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Backport lv_lib_freetype from LVGL v8.x #249

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This commit is contained in:
fvanroie 2022-05-03 17:51:00 +02:00
parent a9859e7338
commit 651be6acb1
6 changed files with 648 additions and 323 deletions
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790
lib/lv_lib_freetype/lv_freetype.c
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@ -3,11 +3,19 @@
*
*/
#if defined(ARDUINO_ARCH_ESP32)
/*********************
* INCLUDES
*********************/
#include "lv_freetype.h"
#if HASP_USE_FREETYPE
#include "ft2build.h"
#include FT_FREETYPE_H
#include FT_GLYPH_H
#include FT_CACHE_H
#include FT_SIZES_H
#include FT_IMAGE_H
#include FT_OUTLINE_H
#include "lv_freetype.h"
#include "freertos/FreeRTOS.h"
@ -20,6 +28,8 @@
#define ARDUINO_RUNNING_CORE 1
#endif
#define LV_USE_FT_STACK_SIZE 24 * 1024 // FreeType consumes a large amount of stack
/*
* FreeType requires up to 32KB of stack to run, which overflows the stack of 8KB.
*
@ -53,36 +63,60 @@ typedef bool FT_glyph_dsc_response;
/**********************
* TYPEDEFS
**********************/
typedef struct
{
lv_ll_t face_ll;
} lv_faces_control_t;
typedef struct name_refer_t
{
const char* name; /* point to font name string */
int32_t cnt; /* reference count */
} name_refer_t;
/**********************
* STATIC PROTOTYPES
**********************/
#if LV_FREETYPE_CACHE_SIZE >= 0
static void face_generic_finalizer_cache(void* object);
static FT_Error font_face_requester(FTC_FaceID face_id, FT_Library library_is, FT_Pointer req_data, FT_Face* aface);
static bool lv_ft_font_init_cache(lv_ft_info_t* info);
static void lv_ft_font_destroy_cache(lv_font_t* font);
#else
static FT_Face face_find_in_list(lv_ft_info_t* info);
static void face_add_to_list(FT_Face face);
static void face_remove_from_list(FT_Face face);
static void face_generic_finalizer(void* object);
static bool get_glyph_dsc_cb(const lv_font_t* font, lv_font_glyph_dsc_t* dsc_out, uint32_t unicode_letter,
uint32_t unicode_letter_next);
static const uint8_t* get_glyph_bitmap_cb(const lv_font_t* font, uint32_t unicode_letter);
#if LV_USE_FT_CACHE_MANAGER
static FT_Error font_face_requester(FTC_FaceID face_id, FT_Library library_is, FT_Pointer req_data, FT_Face* aface);
static bool lv_ft_font_init_nocache(lv_ft_info_t* info);
static void lv_ft_font_destroy_nocache(lv_font_t* font);
#endif
static const char* name_refer_save(const char* name);
static void name_refer_del(const char* name);
static const char* name_refer_find(const char* name);
/**********************
* STATIC VARIABLES
**********************/
static FT_Library library;
static lv_ll_t names_ll;
#if LV_USE_FT_CACHE_MANAGER
#if LV_FREETYPE_CACHE_SIZE >= 0
static FTC_Manager cache_manager;
static FTC_CMapCache cmap_cache;
static FT_Face current_face = NULL;
#if LV_FREETYPE_SBIT_CACHE
static FTC_SBitCache sbit_cache;
static FTC_SBit sbit;
#else
static FTC_ImageCache image_cache;
static FT_Glyph image_glyph;
#endif
#else
static lv_faces_control_t face_control;
#endif
/**********************
* MACROS
@ -91,19 +125,20 @@ static lv_faces_control_t face_control;
/**********************
* GLOBAL FUNCTIONS
**********************/
bool lv_freetype_init(FT_UInt max_faces, FT_UInt max_sizes, FT_ULong max_bytes)
{
face_control.cnt = 0;
face_control.num = max_faces;
_lv_ll_init(&face_control.face_ll, sizeof(FT_Face*));
/*********************************************************************************************************************/
bool lv_freetype_init(uint16_t max_faces, uint16_t max_sizes, uint32_t max_bytes)
{
FT_Error error = FT_Init_FreeType(&library);
if(error) {
LV_LOG_ERROR("init freeType error(%d)", error);
return false;
}
#if LV_USE_FT_CACHE_MANAGER
_lv_ll_init(&names_ll, sizeof(name_refer_t));
#if LV_FREETYPE_CACHE_SIZE >= 0
error = FTC_Manager_New(library, max_faces, max_sizes, max_bytes, font_face_requester, NULL, &cache_manager);
if(error) {
FT_Done_FreeType(library);
@ -117,11 +152,19 @@ bool lv_freetype_init(FT_UInt max_faces, FT_UInt max_sizes, FT_ULong max_bytes)
goto Fail;
}
#if LV_FREETYPE_SBIT_CACHE
error = FTC_SBitCache_New(cache_manager, &sbit_cache);
if(error) {
LV_LOG_ERROR("Failed to open sbit cache");
goto Fail;
}
#else
error = FTC_ImageCache_New(cache_manager, &image_cache);
if(error) {
LV_LOG_ERROR("Failed to open image cache");
goto Fail;
}
#endif
// initialize the queues to send request and receive response
FTRequestQueue = xQueueCreate(1, sizeof(FT_glyph_dsc_request));
@ -138,15 +181,17 @@ Fail:
FT_Done_FreeType(library);
return false;
#else
LV_UNUSED(max_faces);
LV_UNUSED(max_sizes);
LV_UNUSED(max_bytes);
_lv_ll_init(&face_control.face_ll, sizeof(FT_Face*));
return true;
#endif /* LV_USE_FT_CACHE_MANAGER */
#endif /* LV_FREETYPE_CACHE_SIZE */
}
void lv_freetype_destroy(void)
{
#if LV_USE_FT_CACHE_MANAGER
#if LV_FREETYPE_CACHE_SIZE >= 0
FTC_Manager_Done(cache_manager);
#endif
FT_Done_FreeType(library);
@ -154,170 +199,82 @@ void lv_freetype_destroy(void)
bool lv_ft_font_init(lv_ft_info_t* info)
{
lv_font_fmt_ft_dsc_t* dsc = lv_mem_alloc(sizeof(lv_font_fmt_ft_dsc_t));
if(dsc == NULL) return false;
dsc->font = lv_mem_alloc(sizeof(lv_font_t));
if(dsc->font == NULL) {
lv_mem_free(dsc);
return false;
}
lv_face_info_t* face_info = NULL;
FT_Face face = face_find_in_list(info);
if(1 || face == NULL) {
if(face_control.cnt == face_control.num - 1) {
LV_LOG_WARN("face full");
goto Fail;
}
face_info = lv_mem_alloc(sizeof(lv_face_info_t) + strlen(info->name) + 1);
if(face_info == NULL) {
goto Fail;
}
FT_Error error = FT_New_Face(library, info->name, 0, &face);
if(error) {
lv_mem_free(face_info);
LV_LOG_WARN("create face error(%d)", error);
goto Fail;
}
face_info->name = ((char*)face_info) + sizeof(lv_face_info_t);
strcpy(face_info->name, info->name);
face_info->cnt = 1;
face->generic.data = face_info;
face->generic.finalizer = face_generic_finalizer;
face_add_to_list(face);
} else {
#if LV_USE_FT_CACHE_MANAGER == 0
FT_Size size;
FT_Error error = FT_New_Size(face, &size);
if(error) {
goto Fail;
}
FT_Activate_Size(size);
FT_Reference_Face(face);
#if LV_FREETYPE_CACHE_SIZE >= 0
return lv_ft_font_init_cache(info);
#else
face_info = (lv_face_info_t*)face->generic.data;
face_info->cnt++;
return lv_ft_font_init_nocache(info);
#endif
}
FT_Error error = FT_Set_Char_Size(face, 0, info->weight * 64, 0, 0);
if(error) {
lv_mem_free(face_info);
LV_LOG_WARN("set char size error(%d)", error);
goto Fail;
}
FT_Set_Pixel_Sizes(face, 0, info->weight);
dsc->face = face;
dsc->size = face->size;
dsc->weight = info->weight;
dsc->style = info->style;
lv_font_t* font = dsc->font;
font->user_data = dsc;
font->get_glyph_dsc = get_glyph_dsc_cb;
font->get_glyph_bitmap = get_glyph_bitmap_cb;
font->line_height = ((dsc->face->size->metrics.ascender - dsc->face->size->metrics.descender ) >> 6);
font->base_line = -((dsc->face->size->metrics.descender ) >> 6);
font->subpx = LV_FONT_SUBPX_NONE;
font->underline_position = dsc->face->underline_position;
font->underline_thickness = dsc->face->underline_thickness;
font->dsc = NULL;
info->font = font;
return true;
Fail:
lv_mem_free(dsc->font);
lv_mem_free(dsc);
return false;
}
void lv_ft_font_destroy(lv_font_t* font)
{
if(font == NULL) {
return;
}
lv_font_fmt_ft_dsc_t* dsc = (lv_font_fmt_ft_dsc_t*)(font->user_data);
if(dsc) {
#if LV_USE_FT_CACHE_MANAGER == 0
FT_Done_Size(dsc->size);
FT_Done_Face(dsc->face);
#if LV_FREETYPE_CACHE_SIZE >= 0
lv_ft_font_destroy_cache(font);
#else
lv_face_info_t* face_info = (lv_face_info_t*)dsc->face->generic.data;
face_info->cnt--;
if(face_info->cnt == 0) {
FTC_Manager_RemoveFaceID(cache_manager, (FTC_FaceID)dsc->face);
}
lv_ft_font_destroy_nocache(font);
#endif
lv_mem_free(dsc->font);
lv_mem_free(dsc);
}
}
/**********************
* STATIC FUNCTIONS
**********************/
static void face_generic_finalizer(void* object)
#if LV_FREETYPE_CACHE_SIZE >= 0
static void face_generic_finalizer_cache(void* object)
{
FT_Face face = (FT_Face)object;
face_remove_from_list(face);
if(face->generic.data) {
lv_face_info_t* face_info = (lv_face_info_t*)face->generic.data;
lv_mem_free(face_info);
}
LV_LOG_INFO("face finalizer(%p)\n", face);
LV_LOG_WARN("face finalizer(%p)\n", face);
}
static FT_Face face_find_in_list(lv_ft_info_t* info)
{
lv_face_info_t* face_info;
FT_Face* pface = _lv_ll_get_head(&face_control.face_ll);
while(pface) {
face_info = (lv_face_info_t*)(*pface)->generic.data;
if(strcmp(face_info->name, info->name) == 0) {
return *pface;
}
pface = _lv_ll_get_next(&face_control.face_ll, pface);
}
return NULL;
}
static void face_add_to_list(FT_Face face)
{
FT_Face* pface;
pface = (FT_Face*)_lv_ll_ins_tail(&face_control.face_ll);
*pface = face;
face_control.cnt++;
}
static void face_remove_from_list(FT_Face face)
{
FT_Face* pface = _lv_ll_get_head(&face_control.face_ll);
while(pface) {
if(*pface == face) {
_lv_ll_remove(&face_control.face_ll, pface);
lv_mem_free(pface);
face_control.cnt--;
break;
}
pface = _lv_ll_get_next(&face_control.face_ll, pface);
}
}
#if LV_USE_FT_CACHE_MANAGER
static FT_Error font_face_requester(FTC_FaceID face_id, FT_Library library_is, FT_Pointer req_data, FT_Face* aface)
{
LV_UNUSED(library_is);
LV_UNUSED(req_data);
*aface = face_id;
lv_font_fmt_ft_dsc_t* dsc = (lv_font_fmt_ft_dsc_t*)face_id;
FT_Error error;
if(dsc->mem) {
error = FT_New_Memory_Face(library, dsc->mem, dsc->mem_size, 0, aface);
} else {
error = FT_New_Face(library, dsc->name, 0, aface);
}
if(error) {
LV_LOG_ERROR("FT_New_Face error:%d\n", error);
return error;
}
(*aface)->generic.finalizer = face_generic_finalizer_cache;
return FT_Err_Ok;
}
static bool get_bold_glyph(const lv_font_t* font, FT_Face face, FT_UInt glyph_index, lv_font_glyph_dsc_t* dsc_out)
{
if(FT_Load_Glyph(face, glyph_index, FT_LOAD_DEFAULT)) {
return false;
}
lv_font_fmt_ft_dsc_t* dsc = (lv_font_fmt_ft_dsc_t*)(font->dsc);
if(face->glyph->format == FT_GLYPH_FORMAT_OUTLINE) {
if(dsc->style & FT_FONT_STYLE_BOLD) {
int strength = 1 << 6;
FT_Outline_Embolden(&face->glyph->outline, strength);
}
}
if(FT_Render_Glyph(face->glyph, FT_RENDER_MODE_NORMAL)) {
return false;
}
dsc_out->adv_w = (face->glyph->metrics.horiAdvance >> 6);
dsc_out->box_h = face->glyph->bitmap.rows; /*Height of the bitmap in [px]*/
dsc_out->box_w = face->glyph->bitmap.width; /*Width of the bitmap in [px]*/
dsc_out->ofs_x = face->glyph->bitmap_left; /*X offset of the bitmap in [pf]*/
dsc_out->ofs_y =
face->glyph->bitmap_top - face->glyph->bitmap.rows; /*Y offset of the bitmap measured from the as line*/
dsc_out->bpp = 8; /*Bit per pixel: 1/2/4/8*/
return true;
}
static bool get_glyph_dsc_cb_cache(const lv_font_t* font, lv_font_glyph_dsc_t* dsc_out, uint32_t unicode_letter,
uint32_t unicode_letter_next)
{
@ -332,17 +289,54 @@ static bool get_glyph_dsc_cb_cache(const lv_font_t* font, lv_font_glyph_dsc_t* d
return true;
}
lv_font_fmt_ft_dsc_t* dsc = (lv_font_fmt_ft_dsc_t*)(font->user_data);
FT_Face face = dsc->face;
lv_font_fmt_ft_dsc_t* dsc = (lv_font_fmt_ft_dsc_t*)(font->dsc);
static FTC_ImageTypeRec desc_sbit_type;
desc_sbit_type.face_id = (FTC_FaceID)face;
desc_sbit_type.flags = FT_LOAD_RENDER | FT_LOAD_TARGET_NORMAL;
desc_sbit_type.height = dsc->weight;
desc_sbit_type.width = dsc->weight;
FT_UInt charmap_index = FT_Get_Charmap_Index(face->charmap);
FT_UInt glyph_index = FTC_CMapCache_Lookup(cmap_cache, (FTC_FaceID)face, charmap_index, unicode_letter);
FT_Error error = FTC_SBitCache_Lookup(sbit_cache, &desc_sbit_type, glyph_index, &sbit, NULL);
FTC_FaceID face_id = (FTC_FaceID)dsc;
FT_Size face_size;
struct FTC_ScalerRec_ scaler;
scaler.face_id = face_id;
scaler.width = dsc->height;
scaler.height = dsc->height;
scaler.pixel = 1;
if(FTC_Manager_LookupSize(cache_manager, &scaler, &face_size) != 0) {
return false;
}
FT_Face face = face_size->face;
FT_UInt charmap_index = FT_Get_Charmap_Index(face->charmap);
FT_UInt glyph_index = FTC_CMapCache_Lookup(cmap_cache, face_id, charmap_index, unicode_letter);
// dsc_out->is_placeholder = glyph_index == 0;
if(dsc->style & FT_FONT_STYLE_ITALIC) {
FT_Matrix italic_matrix;
italic_matrix.xx = 1 << 16;
italic_matrix.xy = 0x5800;
italic_matrix.yx = 0;
italic_matrix.yy = 1 << 16;
FT_Set_Transform(face, &italic_matrix, NULL);
}
if(dsc->style & FT_FONT_STYLE_BOLD) {
current_face = face;
if(!get_bold_glyph(font, face, glyph_index, dsc_out)) {
current_face = NULL;
return false;
}
goto end;
}
FTC_ImageTypeRec desc_type;
desc_type.face_id = face_id;
desc_type.flags = FT_LOAD_RENDER | FT_LOAD_TARGET_NORMAL;
desc_type.height = dsc->height;
desc_type.width = dsc->height;
#if LV_FREETYPE_SBIT_CACHE
FT_Error error = FTC_SBitCache_Lookup(sbit_cache, &desc_type, glyph_index, &sbit, NULL);
if(error) {
LV_LOG_ERROR("SBitCache_Lookup error");
return false;
}
dsc_out->adv_w = sbit->xadvance;
dsc_out->box_h = sbit->height; /*Height of the bitmap in [px]*/
@ -350,91 +344,57 @@ static bool get_glyph_dsc_cb_cache(const lv_font_t* font, lv_font_glyph_dsc_t* d
dsc_out->ofs_x = sbit->left; /*X offset of the bitmap in [pf]*/
dsc_out->ofs_y = sbit->top - sbit->height; /*Y offset of the bitmap measured from the as line*/
dsc_out->bpp = 8; /*Bit per pixel: 1/2/4/8*/
#else
FT_Error error = FTC_ImageCache_Lookup(image_cache, &desc_type, glyph_index, &image_glyph, NULL);
if(error) {
LV_LOG_ERROR("ImageCache_Lookup error");
return false;
}
if(image_glyph->format != FT_GLYPH_FORMAT_BITMAP) {
LV_LOG_ERROR("Glyph_To_Bitmap error");
return false;
}
FT_BitmapGlyph glyph_bitmap = (FT_BitmapGlyph)image_glyph;
dsc_out->adv_w = (glyph_bitmap->root.advance.x >> 16);
dsc_out->box_h = glyph_bitmap->bitmap.rows; /*Height of the bitmap in [px]*/
dsc_out->box_w = glyph_bitmap->bitmap.width; /*Width of the bitmap in [px]*/
dsc_out->ofs_x = glyph_bitmap->left; /*X offset of the bitmap in [pf]*/
dsc_out->ofs_y = glyph_bitmap->top - glyph_bitmap->bitmap.rows; /*Y offset of the bitmap measured from the as line*/
dsc_out->bpp = 8; /*Bit per pixel: 1/2/4/8*/
#endif
end:
if((dsc->style & FT_FONT_STYLE_ITALIC) && (unicode_letter_next == '\0')) {
dsc_out->adv_w = dsc_out->box_w + dsc_out->ofs_x;
}
return true;
}
static const uint8_t* get_glyph_bitmap_cb_cache(const lv_font_t* font, uint32_t unicode_letter)
{
LV_UNUSED(font);
LV_UNUSED(unicode_letter);
lv_font_fmt_ft_dsc_t* dsc = (lv_font_fmt_ft_dsc_t*)(font->dsc);
if(dsc->style & FT_FONT_STYLE_BOLD) {
if(current_face && current_face->glyph->format == FT_GLYPH_FORMAT_BITMAP) {
return (const uint8_t*)(current_face->glyph->bitmap.buffer);
}
return NULL;
}
#if LV_FREETYPE_SBIT_CACHE
return (const uint8_t*)sbit->buffer;
#else
FT_BitmapGlyph glyph_bitmap = (FT_BitmapGlyph)image_glyph;
return (const uint8_t*)glyph_bitmap->bitmap.buffer;
#endif
}
#else /* LV_USE_FT_CACHE_MANAGER */
// extern void berry_log_C(const char * berry_buf, ...);
static bool get_glyph_dsc_cb_nocache(const lv_font_t* font, lv_font_glyph_dsc_t* dsc_out, uint32_t unicode_letter,
uint32_t unicode_letter_next)
{
// berry_log_C(">> get_glyph_dsc_cb_nocache %i %i", unicode_letter, unicode_letter_next);
LV_UNUSED(unicode_letter_next);
if(unicode_letter < 0x20) {
dsc_out->adv_w = 0;
dsc_out->box_h = 0;
dsc_out->box_w = 0;
dsc_out->ofs_x = 0;
dsc_out->ofs_y = 0;
dsc_out->bpp = 0;
return true;
}
FT_Error error;
FT_Face face;
lv_font_fmt_ft_dsc_t* dsc = (lv_font_fmt_ft_dsc_t*)(font->user_data);
face = dsc->face;
FT_UInt glyph_index = FT_Get_Char_Index(face, unicode_letter);
if(face->size != dsc->size) {
// berry_log_C(">> FT_Activate_Size %i", dsc->size);
FT_Activate_Size(dsc->size);
}
error = FT_Load_Glyph(face, glyph_index, FT_LOAD_DEFAULT);
// berry_log_C(">> after FT_Load_Glyph error = %i", error);
if(error) {
return false;
}
error = FT_Render_Glyph(face->glyph, FT_RENDER_MODE_NORMAL);
// berry_log_C(">> after FT_Render_Glyph error = %i", error);
if(error) {
return false;
}
dsc_out->adv_w = (face->glyph->metrics.horiAdvance >> 6);
dsc_out->box_h = face->glyph->bitmap.rows; /*Height of the bitmap in [px]*/
dsc_out->box_w = face->glyph->bitmap.width; /*Width of the bitmap in [px]*/
dsc_out->ofs_x = face->glyph->bitmap_left; /*X offset of the bitmap in [pf]*/
dsc_out->ofs_y =
face->glyph->bitmap_top - face->glyph->bitmap.rows; /*Y offset of the bitmap measured from the as line*/
dsc_out->bpp = 8; /*Bit per pixel: 1/2/4/8*/
// berry_log_C("+++ adv_w %i, h %i, w %i, x %i, y %i", dsc_out->adv_w, dsc_out->box_h, dsc_out->box_w,
// dsc_out->ofs_x, dsc_out->ofs_y);
return true;
}
static const uint8_t* get_glyph_bitmap_cb_nocache(const lv_font_t* font, uint32_t unicode_letter)
{
LV_UNUSED(unicode_letter);
lv_font_fmt_ft_dsc_t* dsc = (lv_font_fmt_ft_dsc_t*)(font->user_data);
FT_Face face = dsc->face;
return (const uint8_t*)(face->glyph->bitmap.buffer);
}
#endif /* LV_USE_FT_CACHE_MANAGER */
static bool get_glyph_dsc_cb(const lv_font_t* font, lv_font_glyph_dsc_t* dsc_out, uint32_t unicode_letter,
uint32_t unicode_letter_next)
{
// #if LV_USE_FT_CACHE_MANAGER
// return get_glyph_dsc_cb_cache(font, dsc_out, unicode_letter, unicode_letter_next);
// #else
// return get_glyph_dsc_cb_nocache(font, dsc_out, unicode_letter, unicode_letter_next);
// #endif
static FT_glyph_dsc_request request;
static FT_glyph_dsc_response response;
@ -450,15 +410,6 @@ static bool get_glyph_dsc_cb(const lv_font_t* font, lv_font_glyph_dsc_t* dsc_out
}
}
static const uint8_t* get_glyph_bitmap_cb(const lv_font_t* font, uint32_t unicode_letter)
{
#if LV_USE_FT_CACHE_MANAGER
return get_glyph_bitmap_cb_cache(font, unicode_letter);
#else
return get_glyph_bitmap_cb_nocache(font, unicode_letter);
#endif
}
void FT_loop_task(void* pvParameters)
{
(void)pvParameters;
@ -480,4 +431,343 @@ void FT_loop_task(void* pvParameters)
}
}
#endif
static bool lv_ft_font_init_cache(lv_ft_info_t* info)
{
size_t need_size = sizeof(lv_font_fmt_ft_dsc_t) + sizeof(lv_font_t);
lv_font_fmt_ft_dsc_t* dsc = lv_mem_alloc(need_size);
if(dsc == NULL) return false;
_lv_memset_00(dsc, need_size);
dsc->font = (lv_font_t*)(((char*)dsc) + sizeof(lv_font_fmt_ft_dsc_t));
dsc->mem = info->mem;
dsc->mem_size = info->mem_size;
dsc->name = name_refer_save(info->name);
dsc->height = info->weight;
dsc->style = info->style;
/* use to get font info */
FT_Size face_size;
struct FTC_ScalerRec_ scaler;
scaler.face_id = (FTC_FaceID)dsc;
scaler.width = info->weight;
scaler.height = info->weight;
scaler.pixel = 1;
FT_Error error = FTC_Manager_LookupSize(cache_manager, &scaler, &face_size);
if(error) {
LV_LOG_ERROR("Failed to LookupSize");
goto Fail;
}
lv_font_t* font = dsc->font;
font->dsc = dsc;
// font->get_glyph_dsc = get_glyph_dsc_cb_cache;
font->get_glyph_dsc = get_glyph_dsc_cb;
font->get_glyph_bitmap = get_glyph_bitmap_cb_cache;
font->subpx = LV_FONT_SUBPX_NONE;
font->line_height = (face_size->face->size->metrics.height >> 6);
font->base_line = -(face_size->face->size->metrics.descender >> 6);
FT_Fixed scale = face_size->face->size->metrics.y_scale;
int8_t thickness = FT_MulFix(scale, face_size->face->underline_thickness) >> 6;
font->underline_position = FT_MulFix(scale, face_size->face->underline_position) >> 6;
font->underline_thickness = thickness < 1 ? 1 : thickness;
/* return to user */
info->font = font;
return true;
Fail:
lv_mem_free(dsc);
return false;
}
void lv_ft_font_destroy_cache(lv_font_t* font)
{
if(font == NULL) {
return;
}
lv_font_fmt_ft_dsc_t* dsc = (lv_font_fmt_ft_dsc_t*)(font->dsc);
if(dsc) {
LV_LOG_WARN("RemoveFaceID : %s %u", dsc->name, dsc->height);
FTC_Manager_RemoveFaceID(cache_manager, (FTC_FaceID)dsc);
name_refer_del(dsc->name);
lv_mem_free(dsc);
font->dsc = NULL;
}
}
#else /* LV_FREETYPE_CACHE_SIZE */
static FT_Face face_find_in_list(lv_ft_info_t* info)
{
lv_font_fmt_ft_dsc_t* dsc;
FT_Face* pface = _lv_ll_get_head(&face_control.face_ll);
while(pface) {
dsc = (lv_font_fmt_ft_dsc_t*)(*pface)->generic.data;
if(strcmp(dsc->name, info->name) == 0) {
return *pface;
}
pface = _lv_ll_get_next(&face_control.face_ll, pface);
}
return NULL;
}
static void face_add_to_list(FT_Face face)
{
FT_Face* pface;
pface = (FT_Face*)_lv_ll_ins_tail(&face_control.face_ll);
*pface = face;
}
static void face_remove_from_list(FT_Face face)
{
FT_Face* pface = _lv_ll_get_head(&face_control.face_ll);
while(pface) {
if(*pface == face) {
_lv_ll_remove(&face_control.face_ll, pface);
lv_mem_free(pface);
break;
}
pface = _lv_ll_get_next(&face_control.face_ll, pface);
}
}
static void face_generic_finalizer(void* object)
{
FT_Face face = (FT_Face)object;
face_remove_from_list(face);
LV_LOG_INFO("face finalizer(%p)\n", face);
}
static bool get_glyph_dsc_cb_nocache(const lv_font_t* font, lv_font_glyph_dsc_t* dsc_out, uint32_t unicode_letter,
uint32_t unicode_letter_next)
{
LV_UNUSED(unicode_letter_next);
if(unicode_letter < 0x20) {
dsc_out->adv_w = 0;
dsc_out->box_h = 0;
dsc_out->box_w = 0;
dsc_out->ofs_x = 0;
dsc_out->ofs_y = 0;
dsc_out->bpp = 0;
return true;
}
FT_Error error;
lv_font_fmt_ft_dsc_t* dsc = (lv_font_fmt_ft_dsc_t*)(font->dsc);
FT_Face face = dsc->size->face;
FT_UInt glyph_index = FT_Get_Char_Index(face, unicode_letter);
if(face->size != dsc->size) {
FT_Activate_Size(dsc->size);
}
// dsc_out->is_placeholder = glyph_index == 0;
error = FT_Load_Glyph(face, glyph_index, FT_LOAD_DEFAULT);
if(error) {
return false;
}
if(face->glyph->format == FT_GLYPH_FORMAT_OUTLINE) {
if(dsc->style & FT_FONT_STYLE_BOLD) {
int strength = 1 << 6;
FT_Outline_Embolden(&face->glyph->outline, strength);
}
if(dsc->style & FT_FONT_STYLE_ITALIC) {
FT_Matrix italic_matrix;
italic_matrix.xx = 1 << 16;
italic_matrix.xy = 0x5800;
italic_matrix.yx = 0;
italic_matrix.yy = 1 << 16;
FT_Outline_Transform(&face->glyph->outline, &italic_matrix);
}
}
error = FT_Render_Glyph(face->glyph, FT_RENDER_MODE_NORMAL);
if(error) {
return false;
}
dsc_out->adv_w = (face->glyph->metrics.horiAdvance >> 6);
dsc_out->box_h = face->glyph->bitmap.rows; /*Height of the bitmap in [px]*/
dsc_out->box_w = face->glyph->bitmap.width; /*Width of the bitmap in [px]*/
dsc_out->ofs_x = face->glyph->bitmap_left; /*X offset of the bitmap in [pf]*/
dsc_out->ofs_y =
face->glyph->bitmap_top - face->glyph->bitmap.rows; /*Y offset of the bitmap measured from the as line*/
dsc_out->bpp = 8; /*Bit per pixel: 1/2/4/8*/
if((dsc->style & FT_FONT_STYLE_ITALIC) && (unicode_letter_next == '\0')) {
dsc_out->adv_w = dsc_out->box_w + dsc_out->ofs_x;
}
return true;
}
static const uint8_t* get_glyph_bitmap_cb_nocache(const lv_font_t* font, uint32_t unicode_letter)
{
LV_UNUSED(unicode_letter);
lv_font_fmt_ft_dsc_t* dsc = (lv_font_fmt_ft_dsc_t*)(font->dsc);
FT_Face face = dsc->size->face;
return (const uint8_t*)(face->glyph->bitmap.buffer);
}
static bool lv_ft_font_init_nocache(lv_ft_info_t* info)
{
size_t need_size = sizeof(lv_font_fmt_ft_dsc_t) + sizeof(lv_font_t);
lv_font_fmt_ft_dsc_t* dsc = lv_mem_alloc(need_size);
if(dsc == NULL) return false;
_lv_memset_00(dsc, need_size);
dsc->font = (lv_font_t*)(((char*)dsc) + sizeof(lv_font_fmt_ft_dsc_t));
dsc->mem = info->mem;
dsc->mem_size = info->mem_size;
dsc->name = name_refer_save(info->name);
dsc->height = info->weight;
dsc->style = info->style;
FT_Face face = face_find_in_list(info);
if(face == NULL) {
FT_Error error;
if(dsc->mem) {
error = FT_New_Memory_Face(library, dsc->mem, (FT_Long)dsc->mem_size, 0, &face);
} else {
error = FT_New_Face(library, dsc->name, 0, &face);
}
if(error) {
LV_LOG_WARN("create face error(%d)", error);
goto Fail;
}
/* link face and face info */
face->generic.data = dsc;
face->generic.finalizer = face_generic_finalizer;
face_add_to_list(face);
} else {
FT_Size size;
FT_Error error = FT_New_Size(face, &size);
if(error) {
goto Fail;
}
FT_Activate_Size(size);
FT_Reference_Face(face);
}
FT_Set_Pixel_Sizes(face, 0, info->weight);
dsc->size = face->size;
lv_font_t* font = dsc->font;
font->dsc = dsc;
// font->get_glyph_dsc = get_glyph_dsc_cb_nocache;
font->get_glyph_dsc = get_glyph_dsc_cb;
font->get_glyph_bitmap = get_glyph_bitmap_cb_nocache;
font->line_height = (face->size->metrics.height >> 6);
font->base_line = -(face->size->metrics.descender >> 6);
font->subpx = LV_FONT_SUBPX_NONE;
FT_Fixed scale = face->size->metrics.y_scale;
int8_t thickness = FT_MulFix(scale, face->underline_thickness) >> 6;
font->underline_position = FT_MulFix(scale, face->underline_position) >> 6;
font->underline_thickness = thickness < 1 ? 1 : thickness;
info->font = font;
return true;
Fail:
lv_mem_free(dsc);
return false;
}
static void lv_ft_font_destroy_nocache(lv_font_t* font)
{
if(font == NULL) {
return;
}
lv_font_fmt_ft_dsc_t* dsc = (lv_font_fmt_ft_dsc_t*)(font->dsc);
if(dsc) {
FT_Face face = dsc->size->face;
FT_Done_Size(dsc->size);
FT_Done_Face(face);
name_refer_del(dsc->name);
lv_mem_free(dsc);
}
}
#endif /* LV_FREETYPE_CACHE_SIZE */
/**
* find name string in names list.name string cnt += 1 if find.
* @param name name string
* @return the string pointer of name.
*/
static const char* name_refer_find(const char* name)
{
name_refer_t* refer = _lv_ll_get_head(&names_ll);
while(refer) {
if(strcmp(refer->name, name) == 0) {
refer->cnt += 1;
return refer->name;
}
refer = _lv_ll_get_next(&names_ll, refer);
}
return NULL;
}
/**
* del name string from list.
*/
static void name_refer_del(const char* name)
{
name_refer_t* refer = _lv_ll_get_head(&names_ll);
while(refer) {
if(strcmp(refer->name, name) == 0) {
refer->cnt -= 1;
if(refer->cnt <= 0) {
LV_LOG_WARN("Release String : %s", refer->name);
_lv_ll_remove(&names_ll, refer);
lv_mem_free((void*)refer->name);
lv_mem_free(refer);
}
return;
}
refer = _lv_ll_get_next(&names_ll, refer);
}
LV_LOG_WARN("name_in_names_del error(not find:%p).", name);
}
/**
* save name string to list.
* @param name name string
* @return Saved string pointer
*/
static const char* name_refer_save(const char* name)
{
const char* pos = name_refer_find(name);
if(pos) {
return pos;
}
name_refer_t* refer = _lv_ll_ins_tail(&names_ll);
if(refer) {
uint32_t len = strlen(name) + 1;
refer->name = lv_mem_alloc(len);
if(refer->name) {
_lv_memcpy((void*)refer->name, name, len);
refer->cnt = 1;
return refer->name;
}
_lv_ll_remove(&names_ll, refer);
lv_mem_free(refer);
}
LV_LOG_WARN("save_name_to_names error(not memory).");
return "";
}
#endif /*LV_USE_FREETYPE*/

75
lib/lv_lib_freetype/lv_freetype.h
View File

@ -2,8 +2,8 @@
* @file lv_freetype.h
*
*/
#ifndef _LV_FONT_TTF_H
#define _LV_FONT_TTF_H
#ifndef LV_FREETYPE_H
#define LV_FREETYPE_H
#ifdef __cplusplus
extern "C" {
@ -12,59 +12,40 @@ extern "C" {
/*********************
* INCLUDES
*********************/
// #include "lvgl/lvgl.h" // TODO
#include "lvgl.h"
#include "ft2build.h"
#include FT_FREETYPE_H
#include FT_GLYPH_H
#include FT_CACHE_H
#include FT_SIZES_H
#if LV_USE_FREETYPE
/*********************
* DEFINES
*********************/
#ifndef LV_USE_FT_CACHE_MANAGER
#define LV_USE_FT_CACHE_MANAGER 0
#endif
#define LV_USE_FT_STACK_SIZE 24*1024 // FreeType consumes a large amount of stack
/**********************
* TYPEDEFS
**********************/
typedef struct {
uint16_t cnt;
char* name;
} lv_face_info_t;
typedef enum { FT_FONT_STYLE_NORMAL = 0, FT_FONT_STYLE_ITALIC = 1 << 0, FT_FONT_STYLE_BOLD = 1 << 1 } LV_FT_FONT_STYLE;
typedef struct {
uint16_t num;
uint16_t cnt;
lv_ll_t face_ll;
} lv_faces_control_t;
typedef enum {
FT_FONT_STYLE_NORMAL = 0,
FT_FONT_STYLE_ITALIC = 1 << 0,
FT_FONT_STYLE_BOLD = 1 << 1
} LV_FT_FONT_STYLE;
typedef struct {
const char* name; /* The name of the font file */
lv_font_t* font; /* point to lvgl font */
uint16_t weight; /* font size */
uint16_t style; /* font style */
typedef struct
{
const char* name; /* The name of the font file */
const void* mem; /* The pointer of the font file */
size_t mem_size; /* The size of the memory */
lv_font_t* font; /* point to lvgl font */
uint16_t weight; /* font size */
uint16_t style; /* font style */
} lv_ft_info_t;
typedef struct {
FT_Face face;
FT_Size size;
lv_font_t* font;
uint16_t style;
uint16_t weight;
} lv_font_fmt_freetype_dsc_t;
typedef lv_font_fmt_freetype_dsc_t lv_font_fmt_ft_dsc_t;
typedef struct
{
const void* mem;
const char* name;
size_t mem_size;
#if LV_FREETYPE_CACHE_SIZE < 0
FT_Size size;
#endif
lv_font_t* font;
uint16_t style;
uint16_t height;
} lv_font_fmt_ft_dsc_t;
/**********************
* GLOBAL PROTOTYPES
@ -78,7 +59,7 @@ typedef lv_font_fmt_freetype_dsc_t lv_font_fmt_ft_dsc_t;
* Note that this value does not account for managed FT_Face and FT_Size objects.
* @return true on success, otherwise false.
*/
bool lv_freetype_init(FT_UInt max_faces, FT_UInt max_sizes, FT_ULong max_bytes);
bool lv_freetype_init(uint16_t max_faces, uint16_t max_sizes, uint32_t max_bytes);
/**
* Destroy freetype library
@ -91,7 +72,7 @@ void lv_freetype_destroy(void);
* when success, lv_ft_info_t->font point to the font you created.
* @return true on success, otherwise false.
*/
bool lv_ft_font_init(lv_ft_info_t *info);
bool lv_ft_font_init(lv_ft_info_t* info);
/**
* Destroy a font that has been created.
@ -103,8 +84,10 @@ void lv_ft_font_destroy(lv_font_t* font);
* MACROS
**********************/
#endif /*LV_USE_FREETYPE*/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif
#endif /* LV_FREETYPE_H */

98
src/hasp/hasp_font.cpp
View File

@ -2,7 +2,14 @@
#include "hasplib.h"
#if HASP_USE_FREETYPE > 0
#ifndef LV_USE_FREETYPE
#define LV_USE_FREETYPE 1
#endif
#include "lv_freetype.h"
#include "ft2build.h" // for FT_FREETYPE_H macro
#include FT_FREETYPE_H // for FREETYPE_VERSION macros
#else
typedef struct
{
@ -22,8 +29,19 @@ typedef struct
{
char* payload; /* The payload with name and size */
lv_font_t* font; /* point to lvgl font */
uint8_t type;
} hasp_font_info_t;
bool font_dummy_glyph_dsc(const struct _lv_font_struct*, lv_font_glyph_dsc_t*, uint32_t letter, uint32_t letter_next)
{
return false;
}
const uint8_t* font_dummy_glyph_bitmap(const struct _lv_font_struct*, uint32_t)
{
return NULL;
}
void font_setup()
{
_lv_ll_init(&hasp_fonts_ll, sizeof(hasp_font_info_t));
@ -57,33 +75,56 @@ size_t font_split_payload(const char* payload)
return 0;
}
void font_clear_list()
static void font_release(void* node)
{
hasp_font_info_t* font_p = (hasp_font_info_t*)node;
if(font_p->font) {
if(font_p->type = 1) { // It's a FreeType font
#if(HASP_USE_FREETYPE > 0)
lv_ft_font_destroy(font_p->font);
#endif
} else if(font_p->type = 0) { // It's a binary font
hasp_font_free(font_p->font);
}
}
/* Free the allocated font_name last */
if(font_p->payload) {
LOG_DEBUG(TAG_FONT, F("Released font %s"), font_p->payload);
hasp_free(font_p->payload);
}
}
void font_clear_list(const char* payload)
{
if(_lv_ll_is_empty(&hasp_fonts_ll)) return;
void* node = _lv_ll_get_head(&hasp_fonts_ll);
while(node) {
hasp_font_info_t* font_p = (hasp_font_info_t*)node;
if(font_p->font) {
if(font_p->font->user_data) { // It's a FreeType font
#if(HASP_USE_FREETYPE > 0)
lv_ft_font_destroy(font_p->font);
#endif
} else { // It's a binary font
hasp_font_free(font_p->font);
}
}
/* Free the allocated font_name last */
if(font_p->payload) {
LOG_DEBUG(TAG_FONT, F("Released font %s"), font_p->payload);
hasp_free(font_p->payload);
}
while(void* node = _lv_ll_get_head(&hasp_fonts_ll)) {
font_release(node);
_lv_ll_remove(&hasp_fonts_ll, node);
lv_mem_free(node);
node = _lv_ll_get_head(&hasp_fonts_ll);
}
}
void font_clear_list2(const char* payload)
{
hasp_font_info_t* font_p = (hasp_font_info_t*)_lv_ll_get_head(&hasp_fonts_ll);
while(font_p) {
if(font_p->type == 1) {
lv_font_fmt_ft_dsc_t* dsc = (lv_font_fmt_ft_dsc_t*)font_p->font->dsc;
if(strcmp(dsc->name, payload) == 0) { // name and size
lv_ft_font_destroy(font_p->font);
*font_p->font = HASP_FONT_1;
font_p->type = 255;
}
}
// if(strcmp(font_p->payload, payload) == 0) { // name and size
// LOG_DEBUG(TAG_FONT, F("Payload %s found => line height = %d - base_line = %d"), payload,
// font_p->font->line_height, font_p->font->base_line);
// return font_p->font;
// }
font_p = (hasp_font_info_t*)_lv_ll_get_next(&hasp_fonts_ll, font_p);
}
}
@ -108,8 +149,9 @@ static lv_font_t* font_add_to_list(const char* payload)
// Try .bin file
snprintf_P(filename, sizeof(filename), PSTR("L:\\%s.bin"), payload);
lv_font_t* font = hasp_font_load(filename);
char* name_p = NULL;
lv_font_t* font = hasp_font_load(filename);
char* name_p = NULL;
uint8_t font_type = 0;
#if defined(ARDUINO_ARCH_ESP32) && (HASP_USE_FREETYPE > 0)
char* ext[] = {"ttf", "otf"};
@ -140,9 +182,12 @@ static lv_font_t* font_add_to_list(const char* payload)
lv_ft_info_t info;
info.name = filename;
info.weight = size;
info.mem = NULL;
info.style = FT_FONT_STYLE_NORMAL;
LOG_VERBOSE(TAG_FONT, F("Loading font %s size %d"), filename, size);
if(lv_ft_font_init(&info)) {
font = info.font;
font = info.font;
font_type = 1;
}
}
}
@ -150,7 +195,7 @@ static lv_font_t* font_add_to_list(const char* payload)
#endif
if(!font) return NULL;
LOG_VERBOSE(TAG_FONT, F("Loaded font %s size %d"), filename, font->line_height);
LOG_VERBOSE(TAG_FONT, F("Loaded font %s line_height %d"), filename, font->line_height);
/* alloc payload str */
size_t len = strlen(payload);
@ -164,6 +209,7 @@ static lv_font_t* font_add_to_list(const char* payload)
new_font_item->payload = name_p;
new_font_item->font = font;
new_font_item->type = font_type;
return font;
}

2
src/hasp/hasp_font.h
View File

@ -6,6 +6,6 @@
void font_setup();
lv_font_t* get_font(const char* payload);
void font_clear_list();
void font_clear_list(const char* payload);
#endif

3
user_setups/esp32/_esp32.ini
View File

@ -41,6 +41,9 @@ build_flags =
;-D CONFIG_LITTLEFS_FOR_IDF_3_2 ; obsolete in IDF 3.3
; -- FreeType build options ------------------------
-D HASP_USE_FREETYPE=1
-D LV_USE_FREETYPE=1
-D LV_FREETYPE_SBIT_CACHE=1 ; use small bitmap cache
-D LV_FREETYPE_CACHE_SIZE=1 ; cache freetype font sizes
-D LV_USE_FT_CACHE_MANAGER=1 ; crashes without cache
-D LVGL_FREETYPE_MAX_FACES=16 ; max number of FreeType faces in cache
-D LVGL_FREETYPE_MAX_SIZES=16 ; max number of sizes in cache

3
user_setups/esp32s2/_esp32s2.ini
View File

@ -48,6 +48,9 @@ build_flags =
;-D CONFIG_LITTLEFS_FOR_IDF_3_2 ; obsolete in IDF 3.3
; -- FreeType build options ------------------------
-D HASP_USE_FREETYPE=1
-D LV_USE_FREETYPE=1
-D LV_FREETYPE_SBIT_CACHE=1 ; use small bitmap cache
-D LV_FREETYPE_CACHE_SIZE=1 ; cache freetype font sizes
-D LV_USE_FT_CACHE_MANAGER=1 ; crashes without cache
-D LVGL_FREETYPE_MAX_FACES=8 ; max number of FreeType faces in cache
-D LVGL_FREETYPE_MAX_SIZES=8 ; max number of sizes in cache