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constexpr the TMS palette.

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This commit is contained in:
Thomas Harte 2023-01-01 22:34:07 -05:00
parent 27812fd0e2
commit 459ef39b08
1 changed files with 8 additions and 10 deletions

18
Components/9918/Implementation/9918Base.hpp

@ -123,21 +123,21 @@ struct LineBufferPointer {
};
template <Personality personality> struct Base {
Base();
static constexpr int output_lag = 11; // i.e. pixel output will occur 11 cycles
// after corresponding data read.
static constexpr uint32_t palette_pack(uint8_t r, uint8_t g, uint8_t b) {
uint32_t result = 0;
uint8_t *const result_ptr = reinterpret_cast<uint8_t *>(&result);
result_ptr[0] = r;
result_ptr[1] = g;
result_ptr[2] = b;
result_ptr[3] = 0;
return result;
#if TARGET_RT_BIG_ENDIAN
return uint32_t((r << 24) | (g << 16) | (b << 8));
#else
return uint32_t((b << 16) | (g << 8) | r);
#endif
}
// The default TMS palette.
const uint32_t palette[16] = {
static constexpr std::array<uint32_t, 16> palette {
palette_pack(0, 0, 0),
palette_pack(0, 0, 0),
palette_pack(33, 200, 66),
@ -159,8 +159,6 @@ template <Personality personality> struct Base {
palette_pack(255, 255, 255)
};
Base();
Outputs::CRT::CRT crt_;
TVStandard tv_standard_ = TVStandard::NTSC;