clover/images: Add array_size to implement CL_IMAGE_ARRAY_SIZE

This will be needed to implement array immages.

v2 (Karol Herbst): Extracted from other commit
                   Fix clEnqueueMapImage for arrays
                   Add some basic support for image arrays

Signed-off-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13401>

src/gallium/frontends/clover/api/memory.cpp

@@ -454,6 +454,10 @@ clGetImageInfo(cl_mem d_mem, cl_image_info param,
       buf.as_scalar<size_t>() = img.depth();
       break;
 
+   case CL_IMAGE_ARRAY_SIZE:
+      buf.as_scalar<size_t>() = img.array_size();
+      break;
+
    case CL_IMAGE_NUM_MIP_LEVELS:
       buf.as_scalar<cl_uint>() = 0;
       break;

src/gallium/frontends/clover/api/transfer.cpp

@@ -862,7 +862,7 @@ clEnqueueMapImage(cl_command_queue d_q, cl_mem d_mem, cl_bool blocking,
    if (!row_pitch)
       throw error(CL_INVALID_VALUE);
 
-   if (img.slice_pitch() && !slice_pitch)
+   if ((img.slice_pitch() || img.array_size()) && !slice_pitch)
       throw error(CL_INVALID_VALUE);
 
    auto *map = img.resource_in(q).add_map(q, flags, blocking, origin, region);

src/gallium/frontends/clover/core/memory.cpp

@@ -171,12 +171,12 @@ image::image(clover::context &ctx,
              std::vector<cl_mem_properties> properties,
              cl_mem_flags flags,
              const cl_image_format *format,
-             size_t width, size_t height, size_t depth,
+             size_t width, size_t height, size_t depth, size_t array_size,
              size_t row_pitch, size_t slice_pitch, size_t size,
              void *host_ptr) :
    memory_obj(ctx, properties, flags, size, host_ptr),
    _format(*format), _width(width), _height(height), _depth(depth),
-   _row_pitch(row_pitch), _slice_pitch(slice_pitch) {
+   _row_pitch(row_pitch), _slice_pitch(slice_pitch), _array_size(array_size) {
 }
 
 resource &
@@ -249,13 +249,18 @@ image::slice_pitch() const {
    return _slice_pitch;
 }
 
+size_t
+image::array_size() const {
+   return _array_size;
+}
+
 image1d::image1d(clover::context &ctx,
                  std::vector<cl_mem_properties> properties,
                  cl_mem_flags flags,
                  const cl_image_format *format,
                  size_t width, size_t row_pitch,
                  void *host_ptr) :
-   basic_image(ctx, properties, flags, format, width, 1, 1,
+   basic_image(ctx, properties, flags, format, width, 1, 1, 0,
                row_pitch, 0, row_pitch, host_ptr) {
 }
 
@@ -265,7 +270,7 @@ image2d::image2d(clover::context &ctx,
                  const cl_image_format *format, size_t width,
                  size_t height, size_t row_pitch,
                  void *host_ptr) :
-   basic_image(ctx, properties, flags, format, width, height, 1,
+   basic_image(ctx, properties, flags, format, width, height, 1, 0,
                row_pitch, 0, height * row_pitch, host_ptr) {
 }
 
@@ -276,7 +281,7 @@ image3d::image3d(clover::context &ctx,
                  size_t width, size_t height, size_t depth,
                  size_t row_pitch, size_t slice_pitch,
                  void *host_ptr) :
-   basic_image(ctx, properties, flags, format, width, height, depth,
+   basic_image(ctx, properties, flags, format, width, height, depth, 0,
                row_pitch, slice_pitch, depth * slice_pitch,
                host_ptr) {
 }

src/gallium/frontends/clover/core/memory.hpp

@@ -138,7 +138,7 @@ namespace clover {
             std::vector<cl_mem_properties> properties,
             cl_mem_flags flags,
             const cl_image_format *format,
-            size_t width, size_t height, size_t depth,
+            size_t width, size_t height, size_t depth, size_t array_size,
             size_t row_pitch, size_t slice_pitch, size_t size,
             void *host_ptr);
 
@@ -150,6 +150,7 @@ namespace clover {
       size_t pixel_size() const;
       size_t row_pitch() const;
       size_t slice_pitch() const;
+      size_t array_size() const;
       virtual clover::resource &
       resource_in(command_queue &q);
       virtual clover::resource &
@@ -167,6 +168,7 @@ namespace clover {
       size_t _depth;
       size_t _row_pitch;
       size_t _slice_pitch;
+      size_t _array_size;
       std::map<device *,
                std::unique_ptr<root_resource>> resources;
       std::mutex resources_mtx;

src/gallium/frontends/clover/core/resource.cpp

@@ -164,13 +164,14 @@ root_resource::root_resource(clover::device &dev, memory_obj &obj,
       info.width0 = img->width();
       info.height0 = img->height();
       info.depth0 = img->depth();
+      info.array_size = MAX2(1, img->array_size());
    } else {
       info.width0 = obj.size();
       info.height0 = 1;
       info.depth0 = 1;
+      info.array_size = 1;
    }
 
-   info.array_size = 1;
    info.target = translate_target(obj.type());
    info.bind = (PIPE_BIND_SAMPLER_VIEW |
                 PIPE_BIND_COMPUTE_RESOURCE |