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/**
* @file lv_test_assert.c
*
* Copyright 2002-2010 Guillaume Cottenceau.
*
* This software may be freely redistributed under the terms
* of the X11 license.
*
*/
/*********************
* INCLUDES
*********************/
#if LV_BUILD_TEST
#include "../lvgl.h"
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include "unity.h"
#define PNG_DEBUG 3
#include <png.h>
/*********************
* DEFINES
*********************/
//#define REF_IMGS_PATH "lvgl/tests/lv_test_ref_imgs/"
#define REF_IMGS_PATH "ref_imgs/"
/**********************
* TYPEDEFS
**********************/
typedef struct {
int width, height;
png_byte color_type;
png_byte bit_depth;
png_structp png_ptr;
png_infop info_ptr;
int number_of_passes;
png_bytep * row_pointers;
}png_img_t;
/**********************
* STATIC PROTOTYPES
**********************/
static int read_png_file(png_img_t * p, const char* file_name);
static void png_release(png_img_t * p);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
bool lv_test_assert_img_eq(const char * fn_ref)
{
char fn_ref_full[512];
sprintf(fn_ref_full, "%s%s", REF_IMGS_PATH, fn_ref);
png_img_t p;
int res = read_png_file(&p, fn_ref_full);
if(res < 0) return false;
uint8_t * screen_buf;
lv_obj_invalidate(lv_scr_act());
lv_refr_now(NULL);
extern lv_color_t test_fb[];
screen_buf = (uint8_t *)test_fb;
uint8_t * ptr_act = NULL;
const png_byte* ptr_ref = NULL;
bool err = false;
int x, y, i_buf = 0;
for (y = 0; y < p.height; y++) {
png_byte* row = p.row_pointers[y];
//printf("\n");
for (x = 0; x < p.width; x++) {
ptr_ref = &(row[x*3]);
ptr_act = &(screen_buf[i_buf*4]);
uint32_t ref_px = 0;
uint32_t act_px = 0;
memcpy(&ref_px, ptr_ref, 3);
memcpy(&act_px, ptr_act, 3);
//printf("0xFF%06x, ", act_px);
uint8_t act_swap[3] = {ptr_act[2], ptr_act[1], ptr_act[0]};
if(memcmp(act_swap, ptr_ref, 3) != 0) {
err = true;
break;
}
i_buf++;
}
if(err) break;
}
png_release(&p);
if(err) {
uint32_t ref_px = 0;
uint32_t act_px = 0;
memcpy(&ref_px, ptr_ref, 3);
memcpy(&act_px, ptr_act, 3);
TEST_PRINTF("Diff in %s at (%d;%d), %x instead of %x)", fn_ref, x, y, act_px, ref_px);
FILE * f = fopen("../test_screenshot_error.h", "w");
fprintf(f, "static const uint32_t test_screenshot_error_data[] = {\n");
i_buf = 0;
for (y = 0; y < 480; y++) {
fprintf(f, "\n");
for (x = 0; x < 800; x++) {
ptr_act = &(screen_buf[i_buf * 4]);
act_px = 0;
memcpy(&act_px, ptr_act, 3);
fprintf(f, "0xFF%06X, ", act_px);
i_buf++;
}
}
fprintf(f, "};\n\n");
fprintf(f, "static lv_img_dsc_t test_screenshot_error_dsc = { \n"
" .header.w = 800,\n"
" .header.h = 480,\n"
" .header.always_zero = 0,\n"
" .header.cf = LV_IMG_CF_TRUE_COLOR,\n"
" .data_size = 800 * 480 * 4,\n"
" .data = test_screenshot_error_data};\n\n"
"static inline void test_screenshot_error_show(void)\n"
"{\n"
" lv_obj_t * img = lv_img_create(lv_scr_act());\n"
" lv_img_set_src(img, &test_screenshot_error_dsc);\n"
"}\n");
fclose(f);
return false;
}
return true;
}
/**********************
* STATIC FUNCTIONS
**********************/
static int read_png_file(png_img_t * p, const char* file_name)
{
char header[8]; // 8 is the maximum size that can be checked
/*open file and test for it being a png*/
FILE *fp = fopen(file_name, "rb");
if (!fp) {
TEST_PRINTF("%s", "PNG file %s could not be opened for reading");
return -1;
}
size_t rcnt = fread(header, 1, 8, fp);
if (rcnt != 8 || png_sig_cmp((png_const_bytep)header, 0, 8)) {
TEST_PRINTF("%s is not recognized as a PNG file", file_name);
return -1;
}
/*initialize stuff*/
p->png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if (!p->png_ptr) {
TEST_PRINTF("%s", "png_create_read_struct failed");
return -1;
}
p->info_ptr = png_create_info_struct(p->png_ptr);
if (!p->info_ptr) {
TEST_PRINTF("%s", "png_create_info_struct failed");
return -1;
}
if (setjmp(png_jmpbuf(p->png_ptr))) {
TEST_PRINTF("%s", "Error during init_io");
return -1;
}
png_init_io(p->png_ptr, fp);
png_set_sig_bytes(p->png_ptr, 8);
png_read_info(p->png_ptr, p->info_ptr);
p->width = png_get_image_width(p->png_ptr, p->info_ptr);
p->height = png_get_image_height(p->png_ptr, p->info_ptr);
p->color_type = png_get_color_type(p->png_ptr, p->info_ptr);
p->bit_depth = png_get_bit_depth(p->png_ptr, p->info_ptr);
p->number_of_passes = png_set_interlace_handling(p->png_ptr);
png_read_update_info(p->png_ptr, p->info_ptr);
/*read file*/
if (setjmp(png_jmpbuf(p->png_ptr))) {
TEST_PRINTF("%s", "Error during read_image");
return -1;
}
p->row_pointers = (png_bytep*) malloc(sizeof(png_bytep) * p->height);
int y;
for (y=0; y<p->height; y++)
p->row_pointers[y] = (png_byte*) malloc(png_get_rowbytes(p->png_ptr,p->info_ptr));
png_read_image(p->png_ptr, p->row_pointers);
fclose(fp);
return 0;
}
static void png_release(png_img_t * p)
{
int y;
for (y=0; y<p->height; y++) free(p->row_pointers[y]);
free(p->row_pointers);
png_destroy_read_struct(&p->png_ptr, &p->info_ptr, NULL);
}
#endif
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