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Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_vbuf_mgr.c')
-rw-r--r--mesalib/src/gallium/auxiliary/util/u_vbuf_mgr.c1296
1 files changed, 648 insertions, 648 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_vbuf_mgr.c b/mesalib/src/gallium/auxiliary/util/u_vbuf_mgr.c
index da250cba9..d9b39e528 100644
--- a/mesalib/src/gallium/auxiliary/util/u_vbuf_mgr.c
+++ b/mesalib/src/gallium/auxiliary/util/u_vbuf_mgr.c
@@ -1,648 +1,648 @@
-/**************************************************************************
- *
- * Copyright 2011 Marek Olšák <maraeo@gmail.com>
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include "util/u_vbuf_mgr.h"
-
-#include "util/u_format.h"
-#include "util/u_inlines.h"
-#include "util/u_memory.h"
-#include "util/u_upload_mgr.h"
-#include "translate/translate.h"
-#include "translate/translate_cache.h"
-
-struct u_vbuf_mgr_elements {
- unsigned count;
- struct pipe_vertex_element ve[PIPE_MAX_ATTRIBS];
-
- unsigned src_format_size[PIPE_MAX_ATTRIBS];
-
- /* If (velem[i].src_format != native_format[i]), the vertex buffer
- * referenced by the vertex element cannot be used for rendering and
- * its vertex data must be translated to native_format[i]. */
- enum pipe_format native_format[PIPE_MAX_ATTRIBS];
- unsigned native_format_size[PIPE_MAX_ATTRIBS];
-
- /* This might mean two things:
- * - src_format != native_format, as discussed above.
- * - src_offset % 4 != 0 (if the caps don't allow such an offset). */
- boolean incompatible_layout;
-};
-
-struct u_vbuf_mgr_priv {
- struct u_vbuf_mgr b;
- struct pipe_context *pipe;
-
- struct translate_cache *translate_cache;
- unsigned translate_vb_slot;
-
- struct u_vbuf_mgr_elements *ve;
- void *saved_ve, *fallback_ve;
- boolean ve_binding_lock;
-
- unsigned saved_buffer_offset[PIPE_MAX_ATTRIBS];
-
- boolean any_user_vbs;
- boolean incompatible_vb_layout;
-};
-
-static void u_vbuf_mgr_init_format_caps(struct u_vbuf_mgr_priv *mgr)
-{
- struct pipe_screen *screen = mgr->pipe->screen;
-
- mgr->b.caps.format_fixed32 =
- screen->is_format_supported(screen, PIPE_FORMAT_R32_FIXED, PIPE_BUFFER,
- 0, PIPE_BIND_VERTEX_BUFFER);
-
- mgr->b.caps.format_float16 =
- screen->is_format_supported(screen, PIPE_FORMAT_R16_FLOAT, PIPE_BUFFER,
- 0, PIPE_BIND_VERTEX_BUFFER);
-
- mgr->b.caps.format_float64 =
- screen->is_format_supported(screen, PIPE_FORMAT_R64_FLOAT, PIPE_BUFFER,
- 0, PIPE_BIND_VERTEX_BUFFER);
-
- mgr->b.caps.format_norm32 =
- screen->is_format_supported(screen, PIPE_FORMAT_R32_UNORM, PIPE_BUFFER,
- 0, PIPE_BIND_VERTEX_BUFFER) &&
- screen->is_format_supported(screen, PIPE_FORMAT_R32_SNORM, PIPE_BUFFER,
- 0, PIPE_BIND_VERTEX_BUFFER);
-
- mgr->b.caps.format_scaled32 =
- screen->is_format_supported(screen, PIPE_FORMAT_R32_USCALED, PIPE_BUFFER,
- 0, PIPE_BIND_VERTEX_BUFFER) &&
- screen->is_format_supported(screen, PIPE_FORMAT_R32_SSCALED, PIPE_BUFFER,
- 0, PIPE_BIND_VERTEX_BUFFER);
-}
-
-struct u_vbuf_mgr *
-u_vbuf_mgr_create(struct pipe_context *pipe,
- unsigned upload_buffer_size,
- unsigned upload_buffer_alignment,
- unsigned upload_buffer_bind,
- enum u_fetch_alignment fetch_alignment)
-{
- struct u_vbuf_mgr_priv *mgr = CALLOC_STRUCT(u_vbuf_mgr_priv);
-
- mgr->pipe = pipe;
- mgr->translate_cache = translate_cache_create();
-
- mgr->b.uploader = u_upload_create(pipe, upload_buffer_size,
- upload_buffer_alignment,
- upload_buffer_bind);
-
- mgr->b.caps.fetch_dword_unaligned =
- fetch_alignment == U_VERTEX_FETCH_BYTE_ALIGNED;
-
- u_vbuf_mgr_init_format_caps(mgr);
-
- return &mgr->b;
-}
-
-void u_vbuf_mgr_destroy(struct u_vbuf_mgr *mgrb)
-{
- struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb;
- unsigned i;
-
- for (i = 0; i < mgr->b.nr_real_vertex_buffers; i++) {
- pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, NULL);
- pipe_resource_reference(&mgr->b.real_vertex_buffer[i], NULL);
- }
-
- translate_cache_destroy(mgr->translate_cache);
- u_upload_destroy(mgr->b.uploader);
- FREE(mgr);
-}
-
-
-static enum u_vbuf_return_flags
-u_vbuf_translate_begin(struct u_vbuf_mgr_priv *mgr,
- int min_index, int max_index)
-{
- struct translate_key key;
- struct translate_element *te;
- unsigned tr_elem_index[PIPE_MAX_ATTRIBS];
- struct translate *tr;
- boolean vb_translated[PIPE_MAX_ATTRIBS] = {0};
- uint8_t *vb_map[PIPE_MAX_ATTRIBS] = {0}, *out_map;
- struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS] = {0};
- struct pipe_resource *out_buffer = NULL;
- unsigned i, num_verts, out_offset;
- struct pipe_vertex_element new_velems[PIPE_MAX_ATTRIBS];
- boolean upload_flushed = FALSE;
-
- memset(&key, 0, sizeof(key));
- memset(tr_elem_index, 0xff, sizeof(tr_elem_index));
-
- /* Initialize the translate key, i.e. the recipe how vertices should be
- * translated. */
- memset(&key, 0, sizeof key);
- for (i = 0; i < mgr->ve->count; i++) {
- struct pipe_vertex_buffer *vb =
- &mgr->b.vertex_buffer[mgr->ve->ve[i].vertex_buffer_index];
- enum pipe_format output_format = mgr->ve->native_format[i];
- unsigned output_format_size = mgr->ve->native_format_size[i];
-
- /* Check for support. */
- if (mgr->ve->ve[i].src_format == mgr->ve->native_format[i] &&
- (mgr->b.caps.fetch_dword_unaligned ||
- (vb->buffer_offset % 4 == 0 &&
- vb->stride % 4 == 0 &&
- mgr->ve->ve[i].src_offset % 4 == 0))) {
- continue;
- }
-
- /* Workaround for translate: output floats instead of halfs. */
- switch (output_format) {
- case PIPE_FORMAT_R16_FLOAT:
- output_format = PIPE_FORMAT_R32_FLOAT;
- output_format_size = 4;
- break;
- case PIPE_FORMAT_R16G16_FLOAT:
- output_format = PIPE_FORMAT_R32G32_FLOAT;
- output_format_size = 8;
- break;
- case PIPE_FORMAT_R16G16B16_FLOAT:
- output_format = PIPE_FORMAT_R32G32B32_FLOAT;
- output_format_size = 12;
- break;
- case PIPE_FORMAT_R16G16B16A16_FLOAT:
- output_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
- output_format_size = 16;
- break;
- default:;
- }
-
- /* Add this vertex element. */
- te = &key.element[key.nr_elements];
- /*te->type;
- te->instance_divisor;*/
- te->input_buffer = mgr->ve->ve[i].vertex_buffer_index;
- te->input_format = mgr->ve->ve[i].src_format;
- te->input_offset = mgr->ve->ve[i].src_offset;
- te->output_format = output_format;
- te->output_offset = key.output_stride;
-
- key.output_stride += output_format_size;
- vb_translated[mgr->ve->ve[i].vertex_buffer_index] = TRUE;
- tr_elem_index[i] = key.nr_elements;
- key.nr_elements++;
- }
-
- /* Get a translate object. */
- tr = translate_cache_find(mgr->translate_cache, &key);
-
- /* Map buffers we want to translate. */
- for (i = 0; i < mgr->b.nr_vertex_buffers; i++) {
- if (vb_translated[i]) {
- struct pipe_vertex_buffer *vb = &mgr->b.vertex_buffer[i];
-
- vb_map[i] = pipe_buffer_map(mgr->pipe, vb->buffer,
- PIPE_TRANSFER_READ, &vb_transfer[i]);
-
- tr->set_buffer(tr, i,
- vb_map[i] + vb->buffer_offset + vb->stride * min_index,
- vb->stride, ~0);
- }
- }
-
- /* Create and map the output buffer. */
- num_verts = max_index + 1 - min_index;
-
- u_upload_alloc(mgr->b.uploader,
- key.output_stride * min_index,
- key.output_stride * num_verts,
- &out_offset, &out_buffer, &upload_flushed,
- (void**)&out_map);
-
- out_offset -= key.output_stride * min_index;
-
- /* Translate. */
- tr->run(tr, 0, num_verts, 0, out_map);
-
- /* Unmap all buffers. */
- for (i = 0; i < mgr->b.nr_vertex_buffers; i++) {
- if (vb_translated[i]) {
- pipe_buffer_unmap(mgr->pipe, vb_transfer[i]);
- }
- }
-
- /* Setup the new vertex buffer in the first free slot. */
- mgr->translate_vb_slot = ~0;
- for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
- if (!mgr->b.vertex_buffer[i].buffer) {
- mgr->translate_vb_slot = i;
-
- if (i >= mgr->b.nr_vertex_buffers) {
- mgr->b.nr_real_vertex_buffers = i+1;
- }
- break;
- }
- }
-
- if (mgr->translate_vb_slot != ~0) {
- /* Setup the new vertex buffer. */
- pipe_resource_reference(
- &mgr->b.real_vertex_buffer[mgr->translate_vb_slot], out_buffer);
- mgr->b.vertex_buffer[mgr->translate_vb_slot].buffer_offset = out_offset;
- mgr->b.vertex_buffer[mgr->translate_vb_slot].stride = key.output_stride;
-
- /* Setup new vertex elements. */
- for (i = 0; i < mgr->ve->count; i++) {
- if (tr_elem_index[i] < key.nr_elements) {
- te = &key.element[tr_elem_index[i]];
- new_velems[i].instance_divisor = mgr->ve->ve[i].instance_divisor;
- new_velems[i].src_format = te->output_format;
- new_velems[i].src_offset = te->output_offset;
- new_velems[i].vertex_buffer_index = mgr->translate_vb_slot;
- } else {
- memcpy(&new_velems[i], &mgr->ve->ve[i],
- sizeof(struct pipe_vertex_element));
- }
- }
-
- mgr->fallback_ve =
- mgr->pipe->create_vertex_elements_state(mgr->pipe, mgr->ve->count,
- new_velems);
-
- /* Preserve saved_ve. */
- mgr->ve_binding_lock = TRUE;
- mgr->pipe->bind_vertex_elements_state(mgr->pipe, mgr->fallback_ve);
- mgr->ve_binding_lock = FALSE;
- }
-
- pipe_resource_reference(&out_buffer, NULL);
-
- return upload_flushed ? U_VBUF_UPLOAD_FLUSHED : 0;
-}
-
-static void u_vbuf_translate_end(struct u_vbuf_mgr_priv *mgr)
-{
- if (mgr->fallback_ve == NULL) {
- return;
- }
-
- /* Restore vertex elements. */
- /* Note that saved_ve will be overwritten in bind_vertex_elements_state. */
- mgr->pipe->bind_vertex_elements_state(mgr->pipe, mgr->saved_ve);
- mgr->pipe->delete_vertex_elements_state(mgr->pipe, mgr->fallback_ve);
- mgr->fallback_ve = NULL;
-
- /* Delete the now-unused VBO. */
- pipe_resource_reference(&mgr->b.real_vertex_buffer[mgr->translate_vb_slot],
- NULL);
- mgr->b.nr_real_vertex_buffers = mgr->b.nr_vertex_buffers;
-}
-
-#define FORMAT_REPLACE(what, withwhat) \
- case PIPE_FORMAT_##what: format = PIPE_FORMAT_##withwhat; break
-
-struct u_vbuf_mgr_elements *
-u_vbuf_mgr_create_vertex_elements(struct u_vbuf_mgr *mgrb,
- unsigned count,
- const struct pipe_vertex_element *attribs,
- struct pipe_vertex_element *native_attribs)
-{
- struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb;
- unsigned i;
- struct u_vbuf_mgr_elements *ve = CALLOC_STRUCT(u_vbuf_mgr_elements);
-
- ve->count = count;
-
- if (!count) {
- return ve;
- }
-
- memcpy(ve->ve, attribs, sizeof(struct pipe_vertex_element) * count);
- memcpy(native_attribs, attribs, sizeof(struct pipe_vertex_element) * count);
-
- /* Set the best native format in case the original format is not
- * supported. */
- for (i = 0; i < count; i++) {
- enum pipe_format format = ve->ve[i].src_format;
-
- ve->src_format_size[i] = util_format_get_blocksize(format);
-
- /* Choose a native format.
- * For now we don't care about the alignment, that's going to
- * be sorted out later. */
- if (!mgr->b.caps.format_fixed32) {
- switch (format) {
- FORMAT_REPLACE(R32_FIXED, R32_FLOAT);
- FORMAT_REPLACE(R32G32_FIXED, R32G32_FLOAT);
- FORMAT_REPLACE(R32G32B32_FIXED, R32G32B32_FLOAT);
- FORMAT_REPLACE(R32G32B32A32_FIXED, R32G32B32A32_FLOAT);
- default:;
- }
- }
- if (!mgr->b.caps.format_float16) {
- switch (format) {
- FORMAT_REPLACE(R16_FLOAT, R32_FLOAT);
- FORMAT_REPLACE(R16G16_FLOAT, R32G32_FLOAT);
- FORMAT_REPLACE(R16G16B16_FLOAT, R32G32B32_FLOAT);
- FORMAT_REPLACE(R16G16B16A16_FLOAT, R32G32B32A32_FLOAT);
- default:;
- }
- }
- if (!mgr->b.caps.format_float64) {
- switch (format) {
- FORMAT_REPLACE(R64_FLOAT, R32_FLOAT);
- FORMAT_REPLACE(R64G64_FLOAT, R32G32_FLOAT);
- FORMAT_REPLACE(R64G64B64_FLOAT, R32G32B32_FLOAT);
- FORMAT_REPLACE(R64G64B64A64_FLOAT, R32G32B32A32_FLOAT);
- default:;
- }
- }
- if (!mgr->b.caps.format_norm32) {
- switch (format) {
- FORMAT_REPLACE(R32_UNORM, R32_FLOAT);
- FORMAT_REPLACE(R32G32_UNORM, R32G32_FLOAT);
- FORMAT_REPLACE(R32G32B32_UNORM, R32G32B32_FLOAT);
- FORMAT_REPLACE(R32G32B32A32_UNORM, R32G32B32A32_FLOAT);
- FORMAT_REPLACE(R32_SNORM, R32_FLOAT);
- FORMAT_REPLACE(R32G32_SNORM, R32G32_FLOAT);
- FORMAT_REPLACE(R32G32B32_SNORM, R32G32B32_FLOAT);
- FORMAT_REPLACE(R32G32B32A32_SNORM, R32G32B32A32_FLOAT);
- default:;
- }
- }
- if (!mgr->b.caps.format_scaled32) {
- switch (format) {
- FORMAT_REPLACE(R32_USCALED, R32_FLOAT);
- FORMAT_REPLACE(R32G32_USCALED, R32G32_FLOAT);
- FORMAT_REPLACE(R32G32B32_USCALED, R32G32B32_FLOAT);
- FORMAT_REPLACE(R32G32B32A32_USCALED,R32G32B32A32_FLOAT);
- FORMAT_REPLACE(R32_SSCALED, R32_FLOAT);
- FORMAT_REPLACE(R32G32_SSCALED, R32G32_FLOAT);
- FORMAT_REPLACE(R32G32B32_SSCALED, R32G32B32_FLOAT);
- FORMAT_REPLACE(R32G32B32A32_SSCALED,R32G32B32A32_FLOAT);
- default:;
- }
- }
-
- native_attribs[i].src_format = format;
- ve->native_format[i] = format;
- ve->native_format_size[i] =
- util_format_get_blocksize(ve->native_format[i]);
-
- ve->incompatible_layout =
- ve->incompatible_layout ||
- ve->ve[i].src_format != ve->native_format[i] ||
- (!mgr->b.caps.fetch_dword_unaligned && ve->ve[i].src_offset % 4 != 0);
- }
-
- /* Align the formats to the size of DWORD if needed. */
- if (!mgr->b.caps.fetch_dword_unaligned) {
- for (i = 0; i < count; i++) {
- ve->native_format_size[i] = align(ve->native_format_size[i], 4);
- }
- }
-
- return ve;
-}
-
-void u_vbuf_mgr_bind_vertex_elements(struct u_vbuf_mgr *mgrb,
- void *cso,
- struct u_vbuf_mgr_elements *ve)
-{
- struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb;
-
- if (!cso) {
- return;
- }
-
- if (!mgr->ve_binding_lock) {
- mgr->saved_ve = cso;
- mgr->ve = ve;
- }
-}
-
-void u_vbuf_mgr_destroy_vertex_elements(struct u_vbuf_mgr *mgr,
- struct u_vbuf_mgr_elements *ve)
-{
- FREE(ve);
-}
-
-void u_vbuf_mgr_set_vertex_buffers(struct u_vbuf_mgr *mgrb,
- unsigned count,
- const struct pipe_vertex_buffer *bufs)
-{
- struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb;
- unsigned i;
-
- mgr->any_user_vbs = FALSE;
- mgr->incompatible_vb_layout = FALSE;
-
- if (!mgr->b.caps.fetch_dword_unaligned) {
- /* Check if the strides and offsets are aligned to the size of DWORD. */
- for (i = 0; i < count; i++) {
- if (bufs[i].buffer) {
- if (bufs[i].stride % 4 != 0 ||
- bufs[i].buffer_offset % 4 != 0) {
- mgr->incompatible_vb_layout = TRUE;
- break;
- }
- }
- }
- }
-
- for (i = 0; i < count; i++) {
- const struct pipe_vertex_buffer *vb = &bufs[i];
-
- pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, vb->buffer);
- pipe_resource_reference(&mgr->b.real_vertex_buffer[i], NULL);
- mgr->saved_buffer_offset[i] = vb->buffer_offset;
-
- if (!vb->buffer) {
- continue;
- }
-
- if (u_vbuf_resource(vb->buffer)->user_ptr) {
- mgr->any_user_vbs = TRUE;
- continue;
- }
-
- pipe_resource_reference(&mgr->b.real_vertex_buffer[i], vb->buffer);
- }
-
- for (; i < mgr->b.nr_real_vertex_buffers; i++) {
- pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, NULL);
- pipe_resource_reference(&mgr->b.real_vertex_buffer[i], NULL);
- }
-
- memcpy(mgr->b.vertex_buffer, bufs,
- sizeof(struct pipe_vertex_buffer) * count);
-
- mgr->b.nr_vertex_buffers = count;
- mgr->b.nr_real_vertex_buffers = count;
-}
-
-static enum u_vbuf_return_flags
-u_vbuf_upload_buffers(struct u_vbuf_mgr_priv *mgr,
- int min_index, int max_index,
- unsigned instance_count)
-{
- unsigned i, nr = mgr->ve->count;
- unsigned count = max_index + 1 - min_index;
- boolean uploaded[PIPE_MAX_ATTRIBS] = {0};
- enum u_vbuf_return_flags retval = 0;
-
- for (i = 0; i < nr; i++) {
- unsigned index = mgr->ve->ve[i].vertex_buffer_index;
- struct pipe_vertex_buffer *vb = &mgr->b.vertex_buffer[index];
-
- if (vb->buffer &&
- u_vbuf_resource(vb->buffer)->user_ptr &&
- !uploaded[index]) {
- unsigned first, size;
- boolean flushed;
- unsigned instance_div = mgr->ve->ve[i].instance_divisor;
-
- if (instance_div) {
- first = 0;
- size = vb->stride *
- ((instance_count + instance_div - 1) / instance_div);
- } else if (vb->stride) {
- first = vb->stride * min_index;
- size = vb->stride * count;
-
- /* Unusual case when stride is smaller than the format size.
- * XXX This won't work with interleaved arrays. */
- if (mgr->ve->native_format_size[i] > vb->stride)
- size += mgr->ve->native_format_size[i] - vb->stride;
- } else {
- first = 0;
- size = mgr->ve->native_format_size[i];
- }
-
- u_upload_data(mgr->b.uploader, first, size,
- u_vbuf_resource(vb->buffer)->user_ptr + first,
- &vb->buffer_offset,
- &mgr->b.real_vertex_buffer[index],
- &flushed);
-
- vb->buffer_offset -= first;
-
- uploaded[index] = TRUE;
- if (flushed)
- retval |= U_VBUF_UPLOAD_FLUSHED;
- } else {
- assert(mgr->b.real_vertex_buffer[index]);
- }
- }
-
- return retval;
-}
-
-static void u_vbuf_mgr_compute_max_index(struct u_vbuf_mgr_priv *mgr)
-{
- unsigned i, nr = mgr->ve->count;
-
- mgr->b.max_index = ~0;
-
- for (i = 0; i < nr; i++) {
- struct pipe_vertex_buffer *vb =
- &mgr->b.vertex_buffer[mgr->ve->ve[i].vertex_buffer_index];
- int unused;
- unsigned max_index;
-
- if (!vb->buffer ||
- !vb->stride ||
- u_vbuf_resource(vb->buffer)->user_ptr) {
- continue;
- }
-
- /* How many bytes is unused after the last vertex.
- * width0 may be "count*stride - unused" and we have to compensate
- * for that when dividing by stride. */
- unused = vb->stride -
- (mgr->ve->ve[i].src_offset + mgr->ve->src_format_size[i]);
-
- /* If src_offset is greater than stride (which means it's a buffer
- * offset rather than a vertex offset)... */
- if (unused < 0) {
- unused = 0;
- }
-
- /* Compute the maximum index for this vertex element. */
- max_index =
- (vb->buffer->width0 - vb->buffer_offset + (unsigned)unused) /
- vb->stride - 1;
-
- mgr->b.max_index = MIN2(mgr->b.max_index, max_index);
- }
-}
-
-enum u_vbuf_return_flags
-u_vbuf_mgr_draw_begin(struct u_vbuf_mgr *mgrb,
- const struct pipe_draw_info *info)
-{
- struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb;
- int min_index, max_index;
- enum u_vbuf_return_flags retval = 0;
-
- u_vbuf_mgr_compute_max_index(mgr);
-
- min_index = info->min_index - info->index_bias;
- if (info->max_index == ~0) {
- max_index = mgr->b.max_index;
- } else {
- max_index = MIN2(info->max_index - info->index_bias, mgr->b.max_index);
- }
-
- /* Translate vertices with non-native layouts or formats. */
- if (mgr->incompatible_vb_layout || mgr->ve->incompatible_layout) {
- retval |= u_vbuf_translate_begin(mgr, min_index, max_index);
-
- if (mgr->fallback_ve) {
- retval |= U_VBUF_BUFFERS_UPDATED;
- }
- }
-
- /* Upload user buffers. */
- if (mgr->any_user_vbs) {
- retval |= u_vbuf_upload_buffers(mgr, min_index, max_index,
- info->instance_count);
- retval |= U_VBUF_BUFFERS_UPDATED;
- }
- return retval;
-}
-
-void u_vbuf_mgr_draw_end(struct u_vbuf_mgr *mgrb)
-{
- struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb;
- unsigned i;
-
- /* buffer offsets were modified in u_vbuf_upload_buffers */
- if (mgr->any_user_vbs) {
- for (i = 0; i < mgr->b.nr_vertex_buffers; i++)
- mgr->b.vertex_buffer[i].buffer_offset = mgr->saved_buffer_offset[i];
- }
-
- if (mgr->fallback_ve) {
- u_vbuf_translate_end(mgr);
- }
-}
+/**************************************************************************
+ *
+ * Copyright 2011 Marek Olšák <maraeo@gmail.com>
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "util/u_vbuf_mgr.h"
+
+#include "util/u_format.h"
+#include "util/u_inlines.h"
+#include "util/u_memory.h"
+#include "util/u_upload_mgr.h"
+#include "translate/translate.h"
+#include "translate/translate_cache.h"
+
+struct u_vbuf_mgr_elements {
+ unsigned count;
+ struct pipe_vertex_element ve[PIPE_MAX_ATTRIBS];
+
+ unsigned src_format_size[PIPE_MAX_ATTRIBS];
+
+ /* If (velem[i].src_format != native_format[i]), the vertex buffer
+ * referenced by the vertex element cannot be used for rendering and
+ * its vertex data must be translated to native_format[i]. */
+ enum pipe_format native_format[PIPE_MAX_ATTRIBS];
+ unsigned native_format_size[PIPE_MAX_ATTRIBS];
+
+ /* This might mean two things:
+ * - src_format != native_format, as discussed above.
+ * - src_offset % 4 != 0 (if the caps don't allow such an offset). */
+ boolean incompatible_layout;
+};
+
+struct u_vbuf_mgr_priv {
+ struct u_vbuf_mgr b;
+ struct pipe_context *pipe;
+
+ struct translate_cache *translate_cache;
+ unsigned translate_vb_slot;
+
+ struct u_vbuf_mgr_elements *ve;
+ void *saved_ve, *fallback_ve;
+ boolean ve_binding_lock;
+
+ unsigned saved_buffer_offset[PIPE_MAX_ATTRIBS];
+
+ boolean any_user_vbs;
+ boolean incompatible_vb_layout;
+};
+
+static void u_vbuf_mgr_init_format_caps(struct u_vbuf_mgr_priv *mgr)
+{
+ struct pipe_screen *screen = mgr->pipe->screen;
+
+ mgr->b.caps.format_fixed32 =
+ screen->is_format_supported(screen, PIPE_FORMAT_R32_FIXED, PIPE_BUFFER,
+ 0, PIPE_BIND_VERTEX_BUFFER);
+
+ mgr->b.caps.format_float16 =
+ screen->is_format_supported(screen, PIPE_FORMAT_R16_FLOAT, PIPE_BUFFER,
+ 0, PIPE_BIND_VERTEX_BUFFER);
+
+ mgr->b.caps.format_float64 =
+ screen->is_format_supported(screen, PIPE_FORMAT_R64_FLOAT, PIPE_BUFFER,
+ 0, PIPE_BIND_VERTEX_BUFFER);
+
+ mgr->b.caps.format_norm32 =
+ screen->is_format_supported(screen, PIPE_FORMAT_R32_UNORM, PIPE_BUFFER,
+ 0, PIPE_BIND_VERTEX_BUFFER) &&
+ screen->is_format_supported(screen, PIPE_FORMAT_R32_SNORM, PIPE_BUFFER,
+ 0, PIPE_BIND_VERTEX_BUFFER);
+
+ mgr->b.caps.format_scaled32 =
+ screen->is_format_supported(screen, PIPE_FORMAT_R32_USCALED, PIPE_BUFFER,
+ 0, PIPE_BIND_VERTEX_BUFFER) &&
+ screen->is_format_supported(screen, PIPE_FORMAT_R32_SSCALED, PIPE_BUFFER,
+ 0, PIPE_BIND_VERTEX_BUFFER);
+}
+
+struct u_vbuf_mgr *
+u_vbuf_mgr_create(struct pipe_context *pipe,
+ unsigned upload_buffer_size,
+ unsigned upload_buffer_alignment,
+ unsigned upload_buffer_bind,
+ enum u_fetch_alignment fetch_alignment)
+{
+ struct u_vbuf_mgr_priv *mgr = CALLOC_STRUCT(u_vbuf_mgr_priv);
+
+ mgr->pipe = pipe;
+ mgr->translate_cache = translate_cache_create();
+
+ mgr->b.uploader = u_upload_create(pipe, upload_buffer_size,
+ upload_buffer_alignment,
+ upload_buffer_bind);
+
+ mgr->b.caps.fetch_dword_unaligned =
+ fetch_alignment == U_VERTEX_FETCH_BYTE_ALIGNED;
+
+ u_vbuf_mgr_init_format_caps(mgr);
+
+ return &mgr->b;
+}
+
+void u_vbuf_mgr_destroy(struct u_vbuf_mgr *mgrb)
+{
+ struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb;
+ unsigned i;
+
+ for (i = 0; i < mgr->b.nr_real_vertex_buffers; i++) {
+ pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, NULL);
+ pipe_resource_reference(&mgr->b.real_vertex_buffer[i], NULL);
+ }
+
+ translate_cache_destroy(mgr->translate_cache);
+ u_upload_destroy(mgr->b.uploader);
+ FREE(mgr);
+}
+
+
+static enum u_vbuf_return_flags
+u_vbuf_translate_begin(struct u_vbuf_mgr_priv *mgr,
+ int min_index, int max_index)
+{
+ struct translate_key key;
+ struct translate_element *te;
+ unsigned tr_elem_index[PIPE_MAX_ATTRIBS];
+ struct translate *tr;
+ boolean vb_translated[PIPE_MAX_ATTRIBS] = {0};
+ uint8_t *vb_map[PIPE_MAX_ATTRIBS] = {0}, *out_map;
+ struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS] = {0};
+ struct pipe_resource *out_buffer = NULL;
+ unsigned i, num_verts, out_offset;
+ struct pipe_vertex_element new_velems[PIPE_MAX_ATTRIBS];
+ boolean upload_flushed = FALSE;
+
+ memset(&key, 0, sizeof(key));
+ memset(tr_elem_index, 0xff, sizeof(tr_elem_index));
+
+ /* Initialize the translate key, i.e. the recipe how vertices should be
+ * translated. */
+ memset(&key, 0, sizeof key);
+ for (i = 0; i < mgr->ve->count; i++) {
+ struct pipe_vertex_buffer *vb =
+ &mgr->b.vertex_buffer[mgr->ve->ve[i].vertex_buffer_index];
+ enum pipe_format output_format = mgr->ve->native_format[i];
+ unsigned output_format_size = mgr->ve->native_format_size[i];
+
+ /* Check for support. */
+ if (mgr->ve->ve[i].src_format == mgr->ve->native_format[i] &&
+ (mgr->b.caps.fetch_dword_unaligned ||
+ (vb->buffer_offset % 4 == 0 &&
+ vb->stride % 4 == 0 &&
+ mgr->ve->ve[i].src_offset % 4 == 0))) {
+ continue;
+ }
+
+ /* Workaround for translate: output floats instead of halfs. */
+ switch (output_format) {
+ case PIPE_FORMAT_R16_FLOAT:
+ output_format = PIPE_FORMAT_R32_FLOAT;
+ output_format_size = 4;
+ break;
+ case PIPE_FORMAT_R16G16_FLOAT:
+ output_format = PIPE_FORMAT_R32G32_FLOAT;
+ output_format_size = 8;
+ break;
+ case PIPE_FORMAT_R16G16B16_FLOAT:
+ output_format = PIPE_FORMAT_R32G32B32_FLOAT;
+ output_format_size = 12;
+ break;
+ case PIPE_FORMAT_R16G16B16A16_FLOAT:
+ output_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
+ output_format_size = 16;
+ break;
+ default:;
+ }
+
+ /* Add this vertex element. */
+ te = &key.element[key.nr_elements];
+ /*te->type;
+ te->instance_divisor;*/
+ te->input_buffer = mgr->ve->ve[i].vertex_buffer_index;
+ te->input_format = mgr->ve->ve[i].src_format;
+ te->input_offset = mgr->ve->ve[i].src_offset;
+ te->output_format = output_format;
+ te->output_offset = key.output_stride;
+
+ key.output_stride += output_format_size;
+ vb_translated[mgr->ve->ve[i].vertex_buffer_index] = TRUE;
+ tr_elem_index[i] = key.nr_elements;
+ key.nr_elements++;
+ }
+
+ /* Get a translate object. */
+ tr = translate_cache_find(mgr->translate_cache, &key);
+
+ /* Map buffers we want to translate. */
+ for (i = 0; i < mgr->b.nr_vertex_buffers; i++) {
+ if (vb_translated[i]) {
+ struct pipe_vertex_buffer *vb = &mgr->b.vertex_buffer[i];
+
+ vb_map[i] = pipe_buffer_map(mgr->pipe, vb->buffer,
+ PIPE_TRANSFER_READ, &vb_transfer[i]);
+
+ tr->set_buffer(tr, i,
+ vb_map[i] + vb->buffer_offset + vb->stride * min_index,
+ vb->stride, ~0);
+ }
+ }
+
+ /* Create and map the output buffer. */
+ num_verts = max_index + 1 - min_index;
+
+ u_upload_alloc(mgr->b.uploader,
+ key.output_stride * min_index,
+ key.output_stride * num_verts,
+ &out_offset, &out_buffer, &upload_flushed,
+ (void**)&out_map);
+
+ out_offset -= key.output_stride * min_index;
+
+ /* Translate. */
+ tr->run(tr, 0, num_verts, 0, out_map);
+
+ /* Unmap all buffers. */
+ for (i = 0; i < mgr->b.nr_vertex_buffers; i++) {
+ if (vb_translated[i]) {
+ pipe_buffer_unmap(mgr->pipe, vb_transfer[i]);
+ }
+ }
+
+ /* Setup the new vertex buffer in the first free slot. */
+ mgr->translate_vb_slot = ~0;
+ for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
+ if (!mgr->b.vertex_buffer[i].buffer) {
+ mgr->translate_vb_slot = i;
+
+ if (i >= mgr->b.nr_vertex_buffers) {
+ mgr->b.nr_real_vertex_buffers = i+1;
+ }
+ break;
+ }
+ }
+
+ if (mgr->translate_vb_slot != ~0) {
+ /* Setup the new vertex buffer. */
+ pipe_resource_reference(
+ &mgr->b.real_vertex_buffer[mgr->translate_vb_slot], out_buffer);
+ mgr->b.vertex_buffer[mgr->translate_vb_slot].buffer_offset = out_offset;
+ mgr->b.vertex_buffer[mgr->translate_vb_slot].stride = key.output_stride;
+
+ /* Setup new vertex elements. */
+ for (i = 0; i < mgr->ve->count; i++) {
+ if (tr_elem_index[i] < key.nr_elements) {
+ te = &key.element[tr_elem_index[i]];
+ new_velems[i].instance_divisor = mgr->ve->ve[i].instance_divisor;
+ new_velems[i].src_format = te->output_format;
+ new_velems[i].src_offset = te->output_offset;
+ new_velems[i].vertex_buffer_index = mgr->translate_vb_slot;
+ } else {
+ memcpy(&new_velems[i], &mgr->ve->ve[i],
+ sizeof(struct pipe_vertex_element));
+ }
+ }
+
+ mgr->fallback_ve =
+ mgr->pipe->create_vertex_elements_state(mgr->pipe, mgr->ve->count,
+ new_velems);
+
+ /* Preserve saved_ve. */
+ mgr->ve_binding_lock = TRUE;
+ mgr->pipe->bind_vertex_elements_state(mgr->pipe, mgr->fallback_ve);
+ mgr->ve_binding_lock = FALSE;
+ }
+
+ pipe_resource_reference(&out_buffer, NULL);
+
+ return upload_flushed ? U_VBUF_UPLOAD_FLUSHED : 0;
+}
+
+static void u_vbuf_translate_end(struct u_vbuf_mgr_priv *mgr)
+{
+ if (mgr->fallback_ve == NULL) {
+ return;
+ }
+
+ /* Restore vertex elements. */
+ /* Note that saved_ve will be overwritten in bind_vertex_elements_state. */
+ mgr->pipe->bind_vertex_elements_state(mgr->pipe, mgr->saved_ve);
+ mgr->pipe->delete_vertex_elements_state(mgr->pipe, mgr->fallback_ve);
+ mgr->fallback_ve = NULL;
+
+ /* Delete the now-unused VBO. */
+ pipe_resource_reference(&mgr->b.real_vertex_buffer[mgr->translate_vb_slot],
+ NULL);
+ mgr->b.nr_real_vertex_buffers = mgr->b.nr_vertex_buffers;
+}
+
+#define FORMAT_REPLACE(what, withwhat) \
+ case PIPE_FORMAT_##what: format = PIPE_FORMAT_##withwhat; break
+
+struct u_vbuf_mgr_elements *
+u_vbuf_mgr_create_vertex_elements(struct u_vbuf_mgr *mgrb,
+ unsigned count,
+ const struct pipe_vertex_element *attribs,
+ struct pipe_vertex_element *native_attribs)
+{
+ struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb;
+ unsigned i;
+ struct u_vbuf_mgr_elements *ve = CALLOC_STRUCT(u_vbuf_mgr_elements);
+
+ ve->count = count;
+
+ if (!count) {
+ return ve;
+ }
+
+ memcpy(ve->ve, attribs, sizeof(struct pipe_vertex_element) * count);
+ memcpy(native_attribs, attribs, sizeof(struct pipe_vertex_element) * count);
+
+ /* Set the best native format in case the original format is not
+ * supported. */
+ for (i = 0; i < count; i++) {
+ enum pipe_format format = ve->ve[i].src_format;
+
+ ve->src_format_size[i] = util_format_get_blocksize(format);
+
+ /* Choose a native format.
+ * For now we don't care about the alignment, that's going to
+ * be sorted out later. */
+ if (!mgr->b.caps.format_fixed32) {
+ switch (format) {
+ FORMAT_REPLACE(R32_FIXED, R32_FLOAT);
+ FORMAT_REPLACE(R32G32_FIXED, R32G32_FLOAT);
+ FORMAT_REPLACE(R32G32B32_FIXED, R32G32B32_FLOAT);
+ FORMAT_REPLACE(R32G32B32A32_FIXED, R32G32B32A32_FLOAT);
+ default:;
+ }
+ }
+ if (!mgr->b.caps.format_float16) {
+ switch (format) {
+ FORMAT_REPLACE(R16_FLOAT, R32_FLOAT);
+ FORMAT_REPLACE(R16G16_FLOAT, R32G32_FLOAT);
+ FORMAT_REPLACE(R16G16B16_FLOAT, R32G32B32_FLOAT);
+ FORMAT_REPLACE(R16G16B16A16_FLOAT, R32G32B32A32_FLOAT);
+ default:;
+ }
+ }
+ if (!mgr->b.caps.format_float64) {
+ switch (format) {
+ FORMAT_REPLACE(R64_FLOAT, R32_FLOAT);
+ FORMAT_REPLACE(R64G64_FLOAT, R32G32_FLOAT);
+ FORMAT_REPLACE(R64G64B64_FLOAT, R32G32B32_FLOAT);
+ FORMAT_REPLACE(R64G64B64A64_FLOAT, R32G32B32A32_FLOAT);
+ default:;
+ }
+ }
+ if (!mgr->b.caps.format_norm32) {
+ switch (format) {
+ FORMAT_REPLACE(R32_UNORM, R32_FLOAT);
+ FORMAT_REPLACE(R32G32_UNORM, R32G32_FLOAT);
+ FORMAT_REPLACE(R32G32B32_UNORM, R32G32B32_FLOAT);
+ FORMAT_REPLACE(R32G32B32A32_UNORM, R32G32B32A32_FLOAT);
+ FORMAT_REPLACE(R32_SNORM, R32_FLOAT);
+ FORMAT_REPLACE(R32G32_SNORM, R32G32_FLOAT);
+ FORMAT_REPLACE(R32G32B32_SNORM, R32G32B32_FLOAT);
+ FORMAT_REPLACE(R32G32B32A32_SNORM, R32G32B32A32_FLOAT);
+ default:;
+ }
+ }
+ if (!mgr->b.caps.format_scaled32) {
+ switch (format) {
+ FORMAT_REPLACE(R32_USCALED, R32_FLOAT);
+ FORMAT_REPLACE(R32G32_USCALED, R32G32_FLOAT);
+ FORMAT_REPLACE(R32G32B32_USCALED, R32G32B32_FLOAT);
+ FORMAT_REPLACE(R32G32B32A32_USCALED,R32G32B32A32_FLOAT);
+ FORMAT_REPLACE(R32_SSCALED, R32_FLOAT);
+ FORMAT_REPLACE(R32G32_SSCALED, R32G32_FLOAT);
+ FORMAT_REPLACE(R32G32B32_SSCALED, R32G32B32_FLOAT);
+ FORMAT_REPLACE(R32G32B32A32_SSCALED,R32G32B32A32_FLOAT);
+ default:;
+ }
+ }
+
+ native_attribs[i].src_format = format;
+ ve->native_format[i] = format;
+ ve->native_format_size[i] =
+ util_format_get_blocksize(ve->native_format[i]);
+
+ ve->incompatible_layout =
+ ve->incompatible_layout ||
+ ve->ve[i].src_format != ve->native_format[i] ||
+ (!mgr->b.caps.fetch_dword_unaligned && ve->ve[i].src_offset % 4 != 0);
+ }
+
+ /* Align the formats to the size of DWORD if needed. */
+ if (!mgr->b.caps.fetch_dword_unaligned) {
+ for (i = 0; i < count; i++) {
+ ve->native_format_size[i] = align(ve->native_format_size[i], 4);
+ }
+ }
+
+ return ve;
+}
+
+void u_vbuf_mgr_bind_vertex_elements(struct u_vbuf_mgr *mgrb,
+ void *cso,
+ struct u_vbuf_mgr_elements *ve)
+{
+ struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb;
+
+ if (!cso) {
+ return;
+ }
+
+ if (!mgr->ve_binding_lock) {
+ mgr->saved_ve = cso;
+ mgr->ve = ve;
+ }
+}
+
+void u_vbuf_mgr_destroy_vertex_elements(struct u_vbuf_mgr *mgr,
+ struct u_vbuf_mgr_elements *ve)
+{
+ FREE(ve);
+}
+
+void u_vbuf_mgr_set_vertex_buffers(struct u_vbuf_mgr *mgrb,
+ unsigned count,
+ const struct pipe_vertex_buffer *bufs)
+{
+ struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb;
+ unsigned i;
+
+ mgr->any_user_vbs = FALSE;
+ mgr->incompatible_vb_layout = FALSE;
+
+ if (!mgr->b.caps.fetch_dword_unaligned) {
+ /* Check if the strides and offsets are aligned to the size of DWORD. */
+ for (i = 0; i < count; i++) {
+ if (bufs[i].buffer) {
+ if (bufs[i].stride % 4 != 0 ||
+ bufs[i].buffer_offset % 4 != 0) {
+ mgr->incompatible_vb_layout = TRUE;
+ break;
+ }
+ }
+ }
+ }
+
+ for (i = 0; i < count; i++) {
+ const struct pipe_vertex_buffer *vb = &bufs[i];
+
+ pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, vb->buffer);
+ pipe_resource_reference(&mgr->b.real_vertex_buffer[i], NULL);
+ mgr->saved_buffer_offset[i] = vb->buffer_offset;
+
+ if (!vb->buffer) {
+ continue;
+ }
+
+ if (u_vbuf_resource(vb->buffer)->user_ptr) {
+ mgr->any_user_vbs = TRUE;
+ continue;
+ }
+
+ pipe_resource_reference(&mgr->b.real_vertex_buffer[i], vb->buffer);
+ }
+
+ for (; i < mgr->b.nr_real_vertex_buffers; i++) {
+ pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, NULL);
+ pipe_resource_reference(&mgr->b.real_vertex_buffer[i], NULL);
+ }
+
+ memcpy(mgr->b.vertex_buffer, bufs,
+ sizeof(struct pipe_vertex_buffer) * count);
+
+ mgr->b.nr_vertex_buffers = count;
+ mgr->b.nr_real_vertex_buffers = count;
+}
+
+static enum u_vbuf_return_flags
+u_vbuf_upload_buffers(struct u_vbuf_mgr_priv *mgr,
+ int min_index, int max_index,
+ unsigned instance_count)
+{
+ unsigned i, nr = mgr->ve->count;
+ unsigned count = max_index + 1 - min_index;
+ boolean uploaded[PIPE_MAX_ATTRIBS] = {0};
+ enum u_vbuf_return_flags retval = 0;
+
+ for (i = 0; i < nr; i++) {
+ unsigned index = mgr->ve->ve[i].vertex_buffer_index;
+ struct pipe_vertex_buffer *vb = &mgr->b.vertex_buffer[index];
+
+ if (vb->buffer &&
+ u_vbuf_resource(vb->buffer)->user_ptr &&
+ !uploaded[index]) {
+ unsigned first, size;
+ boolean flushed;
+ unsigned instance_div = mgr->ve->ve[i].instance_divisor;
+
+ if (instance_div) {
+ first = 0;
+ size = vb->stride *
+ ((instance_count + instance_div - 1) / instance_div);
+ } else if (vb->stride) {
+ first = vb->stride * min_index;
+ size = vb->stride * count;
+
+ /* Unusual case when stride is smaller than the format size.
+ * XXX This won't work with interleaved arrays. */
+ if (mgr->ve->native_format_size[i] > vb->stride)
+ size += mgr->ve->native_format_size[i] - vb->stride;
+ } else {
+ first = 0;
+ size = mgr->ve->native_format_size[i];
+ }
+
+ u_upload_data(mgr->b.uploader, first, size,
+ u_vbuf_resource(vb->buffer)->user_ptr + first,
+ &vb->buffer_offset,
+ &mgr->b.real_vertex_buffer[index],
+ &flushed);
+
+ vb->buffer_offset -= first;
+
+ uploaded[index] = TRUE;
+ if (flushed)
+ retval |= U_VBUF_UPLOAD_FLUSHED;
+ } else {
+ assert(mgr->b.real_vertex_buffer[index]);
+ }
+ }
+
+ return retval;
+}
+
+static void u_vbuf_mgr_compute_max_index(struct u_vbuf_mgr_priv *mgr)
+{
+ unsigned i, nr = mgr->ve->count;
+
+ mgr->b.max_index = ~0;
+
+ for (i = 0; i < nr; i++) {
+ struct pipe_vertex_buffer *vb =
+ &mgr->b.vertex_buffer[mgr->ve->ve[i].vertex_buffer_index];
+ int unused;
+ unsigned max_index;
+
+ if (!vb->buffer ||
+ !vb->stride ||
+ u_vbuf_resource(vb->buffer)->user_ptr) {
+ continue;
+ }
+
+ /* How many bytes is unused after the last vertex.
+ * width0 may be "count*stride - unused" and we have to compensate
+ * for that when dividing by stride. */
+ unused = vb->stride -
+ (mgr->ve->ve[i].src_offset + mgr->ve->src_format_size[i]);
+
+ /* If src_offset is greater than stride (which means it's a buffer
+ * offset rather than a vertex offset)... */
+ if (unused < 0) {
+ unused = 0;
+ }
+
+ /* Compute the maximum index for this vertex element. */
+ max_index =
+ (vb->buffer->width0 - vb->buffer_offset + (unsigned)unused) /
+ vb->stride - 1;
+
+ mgr->b.max_index = MIN2(mgr->b.max_index, max_index);
+ }
+}
+
+enum u_vbuf_return_flags
+u_vbuf_mgr_draw_begin(struct u_vbuf_mgr *mgrb,
+ const struct pipe_draw_info *info)
+{
+ struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb;
+ int min_index, max_index;
+ enum u_vbuf_return_flags retval = 0;
+
+ u_vbuf_mgr_compute_max_index(mgr);
+
+ min_index = info->min_index - info->index_bias;
+ if (info->max_index == ~0) {
+ max_index = mgr->b.max_index;
+ } else {
+ max_index = MIN2(info->max_index - info->index_bias, mgr->b.max_index);
+ }
+
+ /* Translate vertices with non-native layouts or formats. */
+ if (mgr->incompatible_vb_layout || mgr->ve->incompatible_layout) {
+ retval |= u_vbuf_translate_begin(mgr, min_index, max_index);
+
+ if (mgr->fallback_ve) {
+ retval |= U_VBUF_BUFFERS_UPDATED;
+ }
+ }
+
+ /* Upload user buffers. */
+ if (mgr->any_user_vbs) {
+ retval |= u_vbuf_upload_buffers(mgr, min_index, max_index,
+ info->instance_count);
+ retval |= U_VBUF_BUFFERS_UPDATED;
+ }
+ return retval;
+}
+
+void u_vbuf_mgr_draw_end(struct u_vbuf_mgr *mgrb)
+{
+ struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb;
+ unsigned i;
+
+ /* buffer offsets were modified in u_vbuf_upload_buffers */
+ if (mgr->any_user_vbs) {
+ for (i = 0; i < mgr->b.nr_vertex_buffers; i++)
+ mgr->b.vertex_buffer[i].buffer_offset = mgr->saved_buffer_offset[i];
+ }
+
+ if (mgr->fallback_ve) {
+ u_vbuf_translate_end(mgr);
+ }
+}