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Deshab-OS/CODE/desktop/textures.h
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/* textures.h — 裸 RGBA 纹理绘制(M2)
*
* 纹理由 gen_textures.py 生成(.rgba = 无头 RGBA 字节流,R,G,B,A),
* 运行时经 FAT32 流式读入固定地址,tex_draw_scaled 双线性缩放 + alpha 混合。
*/
#ifndef DESHAB_TEXTURES_H
#define DESHAB_TEXTURES_H
#include "../UTSM/include/utsm/deshab_ui.h"
typedef unsigned char tex_u8;
typedef unsigned int tex_u32;
typedef unsigned long long tex_u64;
typedef long long tex_i64;
/* 开始菜单 logo 缓存区(zhfont24 之后、WAPP 之前,1MB) */
#define SMLOGO_ADDR 0x8700000ULL
#define SMLOGO_MAX (1024u * 1024u)
#define SMLOGO_W 216
#define SMLOGO_H 210
/* 启动背景(boot 屏专用,读入 PE surface 暂存区,启动期独占) */
#define BOOTBG_W 889
#define BOOTBG_H 500
#define BOOTLOGO_W 157
#define BOOTLOGO_H 157
/* 双线性缩放绘制 RGBA 纹理(src-over alpha 混合)。
* dim: 0..256 亮度衰减(256 = 原亮度;boot 背景用 ~150 压暗保证文字对比)。 */
void tex_draw_scaled(du_context *ctx, const tex_u8 *rgba, int sw, int sh,
int x, int y, int w, int h, int dim);
#endif /* DESHAB_TEXTURES_H */