[Bf-blender-cvs] [d629f2a8a35] blender2.8: Cleanup: reuse camera frame arrays
Campbell Barton
noreply at git.blender.org
Mon Jan 22 01:17:38 CET 2018
Commit: d629f2a8a350fe0c130d4a1e3a610d4d1ed36e3c
Author: Campbell Barton
Date: Mon Jan 22 11:26:32 2018 +1100
Branches: blender2.8
https://developer.blender.org/rBd629f2a8a350fe0c130d4a1e3a610d4d1ed36e3c
Cleanup: reuse camera frame arrays
Use GWN_vertbuf_raw_step in a loop for less verbose vbo creation.
===================================================================
M source/blender/draw/intern/draw_cache.c
===================================================================
diff --git a/source/blender/draw/intern/draw_cache.c b/source/blender/draw/intern/draw_cache.c
index 6a922860d9d..0b5cedb7799 100644
--- a/source/blender/draw/intern/draw_cache.c
+++ b/source/blender/draw/intern/draw_cache.c
@@ -2036,66 +2036,83 @@ Gwn_Batch *DRW_cache_bone_arrows_get(void)
/** \name Camera
* \{ */
+/* We could make these more generic functions.
+ * although filling 1d lines is not common. */
+
+static const float camera_coords_frame_bounds[5] = {
+ 0.0f, /* center point */
+ 1.0f, /* + X + Y */
+ 2.0f, /* + X - Y */
+ 3.0f, /* - X - Y */
+ 4.0f, /* - X + Y */
+};
+
+static const float camera_coords_frame_tri[3] = {
+ 5.0f, /* tria + X */
+ 6.0f, /* tria - X */
+ 7.0f, /* tria + Y */
+};
+
+/** Draw a loop of lines. */
+static void camera_fill_lines_loop_fl_v1(
+ Gwn_VertBufRaw *pos_step,
+ const float *coords, const uint coords_len)
+{
+ for (uint i = 0, i_prev = coords_len - 1; i < coords_len; i_prev = i++) {
+ *((float *)GWN_vertbuf_raw_step(pos_step)) = coords[i_prev];
+ *((float *)GWN_vertbuf_raw_step(pos_step)) = coords[i];
+ }
+}
+
+/** Fan lines out from the first vertex. */
+static void camera_fill_lines_fan_fl_v1(
+ Gwn_VertBufRaw *pos_step,
+ const float *coords, const uint coords_len)
+{
+ for (uint i = 1; i < coords_len; i++) {
+ *((float *)GWN_vertbuf_raw_step(pos_step)) = coords[0];
+ *((float *)GWN_vertbuf_raw_step(pos_step)) = coords[i];
+ }
+}
+
+/** Simply fill the array. */
+static void camera_fill_array_fl_v1(
+ Gwn_VertBufRaw *pos_step,
+ const float *coords, const uint coords_len)
+{
+ for (uint i = 0; i < coords_len; i++) {
+ *((float *)GWN_vertbuf_raw_step(pos_step)) = coords[i];
+ }
+}
+
+
Gwn_Batch *DRW_cache_camera_get(void)
{
if (!SHC.drw_camera) {
- float v0 = 0.0f; /* Center point */
- float v1 = 1.0f; /* + X + Y */
- float v2 = 2.0f; /* + X - Y */
- float v3 = 3.0f; /* - X - Y */
- float v4 = 4.0f; /* - X + Y */
- float v5 = 5.0f; /* tria + X */
- float v6 = 6.0f; /* tria - X */
- float v7 = 7.0f; /* tria + Y */
- int v_idx = 0;
-
static Gwn_VertFormat format = { 0 };
static struct { uint pos; } attr_id;
if (format.attrib_ct == 0) {
- /* use x coordinate to identify the vertex
- * the vertex shader take care to place it
- * appropriatelly */
+ /* Use x coordinate to identify the vertex the vertex shader take care to place it appropriately. */
attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 1, GWN_FETCH_FLOAT);
}
/* Vertices */
Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format);
- GWN_vertbuf_data_alloc(vbo, 22);
-
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v0);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v1);
-
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v0);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v2);
-
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v0);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v3);
+ const int vbo_len_capacity = 22;
+ GWN_vertbuf_data_alloc(vbo, vbo_len_capacity);
+ Gwn_VertBufRaw pos_step;
+ GWN_vertbuf_attr_get_raw_data(vbo, attr_id.pos, &pos_step);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v0);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v4);
+ /* camera cone (from center to frame) */
+ camera_fill_lines_fan_fl_v1(&pos_step, camera_coords_frame_bounds, ARRAY_SIZE(camera_coords_frame_bounds));
- /* camera frame */
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v1);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v2);
+ /* camera frame (skip center) */
+ camera_fill_lines_loop_fl_v1(&pos_step, &camera_coords_frame_bounds[1], ARRAY_SIZE(camera_coords_frame_bounds) - 1);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v2);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v3);
+ /* camera triangle (above the frame) */
+ camera_fill_lines_loop_fl_v1(&pos_step, camera_coords_frame_tri, ARRAY_SIZE(camera_coords_frame_tri));
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v3);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v4);
-
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v4);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v1);
-
- /* tria */
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v5);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v6);
-
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v6);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v7);
-
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v7);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v5);
+ BLI_assert(vbo_len_capacity == GWN_vertbuf_raw_used(&pos_step));
SHC.drw_camera = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO);
}
@@ -2105,37 +2122,25 @@ Gwn_Batch *DRW_cache_camera_get(void)
Gwn_Batch *DRW_cache_camera_frame_get(void)
{
if (!SHC.drw_camera_frame) {
- float v1 = 1.0f; /* + X + Y */
- float v2 = 2.0f; /* + X - Y */
- float v3 = 3.0f; /* - X - Y */
- float v4 = 4.0f; /* - X + Y */
- int v_idx = 0;
static Gwn_VertFormat format = { 0 };
static struct { uint pos; } attr_id;
if (format.attrib_ct == 0) {
- /* use x coordinate to identify the vertex
- * the vertex shader take care to place it
- * appropriatelly */
+ /* Use x coordinate to identify the vertex the vertex shader take care to place it appropriately. */
attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 1, GWN_FETCH_FLOAT);
}
/* Vertices */
Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format);
- GWN_vertbuf_data_alloc(vbo, 8);
-
- /* camera frame */
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v1);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v2);
+ const int vbo_len_capacity = 8;
+ GWN_vertbuf_data_alloc(vbo, vbo_len_capacity);
+ Gwn_VertBufRaw pos_step;
+ GWN_vertbuf_attr_get_raw_data(vbo, attr_id.pos, &pos_step);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v2);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v3);
+ /* camera frame (skip center) */
+ camera_fill_lines_loop_fl_v1(&pos_step, &camera_coords_frame_bounds[1], ARRAY_SIZE(camera_coords_frame_bounds) - 1);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v3);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v4);
-
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v4);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v1);
+ BLI_assert(vbo_len_capacity == GWN_vertbuf_raw_used(&pos_step));
SHC.drw_camera_frame = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO);
}
@@ -2145,11 +2150,6 @@ Gwn_Batch *DRW_cache_camera_frame_get(void)
Gwn_Batch *DRW_cache_camera_tria_get(void)
{
if (!SHC.drw_camera_tria) {
- float v5 = 5.0f; /* tria + X */
- float v6 = 6.0f; /* tria - X */
- float v7 = 7.0f; /* tria + Y */
- int v_idx = 0;
-
static Gwn_VertFormat format = { 0 };
static struct { uint pos; } attr_id;
if (format.attrib_ct == 0) {
@@ -2161,12 +2161,15 @@ Gwn_Batch *DRW_cache_camera_tria_get(void)
/* Vertices */
Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format);
- GWN_vertbuf_data_alloc(vbo, 6);
+ const int vbo_len_capacity = 3;
+ GWN_vertbuf_data_alloc(vbo, vbo_len_capacity);
+ Gwn_VertBufRaw pos_step;
+ GWN_vertbuf_attr_get_raw_data(vbo, attr_id.pos, &pos_step);
+
+ /* camera triangle (above the frame) */
+ camera_fill_array_fl_v1(&pos_step, camera_coords_frame_tri, ARRAY_SIZE(camera_coords_frame_tri));
- /* tria */
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v5);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v6);
- GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, &v7);
+ BLI_assert(vbo_len_capacity == GWN_vertbuf_raw_used(&pos_step));
SHC.drw_camera_tria = GWN_batch_create_ex(GWN_PRIM_TRIS, vbo, NULL, GWN_BATCH_OWNS_VBO);
}
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