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增加画圆角矩形函数

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This commit is contained in:
hyzboy
2019-05-23 19:23:49 +08:00
parent 5ec1dee6b5
commit 593b0b4a03
8 changed files with 178 additions and 82 deletions
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201
example/Vulkan/Geometry2D.cpp
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@@ -25,9 +25,6 @@ struct WorldConfig
struct RectangleCreateInfo
{
RectScope2f scope;
vec3<float> normal;
Color4f color;
RectScope2f tex_coord;
};
VK_NAMESPACE_BEGIN
@@ -109,7 +106,7 @@ vulkan::Renderable *CreateRectangle(vulkan::Device *device,vulkan::Material *mtl
{
const vulkan::VertexShaderModule *vsm=mtl->GetVertexShaderModule();
vulkan::Renderable *render_obj=mtl->CreateRenderable();
vulkan::Renderable *render_obj=mtl->CreateRenderable(VERTEX_COUNT);
const int vertex_binding=vsm->GetStageInputBinding("Vertex");
@@ -124,60 +121,105 @@ vulkan::Renderable *CreateRectangle(vulkan::Device *device,vulkan::Material *mtl
render_obj->Set(vertex_binding,device->CreateVBO(vertex));
delete vertex;
}
const int normal_binding=vsm->GetStageInputBinding("Normal");
if(normal_binding!=-1)
else
{
VB3f *normal=new VB3f(VERTEX_COUNT);
normal->Begin();
normal->Write(rci->normal,VERTEX_COUNT);
normal->End();
render_obj->Set(normal_binding,device->CreateVBO(normal));
delete normal;
}
const int color_binding=vsm->GetStageInputBinding("Color");
if(color_binding!=-1)
{
VB4f *color=new VB4f(VERTEX_COUNT);
color->Begin();
color->Write(rci->color,VERTEX_COUNT);
color->End();
render_obj->Set(color_binding,device->CreateVBO(color));
delete color;
}
const int tex_coord_binding=vsm->GetStageInputBinding("TexCoord");
if(tex_coord_binding!=-1)
{
VB2f *tex_coord=new VB2f(VERTEX_COUNT);
tex_coord->Begin();
tex_coord->WriteRectFan(rci->tex_coord);
tex_coord->End();
render_obj->Set(tex_coord_binding,device->CreateVBO(tex_coord));
delete tex_coord;
delete render_obj;
return nullptr;
}
return render_obj;
}
/**
* 创建一个圆角矩形
* @param r 半径
* @param rp 半径精度
*/
//Mesh *CreateRoundrectangle(float l,float t,float w,float h,float r,uint32_t rp)
//{
//}
struct RoundRectangleCreateInfo:public RectangleCreateInfo
{
float radius; //圆角半径
uint32_t round_per; //圆角精度
};
vulkan::Renderable *CreateRoundRectangle(vulkan::Device *device,vulkan::Material *mtl,const RoundRectangleCreateInfo *rci)
{
const vulkan::VertexShaderModule *vsm=mtl->GetVertexShaderModule();
vulkan::Renderable *render_obj=nullptr;
const int vertex_binding=vsm->GetStageInputBinding("Vertex");
if(vertex_binding==-1)
return(nullptr);
VB2f *vertex=nullptr;
if(rci->radius==0||rci->round_per<=1) //这是要画矩形
{
vertex=new VB2f(4);
vertex->Begin();
vertex->WriteRectFan(rci->scope);
vertex->End();
}
else
{
float radius=rci->radius;
if(radius>rci->scope.GetWidth()/2.0f)radius=rci->scope.GetWidth()/2.0f;
if(radius>rci->scope.GetHeight()/2.0f)radius=rci->scope.GetHeight()/2.0f;
vertex=new VB2f(1+rci->round_per*4);
vertex->Begin();
vec2<float> *coord=new vec2<float>[rci->round_per];
for(uint i=0;i<rci->round_per;i++)
{
float ang=float(i)/float(rci->round_per-1)*90.0f;
float x=sin(hgl_ang2rad(ang))*radius;
float y=cos(hgl_ang2rad(ang))*radius;
coord[i].x=x;
coord[i].y=y;
//生成的是右上角的
vertex->Write( rci->scope.GetRight()-radius+x,
rci->scope.GetTop()+radius-y);
}
//右下角
for(uint i=0;i<rci->round_per;i++)
{
vertex->Write(rci->scope.GetRight() -radius+coord[rci->round_per-1-i].x,
rci->scope.GetBottom()-radius+coord[rci->round_per-1-i].y);
}
//左下角
for(uint i=0;i<rci->round_per;i++)
{
vertex->Write(rci->scope.GetLeft() +radius-coord[i].x,
rci->scope.GetBottom()-radius+coord[i].y);
}
//左上角
for(uint i=0;i<rci->round_per;i++)
{
vertex->Write(rci->scope.GetLeft() +radius-coord[rci->round_per-1-i].x,
rci->scope.GetTop() +radius-coord[rci->round_per-1-i].y);
}
vertex->Write(rci->scope.GetRight() -radius+coord[0].x,
rci->scope.GetTop() +radius-coord[0].y);
delete[] coord;
vertex->End();
}
render_obj=mtl->CreateRenderable(vertex->GetCount());
render_obj->Set(vertex_binding,device->CreateVBO(vertex));
delete vertex;
return render_obj;
}
class TestApp:public VulkanApplicationFramework
{
@@ -186,8 +228,10 @@ private:
uint swap_chain_count=0;
vulkan::Material * material =nullptr;
vulkan::DescriptorSets * desciptor_sets =nullptr;
vulkan::DescriptorSets * descriptor_sets =nullptr;
vulkan::Renderable * render_obj =nullptr;
vulkan::RenderableInstance *render_instance =nullptr;
vulkan::Buffer * ubo_mvp =nullptr;
vulkan::Pipeline * pipeline =nullptr;
@@ -200,13 +244,14 @@ public:
~TestApp()
{
SAFE_CLEAR(render_instance);
SAFE_CLEAR(color_buffer);
SAFE_CLEAR(vertex_buffer);
SAFE_CLEAR_OBJECT_ARRAY(cmd_buf,swap_chain_count);
SAFE_CLEAR(pipeline);
SAFE_CLEAR(ubo_mvp);
SAFE_CLEAR(render_obj);
SAFE_CLEAR(desciptor_sets);
SAFE_CLEAR(descriptor_sets);
SAFE_CLEAR(material);
}
@@ -219,17 +264,25 @@ private:
if(!material)
return(false);
desciptor_sets=material->CreateDescriptorSets();
descriptor_sets=material->CreateDescriptorSets();
return(true);
}
bool CreateRenderObject()
{
struct RectangleCreateInfo rci;
//struct RectangleCreateInfo rci;
rci.scope.Set(10,10,10,10);
//rci.scope.Set(10,10,10,10);
render_obj=CreateRectangle(device,material,&rci);
//render_obj=CreateRectangle(device,material,&rci);
struct RoundRectangleCreateInfo rrci;
rrci.scope.Set(10,10,SCREEN_WIDTH-20,SCREEN_HEIGHT-20);
rrci.radius=8; //半径为8
rrci.round_per=8; //圆角切分成8段
render_obj=CreateRoundRectangle(device,material,&rrci);
return render_obj;
}
@@ -245,10 +298,10 @@ private:
if(!ubo_mvp)
return(false);
if(!desciptor_sets->BindUBO(material->GetUBO("world"),*ubo_mvp))
if(!descriptor_sets->BindUBO(material->GetUBO("world"),*ubo_mvp))
return(false);
desciptor_sets->Update();
descriptor_sets->Update();
return(true);
}
@@ -271,6 +324,27 @@ private:
return pipeline;
}
void Draw(vulkan::CommandBuffer *cb,vulkan::RenderableInstance *ri)
{
cb->Bind(ri->GetPipeline());
cb->Bind(ri->GetDescriptorSets());
vulkan::Renderable *obj=ri->GetRenderable();
cb->Bind(obj);
const vulkan::IndexBuffer *ib=obj->GetIndexBuffer();
if(ib)
{
cb->DrawIndexed(ib->GetCount());
}
else
{
cb->Draw(obj->GetDrawCount());
}
}
bool InitCommandBuffer()
{
cmd_buf=hgl_zero_new<vulkan::CommandBuffer *>(swap_chain_count);
@@ -284,10 +358,7 @@ private:
cmd_buf[i]->Begin();
cmd_buf[i]->BeginRenderPass(device->GetRenderPass(),device->GetFramebuffer(i));
cmd_buf[i]->Bind(pipeline);
cmd_buf[i]->Bind(desciptor_sets);
cmd_buf[i]->Bind(render_obj);
cmd_buf[i]->Draw(VERTEX_COUNT);
Draw(cmd_buf[i],render_instance);
cmd_buf[i]->EndRenderPass();
cmd_buf[i]->End();
}
@@ -316,6 +387,8 @@ public:
if(!InitPipeline())
return(false);
render_instance=new vulkan::RenderableInstance(pipeline,descriptor_sets,render_obj);
if(!InitCommandBuffer())
return(false);