feat(OpenGL): lab1-benchmark

This commit is contained in:
iridiumR 2023-05-23 01:22:41 +08:00
parent 6cad5afdb8
commit 8cc47cdf2e
5 changed files with 5980 additions and 0 deletions

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#源文件目录
SRC_DIR := ./src
#头文件目录
INC_DIR := ./include
#输出文件目录
OUT_DIR := ./build
#目标文件(中间文件)目录
OBJ_DIR :=./build
#链接选项
LDFLAGS := $(shell pkg-config --static --libs glfw3)
#编译工具链
CC := g++
#输出文件命名
OUT := $(OUT_DIR)/lab1-benchmark
#增加所有头文件所在的目录
# INC_DIR += ./include/glad
# INC_DIR += ./include/KHR
#获取头文件目录
CPP_FLAGS := $(foreach dir, $(INC_DIR), -I$(wildcard $(dir)))
#方法一: 将所有源文件的文件目录添加进来就不用每增加一个文件都修改一下makefile文件
#SRC_DIR += ./src/
#获取所有cpp文件名
CPP_SRCS := $(foreach dir, $(SRC_DIR), $(wildcard $(dir)/*.cpp))
#方法二:将增加的文件(带目录)增加到源文件数组中,此操作不用增加源文件目录
# CPP_SRCS += ./src/sub_path1/*.cpp
# CPP_SRCS += ./src/sub_path2/*.cpp
# CPP_SRCS += ./src/sub_path....../*.cpp
# CPP_SRCS += ./src/sub_pathn/*.cpp
#生成所有的目标文件名
OBJ := $(addprefix $(OBJ_DIR)/, $(notdir $(CPP_SRCS:.cpp=.o)))
# 最终目标文件的生成makefile 会将第一个target设为最终生成的目标文件
# 【当然这里可以不是可执行文件,它也可以是.o文件】链接过程
# 这条语句的完全写法应该是:
# ./OUT/xxx.OUT: prerequisites1.o prerequisites2.o prerequisites3.o ...
# g++ prerequisites1.o prerequisites2.o prerequisites3.o ... -o ./OUT/xxx.OUT
$(OUT):$(OBJ)
$(CC) $^ -o $@ $(LDFLAGS)
#将所有的.cpp文件加载到当前的路径中
vpath %.cpp $(sort $(dir $(CPP_SRCS)))
#将所有的源文件编译生成响应的目标文件
$(OBJ_DIR)/%.o:%.cpp
$(CC) $(CPP_FLAGS) -c $< -o $@
run:$(OUT)
./$(OUT)
.PHONY:clean
clean:
rm -rf ./${OUT_DIR}/*
rm -rf ./${OBJ_DIR}/*

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#ifndef __khrplatform_h_
#define __khrplatform_h_
/*
** Copyright (c) 2008-2018 The Khronos Group Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and/or associated documentation files (the
** "Materials"), to deal in the Materials without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Materials, and to
** permit persons to whom the Materials are furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be included
** in all copies or substantial portions of the Materials.
**
** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
*/
/* Khronos platform-specific types and definitions.
*
* The master copy of khrplatform.h is maintained in the Khronos EGL
* Registry repository at https://github.com/KhronosGroup/EGL-Registry
* The last semantic modification to khrplatform.h was at commit ID:
* 67a3e0864c2d75ea5287b9f3d2eb74a745936692
*
* Adopters may modify this file to suit their platform. Adopters are
* encouraged to submit platform specific modifications to the Khronos
* group so that they can be included in future versions of this file.
* Please submit changes by filing pull requests or issues on
* the EGL Registry repository linked above.
*
*
* See the Implementer's Guidelines for information about where this file
* should be located on your system and for more details of its use:
* http://www.khronos.org/registry/implementers_guide.pdf
*
* This file should be included as
* #include <KHR/khrplatform.h>
* by Khronos client API header files that use its types and defines.
*
* The types in khrplatform.h should only be used to define API-specific types.
*
* Types defined in khrplatform.h:
* khronos_int8_t signed 8 bit
* khronos_uint8_t unsigned 8 bit
* khronos_int16_t signed 16 bit
* khronos_uint16_t unsigned 16 bit
* khronos_int32_t signed 32 bit
* khronos_uint32_t unsigned 32 bit
* khronos_int64_t signed 64 bit
* khronos_uint64_t unsigned 64 bit
* khronos_intptr_t signed same number of bits as a pointer
* khronos_uintptr_t unsigned same number of bits as a pointer
* khronos_ssize_t signed size
* khronos_usize_t unsigned size
* khronos_float_t signed 32 bit floating point
* khronos_time_ns_t unsigned 64 bit time in nanoseconds
* khronos_utime_nanoseconds_t unsigned time interval or absolute time in
* nanoseconds
* khronos_stime_nanoseconds_t signed time interval in nanoseconds
* khronos_boolean_enum_t enumerated boolean type. This should
* only be used as a base type when a client API's boolean type is
* an enum. Client APIs which use an integer or other type for
* booleans cannot use this as the base type for their boolean.
*
* Tokens defined in khrplatform.h:
*
* KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values.
*
* KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0.
* KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0.
*
* Calling convention macros defined in this file:
* KHRONOS_APICALL
* KHRONOS_APIENTRY
* KHRONOS_APIATTRIBUTES
*
* These may be used in function prototypes as:
*
* KHRONOS_APICALL void KHRONOS_APIENTRY funcname(
* int arg1,
* int arg2) KHRONOS_APIATTRIBUTES;
*/
#if defined(__SCITECH_SNAP__) && !defined(KHRONOS_STATIC)
# define KHRONOS_STATIC 1
#endif
/*-------------------------------------------------------------------------
* Definition of KHRONOS_APICALL
*-------------------------------------------------------------------------
* This precedes the return type of the function in the function prototype.
*/
#if defined(KHRONOS_STATIC)
/* If the preprocessor constant KHRONOS_STATIC is defined, make the
* header compatible with static linking. */
# define KHRONOS_APICALL
#elif defined(_WIN32)
# define KHRONOS_APICALL __declspec(dllimport)
#elif defined (__SYMBIAN32__)
# define KHRONOS_APICALL IMPORT_C
#elif defined(__ANDROID__)
# define KHRONOS_APICALL __attribute__((visibility("default")))
#else
# define KHRONOS_APICALL
#endif
/*-------------------------------------------------------------------------
* Definition of KHRONOS_APIENTRY
*-------------------------------------------------------------------------
* This follows the return type of the function and precedes the function
* name in the function prototype.
*/
#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__)
/* Win32 but not WinCE */
# define KHRONOS_APIENTRY __stdcall
#else
# define KHRONOS_APIENTRY
#endif
/*-------------------------------------------------------------------------
* Definition of KHRONOS_APIATTRIBUTES
*-------------------------------------------------------------------------
* This follows the closing parenthesis of the function prototype arguments.
*/
#if defined (__ARMCC_2__)
#define KHRONOS_APIATTRIBUTES __softfp
#else
#define KHRONOS_APIATTRIBUTES
#endif
/*-------------------------------------------------------------------------
* basic type definitions
*-----------------------------------------------------------------------*/
#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__)
/*
* Using <stdint.h>
*/
#include <stdint.h>
typedef int32_t khronos_int32_t;
typedef uint32_t khronos_uint32_t;
typedef int64_t khronos_int64_t;
typedef uint64_t khronos_uint64_t;
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
/*
* To support platform where unsigned long cannot be used interchangeably with
* inptr_t (e.g. CHERI-extended ISAs), we can use the stdint.h intptr_t.
* Ideally, we could just use (u)intptr_t everywhere, but this could result in
* ABI breakage if khronos_uintptr_t is changed from unsigned long to
* unsigned long long or similar (this results in different C++ name mangling).
* To avoid changes for existing platforms, we restrict usage of intptr_t to
* platforms where the size of a pointer is larger than the size of long.
*/
#if defined(__SIZEOF_LONG__) && defined(__SIZEOF_POINTER__)
#if __SIZEOF_POINTER__ > __SIZEOF_LONG__
#define KHRONOS_USE_INTPTR_T
#endif
#endif
#elif defined(__VMS ) || defined(__sgi)
/*
* Using <inttypes.h>
*/
#include <inttypes.h>
typedef int32_t khronos_int32_t;
typedef uint32_t khronos_uint32_t;
typedef int64_t khronos_int64_t;
typedef uint64_t khronos_uint64_t;
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
#elif defined(_WIN32) && !defined(__SCITECH_SNAP__)
/*
* Win32
*/
typedef __int32 khronos_int32_t;
typedef unsigned __int32 khronos_uint32_t;
typedef __int64 khronos_int64_t;
typedef unsigned __int64 khronos_uint64_t;
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
#elif defined(__sun__) || defined(__digital__)
/*
* Sun or Digital
*/
typedef int khronos_int32_t;
typedef unsigned int khronos_uint32_t;
#if defined(__arch64__) || defined(_LP64)
typedef long int khronos_int64_t;
typedef unsigned long int khronos_uint64_t;
#else
typedef long long int khronos_int64_t;
typedef unsigned long long int khronos_uint64_t;
#endif /* __arch64__ */
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
#elif 0
/*
* Hypothetical platform with no float or int64 support
*/
typedef int khronos_int32_t;
typedef unsigned int khronos_uint32_t;
#define KHRONOS_SUPPORT_INT64 0
#define KHRONOS_SUPPORT_FLOAT 0
#else
/*
* Generic fallback
*/
#include <stdint.h>
typedef int32_t khronos_int32_t;
typedef uint32_t khronos_uint32_t;
typedef int64_t khronos_int64_t;
typedef uint64_t khronos_uint64_t;
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
#endif
/*
* Types that are (so far) the same on all platforms
*/
typedef signed char khronos_int8_t;
typedef unsigned char khronos_uint8_t;
typedef signed short int khronos_int16_t;
typedef unsigned short int khronos_uint16_t;
/*
* Types that differ between LLP64 and LP64 architectures - in LLP64,
* pointers are 64 bits, but 'long' is still 32 bits. Win64 appears
* to be the only LLP64 architecture in current use.
*/
#ifdef KHRONOS_USE_INTPTR_T
typedef intptr_t khronos_intptr_t;
typedef uintptr_t khronos_uintptr_t;
#elif defined(_WIN64)
typedef signed long long int khronos_intptr_t;
typedef unsigned long long int khronos_uintptr_t;
#else
typedef signed long int khronos_intptr_t;
typedef unsigned long int khronos_uintptr_t;
#endif
#if defined(_WIN64)
typedef signed long long int khronos_ssize_t;
typedef unsigned long long int khronos_usize_t;
#else
typedef signed long int khronos_ssize_t;
typedef unsigned long int khronos_usize_t;
#endif
#if KHRONOS_SUPPORT_FLOAT
/*
* Float type
*/
typedef float khronos_float_t;
#endif
#if KHRONOS_SUPPORT_INT64
/* Time types
*
* These types can be used to represent a time interval in nanoseconds or
* an absolute Unadjusted System Time. Unadjusted System Time is the number
* of nanoseconds since some arbitrary system event (e.g. since the last
* time the system booted). The Unadjusted System Time is an unsigned
* 64 bit value that wraps back to 0 every 584 years. Time intervals
* may be either signed or unsigned.
*/
typedef khronos_uint64_t khronos_utime_nanoseconds_t;
typedef khronos_int64_t khronos_stime_nanoseconds_t;
#endif
/*
* Dummy value used to pad enum types to 32 bits.
*/
#ifndef KHRONOS_MAX_ENUM
#define KHRONOS_MAX_ENUM 0x7FFFFFFF
#endif
/*
* Enumerated boolean type
*
* Values other than zero should be considered to be true. Therefore
* comparisons should not be made against KHRONOS_TRUE.
*/
typedef enum {
KHRONOS_FALSE = 0,
KHRONOS_TRUE = 1,
KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM
} khronos_boolean_enum_t;
#endif /* __khrplatform_h_ */

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#include "glad/glad.h"
#include <GLFW/glfw3.h>
#include <chrono>
#include <iostream>
void framebuffer_size_callback(GLFWwindow *window, int width, int height);
void processInput(GLFWwindow *window);
// settings
const unsigned int SCR_WIDTH = 800;
const unsigned int SCR_HEIGHT = 600;
void init() {
glClearColor(0.0, 0.0, 0.0, 0.0); // 设置清空颜色为黑色
}
void display(int mode) {
glClear(GL_COLOR_BUFFER_BIT); // 清空颜色缓冲区
switch (mode) {
case 1:
// Flat模式着色面模式独立三角形
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glShadeModel(GL_FLAT);
glBegin(GL_TRIANGLES);
break;
case 2:
// Flat模式着色面模式独立三角形
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glShadeModel(GL_FLAT);
glBegin(GL_TRIANGLES);
break;
case 3:
// Flat模式着色点模式独立三角形
glPolygonMode(GL_FRONT_AND_BACK, GL_POINT);
glShadeModel(GL_FLAT);
glBegin(GL_TRIANGLES);
break;
case 4:
// Flat模式着色面模式三角形扇
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glShadeModel(GL_FLAT);
glBegin(GL_TRIANGLE_FAN);
case 5:
// Smooth模式着色各顶点颜色不同面模式独立三角形
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glShadeModel(GL_SMOOTH);
glBegin(GL_TRIANGLES);
break;
default:
break;
}
// 随机生成并绘制十万个三角形
if (mode != 5)
for (int i = 0; i < 100000; i++) {
glColor3f((float)rand() / RAND_MAX, (float)rand() / RAND_MAX,
(float)rand() / RAND_MAX);
glVertex3f((float)rand() / RAND_MAX * 2 - 1,
(float)rand() / RAND_MAX * 2 - 1,
(float)rand() / RAND_MAX * 2 - 1);
glVertex3f((float)rand() / RAND_MAX * 2 - 1,
(float)rand() / RAND_MAX * 2 - 1,
(float)rand() / RAND_MAX * 2 - 1);
glVertex3f((float)rand() / RAND_MAX * 2 - 1,
(float)rand() / RAND_MAX * 2 - 1,
(float)rand() / RAND_MAX * 2 - 1);
}
else
for (int i = 0; i < 100000; i++) {
glColor3f((float)rand() / RAND_MAX, (float)rand() / RAND_MAX,
(float)rand() / RAND_MAX);
glVertex3f((float)rand() / RAND_MAX * 2 - 1,
(float)rand() / RAND_MAX * 2 - 1,
(float)rand() / RAND_MAX * 2 - 1);
glColor3f((float)rand() / RAND_MAX, (float)rand() / RAND_MAX,
(float)rand() / RAND_MAX);
glVertex3f((float)rand() / RAND_MAX * 2 - 1,
(float)rand() / RAND_MAX * 2 - 1,
(float)rand() / RAND_MAX * 2 - 1);
glColor3f((float)rand() / RAND_MAX, (float)rand() / RAND_MAX,
(float)rand() / RAND_MAX);
glVertex3f((float)rand() / RAND_MAX * 2 - 1,
(float)rand() / RAND_MAX * 2 - 1,
(float)rand() / RAND_MAX * 2 - 1);
}
glEnd();
glFlush(); // 刷新绘图命令
}
int main(int argc, char **argv) {
if (argc != 2) {
std::cout << "Usage: " << argv[0] << " <mode>" << std::endl;
return -1;
}
int mode = atoi(argv[1]);
if (mode < 1 || mode > 5) {
std::cout << "Mode must be in [1, 5]" << std::endl;
return -1;
} else
std::cout << "Mode: " << mode << std::endl;
// 设置 glfw
glfwInit();
// 设置 OpenGL 版本为 3.3
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
// 设置 OpenGL 管线为兼容模式
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_COMPAT_PROFILE);
// 创建窗口
GLFWwindow *window = glfwCreateWindow(800, 600, "LearnOpenGL", NULL, NULL);
if (window == NULL) {
std::cout << "Failed to create GLFW window" << std::endl;
glfwTerminate();
return -1;
}
glfwMakeContextCurrent(window);
// 加载glad
if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
std::cout << "Failed to initialize GLAD" << std::endl;
return -1;
}
// 设置视口
glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
init();
unsigned long count = 0;
auto start = std::chrono::high_resolution_clock::now();
// 循环渲染
while (!glfwWindowShouldClose(window)) {
display(mode);
count++;
// 检查并调用事件,交换缓冲
glfwSwapBuffers(window);
glfwPollEvents();
}
auto end = std::chrono::high_resolution_clock::now();
std::chrono::duration<double> duration = end - start;
double timeTaken = duration.count();
std::cout << "Time taken: " << timeTaken << "s" << std::endl;
std::cout << "FPS: " << count / timeTaken << std::endl;
// 释放资源
glfwTerminate();
return 0;
}
// 处理输入
void processInput(GLFWwindow *window) {
if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
glfwSetWindowShouldClose(window, true);
}
// 窗口大小改变时回调该函数
void framebuffer_size_callback(GLFWwindow *window, int width, int height) {
glViewport(0, 0, width, height);
}