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Wireframe mode for OpenGL

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This commit is contained in:
Hannu Hanhi 2021-10-30 03:53:46 +03:00
parent 2d8230cb27
commit 2fb1c5f1ef
4 changed files with 34 additions and 0 deletions
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1
src/hardware/hw_defs.h
View file

@ -295,6 +295,7 @@ enum hwdsetspecialstate
HWD_SET_SHADERS,
HWD_SET_TEXTUREFILTERMODE,
HWD_SET_TEXTUREANISOTROPICMODE,
HWD_SET_WIREFRAME,
HWD_NUMSTATE
};

24
src/hardware/hw_main.c
View file

@ -178,6 +178,11 @@ static boolean HWR_UseShader(void)
return (cv_glshaders.value && gl_shadersavailable);
}
static boolean HWR_IsWireframeMode(void)
{
return (cv_glwireframe.value && cv_debug);
}
void HWR_Lighting(FSurfaceInfo *Surface, INT32 light_level, extracolormap_t *colormap)
{
RGBA_t poly_color, tint_color, fade_color;
@ -5642,6 +5647,9 @@ void HWR_BuildSkyDome(void)
static void HWR_DrawSkyBackground(player_t *player)
{
if (HWR_IsWireframeMode())
return;
HWD.pfnSetBlend(PF_Translucent|PF_NoDepthTest|PF_Modulated);
if (cv_glskydome.value)
@ -5994,6 +6002,9 @@ void HWR_RenderSkyboxView(INT32 viewnumber, player_t *player)
// Reset the shader state.
HWR_SetShaderState();
if (HWR_IsWireframeMode())
HWD.pfnSetSpecialState(HWD_SET_WIREFRAME, 1);
validcount++;
if (cv_glbatching.value)
@ -6056,6 +6067,9 @@ void HWR_RenderSkyboxView(INT32 viewnumber, player_t *player)
HWR_CreateDrawNodes();
}
if (HWR_IsWireframeMode())
HWD.pfnSetSpecialState(HWD_SET_WIREFRAME, 0);
HWD.pfnSetTransform(NULL);
HWD.pfnUnSetShader();
@ -6208,6 +6222,9 @@ void HWR_RenderPlayerView(INT32 viewnumber, player_t *player)
// Reset the shader state.
HWR_SetShaderState();
if (HWR_IsWireframeMode())
HWD.pfnSetSpecialState(HWD_SET_WIREFRAME, 1);
ps_numbspcalls = 0;
ps_numpolyobjects = 0;
ps_bsptime = I_GetPreciseTime();
@ -6284,6 +6301,9 @@ void HWR_RenderPlayerView(INT32 viewnumber, player_t *player)
HWR_CreateDrawNodes();
}
if (HWR_IsWireframeMode())
HWD.pfnSetSpecialState(HWD_SET_WIREFRAME, 0);
HWD.pfnSetTransform(NULL);
HWD.pfnUnSetShader();
@ -6361,6 +6381,8 @@ consvar_t cv_glsolvetjoin = CVAR_INIT ("gr_solvetjoin", "On", 0, CV_OnOff, NULL)
consvar_t cv_glbatching = CVAR_INIT ("gr_batching", "On", 0, CV_OnOff, NULL);
consvar_t cv_glwireframe = CVAR_INIT ("gr_wireframe", "Off", 0, CV_OnOff, NULL);
static void CV_glfiltermode_OnChange(void)
{
if (rendermode == render_opengl)
@ -6401,6 +6423,8 @@ void HWR_AddCommands(void)
CV_RegisterVar(&cv_glbatching);
CV_RegisterVar(&cv_glwireframe);
#ifndef NEWCLIP
CV_RegisterVar(&cv_glclipwalls);
#endif

2
src/hardware/hw_main.h
View file

@ -106,6 +106,8 @@ extern consvar_t cv_glslopecontrast;
extern consvar_t cv_glbatching;
extern consvar_t cv_glwireframe;
extern float gl_viewwidth, gl_viewheight, gl_baseviewwindowy;
extern float gl_viewwindowx, gl_basewindowcentery;

7
src/hardware/r_opengl/r_opengl.c
View file

@ -301,6 +301,8 @@ typedef void (APIENTRY * PFNglDisable) (GLenum cap);
static PFNglDisable pglDisable;
typedef void (APIENTRY * PFNglGetFloatv) (GLenum pname, GLfloat *params);
static PFNglGetFloatv pglGetFloatv;
typedef void (APIENTRY * PFNglPolygonMode) (GLenum, GLenum);
static PFNglPolygonMode pglPolygonMode;
/* Depth Buffer */
typedef void (APIENTRY * PFNglClearDepth) (GLclampd depth);
@ -475,6 +477,7 @@ boolean SetupGLfunc(void)
GETOPENGLFUNC(pglGetFloatv, glGetFloatv)
GETOPENGLFUNC(pglGetIntegerv, glGetIntegerv)
GETOPENGLFUNC(pglGetString, glGetString)
GETOPENGLFUNC(pglPolygonMode, glPolygonMode)
GETOPENGLFUNC(pglClearDepth, glClearDepth)
GETOPENGLFUNC(pglDepthFunc, glDepthFunc)
@ -2467,6 +2470,10 @@ EXPORT void HWRAPI(SetSpecialState) (hwdspecialstate_t IdState, INT32 Value)
Flush(); //??? if we want to change filter mode by texture, remove this
break;
case HWD_SET_WIREFRAME:
pglPolygonMode(GL_FRONT_AND_BACK, Value ? GL_LINE : GL_FILL);
break;
default:
break;
}