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ReC98/th01/end/pic.cpp

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[Decompilation] [th01] Ending picture loading and display Aww, how far we've come with inlining and helpful macros. Part of P0094, funded by Yanga.
2020-05-24 17:04:55 +00:00
#include "th01/end/pic.hpp"
#pragma option -O-
void pascal end_pics_load_palette_show(const char *fn)
{
graph_accesspage_func(1);
grp_put_palette_show(fn);
}
// Avoid symbol duplication...
#define egc_start_copy egc_start_copy_1
#include "th01/hardware/egcscopy.c"
[Maintenance] Declare distinct types for pixel and VRAM sizes Oh wait, we also need one of those for an upcoming structure! Part of P0111, funded by [Anonymous] and Blue Bolt.
2020-08-21 18:13:08 +00:00
static const pixel_t PIC_W = (RES_X / 2);
static const pixel_t PIC_H = (RES_Y / 2);
[Maintenance] Declare distinct types for screen, VRAM, and TRAM coordinates Whew, time to look at every `int` variable we ever declared! The best moment to do this would have been a year ago, but well, better late than never. No need to communicate that in comments anymore. These shouldn't be used for widths, heights, or sprite-space coordinates. Maybe we'll cover that another time, this commit is already large enough. Part of P0111, funded by [Anonymous] and Blue Bolt.
2020-08-20 19:59:45 +00:00
static const screen_x_t PIC_LEFT = ((RES_X / 2) - (PIC_W / 2));
static const screen_y_t PIC_TOP = ((RES_Y / 2) - (PIC_H / 2));
[Decompilation] [th01] Ending picture loading and display Aww, how far we've come with inlining and helpful macros. Part of P0094, funded by Yanga.
2020-05-24 17:04:55 +00:00
[Maintenance] Declare distinct types for pixel and VRAM sizes Oh wait, we also need one of those for an upcoming structure! Part of P0111, funded by [Anonymous] and Blue Bolt.
2020-08-21 18:13:08 +00:00
static const pixel_t PIC_VRAM_W = (PIC_W / BYTE_DOTS);
[Decompilation] [th01] Ending picture loading and display Aww, how far we've come with inlining and helpful macros. Part of P0094, funded by Yanga.
2020-05-24 17:04:55 +00:00
void end_pic_show(int quarter)
{
egc_start_copy();
[Maintenance] Declare distinct types for pixel and VRAM sizes Oh wait, we also need one of those for an upcoming structure! Part of P0111, funded by [Anonymous] and Blue Bolt.
2020-08-21 18:13:08 +00:00
pixel_t src_left = ((quarter % 2) * PIC_W);
pixel_t src_top = ((quarter / 2) * PIC_H);
[Maintenance] Declare a distinct type for VRAM offsets … and this one, while I'm at it. I've been using pretty much every possible type for VRAM offset variables, depending on my mood that day, since signedness apparently never matters for those. Except that it does. And so, just like with most of our high-level types, we also have to account for ZUN's little signedness inconsistencies here. Oh well, at least it's now only one of two types, and there's no need to choose between `int` or `unsigned int` or `short` or `unsigned short` or `int16_t` or `uint16_t` or `size_t` or… Part of P0111, funded by [Anonymous] and Blue Bolt.
2020-08-21 17:18:28 +00:00
uvram_offset_t vram_offset_src = vram_offset_shift(src_left, src_top);
uvram_offset_t vram_offset_dst = vram_offset_shift(PIC_LEFT, PIC_TOP);
[Maintenance] Declare distinct types for pixel and VRAM sizes Oh wait, we also need one of those for an upcoming structure! Part of P0111, funded by [Anonymous] and Blue Bolt.
2020-08-21 18:13:08 +00:00
vram_word_amount_t vram_x;
pixel_t y;
[Decompilation] [th01] Ending picture loading and display Aww, how far we've come with inlining and helpful macros. Part of P0094, funded by Yanga.
2020-05-24 17:04:55 +00:00
for(y = 0; y < PIC_H; y++) {
for(vram_x = 0; vram_x < (PIC_VRAM_W / sizeof(dots16_t)); vram_x++) {
dots16_t d;
graph_accesspage_func(1); d = VRAM_CHUNK(B, vram_offset_src, 16);
graph_accesspage_func(0); VRAM_CHUNK(B, vram_offset_dst, 16) = d;
vram_offset_src += sizeof(dots16_t);
vram_offset_dst += sizeof(dots16_t);
}
vram_offset_src += (ROW_SIZE - PIC_VRAM_W);
vram_offset_dst += (ROW_SIZE - PIC_VRAM_W);
}
egc_off();
}
#pragma option -O.