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-rw-r--r--tools/gbagfx/gfx.c329
1 files changed, 0 insertions, 329 deletions
diff --git a/tools/gbagfx/gfx.c b/tools/gbagfx/gfx.c
deleted file mode 100644
index c0f7f492c..000000000
--- a/tools/gbagfx/gfx.c
+++ /dev/null
@@ -1,329 +0,0 @@
-// Copyright (c) 2015 YamaArashi
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <stdbool.h>
-#include "global.h"
-#include "gfx.h"
-#include "util.h"
-
-#define GET_GBA_PAL_RED(x) (((x) >> 0) & 0x1F)
-#define GET_GBA_PAL_GREEN(x) (((x) >> 5) & 0x1F)
-#define GET_GBA_PAL_BLUE(x) (((x) >> 10) & 0x1F)
-
-#define SET_GBA_PAL(r, g, b) (((b) << 10) | ((g) << 5) | (r))
-
-#define UPCONVERT_BIT_DEPTH(x) (((x) * 255) / 31)
-
-#define DOWNCONVERT_BIT_DEPTH(x) ((x) / 8)
-
-static void ConvertFromTiles1Bpp(unsigned char *src, unsigned char *dest, int numTiles, int tilesWidth, bool invertColors)
-{
- int tilesX = 0;
- int tilesY = 0;
- int pitch = tilesWidth;
-
- for (int i = 0; i < numTiles; i++) {
- for (int j = 0; j < 8; j++) {
- int destY = tilesY * 8 + j;
- int destX = tilesX;
- unsigned char srcPixelOctet = *src++;
- unsigned char *destPixelOctet = &dest[destY * pitch + destX];
-
- for (int k = 0; k < 8; k++) {
- *destPixelOctet <<= 1;
- *destPixelOctet |= (srcPixelOctet & 1) ^ invertColors;
- srcPixelOctet >>= 1;
- }
- }
-
- tilesX++;
-
- if (tilesX == tilesWidth) {
- tilesX = 0;
- tilesY++;
- }
- }
-}
-
-static void ConvertFromTiles4Bpp(unsigned char *src, unsigned char *dest, int numTiles, int tilesWidth, bool invertColors)
-{
- int tilesX = 0;
- int tilesY = 0;
- int pitch = tilesWidth * 4;
-
- for (int i = 0; i < numTiles; i++) {
- for (int j = 0; j < 8; j++) {
- int destY = tilesY * 8 + j;
-
- for (int k = 0; k < 4; k++) {
- int destX = tilesX * 4 + k;
- unsigned char srcPixelPair = *src++;
- unsigned char leftPixel = srcPixelPair & 0xF;
- unsigned char rightPixel = srcPixelPair >> 4;
-
- if (invertColors) {
- leftPixel = 15 - leftPixel;
- rightPixel = 15 - rightPixel;
- }
-
- dest[destY * pitch + destX] = (leftPixel << 4) | rightPixel;
- }
- }
-
- tilesX++;
-
- if (tilesX == tilesWidth) {
- tilesX = 0;
- tilesY++;
- }
- }
-}
-
-static void ConvertFromTiles8Bpp(unsigned char *src, unsigned char *dest, int numTiles, int tilesWidth, bool invertColors)
-{
- int tilesX = 0;
- int tilesY = 0;
- int pitch = tilesWidth * 8;
-
- for (int i = 0; i < numTiles; i++) {
- for (int j = 0; j < 8; j++) {
- int destY = tilesY * 8 + j;
-
- for (int k = 0; k < 8; k++) {
- int destX = tilesX * 8 + k;
- unsigned char srcPixel = *src++;
-
- if (invertColors)
- srcPixel = 255 - srcPixel;
-
- dest[destY * pitch + destX] = srcPixel;
- }
- }
-
- tilesX++;
-
- if (tilesX == tilesWidth) {
- tilesX = 0;
- tilesY++;
- }
- }
-}
-
-static void ConvertToTiles1Bpp(unsigned char *src, unsigned char *dest, int numTiles, int tilesWidth, bool invertColors)
-{
- int tilesX = 0;
- int tilesY = 0;
- int pitch = tilesWidth;
-
- for (int i = 0; i < numTiles; i++) {
- for (int j = 0; j < 8; j++) {
- int srcY = tilesY * 8 + j;
- int srcX = tilesX;
- unsigned char srcPixelOctet = src[srcY * pitch + srcX];
- unsigned char *destPixelOctet = dest++;
-
- for (int k = 0; k < 8; k++) {
- *destPixelOctet <<= 1;
- *destPixelOctet |= (srcPixelOctet & 1) ^ invertColors;
- srcPixelOctet >>= 1;
- }
- }
-
- tilesX++;
-
- if (tilesX == tilesWidth) {
- tilesX = 0;
- tilesY++;
- }
- }
-}
-
-static void ConvertToTiles4Bpp(unsigned char *src, unsigned char *dest, int numTiles, int tilesWidth, bool invertColors)
-{
- int tilesX = 0;
- int tilesY = 0;
- int pitch = tilesWidth * 4;
-
- for (int i = 0; i < numTiles; i++) {
- for (int j = 0; j < 8; j++) {
- int srcY = tilesY * 8 + j;
-
- for (int k = 0; k < 4; k++) {
- int srcX = tilesX * 4 + k;
- unsigned char srcPixelPair = src[srcY * pitch + srcX];
- unsigned char leftPixel = srcPixelPair >> 4;
- unsigned char rightPixel = srcPixelPair & 0xF;
-
- if (invertColors) {
- leftPixel = 15 - leftPixel;
- rightPixel = 15 - rightPixel;
- }
-
- *dest++ = (rightPixel << 4) | leftPixel;
- }
- }
-
- tilesX++;
-
- if (tilesX == tilesWidth) {
- tilesX = 0;
- tilesY++;
- }
- }
-}
-
-static void ConvertToTiles8Bpp(unsigned char *src, unsigned char *dest, int numTiles, int tilesWidth, bool invertColors)
-{
- int tilesX = 0;
- int tilesY = 0;
- int pitch = tilesWidth * 8;
-
- for (int i = 0; i < numTiles; i++) {
- for (int j = 0; j < 8; j++) {
- int srcY = tilesY * 8 + j;
-
- for (int k = 0; k < 8; k++) {
- int srcX = tilesX * 8 + k;
- unsigned char srcPixel = src[srcY * pitch + srcX];
-
- if (invertColors)
- srcPixel = 255 - srcPixel;
-
- *dest++ = srcPixel;
- }
- }
-
- tilesX++;
-
- if (tilesX == tilesWidth) {
- tilesX = 0;
- tilesY++;
- }
- }
-}
-
-void ReadImage(char *path, int tilesWidth, int bitDepth, struct Image *image, bool invertColors)
-{
- int tileSize = bitDepth * 8;
-
- int fileSize;
- unsigned char *buffer = ReadWholeFile(path, &fileSize);
-
- int numTiles = fileSize / tileSize;
-
- int tilesHeight = (numTiles + tilesWidth - 1) / tilesWidth;
-
- image->width = tilesWidth * 8;
- image->height = tilesHeight * 8;
- image->bitDepth = bitDepth;
- image->pixels = calloc(tilesWidth * tilesHeight, tileSize);
-
- if (image->pixels == NULL)
- FATAL_ERROR("Failed to allocate memory for pixels.\n");
-
- switch (bitDepth) {
- case 1:
- ConvertFromTiles1Bpp(buffer, image->pixels, numTiles, tilesWidth, invertColors);
- break;
- case 4:
- ConvertFromTiles4Bpp(buffer, image->pixels, numTiles, tilesWidth, invertColors);
- break;
- case 8:
- ConvertFromTiles8Bpp(buffer, image->pixels, numTiles, tilesWidth, invertColors);
- break;
- }
-
- free(buffer);
-}
-
-void WriteImage(char *path, int numTiles, int bitDepth, struct Image *image, bool invertColors)
-{
- int tileSize = bitDepth * 8;
-
- if (image->width % 8 != 0)
- FATAL_ERROR("The width in pixels (%d) isn't a multiple of 8.\n", image->width);
-
- if (image->height % 8 != 0)
- FATAL_ERROR("The height in pixels (%d) isn't a multiple of 8.\n", image->height);
-
- int tilesWidth = image->width / 8;
- int tilesHeight = image->height / 8;
-
- int maxNumTiles = tilesWidth * tilesHeight;
-
- if (numTiles == 0)
- numTiles = maxNumTiles;
- else if (numTiles > maxNumTiles)
- FATAL_ERROR("The specified number of tiles (%d) is greater than the maximum possible value (%d).\n", numTiles, maxNumTiles);
-
- int bufferSize = numTiles * tileSize;
- unsigned char *buffer = malloc(bufferSize);
-
- if (buffer == NULL)
- FATAL_ERROR("Failed to allocate memory for pixels.\n");
-
- switch (bitDepth) {
- case 1:
- ConvertToTiles1Bpp(image->pixels, buffer, numTiles, tilesWidth, invertColors);
- break;
- case 4:
- ConvertToTiles4Bpp(image->pixels, buffer, numTiles, tilesWidth, invertColors);
- break;
- case 8:
- ConvertToTiles8Bpp(image->pixels, buffer, numTiles, tilesWidth, invertColors);
- break;
- }
-
- WriteWholeFile(path, buffer, bufferSize);
-
- free(buffer);
-}
-
-void FreeImage(struct Image *image)
-{
- free(image->pixels);
- image->pixels = NULL;
-}
-
-void ReadGbaPalette(char *path, struct Palette *palette)
-{
- int fileSize;
- unsigned char *data = ReadWholeFile(path, &fileSize);
-
- if (fileSize % 2 != 0)
- FATAL_ERROR("The file size (%d) is not a multiple of 2.\n", fileSize);
-
- palette->numColors = fileSize / 2;
-
- for (int i = 0; i < palette->numColors; i++) {
- uint16_t paletteEntry = (data[i * 2 + 1] << 8) | data[i * 2];
- palette->colors[i].red = UPCONVERT_BIT_DEPTH(GET_GBA_PAL_RED(paletteEntry));
- palette->colors[i].green = UPCONVERT_BIT_DEPTH(GET_GBA_PAL_GREEN(paletteEntry));
- palette->colors[i].blue = UPCONVERT_BIT_DEPTH(GET_GBA_PAL_BLUE(paletteEntry));
- }
-
- free(data);
-}
-
-void WriteGbaPalette(char *path, struct Palette *palette)
-{
- FILE *fp = fopen(path, "wb");
-
- if (fp == NULL)
- FATAL_ERROR("Failed to open \"%s\" for writing.\n", path);
-
- for (int i = 0; i < palette->numColors; i++) {
- unsigned char red = DOWNCONVERT_BIT_DEPTH(palette->colors[i].red);
- unsigned char green = DOWNCONVERT_BIT_DEPTH(palette->colors[i].green);
- unsigned char blue = DOWNCONVERT_BIT_DEPTH(palette->colors[i].blue);
-
- uint16_t paletteEntry = SET_GBA_PAL(red, green, blue);
-
- fputc(paletteEntry & 0xFF, fp);
- fputc(paletteEntry >> 8, fp);
- }
-
- fclose(fp);
-}
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