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Overloaded nvgluCreateFramebuffer functions

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Added overloaded nvgluCreateFramebuffer functions for creating a framebuffer that automatically mirrors the size of the back buffer
This commit is contained in:
Oliver Collyer 2020-01-04 18:22:08 +00:00 committed by Бранимир Караџић
parent 6a5d1b1c7a
commit aeb77dde38
2 changed files with 61 additions and 0 deletions
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55
examples/common/nanovg/nanovg_bgfx.cpp
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@ -1229,6 +1229,61 @@ NVGLUframebuffer* nvgluCreateFramebuffer(NVGcontext* _ctx, int32_t _width, int32
return framebuffer;
}
NVGLUframebuffer* nvgluCreateFramebuffer(NVGcontext* ctx, int32_t imageFlags, bgfx::ViewId viewId)
{
NVGLUframebuffer* framebuffer = nvgluCreateFramebuffer(ctx, imageFlags);
if (framebuffer != NULL)
{
nvgluSetViewFramebuffer(viewId, framebuffer);
}
return framebuffer;
}
NVGLUframebuffer* nvgluCreateFramebuffer(NVGcontext* _ctx, int32_t _imageFlags)
{
BX_UNUSED(_imageFlags);
bgfx::TextureHandle textures[] =
{
bgfx::createTexture2D(bgfx::BackbufferRatio::Equal, false, 1, bgfx::TextureFormat::RGBA8, BGFX_TEXTURE_RT),
bgfx::createTexture2D(bgfx::BackbufferRatio::Equal, false, 1, bgfx::TextureFormat::D24S8, BGFX_TEXTURE_RT | BGFX_TEXTURE_RT_WRITE_ONLY)
};
bgfx::FrameBufferHandle fbh = bgfx::createFrameBuffer(
BX_COUNTOF(textures)
, textures
, true
);
if (!bgfx::isValid(fbh) )
{
return NULL;
}
struct NVGparams* params = nvgInternalParams(_ctx);
struct GLNVGcontext* gl = (struct GLNVGcontext*)params->userPtr;
struct GLNVGtexture* tex = glnvg__allocTexture(gl);
if (NULL == tex)
{
bgfx::destroy(fbh);
return NULL;
}
tex->width = 0;
tex->height = 0;
tex->type = NVG_TEXTURE_RGBA;
tex->flags = _imageFlags | NVG_IMAGE_PREMULTIPLIED;
tex->id = bgfx::getTexture(fbh);
NVGLUframebuffer* framebuffer = BX_NEW(gl->allocator, NVGLUframebuffer);
framebuffer->ctx = _ctx;
framebuffer->image = tex->id.idx;
framebuffer->handle = fbh;
return framebuffer;
}
void nvgluBindFramebuffer(NVGLUframebuffer* _framebuffer)
{
static NVGcontext* s_prevCtx = NULL;

6
examples/common/nanovg/nanovg_bgfx.h
View File

@ -61,6 +61,12 @@ NVGLUframebuffer* nvgluCreateFramebuffer(NVGcontext* _ctx, int32_t _width, int32
///
NVGLUframebuffer* nvgluCreateFramebuffer(NVGcontext* _ctx, int32_t _width, int32_t _height, int32_t _imageFlags);
///
NVGLUframebuffer* nvgluCreateFramebuffer(NVGcontext* _ctx, int32_t _imageFlags, bgfx::ViewId _viewId);
///
NVGLUframebuffer* nvgluCreateFramebuffer(NVGcontext* _ctx, int32_t _imageFlags);
///
void nvgluBindFramebuffer(NVGLUframebuffer* _framebuffer);