mirror of https://github.com/nmlgc/ReC98.git
[Decompilation] [th01] Restorable line drawing
Yes, when clipping the start and end points to the screen area, ZUN uses an integer division to calculate the line slopes, rather than a floating-point one. Doesn't seem like it actually causes any incorrect lines to be drawn, though; that case is only hit in the Mima boss fight, which draws a few lines with a bottom coordinate of 400 rather than 399. It *might* also restore the wrong pixels at parts of the YuugenMagan fight, causing weird flickering, but seriously, that's an issue everywhere you look in this game. Part of P0069, funded by [Anonymous] and Yanga.
This commit is contained in:
nmlgc
parent
b5cef6eb69
commit
b0c832bdee
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@ -42,17 +42,17 @@ bin\th01\zunsoft.com: th01\zunsoft.c
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$(CC) $(CFLAGS) -mt -lt -nbin\th01\ $** masters.lib
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bin\th01\op.exe: bin\th01\op.obj th01\op_02.c th01\op_03.c th01\op_04.c th01\op_06.cpp th01\op_08.c th01\op_10.c th01\op_11.c th01\op_12.cpp
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$(CC) $(CFLAGS) -ml -3 -nbin\th01\ -eOP.EXE @&&|
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$(CC) $(CFLAGS) -ml -3 -DGAME=1 -nbin\th01\ -eOP.EXE @&&|
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$**
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bin\th01\reiiden.exe: bin\th01\reiiden.obj th01\main_02.c th01\main_03.c th01\main_04.c th01\main_06.cpp th01\main_12.c th01\main_13.c th01\main_14.c th01\main_16.c
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$(CC) $(CFLAGS) -ml -3 -nbin\th01\ -eREIIDEN.EXE @&&|
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$(CC) $(CFLAGS) -ml -3 -DGAME=1 -nbin\th01\ -eREIIDEN.EXE @&&|
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$**
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bin\th01\fuuin.exe: bin\th01\fuuin.obj th01\fuuin_05.c th01\fuuin_06.c th01\fuuin_08.cpp th01\fuuin_09.c th01\fuuin_11.c th01\fuuin_12.c th01\fuuin_13.c
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$(CC) $(CFLAGS) -ml -3 -nbin\th01\ -eFUUIN.EXE @&&|
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$(CC) $(CFLAGS) -ml -3 -DGAME=1 -nbin\th01\ -eFUUIN.EXE @&&|
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$**
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4
ReC98.h
4
ReC98.h
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@ -95,6 +95,10 @@ typedef struct {
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planar16_t B, R, G, E;
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} vram_planar_16_pixels_t;
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typedef struct {
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planar32_t B, R, G, E;
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} vram_planar_32_pixels_t;
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// Since array subscripts create slightly different assembly in places, we
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// offer both variants.
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extern planar8_t *VRAM_PLANE[PL_COUNT];
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@ -1,3 +1,5 @@
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#include "defconv.h"
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// Blits the rectangle from (⌊x/16⌋*16, y) to (⌈((x + w)/16)*16⌉, (y + h))
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// from VRAM page 1 to the same position on VRAM page 0.
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void pascal egc_copy_rect_1_to_0(int x, int y, int w, int h);
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void DEFCONV egc_copy_rect_1_to_0(int x, int y, int w, int h);
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@ -5,6 +5,7 @@ extern "C" {
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#include <mbctype.h>
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#include <mbstring.h>
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#include "ReC98.h"
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#include "th01/hardware/egc.h"
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#include "th01/hardware/vsync.h"
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#include "th01/hardware/graph.h"
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#include "th01/hardware/palette.hpp"
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@ -88,6 +89,12 @@ extern "C" {
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push cs; \
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call near ptr grcg_off_func; \
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}
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#define GRAPH_ACCESSPAGE_FUNC(page, stack_clear_size) __asm { \
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push page; \
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push cs; \
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call near ptr graph_accesspage_func; \
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} \
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_SP += stack_clear_size;
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/// -----------------------------------------------
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/// Pages
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@ -105,6 +112,226 @@ extern Point graph_r_last_line_end;
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extern bool graph_r_restore_from_1;
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// Not used for purely horizontal lines.
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extern planar16_t graph_r_pattern;
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void graph_r_hline(int left, int right, int y, int col)
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{
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int full_bytes_to_put;
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int order_tmp;
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planar8_t left_pixels;
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planar8_t right_pixels;
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planar8_t *vram_row;
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fix_order(left, right);
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clip_x(left, right);
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graph_r_last_line_end.x = right;
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graph_r_last_line_end.y = y;
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vram_row = (planar8_t *)(MK_FP(GRAM_400, (y * ROW_SIZE) + (left / 8)));
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full_bytes_to_put = (right / 8) - (left / 8);
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left_pixels = 0xFF >> (left & 7);
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right_pixels = 0xFF << (7 - (right & 7));
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if(!graph_r_restore_from_1) {
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GRCG_SETCOLOR_RMW(col);
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}
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if(graph_r_restore_from_1) {
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egc_copy_rect_1_to_0(left, y, RES_X - left, 1);
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} else {
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if(full_bytes_to_put == 0) {
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vram_row[0] = (left_pixels & right_pixels);
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} else {
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vram_row[0] = left_pixels;
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for(register int x = 1; x < full_bytes_to_put; x++) {
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vram_row[x] = 0xFF;
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}
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vram_row[full_bytes_to_put] = right_pixels;
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}
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}
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if(!graph_r_restore_from_1) {
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GRCG_OFF();
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}
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}
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void graph_r_vline(int x, int top, int bottom, int col)
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{
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int y;
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int order_tmp;
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planar16_t pattern;
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int vram_row_offset;
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fix_order(top, bottom);
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clip_y(top, bottom);
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graph_r_last_line_end.x = x;
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graph_r_last_line_end.y = bottom;
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if(graph_r_restore_from_1) {
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egc_copy_rect_1_to_0(x, top, sizeof(pattern) * 8, bottom - top);
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return;
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}
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vram_row_offset = VRAM_OFFSET(x, top);
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pattern = graph_r_pattern >> (x & 7);
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pattern |= graph_r_pattern << (16 - (x & 7));
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GRCG_SETCOLOR_RMW(col);
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for(y = top; y <= bottom; y++) {
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VRAM_PUT(B, vram_row_offset, pattern, 16);
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vram_row_offset += ROW_SIZE;
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}
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GRCG_OFF();
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}
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void graph_r_line_from_1(int left, int top, int right, int bottom)
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{
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graph_r_restore_from_1 = true;
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graph_r_line(left, top, right, bottom, 7);
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graph_r_restore_from_1 = false;
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}
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void graph_r_line_patterned(
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int left, int top, int right, int bottom, int col, planar16_t pattern
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)
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{
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graph_r_pattern = pattern;
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graph_r_line(left, top, right, bottom, col);
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graph_r_pattern = 0x80;
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}
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void graph_r_line(int left, int top, int right, int bottom, int col)
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{
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register int vram_offset;
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int i;
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int x_cur, y_cur;
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int w, h;
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int error;
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int y_direction;
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int order_tmp;
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int x_vram, y_vram;
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planar16_t pixels;
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vram_planar_32_pixels_t page1;
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#define slope_x ((bottom - top) / (right - left))
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#define slope_y ((right - left) / (bottom - top))
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#define lerp(m, x) static_cast<int>(m * static_cast<float>(x))
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#define clip_lerp_min(low, high, lerp_point, slope, minimum) \
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if(low < minimum) { \
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if(high < minimum) { \
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return; \
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} \
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lerp_point += lerp(slope, (minimum - low)); \
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low = minimum; \
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}
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#define clip_lerp_max(low, high, lerp_point, slope, maximum) \
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if(high > maximum) { \
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if(low > maximum) { \
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return; \
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} \
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lerp_point -= lerp(slope, (high - maximum)); \
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high = maximum; \
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}
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#define restore_at(bit_count) \
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GRAPH_ACCESSPAGE_FUNC(1, 0); VRAM_SNAP_4(page1, vram_offset, 32); \
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GRAPH_ACCESSPAGE_FUNC(0, 4); VRAM_PUT_4(vram_offset, page1, 32);
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#define plot_loop(\
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step_var, step_len, step_increment, \
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plotted_var, plotted_len, plotted_increment \
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) \
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error = (step_len >> 1); \
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for(i = 0; i <= step_len; i++) { \
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/* Advanced past the VRAM cursor? */ \
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if((x_cur >> 3) != x_vram || (y_vram != y_cur)) { \
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vram_offset = (y_vram * ROW_SIZE) + x_vram; \
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if(!graph_r_restore_from_1) { \
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VRAM_PUT(B, vram_offset, pixels, 16); \
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pixels = 0; \
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} else { \
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vram_offset--; \
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restore_at(vram_offset); \
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} \
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y_vram = y_cur; \
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x_vram = (x_cur >> 3); \
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} \
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pixels |= (graph_r_pattern >> (x_cur & 7)); \
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pixels |= (graph_r_pattern << (16 - (x_cur & 7))); \
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error -= plotted_len; \
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step_var += step_increment; \
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if(error < 0) { \
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error += step_len; \
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plotted_var += plotted_increment; \
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} \
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} \
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if(graph_r_restore_from_1) { \
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goto restore_last; \
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} \
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goto end;
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if(!graph_r_restore_from_1 && (left == right)) {
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graph_r_vline(left, top, bottom, col);
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return;
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}
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if(!graph_r_restore_from_1 && (top == bottom)) {
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graph_r_hline(left, right, top, col);
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return;
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}
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if(left > right) {
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order_tmp = left;
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left = right;
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right = order_tmp;
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order_tmp = top;
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top = bottom;
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bottom = order_tmp;
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}
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clip_lerp_min(left, right, top, slope_x, 0);
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clip_lerp_max(left, right, bottom, slope_x, (RES_X - 1));
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clip_lerp_min(top, bottom, left, slope_y, 0);
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clip_lerp_max(top, bottom, right, slope_y, (RES_Y - 1));
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if(bottom < 0) {
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right += lerp(slope_y, 0 - bottom);
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bottom = 0;
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}
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if(top > (RES_Y - 1)) {
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left -= lerp(slope_y, top - (RES_Y - 1));
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top = (RES_Y - 1);
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}
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graph_r_last_line_end.x = right;
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graph_r_last_line_end.y = bottom;
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x_cur = left;
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y_cur = top;
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y_direction = (top < bottom) ? 1 : -1;
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w = right - left;
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h = (bottom - top) * y_direction;
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pixels = 0;
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x_vram = (x_cur >> 3);
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y_vram = y_cur;
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if(!graph_r_restore_from_1) {
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GRCG_SETCOLOR_RMW(col);
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}
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if(w > h) {
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plot_loop(x_cur, w, 1, y_cur, h, y_direction);
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} else {
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plot_loop(y_cur, h, y_direction, x_cur, w, 1);
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}
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restore_last:
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vram_offset = VRAM_OFFSET(x_cur, y_cur) - 1;
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restore_at(vram_offset);
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end:
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if(!graph_r_restore_from_1) {
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GRCG_OFF();
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}
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#undef plot_loop
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#undef restore_at
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#undef clip_lerp_min
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#undef clip_lerp_max
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#undef slope
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}
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/// -----------------------
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void z_grcg_boxfill(int left, int top, int right, int bottom, int col)
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@ -145,41 +372,10 @@ void z_grcg_boxfill(int left, int top, int right, int bottom, int col)
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void graph_r_box(int left, int top, int right, int bottom, int col)
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{
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/* TODO: Replace with the decompiled calls
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* graph_r_hline(left, right, top, col);
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* graph_r_vline(left, top, bottom, col);
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* graph_r_vline(right, top, bottom, col);
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* graph_r_hline(left, right, bottom, col);
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* once those functions are part of this translation unit */
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__asm {
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mov di, left
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mov si, col
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push si
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push top
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push right
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push di
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push cs
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call near ptr graph_r_hline
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push si
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push bottom
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push top
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push di
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push cs
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call near ptr graph_r_vline
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push si
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push bottom
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push top
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push right
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push cs
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call near ptr graph_r_vline
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push si
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push bottom
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push right
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push di
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push cs
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call near ptr graph_r_hline
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add sp, 0x20
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}
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graph_r_hline(left, right, top, col);
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graph_r_vline(left, top, bottom, col);
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graph_r_vline(right, top, bottom, col);
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graph_r_hline(left, right, bottom, col);
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}
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int text_extent_fx(int fx, const unsigned char *str)
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@ -230,33 +426,13 @@ void graph_putsa_fx(int left, int top, int fx, const unsigned char *str)
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w = text_extent_fx(fx, str);
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if(underline) {
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z_grcg_boxfill(left, top, (left + w - 1), (top + GLYPH_H + 1), 0);
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/* TODO: Replace with the decompiled call
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* graph_r_hline(left, (left + w - 1), (top + GLYPH_H + 1), 7);
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* once that function is part of this translation unit */
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goto graph_hline_call;
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graph_r_hline(left, (left + w - 1), (top + GLYPH_H + 1), 7);
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} else {
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z_grcg_boxfill(left, top, (left + w - 1), (top + GLYPH_H - 1), 0);
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}
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} else if(underline) {
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w = text_extent_fx(fx, str);
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/* TODO: Replace with the decompiled call
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* graph_r_hline(left, (left + w - 1), (top + GLYPH_H + 1), 7);
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* once that function is part of this translation unit */
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graph_hline_call:
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__asm {
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push 7
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mov ax, top
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add ax, GLYPH_H + 1
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push ax
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db 0x8B, 0xC6
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add ax, w
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dec ax
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push ax
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db 0x56
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push cs
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call near ptr graph_r_hline
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add sp, 8
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}
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graph_r_hline(left, (left + w - 1), (top + GLYPH_H + 1), 7);
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}
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GRCG_SETCOLOR_RMW(fx);
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|
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@ -1,816 +0,0 @@
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public _graph_r_hline
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_graph_r_hline proc far
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@@vram_row = dword ptr -0Ah
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@@right_pixels = byte ptr -6
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@@left_pixels = byte ptr -5
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@@order_tmp = word ptr -4
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@@full_bytes_to_put = word ptr -2
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@@left = word ptr 6
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@@right = word ptr 8
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@@y = word ptr 0Ah
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@@col = word ptr 0Ch
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enter 0Ah, 0
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push si
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push di
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mov di, [bp+@@y]
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mov ax, [bp+@@left]
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cmp ax, [bp+@@right]
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jle short @@clip_left?
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mov [bp+@@order_tmp], ax
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mov ax, [bp+@@right]
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mov [bp+@@left], ax
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mov ax, [bp+@@order_tmp]
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mov [bp+@@right], ax
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@@clip_left?:
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cmp [bp+@@left], 0
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jge short @@clip_right?
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cmp [bp+@@right], 0
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jl @@ret
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mov [bp+@@left], 0
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@@clip_right?:
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cmp [bp+@@right], (RES_X - 1)
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jle short @@setup_vram_pointer_and_edges
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cmp [bp+@@left], (RES_X - 1)
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jg @@ret
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mov [bp+@@right], (RES_X - 1)
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@@setup_vram_pointer_and_edges:
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mov ax, [bp+@@right]
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mov _graph_r_last_line_end.x, ax
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mov _graph_r_last_line_end.y, di
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mov ax, di
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imul ax, ROW_SIZE
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push ax
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mov ax, [bp+@@left]
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mov bx, 8
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cwd
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idiv bx
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pop dx
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add dx, ax
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mov word ptr [bp+@@vram_row+2], 0A800h
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mov word ptr [bp+@@vram_row], dx
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mov ax, [bp+@@right]
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cwd
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idiv bx
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push ax
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mov ax, [bp+@@left]
|
||||
cwd
|
||||
idiv bx
|
||||
pop dx
|
||||
sub dx, ax
|
||||
mov [bp+@@full_bytes_to_put], dx
|
||||
mov cl, byte ptr [bp+@@left]
|
||||
and cl, 7
|
||||
mov ax, 0FFh
|
||||
sar ax, cl
|
||||
mov [bp+@@left_pixels], al
|
||||
mov al, byte ptr [bp+@@right]
|
||||
and al, 7
|
||||
mov cl, 7
|
||||
sub cl, al
|
||||
mov al, 0FFh
|
||||
shl al, cl
|
||||
mov [bp+@@right_pixels], al
|
||||
cmp _graph_r_restore_from_1, 0
|
||||
jnz short @@restore?
|
||||
push [bp+@@col]
|
||||
call _grcg_setcolor_rmw
|
||||
pop cx
|
||||
|
||||
@@restore?:
|
||||
cmp _graph_r_restore_from_1, 0
|
||||
jz short @@put
|
||||
push 1
|
||||
mov ax, RES_X
|
||||
sub ax, [bp+@@left]
|
||||
push ax
|
||||
push di
|
||||
push [bp+@@left]
|
||||
call _egc_copy_rect_1_to_0
|
||||
add sp, 8
|
||||
jmp short @@grcg_off?
|
||||
; ---------------------------------------------------------------------------
|
||||
|
||||
@@put:
|
||||
cmp [bp+@@full_bytes_to_put], 0
|
||||
jnz short @@at_least_one_full_byte
|
||||
mov al, [bp+@@left_pixels]
|
||||
and al, [bp+@@right_pixels]
|
||||
les bx, [bp+@@vram_row]
|
||||
assume es:nothing
|
||||
jmp short @@put_edge
|
||||
; ---------------------------------------------------------------------------
|
||||
|
||||
@@at_least_one_full_byte:
|
||||
les bx, [bp+@@vram_row]
|
||||
mov al, [bp+@@left_pixels]
|
||||
mov es:[bx], al
|
||||
mov si, 1
|
||||
jmp short @@xloop_more?
|
||||
; ---------------------------------------------------------------------------
|
||||
|
||||
@@xloop:
|
||||
les bx, [bp+@@vram_row]
|
||||
add bx, si
|
||||
mov byte ptr es:[bx], 0FFh
|
||||
inc si
|
||||
|
||||
@@xloop_more?:
|
||||
cmp si, [bp+@@full_bytes_to_put]
|
||||
jl short @@xloop
|
||||
les bx, [bp+@@vram_row]
|
||||
add bx, [bp+@@full_bytes_to_put]
|
||||
mov al, [bp+@@right_pixels]
|
||||
|
||||
@@put_edge:
|
||||
mov es:[bx], al
|
||||
|
||||
@@grcg_off?:
|
||||
cmp _graph_r_restore_from_1, 0
|
||||
jnz short @@ret
|
||||
call _grcg_off_func
|
||||
|
||||
@@ret:
|
||||
pop di
|
||||
pop si
|
||||
leave
|
||||
retf
|
||||
_graph_r_hline endp
|
||||
|
||||
|
||||
public _graph_r_vline
|
||||
_graph_r_vline proc far
|
||||
|
||||
@@vram_row_offset = word ptr -8
|
||||
@@pattern = word ptr -6
|
||||
@@order_tmp = word ptr -4
|
||||
@@y = word ptr -2
|
||||
@@x = word ptr 6
|
||||
@@top = word ptr 8
|
||||
@@bottom = word ptr 0Ah
|
||||
@@col = word ptr 0Ch
|
||||
|
||||
enter 8, 0
|
||||
push si
|
||||
push di
|
||||
mov si, [bp+@@top]
|
||||
mov di, [bp+@@bottom]
|
||||
cmp si, di
|
||||
jle short @@clip_top?
|
||||
mov [bp+@@order_tmp], si
|
||||
mov si, di
|
||||
mov di, [bp+@@order_tmp]
|
||||
|
||||
@@clip_top?:
|
||||
or si, si
|
||||
jge short @@clip_bottom?
|
||||
or di, di
|
||||
jl @@ret
|
||||
xor si, si
|
||||
|
||||
@@clip_bottom?:
|
||||
cmp di, (RES_Y - 1)
|
||||
jle short @@restore?
|
||||
cmp si, (RES_Y - 1)
|
||||
jg @@ret
|
||||
mov di, (RES_Y - 1)
|
||||
|
||||
@@restore?:
|
||||
mov ax, [bp+@@x]
|
||||
mov _graph_r_last_line_end.x, ax
|
||||
mov _graph_r_last_line_end.y, di
|
||||
cmp _graph_r_restore_from_1, 0
|
||||
jz short @@setup_vram_offset_and_pattern
|
||||
mov ax, di
|
||||
sub ax, si
|
||||
push ax
|
||||
push 16
|
||||
push si
|
||||
push [bp+@@x]
|
||||
call _egc_copy_rect_1_to_0
|
||||
add sp, 8
|
||||
jmp short @@ret
|
||||
; ---------------------------------------------------------------------------
|
||||
|
||||
@@setup_vram_offset_and_pattern:
|
||||
mov ax, [bp+@@x]
|
||||
sar ax, 3
|
||||
mov dx, si
|
||||
shl dx, 6
|
||||
add ax, dx
|
||||
mov dx, si
|
||||
shl dx, 4
|
||||
add ax, dx
|
||||
mov [bp+@@vram_row_offset], ax
|
||||
mov cl, byte ptr [bp+@@x]
|
||||
and cl, 7
|
||||
mov ax, _graph_r_pattern
|
||||
shr ax, cl
|
||||
mov [bp+@@pattern], ax
|
||||
mov al, byte ptr [bp+@@x]
|
||||
and al, 7
|
||||
mov cl, 16
|
||||
sub cl, al
|
||||
mov ax, _graph_r_pattern
|
||||
shl ax, cl
|
||||
or [bp+@@pattern], ax
|
||||
push [bp+@@col]
|
||||
call _grcg_setcolor_rmw
|
||||
pop cx
|
||||
mov [bp+@@y], si
|
||||
jmp short @@yloop_more?
|
||||
; ---------------------------------------------------------------------------
|
||||
|
||||
@@yloop:
|
||||
les bx, _VRAM_PLANE_B
|
||||
add bx, [bp+@@vram_row_offset]
|
||||
mov ax, [bp+@@pattern]
|
||||
mov es:[bx], ax
|
||||
add [bp+@@vram_row_offset], ROW_SIZE
|
||||
inc [bp+@@y]
|
||||
|
||||
@@yloop_more?:
|
||||
cmp [bp+@@y], di
|
||||
jle short @@yloop
|
||||
call _grcg_off_func
|
||||
|
||||
@@ret:
|
||||
pop di
|
||||
pop si
|
||||
leave
|
||||
retf
|
||||
_graph_r_vline endp
|
||||
|
||||
|
||||
public _graph_r_line_from_1
|
||||
_graph_r_line_from_1 proc far
|
||||
|
||||
@@left = word ptr 6
|
||||
@@top = word ptr 8
|
||||
@@right = word ptr 0Ah
|
||||
@@bottom = word ptr 0Ch
|
||||
|
||||
push bp
|
||||
mov bp, sp
|
||||
mov _graph_r_restore_from_1, 1
|
||||
push 7
|
||||
push [bp+@@bottom]
|
||||
push [bp+@@right]
|
||||
push [bp+@@top]
|
||||
push [bp+@@left]
|
||||
nopcall _graph_r_line
|
||||
add sp, 0Ah
|
||||
mov _graph_r_restore_from_1, 0
|
||||
pop bp
|
||||
retf
|
||||
_graph_r_line_from_1 endp
|
||||
|
||||
|
||||
public _graph_r_line_patterned
|
||||
_graph_r_line_patterned proc far
|
||||
|
||||
@@left = word ptr 6
|
||||
@@top = word ptr 8
|
||||
@@right = word ptr 0Ah
|
||||
@@bottom = word ptr 0Ch
|
||||
@@col = word ptr 0Eh
|
||||
@@pattern = word ptr 10h
|
||||
|
||||
push bp
|
||||
mov bp, sp
|
||||
mov ax, [bp+@@pattern]
|
||||
mov _graph_r_pattern, ax
|
||||
push [bp+@@col]
|
||||
push [bp+@@bottom]
|
||||
push [bp+@@right]
|
||||
push [bp+@@top]
|
||||
push [bp+@@left]
|
||||
nopcall _graph_r_line
|
||||
add sp, 0Ah
|
||||
mov _graph_r_pattern, 80h
|
||||
pop bp
|
||||
retf
|
||||
_graph_r_line_patterned endp
|
||||
|
||||
|
||||
public _graph_r_line
|
||||
_graph_r_line proc far
|
||||
|
||||
@@page1_B = dword ptr -28h
|
||||
@@page1_R = dword ptr -24h
|
||||
@@page1_G = dword ptr -20h
|
||||
@@page1_E = dword ptr -1Ch
|
||||
@@x87_tmp = word ptr -18h
|
||||
@@pixels = word ptr -16h
|
||||
@@y_vram = word ptr -14h
|
||||
@@x_vram = word ptr -12h
|
||||
@@tmp = word ptr -10h
|
||||
@@y_direction = word ptr -0Eh
|
||||
@@error = word ptr -0Ch
|
||||
@@h = word ptr -0Ah
|
||||
@@w = word ptr -8
|
||||
@@y_cur = word ptr -6
|
||||
@@x_cur = word ptr -4
|
||||
@@i = word ptr -2
|
||||
@@left = word ptr 6
|
||||
@@top = word ptr 8
|
||||
@@right = word ptr 0Ah
|
||||
@@bottom = word ptr 0Ch
|
||||
@@col = word ptr 0Eh
|
||||
|
||||
enter 28h, 0
|
||||
push si
|
||||
push di
|
||||
mov di, [bp+@@top]
|
||||
cmp _graph_r_restore_from_1, 0
|
||||
jnz short @@horizontal_only?
|
||||
mov ax, [bp+@@left]
|
||||
cmp ax, [bp+@@right]
|
||||
jnz short @@horizontal_only?
|
||||
call _graph_r_vline stdcall, ax, di, [bp+@@bottom], [bp+@@col]
|
||||
jmp short @@add_sp_and_ret
|
||||
; ---------------------------------------------------------------------------
|
||||
|
||||
@@horizontal_only?:
|
||||
cmp _graph_r_restore_from_1, 0
|
||||
jnz short @@not_aligned
|
||||
cmp di, [bp+@@bottom]
|
||||
jnz short @@not_aligned
|
||||
call _graph_r_hline stdcall, [bp+@@left], [bp+@@right], di, [bp+@@col]
|
||||
|
||||
@@add_sp_and_ret:
|
||||
add sp, 8
|
||||
jmp @@ret
|
||||
; ---------------------------------------------------------------------------
|
||||
|
||||
@@not_aligned:
|
||||
mov ax, [bp+@@left]
|
||||
cmp ax, [bp+@@right]
|
||||
jle short @@clip_left?
|
||||
mov [bp+@@tmp], ax
|
||||
mov ax, [bp+@@right]
|
||||
mov [bp+@@left], ax
|
||||
mov ax, [bp+@@tmp]
|
||||
mov [bp+@@right], ax
|
||||
mov [bp+@@tmp], di
|
||||
mov di, [bp+@@bottom]
|
||||
mov ax, [bp+@@tmp]
|
||||
mov [bp+@@bottom], ax
|
||||
|
||||
@@clip_left?:
|
||||
cmp [bp+@@left], 0
|
||||
jge short @@clip_right?
|
||||
cmp [bp+@@right], 0
|
||||
jl @@ret
|
||||
mov ax, [bp+@@bottom]
|
||||
sub ax, di
|
||||
mov bx, [bp+@@right]
|
||||
sub bx, [bp+@@left]
|
||||
cwd
|
||||
idiv bx
|
||||
mov [bp+@@x87_tmp], ax
|
||||
fild [bp+@@x87_tmp]
|
||||
xor ax, ax
|
||||
sub ax, [bp+@@left]
|
||||
mov [bp+@@x87_tmp], ax
|
||||
fild [bp+@@x87_tmp]
|
||||
fmulp st(1), st
|
||||
call ftol@
|
||||
add di, ax
|
||||
mov [bp+@@left], 0
|
||||
|
||||
@@clip_right?:
|
||||
cmp [bp+@@right], (RES_X - 1)
|
||||
jle short @@clip_top?
|
||||
cmp [bp+@@left], (RES_X - 1)
|
||||
jg @@ret
|
||||
mov ax, [bp+@@bottom]
|
||||
sub ax, di
|
||||
mov bx, [bp+@@right]
|
||||
sub bx, [bp+@@left]
|
||||
cwd
|
||||
idiv bx
|
||||
mov [bp+@@x87_tmp], ax
|
||||
fild [bp+@@x87_tmp]
|
||||
mov ax, [bp+@@right]
|
||||
add ax, -(RES_X - 1)
|
||||
mov [bp+@@x87_tmp], ax
|
||||
fild [bp+@@x87_tmp]
|
||||
fmulp st(1), st
|
||||
call ftol@
|
||||
sub [bp+@@bottom], ax
|
||||
mov [bp+@@right], (RES_X - 1)
|
||||
|
||||
@@clip_top?:
|
||||
or di, di
|
||||
jge short @@clip_bottom?
|
||||
cmp [bp+@@bottom], 0
|
||||
jl @@ret
|
||||
mov ax, [bp+@@right]
|
||||
sub ax, [bp+@@left]
|
||||
mov bx, [bp+@@bottom]
|
||||
sub bx, di
|
||||
cwd
|
||||
idiv bx
|
||||
mov [bp+@@x87_tmp], ax
|
||||
fild [bp+@@x87_tmp]
|
||||
xor ax, ax
|
||||
sub ax, di
|
||||
mov [bp+@@x87_tmp], ax
|
||||
fild [bp+@@x87_tmp]
|
||||
fmulp st(1), st
|
||||
call ftol@
|
||||
add [bp+@@left], ax
|
||||
xor di, di
|
||||
|
||||
@@clip_bottom?:
|
||||
cmp [bp+@@bottom], (RES_Y - 1)
|
||||
jle short @@clip_bottom_at_top?
|
||||
cmp di, (RES_Y - 1)
|
||||
jg @@ret
|
||||
mov ax, [bp+@@right]
|
||||
sub ax, [bp+@@left]
|
||||
mov bx, [bp+@@bottom]
|
||||
sub bx, di
|
||||
cwd
|
||||
idiv bx
|
||||
mov [bp+@@x87_tmp], ax
|
||||
fild [bp+@@x87_tmp]
|
||||
mov ax, [bp+@@bottom]
|
||||
add ax, -(RES_Y - 1)
|
||||
mov [bp+@@x87_tmp], ax
|
||||
fild [bp+@@x87_tmp]
|
||||
fmulp st(1), st
|
||||
call ftol@
|
||||
sub [bp+@@right], ax
|
||||
mov [bp+@@bottom], (RES_Y - 1)
|
||||
|
||||
@@clip_bottom_at_top?:
|
||||
cmp [bp+@@bottom], 0
|
||||
jge short @@clip_top_at_bottom?
|
||||
mov ax, [bp+@@right]
|
||||
sub ax, [bp+@@left]
|
||||
mov bx, [bp+@@bottom]
|
||||
sub bx, di
|
||||
cwd
|
||||
idiv bx
|
||||
mov [bp+@@x87_tmp], ax
|
||||
fild [bp+@@x87_tmp]
|
||||
xor ax, ax
|
||||
sub ax, [bp+@@bottom]
|
||||
mov [bp+@@x87_tmp], ax
|
||||
fild [bp+@@x87_tmp]
|
||||
fmulp st(1), st
|
||||
call ftol@
|
||||
add [bp+@@right], ax
|
||||
mov [bp+@@bottom], 0
|
||||
|
||||
@@clip_top_at_bottom?:
|
||||
cmp di, (RES_Y - 1)
|
||||
jle short @@setup_coords
|
||||
mov ax, [bp+@@right]
|
||||
sub ax, [bp+@@left]
|
||||
mov bx, [bp+@@bottom]
|
||||
sub bx, di
|
||||
cwd
|
||||
idiv bx
|
||||
mov [bp+@@x87_tmp], ax
|
||||
fild [bp+@@x87_tmp]
|
||||
lea ax, [di-(RES_Y - 1)]
|
||||
mov [bp+@@x87_tmp], ax
|
||||
fild [bp+@@x87_tmp]
|
||||
fmulp st(1), st
|
||||
call ftol@
|
||||
sub [bp+@@left], ax
|
||||
mov di, (RES_Y - 1)
|
||||
|
||||
@@setup_coords:
|
||||
mov ax, [bp+@@right]
|
||||
mov _graph_r_last_line_end.x, ax
|
||||
mov ax, [bp+@@bottom]
|
||||
mov _graph_r_last_line_end.y, ax
|
||||
mov ax, [bp+@@left]
|
||||
mov [bp+@@x_cur], ax
|
||||
mov [bp+@@y_cur], di
|
||||
cmp di, [bp+@@bottom]
|
||||
jge short @@y_up
|
||||
mov ax, 1
|
||||
jmp short @@y_direction_set
|
||||
; ---------------------------------------------------------------------------
|
||||
|
||||
@@y_up:
|
||||
mov ax, -1
|
||||
|
||||
@@y_direction_set:
|
||||
mov [bp+@@y_direction], ax
|
||||
mov ax, [bp+@@right]
|
||||
sub ax, [bp+@@left]
|
||||
mov [bp+@@w], ax
|
||||
mov ax, [bp+@@bottom]
|
||||
sub ax, di
|
||||
imul [bp+@@y_direction]
|
||||
mov [bp+@@h], ax
|
||||
mov [bp+@@pixels], 0
|
||||
mov ax, [bp+@@x_cur]
|
||||
sar ax, 3
|
||||
mov [bp+@@x_vram], ax
|
||||
mov ax, [bp+@@y_cur]
|
||||
mov [bp+@@y_vram], ax
|
||||
cmp _graph_r_restore_from_1, 0
|
||||
jnz short @@select_loop
|
||||
push [bp+@@col]
|
||||
call _grcg_setcolor_rmw
|
||||
pop cx
|
||||
|
||||
@@select_loop:
|
||||
mov ax, [bp+@@w]
|
||||
cmp ax, [bp+@@h]
|
||||
jle @@yloop_setup
|
||||
sar ax, 1
|
||||
mov [bp+@@error], ax
|
||||
mov [bp+@@i], 0
|
||||
jmp @@xloop_more?
|
||||
; ---------------------------------------------------------------------------
|
||||
|
||||
@@xloop:
|
||||
mov ax, [bp+@@x_cur]
|
||||
sar ax, 3
|
||||
cmp ax, [bp+@@x_vram]
|
||||
jnz short @@xloop_put
|
||||
mov ax, [bp+@@y_vram]
|
||||
cmp ax, [bp+@@y_cur]
|
||||
jz @@xloop_advance_cur
|
||||
|
||||
@@xloop_put:
|
||||
mov ax, [bp+@@y_vram]
|
||||
imul ax, ROW_SIZE
|
||||
add ax, [bp+@@x_vram]
|
||||
mov si, ax
|
||||
cmp _graph_r_restore_from_1, 0
|
||||
jnz short @@xloop_restore
|
||||
les bx, _VRAM_PLANE_B
|
||||
add bx, si
|
||||
mov ax, [bp+@@pixels]
|
||||
mov es:[bx], ax
|
||||
mov [bp+@@pixels], 0
|
||||
jmp @@xloop_advance_vram
|
||||
; ---------------------------------------------------------------------------
|
||||
|
||||
@@xloop_restore:
|
||||
dec si
|
||||
push 1
|
||||
call _graph_accesspage_func
|
||||
les bx, _VRAM_PLANE_B
|
||||
add bx, si
|
||||
mov eax, es:[bx]
|
||||
mov [bp+@@page1_B], eax
|
||||
les bx, _VRAM_PLANE_R
|
||||
add bx, si
|
||||
mov eax, es:[bx]
|
||||
mov [bp+@@page1_R], eax
|
||||
les bx, _VRAM_PLANE_G
|
||||
add bx, si
|
||||
mov eax, es:[bx]
|
||||
mov [bp+@@page1_G], eax
|
||||
les bx, _VRAM_PLANE_E
|
||||
add bx, si
|
||||
mov eax, es:[bx]
|
||||
mov [bp+@@page1_E], eax
|
||||
push 0
|
||||
call _graph_accesspage_func
|
||||
add sp, 4
|
||||
les bx, _VRAM_PLANE_B
|
||||
add bx, si
|
||||
mov eax, [bp+@@page1_B]
|
||||
mov es:[bx], eax
|
||||
les bx, _VRAM_PLANE_R
|
||||
add bx, si
|
||||
mov eax, [bp+@@page1_R]
|
||||
mov es:[bx], eax
|
||||
les bx, _VRAM_PLANE_G
|
||||
add bx, si
|
||||
mov eax, [bp+@@page1_G]
|
||||
mov es:[bx], eax
|
||||
les bx, _VRAM_PLANE_E
|
||||
add bx, si
|
||||
mov eax, [bp+@@page1_E]
|
||||
mov es:[bx], eax
|
||||
|
||||
@@xloop_advance_vram:
|
||||
mov ax, [bp+@@y_cur]
|
||||
mov [bp+@@y_vram], ax
|
||||
mov ax, [bp+@@x_cur]
|
||||
sar ax, 3
|
||||
mov [bp+@@x_vram], ax
|
||||
|
||||
@@xloop_advance_cur:
|
||||
mov cl, byte ptr [bp+@@x_cur]
|
||||
and cl, 7
|
||||
mov ax, _graph_r_pattern
|
||||
shr ax, cl
|
||||
or [bp+@@pixels], ax
|
||||
mov al, byte ptr [bp+@@x_cur]
|
||||
and al, 7
|
||||
mov cl, 16
|
||||
sub cl, al
|
||||
mov ax, _graph_r_pattern
|
||||
shl ax, cl
|
||||
or [bp+@@pixels], ax
|
||||
mov ax, [bp+@@h]
|
||||
sub [bp+@@error], ax
|
||||
inc [bp+@@x_cur]
|
||||
cmp [bp+@@error], 0
|
||||
jge short @@xloop_next
|
||||
mov ax, [bp+@@w]
|
||||
add [bp+@@error], ax
|
||||
mov ax, [bp+@@y_direction]
|
||||
add [bp+@@y_cur], ax
|
||||
|
||||
@@xloop_next:
|
||||
inc [bp+@@i]
|
||||
|
||||
@@xloop_more?:
|
||||
mov ax, [bp+@@i]
|
||||
cmp ax, [bp+@@w]
|
||||
jle @@xloop
|
||||
cmp _graph_r_restore_from_1, 0
|
||||
jz @@grcg_off?
|
||||
jmp @@restore_last
|
||||
; ---------------------------------------------------------------------------
|
||||
|
||||
@@yloop_setup:
|
||||
mov ax, [bp+@@h]
|
||||
sar ax, 1
|
||||
mov [bp+@@error], ax
|
||||
mov [bp+@@i], 0
|
||||
jmp @@yloop_more?
|
||||
; ---------------------------------------------------------------------------
|
||||
|
||||
@@yloop:
|
||||
mov ax, [bp+@@x_cur]
|
||||
sar ax, 3
|
||||
cmp ax, [bp+@@x_vram]
|
||||
jnz short @@yloop_put
|
||||
mov ax, [bp+@@y_vram]
|
||||
cmp ax, [bp+@@y_cur]
|
||||
jz @@yloop_advance_cur
|
||||
|
||||
@@yloop_put:
|
||||
mov ax, [bp+@@y_vram]
|
||||
imul ax, ROW_SIZE
|
||||
add ax, [bp+@@x_vram]
|
||||
mov si, ax
|
||||
cmp _graph_r_restore_from_1, 0
|
||||
jnz short @@yloop_restore
|
||||
les bx, _VRAM_PLANE_B
|
||||
add bx, si
|
||||
mov ax, [bp+@@pixels]
|
||||
mov es:[bx], ax
|
||||
mov [bp+@@pixels], 0
|
||||
jmp @@yloop_advance_vram
|
||||
; ---------------------------------------------------------------------------
|
||||
|
||||
@@yloop_restore:
|
||||
dec si
|
||||
push 1
|
||||
call _graph_accesspage_func
|
||||
les bx, _VRAM_PLANE_B
|
||||
add bx, si
|
||||
mov eax, es:[bx]
|
||||
mov [bp+@@page1_B], eax
|
||||
les bx, _VRAM_PLANE_R
|
||||
add bx, si
|
||||
mov eax, es:[bx]
|
||||
mov [bp+@@page1_R], eax
|
||||
les bx, _VRAM_PLANE_G
|
||||
add bx, si
|
||||
mov eax, es:[bx]
|
||||
mov [bp+@@page1_G], eax
|
||||
les bx, _VRAM_PLANE_E
|
||||
add bx, si
|
||||
mov eax, es:[bx]
|
||||
mov [bp+@@page1_E], eax
|
||||
push 0
|
||||
call _graph_accesspage_func
|
||||
add sp, 4
|
||||
les bx, _VRAM_PLANE_B
|
||||
add bx, si
|
||||
mov eax, [bp+@@page1_B]
|
||||
mov es:[bx], eax
|
||||
les bx, _VRAM_PLANE_R
|
||||
add bx, si
|
||||
mov eax, [bp+@@page1_R]
|
||||
mov es:[bx], eax
|
||||
les bx, _VRAM_PLANE_G
|
||||
add bx, si
|
||||
mov eax, [bp+@@page1_G]
|
||||
mov es:[bx], eax
|
||||
les bx, _VRAM_PLANE_E
|
||||
add bx, si
|
||||
mov eax, [bp+@@page1_E]
|
||||
mov es:[bx], eax
|
||||
|
||||
@@yloop_advance_vram:
|
||||
mov ax, [bp+@@y_cur]
|
||||
mov [bp+@@y_vram], ax
|
||||
mov ax, [bp+@@x_cur]
|
||||
sar ax, 3
|
||||
mov [bp+@@x_vram], ax
|
||||
|
||||
@@yloop_advance_cur:
|
||||
mov cl, byte ptr [bp+@@x_cur]
|
||||
and cl, 7
|
||||
mov ax, _graph_r_pattern
|
||||
shr ax, cl
|
||||
or [bp+@@pixels], ax
|
||||
mov al, byte ptr [bp+@@x_cur]
|
||||
and al, 7
|
||||
mov cl, 16
|
||||
sub cl, al
|
||||
mov ax, _graph_r_pattern
|
||||
shl ax, cl
|
||||
or [bp+@@pixels], ax
|
||||
mov ax, [bp+@@w]
|
||||
sub [bp+@@error], ax
|
||||
mov ax, [bp+@@y_direction]
|
||||
add [bp+@@y_cur], ax
|
||||
cmp [bp+@@error], 0
|
||||
jge short @@yloop_next
|
||||
mov ax, [bp+@@h]
|
||||
add [bp+@@error], ax
|
||||
inc [bp+@@x_cur]
|
||||
|
||||
@@yloop_next:
|
||||
inc [bp+@@i]
|
||||
|
||||
@@yloop_more?:
|
||||
mov ax, [bp+@@i]
|
||||
cmp ax, [bp+@@h]
|
||||
jle @@yloop
|
||||
cmp _graph_r_restore_from_1, 0
|
||||
jz @@grcg_off?
|
||||
|
||||
@@restore_last:
|
||||
mov ax, [bp+@@x_cur]
|
||||
sar ax, 3
|
||||
mov dx, [bp+@@y_cur]
|
||||
shl dx, 6
|
||||
add ax, dx
|
||||
mov dx, [bp+@@y_cur]
|
||||
shl dx, 4
|
||||
add ax, dx
|
||||
dec ax
|
||||
mov si, ax
|
||||
push 1
|
||||
call _graph_accesspage_func
|
||||
les bx, _VRAM_PLANE_B
|
||||
add bx, si
|
||||
mov eax, es:[bx]
|
||||
mov [bp+@@page1_B], eax
|
||||
les bx, _VRAM_PLANE_R
|
||||
add bx, si
|
||||
mov eax, es:[bx]
|
||||
mov [bp+@@page1_R], eax
|
||||
les bx, _VRAM_PLANE_G
|
||||
add bx, si
|
||||
mov eax, es:[bx]
|
||||
mov [bp+@@page1_G], eax
|
||||
les bx, _VRAM_PLANE_E
|
||||
add bx, si
|
||||
mov eax, es:[bx]
|
||||
mov [bp+@@page1_E], eax
|
||||
push 0
|
||||
call _graph_accesspage_func
|
||||
add sp, 4
|
||||
les bx, _VRAM_PLANE_B
|
||||
add bx, si
|
||||
mov eax, [bp+@@page1_B]
|
||||
mov es:[bx], eax
|
||||
les bx, _VRAM_PLANE_R
|
||||
add bx, si
|
||||
mov eax, [bp+@@page1_R]
|
||||
mov es:[bx], eax
|
||||
les bx, _VRAM_PLANE_G
|
||||
add bx, si
|
||||
mov eax, [bp+@@page1_G]
|
||||
mov es:[bx], eax
|
||||
les bx, _VRAM_PLANE_E
|
||||
add bx, si
|
||||
mov eax, [bp+@@page1_E]
|
||||
mov es:[bx], eax
|
||||
|
||||
@@grcg_off?:
|
||||
cmp _graph_r_restore_from_1, 0
|
||||
jnz short @@ret
|
||||
call _grcg_off_func
|
||||
|
||||
@@ret:
|
||||
pop di
|
||||
pop si
|
||||
leave
|
||||
retf
|
||||
_graph_r_line endp
|
||||
|
|
@ -7,8 +7,7 @@
|
|||
|
||||
// Graphics
|
||||
// --------
|
||||
void egc_copy_rect_1_to_0(int x, int y, int w, int h);
|
||||
|
||||
#include "th01/hardware/egc.h"
|
||||
#include "th01/hardware/graph.h"
|
||||
// --------
|
||||
|
||||
|
|
|
|||
|
|
@ -6836,7 +6836,6 @@ loc_D7E6:
|
|||
retf
|
||||
sub_D77C endp
|
||||
|
||||
include th01/hardware/graph_r.asm
|
||||
extern _graph_putsa_fx:proc
|
||||
extern _graph_move_byterect_interpage:proc
|
||||
extern _z_respal_set:proc
|
||||
|
|
|
|||
|
|
@ -3176,7 +3176,6 @@ loc_C022:
|
|||
leave
|
||||
retf
|
||||
|
||||
include th01/hardware/graph_r.asm
|
||||
extern _graph_putsa_fx:proc
|
||||
extern _z_respal_set:proc
|
||||
op_06_TEXT ends
|
||||
|
|
@ -3262,7 +3261,7 @@ EGC_START_COPY_DEF 1, far
|
|||
; =============== S U B R O U T I N E =======================================
|
||||
|
||||
; Attributes: bp-based frame
|
||||
|
||||
public _egc_copy_rect_1_to_0
|
||||
_egc_copy_rect_1_to_0 proc far
|
||||
|
||||
var_A = word ptr -0Ah
|
||||
|
|
|
|||
|
|
@ -6439,7 +6439,10 @@ loc_F11D:
|
|||
retf
|
||||
sub_F0B3 endp
|
||||
|
||||
include th01/hardware/graph_r.asm
|
||||
extern _graph_r_vline:proc
|
||||
extern _graph_r_line_from_1:proc
|
||||
extern _graph_r_line_patterned:proc
|
||||
extern _graph_r_line:proc
|
||||
extern _text_extent_fx:proc
|
||||
extern _graph_putsa_fx:proc
|
||||
extern _graph_move_byterect_interpage:proc
|
||||
|
|
|
|||
Loading…
Reference in New Issue