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improve bitmap, image loader and image_gen

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This commit is contained in:
xianjimli 2018-10-17 09:57:36 +08:00
parent 5a7a0c3fda
commit 4a860c041a
7 changed files with 145 additions and 106 deletions
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80
src/base/bitmap.c
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@ -61,45 +61,6 @@ ret_t bitmap_destroy(bitmap_t* bitmap) {
#include "base/pixel_pack_unpack.h"
ret_t bitmap_rgba_to_bgr565(bitmap_t* image, uint16_t* output) {
uint32_t i = 0;
uint16_t* d = output;
uint32_t nr = image->w * image->h;
uint32_t* s = (uint32_t*)(image->data);
return_value_if_fail(image->format == BITMAP_FMT_RGBA8888, RET_BAD_PARAMS);
for (i = 0; i < nr; i++, d++, s++) {
color_t c;
c.color = *s;
*d = rgb_to_bgr565(c.rgba.r, c.rgba.g, c.rgba.b);
}
return RET_OK;
}
ret_t bitmap_rgba_to_bgra(bitmap_t* image) {
int i = 0;
int nr = image->w * image->h;
uint8_t* data = (uint8_t*)(image->data);
/*default format is rgba, some sys need bgra*/
for (i = 0; i < nr; i++) {
uint8_t r = data[0];
uint8_t g = data[1];
uint8_t b = data[2];
uint8_t a = data[3];
data[0] = b;
data[1] = g;
data[2] = r;
data[3] = a;
data += 4;
}
image->format = BITMAP_FMT_BGRA8888;
return RET_OK;
}
uint32_t bitmap_get_bpp(bitmap_t* bmp) {
return_value_if_fail(bmp != NULL, 0);
@ -129,8 +90,8 @@ ret_t bitmap_alloc_data(bitmap_t* bitmap) {
size = bitmap_get_bpp(bitmap) * bitmap->w * bitmap->h;
size = TK_ROUND_TO(size, BITMAP_ALIGN_SIZE) + BITMAP_ALIGN_SIZE;
data = (uint8_t*)TKMEM_ALLOC(size);
data = (uint8_t*)TKMEM_ALLOC(size);
if (data != NULL) {
memset(data, 0x00, size);
bitmap->data_free_ptr = data;
@ -236,7 +197,8 @@ ret_t bitmap_get_pixel(bitmap_t* bitmap, uint32_t x, uint32_t y, rgba_t* rgba) {
return RET_NOT_IMPL;
}
ret_t bitmap_init_rgba8888(bitmap_t* b, uint32_t w, uint32_t h, uint8_t* data, uint32_t comp) {
ret_t bitmap_init_rgba8888(bitmap_t* b, uint32_t w, uint32_t h, const uint8_t* data,
uint32_t comp) {
uint32_t i = 0;
if (comp == 4) {
@ -244,7 +206,7 @@ ret_t bitmap_init_rgba8888(bitmap_t* b, uint32_t w, uint32_t h, uint8_t* data, u
memcpy((uint8_t*)(b->data), data, size);
} else {
uint32_t n = w * h;
uint8_t* s = data;
const uint8_t* s = data;
uint8_t* d = (uint8_t*)(b->data);
for (i = 0; i < n; i++) {
@ -258,10 +220,11 @@ ret_t bitmap_init_rgba8888(bitmap_t* b, uint32_t w, uint32_t h, uint8_t* data, u
return RET_OK;
}
ret_t bitmap_init_bgra8888(bitmap_t* b, uint32_t w, uint32_t h, uint8_t* data, uint32_t comp) {
ret_t bitmap_init_bgra8888(bitmap_t* b, uint32_t w, uint32_t h, const uint8_t* data,
uint32_t comp) {
uint32_t i = 0;
uint32_t n = w * h;
uint8_t* s = data;
const uint8_t* s = data;
uint8_t* d = (uint8_t*)(b->data);
/*bgra=rgba*/
@ -278,10 +241,10 @@ ret_t bitmap_init_bgra8888(bitmap_t* b, uint32_t w, uint32_t h, uint8_t* data, u
return RET_OK;
}
ret_t bitmap_init_bgr565(bitmap_t* b, uint32_t w, uint32_t h, uint8_t* data, uint32_t comp) {
ret_t bitmap_init_bgr565(bitmap_t* b, uint32_t w, uint32_t h, const uint8_t* data, uint32_t comp) {
uint32_t i = 0;
uint32_t n = w * h;
uint8_t* s = data;
const uint8_t* s = data;
uint16_t* d = (uint16_t*)(b->data);
for (i = 0; i < n; i++) {
@ -293,9 +256,28 @@ ret_t bitmap_init_bgr565(bitmap_t* b, uint32_t w, uint32_t h, uint8_t* data, uin
s += comp;
}
return RET_OK;
}
ret_t bitmap_init(bitmap_t* b, uint32_t w, uint32_t h, bitmap_format_t format, uint8_t* data,
bool_t rgba_data_is_opaque(const uint8_t* data, uint32_t w, uint32_t h, uint8_t comp) {
if (comp == 4) {
uint32_t i = 0;
uint32_t n = w * h;
const uint8_t* s = data;
for (i = 0; i < n; i++) {
if (s[3] != 0xff) {
return FALSE;
}
s += 4;
}
}
return TRUE;
}
ret_t bitmap_init(bitmap_t* b, uint32_t w, uint32_t h, bitmap_format_t format, const uint8_t* data,
uint32_t comp) {
return_value_if_fail(b != NULL && data != NULL && (comp == 3 || comp == 4), RET_BAD_PARAMS);
@ -307,7 +289,7 @@ ret_t bitmap_init(bitmap_t* b, uint32_t w, uint32_t h, bitmap_format_t format, u
b->flags = BITMAP_FLAG_IMMUTABLE;
return_value_if_fail(bitmap_alloc_data(b) == RET_OK, RET_OOM);
if (comp == 3) {
if (rgba_data_is_opaque(data, w, h, comp)) {
b->flags |= BITMAP_FLAG_OPAQUE;
}
@ -315,7 +297,7 @@ ret_t bitmap_init(bitmap_t* b, uint32_t w, uint32_t h, bitmap_format_t format, u
return bitmap_init_bgra8888(b, w, h, data, comp);
} else if (format == BITMAP_FMT_RGBA8888) {
return bitmap_init_rgba8888(b, w, h, data, comp);
} else if (comp == 3) {
} else if (format == BITMAP_FMT_BGR565) {
return bitmap_init_bgr565(b, w, h, data, comp);
} else {
return RET_NOT_IMPL;

66
src/base/bitmap.h
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@ -166,9 +166,13 @@ struct _bitmap_t {
/*data是按cache line对齐，而data_free_ptr是用于释放的指针*/
uint8_t* data_free_ptr;
/*destroy时是否需要释放data指向的内存*/
bool_t should_free_data;
/*destroy时是否需要释放bitmap本身的内存*/
bool_t should_free_handle;
/* 显示特定的数据，如OpenGL texture ID，picasso/agg中图片等。*/
/* 显示特定的数据，如OpenGL texture ID，agg/agge中图片等。*/
void* specific;
/*specific_destroy的上下文*/
void* specific_ctx;
@ -187,6 +191,55 @@ struct _bitmap_t {
*/
bitmap_t* bitmap_create(void);
/**
* @method bitmap_create_ex
* 创建图片对象。
* @annotation ["constructor", "scriptable"]
* @param {uint32_t} w 宽度。
* @param {uint32_t} h 高度。
* @param {bitmap_format_t} format 格式。
*
* @return {bitmap_t*} 返回bitmap对象。
*/
bitmap_t* bitmap_create_ex(uint32_t w, uint32_t h, bitmap_format_t format);
/**
* @method bitmap_get_bpp
* 获取图片一个像素占用的字节数。
* @annotation ["scriptable"]
*
* @return {uint32_t} 返回一个像素占用的字节数。
*/
uint32_t bitmap_get_bpp(bitmap_t* bitmap);
/**
* @method bitmap_get_pixel
* 获取图片指定像素的rgba颜色值(主要用于测试程序)。
* @param {bitmap_t*} bitmap bitmap对象。
* @param {uint32_t} x x坐标。
* @param {uint32_t} y y坐标。
* @param {rgba_t*} rgba 返回颜色值。
*
* @return {ret_t} 返回RET_OK表示成功，否则表示失败。
*/
ret_t bitmap_get_pixel(bitmap_t* bitmap, uint32_t x, uint32_t y, rgba_t* rgba);
/**
* @method bitmap_init
* 初始化图片。
* @param {bitmap_t*} bitmap bitmap对象。
* @param {uint32_t} w 宽度。
* @param {uint32_t} h 高度。
* @param {bitmap_format_t} format 格式。
* @param {const uint8_t*} data
* 数据。3通道时为RGB888格式，4通道时为RGBA888格式(内部拷贝该数据，不会引用，调用者自行释放)。
* @param {uint32_t} comp 颜色通道数(目前支持3(rgb)和4(rgba))。
*
* @return {ret_t} 返回RET_OK表示成功，否则表示失败。
*/
ret_t bitmap_init(bitmap_t* b, uint32_t w, uint32_t h, bitmap_format_t format, const uint8_t* data,
uint32_t comp);
/**
* @method bitmap_destroy
* 销毁图片。
@ -302,16 +355,9 @@ typedef enum _image_draw_type_t {
#define BITMAP_ALIGN_SIZE 32
#endif /*BITMAP_ALIGN_SIZE*/
uint32_t bitmap_get_bpp(bitmap_t* bitmap);
ret_t bitmap_rgba_to_bgra(bitmap_t* image);
ret_t bitmap_rgba_to_bgr565(bitmap_t* image, uint16_t* output);
bitmap_t* bitmap_create_ex(uint32_t w, uint32_t h, bitmap_format_t format);
/*private*/
ret_t bitmap_alloc_data(bitmap_t* bitmap);
ret_t bitmap_get_pixel(bitmap_t* bitmap, uint32_t x, uint32_t y, rgba_t* rgba);
ret_t bitmap_init(bitmap_t* b, uint32_t w, uint32_t h, bitmap_format_t format, uint8_t* data,
uint32_t comp);
bool_t rgba_data_is_opaque(const uint8_t* data, uint32_t w, uint32_t h, uint8_t comp);
END_C_DECLS

42
src/image_loader/image_loader_stb.c
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@ -20,43 +20,53 @@
*/
#define STB_IMAGE_IMPLEMENTATION
#include "base/mem.h"
#define STBI_FREE TKMEM_FREE
#define STBI_MALLOC TKMEM_ALLOC
#define STBI_REALLOC(p, s) TKMEM_REALLOC(char, p, s)
#include "base/mem.h"
#include "stb/stb_image.h"
#include "image_loader/image_loader_stb.h"
static ret_t image_loader_stb_load(image_loader_t* l, const uint8_t* buff, uint32_t buff_size,
bitmap_t* image) {
ret_t stb_load_image(const uint8_t* buff, uint32_t buff_size, bitmap_t* image, bool_t require_bgra,
bool_t enable_bgr565) {
int i = 0;
int w = 0;
int h = 0;
int n = 0;
int nr = 0;
ret_t ret = RET_FAIL;
uint8_t* data = stbi_load_from_memory(buff, buff_size, &w, &h, &n, 0);
return_value_if_fail(data != NULL, RET_FAIL);
if (n == 3) {
#ifdef WITH_BITMAP_BGR565
if (enable_bgr565 && rgba_data_is_opaque(data, w, h, n)) {
ret = bitmap_init(image, w, h, BITMAP_FMT_BGR565, data, n);
stbi_image_free((uint8_t*)(data));
return ret;
#endif /*WITH_BITMAP_BGR565*/
} else if (require_bgra) {
ret = bitmap_init(image, w, h, BITMAP_FMT_BGRA8888, data, n);
} else {
ret = bitmap_init(image, w, h, BITMAP_FMT_RGBA8888, data, n);
}
stbi_image_free((uint8_t*)(data));
return ret;
}
static ret_t image_loader_stb_load(image_loader_t* l, const uint8_t* buff, uint32_t buff_size,
bitmap_t* image) {
bool_t require_bgra = FALSE;
bool_t enable_bgr565 = FALSE;
return_value_if_fail(l != NULL && buff != NULL && image != NULL, RET_BAD_PARAMS);
#ifdef WITH_BITMAP_BGR565
enable_bgr565 = TRUE;
#endif /*WITH_BITMAP_BGR565*/
#ifdef WITH_BITMAP_BGRA
ret = bitmap_init(image, w, h, BITMAP_FMT_BGRA8888, data, n);
#else
ret = bitmap_init(image, w, h, BITMAP_FMT_RGBA8888, data, n);
require_bgra = TRUE;
#endif /*WITH_BITMAP_BGRA*/
stbi_image_free((uint8_t*)(data));
return ret;
return stb_load_image(buff, buff_size, image, require_bgra, enable_bgr565);
}
static const image_loader_t stb_loader = {.load = image_loader_stb_load};

4
src/image_loader/image_loader_stb.h Executable file → Normal file
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@ -28,6 +28,10 @@ BEGIN_C_DECLS
image_loader_t* image_loader_stb(void);
/*for tool image_gen only*/
ret_t stb_load_image(const uint8_t* buff, uint32_t buff_size, bitmap_t* image, bool_t require_bgra,
bool_t enable_bgr565);
END_C_DECLS
#endif /*TK_IMAGE_LOADER_STB_H*/

10
tools/image_gen/README.md
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@ -2,9 +2,13 @@
在嵌入式系统中，RAM比较少，虽然PNG/JPG等文件可以大幅度降低存储空间，但是需要解码到内存中，不太适合直接使用。AWTK提供了imagegen工具，将图片转换成位图数据，直接编译到代码中，放在flash中，不占用内存空间。
用法说明：
```
./bin/imagegen in_filename out_filename
./bin/imagegen in_filename out_filename bgra|bgr565
```
* in_filename png/jpg 文件
* out_filename 位图数据文件
* in\_filename png/jpg 文件的文件名。
* out\_filename 位图数据文件的文件名。
* bgra 表示输出BITMAP\_FMT\_BGRA8888格式的图片。
* bgr565 表示把不透明的图片转成BITMAP\_FMT\_BGR565格式的图片。

26
tools/image_gen/image_gen.c
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@ -20,6 +20,7 @@
*/
#include "base/mem.h"
#include "base/utils.h"
#include "common/utils.h"
#include "image_gen/image_gen.h"
#include "base/image_manager.h"
@ -40,14 +41,13 @@ ret_t image_gen(bitmap_t* image, const char* output_filename) {
return RET_OK;
}
#include "base/utils.h"
uint32_t image_gen_buff(bitmap_t* image, uint8_t* output_buff, uint32_t buff_size) {
size_t size = 0;
uint32_t bpp = bitmap_get_bpp(image);
bitmap_header_t* header = (bitmap_header_t*)output_buff;
return_value_if_fail(image != NULL && output_buff != NULL, 0);
size = sizeof(uint32_t) * image->w * image->h;
size = bpp * image->w * image->h;
return_value_if_fail((size + sizeof(bitmap_header_t)) < buff_size, RET_BAD_PARAMS);
header->w = image->w;
@ -55,25 +55,7 @@ uint32_t image_gen_buff(bitmap_t* image, uint8_t* output_buff, uint32_t buff_siz
header->flags = image->flags;
header->format = image->format;
if (image->flags & BITMAP_FLAG_OPAQUE) {
if (image->format == BITMAP_FMT_RGBA8888) {
if (bitmap_rgba_to_bgr565(image, (uint16_t*)(header->data)) == RET_OK) {
header->format = BITMAP_FMT_BGR565;
size = sizeof(uint16_t) * image->w * image->h;
} else {
assert(!"bitmap_rgba_to_bgr565 fail.");
}
} else if (image->format == BITMAP_FMT_BGR565) {
size = sizeof(uint16_t) * image->w * image->h;
memcpy(header->data, image->data, size);
} else if (image->format == BITMAP_FMT_BGRA8888) {
size = sizeof(uint32_t) * image->w * image->h;
memcpy(header->data, image->data, size);
}
} else {
size = sizeof(uint32_t) * image->w * image->h;
memcpy(header->data, image->data, size);
}
memcpy(header->data, image->data, size);
return size + sizeof(bitmap_header_t);
}

23
tools/image_gen/main.c
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@ -29,25 +29,36 @@ int main(int argc, char** argv) {
bitmap_t image;
uint32_t size = 0;
uint8_t* buff = NULL;
bool_t require_bgra = FALSE;
bool_t enable_bgr565 = FALSE;
const char* in_filename = NULL;
const char* out_filename = NULL;
image_loader_t* loader = NULL;
TKMEM_INIT(4 * 1024 * 1024);
if (argc != 3) {
printf("Usage: %s in_filename out_filename\n", argv[0]);
if (argc < 3) {
printf("Usage: %s in_filename out_filename (bgra|bgr565)\n", argv[0]);
return 0;
}
if (argc >= 4) {
const char* options = argv[3];
if (strstr(options, "bgra") != NULL) {
require_bgra = TRUE;
}
if (strstr(options, "bgr565") != NULL) {
enable_bgr565 = TRUE;
}
}
in_filename = argv[1];
out_filename = argv[2];
loader = image_loader_stb();
buff = (uint8_t*)read_file(in_filename, &size);
if (buff != NULL) {
if (image_loader_load(loader, buff, size, &image) == RET_OK) {
if (stb_load_image(buff, size, &image, require_bgra, enable_bgr565) == RET_OK) {
if (image_gen(&image, out_filename) == RET_OK) {
printf("done\n");
} else {