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-rw-r--r--src/Radar.cpp366
-rw-r--r--src/Radar.h8
-rw-r--r--src/RwHelper.cpp17
-rw-r--r--src/RwHelper.h1
4 files changed, 352 insertions, 40 deletions
diff --git a/src/Radar.cpp b/src/Radar.cpp
index 2dd471f1..90d27af2 100644
--- a/src/Radar.cpp
+++ b/src/Radar.cpp
@@ -1,5 +1,6 @@
#include "common.h"
#include "patcher.h"
+#include "RwHelper.h"
#include "Radar.h"
#include "Camera.h"
#include "Hud.h"
@@ -14,8 +15,6 @@
#include "Streaming.h"
WRAPPER void CRadar::Draw3dMarkers() { EAXJMP(0x4A4C70); }
-WRAPPER int CRadar::ClipRadarPoly(CVector2D *out, CVector2D *in) { EAXJMP(0x4A64A0); }
-WRAPPER void CRadar::TransformRadarPointToRealWorldSpace(CVector2D &out, const CVector2D &in) { EAXJMP(0x4A5300); }
float &CRadar::m_RadarRange = *(float*)0x8E281C;
CBlip *CRadar::ms_RadarTrace = (CBlip*)0x6ED5E0;
@@ -69,6 +68,8 @@ CSprite2d *CRadar::RadarSprites[RADAR_SPRITE_COUNT] = {
};
#define RADAR_NUM_TILES (8)
+#define RADAR_TILE_SIZE (WORLD_SIZE_X / RADAR_NUM_TILES)
+static_assert(RADAR_TILE_SIZE == (WORLD_SIZE_Y / RADAR_NUM_TILES), "CRadar: not a square");
#define RADAR_MIN_RANGE (120.0f)
#define RADAR_MAX_RANGE (350.0f)
@@ -190,18 +191,221 @@ void CRadar::ClearBlipForEntity(eBlipType type, int32 id)
}
#endif
-#if 1
+bool
+IsPointInsideRadar(const CVector2D &point)
+{
+ if(point.x < -1.0f || point.x > 1.0f) return false;
+ if(point.y < -1.0f || point.y > 1.0f) return false;
+ return true;
+}
+
+// clip line p1,p2 against (-1.0, 1.0) in x and y, set out to clipped point closest to p1
+int
+LineRadarBoxCollision(CVector2D &out, const CVector2D &p1, const CVector2D &p2)
+{
+ float d1, d2;
+ float t;
+ float x, y;
+ float shortest = 1.0f;
+ int edge = -1;
+
+ // clip against left edge, x = -1.0
+ d1 = -1.0f - p1.x;
+ d2 = -1.0f - p2.x;
+ if(d1 * d2 < 0.0f){
+ // they are on opposite sides, get point of intersection
+ t = d1 / (d1 - d2);
+ y = (p2.y - p1.y)*t + p1.y;
+ if(y >= -1.0f && y <= 1.0f && t <= shortest){
+ out.x = -1.0f;
+ out.y = y;
+ edge = 3;
+ shortest = t;
+ }
+ }
+
+ // clip against right edge, x = 1.0
+ d1 = p1.x - 1.0f;
+ d2 = p2.x - 1.0f;
+ if(d1 * d2 < 0.0f){
+ // they are on opposite sides, get point of intersection
+ t = d1 / (d1 - d2);
+ y = (p2.y - p1.y)*t + p1.y;
+ if(y >= -1.0f && y <= 1.0f && t <= shortest){
+ out.x = 1.0f;
+ out.y = y;
+ edge = 1;
+ shortest = t;
+ }
+ }
+
+ // clip against top edge, y = -1.0
+ d1 = -1.0f - p1.y;
+ d2 = -1.0f - p2.y;
+ if(d1 * d2 < 0.0f){
+ // they are on opposite sides, get point of intersection
+ t = d1 / (d1 - d2);
+ x = (p2.x - p1.x)*t + p1.x;
+ if(x >= -1.0f && x <= 1.0f && t <= shortest){
+ out.y = -1.0f;
+ out.x = x;
+ edge = 0;
+ shortest = t;
+ }
+ }
+
+ // clip against bottom edge, y = 1.0
+ d1 = p1.y - 1.0f;
+ d2 = p2.y - 1.0f;
+ if(d1 * d2 < 0.0f){
+ // they are on opposite sides, get point of intersection
+ t = d1 / (d1 - d2);
+ x = (p2.x - p1.x)*t + p1.x;
+ if(x >= -1.0f && x <= 1.0f && t <= shortest){
+ out.y = 1.0f;
+ out.x = x;
+ edge = 2;
+ shortest = t;
+ }
+ }
+
+ return edge;
+}
+
+#if 0
+WRAPPER int CRadar::ClipRadarPoly(CVector2D *poly, const CVector2D *in) { EAXJMP(0x4A64A0); }
+#else
+// Why not a proper clipping algorithm?
+int CRadar::ClipRadarPoly(CVector2D *poly, const CVector2D *rect)
+{
+ CVector2D corners[4] = {
+ { 1.0f, -1.0f }, // top right
+ { 1.0f, 1.0f }, // bottom right
+ { -1.0f, 1.0f }, // bottom left
+ { -1.0f, -1.0f }, // top left
+ };
+ CVector2D tmp;
+ int i, j, n;
+ int laste, e, e1, e2;;
+ bool inside[4];
+
+ for(i = 0; i < 4; i++)
+ inside[i] = IsPointInsideRadar(rect[i]);
+
+ laste = -1;
+ n = 0;
+ for(i = 0; i < 4; i++)
+ if(inside[i]){
+ // point is inside, just add
+ poly[n++] = rect[i];
+ }else{
+ // point is outside but line to this point might be clipped
+ e1 = LineRadarBoxCollision(poly[n], rect[i], rect[(i+4-1) % 4]);
+ if(e1 != -1){
+ laste = e1;
+ n++;
+ }
+ // and line from this point might be clipped as well
+ e2 = LineRadarBoxCollision(poly[n], rect[i], rect[(i+1) % 4]);
+ if(e2 != -1){
+ if(e1 == -1){
+ // if other line wasn't clipped, i.e. it was complete outside,
+ // we may have to insert another vertex if last clipped line
+ // was on a different edge
+
+ // find the last intersection if we haven't seen it yet
+ if(laste == -1)
+ for(j = 3; j >= i; j--){
+ // game uses an if here for j == 0
+ e = LineRadarBoxCollision(tmp, rect[j], rect[(j+4-1) % 4]);
+ if(e != -1){
+ laste = e;
+ break;
+ }
+ }
+ assert(laste != -1);
+
+ // insert corners that were skipped
+ tmp = poly[n];
+ for(e = laste; e != e2; e = (e+1) % 4)
+ poly[n++] = corners[e];
+ poly[n] = tmp;
+ }
+ n++;
+ }
+ }
+
+ if(n == 0){
+ // If no points, either the rectangle is completely outside or completely surrounds the radar
+ // no idea what's going on here...
+ float m = (rect[0].y - rect[1].y) / (rect[0].x - rect[1].x);
+ if((m*rect[3].x - rect[3].y) * (m*rect[0].x - rect[0].y) < 0.0f){
+ m = (rect[0].y - rect[3].y) / (rect[0].x - rect[3].x);
+ if((m*rect[1].x - rect[1].y) * (m*rect[0].x - rect[0].y) < 0.0f){
+ poly[0] = corners[0];
+ poly[1] = corners[1];
+ poly[2] = corners[2];
+ poly[3] = corners[3];
+ n = 4;
+ }
+ }
+ }
+
+ return n;
+}
+#endif
+
+#if 0
WRAPPER void CRadar::DrawRadarSection(int x, int y) { EAXJMP(0x4A67E0); }
#else
void CRadar::DrawRadarSection(int x, int y)
{
-
+ int i;
+ RwTexDictionary *txd;
+ CVector2D worldPoly[8];
+ CVector2D radarCorners[4];
+ CVector2D radarPoly[8];
+ CVector2D texCoords[8];
+ CVector2D screenPoly[8];
+ int numVertices;
+ RwTexture *texture = nil;
+
+ GetTextureCorners(x, y, worldPoly);
+ ClipRadarTileCoords(x, y);
+
+ assert(CTxdStore::GetSlot(gRadarTxdIds[x + RADAR_NUM_TILES * y]));
+ txd = CTxdStore::GetSlot(gRadarTxdIds[x + RADAR_NUM_TILES * y])->texDict;
+ if(txd)
+ texture = GetFirstTexture(txd);
+ if(texture == nil)
+ return;
+
+ for(i = 0; i < 4; i++)
+ TransformRealWorldPointToRadarSpace(radarCorners[i], worldPoly[i]);
+
+ numVertices = ClipRadarPoly(radarPoly, radarCorners);
+
+ // FIX: can return earlier here
+// if(numVertices == 0)
+ if(numVertices < 3)
+ return;
+
+ for(i = 0; i< numVertices; i++){
+ TransformRadarPointToRealWorldSpace(worldPoly[i], radarPoly[i]);
+ TransformRealWorldToTexCoordSpace(texCoords[i], worldPoly[i], x, y);
+ TransformRadarPointToScreenSpace(screenPoly[i], radarPoly[i]);
+ }
+ RwRenderStateSet(rwRENDERSTATETEXTURERASTER, RwTextureGetRaster(texture));
+ CSprite2d::SetVertices(numVertices, (float*)screenPoly, (float*)texCoords, CRGBA(255, 255, 255, 255));
+ // check done above now
+// if(numVertices > 2)
+ RwIm2DRenderPrimitive(rwPRIMTYPETRIFAN, CSprite2d::GetVertices(), numVertices);
}
#endif
void CRadar::RequestMapSection(int x, int y)
{
- ClipRadarTileCoords(&x, &y);
+ ClipRadarTileCoords(x, y);
CStreaming::RequestTxd(gRadarTxdIds[x + RADAR_NUM_TILES * y], STREAMFLAGS_DONT_REMOVE|STREAMFLAGS_DEPENDENCY);
}
@@ -249,10 +453,10 @@ WRAPPER void CRadar::TransformRealWorldToTexCoordSpace(CVector2D &out, const CVe
#else
void CRadar::TransformRealWorldToTexCoordSpace(CVector2D &out, const CVector2D &in, int x, int y)
{
- out.x = in.x - (x * 500.0f + WORLD_MIN_X);
- out.y = -(in.y - ((RADAR_NUM_TILES - y) * 500.0f + WORLD_MIN_Y));
- out.x /= 500.0f;
- out.y /= 500.0f;
+ out.x = in.x - (x * RADAR_TILE_SIZE + WORLD_MIN_X);
+ out.y = -(in.y - ((RADAR_NUM_TILES - y) * RADAR_TILE_SIZE + WORLD_MIN_Y));
+ out.x /= RADAR_TILE_SIZE;
+ out.y /= RADAR_TILE_SIZE;
}
#endif
@@ -261,10 +465,13 @@ WRAPPER void CRadar::DrawRadarMap() { EAXJMP(0x4A6C20); }
#else
void CRadar::DrawRadarMap()
{
+ // Game calculates an unused CRect here
+
DrawRadarMask();
- int x = floorf((vec2DRadarOrigin.x - WORLD_MIN_X) / 500.0f);
- int y = round(7.0f - (vec2DRadarOrigin.y - WORLD_MIN_Y) / 500.0f);
+ // top left ist (0, 0)
+ int x = floorf((vec2DRadarOrigin.x - WORLD_MIN_X) / RADAR_TILE_SIZE);
+ int y = ceilf((RADAR_NUM_TILES-1) - (vec2DRadarOrigin.y - WORLD_MIN_Y) / RADAR_TILE_SIZE);
StreamRadarSections(x, y);
RwRenderStateSet(rwRENDERSTATEFOGENABLE, (void*)FALSE);
@@ -279,13 +486,13 @@ void CRadar::DrawRadarMap()
RwRenderStateSet(rwRENDERSTATETEXTUREPERSPECTIVE, (void*)FALSE);
DrawRadarSection(x - 1, y - 1);
- DrawRadarSection(x, y - 1);
+ DrawRadarSection(x, y - 1);
DrawRadarSection(x + 1, y - 1);
DrawRadarSection(x - 1, y);
- DrawRadarSection(x, y);
+ DrawRadarSection(x, y);
DrawRadarSection(x + 1, y);
DrawRadarSection(x - 1, y + 1);
- DrawRadarSection(x, y + 1);
+ DrawRadarSection(x, y + 1);
DrawRadarSection(x + 1, y + 1);
}
#endif
@@ -490,14 +697,47 @@ void CRadar::TransformRealWorldPointToRadarSpace(CVector2D &out, const CVector2D
s = sin(atan2(-forward.x, forward.y));
c = cos(atan2(-forward.x, forward.y));
}
-
+
float x = (in.x - vec2DRadarOrigin.x) * (1.0f / m_RadarRange);
float y = (in.y - vec2DRadarOrigin.y) * (1.0f / m_RadarRange);
-
+
out.x = s * y + c * x;
out.y = c * y - s * x;
}
-#endif
+#endif
+
+#if 0
+WRAPPER void CRadar::TransformRadarPointToRealWorldSpace(CVector2D &out, const CVector2D &in) { EAXJMP(0x4A5300); }
+#else
+void CRadar::TransformRadarPointToRealWorldSpace(CVector2D &out, const CVector2D &in)
+{
+ float s, c;
+
+ s = -sin(atan2(-TheCamera.GetForward().x, TheCamera.GetForward().y));
+ c = cos(atan2(-TheCamera.GetForward().x, TheCamera.GetForward().y));
+
+ if (TheCamera.Cams[TheCamera.ActiveCam].Mode == CCam::MODE_TOPDOWN1 || TheCamera.Cams[TheCamera.ActiveCam].Mode == CCam::MODE_TOPDOWNPED) {
+ s = 0.0f;
+ c = 1.0f;
+ } else if (TheCamera.GetLookDirection() != LOOKING_FORWARD) {
+ CVector forward;
+
+ if (TheCamera.Cams[TheCamera.ActiveCam].Mode == CCam::MODE_FIRSTPERSON) {
+ forward = TheCamera.Cams[TheCamera.ActiveCam].CamTargetEntity->GetForward();
+ forward.Normalise(); // a bit useless...
+ } else
+ forward = TheCamera.Cams[TheCamera.ActiveCam].CamTargetEntity->GetPosition() - TheCamera.Cams[TheCamera.ActiveCam].SourceBeforeLookBehind;
+
+ s = -sin(atan2(-forward.x, forward.y));
+ c = cos(atan2(-forward.x, forward.y));
+ }
+
+ out.x = s * in.y + c * in.x;
+ out.y = c * in.y - s * in.x;
+
+ out = out*m_RadarRange + vec2DRadarOrigin;
+}
+#endif
#if 0
WRAPPER void CRadar::DrawRadarSprite(int sprite, float x, float y, int alpha) { EAXJMP(0x4A5EF0); }
@@ -554,13 +794,13 @@ void CRadar::DrawRotatingRadarSprite(CSprite2d* sprite, float x, float y, float
curPosn[0].x = x - SCREEN_SCALE_X(5.6f);
curPosn[0].y = y + SCREEN_SCALE_Y(5.6f);
-
+
curPosn[1].x = x + SCREEN_SCALE_X(5.6f);
curPosn[1].y = y + SCREEN_SCALE_Y(5.6f);
-
+
curPosn[2].x = x - SCREEN_SCALE_X(5.6f);
curPosn[2].y = y - SCREEN_SCALE_Y(5.6f);
-
+
curPosn[3].x = x + SCREEN_SCALE_X(5.6f);
curPosn[3].y = y - SCREEN_SCALE_Y(5.6f);
@@ -590,31 +830,83 @@ bool CRadar::DisplayThisBlip(int counter)
#if 0
WRAPPER void CRadar::GetTextureCorners(int x, int y, CVector2D *out) { EAXJMP(0x4A61C0); };
#else
+// Transform from section indices to world coordinates
void CRadar::GetTextureCorners(int x, int y, CVector2D *out)
{
- out[0].x = 500.0f * (x - 4);
- out[0].y = 500.0f * (3 - y);
- out[1].x = 500.0f * (y - 4 + 1);
- out[1].y = 500.0f * (3 - y);
- out[2].x = 500.0f * (y - 4 + 1);
- out[2].y = 500.0f * (3 - y + 1);
- out[3].x = 500.0f * (x - 4);
- out[3].y = 500.0f * (3 - y + 1);
+ x = x - RADAR_NUM_TILES/2;
+ y = -(y - RADAR_NUM_TILES/2);
+
+ // bottom left
+ out[0].x = RADAR_TILE_SIZE * (x);
+ out[0].y = RADAR_TILE_SIZE * (y - 1);
+
+ // bottom right
+ out[1].x = RADAR_TILE_SIZE * (x + 1);
+ out[1].y = RADAR_TILE_SIZE * (y - 1);
+
+ // top right
+ out[2].x = RADAR_TILE_SIZE * (x + 1);
+ out[2].y = RADAR_TILE_SIZE * (y);
+
+ // top left
+ out[3].x = RADAR_TILE_SIZE * (x);
+ out[3].y = RADAR_TILE_SIZE * (y);
}
#endif
-void CRadar::ClipRadarTileCoords(int *x, int *y)
+void CRadar::ClipRadarTileCoords(int &x, int &y)
{
- if (*x < 0)
- *x = 0;
- if (*x > 7)
- *x = 7;
- if (*y < 0)
- *y = 0;
- if (*y > 7)
- *y = 7;
+ if (x < 0)
+ x = 0;
+ if (x > RADAR_NUM_TILES-1)
+ x = RADAR_NUM_TILES-1;
+ if (y < 0)
+ y = 0;
+ if (y > RADAR_NUM_TILES-1)
+ y = RADAR_NUM_TILES-1;
}
STARTPATCHES
+// InjectHook(0x4A3EF0, CRadar::Initialise, PATCH_JUMP);
+// InjectHook(0x4A3F60, CRadar::Shutdown, PATCH_JUMP);
+// InjectHook(0x4A4030, CRadar::LoadTextures, PATCH_JUMP);
+// InjectHook(0x4A4180, CRadar::GetNewUniqueBlipIndex, PATCH_JUMP);
+// InjectHook(0x4A41C0, CRadar::GetActualBlipArrayIndex, PATCH_JUMP);
+ InjectHook(0x4A4200, CRadar::DrawMap, PATCH_JUMP);
+ InjectHook(0x4A42F0, CRadar::DrawBlips, PATCH_JUMP);
+// InjectHook(0x4A4C70, CRadar::Draw3dMarkers, PATCH_JUMP);
+ InjectHook(0x4A4F30, CRadar::LimitRadarPoint, PATCH_JUMP);
+ InjectHook(0x4A4F90, CRadar::CalculateBlipAlpha, PATCH_JUMP);
InjectHook(0x4A5040, CRadar::TransformRadarPointToScreenSpace, PATCH_JUMP);
+ InjectHook(0x4A50D0, CRadar::TransformRealWorldPointToRadarSpace, PATCH_JUMP);
+ InjectHook(0x4A5300, CRadar::TransformRadarPointToRealWorldSpace, PATCH_JUMP);
+ InjectHook(0x4A5530, CRadar::TransformRealWorldToTexCoordSpace, PATCH_JUMP);
+// InjectHook(0x4A5590, CRadar::SetCoordBlip, PATCH_JUMP);
+// InjectHook(0x4A5640, CRadar::SetEntityBlip, PATCH_JUMP);
+ InjectHook(0x4A56C0, CRadar::ClearBlipForEntity, PATCH_JUMP);
+// InjectHook(0x4A5720, CRadar::ClearBlip, PATCH_JUMP);
+// InjectHook(0x4A5770, CRadar::ChangeBlipColour, PATCH_JUMP);
+// InjectHook(0x4A57A0, CRadar::ChangeBlipBrightness, PATCH_JUMP);
+// InjectHook(0x4A57E0, CRadar::ChangeBlipScale, PATCH_JUMP);
+// InjectHook(0x4A5810, CRadar::ChangeBlipDisplay, PATCH_JUMP);
+// InjectHook(0x4A5840, CRadar::SetBlipSprite, PATCH_JUMP);
+ InjectHook(0x4A5870, CRadar::ShowRadarTrace, PATCH_JUMP);
+ InjectHook(0x4A59C0, CRadar::ShowRadarMarker, PATCH_JUMP);
+ InjectHook(0x4A5BB0, CRadar::GetRadarTraceColour, PATCH_JUMP);
+ InjectHook(0x4A5C60, CRadar::SetRadarMarkerState, PATCH_JUMP);
+ InjectHook(0x4A5D10, CRadar::DrawRotatingRadarSprite, PATCH_JUMP);
+ InjectHook(0x4A5EF0, CRadar::DrawRadarSprite, PATCH_JUMP);
+// InjectHook(0x4A60E0, CRadar::RemoveRadarSections, PATCH_JUMP);
+ InjectHook(0x4A6100, CRadar::StreamRadarSections, PATCH_JUMP);
+ InjectHook(0x4A64A0, CRadar::ClipRadarPoly, PATCH_JUMP);
+ InjectHook(0x4A67E0, CRadar::DrawRadarSection, PATCH_JUMP);
+ InjectHook(0x4A69C0, CRadar::DrawRadarMask, PATCH_JUMP);
+// InjectHook(0x4A6B60, CRadar::StreamRadarSections, PATCH_JUMP);
+ InjectHook(0x4A6C20, CRadar::DrawRadarMap, PATCH_JUMP);
+// InjectHook(0x4A6E30, CRadar::SaveAllRadarBlips, PATCH_JUMP);
+// InjectHook(0x4A6F30, CRadar::LoadAllRadarBlips, PATCH_JUMP);
+
+ InjectHook(0x4A61C0, CRadar::GetTextureCorners, PATCH_JUMP);
+ InjectHook(0x4A6160, IsPointInsideRadar, PATCH_JUMP);
+ InjectHook(0x4A6250, LineRadarBoxCollision, PATCH_JUMP);
ENDPATCHES
diff --git a/src/Radar.h b/src/Radar.h
index 9e687e24..dec07667 100644
--- a/src/Radar.h
+++ b/src/Radar.h
@@ -100,7 +100,7 @@ public:
static void Draw3dMarkers();
static void DrawMap();
static void StreamRadarSections(int x, int y);
- static int ClipRadarPoly(CVector2D *out, CVector2D *in);
+ static int ClipRadarPoly(CVector2D *out, const CVector2D *in);
static void DrawRadarSection(int x, int y);
static void RequestMapSection(int x, int y);
static void RemoveMapSection(int x, int y);
@@ -116,10 +116,12 @@ public:
static void DrawRadarMask();
static void SetRadarMarkerState(int counter, int flag);
static bool DisplayThisBlip(int counter);
- static void GetTextureCorners(int x, int y, CVector2D * out);
- static void ClipRadarTileCoords(int *x, int *y);
static void TransformRealWorldToTexCoordSpace(CVector2D &out, const CVector2D &in, int x, int y);
static void TransformRadarPointToRealWorldSpace(CVector2D &out, const CVector2D &in);
static void TransformRadarPointToScreenSpace(CVector2D &out, const CVector2D &in);
static void TransformRealWorldPointToRadarSpace(CVector2D &out, const CVector2D &in);
+
+ // no in CRadar in the game:
+ static void GetTextureCorners(int x, int y, CVector2D *out);
+ static void ClipRadarTileCoords(int &x, int &y);
};
diff --git a/src/RwHelper.cpp b/src/RwHelper.cpp
index 5aa31e92..3c198272 100644
--- a/src/RwHelper.cpp
+++ b/src/RwHelper.cpp
@@ -108,6 +108,23 @@ GetFirstAtomic(RpClump *clump)
return atm;
}
+RwTexture*
+GetFirstTextureCallback(RwTexture *tex, void *data)
+{
+ *(RwTexture**)data = tex;
+ return nil;
+}
+
+RwTexture*
+GetFirstTexture(RwTexDictionary *txd)
+{
+ RwTexture *tex;
+
+ tex = nil;
+ RwTexDictionaryForAllTextures(txd, GetFirstTextureCallback, &tex);
+ return tex;
+}
+
void
CameraSize(RwCamera * camera, RwRect * rect,
RwReal viewWindow, RwReal aspectRatio)
diff --git a/src/RwHelper.h b/src/RwHelper.h
index e0ec00a3..ef20467d 100644
--- a/src/RwHelper.h
+++ b/src/RwHelper.h
@@ -7,6 +7,7 @@ void DefinedState(void);
RwFrame *GetFirstChild(RwFrame *frame);
RwObject *GetFirstObject(RwFrame *frame);
RpAtomic *GetFirstAtomic(RpClump *clump);
+RwTexture *GetFirstTexture(RwTexDictionary *txd);
RwTexDictionary *RwTexDictionaryGtaStreamRead(RwStream *stream);
RwTexDictionary *RwTexDictionaryGtaStreamRead1(RwStream *stream);