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Revert "lv_freetype patch #10"

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s-hadinger 2021-09-12 22:01:21 +02:00 committed by GitHub
parent 53c101dd04
commit fb7a9a8970
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 327 additions and 302 deletions
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580
lib/libesp32_lvgl/lv_lib_freetype/lv_freetype.c
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@ -6,12 +6,43 @@
/********************* /*********************
* INCLUDES * INCLUDES
*********************/ *********************/
#include "lv_freetype.h" #include "lv_freetype.h"
#include "ft2build.h" #include "freertos/FreeRTOS.h"
#include FT_FREETYPE_H #include "freertos/queue.h"
#include FT_GLYPH_H #include "freertos/task.h"
#include FT_CACHE_H
#include FT_SIZES_H #if CONFIG_FREERTOS_UNICORE
#define ARDUINO_RUNNING_CORE 0
#else
#define ARDUINO_RUNNING_CORE 1
#endif
/*
* FreeType requires up to 32KB of stack to run, which overflows the stack of 8KB.
*
* We delegate to a FreeRTOS sub-task with a bigger stack.
*
* Parameters are passed via a RequestQueue, and response back via ResponseQueue
*
* The function that uses this scheme is `get_glyph_dsc_cb()``
*
*/
QueueHandle_t FTRequestQueue;
QueueHandle_t FTResponseQueue;
TaskHandle_t FTTaskHandle;
void FT_loop_task(void *pvParameters);
typedef struct FT_glyph_dsc_request {
const lv_font_t * font;
lv_font_glyph_dsc_t * dsc_out;
uint32_t unicode_letter;
uint32_t unicode_letter_next;
} FT_glyph_dsc_request;
typedef bool FT_glyph_dsc_response;
/********************* /*********************
* DEFINES * DEFINES
@ -20,58 +51,38 @@
/********************** /**********************
* TYPEDEFS * TYPEDEFS
**********************/ **********************/
typedef struct {
char * name;
} lv_face_info_t;
typedef struct {
lv_ll_t face_ll;
} lv_faces_control_t;
typedef struct {
#if LV_USE_FT_CACHE_MANAGER
void * face_id;
#else
FT_Size size;
#endif
lv_font_t * font;
uint16_t style;
uint16_t height;
} lv_font_fmt_ft_dsc_t;
/********************** /**********************
* STATIC PROTOTYPES * STATIC PROTOTYPES
**********************/ **********************/
#if LV_USE_FT_CACHE_MANAGER static FT_Face face_find_in_list(lv_ft_info_t *info);
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);
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_add_to_list(FT_Face face);
static void face_remove_from_list(FT_Face face); static void face_remove_from_list(FT_Face face);
static void face_generic_finalizer(void * object);
static bool lv_ft_font_init_nocache(lv_ft_info_t * info); static void face_generic_finalizer(void* object);
static void lv_ft_font_destroy_nocache(lv_font_t * font); 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);
#endif #endif
/********************** /**********************
* STATIC VARIABLES * STATIC VARIABLES
**********************/ **********************/
static FT_Library library; static FT_Library library;
#if LV_USE_FT_CACHE_MANAGER #if LV_USE_FT_CACHE_MANAGER
static FTC_Manager cache_manager; static FTC_Manager cache_manager;
static FTC_CMapCache cmap_cache; static FTC_CMapCache cmap_cache;
static FTC_SBitCache sbit_cache; static FTC_SBitCache sbit_cache;
static FTC_SBit sbit; static FTC_SBit sbit;
#else
static lv_faces_control_t face_control;
#endif #endif
static lv_faces_control_t face_control;
/********************** /**********************
* MACROS * MACROS
**********************/ **********************/
@ -79,18 +90,22 @@ static FT_Library library;
/********************** /**********************
* GLOBAL FUNCTIONS * GLOBAL FUNCTIONS
**********************/ **********************/
bool lv_freetype_init(uint16_t max_faces, uint16_t max_sizes, uint32_t max_bytes) 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 *));
FT_Error error = FT_Init_FreeType(&library); FT_Error error = FT_Init_FreeType(&library);
if(error) { if (error) {
LV_LOG_ERROR("init freeType error(%d)", error); LV_LOG_ERROR("init freeType error(%d)", error);
return false; return false;
} }
#if LV_USE_FT_CACHE_MANAGER #if LV_USE_FT_CACHE_MANAGER
error = FTC_Manager_New(library, max_faces, max_sizes, error = FTC_Manager_New(library, max_faces, max_sizes,
max_bytes, font_face_requester, NULL, &cache_manager); max_bytes, font_face_requester, NULL, &cache_manager);
if(error) { if (error) {
FT_Done_FreeType(library); FT_Done_FreeType(library);
LV_LOG_ERROR("Failed to open cache manager"); LV_LOG_ERROR("Failed to open cache manager");
return false; return false;
@ -103,21 +118,27 @@ bool lv_freetype_init(uint16_t max_faces, uint16_t max_sizes, uint32_t max_bytes
} }
error = FTC_SBitCache_New(cache_manager, &sbit_cache); error = FTC_SBitCache_New(cache_manager, &sbit_cache);
if(error) { if(error){
LV_LOG_ERROR("Failed to open sbit cache"); LV_LOG_ERROR("Failed to open sbit cache");
goto Fail; goto Fail;
} }
return true; // initialize the queues to send request and receive response
FTRequestQueue = xQueueCreate(1, sizeof(FT_glyph_dsc_request));
FTResponseQueue = xQueueCreate(1, sizeof(FT_glyph_dsc_response));
xTaskCreatePinnedToCore(FT_loop_task, "FreeType_task", LV_USE_FT_STACK_SIZE, NULL, 1, &FTTaskHandle, ARDUINO_RUNNING_CORE);
if (FTRequestQueue && FTResponseQueue) {
return true;
}
Fail: Fail:
FTC_Manager_Done(cache_manager); FTC_Manager_Done(cache_manager);
FT_Done_FreeType(library); FT_Done_FreeType(library);
return false; return false;
#else #else
LV_UNUSED(max_faces);
LV_UNUSED(max_sizes); LV_UNUSED(max_sizes);
LV_UNUSED(max_bytes); LV_UNUSED(max_bytes);
_lv_ll_init(&face_control.face_ll, sizeof(FT_Face *));
return true; return true;
#endif/* LV_USE_FT_CACHE_MANAGER */ #endif/* LV_USE_FT_CACHE_MANAGER */
} }
@ -130,46 +151,168 @@ void lv_freetype_destroy(void)
FT_Done_FreeType(library); FT_Done_FreeType(library);
} }
bool lv_ft_font_init(lv_ft_info_t * info) bool lv_ft_font_init(lv_ft_info_t *info)
{ {
#if LV_USE_FT_CACHE_MANAGER lv_font_fmt_ft_dsc_t * dsc = lv_mem_alloc(sizeof(lv_font_fmt_ft_dsc_t));
return lv_ft_font_init_cache(info); 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 (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);
#else #else
return lv_ft_font_init_nocache(info); face_info = (lv_face_info_t *)face->generic.data;
face_info->cnt++;
#endif #endif
}
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.height >> 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) void lv_ft_font_destroy(lv_font_t* font)
{ {
#if LV_USE_FT_CACHE_MANAGER if (font == NULL) {
lv_ft_font_destroy_cache(font); 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);
#else #else
lv_ft_font_destroy_nocache(font); 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);
}
#endif #endif
lv_mem_free(dsc->font);
lv_mem_free(dsc);
}
} }
/********************** /**********************
* STATIC FUNCTIONS * STATIC FUNCTIONS
**********************/ **********************/
static void face_generic_finalizer(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);
}
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 #if LV_USE_FT_CACHE_MANAGER
static FT_Error font_face_requester(FTC_FaceID face_id, static FT_Error font_face_requester(FTC_FaceID face_id,
FT_Library library_is, FT_Pointer req_data, FT_Face * aface) FT_Library library_is,FT_Pointer req_data,FT_Face* aface)
{ {
LV_UNUSED(library_is); LV_UNUSED(library_is);
LV_UNUSED(req_data); LV_UNUSED(req_data);
*aface = face_id;
lv_face_info_t * info = (lv_face_info_t *)face_id;
FT_Error error = FT_New_Face(library, info->name, 0, aface);
if(error) {
LV_LOG_ERROR("FT_New_Face error:%d\n", error);
return error;
}
return FT_Err_Ok; return FT_Err_Ok;
} }
static bool get_glyph_dsc_cb_cache(const lv_font_t * font, 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) lv_font_glyph_dsc_t * dsc_out, uint32_t unicode_letter, uint32_t unicode_letter_next)
{ {
LV_UNUSED(unicode_letter_next); LV_UNUSED(unicode_letter_next);
if(unicode_letter < 0x20) { if(unicode_letter < 0x20) {
@ -182,23 +325,17 @@ static bool get_glyph_dsc_cb_cache(const lv_font_t * font,
return true; return true;
} }
lv_font_fmt_ft_dsc_t * dsc = (lv_font_fmt_ft_dsc_t *)(font->dsc); lv_font_fmt_ft_dsc_t * dsc = (lv_font_fmt_ft_dsc_t *)(font->user_data);
FT_Face face = dsc->face;
FT_Face face; static FTC_ImageTypeRec desc_sbit_type;
FTC_ImageTypeRec desc_sbit_type; desc_sbit_type.face_id = (FTC_FaceID)face;
FTC_FaceID face_id = (FTC_FaceID)dsc->face_id;
FTC_Manager_LookupFace(cache_manager, face_id, &face);
desc_sbit_type.face_id = face_id;
desc_sbit_type.flags = FT_LOAD_RENDER | FT_LOAD_TARGET_NORMAL; desc_sbit_type.flags = FT_LOAD_RENDER | FT_LOAD_TARGET_NORMAL;
desc_sbit_type.height = dsc->height; desc_sbit_type.height = dsc->weight;
desc_sbit_type.width = dsc->height; desc_sbit_type.width = dsc->weight;
FT_UInt charmap_index = FT_Get_Charmap_Index(face->charmap); 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); 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); FT_Error error = FTC_SBitCache_Lookup(sbit_cache, &desc_sbit_type, glyph_index, &sbit, NULL);
if(error) {
LV_LOG_ERROR("SBitCache_Lookup error");
}
dsc_out->adv_w = sbit->xadvance; dsc_out->adv_w = sbit->xadvance;
dsc_out->box_h = sbit->height; /*Height of the bitmap in [px]*/ dsc_out->box_h = sbit->height; /*Height of the bitmap in [px]*/
@ -217,129 +354,13 @@ static const uint8_t * get_glyph_bitmap_cb_cache(const lv_font_t * font, uint32_
return (const uint8_t *)sbit->buffer; return (const uint8_t *)sbit->buffer;
} }
static bool lv_ft_font_init_cache(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;
face_info = lv_mem_alloc(sizeof(lv_face_info_t) + strlen(info->name) + 1);
if(face_info == NULL) {
goto Fail;
}
face_info->name = ((char *)face_info) + sizeof(lv_face_info_t);
strcpy(face_info->name, info->name);
dsc->face_id = face_info;
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->face_id;
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_mem_free(face_info);
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_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);
font->underline_position = face_size->face->underline_position;
font->underline_thickness = face_size->face->underline_thickness;
/* return to user */
info->font = font;
return true;
Fail:
lv_mem_free(dsc->font);
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_mem_free(dsc->face_id);
lv_mem_free(dsc->font);
lv_mem_free(dsc);
}
}
#else/* LV_USE_FT_CACHE_MANAGER */ #else/* LV_USE_FT_CACHE_MANAGER */
// extern void berry_log_C(const char * berry_buf, ...);
static FT_Face face_find_in_list(lv_ft_info_t * info) 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_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;
}
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);
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);
}
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); LV_UNUSED(unicode_letter_next);
if(unicode_letter < 0x20) { if(unicode_letter < 0x20) {
dsc_out->adv_w = 0; dsc_out->adv_w = 0;
@ -352,22 +373,26 @@ static bool get_glyph_dsc_cb_nocache(const lv_font_t * font,
} }
FT_Error error; FT_Error error;
lv_font_fmt_ft_dsc_t * dsc = (lv_font_fmt_ft_dsc_t *)(font->dsc); FT_Face face;
FT_Face face = dsc->size->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); FT_UInt glyph_index = FT_Get_Char_Index( face, unicode_letter );
if(face->size != dsc->size) { if (face->size != dsc->size) {
// berry_log_C(">> FT_Activate_Size %i", dsc->size);
FT_Activate_Size(dsc->size); FT_Activate_Size(dsc->size);
} }
error = FT_Load_Glyph(face, glyph_index, FT_LOAD_DEFAULT); error = FT_Load_Glyph(face, glyph_index, FT_LOAD_DEFAULT );
if(error) { // berry_log_C(">> after FT_Load_Glyph error = %i", error);
if (error){
return false; return false;
} }
error = FT_Render_Glyph(face->glyph, FT_RENDER_MODE_NORMAL); error = FT_Render_Glyph( face->glyph, FT_RENDER_MODE_NORMAL);
if(error) { // berry_log_C(">> after FT_Render_Glyph error = %i", error);
if (error){
return false; return false;
} }
@ -375,101 +400,70 @@ static bool get_glyph_dsc_cb_nocache(const lv_font_t * font,
dsc_out->box_h = face->glyph->bitmap.rows; /*Height of the bitmap in [px]*/ 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->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_x = face->glyph->bitmap_left; /*X offset of the bitmap in [pf]*/
dsc_out->ofs_y = face->glyph->bitmap_top - dsc_out->ofs_y = face->glyph->bitmap_top - face->glyph->bitmap.rows; /*Y offset of the bitmap measured from the as line*/
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*/ 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; return true;
} }
static const uint8_t * get_glyph_bitmap_cb_nocache(const lv_font_t * font, uint32_t unicode_letter) static const uint8_t * get_glyph_bitmap_cb_nocache(const lv_font_t * font, uint32_t unicode_letter)
{ {
LV_UNUSED(unicode_letter); LV_UNUSED(unicode_letter);
lv_font_fmt_ft_dsc_t * dsc = (lv_font_fmt_ft_dsc_t *)(font->dsc); lv_font_fmt_ft_dsc_t * dsc = (lv_font_fmt_ft_dsc_t *)(font->user_data);
FT_Face face = dsc->size->face; FT_Face face = dsc->face;
return (const uint8_t *)(face->glyph->bitmap.buffer); return (const uint8_t *)(face->glyph->bitmap.buffer);
} }
static bool lv_ft_font_init_nocache(lv_ft_info_t * info) #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)
{ {
lv_font_fmt_ft_dsc_t * dsc = lv_mem_alloc(sizeof(lv_font_fmt_ft_dsc_t)); // #if LV_USE_FT_CACHE_MANAGER
if(dsc == NULL) return false; // 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;
dsc->font = lv_mem_alloc(sizeof(lv_font_t)); request.font = font;
if(dsc->font == NULL) { request.dsc_out = dsc_out;
lv_mem_free(dsc); request.unicode_letter = unicode_letter;
return false; request.unicode_letter_next = unicode_letter_next;
} xQueueSendToBack(FTRequestQueue, &request, portMAX_DELAY);
if (xQueueReceive(FTResponseQueue, &response, portMAX_DELAY)) {
lv_face_info_t * face_info = NULL; return response;
FT_Face face = face_find_in_list(info); } else {
if(face == NULL) { return false; // should never happen
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;
}
/* link face and face info */
face_info->name = ((char *)face_info) + sizeof(lv_face_info_t);
strcpy(face_info->name, info->name);
face->generic.data = face_info;
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;
dsc->height = info->weight;
dsc->style = info->style;
lv_font_t * font = dsc->font;
font->dsc = dsc;
font->get_glyph_dsc = get_glyph_dsc_cb_nocache;
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->underline_position = face->underline_position;
font->underline_thickness = face->underline_thickness;
font->subpx = LV_FONT_SUBPX_NONE;
info->font = font;
return true;
Fail:
lv_mem_free(dsc->font);
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);
lv_mem_free(dsc->font);
lv_mem_free(dsc);
} }
} }
#endif/* LV_USE_FT_CACHE_MANAGER */ 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;
while (1) {
FT_glyph_dsc_request request;
FT_glyph_dsc_response response;
if (xQueueReceive(FTRequestQueue, &request, portMAX_DELAY)) {
#if LV_USE_FT_CACHE_MANAGER
response = get_glyph_dsc_cb_cache(request.font, request.dsc_out, request.unicode_letter, request.unicode_letter_next);
#else
response = get_glyph_dsc_cb_nocache(request.font, request.dsc_out, request.unicode_letter, request.unicode_letter_next);
#endif
xQueueSendToBack(FTResponseQueue, &response, portMAX_DELAY); // send back response
}
}
}

49
lib/libesp32_lvgl/lv_lib_freetype/lv_freetype.h
View File

@ -2,8 +2,8 @@
* @file lv_freetype.h * @file lv_freetype.h
* *
*/ */
#ifndef LV_FONT_FREETYPE_H #ifndef _LV_FONT_TTF_H
#define LV_FONT_FREETYPE_H #define _LV_FONT_TTF_H
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
@ -12,16 +12,37 @@ extern "C" {
/********************* /*********************
* INCLUDES * INCLUDES
*********************/ *********************/
// #include "lvgl/lvgl.h" // TODO
#include "lvgl.h" #include "lvgl.h"
#include "ft2build.h"
#include FT_FREETYPE_H
#include FT_GLYPH_H
#include FT_CACHE_H
#include FT_SIZES_H
/********************* /*********************
* DEFINES * DEFINES
*********************/ *********************/
#define LV_USE_FT_CACHE_MANAGER 1 #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 * TYPEDEFS
**********************/ **********************/
typedef struct {
uint16_t cnt;
char* name;
} lv_face_info_t;
typedef struct {
uint16_t num;
uint16_t cnt;
lv_ll_t face_ll;
} lv_faces_control_t;
typedef enum { typedef enum {
FT_FONT_STYLE_NORMAL = 0, FT_FONT_STYLE_NORMAL = 0,
FT_FONT_STYLE_ITALIC = 1 << 0, FT_FONT_STYLE_ITALIC = 1 << 0,
@ -29,12 +50,22 @@ typedef enum {
} LV_FT_FONT_STYLE; } LV_FT_FONT_STYLE;
typedef struct { typedef struct {
const char * name; /* The name of the font file */ const char* name; /* The name of the font file */
lv_font_t * font; /* point to lvgl font */ lv_font_t* font; /* point to lvgl font */
uint16_t weight; /* font size */ uint16_t weight; /* font size */
uint16_t style; /* font style */ uint16_t style; /* font style */
} lv_ft_info_t; } 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;
/********************** /**********************
* GLOBAL PROTOTYPES * GLOBAL PROTOTYPES
**********************/ **********************/
@ -47,7 +78,7 @@ typedef struct {
* Note that this value does not account for managed FT_Face and FT_Size objects. * Note that this value does not account for managed FT_Face and FT_Size objects.
* @return true on success, otherwise false. * @return true on success, otherwise false.
*/ */
bool lv_freetype_init(uint16_t max_faces, uint16_t max_sizes, uint32_t max_bytes); bool lv_freetype_init(FT_UInt max_faces, FT_UInt max_sizes, FT_ULong max_bytes);
/** /**
* Destroy freetype library * Destroy freetype library
@ -60,13 +91,13 @@ void lv_freetype_destroy(void);
* when success, lv_ft_info_t->font point to the font you created. * when success, lv_ft_info_t->font point to the font you created.
* @return true on success, otherwise false. * @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. * Destroy a font that has been created.
* @param font pointer to font. * @param font pointer to font.
*/ */
void lv_ft_font_destroy(lv_font_t * font); void lv_ft_font_destroy(lv_font_t* font);
/********************** /**********************
* MACROS * MACROS
@ -76,4 +107,4 @@ void lv_ft_font_destroy(lv_font_t * font);
} /* extern "C" */ } /* extern "C" */
#endif #endif
#endif /* LV_FONT_FREETYPE_H */ #endif