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/*
* gxr
* Copyright 2018 Collabora Ltd.
* Author: Lubosz Sarnecki <lubosz.sarnecki@collabora.com>
* Author: Christoph Haag <christoph.haag@collabora.com>
* SPDX-License-Identifier: MIT
*/
#include "scene-model.h"
#include <gxr.h>
typedef struct {
float mvp[16];
} SceneModelUniformBuffer;
struct _SceneModel
{
SceneObject parent;
GulkanClient *gulkan;
GulkanTexture *texture;
GulkanVertexBuffer *vbo;
VkSampler sampler;
gchar *model_name;
};
static gchar *
_get_name (GxrModel *self)
{
SceneModel *scene_model = SCENE_MODEL (self);
return scene_model->model_name;
}
static void
scene_model_interface_init (GxrModelInterface *iface)
{
iface->get_name = _get_name;
}
G_DEFINE_TYPE_WITH_CODE (SceneModel, scene_model, SCENE_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (GXR_TYPE_MODEL,
scene_model_interface_init))
static void
scene_model_finalize (GObject *gobject);
static void
scene_model_class_init (SceneModelClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = scene_model_finalize;
}
static void
scene_model_init (SceneModel *self)
{
self->sampler = VK_NULL_HANDLE;
self->vbo = gulkan_vertex_buffer_new ();
}
SceneModel *
scene_model_new (VkDescriptorSetLayout *layout, GulkanClient *gulkan)
{
SceneModel *self = (SceneModel*) g_object_new (SCENE_TYPE_MODEL, 0);
self->gulkan = g_object_ref (gulkan);
SceneObject *obj = SCENE_OBJECT (self);
VkDeviceSize ub_size = sizeof (SceneModelUniformBuffer);
if (!scene_object_initialize (obj, gulkan, layout, ub_size))
return FALSE;
return self;
}
static void
scene_model_finalize (GObject *gobject)
{
SceneModel *self = SCENE_MODEL (gobject);
g_free (self->model_name);
g_clear_object (&self->vbo);
g_clear_object (&self->texture);
GulkanDevice *device = gulkan_client_get_device (self->gulkan);
if (self->sampler != VK_NULL_HANDLE)
vkDestroySampler (gulkan_device_get_handle (device),
self->sampler, NULL);
g_clear_object (&self->gulkan);
G_OBJECT_CLASS (scene_model_parent_class)->finalize (gobject);
}
VkSampler
scene_model_get_sampler (SceneModel *self)
{
return self->sampler;
}
GulkanVertexBuffer*
scene_model_get_vbo (SceneModel *self)
{
return self->vbo;
}
GulkanTexture*
scene_model_get_texture (SceneModel *self)
{
return self->texture;
}
gboolean
scene_model_load (SceneModel *self,
GxrContext *context,
const char *model_name)
{
gboolean res =
gxr_context_load_model (context, self->vbo, &self->texture,
&self->sampler, model_name);
SceneObject *obj = SCENE_OBJECT (self);
scene_object_update_descriptors_texture (
obj, self->sampler,
gulkan_texture_get_image_view (self->texture));
self->model_name = g_strdup (model_name);
return res;
}
static void
_update_ubo (SceneModel *self,
GxrEye eye,
graphene_matrix_t *transformation,
graphene_matrix_t *vp)
{
SceneModelUniformBuffer ub;
graphene_matrix_t mvp_matrix;
graphene_matrix_multiply (transformation, vp, &mvp_matrix);
graphene_matrix_to_float (&mvp_matrix, ub.mvp);
scene_object_update_ubo (SCENE_OBJECT (self), eye, &ub);
}
void
scene_model_render (SceneModel *self,
GxrEye eye,
VkPipeline pipeline,
VkCommandBuffer cmd_buffer,
VkPipelineLayout pipeline_layout,
graphene_matrix_t *transformation,
graphene_matrix_t *vp)
{
SceneObject *obj = SCENE_OBJECT (self);
if (!scene_object_is_visible (obj))
return;
vkCmdBindPipeline (cmd_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
_update_ubo (self, eye, transformation, vp);
scene_object_bind (obj, eye, cmd_buffer, pipeline_layout);
gulkan_vertex_buffer_draw_indexed (self->vbo, cmd_buffer);
}
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