// dvx_video.h — Layer 1: VESA VBE video backend for DV/X GUI
#ifndef DVX_VIDEO_H
#define DVX_VIDEO_H

#include "dvxTypes.h"

// Initialize VESA video mode and map LFB
// Returns 0 on success, -1 on failure (error message printed to stderr)
int32_t videoInit(DisplayT *d, int32_t requestedW, int32_t requestedH, int32_t preferredBpp);

// Shut down video — restore text mode, unmap LFB, free backbuffer
void videoShutdown(DisplayT *d);

// Pack an RGB color into the display's pixel format
// For 15/16/32-bit: returns packed pixel value
// For 8-bit: returns nearest palette index
uint32_t packColor(const DisplayT *d, uint8_t r, uint8_t g, uint8_t b);

// Set the clip rectangle on the display
void setClipRect(DisplayT *d, int32_t x, int32_t y, int32_t w, int32_t h);

// Reset clip rectangle to full display
void resetClipRect(DisplayT *d);

// Set VGA DAC palette (8-bit mode only)
void videoSetPalette(const uint8_t *pal, int32_t firstEntry, int32_t count);

#endif // DVX_VIDEO_H