static enum pipe_error
emit_consts_vgpu10(struct svga_context *svga, unsigned shader)
{
enum pipe_error ret;
unsigned dirty_constbufs;
unsigned enabled_constbufs;
/* Emit 0th constant buffer (with extra constants) */
ret = emit_constbuf_vgpu10(svga, shader);
if (ret != PIPE_OK) {
return ret;
}
enabled_constbufs = svga->state.hw_draw.enabled_constbufs[shader] | 1u;
/* Emit other constant buffers (UBOs) */
dirty_constbufs = svga->state.dirty_constbufs[shader] & ~1u;
while (dirty_constbufs) {
unsigned index = u_bit_scan(&dirty_constbufs);
unsigned offset = svga->curr.constbufs[shader][index].buffer_offset;
unsigned size = svga->curr.constbufs[shader][index].buffer_size;
struct svga_buffer *buffer =
svga_buffer(svga->curr.constbufs[shader][index].buffer);
struct svga_winsys_surface *handle;
if (buffer) {
handle = svga_buffer_handle(svga, &buffer->b.b);
enabled_constbufs |= 1 << index;
}
else {
handle = NULL;
enabled_constbufs &= ~(1 << index);
assert(offset == 0);
assert(size == 0);
}
assert(size % 16 == 0);
ret = SVGA3D_vgpu10_SetSingleConstantBuffer(svga->swc,
index,
svga_shader_type(shader),
handle,
offset,
size);
if (ret != PIPE_OK)
return ret;
}
svga->state.hw_draw.enabled_constbufs[shader] = enabled_constbufs;
svga->state.dirty_constbufs[shader] = 0;
return ret;
}
static enum pipe_error
validate_constant_buffers(struct svga_context *svga)
{
unsigned shader;
assert(svga_have_vgpu10(svga));
for (shader = PIPE_SHADER_VERTEX; shader <= PIPE_SHADER_GEOMETRY; shader++) {
enum pipe_error ret;
struct svga_buffer *buffer;
struct svga_winsys_surface *handle;
unsigned enabled_constbufs;
/* Rebind the default constant buffer if needed */
if (svga->rebind.flags.constbufs) {
buffer = svga_buffer(svga->state.hw_draw.constbuf[shader]);
if (buffer) {
ret = svga->swc->resource_rebind(svga->swc,
buffer->handle,
NULL,
SVGA_RELOC_READ);
if (ret != PIPE_OK)
return ret;
}
}
/*
* Reference other bound constant buffers to ensure pending updates are
* noticed by the device.
*/
enabled_constbufs = svga->state.hw_draw.enabled_constbufs[shader] & ~1u;
while (enabled_constbufs) {
unsigned i = u_bit_scan(&enabled_constbufs);
buffer = svga_buffer(svga->curr.constbufs[shader][i].buffer);
if (buffer) {
handle = svga_buffer_handle(svga, &buffer->b.b);
if (svga->rebind.flags.constbufs) {
ret = svga->swc->resource_rebind(svga->swc,
handle,
NULL,
SVGA_RELOC_READ);
if (ret != PIPE_OK)
return ret;
}
}
}
}
svga->rebind.flags.constbufs = FALSE;
return PIPE_OK;
}
static enum pipe_error
draw_vgpu10(struct svga_hwtnl *hwtnl,
const SVGA3dPrimitiveRange *range,
unsigned vcount,
unsigned min_index,
unsigned max_index, struct pipe_resource *ib,
unsigned start_instance, unsigned instance_count)
{
struct svga_context *svga = hwtnl->svga;
struct svga_winsys_surface *vb_handle[SVGA3D_INPUTREG_MAX];
struct svga_winsys_surface *ib_handle;
const unsigned vbuf_count = hwtnl->cmd.vbuf_count;
enum pipe_error ret;
unsigned i;
assert(svga_have_vgpu10(svga));
assert(hwtnl->cmd.prim_count == 0);
/* We need to reemit all the current resource bindings along with the Draw
* command to be sure that the referenced resources are available for the
* Draw command, just in case the surfaces associated with the resources
* are paged out.
*/
if (svga->rebind.val) {
ret = svga_rebind_framebuffer_bindings(svga);
if (ret != PIPE_OK)
return ret;
ret = svga_rebind_shaders(svga);
if (ret != PIPE_OK)
return ret;
}
ret = validate_sampler_resources(svga);
if (ret != PIPE_OK)
return ret;
ret = validate_constant_buffers(svga);
if (ret != PIPE_OK)
return ret;
/* Get handle for each referenced vertex buffer */
for (i = 0; i < vbuf_count; i++) {
struct svga_buffer *sbuf = svga_buffer(hwtnl->cmd.vbufs[i].buffer);
if (sbuf) {
assert(sbuf->key.flags & SVGA3D_SURFACE_BIND_VERTEX_BUFFER);
vb_handle[i] = svga_buffer_handle(svga, &sbuf->b.b);
if (vb_handle[i] == NULL)
return PIPE_ERROR_OUT_OF_MEMORY;
}
else {
vb_handle[i] = NULL;
}
}
/* Get handles for the index buffers */
if (ib) {
struct svga_buffer *sbuf = svga_buffer(ib);
assert(sbuf->key.flags & SVGA3D_SURFACE_BIND_INDEX_BUFFER);
(void) sbuf; /* silence unused var warning */
ib_handle = svga_buffer_handle(svga, ib);
if (ib_handle == NULL)
return PIPE_ERROR_OUT_OF_MEMORY;
}
else {
ib_handle = NULL;
}
/* setup vertex attribute input layout */
if (svga->state.hw_draw.layout_id != hwtnl->cmd.vdecl_layout_id) {
ret = SVGA3D_vgpu10_SetInputLayout(svga->swc,
hwtnl->cmd.vdecl_layout_id);
if (ret != PIPE_OK)
return ret;
svga->state.hw_draw.layout_id = hwtnl->cmd.vdecl_layout_id;
}
/* setup vertex buffers */
{
SVGA3dVertexBuffer buffers[PIPE_MAX_ATTRIBS];
for (i = 0; i < vbuf_count; i++) {
buffers[i].stride = hwtnl->cmd.vbufs[i].stride;
buffers[i].offset = hwtnl->cmd.vbufs[i].buffer_offset;
}
if (vbuf_count > 0) {
ret = SVGA3D_vgpu10_SetVertexBuffers(svga->swc, vbuf_count,
0, /* startBuffer */
buffers, vb_handle);
if (ret != PIPE_OK)
return ret;
}
}
/* Set primitive type (line, tri, etc) */
if (svga->state.hw_draw.topology != range->primType) {
ret = SVGA3D_vgpu10_SetTopology(svga->swc, range->primType);
if (ret != PIPE_OK)
return ret;
svga->state.hw_draw.topology = range->primType;
}
if (ib_handle) {
/* indexed drawing */
SVGA3dSurfaceFormat indexFormat = xlate_index_format(range->indexWidth);
/* setup index buffer */
ret = SVGA3D_vgpu10_SetIndexBuffer(svga->swc, ib_handle,
indexFormat,
range->indexArray.offset);
if (ret != PIPE_OK)
return ret;
if (instance_count > 1) {
ret = SVGA3D_vgpu10_DrawIndexedInstanced(svga->swc,
vcount,
instance_count,
0, /* startIndexLocation */
range->indexBias,
start_instance);
if (ret != PIPE_OK)
return ret;
}
else {
/* non-instanced drawing */
ret = SVGA3D_vgpu10_DrawIndexed(svga->swc,
vcount,
0, /* startIndexLocation */
range->indexBias);
if (ret != PIPE_OK)
return ret;
}
}
else {
/* non-indexed drawing */
if (instance_count > 1) {
ret = SVGA3D_vgpu10_DrawInstanced(svga->swc,
vcount,
instance_count,
range->indexBias,
start_instance);
if (ret != PIPE_OK)
return ret;
}
else {
/* non-instanced */
ret = SVGA3D_vgpu10_Draw(svga->swc,
vcount,
range->indexBias);
if (ret != PIPE_OK)
return ret;
}
}
hwtnl->cmd.prim_count = 0;
return PIPE_OK;
}
static enum pipe_error
validate_sampler_resources(struct svga_context *svga)
{
unsigned shader;
assert(svga_have_vgpu10(svga));
for (shader = PIPE_SHADER_VERTEX; shader <= PIPE_SHADER_GEOMETRY; shader++) {
unsigned count = svga->curr.num_sampler_views[shader];
unsigned i;
struct svga_winsys_surface *surfaces[PIPE_MAX_SAMPLERS];
enum pipe_error ret;
/*
* Reference bound sampler resources to ensure pending updates are
* noticed by the device.
*/
for (i = 0; i < count; i++) {
struct svga_pipe_sampler_view *sv =
svga_pipe_sampler_view(svga->curr.sampler_views[shader][i]);
if (sv) {
if (sv->base.texture->target == PIPE_BUFFER) {
surfaces[i] = svga_buffer_handle(svga, sv->base.texture);
}
else {
surfaces[i] = svga_texture(sv->base.texture)->handle;
}
}
else {
surfaces[i] = NULL;
}
}
if (shader == PIPE_SHADER_FRAGMENT &&
svga->curr.rast->templ.poly_stipple_enable) {
const unsigned unit = svga->state.hw_draw.fs->pstipple_sampler_unit;
struct svga_pipe_sampler_view *sv =
svga->polygon_stipple.sampler_view;
assert(sv);
surfaces[unit] = svga_texture(sv->base.texture)->handle;
count = MAX2(count, unit+1);
}
/* rebind the shader resources if needed */
if (svga->rebind.flags.texture_samplers) {
for (i = 0; i < count; i++) {
if (surfaces[i]) {
ret = svga->swc->resource_rebind(svga->swc,
surfaces[i],
NULL,
SVGA_RELOC_READ);
if (ret != PIPE_OK)
return ret;
}
}
}
}
svga->rebind.flags.texture_samplers = FALSE;
return PIPE_OK;
}
static enum pipe_error
draw_vgpu9(struct svga_hwtnl *hwtnl)
{
struct svga_winsys_context *swc = hwtnl->cmd.swc;
struct svga_context *svga = hwtnl->svga;
enum pipe_error ret;
struct svga_winsys_surface *vb_handle[SVGA3D_INPUTREG_MAX];
struct svga_winsys_surface *ib_handle[QSZ];
struct svga_winsys_surface *handle;
SVGA3dVertexDecl *vdecl;
SVGA3dPrimitiveRange *prim;
unsigned i;
for (i = 0; i < hwtnl->cmd.vdecl_count; i++) {
unsigned j = hwtnl->cmd.vdecl_buffer_index[i];
handle = svga_buffer_handle(svga, hwtnl->cmd.vbufs[j].buffer);
if (handle == NULL)
return PIPE_ERROR_OUT_OF_MEMORY;
vb_handle[i] = handle;
}
for (i = 0; i < hwtnl->cmd.prim_count; i++) {
if (hwtnl->cmd.prim_ib[i]) {
handle = svga_buffer_handle(svga, hwtnl->cmd.prim_ib[i]);
if (handle == NULL)
return PIPE_ERROR_OUT_OF_MEMORY;
}
else
handle = NULL;
ib_handle[i] = handle;
}
if (svga->rebind.flags.rendertargets) {
ret = svga_reemit_framebuffer_bindings(svga);
if (ret != PIPE_OK) {
return ret;
}
}
if (svga->rebind.flags.texture_samplers) {
ret = svga_reemit_tss_bindings(svga);
if (ret != PIPE_OK) {
return ret;
}
}
if (svga->rebind.flags.vs) {
ret = svga_reemit_vs_bindings(svga);
if (ret != PIPE_OK) {
return ret;
}
}
if (svga->rebind.flags.fs) {
ret = svga_reemit_fs_bindings(svga);
if (ret != PIPE_OK) {
return ret;
}
}
SVGA_DBG(DEBUG_DMA, "draw to sid %p, %d prims\n",
svga->curr.framebuffer.cbufs[0] ?
svga_surface(svga->curr.framebuffer.cbufs[0])->handle : NULL,
hwtnl->cmd.prim_count);
ret = SVGA3D_BeginDrawPrimitives(swc,
&vdecl,
hwtnl->cmd.vdecl_count,
&prim, hwtnl->cmd.prim_count);
if (ret != PIPE_OK)
return ret;
memcpy(vdecl,
hwtnl->cmd.vdecl,
hwtnl->cmd.vdecl_count * sizeof hwtnl->cmd.vdecl[0]);
for (i = 0; i < hwtnl->cmd.vdecl_count; i++) {
/* check for 4-byte alignment */
assert(vdecl[i].array.offset % 4 == 0);
assert(vdecl[i].array.stride % 4 == 0);
/* Given rangeHint is considered to be relative to indexBias, and
* indexBias varies per primitive, we cannot accurately supply an
* rangeHint when emitting more than one primitive per draw command.
*/
if (hwtnl->cmd.prim_count == 1) {
vdecl[i].rangeHint.first = hwtnl->cmd.min_index[0];
vdecl[i].rangeHint.last = hwtnl->cmd.max_index[0] + 1;
}
else {
vdecl[i].rangeHint.first = 0;
vdecl[i].rangeHint.last = 0;
}
swc->surface_relocation(swc,
&vdecl[i].array.surfaceId,
NULL, vb_handle[i], SVGA_RELOC_READ);
}
memcpy(prim,
hwtnl->cmd.prim, hwtnl->cmd.prim_count * sizeof hwtnl->cmd.prim[0]);
for (i = 0; i < hwtnl->cmd.prim_count; i++) {
swc->surface_relocation(swc,
&prim[i].indexArray.surfaceId,
NULL, ib_handle[i], SVGA_RELOC_READ);
pipe_resource_reference(&hwtnl->cmd.prim_ib[i], NULL);
}
SVGA_FIFOCommitAll(swc);
hwtnl->cmd.prim_count = 0;
return PIPE_OK;
}
/**
* Create a buffer transfer.
*
* Unlike texture DMAs (which are written immediately to the command buffer and
* therefore inherently serialized with other context operations), for buffers
* we try to coalesce multiple range mappings (i.e, multiple calls to this
* function) into a single DMA command, for better efficiency in command
* processing. This means we need to exercise extra care here to ensure that
* the end result is exactly the same as if one DMA was used for every mapped
* range.
*/
static void *
svga_buffer_transfer_map(struct pipe_context *pipe,
struct pipe_resource *resource,
unsigned level,
unsigned usage,
const struct pipe_box *box,
struct pipe_transfer **ptransfer)
{
struct svga_context *svga = svga_context(pipe);
struct svga_screen *ss = svga_screen(pipe->screen);
struct svga_buffer *sbuf = svga_buffer(resource);
struct pipe_transfer *transfer;
uint8_t *map = NULL;
int64_t begin = svga_get_time(svga);
SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_BUFFERTRANSFERMAP);
assert(box->y == 0);
assert(box->z == 0);
assert(box->height == 1);
assert(box->depth == 1);
transfer = MALLOC_STRUCT(pipe_transfer);
if (!transfer) {
goto done;
}
transfer->resource = resource;
transfer->level = level;
transfer->usage = usage;
transfer->box = *box;
transfer->stride = 0;
transfer->layer_stride = 0;
if (usage & PIPE_TRANSFER_WRITE) {
/* If we write to the buffer for any reason, free any saved translated
* vertices.
*/
pipe_resource_reference(&sbuf->translated_indices.buffer, NULL);
}
if ((usage & PIPE_TRANSFER_READ) && sbuf->dirty) {
enum pipe_error ret;
/* Host-side buffers can only be dirtied with vgpu10 features
* (streamout and buffer copy).
*/
assert(svga_have_vgpu10(svga));
if (!sbuf->user) {
(void) svga_buffer_handle(svga, resource, sbuf->bind_flags);
}
if (sbuf->dma.pending) {
svga_buffer_upload_flush(svga, sbuf);
svga_context_finish(svga);
}
assert(sbuf->handle);
ret = SVGA3D_vgpu10_ReadbackSubResource(svga->swc, sbuf->handle, 0);
if (ret != PIPE_OK) {
svga_context_flush(svga, NULL);
ret = SVGA3D_vgpu10_ReadbackSubResource(svga->swc, sbuf->handle, 0);
assert(ret == PIPE_OK);
}
svga->hud.num_readbacks++;
svga_context_finish(svga);
sbuf->dirty = FALSE;
}
if (usage & PIPE_TRANSFER_WRITE) {
if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
/*
* Flush any pending primitives, finish writing any pending DMA
* commands, and tell the host to discard the buffer contents on
* the next DMA operation.
*/
svga_hwtnl_flush_buffer(svga, resource);
if (sbuf->dma.pending) {
svga_buffer_upload_flush(svga, sbuf);
/*
* Instead of flushing the context command buffer, simply discard
* the current hwbuf, and start a new one.
* With GB objects, the map operation takes care of this
* if passed the PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE flag,
* and the old backing store is busy.
*/
if (!svga_have_gb_objects(svga))
svga_buffer_destroy_hw_storage(ss, sbuf);
}
sbuf->map.num_ranges = 0;
sbuf->dma.flags.discard = TRUE;
}
if (usage & PIPE_TRANSFER_UNSYNCHRONIZED) {
if (!sbuf->map.num_ranges) {
/*
* No pending ranges to upload so far, so we can tell the host to
* not synchronize on the next DMA command.
*/
sbuf->dma.flags.unsynchronized = TRUE;
}
} else {
/*
* Synchronizing, so flush any pending primitives, finish writing any
* pending DMA command, and ensure the next DMA will be done in order.
*/
svga_hwtnl_flush_buffer(svga, resource);
if (sbuf->dma.pending) {
svga_buffer_upload_flush(svga, sbuf);
if (svga_buffer_has_hw_storage(sbuf)) {
/*
* We have a pending DMA upload from a hardware buffer, therefore
* we need to ensure that the host finishes processing that DMA
* command before the state tracker can start overwriting the
* hardware buffer.
*
* XXX: This could be avoided by tying the hardware buffer to
* the transfer (just as done with textures), which would allow
* overlapping DMAs commands to be queued on the same context
* buffer. However, due to the likelihood of software vertex
* processing, it is more convenient to hold on to the hardware
* buffer, allowing to quickly access the contents from the CPU
* without having to do a DMA download from the host.
*/
if (usage & PIPE_TRANSFER_DONTBLOCK) {
/*
* Flushing the command buffer here will most likely cause
* the map of the hwbuf below to block, so preemptively
* return NULL here if DONTBLOCK is set to prevent unnecessary
* command buffer flushes.
*/
FREE(transfer);
goto done;
}
svga_context_flush(svga, NULL);
}
}
sbuf->dma.flags.unsynchronized = FALSE;
}
}
if (!sbuf->swbuf && !svga_buffer_has_hw_storage(sbuf)) {
if (svga_buffer_create_hw_storage(ss, sbuf, sbuf->bind_flags) != PIPE_OK) {
/*
* We can't create a hardware buffer big enough, so create a malloc
* buffer instead.
*/
if (0) {
debug_printf("%s: failed to allocate %u KB of DMA, "
"splitting DMA transfers\n",
__FUNCTION__,
(sbuf->b.b.width0 + 1023)/1024);
}
sbuf->swbuf = align_malloc(sbuf->b.b.width0, 16);
if (!sbuf->swbuf) {
FREE(transfer);
goto done;
}
}
}
if (sbuf->swbuf) {
/* User/malloc buffer */
map = sbuf->swbuf;
}
else if (svga_buffer_has_hw_storage(sbuf)) {
boolean retry;
map = svga_buffer_hw_storage_map(svga, sbuf, transfer->usage, &retry);
if (map == NULL && retry) {
/*
* At this point, svga_buffer_get_transfer() has already
* hit the DISCARD_WHOLE_RESOURCE path and flushed HWTNL
* for this buffer.
*/
svga_context_flush(svga, NULL);
map = svga_buffer_hw_storage_map(svga, sbuf, transfer->usage, &retry);
}
}
else {
map = NULL;
}
if (map) {
++sbuf->map.count;
map += transfer->box.x;
*ptransfer = transfer;
} else {
FREE(transfer);
}
svga->hud.map_buffer_time += (svga_get_time(svga) - begin);
done:
SVGA_STATS_TIME_POP(svga_sws(svga));
return map;
}
static void
svga_set_stream_output_targets(struct pipe_context *pipe,
unsigned num_targets,
struct pipe_stream_output_target **targets,
const unsigned *offsets)
{
struct svga_context *svga = svga_context(pipe);
struct SVGA3dSoTarget soBindings[SVGA3D_DX_MAX_SOTARGETS];
enum pipe_error ret;
unsigned i;
unsigned num_so_targets;
SVGA_DBG(DEBUG_STREAMOUT, "%s num_targets=%d\n", __FUNCTION__,
num_targets);
assert(svga_have_vgpu10(svga));
/* Mark the streamout buffers as dirty so that we'll issue readbacks
* before mapping.
*/
for (i = 0; i < svga->num_so_targets; i++) {
struct svga_buffer *sbuf = svga_buffer(svga->so_targets[i]->buffer);
sbuf->dirty = TRUE;
}
assert(num_targets <= SVGA3D_DX_MAX_SOTARGETS);
for (i = 0; i < num_targets; i++) {
struct svga_stream_output_target *sot
= svga_stream_output_target(targets[i]);
struct svga_buffer *sbuf = svga_buffer(sot->base.buffer);
unsigned size;
assert(sbuf->key.flags & SVGA3D_SURFACE_BIND_STREAM_OUTPUT);
(void) sbuf;
svga->so_surfaces[i] = svga_buffer_handle(svga, sot->base.buffer);
svga->so_targets[i] = &sot->base;
soBindings[i].offset = sot->base.buffer_offset;
/* The size cannot extend beyond the end of the buffer. Clamp it. */
size = MIN2(sot->base.buffer_size,
sot->base.buffer->width0 - sot->base.buffer_offset);
soBindings[i].sizeInBytes = size;
}
/* unbind any previously bound stream output buffers */
for (; i < svga->num_so_targets; i++) {
svga->so_surfaces[i] = NULL;
svga->so_targets[i] = NULL;
}
num_so_targets = MAX2(svga->num_so_targets, num_targets);
ret = SVGA3D_vgpu10_SetSOTargets(svga->swc, num_so_targets,
soBindings, svga->so_surfaces);
if (ret != PIPE_OK) {
svga_context_flush(svga, NULL);
ret = SVGA3D_vgpu10_SetSOTargets(svga->swc, num_so_targets,
soBindings, svga->so_surfaces);
}
svga->num_so_targets = num_targets;
}
static enum pipe_error
emit_consts_vgpu10(struct svga_context *svga, unsigned shader)
{
enum pipe_error ret;
unsigned dirty_constbufs;
unsigned enabled_constbufs;
/* Emit 0th constant buffer (with extra constants) */
ret = emit_constbuf_vgpu10(svga, shader);
if (ret != PIPE_OK) {
return ret;
}
enabled_constbufs = svga->state.hw_draw.enabled_constbufs[shader] | 1u;
/* Emit other constant buffers (UBOs) */
dirty_constbufs = svga->state.dirty_constbufs[shader] & ~1u;
while (dirty_constbufs) {
unsigned index = u_bit_scan(&dirty_constbufs);
unsigned offset = svga->curr.constbufs[shader][index].buffer_offset;
unsigned size = svga->curr.constbufs[shader][index].buffer_size;
struct svga_buffer *buffer =
svga_buffer(svga->curr.constbufs[shader][index].buffer);
struct svga_winsys_surface *handle;
if (buffer) {
handle = svga_buffer_handle(svga, &buffer->b.b);
enabled_constbufs |= 1 << index;
}
else {
handle = NULL;
enabled_constbufs &= ~(1 << index);
assert(offset == 0);
assert(size == 0);
}
if (size % 16 != 0) {
/* GL's buffer range sizes can be any number of bytes but the
* SVGA3D device requires a multiple of 16 bytes.
*/
const unsigned total_size = buffer->b.b.width0;
if (offset + align(size, 16) <= total_size) {
/* round up size to multiple of 16 */
size = align(size, 16);
}
else {
/* round down to mulitple of 16 (this may cause rendering problems
* but should avoid a device error).
*/
size &= ~15;
}
}
assert(size % 16 == 0);
ret = SVGA3D_vgpu10_SetSingleConstantBuffer(svga->swc,
index,
svga_shader_type(shader),
handle,
offset,
size);
if (ret != PIPE_OK)
return ret;
svga->hud.num_const_buf_updates++;
}
svga->state.hw_draw.enabled_constbufs[shader] = enabled_constbufs;
svga->state.dirty_constbufs[shader] = 0;
return ret;
}
static enum pipe_error
emit_constbuf_vgpu10(struct svga_context *svga, unsigned shader)
{
const struct pipe_constant_buffer *cbuf;
struct pipe_resource *dst_buffer = NULL;
enum pipe_error ret = PIPE_OK;
struct pipe_transfer *src_transfer;
struct svga_winsys_surface *dst_handle;
float extras[MAX_EXTRA_CONSTS][4];
unsigned extra_count, extra_size, extra_offset;
unsigned new_buf_size;
void *src_map = NULL, *dst_map;
unsigned offset;
const struct svga_shader_variant *variant;
unsigned alloc_buf_size;
assert(shader == PIPE_SHADER_VERTEX ||
shader == PIPE_SHADER_GEOMETRY ||
shader == PIPE_SHADER_FRAGMENT);
cbuf = &svga->curr.constbufs[shader][0];
switch (shader) {
case PIPE_SHADER_VERTEX:
variant = svga->state.hw_draw.vs;
extra_count = svga_get_extra_vs_constants(svga, (float *) extras);
break;
case PIPE_SHADER_FRAGMENT:
variant = svga->state.hw_draw.fs;
extra_count = svga_get_extra_fs_constants(svga, (float *) extras);
break;
case PIPE_SHADER_GEOMETRY:
variant = svga->state.hw_draw.gs;
extra_count = svga_get_extra_gs_constants(svga, (float *) extras);
break;
default:
assert(!"Unexpected shader type");
/* Don't return an error code since we don't want to keep re-trying
* this function and getting stuck in an infinite loop.
*/
return PIPE_OK;
}
assert(variant);
/* Compute extra constants size and offset in bytes */
extra_size = extra_count * 4 * sizeof(float);
extra_offset = 4 * sizeof(float) * variant->extra_const_start;
if (cbuf->buffer_size + extra_size == 0)
return PIPE_OK; /* nothing to do */
/* Typically, the cbuf->buffer here is a user-space buffer so mapping
* it is really cheap. If we ever get real HW buffers for constants
* we should void mapping and instead use a ResourceCopy command.
*/
if (cbuf->buffer_size > 0) {
src_map = pipe_buffer_map_range(&svga->pipe, cbuf->buffer,
cbuf->buffer_offset, cbuf->buffer_size,
PIPE_TRANSFER_READ, &src_transfer);
assert(src_map);
if (!src_map) {
return PIPE_ERROR_OUT_OF_MEMORY;
}
}
/* The new/dest buffer's size must be large enough to hold the original,
* user-specified constants, plus the extra constants.
* The size of the original constant buffer _should_ agree with what the
* shader is expecting, but it might not (it's not enforced anywhere by
* gallium).
*/
new_buf_size = MAX2(cbuf->buffer_size, extra_offset) + extra_size;
/* According to the DX10 spec, the constant buffer size must be
* in multiples of 16.
*/
new_buf_size = align(new_buf_size, 16);
/* Constant buffer size in the upload buffer must be in multiples of 256.
* In order to maximize the chance of merging the upload buffer chunks
* when svga_buffer_add_range() is called,
* the allocate buffer size needs to be in multiples of 256 as well.
* Otherwise, since there is gap between each dirty range of the upload buffer,
* each dirty range will end up in its own UPDATE_GB_IMAGE command.
*/
alloc_buf_size = align(new_buf_size, CONST0_UPLOAD_ALIGNMENT);
u_upload_alloc(svga->const0_upload, 0, alloc_buf_size,
CONST0_UPLOAD_ALIGNMENT, &offset,
&dst_buffer, &dst_map);
if (!dst_map) {
if (src_map)
pipe_buffer_unmap(&svga->pipe, src_transfer);
return PIPE_ERROR_OUT_OF_MEMORY;
}
if (src_map) {
memcpy(dst_map, src_map, cbuf->buffer_size);
pipe_buffer_unmap(&svga->pipe, src_transfer);
}
if (extra_size) {
assert(extra_offset + extra_size <= new_buf_size);
memcpy((char *) dst_map + extra_offset, extras, extra_size);
}
u_upload_unmap(svga->const0_upload);
/* Issue the SetSingleConstantBuffer command */
dst_handle = svga_buffer_handle(svga, dst_buffer);
if (!dst_handle) {
pipe_resource_reference(&dst_buffer, NULL);
return PIPE_ERROR_OUT_OF_MEMORY;
}
assert(new_buf_size % 16 == 0);
ret = SVGA3D_vgpu10_SetSingleConstantBuffer(svga->swc,
0, /* index */
svga_shader_type(shader),
dst_handle,
offset,
new_buf_size);
if (ret != PIPE_OK) {
pipe_resource_reference(&dst_buffer, NULL);
return ret;
}
/* Save this const buffer until it's replaced in the future.
* Otherwise, all references to the buffer will go away after the
* command buffer is submitted, it'll get recycled and we will have
* incorrect constant buffer bindings.
*/
pipe_resource_reference(&svga->state.hw_draw.constbuf[shader], dst_buffer);
svga->state.hw_draw.default_constbuf_size[shader] = new_buf_size;
pipe_resource_reference(&dst_buffer, NULL);
svga->hud.num_const_buf_updates++;
return ret;
}
static enum pipe_error
draw_vgpu10(struct svga_hwtnl *hwtnl,
const SVGA3dPrimitiveRange *range,
unsigned vcount,
unsigned min_index,
unsigned max_index, struct pipe_resource *ib,
unsigned start_instance, unsigned instance_count)
{
struct svga_context *svga = hwtnl->svga;
struct pipe_resource *vbuffers[SVGA3D_INPUTREG_MAX];
struct svga_winsys_surface *vbuffer_handles[SVGA3D_INPUTREG_MAX];
struct svga_winsys_surface *ib_handle;
const unsigned vbuf_count = hwtnl->cmd.vbuf_count;
int last_vbuf = -1;
enum pipe_error ret;
unsigned i;
assert(svga_have_vgpu10(svga));
assert(hwtnl->cmd.prim_count == 0);
/* We need to reemit all the current resource bindings along with the Draw
* command to be sure that the referenced resources are available for the
* Draw command, just in case the surfaces associated with the resources
* are paged out.
*/
if (svga->rebind.val) {
ret = svga_rebind_framebuffer_bindings(svga);
if (ret != PIPE_OK)
return ret;
ret = svga_rebind_shaders(svga);
if (ret != PIPE_OK)
return ret;
/* Rebind stream output targets */
ret = svga_rebind_stream_output_targets(svga);
if (ret != PIPE_OK)
return ret;
/* No need to explicitly rebind index buffer and vertex buffers here.
* Even if the same index buffer or vertex buffers are referenced for this
* draw and we skip emitting the redundant set command, we will still
* reference the associated resources.
*/
}
ret = validate_sampler_resources(svga);
if (ret != PIPE_OK)
return ret;
ret = validate_constant_buffers(svga);
if (ret != PIPE_OK)
return ret;
/* Get handle for each referenced vertex buffer */
for (i = 0; i < vbuf_count; i++) {
struct svga_buffer *sbuf = svga_buffer(hwtnl->cmd.vbufs[i].buffer);
if (sbuf) {
assert(sbuf->key.flags & SVGA3D_SURFACE_BIND_VERTEX_BUFFER);
vbuffer_handles[i] = svga_buffer_handle(svga, &sbuf->b.b);
if (vbuffer_handles[i] == NULL)
return PIPE_ERROR_OUT_OF_MEMORY;
vbuffers[i] = &sbuf->b.b;
last_vbuf = i;
}
else {
vbuffers[i] = NULL;
vbuffer_handles[i] = NULL;
}
}
for (; i < svga->state.hw_draw.num_vbuffers; i++) {
vbuffers[i] = NULL;
vbuffer_handles[i] = NULL;
}
/* Get handle for the index buffer */
if (ib) {
struct svga_buffer *sbuf = svga_buffer(ib);
assert(sbuf->key.flags & SVGA3D_SURFACE_BIND_INDEX_BUFFER);
(void) sbuf; /* silence unused var warning */
ib_handle = svga_buffer_handle(svga, ib);
if (!ib_handle)
return PIPE_ERROR_OUT_OF_MEMORY;
}
else {
ib_handle = NULL;
}
/* setup vertex attribute input layout */
if (svga->state.hw_draw.layout_id != hwtnl->cmd.vdecl_layout_id) {
ret = SVGA3D_vgpu10_SetInputLayout(svga->swc,
hwtnl->cmd.vdecl_layout_id);
if (ret != PIPE_OK)
return ret;
svga->state.hw_draw.layout_id = hwtnl->cmd.vdecl_layout_id;
}
/* setup vertex buffers */
{
SVGA3dVertexBuffer vbuffer_attrs[PIPE_MAX_ATTRIBS];
for (i = 0; i < vbuf_count; i++) {
vbuffer_attrs[i].stride = hwtnl->cmd.vbufs[i].stride;
vbuffer_attrs[i].offset = hwtnl->cmd.vbufs[i].buffer_offset;
vbuffer_attrs[i].sid = 0;
}
/* If we haven't yet emitted a drawing command or if any
* vertex buffer state is changing, issue that state now.
*/
if (((hwtnl->cmd.swc->hints & SVGA_HINT_FLAG_CAN_PRE_FLUSH) == 0) ||
vbuf_count != svga->state.hw_draw.num_vbuffers ||
memcmp(vbuffer_attrs, svga->state.hw_draw.vbuffer_attrs,
vbuf_count * sizeof(vbuffer_attrs[0])) ||
memcmp(vbuffers, svga->state.hw_draw.vbuffers,
vbuf_count * sizeof(vbuffers[0]))) {
unsigned num_vbuffers;
/* get the max of the current bound vertex buffers count and
* the to-be-bound vertex buffers count, so as to unbind
* the unused vertex buffers.
*/
num_vbuffers = MAX2(vbuf_count, svga->state.hw_draw.num_vbuffers);
if (num_vbuffers > 0) {
ret = SVGA3D_vgpu10_SetVertexBuffers(svga->swc, num_vbuffers,
0, /* startBuffer */
vbuffer_attrs,
vbuffer_handles);
if (ret != PIPE_OK)
return ret;
/* save the number of vertex buffers sent to the device, not
* including trailing unbound vertex buffers.
*/
svga->state.hw_draw.num_vbuffers = last_vbuf + 1;
memcpy(svga->state.hw_draw.vbuffer_attrs, vbuffer_attrs,
num_vbuffers * sizeof(vbuffer_attrs[0]));
for (i = 0; i < num_vbuffers; i++) {
pipe_resource_reference(&svga->state.hw_draw.vbuffers[i],
vbuffers[i]);
}
}
}
else {
/* Even though we can avoid emitting the redundant SetVertexBuffers
* command, we still need to reference the vertex buffers surfaces.
*/
for (i = 0; i < vbuf_count; i++) {
if (vbuffer_handles[i] && !last_command_was_draw(svga)) {
ret = svga->swc->resource_rebind(svga->swc, vbuffer_handles[i],
NULL, SVGA_RELOC_READ);
if (ret != PIPE_OK)
return ret;
}
}
}
}
/* Set primitive type (line, tri, etc) */
if (svga->state.hw_draw.topology != range->primType) {
ret = SVGA3D_vgpu10_SetTopology(svga->swc, range->primType);
if (ret != PIPE_OK)
return ret;
svga->state.hw_draw.topology = range->primType;
}
if (ib_handle) {
/* indexed drawing */
SVGA3dSurfaceFormat indexFormat = xlate_index_format(range->indexWidth);
/* setup index buffer */
if (ib != svga->state.hw_draw.ib ||
indexFormat != svga->state.hw_draw.ib_format ||
range->indexArray.offset != svga->state.hw_draw.ib_offset) {
assert(indexFormat != SVGA3D_FORMAT_INVALID);
ret = SVGA3D_vgpu10_SetIndexBuffer(svga->swc, ib_handle,
indexFormat,
range->indexArray.offset);
if (ret != PIPE_OK)
return ret;
pipe_resource_reference(&svga->state.hw_draw.ib, ib);
svga->state.hw_draw.ib_format = indexFormat;
svga->state.hw_draw.ib_offset = range->indexArray.offset;
}
else {
/* Even though we can avoid emitting the redundant SetIndexBuffer
* command, we still need to reference the index buffer surface.
*/
if (!last_command_was_draw(svga)) {
ret = svga->swc->resource_rebind(svga->swc, ib_handle,
NULL, SVGA_RELOC_READ);
if (ret != PIPE_OK)
return ret;
}
}
if (instance_count > 1) {
ret = SVGA3D_vgpu10_DrawIndexedInstanced(svga->swc,
vcount,
instance_count,
0, /* startIndexLocation */
range->indexBias,
start_instance);
if (ret != PIPE_OK)
return ret;
}
else {
/* non-instanced drawing */
ret = SVGA3D_vgpu10_DrawIndexed(svga->swc,
vcount,
0, /* startIndexLocation */
range->indexBias);
if (ret != PIPE_OK)
return ret;
}
}
else {
/* non-indexed drawing */
if (svga->state.hw_draw.ib_format != SVGA3D_FORMAT_INVALID ||
svga->state.hw_draw.ib != NULL) {
/* Unbind previously bound index buffer */
ret = SVGA3D_vgpu10_SetIndexBuffer(svga->swc, NULL,
SVGA3D_FORMAT_INVALID, 0);
if (ret != PIPE_OK)
return ret;
pipe_resource_reference(&svga->state.hw_draw.ib, NULL);
svga->state.hw_draw.ib_format = SVGA3D_FORMAT_INVALID;
}
assert(svga->state.hw_draw.ib == NULL);
if (instance_count > 1) {
ret = SVGA3D_vgpu10_DrawInstanced(svga->swc,
vcount,
instance_count,
range->indexBias,
start_instance);
if (ret != PIPE_OK)
return ret;
}
else {
/* non-instanced */
ret = SVGA3D_vgpu10_Draw(svga->swc,
vcount,
range->indexBias);
if (ret != PIPE_OK)
return ret;
}
}
hwtnl->cmd.prim_count = 0;
return PIPE_OK;
}
enum pipe_error
svga_hwtnl_flush( struct svga_hwtnl *hwtnl )
{
struct svga_winsys_context *swc = hwtnl->cmd.swc;
struct svga_context *svga = hwtnl->svga;
enum pipe_error ret;
if (hwtnl->cmd.prim_count) {
struct svga_winsys_surface *vb_handle[SVGA3D_INPUTREG_MAX];
struct svga_winsys_surface *ib_handle[QSZ];
struct svga_winsys_surface *handle;
SVGA3dVertexDecl *vdecl;
SVGA3dPrimitiveRange *prim;
unsigned i;
for (i = 0; i < hwtnl->cmd.vdecl_count; i++) {
handle = svga_buffer_handle(svga, hwtnl->cmd.vdecl_vb[i]);
if (handle == NULL)
return PIPE_ERROR_OUT_OF_MEMORY;
vb_handle[i] = handle;
}
for (i = 0; i < hwtnl->cmd.prim_count; i++) {
if (hwtnl->cmd.prim_ib[i]) {
handle = svga_buffer_handle(svga, hwtnl->cmd.prim_ib[i]);
if (handle == NULL)
return PIPE_ERROR_OUT_OF_MEMORY;
}
else
handle = NULL;
ib_handle[i] = handle;
}
SVGA_DBG(DEBUG_DMA, "draw to sid %p, %d prims\n",
svga->curr.framebuffer.cbufs[0] ?
svga_surface(svga->curr.framebuffer.cbufs[0])->handle : NULL,
hwtnl->cmd.prim_count);
ret = SVGA3D_BeginDrawPrimitives(swc,
&vdecl,
hwtnl->cmd.vdecl_count,
&prim,
hwtnl->cmd.prim_count);
if (ret != PIPE_OK)
return ret;
memcpy( vdecl,
hwtnl->cmd.vdecl,
hwtnl->cmd.vdecl_count * sizeof hwtnl->cmd.vdecl[0]);
for (i = 0; i < hwtnl->cmd.vdecl_count; i++) {
/* Given rangeHint is considered to be relative to indexBias, and
* indexBias varies per primitive, we cannot accurately supply an
* rangeHint when emitting more than one primitive per draw command.
*/
if (hwtnl->cmd.prim_count == 1) {
vdecl[i].rangeHint.first = hwtnl->cmd.min_index[0];
vdecl[i].rangeHint.last = hwtnl->cmd.max_index[0] + 1;
}
else {
vdecl[i].rangeHint.first = 0;
vdecl[i].rangeHint.last = 0;
}
swc->surface_relocation(swc,
&vdecl[i].array.surfaceId,
vb_handle[i],
PIPE_BUFFER_USAGE_GPU_READ);
}
memcpy( prim,
hwtnl->cmd.prim,
hwtnl->cmd.prim_count * sizeof hwtnl->cmd.prim[0]);
for (i = 0; i < hwtnl->cmd.prim_count; i++) {
swc->surface_relocation(swc,
&prim[i].indexArray.surfaceId,
ib_handle[i],
PIPE_BUFFER_USAGE_GPU_READ);
pipe_buffer_reference(&hwtnl->cmd.prim_ib[i], NULL);
}
SVGA_FIFOCommitAll( swc );
hwtnl->cmd.prim_count = 0;
}
return PIPE_OK;
}