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-rw-r--r--src/trace/imagemap.cpp353
1 files changed, 353 insertions, 0 deletions
diff --git a/src/trace/imagemap.cpp b/src/trace/imagemap.cpp
new file mode 100644
index 0000000..ff54b7e
--- /dev/null
+++ b/src/trace/imagemap.cpp
@@ -0,0 +1,353 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** @file
+ * TODO: insert short description here
+ *//*
+ * Authors: see git history
+ *
+ * Copyright (C) 2018 Authors
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+#include <cstdlib>
+
+#include "imagemap.h"
+
+#include "io/sys.h"
+
+/*#########################################################################
+### G R A Y M A P
+#########################################################################*/
+
+
+static void gSetPixel(GrayMap *me, int x, int y, unsigned long val)
+{
+ if (val>765)
+ val = 765;
+ unsigned long *pix = me->rows[y] + x;
+ *pix = val;
+}
+
+static unsigned long gGetPixel(GrayMap *me, int x, int y)
+{
+ unsigned long *pix = me->rows[y] + x;
+ return *pix;
+}
+
+
+static int gWritePPM(GrayMap *me, char *fileName)
+{
+ if (!fileName)
+ return FALSE;
+
+ FILE *f = fopen(fileName, "wb");
+ if (!f)
+ return FALSE;
+
+ fprintf(f, "P6 %d %d 255\n", me->width, me->height);
+
+ for (int y=0 ; y<me->height; y++)
+ {
+ for (int x=0 ; x<me->width ; x++)
+ {
+ unsigned long pix = me->getPixel(me, x, y) / 3;
+ unsigned char pixb = (unsigned char) (pix & 0xff);
+ fputc(pixb, f);
+ fputc(pixb, f);
+ fputc(pixb, f);
+ }
+ }
+ fclose(f);
+ return TRUE;
+}
+
+
+static void gDestroy(GrayMap *me)
+{
+ if (me->pixels)
+ free(me->pixels);
+ if (me->rows)
+ free(me->rows);
+ free(me);
+}
+
+GrayMap *GrayMapCreate(int width, int height)
+{
+
+ GrayMap *me = (GrayMap *)malloc(sizeof(GrayMap));
+ if (!me)
+ return nullptr;
+
+ /** methods **/
+ me->setPixel = gSetPixel;
+ me->getPixel = gGetPixel;
+ me->writePPM = gWritePPM;
+ me->destroy = gDestroy;
+
+ /** fields **/
+ me->width = width;
+ me->height = height;
+ me->pixels = (unsigned long *)
+ malloc(sizeof(unsigned long) * width * height);
+ if (!me->pixels)
+ {
+ g_warning("GrayMapCreate: can not allocate memory for %d x %d image.", width, height);
+ free(me);
+ return nullptr;
+ }
+ me->rows = (unsigned long **)
+ malloc(sizeof(unsigned long *) * height);
+ if (!me->rows)
+ {
+ g_warning("GrayMapCreate: can not allocate memory for index of %d x %d image.", width, height);
+ free(me->pixels);
+ free(me);
+ return nullptr;
+ }
+
+ unsigned long *row = me->pixels;
+ for (int i=0 ; i<height ; i++)
+ {
+ me->rows[i] = row;
+ row += width;
+ }
+
+ return me;
+}
+
+
+
+/*#########################################################################
+### R G B M A P
+#########################################################################*/
+
+
+
+static void rSetPixel(RgbMap *me, int x, int y, int r, int g, int b)
+{
+ RGB *pix = me->rows[y] + x;
+ pix->r = r;
+ pix->g = g;
+ pix->b = b;
+}
+
+static void rSetPixelRGB(RgbMap *me, int x, int y, RGB rgb)
+{
+ RGB *pix = me->rows[y] + x;
+ *pix = rgb;
+}
+
+static RGB rGetPixel(RgbMap *me, int x, int y)
+{
+ RGB *pix = me->rows[y] + x;
+ return *pix;
+}
+
+
+
+static int rWritePPM(RgbMap *me, char *fileName)
+{
+ if (!fileName)
+ return FALSE;
+
+ FILE *f = fopen(fileName, "wb");
+ if (!f)
+ return FALSE;
+
+ fprintf(f, "P6 %d %d 255\n", me->width, me->height);
+
+ for (int y=0 ; y<me->height; y++)
+ {
+ for (int x=0 ; x<me->width ; x++)
+ {
+ RGB rgb = me->getPixel(me, x, y);
+ fputc(rgb.r, f);
+ fputc(rgb.g, f);
+ fputc(rgb.b, f);
+ }
+ }
+ fclose(f);
+ return TRUE;
+}
+
+
+static void rDestroy(RgbMap *me)
+{
+ if (me->pixels){
+ free(me->pixels);
+ }
+ if (me->rows){
+ free(me->rows);
+ }
+ free(me);
+}
+
+
+
+RgbMap *RgbMapCreate(int width, int height)
+{
+
+ RgbMap *me = (RgbMap *)malloc(sizeof(RgbMap));
+ if (!me){
+ return nullptr;
+ }
+
+ /** methods **/
+ me->setPixel = rSetPixel;
+ me->setPixelRGB = rSetPixelRGB;
+ me->getPixel = rGetPixel;
+ me->writePPM = rWritePPM;
+ me->destroy = rDestroy;
+
+
+ /** fields **/
+ me->width = width;
+ me->height = height;
+ me->pixels = (RGB *) malloc(sizeof(RGB) * width * height);
+ if (!me->pixels){
+ g_warning("RgbMapCreate: can not allocate memory for %d x %d image.", width, height);
+ free(me);
+ return nullptr;
+ }
+ me->rows = (RGB **) malloc(sizeof(RGB *) * height);
+ if (!me->rows){
+ g_warning("RgbMapCreate: can not allocate memory for index of %d x %d image.", width, height);
+ free(me->pixels); //allocated as me->pixels is not NULL here: see previous check
+ free(me);
+ return nullptr;
+ }
+
+ RGB *row = me->pixels;
+ for (int i=0 ; i<height ; i++){
+ me->rows[i] = row;
+ row += width;
+ }
+
+ return me;
+}
+
+
+
+
+/*#########################################################################
+### I N D E X E D M A P
+#########################################################################*/
+
+
+
+static void iSetPixel(IndexedMap *me, int x, int y, unsigned int index)
+{
+ unsigned int *pix = me->rows[y] + x;
+ *pix = index;
+}
+
+
+static unsigned int iGetPixel(IndexedMap *me, int x, int y)
+{
+ unsigned int *pix = me->rows[y] + x;
+ return *pix;
+}
+
+static RGB iGetPixelValue(IndexedMap *me, int x, int y)
+{
+ unsigned int *pix = me->rows[y] + x;
+ RGB rgb = me->clut[((*pix)&0xff)];
+ return rgb;
+}
+
+
+
+static int iWritePPM(IndexedMap *me, char *fileName)
+{
+ if (!fileName)
+ return FALSE;
+
+ FILE *f = fopen(fileName, "wb");
+ if (!f)
+ return FALSE;
+
+ fprintf(f, "P6 %d %d 255\n", me->width, me->height);
+
+ for (int y=0 ; y<me->height; y++)
+ {
+ for (int x=0 ; x<me->width ; x++)
+ {
+ RGB rgb = me->getPixelValue(me, x, y);
+ fputc(rgb.r, f);
+ fputc(rgb.g, f);
+ fputc(rgb.b, f);
+ }
+ }
+ fclose(f);
+ return TRUE;
+}
+
+
+static void iDestroy(IndexedMap *me)
+{
+ if (me->pixels){
+ free(me->pixels);
+ }
+ if (me->rows){
+ free(me->rows);
+ }
+ free(me);
+}
+
+
+
+IndexedMap *IndexedMapCreate(int width, int height)
+{
+
+ IndexedMap *me = (IndexedMap *)malloc(sizeof(IndexedMap));
+ if (!me)
+ return nullptr;
+
+ /** methods **/
+ me->setPixel = iSetPixel;
+ me->getPixel = iGetPixel;
+ me->getPixelValue = iGetPixelValue;
+ me->writePPM = iWritePPM;
+ me->destroy = iDestroy;
+
+
+ /** fields **/
+ me->width = width;
+ me->height = height;
+ me->pixels = (unsigned int *) malloc(sizeof(unsigned int) * width * height);
+ if (!me->pixels){
+ g_warning("IndexedMapCreate: can not allocate memory for %d x %d image.", width, height);
+ free(me);
+ return nullptr;
+ }
+ me->rows = (unsigned int **) malloc(sizeof(unsigned int *) * height);
+ if (!me->rows){
+ g_warning("IndexedMapCreate: can not allocate memory for index of %d x %d image.", width, height);
+ free(me->pixels); //allocated as me->pixels is not NULL here: see previous check
+ free(me);
+ return nullptr;
+ }
+
+ unsigned int *row = me->pixels;
+ for (int i=0 ; i<height ; i++){
+ me->rows[i] = row;
+ row += width;
+ }
+
+ me->nrColors = 0;
+
+ RGB rgb;
+ rgb.r = rgb.g = rgb.b = 0;
+ for (auto & i : me->clut){
+ i = rgb;
+ }
+
+ return me;
+}
+
+
+
+
+
+
+/*#########################################################################
+### E N D O F F I L E
+#########################################################################*/
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-30 21:21:58 +0000