public static bool ExtractCacheData(EntityManager em, Entity spriteEntity, out SpriteMeshCacheData cacheData)
{
cacheData = default;
if (!em.HasComponent <Sprite>(spriteEntity))
{
return(false);
}
var spriteData = em.GetComponentData <Sprite>(spriteEntity);
if (!em.HasComponent <TextureBGFX>(spriteData.Texture))
{
return(false);
}
if (!em.HasComponent <SpriteMeshBuffers>(spriteEntity))
{
return(false);
}
var spriteMesh = em.GetComponentData <SpriteMeshBuffers>(spriteEntity);
var texture = em.GetComponentData <TextureBGFX>(spriteData.Texture);
cacheData = new SpriteMeshCacheData
{
Hash = new Hash128((uint)spriteEntity.Index, (uint)spriteEntity.Version, 0, 0),
TextureHandle = texture.handle,
IndexBufferHandle = spriteMesh.IndexBufferHandle,
VertexBufferHandle = spriteMesh.VertexBufferHandle,
IndexCount = spriteMesh.IndexCount,
VertexCount = spriteMesh.VertexCount,
VertexLayoutHandle = spriteMesh.VertexLayoutHandle,
};
return(true);
}
public static unsafe void SubmitDrawInstruction(bgfx.Encoder *encoder, float4 color,
SpriteDefaultShader defaultShader, ushort viewId,
SpriteMeshCacheData spriteMesh, uint depth,
ref float4x4 transform)
{
bgfx.encoder_set_state(encoder, k_RenderStates, 0);
bgfx.encoder_set_index_buffer(encoder, new bgfx.IndexBufferHandle {
idx = spriteMesh.IndexBufferHandle
}, (uint)0, (uint)spriteMesh.IndexCount);
bgfx.encoder_set_vertex_buffer(encoder, 0, new bgfx.VertexBufferHandle {
idx = spriteMesh.VertexBufferHandle
}, 0, (uint)spriteMesh.VertexCount, spriteMesh.VertexLayoutHandle);
fixed(float4x4 *p = &transform)
bgfx.encoder_set_transform(encoder, p, 1);
bgfx.encoder_set_uniform(encoder, defaultShader.TintColorHandle, &color, 1);
bgfx.encoder_set_texture(encoder, 0, defaultShader.TexColorSamplerHandle, spriteMesh.TextureHandle, System.UInt32.MaxValue);
bgfx.encoder_submit(encoder, viewId, defaultShader.ProgramHandle, depth, (byte)bgfx.DiscardFlags.All);
}
