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r600g: implement 3D transfers

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That means we can map and read multiple slices with one transfer_map call.
This commit is contained in:
Marek Olšák
2012-12-20 03:45:49 +01:00
parent ee351ea178
commit 1aebb6911e
1 changed files with 32 additions and 22 deletions
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54
src/gallium/drivers/r600/r600_texture.c
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@@ -70,7 +70,7 @@ static void r600_copy_from_staging_texture(struct pipe_context *ctx, struct r600
struct pipe_resource *texture = transfer->resource;
struct pipe_box sbox;
u_box_origin_2d(transfer->box.width, transfer->box.height, &sbox);
u_box_3d(0, 0, 0, transfer->box.width, transfer->box.height, transfer->box.depth, &sbox);
ctx->resource_copy_region(ctx, texture, transfer->level,
transfer->box.x, transfer->box.y, transfer->box.z,
@@ -722,7 +722,6 @@ static void *r600_texture_transfer_map(struct pipe_context *ctx,
{
struct r600_context *rctx = (struct r600_context*)ctx;
struct r600_texture *rtex = (struct r600_texture*)texture;
struct pipe_resource resource;
struct r600_transfer *trans;
boolean use_staging_texture = FALSE;
enum pipe_format format = texture->format;
@@ -793,40 +792,51 @@ static void *r600_texture_transfer_map(struct pipe_context *ctx,
0, 0);
trans->transfer.stride = staging_depth->surface.level[level].pitch_bytes;
trans->transfer.layer_stride = staging_depth->surface.level[level].slice_size;
trans->offset = r600_texture_get_offset(staging_depth, level, box->z);
trans->staging = (struct r600_resource*)staging_depth;
} else if (use_staging_texture) {
resource.target = PIPE_TEXTURE_2D;
struct pipe_resource resource;
struct r600_texture *staging;
memset(&resource, 0, sizeof(resource));
resource.format = texture->format;
resource.width0 = box->width;
resource.height0 = box->height;
resource.depth0 = 1;
resource.array_size = 1;
resource.last_level = 0;
resource.nr_samples = 0;
resource.usage = PIPE_USAGE_STAGING;
resource.bind = 0;
resource.flags = R600_RESOURCE_FLAG_TRANSFER;
/* For texture reading, the temporary (detiled) texture is used as
* a render target when blitting from a tiled texture. */
if (usage & PIPE_TRANSFER_READ) {
resource.bind |= PIPE_BIND_RENDER_TARGET;
}
/* For texture writing, the temporary texture is used as a sampler
* when blitting into a tiled texture. */
if (usage & PIPE_TRANSFER_WRITE) {
resource.bind |= PIPE_BIND_SAMPLER_VIEW;
/* We must set the correct texture target and dimensions if needed for a 3D transfer. */
if (box->depth > 1 && u_max_layer(texture, level) > 0)
resource.target = texture->target;
else
resource.target = PIPE_TEXTURE_2D;
switch (resource.target) {
case PIPE_TEXTURE_1D_ARRAY:
case PIPE_TEXTURE_2D_ARRAY:
case PIPE_TEXTURE_CUBE_ARRAY:
resource.array_size = box->depth;
break;
case PIPE_TEXTURE_3D:
resource.depth0 = box->depth;
break;
default:;
}
/* Create the temporary texture. */
trans->staging = (struct r600_resource*)ctx->screen->resource_create(ctx->screen, &resource);
if (trans->staging == NULL) {
staging = (struct r600_texture*)ctx->screen->resource_create(ctx->screen, &resource);
if (staging == NULL) {
R600_ERR("failed to create temporary texture to hold untiled copy\n");
FREE(trans);
return NULL;
}
trans->transfer.stride =
((struct r600_texture *)trans->staging)->surface.level[0].pitch_bytes;
trans->staging = &staging->resource;
trans->transfer.stride = staging->surface.level[0].pitch_bytes;
trans->transfer.layer_stride = staging->surface.level[0].slice_size;
if (usage & PIPE_TRANSFER_READ) {
r600_copy_to_staging_texture(ctx, trans);
/* Always referenced in the blit. */
@@ -839,9 +849,9 @@ static void *r600_texture_transfer_map(struct pipe_context *ctx,
}
if (trans->staging) {
buf = ((struct r600_resource *)trans->staging)->cs_buf;
buf = trans->staging->cs_buf;
} else {
buf = ((struct r600_resource *)texture)->cs_buf;
buf = rtex->resource.cs_buf;
}
if (rtex->is_depth || !trans->staging)