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90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
#include <ultra64.h>
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#include "config.h"
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#include "mtx.h"
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int myScale = 1;
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int myDegrees = 0;
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uObjMtx final_mtx, rot_mtx;
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int s2d_red = 255, s2d_green = 255, s2d_blue = 255, s2d_alpha = 255;
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static Gfx s2d_init_dl[] = {
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gsDPPipeSync(),
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gsDPSetTexturePersp(G_TP_NONE),
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gsDPSetTextureLOD(G_TL_TILE),
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gsDPSetTextureLUT(G_TT_NONE),
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gsDPSetTextureConvert(G_TC_FILT),
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gsDPSetAlphaCompare(G_AC_THRESHOLD),
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gsDPSetBlendColor(0, 0, 0, 0x01),
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// IA8
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gsDPSetCombineLERP(0, 0, 0, ENVIRONMENT,
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0, 0, 0, TEXEL0,
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0, 0, 0, ENVIRONMENT,
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0, 0, 0, TEXEL0),
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gsSPEndDisplayList(),
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};
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void setup_font(int idx) {
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gDPPipeSync(gdl_head++);
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gDPSetTextureFilter(gdl_head++, G_TF_POINT);
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gSPDisplayList(gdl_head++, s2d_init_dl);
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gDPSetEnvColor(gdl_head++, s2d_red, s2d_green, s2d_blue, s2d_alpha);
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gDPSetCycleType(gdl_head++, G_CYC_1CYCLE);
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gDPSetRenderMode(gdl_head++, G_RM_XLU_SPRITE, G_RM_XLU_SPRITE2);
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gSPObjRenderMode(gdl_head++, G_OBJRM_XLU | G_OBJRM_BILERP);
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gSPObjLoadTxtr(gdl_head++, &s2d_tex[idx]);
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}
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// Original Mtx Pipeline
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// Distorts when rotating, but is faster
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void mtx_pipeline(uObjMtx *m, int x, int y) {
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// init
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mat2_ident(m, 1);
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mat2_ident(&rot_mtx, 1);
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// create rot matrix
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mat2_rotate(&rot_mtx, (myDegrees) * (M_PI / 180.0f));
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// scale m
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mat2_scale(m, myScale);
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mat2_dst_mul(m,m, &rot_mtx);
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mat2_translate(m, x, y);
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gSPObjMatrix(gdl_head++, m);
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}
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// New matrix pipeline
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// Works with both rotation and scale,
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// but is slow due to more float operations being performed
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void mtx_pipeline2(uObjMtx *m, int x, int y) {
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// init
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Mat4 tmp, rot, scal, translate;
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guMtxIdentF(tmp);
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guScaleF(scal, myScale, myScale, 0);
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guRotateF(rot, (f32) myDegrees, 0, 0, 1.0f);
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guTranslateF(translate, x, y, 0);
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mtxf_mul(tmp, tmp, scal);
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mtxf_mul(tmp, tmp, rot);
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mtxf_mul(tmp, tmp, translate);
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gu_to_gs2dex(m, tmp);
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if (myDegrees != 0) {
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mat2_translate_vec(m, -(myDegrees) * M_DTOR, myScale);
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}
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gSPObjMatrix(gdl_head++, m);
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}
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void draw_s2d_glyph(char c, int x, int y, uObjMtx *mt) {
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setup_font(c);
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// mtx_pipeline(mt, x, y);
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mtx_pipeline2(mt, x, y);
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gSPObjSprite(gdl_head++, &s2d_font);
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}
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