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author Miodrag Milanovic <mmicko@gmail.com>2017-12-01 13:22:27 +0100
committer Miodrag Milanovic <mmicko@gmail.com>2017-12-01 13:22:27 +0100
commit39176274946d70ff520f265dee8fbd16d5fe0000 (patch)
tree318801d93146752050c9a492654ae3738820e3b9 /3rdparty/bgfx/examples/19-oit/oit.cpp
parent6829ecb3b037d6bfbe0b84e818d17d712f71bce6 (diff)
Updated GENie, BGFX, BX, added BIMG since it is separated now, updated all shader binaries and MAME part of code to support new interfaces [Miodrag Milanovic]
Diffstat (limited to '3rdparty/bgfx/examples/19-oit/oit.cpp')
-rw-r--r--3rdparty/bgfx/examples/19-oit/oit.cpp396
1 files changed, 209 insertions, 187 deletions
diff --git a/3rdparty/bgfx/examples/19-oit/oit.cpp b/3rdparty/bgfx/examples/19-oit/oit.cpp
index 90c5db05c99..63905a2b89d 100644
--- a/3rdparty/bgfx/examples/19-oit/oit.cpp
+++ b/3rdparty/bgfx/examples/19-oit/oit.cpp
@@ -7,6 +7,9 @@
#include "bgfx_utils.h"
#include "imgui/imgui.h"
+namespace
+{
+
struct PosColorVertex
{
float m_x;
@@ -142,19 +145,25 @@ void screenSpaceQuad(float _textureWidth, float _textureHeight, bool _originBott
vertex[2].m_u = maxu;
vertex[2].m_v = maxv;
- bgfx::setVertexBuffer(&vb);
+ bgfx::setVertexBuffer(0, &vb);
}
}
class ExampleOIT : public entry::AppI
{
- void init(int _argc, char** _argv) BX_OVERRIDE
+public:
+ ExampleOIT(const char* _name, const char* _description)
+ : entry::AppI(_name, _description)
+ {
+ }
+
+ void init(int32_t _argc, const char* const* _argv, uint32_t _width, uint32_t _height) override
{
Args args(_argc, _argv);
- m_width = 1280;
- m_height = 720;
- m_debug = BGFX_DEBUG_TEXT;
+ m_width = _width;
+ m_height = _height;
+ m_debug = BGFX_DEBUG_NONE;
m_reset = BGFX_RESET_VSYNC;
bgfx::init(args.m_type, args.m_pciId);
@@ -206,12 +215,11 @@ class ExampleOIT : public entry::AppI
m_wbPass = loadProgram("vs_oit", "fs_oit_wb" );
m_wbBlit = loadProgram("vs_oit_blit", "fs_oit_wb_blit" );
- m_fbtextures[0].idx = bgfx::invalidHandle;
- m_fbtextures[1].idx = bgfx::invalidHandle;
- m_fbh.idx = bgfx::invalidHandle;
+ m_fbtextures[0].idx = bgfx::kInvalidHandle;
+ m_fbtextures[1].idx = bgfx::kInvalidHandle;
+ m_fbh.idx = bgfx::kInvalidHandle;
m_mode = 1;
- m_scrollArea = 0;
m_frontToBack = true;
m_fadeInOut = false;
@@ -219,25 +227,35 @@ class ExampleOIT : public entry::AppI
m_oldHeight = 0;
m_oldReset = m_reset;
+ m_mrtSupported = true
+ && 2 <= caps->limits.maxFBAttachments
+ && bgfx::isTextureValid(0, false, 1, bgfx::TextureFormat::RGBA16F, BGFX_TEXTURE_RT)
+ && bgfx::isTextureValid(0, false, 1, bgfx::TextureFormat::R16F, BGFX_TEXTURE_RT)
+ ;
+
m_timeOffset = bx::getHPCounter();
}
- int shutdown() BX_OVERRIDE
+ int shutdown() override
{
// Cleanup.
imguiDestroy();
- bgfx::destroyFrameBuffer(m_fbh);
- bgfx::destroyIndexBuffer(m_ibh);
- bgfx::destroyVertexBuffer(m_vbh);
- bgfx::destroyProgram(m_blend);
- bgfx::destroyProgram(m_wbSeparatePass);
- bgfx::destroyProgram(m_wbSeparateBlit);
- bgfx::destroyProgram(m_wbPass);
- bgfx::destroyProgram(m_wbBlit);
- bgfx::destroyUniform(s_texColor0);
- bgfx::destroyUniform(s_texColor1);
- bgfx::destroyUniform(u_color);
+ if (bgfx::isValid(m_fbh) )
+ {
+ bgfx::destroy(m_fbh);
+ }
+
+ bgfx::destroy(m_ibh);
+ bgfx::destroy(m_vbh);
+ bgfx::destroy(m_blend);
+ bgfx::destroy(m_wbSeparatePass);
+ bgfx::destroy(m_wbSeparateBlit);
+ bgfx::destroy(m_wbPass);
+ bgfx::destroy(m_wbBlit);
+ bgfx::destroy(s_texColor0);
+ bgfx::destroy(s_texColor1);
+ bgfx::destroy(u_color);
// Shutdown bgfx.
bgfx::shutdown();
@@ -245,30 +263,10 @@ class ExampleOIT : public entry::AppI
return 0;
}
- bool update() BX_OVERRIDE
+ bool update() override
{
if (!entry::processEvents(m_width, m_height, m_debug, m_reset, &m_mouseState) )
{
- if (m_oldWidth != m_width
- || m_oldHeight != m_height
- || m_oldReset != m_reset
- || !bgfx::isValid(m_fbh) )
- {
- // Recreate variable size render targets when resolution changes.
- m_oldWidth = m_width;
- m_oldHeight = m_height;
- m_oldReset = m_reset;
-
- if (bgfx::isValid(m_fbh) )
- {
- bgfx::destroyFrameBuffer(m_fbh);
- }
-
- m_fbtextures[0] = bgfx::createTexture2D(uint16_t(m_width), uint16_t(m_height), false, 1, bgfx::TextureFormat::RGBA16F, BGFX_TEXTURE_RT);
- m_fbtextures[1] = bgfx::createTexture2D(uint16_t(m_width), uint16_t(m_height), false, 1, bgfx::TextureFormat::R16F, BGFX_TEXTURE_RT);
- m_fbh = bgfx::createFrameBuffer(BX_COUNTOF(m_fbtextures), m_fbtextures, true);
- }
-
imguiBeginFrame(m_mouseState.m_mx
, m_mouseState.m_my
, (m_mouseState.m_buttons[entry::MouseButton::Left ] ? IMGUI_MBUT_LEFT : 0)
@@ -279,148 +277,167 @@ class ExampleOIT : public entry::AppI
, uint16_t(m_height)
);
- imguiBeginScrollArea("Settings", m_width - m_width / 4 - 10, 10, m_width / 4, m_height / 3, &m_scrollArea);
- imguiSeparatorLine();
+ showExampleDialog(this
+ , !m_mrtSupported
+ ? "MRT or frame buffer texture format are not supported."
+ : NULL
+ );
- imguiLabel("Blend mode:");
+ if (m_mrtSupported)
+ {
+ if (m_oldWidth != m_width
+ || m_oldHeight != m_height
+ || m_oldReset != m_reset
+ || !bgfx::isValid(m_fbh) )
+ {
+ // Recreate variable size render targets when resolution changes.
+ m_oldWidth = m_width;
+ m_oldHeight = m_height;
+ m_oldReset = m_reset;
- m_mode = imguiChoose(m_mode
- , "None"
- , "Separate"
- , "MRT Independent"
- );
+ if (bgfx::isValid(m_fbh) )
+ {
+ bgfx::destroy(m_fbh);
+ }
- imguiSeparatorLine();
+ m_fbtextures[0] = bgfx::createTexture2D(uint16_t(m_width), uint16_t(m_height), false, 1, bgfx::TextureFormat::RGBA16F, BGFX_TEXTURE_RT);
+ m_fbtextures[1] = bgfx::createTexture2D(uint16_t(m_width), uint16_t(m_height), false, 1, bgfx::TextureFormat::R16F, BGFX_TEXTURE_RT);
+ m_fbh = bgfx::createFrameBuffer(BX_COUNTOF(m_fbtextures), m_fbtextures, true);
+ }
- if (imguiCheck("Front to back", m_frontToBack) )
- {
- m_frontToBack ^= true;
- }
+ ImGui::SetNextWindowPos(
+ ImVec2(m_width - m_width / 5.0f - 10.0f, 10.0f)
+ , ImGuiSetCond_FirstUseEver
+ );
+ ImGui::Begin("Settings"
+ , NULL
+ , ImVec2(m_width / 5.0f, m_height / 3.0f)
+ , ImGuiWindowFlags_AlwaysAutoResize
+ );
- if (imguiCheck("Fade in/out", m_fadeInOut) )
- {
- m_fadeInOut ^= true;
- }
+ ImGui::Separator();
- imguiEndScrollArea();
- imguiEndFrame();
+ ImGui::Text("Blend mode:");
- // Set view 0 default viewport.
- bgfx::setViewRect(0, 0, 0, uint16_t(m_width), uint16_t(m_height) );
- bgfx::setViewRect(1, 0, 0, uint16_t(m_width), uint16_t(m_height) );
-
- 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;
-
- float time = (float)( (now-m_timeOffset)/freq);
-
- // Use debug font to print information about this example.
- bgfx::dbgTextClear();
- // Reference:
- // Weighted, Blended Order-Independent Transparency
- // http://jcgt.org/published/0002/02/09/
- // http://casual-effects.blogspot.com/2014/03/weighted-blended-order-independent.html
- bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/19-oit");
- bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Weighted, Blended Order Independent Transparency.");
- 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, -7.0f };
-
- float view[16];
- float proj[16];
-
- // Set view and projection matrix for view 0.
- bx::mtxLookAt(view, eye, at);
- mtxProj(proj, 60.0f, float(m_width)/float(m_height), 0.1f, 100.0f);
-
- bgfx::setViewTransform(0, view, proj);
-
- // Set palette color for index 0
- bgfx::setPaletteColor(0, 0.0f, 0.0f, 0.0f, 0.0f);
-
- // Set palette color for index 1
- bgfx::setPaletteColor(1, 1.0f, 1.0f, 1.0f, 1.0f);
-
- bgfx::setViewClear(0
- , BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
- , 1.0f // Depth
- , 0 // Stencil
- , 0 // FB texture 0, color palette 0
- , 1 == m_mode ? 1 : 0 // FB texture 1, color palette 1
- );
+ ImGui::RadioButton("None", &m_mode, 0);
+ ImGui::RadioButton("Separate", &m_mode, 1);
+ ImGui::RadioButton("MRT Independent", &m_mode, 2);
- bgfx::setViewClear(1
- , BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
- , 1.0f // Depth
- , 0 // Stencil
- , 0 // Color palette 0
- );
+ ImGui::Separator();
- bgfx::FrameBufferHandle invalid = BGFX_INVALID_HANDLE;
- bgfx::setViewFrameBuffer(0, 0 == m_mode ? invalid : m_fbh);
+ ImGui::Checkbox("Front to back", &m_frontToBack);
+ ImGui::Checkbox("Fade in/out", &m_fadeInOut);
- // Set view and projection matrix for view 1.
- bx::mtxIdentity(view);
- bx::mtxOrtho(proj, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 100.0f);
- bgfx::setViewTransform(1, view, proj);
+ ImGui::End();
- for (uint32_t depth = 0; depth < 3; ++depth)
- {
- uint32_t zz = m_frontToBack ? 2-depth : depth;
+ // Set view 0 default viewport.
+ bgfx::setViewRect(0, 0, 0, uint16_t(m_width), uint16_t(m_height) );
+ bgfx::setViewRect(1, 0, 0, uint16_t(m_width), uint16_t(m_height) );
- for (uint32_t yy = 0; yy < 3; ++yy)
- {
- for (uint32_t xx = 0; xx < 3; ++xx)
- {
- float color[4] = { xx*1.0f/3.0f, zz*1.0f/3.0f, yy*1.0f/3.0f, 0.5f };
+ int64_t now = bx::getHPCounter();
+ const double freq = double(bx::getHPFrequency() );
+ float time = (float)( (now-m_timeOffset)/freq);
- if (m_fadeInOut
- && zz == 1)
- {
- color[3] = bx::fsin(time*3.0f)*0.49f+0.5f;
- }
+ // Reference:
+ // Weighted, Blended Order-Independent Transparency
+ // http://jcgt.org/published/0002/02/09/
+ // http://casual-effects.blogspot.com/2014/03/weighted-blended-order-independent.html
- bgfx::setUniform(u_color, color);
-
- BX_UNUSED(time);
- float mtx[16];
- bx::mtxRotateXY(mtx, time*0.023f + xx*0.21f, time*0.03f + yy*0.37f);
- //mtxIdentity(mtx);
- mtx[12] = -2.5f + float(xx)*2.5f;
- mtx[13] = -2.5f + float(yy)*2.5f;
- mtx[14] = -2.5f + float(zz)*2.5f;
-
- // Set transform for draw call.
- bgfx::setTransform(mtx);
-
- // Set vertex and index buffer.
- bgfx::setVertexBuffer(m_vbh);
- bgfx::setIndexBuffer(m_ibh);
-
- const uint64_t state = 0
- | BGFX_STATE_CULL_CW
- | BGFX_STATE_RGB_WRITE
- | BGFX_STATE_ALPHA_WRITE
- | BGFX_STATE_DEPTH_TEST_LESS
- | BGFX_STATE_MSAA
- ;
-
- const uint64_t stateNoDepth = 0
- | BGFX_STATE_CULL_CW
- | BGFX_STATE_RGB_WRITE
- | BGFX_STATE_ALPHA_WRITE
- | BGFX_STATE_DEPTH_TEST_ALWAYS
- | BGFX_STATE_MSAA
- ;
+ float at[3] = { 0.0f, 0.0f, 0.0f };
+ float eye[3] = { 0.0f, 0.0f, -7.0f };
+
+ float view[16];
+ float proj[16];
+
+ // Set view and projection matrix for view 0.
+ bx::mtxLookAt(view, eye, at);
+ mtxProj(proj, 60.0f, float(m_width)/float(m_height), 0.1f, 100.0f);
+
+ bgfx::setViewTransform(0, view, proj);
+
+ // Set palette color for index 0
+ bgfx::setPaletteColor(0, 0.0f, 0.0f, 0.0f, 0.0f);
+
+ // Set palette color for index 1
+ bgfx::setPaletteColor(1, 1.0f, 1.0f, 1.0f, 1.0f);
+
+ bgfx::setViewClear(0
+ , BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
+ , 1.0f // Depth
+ , 0 // Stencil
+ , 0 // FB texture 0, color palette 0
+ , 1 == m_mode ? 1 : 0 // FB texture 1, color palette 1
+ );
+
+ bgfx::setViewClear(1
+ , BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
+ , 1.0f // Depth
+ , 0 // Stencil
+ , 0 // Color palette 0
+ );
+
+ bgfx::FrameBufferHandle invalid = BGFX_INVALID_HANDLE;
+ bgfx::setViewFrameBuffer(0, 0 == m_mode ? invalid : m_fbh);
+
+ // Set view and projection matrix for view 1.
+ bx::mtxIdentity(view);
- bgfx::ProgramHandle program = BGFX_INVALID_HANDLE;
- switch (m_mode)
+ const bgfx::Caps* caps = bgfx::getCaps();
+ bx::mtxOrtho(proj, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 100.0f, 0.0f, caps->homogeneousDepth);
+ bgfx::setViewTransform(1, view, proj);
+
+ for (uint32_t depth = 0; depth < 3; ++depth)
+ {
+ uint32_t zz = m_frontToBack ? 2-depth : depth;
+
+ for (uint32_t yy = 0; yy < 3; ++yy)
+ {
+ for (uint32_t xx = 0; xx < 3; ++xx)
{
+ float color[4] = { xx*1.0f/3.0f, zz*1.0f/3.0f, yy*1.0f/3.0f, 0.5f };
+
+ if (m_fadeInOut
+ && zz == 1)
+ {
+ color[3] = bx::fsin(time*3.0f)*0.49f+0.5f;
+ }
+
+ bgfx::setUniform(u_color, color);
+
+ BX_UNUSED(time);
+ float mtx[16];
+ bx::mtxRotateXY(mtx, time*0.023f + xx*0.21f, time*0.03f + yy*0.37f);
+ //mtxIdentity(mtx);
+ mtx[12] = -2.5f + float(xx)*2.5f;
+ mtx[13] = -2.5f + float(yy)*2.5f;
+ mtx[14] = -2.5f + float(zz)*2.5f;
+
+ // Set transform for draw call.
+ bgfx::setTransform(mtx);
+
+ // Set vertex and index buffer.
+ bgfx::setVertexBuffer(0, m_vbh);
+ bgfx::setIndexBuffer(m_ibh);
+
+ const uint64_t state = 0
+ | BGFX_STATE_CULL_CW
+ | BGFX_STATE_RGB_WRITE
+ | BGFX_STATE_ALPHA_WRITE
+ | BGFX_STATE_DEPTH_TEST_LESS
+ | BGFX_STATE_MSAA
+ ;
+
+ const uint64_t stateNoDepth = 0
+ | BGFX_STATE_CULL_CW
+ | BGFX_STATE_RGB_WRITE
+ | BGFX_STATE_ALPHA_WRITE
+ | BGFX_STATE_DEPTH_TEST_ALWAYS
+ | BGFX_STATE_MSAA
+ ;
+
+ bgfx::ProgramHandle program = BGFX_INVALID_HANDLE;
+ switch (m_mode)
+ {
case 0:
// Set vertex and fragment shaders.
program = m_blend;
@@ -453,28 +470,31 @@ class ExampleOIT : public entry::AppI
| BGFX_STATE_BLEND_FUNC_RT_1(BGFX_STATE_BLEND_ZERO, BGFX_STATE_BLEND_SRC_COLOR)
);
break;
- }
+ }
- // Submit primitive for rendering to view 0.
- bgfx::submit(0, program);
+ // Submit primitive for rendering to view 0.
+ bgfx::submit(0, program);
+ }
}
}
- }
- if (0 != m_mode)
- {
- bgfx::setTexture(0, s_texColor0, m_fbtextures[0]);
- bgfx::setTexture(1, s_texColor1, m_fbtextures[1]);
- bgfx::setState(0
- | BGFX_STATE_RGB_WRITE
- | BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_INV_SRC_ALPHA, BGFX_STATE_BLEND_SRC_ALPHA)
- );
- screenSpaceQuad( (float)m_width, (float)m_height, s_flipV);
- bgfx::submit(1
- , 1 == m_mode ? m_wbSeparateBlit : m_wbBlit
- );
+ if (0 != m_mode)
+ {
+ bgfx::setTexture(0, s_texColor0, m_fbtextures[0]);
+ bgfx::setTexture(1, s_texColor1, m_fbtextures[1]);
+ bgfx::setState(0
+ | BGFX_STATE_RGB_WRITE
+ | BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_INV_SRC_ALPHA, BGFX_STATE_BLEND_SRC_ALPHA)
+ );
+ screenSpaceQuad( (float)m_width, (float)m_height, s_flipV);
+ bgfx::submit(1
+ , 1 == m_mode ? m_wbSeparateBlit : m_wbBlit
+ );
+ }
}
+ imguiEndFrame();
+
// Advance to next frame. Rendering thread will be kicked to
// process submitted rendering primitives.
bgfx::frame();
@@ -490,10 +510,10 @@ class ExampleOIT : public entry::AppI
uint32_t m_debug;
uint32_t m_reset;
- uint32_t m_mode;
- int32_t m_scrollArea;
+ int32_t m_mode;
bool m_frontToBack;
bool m_fadeInOut;
+ bool m_mrtSupported;
uint32_t m_oldWidth;
uint32_t m_oldHeight;
@@ -520,4 +540,6 @@ class ExampleOIT : public entry::AppI
bgfx::FrameBufferHandle m_fbh;
};
-ENTRY_IMPLEMENT_MAIN(ExampleOIT);
+} // namespace
+
+ENTRY_IMPLEMENT_MAIN(ExampleOIT, "19-oit", "Weighted, Blended Order Independent Transparency.");