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357 lines
14 KiB
357 lines
14 KiB
/*
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** Copyright 2007, 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 <errno.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <log/log.h>
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#include <cutils/properties.h>
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#include <GLES/gl.h>
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#include <GLES/glext.h>
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#include "../hooks.h"
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#include "../egl_impl.h"
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using namespace android;
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// ----------------------------------------------------------------------------
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// extensions for the framework
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// ----------------------------------------------------------------------------
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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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void glColorPointerBounds(GLint size, GLenum type, GLsizei stride,
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const GLvoid *ptr, GLsizei /*count*/) {
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glColorPointer(size, type, stride, ptr);
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}
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void glNormalPointerBounds(GLenum type, GLsizei stride,
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const GLvoid *pointer, GLsizei /*count*/) {
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glNormalPointer(type, stride, pointer);
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}
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void glTexCoordPointerBounds(GLint size, GLenum type,
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GLsizei stride, const GLvoid *pointer, GLsizei /*count*/) {
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glTexCoordPointer(size, type, stride, pointer);
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}
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void glVertexPointerBounds(GLint size, GLenum type,
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GLsizei stride, const GLvoid *pointer, GLsizei /*count*/) {
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glVertexPointer(size, type, stride, pointer);
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}
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void GL_APIENTRY glPointSizePointerOESBounds(GLenum type,
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GLsizei stride, const GLvoid *pointer, GLsizei /*count*/) {
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glPointSizePointerOES(type, stride, pointer);
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}
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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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glMatrixIndexPointerOES(size, type, stride, pointer);
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}
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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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glWeightPointerOES(size, type, stride, pointer);
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}
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// ----------------------------------------------------------------------------
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// Actual GL entry-points
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// ----------------------------------------------------------------------------
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#undef API_ENTRY
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#undef CALL_GL_API
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#undef CALL_GL_API_INTERNAL_CALL
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#undef CALL_GL_API_INTERNAL_SET_RETURN_VALUE
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#undef CALL_GL_API_INTERNAL_DO_RETURN
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#undef CALL_GL_API_RETURN
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#if USE_SLOW_BINDING
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#define API_ENTRY(_api) _api
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#define CALL_GL_API_INTERNAL_CALL(_api, ...) \
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gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \
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if (_c) return _c->_api(__VA_ARGS__);
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#define CALL_GL_API_INTERNAL_SET_RETURN_VALUE return 0;
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// This stays blank, since void functions will implicitly return, and
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// all of the other functions will return 0 based on the previous macro.
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#define CALL_GL_API_INTERNAL_DO_RETURN
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#elif defined(__arm__)
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#define GET_TLS(reg) "mrc p15, 0, " #reg ", c13, c0, 3 \n"
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#define API_ENTRY(_api) __attribute__((naked,noinline)) _api
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#define CALL_GL_API_INTERNAL_CALL(_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 pc, [r12, %[api]] \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, gl._api)) \
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: "r0", "r1", "r2", "r3", "r12" \
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);
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#define CALL_GL_API_INTERNAL_SET_RETURN_VALUE \
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asm volatile( \
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"mov r0, #0 \n" \
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: \
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: \
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: "r0" \
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);
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#define CALL_GL_API_INTERNAL_DO_RETURN \
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asm volatile( \
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"bx lr \n" \
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: \
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: \
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: "r0" \
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);
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#elif defined(__aarch64__)
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#define API_ENTRY(_api) __attribute__((naked,noinline)) _api
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#define CALL_GL_API_INTERNAL_CALL(_api, ...) \
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asm volatile( \
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"mrs x16, tpidr_el0\n" \
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"ldr x16, [x16, %[tls]]\n" \
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"cbz x16, 1f\n" \
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"ldr x16, [x16, %[api]]\n" \
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"br x16\n" \
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"1:\n" \
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: \
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: [tls] "i" (TLS_SLOT_OPENGL_API * sizeof(void*)), \
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[api] "i" (__builtin_offsetof(gl_hooks_t, gl._api)) \
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: "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7", "x16" \
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);
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#define CALL_GL_API_INTERNAL_SET_RETURN_VALUE \
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asm volatile( \
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"mov w0, wzr \n" \
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: \
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: \
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: "w0" \
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);
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#define CALL_GL_API_INTERNAL_DO_RETURN \
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asm volatile( \
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"ret \n" \
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: \
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: \
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: \
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);
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#elif defined(__i386__)
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#define API_ENTRY(_api) __attribute__((naked,noinline)) _api
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#define CALL_GL_API_INTERNAL_CALL(_api, ...) \
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__asm__ volatile( \
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"mov %%gs:0, %%eax\n" \
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"mov %P[tls](%%eax), %%eax\n" \
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"test %%eax, %%eax\n" \
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"je 1f\n" \
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"jmp *%P[api](%%eax)\n" \
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"1:\n" \
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: \
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: [tls] "i" (TLS_SLOT_OPENGL_API*sizeof(void*)), \
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[api] "i" (__builtin_offsetof(gl_hooks_t, gl._api)) \
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: "cc", "%eax" \
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);
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#define CALL_GL_API_INTERNAL_SET_RETURN_VALUE \
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__asm__ volatile( \
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"xor %%eax, %%eax\n" \
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: \
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: \
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: "%eax" \
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);
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#define CALL_GL_API_INTERNAL_DO_RETURN \
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__asm__ volatile( \
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"ret\n" \
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: \
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: \
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: \
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);
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#elif defined(__x86_64__)
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#define API_ENTRY(_api) __attribute__((naked,noinline)) _api
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#define CALL_GL_API_INTERNAL_CALL(_api, ...) \
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__asm__ volatile( \
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"mov %%fs:0, %%rax\n" \
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"mov %P[tls](%%rax), %%rax\n" \
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"test %%rax, %%rax\n" \
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"je 1f\n" \
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"jmp *%P[api](%%rax)\n" \
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"1:\n" \
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: \
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: [tls] "i" (TLS_SLOT_OPENGL_API*sizeof(void*)), \
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[api] "i" (__builtin_offsetof(gl_hooks_t, gl._api)) \
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: "cc", "%rdi", "%rsi", "%rdx", "%rcx", "%r8", "%r9", \
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"%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", \
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"%xmm6", "%xmm7" \
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);
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#define CALL_GL_API_INTERNAL_SET_RETURN_VALUE \
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__asm__ volatile( \
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"xor %%eax, %%eax\n" \
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: \
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: \
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: "%eax" \
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);
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#define CALL_GL_API_INTERNAL_DO_RETURN \
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__asm__ volatile( \
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"retq\n" \
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: \
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: \
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: \
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);
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#elif defined(__mips64)
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#define API_ENTRY(_api) __attribute__((naked,noinline)) _api
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// t0: $12
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// fn: $25
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// tls: $3
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// v0: $2
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#define CALL_GL_API_INTERNAL_CALL(_api, ...) \
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asm volatile( \
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".set push\n\t" \
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".set noreorder\n\t" \
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"rdhwr $3, $29\n\t" \
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"ld $12, %[OPENGL_API]($3)\n\t" \
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"beqz $12, 1f\n\t" \
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" move $25, $ra\n\t" \
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"ld $12, %[API]($12)\n\t" \
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"beqz $12, 1f\n\t" \
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" nop\n\t" \
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"move $25, $12\n\t" \
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"1:\n\t" \
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"jalr $0, $25\n\t" \
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" move $2, $0\n\t" \
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".set pop\n\t" \
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: \
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: [OPENGL_API] "I"(TLS_SLOT_OPENGL_API*sizeof(void*)),\
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[API] "I"(__builtin_offsetof(gl_hooks_t, gl._api)) \
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: "$2", "$3", "$4", "$5", "$6", "$7", "$8", "$9", \
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"$10", "$11", "$12", "$25" \
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);
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#define CALL_GL_API_INTERNAL_SET_RETURN_VALUE
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#define CALL_GL_API_INTERNAL_DO_RETURN
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#elif defined(__mips__)
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#define API_ENTRY(_api) __attribute__((naked,noinline)) _api
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// t0: $8
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// fn: $25
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// tls: $3
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// v0: $2
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#define CALL_GL_API_INTERNAL_CALL(_api, ...) \
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asm volatile( \
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".set push\n\t" \
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".set noreorder\n\t" \
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".set mips32r2\n\t" \
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"rdhwr $3, $29\n\t" \
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"lw $3, %[OPENGL_API]($3)\n\t" \
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"beqz $3, 1f\n\t" \
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" move $25,$ra\n\t" \
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"lw $3, %[API]($3)\n\t" \
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"beqz $3, 1f\n\t" \
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" nop\n\t" \
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"move $25, $3\n\t" \
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"1:\n\t" \
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"jalr $0, $25\n\t" \
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" move $2, $0\n\t" \
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".set pop\n\t" \
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: \
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: [OPENGL_API] "I"(TLS_SLOT_OPENGL_API*4), \
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[API] "I"(__builtin_offsetof(gl_hooks_t, gl._api)) \
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: "$2", "$3", "$4", "$5", "$6", "$7", "$8", "$25" \
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);
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#define CALL_GL_API_INTERNAL_SET_RETURN_VALUE
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#define CALL_GL_API_INTERNAL_DO_RETURN
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#endif
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#define CALL_GL_API(_api, ...) \
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CALL_GL_API_INTERNAL_CALL(_api, __VA_ARGS__) \
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CALL_GL_API_INTERNAL_DO_RETURN
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#define CALL_GL_API_RETURN(_api, ...) \
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CALL_GL_API_INTERNAL_CALL(_api, __VA_ARGS__) \
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CALL_GL_API_INTERNAL_SET_RETURN_VALUE \
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CALL_GL_API_INTERNAL_DO_RETURN
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extern "C" {
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#pragma GCC diagnostic ignored "-Wunused-parameter"
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#include "gl_api.in"
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#include "glext_api.in"
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#pragma GCC diagnostic warning "-Wunused-parameter"
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}
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#undef API_ENTRY
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#undef CALL_GL_API
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#undef CALL_GL_API_INTERNAL_CALL
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#undef CALL_GL_API_INTERNAL_SET_RETURN_VALUE
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#undef CALL_GL_API_INTERNAL_DO_RETURN
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#undef CALL_GL_API_RETURN
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/*
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* glGetString() is special because we expose some extensions in the wrapper
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*/
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extern "C" const GLubyte * __glGetString(GLenum name);
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const GLubyte * glGetString(GLenum name) {
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const GLubyte * ret = egl_get_string_for_current_context(name);
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if (ret == NULL) {
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gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl;
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ret = _c->glGetString(name);
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}
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return ret;
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}
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