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/*
* Copyright (C) 2016 Marcin Kościelnicki <koriakin@0x04.net>
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "nvhw/pgraph.h"
uint32_t pgraph_celsius_convert_light_v(uint32_t val) {
if ((val & 0x3ffff) < 0x3fe00)
val += 0x200;
return val & 0xfffffc00;
}
uint32_t pgraph_celsius_convert_light_sx(uint32_t val) {
if (!extr(val, 23, 8))
return 0;
if (extr(val, 23, 8) == 0xff) {
if (extr(val, 9, 14))
return 0x7ffffc00;
return 0x7f800000;
}
if ((val & 0x3ffff) < 0x3fe00)
val += 0x200;
return val & 0xfffffc00;
}
uint32_t pgraph_celsius_ub_to_float(uint8_t val) {
if (!val)
return 0;
if (val == 0xff)
return 0x3f800000;
uint32_t res = val * 0x010101;
uint32_t exp = 0x7e;
while (!extr(res, 23, 1))
res <<= 1, exp--;
insrt(res, 23, 8, exp);
return res;
}
uint32_t pgraph_celsius_short_to_float(struct pgraph_state *state, int16_t val) {
if (!val)
return 0;
if (state->chipset.chipset == 0x10 && val == -0x8000)
return 0x80000000;
bool sign = val < 0;
uint32_t res = (sign ? -val : val) << 8;
uint32_t exp = 0x7f + 15;
while (!extr(res, 23, 1))
res <<= 1, exp--;
insrt(res, 23, 8, exp);
insrt(res, 31, 1, sign);
return res;
}
uint32_t pgraph_celsius_nshort_to_float(int16_t val) {
bool sign = val < 0;
if (val == -0x8000)
return 0xbf800000;
if (val == 0x7fff)
return 0x3f800000;
int32_t rv = val << 1 | 1;
uint32_t res = (sign ? -rv : rv) * 0x10001;
uint32_t exp = 0x7f - 9;
while (extr(res, 24, 8))
res >>= 1, exp++;
while (!extr(res, 23, 1))
res <<= 1, exp--;
insrt(res, 23, 8, exp);
insrt(res, 31, 1, sign);
return res;
}
void pgraph_celsius_icmd(struct pgraph_state *state, int cmd, uint32_t val) {
uint32_t cls = extr(state->ctx_switch[0], 0, 8);
uint32_t cc = state->celsius_config_c;
if (cls == 0x55 || cls == 0x95) {
if (cmd == 0x11 || cmd == 0x13) {
bool color = cmd == 0x13;
if (extr(cc, 20 + color, 1) && !extr(cc, 18 + color, 1)) {
for (int i = 0; i < 4; i++)
if (extr(val, i * 8, 4) == 0xc)
val ^= 1 << (i * 8 + 5);
}
}
if (cmd == 7)
insrt(val, 30, 1, extr(cc, 16, 4) != 0xf);
if (cmd == 0x1b) {
if (extr(cc, 23, 1) || (extr(cc, 19, 1) && extr(cc, 21, 1)))
insrt(val, 5, 1, 1);
if (extr(cc, 22, 1) || (extr(cc, 18, 1) && extr(cc, 20, 1)))
insrt(val, 13, 1, 1);
}
}
state->celsius_pipe_junk[0] = cmd << 2;
state->celsius_pipe_junk[1] = val;
insrt(state->celsius_pipe_vtx_state, 28, 3, 0);
int ctr = state->celsius_pipe_ovtx_pos;
state->celsius_pipe_ovtx[ctr][2] = val;
insrt(state->celsius_pipe_ovtx[ctr][9], 0, 6, cmd);
insrt(state->celsius_pipe_ovtx[ctr][11], 0, 1, extr(val, 31, 1));
state->celsius_pipe_ovtx_pos++;
state->celsius_pipe_ovtx_pos &= 0xf;
}
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