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Adding getters and setters to the TPage attribute. #1929

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May 18, 2025
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Adding getters and setters to the TPage attribute. #1929

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59 changes: 59 additions & 0 deletions src/mips/psyqo/primitives/common.hh
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Original file line number Diff line number Diff line change
Expand Up @@ -142,6 +142,34 @@ struct TexInfo {
};
static_assert(sizeof(TexInfo) == sizeof(uint32_t), "TexInfo is not 32 bits");

struct TPageAttr;
/**
* @brief A primitive's tpage location.
*
* @details This represents the location of a texture page in the VRAM space, and is
* used in the `TPageAttr` struct. This can be used to easily set the page location
* in a primitive's attribute while keeping the other attributes intact.
*/
struct TPageLoc {
TPageLoc& setPageX(uint8_t x) {
info &= ~0x000f;
x &= 0x000f;
info |= x;
return *this;
}
TPageLoc& setPageY(uint8_t y) {
info &= ~0x0010;
y &= 0x0001;
info |= y << 4;
return *this;
}

private:
uint8_t info = 0;
friend struct TPageAttr;
};
static_assert(sizeof(TPageLoc) == sizeof(uint8_t), "TPageLoc is not 8 bits");

/**
* @brief A primitive's tpage attribute.
*
Expand All @@ -156,6 +184,21 @@ static_assert(sizeof(TexInfo) == sizeof(uint32_t), "TexInfo is not 32 bits");
* as the compiler will better optimize the former sequence of operations.
*/
struct TPageAttr {
TPageAttr() {}
TPageAttr(TPageAttr&& other) : info(other.info) {}
TPageAttr(const TPageAttr& other) : info(other.info) {}
TPageAttr& operator=(TPageAttr&& other) {
info = other.info;
return *this;
}
TPageAttr& operator=(const TPageAttr& other) {
info = other.info;
return *this;
}
Comment on lines +187 to +197
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Copilot AI May 18, 2025

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[nitpick] Since the default constructor and the copy/move operators perform only trivial member-wise operations, you could consider using the default implementations (i.e., '= default') to reduce boilerplate code.

Suggested change
TPageAttr() {}
TPageAttr(TPageAttr&& other) : info(other.info) {}
TPageAttr(const TPageAttr& other) : info(other.info) {}
TPageAttr& operator=(TPageAttr&& other) {
info = other.info;
return *this;
}
TPageAttr& operator=(const TPageAttr& other) {
info = other.info;
return *this;
}
TPageAttr() = default;
TPageAttr(TPageAttr&& other) = default;
TPageAttr(const TPageAttr& other) = default;
TPageAttr& operator=(TPageAttr&& other) = default;
TPageAttr& operator=(const TPageAttr& other) = default;

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TPageAttr& copy(const TPageAttr& other) {
info = other.info;
return *this;
}
Comment on lines +198 to +201
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Copilot AI May 18, 2025

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[nitpick] The copy() method in TPageAttr is redundant since the copy assignment operator already handles member-wise copying. Consider removing it to reduce duplication and simplify maintenance.

Suggested change
TPageAttr& copy(const TPageAttr& other) {
info = other.info;
return *this;
}
// Removed the redundant copy() method as the copy assignment operator already handles member-wise copying.

Copilot uses AI. Check for mistakes.

TPageAttr& setPageX(uint8_t x) {
info &= ~0x000f;
x &= 0x000f;
Expand All @@ -168,6 +211,11 @@ struct TPageAttr {
info |= y << 4;
return *this;
}
TPageAttr& setPageLoc(TPageLoc loc) {
info &= ~0x001f;
info |= loc.info;
return *this;
}
TPageAttr& set(Prim::TPageAttr::SemiTrans trans) {
info &= ~0x0060;
uint32_t t = static_cast<uint32_t>(trans);
Expand Down Expand Up @@ -196,6 +244,17 @@ struct TPageAttr {
info |= 0x0400;
return *this;
}
uint8_t getPageX() const { return info & 0x000f; }
uint8_t getPageY() const { return (info >> 4) & 0x0001; }
uint8_t getPageLoc() const { return info & 0x001f; }
Prim::TPageAttr::SemiTrans getSemiTrans() const {
return static_cast<Prim::TPageAttr::SemiTrans>((info >> 5) & 0x0003);
}
Prim::TPageAttr::ColorMode getColorMode() const {
return static_cast<Prim::TPageAttr::ColorMode>((info >> 7) & 0x0003);
}
bool hasDithering() const { return (info & 0x0200) != 0; }
bool isDisplayAreaEnabled() const { return (info & 0x0400) != 0; }

private:
uint16_t info = 0;
Expand Down
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