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DRWCache: Add a new regular Quad buffer.

This commit is contained in:
Clément Foucault 2017-09-30 18:54:28 +02:00
parent 18965905d0
commit 8249e1ce5e
2 changed files with 32 additions and 0 deletions
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31
source/blender/draw/intern/draw_cache.c
View File

@ -44,6 +44,7 @@
static struct DRWShapeCache {
Gwn_Batch *drw_single_vertice;
Gwn_Batch *drw_fullscreen_quad;
Gwn_Batch *drw_quad;
Gwn_Batch *drw_screenspace_circle;
Gwn_Batch *drw_plain_axes;
Gwn_Batch *drw_single_arrow;
@ -229,6 +230,7 @@ static Gwn_VertBuf *sphere_wire_vbo(const float rad)
}
/* Quads */
/* Use this one for rendering fullscreen passes. For 3D objects use DRW_cache_quad_get(). */
Gwn_Batch *DRW_cache_fullscreen_quad_get(void)
{
if (!SHC.drw_fullscreen_quad) {
@ -258,6 +260,35 @@ Gwn_Batch *DRW_cache_fullscreen_quad_get(void)
return SHC.drw_fullscreen_quad;
}
/* Just a regular quad with 4 vertices. */
Gwn_Batch *DRW_cache_quad_get(void)
{
if (!SHC.drw_quad) {
/* Use a triangle instead of a real quad */
float pos[4][2] = {{-1.0f, -1.0f}, { 1.0f, -1.0f}, {1.0f, 1.0f}, {-1.0f, 1.0f}};
float uvs[4][2] = {{ 0.0f, 0.0f}, { 1.0f, 0.0f}, {1.0f, 1.0f}, { 0.0f, 1.0f}};
/* Position Only 2D format */
static Gwn_VertFormat format = { 0 };
static struct { uint pos, uvs; } 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.uvs = GWN_vertformat_attr_add(&format, "uvs", GWN_COMP_F32, 2, GWN_FETCH_FLOAT);
}
Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format);
GWN_vertbuf_data_alloc(vbo, 4);
for (int i = 0; i < 4; ++i) {
GWN_vertbuf_attr_set(vbo, attr_id.pos, i, pos[i]);
GWN_vertbuf_attr_set(vbo, attr_id.uvs, i, uvs[i]);
}
SHC.drw_quad = GWN_batch_create_ex(GWN_PRIM_TRI_FAN, vbo, NULL, GWN_BATCH_OWNS_VBO);
}
return SHC.drw_quad;
}
/* Sphere */
Gwn_Batch *DRW_cache_sphere_get(void)
{

1
source/blender/draw/intern/draw_cache.h
View File

@ -35,6 +35,7 @@ void DRW_shape_cache_free(void);
/* Common Shapes */
struct Gwn_Batch *DRW_cache_fullscreen_quad_get(void);
struct Gwn_Batch *DRW_cache_quad_get(void);
struct Gwn_Batch *DRW_cache_sphere_get(void);
struct Gwn_Batch *DRW_cache_single_vert_get(void);
struct Gwn_Batch *DRW_cache_single_line_get(void);