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import struct
def test_1(ctx):
size = (4, 4)
rbo1 = ctx.renderbuffer(size, dtype='f1')
rbo2 = ctx.renderbuffer(size)
rbo3 = ctx.renderbuffer(size)
fbo1 = ctx.framebuffer(rbo1)
fbo2 = ctx.framebuffer(rbo2)
fbo3 = ctx.framebuffer(rbo3)
fbo4 = ctx.framebuffer([rbo1, rbo2, rbo3])
fbo1.clear(1.0, 0.0, 0.0, 1.0)
fbo2.clear(0.0, 1.0, 0.0, 1.0)
fbo3.clear(0.0, 0.0, 1.0, 1.0)
buf = ctx.buffer(reserve=64)
fbo4.read_into(buf, attachment=0, components=4, dtype='f1')
assert buf.read() == b'\xff\x00\x00\xff' * 16
fbo4.read_into(buf, attachment=1, components=4, dtype='f1')
assert buf.read() == b'\x00\xff\x00\xff' * 16
fbo4.read_into(buf, attachment=2, components=4, dtype='f1')
assert buf.read() == b'\x00\x00\xff\xff' * 16
def test_2(ctx):
pixels = b'\xFF\x00\x00\xFF\x00\xFF\x00\xFF\x00\x00\xFF\xFF\xFF\xFF\xFF\xFF'
texture = ctx.texture((2, 2), 4)
buf = ctx.buffer(pixels)
texture.write(buf)
assert texture.read() == pixels
def test_3(ctx):
pixels = struct.pack(
'4f4f4f4f',
1.0, 0.0, 0.0, 1.0,
0.0, 1.0, 0.0, 1.0,
0.0, 0.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0,
)
buf = ctx.buffer(pixels)
texture = ctx.texture((2, 2), 4, dtype='f4')
texture.write(buf)
assert texture.read() == pixels
def test_4(ctx):
pixels = b'\xFF\x00\x00\xFF\x00\xFF\x00\xFF\x00\x00\xFF\xFF\xFF\xFF\xFF\xFF'
texture = ctx.texture((2, 2), 4, pixels)
buf = ctx.buffer(reserve=len(pixels))
texture.read_into(buf)
assert buf.read() == pixels
def test_5(ctx):
pixels = struct.pack(
'4f4f4f4f',
1.0, 0.0, 0.0, 1.0,
0.0, 1.0, 0.0, 1.0,
0.0, 0.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0,
)
texture = ctx.texture((2, 2), 4, pixels, dtype='f4')
buf = ctx.buffer(reserve=len(pixels))
texture.read_into(buf)
assert buf.read() == pixels
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