diff options
Diffstat (limited to 'source/blender/draw/intern/draw_cache.c')
| -rw-r--r-- | source/blender/draw/intern/draw_cache.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/source/blender/draw/intern/draw_cache.c b/source/blender/draw/intern/draw_cache.c index 6b1a3356b51..8fdf1a2fce7 100644 --- a/source/blender/draw/intern/draw_cache.c +++ b/source/blender/draw/intern/draw_cache.c @@ -32,6 +32,8 @@ #include "DNA_modifier_types.h" #include "DNA_lattice_types.h" +#include "UI_resources.h" + #include "BLI_utildefines.h" #include "BLI_math.h" @@ -43,6 +45,7 @@ /* Batch's only (free'd as an array) */ static struct DRWShapeCache { Gwn_Batch *drw_single_vertice; + Gwn_Batch *drw_cursor; Gwn_Batch *drw_fullscreen_quad; Gwn_Batch *drw_quad; Gwn_Batch *drw_sphere; @@ -2709,3 +2712,91 @@ Gwn_Batch *DRW_cache_particles_get_prim(int type) return NULL; } + +/* 3D cursor */ +Gwn_Batch *DRW_cache_cursor_get(void) +{ + if (!SHC.drw_cursor) { + const float f5 = 0.25f; + const float f10 = 0.5f; + const float f20 = 1.0f; + + const int segments = 16; + const int vert_ct = segments + 8; + const int index_ct = vert_ct + 5; + + unsigned char red[3] = {255, 0, 0}; + unsigned char white[3] = {255, 255, 255}; + unsigned char crosshair_color[3]; + UI_GetThemeColor3ubv(TH_VIEW_OVERLAY, crosshair_color); + + static Gwn_VertFormat format = { 0 }; + static struct { uint pos, color; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + attr_id.color = GWN_vertformat_attr_add(&format, "color", GWN_COMP_U8, 3, GWN_FETCH_INT_TO_FLOAT_UNIT); + } + + Gwn_IndexBufBuilder elb; + GWN_indexbuf_init_ex(&elb, GWN_PRIM_LINE_STRIP, index_ct, vert_ct, true); + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, vert_ct); + + int v = 0; + for (int i = 0; i < segments; ++i) { + float angle = (float)(2 * M_PI) * ((float)i / (float)segments); + float x = f10 * cosf(angle); + float y = f10 * sinf(angle); + + if (i % 2 == 0) + GWN_vertbuf_attr_set(vbo, attr_id.color, v, red); + else + GWN_vertbuf_attr_set(vbo, attr_id.color, v, white); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, v, (const float[2]){x, y}); + GWN_indexbuf_add_generic_vert(&elb, v++); + } + GWN_indexbuf_add_generic_vert(&elb, 0); + GWN_indexbuf_add_primitive_restart(&elb); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, v, (const float[2]){-f20, 0}); + GWN_vertbuf_attr_set(vbo, attr_id.color, v, crosshair_color); + GWN_indexbuf_add_generic_vert(&elb, v++); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v, (const float[2]){-f5, 0}); + GWN_vertbuf_attr_set(vbo, attr_id.color, v, crosshair_color); + GWN_indexbuf_add_generic_vert(&elb, v++); + + GWN_indexbuf_add_primitive_restart(&elb); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, v, (const float[2]){+f5, 0}); + GWN_vertbuf_attr_set(vbo, attr_id.color, v, crosshair_color); + GWN_indexbuf_add_generic_vert(&elb, v++); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v, (const float[2]){+f20, 0}); + GWN_vertbuf_attr_set(vbo, attr_id.color, v, crosshair_color); + GWN_indexbuf_add_generic_vert(&elb, v++); + + GWN_indexbuf_add_primitive_restart(&elb); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, v, (const float[2]){0, -f20}); + GWN_vertbuf_attr_set(vbo, attr_id.color, v, crosshair_color); + GWN_indexbuf_add_generic_vert(&elb, v++); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v, (const float[2]){0, -f5}); + GWN_vertbuf_attr_set(vbo, attr_id.color, v, crosshair_color); + GWN_indexbuf_add_generic_vert(&elb, v++); + + GWN_indexbuf_add_primitive_restart(&elb); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, v, (const float[2]){0, +f5}); + GWN_vertbuf_attr_set(vbo, attr_id.color, v, crosshair_color); + GWN_indexbuf_add_generic_vert(&elb, v++); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v, (const float[2]){0, +f20}); + GWN_vertbuf_attr_set(vbo, attr_id.color, v, crosshair_color); + GWN_indexbuf_add_generic_vert(&elb, v++); + + Gwn_IndexBuf *ibo = GWN_indexbuf_build(&elb); + + SHC.drw_cursor = GWN_batch_create_ex(GWN_PRIM_LINE_STRIP, vbo, ibo, GWN_BATCH_OWNS_VBO | GWN_BATCH_OWNS_INDEX); + } + return SHC.drw_cursor; +}
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