Adding modding folder with a hacked build.

2026-09-26 08:53:08 +02:00
parent cdb960dc71
commit c91080aba7
755 changed files with 50424 additions and 0 deletions
@@ -0,0 +1,99 @@
+package compression_test
+
+import (
+	"testing"
+
+	"github.com/inkyblackness/hacked/ss1/content/movie/internal/compression"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/suite"
+)
+
+type BitstreamWriterSuite struct {
+	suite.Suite
+
+	writer compression.BitstreamWriter
+}
+
+func TestBitstreamWriter(t *testing.T) {
+	suite.Run(t, new(BitstreamWriterSuite))
+}
+
+func (suite *BitstreamWriterSuite) SetupTest() {
+	suite.writer = compression.BitstreamWriter{}
+}
+
+func (suite *BitstreamWriterSuite) TestWriteMoreThan32BitsPanics() {
+	assert.Panics(suite.T(), func() { suite.whenWriting(33, 0) })
+}
+
+func (suite *BitstreamWriterSuite) TestWriteZeroBitsIsIgnored() {
+	suite.whenWriting(0, 1)
+	suite.thenBufferShouldBe([]byte{})
+}
+
+func (suite *BitstreamWriterSuite) TestWriteOneBit() {
+	suite.whenWriting(1, 1)
+	suite.thenBufferShouldBe([]byte{0x80})
+}
+
+func (suite *BitstreamWriterSuite) TestWriteEightBits() {
+	suite.whenWriting(8, 0xEF)
+	suite.thenBufferShouldBe([]byte{0xEF})
+}
+
+func (suite *BitstreamWriterSuite) TestWriteTwelveBits() {
+	suite.whenWriting(12, 0xFEF)
+	suite.thenBufferShouldBe([]byte{0xFE, 0xF0})
+}
+
+func (suite *BitstreamWriterSuite) TestWriteOneBitTwice() {
+	suite.givenWritten(1, 1)
+	suite.whenWriting(1, 1)
+	suite.thenBufferShouldBe([]byte{0xC0})
+}
+
+func (suite *BitstreamWriterSuite) TestWriteArbitrary1() {
+	suite.givenWritten(1, 1)
+	suite.givenWritten(10, 0x2AA)
+	suite.whenWriting(16, 0xFFFF)
+	suite.thenBufferShouldBe([]byte{0xD5, 0x5F, 0xFF, 0xE0}) // [1 10 10101] [010 11111] [11111111] [111 00000]
+}
+
+func (suite *BitstreamWriterSuite) TestWriteArbitrary2() {
+	suite.givenWritten(1, 1)
+	suite.givenWritten(10, 0x2AA)
+	suite.whenWriting(24, 0xFFFFFF)
+	suite.thenBufferShouldBe([]byte{0xD5, 0x5F, 0xFF, 0xFF, 0xE0}) // extension of Arbitrary1
+}
+
+func (suite *BitstreamWriterSuite) TestWriteLessBitsThanGiven() {
+	suite.givenWritten(4, 0x0)
+	suite.whenWriting(8, 0xFFF)
+	suite.thenBufferShouldBe([]byte{0x0F, 0xF0})
+}
+
+func (suite *BitstreamWriterSuite) TestWriteArbitrary3() {
+	suite.givenWritten(1, 1)
+	suite.givenWritten(10, 0x2AA)
+	suite.whenWriting(32, 0xFFFFFFFF)
+	suite.thenBufferShouldBe([]byte{0xD5, 0x5F, 0xFF, 0xFF, 0xFF, 0xE0}) // extension of Arbitrary1+2
+}
+
+func (suite *BitstreamWriterSuite) givenWritten(bits uint, value uint32) {
+	suite.writer.Write(bits, value)
+}
+
+func (suite *BitstreamWriterSuite) whenWriting(bits uint, value uint32) {
+	suite.writer.Write(bits, value)
+}
+
+func (suite *BitstreamWriterSuite) thenBufferShouldBe(expected []byte) {
+	suite.T().Helper()
+	buf := suite.writer.Buffer()
+	if len(expected) == 0 {
+		assert.Equal(suite.T(), 0, len(buf))
+	} else {
+		assert.Equal(suite.T(), expected, buf)
+	}
+}