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Saturn: Save a few cycles in Transform function

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This commit is contained in:
UnknownShadow200 2025-04-03 19:34:27 +11:00
parent cb3383f310
commit d8f5f00aac
4 changed files with 24 additions and 24 deletions
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2
misc/wiiu/ps_textured_exp.psh
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@ -23,7 +23,7 @@
; $UNIFORM_VARS[0].block = -1
; $UNIFORM_VARS[0].offset = 0
; C1
; $UNIFORM_VARS[1].name = "fogEnd"
; $UNIFORM_VARS[1].name = "fogValue"
; $UNIFORM_VARS[1].type = "vec2"
; $UNIFORM_VARS[1].count = 1
; $UNIFORM_VARS[1].block = -1

2
misc/wiiu/ps_textured_lin.psh
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@ -23,7 +23,7 @@
; $UNIFORM_VARS[0].block = -1
; $UNIFORM_VARS[0].offset = 0
; C1
; $UNIFORM_VARS[1].name = "fogEnd"
; $UNIFORM_VARS[1].name = "fogValue"
; $UNIFORM_VARS[1].type = "vec2"
; $UNIFORM_VARS[1].count = 1
; $UNIFORM_VARS[1].block = -1

43
src/Graphics_Saturn.c
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@ -375,30 +375,31 @@ void Gfx_DeleteDynamicVb(GfxResourceID* vb) { Gfx_DeleteVb(vb); }
*#########################################################################################################################*/
static struct Matrix _view, _proj;
struct MatrixRow { int x, y, z, w; };
static struct MatrixRow mvp_row1, mvp_row2, mvp_row3, mvp_trans;
struct MatrixMVP { struct MatrixRow row1, row2, row3, trans; };
static struct MatrixMVP mvp_;
#define ToFixed(v) (int)(v * (1 << 12))
static void LoadTransformMatrix(struct Matrix* src) {
mvp_trans.x = XYZFixed(1) * ToFixed(src->row4.x);
mvp_trans.y = XYZFixed(1) * ToFixed(src->row4.y);
mvp_trans.z = XYZFixed(1) * ToFixed(src->row4.z);
mvp_trans.w = XYZFixed(1) * ToFixed(src->row4.w);
mvp_.trans.x = XYZFixed(1) * ToFixed(src->row4.x);
mvp_.trans.y = XYZFixed(1) * ToFixed(src->row4.y);
mvp_.trans.z = XYZFixed(1) * ToFixed(src->row4.z);
mvp_.trans.w = XYZFixed(1) * ToFixed(src->row4.w);
mvp_row1.x = ToFixed(src->row1.x);
mvp_row1.y = ToFixed(src->row1.y);
mvp_row1.z = ToFixed(src->row1.z);
mvp_row1.w = ToFixed(src->row1.w);
mvp_.row1.x = ToFixed(src->row1.x);
mvp_.row1.y = ToFixed(src->row1.y);
mvp_.row1.z = ToFixed(src->row1.z);
mvp_.row1.w = ToFixed(src->row1.w);
mvp_row2.x = ToFixed(src->row2.x);
mvp_row2.y = ToFixed(src->row2.y);
mvp_row2.z = ToFixed(src->row2.z);
mvp_row2.w = ToFixed(src->row2.w);
mvp_.row2.x = ToFixed(src->row2.x);
mvp_.row2.y = ToFixed(src->row2.y);
mvp_.row2.z = ToFixed(src->row2.z);
mvp_.row2.w = ToFixed(src->row2.w);
mvp_row3.x = ToFixed(src->row3.x);
mvp_row3.y = ToFixed(src->row3.y);
mvp_row3.z = ToFixed(src->row3.z);
mvp_row3.w = ToFixed(src->row3.w);
mvp_.row3.x = ToFixed(src->row3.x);
mvp_.row3.y = ToFixed(src->row3.y);
mvp_.row3.z = ToFixed(src->row3.z);
mvp_.row3.w = ToFixed(src->row3.w);
}
void Gfx_LoadMatrix(MatrixType type, const struct Matrix* matrix) {
@ -475,17 +476,17 @@ void Gfx_DrawVb_Lines(int verticesCount) {
}
static int Transform(IVec3* result, struct SATVertexTextured* a) {
int w = a->x * mvp_row1.w + a->y * mvp_row2.w + a->z * mvp_row3.w + mvp_trans.w;
int w = a->x * mvp_.row1.w + a->y * mvp_.row2.w + a->z * mvp_.row3.w + mvp_.trans.w;
if (w <= 0) return 1;
int x = a->x * mvp_row1.x + a->y * mvp_row2.x + a->z * mvp_row3.x + mvp_trans.x;
int x = a->x * mvp_.row1.x + a->y * mvp_.row2.x + a->z * mvp_.row3.x + mvp_.trans.x;
cpu_divu_32_32_set(x * (SCREEN_WIDTH/2), w);
int y = a->x * mvp_row1.y + a->y * mvp_row2.y + a->z * mvp_row3.y + mvp_trans.y;
int y = a->x * mvp_.row1.y + a->y * mvp_.row2.y + a->z * mvp_.row3.y + mvp_.trans.y;
result->x = cpu_divu_quotient_get();
cpu_divu_32_32_set(y * -(SCREEN_HEIGHT/2), w);
int z = a->x * mvp_row1.z + a->y * mvp_row2.z + a->z * mvp_row3.z + mvp_trans.z;
int z = a->x * mvp_.row1.z + a->y * mvp_.row2.z + a->z * mvp_.row3.z + mvp_.trans.z;
result->y = cpu_divu_quotient_get();
cpu_divu_32_32_set(z * 512, w);

1
src/Graphics_WiiU.c
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@ -290,7 +290,6 @@ void Gfx_SetFogDensity(float value) {
void Gfx_SetFogEnd(float value) {
fogValue.y = 1.0f / value;
GX2SetPixelUniformReg(PS_UNI_OFFSET_FOG, PS_UNI_COUNT_FOG, &fogValue);
// TODO
}
void Gfx_SetFogMode(FogFunc func) {