913bc867b7
Using some header information from rom_tool, it was possible to implement something that will accurately determine the real ROM size. With that information, uncart no longer dumps in 2GB chunks, but to the actual size of ROM (all 8 partitions). Warnings were cleaned up as much as possible for now (2 remain). i2c support was added in order to be able to shut down uncart when it is over (it isn't clear that the ASM in start.s is right for returning control to brahma, if that's even possible). More warnings were enabled in the Makefile, and lto was enabled. Currently, the Makefile and the draw.h are configured for a9lh support.
91 lines
2.8 KiB
C
91 lines
2.8 KiB
C
// Copyright 2013 Normmatt
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include "font.h"
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#include "draw.h"
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size_t current_y = 0;
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void ClearScreen(unsigned char *screen, int color)
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{
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int i;
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unsigned char *screenPos = screen;
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for (i = 0; i < (SCREEN_HEIGHT * SCREEN_WIDTH); i++) {
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*(screenPos++) = color >> 16; // B
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*(screenPos++) = color >> 8; // G
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*(screenPos++) = color & 0xFF; // R
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}
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}
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void DrawCharacter(unsigned char *screen, int character, size_t x, size_t y, int color, int bgcolor)
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{
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for (size_t yy = 0; yy < 8; yy++) {
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size_t xDisplacement = (x * BYTES_PER_PIXEL * SCREEN_WIDTH);
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size_t yDisplacement = ((SCREEN_WIDTH - (y + yy) - 1) * BYTES_PER_PIXEL);
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unsigned char *screenPos = screen + xDisplacement + yDisplacement;
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unsigned char charPos = font[(size_t)character * 8 + yy];
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for (int xx = 7; xx >= 0; xx--) {
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if ((charPos >> xx) & 1) {
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*(screenPos + 0) = color >> 16; // B
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*(screenPos + 1) = color >> 8; // G
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*(screenPos + 2) = color & 0xFF; // R
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} else {
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*(screenPos + 0) = bgcolor >> 16; // B
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*(screenPos + 1) = bgcolor >> 8; // G
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*(screenPos + 2) = bgcolor & 0xFF; // R
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}
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screenPos += BYTES_PER_PIXEL * SCREEN_WIDTH;
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}
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}
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}
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void DrawString(unsigned char *screen, const char *str, size_t x, size_t y, int color, int bgcolor)
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{
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const size_t string_len = strlen(str);
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for (size_t i = 0; i < string_len; i++)
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DrawCharacter(screen, str[i], x + i * 8, y, color, bgcolor);
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}
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void DrawStringF(size_t x, size_t y, const char *format, ...)
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{
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char str[256];
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va_list va;
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va_start(va, format);
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vsnprintf(str, 256, format, va);
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va_end(va);
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DrawString(TOP_SCREEN0, str, x, y, RGB(0, 0, 0), RGB(255, 255, 255));
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DrawString(TOP_SCREEN1, str, x, y, RGB(0, 0, 0), RGB(255, 255, 255));
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}
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void Debug(const char *format, ...)
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{
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char str[51];
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const char* spaces = " X";
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va_list va;
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va_start(va, format);
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vsnprintf(str, sizeof(str), format, va);
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va_end(va);
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snprintf(str, sizeof(str), "%s%s", str, spaces);
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DrawString(TOP_SCREEN0, str, 0u, current_y, RGB(255, 0, 0), RGB(255, 255, 255));
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DrawString(TOP_SCREEN0, spaces, 0u, current_y + 10, RGB(255, 0, 0), RGB(255, 255, 255));
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DrawString(TOP_SCREEN1, str, 0u, current_y, RGB(255, 0, 0), RGB(255, 255, 255));
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DrawString(TOP_SCREEN1, spaces, 0u, current_y + 10, RGB(255, 0, 0), RGB(255, 255, 255));
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current_y += 10;
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if (current_y >= 240) {
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current_y = 0;
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}
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}
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