mirror of
https://github.com/TwilitRealm/dusklight
synced 2026-05-25 07:02:47 -04:00
TakaRikka
8b4808da8a
* TRK full match * remove trk asm * ar done * cleanup some dolphin headers * more dolphin cleanup * cleanup / GD fully matched * almost all of GX fully matched * GX / Mtx full matched * most of OS done * pad done * most of VI * remove asm * forgot couple vec funcs * couple JUtility matches
98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
#include "dolphin/mtx.h"
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#include "math.h"
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void C_MTXFrustum(Mtx44 m, f32 arg1, f32 arg2, f32 arg3, f32 arg4, f32 arg5, f32 arg6) {
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f32 tmp = 1.0f / (arg4 - arg3);
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m[0][0] = (2 * arg5) * tmp;
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m[0][1] = 0.0f;
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m[0][2] = (arg4 + arg3) * tmp;
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m[0][3] = 0.0f;
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tmp = 1.0f / (arg1 - arg2);
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m[1][0] = 0.0f;
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m[1][1] = (2 * arg5) * tmp;
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m[1][2] = (arg1 + arg2) * tmp;
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m[1][3] = 0.0f;
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m[2][0] = 0.0f;
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m[2][1] = 0.0f;
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tmp = 1.0f / (arg6 - arg5);
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m[2][2] = -(arg5)*tmp;
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m[2][3] = -(arg6 * arg5) * tmp;
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m[3][0] = 0.0f;
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m[3][1] = 0.0f;
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m[3][2] = -1.0f;
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m[3][3] = 0.0f;
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}
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/* 80346F28-80346FF8 341868 00D0+00 0/0 6/6 0/0 .text C_MTXPerspective */
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// Functions match but has issues with float constants
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void C_MTXPerspective(Mtx44 m, f32 fovY, f32 aspect, f32 n, f32 f) {
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f32 angle = fovY * 0.5f;
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f32 cot;
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f32 tmp;
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angle = MTXDegToRad(angle);
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cot = 1.0f / tanf(angle);
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m[0][0] = cot / aspect;
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m[0][1] = 0.0f;
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m[0][2] = 0.0f;
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m[0][3] = 0.0f;
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m[1][0] = 0.0f;
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m[1][1] = cot;
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m[1][2] = 0.0f;
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m[1][3] = 0.0f;
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m[2][0] = 0.0f;
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m[2][1] = 0.0f;
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tmp = 1.0f / (f - n);
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m[2][2] = -(n)*tmp;
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m[2][3] = -(f * n) * tmp;
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m[3][0] = 0.0f;
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m[3][1] = 0.0f;
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m[3][2] = -1.0f;
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m[3][3] = 0.0f;
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}
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/* 80346FF8-80347090 341938 0098+00 0/0 11/11 2/2 .text C_MTXOrtho */
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void C_MTXOrtho(Mtx44 m, f32 t, f32 b, f32 l, f32 r, f32 n, f32 f) {
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f32 tmp = 1.0f / (r - l);
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m[0][0] = 2.0f * tmp;
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m[0][1] = 0.0f;
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m[0][2] = 0.0f;
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m[0][3] = -(r + l) * tmp;
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tmp = 1.0f / (t - b);
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m[1][0] = 0.0f;
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m[1][1] = 2.0f * tmp;
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m[1][2] = 0.0f;
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m[1][3] = -(t + b) * tmp;
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m[2][0] = 0.0f;
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m[2][1] = 0.0f;
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tmp = 1.0f / (f - n);
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m[2][2] = -(1.0f) * tmp;
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m[2][3] = -(f)*tmp;
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m[3][0] = 0.0f;
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m[3][1] = 0.0f;
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m[3][2] = 0.0f;
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m[3][3] = 1.0f;
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}
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asm void PSMTX44Copy(register Mtx44 src, register Mtx44 dest) {
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#ifdef __MWERKS__ // clang-format off
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nofralloc;
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psq_l fp1, 0(src), 0, 0;
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psq_st fp1, 0(dest), 0, 0;
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psq_l fp1, 8(src), 0, 0;
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psq_st fp1, 8(dest), 0, 0;
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psq_l fp1, 0x10(src), 0, 0;
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psq_st fp1, 0x10(dest), 0, 0;
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psq_l fp1, 0x18(src), 0, 0;
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psq_st fp1, 0x18(dest), 0, 0;
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psq_l fp1, 0x20(src), 0, 0;
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psq_st fp1, 0x20(dest), 0, 0;
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psq_l fp1, 0x28(src), 0, 0;
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psq_st fp1, 0x28(dest), 0, 0;
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psq_l fp1, 0x30(src), 0, 0;
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psq_st fp1, 0x30(dest), 0, 0;
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psq_l fp1, 0x38(src), 0, 0;
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psq_st fp1, 0x38(dest), 0, 0;
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blr;
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#endif // clang-format on
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}
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