From d89a123dfddf42f289b4c613c64ed8571c519cb0 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Tue, 17 Jul 2018 01:44:30 -0400 Subject: [PATCH] gallium/u_vbuf: split u_vbuf_get_minmax_index function (v2) This will be used by indirect multidraws. v2: clean up the function further, change return types to unsigned Reviewed-by: Eric Anholt (v1) --- src/gallium/auxiliary/util/u_vbuf.c | 101 ++++++++++++++++++------------------ 1 file changed, 51 insertions(+), 50 deletions(-) diff --git a/src/gallium/auxiliary/util/u_vbuf.c b/src/gallium/auxiliary/util/u_vbuf.c index 76a1d14..39aeb87 100644 --- a/src/gallium/auxiliary/util/u_vbuf.c +++ b/src/gallium/auxiliary/util/u_vbuf.c @@ -1022,97 +1022,97 @@ static boolean u_vbuf_mapping_vertex_buffer_blocks(const struct u_vbuf *mgr) mgr->nonzero_stride_vb_mask)) != 0; } -static void u_vbuf_get_minmax_index(struct pipe_context *pipe, - const struct pipe_draw_info *info, - int *out_min_index, int *out_max_index) +static void +u_vbuf_get_minmax_index_mapped(const struct pipe_draw_info *info, + const void *indices, unsigned *out_min_index, + unsigned *out_max_index) { - struct pipe_transfer *transfer = NULL; - const void *indices; - unsigned i; - - if (info->has_user_indices) { - indices = (uint8_t*)info->index.user + - info->start * info->index_size; - } else { - indices = pipe_buffer_map_range(pipe, info->index.resource, - info->start * info->index_size, - info->count * info->index_size, - PIPE_TRANSFER_READ, &transfer); - } + unsigned max = 0; + unsigned min = ~0u; switch (info->index_size) { case 4: { const unsigned *ui_indices = (const unsigned*)indices; - unsigned max_ui = 0; - unsigned min_ui = ~0U; if (info->primitive_restart) { - for (i = 0; i < info->count; i++) { + for (unsigned i = 0; i < info->count; i++) { if (ui_indices[i] != info->restart_index) { - if (ui_indices[i] > max_ui) max_ui = ui_indices[i]; - if (ui_indices[i] < min_ui) min_ui = ui_indices[i]; + if (ui_indices[i] > max) max = ui_indices[i]; + if (ui_indices[i] < min) min = ui_indices[i]; } } } else { - for (i = 0; i < info->count; i++) { - if (ui_indices[i] > max_ui) max_ui = ui_indices[i]; - if (ui_indices[i] < min_ui) min_ui = ui_indices[i]; + for (unsigned i = 0; i < info->count; i++) { + if (ui_indices[i] > max) max = ui_indices[i]; + if (ui_indices[i] < min) min = ui_indices[i]; } } - *out_min_index = min_ui; - *out_max_index = max_ui; break; } case 2: { const unsigned short *us_indices = (const unsigned short*)indices; - unsigned max_us = 0; - unsigned min_us = ~0U; if (info->primitive_restart) { - for (i = 0; i < info->count; i++) { + for (unsigned i = 0; i < info->count; i++) { if (us_indices[i] != info->restart_index) { - if (us_indices[i] > max_us) max_us = us_indices[i]; - if (us_indices[i] < min_us) min_us = us_indices[i]; + if (us_indices[i] > max) max = us_indices[i]; + if (us_indices[i] < min) min = us_indices[i]; } } } else { - for (i = 0; i < info->count; i++) { - if (us_indices[i] > max_us) max_us = us_indices[i]; - if (us_indices[i] < min_us) min_us = us_indices[i]; + for (unsigned i = 0; i < info->count; i++) { + if (us_indices[i] > max) max = us_indices[i]; + if (us_indices[i] < min) min = us_indices[i]; } } - *out_min_index = min_us; - *out_max_index = max_us; break; } case 1: { const unsigned char *ub_indices = (const unsigned char*)indices; - unsigned max_ub = 0; - unsigned min_ub = ~0U; if (info->primitive_restart) { - for (i = 0; i < info->count; i++) { + for (unsigned i = 0; i < info->count; i++) { if (ub_indices[i] != info->restart_index) { - if (ub_indices[i] > max_ub) max_ub = ub_indices[i]; - if (ub_indices[i] < min_ub) min_ub = ub_indices[i]; + if (ub_indices[i] > max) max = ub_indices[i]; + if (ub_indices[i] < min) min = ub_indices[i]; } } } else { - for (i = 0; i < info->count; i++) { - if (ub_indices[i] > max_ub) max_ub = ub_indices[i]; - if (ub_indices[i] < min_ub) min_ub = ub_indices[i]; + for (unsigned i = 0; i < info->count; i++) { + if (ub_indices[i] > max) max = ub_indices[i]; + if (ub_indices[i] < min) min = ub_indices[i]; } } - *out_min_index = min_ub; - *out_max_index = max_ub; break; } default: assert(0); - *out_min_index = 0; - *out_max_index = 0; } + *out_min_index = min; + *out_max_index = max; +} + +static void +u_vbuf_get_minmax_index(struct pipe_context *pipe, + const struct pipe_draw_info *info, + unsigned *out_min_index, unsigned *out_max_index) +{ + struct pipe_transfer *transfer = NULL; + const void *indices; + + if (info->has_user_indices) { + indices = (uint8_t*)info->index.user + + info->start * info->index_size; + } else { + indices = pipe_buffer_map_range(pipe, info->index.resource, + info->start * info->index_size, + info->count * info->index_size, + PIPE_TRANSFER_READ, &transfer); + } + + u_vbuf_get_minmax_index_mapped(info, indices, out_min_index, out_max_index); + if (transfer) { pipe_buffer_unmap(pipe, transfer); } @@ -1134,7 +1134,8 @@ static void u_vbuf_set_driver_vertex_buffers(struct u_vbuf *mgr) void u_vbuf_draw_vbo(struct u_vbuf *mgr, const struct pipe_draw_info *info) { struct pipe_context *pipe = mgr->pipe; - int start_vertex, min_index; + int start_vertex; + unsigned min_index; unsigned num_vertices; boolean unroll_indices = FALSE; const uint32_t used_vb_mask = mgr->ve->used_vb_mask; @@ -1191,7 +1192,7 @@ void u_vbuf_draw_vbo(struct u_vbuf *mgr, const struct pipe_draw_info *info) if (new_info.index_size) { /* See if anything needs to be done for per-vertex attribs. */ if (u_vbuf_need_minmax_index(mgr)) { - int max_index; + unsigned max_index; if (new_info.max_index != ~0u) { min_index = new_info.min_index; -- 2.7.4