int PCRender::Init(SWindow *win) {
GLint vpos_loc, tbuf_loc;
m_sWindow = win;
if (m_iWidth * m_iHeight > 0) {
glfwSetWindowSize(m_sWindow, m_iWidth, m_iHeight);
GLFWvidmode *mode = (GLFWvidmode*)glfwGetVideoMode(glfwGetPrimaryMonitor());
glfwSetWindowPos(m_sWindow, (mode->width-m_iWidth)/2, (mode->height-m_iHeight)/2);
}
glfwMakeContextCurrent(m_sWindow);
gladLoadGLLoader((GLADloadproc)glfwGetProcAddress);
glGenBuffers(1, &m_vertexBuffer);
glBindBuffer(GL_ARRAY_BUFFER, m_vertexBuffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
m_shaderProgram = MakeShaderProgram(vs, fs);
if (m_shaderProgram == 0u) {
return -1;
}
vpos_loc = glGetAttribLocation(m_shaderProgram , "vertexIn");
glEnableVertexAttribArray(vpos_loc);
glVertexAttribPointer(vpos_loc, 2, GL_FLOAT, GL_FALSE,
sizeof(float) * 4, (void*) 0);
tbuf_loc = glGetAttribLocation(m_shaderProgram , "textureIn");
glEnableVertexAttribArray(tbuf_loc);
glVertexAttribPointer(tbuf_loc, 2, GL_FLOAT, GL_FALSE,
sizeof(float) * 4, (void*) (sizeof(float) * 2));
//Init Texture
glGenTextures(3, m_textures);
glBindTexture(GL_TEXTURE_2D, m_textures[0]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_2D, m_textures[1]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_2D, m_textures[2]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glfwMakeContextCurrent(NULL);
return 0;
}
void LoadTextureDrawHelper(
TEXTURE_DRAW_HELPER* helper,
const float base_texture_coord[8],
char* utf8_vertex_shader_file_path,
char* utf8_fragment_shader_file_path,
APPLICATION* application
)
{
char *system_path;
MakeShaderProgram(&helper->program.base_data);
system_path = g_locale_from_utf8(utf8_vertex_shader_file_path, -1, NULL, NULL, NULL);
LoadTextureDrawHelperProgram(&helper->program, system_path, GL_VERTEX_SHADER);
g_free(system_path);
system_path = g_locale_from_utf8(utf8_fragment_shader_file_path, -1, NULL, NULL, NULL);
LoadTextureDrawHelperProgram(&helper->program, system_path, GL_FRAGMENT_SHADER);
g_free(system_path);
if(TextureDrawHelperProgramLink(&helper->program) != FALSE)
{
float positions[8] = {0, 0, 1, 0, 1, -1, 0, -1};
MakeVertexBundle(helper->bundle, VERTEX_BUNDLE_VERTEX_BUFFER, TEXTURE_DRAW_HELPER_PROGRAM_VERTEX_TYPE_POSITION,
GL_DYNAMIC_DRAW, positions, sizeof(positions));
(void)memcpy(positions, base_texture_coord, sizeof(positions));
MakeVertexBundle(helper->bundle, VERTEX_BUNDLE_VERTEX_BUFFER, TEXTURE_DRAW_HELPER_PROGRAM_VERTEX_TYPE_TEXTURE_COORD,
GL_STATIC_DRAW, positions, sizeof(positions));
(void)MakeVertexBundleLayout(helper->layout);
(void)VertexBundleLayoutBind(helper->layout);
TextureDrawHelperBindVertexBundle(helper, FALSE);
glEnableVertexAttribArray(TEXTURE_DRAW_HELPER_PROGRAM_VERTEX_TYPE_POSITION);
glEnableVertexAttribArray(TEXTURE_DRAW_HELPER_PROGRAM_VERTEX_TYPE_TEXTURE_COORD);
TextureDrawHelperUnbindVertexBundle(helper, FALSE);
(void)VertexBundleLayoutUnbind(helper->layout);
VertexBundleUnbind(VERTEX_BUNDLE_VERTEX_BUFFER);
}
}
