void display_gl_memory_init(struct display_gl_s* display) {
location_t location[] = {
{"in_Position", 0},
{"in_Value", 1},
{NULL, 0}
};
int32 width = display->grid_width;
int32 height = display->grid_height;
int32 size = width * height;
display->hex_texture = display_gl_load_texture(TEXTURE("hex.png"));
display_gl_load_shader(&display->memory_shader, SHADER("memory.vert"), SHADER("memory.frag"), location);
display->memory_uniform_projection_matrix = glGetUniformLocation(display->memory_shader.id, "uni_ProjectionMatrix");
display->memory_uniform_coord = glGetUniformLocation(display->memory_shader.id, "uni_Coord");
display->memory_uniform_color = glGetUniformLocation(display->memory_shader.id, "uni_Color");
display->memory_uniform_texture = glGetUniformLocation(display->memory_shader.id, "uni_Texture");
{
float delta = 1.f / 255.f;
float uv[] = {
0.f, 0.f, delta, 0.f, 0.f, 1.0f, delta, 1.0f
};
int id = 0;
glUseProgram(display->memory_shader.id);
glUniform2fv(display->memory_uniform_coord, 4, uv);
glUniform1iv(display->memory_uniform_texture, 1, &id);
glUseProgram(0);
}
display->memory_vao = display_gl_create_vao();
display->memory_vertex_buffer = display_gl_create_buffer(GL_ARRAY_BUFFER, (size + height) * 4, GL_STREAM_DRAW, NULL);
display->memory_vertex_count = (size + height) * 4;
display->memory_index_count = (size + height) * 6;
display->memory_size = (size + height);
display->memory_width = DISPLAY_CELL_SIZE * width;
display->memory_height = DISPLAY_CELL_SIZE * height + 1;
display->memory_stride = width;
glBindVertexArray(display->memory_vao);
glBindBuffer(GL_ARRAY_BUFFER, display->grid_vertex_buffer);
glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, (const void*)0);
glBindBuffer(GL_ARRAY_BUFFER, display->memory_vertex_buffer);
glVertexAttribPointer(1, 1, GL_UNSIGNED_BYTE, GL_FALSE, 1, (const void*)0);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
glBindVertexArray(0);
}
void display_gl_io_init(struct display_gl_s* display) {
location_t location[] = {
{"in_Position", 0},
{"in_Value", 1},
{NULL, 0}
};
display->write_texture = display_gl_load_texture(TEXTURE("write.png"));
display->read_texture = display_gl_load_texture(TEXTURE("read.png"));
display_gl_load_shader(&display->io_shader, SHADER("io.vert"), SHADER("io.frag"), location);
display->io_uniform_projection_matrix = glGetUniformLocation(display->io_shader.id, "uni_ProjectionMatrix");
display->io_uniform_color = glGetUniformLocation(display->io_shader.id, "uni_Color");
display->io_uniform_texture = glGetUniformLocation(display->io_shader.id, "uni_Texture");
glUseProgram(display->io_shader.id);
GLint samplerId = 0;
glUniform1iv(display->io_uniform_texture, 1, &samplerId);
glUseProgram(0);
display->io_read_buffer = (uint8*)malloc(display->memory_size * 4);
display->io_write_buffer = (uint8*)malloc(display->memory_size * 4);
}
t_display* display_initialize(int width, int height)
{
t_display* display = (t_display*)malloc(sizeof(t_display));
if (!glfwInit())
return NULL;
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_FALSE);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
display->window = glfwCreateWindow(width, height, "corewar", NULL, NULL);
glfwMakeContextCurrent(display->window);
glewExperimental = GL_TRUE;
glewInit();
display_generate_grid(display, MEM_SIZE);
display->hex_texture = display_gl_load_texture("data/hex.png");
display_gl_load_shader(&display->memory_shader, "shaders/memory.vert", "shaders/memory.frag");
display->memory_uniform_projection_matrix = glGetUniformLocation(display->memory_shader.id, "uni_ProjectionMatrix");
display->memory_uniform_coord = glGetUniformLocation(display->memory_shader.id, "uni_Coord");
display->memory_uniform_color = glGetUniformLocation(display->memory_shader.id, "uni_Color");
display->memory_uniform_texture = glGetUniformLocation(display->memory_shader.id, "uni_Texture");
{
float delta = 1.f / 256.f;
float uv[] = {
0.f, 0.f, delta, 0.f, 0.f, 1.0f, delta, 1.0f
};
int id = 0;
glUseProgram(display->memory_shader.id);
glUniform2fv(display->memory_uniform_coord, 4, uv);
glUniform1iv(display->memory_uniform_texture, 1, &id);
glUseProgram(0);
}
display_gl_load_shader(&display->io_shader, "shaders/io.vert", "shaders/io.frag");
display->io_uniform_projection_matrix = glGetUniformLocation(display->io_shader.id, "uni_ProjectionMatrix");
display->io_uniform_color = glGetUniformLocation(display->io_shader.id, "uni_Color");
display->memory_vao = display_gl_create_vao();
display_gl_bind_vao(display->memory_vao);
display_gl_bind_buffer(GL_ARRAY_BUFFER, display->memory_grid_vertex_buffer);
glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, (const void*)0);
display_gl_bind_buffer(GL_ARRAY_BUFFER, display->memory_vertex_buffer);
glVertexAttribPointer(1, 1, GL_UNSIGNED_BYTE, GL_FALSE, 1, (const void*)0);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
display->mesh_renderer = display_mesh_renderer_initialize();
glfwGetCursorPos(display->window, &display->mouse_prev_x, &display->mouse_prev_y);
glfwGetFramebufferSize(display->window, &display->frame_buffer_width, &display->frame_buffer_height);
float screen_memory_ratio = display->memory_width / (float) display->frame_buffer_width;
float screen_memory_ratio_height = display->memory_height / (float) display->frame_buffer_height;
if (screen_memory_ratio_height > screen_memory_ratio)
screen_memory_ratio = screen_memory_ratio_height;
display->display_zoom = screen_memory_ratio;
display->display_center_x = ((float)display->frame_buffer_width * 0.5f) * screen_memory_ratio;
display->display_center_y = ((float)display->frame_buffer_height * 0.5f) * screen_memory_ratio;
display->frame_last_time = glfwGetTime();
display_generate_process_mesh(display);
display->texts = display_text_intialize();
glfwSwapInterval(-1);
return display;
}