Interpolated Rectangle
Porject implemented in MIPS assembly using MARS simulator.
Program displays interpolated rectangle on the bitmap.
Program takes as an input:
- width in pixels
- heigh in pixels
- color of vertices as: R, G, B as integer values.
Step size is calculated as a difference between each color component (R, G and B) of the vertices. This value is added to the previously drawn pixel to obtain the next color value.
Interpolation Y = (color component of vertice 3 - color component of vertice 1) / height
Interpolation X = (color component of vertice 2 - color component of vertice 1) / width
Interpolation X1 = color component of vertice 4 - color component of vertice 3) / width
Interpolation Difference = Interpolation X1 - Interpolation X
Interpolation Difference is needed to change step size when going to the next row.
In order to see program results there is a need to input the following settings and connect the bitmap to MIPS:
- Display width in Pixels: 1024
- Base address for display: 1x10040000 (heap)
Colors of pixels are interpolated using fixed-point arithmetics (16.16 format).
(PINK) 16763080 - (YELLOW) 16762880 - (BLUE) 2634473 – (GREY) 988190
(RED) 16711680 - (GREEN) 65280 - (BLUE) 255 - (WHITE) 16777215
