| /* |
| ** Copyright 2009, The Android Open Source Project |
| ** |
| ** Licensed under the Apache License, Version 2.0 (the "License"); |
| ** you may not use this file except in compliance with the License. |
| ** You may obtain a copy of the License at |
| ** |
| ** http://www.apache.org/licenses/LICENSE-2.0 |
| ** |
| ** Unless required by applicable law or agreed to in writing, software |
| ** distributed under the License is distributed on an "AS IS" BASIS, |
| ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| ** See the License for the specific language governing permissions and |
| ** limitations under the License. |
| */ |
| |
| #include <ctype.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| |
| #include <cutils/log.h> |
| |
| #include "hooks.h" |
| |
| // ---------------------------------------------------------------------------- |
| namespace android { |
| // ---------------------------------------------------------------------------- |
| |
| #undef API_ENTRY |
| #undef CALL_GL_API |
| #undef GL_EXTENSION |
| #undef GL_EXTENSION_NAME |
| |
| #if defined(__arm__) |
| |
| #ifdef HAVE_ARM_TLS_REGISTER |
| #define GET_TLS(reg) \ |
| "mrc p15, 0, " #reg ", c13, c0, 3 \n" |
| #else |
| #define GET_TLS(reg) \ |
| "mov " #reg ", #0xFFFF0FFF \n" \ |
| "ldr " #reg ", [" #reg ", #-15] \n" |
| #endif |
| |
| #define API_ENTRY(_api) __attribute__((naked)) _api |
| |
| #define CALL_GL_EXTENSION_API(_api) \ |
| asm volatile( \ |
| GET_TLS(r12) \ |
| "ldr r12, [r12, %[tls]] \n" \ |
| "cmp r12, #0 \n" \ |
| "ldrne r12, [r12, %[api]] \n" \ |
| "cmpne r12, #0 \n" \ |
| "bxne r12 \n" \ |
| "bx lr \n" \ |
| : \ |
| : [tls] "J"(TLS_SLOT_OPENGL_API*4), \ |
| [api] "J"(__builtin_offsetof(gl_hooks_t, \ |
| ext.extensions[_api])) \ |
| : \ |
| ); |
| |
| #define GL_EXTENSION_NAME(_n) __glExtFwd##_n |
| |
| #define GL_EXTENSION(_n) \ |
| void API_ENTRY(GL_EXTENSION_NAME(_n))() { \ |
| CALL_GL_EXTENSION_API(_n); \ |
| } |
| |
| |
| #else |
| |
| #define GL_EXTENSION_NAME(_n) NULL |
| |
| #define GL_EXTENSION(_n) |
| |
| #warning "eglGetProcAddress() partially supported on this architecture" |
| |
| #endif |
| |
| GL_EXTENSION(0) |
| GL_EXTENSION(1) |
| GL_EXTENSION(2) |
| GL_EXTENSION(3) |
| GL_EXTENSION(4) |
| GL_EXTENSION(5) |
| GL_EXTENSION(6) |
| GL_EXTENSION(7) |
| GL_EXTENSION(8) |
| GL_EXTENSION(9) |
| GL_EXTENSION(10) |
| GL_EXTENSION(11) |
| GL_EXTENSION(12) |
| GL_EXTENSION(13) |
| GL_EXTENSION(14) |
| GL_EXTENSION(15) |
| |
| GL_EXTENSION(16) |
| GL_EXTENSION(17) |
| GL_EXTENSION(18) |
| GL_EXTENSION(19) |
| GL_EXTENSION(20) |
| GL_EXTENSION(21) |
| GL_EXTENSION(22) |
| GL_EXTENSION(23) |
| GL_EXTENSION(24) |
| GL_EXTENSION(25) |
| GL_EXTENSION(26) |
| GL_EXTENSION(27) |
| GL_EXTENSION(28) |
| GL_EXTENSION(29) |
| GL_EXTENSION(30) |
| GL_EXTENSION(31) |
| |
| GL_EXTENSION(32) |
| GL_EXTENSION(33) |
| GL_EXTENSION(34) |
| GL_EXTENSION(35) |
| GL_EXTENSION(36) |
| GL_EXTENSION(37) |
| GL_EXTENSION(38) |
| GL_EXTENSION(39) |
| GL_EXTENSION(40) |
| GL_EXTENSION(41) |
| GL_EXTENSION(42) |
| GL_EXTENSION(43) |
| GL_EXTENSION(44) |
| GL_EXTENSION(45) |
| GL_EXTENSION(46) |
| GL_EXTENSION(47) |
| |
| GL_EXTENSION(48) |
| GL_EXTENSION(49) |
| GL_EXTENSION(50) |
| GL_EXTENSION(51) |
| GL_EXTENSION(52) |
| GL_EXTENSION(53) |
| GL_EXTENSION(54) |
| GL_EXTENSION(55) |
| GL_EXTENSION(56) |
| GL_EXTENSION(57) |
| GL_EXTENSION(58) |
| GL_EXTENSION(59) |
| GL_EXTENSION(60) |
| GL_EXTENSION(61) |
| GL_EXTENSION(62) |
| GL_EXTENSION(63) |
| |
| extern const __eglMustCastToProperFunctionPointerType gExtensionForwarders[MAX_NUMBER_OF_GL_EXTENSIONS] = { |
| GL_EXTENSION_NAME(0), GL_EXTENSION_NAME(1), GL_EXTENSION_NAME(2), GL_EXTENSION_NAME(3), |
| GL_EXTENSION_NAME(4), GL_EXTENSION_NAME(5), GL_EXTENSION_NAME(6), GL_EXTENSION_NAME(7), |
| GL_EXTENSION_NAME(8), GL_EXTENSION_NAME(9), GL_EXTENSION_NAME(10), GL_EXTENSION_NAME(11), |
| GL_EXTENSION_NAME(12), GL_EXTENSION_NAME(13), GL_EXTENSION_NAME(14), GL_EXTENSION_NAME(15), |
| GL_EXTENSION_NAME(16), GL_EXTENSION_NAME(17), GL_EXTENSION_NAME(18), GL_EXTENSION_NAME(19), |
| GL_EXTENSION_NAME(20), GL_EXTENSION_NAME(21), GL_EXTENSION_NAME(22), GL_EXTENSION_NAME(23), |
| GL_EXTENSION_NAME(24), GL_EXTENSION_NAME(25), GL_EXTENSION_NAME(26), GL_EXTENSION_NAME(27), |
| GL_EXTENSION_NAME(28), GL_EXTENSION_NAME(29), GL_EXTENSION_NAME(30), GL_EXTENSION_NAME(31), |
| GL_EXTENSION_NAME(32), GL_EXTENSION_NAME(33), GL_EXTENSION_NAME(34), GL_EXTENSION_NAME(35), |
| GL_EXTENSION_NAME(36), GL_EXTENSION_NAME(37), GL_EXTENSION_NAME(38), GL_EXTENSION_NAME(39), |
| GL_EXTENSION_NAME(40), GL_EXTENSION_NAME(41), GL_EXTENSION_NAME(42), GL_EXTENSION_NAME(43), |
| GL_EXTENSION_NAME(44), GL_EXTENSION_NAME(45), GL_EXTENSION_NAME(46), GL_EXTENSION_NAME(47), |
| GL_EXTENSION_NAME(48), GL_EXTENSION_NAME(49), GL_EXTENSION_NAME(50), GL_EXTENSION_NAME(51), |
| GL_EXTENSION_NAME(52), GL_EXTENSION_NAME(53), GL_EXTENSION_NAME(54), GL_EXTENSION_NAME(55), |
| GL_EXTENSION_NAME(56), GL_EXTENSION_NAME(57), GL_EXTENSION_NAME(58), GL_EXTENSION_NAME(59), |
| GL_EXTENSION_NAME(60), GL_EXTENSION_NAME(61), GL_EXTENSION_NAME(62), GL_EXTENSION_NAME(63) |
| }; |
| |
| #undef GL_EXTENSION_NAME |
| #undef GL_EXTENSION |
| #undef API_ENTRY |
| #undef CALL_GL_API |
| |
| // ---------------------------------------------------------------------------- |
| }; // namespace android |
| // ---------------------------------------------------------------------------- |
| |