void submit(bgfx::ProgramHandle _program, float* _mtx, bool _blend)
{
for (GroupArray::const_iterator it = m_groups.begin(), itEnd = m_groups.end(); it != itEnd; ++it)
{
const Group& group = *it;
// Set model matrix for rendering.
bgfx::setTransform(_mtx);
bgfx::setProgram(_program);
bgfx::setIndexBuffer(group.m_ibh);
bgfx::setVertexBuffer(group.m_vbh);
// Set render states.
bgfx::setState(0
|BGFX_STATE_RGB_WRITE
|BGFX_STATE_ALPHA_WRITE
|(_blend?0:BGFX_STATE_DEPTH_WRITE)
|BGFX_STATE_DEPTH_TEST_LESS
|BGFX_STATE_CULL_CCW
|BGFX_STATE_MSAA
|(_blend?BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_INV_SRC_ALPHA):0)
);
// Submit primitive for rendering to view 0.
bgfx::submit(0);
}
}
void render(ImDrawData* _drawData)
{
const ImGuiIO& io = ImGui::GetIO();
const float width = io.DisplaySize.x;
const float height = io.DisplaySize.y;
bgfx::setViewName(m_viewId, "ImGui");
bgfx::setViewMode(m_viewId, bgfx::ViewMode::Sequential);
const bgfx::HMD* hmd = bgfx::getHMD();
const bgfx::Caps* caps = bgfx::getCaps();
if (NULL != hmd && 0 != (hmd->flags & BGFX_HMD_RENDERING) )
{
float proj[16];
bx::mtxProj(proj, hmd->eye[0].fov, 0.1f, 100.0f, bgfx::getCaps()->homogeneousDepth);
static float time = 0.0f;
time += 0.05f;
const float dist = 10.0f;
const float offset0 = -proj[8] + (hmd->eye[0].viewOffset[0] / dist * proj[0]);
const float offset1 = -proj[8] + (hmd->eye[1].viewOffset[0] / dist * proj[0]);
float ortho[2][16];
const float viewOffset = width/4.0f;
const float viewWidth = width/2.0f;
bx::mtxOrtho(ortho[0], viewOffset, viewOffset + viewWidth, height, 0.0f, 0.0f, 1000.0f, offset0, caps->homogeneousDepth);
bx::mtxOrtho(ortho[1], viewOffset, viewOffset + viewWidth, height, 0.0f, 0.0f, 1000.0f, offset1, caps->homogeneousDepth);
bgfx::setViewTransform(m_viewId, NULL, ortho[0], BGFX_VIEW_STEREO, ortho[1]);
bgfx::setViewRect(m_viewId, 0, 0, hmd->width, hmd->height);
}
else
{
float ortho[16];
bx::mtxOrtho(ortho, 0.0f, width, height, 0.0f, 0.0f, 1000.0f, 0.0f, caps->homogeneousDepth);
bgfx::setViewTransform(m_viewId, NULL, ortho);
bgfx::setViewRect(m_viewId, 0, 0, uint16_t(width), uint16_t(height) );
}
// Render command lists
for (int32_t ii = 0, num = _drawData->CmdListsCount; ii < num; ++ii)
{
bgfx::TransientVertexBuffer tvb;
bgfx::TransientIndexBuffer tib;
const ImDrawList* drawList = _drawData->CmdLists[ii];
uint32_t numVertices = (uint32_t)drawList->VtxBuffer.size();
uint32_t numIndices = (uint32_t)drawList->IdxBuffer.size();
if (!checkAvailTransientBuffers(numVertices, m_decl, numIndices) )
{
// not enough space in transient buffer just quit drawing the rest...
break;
}
bgfx::allocTransientVertexBuffer(&tvb, numVertices, m_decl);
bgfx::allocTransientIndexBuffer(&tib, numIndices);
ImDrawVert* verts = (ImDrawVert*)tvb.data;
bx::memCopy(verts, drawList->VtxBuffer.begin(), numVertices * sizeof(ImDrawVert) );
ImDrawIdx* indices = (ImDrawIdx*)tib.data;
bx::memCopy(indices, drawList->IdxBuffer.begin(), numIndices * sizeof(ImDrawIdx) );
uint32_t offset = 0;
for (const ImDrawCmd* cmd = drawList->CmdBuffer.begin(), *cmdEnd = drawList->CmdBuffer.end(); cmd != cmdEnd; ++cmd)
{
if (cmd->UserCallback)
{
cmd->UserCallback(drawList, cmd);
}
else if (0 != cmd->ElemCount)
{
uint64_t state = 0
| BGFX_STATE_RGB_WRITE
| BGFX_STATE_ALPHA_WRITE
| BGFX_STATE_MSAA
;
bgfx::TextureHandle th = m_texture;
bgfx::ProgramHandle program = m_program;
if (NULL != cmd->TextureId)
{
union { ImTextureID ptr; struct { bgfx::TextureHandle handle; uint8_t flags; uint8_t mip; } s; } texture = { cmd->TextureId };
state |= 0 != (IMGUI_FLAGS_ALPHA_BLEND & texture.s.flags)
? BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_INV_SRC_ALPHA)
: BGFX_STATE_NONE
;
th = texture.s.handle;
if (0 != texture.s.mip)
{
const float lodEnabled[4] = { float(texture.s.mip), 1.0f, 0.0f, 0.0f };
bgfx::setUniform(u_imageLodEnabled, lodEnabled);
program = m_imageProgram;
}
}
else
{
state |= BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_INV_SRC_ALPHA);
}
const uint16_t xx = uint16_t(bx::fmax(cmd->ClipRect.x, 0.0f) );
const uint16_t yy = uint16_t(bx::fmax(cmd->ClipRect.y, 0.0f) );
bgfx::setScissor(xx, yy
, uint16_t(bx::fmin(cmd->ClipRect.z, 65535.0f)-xx)
, uint16_t(bx::fmin(cmd->ClipRect.w, 65535.0f)-yy)
);
bgfx::setState(state);
bgfx::setTexture(0, s_tex, th);
bgfx::setVertexBuffer(0, &tvb, 0, numVertices);
bgfx::setIndexBuffer(&tib, offset, cmd->ElemCount);
bgfx::submit(cmd->ViewId, program);
}
offset += cmd->ElemCount;
}
}
}
void render(ImDrawData* draw_data)
{
const float width = ImGui::GetIO().DisplaySize.x;
const float height = ImGui::GetIO().DisplaySize.y;
float ortho[16];
bx::mtxOrtho(ortho, 0.0f, width, height, 0.0f, -1.0f, 1.0f);
bgfx::setViewTransform(m_viewId, NULL, ortho);
// Render command lists
for (int32_t ii = 0; ii < draw_data->CmdListsCount; ++ii)
{
bgfx::TransientVertexBuffer tvb;
bgfx::TransientIndexBuffer tib;
const ImDrawList* cmd_list = draw_data->CmdLists[ii];
uint32_t vtx_size = (uint32_t)cmd_list->VtxBuffer.size();
uint32_t idx_size = (uint32_t)cmd_list->IdxBuffer.size();
if (!bgfx::checkAvailTransientVertexBuffer(vtx_size, m_decl) || !bgfx::checkAvailTransientIndexBuffer(idx_size) )
{
// not enough space in transient buffer just quit drawing the rest...
break;
}
bgfx::allocTransientVertexBuffer(&tvb, vtx_size, m_decl);
bgfx::allocTransientIndexBuffer(&tib, idx_size);
ImDrawVert* verts = (ImDrawVert*)tvb.data;
memcpy(verts, cmd_list->VtxBuffer.begin(), vtx_size * sizeof(ImDrawVert) );
ImDrawIdx* indices = (ImDrawIdx*)tib.data;
memcpy(indices, cmd_list->IdxBuffer.begin(), idx_size * sizeof(ImDrawIdx) );
uint32_t elem_offset = 0;
const ImDrawCmd* pcmd_begin = cmd_list->CmdBuffer.begin();
const ImDrawCmd* pcmd_end = cmd_list->CmdBuffer.end();
for (const ImDrawCmd* pcmd = pcmd_begin; pcmd != pcmd_end; pcmd++)
{
if (pcmd->UserCallback)
{
pcmd->UserCallback(cmd_list, pcmd);
elem_offset += pcmd->ElemCount;
continue;
}
if (0 == pcmd->ElemCount)
{
continue;
}
bgfx::setState(0
| BGFX_STATE_RGB_WRITE
| BGFX_STATE_ALPHA_WRITE
| BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_INV_SRC_ALPHA)
| BGFX_STATE_MSAA
);
bgfx::setScissor(uint16_t(bx::fmax(pcmd->ClipRect.x, 0.0f) )
, uint16_t(bx::fmax(pcmd->ClipRect.y, 0.0f) )
, uint16_t(bx::fmin(pcmd->ClipRect.z, 65535.0f)-bx::fmax(pcmd->ClipRect.x, 0.0f) )
, uint16_t(bx::fmin(pcmd->ClipRect.w, 65535.0f)-bx::fmax(pcmd->ClipRect.y, 0.0f) )
);
union { void* ptr; bgfx::TextureHandle handle; } texture = { pcmd->TextureId };
bgfx::setTexture(0, s_tex, 0 != texture.handle.idx
? texture.handle
: m_texture
);
bgfx::setVertexBuffer(&tvb, 0, vtx_size);
bgfx::setIndexBuffer(&tib, elem_offset, pcmd->ElemCount);
bgfx::setProgram(m_program);
bgfx::submit(m_viewId);
elem_offset += pcmd->ElemCount;
}
}
}
int _main_(int /*_argc*/, char** /*_argv*/)
{
// Create vertex stream declaration.
PosColorVertex::init();
PosColorTexCoord0Vertex::init();
uint32_t width = 1280;
uint32_t height = 720;
uint32_t debug = BGFX_DEBUG_TEXT;
uint32_t reset = BGFX_RESET_VSYNC;
bgfx::init();
bgfx::reset(width, height, reset);
// Enable debug text.
bgfx::setDebug(debug);
// Get renderer capabilities info.
const bgfx::Caps* caps = bgfx::getCaps();
// Setup root path for binary shaders. Shader binaries are different
// for each renderer.
switch (caps->rendererType)
{
default:
break;
case bgfx::RendererType::OpenGL:
case bgfx::RendererType::OpenGLES:
s_flipV = true;
break;
}
// Imgui.
void* data = load("font/droidsans.ttf");
imguiCreate(data);
free(data);
const bgfx::Memory* mem;
// Create static vertex buffer.
mem = bgfx::makeRef(s_cubeVertices, sizeof(s_cubeVertices) );
bgfx::VertexBufferHandle vbh = bgfx::createVertexBuffer(mem, PosColorVertex::ms_decl);
// Create static index buffer.
mem = bgfx::makeRef(s_cubeIndices, sizeof(s_cubeIndices) );
bgfx::IndexBufferHandle ibh = bgfx::createIndexBuffer(mem);
// Create texture sampler uniforms.
bgfx::UniformHandle u_texColor0 = bgfx::createUniform("u_texColor0", bgfx::UniformType::Uniform1iv);
bgfx::UniformHandle u_texColor1 = bgfx::createUniform("u_texColor1", bgfx::UniformType::Uniform1iv);
bgfx::UniformHandle u_color = bgfx::createUniform("u_color", bgfx::UniformType::Uniform4fv);
bgfx::ProgramHandle blend = loadProgram("vs_oit", "fs_oit" );
bgfx::ProgramHandle wbSeparatePass = loadProgram("vs_oit", "fs_oit_wb_separate" );
bgfx::ProgramHandle wbSeparateBlit = loadProgram("vs_oit_blit", "fs_oit_wb_separate_blit" );
bgfx::ProgramHandle wbPass = loadProgram("vs_oit", "fs_oit_wb" );
bgfx::ProgramHandle wbBlit = loadProgram("vs_oit_blit", "fs_oit_wb_blit" );
bgfx::TextureHandle fbtextures[2] = { BGFX_INVALID_HANDLE, BGFX_INVALID_HANDLE };
bgfx::FrameBufferHandle fbh = BGFX_INVALID_HANDLE;
int64_t timeOffset = bx::getHPCounter();
uint32_t mode = 1;
int32_t scrollArea = 0;
bool frontToBack = true;
bool fadeInOut = false;
uint32_t oldWidth = 0;
uint32_t oldHeight = 0;
uint32_t oldReset = reset;
entry::MouseState mouseState;
while (!entry::processEvents(width, height, debug, reset, &mouseState) )
{
if (oldWidth != width
|| oldHeight != height
|| oldReset != reset
|| !bgfx::isValid(fbh) )
{
// Recreate variable size render targets when resolution changes.
oldWidth = width;
oldHeight = height;
oldReset = reset;
if (bgfx::isValid(fbh) )
{
bgfx::destroyFrameBuffer(fbh);
}
fbtextures[0] = bgfx::createTexture2D(width, height, 1, bgfx::TextureFormat::RGBA16F, BGFX_TEXTURE_RT);
fbtextures[1] = bgfx::createTexture2D(width, height, 1, bgfx::TextureFormat::R16F, BGFX_TEXTURE_RT);
fbh = bgfx::createFrameBuffer(BX_COUNTOF(fbtextures), fbtextures, true);
}
imguiBeginFrame(mouseState.m_mx
, mouseState.m_my
, (mouseState.m_buttons[entry::MouseButton::Left ] ? IMGUI_MBUT_LEFT : 0)
| (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
, 0
, width
, height
);
imguiBeginScrollArea("Settings", width - width / 4 - 10, 10, width / 4, height / 3, &scrollArea);
imguiSeparatorLine();
imguiLabel("Blend mode:");
mode = imguiChoose(mode
, "None"
, "Separate"
, "MRT Independent"
);
imguiSeparatorLine();
if (imguiCheck("Front to back", frontToBack) )
{
frontToBack ^= true;
}
if (imguiCheck("Fade in/out", fadeInOut) )
{
fadeInOut ^= true;
}
imguiEndScrollArea();
imguiEndFrame();
// Set view 0 default viewport.
bgfx::setViewRectMask(0x3, 0, 0, width, 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-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);
bx::mtxProj(proj, 60.0f, float(width)/float(height), 0.1f, 100.0f);
bgfx::setViewTransform(0, view, proj);
bgfx::setViewClearMask(0x3
, BGFX_CLEAR_COLOR_BIT|BGFX_CLEAR_DEPTH_BIT
, 0x00000000
, 1.0f
, 0
);
bgfx::FrameBufferHandle invalid = BGFX_INVALID_HANDLE;
bgfx::setViewFrameBuffer(0, 0 == mode ? invalid : fbh);
// 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);
for (uint32_t depth = 0; depth < 3; ++depth)
{
uint32_t zz = 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 (fadeInOut
&& zz == 1)
{
color[3] = sinf(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; //0.0f; // sinf(time + ( (xx+1)*(yy+1)/9.0f)*float(M_PI) )*50.0f+50.0f; //90.0f - (xx+1)*(yy+1)*10.0f;
// Set transform for draw call.
bgfx::setTransform(mtx);
// Set vertex and index buffer.
bgfx::setVertexBuffer(vbh);
bgfx::setIndexBuffer(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
;
switch (mode)
{
case 0:
// Set vertex and fragment shaders.
bgfx::setProgram(blend);
// Set render states.
bgfx::setState(state
| BGFX_STATE_BLEND_ALPHA
);
break;
case 1:
// Set vertex and fragment shaders.
bgfx::setProgram(wbSeparatePass);
// Set render states.
bgfx::setState(state
| BGFX_STATE_BLEND_FUNC_SEPARATE(BGFX_STATE_BLEND_ONE, BGFX_STATE_BLEND_ONE, BGFX_STATE_BLEND_ZERO, BGFX_STATE_BLEND_INV_SRC_ALPHA)
);
break;
default:
// Set vertex and fragment shaders.
bgfx::setProgram(wbPass);
// Set render states.
bgfx::setState(state
| BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_ONE, BGFX_STATE_BLEND_ONE)
| BGFX_STATE_BLEND_INDEPENDENT
, 0
| 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);
}
}
}
if (0 != mode)
{
bgfx::setTexture(0, u_texColor0, fbtextures[0]);
bgfx::setTexture(1, u_texColor1, fbtextures[1]);
bgfx::setProgram(1 == mode ? wbSeparateBlit : wbBlit);
bgfx::setState(0
| BGFX_STATE_RGB_WRITE
| BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_INV_SRC_ALPHA, BGFX_STATE_BLEND_SRC_ALPHA)
);
screenSpaceQuad( (float)width, (float)height, s_flipV);
bgfx::submit(1);
}
// Advance to next frame. Rendering thread will be kicked to
// process submitted rendering primitives.
bgfx::frame();
}
// Cleanup.
imguiDestroy();
bgfx::destroyFrameBuffer(fbh);
bgfx::destroyIndexBuffer(ibh);
bgfx::destroyVertexBuffer(vbh);
bgfx::destroyProgram(blend);
bgfx::destroyProgram(wbSeparatePass);
bgfx::destroyProgram(wbSeparateBlit);
bgfx::destroyProgram(wbPass);
bgfx::destroyProgram(wbBlit);
bgfx::destroyUniform(u_texColor0);
bgfx::destroyUniform(u_texColor1);
bgfx::destroyUniform(u_color);
// Shutdown bgfx.
bgfx::shutdown();
return 0;
}
void render(ImDrawData* _drawData)
{
const ImGuiIO& io = ImGui::GetIO();
const float width = io.DisplaySize.x;
const float height = io.DisplaySize.y;
{
float ortho[16];
bx::mtxOrtho(ortho, 0.0f, width, height, 0.0f, -1.0f, 1.0f);
bgfx::setViewTransform(m_viewId, NULL, ortho);
}
#if USE_ENTRY
for (uint32_t ii = 1; ii < BX_COUNTOF(m_window); ++ii)
{
Window& window = m_window[ii];
if (bgfx::isValid(window.m_fbh) )
{
const uint8_t viewId = window.m_viewId;
bgfx::setViewClear(viewId
, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
, 0x303030ff
, 1.0f
, 0
);
bgfx::setViewFrameBuffer(viewId, window.m_fbh);
bgfx::setViewRect(viewId
, 0
, 0
, window.m_state.m_width
, window.m_state.m_height
);
float ortho[16];
bx::mtxOrtho(ortho
, 0.0f
, float(window.m_state.m_width)
, float(window.m_state.m_height)
, 0.0f
, -1.0f
, 1.0f
);
bgfx::setViewTransform(viewId
, NULL
, ortho
);
}
}
#endif // USE_ENTRY
// Render command lists
for (int32_t ii = 0, num = _drawData->CmdListsCount; ii < num; ++ii)
{
bgfx::TransientVertexBuffer tvb;
bgfx::TransientIndexBuffer tib;
const ImDrawList* drawList = _drawData->CmdLists[ii];
uint32_t numVertices = (uint32_t)drawList->VtxBuffer.size();
uint32_t numIndices = (uint32_t)drawList->IdxBuffer.size();
if (!bgfx::checkAvailTransientVertexBuffer(numVertices, m_decl)
|| !bgfx::checkAvailTransientIndexBuffer(numIndices) )
{
// not enough space in transient buffer just quit drawing the rest...
break;
}
bgfx::allocTransientVertexBuffer(&tvb, numVertices, m_decl);
bgfx::allocTransientIndexBuffer(&tib, numIndices);
ImDrawVert* verts = (ImDrawVert*)tvb.data;
memcpy(verts, drawList->VtxBuffer.begin(), numVertices * sizeof(ImDrawVert) );
ImDrawIdx* indices = (ImDrawIdx*)tib.data;
memcpy(indices, drawList->IdxBuffer.begin(), numIndices * sizeof(ImDrawIdx) );
uint32_t offset = 0;
for (const ImDrawCmd* cmd = drawList->CmdBuffer.begin(), *cmdEnd = drawList->CmdBuffer.end(); cmd != cmdEnd; ++cmd)
{
if (cmd->UserCallback)
{
cmd->UserCallback(drawList, cmd);
}
else if (0 != cmd->ElemCount)
{
uint64_t state = 0
| BGFX_STATE_RGB_WRITE
| BGFX_STATE_ALPHA_WRITE
| BGFX_STATE_MSAA
;
bgfx::TextureHandle th = m_texture;
bgfx::ProgramHandle program = m_program;
if (NULL != cmd->TextureId)
{
union { ImTextureID ptr; struct { bgfx::TextureHandle handle; uint8_t flags; uint8_t mip; } s; } texture = { cmd->TextureId };
state |= 0 != (IMGUI_FLAGS_ALPHA_BLEND & texture.s.flags)
? BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_INV_SRC_ALPHA)
: BGFX_STATE_NONE
;
th = texture.s.handle;
if (0 != texture.s.mip)
{
extern bgfx::ProgramHandle imguiGetImageProgram(uint8_t _mip);
program = imguiGetImageProgram(texture.s.mip);
}
}
else
{
state |= BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_INV_SRC_ALPHA);
}
const uint16_t xx = uint16_t(bx::fmax(cmd->ClipRect.x, 0.0f) );
const uint16_t yy = uint16_t(bx::fmax(cmd->ClipRect.y, 0.0f) );
bgfx::setScissor(xx, yy
, uint16_t(bx::fmin(cmd->ClipRect.z, 65535.0f)-xx)
, uint16_t(bx::fmin(cmd->ClipRect.w, 65535.0f)-yy)
);
bgfx::setState(state);
bgfx::setTexture(0, s_tex, th);
bgfx::setVertexBuffer(&tvb, 0, numVertices);
bgfx::setIndexBuffer(&tib, offset, cmd->ElemCount);
bgfx::submit(cmd->ViewId, program);
}
offset += cmd->ElemCount;
}
}
}
void QuadRenderer::submit()
{
if (quadCount <= 0)
{
return;
}
numFrameSubmit++;
if (Texture::sTextureInfos[currentTexture].handle.idx != MARKEDTEXTURE)
{
// On iPad 1, the PosColorTex shader, which multiplies texture color with
// vertex color, is 5x slower than PosTex, which just draws the texture
// unmodified. So we do this.
if(sTinted)
bgfx::setProgram(sProgramPosColorTex);
else
bgfx::setProgram(sProgramPosTex);
lmAssert(sIndexBufferHandle.idx != bgfx::invalidHandle, "No index buffer!");
bgfx::setIndexBuffer(sIndexBufferHandle, currentIndexBufferIdx, (quadCount * 6));
bgfx::setVertexBuffer(vertexBuffers[currentVertexBufferIdx], MAXBATCHQUADS * 4);
// set U and V wrap modes (repeat / mirror / clamp)
uint32_t textureFlags = BGFX_TEXTURE_W_CLAMP;
///U
switch(Texture::sTextureInfos[currentTexture].wrapU)
{
case TEXTUREINFO_WRAP_REPEAT:
textureFlags |= BGFX_TEXTURE_NONE;
break;
case TEXTUREINFO_WRAP_MIRROR:
textureFlags |= BGFX_TEXTURE_U_MIRROR;
break;
case TEXTUREINFO_WRAP_CLAMP:
textureFlags |= BGFX_TEXTURE_U_CLAMP;
break;
}
///V
switch(Texture::sTextureInfos[currentTexture].wrapV)
{
case TEXTUREINFO_WRAP_REPEAT:
textureFlags |= BGFX_TEXTURE_NONE;
break;
case TEXTUREINFO_WRAP_MIRROR:
textureFlags |= BGFX_TEXTURE_V_MIRROR;
break;
case TEXTUREINFO_WRAP_CLAMP:
textureFlags |= BGFX_TEXTURE_V_CLAMP;
break;
}
// set smoothing mode, bgfx default is bilinear
switch (Texture::sTextureInfos[currentTexture].smoothing)
{
// use nearest neighbor
case TEXTUREINFO_SMOOTHING_NONE:
textureFlags |= BGFX_TEXTURE_MIN_POINT;
textureFlags |= BGFX_TEXTURE_MAG_POINT;
textureFlags |= BGFX_TEXTURE_MIP_POINT;
break;
}
bgfx::setTexture(0, sUniformTexColor, Texture::sTextureInfos[currentTexture].handle, textureFlags);
// Set render states.
bgfx::setState(0
| BGFX_STATE_RGB_WRITE
| BGFX_STATE_ALPHA_WRITE
//|BGFX_STATE_DEPTH_WRITE
//|BGFX_STATE_DEPTH_TEST_LESS
| BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_INV_SRC_ALPHA)
);
bgfx::submit(Graphics::getView());
currentIndexBufferIdx += quadCount * 6;
}
quadCount = 0;
}
void render(ImDrawList** const _lists, int _count)
{
const float width = ImGui::GetIO().DisplaySize.x;
const float height = ImGui::GetIO().DisplaySize.y;
float ortho[16];
bx::mtxOrtho(ortho, 0.0f, width, height, 0.0f, -1.0f, 1.0f);
bgfx::setViewTransform(m_viewId, NULL, ortho);
// Render command lists
for (int32_t ii = 0; ii < _count; ++ii)
{
bgfx::TransientVertexBuffer tvb;
uint32_t vtx_size = 0;
const ImDrawList* cmd_list = _lists[ii];
const ImDrawVert* vtx_buffer = cmd_list->vtx_buffer.begin();
const ImDrawCmd* pcmd_begin = cmd_list->commands.begin();
const ImDrawCmd* pcmd_end = cmd_list->commands.end();
for (const ImDrawCmd* pcmd = pcmd_begin; pcmd != pcmd_end; pcmd++)
{
vtx_size += (uint32_t)pcmd->vtx_count;
}
if (!bgfx::checkAvailTransientVertexBuffer(vtx_size, m_decl))
{
// not enough space in transient buffer just quit drawing the rest...
break;
}
bgfx::allocTransientVertexBuffer(&tvb, vtx_size, m_decl);
ImDrawVert* verts = (ImDrawVert*)tvb.data;
memcpy(verts, vtx_buffer, vtx_size * sizeof(ImDrawVert));
uint32_t vtx_offset = 0;
for (const ImDrawCmd* pcmd = pcmd_begin; pcmd != pcmd_end; pcmd++)
{
bgfx::setState(0
| BGFX_STATE_RGB_WRITE
| BGFX_STATE_ALPHA_WRITE
| BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_INV_SRC_ALPHA)
| BGFX_STATE_MSAA
);
bgfx::setScissor(uint16_t(pcmd->clip_rect.x)
, uint16_t(pcmd->clip_rect.y)
, uint16_t(pcmd->clip_rect.z-pcmd->clip_rect.x)
, uint16_t(pcmd->clip_rect.w-pcmd->clip_rect.y)
);
union { void* ptr; bgfx::TextureHandle handle; } texture = { pcmd->texture_id };
bgfx::setTexture(0, s_tex, 0 != texture.handle.idx
? texture.handle
: m_texture
);
bgfx::setVertexBuffer(&tvb, vtx_offset, pcmd->vtx_count);
bgfx::setProgram(m_program);
bgfx::submit(m_viewId);
vtx_offset += pcmd->vtx_count;
}
}
}
