port from perforce

2026-04-18 22:31:51 +02:00
commit 8d0ab5b7cc
8409 changed files with 3972376 additions and 0 deletions
--- a/space4k/src/glgraphics.h
+++ b/space4k/src/glgraphics.h
@@ -0,0 +1,152 @@
+#pragma once
+
+#pragma data_seg(".glCreateProgram")
+static const char* glCreateProgram = "glCreateProgram";
+
+#pragma data_seg(".glCreateShader")
+static const char* glCreateShader = "glCreateShader";
+
+#pragma data_seg(".glShaderSource")
+static const char* glShaderSource = "glShaderSource";
+
+#pragma data_seg(".glCompileShader")
+static const char* glCompileShader = "glCompileShader";
+
+#pragma data_seg(".glAttachShader")
+static const char* glAttachShader = "glAttachShader";
+
+#pragma data_seg(".glLinkProgram")
+static const char* glLinkProgram = "glLinkProgram";
+
+#pragma data_seg(".glUseProgram")
+static const char* glUseProgram = "glUseProgram";
+
+#pragma data_seg(".glActiveTexture")
+static const char* glActiveTexture = "glActiveTexture";
+
+#pragma code_seg(".UseShader")
+inline void UseShader(GLuint shader)
+{
+	_asm
+	{
+		mov		eax, shader
+		push	shaders[eax*4]
+		push	dword ptr [glUseProgram]
+
+		call	dword ptr [wglGetProcAddress]
+		call    eax
+	}
+}
+
+#pragma code_seg(".CreateShader")
+inline void CreateShaders()
+{
+		_asm
+		{
+			xor			esi, esi
+
+shaderloop:
+			push        8B30h 
+			push        dword ptr [glCreateShader]   
+			push        8B31h 
+			push        dword ptr [glCreateShader]   
+			push        dword ptr [glCreateProgram] 
+
+			call        dword ptr [wglGetProcAddress] 
+			call        eax  
+			mov         ebx,eax 
+
+			call        dword ptr [wglGetProcAddress] 
+			call        eax  
+			mov         edi,eax 
+
+			call        dword ptr [wglGetProcAddress] 
+			call        eax  
+			mov         edx,eax  
+			lea         eax, fsh[esi*4] 
+
+			push        ebx   
+			push        dword ptr [glLinkProgram] 
+
+			push        edx
+			push        ebx  
+			push        dword ptr [glAttachShader]  
+
+			push        edx  
+			push        dword ptr [glCompileShader] 
+
+			push        0    
+			push        eax  
+			push        1    
+			push        edx 
+			push        dword ptr [glShaderSource]  
+
+			push        edi
+			push        ebx  
+			push        dword ptr [glAttachShader]  
+
+			push        edi  
+			push        dword ptr [glCompileShader] 
+
+			push        0    
+			push        offset vertexShader
+			push        1    
+			push        edi 
+			push        dword ptr [glShaderSource]  
+
+			mov			edi, dword ptr [wglGetProcAddress]
+			call        edi
+			call        eax  
+			call        edi
+			call        eax 
+			call        edi
+			call        eax  
+			call        edi
+			call        eax  
+			call        edi
+			call        eax  
+			call        edi
+			call        eax 
+			call        edi
+			call        eax  
+
+			mov         dword ptr shaders[esi*4], ebx
+			inc			esi
+			test		esi, shaderCount
+			jz			shaderLoop
+	}
+}
+
+#pragma code_seg(".CreateOGL")
+inline void CreateOGL()
+{
+	_asm
+	{
+		push	hdc
+		push	offset pfd
+		push	offset pfd
+		push	hdc
+		call	dword ptr [ChoosePixelFormat]
+		push	eax
+		push	hdc
+		call	dword ptr [SetPixelFormat]
+		call	dword ptr [wglCreateContext]
+		push	eax
+		push	hdc
+		call	dword ptr [wglMakeCurrent]
+	}
+}
+
+#pragma code_seg(".DrawFrame")
+void DrawFrame()
+{	
+	glLoadIdentity();
+	glTranslated(1, 1, x_Sin(time)*3);
+	glRotatef(-time * 10, 0, 1, 0);
+	UseShader(WORLD_GLSL);
+	glNormal3f(WIDTH, HEIGHT, ASPECT);
+	glColor3f(time, 0, 0);
+	glRects(-1, -1, 1, 1);
+
+	SwapBuffers(hdc);
+}