/******************************************************************************
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 Baldur Karlsson
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 ******************************************************************************/

#include "d3d11_test.h"

struct D3D11_Map_Overrun : D3D11GraphicsTest
{
  static constexpr const char *Description = "Test overrunning the bounds of a Map() call";

  std::string common = R"EOSHADER(

struct a2v
{
	float3 pos : POSITION;
	float4 col : COLOR0;
	float2 uv : TEXCOORD0;
};

struct v2f
{
	float4 pos : SV_POSITION;
	float4 col : COLOR0;
	float4 uv : TEXCOORD0;
};

)EOSHADER";

  std::string vertex = R"EOSHADER(

v2f main(a2v IN, uint vid : SV_VertexID)
{
	v2f OUT = (v2f)0;

	OUT.pos = float4(IN.pos.xyz, 1);
	OUT.col = IN.col;
	OUT.uv = float4(IN.uv, 0, 1);

	return OUT;
}

)EOSHADER";

  std::string pixel = R"EOSHADER(

float4 main(v2f IN) : SV_Target0
{
	return IN.col;
}

)EOSHADER";

  int main(int argc, char **argv)
  {
    // initialise, create window, create device, etc
    if(!Init(argc, argv))
      return 3;

    ID3DBlobPtr vsblob = Compile(common + vertex, "main", "vs_5_0");
    ID3DBlobPtr psblob = Compile(common + pixel, "main", "ps_5_0");

    CreateDefaultInputLayout(vsblob);

    ID3D11VertexShaderPtr vs = CreateVS(vsblob);
    ID3D11PixelShaderPtr ps = CreatePS(psblob);

    ID3D11BufferPtr vb =
        MakeBuffer().Vertex().Mappable().Data(DefaultTri).Size(sizeof(DefaultTri) - sizeof(Vec2f));

    D3D11_MAPPED_SUBRESOURCE mapped = Map(vb, 0, D3D11_MAP_WRITE_DISCARD);

    memcpy(mapped.pData, DefaultTri, sizeof(DefaultTri));

    ctx->Unmap(vb, 0);

    while(Running())
    {
      ClearRenderTargetView(bbRTV, {0.4f, 0.5f, 0.6f, 1.0f});

      IASetVertexBuffer(vb, sizeof(DefaultA2V), 0);
      ctx->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
      ctx->IASetInputLayout(defaultLayout);

      ctx->VSSetShader(vs, NULL, 0);
      ctx->PSSetShader(ps, NULL, 0);

      RSSetViewport({0.0f, 0.0f, (float)screenWidth, (float)screenHeight, 0.0f, 1.0f});

      ctx->OMSetRenderTargets(1, &bbRTV.GetInterfacePtr(), NULL);

      ctx->Draw(3, 0);

      Present();
    }

    return 0;
  }
};

REGISTER_TEST(D3D11_Map_Overrun);