| 33,7 → 33,7 |
|---|
| rdev = (struct radeon_device *)rdisplay->ddev->dev_private; |
| |
| r = radeon_bo_create(rdev, CURSOR_WIDTH*CURSOR_HEIGHT*4, |
| PAGE_SIZE, false, RADEON_GEM_DOMAIN_VRAM, &cursor->robj); |
| PAGE_SIZE, false, RADEON_GEM_DOMAIN_VRAM, NULL, &cursor->robj); |
| |
| if (unlikely(r != 0)) |
| return r; |
| 294,3 → 294,34 |
|---|
| } |
| |
| |
| /* 23 bits of float fractional data */ |
| #define I2F_FRAC_BITS 23 |
| #define I2F_MASK ((1 << I2F_FRAC_BITS) - 1) |
| |
| /* |
| * Converts unsigned integer into 32-bit IEEE floating point representation. |
| * Will be exact from 0 to 2^24. Above that, we round towards zero |
| * as the fractional bits will not fit in a float. (It would be better to |
| * round towards even as the fpu does, but that is slower.) |
| */ |
| __pure uint32_t int2float(uint32_t x) |
| { |
| uint32_t msb, exponent, fraction; |
| |
| /* Zero is special */ |
| if (!x) return 0; |
| |
| /* Get location of the most significant bit */ |
| msb = __fls(x); |
| |
| /* |
| * Use a rotate instead of a shift because that works both leftwards |
| * and rightwards due to the mod(32) behaviour. This means we don't |
| * need to check to see if we are above 2^24 or not. |
| */ |
| fraction = ror32(x, (msb - I2F_FRAC_BITS) & 0x1f) & I2F_MASK; |
| exponent = (127 + msb) << I2F_FRAC_BITS; |
| |
| return fraction + exponent; |
| } |
| |