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feat(OpenGL): lab1-benchmark

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iridiumR 2023-05-23 01:22:41 +08:00
parent 6cad5afdb8
commit 8cc47cdf2e
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58
OpenGL/lab1-benchmark/Makefile Normal file
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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}/*

311
OpenGL/lab1-benchmark/include/KHR/khrplatform.h Normal file
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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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OpenGL/lab1-benchmark/include/glad/glad.h Normal file
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OpenGL/lab1-benchmark/src/glad.cpp Normal file
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160
OpenGL/lab1-benchmark/src/main.cpp Normal file
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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);
}