76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
#include <devices/cursor.h>
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#include <devices/mouse.h>
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#include <graphics/draw.h>
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#include <graphics/context.h>
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#include <memory/heap.h>
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#include <common.h>
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// 经典箭头光标位图 (12x16)
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// 0=透明, 1=白色填充, 2=黑色轮廓
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static const SUINT8 g_cursor_bitmap[CURSOR_H][CURSOR_W] = {
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{2,0,0,0,0,0,0,0,0,0,0,0},
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{2,2,0,0,0,0,0,0,0,0,0,0},
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{2,1,2,0,0,0,0,0,0,0,0,0},
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{2,1,1,2,0,0,0,0,0,0,0,0},
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{2,1,1,1,2,0,0,0,0,0,0,0},
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{2,1,1,1,1,2,0,0,0,0,0,0},
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{2,1,1,1,1,1,2,0,0,0,0,0},
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{2,1,1,1,1,1,1,2,0,0,0,0},
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{2,1,1,1,1,1,1,1,2,0,0,0},
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{2,1,1,1,1,1,1,1,1,2,0,0},
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{2,1,1,1,1,1,2,2,2,2,2,0},
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{2,1,1,2,1,2,0,0,0,0,0,0},
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{2,1,2,0,0,2,0,0,0,0,0,0},
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{2,2,0,0,0,0,2,0,0,0,0,0},
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{2,0,0,0,0,0,2,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0,0,0},
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};
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static layer_t* g_cursor_layer = NULL;
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void cursor_init(void) {
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g_cursor_layer = layer_create("cursor", LAYER_TYPE_MOUSE, CURSOR_W, CURSOR_H);
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if (!g_cursor_layer) return;
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layer_set_z(g_cursor_layer, 9999);
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// 将位图写入图层缓冲区，Reserved 用作 alpha（0=透明, 255=不透明）
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EFI_GRAPHICS_OUTPUT_BLT_PIXEL* buf = g_cursor_layer->buffer;
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for (UINT32 y = 0; y < CURSOR_H; y++) {
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for (UINT32 x = 0; x < CURSOR_W; x++) {
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EFI_GRAPHICS_OUTPUT_BLT_PIXEL* dst = &buf[y * CURSOR_W + x];
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SUINT8 px = g_cursor_bitmap[y][x];
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if (px == 1) {
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dst->Blue = 255; dst->Green = 255; dst->Red = 255; dst->Reserved = 255;
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} else if (px == 2) {
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dst->Blue = 0; dst->Green = 0; dst->Red = 0; dst->Reserved = 255;
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} else {
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dst->Blue = 0; dst->Green = 0; dst->Red = 0; dst->Reserved = 0;
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}
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}
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}
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// 初始位置：屏幕中心
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layer_set_pos(g_cursor_layer,
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(SSINT32)(g_gfx.hr / 2),
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(SSINT32)(g_gfx.vr / 2));
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}
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void cursor_update(void) {
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if (!g_cursor_layer) return;
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SSINT32 cx = (SSINT32)(g_gfx.hr / 2) + mouse_get_x();
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SSINT32 cy = (SSINT32)(g_gfx.vr / 2) + mouse_get_y();
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if (cx < 0) cx = 0;
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if (cy < 0) cy = 0;
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if (cx + (SSINT32)CURSOR_W > (SSINT32)g_gfx.hr) cx = (SSINT32)g_gfx.hr - CURSOR_W;
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if (cy + (SSINT32)CURSOR_H > (SSINT32)g_gfx.vr) cy = (SSINT32)g_gfx.vr - CURSOR_H;
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layer_set_pos(g_cursor_layer, cx, cy);
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}
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layer_t* cursor_get_layer(void) {
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return g_cursor_layer;
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}
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