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pixel: add NewImageFromBytes() function to allow creating image from existing slice
Signed-off-by: deadprogram <ron@hybridgroup.com>
1 parent bcf3b84 commit ecae5e2

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2 files changed

+126
-10
lines changed

2 files changed

+126
-10
lines changed

‎pixel/image.go‎

Lines changed: 34 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -43,6 +43,40 @@ func NewImage[T Color](width, height int) Image[T] {
4343
}
4444
}
4545

46+
// NewImageFromBytes creates a new image of the given size using an existing data slice of bytes.
47+
func NewImageFromBytes[T Color](width, height int, buf []byte) Image[T] {
48+
if width < 0 || height < 0 || int(int16(width)) != width || int(int16(height)) != height {
49+
// The width/height are stored as 16-bit integers and should never be
50+
// negative.
51+
panic("NewImageFromBytes: width/height out of bounds")
52+
}
53+
var zeroColor T
54+
var data unsafe.Pointer
55+
switch {
56+
case zeroColor.BitsPerPixel()%8 == 0:
57+
// Typical formats like RGB888 and RGB565.
58+
// Each color starts at a whole byte offset from the start.
59+
if len(buf) != width*height*int(unsafe.Sizeof(zeroColor)) {
60+
panic("NewImageFromBytes: data slice size mismatch")
61+
}
62+
data = unsafe.Pointer(&buf[0])
63+
default:
64+
// Formats like RGB444 that have 12 bits per pixel.
65+
// We access these as bytes, so allocate the buffer as a byte slice.
66+
bufBits := width * height * zeroColor.BitsPerPixel()
67+
bufBytes := (bufBits + 7) / 8
68+
if len(buf) != bufBytes {
69+
panic("NewImageFromBytes: data slice size mismatch")
70+
}
71+
data = unsafe.Pointer(&buf[0])
72+
}
73+
return Image[T]{
74+
width: int16(width),
75+
height: int16(height),
76+
data: data,
77+
}
78+
}
79+
4680
// Rescale returns a new Image buffer based on the img buffer.
4781
// The contents is undefined after the Rescale operation, and any modification
4882
// to the returned image will overwrite the underlying image buffer in undefined

‎pixel/image_test.go‎

Lines changed: 92 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -66,9 +66,9 @@ func TestImageRGB444BE(t *testing.T) {
6666
}
6767

6868
func TestImageMonochrome(t *testing.T) {
69-
image := pixel.NewImage[pixel.Monochrome](5, 3)
70-
if width, height := image.Size(); width != 5 && height != 3 {
71-
t.Errorf("image.Size(): expected 5, 3 but got %d, %d", width, height)
69+
image := pixel.NewImage[pixel.Monochrome](128, 64)
70+
if width, height := image.Size(); width != 128 && height != 64 {
71+
t.Errorf("image.Size(): expected 128, 64 but got %d, %d", width, height)
7272
}
7373
for _, expected := range []color.RGBA{
7474
{R: 0xff, G: 0xff, B: 0xff},
@@ -80,19 +80,101 @@ func TestImageMonochrome(t *testing.T) {
8080
{B: 0x00, A: 0xff},
8181
} {
8282
encoded := pixel.NewColor[pixel.Monochrome](expected.R, expected.G, expected.B)
83-
image.Set(4, 2, encoded)
84-
actual := image.Get(4, 2).RGBA()
83+
image.Set(5, 3, encoded)
84+
actual := image.Get(5, 3).RGBA()
8585
switch {
86-
case expected.R == 0 && expected.G == 0 && expected.B == 0:
87-
// should be false eg black
88-
if actual.R != 0 || actual.G != 0 || actual.B != 0 {
89-
t.Errorf("failed to roundtrip color: expected %v but got %v", expected, actual)
90-
}
9186
case int(expected.R)+int(expected.G)+int(expected.B) > 128*3:
9287
// should be true eg white
9388
if actual.R == 0 || actual.G == 0 || actual.B == 0 {
9489
t.Errorf("failed to roundtrip color: expected %v but got %v", expected, actual)
9590
}
91+
default:
92+
// should be false eg black
93+
if actual.R != 0 || actual.G != 0 || actual.B != 0 {
94+
t.Errorf("failed to roundtrip color: expected %v but got %v", expected, actual)
95+
}
96+
}
97+
}
98+
}
99+
100+
// 128x128
101+
var rprofile = []byte{
102+
0x00, 0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x44, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00,
103+
0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0x80, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x80, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x80, 0x00,
104+
0x00, 0x07, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xC0, 0x03, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xC0, 0x00, 0x00, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF8, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC, 0x00,
105+
0x00, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xE8, 0x17, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF8, 0x00, 0x07, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xC0,
106+
0x3F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC, 0x3F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE,
107+
0x3F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC, 0x3F, 0xFF, 0xFF, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xFF, 0xFF, 0xFE,
108+
0x3F, 0xFF, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, 0xFF, 0xFE, 0x3F, 0xFF, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, 0xFF, 0xFC,
109+
0x3F, 0xFF, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, 0xFF, 0xFE, 0x3F, 0xFF, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, 0xFF, 0xFE,
110+
0x3F, 0xFF, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0xFF, 0xFE, 0x3F, 0xFF, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, 0xFF, 0xFC,
111+
0x3F, 0xFF, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0xFF, 0xFE, 0x3F, 0xFF, 0xFC, 0x00, 0x00, 0x00, 0x00, 0xBF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x3F, 0xFF, 0xFE,
112+
0x3F, 0xFF, 0xFC, 0x01, 0xF8, 0x00, 0x5F, 0xFF, 0xFF, 0xFC, 0x00, 0x02, 0x80, 0x1F, 0xFF, 0xFE, 0x3F, 0xFF, 0xFC, 0x03, 0xFE, 0x03, 0xFF, 0xFD, 0xBF, 0xFF, 0x80, 0x1F, 0xE0, 0x3F, 0xFF, 0xFC,
113+
0x3F, 0xFF, 0xFC, 0x03, 0xFE, 0x01, 0xFF, 0xF7, 0x6B, 0xFF, 0x80, 0x1F, 0xC0, 0x1F, 0xFF, 0xFE, 0x02, 0xFF, 0xFC, 0x03, 0xDF, 0x17, 0xFA, 0x00, 0x00, 0x37, 0xF0, 0x3F, 0xE0, 0x1F, 0xFF, 0xD0,
114+
0x00, 0x07, 0xFC, 0x07, 0x07, 0xBF, 0x00, 0x00, 0x00, 0x01, 0xFE, 0xF8, 0x78, 0x3F, 0xF8, 0x00, 0x00, 0x01, 0xFC, 0x06, 0x1B, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x3F, 0xEA, 0x78, 0x1F, 0x80, 0x00,
115+
0x00, 0x01, 0xFC, 0x03, 0x1B, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x3F, 0xE2, 0x68, 0x1F, 0xC0, 0x00, 0x00, 0x01, 0xFC, 0x07, 0x5B, 0xE8, 0x00, 0x00, 0x00, 0x00, 0x07, 0xC4, 0x38, 0x1F, 0x80, 0x00,
116+
0x00, 0x01, 0xF8, 0x03, 0x3F, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF7, 0x78, 0x3F, 0xC0, 0x00, 0x00, 0x01, 0xFC, 0x03, 0x1F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7C, 0x68, 0x1F, 0x80, 0x00,
117+
0x00, 0x01, 0xFC, 0x07, 0x9F, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFC, 0x70, 0x1F, 0x80, 0x00, 0x00, 0x01, 0xFC, 0x03, 0x9E, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x3F, 0x3E, 0xE8, 0x1F, 0xC0, 0x00,
118+
0x00, 0x01, 0xFC, 0x01, 0xFF, 0xFF, 0xE0, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xE0, 0x1F, 0x80, 0x00, 0x00, 0x01, 0xF8, 0x01, 0xFF, 0x55, 0xF8, 0x00, 0x00, 0x03, 0xEA, 0xFF, 0xC0, 0x1F, 0xC0, 0x00,
119+
0x00, 0x01, 0xFC, 0x01, 0xFE, 0xAF, 0xF0, 0x00, 0x00, 0x03, 0xFD, 0xBF, 0xE0, 0x1F, 0x80, 0x00, 0x00, 0x01, 0xFC, 0x01, 0xF8, 0x00, 0x7C, 0x00, 0x00, 0x07, 0x80, 0x03, 0xE0, 0x1F, 0xC0, 0x00,
120+
0x00, 0x01, 0xFC, 0x03, 0xC1, 0xE0, 0x3E, 0x00, 0x00, 0x1F, 0x03, 0xC0, 0xF0, 0x1F, 0x80, 0x00, 0x00, 0x00, 0xF8, 0x07, 0x82, 0xF8, 0x0F, 0x00, 0x00, 0x3E, 0x05, 0xE0, 0x7C, 0x1F, 0x80, 0x00,
121+
0x00, 0x01, 0xFC, 0x07, 0x01, 0xF8, 0x17, 0x00, 0x00, 0x3C, 0x09, 0xE0, 0x78, 0x1F, 0xC0, 0x00, 0x00, 0x03, 0xFC, 0x0F, 0x06, 0xFC, 0x07, 0x80, 0x00, 0x7C, 0x1D, 0xE0, 0x3C, 0x1F, 0xC0, 0x00,
122+
0x00, 0xFF, 0xFC, 0x1E, 0x03, 0xFC, 0x03, 0x80, 0x00, 0x78, 0x1F, 0xE0, 0x1E, 0x1F, 0xFE, 0x80, 0x2F, 0xFF, 0xFC, 0x1C, 0x07, 0xF8, 0x01, 0x80, 0x00, 0x60, 0x1F, 0xE0, 0x16, 0x1F, 0xFF, 0xF8,
123+
0x1F, 0xFF, 0xF8, 0x3E, 0x07, 0xFC, 0x01, 0xC0, 0x00, 0xE8, 0x1F, 0xE0, 0x1E, 0x1F, 0xFF, 0xEC, 0x3F, 0xFF, 0xFC, 0x3C, 0x03, 0xF8, 0x01, 0xC0, 0x00, 0xE0, 0x17, 0xE0, 0x07, 0x1F, 0xFF, 0xFE,
124+
0x3F, 0xFF, 0xFC, 0x38, 0x03, 0xE8, 0x00, 0xC0, 0x00, 0xC0, 0x07, 0xC0, 0x03, 0x1F, 0xFF, 0xFC, 0x3F, 0xFF, 0xFC, 0x38, 0x00, 0xC0, 0x00, 0xE0, 0x00, 0xC0, 0x00, 0x00, 0x03, 0x9F, 0xFF, 0xFE,
125+
0x3F, 0xFF, 0xFC, 0x78, 0x01, 0xE0, 0x00, 0xC0, 0x00, 0xC0, 0x00, 0x00, 0x03, 0x1F, 0xFF, 0xFC, 0x3F, 0xFF, 0xFC, 0x38, 0x00, 0x00, 0x00, 0xE0, 0x01, 0xC0, 0x00, 0x00, 0x03, 0x9F, 0xFF, 0xFE,
126+
0x3F, 0xFF, 0xF8, 0x78, 0x00, 0x00, 0x00, 0xE0, 0x01, 0xC0, 0x00, 0x00, 0x03, 0x9F, 0xFF, 0xFE, 0x3F, 0xFF, 0xFC, 0x68, 0x00, 0x00, 0x00, 0xE0, 0x01, 0xC0, 0x00, 0x00, 0x03, 0x9F, 0xFF, 0xFC,
127+
0x3F, 0xFF, 0xFC, 0x70, 0x00, 0x00, 0x00, 0xE0, 0x01, 0xC0, 0x00, 0x00, 0x01, 0x9F, 0xFF, 0xFE, 0x3F, 0xFF, 0xFC, 0x78, 0x00, 0x00, 0x00, 0xE0, 0x01, 0xC0, 0x00, 0x00, 0x03, 0x9F, 0xFF, 0xFE,
128+
0x3F, 0xFF, 0xFC, 0x68, 0x00, 0x00, 0x00, 0xE0, 0x01, 0xC0, 0x00, 0x00, 0x03, 0x9F, 0xFF, 0xFE, 0x3F, 0xFF, 0xF8, 0x70, 0x00, 0x00, 0x00, 0xC0, 0x01, 0xC0, 0x00, 0x00, 0x01, 0x9F, 0xFF, 0xFC,
129+
0x3F, 0xFF, 0xFC, 0x68, 0x00, 0x00, 0x00, 0xE0, 0x01, 0xC0, 0x00, 0x00, 0x03, 0x9F, 0xFF, 0xFE, 0x3F, 0xFF, 0xFC, 0x38, 0x00, 0x00, 0x00, 0xC0, 0x00, 0xC0, 0x00, 0x00, 0x03, 0x9F, 0xFF, 0xFE,
130+
0x07, 0xFF, 0xFC, 0x78, 0x00, 0x00, 0x00, 0xC0, 0x80, 0xC0, 0x00, 0x00, 0x03, 0x1F, 0xFF, 0xF8, 0x00, 0x37, 0xF8, 0x38, 0x00, 0x00, 0x01, 0xC7, 0xF0, 0xE0, 0x00, 0x00, 0x03, 0x9F, 0xFE, 0x00,
131+
0x00, 0x5F, 0xFC, 0x38, 0x00, 0x00, 0x01, 0xC3, 0xE8, 0xE0, 0x00, 0x00, 0x03, 0x1F, 0xFB, 0x00, 0x00, 0x01, 0xFC, 0x3C, 0x00, 0x00, 0x01, 0xC7, 0xF8, 0xE0, 0x00, 0x00, 0x07, 0x1F, 0xC0, 0x00,
132+
0x00, 0x01, 0xFC, 0x3C, 0x00, 0x00, 0x03, 0x9F, 0xFC, 0x70, 0x00, 0x00, 0x07, 0x1F, 0x80, 0x00, 0x00, 0x01, 0xF8, 0x1E, 0x00, 0x00, 0x03, 0xBF, 0xFE, 0x78, 0x00, 0x00, 0x1E, 0x1F, 0xC0, 0x00,
133+
0x00, 0x01, 0xFC, 0x1E, 0x00, 0x00, 0x07, 0x9F, 0xFF, 0x78, 0x00, 0x00, 0x16, 0x1F, 0x80, 0x00, 0x00, 0x01, 0xFC, 0x1E, 0x00, 0x00, 0x07, 0x73, 0xC3, 0x3C, 0x00, 0x00, 0x1E, 0x1F, 0xC0, 0x00,
134+
0x00, 0x01, 0xFC, 0x1F, 0x00, 0x00, 0x1E, 0x60, 0x01, 0x9E, 0x00, 0x00, 0x3C, 0x1F, 0x80, 0x00, 0x00, 0x01, 0xF8, 0x1F, 0x80, 0x00, 0x7E, 0x40, 0x01, 0x17, 0x80, 0x00, 0x7E, 0x1F, 0xC0, 0x00,
135+
0x00, 0x01, 0xFC, 0x1F, 0x80, 0x00, 0x3C, 0x40, 0x01, 0x9F, 0x00, 0x00, 0x7C, 0x1F, 0x80, 0x00, 0x00, 0x01, 0xFC, 0x1F, 0xC0, 0x00, 0xFC, 0x40, 0x01, 0x07, 0xC0, 0x00, 0xFC, 0x1F, 0xC0, 0x00,
136+
0x00, 0x01, 0xFC, 0x1F, 0xF8, 0x0B, 0xE8, 0x7B, 0xFF, 0x81, 0xF8, 0x03, 0xFC, 0x1F, 0x80, 0x00, 0x00, 0x03, 0xF8, 0x1C, 0xFF, 0xFF, 0xC0, 0x3F, 0xFE, 0x00, 0xFF, 0xFF, 0xDE, 0x1F, 0xC0, 0x00,
137+
0x00, 0x05, 0xFC, 0x1C, 0xFF, 0xFF, 0x80, 0x7F, 0xDE, 0x00, 0xFF, 0x7F, 0xDC, 0x1F, 0x80, 0x00, 0x00, 0xFF, 0xFC, 0x1C, 0x3F, 0xFE, 0x00, 0x0E, 0xB8, 0x00, 0x3F, 0xFF, 0x1C, 0x1F, 0xFC, 0x00,
138+
0x2F, 0xFF, 0xF8, 0x1C, 0x00, 0x00, 0x00, 0x04, 0x98, 0x00, 0x01, 0x00, 0x1E, 0x1F, 0xFF, 0xF4, 0x3F, 0xFF, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x06, 0x98, 0x00, 0x00, 0x00, 0x1C, 0x1F, 0xFF, 0xFE,
139+
0x3F, 0xFF, 0xFC, 0x1C, 0x00, 0x00, 0x00, 0x06, 0x98, 0x00, 0x00, 0x00, 0x1E, 0x1F, 0xFF, 0xFE, 0x7F, 0xFF, 0xF8, 0x3C, 0x00, 0x00, 0x00, 0x02, 0xB8, 0x00, 0x00, 0x00, 0x1C, 0x1F, 0xFF, 0xFE,
140+
0x3F, 0xFF, 0xFC, 0x1C, 0x00, 0x00, 0x00, 0x03, 0xE8, 0x00, 0x00, 0x00, 0x1C, 0x1F, 0xFF, 0xFE, 0x7F, 0xFF, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1E, 0x1F, 0xFF, 0xFE,
141+
0x3F, 0xFF, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x1C, 0x1F, 0xFF, 0xFE, 0x7F, 0xFF, 0xF8, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1E, 0x1F, 0xFF, 0xFE,
142+
0x3F, 0xFF, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1C, 0x1F, 0xFF, 0xFE, 0x7F, 0xFF, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1E, 0x1F, 0xFF, 0xFE,
143+
0x3F, 0xFF, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1C, 0x1F, 0xFF, 0xFE, 0x7F, 0xFF, 0xF8, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1C, 0x1F, 0xFF, 0xFE,
144+
0x7F, 0xFF, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1E, 0x1F, 0xFF, 0xFE, 0x3F, 0xFF, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1C, 0x1F, 0xFF, 0xFE,
145+
0x7F, 0xFF, 0xFC, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, 0x1F, 0xFF, 0xFE, 0x0B, 0xFF, 0xF8, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1C, 0x1F, 0xFF, 0xF8,
146+
0x00, 0x7F, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1E, 0x1F, 0xFE, 0x00, 0x00, 0x01, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1C, 0x1F, 0xC0, 0x00,
147+
0x00, 0x03, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, 0x1F, 0x80, 0x00, 0x00, 0x01, 0xF8, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1C, 0x1F, 0xC0, 0x00,
148+
0x00, 0x01, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1E, 0x1F, 0x80, 0x00, 0x00, 0x01, 0xFC, 0x38, 0x15, 0xB7, 0x80, 0x00, 0x00, 0x3E, 0x00, 0x00, 0x1C, 0x1F, 0xC0, 0x00,
149+
0x00, 0x01, 0xF8, 0x3C, 0x16, 0xAB, 0x00, 0x00, 0x00, 0x52, 0x00, 0x00, 0x16, 0x1F, 0x80, 0x00, 0x00, 0x01, 0xFC, 0x3C, 0x3F, 0xFB, 0x80, 0x00, 0x00, 0xFF, 0x80, 0x00, 0x1C, 0x1F, 0xC0, 0x00,
150+
0x00, 0x01, 0xFC, 0x3C, 0x1F, 0xE9, 0x00, 0x00, 0x01, 0xF7, 0x80, 0x00, 0x1E, 0x1F, 0x80, 0x00, 0x00, 0x01, 0xF8, 0x3C, 0x03, 0x82, 0x1D, 0xC6, 0x39, 0xC0, 0x07, 0x00, 0x14, 0x1F, 0xC0, 0x00,
151+
0x00, 0x01, 0xFC, 0x3C, 0x03, 0x87, 0x14, 0x85, 0x15, 0xC1, 0x03, 0x80, 0x1E, 0x1F, 0x80, 0x00, 0x00, 0x01, 0xFC, 0x3C, 0x03, 0x87, 0x9F, 0xE6, 0x3D, 0xC0, 0x1F, 0xC0, 0x1C, 0x1F, 0xC0, 0x00,
152+
0x00, 0xBF, 0xF8, 0x3C, 0x03, 0x83, 0x9F, 0xE7, 0x3F, 0x8D, 0x1E, 0xC0, 0x16, 0x1F, 0xD4, 0x00, 0x17, 0xFF, 0xFC, 0x3C, 0x03, 0x83, 0x9E, 0xE7, 0x79, 0xD7, 0xBC, 0xE0, 0x1C, 0x1F, 0xFF, 0xE8,
153+
0x1F, 0xFF, 0xFC, 0x3C, 0x03, 0x83, 0x9C, 0xE3, 0x3F, 0x9F, 0xBC, 0xE0, 0x1E, 0x1F, 0xFF, 0xD0, 0x3F, 0xFF, 0xF8, 0x3C, 0x03, 0x83, 0x9E, 0xE7, 0x79, 0xC7, 0xBC, 0xE0, 0x16, 0x1F, 0xFF, 0xFE,
154+
0x3F, 0xFF, 0xFC, 0x3C, 0x03, 0x83, 0xBC, 0xE3, 0xF9, 0xC3, 0xBC, 0xE0, 0x1C, 0x1F, 0xFF, 0xFC, 0x3F, 0xFF, 0xFC, 0x3C, 0x03, 0x83, 0x9E, 0xEB, 0xE9, 0xE3, 0xBD, 0xE0, 0x1E, 0x1F, 0xFF, 0xFE,
155+
0x3F, 0xFF, 0xF8, 0x3C, 0x03, 0x83, 0x9C, 0xE3, 0xF1, 0xC3, 0x9C, 0xC0, 0x1C, 0x1F, 0xFF, 0xFC, 0x3F, 0xFF, 0xFC, 0x3C, 0x03, 0x83, 0x9E, 0xE9, 0xE0, 0xFF, 0x9F, 0xC0, 0x16, 0x1F, 0xFF, 0xFE,
156+
0x3F, 0xFF, 0xFC, 0x3C, 0x03, 0x83, 0xBC, 0x61, 0xE0, 0xFF, 0x07, 0xC0, 0x1E, 0x1F, 0xFF, 0xFE, 0x3F, 0xFF, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x1C, 0x3F, 0xFF, 0xFC,
157+
0x3F, 0xFF, 0xF8, 0x3C, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x00, 0x00, 0x00, 0x1E, 0x1F, 0xFF, 0xFE, 0x3F, 0xFF, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x07, 0xC0, 0x00, 0x00, 0x00, 0x1C, 0x1F, 0xFF, 0xFC,
158+
0x3F, 0xFF, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x17, 0xC0, 0x00, 0x00, 0x00, 0x16, 0x3F, 0xFF, 0xFE, 0x3F, 0xFF, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x1E, 0x3F, 0xFF, 0xFE,
159+
0x3F, 0xFF, 0xFC, 0x3C, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x1E, 0x3F, 0xFF, 0xFC, 0x3F, 0xFF, 0xFE, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1C, 0x7F, 0xFF, 0xFE,
160+
0x2F, 0xFF, 0xFF, 0xBC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x80, 0x5F, 0xFF, 0xFF, 0xF8, 0x00, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00,
161+
0x01, 0x3F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xA0, 0x00, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0x00,
162+
0x00, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x80, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x80, 0x00,
163+
0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x80, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00,
164+
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
165+
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
166+
}
167+
168+
func TestImageFromBytesMonochrome(t *testing.T) {
169+
image := pixel.NewImageFromBytes[pixel.Monochrome](128, 128, rprofile)
170+
if width, height := image.Size(); width != 128 && height != 128 {
171+
t.Errorf("image.Size(): expected 128, 128 but got %d, %d", width, height)
172+
}
173+
174+
raw := image.RawBuffer()
175+
for i, b := range raw {
176+
if b != rprofile[i] {
177+
t.Fatalf("failed to roundtrip image. expected %v but got %v", rprofile[i], b)
96178
}
97179
}
98180
}

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