135 lines
1.9 KiB
C++
135 lines
1.9 KiB
C++
//
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// For displaying debug messages.
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//
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#include "always.h"
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#include "font.h"
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// ========================================================
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//
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// THE LOG DISPLAY MESSAGE CIRCULAR QUEUE.
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//
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// ========================================================
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#define LOG_DISPLAY_MESSAGE_LENGTH 128
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typedef struct
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{
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ULONG colour;
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CBYTE message[LOG_DISPLAY_MESSAGE_LENGTH];
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} LOG_Display;
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#define LOG_MAX_DISPLAY 32 // Power of 2 please!
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LOG_Display LOG_display[LOG_MAX_DISPLAY];
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SLONG LOG_display_last; // The index of the last message.
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//
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// The file we output to.
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//
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FILE *LOG_handle;
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//
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// Clears out all messages.
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//
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void LOG_init()
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{
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LOG_display_last = 0;
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memset(LOG_display, 0, sizeof(LOG_display));
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LOG_handle = fopen("c:\\debuglog.txt", "wb");
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}
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//
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// Adds a message to the display system.
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//
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void LOG_message(ULONG colour, CBYTE *fmt, ...)
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{
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//
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// Work out the real message.
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//
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CBYTE message[512];
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va_list ap;
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va_start(ap, fmt);
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vsprintf(message, fmt, ap);
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va_end (ap);
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//
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// Add to the circular queue.
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//
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LOG_display_last += 1;
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LOG_display_last &= LOG_MAX_DISPLAY - 1;
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strncpy(LOG_display[LOG_display_last].message, message, LOG_DISPLAY_MESSAGE_LENGTH - 1);
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LOG_display[LOG_display_last].colour = colour;
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}
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void LOG_draw()
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{
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SLONG i;
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SLONG mess;
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float y = 0.95F;
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FONT_format(FONT_FLAG_JUSTIFY_LEFT);
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for (i = 0; i < LOG_MAX_DISPLAY; i++)
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{
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mess = LOG_display_last - i;
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mess &= LOG_MAX_DISPLAY - 1;
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if (LOG_display[mess].message)
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{
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FONT_draw(0.03F, y, LOG_display[mess].colour, 0.5F, -1, LOG_display[mess].message);
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y -= 0.025F;
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}
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}
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}
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void LOG_file(CBYTE *fmt, ...)
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{
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//
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// Work out the real message.
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//
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CBYTE message[512];
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va_list ap;
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va_start(ap, fmt);
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vsprintf(message, fmt, ap);
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va_end (ap);
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if (LOG_handle)
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{
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fprintf(LOG_handle, "%s", message);
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}
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}
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void LOG_fini()
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{
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if (LOG_handle)
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{
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fclose(LOG_handle);
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}
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} |