e58a97b5d7
This changes generation of the OpenGL bindings to prevent crashes of methods with more then one nio buffer argument. Bug: 6772416 Change-Id: I4eff25c2f568dea78a6ffd3e95ff4620ab4b3b7d
260 lines
9.3 KiB
C++
260 lines
9.3 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 "jni.h"
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#include "JNIHelp.h"
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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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// Work around differences between the generated name and the actual name.
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#define glBlendEquation glBlendEquationOES
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#define glBlendEquationSeparate glBlendEquationSeparateOES
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#define glBlendFuncSeparate glBlendFuncSeparateOES
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#define glGetTexGenfv glGetTexGenfvOES
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#define glGetTexGeniv glGetTexGenivOES
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#define glGetTexGenxv glGetTexGenxvOES
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#define glTexGenf glTexGenfOES
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#define glTexGenfv glTexGenfvOES
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#define glTexGeni glTexGeniOES
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#define glTexGeniv glTexGenivOES
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#define glTexGenx glTexGenxOES
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#define glTexGenxv glTexGenxvOES
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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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GL_API void GL_APIENTRY glPointSizePointerOESBounds(GLenum type,
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GLsizei stride, const GLvoid *pointer, GLsizei count);
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GL_API void GL_APIENTRY glMatrixIndexPointerOESBounds(GLint size, GLenum type,
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GLsizei stride, const GLvoid *pointer, GLsizei count);
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GL_API void GL_APIENTRY glWeightPointerOESBounds(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 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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static jfieldID haveCheckedExtensionsID;
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static jfieldID have_OES_blend_equation_separateID;
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static jfieldID have_OES_blend_subtractID;
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static jfieldID have_OES_framebuffer_objectID;
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static jfieldID have_OES_texture_cube_mapID;
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/* Cache method IDs each time the class is loaded. */
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static void
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nativeClassInit(JNIEnv *_env, jclass glImplClass)
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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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haveCheckedExtensionsID = _env->GetFieldID(G11ImplClass, "haveCheckedExtensions", "Z");
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have_OES_blend_equation_separateID = _env->GetFieldID(G11ImplClass, "have_OES_blend_equation_separate", "Z");
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have_OES_blend_subtractID = _env->GetFieldID(G11ImplClass, "have_OES_blend_subtract", "Z");
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have_OES_framebuffer_objectID = _env->GetFieldID(G11ImplClass, "have_OES_framebuffer_object", "Z");
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have_OES_texture_cube_mapID = _env->GetFieldID(G11ImplClass, "have_OES_texture_cube_map", "Z");
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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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getPointer(JNIEnv *_env, jobject buffer, jarray *array, jint *remaining, jint *offset)
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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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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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return NULL;
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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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jint offset;
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buf = getPointer(_env, buffer, &array, &remaining, &offset);
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if (array) {
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releasePointer(_env, array, buf, 0);
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}
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buf = buf + offset;
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} else {
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jniThrowException(_env, "java/lang/IllegalArgumentException",
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"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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// Check if the extension at the head of pExtensions is pExtension. Note that pExtensions is
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// terminated by either 0 or space, while pExtension is terminated by 0.
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static bool
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extensionEqual(const GLubyte* pExtensions, const GLubyte* pExtension) {
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while (true) {
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char a = *pExtensions++;
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char b = *pExtension++;
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bool aEnd = a == '\0' || a == ' ';
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bool bEnd = b == '\0';
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if ( aEnd || bEnd) {
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return aEnd == bEnd;
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}
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if ( a != b ) {
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return false;
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}
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}
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}
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static const GLubyte*
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nextExtension(const GLubyte* pExtensions) {
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while (true) {
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char a = *pExtensions++;
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if ( a == '\0') {
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return pExtensions-1;
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} else if ( a == ' ') {
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return pExtensions;
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}
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}
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}
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static bool
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checkForExtension(const GLubyte* pExtensions, const GLubyte* pExtension) {
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for (;*pExtensions != '\0'; pExtensions = nextExtension(pExtensions)) {
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if (extensionEqual(pExtensions, pExtension)) {
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return true;
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}
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}
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return false;
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}
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static bool
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supportsExtension(JNIEnv *_env, jobject impl, jfieldID fieldId) {
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if (!_env->GetBooleanField(impl, haveCheckedExtensionsID)) {
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_env->SetBooleanField(impl, haveCheckedExtensionsID, true);
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const GLubyte* sExtensions = glGetString(GL_EXTENSIONS);
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_env->SetBooleanField(impl, have_OES_blend_equation_separateID,
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checkForExtension(sExtensions, (const GLubyte*) "GL_OES_blend_equation_separate"));
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_env->SetBooleanField(impl, have_OES_blend_subtractID,
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checkForExtension(sExtensions, (const GLubyte*) "GL_OES_blend_subtract"));
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_env->SetBooleanField(impl, have_OES_framebuffer_objectID,
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checkForExtension(sExtensions, (const GLubyte*) "GL_OES_framebuffer_object"));
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_env->SetBooleanField(impl, have_OES_texture_cube_mapID,
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checkForExtension(sExtensions, (const GLubyte*) "GL_OES_texture_cube_map"));
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}
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return _env->GetBooleanField(impl, fieldId);
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}
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// --------------------------------------------------------------------------
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