From: divverent <divverent@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Wed, 23 May 2007 00:23:30 +0000 (+0000)
Subject: damn, committed the old version of my patch... this now is the REAL v_flipped
X-Git-Tag: xonotic-v0.1.0preview~3113
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=5ac666c6a9a74413b1fd526d041db275708b19dd;p=xonotic%2Fdarkplaces.git

damn, committed the old version of my patch... this now is the REAL v_flipped


git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@7343 d7cf8633-e32d-0410-b094-e92efae38249
---

diff --git a/gl_backend.c b/gl_backend.c
index 8b4dbdcb..4dbdc8ce 100644
--- a/gl_backend.c
+++ b/gl_backend.c
@@ -16,7 +16,7 @@ cvar_t gl_lockarrays = {0, "gl_lockarrays", "0", "enables use of glLockArraysEXT
 cvar_t gl_lockarrays_minimumvertices = {0, "gl_lockarrays_minimumvertices", "1", "minimum number of vertices required for use of glLockArraysEXT, setting this too low may reduce performance"};
 cvar_t gl_vbo = {0, "gl_vbo", "1", "make use of GL_ARB_vertex_buffer_object extension to store static geometry in video memory for faster rendering"};
 
-cvar_t v_flipped = {0, "v_flipped", "0", "mirror the screen (poor man's left handed mode"};
+cvar_t v_flipped = {0, "v_flipped", "0", "mirror the screen (poor man's left handed mode)"};
 qboolean v_flipped_state = false;
 
 int gl_maxdrawrangeelementsvertices;
@@ -270,10 +270,12 @@ void gl_backend_init(void)
 	R_RegisterModule("GL_Backend", gl_backend_start, gl_backend_shutdown, gl_backend_newmap);
 }
 
+void GL_SetMirrorState(qboolean state);
+
 void GL_SetupView_Orientation_Identity (void)
 {
 	backend_viewmatrix = identitymatrix;
-	v_flipped_state = false;
+	GL_SetMirrorState(false);
 	memset(&backend_modelmatrix, 0, sizeof(backend_modelmatrix));
 }
 
@@ -285,7 +287,7 @@ void GL_SetupView_Orientation_FromEntity(const matrix4x4_t *matrix)
 	Matrix4x4_ConcatRotate(&basematrix, 90, 0, 0, 1);
 	Matrix4x4_Concat(&backend_viewmatrix, &basematrix, &tempmatrix);
 
-	v_flipped_state = v_flipped.integer;
+	GL_SetMirrorState(v_flipped.integer);
 	if(v_flipped_state)
 	{
 		Matrix4x4_Transpose(&basematrix, &backend_viewmatrix);
@@ -544,7 +546,7 @@ void GL_Backend_ResetState(void)
 	gl_state.color4f[0] = gl_state.color4f[1] = gl_state.color4f[2] = gl_state.color4f[3] = 1;
 	gl_state.lockrange_first = 0;
 	gl_state.lockrange_count = 0;
-	gl_state.cullface = GL_FRONT; // quake is backwards, this culls back faces
+	gl_state.cullface = v_flipped_state ? GL_BACK : GL_FRONT; // quake is backwards, this culls back faces
 	gl_state.cullfaceenable = true;
 
 	CHECKGLERROR
@@ -678,6 +680,19 @@ void GL_DepthRange(float nearfrac, float farfrac)
 	}
 }
 
+void GL_SetMirrorState(qboolean state)
+{
+	if(!state != !v_flipped_state)
+	{
+		// change cull face mode!
+		if(gl_state.cullface == GL_BACK)
+			qglCullFace((gl_state.cullface = GL_FRONT));
+		else if(gl_state.cullface == GL_FRONT)
+			qglCullFace((gl_state.cullface = GL_BACK));
+	}
+	v_flipped_state = state;
+}
+
 void GL_CullFace(int state)
 {
 	CHECKGLERROR
diff --git a/gl_rmain.c b/gl_rmain.c
index a4f7e690..c233bc00 100644
--- a/gl_rmain.c
+++ b/gl_rmain.c
@@ -104,6 +104,8 @@ cvar_t gl_lightmaps = {0, "gl_lightmaps", "0", "draws only lightmaps, no texture
 cvar_t r_test = {0, "r_test", "0", "internal development use only, leave it alone (usually does nothing anyway)"};
 cvar_t r_batchmode = {0, "r_batchmode", "1", "selects method of rendering multiple surfaces with one driver call (values are 0, 1, 2, etc...)"};
 
+extern qboolean v_flipped_state;
+
 typedef struct r_glsl_bloomshader_s
 {
 	int program;
@@ -2952,6 +2954,16 @@ void R_DrawSprite(int blendfunc1, int blendfunc2, rtexture_t *texture, rtexture_
 
 	R_Mesh_Matrix(&identitymatrix);
 	GL_BlendFunc(blendfunc1, blendfunc2);
+
+	if(v_flipped_state)
+	{
+		scalex1 = -scalex1;
+		scalex2 = -scalex2;
+		GL_CullFace(GL_BACK);
+	}
+	else
+		GL_CullFace(GL_FRONT);
+
 	GL_DepthMask(false);
 	GL_DepthRange(0, depthshort ? 0.0625 : 1);
 	GL_DepthTest(!depthdisable);
diff --git a/model_sprite.c b/model_sprite.c
index 49c79338..623243d7 100644
--- a/model_sprite.c
+++ b/model_sprite.c
@@ -43,7 +43,7 @@ static void Mod_SpriteSetupTexture(texture_t *texture, skinframe_t *skinframe, q
 {
 	if (!skinframe)
 		skinframe = R_SkinFrame_LoadMissing();
-	texture->basematerialflags = MATERIALFLAG_WALL | MATERIALFLAG_NOCULLFACE;
+	texture->basematerialflags = MATERIALFLAG_WALL;
 	if (fullbright)
 		texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
 	if (additive)
diff --git a/r_sprites.c b/r_sprites.c
index 0683b739..ae19bdea 100644
--- a/r_sprites.c
+++ b/r_sprites.c
@@ -2,8 +2,6 @@
 #include "quakedef.h"
 #include "r_shadow.h"
 
-extern cvar_t v_flipped;
-
 void R_Model_Sprite_Draw_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
 {
 	int i;
@@ -66,12 +64,6 @@ void R_Model_Sprite_Draw_TransparentCallback(const entity_render_t *ent, const r
 		break;
 	}
 
-	if(v_flipped.integer)
-	{
-		left[0] = -left[0];
-		left[1] = -left[1];
-	}
-
 	R_Mesh_Matrix(&identitymatrix);
 
 	// LordHavoc: interpolated sprite rendering