java - Drawing textured quads OpenGL not working -

i trying render group of textured quads.

i can colored quads render, not textured ones (screen comes empty.)

i using lwjgl , pngdecoder.

code initializing ogl:

gl11.glmatrixmode(gl11.gl_projection); gl11.glloadidentity(); gl11.glortho(0, 800, 0, 600, 1, -1); gl11.glmatrixmode(gl11.gl_modelview); gl11.glenable(gl11.gl_texture_2d); 

code decoding image:

bytebuffer buffer = null; inputstream in = classloader.getsystemresourceasstream(filename); try {     buffer = decodestreamtobuffer(in); } {     in.close(); } return buffer; 

my decodestreamtobuffer(inputstream in):

pngdecoder decoder; bytebuffer buf = null; try {     decoder = new pngdecoder(in);      buf = bytebuffer.allocatedirect(4*decoder.getwidth()*decoder.getheight());     decoder.decode(buf, decoder.getwidth()*4, format.rgba);     buf.flip(); } catch (exception e) {     e.printstacktrace(); }  return buf; 

my rendering code:

    gl11.glclear(gl11.gl_color_buffer_bit | gl11.gl_depth_buffer_bit);     gl11.glcolor3f(0.5f, 0.5f, 1.0f); //still there test color quads.      // draw quad     gl11.glpushmatrix();         gl11.gltranslatef(screencenter.getx(), screencenter.gety(), 0);         gl11.glscalef(1f, 0.5f, 1f);         gl11.glrotatef(camrotation, 0f, 0f, 1f);         gl11.gltranslatef(-screencenter.getx(), -screencenter.gety(), 0);          gl11.glbindtexture(gl11.gl_texture_2d, texture);         gl11.glbegin(gl11.gl_texture_2d);              gl11.gltexcoord2f(0.0f, 0.0f);             gl11.glvertex2f(0, 0);              gl11.gltexcoord2f(1.0f, 0.0f);             gl11.glvertex2f(32, 0);              gl11.gltexcoord2f(1.0f, 1.0f);             gl11.glvertex2f(32, 32);              gl11.gltexcoord2f(0.0f, 1.0f);             gl11.glvertex2f(0, 32);          gl11.glend();      gl11.glpopmatrix(); 

when leave texture binding out , change gl_texture_2d gl_modelview works... color instead of texture. making noob mistake here?

this wrong gl11.glbegin(gl11.gl_texture_2d);

the glbegin method primitive mode glenum.

thereby either use:

• gl_points
• gl_lines
• gl_line_strip
• gl_line_loop
• gl_triangles
• gl_triangle_strip
• gl_triangle_fan
• gl_quads
• gl_quad_strip
• gl_polygon

the mode use specify rendering. in case code gl_quads fix code need replace gl11.glbegin(gl11.gl_texture_2d); gl11.glbegin(gl11.gl_quads);.

extra

also take in mind glvertex, glnormal, gltexcoord, etc. methods deprecated , should not used. suppose use vbos , shaders. though if learning opengl keep using deprecated methods since , easy use when learning!