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GA_trap
Declaration
typedef struct {
N_uint32 y;
N_uint32 count;
N_fix32 x1;
N_fix32 x2;
N_fix32 slope1;
N_fix32 slope2;
} GA_trap
Prototype In
snap/graphics.h
Description
Parameter block for the 2D DrawTrap function. This structure is used to pass in the information about a trapezoid to be rendered by the hardware to the driver DrawTrap function.
Members
y |
Starting Y coordinate |
count |
Number of scanlines to draw |
x1 |
Starting X1 coordinate in 16.16 fixed point |
x2 |
Starting X2 coordinate in 16.16 fixed point |
slope1 |
First edge slope in 16.16 fixed point format |
slope2 |
Second edge slope in 16.16 fixed point format |
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