graphics.h

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#include <Uefi.h>
#include <UEFIStarter/graphics.h>


#define BYTES_PER_PIXEL sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL)

#define DIFFTEST_DEFAULT_BACKGROUND_UINT32 0x11223344


typedef struct
{
  INTN left;    
  INTN top;     
  INTN right;   
  INTN bottom;  
} bounding_box_t;

typedef struct
{
  bounding_box_t box;  
  INTN image_width;    
  INTN image_height;   
  image_t *before;     
  image_t *after;      
} graphics_difftest_t;



void init_graphics_difftest_ex(graphics_difftest_t *difftest, INTN width, INTN height, UINT32 bgcol);
void init_graphics_difftest(graphics_difftest_t *difftest, INTN width, INTN height);

void find_bounding_box_for_changes(graphics_difftest_t *difftest);
void assert_box_equals(bounding_box_t *box, INTN left, INTN top, INTN right, INTN bottom, CHAR16 *message);
void assert_differences_within_box(graphics_difftest_t *difftest, INTN min_width, INTN max_width, INTN min_height, INTN max_height, CHAR16 *message);

void reset_bounding_box(bounding_box_t *box);
void reset_graphics_difftest(graphics_difftest_t *difftest);

void destroy_graphics_difftest(graphics_difftest_t *difftest);