177 lines
5.6 KiB
C++
177 lines
5.6 KiB
C++
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/*
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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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#include <ctype.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <cutils/log.h>
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#include "hooks.h"
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// ----------------------------------------------------------------------------
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namespace android {
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// ----------------------------------------------------------------------------
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#undef API_ENTRY
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#undef CALL_GL_API
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#undef GL_EXTENSION
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#undef GL_EXTENSION_NAME
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#if defined(__arm__)
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#ifdef HAVE_ARM_TLS_REGISTER
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#define GET_TLS(reg) \
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"mrc p15, 0, " #reg ", c13, c0, 3 \n"
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#else
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#define GET_TLS(reg) \
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"mov " #reg ", #0xFFFF0FFF \n" \
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"ldr " #reg ", [" #reg ", #-15] \n"
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#endif
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#define API_ENTRY(_api) __attribute__((naked)) _api
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#define CALL_GL_EXTENSION_API(_api) \
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asm volatile( \
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GET_TLS(r12) \
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"ldr r12, [r12, %[tls]] \n" \
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"cmp r12, #0 \n" \
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"ldrne r12, [r12, %[api]] \n" \
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"cmpne r12, #0 \n" \
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"bxne r12 \n" \
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"bx lr \n" \
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: \
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: [tls] "J"(TLS_SLOT_OPENGL_API*4), \
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[api] "J"(__builtin_offsetof(gl_hooks_t, \
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ext.extensions[_api])) \
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: \
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);
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#define GL_EXTENSION_NAME(_n) __glExtFwd##_n
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#define GL_EXTENSION(_n) \
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void API_ENTRY(GL_EXTENSION_NAME(_n))() { \
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CALL_GL_EXTENSION_API(_n); \
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}
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#else
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#define GL_EXTENSION_NAME(_n) NULL
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#define GL_EXTENSION(_n)
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#warning "eglGetProcAddress() partially supported on this architecture"
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#endif
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GL_EXTENSION(0)
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GL_EXTENSION(1)
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GL_EXTENSION(2)
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GL_EXTENSION(3)
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GL_EXTENSION(4)
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GL_EXTENSION(5)
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GL_EXTENSION(6)
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GL_EXTENSION(7)
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GL_EXTENSION(8)
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GL_EXTENSION(9)
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GL_EXTENSION(10)
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GL_EXTENSION(11)
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GL_EXTENSION(12)
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GL_EXTENSION(13)
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GL_EXTENSION(14)
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GL_EXTENSION(15)
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GL_EXTENSION(16)
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GL_EXTENSION(17)
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GL_EXTENSION(18)
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GL_EXTENSION(19)
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GL_EXTENSION(20)
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GL_EXTENSION(21)
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GL_EXTENSION(22)
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GL_EXTENSION(23)
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GL_EXTENSION(24)
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GL_EXTENSION(25)
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GL_EXTENSION(26)
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GL_EXTENSION(27)
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GL_EXTENSION(28)
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GL_EXTENSION(29)
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GL_EXTENSION(30)
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GL_EXTENSION(31)
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GL_EXTENSION(32)
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GL_EXTENSION(33)
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GL_EXTENSION(34)
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GL_EXTENSION(35)
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GL_EXTENSION(36)
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GL_EXTENSION(37)
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GL_EXTENSION(38)
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GL_EXTENSION(39)
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GL_EXTENSION(40)
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GL_EXTENSION(41)
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GL_EXTENSION(42)
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GL_EXTENSION(43)
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GL_EXTENSION(44)
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GL_EXTENSION(45)
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GL_EXTENSION(46)
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GL_EXTENSION(47)
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GL_EXTENSION(48)
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GL_EXTENSION(49)
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GL_EXTENSION(50)
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GL_EXTENSION(51)
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GL_EXTENSION(52)
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GL_EXTENSION(53)
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GL_EXTENSION(54)
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GL_EXTENSION(55)
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GL_EXTENSION(56)
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GL_EXTENSION(57)
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GL_EXTENSION(58)
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GL_EXTENSION(59)
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GL_EXTENSION(60)
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GL_EXTENSION(61)
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GL_EXTENSION(62)
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GL_EXTENSION(63)
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extern const __eglMustCastToProperFunctionPointerType gExtensionForwarders[MAX_NUMBER_OF_GL_EXTENSIONS] = {
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GL_EXTENSION_NAME(0), GL_EXTENSION_NAME(1), GL_EXTENSION_NAME(2), GL_EXTENSION_NAME(3),
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GL_EXTENSION_NAME(4), GL_EXTENSION_NAME(5), GL_EXTENSION_NAME(6), GL_EXTENSION_NAME(7),
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GL_EXTENSION_NAME(8), GL_EXTENSION_NAME(9), GL_EXTENSION_NAME(10), GL_EXTENSION_NAME(11),
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GL_EXTENSION_NAME(12), GL_EXTENSION_NAME(13), GL_EXTENSION_NAME(14), GL_EXTENSION_NAME(15),
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GL_EXTENSION_NAME(16), GL_EXTENSION_NAME(17), GL_EXTENSION_NAME(18), GL_EXTENSION_NAME(19),
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GL_EXTENSION_NAME(20), GL_EXTENSION_NAME(21), GL_EXTENSION_NAME(22), GL_EXTENSION_NAME(23),
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GL_EXTENSION_NAME(24), GL_EXTENSION_NAME(25), GL_EXTENSION_NAME(26), GL_EXTENSION_NAME(27),
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GL_EXTENSION_NAME(28), GL_EXTENSION_NAME(29), GL_EXTENSION_NAME(30), GL_EXTENSION_NAME(31),
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GL_EXTENSION_NAME(32), GL_EXTENSION_NAME(33), GL_EXTENSION_NAME(34), GL_EXTENSION_NAME(35),
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GL_EXTENSION_NAME(36), GL_EXTENSION_NAME(37), GL_EXTENSION_NAME(38), GL_EXTENSION_NAME(39),
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GL_EXTENSION_NAME(40), GL_EXTENSION_NAME(41), GL_EXTENSION_NAME(42), GL_EXTENSION_NAME(43),
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GL_EXTENSION_NAME(44), GL_EXTENSION_NAME(45), GL_EXTENSION_NAME(46), GL_EXTENSION_NAME(47),
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GL_EXTENSION_NAME(48), GL_EXTENSION_NAME(49), GL_EXTENSION_NAME(50), GL_EXTENSION_NAME(51),
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GL_EXTENSION_NAME(52), GL_EXTENSION_NAME(53), GL_EXTENSION_NAME(54), GL_EXTENSION_NAME(55),
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GL_EXTENSION_NAME(56), GL_EXTENSION_NAME(57), GL_EXTENSION_NAME(58), GL_EXTENSION_NAME(59),
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GL_EXTENSION_NAME(60), GL_EXTENSION_NAME(61), GL_EXTENSION_NAME(62), GL_EXTENSION_NAME(63)
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};
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#undef GL_EXTENSION_NAME
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#undef GL_EXTENSION
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#undef API_ENTRY
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#undef CALL_GL_API
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// ----------------------------------------------------------------------------
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}; // namespace android
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// ----------------------------------------------------------------------------
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