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comparison dmglrender.cpp @ 63:d6ffc59bb84d

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Move more of the SDL and GL setup code to the renderer class.
author Matti Hamalainen <ccr@tnsp.org>
date Sat, 14 Dec 2019 20:13:32 +0200
parents baccf2044289
children 71f6c5cc8eec
comparison
equal deleted inserted replaced
62:baccf2044289 63:d6ffc59bb84d
101 } 101 }
102 return ok; 102 return ok;
103 } 103 }
104 104
105 105
106 bool DMGLSimpleRenderer::initRender1(void) 106 bool DMGLSimpleRenderer::initRenderer1(const char *title,
107 const int width, const int height,
108 const int sdlWindowHPos, const int sdlWindowVPos,
109 const int sdlFlags)
107 { 110 {
108 // Set GL attributes 111 // Set GL attributes
109 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2); 112 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
110 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1); 113 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
111 SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE); 114 SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
117 120
118 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24); 121 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
119 //SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE, 32); 122 //SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE, 32);
120 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); 123 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
121 124
122 return true; 125 // Attempt to create a window
123 } 126 if (!DMSimpleRenderer::initRenderer1(
124 127 title,
125 128 width, height,
126 bool DMGLSimpleRenderer::initRender2(SDL_Window *window) 129 sdlWindowHPos, sdlWindowVPos,
127 { 130 sdlFlags | SDL_WINDOW_OPENGL))
131 return false;
132
128 // Create OpenGL context 133 // Create OpenGL context
129 if ((glContext = SDL_GL_CreateContext(window)) == NULL) 134 if ((sdlGLContext = SDL_GL_CreateContext(sdlWindow)) == NULL)
130 { 135 {
131 dmError("Unable to create SDL OpenGL context: %s\n", 136 dmError("Unable to create SDL OpenGL context: %s\n",
132 SDL_GetError()); 137 SDL_GetError());
133 return false; 138 return false;
134 } 139 }
158 163
159 return status; 164 return status;
160 } 165 }
161 166
162 167
163 bool DMGLSimpleRenderer::initRender3(const int width, const int height) 168 bool DMGLSimpleRenderer::initRenderer2(void)
164 { 169 {
165 // Dump some information 170 // Dump some information
166 dmMsg("GL_VENDOR : %s\n", glGetString(GL_VENDOR)); 171 dmMsg("GL_VENDOR : %s\n", glGetString(GL_VENDOR));
167 dmMsg("GL_RENDERER : %s\n", glGetString(GL_RENDERER)); 172 dmMsg("GL_RENDERER : %s\n", glGetString(GL_RENDERER));
168 dmMsg("GL_VERSION : %s\n", glGetString(GL_VERSION)); 173 dmMsg("GL_VERSION : %s\n", glGetString(GL_VERSION));
169 174
170 if (!checkErrors()) 175 if (!checkErrors())
171 return false; 176 return false;
172 177
173 // Setup the window and view port 178 // Setup the window and view port
174 glViewport(0, 0, width, height); 179 glViewport(0, 0, windowWidth, windowHeight);
175 180
176 glMatrixMode(GL_PROJECTION); 181 glMatrixMode(GL_PROJECTION);
177 glLoadIdentity(); 182 glLoadIdentity();
178 183
179 gluPerspective(45.0f, GLfloat(width) / GLfloat(height), 0.1f, 1000.0f); 184 gluPerspective(45.0f, GLfloat(windowWidth) / GLfloat(windowHeight), 0.1f, 1000.0f);
180 185
181 glMatrixMode(GL_MODELVIEW); 186 glMatrixMode(GL_MODELVIEW);
182 glLoadIdentity(); 187 glLoadIdentity();
183 188
184 // Enable back face culling 189 // Enable back face culling
229 } 234 }
230 235
231 236
232 void DMGLSimpleRenderer::shutdownRenderer(void) 237 void DMGLSimpleRenderer::shutdownRenderer(void)
233 { 238 {
234 if (glContext != NULL) 239 if (sdlGLContext != NULL)
235 SDL_GL_DeleteContext(glContext); 240 SDL_GL_DeleteContext(sdlGLContext);
241
242 DMSimpleRenderer::shutdownRenderer();
236 } 243 }
237 244
238 245
239 void DMGLSimpleRenderer::drawModel(const DMSimpleScene &scene, const DMModel &model, const float time) 246 void DMGLSimpleRenderer::drawModel(const DMSimpleScene &scene, const DMModel &model, const float time)
240 { 247 {