* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE. */
-#include "r300_context.h"
#include "r300_transfer.h"
#include "r300_texture.h"
-#include "r300_screen.h"
+#include "r300_screen_buffer.h"
#include "util/u_memory.h"
#include "util/u_format.h"
-static struct pipe_transfer*
-r300_get_tex_transfer(struct pipe_screen *screen,
- struct pipe_texture *texture,
- unsigned face, unsigned level, unsigned zslice,
- enum pipe_transfer_usage usage, unsigned x, unsigned y,
- unsigned w, unsigned h)
+struct r300_transfer {
+ /* Parent class */
+ struct pipe_transfer transfer;
+
+ /* Offset from start of buffer. */
+ unsigned offset;
+
+ /* Detiled texture. */
+ struct r300_texture *detiled_texture;
+};
+
+/* Convenience cast wrapper. */
+static INLINE struct r300_transfer*
+r300_transfer(struct pipe_transfer* transfer)
+{
+ return (struct r300_transfer*)transfer;
+}
+
+/* Copy from a tiled texture to a detiled one. */
+static void r300_copy_from_tiled_texture(struct pipe_context *ctx,
+ struct r300_transfer *r300transfer)
+{
+ struct pipe_transfer *transfer = (struct pipe_transfer*)r300transfer;
+ struct pipe_resource *tex = transfer->resource;
+ struct pipe_subresource subdst;
+
+ subdst.face = 0;
+ subdst.level = 0;
+
+ ctx->resource_copy_region(ctx, &r300transfer->detiled_texture->b.b, subdst,
+ 0, 0, 0,
+ tex, transfer->sr,
+ transfer->box.x, transfer->box.y, transfer->box.z,
+ transfer->box.width, transfer->box.height);
+}
+
+/* Copy a detiled texture to a tiled one. */
+static void r300_copy_into_tiled_texture(struct pipe_context *ctx,
+ struct r300_transfer *r300transfer)
+{
+ struct pipe_transfer *transfer = (struct pipe_transfer*)r300transfer;
+ struct pipe_resource *tex = transfer->resource;
+ struct pipe_subresource subsrc;
+
+ subsrc.face = 0;
+ subsrc.level = 0;
+
+ ctx->resource_copy_region(ctx, tex, transfer->sr,
+ transfer->box.x, transfer->box.y, transfer->box.z,
+ &r300transfer->detiled_texture->b.b, subsrc,
+ 0, 0, 0,
+ transfer->box.width, transfer->box.height);
+}
+
+struct pipe_transfer*
+r300_texture_get_transfer(struct pipe_context *ctx,
+ struct pipe_resource *texture,
+ struct pipe_subresource sr,
+ unsigned usage,
+ const struct pipe_box *box)
{
- struct r300_texture *tex = (struct r300_texture *)texture;
+ struct r300_texture *tex = r300_texture(texture);
+ struct r300_screen *r300screen = r300_screen(ctx->screen);
struct r300_transfer *trans;
- struct r300_screen *rscreen = r300_screen(screen);
- unsigned offset;
+ struct pipe_resource base;
+ boolean referenced_cs, referenced_hw, blittable;
+
+ referenced_cs = r300screen->rws->is_buffer_referenced(
+ r300screen->rws, tex->buffer, R300_REF_CS);
+ if (referenced_cs) {
+ referenced_hw = TRUE;
+ } else {
+ referenced_hw = r300screen->rws->is_buffer_referenced(
+ r300screen->rws, tex->buffer, R300_REF_HW);
+ }
- offset = r300_texture_get_offset(tex, level, zslice, face); /* in bytes */
+ blittable = ctx->screen->is_format_supported(
+ ctx->screen, texture->format, texture->target, 0,
+ PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET, 0);
trans = CALLOC_STRUCT(r300_transfer);
if (trans) {
- pipe_texture_reference(&trans->transfer.texture, texture);
- trans->transfer.x = x;
- trans->transfer.y = y;
- trans->transfer.width = w;
- trans->transfer.height = h;
- trans->transfer.stride = r300_texture_get_stride(rscreen, tex, level);
+ /* Initialize the transfer object. */
+ pipe_resource_reference(&trans->transfer.resource, texture);
+ trans->transfer.sr = sr;
trans->transfer.usage = usage;
- trans->transfer.zslice = zslice;
- trans->transfer.face = face;
+ trans->transfer.box = *box;
- trans->offset = offset;
+ /* If the texture is tiled, we must create a temporary detiled texture
+ * for this transfer.
+ * Also make write transfers pipelined. */
+ if (tex->microtile || tex->macrotile ||
+ ((referenced_hw & !(usage & PIPE_TRANSFER_READ)) && blittable)) {
+ base.target = PIPE_TEXTURE_2D;
+ base.format = texture->format;
+ base.width0 = box->width;
+ base.height0 = box->height;
+ base.depth0 = 0;
+ base.last_level = 0;
+ base.nr_samples = 0;
+ base.usage = PIPE_USAGE_DYNAMIC;
+ base.bind = 0;
+ base.flags = R300_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) {
+ base.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) {
+ base.bind |= PIPE_BIND_SAMPLER_VIEW;
+ }
+
+ /* Create the temporary texture. */
+ trans->detiled_texture = r300_texture(
+ ctx->screen->resource_create(ctx->screen,
+ &base));
+
+ if (!trans->detiled_texture) {
+ /* Oh crap, the thing can't create the texture.
+ * Let's flush and try again. */
+ ctx->flush(ctx, 0, NULL);
+
+ trans->detiled_texture = r300_texture(
+ ctx->screen->resource_create(ctx->screen,
+ &base));
+
+ if (!trans->detiled_texture) {
+ /* For linear textures, it's safe to fallback to
+ * an unpipelined transfer. */
+ if (!tex->microtile && !tex->macrotile) {
+ goto unpipelined;
+ }
+
+ /* Otherwise, go to hell. */
+ fprintf(stderr,
+ "r300: Failed to create a transfer object, praise.\n");
+ FREE(trans);
+ return NULL;
+ }
+ }
+
+ assert(!trans->detiled_texture->microtile &&
+ !trans->detiled_texture->macrotile);
+
+ /* Set the stride.
+ *
+ * Even though we are using an internal texture for this,
+ * the transfer sr, box and usage parameters still reflect
+ * the arguments received to get_transfer. We just do the
+ * right thing internally.
+ */
+ trans->transfer.stride =
+ r300_texture_get_stride(r300screen, trans->detiled_texture, 0);
+
+ if (usage & PIPE_TRANSFER_READ) {
+ /* We cannot map a tiled texture directly because the data is
+ * in a different order, therefore we do detiling using a blit. */
+ r300_copy_from_tiled_texture(ctx, trans);
+
+ /* Always referenced in the blit. */
+ ctx->flush(ctx, 0, NULL);
+ }
+ return &trans->transfer;
+ }
+
+ unpipelined:
+ /* Unpipelined transfer. */
+ trans->transfer.stride =
+ r300_texture_get_stride(r300screen, tex, sr.level);
+ trans->offset = r300_texture_get_offset(tex, sr.level, box->z, sr.face);
+
+ if (referenced_cs && (usage & PIPE_TRANSFER_READ))
+ ctx->flush(ctx, PIPE_FLUSH_RENDER_CACHE, NULL);
+ return &trans->transfer;
}
- return &trans->transfer;
+ return NULL;
}
-static void r300_tex_transfer_destroy(struct pipe_transfer *trans)
+void r300_texture_transfer_destroy(struct pipe_context *ctx,
+ struct pipe_transfer *trans)
{
- pipe_texture_reference(&trans->texture, NULL);
- FREE(trans);
+ struct r300_transfer *r300transfer = r300_transfer(trans);
+
+ if (r300transfer->detiled_texture) {
+ if (trans->usage & PIPE_TRANSFER_WRITE) {
+ r300_copy_into_tiled_texture(ctx, r300transfer);
+ }
+
+ pipe_resource_reference(
+ (struct pipe_resource**)&r300transfer->detiled_texture, NULL);
+ }
+ pipe_resource_reference(&trans->resource, NULL);
+ FREE(trans);
}
-static void* r300_transfer_map(struct pipe_screen *screen,
- struct pipe_transfer *transfer)
+void* r300_texture_transfer_map(struct pipe_context *ctx,
+ struct pipe_transfer *transfer)
{
- struct r300_texture *tex = (struct r300_texture*)transfer->texture;
+ struct r300_winsys_screen *rws = (struct r300_winsys_screen *)ctx->winsys;
+ struct r300_transfer *r300transfer = r300_transfer(transfer);
+ struct r300_texture *tex = r300_texture(transfer->resource);
char *map;
- enum pipe_format format = tex->tex.format;
+ enum pipe_format format = tex->b.b.format;
- map = pipe_buffer_map(screen, tex->buffer,
- pipe_transfer_buffer_flags(transfer));
+ if (r300transfer->detiled_texture) {
+ /* The detiled texture is of the same size as the region being mapped
+ * (no offset needed). */
+ return rws->buffer_map(rws,
+ r300transfer->detiled_texture->buffer,
+ transfer->usage);
+ } else {
+ /* Tiling is disabled. */
+ map = rws->buffer_map(rws, tex->buffer,
+ transfer->usage);
- if (!map) {
- return NULL;
- }
+ if (!map) {
+ return NULL;
+ }
- return map + r300_transfer(transfer)->offset +
- transfer->y / util_format_get_blockheight(format) * transfer->stride +
- transfer->x / util_format_get_blockwidth(format) * util_format_get_blocksize(format);
+ return map + r300_transfer(transfer)->offset +
+ transfer->box.y / util_format_get_blockheight(format) * transfer->stride +
+ transfer->box.x / util_format_get_blockwidth(format) * util_format_get_blocksize(format);
+ }
}
-static void r300_transfer_unmap(struct pipe_screen *screen,
- struct pipe_transfer *transfer)
+void r300_texture_transfer_unmap(struct pipe_context *ctx,
+ struct pipe_transfer *transfer)
{
- struct r300_texture *tex = (struct r300_texture*)transfer->texture;
- pipe_buffer_unmap(screen, tex->buffer);
-}
+ struct r300_winsys_screen *rws = (struct r300_winsys_screen *)ctx->winsys;
+ struct r300_transfer *r300transfer = r300_transfer(transfer);
+ struct r300_texture *tex = r300_texture(transfer->resource);
-void r300_init_screen_transfer_functions(struct pipe_screen *screen)
-{
- screen->get_tex_transfer = r300_get_tex_transfer;
- screen->tex_transfer_destroy = r300_tex_transfer_destroy;
- screen->transfer_map = r300_transfer_map;
- screen->transfer_unmap = r300_transfer_unmap;
+ if (r300transfer->detiled_texture) {
+ rws->buffer_unmap(rws, r300transfer->detiled_texture->buffer);
+ } else {
+ rws->buffer_unmap(rws, tex->buffer);
+ }
}
projects / mesa.git / blobdiff