618fa10949
Instead of using a different function pointer table for ES 1.x and ES 2.x, we use a single one that is the union (sort|uniq) of both tables. Two instances of this table are initialized with pointers to GL ES 1.x and GL ES 2.x entry-points. When a context is created, we store its version number and when it is bound to a thread we set the approruiate table based on the stored version. This introduce no penalty while dispatching gl calls to the right API version. [Pending Dr No approval for MR1]
91 lines
2.4 KiB
C++
91 lines
2.4 KiB
C++
/*
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** Copyright 2009, 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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#ifndef ANDROID_EGL_LOADER_H
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#define ANDROID_EGL_LOADER_H
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#include <ctype.h>
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#include <string.h>
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#include <errno.h>
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#include <utils/Errors.h>
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#include <utils/Singleton.h>
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#include <utils/String8.h>
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#include <utils/Vector.h>
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#include <EGL/egl.h>
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// ----------------------------------------------------------------------------
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namespace android {
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// ----------------------------------------------------------------------------
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struct egl_connection_t;
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class Loader : public Singleton<Loader>
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{
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friend class Singleton<Loader>;
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typedef __eglMustCastToProperFunctionPointerType (*getProcAddressType)(
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const char*);
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enum {
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EGL = 0x01,
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GLESv1_CM = 0x02,
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GLESv2 = 0x04
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};
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struct driver_t {
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driver_t(void* gles);
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~driver_t();
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status_t set(void* hnd, int32_t api);
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void* dso[3];
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};
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struct entry_t {
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entry_t() { }
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entry_t(int dpy, int impl, const char* tag);
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int dpy;
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int impl;
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String8 tag;
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};
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Vector<entry_t> gConfig;
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getProcAddressType getProcAddress;
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const char* getTag(int dpy, int impl);
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public:
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~Loader();
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void* open(EGLNativeDisplayType display, int impl, egl_connection_t* cnx);
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status_t close(void* driver);
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private:
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Loader();
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void *load_driver(const char* driver, egl_connection_t* cnx, uint32_t mask);
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static __attribute__((noinline))
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void init_api(void* dso,
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char const * const * api,
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__eglMustCastToProperFunctionPointerType* curr,
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getProcAddressType getProcAddress);
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};
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// ----------------------------------------------------------------------------
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}; // namespace android
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// ----------------------------------------------------------------------------
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#endif /* ANDROID_EGL_LOADER_H */
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