private static int DdsGetDxtColor1(int c, int a, DdsOrder order) { var r = Bit5[(c & 0xFC00) >> 11]; var g = Bit6[(c & 0x07E0) >> 5]; var b = Bit5[(c & 0x001F)]; return((a << order.AlphaShift) | (r << order.RedShift) | (g << order.GreenShift) | (b << order.BlueShift)); }
private static int ddsGetDXTColor1_1(int c0, int c1, int a, DdsOrder order) { // (c0+c1) / 2 var r = (Bit5[(c0 & 0xFC00) >> 11] + Bit5[(c1 & 0xFC00) >> 11]) / 2; var g = (Bit6[(c0 & 0x07E0) >> 5] + Bit6[(c1 & 0x07E0) >> 5]) / 2; var b = (Bit5[c0 & 0x001F] + Bit5[c1 & 0x001F]) / 2; return((a << order.AlphaShift) | (r << order.RedShift) | (g << order.GreenShift) | (b << order.BlueShift)); }
private static int DdsGetDxtColor(int c0, int c1, int a, int t, DdsOrder order) { switch (t) { case 0: return(DdsGetDxtColor1(c0, a, order)); case 1: return(DdsGetDxtColor1(c1, a, order)); case 2: return((c0 > c1) ? ddsGetDXTColor2_1(c0, c1, a, order) : ddsGetDXTColor1_1(c0, c1, a, order)); case 3: return((c0 > c1) ? ddsGetDXTColor2_1(c1, c0, a, order) : 0); } return(0); }
private static int[] DdsReadX8R8G8B8(int width, int height, int offset, byte[] buffer, DdsOrder order) { var index = offset; int[] pixels = new int [4 * width * height]; for (int i = 0; i < height * width; i++) { var b = buffer[index++] & 0xFF; var g = buffer[index++] & 0xFF; var r = buffer[index++] & 0xFF; var a = 255; index++; pixels[i] = (a << order.AlphaShift) | (r << order.RedShift) | (g << order.GreenShift) | (b << order.BlueShift); } return(pixels); }
private static int[] DdsReadX4R4G4B4(int width, int height, int offset, byte[] buffer, DdsOrder order) { var index = offset; var pixels = new int [4 * width * height]; for (var i = 0; i < height * width; i++) { var rgba = (buffer[index] & 0xFF) | (buffer[index + 1] & 0xFF) << 8; index += 2; var r = 17 * ((rgba & A4R4G4B4Masks[0]) >> 8); var g = 17 * ((rgba & A4R4G4B4Masks[1]) >> 4); var b = 17 * (rgba & A4R4G4B4Masks[2]); const int a = 255; pixels[i] = (a << order.AlphaShift) | (r << order.RedShift) | (g << order.GreenShift) | (b << order.BlueShift); } return(pixels); }
private static int[] DdsReadR5G6B5(int width, int height, int offset, byte[] buffer, DdsOrder order) { var index = offset; var pixels = new int [4 * width * height]; for (var i = 0; i < height * width; i++) { var rgba = (buffer[index] & 0xFF) | (buffer[index + 1] & 0xFF) << 8; index += 2; var r = Bit5[((rgba & R5G6B5Masks[0]) >> 11)]; var g = Bit6[((rgba & R5G6B5Masks[1]) >> 5)]; var b = Bit5[((rgba & R5G6B5Masks[2]))]; const int a = 255; pixels[i] = (a << order.AlphaShift) | (r << order.RedShift) | (g << order.GreenShift) | (b << order.BlueShift); } return(pixels); }
private static int[] DdsDecodeDxt5(int width, int height, int offset, byte[] buffer, DdsOrder order) { var pixels = new int [4 * width * height]; var index = offset; var w = (width + 3) / 4; var h = (height + 3) / 4; var alphaTable = new int[16]; for (var i = 0; i < h; i++) { for (var j = 0; j < w; j++) { // create alpha table var a0 = buffer[index++] & 0xFF; var a1 = buffer[index++] & 0xFF; var b0 = (buffer[index] & 0xFF) | (buffer[index + 1] & 0xFF) << 8 | (buffer[index + 2] & 0xFF) << 16; index += 3; var b1 = (buffer[index] & 0xFF) | (buffer[index + 1] & 0xFF) << 8 | (buffer[index + 2] & 0xFF) << 16; index += 3; alphaTable[0] = b0 & 0x07; alphaTable[1] = (b0 >> 3) & 0x07; alphaTable[2] = (b0 >> 6) & 0x07; alphaTable[3] = (b0 >> 9) & 0x07; alphaTable[4] = (b0 >> 12) & 0x07; alphaTable[5] = (b0 >> 15) & 0x07; alphaTable[6] = (b0 >> 18) & 0x07; alphaTable[7] = (b0 >> 21) & 0x07; alphaTable[8] = b1 & 0x07; alphaTable[9] = (b1 >> 3) & 0x07; alphaTable[10] = (b1 >> 6) & 0x07; alphaTable[11] = (b1 >> 9) & 0x07; alphaTable[12] = (b1 >> 12) & 0x07; alphaTable[13] = (b1 >> 15) & 0x07; alphaTable[14] = (b1 >> 18) & 0x07; alphaTable[15] = (b1 >> 21) & 0x07; var c0 = (buffer[index] & 0xFF) | (buffer[index + 1] & 0xFF) << 8; index += 2; var c1 = (buffer[index] & 0xFF) | (buffer[index + 1] & 0xFF) << 8; index += 2; for (var k = 0; k < 4; k++) { if (4 * i + k >= height) { break; } var t0 = buffer[index] & 0x03; var t1 = (buffer[index] & 0x0C) >> 2; var t2 = (buffer[index] & 0x30) >> 4; var t3 = (buffer[index++] & 0xC0) >> 6; pixels[4 * width * i + 4 * j + width * k + 0] = DdsGetDxtColor(c0, c1, DdsGetDxt5Alpha(a0, a1, alphaTable[4 * k + 0]), t0, order); if (4 * j + 1 >= width) { continue; } pixels[4 * width * i + 4 * j + width * k + 1] = DdsGetDxtColor(c0, c1, DdsGetDxt5Alpha(a0, a1, alphaTable[4 * k + 1]), t1, order); if (4 * j + 2 >= width) { continue; } pixels[4 * width * i + 4 * j + width * k + 2] = DdsGetDxtColor(c0, c1, DdsGetDxt5Alpha(a0, a1, alphaTable[4 * k + 2]), t2, order); if (4 * j + 3 >= width) { continue; } pixels[4 * width * i + 4 * j + width * k + 3] = DdsGetDxtColor(c0, c1, DdsGetDxt5Alpha(a0, a1, alphaTable[4 * k + 3]), t3, order); } } } return(pixels); }
private static int[] DdsDecodeDxt4(int width, int height, int offset, byte[] buffer, DdsOrder order) { return(DdsDecodeDxt5(width, height, offset, buffer, order)); }
private static int[] DdsDecodeDxt3(int width, int height, int offset, byte[] buffer, DdsOrder order) { var pixels = new int [4 * width * height]; var index = offset; var w = (width + 3) / 4; var h = (height + 3) / 4; var alphaTable = new int[16]; for (var i = 0; i < h; i++) { for (var j = 0; j < w; j++) { // create alpha table(4bit to 8bit) for (var k = 0; k < 4; k++) { var a0 = buffer[index++] & 0xFF; var a1 = buffer[index++] & 0xFF; // 4bit alpha to 8bit alpha alphaTable[4 * k + 0] = 17 * ((a0 & 0xF0) >> 4); alphaTable[4 * k + 1] = 17 * (a0 & 0x0F); alphaTable[4 * k + 2] = 17 * ((a1 & 0xF0) >> 4); alphaTable[4 * k + 3] = 17 * (a1 & 0x0F); } var c0 = (buffer[index] & 0xFF) | (buffer[index + 1] & 0xFF) << 8; index += 2; var c1 = (buffer[index] & 0xFF) | (buffer[index + 1] & 0xFF) << 8; index += 2; for (var k = 0; k < 4; k++) { if (4 * i + k >= height) { break; } var t0 = (buffer[index] & 0x03); var t1 = (buffer[index] & 0x0C) >> 2; var t2 = (buffer[index] & 0x30) >> 4; var t3 = (buffer[index++] & 0xC0) >> 6; pixels[4 * width * i + 4 * j + width * k + 0] = DdsGetDxtColor(c0, c1, alphaTable[4 * k + 0], t0, order); if (4 * j + 1 >= width) { continue; } pixels[4 * width * i + 4 * j + width * k + 1] = DdsGetDxtColor(c0, c1, alphaTable[4 * k + 1], t1, order); if (4 * j + 2 >= width) { continue; } pixels[4 * width * i + 4 * j + width * k + 2] = DdsGetDxtColor(c0, c1, alphaTable[4 * k + 2], t2, order); if (4 * j + 3 >= width) { continue; } pixels[4 * width * i + 4 * j + width * k + 3] = DdsGetDxtColor(c0, c1, alphaTable[4 * k + 3], t3, order); } } } return(pixels); }
private static int[] DdsDecodeDxt1(int width, int height, int offset, byte[] buffer, DdsOrder order) { var pixels = new int[4 * width * height]; var index = offset; var w = (width + 3) / 4; var h = (height + 3) / 4; for (var i = 0; i < h; i++) { for (var j = 0; j < w; j++) { var c0 = (buffer[index] & 0xFF) | (buffer[index + 1] & 0xFF) << 8; index += 2; var c1 = (buffer[index] & 0xFF) | (buffer[index + 1] & 0xFF) << 8; index += 2; for (var k = 0; k < 4; k++) { if (4 * i + k >= height) { break; } var t0 = (buffer[index] & 0x03); var t1 = (buffer[index] & 0x0C) >> 2; var t2 = (buffer[index] & 0x30) >> 4; var t3 = (buffer[index++] & 0xC0) >> 6; pixels[4 * width * i + 4 * j + width * k + 0] = DdsGetDxtColor(c0, c1, 0xFF, t0, order); if (4 * j + 1 >= width) { continue; } pixels[4 * width * i + 4 * j + width * k + 1] = DdsGetDxtColor(c0, c1, 0xFF, t1, order); if (4 * j + 2 >= width) { continue; } pixels[4 * width * i + 4 * j + width * k + 2] = DdsGetDxtColor(c0, c1, 0xFF, t2, order); if (4 * j + 3 >= width) { continue; } pixels[4 * width * i + 4 * j + width * k + 3] = DdsGetDxtColor(c0, c1, 0xFF, t3, order); } } } return(pixels); }
public static int[] DdsRead(byte[] buffer, DdsOrder order, int mipmapLevel) { // header var width = DdsGetWidth(buffer); var height = DdsGetHeight(buffer); var mipmap = DdsGetMipmap(buffer); // type var type = DdsGetType(buffer); if (type == 0) { return(null); } // offset var offset = 128; if (mipmapLevel > 0 && mipmapLevel < mipmap) { for (var i = 0; i < mipmapLevel; i++) { switch (type) { case Dxt1: offset += 8 * ((width + 3) / 4) * ((height + 3) / 4); break; case Dxt2: case Dxt3: case Dxt4: case Dxt5: offset += 16 * ((width + 3) / 4) * ((height + 3) / 4); break; case A1R5G5B5: case X1R5G5B5: case A4R4G4B4: case X4R4G4B4: case R5G6B5: case R8G8B8: case A8B8G8R8: case X8B8G8R8: case A8R8G8B8: case X8R8G8B8: offset += (type & 0xFF) * width * height; break; } width /= 2; height /= 2; } if (width <= 0) { width = 1; } if (height <= 0) { height = 1; } } // System.out.println("Width:" + width + ", Height:" + height + ", Mipmap: " + mipmap + ", Offset:" + offset + ", Type:" + type); { int[] pixels = null; switch (type) { case Dxt1: pixels = DdsDecodeDxt1(width, height, offset, buffer, order); break; case Dxt2: pixels = DdsDecodeDxt2(width, height, offset, buffer, order); break; case Dxt3: pixels = DdsDecodeDxt3(width, height, offset, buffer, order); break; case Dxt4: pixels = DdsDecodeDxt4(width, height, offset, buffer, order); break; case Dxt5: pixels = DdsDecodeDxt5(width, height, offset, buffer, order); break; case A1R5G5B5: pixels = DdsReadA1R5G5B5(width, height, offset, buffer, order); break; case X1R5G5B5: pixels = DdsReadX1R5G5B5(width, height, offset, buffer, order); break; case A4R4G4B4: pixels = DdsReadA4R4G4B4(width, height, offset, buffer, order); break; case X4R4G4B4: pixels = DdsReadX4R4G4B4(width, height, offset, buffer, order); break; case R5G6B5: pixels = DdsReadR5G6B5(width, height, offset, buffer, order); break; case R8G8B8: pixels = DdsReadR8G8B8(width, height, offset, buffer, order); break; case A8B8G8R8: pixels = DdsReadA8B8G8R8(width, height, offset, buffer, order); break; case X8B8G8R8: pixels = DdsReadX8B8G8R8(width, height, offset, buffer, order); break; case A8R8G8B8: pixels = DdsReadA8R8G8B8(width, height, offset, buffer, order); break; case X8R8G8B8: pixels = DdsReadX8R8G8B8(width, height, offset, buffer, order); break; } return(pixels); } }