nethack-gwaa-kiwi/nethack
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more performance fixes for the port code portion

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This commit is contained in:
nhmall
2018-05-06 06:04:33 -04:00
parent ad642f93e6
commit 64cec86abb
1 changed files with 28 additions and 14 deletions
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42
sys/winnt/nttty.c
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@@ -225,10 +225,6 @@ static void initialize_cp_console()
#define CONSOLE_CLEAR_ATTRIBUTE (FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE)
#define CONSOLE_CLEAR_CHARACTER (' ')
#define CONSOLE_BUFFER_WIDTH 80
#define CONSOLE_BUFFER_HEIGHT 26
#define CONSOLE_BUFFER_SIZE (CONSOLE_BUFFER_WIDTH * CONSOLE_BUFFER_HEIGHT)
typedef struct {
WCHAR characters[2];
int count;
@@ -236,9 +232,12 @@ typedef struct {
} cell_t;
typedef struct {
cell_t cells[CONSOLE_BUFFER_HEIGHT][CONSOLE_BUFFER_WIDTH];
cell_t * cells;
} console_buffer_t;
static int buffer_width;
static int buffer_height;
console_buffer_t back_buffer;
console_buffer_t front_buffer;
cell_t clear_cell;
@@ -247,6 +246,7 @@ cell_t undefined_cell;
static boolean buffer_flipping_initialized = FALSE;
static void initialize_buffer_flipping();
static cell_t * buffer_get_cell(console_buffer_t * buffer, int x, int y);
static void back_buffer_flip();
@@ -257,6 +257,14 @@ static void back_buffer_write(cell_t * cell, int x, int y);
static void initialize_buffer_flipping()
{
buffer_width = origcsbi.srWindow.Right - origcsbi.srWindow.Left + 1;
buffer_height = origcsbi.srWindow.Bottom - origcsbi.srWindow.Top + 1;
if (buffer_width > 80) buffer_width = 80;
back_buffer.cells = (cell_t *)malloc(sizeof(cell_t) * buffer_width * buffer_height);
front_buffer.cells = (cell_t *)malloc(sizeof(cell_t) * buffer_width * buffer_height);
clear_cell.attribute = CONSOLE_CLEAR_ATTRIBUTE;
clear_cell.characters[0] = CONSOLE_CLEAR_CHARACTER;
clear_cell.characters[1] = 0;
@@ -271,17 +279,22 @@ static void initialize_buffer_flipping()
buffer_flipping_initialized = TRUE;
}
static cell_t * buffer_get_cell(console_buffer_t * buffer, int x, int y)
{
return buffer->cells + (buffer_width * y) + x;
}
static void back_buffer_flip()
{
cell_t * back_cell = &back_buffer.cells[0][0];
cell_t * front_cell = &front_buffer.cells[0][0];
cell_t * back_cell = back_buffer.cells;
cell_t * front_cell = front_buffer.cells;
COORD pos;
if (!buffer_flipping_initialized)
return;
for (pos.Y = 0; pos.Y < CONSOLE_BUFFER_HEIGHT; pos.Y++) {
for (pos.X = 0; pos.X < CONSOLE_BUFFER_WIDTH; pos.X++, back_cell++, front_cell++) {
for (pos.Y = 0; pos.Y < buffer_height; pos.Y++) {
for (pos.X = 0; pos.X < buffer_width; pos.X++, back_cell++, front_cell++) {
if (back_cell->attribute != front_cell->attribute) {
WriteConsoleOutputAttribute(hConOut, &back_cell->attribute, 1, pos, &acount);
front_cell->attribute = back_cell->attribute;
@@ -303,15 +316,16 @@ static void back_buffer_flip()
static void buffer_fill_to_end(console_buffer_t * buffer, cell_t * src, int x, int y)
{
cell_t * dst = &buffer->cells[y][x];
cell_t * sentinel = &buffer->cells[0][0] + CONSOLE_BUFFER_SIZE;
cell_t * dst = buffer_get_cell(buffer, x, y);
cell_t * sentinel = buffer_get_cell(buffer, 0, buffer_height);
while (dst != sentinel)
*dst++ = clear_cell;
}
static void back_buffer_write(cell_t * cell, int x, int y)
{
back_buffer.cells[y][x] = *cell;
cell_t * dst = buffer_get_cell(&back_buffer, x, y);
*dst = *cell;
}
static void back_buffer_clear_to_end_of_line(int x, int y)
@@ -319,8 +333,8 @@ static void back_buffer_clear_to_end_of_line(int x, int y)
cell_t * cell;
cell_t *sentinel;
cell = &back_buffer.cells[y][x];
sentinel = &back_buffer.cells[y+1][0];
cell = buffer_get_cell(&back_buffer, x, y);
sentinel = buffer_get_cell(&back_buffer, 0, y+1);
while (cell != sentinel)
*cell++ = clear_cell;
}