diff options
Diffstat (limited to 'src/renderer')
-rw-r--r-- | src/renderer/gl.h | 7 | ||||
-rw-r--r-- | src/renderer/mesh.cpp | 109 | ||||
-rw-r--r-- | src/renderer/mesh.h | 62 | ||||
-rw-r--r-- | src/renderer/renderer.cpp | 635 | ||||
-rw-r--r-- | src/renderer/renderer.h | 114 | ||||
-rw-r--r-- | src/renderer/shader.cpp | 84 | ||||
-rw-r--r-- | src/renderer/shader.h | 58 | ||||
-rw-r--r-- | src/renderer/texture.cpp | 124 | ||||
-rw-r--r-- | src/renderer/texture.h | 52 | ||||
-rw-r--r-- | src/renderer/wrappers.h | 273 |
10 files changed, 1518 insertions, 0 deletions
diff --git a/src/renderer/gl.h b/src/renderer/gl.h new file mode 100644 index 0000000..4e98c42 --- /dev/null +++ b/src/renderer/gl.h | |||
@@ -0,0 +1,7 @@ | |||
1 | #ifndef GL_H_3EE4A268 | ||
2 | #define GL_H_3EE4A268 | ||
3 | |||
4 | #include <GL/glew.h> | ||
5 | #include <GLFW/glfw3.h> | ||
6 | |||
7 | #endif /* end of include guard: GL_H_3EE4A268 */ | ||
diff --git a/src/renderer/mesh.cpp b/src/renderer/mesh.cpp new file mode 100644 index 0000000..b06b723 --- /dev/null +++ b/src/renderer/mesh.cpp | |||
@@ -0,0 +1,109 @@ | |||
1 | #include "mesh.h" | ||
2 | #include <fstream> | ||
3 | #include <vector> | ||
4 | #include <map> | ||
5 | #include <glm/glm.hpp> | ||
6 | #include "util.h" | ||
7 | |||
8 | Mesh::Mesh(std::string filename) | ||
9 | { | ||
10 | std::ifstream meshfile(filename); | ||
11 | if (!meshfile.is_open()) | ||
12 | { | ||
13 | throw std::invalid_argument("Could not open mesh file"); | ||
14 | } | ||
15 | |||
16 | std::vector<glm::vec3> tempVertices; | ||
17 | std::vector<glm::vec2> tempUvs; | ||
18 | std::vector<glm::vec3> tempNormals; | ||
19 | |||
20 | std::vector<glm::vec3> outVertices; | ||
21 | std::vector<glm::vec2> outUvs; | ||
22 | std::vector<glm::vec3> outNormals; | ||
23 | std::map<element, unsigned short> elementIds; | ||
24 | std::vector<unsigned short> indices; | ||
25 | |||
26 | while (meshfile) | ||
27 | { | ||
28 | std::string linetype; | ||
29 | meshfile >> linetype; | ||
30 | |||
31 | if (linetype == "v") | ||
32 | { | ||
33 | glm::vec3 vertex; | ||
34 | meshfile >> vertex.x >> vertex.y >> vertex.z; | ||
35 | |||
36 | tempVertices.push_back(std::move(vertex)); | ||
37 | } else if (linetype == "vt") | ||
38 | { | ||
39 | glm::vec2 uv; | ||
40 | meshfile >> uv.x >> uv.y; | ||
41 | |||
42 | tempUvs.push_back(std::move(uv)); | ||
43 | } else if (linetype == "vn") | ||
44 | { | ||
45 | glm::vec3 normal; | ||
46 | meshfile >> normal.x >> normal.y >> normal.z; | ||
47 | |||
48 | tempNormals.push_back(std::move(normal)); | ||
49 | } else if (linetype == "f") | ||
50 | { | ||
51 | element elements[3]; | ||
52 | |||
53 | meshfile | ||
54 | >> elements[0].vertexId >> chlit('/') | ||
55 | >> elements[0].uvId >> chlit('/') | ||
56 | >> elements[0].normalId | ||
57 | >> elements[1].vertexId >> chlit('/') | ||
58 | >> elements[1].uvId >> chlit('/') | ||
59 | >> elements[1].normalId | ||
60 | >> elements[2].vertexId >> chlit('/') | ||
61 | >> elements[2].uvId >> chlit('/') | ||
62 | >> elements[2].normalId; | ||
63 | |||
64 | for (size_t i = 0; i < 3; i++) | ||
65 | { | ||
66 | if (!elementIds.count(elements[i])) | ||
67 | { | ||
68 | elementIds[elements[i]] = outVertices.size(); | ||
69 | |||
70 | outVertices.push_back(tempVertices[elements[i].vertexId - 1]); | ||
71 | outUvs.push_back(tempUvs[elements[i].uvId - 1]); | ||
72 | outNormals.push_back(tempNormals[elements[i].normalId - 1]); | ||
73 | } | ||
74 | |||
75 | indices.push_back(elementIds[elements[i]]); | ||
76 | } | ||
77 | } | ||
78 | } | ||
79 | |||
80 | glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer_.getId()); | ||
81 | glBufferData( | ||
82 | GL_ARRAY_BUFFER, | ||
83 | outVertices.size() * sizeof(glm::vec3), | ||
84 | outVertices.data(), | ||
85 | GL_STATIC_DRAW); | ||
86 | |||
87 | glBindBuffer(GL_ARRAY_BUFFER, uvBuffer_.getId()); | ||
88 | glBufferData( | ||
89 | GL_ARRAY_BUFFER, | ||
90 | outUvs.size() * sizeof(glm::vec2), | ||
91 | outUvs.data(), | ||
92 | GL_STATIC_DRAW); | ||
93 | |||
94 | glBindBuffer(GL_ARRAY_BUFFER, normalBuffer_.getId()); | ||
95 | glBufferData( | ||
96 | GL_ARRAY_BUFFER, | ||
97 | outNormals.size() * sizeof(glm::vec3), | ||
98 | outNormals.data(), | ||
99 | GL_STATIC_DRAW); | ||
100 | |||
101 | glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuffer_.getId()); | ||
102 | glBufferData( | ||
103 | GL_ELEMENT_ARRAY_BUFFER, | ||
104 | indices.size() * sizeof(unsigned short), | ||
105 | indices.data(), | ||
106 | GL_STATIC_DRAW); | ||
107 | |||
108 | indexCount_ = indices.size(); | ||
109 | } | ||
diff --git a/src/renderer/mesh.h b/src/renderer/mesh.h new file mode 100644 index 0000000..06bf65d --- /dev/null +++ b/src/renderer/mesh.h | |||
@@ -0,0 +1,62 @@ | |||
1 | #ifndef MESH_H_76B72E12 | ||
2 | #define MESH_H_76B72E12 | ||
3 | |||
4 | #include <string> | ||
5 | #include "gl.h" | ||
6 | #include "wrappers.h" | ||
7 | |||
8 | class Mesh { | ||
9 | public: | ||
10 | |||
11 | Mesh(std::string filename); | ||
12 | |||
13 | Mesh(const Mesh& other) = delete; | ||
14 | Mesh& operator=(const Mesh& other) = delete; | ||
15 | |||
16 | inline GLuint getVertexBufferId() const | ||
17 | { | ||
18 | return vertexBuffer_.getId(); | ||
19 | } | ||
20 | |||
21 | inline GLuint getUvBufferId() const | ||
22 | { | ||
23 | return uvBuffer_.getId(); | ||
24 | } | ||
25 | |||
26 | inline GLuint getNormalBufferId() const | ||
27 | { | ||
28 | return normalBuffer_.getId(); | ||
29 | } | ||
30 | |||
31 | inline GLuint getIndexBufferId() const | ||
32 | { | ||
33 | return indexBuffer_.getId(); | ||
34 | } | ||
35 | |||
36 | inline size_t getIndexCount() const | ||
37 | { | ||
38 | return indexCount_; | ||
39 | } | ||
40 | |||
41 | private: | ||
42 | |||
43 | struct element { | ||
44 | size_t vertexId; | ||
45 | size_t uvId; | ||
46 | size_t normalId; | ||
47 | |||
48 | bool operator<(const element& other) const | ||
49 | { | ||
50 | return std::tie(vertexId, uvId, normalId) < | ||
51 | std::tie(other.vertexId, other.uvId, other.normalId); | ||
52 | } | ||
53 | }; | ||
54 | |||
55 | GLBuffer vertexBuffer_; | ||
56 | GLBuffer uvBuffer_; | ||
57 | GLBuffer normalBuffer_; | ||
58 | GLBuffer indexBuffer_; | ||
59 | size_t indexCount_; | ||
60 | }; | ||
61 | |||
62 | #endif /* end of include guard: MESH_H_76B72E12 */ | ||
diff --git a/src/renderer/renderer.cpp b/src/renderer/renderer.cpp new file mode 100644 index 0000000..6eef2f3 --- /dev/null +++ b/src/renderer/renderer.cpp | |||
@@ -0,0 +1,635 @@ | |||
1 | #include "renderer.h" | ||
2 | #include "consts.h" | ||
3 | #include "game.h" | ||
4 | #include <glm/gtc/matrix_transform.hpp> | ||
5 | #include "texture.h" | ||
6 | |||
7 | // include stb_image | ||
8 | #define STB_IMAGE_IMPLEMENTATION | ||
9 | #define STBI_ONLY_PNG | ||
10 | #define STBI_ONLY_BMP | ||
11 | #include "stb_image.h" | ||
12 | |||
13 | void setFramebufferSize(GLFWwindow* w, int width, int height) | ||
14 | { | ||
15 | Game& game = *static_cast<Game*>(glfwGetWindowUserPointer(w)); | ||
16 | Renderer& renderer = game.getRenderer(); | ||
17 | |||
18 | renderer.width_ = width; | ||
19 | renderer.height_ = height; | ||
20 | |||
21 | renderer.bloomFb_ = {}; | ||
22 | renderer.bloomDepth_ = {}; | ||
23 | renderer.preBloomTex_ = {}; | ||
24 | renderer.bloomPassTex1_ = {}; | ||
25 | renderer.bloomPassTex2_ = {}; | ||
26 | |||
27 | renderer.initializeFramebuffers(); | ||
28 | } | ||
29 | |||
30 | bool Renderer::singletonInitialized_ = false; | ||
31 | |||
32 | Renderer::Window::Window() | ||
33 | { | ||
34 | // Initialize GLFW | ||
35 | if (!glfwInit()) | ||
36 | { | ||
37 | throw std::runtime_error("Failed to initialize GLFW"); | ||
38 | } | ||
39 | |||
40 | glfwWindowHint(GLFW_SAMPLES, 4); // 4x antialiasing | ||
41 | glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); // We want version 3.3 | ||
42 | glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3); | ||
43 | glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // Mac requires this | ||
44 | glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); | ||
45 | |||
46 | // Create a window | ||
47 | window_ = glfwCreateWindow(1024, 768, "Aromatherapy", nullptr, nullptr); | ||
48 | if (window_ == nullptr) | ||
49 | { | ||
50 | throw std::runtime_error("Failed to open GLFW window"); | ||
51 | } | ||
52 | |||
53 | glfwMakeContextCurrent(window_); | ||
54 | |||
55 | glewExperimental = true; // Needed in core profile | ||
56 | if (glewInit() != GLEW_OK) | ||
57 | { | ||
58 | throw std::runtime_error("Failed to initialize GLEW"); | ||
59 | } | ||
60 | |||
61 | glfwSetFramebufferSizeCallback(window_, &setFramebufferSize); | ||
62 | } | ||
63 | |||
64 | Renderer::Window::~Window() | ||
65 | { | ||
66 | glfwTerminate(); | ||
67 | } | ||
68 | |||
69 | Renderer::Renderer() : | ||
70 | monitor_("res/monitor-old.obj"), | ||
71 | ntscShader_("ntsc"), | ||
72 | finalShader_("final"), | ||
73 | blitShader_("blit"), | ||
74 | fillShader_("fill"), | ||
75 | bloom1Shader_("bloom1"), | ||
76 | bloom2Shader_("bloom2") | ||
77 | { | ||
78 | if (singletonInitialized_) | ||
79 | { | ||
80 | throw std::logic_error("Singleton renderer already initialized"); | ||
81 | } | ||
82 | |||
83 | singletonInitialized_ = true; | ||
84 | |||
85 | // Set up vertex array object | ||
86 | glBindVertexArray(vao_.getId()); | ||
87 | |||
88 | // Enable depth testing | ||
89 | glEnable(GL_DEPTH_TEST); | ||
90 | glDepthFunc(GL_LESS); | ||
91 | |||
92 | // Enable blending | ||
93 | glEnable(GL_BLEND); | ||
94 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); | ||
95 | |||
96 | // Set up the rendering buffers and textures | ||
97 | glfwGetFramebufferSize(window_.getHandle(), &width_, &height_); | ||
98 | |||
99 | initializeFramebuffers(); | ||
100 | |||
101 | // Load the vertices of a flat surface | ||
102 | GLfloat g_quad_vertex_buffer_data[] = { | ||
103 | -1.0f, -1.0f, 0.0f, | ||
104 | 1.0f, -1.0f, 0.0f, | ||
105 | -1.0f, 1.0f, 0.0f, | ||
106 | -1.0f, 1.0f, 0.0f, | ||
107 | 1.0f, -1.0f, 0.0f, | ||
108 | 1.0f, 1.0f, 0.0f, | ||
109 | }; | ||
110 | |||
111 | glBindBuffer(GL_ARRAY_BUFFER, quadBuffer_.getId()); | ||
112 | glBufferData( | ||
113 | GL_ARRAY_BUFFER, | ||
114 | sizeof(GLfloat) * 18, | ||
115 | g_quad_vertex_buffer_data, | ||
116 | GL_STATIC_DRAW); | ||
117 | |||
118 | // Load NTSC artifacts | ||
119 | int atdw, atdh; | ||
120 | unsigned char* artifactsData = | ||
121 | stbi_load("res/artifacts.bmp", &atdw, &atdh, 0, 3); | ||
122 | |||
123 | flipImageData(artifactsData, atdw, atdh, 3); | ||
124 | |||
125 | glBindTexture(GL_TEXTURE_2D, artifactsTex_.getId()); | ||
126 | glTexImage2D( | ||
127 | GL_TEXTURE_2D, | ||
128 | 0, | ||
129 | GL_RGB, | ||
130 | atdw, | ||
131 | atdh, | ||
132 | 0, | ||
133 | GL_RGB, | ||
134 | GL_UNSIGNED_BYTE, | ||
135 | artifactsData); | ||
136 | |||
137 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); | ||
138 | glTexParameteri( | ||
139 | GL_TEXTURE_2D, | ||
140 | GL_TEXTURE_MIN_FILTER, | ||
141 | GL_NEAREST_MIPMAP_NEAREST); | ||
142 | |||
143 | glGenerateMipmap(GL_TEXTURE_2D); | ||
144 | stbi_image_free(artifactsData); | ||
145 | |||
146 | // Load NTSC scanlines | ||
147 | unsigned char* scanlinesData = | ||
148 | stbi_load("res/scanlines_333.bmp", &atdw, &atdh, 0, 3); | ||
149 | |||
150 | flipImageData(scanlinesData, atdw, atdh, 3); | ||
151 | |||
152 | glBindTexture(GL_TEXTURE_2D, scanlinesTex_.getId()); | ||
153 | glTexImage2D( | ||
154 | GL_TEXTURE_2D, | ||
155 | 0, | ||
156 | GL_RGB, | ||
157 | atdw, | ||
158 | atdh, | ||
159 | 0, | ||
160 | GL_RGB, | ||
161 | GL_UNSIGNED_BYTE, | ||
162 | scanlinesData); | ||
163 | |||
164 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); | ||
165 | glTexParameteri( | ||
166 | GL_TEXTURE_2D, | ||
167 | GL_TEXTURE_MIN_FILTER, | ||
168 | GL_NEAREST_MIPMAP_NEAREST); | ||
169 | |||
170 | glGenerateMipmap(GL_TEXTURE_2D); | ||
171 | stbi_image_free(scanlinesData); | ||
172 | } | ||
173 | |||
174 | void Renderer::initializeFramebuffers() | ||
175 | { | ||
176 | // Set up the framebuffer | ||
177 | glBindFramebuffer(GL_FRAMEBUFFER, genericFb_.getId()); | ||
178 | GLenum DrawBuffers[1] = {GL_COLOR_ATTACHMENT0}; | ||
179 | glDrawBuffers(1, DrawBuffers); | ||
180 | |||
181 | // Set up the bloom framebuffer and depthbuffer | ||
182 | glBindFramebuffer(GL_FRAMEBUFFER, bloomFb_.getId()); | ||
183 | GLenum DrawBuffers2[1] = {GL_COLOR_ATTACHMENT1}; | ||
184 | glDrawBuffers(1, DrawBuffers2); | ||
185 | |||
186 | glBindRenderbuffer(GL_RENDERBUFFER, bloomDepth_.getId()); | ||
187 | glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, width_, height_); | ||
188 | glFramebufferRenderbuffer( | ||
189 | GL_FRAMEBUFFER, | ||
190 | GL_DEPTH_ATTACHMENT, | ||
191 | GL_RENDERBUFFER, | ||
192 | bloomDepth_.getId()); | ||
193 | |||
194 | // Set up the NTSC rendering buffers | ||
195 | glBindTexture(GL_TEXTURE_2D, renderPages_[0].getId()); | ||
196 | glTexImage2D( | ||
197 | GL_TEXTURE_2D, | ||
198 | 0, | ||
199 | GL_RGB, | ||
200 | GAME_WIDTH, | ||
201 | GAME_HEIGHT, | ||
202 | 0, | ||
203 | GL_RGB, | ||
204 | GL_UNSIGNED_BYTE, | ||
205 | 0); | ||
206 | |||
207 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); | ||
208 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); | ||
209 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | ||
210 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | ||
211 | |||
212 | glBindTexture(GL_TEXTURE_2D, renderPages_[1].getId()); | ||
213 | glTexImage2D( | ||
214 | GL_TEXTURE_2D, | ||
215 | 0, | ||
216 | GL_RGB, | ||
217 | GAME_WIDTH, | ||
218 | GAME_HEIGHT, | ||
219 | 0, | ||
220 | GL_RGB, | ||
221 | GL_UNSIGNED_BYTE, | ||
222 | 0); | ||
223 | |||
224 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); | ||
225 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); | ||
226 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | ||
227 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | ||
228 | |||
229 | // Set up bloom rendering buffers | ||
230 | glBindTexture(GL_TEXTURE_2D, preBloomTex_.getId()); | ||
231 | glTexImage2D( | ||
232 | GL_TEXTURE_2D, | ||
233 | 0, | ||
234 | GL_RGB, | ||
235 | width_, | ||
236 | height_, | ||
237 | 0, | ||
238 | GL_RGB, | ||
239 | GL_UNSIGNED_BYTE, | ||
240 | 0); | ||
241 | |||
242 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); | ||
243 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); | ||
244 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | ||
245 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | ||
246 | |||
247 | glBindTexture(GL_TEXTURE_2D, bloomPassTex1_.getId()); | ||
248 | glTexImage2D( | ||
249 | GL_TEXTURE_2D, | ||
250 | 0, | ||
251 | GL_RGB, | ||
252 | width_ / 4, | ||
253 | height_ / 4, | ||
254 | 0, | ||
255 | GL_RGB, | ||
256 | GL_UNSIGNED_BYTE, | ||
257 | 0); | ||
258 | |||
259 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); | ||
260 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); | ||
261 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | ||
262 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | ||
263 | |||
264 | glBindTexture(GL_TEXTURE_2D, bloomPassTex2_.getId()); | ||
265 | glTexImage2D( | ||
266 | GL_TEXTURE_2D, | ||
267 | 0, | ||
268 | GL_RGB, | ||
269 | width_ / 4, | ||
270 | height_ / 4, | ||
271 | 0, | ||
272 | GL_RGB, | ||
273 | GL_UNSIGNED_BYTE, | ||
274 | 0); | ||
275 | |||
276 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); | ||
277 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); | ||
278 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | ||
279 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | ||
280 | } | ||
281 | |||
282 | Renderer::~Renderer() | ||
283 | { | ||
284 | singletonInitialized_ = false; | ||
285 | } | ||
286 | |||
287 | void Renderer::fill(Texture& tex, Rectangle dstrect, int r, int g, int b) | ||
288 | { | ||
289 | // Target the framebuffer | ||
290 | glBindFramebuffer(GL_FRAMEBUFFER, genericFb_.getId()); | ||
291 | glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, tex.getId(), 0); | ||
292 | |||
293 | // Set up the vertex attributes | ||
294 | int width = tex.getWidth(); | ||
295 | int height = tex.getHeight(); | ||
296 | |||
297 | GLfloat minx = (GLfloat) dstrect.x / width * 2.0 - 1.0; | ||
298 | GLfloat miny = -((GLfloat) dstrect.y / height * 2.0 - 1.0); | ||
299 | GLfloat maxx = (GLfloat) (dstrect.x + dstrect.w) / width * 2.0 - 1.0; | ||
300 | GLfloat maxy = -((GLfloat) (dstrect.y + dstrect.h) / height * 2.0 - 1.0); | ||
301 | |||
302 | GLfloat vertexData[] = { | ||
303 | minx, miny, | ||
304 | maxx, miny, | ||
305 | maxx, maxy, | ||
306 | minx, miny, | ||
307 | minx, maxy, | ||
308 | maxx, maxy | ||
309 | }; | ||
310 | |||
311 | GLBuffer vertexBuffer; | ||
312 | glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer.getId()); | ||
313 | glBufferData( | ||
314 | GL_ARRAY_BUFFER, | ||
315 | sizeof(GLfloat) * 12, | ||
316 | vertexData, GL_STATIC_DRAW); | ||
317 | |||
318 | glEnableVertexAttribArray(0); | ||
319 | glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, nullptr); | ||
320 | |||
321 | glViewport(0, 0, tex.getWidth(), tex.getHeight()); | ||
322 | glClear(GL_DEPTH_BUFFER_BIT); | ||
323 | |||
324 | fillShader_.use(); | ||
325 | glUniform3f( | ||
326 | fillShader_.getUniformLocation("vecColor"), | ||
327 | r / 255.0, | ||
328 | g / 255.0, | ||
329 | b / 255.0); | ||
330 | |||
331 | glDrawArrays(GL_TRIANGLES, 0, 6); | ||
332 | |||
333 | glDisableVertexAttribArray(0); | ||
334 | } | ||
335 | |||
336 | void Renderer::blit( | ||
337 | const Texture& src, | ||
338 | Texture& dst, | ||
339 | Rectangle srcrect, | ||
340 | Rectangle dstrect, | ||
341 | double alpha) | ||
342 | { | ||
343 | alpha = glm::clamp(alpha, 0.0, 1.0); | ||
344 | |||
345 | // Target the framebuffer | ||
346 | glBindFramebuffer(GL_FRAMEBUFFER, genericFb_.getId()); | ||
347 | glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, dst.getId(), 0); | ||
348 | |||
349 | // Set up the vertex attributes | ||
350 | int width = dst.getWidth(); | ||
351 | int height = dst.getHeight(); | ||
352 | |||
353 | GLfloat minx = (GLfloat) dstrect.x / width * 2.0 - 1.0; | ||
354 | GLfloat miny = -((GLfloat) dstrect.y / height * 2.0 - 1.0); | ||
355 | GLfloat maxx = (GLfloat) (dstrect.x + dstrect.w) / width * 2.0 - 1.0; | ||
356 | GLfloat maxy = -((GLfloat) (dstrect.y + dstrect.h) / height * 2.0 - 1.0); | ||
357 | |||
358 | GLfloat vertexData[] = { | ||
359 | minx, miny, | ||
360 | maxx, miny, | ||
361 | minx, maxy, | ||
362 | maxx, maxy | ||
363 | }; | ||
364 | |||
365 | GLBuffer vertexBuffer; | ||
366 | glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer.getId()); | ||
367 | glBufferData( | ||
368 | GL_ARRAY_BUFFER, | ||
369 | sizeof(GLfloat) * 8, | ||
370 | vertexData, | ||
371 | GL_STATIC_DRAW); | ||
372 | |||
373 | glEnableVertexAttribArray(0); | ||
374 | glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, nullptr); | ||
375 | |||
376 | GLfloat minu = (GLfloat) srcrect.x / src.getWidth(); | ||
377 | GLfloat minv = 1 - ((GLfloat) srcrect.y / src.getHeight()); | ||
378 | GLfloat maxu = (GLfloat) (srcrect.x + srcrect.w) / src.getWidth(); | ||
379 | GLfloat maxv = 1 - ((GLfloat) (srcrect.y + srcrect.h) / src.getHeight()); | ||
380 | |||
381 | GLfloat uvData[] = { | ||
382 | minu, minv, | ||
383 | maxu, minv, | ||
384 | minu, maxv, | ||
385 | maxu, maxv | ||
386 | }; | ||
387 | |||
388 | GLBuffer uvBuffer; | ||
389 | glBindBuffer(GL_ARRAY_BUFFER, uvBuffer.getId()); | ||
390 | glBufferData( | ||
391 | GL_ARRAY_BUFFER, | ||
392 | sizeof(GLfloat) * 8, | ||
393 | uvData, | ||
394 | GL_STATIC_DRAW); | ||
395 | |||
396 | glEnableVertexAttribArray(1); | ||
397 | glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0, nullptr); | ||
398 | |||
399 | // Set up the shader | ||
400 | blitShader_.use(); | ||
401 | glClear(GL_DEPTH_BUFFER_BIT); | ||
402 | glViewport(0, 0, dst.getWidth(), dst.getHeight()); | ||
403 | |||
404 | glActiveTexture(GL_TEXTURE0); | ||
405 | glBindTexture(GL_TEXTURE_2D, src.getId()); | ||
406 | glUniform1i(blitShader_.getUniformLocation("srctex"), 0); | ||
407 | glUniform1f(blitShader_.getUniformLocation("alpha"), alpha); | ||
408 | |||
409 | // Blit! | ||
410 | glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); | ||
411 | |||
412 | // Unload everything | ||
413 | glDisableVertexAttribArray(1); | ||
414 | glDisableVertexAttribArray(0); | ||
415 | } | ||
416 | |||
417 | void Renderer::bloomPass1( | ||
418 | const GLTexture& src, | ||
419 | GLTexture& dst, | ||
420 | bool horizontal, | ||
421 | glm::vec2 srcRes, | ||
422 | glm::vec2 dstRes) | ||
423 | { | ||
424 | glBindFramebuffer(GL_FRAMEBUFFER, genericFb_.getId()); | ||
425 | glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, dst.getId(), 0); | ||
426 | glViewport(0,0,dstRes.x,dstRes.y); | ||
427 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); | ||
428 | bloom1Shader_.use(); | ||
429 | |||
430 | glActiveTexture(GL_TEXTURE0); | ||
431 | glBindTexture(GL_TEXTURE_2D, src.getId()); | ||
432 | glUniform1i(bloom1Shader_.getUniformLocation("inTex"), 0); | ||
433 | |||
434 | glm::vec2 offset = glm::vec2(0.0); | ||
435 | if (horizontal) | ||
436 | { | ||
437 | offset.x = 1.2/srcRes.x; | ||
438 | } else { | ||
439 | offset.y = 1.2/srcRes.y; | ||
440 | } | ||
441 | |||
442 | glUniform2f(bloom1Shader_.getUniformLocation("offset"), offset.x, offset.y); | ||
443 | |||
444 | glEnableVertexAttribArray(0); | ||
445 | glBindBuffer(GL_ARRAY_BUFFER, quadBuffer_.getId()); | ||
446 | glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, nullptr); | ||
447 | glDrawArrays(GL_TRIANGLES, 0, 6); | ||
448 | glDisableVertexAttribArray(0); | ||
449 | } | ||
450 | |||
451 | void Renderer::renderScreen(const Texture& tex) | ||
452 | { | ||
453 | // First we're going to composite our frame with the previous frame | ||
454 | // We start by setting up the framebuffer | ||
455 | glBindFramebuffer(GL_FRAMEBUFFER, genericFb_.getId()); | ||
456 | glFramebufferTexture( | ||
457 | GL_FRAMEBUFFER, | ||
458 | GL_COLOR_ATTACHMENT0, | ||
459 | renderPages_[curBuf_].getId(), | ||
460 | 0); | ||
461 | |||
462 | // Set up the shader | ||
463 | glViewport(0,0,GAME_WIDTH,GAME_HEIGHT); | ||
464 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); | ||
465 | ntscShader_.use(); | ||
466 | |||
467 | // Use the current frame texture, nearest neighbor and clamped to edge | ||
468 | glActiveTexture(GL_TEXTURE0); | ||
469 | glBindTexture(GL_TEXTURE_2D, tex.getId()); | ||
470 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); | ||
471 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); | ||
472 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | ||
473 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | ||
474 | glUniform1i(ntscShader_.getUniformLocation("curFrameSampler"), 0); | ||
475 | |||
476 | // Use the previous frame composite texture, nearest neighbor and clamped to | ||
477 | // edge | ||
478 | glActiveTexture(GL_TEXTURE1); | ||
479 | glBindTexture(GL_TEXTURE_2D, renderPages_[(curBuf_ + 1) % 2].getId()); | ||
480 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); | ||
481 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); | ||
482 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | ||
483 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | ||
484 | glUniform1i(ntscShader_.getUniformLocation("prevFrameSampler"), 1); | ||
485 | |||
486 | // Load the NTSC artifact texture | ||
487 | glActiveTexture(GL_TEXTURE2); | ||
488 | glBindTexture(GL_TEXTURE_2D, artifactsTex_.getId()); | ||
489 | glUniform1i(ntscShader_.getUniformLocation("NTSCArtifactSampler"), 2); | ||
490 | glUniform1f(ntscShader_.getUniformLocation("NTSCLerp"), curBuf_ * 1.0); | ||
491 | |||
492 | // Change the 0.0 to a 1.0 or a 10.0 for a glitchy effect! | ||
493 | glUniform1f(ntscShader_.getUniformLocation("Tuning_NTSC"), 0.0); | ||
494 | |||
495 | // Render our composition | ||
496 | glEnableVertexAttribArray(0); | ||
497 | glBindBuffer(GL_ARRAY_BUFFER, quadBuffer_.getId()); | ||
498 | glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, nullptr); | ||
499 | glDrawArrays(GL_TRIANGLES, 0, 6); | ||
500 | glDisableVertexAttribArray(0); | ||
501 | |||
502 | // We're going to render the screen now | ||
503 | glBindFramebuffer(GL_FRAMEBUFFER, bloomFb_.getId()); | ||
504 | glFramebufferTexture( | ||
505 | GL_FRAMEBUFFER, | ||
506 | GL_COLOR_ATTACHMENT1, | ||
507 | preBloomTex_.getId(), | ||
508 | 0); | ||
509 | |||
510 | glViewport(0,0,width_,height_); | ||
511 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); | ||
512 | finalShader_.use(); | ||
513 | |||
514 | // Use the composited frame texture, linearly filtered and filling in black | ||
515 | // for the border | ||
516 | glActiveTexture(GL_TEXTURE0); | ||
517 | glBindTexture(GL_TEXTURE_2D, renderPages_[curBuf_].getId()); | ||
518 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); | ||
519 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); | ||
520 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER); | ||
521 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER); | ||
522 | |||
523 | float borderColor[] = {0.0f, 0.0f, 0.0f, 1.0f}; | ||
524 | glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, borderColor); | ||
525 | |||
526 | glGenerateMipmap(GL_TEXTURE_2D); | ||
527 | glUniform1i(finalShader_.getUniformLocation("rendertex"), 0); | ||
528 | |||
529 | // Use the scanlines texture | ||
530 | glActiveTexture(GL_TEXTURE1); | ||
531 | glBindTexture(GL_TEXTURE_2D, scanlinesTex_.getId()); | ||
532 | glUniform1i(finalShader_.getUniformLocation("scanlinestex"), 1); | ||
533 | |||
534 | // Initialize the MVP matrices | ||
535 | glm::mat4 p_matrix = glm::perspective( | ||
536 | glm::radians(25.0f), | ||
537 | static_cast<float>(width_) / static_cast<float>(height_), | ||
538 | 0.1f, | ||
539 | 100.0f); | ||
540 | |||
541 | glm::mat4 v_matrix = glm::lookAt( | ||
542 | glm::vec3(3.75,0,0), // Camera | ||
543 | glm::vec3(0,0,0), // Center | ||
544 | glm::vec3(0,1,0)); // Up | ||
545 | |||
546 | glm::mat4 m_matrix = glm::mat4(1.0); | ||
547 | glm::mat4 mvp_matrix = p_matrix * v_matrix * m_matrix; | ||
548 | |||
549 | glUniformMatrix4fv( | ||
550 | finalShader_.getUniformLocation("MVP"), | ||
551 | 1, | ||
552 | GL_FALSE, | ||
553 | &mvp_matrix[0][0]); | ||
554 | |||
555 | glUniformMatrix4fv( | ||
556 | finalShader_.getUniformLocation("worldMat"), | ||
557 | 1, | ||
558 | GL_FALSE, | ||
559 | &m_matrix[0][0]); | ||
560 | |||
561 | glUniform2f(finalShader_.getUniformLocation("resolution"), width_, height_); | ||
562 | glUniform1f(finalShader_.getUniformLocation("iGlobalTime"), glfwGetTime()); | ||
563 | |||
564 | glUniform3f( | ||
565 | finalShader_.getUniformLocation("frameColor"), | ||
566 | 0.76f, | ||
567 | 0.78f, | ||
568 | 0.81f); | ||
569 | |||
570 | glEnableVertexAttribArray(0); | ||
571 | glBindBuffer(GL_ARRAY_BUFFER, monitor_.getVertexBufferId()); | ||
572 | glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, nullptr); | ||
573 | |||
574 | glEnableVertexAttribArray(1); | ||
575 | glBindBuffer(GL_ARRAY_BUFFER, monitor_.getNormalBufferId()); | ||
576 | glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, nullptr); | ||
577 | |||
578 | glEnableVertexAttribArray(2); | ||
579 | glBindBuffer(GL_ARRAY_BUFFER, monitor_.getUvBufferId()); | ||
580 | glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 0, nullptr); | ||
581 | |||
582 | glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, monitor_.getIndexBufferId()); | ||
583 | glDrawElements( | ||
584 | GL_TRIANGLES, | ||
585 | monitor_.getIndexCount(), | ||
586 | GL_UNSIGNED_SHORT, | ||
587 | nullptr); | ||
588 | |||
589 | glDisableVertexAttribArray(2); | ||
590 | glDisableVertexAttribArray(1); | ||
591 | glDisableVertexAttribArray(0); | ||
592 | |||
593 | // First pass of bloom! | ||
594 | glm::vec2 bufferSize = glm::vec2(width_, height_); | ||
595 | |||
596 | bloomPass1( | ||
597 | preBloomTex_, | ||
598 | bloomPassTex1_, | ||
599 | true, | ||
600 | bufferSize, | ||
601 | bufferSize / 4.0f); | ||
602 | |||
603 | bloomPass1( | ||
604 | bloomPassTex1_, | ||
605 | bloomPassTex2_, | ||
606 | false, | ||
607 | bufferSize / 4.0f, | ||
608 | bufferSize / 4.0f); | ||
609 | |||
610 | // Do the second pass of bloom and render to screen | ||
611 | glBindFramebuffer(GL_FRAMEBUFFER, 0); | ||
612 | glViewport(0, 0, width_, height_); | ||
613 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); | ||
614 | bloom2Shader_.use(); | ||
615 | |||
616 | glActiveTexture(GL_TEXTURE0); | ||
617 | glBindTexture(GL_TEXTURE_2D, preBloomTex_.getId()); | ||
618 | glUniform1i(bloom2Shader_.getUniformLocation("clearTex"), 0); | ||
619 | |||
620 | glActiveTexture(GL_TEXTURE1); | ||
621 | glBindTexture(GL_TEXTURE_2D, bloomPassTex2_.getId()); | ||
622 | glUniform1i(bloom2Shader_.getUniformLocation("blurTex"), 1); | ||
623 | |||
624 | glUniform1f(bloom2Shader_.getUniformLocation("iGlobalTime"), glfwGetTime()); | ||
625 | |||
626 | glEnableVertexAttribArray(0); | ||
627 | glBindBuffer(GL_ARRAY_BUFFER, quadBuffer_.getId()); | ||
628 | glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, nullptr); | ||
629 | glDrawArrays(GL_TRIANGLES, 0, 6); | ||
630 | glDisableVertexAttribArray(0); | ||
631 | |||
632 | glfwSwapBuffers(window_.getHandle()); | ||
633 | |||
634 | curBuf_ = (curBuf_ + 1) % 2; | ||
635 | } | ||
diff --git a/src/renderer/renderer.h b/src/renderer/renderer.h new file mode 100644 index 0000000..0b10af5 --- /dev/null +++ b/src/renderer/renderer.h | |||
@@ -0,0 +1,114 @@ | |||
1 | #ifndef RENDERER_H | ||
2 | #define RENDERER_H | ||
3 | |||
4 | #include "gl.h" | ||
5 | #include "wrappers.h" | ||
6 | #include "mesh.h" | ||
7 | #include "shader.h" | ||
8 | #include <glm/glm.hpp> | ||
9 | |||
10 | class Texture; | ||
11 | struct Rectangle; | ||
12 | |||
13 | class Renderer { | ||
14 | public: | ||
15 | |||
16 | class Window { | ||
17 | public: | ||
18 | |||
19 | Window(); | ||
20 | |||
21 | Window(const Window& other) = delete; | ||
22 | Window& operator=(const Window& other) = delete; | ||
23 | |||
24 | ~Window(); | ||
25 | |||
26 | inline GLFWwindow* getHandle() | ||
27 | { | ||
28 | return window_; | ||
29 | } | ||
30 | |||
31 | private: | ||
32 | |||
33 | GLFWwindow* window_; | ||
34 | }; | ||
35 | |||
36 | static inline bool isSingletonInitialized() | ||
37 | { | ||
38 | return singletonInitialized_; | ||
39 | } | ||
40 | |||
41 | Renderer(); | ||
42 | |||
43 | Renderer(const Renderer& other) = delete; | ||
44 | Renderer& operator=(const Renderer& other) = delete; | ||
45 | |||
46 | ~Renderer(); | ||
47 | |||
48 | inline Window& getWindow() | ||
49 | { | ||
50 | return window_; | ||
51 | } | ||
52 | |||
53 | void fill( | ||
54 | Texture& tex, | ||
55 | Rectangle loc, | ||
56 | int r, | ||
57 | int g, | ||
58 | int b); | ||
59 | |||
60 | void blit( | ||
61 | const Texture& src, | ||
62 | Texture& dst, | ||
63 | Rectangle srcrect, | ||
64 | Rectangle dstrect, | ||
65 | double alpha = 1.0); | ||
66 | |||
67 | void renderScreen(const Texture& tex); | ||
68 | |||
69 | private: | ||
70 | |||
71 | friend void setFramebufferSize(GLFWwindow* w, int width, int height); | ||
72 | |||
73 | void initializeFramebuffers(); | ||
74 | |||
75 | void bloomPass1( | ||
76 | const GLTexture& src, | ||
77 | GLTexture& dst, | ||
78 | bool horizontal, | ||
79 | glm::vec2 srcRes, | ||
80 | glm::vec2 dstRes); | ||
81 | |||
82 | static bool singletonInitialized_; | ||
83 | |||
84 | Window window_; | ||
85 | GLVertexArray vao_; | ||
86 | |||
87 | GLFramebuffer genericFb_; | ||
88 | GLFramebuffer bloomFb_; | ||
89 | GLRenderbuffer bloomDepth_; | ||
90 | |||
91 | GLTexture renderPages_[2]; | ||
92 | GLTexture preBloomTex_; | ||
93 | GLTexture bloomPassTex1_; | ||
94 | GLTexture bloomPassTex2_; | ||
95 | |||
96 | Mesh monitor_; | ||
97 | GLBuffer quadBuffer_; | ||
98 | |||
99 | GLTexture artifactsTex_; | ||
100 | GLTexture scanlinesTex_; | ||
101 | |||
102 | Shader ntscShader_; | ||
103 | Shader finalShader_; | ||
104 | Shader blitShader_; | ||
105 | Shader fillShader_; | ||
106 | Shader bloom1Shader_; | ||
107 | Shader bloom2Shader_; | ||
108 | |||
109 | size_t curBuf_ = 0; | ||
110 | int width_; | ||
111 | int height_; | ||
112 | }; | ||
113 | |||
114 | #endif | ||
diff --git a/src/renderer/shader.cpp b/src/renderer/shader.cpp new file mode 100644 index 0000000..735fc22 --- /dev/null +++ b/src/renderer/shader.cpp | |||
@@ -0,0 +1,84 @@ | |||
1 | #include "shader.h" | ||
2 | #include <fstream> | ||
3 | #include <vector> | ||
4 | #include "util.h" | ||
5 | |||
6 | Shader::Shader(std::string name) | ||
7 | { | ||
8 | GLShader vertexShader(GL_VERTEX_SHADER); | ||
9 | GLShader fragmentShader(GL_FRAGMENT_SHADER); | ||
10 | |||
11 | std::ifstream vertexFile("shaders/" + name + ".vertex"); | ||
12 | std::ifstream fragmentFile("shaders/" + name + ".fragment"); | ||
13 | |||
14 | std::string vertexCode(slurp(vertexFile)); | ||
15 | std::string fragmentCode(slurp(fragmentFile)); | ||
16 | |||
17 | const char* vertexCodePtr = vertexCode.c_str(); | ||
18 | const char* fragmentCodePtr = fragmentCode.c_str(); | ||
19 | |||
20 | glShaderSource(vertexShader.getId(), 1, &vertexCodePtr, nullptr); | ||
21 | glShaderSource(fragmentShader.getId(), 1, &fragmentCodePtr, nullptr); | ||
22 | |||
23 | glCompileShader(vertexShader.getId()); | ||
24 | glCompileShader(fragmentShader.getId()); | ||
25 | |||
26 | #ifdef DEBUG | ||
27 | GLint result = GL_FALSE; | ||
28 | int infoLogLength; | ||
29 | |||
30 | glGetShaderiv(vertexShader.getId(), GL_COMPILE_STATUS, &result); | ||
31 | |||
32 | if (result == GL_FALSE) | ||
33 | { | ||
34 | glGetShaderiv(vertexShader.getId(), GL_INFO_LOG_LENGTH, &infoLogLength); | ||
35 | |||
36 | std::vector<char> errMsg(infoLogLength); | ||
37 | glGetShaderInfoLog( | ||
38 | vertexShader.getId(), | ||
39 | infoLogLength, | ||
40 | nullptr, | ||
41 | errMsg.data()); | ||
42 | |||
43 | throw std::gl_error("Could not compile shader", errMsg.data()); | ||
44 | } | ||
45 | |||
46 | glGetShaderiv(fragmentShader.getId(), GL_COMPILE_STATUS, &result); | ||
47 | |||
48 | if (result == GL_FALSE) | ||
49 | { | ||
50 | glGetShaderiv(fragmentShader.getId(), GL_INFO_LOG_LENGTH, &infoLogLength); | ||
51 | |||
52 | std::vector<char> errMsg(infoLogLength); | ||
53 | glGetShaderInfoLog( | ||
54 | fragmentShader.getId(), | ||
55 | infoLogLength, | ||
56 | nullptr, | ||
57 | errMsg.data()); | ||
58 | |||
59 | throw std::gl_error("Could not compile shader", errMsg.data()); | ||
60 | } | ||
61 | #endif | ||
62 | |||
63 | glAttachShader(program_.getId(), vertexShader.getId()); | ||
64 | glAttachShader(program_.getId(), fragmentShader.getId()); | ||
65 | glLinkProgram(program_.getId()); | ||
66 | |||
67 | #ifdef DEBUG | ||
68 | glGetProgramiv(program_.getId(), GL_LINK_STATUS, &result); | ||
69 | |||
70 | if (result == GL_FALSE) | ||
71 | { | ||
72 | glGetProgramiv(program_.getId(), GL_INFO_LOG_LENGTH, &infoLogLength); | ||
73 | |||
74 | std::vector<char> errMsg(infoLogLength); | ||
75 | glGetProgramInfoLog( | ||
76 | program_.getId(), | ||
77 | infoLogLength, | ||
78 | nullptr, | ||
79 | errMsg.data()); | ||
80 | |||
81 | throw std::gl_error("Could not link shader program", errMsg.data()); | ||
82 | } | ||
83 | #endif | ||
84 | } | ||
diff --git a/src/renderer/shader.h b/src/renderer/shader.h new file mode 100644 index 0000000..d2c673c --- /dev/null +++ b/src/renderer/shader.h | |||
@@ -0,0 +1,58 @@ | |||
1 | #ifndef SHADER_H_25115B63 | ||
2 | #define SHADER_H_25115B63 | ||
3 | |||
4 | #include <string> | ||
5 | #include <stdexcept> | ||
6 | #include "gl.h" | ||
7 | #include "wrappers.h" | ||
8 | |||
9 | class gl_error : public std::logic_error { | ||
10 | public: | ||
11 | |||
12 | gl_error( | ||
13 | const char* msg, | ||
14 | std::string info) : | ||
15 | std::logic_error(msg), | ||
16 | info_(std::move(info)) | ||
17 | { | ||
18 | } | ||
19 | |||
20 | gl_error( | ||
21 | std::string& msg, | ||
22 | std::string info) : | ||
23 | std::logic_error(msg), | ||
24 | info_(std::move(info)) | ||
25 | { | ||
26 | } | ||
27 | |||
28 | inline const std::string& getInfo() const | ||
29 | { | ||
30 | return info_; | ||
31 | } | ||
32 | |||
33 | private: | ||
34 | |||
35 | std::string info_; | ||
36 | }; | ||
37 | |||
38 | class Shader { | ||
39 | public: | ||
40 | |||
41 | Shader(std::string name); | ||
42 | |||
43 | inline void use() | ||
44 | { | ||
45 | glUseProgram(program_.getId()); | ||
46 | } | ||
47 | |||
48 | inline GLint getUniformLocation(const GLchar* name) | ||
49 | { | ||
50 | return glGetUniformLocation(program_.getId(), name); | ||
51 | } | ||
52 | |||
53 | private: | ||
54 | |||
55 | GLProgram program_; | ||
56 | }; | ||
57 | |||
58 | #endif /* end of include guard: SHADER_H_25115B63 */ | ||
diff --git a/src/renderer/texture.cpp b/src/renderer/texture.cpp new file mode 100644 index 0000000..2728665 --- /dev/null +++ b/src/renderer/texture.cpp | |||
@@ -0,0 +1,124 @@ | |||
1 | #include "texture.h" | ||
2 | #include <stdexcept> | ||
3 | #include "renderer.h" | ||
4 | #include "util.h" | ||
5 | |||
6 | // include stb_image | ||
7 | #define STBI_ONLY_PNG | ||
8 | #define STBI_ONLY_BMP | ||
9 | #include "stb_image.h" | ||
10 | |||
11 | Texture::Texture( | ||
12 | int width, | ||
13 | int height) : | ||
14 | width_(width), | ||
15 | height_(height) | ||
16 | { | ||
17 | if (!Renderer::isSingletonInitialized()) | ||
18 | { | ||
19 | throw std::logic_error("Renderer needs to be initialized"); | ||
20 | } | ||
21 | |||
22 | glBindTexture(GL_TEXTURE_2D, texture_.getId()); | ||
23 | glTexImage2D( | ||
24 | GL_TEXTURE_2D, | ||
25 | 0, | ||
26 | GL_RGBA, | ||
27 | width_, | ||
28 | height_, | ||
29 | 0, | ||
30 | GL_RGBA, | ||
31 | GL_UNSIGNED_BYTE, | ||
32 | 0); | ||
33 | |||
34 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); | ||
35 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); | ||
36 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | ||
37 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | ||
38 | } | ||
39 | |||
40 | Texture::Texture(const char* filename) | ||
41 | { | ||
42 | if (!Renderer::isSingletonInitialized()) | ||
43 | { | ||
44 | throw std::logic_error("Renderer needs to be initialized"); | ||
45 | } | ||
46 | |||
47 | glBindTexture(GL_TEXTURE_2D, texture_.getId()); | ||
48 | unsigned char* data = stbi_load(filename, &width_, &height_, 0, 4); | ||
49 | flipImageData(data, width_, height_, 4); | ||
50 | glTexImage2D( | ||
51 | GL_TEXTURE_2D, | ||
52 | 0, | ||
53 | GL_RGBA, | ||
54 | width_, | ||
55 | height_, | ||
56 | 0, | ||
57 | GL_RGBA, | ||
58 | GL_UNSIGNED_BYTE, | ||
59 | data); | ||
60 | |||
61 | stbi_image_free(data); | ||
62 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); | ||
63 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); | ||
64 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | ||
65 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | ||
66 | } | ||
67 | |||
68 | Texture::Texture( | ||
69 | const Texture& tex) : | ||
70 | width_(tex.width_), | ||
71 | height_(tex.height_) | ||
72 | { | ||
73 | if (!Renderer::isSingletonInitialized()) | ||
74 | { | ||
75 | throw std::logic_error("Renderer needs to be initialized"); | ||
76 | } | ||
77 | |||
78 | unsigned char* data = new unsigned char[4 * width_ * height_]; | ||
79 | glBindTexture(GL_TEXTURE_2D, tex.getId()); | ||
80 | glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, data); | ||
81 | |||
82 | glBindTexture(GL_TEXTURE_2D, texture_.getId()); | ||
83 | glTexImage2D( | ||
84 | GL_TEXTURE_2D, | ||
85 | 0, | ||
86 | GL_RGBA, | ||
87 | width_, | ||
88 | height_, | ||
89 | 0, | ||
90 | GL_RGBA, | ||
91 | GL_UNSIGNED_BYTE, | ||
92 | data); | ||
93 | |||
94 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); | ||
95 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); | ||
96 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | ||
97 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | ||
98 | |||
99 | delete[] data; | ||
100 | } | ||
101 | |||
102 | Texture::Texture(Texture&& tex) : Texture(0, 0) | ||
103 | { | ||
104 | swap(*this, tex); | ||
105 | } | ||
106 | |||
107 | Texture& Texture::operator= (Texture tex) | ||
108 | { | ||
109 | swap(*this, tex); | ||
110 | |||
111 | return *this; | ||
112 | } | ||
113 | |||
114 | void swap(Texture& tex1, Texture& tex2) | ||
115 | { | ||
116 | std::swap(tex1.width_, tex2.width_); | ||
117 | std::swap(tex1.height_, tex2.height_); | ||
118 | std::swap(tex1.texture_, tex2.texture_); | ||
119 | } | ||
120 | |||
121 | Rectangle Texture::entirety() const | ||
122 | { | ||
123 | return {0, 0, width_, height_}; | ||
124 | } | ||
diff --git a/src/renderer/texture.h b/src/renderer/texture.h new file mode 100644 index 0000000..3aa8773 --- /dev/null +++ b/src/renderer/texture.h | |||
@@ -0,0 +1,52 @@ | |||
1 | #ifndef TEXTURE_H_84EC6DF6 | ||
2 | #define TEXTURE_H_84EC6DF6 | ||
3 | |||
4 | #include "wrappers.h" | ||
5 | |||
6 | struct Rectangle { | ||
7 | int x; | ||
8 | int y; | ||
9 | int w; | ||
10 | int h; | ||
11 | }; | ||
12 | |||
13 | class Texture { | ||
14 | public: | ||
15 | |||
16 | Texture(int width, int height); | ||
17 | |||
18 | Texture(const char* file); | ||
19 | |||
20 | Texture(const Texture& tex); | ||
21 | |||
22 | Texture(Texture&& tex); | ||
23 | |||
24 | Texture& operator= (Texture tex); | ||
25 | |||
26 | friend void swap(Texture& tex1, Texture& tex2); | ||
27 | |||
28 | Rectangle entirety() const; | ||
29 | |||
30 | inline GLuint getId() const | ||
31 | { | ||
32 | return texture_.getId(); | ||
33 | } | ||
34 | |||
35 | inline int getWidth() const | ||
36 | { | ||
37 | return width_; | ||
38 | } | ||
39 | |||
40 | inline int getHeight() const | ||
41 | { | ||
42 | return height_; | ||
43 | } | ||
44 | |||
45 | private: | ||
46 | |||
47 | GLTexture texture_; | ||
48 | int width_; | ||
49 | int height_; | ||
50 | }; | ||
51 | |||
52 | #endif /* end of include guard: TEXTURE_H_84EC6DF6 */ | ||
diff --git a/src/renderer/wrappers.h b/src/renderer/wrappers.h new file mode 100644 index 0000000..c6edc11 --- /dev/null +++ b/src/renderer/wrappers.h | |||
@@ -0,0 +1,273 @@ | |||
1 | #ifndef WRAPPERS_H_1EE0965B | ||
2 | #define WRAPPERS_H_1EE0965B | ||
3 | |||
4 | #include "gl.h" | ||
5 | #include <utility> | ||
6 | |||
7 | class GLVertexArray { | ||
8 | public: | ||
9 | |||
10 | GLVertexArray() | ||
11 | { | ||
12 | glGenVertexArrays(1, &id_); | ||
13 | } | ||
14 | |||
15 | GLVertexArray(const GLVertexArray& other) = delete; | ||
16 | GLVertexArray& operator=(const GLVertexArray& other) = delete; | ||
17 | |||
18 | GLVertexArray(GLVertexArray&& other) : GLVertexArray() | ||
19 | { | ||
20 | std::swap(id_, other.id_); | ||
21 | } | ||
22 | |||
23 | GLVertexArray& operator=(GLVertexArray&& other) | ||
24 | { | ||
25 | std::swap(id_, other.id_); | ||
26 | |||
27 | return *this; | ||
28 | } | ||
29 | |||
30 | ~GLVertexArray() | ||
31 | { | ||
32 | glDeleteVertexArrays(1, &id_); | ||
33 | } | ||
34 | |||
35 | inline GLuint getId() const | ||
36 | { | ||
37 | return id_; | ||
38 | } | ||
39 | |||
40 | private: | ||
41 | |||
42 | GLuint id_; | ||
43 | }; | ||
44 | |||
45 | class GLFramebuffer { | ||
46 | public: | ||
47 | |||
48 | GLFramebuffer() | ||
49 | { | ||
50 | glGenFramebuffers(1, &id_); | ||
51 | } | ||
52 | |||
53 | GLFramebuffer(const GLFramebuffer& other) = delete; | ||
54 | GLFramebuffer& operator=(const GLFramebuffer& other) = delete; | ||
55 | |||
56 | GLFramebuffer(GLFramebuffer&& other) : GLFramebuffer() | ||
57 | { | ||
58 | std::swap(id_, other.id_); | ||
59 | } | ||
60 | |||
61 | GLFramebuffer& operator=(GLFramebuffer&& other) | ||
62 | { | ||
63 | std::swap(id_, other.id_); | ||
64 | |||
65 | return *this; | ||
66 | } | ||
67 | |||
68 | ~GLFramebuffer() | ||
69 | { | ||
70 | glDeleteFramebuffers(1, &id_); | ||
71 | } | ||
72 | |||
73 | inline GLuint getId() const | ||
74 | { | ||
75 | return id_; | ||
76 | } | ||
77 | |||
78 | private: | ||
79 | |||
80 | GLuint id_; | ||
81 | }; | ||
82 | |||
83 | class GLRenderbuffer { | ||
84 | public: | ||
85 | |||
86 | GLRenderbuffer() | ||
87 | { | ||
88 | glGenRenderbuffers(1, &id_); | ||
89 | } | ||
90 | |||
91 | GLRenderbuffer(const GLRenderbuffer& other) = delete; | ||
92 | GLRenderbuffer& operator=(const GLRenderbuffer& other) = delete; | ||
93 | |||
94 | GLRenderbuffer(GLRenderbuffer&& other) : GLRenderbuffer() | ||
95 | { | ||
96 | std::swap(id_, other.id_); | ||
97 | } | ||
98 | |||
99 | GLRenderbuffer& operator=(GLRenderbuffer&& other) | ||
100 | { | ||
101 | std::swap(id_, other.id_); | ||
102 | |||
103 | return *this; | ||
104 | } | ||
105 | |||
106 | ~GLRenderbuffer() | ||
107 | { | ||
108 | glDeleteRenderbuffers(1, &id_); | ||
109 | } | ||
110 | |||
111 | inline GLuint getId() const | ||
112 | { | ||
113 | return id_; | ||
114 | } | ||
115 | |||
116 | private: | ||
117 | |||
118 | GLuint id_; | ||
119 | }; | ||
120 | |||
121 | class GLBuffer { | ||
122 | public: | ||
123 | |||
124 | GLBuffer() | ||
125 | { | ||
126 | glGenBuffers(1, &id_); | ||
127 | } | ||
128 | |||
129 | GLBuffer(const GLBuffer& other) = delete; | ||
130 | GLBuffer& operator=(const GLBuffer& other) = delete; | ||
131 | |||
132 | GLBuffer(GLBuffer&& other) : GLBuffer() | ||
133 | { | ||
134 | std::swap(id_, other.id_); | ||
135 | } | ||
136 | |||
137 | GLBuffer& operator=(GLBuffer&& other) | ||
138 | { | ||
139 | std::swap(id_, other.id_); | ||
140 | |||
141 | return *this; | ||
142 | } | ||
143 | |||
144 | ~GLBuffer() | ||
145 | { | ||
146 | glDeleteBuffers(1, &id_); | ||
147 | } | ||
148 | |||
149 | inline GLuint getId() const | ||
150 | { | ||
151 | return id_; | ||
152 | } | ||
153 | |||
154 | private: | ||
155 | |||
156 | GLuint id_; | ||
157 | }; | ||
158 | |||
159 | class GLTexture { | ||
160 | public: | ||
161 | |||
162 | GLTexture() | ||
163 | { | ||
164 | glGenTextures(1, &id_); | ||
165 | } | ||
166 | |||
167 | GLTexture(const GLTexture& other) = delete; | ||
168 | GLTexture& operator=(const GLTexture& other) = delete; | ||
169 | |||
170 | GLTexture(GLTexture&& other) : GLTexture() | ||
171 | { | ||
172 | std::swap(id_, other.id_); | ||
173 | } | ||
174 | |||
175 | GLTexture& operator=(GLTexture&& other) | ||
176 | { | ||
177 | std::swap(id_, other.id_); | ||
178 | |||
179 | return *this; | ||
180 | } | ||
181 | |||
182 | ~GLTexture() | ||
183 | { | ||
184 | glDeleteTextures(1, &id_); | ||
185 | } | ||
186 | |||
187 | inline GLuint getId() const | ||
188 | { | ||
189 | return id_; | ||
190 | } | ||
191 | |||
192 | private: | ||
193 | |||
194 | GLuint id_; | ||
195 | }; | ||
196 | |||
197 | class GLShader { | ||
198 | public: | ||
199 | |||
200 | GLShader(GLenum type) | ||
201 | { | ||
202 | id_ = glCreateShader(type); | ||
203 | } | ||
204 | |||
205 | GLShader(const GLShader& other) = delete; | ||
206 | GLShader& operator=(const GLShader& other) = delete; | ||
207 | |||
208 | GLShader(GLShader&& other) : GLShader(GL_VERTEX_SHADER) | ||
209 | { | ||
210 | std::swap(id_, other.id_); | ||
211 | } | ||
212 | |||
213 | GLShader& operator=(GLShader&& other) | ||
214 | { | ||
215 | std::swap(id_, other.id_); | ||
216 | |||
217 | return *this; | ||
218 | } | ||
219 | |||
220 | ~GLShader() | ||
221 | { | ||
222 | glDeleteShader(id_); | ||
223 | } | ||
224 | |||
225 | inline GLuint getId() const | ||
226 | { | ||
227 | return id_; | ||
228 | } | ||
229 | |||
230 | private: | ||
231 | |||
232 | GLuint id_; | ||
233 | }; | ||
234 | |||
235 | class GLProgram { | ||
236 | public: | ||
237 | |||
238 | GLProgram() | ||
239 | { | ||
240 | id_ = glCreateProgram(); | ||
241 | } | ||
242 | |||
243 | GLProgram(const GLProgram& other) = delete; | ||
244 | GLProgram& operator=(const GLProgram& other) = delete; | ||
245 | |||
246 | GLProgram(GLProgram&& other) : GLProgram() | ||
247 | { | ||
248 | std::swap(id_, other.id_); | ||
249 | } | ||
250 | |||
251 | GLProgram& operator=(GLProgram&& other) | ||
252 | { | ||
253 | std::swap(id_, other.id_); | ||
254 | |||
255 | return *this; | ||
256 | } | ||
257 | |||
258 | ~GLProgram() | ||
259 | { | ||
260 | glDeleteProgram(id_); | ||
261 | } | ||
262 | |||
263 | inline GLuint getId() const | ||
264 | { | ||
265 | return id_; | ||
266 | } | ||
267 | |||
268 | private: | ||
269 | |||
270 | GLuint id_; | ||
271 | }; | ||
272 | |||
273 | #endif /* end of include guard: WRAPPERS_H_1EE0965B */ | ||