control.hh

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/*
 
MIT License
 
Copyright (c) 2022 PCSX-Redux authors
 
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
 
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
 
*/
 
#pragma once
 
#include <stdint.h>
 
#include "psyqo/primitives/common.hh"
 
namespace psyqo {
 
namespace Prim {
 
struct TPage {
    TPage() : command(0xe100) {}
    PrimPieces::TPageAttr attr;
 
  private:
    uint16_t command;
};
static_assert(sizeof(TPage) == sizeof(uint32_t), "TPage is not 32 bits");
 
struct DrawingAreaStart {
    DrawingAreaStart(Vertex p) : command(0xe3000000 | p.x | (p.y << 10)) {}
 
  private:
    uint32_t command;
};
static_assert(sizeof(DrawingAreaStart) == sizeof(uint32_t), "DrawingAreaStart is not 32 bits");
 
struct DrawingAreaEnd {
    DrawingAreaEnd(Vertex p) : command(0xe4000000 | (p.x - 1) | ((p.y - 1) << 10)) {}
 
  private:
    uint32_t command;
};
static_assert(sizeof(DrawingAreaEnd) == sizeof(uint32_t), "DrawingAreaEnd is not 32 bits");
 
struct DrawingOffset {
    DrawingOffset(Vertex p) : command(0xe5000000 | p.x | (p.y << 11)) {}
 
  private:
    uint32_t command;
};
static_assert(sizeof(DrawingOffset) == sizeof(uint32_t), "DrawingOffset is not 32 bits");
 
struct MaskControl {
    enum Set {
        FromSource,
        ForceSet,
    };
    enum class Test {
        No,
        Yes,
    };
    MaskControl() : command(0xe6000000) {}
    MaskControl(Set set, Test test) : command(0xe6000000 | set | (static_cast<uint32_t>(test) << 1)) {}
    MaskControl(Test test, Set set) : MaskControl(set, test) {}
    MaskControl(Set set) : MaskControl(set, Test::No) {}
    MaskControl(Test test) : MaskControl(Set::FromSource, test) {}
    MaskControl &set(Set set) {
        command &= ~0x1;
        command |= set;
        return *this;
    }
    MaskControl &set(Test test) {
        command &= ~0x2;
        command |= static_cast<uint32_t>(test) << 1;
        return *this;
    }
    MaskControl &set(Set set, Test test) { return *this = MaskControl(set, test); }
    MaskControl &set(Test test, Set set) { return *this = MaskControl(set, test); }
 
  private:
    uint32_t command;
};
static_assert(sizeof(MaskControl) == sizeof(uint32_t), "MaskControl is not 32 bits");
 
struct Scissor {
    DrawingAreaStart start = DrawingAreaStart(Vertex{{.x = 0, .y = 0}});
    DrawingAreaEnd end = DrawingAreaEnd(Vertex{{.x = 1024, .y = 512}});
    DrawingOffset offset = DrawingOffset(Vertex{{.x = 0, .y = 0}});
};
 
struct VRAMUpload {
    VRAMUpload() : command(0xa0000000) {}
 
  private:
    uint32_t command;
 
  public:
    Rect region;
};
static_assert(sizeof(VRAMUpload) == (sizeof(uint32_t) * 3), "VRAMUpload is not 96 bits");
 
}  // namespace Prim
 
}  // namespace psyqo