tutorial: port the rotating cube tutorial to the Xbox 360 and

tweak the triangle tutorial to make it shorter.

test/tutorial/tut01.cpp

@@ -38,13 +38,8 @@ public:
     Triangle()
     {
         m_vertices[0] = vec2( 0.0,  0.8);
-#if defined _XBOX
-        m_vertices[2] = vec2(-0.8, -0.8);
-        m_vertices[1] = vec2( 0.8, -0.8);
-#else
         m_vertices[1] = vec2(-0.8, -0.8);
         m_vertices[2] = vec2( 0.8, -0.8);
-#endif
         m_ready = false;
     }
 
@@ -57,33 +52,29 @@ public:
             m_shader = Shader::Create(
 #if !defined __CELLOS_LV2__ && !defined _XBOX
                 "#version 120\n"
-                "attribute vec2 coord2d;"
+                "attribute vec2 in_Position;"
                 "void main(void) {"
-                "    gl_Position = vec4(coord2d, 0.0, 1.0);"
+                "    gl_Position = vec4(in_Position, 0.0, 1.0);"
                 "}",
 
                 "#version 120\n"
                 "void main(void) {"
-                "    gl_FragColor.r = 1.0;"
-                "    gl_FragColor.g = 1.0;"
-                "    gl_FragColor.b = 0.0;"
-                "    gl_FragColor.a = 1.0;"
-                "}"
+                "    gl_FragColor = vec4(0.7, 0.5, 0.2, 1.0);"
+                "}");
 #else
-                "void main(float2 coord2d : POSITION,"
+                "void main(float2 in_Position : POSITION,"
                 "          out float4 out_Position : POSITION) {"
-                "    out_Position = float4(coord2d, 0.0, 1.0);"
+                "    out_Position = float4(in_Position, 0.0, 1.0);"
                 "}",
 
                 "void main(out float4 out_FragColor : COLOR) {"
-                "    out_FragColor.r = 1.0;"
-                "    out_FragColor.g = 1.0;"
-                "    out_FragColor.b = 0.0;"
-                "    out_FragColor.a = 0.0;"
+                "    out_FragColor = float4(0.7, 0.5, 0.2, 1.0);"
                 "}"
 #endif
             );
-            m_attrib = m_shader->GetAttribLocation("coord2d");
+#if !defined _XBOX
+            m_attrib = m_shader->GetAttribLocation("in_Position");
+#endif
             m_ready = true;
 
 #if !defined __CELLOS_LV2__ && !defined __ANDROID__ && !defined __APPLE__ && !defined _XBOX
@@ -119,6 +110,7 @@ public:
         m_shader->Bind();
 #if defined _XBOX
         extern D3DDevice *g_d3ddevice;
+        g_d3ddevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_CW);
         g_d3ddevice->SetVertexDeclaration(m_vdecl);
         g_d3ddevice->SetStreamSource(0, m_vbo, 0, sizeof(*m_vertices));
 #elif !defined __CELLOS_LV2__ && !defined __ANDROID__ && !defined __APPLE__
@@ -159,10 +151,12 @@ private:
 #if defined _XBOX
     D3DVertexDeclaration *m_vdecl;
     D3DVertexBuffer *m_vbo;
-#elif !defined __CELLOS_LV2__ && !defined __ANDROID__ && !defined __APPLE__
+#else
+    int m_attrib;
+#   if !defined __CELLOS_LV2__ && !defined __ANDROID__ && !defined __APPLE__
     GLuint m_vbo;
+#   endif
 #endif
-    int m_attrib;
     bool m_ready;
 };
 

test/tutorial/tut02.cpp

@@ -92,6 +92,7 @@ public:
         if (!m_ready)
         {
             m_shader = Shader::Create(
+#if !defined __CELLOS_LV2__ && !defined _XBOX
                 "#version 120\n"
                 "attribute vec3 in_Vertex;"
                 "attribute vec3 in_Color;"
@@ -108,13 +109,31 @@ public:
                 ""
                 "void main(void) {"
                 "    gl_FragColor = vec4(pass_Color, 1.0);"
-                "}");
+                "}"
+#else
+                "void main(float3 in_Vertex : POSITION,"
+                "          float3 in_Color : COLOR,"
+                "          uniform float4x4 in_Matrix,"
+                "          out float4 out_Position : POSITION,"
+                "          out float3 pass_Color : COLOR) {"
+                "    pass_Color = in_Color;"
+                "    out_Position = mul(in_Matrix, float4(in_Vertex, 1.0));"
+                "}",
+
+                "void main(float3 pass_Color : COLOR,"
+                "          out float4 out_FragColor : COLOR) {"
+                "    out_FragColor = float4(pass_Color, 1.0);"
+                "}"
+#endif
+            );
+#if !defined _XBOX
             m_coord = m_shader->GetAttribLocation("in_Vertex");
             m_color = m_shader->GetAttribLocation("in_Color");
+#endif
             m_mvp = m_shader->GetUniformLocation("in_Matrix");
             m_ready = true;
 
-#if !defined __CELLOS_LV2__ && !defined __ANDROID__ && !defined __APPLE__
+#if !defined __CELLOS_LV2__ && !defined __ANDROID__ && !defined __APPLE__ && !defined _XBOX
             /* Method 1: store vertex buffer on the GPU memory */
             glGenBuffers(1, &m_vbo);
             glBindBuffer(GL_ARRAY_BUFFER, m_vbo);
@@ -128,7 +147,43 @@ public:
             glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_ibo);
             glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(m_indices), m_indices,
                          GL_STATIC_DRAW);
+#elif defined _XBOX
+            extern D3DDevice *g_d3ddevice;
+            D3DVERTEXELEMENT9 const elements[] =
+            {
+                { 0, 0, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_POSITION, 0 },
+                { 1, 0, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_COLOR, 0 },
+                D3DDECL_END()
+            };
+            g_d3ddevice->CreateVertexDeclaration(elements, &m_vdecl);
+
+            if (FAILED(g_d3ddevice->CreateVertexBuffer(sizeof(m_vertices), D3DUSAGE_WRITEONLY, NULL, D3DPOOL_MANAGED, &m_vbo, NULL)))
+                exit(0);
+
+            vec3 *vertices;
+            if (FAILED(m_vbo->Lock(0, 0, (void **)&vertices, 0)))
+                exit(0);
+            memcpy(vertices, m_vertices, sizeof(m_vertices));
+            m_vbo->Unlock();
+
+            if (FAILED(g_d3ddevice->CreateVertexBuffer(sizeof(m_colors), D3DUSAGE_WRITEONLY, NULL, D3DPOOL_MANAGED, &m_cbo, NULL)))
+                exit(0);
+
+            vec3 *colors;
+            if (FAILED(m_cbo->Lock(0, 0, (void **)&colors, 0)))
+                exit(0);
+            memcpy(colors, m_colors, sizeof(m_colors));
+            m_cbo->Unlock();
+
+            int16_t *indices;
+            if (FAILED(g_d3ddevice->CreateIndexBuffer(sizeof(m_indices), D3DUSAGE_WRITEONLY, D3DFMT_INDEX16, D3DPOOL_MANAGED, &m_ibo, NULL)))
+                exit(0);
+            if (FAILED(m_ibo->Lock(0, 0, (void **)&indices, 0)))
+                exit(0);
+            memcpy(indices, m_indices, sizeof(m_indices));
+            m_ibo->Unlock();
 #else
+            /* TODO */
 #endif
 
             /* FIXME: this object never cleans up */
@@ -136,7 +191,15 @@ public:
 
         m_shader->Bind();
         m_shader->SetUniform(m_mvp, m_matrix);
-#if !defined __CELLOS_LV2__ && !defined __ANDROID__ && !defined __APPLE__
+#if defined _XBOX
+        extern D3DDevice *g_d3ddevice;
+        g_d3ddevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_CW);
+        g_d3ddevice->SetVertexDeclaration(m_vdecl);
+        g_d3ddevice->SetStreamSource(0, m_vbo, 0, sizeof(*m_vertices));
+        g_d3ddevice->SetStreamSource(1, m_cbo, 0, sizeof(*m_colors));
+        g_d3ddevice->SetIndices(m_ibo);
+        g_d3ddevice->DrawIndexedPrimitive(D3DPT_TRIANGLELIST, 0, 0, 0, 0, sizeof(m_indices) / sizeof(*m_indices));
+#elif !defined __CELLOS_LV2__ && !defined __ANDROID__ && !defined __APPLE__
         glEnableVertexAttribArray(m_coord);
         glBindBuffer(GL_ARRAY_BUFFER, m_vbo);
         glVertexAttribPointer(m_coord, 3, GL_FLOAT, GL_FALSE, 0, 0);
@@ -169,10 +232,17 @@ private:
     vec3 m_colors[8];
     i16vec3 m_indices[12];
     Shader *m_shader;
+#if defined _XBOX
+    D3DVertexDeclaration *m_vdecl;
+    D3DVertexBuffer *m_vbo, *m_cbo;
+    D3DIndexBuffer *m_ibo;
+#else
+    int m_coord, m_color;
 #if !defined __CELLOS_LV2__ && !defined __ANDROID__ && !defined __APPLE__
     GLuint m_vbo, m_cbo, m_ibo;
 #endif
-    int m_coord, m_color, m_mvp;
+#endif
+    int m_mvp;
     bool m_ready;
 };
 
@@ -180,9 +250,9 @@ int main(int argc, char **argv)
 {
     Application app("Tutorial 2: Cube", ivec2(640, 480), 60.0f);
 
-#if defined _MSC_VER
+#if defined _MSC_VER && !defined _XBOX
     _chdir("..");
-#elif defined _WIN32
+#elif defined _WIN32 && !defined _XBOX
     _chdir("../..");
 #endif