diff options
| -rw-r--r-- | csrc/drawing.c | 143 |
1 files changed, 71 insertions, 72 deletions
diff --git a/csrc/drawing.c b/csrc/drawing.c index fc5bd8f..a4be5a1 100644 --- a/csrc/drawing.c +++ b/csrc/drawing.c @@ -62,115 +62,114 @@ void fcn_00455b3a(int a1, int a2, uint16_t *a3, struct graph_st *a4, int a5, int return ret; } -int fcn_455c52(uint32_t a0, uint32_t a1, uint16_t *a2, struct graph_st * a3, int a4, int a5, int a6) +/* put graph gtop on top of graph with pixels pix size width*height, + * gtop centered at (xpos, ypos) */ +int graph_overlay(uint32_t width, uint32_t height, uint16_t *pix, struct graph_st * gtop, int xpos, int ypos, int a6) { - a4 -= (int16_t)a3->f4; - a5 -= (int16_t)a3->f6; + /* get left top position */ + xpos -= gtop->x; + ypos -= gtop->y; + + int gtcrop_x, width_to_cpy, gtcrop_y, height_to_cpy; + if (a6 != 1) { - if (a4 >= a0 || - a4 + (uint16_t)a3->f0 <= 0 || - a5 >= a1 || - a5 + (uint16_t)a3->f2 <= 0) + if (xpos >= width || xpos + gtop->width <= 0 || + ypos >= height || ypos + gtop->height <= 0) return 1; - [ebp-4] = 0; - [ebp-8] = 0; - [ebp-12] = (uint16_t)a3->f0; - [ebp-16] = (uint16_t)a3->f2; - - if (a4 < 0) { - [ebp-4] -= a4; - [ebp-12] += a4; - a4 = 0; + if (xpos < 0) { + gtcrop_x = -xpos; + width_to_cpy = gtop->width + xpos; + xpos = 0; } else { - eax = [ebp-12] + a4 - a0; - if (eax > 0) { - [ebp-12] -= eax; + gtcrop_x = 0; + int t = gtop->width + xpos - width; + if (t > 0) { + width_to_cpy = width - xpos; + } else { + width_to_cpy = gtop->width; } } - if (a5 < 0) { - [ebp-8] -= a5; - [ebp-16] += a5; - a5 = 0; + if (ypos < 0) { + gtcrop_y = -ypos; + height_to_cpy = gtop->height + ypos; + ypos = 0; } else { - eax = [ebp-16] + a5 - a1; - if (eax > 0) { - [ebp-16] -= eax; + gtcrop_y = 0; + int t = gtop->height + ypos - height; + if (t > 0) { + height_to_cpy = height - ypos; + } else { + height_to_cpy = gtop->height; } } } else { - if (a4 >= dw_4861c0 - || a4 + (uint16_t)a3->f0 <= dw_4861b8 - || a5 >= dw_4861c4 - || a5 + (uint16_t)a3->f2 <= dw_4861bc) + if (xpos >= dw_4861c0 || xpos + (uint16_t)gtop->width <= dw_4861b8 + || ypos >= dw_4861c4 || ypos + (uint16_t)gtop->height <= dw_4861bc) return 1; - [ebp - 4] = 0; - [ebp - 8] = 0; - [ebp - 12] = (uint16_t)a3->f0; - [ebp - 16] = (uint16_t)a3->f2; - - if (a4 < dw_4861b8) { - eax = dw_4861b8 - a4; - a4 = dw_4861b8; - [ebp - 4] += eax; - [ebp - 12] -= eax; + if (xpos < dw_4861b8) { + eax = dw_4861b8 - xpos; + xpos = dw_4861b8; + gtcrop_x = eax; + width_to_cpy = gtop->width - eax; } else { - eax = [ebp - 12] + a4 - dw_4861c0; + gtcrop_x = 0; + eax = gtop->width + xpos - dw_4861c0; if (eax > 0) { - [ebp - 12] -= eax; + width_to_cpy = dw_4861c0 - xpos; + } else { + width_to_cpy = gtop->width; } } - if (a5 < dw_4861bc) { - eax = dw_4861bc - a5; - a5 = dw_4861bc; - [ebp - 8] += eax; - [ebp - 16] -= eax; + if (ypos < dw_4861bc) { + eax = dw_4861bc - ypos; + ypos = dw_4861bc; + gtcrop_y = eax; + height_to_cpy = gtop->height - eax; } else { - eax = [ebp - 16] + a5 - dw_4861c4; + gtcrop_y = 0; + eax = gtop->height + ypos - dw_4861c4; if (eax > 0) { - [ebp - 16] -= eax; + height_to_cpy = dw_4861c4 - ypos; + } else { + height_to_cpy = gtop->height; } } } - eax = (uint16_t)a3->f0 * [ebp-8] + [ebp-4]; - esi = &a3->f8[eax]; - [ebp - 4] = ((uint16_t)a3->f0 - [ebp - 12]) * 2; - [ebp - 8] = (a0 - [ebp-12]) * 2; - edi = (a5 * a0 + a4) * 2 + a2; - - edx = [ebp - 12]; - ebx = [ebp - 16]; - do { - ecx = edx; - do { - ax = [esi]; - (uint16_t*)esi ++; - if (ax != 0) { - *edi = ax; - } - (uint16_t*)edi ++; - } while (--ecx); + int crop_start = gtop->width * gtcrop_y + gtcrop_x; + uint16_t *src = >op->gdata[crop_start]; + int gt_width_skip = gtop->width - width_to_cpy; + int pix_width_skip = width - width_to_cpy; + uint16_t *dst = &pix[width * ypos + xpos]; + + for (int i = 0; i < height_to_cpy; i++) { + for (int j = 0; j < width_to_cpy; j++) { + if (*src != 0) + *dst = *src; + src++; + dst++; + } - esi += [ebp - 4]; - edi += [ebp - 8]; - } while (--ebx); + src += gt_width_skip; + dst += pix_width_skip; + } return 0; } void fcn_4562a5(struct graph_st * a0, struct graph_st * a1, int a2, int a3) { - fcn_455c52((uint16_t)a0->f0, (uint16_t)a0->f2, a0->f8, a1, a2, a3, 0); + graph_overlay(a0->width, a0->height, a0->gdata, a1, a2, a3, 0); } void fcn_456418(uint16_t *a0, struct graph_st *a1, int a2, int a3) { - fcn_455c52(640, 480, a0, a1, a2, a3, 0); + graph_overlay(640, 480, a0, a1, a2, a3, 0); } void fcn_417191(int a0) |