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130 lines
4.1 KiB
130 lines
4.1 KiB
/*
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* Copyright (C) 2011 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 "OpenGLESDispatch/GLESv1Dispatch.h"
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#include "OpenGLESDispatch/EGLDispatch.h"
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#include "OpenGLESDispatch/StaticDispatch.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define DEBUG 0
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#if DEBUG
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#define DPRINT(...) do { \
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if (!VERBOSE_CHECK(gles1emu)) VERBOSE_ENABLE(gles1emu); \
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VERBOSE_PRINT(gles1emu, __VA_ARGS__); \
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} while (0)
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#else
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#define DPRINT(...)
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#endif
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// An unimplemented function which prints out an error message.
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// To make it consistent with the guest, all GLES1 functions not supported by
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// the guest driver should be redirected to this function.
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void gles1_unimplemented() {
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fprintf(stderr, "Called unimplemented GLESv1 API\n");
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}
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#define DEFAULT_GLES_CM_LIB EMUGL_LIBNAME("GLES_CM_translator")
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#define DEFAULT_UNDERLYING_GLES_V2_LIB EMUGL_LIBNAME("GLES_V2_translator")
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// This section of code (also in GLDispatch.cpp)
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// initializes all GLESv1 functions to dummy ones;
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// that is, in case we are using a library that doesn't
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// have GLESv1, we will still have stubs available to
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// signal that they are unsupported on the host.
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#define RETURN_void return
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#define RETURN_GLboolean return GL_FALSE
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#define RETURN_GLint return 0
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#define RETURN_GLuint return 0U
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#define RETURN_GLenum return 0
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#define RETURN_int return 0
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#define RETURN_GLconstubyteptr return NULL
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#define RETURN_voidptr return NULL
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#define RETURN_(x) RETURN_ ## x
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#define DUMMY_MSG "Call to %s: host OpenGL driver does not support OpenGL ES v1. Skipping."
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#ifdef _WIN32
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#define DEFINE_DUMMY_FUNCTION(return_type, func_name, signature, args) \
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static return_type __stdcall gles1_dummy_##func_name signature { \
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fprintf(stderr, DUMMY_MSG, #func_name); \
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RETURN_(return_type); \
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}
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#define DEFINE_DUMMY_EXTENSION_FUNCTION(return_type, func_name, signature, args) \
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static return_type __stdcall gles1_dummy_##func_name signature { \
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fprintf(stderr, DUMMY_MSG, #func_name); \
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RETURN_(return_type); \
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}
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#else
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#define DEFINE_DUMMY_FUNCTION(return_type, func_name, signature, args) \
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static return_type gles1_dummy_##func_name signature { \
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fprintf(stderr, DUMMY_MSG, #func_name); \
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RETURN_(return_type); \
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}
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#define DEFINE_DUMMY_EXTENSION_FUNCTION(return_type, func_name, signature, args) \
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static return_type gles1_dummy_##func_name signature { \
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fprintf(stderr, DUMMY_MSG, #func_name); \
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RETURN_(return_type); \
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}
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#endif
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//
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// This function is called only once during initialiation before
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// any thread has been created - hence it should NOT be thread safe.
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//
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// macro to assign from static library
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#define ASSIGN_GLES1_STATIC(return_type,function_name,signature,callargs)\
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dispatch_table-> function_name = reinterpret_cast< function_name ## _t >( \
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translator::gles1::function_name); \
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if ((!dispatch_table-> function_name) && s_egl.eglGetProcAddress) \
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dispatch_table-> function_name = reinterpret_cast< function_name ## _t >( \
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s_egl.eglGetProcAddress(#function_name)); \
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bool gles1_dispatch_init(GLESv1Dispatch* dispatch_table) {
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if (dispatch_table->initialized) return true;
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LIST_GLES1_FUNCTIONS(ASSIGN_GLES1_STATIC, ASSIGN_GLES1_STATIC);
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dispatch_table->initialized = true;
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return true;
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}
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void *gles1_dispatch_get_proc_func(const char *name, void *userData)
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{
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void* func = NULL;
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func = gles1_dispatch_get_proc_func_static(name);
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// To make it consistent with the guest, redirect any unsupported functions
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// to gles1_unimplemented.
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if (!func) {
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func = (void *)gles1_unimplemented;
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}
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return func;
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}
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