pthread_mutex_unlock(&lock);
}
+
+GLuint ResourcePool::create_2d_texture(GLint internal_format, GLsizei width, GLsizei height)
+{
+ // Find any reasonable format given the internal format; OpenGL validates it
+ // even though we give NULL as pointer.
+ GLenum format;
+ switch (internal_format) {
+ case GL_RGBA32F_ARB:
+ case GL_RGBA16F_ARB:
+ case GL_RGBA8:
+ case GL_SRGB8_ALPHA8:
+ format = GL_RGBA;
+ break;
+ case GL_RG32F:
+ case GL_RG16F:
+ format = GL_RG;
+ break;
+ case GL_LUMINANCE8:
+ format = GL_LUMINANCE;
+ break;
+ default:
+ // TODO: Add more here as needed.
+ assert(false);
+ }
+
+ GLuint texture_num;
+ glGenTextures(1, &texture_num);
+ check_error();
+ glBindTexture(GL_TEXTURE_2D, texture_num);
+ check_error();
+ glTexImage2D(GL_TEXTURE_2D, 0, internal_format, width, height, 0, format, GL_UNSIGNED_BYTE, NULL);
+ check_error();
+ glBindTexture(GL_TEXTURE_2D, 0);
+ check_error();
+
+ return texture_num;
+}
+
+void ResourcePool::release_2d_texture(GLuint texture_num)
+{
+ glDeleteTextures(1, &texture_num);
+ check_error();
+}