Revision 105
set pixel function
| lab5/errors.h | ||
|---|---|---|
| 13 | 13 |
INVALID_COMMAND, /* @brief Invalid Command issued */ |
| 14 | 14 |
INVALID_STATE, /* @brief State machine reached an invalid state */ |
| 15 | 15 |
BIOS_CALL_ERROR, /* @brief Error upon BIOS call */ |
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OUT_OF_RANGE, |
|
| 16 | 17 |
OTHER_ERROR /* @brief Unspecified error */ |
| 17 | 18 |
}; |
| 18 | 19 |
|
| lab5/graphics.c | ||
|---|---|---|
| 69 | 69 |
return vbe_mem_info.BitsPerPixel; |
| 70 | 70 |
} |
| 71 | 71 |
|
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uint16_t get_bytes_pixel(void) {
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return (vbe_mem_info.BitsPerPixel + 7) >> 3; |
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} |
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|
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| 72 | 76 |
int (map_vram)(void) {
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| 73 | 77 |
int r; |
| 74 | 78 |
unsigned int vram_base = get_phys_addr(); |
| ... | ... | |
| 88 | 92 |
return !lm_free(&mem_map); |
| 89 | 93 |
} |
| 90 | 94 |
|
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int (set_pixel)(uint16_t row, uint16_t col, uint32_t color) {
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if (row >= vbe_mem_info.XResolution || col >= vbe_mem_info.YResolution) {
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printf("%s: invalid pixel.\n", __func__);
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return OUT_OF_RANGE; |
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} |
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unsigned int pos = (row + col * vbe_mem_info.XResolution) * get_bytes_pixel(); |
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memcpy((void*)(video_mem + pos), &color, get_bytes_pixel()); |
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return SUCCESS; |
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} |
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| 91 | 105 |
int (set_graphics_mode)(uint16_t mode) {
|
| 92 | 106 |
struct reg86 reg_86; |
| 93 | 107 |
|
| lab5/graphics.h | ||
|---|---|---|
| 20 | 20 |
|
| 21 | 21 |
uint16_t get_bits_pixel(void); |
| 22 | 22 |
|
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uint16_t get_bytes_pixel(void); |
|
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|
|
| 23 | 25 |
int (map_vram)(void); |
| 24 | 26 |
|
| 25 | 27 |
int (free_memory)(void); |
| 26 | 28 |
|
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int (set_pixel)(uint16_t row, uint16_t col, uint32_t color); |
|
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|
|
| 27 | 31 |
/** |
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* @brief |
| 29 | 33 |
* @param mode |
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