diff options
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_vbuf_mgr.c')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_vbuf_mgr.c | 1296 |
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 d9b39e528..da250cba9 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);
+ }
+}
|