192 lines
6.4 KiB
C++
192 lines
6.4 KiB
C++
**
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** Copyright 2006, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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// This source file is automatically generated
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#include <android_runtime/AndroidRuntime.h>
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#include <utils/misc.h>
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#include <assert.h>
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#include <GLES/gl.h>
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#include <GLES/glext.h>
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/* special calls implemented in Android's GLES wrapper used to more
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* efficiently bound-check passed arrays */
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extern "C" {
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GL_API void GL_APIENTRY glColorPointerBounds(GLint size, GLenum type, GLsizei stride,
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const GLvoid *ptr, GLsizei count);
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GL_API void GL_APIENTRY glNormalPointerBounds(GLenum type, GLsizei stride,
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const GLvoid *pointer, GLsizei count);
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GL_API void GL_APIENTRY glTexCoordPointerBounds(GLint size, GLenum type,
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GLsizei stride, const GLvoid *pointer, GLsizei count);
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GL_API void GL_APIENTRY glVertexPointerBounds(GLint size, GLenum type,
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GLsizei stride, const GLvoid *pointer, GLsizei count);
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}
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static int initialized = 0;
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static jclass nioAccessClass;
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static jclass bufferClass;
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static jclass OOMEClass;
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static jclass UOEClass;
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static jclass IAEClass;
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static jclass AIOOBEClass;
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static jclass G11ImplClass;
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static jmethodID getBasePointerID;
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static jmethodID getBaseArrayID;
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static jmethodID getBaseArrayOffsetID;
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static jmethodID allowIndirectBuffersID;
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static jfieldID positionID;
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static jfieldID limitID;
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static jfieldID elementSizeShiftID;
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/* Cache method IDs each time the class is loaded. */
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static void
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nativeClassInitBuffer(JNIEnv *_env)
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{
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jclass nioAccessClassLocal = _env->FindClass("java/nio/NIOAccess");
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nioAccessClass = (jclass) _env->NewGlobalRef(nioAccessClassLocal);
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jclass bufferClassLocal = _env->FindClass("java/nio/Buffer");
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bufferClass = (jclass) _env->NewGlobalRef(bufferClassLocal);
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jclass g11impClassLocal = _env->FindClass("com/google/android/gles_jni/GLImpl");
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G11ImplClass = (jclass) _env->NewGlobalRef(g11impClassLocal);
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getBasePointerID = _env->GetStaticMethodID(nioAccessClass,
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"getBasePointer", "(Ljava/nio/Buffer;)J");
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getBaseArrayID = _env->GetStaticMethodID(nioAccessClass,
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"getBaseArray", "(Ljava/nio/Buffer;)Ljava/lang/Object;");
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getBaseArrayOffsetID = _env->GetStaticMethodID(nioAccessClass,
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"getBaseArrayOffset", "(Ljava/nio/Buffer;)I");
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allowIndirectBuffersID = _env->GetStaticMethodID(g11impClassLocal,
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"allowIndirectBuffers", "(Ljava/lang/String;)Z");
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positionID = _env->GetFieldID(bufferClass, "position", "I");
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limitID = _env->GetFieldID(bufferClass, "limit", "I");
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elementSizeShiftID =
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_env->GetFieldID(bufferClass, "_elementSizeShift", "I");
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}
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static void
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nativeClassInit(JNIEnv *_env, jclass glImplClass)
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{
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nativeClassInitBuffer(_env);
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jclass IAEClassLocal =
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_env->FindClass("java/lang/IllegalArgumentException");
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jclass OOMEClassLocal =
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_env->FindClass("java/lang/OutOfMemoryError");
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jclass UOEClassLocal =
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_env->FindClass("java/lang/UnsupportedOperationException");
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jclass AIOOBEClassLocal =
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_env->FindClass("java/lang/ArrayIndexOutOfBoundsException");
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IAEClass = (jclass) _env->NewGlobalRef(IAEClassLocal);
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OOMEClass = (jclass) _env->NewGlobalRef(OOMEClassLocal);
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UOEClass = (jclass) _env->NewGlobalRef(UOEClassLocal);
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AIOOBEClass = (jclass) _env->NewGlobalRef(AIOOBEClassLocal);
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}
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static void *
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getPointer(JNIEnv *_env, jobject buffer, jarray *array, jint *remaining)
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{
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jint position;
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jint limit;
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jint elementSizeShift;
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jlong pointer;
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jint offset;
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void *data;
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position = _env->GetIntField(buffer, positionID);
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limit = _env->GetIntField(buffer, limitID);
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elementSizeShift = _env->GetIntField(buffer, elementSizeShiftID);
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*remaining = (limit - position) << elementSizeShift;
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pointer = _env->CallStaticLongMethod(nioAccessClass,
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getBasePointerID, buffer);
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if (pointer != 0L) {
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*array = NULL;
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return (void *) (jint) pointer;
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}
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*array = (jarray) _env->CallStaticObjectMethod(nioAccessClass,
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getBaseArrayID, buffer);
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if (*array == NULL) {
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return (void*) NULL;
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}
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offset = _env->CallStaticIntMethod(nioAccessClass,
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getBaseArrayOffsetID, buffer);
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data = _env->GetPrimitiveArrayCritical(*array, (jboolean *) 0);
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return (void *) ((char *) data + offset);
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}
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static void
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releasePointer(JNIEnv *_env, jarray array, void *data, jboolean commit)
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{
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_env->ReleasePrimitiveArrayCritical(array, data,
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commit ? 0 : JNI_ABORT);
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}
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extern "C" {
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extern char* __progname;
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}
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static bool
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allowIndirectBuffers(JNIEnv *_env) {
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static jint sIndirectBufferCompatability;
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if (sIndirectBufferCompatability == 0) {
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jobject appName = _env->NewStringUTF(::__progname);
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sIndirectBufferCompatability = _env->CallStaticBooleanMethod(G11ImplClass, allowIndirectBuffersID, appName) ? 2 : 1;
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}
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return sIndirectBufferCompatability == 2;
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}
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static void *
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getDirectBufferPointer(JNIEnv *_env, jobject buffer) {
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if (!buffer) {
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return NULL;
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}
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void* buf = _env->GetDirectBufferAddress(buffer);
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if (buf) {
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jint position = _env->GetIntField(buffer, positionID);
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jint elementSizeShift = _env->GetIntField(buffer, elementSizeShiftID);
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buf = ((char*) buf) + (position << elementSizeShift);
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} else {
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if (allowIndirectBuffers(_env)) {
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jarray array = 0;
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jint remaining;
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buf = getPointer(_env, buffer, &array, &remaining);
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if (array) {
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releasePointer(_env, array, buf, 0);
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}
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} else {
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_env->ThrowNew(IAEClass, "Must use a native order direct Buffer");
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}
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}
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return buf;
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}
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static int
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getNumCompressedTextureFormats() {
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int numCompressedTextureFormats = 0;
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glGetIntegerv(GL_NUM_COMPRESSED_TEXTURE_FORMATS, &numCompressedTextureFormats);
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return numCompressedTextureFormats;
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}
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// --------------------------------------------------------------------------
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