1 /*

     2  * Copyright (c) 2019, 2019, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 #ifndef VertexDataManager_h_Included

    27 #define VertexDataManager_h_Included

    28 

    29 #import <Metal/Metal.h>

    30 #import "shaders/MetalShaderTypes.h"

    31 

    32 // ---------------------------------------------------------------------

    33 //TODO : This implementation should be redesigned as a singleton class

    34 //TODO : Drawing optimization can be done - if current primitive-type to be 

    35 //       drawn is equal to previous primitive-type in the list/array 

    36 //       (Similar to previous-op in OGL)

    37 // ---------------------------------------------------------------------

    38 

    39 typedef struct 

    40 {

    41     MTLPrimitiveType type;

    42     unsigned int offset_in_index_buffer;

    43     unsigned int no_of_indices;

    44     unsigned int primitiveInstances;

    45 } MetalPrimitiveData;

    46 

    47 void VertexDataManager_init(id<MTLDevice> device);

    48 

    49 void VertexDataManager_addLineVertexData(MetalVertex v1, MetalVertex v2);

    50 void VertexDataManager_addQuadVertexData(MetalVertex v1, MetalVertex v2, MetalVertex v3, MetalVertex v4);

    51 

    52 id<MTLBuffer> VertexDataManager_getVertexBuffer();

    53 id<MTLBuffer> VertexDataManager_getIndexBuffer();

    54 MetalPrimitiveData** VertexDataManager_getAllPrimitives();

    55 unsigned int VertexDataManager_getNoOfPrimitives();

    56 

    57 void VertexDataManager_freeAllPrimitives();

    58 void VertexDataManager_reset(id<MTLDevice> device);

    59 

    60 // should be private

    61 void addVertex(MetalVertex vert);

    62 void addIndex(unsigned short vertexNum);

    63 

    64 #endif //VertexDataManager_h_Included