fixed /imageinfo and /shadermixeduse

code/renderer/tr_image.cpp

@@ -143,21 +143,34 @@ void R_ImageInfo_f()
 
 	const char* const name = Cmd_Argv(1);
 	const image_t* image = NULL;
+	int imageIndex = -1;
 	for ( int i = 0; i < tr.numImages; i++ ) {
 		if ( !Q_stricmp( tr.images[i]->name, name ) ) {
 			image = tr.images[i];
+			imageIndex = i;
 			break;
 		}
 	}
 
+	if ( imageIndex < 0 ) {
+		ri.Printf( PRINT_ALL, "image not found\n" );
+		return;
+	}
+
 	char pakName[256];
 	if ( FS_GetPakPath( pakName, sizeof( pakName ), image->pakChecksum ) ) {
 		ri.Printf( PRINT_ALL, "%s/%s\n", pakName, image->name );
 	}
 
 	ri.Printf( PRINT_ALL, "Used in these shaders:\n" );
-	for ( int s = 0; s < image->numShaders; ++s ) {
-		const shader_t* const shader = tr.imageShaders[image->firstShaderIndex + s];
+	for ( int is = 0; is < ARRAY_LEN( tr.imageShaders ); ++is ) {
+		const int i = tr.imageShaders[is] & 0xFFFF;
+		if ( i != imageIndex ) {
+			continue;
+		}
+
+		const int s = (tr.imageShaders[is] >> 16) & 0xFFFF;
+		const shader_t* const shader = tr.shaders[s];
 		const qbool nmmS = shader->imgflags & IMG_NOMIPMAP;
 		const qbool npmS = shader->imgflags & IMG_NOPICMIP;
 		ri.Printf( PRINT_ALL, "%s %s %s\n",
@@ -391,6 +404,11 @@ image_t* R_CreateImage( const char* name, byte* pic, int width, int height, text
 	image->height = height;
 	image->wrapClampMode = glWrapClampMode;
 
+	image->index = tr.numImages;
+	image->numShaders = 0;
+	image->flags0 = 0;
+	image->flags1 = 0;
+
 	tr.numImages++;
 
 	Upload32( image, (unsigned int*)pic );	
@@ -1182,13 +1200,18 @@ void R_AddImageShader( image_t* image, shader_t* shader )
 	if (tr.numImageShaders >= ARRAY_LEN( tr.imageShaders ))
 		return;
 
+	const int imageShader = (shader->index << 16) | image->index;
+	for (int is = 0; is < tr.numImageShaders; ++is) {
+		if (tr.imageShaders[is] == imageShader)
+			return;
+	}
+
 	// we consider index 0 to be invalid
 	if (tr.numImageShaders == 0)
 		tr.numImageShaders++;
 
-	tr.imageShaders[tr.numImageShaders] = shader;
-	if (image->firstShaderIndex == 0)
-		image->firstShaderIndex = tr.numImageShaders;
+	tr.imageShaders[tr.numImageShaders++] = imageShader;
 	image->numShaders++;
-	tr.numImageShaders++;
+	image->flags0 |= shader->imgflags ^ -1;
+	image->flags1 |= shader->imgflags;
 }

code/renderer/tr_init.cpp

@@ -343,7 +343,7 @@ static const cmdTableItem_t r_cmds[] =
 	{ "imageinfo", R_ImageInfo_f, NULL, "prints info for a specific image" },
 	{ "shaderlist", R_ShaderList_f, NULL, "prints loaded shaders" },
 	{ "shaderinfo", R_ShaderInfo_f, R_CompleteShaderName_f, "prints info for a specific shader" },
-	{ "shadermixeduse", R_MixedUse_f, NULL, "prints all mixed use issues" },
+	{ "shadermixeduse", R_ShaderMixedUse_f, NULL, "prints all mixed use issues" },
 	{ "skinlist", R_SkinList_f, NULL, "prints loaded skins" },
 	{ "modellist", R_Modellist_f, NULL, "prints loaded models" },
 	{ "screenshot", R_ScreenShotTGA_f, NULL, "takes a TARGA (.tga) screenshot" },

code/renderer/tr_local.h

@@ -101,11 +101,11 @@ struct image_t {
 
 	char	name[MAX_QPATH];	// game path, including extension
 
-	// used to index into tr.imageShaders
-	int		firstShaderIndex;
-	int		numShaders;
-
 	int		pakChecksum;
+	int		index;				// indexes tr.images
+	int		numShaders;			// number of shaders referencing this image
+	int		flags0;				// flags requested to be 0 by at least 1 shader
+	int		flags1;				// flags requested to be 1 by at least 1 shader
 };
 
 
@@ -916,7 +916,9 @@ typedef struct {
 	int numImages;
 	image_t* images[MAX_DRAWIMAGES];
 
-	shader_t*	imageShaders[2048];
+	// associative array of image_t and shader_t indices where each entry is unique
+	// the indices index into tr.images and tr.shaders
+	int			imageShaders[2048]; // shader index in high 16 bits, image index in low 16 bits
 	int			numImageShaders;
 
 	// shader indexes from other modules will be looked up in tr.shaders[]
@@ -1209,7 +1211,7 @@ const shader_t* R_GetShaderByHandle( qhandle_t hShader );
 void		R_InitShaders();
 void		R_ShaderList_f( void );
 void		R_ShaderInfo_f();
-void		R_MixedUse_f();
+void		R_ShaderMixedUse_f();
 void		R_CompleteShaderName_f( int startArg, int compArg );
 const char* R_GetShaderPath( const shader_t* shader );
 

code/renderer/tr_shader.cpp

@@ -2912,7 +2912,7 @@ void R_ShaderInfo_f()
 }
 
 
-void R_MixedUse_f()
+void R_ShaderMixedUse_f()
 {
 	for ( int i = 0; i < tr.numImages; ++i ) {
 		image_t* const image = tr.images[i];
@@ -2920,27 +2920,20 @@ void R_MixedUse_f()
 			continue;
 		}
 
-		const qbool nmm0 = tr.imageShaders[image->firstShaderIndex]->imgflags & IMG_NOMIPMAP;
-		const qbool npm0 = tr.imageShaders[image->firstShaderIndex]->imgflags & IMG_NOPICMIP;
-
-		qbool mixed = qfalse;
-		for ( int s = 1; s < image->numShaders; ++s ) {
-			const shader_t* const shader = tr.imageShaders[image->firstShaderIndex + s];
-			const qbool nmmS = shader->imgflags & IMG_NOMIPMAP;
-			const qbool npmS = shader->imgflags & IMG_NOPICMIP;
-			if ( nmmS != nmm0 || npmS != npm0 ) {
-				mixed = qtrue;
-				break;
-			}
-		}
-
-		if ( !mixed ) {
+		const int mixedFlags = image->flags0 & image->flags1;
+		if ( ( mixedFlags & ( IMG_NOMIPMAP | IMG_NOPICMIP ) ) == 0 ) {
 			continue;
 		}
 
 		ri.Printf( PRINT_ALL, "^5%s:\n", image->name );
-		for ( int s = 0; s < image->numShaders; ++s ) {
-			const shader_t* const shader = tr.imageShaders[image->firstShaderIndex + s];
+		for ( int is = 0; is < ARRAY_LEN( tr.imageShaders ); ++is ) {
+			const int imageIndex = tr.imageShaders[is] & 0xFFFF;
+			if ( imageIndex != i ) {
+				continue;
+			}
+
+			const int s = (tr.imageShaders[is] >> 16) & 0xFFFF;
+			const shader_t* const shader = tr.shaders[s];
 			const qbool nmmS = shader->imgflags & IMG_NOMIPMAP;
 			const qbool npmS = shader->imgflags & IMG_NOPICMIP;
 			ri.Printf( PRINT_ALL, "%s %s %s\n",