diff options
Diffstat (limited to 'source/blender/gpu/intern/gpu_batch.c')
-rw-r--r-- | source/blender/gpu/intern/gpu_batch.c | 212 |
1 files changed, 1 insertions, 211 deletions
diff --git a/source/blender/gpu/intern/gpu_batch.c b/source/blender/gpu/intern/gpu_batch.c index 391a3812073..5bfd20e3c8b 100644 --- a/source/blender/gpu/intern/gpu_batch.c +++ b/source/blender/gpu/intern/gpu_batch.c @@ -37,8 +37,8 @@ #include "BLI_polyfill_2d.h" #include "BLI_sort_utils.h" - #include "GPU_batch.h" /* own include */ +#include "GPU_batch_presets.h" #include "gpu_shader_private.h" /* -------------------------------------------------------------------- */ @@ -53,216 +53,6 @@ void GWN_batch_program_set_builtin(Gwn_Batch *batch, GPUBuiltinShader shader_id) /** \} */ - - -/* -------------------------------------------------------------------- */ -/** \name Batch Creation - * \{ */ - -/** - * Creates triangles from a byte-array of polygons. - * - * See 'make_shape_2d_from_blend.py' utility to create data to pass to this function. - * - * \param polys_flat: Pairs of X, Y coordinates (repeating to signify closing the polygon). - * \param polys_flat_len: Length of the array (must be an even number). - * \param rect: Optional region to map the byte 0..255 coords to. When not set use -1..1. - */ -Gwn_Batch *GPU_batch_tris_from_poly_2d_encoded( - const uchar *polys_flat, uint polys_flat_len, const rctf *rect) -{ - const uchar (*polys)[2] = (const void *)polys_flat; - const uint polys_len = polys_flat_len / 2; - BLI_assert(polys_flat_len == polys_len * 2); - - /* Over alloc in both cases */ - float (*verts)[2] = MEM_mallocN(sizeof(*verts) * polys_len, __func__); - float (*verts_step)[2] = verts; - uint (*tris)[3] = MEM_mallocN(sizeof(*tris) * polys_len, __func__); - uint (*tris_step)[3] = tris; - - const float range_uchar[2] = { - (rect ? (rect->xmax - rect->xmin) : 2.0f) / 255.0f, - (rect ? (rect->ymax - rect->ymin) : 2.0f) / 255.0f, - }; - const float min_uchar[2] = { - (rect ? rect->xmin : -1.0f), - (rect ? rect->ymin : -1.0f), - }; - - uint i_poly = 0; - uint i_vert = 0; - while (i_poly != polys_len) { - for (uint j = 0; j < 2; j++) { - verts[i_vert][j] = min_uchar[j] + ((float)polys[i_poly][j] * range_uchar[j]); - } - i_vert++; - i_poly++; - if (polys[i_poly - 1][0] == polys[i_poly][0] && - polys[i_poly - 1][1] == polys[i_poly][1]) - { - const uint verts_step_len = (&verts[i_vert]) - verts_step; - BLI_assert(verts_step_len >= 3); - const uint tris_len = (verts_step_len - 2); - BLI_polyfill_calc(verts_step, verts_step_len, -1, tris_step); - /* offset indices */ - if (verts_step != verts) { - uint *t = tris_step[0]; - const uint offset = (verts_step - verts); - uint tot = tris_len * 3; - while (tot--) { - *t += offset; - t++; - } - BLI_assert(t == tris_step[tris_len]); - } - verts_step += verts_step_len; - tris_step += tris_len; - i_poly++; - /* ignore the duplicate point */ - } - } - - /* We have vertices and tris, make a batch from this. */ - static Gwn_VertFormat format = {0}; - static struct { uint pos; } attr_id; - if (format.attr_len == 0) { - attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); - } - - const uint verts_len = (verts_step - verts); - const uint tris_len = (tris_step - tris); - Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); - GWN_vertbuf_data_alloc(vbo, verts_len); - - Gwn_VertBufRaw pos_step; - GWN_vertbuf_attr_get_raw_data(vbo, attr_id.pos, &pos_step); - - for (uint i = 0; i < verts_len; i++) { - copy_v2_v2(GWN_vertbuf_raw_step(&pos_step), verts[i]); - } - - Gwn_IndexBufBuilder elb; - GWN_indexbuf_init(&elb, GWN_PRIM_TRIS, tris_len, verts_len); - for (uint i = 0; i < tris_len; i++) { - GWN_indexbuf_add_tri_verts(&elb, UNPACK3(tris[i])); - } - Gwn_IndexBuf *indexbuf = GWN_indexbuf_build(&elb); - - MEM_freeN(tris); - MEM_freeN(verts); - - return GWN_batch_create_ex( - GWN_PRIM_TRIS, vbo, - indexbuf, - GWN_BATCH_OWNS_VBO | GWN_BATCH_OWNS_INDEX); -} - -Gwn_Batch *GPU_batch_wire_from_poly_2d_encoded( - const uchar *polys_flat, uint polys_flat_len, const rctf *rect) -{ - const uchar (*polys)[2] = (const void *)polys_flat; - const uint polys_len = polys_flat_len / 2; - BLI_assert(polys_flat_len == polys_len * 2); - - /* Over alloc */ - /* Lines are pairs of (x, y) byte locations packed into an int32_t. */ - int32_t *lines = MEM_mallocN(sizeof(*lines) * polys_len, __func__); - int32_t *lines_step = lines; - - const float range_uchar[2] = { - (rect ? (rect->xmax - rect->xmin) : 2.0f) / 255.0f, - (rect ? (rect->ymax - rect->ymin) : 2.0f) / 255.0f, - }; - const float min_uchar[2] = { - (rect ? rect->xmin : -1.0f), - (rect ? rect->ymin : -1.0f), - }; - - uint i_poly_prev = 0; - uint i_poly = 0; - while (i_poly != polys_len) { - i_poly++; - if (polys[i_poly - 1][0] == polys[i_poly][0] && - polys[i_poly - 1][1] == polys[i_poly][1]) - { - const uchar (*polys_step)[2] = polys + i_poly_prev; - const uint polys_step_len = i_poly - i_poly_prev; - BLI_assert(polys_step_len >= 2); - for (uint i_prev = polys_step_len - 1, i = 0; i < polys_step_len; i_prev = i++) { - union { - uint8_t as_u8[4]; - uint16_t as_u16[2]; - uint32_t as_u32; - } data; - data.as_u16[0] = *((const uint16_t *)polys_step[i_prev]); - data.as_u16[1] = *((const uint16_t *)polys_step[i]); - if (data.as_u16[0] > data.as_u16[1]) { - SWAP(uint16_t, data.as_u16[0], data.as_u16[1]); - } - *lines_step = data.as_u32; - lines_step++; - } - i_poly++; - i_poly_prev = i_poly; - /* ignore the duplicate point */ - } - } - - uint lines_len = lines_step - lines; - - /* Hide Lines (we could make optional) */ - { - qsort(lines, lines_len, sizeof(int32_t), BLI_sortutil_cmp_int); - lines_step = lines; - for (uint i_prev = 0, i = 1; i < lines_len; i_prev = i++) { - if (lines[i] != lines[i_prev]) { - *lines_step++ = lines[i_prev]; - } - else { - i++; - } - } - lines_len = lines_step - lines; - } - - /* We have vertices and tris, make a batch from this. */ - static Gwn_VertFormat format = {0}; - static struct { uint pos; } attr_id; - if (format.attr_len == 0) { - attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); - } - - Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); - const uint vbo_len_capacity = lines_len * 2; - GWN_vertbuf_data_alloc(vbo, vbo_len_capacity); - - Gwn_VertBufRaw pos_step; - GWN_vertbuf_attr_get_raw_data(vbo, attr_id.pos, &pos_step); - - for (uint i = 0; i < lines_len; i++) { - union { - uint8_t as_u8_pair[2][2]; - uint32_t as_u32; - } data; - data.as_u32 = lines[i]; - for (uint k = 0; k < 2; k++) { - float *pos_v2 = GWN_vertbuf_raw_step(&pos_step); - for (uint j = 0; j < 2; j++) { - pos_v2[j] = min_uchar[j] + ((float)data.as_u8_pair[k][j] * range_uchar[j]); - } - } - } - BLI_assert(vbo_len_capacity == GWN_vertbuf_raw_used(&pos_step)); - MEM_freeN(lines); - return GWN_batch_create_ex( - GWN_PRIM_LINES, vbo, - NULL, - GWN_BATCH_OWNS_VBO); -} - -/** \} */ - /* -------------------------------------------------------------------- */ /** \name Init/Exit * \{ */ |