diff options
Diffstat (limited to 'src/gallium/auxiliary/util')
| -rw-r--r-- | src/gallium/auxiliary/util/u_vbuf_mgr.c | 606 | ||||
| -rw-r--r-- | src/gallium/auxiliary/util/u_vbuf_mgr.h | 113 |
2 files changed, 719 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_vbuf_mgr.c b/src/gallium/auxiliary/util/u_vbuf_mgr.c new file mode 100644 index 00000000000..28c7f727ef8 --- /dev/null +++ b/src/gallium/auxiliary/util/u_vbuf_mgr.c @@ -0,0 +1,606 @@ +/************************************************************************** + * + * Copyright 2011 Marek Olšák <[email protected]> + * 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" + +/* Hardware vertex fetcher limitations can be described by this structure. */ +struct u_vbuf_caps { + /* Vertex format CAPs. */ + /* TRUE if hardware supports it. */ + unsigned format_fixed32:1; /* PIPE_FORMAT_*32*_FIXED */ + unsigned format_float16:1; /* PIPE_FORMAT_*16*_FLOAT */ + unsigned format_float64:1; /* PIPE_FORMAT_*64*_FLOAT */ + unsigned format_norm32:1; /* PIPE_FORMAT_*32*NORM */ + unsigned format_scaled32:1; /* PIPE_FORMAT_*32*SCALED */ + + /* Whether vertex fetches don't have to be dword-aligned. */ + /* TRUE if hardware supports it. */ + unsigned fetch_dword_unaligned:1; +}; + +struct u_vbuf_mgr_elements { + unsigned count; + struct pipe_vertex_element ve[PIPE_MAX_ATTRIBS]; + + /* If (velem[i].src_format != real_format[i]), the vertex buffer + * referenced by the vertex element cannot be used for rendering and + * its vertex data must be translated to real_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 u_vbuf_caps caps; + struct pipe_context *pipe; + + struct translate_cache *translate_cache; + unsigned translate_vb_slot; + + struct u_upload_mgr *uploader; + + struct u_vbuf_mgr_elements *ve; + void *saved_ve, *fallback_ve; + boolean ve_binding_lock; + + 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->caps.format_fixed32 = + screen->is_format_supported(screen, PIPE_FORMAT_R32_FIXED, PIPE_BUFFER, + 0, PIPE_BIND_VERTEX_BUFFER, 0); + + mgr->caps.format_float16 = + screen->is_format_supported(screen, PIPE_FORMAT_R16_FLOAT, PIPE_BUFFER, + 0, PIPE_BIND_VERTEX_BUFFER, 0); + + mgr->caps.format_float64 = + screen->is_format_supported(screen, PIPE_FORMAT_R64_FLOAT, PIPE_BUFFER, + 0, PIPE_BIND_VERTEX_BUFFER, 0); + + mgr->caps.format_norm32 = + screen->is_format_supported(screen, PIPE_FORMAT_R32_UNORM, PIPE_BUFFER, + 0, PIPE_BIND_VERTEX_BUFFER, 0) && + screen->is_format_supported(screen, PIPE_FORMAT_R32_SNORM, PIPE_BUFFER, + 0, PIPE_BIND_VERTEX_BUFFER, 0); + + mgr->caps.format_scaled32 = + screen->is_format_supported(screen, PIPE_FORMAT_R32_USCALED, PIPE_BUFFER, + 0, PIPE_BIND_VERTEX_BUFFER, 0) && + screen->is_format_supported(screen, PIPE_FORMAT_R32_SSCALED, PIPE_BUFFER, + 0, PIPE_BIND_VERTEX_BUFFER, 0); +} + +struct u_vbuf_mgr * +u_vbuf_mgr_create(struct pipe_context *pipe, + unsigned upload_buffer_size, + unsigned upload_buffer_alignment, + 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->uploader = u_upload_create(pipe, upload_buffer_size, + upload_buffer_alignment, + PIPE_BIND_VERTEX_BUFFER); + + mgr->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->uploader); + FREE(mgr); +} + + +static void u_vbuf_translate_begin(struct u_vbuf_mgr_priv *mgr, + int min_index, int max_index, + boolean *upload_flushed) +{ + struct translate_key key = {0}; + struct translate_element *te; + unsigned tr_elem_index[PIPE_MAX_ATTRIBS] = {0}; + 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]; + + /* Initialize the translate key, i.e. the recipe how vertices should be + * translated. */ + 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->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->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 (vb_translated[mgr->ve->ve[i].vertex_buffer_index]) { + 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); +} + +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; + + /* Choose a native format. + * For now we don't care about the alignment, that's going to + * be sorted out later. */ + if (!mgr->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->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->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->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->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->caps.fetch_dword_unaligned && ve->ve[i].src_offset % 4 != 0); + } + + /* Align the formats to the size of DWORD if needed. */ + if (!mgr->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->b.max_index = ~0; + mgr->any_user_vbs = FALSE; + mgr->incompatible_vb_layout = FALSE; + + if (!mgr->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); + + 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); + + /* The stride of zero means we will be fetching only the first + * vertex, so don't care about max_index. */ + if (!vb->stride) { + continue; + } + + /* Update the maximum index. */ + mgr->b.max_index = + MIN2(mgr->b.max_index, + (vb->buffer->width0 - vb->buffer_offset) / vb->stride); + } + + 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 void u_vbuf_upload_buffers(struct u_vbuf_mgr_priv *mgr, + int min_index, int max_index, + boolean *upload_flushed) +{ + int i, nr = mgr->ve->count; + unsigned count = max_index + 1 - min_index; + boolean uploaded[PIPE_MAX_ATTRIBS] = {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; + + if (vb->stride) { + first = vb->stride * min_index; + size = vb->stride * count; + } else { + first = 0; + size = mgr->ve->native_format_size[i]; + } + + u_upload_data(mgr->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; + *upload_flushed = *upload_flushed || flushed; + } else { + assert(mgr->b.real_vertex_buffer[index]); + } + } +} + +void u_vbuf_mgr_draw_begin(struct u_vbuf_mgr *mgrb, + const struct pipe_draw_info *info, + boolean *buffers_updated, + boolean *uploader_flushed) +{ + struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb; + boolean bufs_updated, upload_flushed = FALSE; + int min_index, max_index; + + min_index = info->min_index - info->index_bias; + max_index = MIN2(info->max_index, mgr->b.max_index) - info->index_bias; + + /* Translate vertices with non-native layouts or formats. */ + if (mgr->incompatible_vb_layout || mgr->ve->incompatible_layout) { + u_vbuf_translate_begin(mgr, min_index, max_index, &upload_flushed); + + if (mgr->fallback_ve) { + bufs_updated = TRUE; + } + } + + /* Upload user buffers. */ + if (mgr->any_user_vbs) { + u_vbuf_upload_buffers(mgr, min_index, max_index, &upload_flushed); + bufs_updated = TRUE; + } + + /* Set the return values. */ + if (buffers_updated) { + *buffers_updated = bufs_updated; + } + if (uploader_flushed) { + *uploader_flushed = upload_flushed; + } +} + +void u_vbuf_mgr_draw_end(struct u_vbuf_mgr *mgrb) +{ + struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb; + + if (mgr->fallback_ve) { + u_vbuf_translate_end(mgr); + } +} + +void u_vbuf_mgr_flush_uploader(struct u_vbuf_mgr *mgrb) +{ + struct u_vbuf_mgr_priv *mgr = (struct u_vbuf_mgr_priv*)mgrb; + + u_upload_flush(mgr->uploader); +} diff --git a/src/gallium/auxiliary/util/u_vbuf_mgr.h b/src/gallium/auxiliary/util/u_vbuf_mgr.h new file mode 100644 index 00000000000..5eb59385f9b --- /dev/null +++ b/src/gallium/auxiliary/util/u_vbuf_mgr.h @@ -0,0 +1,113 @@ +/************************************************************************** + * + * Copyright 2011 Marek Olšák <[email protected]> + * 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. + * + **************************************************************************/ + +#ifndef U_VBUF_MGR_H +#define U_VBUF_MGR_H + +/* This module builds upon u_upload_mgr and translate_cache and takes care of + * user buffer uploads and vertex format fallbacks. It's designed + * for the drivers which don't always use the Draw module. (e.g. for HWTCL) + */ + +#include "pipe/p_context.h" +#include "pipe/p_state.h" +#include "util/u_transfer.h" + +/* The manager. + * This structure should also be used to access vertex buffers + * from a driver. */ +struct u_vbuf_mgr { + /* This is what was set in set_vertex_buffers. + * May contain user buffers. */ + struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS]; + unsigned nr_vertex_buffers; + + /* Contains only real vertex buffers. + * Hardware drivers should use real_vertex_buffers[i] + * instead of vertex_buffers[i].buffer. */ + struct pipe_resource *real_vertex_buffer[PIPE_MAX_ATTRIBS]; + int nr_real_vertex_buffers; + + /* Precomputed max_index for hardware vertex buffers. */ + int max_index; +}; + +struct u_vbuf_resource { + struct u_resource b; + uint8_t *user_ptr; +}; + +/* Opaque type containing information about vertex elements for the manager. */ +struct u_vbuf_mgr_elements; + +enum u_fetch_alignment { + U_VERTEX_FETCH_BYTE_ALIGNED, + U_VERTEX_FETCH_DWORD_ALIGNED +}; + + +struct u_vbuf_mgr * +u_vbuf_mgr_create(struct pipe_context *pipe, + unsigned upload_buffer_size, + unsigned upload_buffer_alignment, + enum u_fetch_alignment fetch_alignment); + +void u_vbuf_mgr_destroy(struct u_vbuf_mgr *mgr); + +struct u_vbuf_mgr_elements * +u_vbuf_mgr_create_vertex_elements(struct u_vbuf_mgr *mgr, + unsigned count, + const struct pipe_vertex_element *attrs, + struct pipe_vertex_element *native_attrs); + +void u_vbuf_mgr_bind_vertex_elements(struct u_vbuf_mgr *mgr, + void *cso, + struct u_vbuf_mgr_elements *ve); + +void u_vbuf_mgr_destroy_vertex_elements(struct u_vbuf_mgr *mgr, + struct u_vbuf_mgr_elements *ve); + +void u_vbuf_mgr_set_vertex_buffers(struct u_vbuf_mgr *mgr, + unsigned count, + const struct pipe_vertex_buffer *bufs); + +void u_vbuf_mgr_draw_begin(struct u_vbuf_mgr *mgr, + const struct pipe_draw_info *info, + boolean *buffers_updated, + boolean *uploader_flushed); + +void u_vbuf_mgr_draw_end(struct u_vbuf_mgr *mgr); + +void u_vbuf_mgr_flush_uploader(struct u_vbuf_mgr *mgr); + + +static INLINE struct u_vbuf_resource *u_vbuf_resource(struct pipe_resource *r) +{ + return (struct u_vbuf_resource*)r; +} + +#endif |