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Replaced embedded missing texture with procedural texture.

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This commit is contained in:
Branimir Karadžić 2014-08-13 19:48:58 -07:00
parent 3295126799
commit 20906bda03
2 changed files with 26 additions and 2515 deletions
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2512
examples/common/imgui/dds_imgui_x_texture.h
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29
examples/common/imgui/imgui.cpp
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@ -40,7 +40,6 @@
#include "vs_imgui_image.bin.h"
#include "fs_imgui_image.bin.h"
#include "fs_imgui_image_swizz.bin.h"
#include "dds_imgui_x_texture.h"
#define USE_NANOVG_FONT 0
@ -337,6 +336,31 @@ struct Imgui
}
}
bgfx::TextureHandle genMissingTexture(uint32_t _width, uint32_t _height, float _lineWidth = 0.02f)
{
const bgfx::Memory* mem = bgfx::alloc(_width*_height*4);
uint32_t* bgra8 = (uint32_t*)mem->data;
const float sx = 0.70710677f;
const float cx = 0.70710677f;
for (uint32_t yy = 0; yy < _height; ++yy)
{
for (uint32_t xx = 0; xx < _width; ++xx)
{
float px = xx / float(_width) * 2.0f - 1.0f;
float py = yy / float(_height) * 2.0f - 1.0f;
float sum = bx::fpulse(px * cx - py * sx, _lineWidth, -_lineWidth)
+ bx::fpulse(px * sx + py * cx, _lineWidth, -_lineWidth)
;
*bgra8++ = sum >= 1.0f ? 0xffff0000 : 0xffffffff;
}
}
return bgfx::createTexture2D(_width, _height, 0, bgfx::TextureFormat::BGRA8, 0, mem);
}
ImguiFontHandle create(const void* _data, float _fontSize)
{
m_nvg = nvgCreate(512, 512, 1, m_view);
@ -427,8 +451,7 @@ struct Imgui
bgfx::destroyShader(fsh);
bgfx::destroyShader(vsh);
const bgfx::Memory* texMem = bgfx::makeRef(s_xTexture, sizeof(s_xTexture));
m_missingTexture = bgfx::createTexture(texMem);
m_missingTexture = genMissingTexture(256, 256, 0.04f);
#if !USE_NANOVG_FONT
const ImguiFontHandle handle = createFont(_data, _fontSize);