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avoid to recalculate MVP when its not needed + tweaks

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This commit is contained in:
Bigfoot71 2025-03-13 20:53:18 +01:00
parent 363f3afa60
commit 6b8978cb3e
1 changed files with 26 additions and 9 deletions
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31
src/external/rlsw.h vendored
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@ -430,6 +430,7 @@ typedef struct {
SWmatrix currentMatrixMode; // Current matrix mode (e.g., sw_MODELVIEW, sw_PROJECTION) SWmatrix currentMatrixMode; // Current matrix mode (e.g., sw_MODELVIEW, sw_PROJECTION)
bool modelMatrixUsed; // Flag indicating if the model matrix is used bool modelMatrixUsed; // Flag indicating if the model matrix is used
bool needToUpdateMVP;
SWfactor srcFactor; SWfactor srcFactor;
SWfactor dstFactor; SWfactor dstFactor;
@ -1467,7 +1468,7 @@ static inline void sw_triangle_render(const sw_vertex_t* v0, const sw_vertex_t*
/* === Line Rendering Part === */ /* === Line Rendering Part === */
uint8_t sw_line_clip_encode_2d(const float screen[2], int xMin, int yMin, int xMax, int yMax) static inline uint8_t sw_line_clip_encode_2d(const float screen[2], int xMin, int yMin, int xMax, int yMax)
{ {
uint8_t code = SW_CLIP_INSIDE; uint8_t code = SW_CLIP_INSIDE;
if (screen[0] < xMin) code |= SW_CLIP_LEFT; if (screen[0] < xMin) code |= SW_CLIP_LEFT;
@ -1477,7 +1478,7 @@ uint8_t sw_line_clip_encode_2d(const float screen[2], int xMin, int yMin, int xM
return code; return code;
} }
bool sw_line_clip_2d(sw_vertex_t* v1, sw_vertex_t* v2) static inline bool sw_line_clip_2d(sw_vertex_t* v1, sw_vertex_t* v2)
{ {
int xMin = RLSW.vpMin[0]; int xMin = RLSW.vpMin[0];
int yMin = RLSW.vpMin[1]; int yMin = RLSW.vpMin[1];
@ -1531,7 +1532,7 @@ bool sw_line_clip_2d(sw_vertex_t* v1, sw_vertex_t* v2)
return accept; return accept;
} }
bool sw_line_clip_coord_3d(float q, float p, float* t1, float* t2) static inline bool sw_line_clip_coord_3d(float q, float p, float* t1, float* t2)
{ {
if (fabsf(p) < SW_CLIP_EPSILON) { if (fabsf(p) < SW_CLIP_EPSILON) {
// Check if the line is entirely outside the window // Check if the line is entirely outside the window
@ -1552,7 +1553,7 @@ bool sw_line_clip_coord_3d(float q, float p, float* t1, float* t2)
return 1; return 1;
} }
bool sw_line_clip_3d(sw_vertex_t* v1, sw_vertex_t* v2) static inline bool sw_line_clip_3d(sw_vertex_t* v1, sw_vertex_t* v2)
{ {
// TODO: Lerp all vertices here, not just homogeneous coordinates // TODO: Lerp all vertices here, not just homogeneous coordinates
@ -1587,7 +1588,7 @@ bool sw_line_clip_3d(sw_vertex_t* v1, sw_vertex_t* v2)
return true; return true;
} }
bool sw_line_project_and_clip(sw_vertex_t* v0, sw_vertex_t* v1) static inline bool sw_line_project_and_clip(sw_vertex_t* v0, sw_vertex_t* v1)
{ {
sw_vec4_transform(v0->homogeneous, v0->position, RLSW.matMVP); sw_vec4_transform(v0->homogeneous, v0->position, RLSW.matMVP);
sw_vec4_transform(v1->homogeneous, v1->position, RLSW.matMVP); sw_vec4_transform(v1->homogeneous, v1->position, RLSW.matMVP);
@ -1619,7 +1620,7 @@ bool sw_line_project_and_clip(sw_vertex_t* v0, sw_vertex_t* v1)
} }
#define DEFINE_LINE_RASTER(FUNC_NAME, ENABLE_DEPTH_TEST, ENABLE_COLOR_BLEND) \ #define DEFINE_LINE_RASTER(FUNC_NAME, ENABLE_DEPTH_TEST, ENABLE_COLOR_BLEND) \
void FUNC_NAME(const sw_vertex_t* v0, const sw_vertex_t* v1) \ static inline void FUNC_NAME(const sw_vertex_t* v0, const sw_vertex_t* v1) \
{ \ { \
int x1 = (int)v0->screen[0]; \ int x1 = (int)v0->screen[0]; \
int y1 = (int)v0->screen[1]; \ int y1 = (int)v0->screen[1]; \
@ -2089,6 +2090,8 @@ void swPopMatrix(void)
void swLoadIdentity(void) void swLoadIdentity(void)
{ {
sw_matrix_id(*RLSW.currentMatrix); sw_matrix_id(*RLSW.currentMatrix);
RLSW.needToUpdateMVP = true;
} }
void swTranslatef(float x, float y, float z) void swTranslatef(float x, float y, float z)
@ -2101,6 +2104,8 @@ void swTranslatef(float x, float y, float z)
mat[14] = z; mat[14] = z;
sw_matrix_mul(*RLSW.currentMatrix, mat, *RLSW.currentMatrix); sw_matrix_mul(*RLSW.currentMatrix, mat, *RLSW.currentMatrix);
RLSW.needToUpdateMVP = true;
} }
void swRotatef(float angle, float x, float y, float z) void swRotatef(float angle, float x, float y, float z)
@ -2143,6 +2148,8 @@ void swRotatef(float angle, float x, float y, float z)
mat[15] = 1.0f; mat[15] = 1.0f;
sw_matrix_mul(*RLSW.currentMatrix, mat, *RLSW.currentMatrix); sw_matrix_mul(*RLSW.currentMatrix, mat, *RLSW.currentMatrix);
RLSW.needToUpdateMVP = true;
} }
void swScalef(float x, float y, float z) void swScalef(float x, float y, float z)
@ -2155,11 +2162,15 @@ void swScalef(float x, float y, float z)
mat[12] = 0, mat[13] = 0, mat[14] = 0, mat[15] = 1; mat[12] = 0, mat[13] = 0, mat[14] = 0, mat[15] = 1;
sw_matrix_mul(*RLSW.currentMatrix, mat, *RLSW.currentMatrix); sw_matrix_mul(*RLSW.currentMatrix, mat, *RLSW.currentMatrix);
RLSW.needToUpdateMVP = true;
} }
void swMultMatrixf(const float* mat) void swMultMatrixf(const float* mat)
{ {
sw_matrix_mul(*RLSW.currentMatrix, *RLSW.currentMatrix, mat); sw_matrix_mul(*RLSW.currentMatrix, *RLSW.currentMatrix, mat);
RLSW.needToUpdateMVP = true;
} }
void swFrustum(double left, double right, double bottom, double top, double znear, double zfar) void swFrustum(double left, double right, double bottom, double top, double znear, double zfar)
@ -2191,6 +2202,8 @@ void swFrustum(double left, double right, double bottom, double top, double znea
mat[15] = 0.0f; mat[15] = 0.0f;
sw_matrix_mul(*RLSW.currentMatrix, *RLSW.currentMatrix, mat); sw_matrix_mul(*RLSW.currentMatrix, *RLSW.currentMatrix, mat);
RLSW.needToUpdateMVP = true;
} }
void swOrtho(double left, double right, double bottom, double top, double znear, double zfar) void swOrtho(double left, double right, double bottom, double top, double znear, double zfar)
@ -2222,6 +2235,8 @@ void swOrtho(double left, double right, double bottom, double top, double znear,
mat[15] = 1.0f; mat[15] = 1.0f;
sw_matrix_mul(*RLSW.currentMatrix, *RLSW.currentMatrix, mat); sw_matrix_mul(*RLSW.currentMatrix, *RLSW.currentMatrix, mat);
RLSW.needToUpdateMVP = true;
} }
void swViewport(int x, int y, int width, int height) void swViewport(int x, int y, int width, int height)
@ -2394,9 +2409,11 @@ void swVertex4fv(const float* v)
if (RLSW.vertexCounter == neededVertices) { if (RLSW.vertexCounter == neededVertices) {
// TODO: Optimize MVP calculation if (RLSW.needToUpdateMVP) {
RLSW.needToUpdateMVP = false;
sw_matrix_mul(RLSW.matMVP, RLSW.matModel, RLSW.matView); sw_matrix_mul(RLSW.matMVP, RLSW.matModel, RLSW.matView);
sw_matrix_mul(RLSW.matMVP, RLSW.matMVP, RLSW.matProjection); sw_matrix_mul(RLSW.matMVP, RLSW.matMVP, RLSW.matProjection);
}
switch (RLSW.drawMode) { switch (RLSW.drawMode) {
case SW_POINTS: case SW_POINTS: