vc4: Fix use of a bool as an enum.
[mesa.git] / src / gallium / drivers / vc4 / vc4_resource.c
index 7006af3d8ff1b4464b8adab7d1d9eb2ec1b979bd..b8628ec725881bfd9f221ace1ac3253059f38cdd 100644 (file)
 #include "vc4_resource.h"
 #include "vc4_tiling.h"
 
+static bool miptree_debug = false;
+
+static void
+vc4_resource_bo_alloc(struct vc4_resource *rsc)
+{
+        struct pipe_resource *prsc = &rsc->base.b;
+        struct pipe_screen *pscreen = prsc->screen;
+
+        if (miptree_debug) {
+                fprintf(stderr, "alloc %p: size %d + offset %d -> %d\n",
+                        rsc,
+                        rsc->slices[0].size,
+                        rsc->slices[0].offset,
+                        rsc->slices[0].offset +
+                        rsc->slices[0].size +
+                        rsc->cube_map_stride * (prsc->array_size - 1));
+        }
+
+        vc4_bo_unreference(&rsc->bo);
+        rsc->bo = vc4_bo_alloc(vc4_screen(pscreen),
+                               rsc->slices[0].offset +
+                               rsc->slices[0].size +
+                               rsc->cube_map_stride * (prsc->array_size - 1),
+                               "resource");
+}
+
 static void
 vc4_resource_transfer_unmap(struct pipe_context *pctx,
                             struct pipe_transfer *ptrans)
@@ -75,13 +101,23 @@ vc4_resource_transfer_map(struct pipe_context *pctx,
         char *buf;
 
         if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
-                uint32_t size = rsc->bo->size;
-                vc4_bo_unreference(&rsc->bo);
-                rsc->bo = vc4_bo_alloc(vc4->screen, size, "resource");
+                vc4_resource_bo_alloc(rsc);
+        } else if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
+                if (vc4_cl_references_bo(pctx, rsc->bo)) {
+                        if ((usage & PIPE_TRANSFER_DISCARD_RANGE) &&
+                            prsc->last_level == 0 &&
+                            prsc->width0 == box->width &&
+                            prsc->height0 == box->height &&
+                            prsc->depth0 == box->depth) {
+                                vc4_resource_bo_alloc(rsc);
+                        } else {
+                                vc4_flush(pctx);
+                        }
+                }
         }
 
-        if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED))
-                vc4_flush_for_bo(pctx, rsc->bo);
+        if (usage & PIPE_TRANSFER_WRITE)
+                rsc->writes++;
 
         trans = util_slab_alloc(&vc4->transfer_pool);
         if (!trans)
@@ -102,7 +138,10 @@ vc4_resource_transfer_map(struct pipe_context *pctx,
          * need to do syncing stuff here yet.
          */
 
-        buf = vc4_bo_map(rsc->bo);
+        if (usage & PIPE_TRANSFER_UNSYNCHRONIZED)
+                buf = vc4_bo_map_unsynchronized(rsc->bo);
+        else
+                buf = vc4_bo_map(rsc->bo);
         if (!buf) {
                 fprintf(stderr, "Failed to map bo\n");
                 goto fail;
@@ -168,6 +207,7 @@ vc4_resource_destroy(struct pipe_screen *pscreen,
                      struct pipe_resource *prsc)
 {
         struct vc4_resource *rsc = vc4_resource(prsc);
+        pipe_resource_reference(&rsc->shadow_parent, NULL);
         vc4_bo_unreference(&rsc->bo);
         free(rsc);
 }
@@ -216,7 +256,7 @@ vc4_setup_slices(struct vc4_resource *rsc)
                         level_height = u_minify(pot_height, i);
                 }
 
-                if (rsc->tiled == VC4_TILING_FORMAT_LINEAR) {
+                if (!rsc->tiled) {
                         slice->tiling = VC4_TILING_FORMAT_LINEAR;
                         level_width = align(level_width, 16);
                 } else {
@@ -239,6 +279,22 @@ vc4_setup_slices(struct vc4_resource *rsc)
                 slice->size = level_height * slice->stride;
 
                 offset += slice->size;
+
+                if (miptree_debug) {
+                        static const char tiling_chars[] = {
+                                [VC4_TILING_FORMAT_LINEAR] = 'R',
+                                [VC4_TILING_FORMAT_LT] = 'L',
+                                [VC4_TILING_FORMAT_T] = 'T'
+                        };
+                        fprintf(stderr,
+                                "rsc setup %p (format %d), %dx%d: "
+                                "level %d (%c) -> %dx%d, stride %d@0x%08x\n",
+                                rsc, rsc->vc4_format,
+                                prsc->width0, prsc->height0,
+                                i, tiling_chars[slice->tiling],
+                                level_width, level_height,
+                                slice->stride, slice->offset);
+                }
         }
 
         /* The texture base pointer that has to point to level 0 doesn't have
@@ -297,7 +353,7 @@ get_resource_texture_format(struct pipe_resource *prsc)
         return format;
 }
 
-static struct pipe_resource *
+struct pipe_resource *
 vc4_resource_create(struct pipe_screen *pscreen,
                     const struct pipe_resource *tmpl)
 {
@@ -317,19 +373,14 @@ vc4_resource_create(struct pipe_screen *pscreen,
                 rsc->tiled = true;
         }
 
-        vc4_setup_slices(rsc);
+        if (tmpl->target != PIPE_BUFFER)
+                rsc->vc4_format = get_resource_texture_format(prsc);
 
-        rsc->bo = vc4_bo_alloc(vc4_screen(pscreen),
-                               rsc->slices[0].offset +
-                               rsc->slices[0].size +
-                               rsc->cube_map_stride * (prsc->array_size - 1),
-                               "resource");
+        vc4_setup_slices(rsc);
+        vc4_resource_bo_alloc(rsc);
         if (!rsc->bo)
                 goto fail;
 
-        if (tmpl->target != PIPE_BUFFER)
-                rsc->vc4_format = get_resource_texture_format(prsc);
-
         return prsc;
 fail:
         vc4_resource_destroy(pscreen, prsc);
@@ -349,17 +400,28 @@ vc4_resource_from_handle(struct pipe_screen *pscreen,
                 return NULL;
 
         rsc->tiled = false;
-        rsc->bo = vc4_screen_bo_from_handle(pscreen, handle, &slice->stride);
+        rsc->bo = vc4_screen_bo_from_handle(pscreen, handle);
         if (!rsc->bo)
                 goto fail;
 
-#ifdef USE_VC4_SIMULATOR
-        slice->stride = align(prsc->width0 * rsc->cpp, 16);
-#endif
+        if (!using_vc4_simulator)
+                slice->stride = handle->stride;
+        else
+                slice->stride = align(prsc->width0 * rsc->cpp, 16);
+
         slice->tiling = VC4_TILING_FORMAT_LINEAR;
 
         rsc->vc4_format = get_resource_texture_format(prsc);
 
+        if (miptree_debug) {
+                fprintf(stderr,
+                        "rsc import %p (format %d), %dx%d: "
+                        "level 0 (R) -> stride %d@0x%08x\n",
+                        rsc, rsc->vc4_format,
+                        prsc->width0, prsc->height0,
+                        slice->stride, slice->offset);
+        }
+
         return prsc;
 
 fail:
@@ -409,11 +471,11 @@ vc4_surface_destroy(struct pipe_context *pctx, struct pipe_surface *psurf)
 static void
 vc4_flush_resource(struct pipe_context *pctx, struct pipe_resource *resource)
 {
-        struct vc4_context *vc4 = vc4_context(pctx);
-
-        /* XXX: Skip this if we don't have any queued drawing to it. */
-        vc4->base.flush(pctx, NULL, 0);
+        /* All calls to flush_resource are followed by a flush of the context,
+         * so there's nothing to do.
+         */
 }
+
 static bool
 render_blit(struct pipe_context *ctx, struct pipe_blit_info *info)
 {
@@ -477,6 +539,83 @@ vc4_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
         render_blit(pctx, &info);
 }
 
+void
+vc4_update_shadow_baselevel_texture(struct pipe_context *pctx,
+                                    struct pipe_sampler_view *view)
+{
+        struct vc4_resource *shadow = vc4_resource(view->texture);
+        struct vc4_resource *orig = vc4_resource(shadow->shadow_parent);
+        assert(orig);
+
+        if (shadow->writes == orig->writes)
+                return;
+
+        for (int i = 0; i <= shadow->base.b.last_level; i++) {
+                struct pipe_box box = {
+                        .x = 0,
+                        .y = 0,
+                        .z = 0,
+                        .width = u_minify(shadow->base.b.width0, i),
+                        .height = u_minify(shadow->base.b.height0, i),
+                        .depth = 1,
+                };
+
+                util_resource_copy_region(pctx,
+                                          &shadow->base.b, i, 0, 0, 0,
+                                          &orig->base.b,
+                                          view->u.tex.first_level + i,
+                                          &box);
+        }
+
+        shadow->writes = orig->writes;
+}
+
+/**
+ * Converts a 4-byte index buffer to 2 bytes.
+ *
+ * Since GLES2 only has support for 1 and 2-byte indices, the hardware doesn't
+ * include 4-byte index support, and we have to shrink it down.
+ *
+ * There's no fallback support for when indices end up being larger than 2^16,
+ * though it will at least assertion fail.  Also, if the original index data
+ * was in user memory, it would be nice to not have uploaded it to a VBO
+ * before translating.
+ */
+void
+vc4_update_shadow_index_buffer(struct pipe_context *pctx,
+                               const struct pipe_index_buffer *ib)
+{
+        struct vc4_resource *shadow = vc4_resource(ib->buffer);
+        struct vc4_resource *orig = vc4_resource(shadow->shadow_parent);
+        uint32_t count = shadow->base.b.width0 / 2;
+
+        if (shadow->writes == orig->writes)
+                return;
+
+        struct pipe_transfer *src_transfer;
+        uint32_t *src = pipe_buffer_map_range(pctx, &orig->base.b,
+                                              ib->offset,
+                                              count * 4,
+                                              PIPE_TRANSFER_READ, &src_transfer);
+
+        struct pipe_transfer *dst_transfer;
+        uint16_t *dst = pipe_buffer_map_range(pctx, &shadow->base.b,
+                                              0,
+                                              count * 2,
+                                              PIPE_TRANSFER_WRITE, &dst_transfer);
+
+        for (int i = 0; i < count; i++) {
+                uint32_t src_index = src[i];
+                assert(src_index <= 0xffff);
+                dst[i] = src_index;
+        }
+
+        pctx->transfer_unmap(pctx, dst_transfer);
+        pctx->transfer_unmap(pctx, src_transfer);
+
+        shadow->writes = orig->writes;
+}
+
 void
 vc4_resource_screen_init(struct pipe_screen *pscreen)
 {