Revision 207
maybe working
| graph.c | ||
|---|---|---|
| 275 | 275 |
memcpy(alp_buf + pos, &alpha, 1); |
| 276 | 276 |
return SUCCESS; |
| 277 | 277 |
} |
| 278 |
/* |
|
| 278 | 279 |
int (graph_set_pixel_alpha)(uint16_t x, uint16_t y, uint32_t color, uint8_t alpha){
|
| 279 | 280 |
if (x >= vbe_mem_info.XResolution || y >= vbe_mem_info.YResolution) {
|
| 280 | 281 |
//printf("%s: invalid pixel.\n", __func__);
|
| ... | ... | |
| 286 | 287 |
float a = 1.0-(alpha&0xFF)/(float)0xFF; |
| 287 | 288 |
uint8_t r = GET_RED(color)*a + GET_RED(color_)*(1.0-a); |
| 288 | 289 |
uint8_t g = GET_GRE(color)*a + GET_GRE(color_)*(1.0-a); |
| 289 |
uint8_t b = GET_BLU(color)*a + GET_BLU(color_)*(1.0-a); |
|
| 290 |
return graph_set_pixel(x,y,SET_RGB(r,g,b)); |
|
| 291 |
//return set_pixel(x,y,color); |
|
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uint8_t b = GET_BLU(color)*a + GET_BLU(color_)*(1.0-a); (void)(r*g*b); |
|
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//return graph_set_pixel(x,y,SET_RGB(r,g,b)); |
|
| 292 |
color = SET_RGB(r,g,b); |
|
| 293 |
//unsigned int pos = (x + y * W) * graph_get_bytes_pixel(); |
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memcpy(video_buf + pos, &color, graph_get_bytes_pixel()); |
|
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return SUCCESS; |
|
| 292 | 296 |
} |
| 293 |
|
|
| 297 |
*/ |
|
| 294 | 298 |
int (graph_clear_screen)(void){
|
| 295 | 299 |
//return graph_paint_screen(BLACK); |
| 296 | 300 |
memset(video_buf, 0, graph_get_vram_size()); |
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