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-//-----------------------------------------------------------------------------
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-// Copyright (c) 2013 GarageGames, LLC
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-//
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-// Permission is hereby granted, free of charge, to any person obtaining a copy
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-// of this software and associated documentation files (the "Software"), to
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-// deal in the Software without restriction, including without limitation the
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-// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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-// sell copies of the Software, and to permit persons to whom the Software is
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-// furnished to do so, subject to the following conditions:
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-//
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-// The above copyright notice and this permission notice shall be included in
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-// all copies or substantial portions of the Software.
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-//
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-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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-// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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-// IN THE SOFTWARE.
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-//-----------------------------------------------------------------------------
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-
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-#include <stdlib.h>
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-#include "/usr/local/include/png.h"
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-#include "/usr/local/include/pngconf.h"
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-//#include "stdafx.h"
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-//#include "C:\\Program Files\\GnuWin32\\include\\png.h"
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-
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-#define MAX_ARGS 10
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-#define TEMP_OUTPUT_FILE "xxtempxx.pvr"
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-#define TEST_PVR_FILE "compare.pvr"
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-
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-extern bool readPvr( FILE* fp);
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-extern bool writePvr( FILE* fp);
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-
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-bool readPNG( char *filename);
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-
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-int gBitsPerPixel = -1;
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-int gChannelWeight = -1;
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-int gGenerateMipMaps = -1;
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-char gPNGFileName[256];
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-char gPVRFileName[256];
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-unsigned long gWidth;
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-unsigned long gHeight;
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-int gBitDepth;
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-int gColorType;
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-long gFsize;
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-bool gIsAlpha;
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-
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-bool parseArgs(int argc, char * const argv[]);
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-void usage();
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-
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-int main (int argc, char * const argv[]) {
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-
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-#if 0
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- FILE *tf;
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- tf = fopen(TEST_PVR_FILE, "rb");
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- readPvr(tf);
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- fclose(tf);
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-#endif
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-
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- FILE *wf;
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- FILE *rf;
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- // insert code here...
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- memset(gPNGFileName,0,256);
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- memset(gPVRFileName,0,256);
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-
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- if(parseArgs(argc, argv)){
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-#if 1
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- char *argv2[MAX_ARGS];
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- for(int i=0; i<MAX_ARGS-1; i++){
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- argv2[i] = new char[256];
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- }
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- strcpy(argv2[0],"texturetool");
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- strcpy(argv2[1],"-e");
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- strcpy(argv2[2],"PVRTC");
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- if(gChannelWeight==0){
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- strcpy(argv2[3],"--channel-weighting-linear");
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- }
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- else if(gChannelWeight==1){
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- strcpy(argv2[3],"--channel-weighting-perceptual");
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- }
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- else{
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- usage();
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- return -1;
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- }
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- if(gBitsPerPixel==2){
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- strcpy(argv2[4],"--bits-per-pixel-2");
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- }
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- else if(gBitsPerPixel==4){
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- strcpy(argv2[4],"--bits-per-pixel-4");
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- }
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- else{
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- usage();
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- return -1;
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- }
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-
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- strcpy(argv2[5],gPNGFileName);
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-
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- strcpy(argv2[6],"-o");
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- strcpy(argv2[7],TEMP_OUTPUT_FILE);
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-
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- if(gGenerateMipMaps==1){
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- strcpy(argv2[8],"-m");
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- }
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- else{
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- delete argv2[MAX_ARGS-2];
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- argv2[MAX_ARGS-2] = NULL;
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- }
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- argv2[MAX_ARGS-1] = NULL;
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-
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- char *newargs = new char[8*1024];
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- memset(newargs, 0, 8*1024);
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- sprintf(newargs,"./%s",argv2[0]);
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- for(int i=1; i<MAX_ARGS-1; i++){
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- if(argv2[i]){
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- strcat(newargs," ");
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- strcat(newargs,argv2[i]);
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- }
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- }
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-
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- system(newargs);
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- //if(execv("texturetool", argv2)<0){
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- // usage();
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- // return -1;
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- //}
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- delete newargs;
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- //printf("\nHere %d\n",gFsize);
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-
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- if(!readPNG(gPNGFileName)){
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- usage();
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- return -1;
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- }
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-
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- wf = fopen(gPVRFileName, "wb");
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- if(!wf){
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- printf("\nCannot open file %s\n\n",gPVRFileName);
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- return -1;
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- }
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-#endif
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- rf = fopen(TEMP_OUTPUT_FILE, "rb");
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- if(!rf){
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- printf("\nCannot open file %s\n\n",TEMP_OUTPUT_FILE);
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- return -1;
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- }
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- fseek(rf,0,SEEK_END);
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- gFsize = ftell(rf);
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- //printf("\nHere %d\n",gFsize);
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- fseek(rf,0,SEEK_SET);
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- char *filedata = new char[gFsize];
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- fread(filedata,1,gFsize,rf);
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- fclose(rf);
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-
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- writePvr(wf);
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- fwrite(filedata,1,gFsize,wf);
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- fclose(wf);
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- delete filedata;
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-
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- return 0;
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-
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- }
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- usage();
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-
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- return -1;
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-}
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-
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-void usage(){
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- printf("\n");
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- printf("Usage: PVRTC_Mac [-m] -b# -wX -i <input_png> -o <output_pvr>");
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- printf("\n");
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- printf(" -m Generate a complete mipmap chain from the input image.\n");
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- printf(" -b# Bits per pixel either 2 or 4 is valid.\n");
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- printf(" -wX Encoding either l = linear or p = perceptual.\n");
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- printf(" -i <input> <input> PNG file must be square power of 2.\n");
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- printf(" -o <output> Write processed image to <output>.");
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- printf("\n\n");
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- printf("Example:\n");
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- printf(" PVRTC_Mac -b2 -wp -i my.png -o my.pvr\n\n");
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- printf("This Will encode my.png with perceptual coding at 2 bits per pixel and output my.pvr.\n");
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- printf("\n\n");
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-/*
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- Usage: texturetool [-hlm] [-e <encoder>] [-p <preview_file>] -o <output> [-f <format>] input_image
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-
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- -h Display this help menu.
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- -l List available encoders, individual encoder options, and file formats.
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- -m Generate a complete mipmap chain from the input image.
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- -e <encoder> Encode texture levels with <encoder>.
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- -p <preview_file> Output a PNG preview of the encoded output to <preview_file>. Requires -e option.
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- -o <output> Write processed image to <output>.
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- -f <format> Set file <format> for <output> image.
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-
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- PVRTC
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- --channel-weighting-linear
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- --channel-weighting-perceptual
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- --bits-per-pixel-2
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- --bits-per-pixel-4
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-
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- Formats:
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- Raw
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- PVR
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-*/
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-}
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-
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-bool parseArgs(int argc, char * const argv[]){
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- if(argc < 7) return false;
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-
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- for(int i=1; i<argc; i++){
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- if(strcmp(argv[i],"-b2")==0){
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- gBitsPerPixel = 2;
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- }
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- if(strcmp(argv[i],"-b4")==0){
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- gBitsPerPixel = 4;
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- }
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- if(strcmp(argv[i],"-wl")==0){
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- gChannelWeight = 0;
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- }
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- if(strcmp(argv[i],"-wp")==0){
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- gChannelWeight = 1;
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- }
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- if(strcmp(argv[i],"-m")==0){
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- gGenerateMipMaps = 1;
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- }
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- if(strcmp(argv[i],"-i")==0){
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- i++;
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- if(i<argc){
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- strcpy(gPNGFileName,argv[i]);
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- }
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- else{
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- return false;
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- }
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- }
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- if(strcmp(argv[i],"-o")==0){
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- i++;
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- if(i<argc){
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- strcpy(gPVRFileName,argv[i]);
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- }
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- else{
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- return false;
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- }
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- }
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- }
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- return true;
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-}
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-
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-//--------------------------------------
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-static void pngFatalErrorFn(png_structp /*png_ptr*/,
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- png_const_charp pMessage)
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-{
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- printf("Error reading PNG file:\n %s", pMessage);
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-}
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-
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-
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-//--------------------------------------
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-static void pngWarningFn(png_structp, png_const_charp pMessage)
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-{
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- printf("Warning reading PNG file:\n %s", pMessage);
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-}
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-
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-png_voidp gPngErrorPtr;
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-
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-bool readPNG( char *filename){
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- static const unsigned int cs_headerBytesChecked = 8;
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- unsigned char header[cs_headerBytesChecked];
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-
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- FILE *fp = fopen(filename, "rb");
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- if (!fp)
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- {
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- return false;
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- }
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- fread(header, 1, cs_headerBytesChecked, fp);
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- bool is_png = !png_sig_cmp(header, 0, cs_headerBytesChecked);
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- if (!is_png)
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- {
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- fclose(fp);
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- return false;
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- }
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-
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- png_structp png_ptr = png_create_read_struct
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- (PNG_LIBPNG_VER_STRING, (png_voidp)gPngErrorPtr,
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- pngFatalErrorFn, pngWarningFn);
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- if (!png_ptr){
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- fclose(fp);
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- return false;
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- }
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- png_infop info_ptr = png_create_info_struct(png_ptr);
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- if (!info_ptr)
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- {
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- png_destroy_read_struct(&png_ptr,
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- (png_infopp)NULL, (png_infopp)NULL);
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- fclose(fp);
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- return false;
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- }
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-
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- png_infop end_info = png_create_info_struct(png_ptr);
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- if (!end_info)
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- {
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- png_destroy_read_struct(&png_ptr, &info_ptr,
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- (png_infopp)NULL);
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- fclose(fp);
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- return false;
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- }
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-
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- if (setjmp(png_jmpbuf(png_ptr)))
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- {
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- png_destroy_read_struct(&png_ptr, &info_ptr,
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- &end_info);
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- fclose(fp);
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- return false;
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- }
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-
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- png_init_io(png_ptr, fp);
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-
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- png_set_sig_bytes(png_ptr, cs_headerBytesChecked);
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-
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- png_read_info(png_ptr, info_ptr);
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-
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- png_get_IHDR(png_ptr, info_ptr,
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- &gWidth, &gHeight, // obv.
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- &gBitDepth, &gColorType, // obv.
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- NULL, // interlace
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- NULL, // compression_type
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- NULL); // filter_type
|
|
|
|
|
-
|
|
|
|
|
- bool transAlpha = false;
|
|
|
|
|
- gIsAlpha = false;
|
|
|
|
|
-
|
|
|
|
|
- if(gWidth != gHeight){
|
|
|
|
|
- printf("Not a square input image %dx%d\n",gWidth,gHeight);
|
|
|
|
|
- return false;
|
|
|
|
|
- }
|
|
|
|
|
- if(gWidth > 1024){
|
|
|
|
|
- printf("Image %dx%d is too large for iPhone\n",gWidth,gHeight);
|
|
|
|
|
- return false;
|
|
|
|
|
- }
|
|
|
|
|
- int count = 0;
|
|
|
|
|
- int temp = gWidth;
|
|
|
|
|
- while(temp > 0){
|
|
|
|
|
- count += temp & 1;
|
|
|
|
|
- temp >>= 1;
|
|
|
|
|
- }
|
|
|
|
|
- if(count != 1){
|
|
|
|
|
- printf("Not a power of 2 image %dx%d\n",gWidth,gHeight);
|
|
|
|
|
- return false;
|
|
|
|
|
- }
|
|
|
|
|
- // Expand a transparency channel into a full alpha channel...
|
|
|
|
|
- //
|
|
|
|
|
- if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) {
|
|
|
|
|
- transAlpha = true;
|
|
|
|
|
- }
|
|
|
|
|
-
|
|
|
|
|
- if (gColorType == PNG_COLOR_TYPE_PALETTE)
|
|
|
|
|
- {
|
|
|
|
|
- gIsAlpha = transAlpha;
|
|
|
|
|
- }
|
|
|
|
|
- else if (gColorType == PNG_COLOR_TYPE_GRAY_ALPHA)
|
|
|
|
|
- {
|
|
|
|
|
- gIsAlpha = true;
|
|
|
|
|
- }
|
|
|
|
|
- else if (gColorType == PNG_COLOR_TYPE_RGB_ALPHA)
|
|
|
|
|
- {
|
|
|
|
|
- gIsAlpha = true;
|
|
|
|
|
- }
|
|
|
|
|
-
|
|
|
|
|
- fclose(fp);
|
|
|
|
|
- return true;
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-/*
|
|
|
|
|
-static void pngReadDataFn(png_structp png_ptr,
|
|
|
|
|
- png_bytep data,
|
|
|
|
|
- png_size_t length)
|
|
|
|
|
-{
|
|
|
|
|
-
|
|
|
|
|
- bool success = sg_pStream->read(length, data);
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-
|
|
|
|
|
-//--------------------------------------
|
|
|
|
|
-static void pngWriteDataFn(png_structp png_ptr,
|
|
|
|
|
- png_bytep data,
|
|
|
|
|
- png_size_t length)
|
|
|
|
|
-{
|
|
|
|
|
- AssertFatal(sg_pStream != NULL, "No stream?");
|
|
|
|
|
-
|
|
|
|
|
- sg_pStream->write(length, data);
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-//--------------------------------------
|
|
|
|
|
-static void pngFlushDataFn(png_structp png_ptr)
|
|
|
|
|
-{
|
|
|
|
|
- //
|
|
|
|
|
-}
|
|
|
|
|
-*/
|
|
|
|
|
-/*
|
|
|
|
|
-//--------------------------------------
|
|
|
|
|
-bool GBitmap::readPNG(Stream& io_rStream)
|
|
|
|
|
-{
|
|
|
|
|
- static const U32 cs_headerBytesChecked = 8;
|
|
|
|
|
-
|
|
|
|
|
- U8 header[cs_headerBytesChecked];
|
|
|
|
|
- io_rStream.read(cs_headerBytesChecked, header);
|
|
|
|
|
-
|
|
|
|
|
- bool isPng = png_check_sig(header, cs_headerBytesChecked) != 0;
|
|
|
|
|
- if (isPng == false)
|
|
|
|
|
- {
|
|
|
|
|
- AssertWarn(false, "GBitmap::readPNG: stream doesn't contain a PNG");
|
|
|
|
|
- return false;
|
|
|
|
|
- }
|
|
|
|
|
-
|
|
|
|
|
- U32 prevWaterMark = FrameAllocator::getWaterMark();
|
|
|
|
|
-
|
|
|
|
|
-#if defined(PNG_USER_MEM_SUPPORTED)
|
|
|
|
|
- png_structp png_ptr = png_create_read_struct_2(PNG_LIBPNG_VER_STRING,
|
|
|
|
|
- NULL,
|
|
|
|
|
- pngFatalErrorFn,
|
|
|
|
|
- pngWarningFn,
|
|
|
|
|
- NULL,
|
|
|
|
|
- pngMallocFn,
|
|
|
|
|
- pngFreeFn);
|
|
|
|
|
-#else
|
|
|
|
|
- png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
|
|
|
|
|
- NULL,
|
|
|
|
|
- pngFatalErrorFn,
|
|
|
|
|
- pngWarningFn);
|
|
|
|
|
-#endif
|
|
|
|
|
-
|
|
|
|
|
- if (png_ptr == NULL)
|
|
|
|
|
- {
|
|
|
|
|
- FrameAllocator::setWaterMark(prevWaterMark);
|
|
|
|
|
- return false;
|
|
|
|
|
- }
|
|
|
|
|
-
|
|
|
|
|
- // Enable optimizations if appropriate.
|
|
|
|
|
-#if defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
|
|
|
|
|
- png_uint_32 mask, flags;
|
|
|
|
|
-
|
|
|
|
|
- flags = png_get_asm_flags(png_ptr);
|
|
|
|
|
- mask = png_get_asm_flagmask(PNG_SELECT_READ | PNG_SELECT_WRITE);
|
|
|
|
|
- png_set_asm_flags(png_ptr, flags | mask);
|
|
|
|
|
-#endif
|
|
|
|
|
-
|
|
|
|
|
- png_infop info_ptr = png_create_info_struct(png_ptr);
|
|
|
|
|
- if (info_ptr == NULL) {
|
|
|
|
|
- png_destroy_read_struct(&png_ptr,
|
|
|
|
|
- (png_infopp)NULL,
|
|
|
|
|
- (png_infopp)NULL);
|
|
|
|
|
- FrameAllocator::setWaterMark(prevWaterMark);
|
|
|
|
|
- return false;
|
|
|
|
|
- }
|
|
|
|
|
-
|
|
|
|
|
- png_infop end_info = png_create_info_struct(png_ptr);
|
|
|
|
|
- if (end_info == NULL) {
|
|
|
|
|
- png_destroy_read_struct(&png_ptr,
|
|
|
|
|
- &info_ptr,
|
|
|
|
|
- (png_infopp)NULL);
|
|
|
|
|
- FrameAllocator::setWaterMark(prevWaterMark);
|
|
|
|
|
- return false;
|
|
|
|
|
- }
|
|
|
|
|
-
|
|
|
|
|
- sg_pStream = &io_rStream;
|
|
|
|
|
- png_set_read_fn(png_ptr, NULL, pngReadDataFn);
|
|
|
|
|
-
|
|
|
|
|
- // Read off the info on the image.
|
|
|
|
|
- png_set_sig_bytes(png_ptr, cs_headerBytesChecked);
|
|
|
|
|
- png_read_info(png_ptr, info_ptr);
|
|
|
|
|
-
|
|
|
|
|
- // OK, at this point, if we have reached it ok, then we can reset the
|
|
|
|
|
- // image to accept the new data...
|
|
|
|
|
- //
|
|
|
|
|
- deleteImage();
|
|
|
|
|
-
|
|
|
|
|
- png_uint_32 width;
|
|
|
|
|
- png_uint_32 height;
|
|
|
|
|
- S32 bit_depth;
|
|
|
|
|
- S32 color_type;
|
|
|
|
|
-
|
|
|
|
|
- png_get_IHDR(png_ptr, info_ptr,
|
|
|
|
|
- &width, &height, // obv.
|
|
|
|
|
- &bit_depth, &color_type, // obv.
|
|
|
|
|
- NULL, // interlace
|
|
|
|
|
- NULL, // compression_type
|
|
|
|
|
- NULL); // filter_type
|
|
|
|
|
-
|
|
|
|
|
- // First, handle the color transformations. We need this to read in the
|
|
|
|
|
- // data as RGB or RGBA, _always_, with a maximal channel width of 8 bits.
|
|
|
|
|
- //
|
|
|
|
|
- bool transAlpha = false;
|
|
|
|
|
- BitmapFormat format = RGB;
|
|
|
|
|
-
|
|
|
|
|
- // Strip off any 16 bit info
|
|
|
|
|
- //
|
|
|
|
|
- if (bit_depth == 16) {
|
|
|
|
|
- png_set_strip_16(png_ptr);
|
|
|
|
|
- }
|
|
|
|
|
-
|
|
|
|
|
- // Expand a transparency channel into a full alpha channel...
|
|
|
|
|
- //
|
|
|
|
|
- if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) {
|
|
|
|
|
- png_set_expand(png_ptr);
|
|
|
|
|
- transAlpha = true;
|
|
|
|
|
- }
|
|
|
|
|
-
|
|
|
|
|
- if (color_type == PNG_COLOR_TYPE_PALETTE)
|
|
|
|
|
- {
|
|
|
|
|
- png_set_expand(png_ptr);
|
|
|
|
|
- format = transAlpha ? RGBA : RGB;
|
|
|
|
|
- }
|
|
|
|
|
- else if (color_type == PNG_COLOR_TYPE_GRAY)
|
|
|
|
|
- {
|
|
|
|
|
- png_set_expand(png_ptr);
|
|
|
|
|
- //png_set_gray_to_rgb(png_ptr);
|
|
|
|
|
- format = Alpha; //transAlpha ? RGBA : RGB;
|
|
|
|
|
- }
|
|
|
|
|
- else if (color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
|
|
|
|
|
- {
|
|
|
|
|
- png_set_expand(png_ptr);
|
|
|
|
|
- png_set_gray_to_rgb(png_ptr);
|
|
|
|
|
- format = RGBA;
|
|
|
|
|
- }
|
|
|
|
|
- else if (color_type == PNG_COLOR_TYPE_RGB)
|
|
|
|
|
- {
|
|
|
|
|
- format = transAlpha ? RGBA : RGB;
|
|
|
|
|
- png_set_expand(png_ptr);
|
|
|
|
|
- }
|
|
|
|
|
- else if (color_type == PNG_COLOR_TYPE_RGB_ALPHA)
|
|
|
|
|
- {
|
|
|
|
|
- png_set_expand(png_ptr);
|
|
|
|
|
- format = RGBA;
|
|
|
|
|
- }
|
|
|
|
|
-
|
|
|
|
|
- // Update the info pointer with the result of the transformations
|
|
|
|
|
- // above...
|
|
|
|
|
- png_read_update_info(png_ptr, info_ptr);
|
|
|
|
|
-
|
|
|
|
|
- png_uint_32 rowBytes = png_get_rowbytes(png_ptr, info_ptr);
|
|
|
|
|
- if (format == RGB) {
|
|
|
|
|
- AssertFatal(rowBytes == width * 3,
|
|
|
|
|
- "Error, our rowbytes are incorrect for this transform... (3)");
|
|
|
|
|
- }
|
|
|
|
|
- else if (format == RGBA)
|
|
|
|
|
- {
|
|
|
|
|
- AssertFatal(rowBytes == width * 4,
|
|
|
|
|
- "Error, our rowbytes are incorrect for this transform... (4)");
|
|
|
|
|
- }
|
|
|
|
|
-
|
|
|
|
|
- // actually allocate the bitmap space...
|
|
|
|
|
- allocateBitmap(width, height,
|
|
|
|
|
- false, // don't extrude miplevels...
|
|
|
|
|
- format); // use determined format...
|
|
|
|
|
-
|
|
|
|
|
- // Set up the row pointers...
|
|
|
|
|
- AssertISV(height <= csgMaxRowPointers, "Error, cannot load pngs taller than 2048 pixels!");
|
|
|
|
|
- png_bytep* rowPointers = sRowPointers;
|
|
|
|
|
- U8* pBase = (U8*)getBits();
|
|
|
|
|
- for (U32 i = 0; i < height; i++)
|
|
|
|
|
- rowPointers[i] = pBase + (i * rowBytes);
|
|
|
|
|
-
|
|
|
|
|
- // And actually read the image!
|
|
|
|
|
- png_read_image(png_ptr, rowPointers);
|
|
|
|
|
-
|
|
|
|
|
- // We're outta here, destroy the png structs, and release the lock
|
|
|
|
|
- // as quickly as possible...
|
|
|
|
|
- //png_read_end(png_ptr, end_info);
|
|
|
|
|
- png_read_end(png_ptr, NULL);
|
|
|
|
|
- png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
|
|
|
|
|
-
|
|
|
|
|
- sg_pStream = NULL;
|
|
|
|
|
-
|
|
|
|
|
- // Ok, the image is read in, now we need to finish up the initialization,
|
|
|
|
|
- // which means: setting up the detailing members, init'ing the palette
|
|
|
|
|
- // key, etc...
|
|
|
|
|
- //
|
|
|
|
|
- // actually, all of that was handled by allocateBitmap, so we're outta here
|
|
|
|
|
- //
|
|
|
|
|
- FrameAllocator::setWaterMark(prevWaterMark);
|
|
|
|
|
-
|
|
|
|
|
- //
|
|
|
|
|
- //-Mat if all palleted images are to be converted, set mForce16bit
|
|
|
|
|
- if( color_type == PNG_COLOR_TYPE_PALETTE ) {
|
|
|
|
|
- sgForcePalletedPNGsTo16Bit = dAtob( Con::getVariable("$pref::iPhone::ForcePalletedPNGsTo16Bit") );
|
|
|
|
|
- if( sgForcePalletedPNGsTo16Bit ) {
|
|
|
|
|
- mForce16Bit = true;
|
|
|
|
|
- }
|
|
|
|
|
- }
|
|
|
|
|
- return true;
|
|
|
|
|
-}
|
|
|
|
|
-*/
|
|
|
Mike Lilligreen