Polymost NPOT texture patch from Nuke.YKT

git-svn-id: https://svn.eduke32.com/eduke32@7413 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
terminx 2019-03-19 17:08:43 +00:00
parent 25cd73d99a
commit 5e97fc5f51

View file

@ -62,7 +62,7 @@ int32_t r_enablepolymost2 = 0;
int32_t r_pogoDebug = 0;
int32_t r_usenewshading = 4;
int32_t r_usetileshades = 2;
int32_t r_npotwallmode = 0;
int32_t r_npotwallmode = 2;
static float gviewxrange;
static float ghoriz;
@ -72,7 +72,7 @@ float gcosang, gsinang, gcosang2, gsinang2;
float gchang, gshang, gctang, gstang, gvisibility;
float gtang = 0.f;
static vec3d_t xtex, ytex, otex;
static vec3d_t xtex, ytex, otex, xtex2, ytex2, otex2;
float fcosglobalang, fsinglobalang;
float fxdim, fydim, fydimen, fviewingrange;
@ -204,6 +204,12 @@ static GLint polymost1UseDetailMappingLoc = -1;
static float polymost1UseDetailMapping = 0.f;
static GLint polymost1UseGlowMappingLoc = -1;
static float polymost1UseGlowMapping = 0.f;
static GLint polymost1NPOTEmulationLoc = -1;
static float polymost1NPOTEmulation = 0.f;
static GLint polymost1NPOTEmulationFactorLoc = -1;
static float polymost1NPOTEmulationFactor = 1.f;
static GLint polymost1NPOTEmulationXOffsetLoc = -1;
static float polymost1NPOTEmulationXOffset = 0.f;
static GLint polymost1RotMatrixLoc = -1;
static float polymost1RotMatrix[16] = { 1.f, 0.f, 0.f, 0.f,
0.f, 1.f, 0.f, 0.f,
@ -621,6 +627,9 @@ static void polymost_setCurrentShaderProgram(uint32_t programID)
polymost1UseColorOnlyLoc = glGetUniformLocation(polymost1CurrentShaderProgramID, "u_useColorOnly");
polymost1UseDetailMappingLoc = glGetUniformLocation(polymost1CurrentShaderProgramID, "u_useDetailMapping");
polymost1UseGlowMappingLoc = glGetUniformLocation(polymost1CurrentShaderProgramID, "u_useGlowMapping");
polymost1NPOTEmulationLoc = glGetUniformLocation(polymost1CurrentShaderProgramID, "u_npotEmulation");
polymost1NPOTEmulationFactorLoc = glGetUniformLocation(polymost1CurrentShaderProgramID, "u_npotEmulationFactor");
polymost1NPOTEmulationXOffsetLoc = glGetUniformLocation(polymost1CurrentShaderProgramID, "u_npotEmulationXOffset");
polymost1RotMatrixLoc = glGetUniformLocation(polymost1CurrentShaderProgramID, "u_rotMatrix");
//set the uniforms to the current values
@ -636,6 +645,9 @@ static void polymost_setCurrentShaderProgram(uint32_t programID)
glUniform1f(polymost1UsePaletteLoc, polymost1UsePalette);
glUniform1f(polymost1UseDetailMappingLoc, polymost1UseDetailMapping);
glUniform1f(polymost1UseGlowMappingLoc, polymost1UseGlowMapping);
glUniform1f(polymost1NPOTEmulationLoc, polymost1NPOTEmulation);
glUniform1f(polymost1NPOTEmulationFactorLoc, polymost1NPOTEmulationFactor);
glUniform1f(polymost1NPOTEmulationXOffsetLoc, polymost1NPOTEmulationXOffset);
glUniformMatrix4fv(polymost1RotMatrixLoc, 1, false, polymost1RotMatrix);
}
@ -790,6 +802,19 @@ void polymost_useGlowMapping(char useGlowMapping)
}
}
void polymost_npotEmulation(char npotEmulation, float factor, float xOffset)
{
if (currentShaderProgramID == polymost1CurrentShaderProgramID)
{
polymost1NPOTEmulation = npotEmulation;
glUniform1f(polymost1NPOTEmulationLoc, polymost1NPOTEmulation);
polymost1NPOTEmulationFactor = factor;
glUniform1f(polymost1NPOTEmulationFactorLoc, polymost1NPOTEmulationFactor);
polymost1NPOTEmulationXOffset = xOffset;
glUniform1f(polymost1NPOTEmulationXOffsetLoc, polymost1NPOTEmulationXOffset);
}
}
void polymost_activeTexture(GLenum texture)
{
currentActiveTexture = texture;
@ -1103,6 +1128,9 @@ void polymost_glinit()
\n\
uniform float u_useColorOnly;\n\
uniform float u_usePalette;\n\
uniform float u_npotEmulation;\n\
uniform float u_npotEmulationFactor;\n\
uniform float u_npotEmulationXOffset;\n\
\n\
varying vec4 v_color;\n\
varying float v_distance;\n\
@ -1118,10 +1146,16 @@ void polymost_glinit()
\n\
void main()\n\
{\n\
float coordY = mix(gl_TexCoord[0].y,gl_TexCoord[0].x,u_usePalette);\n\
float coordX = mix(gl_TexCoord[0].x,gl_TexCoord[0].y,u_usePalette);\n\
float period = floor(coordY/u_npotEmulationFactor);\n\
coordX += u_npotEmulationXOffset*floor(mod(coordY,u_npotEmulationFactor));\n\
coordY = period+mod(coordY,u_npotEmulationFactor);\n\
vec2 newCoord = mix(gl_TexCoord[0].xy,mix(vec2(coordX,coordY),vec2(coordY,coordX),u_usePalette),u_npotEmulation);\n\
//GLSL 130+ could alternatively use texture2DGrad()\n\
vec2 transitionBlend = fwidth(floor(gl_TexCoord[0].xy));\n\
vec2 transitionBlend = fwidth(floor(newCoord.xy));\n\
transitionBlend = fwidth(transitionBlend)+transitionBlend;\n\
vec2 texCoord = mix(fract(gl_TexCoord[0].xy), abs(c_one-mod(gl_TexCoord[0].xy+c_one, c_two)), transitionBlend);\n\
vec2 texCoord = mix(fract(newCoord.xy), abs(c_one-mod(newCoord.xy+c_one, c_two)), transitionBlend);\n\
texCoord = clamp(u_texturePosSize.zw*texCoord, u_halfTexelSize, u_texturePosSize.zw-u_halfTexelSize);\n\
vec4 color = texture2D(s_texture, u_texturePosSize.xy+texCoord);\n\
\n\
@ -1178,6 +1212,9 @@ void polymost_glinit()
\n\
uniform float u_useColorOnly;\n\
uniform float u_usePalette;\n\
uniform float u_npotEmulation;\n\
uniform float u_npotEmulationFactor;\n\
uniform float u_npotEmulationXOffset;\n\
\n\
uniform float u_useDetailMapping;\n\
uniform float u_useGlowMapping;\n\
@ -1196,10 +1233,16 @@ void polymost_glinit()
\n\
void main()\n\
{\n\
float coordY = mix(gl_TexCoord[0].y,gl_TexCoord[0].x,u_usePalette);\n\
float coordX = mix(gl_TexCoord[0].x,gl_TexCoord[0].y,u_usePalette);\n\
float period = floor(coordY/u_npotEmulationFactor);\n\
coordX += u_npotEmulationXOffset*floor(mod(coordY,u_npotEmulationFactor));\n\
coordY = period+mod(coordY,u_npotEmulationFactor);\n\
vec2 newCoord = mix(gl_TexCoord[0].xy,mix(vec2(coordX,coordY),vec2(coordY,coordX),u_usePalette),u_npotEmulation);\n\
//GLSL 130+ could alternatively use texture2DGrad()\n\
vec2 transitionBlend = fwidth(floor(gl_TexCoord[0].xy));\n\
vec2 transitionBlend = fwidth(floor(newCoord.xy));\n\
transitionBlend = fwidth(transitionBlend)+transitionBlend;\n\
vec2 texCoord = mix(fract(gl_TexCoord[0].xy), abs(c_one-mod(gl_TexCoord[0].xy+c_one, c_two)), transitionBlend);\n\
vec2 texCoord = mix(fract(newCoord.xy), abs(c_one-mod(newCoord.xy+c_one, c_two)), transitionBlend);\n\
texCoord = clamp(u_texturePosSize.zw*texCoord, u_halfTexelSize, u_texturePosSize.zw-u_halfTexelSize);\n\
vec4 color = texture2D(s_texture, u_texturePosSize.xy+texCoord);\n\
\n\
@ -3263,6 +3306,24 @@ static void polymost_drawpoly(vec2f_t const * const dpxy, int32_t const n, int32
glActiveTexture(GL_TEXTURE0);
}
}
if (glinfo.texnpot && r_npotwallmode == 2 && (method & DAMETH_WALL) != 0)
{
int32_t size = tilesiz[globalpicnum].y;
int32_t size2;
for (size2 = 1; size2 < size; size2 += size2) {}
if (size == size2)
polymost_npotEmulation(false, 1.f, 0.f);
else
{
float xOffset = 1.f / tilesiz[globalpicnum].x;
polymost_npotEmulation(true, (1.f*size2) / size, xOffset);
}
}
else
{
polymost_npotEmulation(false, 1.f, 0.f);
}
#endif
vec2f_t hacksc = { 1.f, 1.f };
@ -3567,6 +3628,7 @@ do
polymost_useDetailMapping(false);
polymost_useGlowMapping(false);
polymost_npotEmulation(false, 1.f, 0.f);
#endif
if (pth->hicr)
{
@ -4820,7 +4882,7 @@ static void calc_ypanning(int32_t refposz, float ryp0, float ryp1,
t *= (float)tilesiz[globalpicnum].y / i;
i = tilesiz[globalpicnum].y;
}
else if (dopancor)
else if (!(glinfo.texnpot && r_npotwallmode == 2) && dopancor)
{
// Carry out panning "correction" to make it look like classic in some
// cases, but failing in the general case.
@ -4938,13 +5000,20 @@ static void polymost_drawalls(int32_t const bunch)
getzsofslope(sectnum,/*Blrintf(nx1)*/(int)n1.x,/*Blrintf(ny1)*/(int)n1.y,&cz,&fz);
float const cy1 = ((float)(cz-globalposz))*ryp1 + ghoriz, fy1 = ((float)(fz-globalposz))*ryp1 + ghoriz;
// Floor
xtex2.d = (ryp0 - ryp1)*gxyaspect / (x0 - x1);
ytex2.d = 0;
otex2.d = ryp0 * gxyaspect - xtex2.d*x0;
xtex2.u = ytex2.u = otex2.u = 0;
xtex2.v = ytex2.v = otex2.v = 0;
#ifdef YAX_ENABLE
yax_holencf[YAX_FLOOR] = 0;
yax_drawcf = YAX_FLOOR;
#endif
// Floor
globalpicnum = sec->floorpicnum;
globalshade = sec->floorshade;
globalpal = sec->floorpal;
@ -6436,11 +6505,11 @@ void polymost_drawmaskwall(int32_t damaskwallcnt)
// | /
// fsy1/
vec2f_t dpxy[4] = { { x0, csy[1] }, { x1, csy[3] }, { x1, fsy[3] }, { x0, fsy[1] } };
vec2f_t dpxy[8] = { { x0, csy[1] }, { x1, csy[3] }, { x1, fsy[3] }, { x0, fsy[1] } };
//Clip to (x0,csy[0])-(x1,csy[2])
vec2f_t dp2[4];
vec2f_t dp2[8];
int n2 = 0;
t1 = -((dpxy[0].x - x0) * (csy[2] - csy[0]) - (dpxy[0].y - csy[0]) * (x1 - x0));
@ -8732,7 +8801,7 @@ void polymost_initosdfuncs(void)
{ "r_swapinterval","sets the GL swap interval (VSync)",(void *) &vsync, CVAR_INT|CVAR_FUNCPTR, -1, 1 },
{
"r_npotwallmode", "enable/disable emulation of walls with non-power-of-two height textures (Polymost, r_hightile 0)",
(void *) &r_npotwallmode, CVAR_BOOL, 0, 1
(void *) &r_npotwallmode, CVAR_INT, 0, 2
},
{ "r_anisotropy", "changes the OpenGL texture anisotropy setting", (void *) &glanisotropy, CVAR_INT|CVAR_FUNCPTR, 0, 16 },
{ "r_texturemaxsize","changes the maximum OpenGL texture size limit",(void *) &gltexmaxsize, CVAR_INT | CVAR_NOSAVE, 0, 4096 },