gallium: add flag PIPE_TRANSFER_MAP_PERMANENTLY

[mesa.git] / src / gallium / drivers / r300 / r300_transfer.c

diff --git a/src/gallium/drivers/r300/r300_transfer.c b/src/gallium/drivers/r300/r300_transfer.c
index b5572128874eac6e4173a0adf0ff0a4ceead406b..91e861a4a73327531c45499d3bd8cfc8a05e0264 100644 (file)
--- a/src/gallium/drivers/r300/r300_transfer.c
+++ b/src/gallium/drivers/r300/r300_transfer.c
@@ -72,7 +72,8 @@ static void r300_copy_into_tiled_texture(struct pipe_context *ctx,
                               transfer->box.x, transfer->box.y, transfer->box.z,
                               &r300transfer->linear_texture->b.b.b, 0, &src_box);
 
-    ctx->flush(ctx, 0, NULL);
+    /* XXX remove this. */
+    r300_flush(ctx, 0, NULL);
 }
 
 struct pipe_transfer*
@@ -86,7 +87,11 @@ r300_texture_get_transfer(struct pipe_context *ctx,
     struct r300_resource *tex = r300_resource(texture);
     struct r300_transfer *trans;
     struct pipe_resource base;
-    boolean referenced_cs, referenced_hw, blittable;
+    boolean referenced_cs, referenced_hw;
+
+    if (usage & (PIPE_TRANSFER_MAP_DIRECTLY | PIPE_TRANSFER_MAP_PERMANENTLY)) {
+        return NULL;
+    }
 
     referenced_cs =
         r300->rws->cs_is_buffer_referenced(r300->cs, tex->cs_buf);
@@ -94,13 +99,9 @@ r300_texture_get_transfer(struct pipe_context *ctx,
         referenced_hw = TRUE;
     } else {
         referenced_hw =
-            r300->rws->buffer_is_busy(tex->buf);
+            r300->rws->buffer_is_busy(tex->buf, RADEON_USAGE_READWRITE);
     }
 
-    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) {
         /* Initialize the transfer object. */
@@ -113,7 +114,8 @@ r300_texture_get_transfer(struct pipe_context *ctx,
          * for this transfer.
          * Also make write transfers pipelined. */
         if (tex->tex.microtile || tex->tex.macrotile[level] ||
-            ((referenced_hw & !(usage & PIPE_TRANSFER_READ)) && blittable)) {
+            (referenced_hw && !(usage & PIPE_TRANSFER_READ) &&
+             r300_is_blit_supported(texture->format))) {
             if (r300->blitter->running) {
                 fprintf(stderr, "r300: ERROR: Blitter recursion in texture_get_transfer.\n");
                 os_break();
@@ -127,8 +129,14 @@ r300_texture_get_transfer(struct pipe_context *ctx,
             base.array_size = 1;
             base.last_level = 0;
             base.nr_samples = 0;
-            base.usage = PIPE_USAGE_DYNAMIC;
+            base.usage = PIPE_USAGE_STAGING;
             base.bind = 0;
+            if (usage & PIPE_TRANSFER_READ) {
+                base.bind |= PIPE_BIND_SAMPLER_VIEW;
+            }
+            if (usage & PIPE_TRANSFER_WRITE) {
+                base.bind |= PIPE_BIND_RENDER_TARGET;
+            }
             base.flags = R300_RESOURCE_FLAG_TRANSFER;
 
             /* For texture reading, the temporary (detiled) texture is used as
@@ -150,7 +158,7 @@ r300_texture_get_transfer(struct pipe_context *ctx,
             if (!trans->linear_texture) {
                 /* Oh crap, the thing can't create the texture.
                  * Let's flush and try again. */
-                ctx->flush(ctx, 0, NULL);
+                r300_flush(ctx, 0, NULL);
 
                 trans->linear_texture = r300_resource(
                    ctx->screen->resource_create(ctx->screen,
@@ -174,13 +182,7 @@ r300_texture_get_transfer(struct pipe_context *ctx,
             assert(!trans->linear_texture->tex.microtile &&
                    !trans->linear_texture->tex.macrotile[0]);
 
-            /* Set the stride.
-            *
-            * Even though we are using an internal texture for this,
-            * the transfer level, box and usage parameters still reflect
-            * the arguments received to get_transfer.  We just do the
-            * right thing internally.
-            */
+            /* Set the stride. */
             trans->transfer.stride =
                     trans->linear_texture->tex.stride_in_bytes[0];
 
@@ -190,7 +192,7 @@ r300_texture_get_transfer(struct pipe_context *ctx,
                 r300_copy_from_tiled_texture(ctx, trans);
 
                 /* Always referenced in the blit. */
-                ctx->flush(ctx, 0, NULL);
+                r300_flush(ctx, 0, NULL);
             }
             return &trans->transfer;
         }
@@ -200,8 +202,9 @@ r300_texture_get_transfer(struct pipe_context *ctx,
         trans->transfer.stride = tex->tex.stride_in_bytes[level];
         trans->offset = r300_texture_get_offset(tex, level, box->z);
 
-        if (referenced_cs)
-            ctx->flush(ctx, PIPE_FLUSH_RENDER_CACHE, NULL);
+        if (referenced_cs &&
+            !(usage & PIPE_TRANSFER_UNSYNCHRONIZED))
+            r300_flush(ctx, 0, NULL);
         return &trans->transfer;
     }
     return NULL;
@@ -228,7 +231,7 @@ void* r300_texture_transfer_map(struct pipe_context *ctx,
                                struct pipe_transfer *transfer)
 {
     struct r300_context *r300 = r300_context(ctx);
-    struct r300_winsys_screen *rws = (struct r300_winsys_screen *)ctx->winsys;
+    struct radeon_winsys *rws = (struct radeon_winsys *)ctx->winsys;
     struct r300_transfer *r300transfer = r300_transfer(transfer);
     struct r300_resource *tex = r300_resource(transfer->resource);
     char *map;
@@ -258,7 +261,7 @@ void* r300_texture_transfer_map(struct pipe_context *ctx,
 void r300_texture_transfer_unmap(struct pipe_context *ctx,
                                 struct pipe_transfer *transfer)
 {
-    struct r300_winsys_screen *rws = (struct r300_winsys_screen *)ctx->winsys;
+    struct radeon_winsys *rws = (struct radeon_winsys *)ctx->winsys;
     struct r300_transfer *r300transfer = r300_transfer(transfer);
     struct r300_resource *tex = r300_resource(transfer->resource);