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Code Issues Releases Wiki Activity

GBA optimizations

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This commit is contained in:
Timur Gagiev
2020-10-29 06:28:06 +03:00
parent 7a3c15d29c
commit 7ad630da26
2 changed files with 52 additions and 29 deletions
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20
src/platform/gba/common.h
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@@ -71,6 +71,26 @@ typedef int16 Index;
#define ALIGN4
#else
#define ALIGN4 __attribute__ ((aligned (4)))
// TODO profiling
#define REG_TM2D *(vu16*)(REG_BASE+0x0108)
#define REG_TM3D *(vu16*)(REG_BASE+0x010C)
#define TM_ENABLE 0x800000
#define TM_CASCADE 0x0004
INLINE void profile_start()
{
REG_TM2D= 0; REG_TM3D= 0;
REG_TM2CNT= 0; REG_TM3CNT= 0;
REG_TM3CNT= TM_ENABLE | TM_CASCADE;
REG_TM2CNT= TM_ENABLE;
}
INLINE uint32 profile_stop()
{
REG_TM2CNT= 0;
return (REG_TM3D<<16)|REG_TM2D;
}
#endif
enum InputKey {

61
src/platform/gba/render.iwram.cpp
View File

@@ -30,7 +30,6 @@ int32 gFacesCount = 0;
Face* gFacesSorted[MAX_FACES];
EWRAM_DATA Face gFaces[MAX_FACES];
const uint8* curTile;
uint16 mipMask;
Rect clip;
@@ -302,7 +301,7 @@ void transform(const vec3s &v, int32 vg) {
const Matrix &m = matrixStack[matrixStackIndex];
Vertex &res = gVertices[gVerticesCount++];
// TODO https://mikro.naprvyraz.sk/docs/Coding/1/3D-ROTAT.TXT
int32 z = DP43(m[2], v);
if (z < VIEW_MIN_F || z >= VIEW_MAX_F) { // TODO znear clip
@@ -328,9 +327,9 @@ void transform(const vec3s &v, int32 vg) {
z >>= FOV_SHIFT;
#if 1
x >>= 11;
y >>= 11;
z >>= 11;
x >>= (10 + SCALE);
y >>= (10 + SCALE);
z >>= (10 + SCALE);
#ifdef WIN32
if (abs(z) >= DIV_TABLE_SIZE) {
@@ -488,14 +487,16 @@ VertexUV* clipPoly(VertexUV* poly, VertexUV* tmp, int32 &pCount) {
#ifdef DEBUG_OVERDRAW
#define FETCH_GT() 32
#define FETCH_G(palIndex) 32
#define FETCH_GT_PAL() 32
#define FETCH_G_PAL(palIndex) 32
#else
#define FETCH_T() curTile[(t & 0xFF00) | (t >> 24)]
#define FETCH_T_MIP() curTile[(t & 0xFF00) | (t >> 24) & mipMask]
#define FETCH_T() tile[(t & 0xFF00) | (t >> 24)]
#define FETCH_T_MIP() tile[(t & 0xFF00) | (t >> 24) & mipMask]
#define FETCH_GT() lightmap[(g & 0x1F00) | FETCH_T()]
#define FETCH_G(palIndex) lightmap[(g & 0x1F00) | palIndex]
#endif
#define FETCH_GT_PAL() palette[FETCH_GT()]
#define FETCH_G_PAL(palIndex) palette[FETCH_G(palIndex)]
#endif
struct Edge {
int32 h;
@@ -591,7 +592,7 @@ struct Edge {
}
};
INLINE void scanlineG(uint16* buffer, int32 x1, int32 x2, uint8 palIndex, uint32 g, uint32 dgdx) {
INLINE void scanlineG(const uint8 *tile, uint16* buffer, int32 x1, int32 x2, uint8 palIndex, uint32 g, uint32 dgdx) {
#ifdef USE_MODE_5
uint16* pixel = buffer + x1;
@@ -673,7 +674,7 @@ INLINE void scanlineG(uint16* buffer, int32 x1, int32 x2, uint8 palIndex, uint32
#endif
}
INLINE void scanlineGT(uint16* buffer, int32 x1, int32 x2, uint32 g, uint32 t, uint32 dgdx, uint32 dtdx) {
INLINE void scanlineGT(const uint8 *tile, uint16* buffer, int32 x1, int32 x2, uint32 g, uint32 t, uint32 dgdx, uint32 dtdx) {
#ifdef USE_MODE_5
uint16* pixel = buffer + x1;
@@ -768,7 +769,7 @@ INLINE void scanlineGT(uint16* buffer, int32 x1, int32 x2, uint32 g, uint32 t, u
#endif
}
void rasterizeG(int16 y, int32 palIndex, Edge &L, Edge &R) {
void rasterizeG(const uint8 *tile, int16 y, int32 palIndex, Edge &L, Edge &R) {
uint16 *buffer = (uint16*)fb + y * (WIDTH / PIXEL_SIZE);
while (1)
@@ -804,7 +805,7 @@ void rasterizeG(int16 y, int32 palIndex, Edge &L, Edge &R) {
uint32 dgdx = d * ((R.g - L.g) >> 8) >> 16;
scanlineG(buffer, x1, x2, palIndex, L.g >> 8, dgdx);
scanlineG(tile, buffer, x1, x2, palIndex, L.g >> 8, dgdx);
}
buffer += WIDTH / PIXEL_SIZE;
@@ -815,7 +816,7 @@ void rasterizeG(int16 y, int32 palIndex, Edge &L, Edge &R) {
}
}
void rasterizeGT(int16 y, Edge &L, Edge &R) {
void rasterizeGT(const uint8 *tile, int16 y, Edge &L, Edge &R) {
uint16 *buffer = (uint16*)fb + y * (WIDTH / PIXEL_SIZE);
while (1)
@@ -855,7 +856,7 @@ void rasterizeGT(int16 y, Edge &L, Edge &R) {
uint32 v = d * ((R.t & 0xFFFF) - (L.t & 0xFFFF));
uint32 dtdx = (u & 0xFFFF0000) | (v >> 16);
scanlineGT(buffer, x1, x2, L.g >> 8, L.t, dgdx, dtdx);
scanlineGT(tile, buffer, x1, x2, L.g >> 8, L.t, dgdx, dtdx);
};
buffer += WIDTH / PIXEL_SIZE;
@@ -866,7 +867,7 @@ void rasterizeGT(int16 y, Edge &L, Edge &R) {
}
}
void drawTriangle(const Face* face, VertexUV *v) {
void drawTriangle(const uint8* tile, const Face* face, VertexUV *v) {
VertexUV *v1 = v + 0,
*v2 = v + 1,
*v3 = v + 2;
@@ -905,13 +906,13 @@ void drawTriangle(const Face* face, VertexUV *v) {
}
if (face->flags & FACE_COLORED) {
rasterizeG(v1->v.y, face->flags & FACE_TEXTURE, L, R);
rasterizeG(tile, v1->v.y, face->flags & FACE_TEXTURE, L, R);
} else {
rasterizeGT(v1->v.y, L, R);
rasterizeGT(tile, v1->v.y, L, R);
}
}
void drawQuad(const Face* face, VertexUV *v) {
void drawQuad(const uint8* tile, const Face* face, VertexUV *v) {
VertexUV *v1 = v + 0,
*v2 = v + 1,
*v3 = v + 2,
@@ -955,13 +956,13 @@ void drawQuad(const Face* face, VertexUV *v) {
} while (poly[b] != v1);
if (face->flags & FACE_COLORED) {
rasterizeG(v1->v.y, face->flags & FACE_TEXTURE, L, R);
rasterizeG(tile, v1->v.y, face->flags & FACE_TEXTURE, L, R);
} else {
rasterizeGT(v1->v.y, L, R);
rasterizeGT(tile, v1->v.y, L, R);
}
}
void drawPoly(Face* face, VertexUV *v) {
void drawPoly(const uint8* tile, Face* face, VertexUV* v) {
VertexUV tmp[16];
int32 count = (face->flags & FACE_TRIANGLE) ? 3 : 4;
@@ -977,9 +978,9 @@ void drawPoly(Face* face, VertexUV *v) {
face->indices[3] = 3;
if (count == 3) {
drawTriangle(face, v);
drawTriangle(tile, face, v);
} else {
drawQuad(face, v);
drawQuad(tile, face, v);
}
return;
}
@@ -1008,9 +1009,9 @@ void drawPoly(Face* face, VertexUV *v) {
R.build(v, count, t, b, count - 1);
if (face->flags & FACE_COLORED) {
rasterizeG(v[t].v.y, face->flags & FACE_TEXTURE, L, R);
rasterizeG(tile, v[t].v.y, face->flags & FACE_TEXTURE, L, R);
} else {
rasterizeGT(v[t].v.y, L, R);
rasterizeGT(tile, v[t].v.y, L, R);
}
}
@@ -1166,6 +1167,8 @@ void flush() {
//const uint16 mips[] = { 0xFFFF, 0xFEFE, 0xFCFC, 0xF8F8 };
const uint8* gTile = NULL;
for (int32 i = 0; i < gFacesCount; i++) {
Face *face = gFacesSorted[i];
@@ -1178,7 +1181,7 @@ void flush() {
if (!(flags & FACE_COLORED)) {
const Texture &tex = textures[face->flags & FACE_TEXTURE];
curTile = tiles[tex.tile];
gTile = tiles[tex.tile];
v[0].uv = tex.uv0;
v[1].uv = tex.uv1;
v[2].uv = tex.uv2;
@@ -1194,12 +1197,12 @@ void flush() {
}
if (flags & FACE_CLIPPED) {
drawPoly(face, v);
drawPoly(gTile, face, v);
} else {
if (flags & FACE_TRIANGLE) {
drawTriangle(face, v);
drawTriangle(gTile, face, v);
} else {
drawQuad(face, v);
drawQuad(gTile, face, v);
}
};
}