gallium: add flag PIPE_TRANSFER_MAP_PERMANENTLY
[mesa.git] / src / gallium / drivers / r300 / r300_transfer.c
index 314513561baefdac00d828e0572301fa60bea5cb..91e861a4a73327531c45499d3bd8cfc8a05e0264 100644 (file)
@@ -37,7 +37,7 @@ struct r300_transfer {
     unsigned offset;
 
     /* Linear texture. */
-    struct r300_texture *linear_texture;
+    struct r300_resource *linear_texture;
 };
 
 /* Convenience cast wrapper. */
@@ -54,7 +54,7 @@ static void r300_copy_from_tiled_texture(struct pipe_context *ctx,
     struct pipe_transfer *transfer = (struct pipe_transfer*)r300transfer;
     struct pipe_resource *tex = transfer->resource;
 
-    ctx->resource_copy_region(ctx, &r300transfer->linear_texture->desc.b.b, 0,
+    ctx->resource_copy_region(ctx, &r300transfer->linear_texture->b.b.b, 0,
                               0, 0, 0,
                               tex, transfer->level, &transfer->box);
 }
@@ -70,9 +70,10 @@ static void r300_copy_into_tiled_texture(struct pipe_context *ctx,
 
     ctx->resource_copy_region(ctx, tex, transfer->level,
                               transfer->box.x, transfer->box.y, transfer->box.z,
-                              &r300transfer->linear_texture->desc.b.b, 0, &src_box);
+                              &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*
@@ -83,26 +84,24 @@ r300_texture_get_transfer(struct pipe_context *ctx,
                           const struct pipe_box *box)
 {
     struct r300_context *r300 = r300_context(ctx);
-    struct r300_texture *tex = r300_texture(texture);
+    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, R300_REF_CS);
+        r300->rws->cs_is_buffer_referenced(r300->cs, tex->cs_buf);
     if (referenced_cs) {
         referenced_hw = TRUE;
     } else {
         referenced_hw =
-            r300->rws->cs_is_buffer_referenced(r300->cs,
-                                               tex->cs_buf, R300_REF_HW);
+            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. */
@@ -114,8 +113,14 @@ r300_texture_get_transfer(struct pipe_context *ctx,
         /* If the texture is tiled, we must create a temporary detiled texture
          * for this transfer.
          * Also make write transfers pipelined. */
-        if (tex->desc.microtile || tex->desc.macrotile[level] ||
-            ((referenced_hw & !(usage & PIPE_TRANSFER_READ)) && blittable)) {
+        if (tex->tex.microtile || tex->tex.macrotile[level] ||
+            (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();
+            }
+
             base.target = PIPE_TEXTURE_2D;
             base.format = texture->format;
             base.width0 = box->width;
@@ -124,8 +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
@@ -140,23 +151,23 @@ r300_texture_get_transfer(struct pipe_context *ctx,
             }
 
             /* Create the temporary texture. */
-            trans->linear_texture = r300_texture(
+            trans->linear_texture = r300_resource(
                ctx->screen->resource_create(ctx->screen,
                                             &base));
 
             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_texture(
+                trans->linear_texture = r300_resource(
                    ctx->screen->resource_create(ctx->screen,
                                                 &base));
 
                 if (!trans->linear_texture) {
                     /* For linear textures, it's safe to fallback to
                      * an unpipelined transfer. */
-                    if (!tex->desc.microtile && !tex->desc.macrotile[level]) {
+                    if (!tex->tex.microtile && !tex->tex.macrotile[level]) {
                         goto unpipelined;
                     }
 
@@ -168,18 +179,12 @@ r300_texture_get_transfer(struct pipe_context *ctx,
                 }
             }
 
-            assert(!trans->linear_texture->desc.microtile &&
-                   !trans->linear_texture->desc.macrotile[0]);
+            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->desc.stride_in_bytes[0];
+                    trans->linear_texture->tex.stride_in_bytes[0];
 
             if (usage & PIPE_TRANSFER_READ) {
                 /* We cannot map a tiled texture directly because the data is
@@ -187,18 +192,19 @@ 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;
         }
 
     unpipelined:
         /* Unpipelined transfer. */
-        trans->transfer.stride = tex->desc.stride_in_bytes[level];
-        trans->offset = r300_texture_get_offset(&tex->desc, level, box->z);
+        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;
@@ -225,22 +231,21 @@ 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_texture *tex = r300_texture(transfer->resource);
+    struct r300_resource *tex = r300_resource(transfer->resource);
     char *map;
-    enum pipe_format format = tex->desc.b.b.format;
+    enum pipe_format format = tex->b.b.b.format;
 
     if (r300transfer->linear_texture) {
         /* The detiled texture is of the same size as the region being mapped
          * (no offset needed). */
-        return rws->buffer_map(rws,
-                               r300transfer->linear_texture->buf,
+        return rws->buffer_map(r300transfer->linear_texture->buf,
                                r300->cs,
                                transfer->usage);
     } else {
         /* Tiling is disabled. */
-        map = rws->buffer_map(rws, tex->buf, r300->cs,
+        map = rws->buffer_map(tex->buf, r300->cs,
                               transfer->usage);
 
         if (!map) {
@@ -256,13 +261,13 @@ 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_texture *tex = r300_texture(transfer->resource);
+    struct r300_resource *tex = r300_resource(transfer->resource);
 
     if (r300transfer->linear_texture) {
-        rws->buffer_unmap(rws, r300transfer->linear_texture->buf);
+        rws->buffer_unmap(r300transfer->linear_texture->buf);
     } else {
-        rws->buffer_unmap(rws, tex->buf);
+        rws->buffer_unmap(tex->buf);
     }
 }