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author ImJezze <jezze@gmx.net>2016-03-12 12:31:13 +0100
committer ImJezze <jezze@gmx.net>2016-03-12 12:31:13 +0100
commita026a582f1a0ea8c1ede3acaddacef506ef3f3b0 (patch)
treee31573822f2359677de519f9f3b600d98e8764cd /3rdparty/bgfx/examples/03-raymarch/raymarch.cpp
parent477d2abd43984f076b7e45f5527591fa8fd0d241 (diff)
parentdcab55bf53b94713a6f72e9633f5101c8dd6c08c (diff)
Merge pull request #15 from mamedev/master
Sync to base master
Diffstat (limited to '3rdparty/bgfx/examples/03-raymarch/raymarch.cpp')
-rw-r--r--3rdparty/bgfx/examples/03-raymarch/raymarch.cpp269
1 files changed, 147 insertions, 122 deletions
diff --git a/3rdparty/bgfx/examples/03-raymarch/raymarch.cpp b/3rdparty/bgfx/examples/03-raymarch/raymarch.cpp
index df07fc7ea42..60a4664546e 100644
--- a/3rdparty/bgfx/examples/03-raymarch/raymarch.cpp
+++ b/3rdparty/bgfx/examples/03-raymarch/raymarch.cpp
@@ -102,138 +102,163 @@ void renderScreenSpaceQuad(uint32_t _view, bgfx::ProgramHandle _program, float _
}
}
-int _main_(int _argc, char** _argv)
+class ExampleRaymarch : public entry::AppI
{
- Args args(_argc, _argv);
-
- uint32_t width = 1280;
- uint32_t height = 720;
- uint32_t debug = BGFX_DEBUG_TEXT;
- uint32_t reset = BGFX_RESET_VSYNC;
-
- bgfx::init(args.m_type, args.m_pciId);
- bgfx::reset(width, height, reset);
-
- // Enable debug text.
- bgfx::setDebug(debug);
-
- // Set view 0 clear state.
- bgfx::setViewClear(0
- , BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
- , 0x303030ff
- , 1.0f
- , 0
- );
-
- // Setup root path for binary shaders. Shader binaries are different
- // for each renderer.
- switch (bgfx::getRendererType() )
+ void init(int _argc, char** _argv) BX_OVERRIDE
{
- default:
- break;
-
- case bgfx::RendererType::OpenGL:
- case bgfx::RendererType::OpenGLES:
- s_oglNdc = true;
- break;
+ Args args(_argc, _argv);
+
+ m_width = 1280;
+ m_height = 720;
+ m_debug = BGFX_DEBUG_TEXT;
+ m_reset = BGFX_RESET_VSYNC;
+
+ bgfx::init(args.m_type, args.m_pciId);
+ bgfx::reset(m_width, m_height, m_reset);
+
+ // Enable debug text.
+ bgfx::setDebug(m_debug);
+
+ // Set view 0 clear state.
+ bgfx::setViewClear(0
+ , BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
+ , 0x303030ff
+ , 1.0f
+ , 0
+ );
+
+ // Setup root path for binary shaders. Shader binaries are different
+ // for each renderer.
+ switch (bgfx::getRendererType() )
+ {
+ default:
+ break;
+
+ case bgfx::RendererType::OpenGL:
+ case bgfx::RendererType::OpenGLES:
+ s_oglNdc = true;
+ break;
+ }
+
+ // Create vertex stream declaration.
+ PosColorTexCoord0Vertex::init();
+
+ u_mtx = bgfx::createUniform("u_mtx", bgfx::UniformType::Mat4);
+ u_lightDirTime = bgfx::createUniform("u_lightDirTime", bgfx::UniformType::Vec4);
+
+ // Create program from shaders.
+ m_program = loadProgram("vs_raymarching", "fs_raymarching");
+
+ m_timeOffset = bx::getHPCounter();
}
- // Create vertex stream declaration.
- PosColorTexCoord0Vertex::init();
+ int shutdown() BX_OVERRIDE
+ {
+ // Cleanup.
+ bgfx::destroyProgram(m_program);
- bgfx::UniformHandle u_mtx = bgfx::createUniform("u_mtx", bgfx::UniformType::Mat4);
- bgfx::UniformHandle u_lightDirTime = bgfx::createUniform("u_lightDirTime", bgfx::UniformType::Vec4);
+ bgfx::destroyUniform(u_mtx);
+ bgfx::destroyUniform(u_lightDirTime);
- // Create program from shaders.
- bgfx::ProgramHandle raymarching = loadProgram("vs_raymarching", "fs_raymarching");
+ // Shutdown bgfx.
+ bgfx::shutdown();
- int64_t timeOffset = bx::getHPCounter();
+ return 0;
+ }
- while (!entry::processEvents(width, height, debug, reset) )
+ bool update() BX_OVERRIDE
{
- // Set view 0 default viewport.
- bgfx::setViewRect(0, 0, 0, width, height);
-
- // Set view 1 default viewport.
- bgfx::setViewRect(1, 0, 0, width, height);
-
- // This dummy draw call is here to make sure that view 0 is cleared
- // if no other draw calls are submitted to viewZ 0.
- bgfx::touch(0);
-
- int64_t now = bx::getHPCounter();
- static int64_t last = now;
- const int64_t frameTime = now - last;
- last = now;
- const double freq = double(bx::getHPFrequency() );
- const double toMs = 1000.0/freq;
-
- // Use debug font to print information about this example.
- bgfx::dbgTextClear();
- bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/03-raymarch");
- bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Updating shader uniforms.");
- bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);
-
- float at[3] = { 0.0f, 0.0f, 0.0f };
- float eye[3] = { 0.0f, 0.0f, -15.0f };
-
- float view[16];
- float proj[16];
- bx::mtxLookAt(view, eye, at);
- mtxProj(proj, 60.0f, float(width)/float(height), 0.1f, 100.0f);
-
- // Set view and projection matrix for view 1.
- bgfx::setViewTransform(0, view, proj);
-
- float ortho[16];
- bx::mtxOrtho(ortho, 0.0f, 1280.0f, 720.0f, 0.0f, 0.0f, 100.0f);
-
- // Set view and projection matrix for view 0.
- bgfx::setViewTransform(1, NULL, ortho);
-
- float time = (float)( (bx::getHPCounter()-timeOffset)/double(bx::getHPFrequency() ) );
-
- float vp[16];
- bx::mtxMul(vp, view, proj);
-
- float mtx[16];
- bx::mtxRotateXY(mtx
- , time
- , time*0.37f
- );
-
- float mtxInv[16];
- bx::mtxInverse(mtxInv, mtx);
- float lightDirModel[4] = { -0.4f, -0.5f, -1.0f, 0.0f };
- float lightDirModelN[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
- bx::vec3Norm(lightDirModelN, lightDirModel);
- float lightDirTime[4];
- bx::vec4MulMtx(lightDirTime, lightDirModelN, mtxInv);
- lightDirTime[3] = time;
- bgfx::setUniform(u_lightDirTime, lightDirTime);
-
- float mvp[16];
- bx::mtxMul(mvp, mtx, vp);
-
- float invMvp[16];
- bx::mtxInverse(invMvp, mvp);
- bgfx::setUniform(u_mtx, invMvp);
-
- renderScreenSpaceQuad(1, raymarching, 0.0f, 0.0f, 1280.0f, 720.0f);
-
- // Advance to next frame. Rendering thread will be kicked to
- // process submitted rendering primitives.
- bgfx::frame();
+ if (!entry::processEvents(m_width, m_height, m_debug, m_reset) )
+ {
+ // Set view 0 default viewport.
+ bgfx::setViewRect(0, 0, 0, m_width, m_height);
+
+ // Set view 1 default viewport.
+ bgfx::setViewRect(1, 0, 0, m_width, m_height);
+
+ // This dummy draw call is here to make sure that view 0 is cleared
+ // if no other draw calls are submitted to viewZ 0.
+ bgfx::touch(0);
+
+ int64_t now = bx::getHPCounter();
+ static int64_t last = now;
+ const int64_t frameTime = now - last;
+ last = now;
+ const double freq = double(bx::getHPFrequency() );
+ const double toMs = 1000.0/freq;
+
+ // Use debug font to print information about this example.
+ bgfx::dbgTextClear();
+ bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/03-raymarch");
+ bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Updating shader uniforms.");
+ bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);
+
+ float at[3] = { 0.0f, 0.0f, 0.0f };
+ float eye[3] = { 0.0f, 0.0f, -15.0f };
+
+ float view[16];
+ float proj[16];
+ bx::mtxLookAt(view, eye, at);
+ mtxProj(proj, 60.0f, float(m_width)/float(m_height), 0.1f, 100.0f);
+
+ // Set view and projection matrix for view 1.
+ bgfx::setViewTransform(0, view, proj);
+
+ float ortho[16];
+ bx::mtxOrtho(ortho, 0.0f, 1280.0f, 720.0f, 0.0f, 0.0f, 100.0f);
+
+ // Set view and projection matrix for view 0.
+ bgfx::setViewTransform(1, NULL, ortho);
+
+ float time = (float)( (bx::getHPCounter()-m_timeOffset)/double(bx::getHPFrequency() ) );
+
+ float vp[16];
+ bx::mtxMul(vp, view, proj);
+
+ float mtx[16];
+ bx::mtxRotateXY(mtx
+ , time
+ , time*0.37f
+ );
+
+ float mtxInv[16];
+ bx::mtxInverse(mtxInv, mtx);
+ float lightDirModel[4] = { -0.4f, -0.5f, -1.0f, 0.0f };
+ float lightDirModelN[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
+ bx::vec3Norm(lightDirModelN, lightDirModel);
+ float lightDirTime[4];
+ bx::vec4MulMtx(lightDirTime, lightDirModelN, mtxInv);
+ lightDirTime[3] = time;
+ bgfx::setUniform(u_lightDirTime, lightDirTime);
+
+ float mvp[16];
+ bx::mtxMul(mvp, mtx, vp);
+
+ float invMvp[16];
+ bx::mtxInverse(invMvp, mvp);
+ bgfx::setUniform(u_mtx, invMvp);
+
+ renderScreenSpaceQuad(1, m_program, 0.0f, 0.0f, 1280.0f, 720.0f);
+
+ // Advance to next frame. Rendering thread will be kicked to
+ // process submitted rendering primitives.
+ bgfx::frame();
+
+ return true;
+ }
+
+ return false;
}
- // Cleanup.
- bgfx::destroyProgram(raymarching);
+ uint32_t m_width;
+ uint32_t m_height;
+ uint32_t m_debug;
+ uint32_t m_reset;
- bgfx::destroyUniform(u_mtx);
- bgfx::destroyUniform(u_lightDirTime);
-
- // Shutdown bgfx.
- bgfx::shutdown();
+ int64_t m_timeOffset;
+ bgfx::UniformHandle u_mtx;
+ bgfx::UniformHandle u_lightDirTime;
+ bgfx::ProgramHandle m_program;
+};
- return 0;
-}
+ENTRY_IMPLEMENT_MAIN(ExampleRaymarch);