134 lines
3.5 KiB
C++
134 lines
3.5 KiB
C++
/*
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* Copyright (C) 2010 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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#include <stdlib.h>
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#include <stdio.h>
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#include <stdint.h>
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#include "GLExtensions.h"
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namespace android {
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// ---------------------------------------------------------------------------
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ANDROID_SINGLETON_STATIC_INSTANCE( GLExtensions )
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GLExtensions::GLExtensions()
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: mHaveTextureExternal(false),
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mHaveNpot(false),
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mHaveDirectTexture(false)
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{
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}
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void GLExtensions::initWithGLStrings(
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GLubyte const* vendor,
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GLubyte const* renderer,
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GLubyte const* version,
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GLubyte const* extensions,
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char const* egl_vendor,
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char const* egl_version,
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char const* egl_extensions)
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{
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mVendor = (char const*)vendor;
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mRenderer = (char const*)renderer;
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mVersion = (char const*)version;
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mExtensions = (char const*)extensions;
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mEglVendor = egl_vendor;
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mEglVersion = egl_version;
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mEglExtensions = egl_extensions;
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char const* curr = (char const*)extensions;
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char const* head = curr;
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do {
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head = strchr(curr, ' ');
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String8 s(curr, head ? head-curr : strlen(curr));
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if (s.length()) {
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mExtensionList.add(s);
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}
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curr = head+1;
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} while (head);
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curr = egl_extensions;
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head = curr;
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do {
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head = strchr(curr, ' ');
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String8 s(curr, head ? head-curr : strlen(curr));
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if (s.length()) {
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mExtensionList.add(s);
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}
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curr = head+1;
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} while (head);
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#ifdef EGL_ANDROID_image_native_buffer
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if (hasExtension("GL_OES_EGL_image") &&
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(hasExtension("EGL_KHR_image_base") || hasExtension("EGL_KHR_image")) &&
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hasExtension("EGL_ANDROID_image_native_buffer"))
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{
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mHaveDirectTexture = true;
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}
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#else
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#warning "EGL_ANDROID_image_native_buffer not supported"
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#endif
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if (hasExtension("GL_ARB_texture_non_power_of_two")) {
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mHaveNpot = true;
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}
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if (hasExtension("GL_OES_texture_external")) {
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mHaveTextureExternal = true;
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} else if (strstr(mRenderer.string(), "Adreno")) {
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// hack for Adreno 200
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mHaveTextureExternal = true;
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}
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}
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bool GLExtensions::hasExtension(char const* extension) const
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{
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const String8 s(extension);
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return mExtensionList.indexOf(s) >= 0;
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}
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char const* GLExtensions::getVendor() const {
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return mVendor.string();
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}
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char const* GLExtensions::getRenderer() const {
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return mRenderer.string();
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}
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char const* GLExtensions::getVersion() const {
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return mVersion.string();
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}
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char const* GLExtensions::getExtension() const {
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return mExtensions.string();
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}
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char const* GLExtensions::getEglVendor() const {
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return mEglVendor.string();
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}
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char const* GLExtensions::getEglVersion() const {
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return mEglVersion.string();
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}
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char const* GLExtensions::getEglExtension() const {
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return mEglExtensions.string();
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}
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// ---------------------------------------------------------------------------
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}; // namespace android
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