ }
}
/* void glGetTransformFeedbackVarying ( GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name ) */
@@ -5218,6 +5234,7 @@
{"glTransformFeedbackVaryings", "(I[Ljava/lang/String;I)V", (void *) android_glTransformFeedbackVaryings },
{"glGetTransformFeedbackVarying", "(III[II[II[II[BI)V", (void *) android_glGetTransformFeedbackVarying__III_3II_3II_3II_3BI },
{"glGetTransformFeedbackVarying", "(IIILjava/nio/IntBuffer;Ljava/nio/IntBuffer;Ljava/nio/IntBuffer;B)V", (void *) android_glGetTransformFeedbackVarying__IIILjava_nio_IntBuffer_2Ljava_nio_IntBuffer_2Ljava_nio_IntBuffer_2B },
+{"glGetTransformFeedbackVarying", "(IIILjava/nio/IntBuffer;Ljava/nio/IntBuffer;Ljava/nio/IntBuffer;Ljava/nio/ByteBuffer;)V", (void *) android_glGetTransformFeedbackVarying__IIILjava_nio_IntBuffer_2Ljava_nio_IntBuffer_2Ljava_nio_IntBuffer_2Ljava_nio_ByteBuffer_2 },
{"glGetTransformFeedbackVarying", "(II[II[II)Ljava/lang/String;", (void *) android_glGetTransformFeedbackVarying1 },
{"glGetTransformFeedbackVarying", "(IILjava/nio/IntBuffer;Ljava/nio/IntBuffer;)Ljava/lang/String;", (void *) android_glGetTransformFeedbackVarying2 },
{"glVertexAttribIPointerBounds", "(IIIILjava/nio/Buffer;I)V", (void *) android_glVertexAttribIPointerBounds__IIIILjava_nio_Buffer_2I },