enum Gdk::MemoryFormat

Overview

Gdk::MemoryFormat describes formats that image data can have in memory.

It describes formats by listing the contents of the memory passed to it. So GDK_MEMORY_A8R8G8B8 will be 1 byte (8 bits) of alpha, followed by a byte each of red, green and blue. It is not endian-dependent, so CAIRO_FORMAT_ARGB32 is represented by different Gdk::MemoryFormats on architectures with different endiannesses.

Its naming is modelled after VkFormat for details).

Defined in:

lib/gi-crystal/src/auto/gdk-4.0/gdk.cr

Enum Members

B8g8r8a8Premultiplied = 0_u32

4 bytes; for blue, green, red, alpha. The color values are premultiplied with the alpha value.

A8r8g8b8Premultiplied = 1_u32

4 bytes; for alpha, red, green, blue. The color values are premultiplied with the alpha value.

R8g8b8a8Premultiplied = 2_u32

4 bytes; for red, green, blue, alpha The color values are premultiplied with the alpha value.

B8g8r8a8 = 3_u32

4 bytes; for blue, green, red, alpha.

A8r8g8b8 = 4_u32

4 bytes; for alpha, red, green, blue.

R8g8b8a8 = 5_u32

4 bytes; for red, green, blue, alpha.

A8b8g8r8 = 6_u32

4 bytes; for alpha, blue, green, red.

R8g8b8 = 7_u32

3 bytes; for red, green, blue. The data is opaque.

B8g8r8 = 8_u32

3 bytes; for blue, green, red. The data is opaque.

R16g16b16 = 9_u32

3 guint16 values; for red, green, blue. Since: 4.6

R16g16b16a16Premultiplied = 10_u32

4 guint16 values; for red, green, blue, alpha. The color values are premultiplied with the alpha value. Since: 4.6

R16g16b16a16 = 11_u32

4 guint16 values; for red, green, blue, alpha. Since: 4.6

R16g16b16Float = 12_u32

3 half-float values; for red, green, blue. The data is opaque. Since: 4.6

R16g16b16a16FloatPremultiplied = 13_u32

4 half-float values; for red, green, blue and alpha. The color values are premultiplied with the alpha value. Since: 4.6

R16g16b16a16Float = 14_u32

4 half-float values; for red, green, blue and alpha. Since: 4.6

R32g32b32Float = 15_u32

R32g32b32a32FloatPremultiplied = 16_u32

4 float values; for red, green, blue and alpha. The color values are premultiplied with the alpha value. Since: 4.6

R32g32b32a32Float = 17_u32

4 float values; for red, green, blue and alpha. Since: 4.6

NFormats = 18_u32

The number of formats. This value will change as more formats get added, so do not rely on its concrete integer.

Class Method Summary

• .g_type : UInt64

  Returns the type id (GType) registered in GLib type system.

Instance Method Summary

• #a8b8g8r8?

  Returns true if this enum value equals A8b8g8r8

• #a8r8g8b8?

  Returns true if this enum value equals A8r8g8b8

• #a8r8g8b8_premultiplied?

  Returns true if this enum value equals A8r8g8b8Premultiplied

• #b8g8r8?

  Returns true if this enum value equals B8g8r8

• #b8g8r8a8?

  Returns true if this enum value equals B8g8r8a8

• #b8g8r8a8_premultiplied?

  Returns true if this enum value equals B8g8r8a8Premultiplied

• #n_formats?

  Returns true if this enum value equals NFormats

• #r16g16b16?

  Returns true if this enum value equals R16g16b16

• #r16g16b16_float?

  Returns true if this enum value equals R16g16b16Float

• #r16g16b16a16?

  Returns true if this enum value equals R16g16b16a16

• #r16g16b16a16_float?

  Returns true if this enum value equals R16g16b16a16Float

• #r16g16b16a16_float_premultiplied?

  Returns true if this enum value equals R16g16b16a16FloatPremultiplied

• #r16g16b16a16_premultiplied?

  Returns true if this enum value equals R16g16b16a16Premultiplied

• #r32g32b32_float?

  Returns true if this enum value equals R32g32b32Float

• #r32g32b32a32_float?

  Returns true if this enum value equals R32g32b32a32Float

• #r32g32b32a32_float_premultiplied?

  Returns true if this enum value equals R32g32b32a32FloatPremultiplied

• #r8g8b8?

  Returns true if this enum value equals R8g8b8

• #r8g8b8a8?

  Returns true if this enum value equals R8g8b8a8

• #r8g8b8a8_premultiplied?

  Returns true if this enum value equals R8g8b8a8Premultiplied

Class Method Detail

Instance Method Detail