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本帖最后由 mochifz 于 2025-1-10 00:20 编辑
更新日记
1、修改ENABLE_FILE宏启用读取着色器
2、修改ENABLE_MESSAGEBOX宏启用消息框显示错误
3、修改DISABLE_VERTICAL_SYNC宏禁用垂直同步
4、添加ENABLE_PRINT_FPS宏启用控制台打印
[Patch] 纯文本查看 复制代码 --- screen.c
+++ screen1.c
@@ -1,5 +1,10 @@
-//tcc screen.c -lGDI32 -lOPENGL32 -lUSER32 -run
-#define UNICODE 1
+//tcc -DUNICODE -DENABLE_FILE -DENABLE_MESSAGEBOX -DDISABLE_VERTICAL_SYNC -DENABLE_PRINT_FPS screen.c -lGDI32 -lOPENGL32 -lUSER32
+/*
+ 1、修改ENABLE_FILE宏启用读取着色器
+ 2、修改ENABLE_MESSAGEBOX宏启用消息框显示错误
+ 3、修改DISABLE_VERTICAL_SYNC宏禁用垂直同步
+ 4、添加ENABLE_PRINT_FPS宏启用控制台打印
+*/
#include <windows.h>
#include <GL/gl.h>
#include <stdio.h>
@@ -44,12 +49,14 @@
PFNGLSHADERSOURCEPROC ShaderSource;
PFNGLCOMPILESHADERPROC CompileShader;
PFNGLGETSHADERIVPROC GetShaderiv;
+#ifdef ENABLE_MESSAGEBOX
PFNGLGETSHADERINFOLOGPROC GetShaderInfoLog;
+ PFNGLGETPROGRAMINFOLOGPROC GetProgramInfoLog;
+#endif
PFNGLCREATEPROGRAMPROC CreateProgram;
PFNGLATTACHSHADERPROC AttachShader;
PFNGLLINKPROGRAMPROC LinkProgram;
PFNGLGETPROGRAMIVPROC GetProgramiv;
- PFNGLGETPROGRAMINFOLOGPROC GetProgramInfoLog;
PFNGLUSEPROGRAMPROC UseProgram;
PFNGLDELETESHADERPROC DeleteShader;
PFNGLGENVERTEXARRAYSPROC GenVertexArrays;
@@ -60,19 +67,23 @@
PFNGLGETUNIFORMLOCATIONPROC GetUniformLocation;
PFNGLUNIFORM2FVPROC Uniform2fv;
PFNGLUNIFORM1FPROC Uniform1f;
+#ifdef DISABLE_VERTICAL_SYNC
PFNWGLSWAPINTERVALEXTPROC wglSwapIntervalEXT;
+#endif
};
} gl;
#define glCreateShader gl.CreateShader
#define glShaderSource gl.ShaderSource
#define glCompileShader gl.CompileShader
#define glGetShaderiv gl.GetShaderiv
-#define glGetShaderInfoLog gl.GetShaderInfoLog
+#ifdef ENABLE_MESSAGEBOX
+ #define glGetShaderInfoLog gl.GetShaderInfoLog
+ #define glGetProgramInfoLog gl.GetProgramInfoLog
+#endif
#define glCreateProgram gl.CreateProgram
#define glAttachShader gl.AttachShader
#define glLinkProgram gl.LinkProgram
#define glGetProgramiv gl.GetProgramiv
-#define glGetProgramInfoLog gl.GetProgramInfoLog
#define glUseProgram gl.UseProgram
#define glDeleteShader gl.DeleteShader
#define glGenVertexArrays gl.GenVertexArrays
@@ -83,13 +94,24 @@
#define glGetUniformLocation gl.GetUniformLocation
#define glUniform2fv gl.Uniform2fv
#define glUniform1f gl.Uniform1f
-char* names[] = {"glCreateShader", "glShaderSource", "glCompileShader", "glGetShaderiv", "glGetShaderInfoLog", "glCreateProgram", "glAttachShader", "glLinkProgram", "glGetProgramiv", "glGetProgramInfoLog", "glUseProgram", "glDeleteShader", "glGenVertexArrays", "glBindVertexArray", "glDeleteProgram", "glDeleteVertexArrays", "glDeleteBuffers", "glGetUniformLocation", "glUniform2fv", "glUniform1f", "wglSwapIntervalEXT"};
+char* names[] = {"glCreateShader", "glShaderSource", "glCompileShader", "glGetShaderiv",
+#ifdef ENABLE_MESSAGEBOX
+ "glGetShaderInfoLog",
+ "glGetProgramInfoLog",
+#endif
+ "glCreateProgram", "glAttachShader", "glLinkProgram", "glGetProgramiv", "glUseProgram", "glDeleteShader", "glGenVertexArrays", "glBindVertexArray", "glDeleteProgram", "glDeleteVertexArrays", "glDeleteBuffers", "glGetUniformLocation", "glUniform2fv", "glUniform1f",
+#ifdef DISABLE_VERTICAL_SYNC
+ "wglSwapIntervalEXT"
+#endif
+ };
GLuint shaderProgram;
GLint iFrame, iFrameRate, iTime, iResolution, iMouse;
GLuint vertexArray;
-GLfloat Time = 0, Resolution[2], Mouse[2];
+GLfloat Resolution[2], Mouse[2];
const char* vertexShaderSource = "vec2 positions[4] = vec2[4] (vec2 (-1.0, 1.0),vec2 (-1.0, -1.0),vec2 (1.0, 1.0),vec2 (1.0, -1.0));void main() {gl_Position = vec4 (positions[gl_VertexID % 4], 0.0, 1.0);}";
-char* buffer = NULL;
+#ifdef ENABLE_FILE
+ char* buffer = NULL;
+#endif
char* fragmentShaderSource = "uniform float iTime;uniform vec2 iResolution;uniform vec2 iMouse;void mainImage( out vec4 fragColor, in vec2 fragCoord ){vec2 uv = fragCoord.xy / iResolution;vec2 mousePos = iMouse.xy / iResolution.xy;if (length(uv - mousePos) < 0.01){fragColor = vec4(sin(iTime + uv.x * 10.0) * 0.5 + 0.5, 0.0, 0.0, 1.0);}else{fragColor = vec4(uv.x, uv.y, 0.0, 1.0);}}void main() {mainImage(gl_FragColor, gl_FragCoord.xy);}";
void CompileShader (const char* source, GLenum shaderType, GLuint* shader) {
*shader = glCreateShader (shaderType);
@@ -97,29 +119,32 @@
glCompileShader (*shader);
GLint success;
glGetShaderiv (*shader, GL_COMPILE_STATUS, &success);
+#ifdef ENABLE_MESSAGEBOX
if (!success) {
char infoLog[512];
glGetShaderInfoLog (*shader, 512, NULL, infoLog);
MessageBoxA (NULL, infoLog, "Shader Compilation Error", MB_OK | MB_ICONERROR);
}
+#endif
}
int quit = 0;
-LARGE_INTEGER frequency;
-LARGE_INTEGER lastTime;
-LARGE_INTEGER currentTime;
void InitOpenGL() {
for (int i = 0; i < ARRAY_SIZE (names); i++) {
gl.ptr[i] = wglGetProcAddress (names[i]);
if (!gl.ptr[i]) {
quit = 1;
+#ifdef ENABLE_MESSAGEBOX
MessageBoxA (NULL, "Failed to get OpenGL function pointers!", "Error", MB_OK | MB_ICONERROR);
+#endif
return;
}
}
- //gl.wglSwapIntervalEXT(0);
- glClearColor (0.0f, 0.0f, 0.0f, 1.0f);
+#ifdef DISABLE_VERTICAL_SYNC
+ gl.wglSwapIntervalEXT (0);
+#endif
GLuint vertexShader, fragmentShader;
CompileShader (vertexShaderSource, GL_VERTEX_SHADER, &vertexShader);
+#ifdef ENABLE_FILE
LPSTR cmdLine = GetCommandLineA();
char* firstArgument = NULL;
char* spacePos = strchr (cmdLine, ' ');
@@ -134,7 +159,9 @@
FILE* file = fopen (firstArgument, "r");
if (file == NULL) {
quit = 1;
+#ifdef ENABLE_MESSAGEBOX
MessageBoxA (NULL, "Can't open the file!", "Error", MB_OK | MB_ICONERROR);
+#endif
return;
}
fseek (file, 0, SEEK_END);
@@ -146,6 +173,7 @@
fclose (file);
fragmentShaderSource = buffer;
}
+#endif
CompileShader (fragmentShaderSource, GL_FRAGMENT_SHADER, &fragmentShader);
shaderProgram = glCreateProgram();
glAttachShader (shaderProgram, vertexShader);
@@ -154,9 +182,11 @@
GLint success;
glGetProgramiv (shaderProgram, GL_LINK_STATUS, &success);
if (!success) {
+#ifdef ENABLE_MESSAGEBOX
char infoLog[512];
glGetProgramInfoLog (shaderProgram, 512, NULL, infoLog);
MessageBoxA (NULL, infoLog, "Shader Linking Error", MB_OK | MB_ICONERROR);
+#endif
quit = 1;
return;
}
@@ -170,34 +200,46 @@
glDeleteShader (fragmentShader);
glGenVertexArrays (1, &vertexArray);
glBindVertexArray (vertexArray);
- QueryPerformanceFrequency (&frequency);
- QueryPerformanceCounter (&lastTime);
}
void RenderScene() {
- QueryPerformanceCounter (¤tTime);
- static int FrameRate = 0, Frame = 0;
- static float elapsedTime = 0.0f;
- QueryPerformanceCounter (¤tTime);
- elapsedTime += (float) (currentTime.QuadPart - lastTime.QuadPart) / (float) frequency.QuadPart;
- FrameRate++;
+ static int Frame = 0;
+ static float FrameRate = 0;
+ static float maxFPS = 0.0f;
+ static float minFPS = 9999999999999.0f;
Frame++;
- glUniform1f (iFrame, (float) Frame);
- if (elapsedTime >= 1.0f) {
- glUniform1f (iFrameRate, (float) FrameRate);
- FrameRate = 0;
- elapsedTime = 0.0f;
- Time++;
+ static int initNow = 0;
+ static int lastNow = 0;
+ LARGE_INTEGER counter;
+ QueryPerformanceCounter (&counter);
+ int now = counter.QuadPart;
+ if (initNow == 0)
+ initNow = now;
+ now -= initNow;
+ if (lastNow == 0)
+ lastNow = now;
+ if (now - lastNow > 10000000) {
+ FrameRate = (float) Frame / ( (float) now / 10000000.0f);
+ glUniform1f (iFrameRate, FrameRate);
+ lastNow = now;
+#ifdef ENABLE_PRINT_FPS
+ if (FrameRate > maxFPS)
+ maxFPS = FrameRate;
+ if (FrameRate < minFPS)
+ minFPS = FrameRate;
+ printf ("Time: %.2f, Frame: %ld, FPS: %.2f, Max FPS: %.2f, Min FPS: %.2f\n", now / 10000000.0f, Frame, FrameRate, maxFPS, minFPS);
+#endif
}
- lastTime = currentTime;
- glUniform1f (iTime, Time + elapsedTime);
+ glUniform1f (iFrame, (float) Frame);
+ glUniform1f (iTime, (float) now / 10000000.0f);
glUniform2fv (iResolution, 1, &Resolution[0]);
glUniform2fv (iMouse, 1, &Mouse[0]);
- glClear (GL_COLOR_BUFFER_BIT);
glDrawArrays (GL_TRIANGLE_STRIP, 0, 4);
}
void QuitOpenGL() {
+#ifdef ENABLE_FILE
if (buffer)
free (buffer);
+#endif
glDeleteProgram (shaderProgram);
glDeleteVertexArrays (1, &vertexArray);
}
@@ -228,11 +270,16 @@
return 0;
}
#define ClassName TEXT("GL")
+#if ENABLE_PRINT_FPS
+int main() {
+ HINSTANCE hInstance = NULL;
+#else
#ifdef UNICODE
int WINAPI wWinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow) {
#else
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR pCmdLine, int nCmdShow) {
#endif
+#endif
int screenWidth = GetSystemMetrics (SM_CXSCREEN);
int screenHeight = GetSystemMetrics (SM_CYSCREEN);
WNDCLASS wc = {0};
@@ -241,12 +288,16 @@
wc.lpszClassName = ClassName;
wc.hCursor = LoadCursor (NULL, IDC_ARROW);
if (!RegisterClass (&wc)) {
+#ifdef ENABLE_MESSAGEBOX
MessageBoxA (NULL, "Window Registration Failed!", "Error", MB_ICONEXCLAMATION | MB_OK);
+#endif
return 0;
}
HWND hwnd = CreateWindowEx (WS_EX_APPWINDOW, ClassName, ClassName, WS_POPUP, 0, 0, screenWidth, screenHeight, NULL, NULL, wc.hInstance, NULL);
if (!hwnd) {
+#ifdef ENABLE_MESSAGEBOX
MessageBoxA (NULL, "Window Creation Failed!", "Error", MB_ICONEXCLAMATION | MB_OK);
+#endif
return 0;
}
PIXELFORMATDESCRIPTOR pfd = {
@@ -278,7 +329,6 @@
wglMakeCurrent (hdc, NULL);
wglDeleteContext (hglrc);
ReleaseDC (hwnd, hdc);
- PostQuitMessage (0);
UnregisterClass (ClassName, wc.hInstance);
return 0;
}
[C] 纯文本查看 复制代码 #define UNICODE 1
#include <windows.h>
#include <GL/gl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
GLuint shaderProgram;
GLint iFrame, iFrameRate, iTime, iResolution, iMouse;
GLuint vertexArray;
GLfloat Time = 0, Resolution[2], Mouse[2];
const char* vertexShaderSource = "vec2 positions[4] = vec2[4] (vec2 (-1.0, 1.0),vec2 (-1.0, -1.0),vec2 (1.0, 1.0),vec2 (1.0, -1.0));void main() {gl_Position = vec4 (positions[gl_VertexID % 4], 0.0, 1.0);}";
char* buffer = NULL;
char* fragmentShaderSource = "uniform float iTime;uniform vec2 iResolution;uniform vec2 iMouse;void mainImage( out vec4 fragColor, in vec2 fragCoord ){vec2 uv = fragCoord.xy / iResolution;vec2 mousePos = iMouse.xy / iResolution.xy;if (length(uv - mousePos) < 0.01){fragColor = vec4(sin(iTime + uv.x * 10.0) * 0.5 + 0.5, 0.0, 0.0, 1.0);}else{fragColor = vec4(uv.x, uv.y, 0.0, 1.0);}}void main() {mainImage(gl_FragColor, gl_FragCoord.xy);}";
void CompileShader (const char* source, GLenum shaderType, GLuint* shader) {
*shader = glCreateShader (shaderType);
glShaderSource (*shader, 1, &source, NULL);
glCompileShader (*shader);
GLint success;
glGetShaderiv (*shader, GL_COMPILE_STATUS, &success);
if (!success) {
char infoLog[512];
glGetShaderInfoLog (*shader, 512, NULL, infoLog);
MessageBoxA (NULL, infoLog, "Shader Compilation Error", MB_OK | MB_ICONERROR);
}
}
int quit = 0;
void InitOpenGL() {
GLuint vertexShader, fragmentShader;
CompileShader (vertexShaderSource, GL_VERTEX_SHADER, &vertexShader);
LPSTR cmdLine = GetCommandLineA();
char* firstArgument = NULL;
char* spacePos = strchr (cmdLine, ' ');
if (spacePos != NULL && *spacePos != '\0') {
*spacePos = '\0';
firstArgument = spacePos + 1;
spacePos = strchr (firstArgument, ' ');
if (spacePos != NULL)
*spacePos = '\0';
}
if (firstArgument != NULL && *firstArgument != '\0') {
FILE* file = fopen (firstArgument, "r");
if (file == NULL) {
quit = 1;
MessageBoxA (NULL, "Can't open the file!", "Error", MB_OK | MB_ICONERROR);
return;
}
fseek (file, 0, SEEK_END);
size_t fileSize = ftell (file);
fseek (file, 0, SEEK_SET);
buffer = (char*) malloc (fileSize + 1);
fread (buffer, fileSize, 1, file);
buffer[fileSize] = '\0';
fclose (file);
fragmentShaderSource = buffer;
}
CompileShader (fragmentShaderSource, GL_FRAGMENT_SHADER, &fragmentShader);
shaderProgram = glCreateProgram();
glAttachShader (shaderProgram, vertexShader);
glAttachShader (shaderProgram, fragmentShader);
glLinkProgram (shaderProgram);
GLint success;
glGetProgramiv (shaderProgram, GL_LINK_STATUS, &success);
if (!success) {
char infoLog[512];
glGetProgramInfoLog (shaderProgram, 512, NULL, infoLog);
MessageBoxA (NULL, infoLog, "Shader Linking Error", MB_OK | MB_ICONERROR);
quit = 1;
return;
}
glUseProgram (shaderProgram);
iFrame = glGetUniformLocation (shaderProgram, "iFrame");
iFrameRate = glGetUniformLocation (shaderProgram, "iFrameRate");
iTime = glGetUniformLocation (shaderProgram, "iTime");
iResolution = glGetUniformLocation (shaderProgram, "iResolution");
iMouse = glGetUniformLocation (shaderProgram, "iMouse");
glDeleteShader (vertexShader);
glDeleteShader (fragmentShader);
glGenVertexArrays (1, &vertexArray);
glBindVertexArray (vertexArray);
}
void RenderScene() {
static int Frame = 0;
static float FrameRate = 0;
Frame++;
static int initNow = 0;
static int lastNow = 0;
LARGE_INTEGER counter;
QueryPerformanceCounter (&counter);
int now = counter.QuadPart;
if (initNow == 0)
initNow = now;
now -= initNow;
if (lastNow == 0)
lastNow = now;
if (now - lastNow > 10000000) {
FrameRate = (float) Frame / ( (float) now / 10000000.0f);
glUniform1f (iFrameRate, FrameRate);
lastNow = now;
}
glUniform1f (iFrame, (float) Frame);
glUniform1f (iTime, (float) now / 10000000.0f);
glUniform2fv (iResolution, 1, &Resolution[0]);
glUniform2fv (iMouse, 1, &Mouse[0]);
glDrawArrays (GL_TRIANGLE_STRIP, 0, 4);
}
void QuitOpenGL() {
if (buffer)
free (buffer);
glDeleteProgram (shaderProgram);
glDeleteVertexArrays (1, &vertexArray);
}
LRESULT CALLBACK WndProc (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) {
switch (msg) {
case WM_SIZE:
GLint w = LOWORD (lParam), h = HIWORD (lParam);
glViewport (0, 0, w, h);
Resolution[0] = w;
Resolution[1] = h;
break;
case WM_MOUSEMOVE:
Mouse[0] = LOWORD (lParam);
Mouse[1] = Resolution[1] - HIWORD (lParam);
break;
case WM_CLOSE:
quit = 1;
break;
case WM_KEYDOWN:
switch (wParam) {
case VK_ESCAPE:
quit = 1;
break;
}
default:
return DefWindowProc (hwnd, msg, wParam, lParam);
}
return 0;
}
#define ClassName TEXT("GL")
#ifdef UNICODE
int WINAPI wWinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow) {
#else
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR pCmdLine, int nCmdShow) {
#endif
int screenWidth = GetSystemMetrics (SM_CXSCREEN);
int screenHeight = GetSystemMetrics (SM_CYSCREEN);
WNDCLASS wc = {0};
wc.hInstance = hInstance;
wc.lpfnWndProc = WndProc;
wc.lpszClassName = ClassName;
wc.hCursor = LoadCursor (NULL, IDC_ARROW);
if (!RegisterClass (&wc)) {
MessageBoxA (NULL, "Window Registration Failed!", "Error", MB_ICONEXCLAMATION | MB_OK);
return 0;
}
HWND hwnd = CreateWindowEx (WS_EX_APPWINDOW, ClassName, ClassName, WS_POPUP, 0, 0, screenWidth, screenHeight, NULL, NULL, wc.hInstance, NULL);
if (!hwnd) {
MessageBoxA (NULL, "Window Creation Failed!", "Error", MB_ICONEXCLAMATION | MB_OK);
return 0;
}
PIXELFORMATDESCRIPTOR pfd = {
sizeof (PIXELFORMATDESCRIPTOR),
1,
PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER,
PFD_TYPE_RGBA,
32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32, 0, 0, 0, 32, 0, 0, 0, 0
};
HDC hdc = GetDC (hwnd);
int pf = ChoosePixelFormat (hdc, &pfd);
SetPixelFormat (hdc, pf, &pfd);
HGLRC hglrc = wglCreateContext (hdc);
wglMakeCurrent (hdc, hglrc);
InitOpenGL();
MSG msg;
ShowWindow (hwnd, SW_SHOWDEFAULT);
while (!quit) {
while (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE)) {
if (msg.message == WM_QUIT)
quit = 1;
TranslateMessage (&msg);
DispatchMessage (&msg);
}
RenderScene();
SwapBuffers (hdc);
}
QuitOpenGL();
wglMakeCurrent (hdc, NULL);
wglDeleteContext (hglrc);
ReleaseDC (hwnd, hdc);
UnregisterClass (ClassName, wc.hInstance);
PostQuitMessage (0);
return 0;
}
着色器源代码可以到www.shadertoy.com寻找移植 |
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发表于 2025-1-8 03:58
