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ReC98/th01/hardware/grp2xscs.cpp

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[Separating translation units] [th01] Additional hardware effect functions These could have been nicely separated into per-device translations (one for GDC, one for EGC, one for regular VRAM accesses)… if their original order followed that classification. OK, so let's make it one full `graph_ex.cpp` translation unit… nope, FUUIN.EXE needs graph_2xscale_byterect_1_to_0_slow() with different compilation flags. 🤦 Whatever, fuck it, let's go for individual translation units, with individual headers, so that we at least get predictably organized source code out of this. Part of P0196, funded by Yanga.
2022-05-22 13:53:25 +00:00
#pragma option -zCGRAPH_EX_TEXT
#include <stdlib.h>
#include "platform.h"
#include "pc98.h"
#include "planar.h"
[Maintenance] Introduce proper Shift-JIS and JIS X 0208 types Much more semantic than that twobyte_t abomination. Part of P0212, funded by GhostRiderCog, Lmocinemod, and LeyDud.
2022-08-09 01:24:33 +00:00
#include "shiftjis.hpp"
[Separating translation units] [th01] Additional hardware effect functions These could have been nicely separated into per-device translations (one for GDC, one for EGC, one for regular VRAM accesses)… if their original order followed that classification. OK, so let's make it one full `graph_ex.cpp` translation unit… nope, FUUIN.EXE needs graph_2xscale_byterect_1_to_0_slow() with different compilation flags. 🤦 Whatever, fuck it, let's go for individual translation units, with individual headers, so that we at least get predictably organized source code out of this. Part of P0196, funded by Yanga.
2022-05-22 13:53:25 +00:00
#include "th01/hardware/graph.h"
[Maintenance] [th01] Move TH01-exclusive VRAM text functions to a new header Neatly dissolves two of the three game-specific preprocessor branches in `th01/hardware/grppsafx.h`. Moving at least one function into a corresponding .cpp file will also simplify the corresponding debloating commit on the respective branch. Part of P0229, funded by Ember2528.
2023-01-29 19:57:40 +00:00
#include "th01/hardware/grp_text.hpp"
[Separating translation units] [th01] Additional hardware effect functions These could have been nicely separated into per-device translations (one for GDC, one for EGC, one for regular VRAM accesses)… if their original order followed that classification. OK, so let's make it one full `graph_ex.cpp` translation unit… nope, FUUIN.EXE needs graph_2xscale_byterect_1_to_0_slow() with different compilation flags. 🤦 Whatever, fuck it, let's go for individual translation units, with individual headers, so that we at least get predictably organized source code out of this. Part of P0196, funded by Yanga.
2022-05-22 13:53:25 +00:00
#include "th01/hardware/grp2xscs.hpp"
[Maintenance] Change line endings in old C/C++ files to LF Yup, even a DOS compiler from 1994 considered CRLF line endings as stupid. Part of P0172, funded by [Anonymous] and Blue Bolt.
2021-12-25 15:18:17 +00:00
void scale_2x(dots32_t &dst32, sdots16_t src16)
{
dots32_t mask = 1;
dots32_t srcex = 0;
dots32_t dst_local;
int i;
srcex = src16;
dst_local = 0;
dst32 = 0;
for(i = 0; i < 16; i++) {
dst_local |= _lrotl(srcex & mask, ((i * 2) + 0) - i);
dst_local |= _lrotl(srcex & mask, ((i * 2) + 1) - i);
mask = _lrotl(mask, 1);
}
mask = 0x00FF00FF; dst32 |= _lrotl(dst_local & mask, 8);
mask = 0xFF00FF00; dst32 |= _lrotr(dst_local & mask, 8);
}
void graph_2xscale_byterect_1_to_0_slow(
screen_x_t left_0, vram_y_t top_0,
screen_x_t left_1, vram_y_t top_1, pixel_t w_1, pixel_t h_1
)
{
vram_offset_t row_p1 = vram_offset_divmul(left_1, top_1);
vram_offset_t row_p0 = vram_offset_divmul(left_0, top_0);
vram_word_amount_t col16;
pixel_t row;
Planar<dots16_t> px16;
dots16_t px16_nonzero;
for(row = 0; row < h_1; row++) {
[Maintenance] [th01] Avoid direct usage of VRAM plane pointers where possible Might not read as nicely for the 8-dot cases, but makes it easier to get rid of the pointers if necessary. Part of P0229, funded by Ember2528.
2023-01-29 18:08:03 +00:00
vram_offset_t p0 = row_p0;
vram_offset_t p1 = row_p1;
[Maintenance] Change line endings in old C/C++ files to LF Yup, even a DOS compiler from 1994 considered CRLF line endings as stupid. Part of P0172, funded by [Anonymous] and Blue Bolt.
2021-12-25 15:18:17 +00:00
for(col16 = 0; col16 < w_1 / 16; col16++) {
[Maintenance] [th01] Avoid direct usage of VRAM plane pointers where possible Might not read as nicely for the 8-dot cases, but makes it easier to get rid of the pointers if necessary. Part of P0229, funded by Ember2528.
2023-01-29 18:08:03 +00:00
vram_byte_amount_t scale_p;
[Maintenance] Change line endings in old C/C++ files to LF Yup, even a DOS compiler from 1994 considered CRLF line endings as stupid. Part of P0172, funded by [Anonymous] and Blue Bolt.
2021-12-25 15:18:17 +00:00
graph_accesspage_func(1);
VRAM_SNAP_PLANAR(px16, p1, 16);
[Maintenance] [th01] Avoid direct usage of VRAM plane pointers where possible Might not read as nicely for the 8-dot cases, but makes it easier to get rid of the pointers if necessary. Part of P0229, funded by Ember2528.
2023-01-29 18:08:03 +00:00
px16_nonzero = (px16.B | px16.R | px16.G | px16.E);
for(scale_p = 0; scale_p < (ROW_SIZE * 2); scale_p += ROW_SIZE) {
[Maintenance] Change line endings in old C/C++ files to LF Yup, even a DOS compiler from 1994 considered CRLF line endings as stupid. Part of P0172, funded by [Anonymous] and Blue Bolt.
2021-12-25 15:18:17 +00:00
dots32_t dst32;
dots32_t px32_nonzero;
[Maintenance] [th01] Avoid direct usage of VRAM plane pointers where possible Might not read as nicely for the 8-dot cases, but makes it easier to get rid of the pointers if necessary. Part of P0229, funded by Ember2528.
2023-01-29 18:08:03 +00:00
// Parentheses omitted for code generation reasons.
[Maintenance] Change line endings in old C/C++ files to LF Yup, even a DOS compiler from 1994 considered CRLF line endings as stupid. Part of P0172, funded by [Anonymous] and Blue Bolt.
2021-12-25 15:18:17 +00:00
graph_accesspage_func(0);
scale_2x(px32_nonzero, px16_nonzero);
grcg_setcolor_rmw(0);
[Maintenance] [th01] Avoid direct usage of VRAM plane pointers where possible Might not read as nicely for the 8-dot cases, but makes it easier to get rid of the pointers if necessary. Part of P0229, funded by Ember2528.
2023-01-29 18:08:03 +00:00
grcg_put(p0 + scale_p, px32_nonzero, 32);
[Maintenance] Change line endings in old C/C++ files to LF Yup, even a DOS compiler from 1994 considered CRLF line endings as stupid. Part of P0172, funded by [Anonymous] and Blue Bolt.
2021-12-25 15:18:17 +00:00
grcg_off();
scale_2x(dst32, px16.B);
[Maintenance] [th01] Avoid direct usage of VRAM plane pointers where possible Might not read as nicely for the 8-dot cases, but makes it easier to get rid of the pointers if necessary. Part of P0229, funded by Ember2528.
2023-01-29 18:08:03 +00:00
VRAM_CHUNK(B, p0 + scale_p, 32) |= dst32;
[Maintenance] Change line endings in old C/C++ files to LF Yup, even a DOS compiler from 1994 considered CRLF line endings as stupid. Part of P0172, funded by [Anonymous] and Blue Bolt.
2021-12-25 15:18:17 +00:00
scale_2x(dst32, px16.R);
[Maintenance] [th01] Avoid direct usage of VRAM plane pointers where possible Might not read as nicely for the 8-dot cases, but makes it easier to get rid of the pointers if necessary. Part of P0229, funded by Ember2528.
2023-01-29 18:08:03 +00:00
VRAM_CHUNK(R, p0 + scale_p, 32) |= dst32;
[Maintenance] Change line endings in old C/C++ files to LF Yup, even a DOS compiler from 1994 considered CRLF line endings as stupid. Part of P0172, funded by [Anonymous] and Blue Bolt.
2021-12-25 15:18:17 +00:00
scale_2x(dst32, px16.G);
[Maintenance] [th01] Avoid direct usage of VRAM plane pointers where possible Might not read as nicely for the 8-dot cases, but makes it easier to get rid of the pointers if necessary. Part of P0229, funded by Ember2528.
2023-01-29 18:08:03 +00:00
VRAM_CHUNK(G, p0 + scale_p, 32) |= dst32;
[Maintenance] Change line endings in old C/C++ files to LF Yup, even a DOS compiler from 1994 considered CRLF line endings as stupid. Part of P0172, funded by [Anonymous] and Blue Bolt.
2021-12-25 15:18:17 +00:00
scale_2x(dst32, px16.E);
[Maintenance] [th01] Avoid direct usage of VRAM plane pointers where possible Might not read as nicely for the 8-dot cases, but makes it easier to get rid of the pointers if necessary. Part of P0229, funded by Ember2528.
2023-01-29 18:08:03 +00:00
VRAM_CHUNK(E, p0 + scale_p, 32) |= dst32;
[Maintenance] Change line endings in old C/C++ files to LF Yup, even a DOS compiler from 1994 considered CRLF line endings as stupid. Part of P0172, funded by [Anonymous] and Blue Bolt.
2021-12-25 15:18:17 +00:00
}
[Maintenance] [th01] Avoid direct usage of VRAM plane pointers where possible Might not read as nicely for the 8-dot cases, but makes it easier to get rid of the pointers if necessary. Part of P0229, funded by Ember2528.
2023-01-29 18:08:03 +00:00
p1 += static_cast<vram_byte_amount_t>(sizeof(dots16_t));
p0 += static_cast<vram_byte_amount_t>(sizeof(dots32_t));
[Maintenance] Change line endings in old C/C++ files to LF Yup, even a DOS compiler from 1994 considered CRLF line endings as stupid. Part of P0172, funded by [Anonymous] and Blue Bolt.
2021-12-25 15:18:17 +00:00
}
[Maintenance] [th01] Avoid direct usage of VRAM plane pointers where possible Might not read as nicely for the 8-dot cases, but makes it easier to get rid of the pointers if necessary. Part of P0229, funded by Ember2528.
2023-01-29 18:08:03 +00:00
row_p0 += (ROW_SIZE * 2);
[Maintenance] Change line endings in old C/C++ files to LF Yup, even a DOS compiler from 1994 considered CRLF line endings as stupid. Part of P0172, funded by [Anonymous] and Blue Bolt.
2021-12-25 15:18:17 +00:00
row_p1 += ROW_SIZE;
}
}