Delete files to recommit with lowercase names.
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// Copyright 2021 Kieron Morris
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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{
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Driver->Video->VESA - VESA Display Driver.
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@author(Kieron Morris <kjm@kieronmorris.me>)
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}
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unit vesa;
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interface
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uses
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videotypes, tracer, multiboot, lmemorymanager;
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//Init the driver, and register with the video interface in a state ready for execution.
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procedure init(Register : FRegisterDriver);
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implementation
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uses
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VESA8, VESA16, VESA24, VESA32;
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procedure allocateVESAFrameBuffer(Address : uint32; Width : uint32; Height : uint32);
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var
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LowerAddress, UpperAddress : uint32;
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Block : uint32;
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begin
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tracer.push_trace('VESA.allocateFrameBuffer.enter');
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LowerAddress:= ((Address) SHR 22)-1;
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UpperAddress:= ((Address + (Width * Height)) SHR 22)+1;
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For Block:=LowerAddress to UpperAddress do begin
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kpalloc(Block SHL 22);
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end;
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tracer.push_trace('VESA.allocateFrameBuffer.exit');
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end;
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procedure initVESAFrameBuffer(VideoBuffer : PVideoBuffer; Location : uint64; Width : uint32; Height : uint32; BitsPerPixel : uint8);
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begin
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tracer.push_trace('VESA.initVESAFrameBuffer.enter');
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if not(VideoBuffer^.Initialized) then begin
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VideoBuffer^.Location:= Location;
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VideoBuffer^.BitsPerPixel:= BitsPerPixel;
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VideoBuffer^.Width:= Width;
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VideoBuffer^.Height:= Height;
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allocateVESAFrameBuffer(VideoBuffer^.Location, VideoBuffer^.Width, VideoBuffer^.Height);
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if VideoBuffer^.Location <> 0 then
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VideoBuffer^.Initialized:= True;
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end;
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tracer.push_trace('VESA.initVESAFrameBuffer.exit');
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end;
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function enable(VideoInterface : PVideoInterface) : boolean;
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begin
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tracer.push_trace('VESA.enable.enter');
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initVESAFrameBuffer(@VideoInterface^.FrontBuffer, multiboot.multibootinfo^.framebuffer_addr, multiboot.multibootinfo^.framebuffer_width, multiboot.multibootinfo^.framebuffer_height, multiboot.multibootinfo^.framebuffer_bpp);
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case (VideoInterface^.FrontBuffer.BitsPerPixel) of
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08:VESA8.init(@VideoInterface^.DrawRoutines);
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16:VESA16.init(@VideoInterface^.DrawRoutines);
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24:VESA24.init(@VideoInterface^.DrawRoutines);
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32:VESA32.init(@VideoInterface^.DrawRoutines);
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end;
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enable:= VideoInterface^.FrontBuffer.Initialized;
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tracer.push_trace('VESA.enable.exit');
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end;
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procedure init(Register : FRegisterDriver);
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begin
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tracer.push_trace('VESA.init.enter');
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if Register <> nil then
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Register('VESA', @enable);
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tracer.push_trace('VESA.init.exit');
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end;
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end.
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// Copyright 2021 Kieron Morris
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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{
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Driver->Video->VESA16 - Implementation of VESA 16bpp draw routines for the VESA Driver.
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@author(Kieron Morris <kjm@kieronmorris.me>)
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}
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unit vesa16;
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interface
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uses
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videotypes, vesa, tracer, color;
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//Init the draw routines by providing what we support through the DrawRoutines struct.
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procedure init(DrawRoutines : PDrawRoutines);
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implementation
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procedure DrawPixel(Buffer : PVideoBuffer; X : uint32; Y : uint32; Pixel : TRGB32);
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begin
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end;
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procedure init(DrawRoutines : PDrawRoutines);
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begin
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tracer.push_trace('vesa16.init.enter');
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tracer.push_trace('vesa16.init.exit');
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end;
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end.
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@ -1,43 +0,0 @@
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// Copyright 2021 Kieron Morris
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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{
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Driver->Video->VESA24 - Implementation of VESA 24bpp draw routines for the VESA Driver.
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@author(Kieron Morris <kjm@kieronmorris.me>)
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}
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unit vesa24;
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interface
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uses
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videotypes, vesa, tracer, color;
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//Init the draw routines by providing what we support through the DrawRoutines struct.
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procedure init(DrawRoutines : PDrawRoutines);
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implementation
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procedure DrawPixel(Buffer : PVideoBuffer; X : uint32; Y : uint32; Pixel : TRGB32);
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begin
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end;
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procedure init(DrawRoutines : PDrawRoutines);
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begin
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tracer.push_trace('vesa24.init.enter');
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tracer.push_trace('vesa24.init.exit');
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end;
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end.
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// Copyright 2021 Kieron Morris
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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{
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Driver->Video->VESA32 - Implementation of VESA 32bpp draw routines for the VESA Driver.
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@author(Kieron Morris <kjm@kieronmorris.me>)
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}
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unit vesa32;
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interface
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uses
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videotypes, vesa, tracer, color;
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//Init the draw routines by providing what we support through the DrawRoutines struct.
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procedure init(DrawRoutines : PDrawRoutines);
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implementation
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procedure DrawPixel(Buffer : PVideoBuffer; X : uint32; Y : uint32; Pixel : TRGB32);
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var
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Location : PuInt32;
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LocationIndex : Uint32;
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begin
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tracer.push_trace('vesa32.DrawPixel.enter');
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Location:= Puint32(Buffer^.Location);
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LocationIndex:= (Y * Buffer^.Width) + X;
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Location[LocationIndex]:= uint32(Pixel);
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tracer.push_trace('vesa32.DrawPixel.exit');
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end;
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procedure init(DrawRoutines : PDrawRoutines);
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begin
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tracer.push_trace('vesa32.init.enter');
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DrawRoutines^.DrawPixel:= @DrawPixel;
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tracer.push_trace('vesa32.init.exit');
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end;
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end.
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@ -1,43 +0,0 @@
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// Copyright 2021 Kieron Morris
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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{
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Driver->Video->VESA8 - Implementation of VESA 8bpp draw routines for the VESA Driver.
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@author(Kieron Morris <kjm@kieronmorris.me>)
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}
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unit vesa8;
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interface
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uses
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videotypes, vesa, tracer, color;
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//Init the draw routines by providing what we support through the DrawRoutines struct.
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procedure init(DrawRoutines : PDrawRoutines);
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implementation
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procedure DrawPixel(Buffer : PVideoBuffer; X : uint32; Y : uint32; Pixel : TRGB32);
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begin
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end;
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procedure init(DrawRoutines : PDrawRoutines);
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begin
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tracer.push_trace('vesa8.init.enter');
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tracer.push_trace('vesa8.init.exit');
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end;
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end.
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@ -1,94 +0,0 @@
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// Copyright 2021 Kieron Morris
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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{
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Driver->Video->Doublebuffer - Implements a very basic double buffer, tested with VESA drivers.
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@author(Kieron Morris <kjm@kieronmorris.me>)
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}
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unit doublebuffer;
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interface
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uses
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lmemorymanager, tracer, videotypes;
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//Init the driver, and register with the video interface in a state ready for execution.
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procedure init(Register : FRegisterDriver);
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implementation
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function allocateBackBuffer(Width : uint32; Height : uint32; BitsPerPixel : uint8) : uint64;
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begin
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tracer.push_trace('doublebuffer.allocateBackBuffer.enter');
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//This doesn't currently work... Needs a rework of lmemorymanager
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allocateBackBuffer:= uint64(klalloc((Width * Height) * BitsPerPixel));
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tracer.push_trace('doublebuffer.allocateBackBuffer.exit');
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end;
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procedure initBackBuffer(VInterface : PVideoInterface; Width : uint32; Height : uint32; BitsPerPixel : uint8);
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begin
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tracer.push_trace('doublebuffer.initBackBuffer.enter');
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if not(VInterface^.BackBuffer.Initialized) then begin
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VInterface^.BackBuffer.Location:= allocateBackBuffer(Width, Height, BitsPerPixel);
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if (VInterface^.BackBuffer.Location <> 0) then begin
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VInterface^.BackBuffer.Width:= Width;
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VInterface^.BackBuffer.Height:= Height;
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VInterface^.BackBuffer.BitsPerPixel:= BitsPerPixel;
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VInterface^.BackBuffer.Initialized:= True;
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end;
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end;
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tracer.push_trace('doublebuffer.initBackBuffer.exit');
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end;
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procedure Flush(FrontBuffer : PVideoBuffer; BackBuffer : PVideoBuffer);
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var
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X,Y : uint32;
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Back,Front : PuInt64;
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begin
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tracer.push_trace('doublebuffer.Flush.enter');
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if not(BackBuffer^.Initialized) then exit;
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if ((FrontBuffer^.Width > BackBuffer^.Width) or (FrontBuffer^.Height > BackBuffer^.Height)) then exit;
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Back:= PUint64(BackBuffer^.Location);
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Front:= PuInt64(FrontBuffer^.Location);
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for X:=0 to (BackBuffer^.Width-1) div 2 do begin
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for Y:=0 to (BackBuffer^.Height-1) div 2 do begin
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Front[(Y * BackBuffer^.Width) + X]:= Back[(Y * BackBuffer^.Width) + X];
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end;
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end;
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tracer.push_trace('doublebuffer.Flush.exit');
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end;
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function enable(VideoInterface : PVideoInterface) : boolean;
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begin
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tracer.push_trace('doublebuffer.enable.enter');
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enable:= false;
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initBackBuffer(VideoInterface, VideoInterface^.FrontBuffer.Width, VideoInterface^.FrontBuffer.Height, VideoInterface^.FrontBuffer.BitsPerPixel);
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if VideoInterface^.BackBuffer.Initialized then begin
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VideoInterface^.DefaultBuffer:= @VideoInterface^.BackBuffer;
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VideoInterface^.DrawRoutines.Flush:= @Flush;
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enable:= true;
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end;
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tracer.push_trace('doublebuffer.enable.exit');
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end;
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procedure init(Register : FRegisterDriver);
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begin
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tracer.push_trace('doublebuffer.init.enter');
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Register('BASIC_DOUBLE_BUFFER', @enable);
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tracer.push_trace('doublebuffer.init.exit');
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end;
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end.
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@ -1,146 +0,0 @@
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// Copyright 2021 Kieron Morris
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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{
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Driver->Video->Video - Provides an abstract rasterization/drawing interface.
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@author(Kieron Morris <kjm@kieronmorris.me>)
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}
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unit video;
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interface
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uses
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lmemorymanager, tracer, color, videotypes, hashmap;
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procedure init();
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|
||||||
procedure DrawPixel(X : uint32; Y : uint32; Pixel : TRGB32);
|
|
||||||
procedure Flush();
|
|
||||||
function register(DriverIdentifier : pchar; EnableCallback : FEnableDriver) : boolean;
|
|
||||||
function enable(DriverIdentifier : pchar) : boolean;
|
|
||||||
function frontBufferWidth : uint32;
|
|
||||||
function frontBufferHeight : uint32;
|
|
||||||
function frontBufferBpp : uint8;
|
|
||||||
function backBufferWidth : uint32;
|
|
||||||
function backBufferHeight : uint32;
|
|
||||||
function backBufferBpp : uint8;
|
|
||||||
|
|
||||||
implementation
|
|
||||||
|
|
||||||
Procedure dummyFDrawPixel(Buffer : PVideoBuffer; X : uint32; Y : uint32; Pixel : TRGB32);
|
|
||||||
begin
|
|
||||||
tracer.push_trace('video.dummyFDrawPixel.enter');
|
|
||||||
//Do nothing
|
|
||||||
end;
|
|
||||||
|
|
||||||
Procedure dummyFFlush(FrontBuffer : PVideoBuffer; BackBuffer : PVideoBuffer);
|
|
||||||
begin
|
|
||||||
tracer.push_trace('video.dummyFFlush.enter');
|
|
||||||
//Do nothing
|
|
||||||
end;
|
|
||||||
|
|
||||||
var
|
|
||||||
VideoInterface : TVideoInterface;
|
|
||||||
DriverMap : PHashMap;
|
|
||||||
|
|
||||||
procedure init();
|
|
||||||
var
|
|
||||||
RGB : TRGB32;
|
|
||||||
x,y : uint32;
|
|
||||||
|
|
||||||
begin
|
|
||||||
tracer.push_trace('video.init.enter');
|
|
||||||
VideoInterface.FrontBuffer.Initialized:= false;
|
|
||||||
VideoInterface.BackBuffer.Initialized:= false;
|
|
||||||
VideoInterface.DefaultBuffer:= @VideoInterface.FrontBuffer;
|
|
||||||
VideoInterface.DrawRoutines.DrawPixel:= @dummyFDrawPixel;
|
|
||||||
VideoInterface.DrawRoutines.Flush:= @dummyFFlush;
|
|
||||||
DriverMap:= hashmap.new;
|
|
||||||
tracer.push_trace('video.init.exit');
|
|
||||||
end;
|
|
||||||
|
|
||||||
function register(DriverIdentifier : pchar; EnableCallback : FEnableDriver) : boolean;
|
|
||||||
var
|
|
||||||
Value : Void;
|
|
||||||
|
|
||||||
begin
|
|
||||||
tracer.push_trace('video.register.enter');
|
|
||||||
register:= false;
|
|
||||||
Value:= Hashmap.get(DriverMap, DriverIdentifier);
|
|
||||||
if (Value = nil) then begin
|
|
||||||
Hashmap.add(DriverMap, DriverIdentifier, void(EnableCallback));
|
|
||||||
register:= true;
|
|
||||||
end;
|
|
||||||
tracer.push_trace('video.register.exit');
|
|
||||||
end;
|
|
||||||
|
|
||||||
function enable(DriverIdentifier : pchar) : boolean;
|
|
||||||
var
|
|
||||||
Value : Void;
|
|
||||||
|
|
||||||
begin
|
|
||||||
tracer.push_trace('video.enable.enter');
|
|
||||||
enable:= false;
|
|
||||||
Value:= Hashmap.get(DriverMap, DriverIdentifier);
|
|
||||||
if (Value <> nil) then begin
|
|
||||||
enable:= FEnableDriver(Value)(@VideoInterface);
|
|
||||||
end;
|
|
||||||
tracer.push_trace('video.enable.exit');
|
|
||||||
end;
|
|
||||||
|
|
||||||
procedure DrawPixel(X : uint32; Y : uint32; Pixel : TRGB32);
|
|
||||||
begin
|
|
||||||
tracer.push_trace('video.DrawPixel.enter');
|
|
||||||
VideoInterface.DrawRoutines.DrawPixel(VideoInterface.DefaultBuffer, X, Y, Pixel);
|
|
||||||
tracer.push_trace('video.DrawPixel.exit');
|
|
||||||
end;
|
|
||||||
|
|
||||||
procedure Flush();
|
|
||||||
begin
|
|
||||||
tracer.push_trace('video.Flush.enter');
|
|
||||||
VideoInterface.DrawRoutines.Flush(@VideoInterface.FrontBuffer, @VideoInterface.BackBuffer);
|
|
||||||
tracer.push_trace('video.Flush.exit');
|
|
||||||
end;
|
|
||||||
|
|
||||||
function frontBufferWidth : uint32;
|
|
||||||
begin
|
|
||||||
frontBufferWidth:= VideoInterface.FrontBuffer.Width;
|
|
||||||
end;
|
|
||||||
|
|
||||||
function frontBufferHeight : uint32;
|
|
||||||
begin
|
|
||||||
frontBufferHeight:= VideoInterface.FrontBuffer.Height;
|
|
||||||
end;
|
|
||||||
|
|
||||||
function frontBufferBpp : uint8;
|
|
||||||
begin
|
|
||||||
frontBufferBpp:= VideoInterface.FrontBuffer.BitsPerPixel;
|
|
||||||
end;
|
|
||||||
|
|
||||||
function backBufferWidth : uint32;
|
|
||||||
begin
|
|
||||||
backBufferWidth:= VideoInterface.BackBuffer.Width;
|
|
||||||
end;
|
|
||||||
|
|
||||||
function backBufferHeight : uint32;
|
|
||||||
begin
|
|
||||||
backBufferHeight:= VideoInterface.BackBuffer.Height;
|
|
||||||
end;
|
|
||||||
|
|
||||||
function backBufferBpp : uint8;
|
|
||||||
begin
|
|
||||||
backBufferBpp:= VideoInterface.BackBuffer.BitsPerPixel;
|
|
||||||
end;
|
|
||||||
|
|
||||||
end.
|
|
||||||
@ -1,83 +0,0 @@
|
|||||||
// Copyright 2021 Kieron Morris
|
|
||||||
//
|
|
||||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
||||||
// you may not use this file except in compliance with the License.
|
|
||||||
// You may obtain a copy of the License at
|
|
||||||
//
|
|
||||||
// http://www.apache.org/licenses/LICENSE-2.0
|
|
||||||
//
|
|
||||||
// Unless required by applicable law or agreed to in writing, software
|
|
||||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
||||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
||||||
// See the License for the specific language governing permissions and
|
|
||||||
// limitations under the License.
|
|
||||||
|
|
||||||
{
|
|
||||||
Driver->Video->Videotypes - Provides types relating to the video framework & driver interface.
|
|
||||||
|
|
||||||
@author(Kieron Morris <kjm@kieronmorris.me>)
|
|
||||||
}
|
|
||||||
unit videotypes;
|
|
||||||
|
|
||||||
interface
|
|
||||||
|
|
||||||
uses
|
|
||||||
color;
|
|
||||||
|
|
||||||
type
|
|
||||||
//Arbitrary pointer to a video buffer in memory
|
|
||||||
VideoBuffer = uint32;
|
|
||||||
|
|
||||||
//Struct representing a Memory Mapped Video Buffer
|
|
||||||
TVideoBuffer = record
|
|
||||||
//Has this buffer been initialized? Has it been paged/created in memory?
|
|
||||||
Initialized : Boolean;
|
|
||||||
//Location of the video buffer in memory as a QWORD.
|
|
||||||
Location : VideoBuffer;
|
|
||||||
//How many bits per pixel?
|
|
||||||
BitsPerPixel : uint8;
|
|
||||||
//Width of the buffer.
|
|
||||||
Width : uint32;
|
|
||||||
//Height of the buffer.
|
|
||||||
Height : uint32;
|
|
||||||
end;
|
|
||||||
//Pointer to a video buffer
|
|
||||||
PVideoBuffer = ^TVideoBuffer;
|
|
||||||
|
|
||||||
//(Abstract) Draw a pixel to screenspace
|
|
||||||
FDrawPixel = procedure(Buffer : PVideoBuffer; X : uint32; Y : uint32; Pixel : TRGB32);
|
|
||||||
//(Abstract) Flush backbuffer to MMIO Buffer
|
|
||||||
FFlush = procedure(FrontBuffer : PVideoBuffer; BackBuffer : PVideoBuffer);
|
|
||||||
|
|
||||||
//Routines for drawing to the screen
|
|
||||||
TDrawRoutines = record
|
|
||||||
DrawPixel : FDrawPixel;
|
|
||||||
Flush : FFlush;
|
|
||||||
end;
|
|
||||||
//Pointer to drawing routines
|
|
||||||
PDrawRoutines = ^TDrawRoutines;
|
|
||||||
|
|
||||||
//Struct representing the whole video driver.
|
|
||||||
TVideoInterface = record
|
|
||||||
//Default buffer to be used when rendering, front buffer for no double buffering, back buffer otherwise.
|
|
||||||
DefaultBuffer : PVideoBuffer;
|
|
||||||
//Memory Mapped IO Buffer for raw rasterization.
|
|
||||||
FrontBuffer : TVideoBuffer;
|
|
||||||
//Back buffer used for double buffering, this is flushed to FrontBuffer with flush();
|
|
||||||
BackBuffer : TVideoBuffer;
|
|
||||||
//Drawing Routines
|
|
||||||
DrawRoutines : TDrawRoutines;
|
|
||||||
end;
|
|
||||||
//Pointer to a video interface struct.
|
|
||||||
PVideoInterface = ^TVideoInterface;
|
|
||||||
|
|
||||||
//(Abstract) Enable method for a driver, called from video to enable driver.
|
|
||||||
FEnableDriver = function(VideoInterface : PVideoInterface) : boolean;
|
|
||||||
//(Abstract) Register driver, called from a driver to register with the video interface.
|
|
||||||
FRegisterDriver = function(DriverIdentifier : pchar; EnableCallback : FEnableDriver) : boolean;
|
|
||||||
//(Abstract) Init driver, called from _somewhere_ to start the driver and register it with the video interface.
|
|
||||||
FInitDriver = procedure(Register : FRegisterDriver);
|
|
||||||
|
|
||||||
implementation
|
|
||||||
|
|
||||||
end.
|
|
||||||
Loading…
x
Reference in New Issue
Block a user