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Updated sf2dlib, added a "thickness" argument to lines (warning: break some old lines), Added WIP render targets, Added arguments (main file and root path)

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You'll need to update some of your codes if you used lines with colors, or you'll have some ... Nice line effects.
This commit is contained in:
Firew0lf 2016-03-22 21:48:52 +01:00
parent 694159f444
commit 5107f0277c
12 changed files with 477 additions and 41 deletions
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31
libs/sf2dlib/libsf2d/source/sf2d_draw.c
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@ -2,15 +2,36 @@
#include "sf2d_private.h"
#include <math.h>
void sf2d_draw_line(int x0, int y0, int x1, int y1, u32 color)
#ifndef M_PI
#define M_PI (3.14159265358979323846)
#endif
void sf2d_draw_line(float x0, float y0, float x1, float y1, float width, u32 color)
{
sf2d_vertex_pos_col *vertices = sf2d_pool_memalign(4 * sizeof(sf2d_vertex_pos_col), 8);
if (!vertices) return;
vertices[0].position = (sf2d_vector_3f){(float)x0+1.0f, (float)y0+1.0f, SF2D_DEFAULT_DEPTH};
vertices[1].position = (sf2d_vector_3f){(float)x0-1.0f, (float)y0-1.0f, SF2D_DEFAULT_DEPTH};
vertices[2].position = (sf2d_vector_3f){(float)x1+1.0f, (float)y1+1.0f, SF2D_DEFAULT_DEPTH};
vertices[3].position = (sf2d_vector_3f){(float)x1-1.0f, (float)y1-1.0f, SF2D_DEFAULT_DEPTH};
float dx = x1 - x0;
float dy = y1 - y0;
float nx = -dy;
float ny = dx;
float len = sqrt(nx * nx + ny * ny);
if (len > 0 ){
nx /= len;
ny /= len;
}
nx *= width*0.5f;
ny *= width*0.5f;
vertices[0].position = (sf2d_vector_3f){x0+nx, y0+ny, SF2D_DEFAULT_DEPTH};
vertices[1].position = (sf2d_vector_3f){x0-nx, y0-ny, SF2D_DEFAULT_DEPTH};
vertices[2].position = (sf2d_vector_3f){x1+nx, y1+ny, SF2D_DEFAULT_DEPTH};
vertices[3].position = (sf2d_vector_3f){x1-nx, y1-ny, SF2D_DEFAULT_DEPTH};
vertices[0].color = color;
vertices[1].color = vertices[0].color;