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Cleanup.

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This commit is contained in:
Бранимир Караџић
2021-04-01 20:09:16 -07:00
parent 117b5ec4ee
commit 0df2e90edb
4 changed files with 88 additions and 60 deletions
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57
examples/05-instancing/instancing.cpp
View File

@@ -75,9 +75,9 @@ public:
m_height = _height;
m_debug = BGFX_DEBUG_TEXT;
m_reset = BGFX_RESET_VSYNC;
m_use_instancing = true;
m_last_frame_missing = 0;
m_side_size = 11;
m_useInstancing = true;
m_lastFrameMissing = 0;
m_sideSize = 11;
bgfx::Init init;
init.type = args.m_type;
@@ -166,14 +166,27 @@ public:
, 0
);
// Get renderer capabilities info.
const bgfx::Caps* caps = bgfx::getCaps();
// Check if instancing is supported.
const bool instancingSupported = 0 != (BGFX_CAPS_INSTANCING & caps->supported);
m_useInstancing &= instancingSupported;
ImGui::Text("%d draw calls", bgfx::getStats()->numDraw);
ImGui::Checkbox("Use Instancing", &m_use_instancing);
ImGui::PushEnabled(instancingSupported);
ImGui::Checkbox("Use Instancing", &m_useInstancing);
ImGui::PopEnabled();
ImGui::Text("Grid Side Size:");
ImGui::SliderInt("", (int*)&m_side_size, 1, 512);
if (m_last_frame_missing > 0)
ImGui::SliderInt("", (int*)&m_sideSize, 1, 512);
if (m_lastFrameMissing > 0)
{
ImGui::TextColored(ImVec4(1.0f, 0.0f, 0.0f, 1.0f), "Couldn't draw %d cubes last frame", m_last_frame_missing);
ImGui::TextColored(ImVec4(1.0f, 0.0f, 0.0f, 1.0f), "Couldn't draw %d cubes last frame", m_lastFrameMissing);
}
if (bgfx::getStats()->numDraw >= bgfx::getCaps()->limits.maxDrawCalls)
{
ImGui::TextColored(ImVec4(1.0f, 0.0f, 0.0f, 1.0f), "Draw call limit reached!");
@@ -192,18 +205,14 @@ public:
float time = (float)( (bx::getHPCounter() - m_timeOffset)/double(bx::getHPFrequency() ) );
// Get renderer capabilities info.
const bgfx::Caps* caps = bgfx::getCaps();
// Check if instancing is supported.
if (0 == (BGFX_CAPS_INSTANCING & caps->supported) )
if (!instancingSupported)
{
// When instancing is not supported by GPU, implement alternative
// code path that doesn't use instancing.
bool blink = uint32_t(time*3.0f)&1;
bgfx::dbgTextPrintf(0, 0, blink ? 0x4f : 0x04, " Instancing is not supported by GPU. ");
m_use_instancing = false;
m_useInstancing = false;
}
const bx::Vec3 at = { 0.0f, 0.0f, 0.0f };
@@ -222,20 +231,20 @@ public:
bgfx::setViewRect(0, 0, 0, uint16_t(m_width), uint16_t(m_height) );
}
m_last_frame_missing = 0;
m_lastFrameMissing = 0;
if (m_use_instancing)
if (m_useInstancing)
{
// 80 bytes stride = 64 bytes for 4x4 matrix + 16 bytes for RGBA color.
const uint16_t instanceStride = 80;
// to total number of instances to draw
uint32_t totalCubes = m_side_size * m_side_size;
uint32_t totalCubes = m_sideSize * m_sideSize;
// figure out how big of a buffer is available
uint32_t drawnCubes = bgfx::getAvailInstanceDataBuffer(totalCubes, instanceStride);
// save how many we couldn't draw due to buffer room so we can display it
m_last_frame_missing = totalCubes - drawnCubes;
m_lastFrameMissing = totalCubes - drawnCubes;
bgfx::InstanceDataBuffer idb;
bgfx::allocInstanceDataBuffer(&idb, drawnCubes, instanceStride);
@@ -244,8 +253,8 @@ public:
for (uint32_t ii = 0; ii < drawnCubes; ++ii)
{
uint32_t yy = ii / m_side_size;
uint32_t xx = ii % m_side_size;
uint32_t yy = ii / m_sideSize;
uint32_t xx = ii % m_sideSize;
float* mtx = (float*)data;
bx::mtxRotateXY(mtx, time + xx * 0.21f, time + yy * 0.37f);
@@ -278,9 +287,9 @@ public:
else
{
// non-instanced path
for (uint32_t yy = 0; yy < m_side_size; ++yy)
for (uint32_t yy = 0; yy < m_sideSize; ++yy)
{
for (uint32_t xx = 0; xx < m_side_size; ++xx)
for (uint32_t xx = 0; xx < m_sideSize; ++xx)
{
float mtx[16];
bx::mtxRotateXY(mtx, time + xx * 0.21f, time + yy * 0.37f);
@@ -320,9 +329,9 @@ public:
uint32_t m_height;
uint32_t m_debug;
uint32_t m_reset;
bool m_use_instancing;
uint32_t m_last_frame_missing;
uint32_t m_side_size;
bool m_useInstancing;
uint32_t m_lastFrameMissing;
uint32_t m_sideSize;
bgfx::VertexBufferHandle m_vbh;
bgfx::IndexBufferHandle m_ibh;

14
examples/common/imgui/imgui.h
View File

@@ -119,6 +119,20 @@ namespace ImGui
;
}
inline void PushEnabled(bool _enabled)
{
extern void PushItemFlag(int option, bool enabled);
PushItemFlag(1<<2 /*ImGuiItemFlags_Disabled*/, !_enabled);
PushStyleVar(ImGuiStyleVar_Alpha, ImGui::GetStyle().Alpha * (_enabled ? 1.0f : 0.5f) );
}
inline void PopEnabled()
{
extern void PopItemFlag();
PopItemFlag();
PopStyleVar();
}
} // namespace ImGui
#endif // IMGUI_H_HEADER_GUARD