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Separate out polymost1Frag and polymost1Vert shaders from polymost.cpp and add rules for building in the GNUmakefile.

Browse source 
Additionally, git ignore the shader's generated headers folder.

git-svn-id: https://svn.eduke32.com/eduke32@7782 1a8010ca-5511-0410-912e-c29ae57300e0

# Conflicts:
#	.gitignore
#	source/build/src/polymost.cpp
This commit is contained in:
pogokeen 2019-07-12 08:44:36 +00:00 committed by Christoph Oelckers
parent fe36034e43
commit f6993940e5
6 changed files with 193 additions and 253 deletions
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2
.gitignore vendored
View file

@ -54,6 +54,8 @@ project.xcworkspace/
.DS_Store .DS_Store
._* ._*
/source/build/src/generated/
Platform/Windows/Build Platform/Windows/Build
Platform/Windows/Win32 Platform/Windows/Win32
Platform/Windows/x64 Platform/Windows/x64

6
Common.mak
View file

@ -126,6 +126,9 @@ endef
define RMDIR define RMDIR
rm -rf $(filter-out / *,$1) rm -rf $(filter-out / *,$1)
endef endef
define CAT
cat $1
endef
ifeq (0,$(HAVE_SH)) ifeq (0,$(HAVE_SH))
DONT_FAIL := & rem DONT_FAIL := & rem
@ -142,6 +145,9 @@ ifeq (0,$(HAVE_SH))
define RMDIR define RMDIR
rmdir /s /q $(subst /,\,$(filter-out / *,$1)) $(DONT_PRINT_STDERR) $(DONT_FAIL) rmdir /s /q $(subst /,\,$(filter-out / *,$1)) $(DONT_PRINT_STDERR) $(DONT_FAIL)
endef endef
define CAT
type $1
endef
# if, printf, exit, and ; are unavailable without sh # if, printf, exit, and ; are unavailable without sh
PRETTY_OUTPUT := 0 PRETTY_OUTPUT := 0

9
GNUmakefile
View file

@ -218,6 +218,8 @@ engine_objs := \
2d.cpp \ 2d.cpp \
hash.cpp \ hash.cpp \
palette.cpp \ palette.cpp \
polymost1Frag.glsl \
polymost1Vert.glsl \
polymost.cpp \ polymost.cpp \
texcache.cpp \ texcache.cpp \
dxtfilter.cpp \ dxtfilter.cpp \
@ -1010,6 +1012,13 @@ $$($1_obj)/%.$$o: $$($1_obj)/%.c
$$(COMPILE_STATUS) $$(COMPILE_STATUS)
$$(RECIPE_IF) $$(COMPILER_C) $$($1_cflags) -c $$< -o $$@ $$(RECIPE_RESULT_COMPILE) $$(RECIPE_IF) $$(COMPILER_C) $$($1_cflags) -c $$< -o $$@ $$(RECIPE_RESULT_COMPILE)
$$($1_obj)/%.$$o: $$($1_src)/%.glsl | $$($1_src)/generated
echo "Creating header from "$$<
echo "char const *$$(basename $$(<F)) = R\"shader(" > $$(<D)/generated/$$(<F).h
$$(CAT) $$< >> $$(<D)/generated/$$(<F).h
echo ")shader\";" >> $$(<D)/generated/$$(<F).h
echo " " | $$(COMPILER_CXX) $$($1_cflags) -x c++ -c - -o $$@
## Cosmetic stuff ## Cosmetic stuff
$$($1_obj)/%.$$o: $$($1_rsrc)/%.rc | $$($1_obj) $$($1_obj)/%.$$o: $$($1_rsrc)/%.rc | $$($1_obj)

280
source/build/src/polymost.cpp
View file

@ -385,7 +385,7 @@ static void calcmat(vec3f_t a0, const vec2f_t *offset, float f, float mat[16], i
mat[14] = (mat[14] + a0.y*mat[2]) + (a0.z*mat[6] + a0.x*mat[10]); mat[14] = (mat[14] + a0.y*mat[2]) + (a0.z*mat[6] + a0.x*mat[10]);
} }
static GLuint polymost2_compileShader(GLenum shaderType, const char* const source) static GLuint polymost2_compileShader(GLenum shaderType, const char* const source, int length)
{ {
GLuint shaderID = glCreateShader(shaderType); GLuint shaderID = glCreateShader(shaderType);
if (shaderID == 0) if (shaderID == 0)
@ -393,11 +393,10 @@ static GLuint polymost2_compileShader(GLenum shaderType, const char* const sourc
return 0; return 0;
} }
const char* const sources[1] = {source};
glShaderSource(shaderID, glShaderSource(shaderID,
1, 1,
sources, &source,
NULL); &length);
glCompileShader(shaderID); glCompileShader(shaderID);
GLint compileStatus; GLint compileStatus;
@ -848,8 +847,8 @@ void polymost_glinit()
}\n"; }\n";
polymost2BasicShaderProgramID = glCreateProgram(); polymost2BasicShaderProgramID = glCreateProgram();
GLuint polymost2BasicVertexShaderID = polymost2_compileShader(GL_VERTEX_SHADER, POLYMOST2_BASIC_VERTEX_SHADER_CODE); GLuint polymost2BasicVertexShaderID = polymost2_compileShader(GL_VERTEX_SHADER, POLYMOST2_BASIC_VERTEX_SHADER_CODE, 0);
GLuint polymost2BasicFragmentShaderID = polymost2_compileShader(GL_FRAGMENT_SHADER, POLYMOST2_BASIC_FRAGMENT_SHADER_CODE); GLuint polymost2BasicFragmentShaderID = polymost2_compileShader(GL_FRAGMENT_SHADER, POLYMOST2_BASIC_FRAGMENT_SHADER_CODE, 0);
glBindAttribLocation(polymost2BasicShaderProgramID, 0, "i_vertPos"); glBindAttribLocation(polymost2BasicShaderProgramID, 0, "i_vertPos");
glBindAttribLocation(polymost2BasicShaderProgramID, 1, "i_texCoord"); glBindAttribLocation(polymost2BasicShaderProgramID, 1, "i_texCoord");
glAttachShader(polymost2BasicShaderProgramID, polymost2BasicVertexShaderID); glAttachShader(polymost2BasicShaderProgramID, polymost2BasicVertexShaderID);
@ -868,259 +867,34 @@ void polymost_glinit()
fogRangeLoc = glGetUniformLocation(polymost2BasicShaderProgramID, "u_fogRange"); fogRangeLoc = glGetUniformLocation(polymost2BasicShaderProgramID, "u_fogRange");
fogColorLoc = glGetUniformLocation(polymost2BasicShaderProgramID, "u_fogColor"); fogColorLoc = glGetUniformLocation(polymost2BasicShaderProgramID, "u_fogColor");
const char* const POLYMOST1_BASIC_VERTEX_SHADER_CODE = #include "generated/polymost1Vert.glsl.h"
"#version 110\n\ #include "generated/polymost1Frag.glsl.h"
\n\
varying vec4 v_color;\n\
varying float v_distance;\n\
\n\
//u_texturePosSize is the texture position & size packaged into a single vec4 as {pos.x, pos.y, size.x, size.y}\n\
uniform vec4 u_texturePosSize;\n\
uniform float u_usePalette;\n\
uniform mat4 u_rotMatrix;\n\
\n\
const float c_zero = 0.0;\n\
const float c_one = 1.0;\n\
\n\
void main()\n\
{\n\
vec4 vertex = u_rotMatrix * gl_Vertex;\n\
vec4 eyeCoordPosition = gl_ModelViewMatrix * vertex;\n\
gl_Position = gl_ModelViewProjectionMatrix * vertex;\n\
\n\
eyeCoordPosition.xyz /= eyeCoordPosition.w;\n\
\n\
gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;\n\
gl_TexCoord[0] = mix(gl_TexCoord[0].xyzw, gl_TexCoord[0].yxzw, u_usePalette);\n\
\n\
gl_TexCoord[3] = gl_TextureMatrix[3] * gl_MultiTexCoord3;\n\
gl_TexCoord[4] = gl_TextureMatrix[4] * gl_MultiTexCoord4;\n\
\n\
gl_FogFragCoord = abs(eyeCoordPosition.z);\n\
//gl_FogFragCoord = clamp((gl_Fog.end-abs(eyeCoordPosition.z))*gl_Fog.scale, c_zero, c_one);\n\
\n\
v_color = gl_Color;\n\
v_distance = gl_Vertex.z;\n\
}\n";
const char* const POLYMOST1_BASIC_FRAGMENT_SHADER_CODE =
"#version 110\n\
#extension ARB_shader_texture_lod : enable\n\
\n\
//s_texture points to an indexed color texture\n\
uniform sampler2D s_texture;\n\
//s_palswap is the palette swap texture where u is the color index and v is the shade\n\
uniform sampler2D s_palswap;\n\
//s_palette is the base palette texture where u is the color index\n\
uniform sampler2D s_palette;\n\
\n\
//u_texturePosSize is the texture position & size packaged into a single vec4 as {pos.x, pos.y, size.x, size.y}\n\
uniform vec4 u_texturePosSize;\n\
uniform vec2 u_halfTexelSize;\n\
uniform vec2 u_palswapPos;\n\
uniform vec2 u_palswapSize;\n\
\n\
uniform float u_shade;\n\
uniform float u_numShades;\n\
uniform float u_visFactor;\n\
uniform float u_fogEnabled;\n\
\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\
uniform float u_brightness;\n\
uniform float u_shadeInterpolate;\n\
\n\
varying vec4 v_color;\n\
varying float v_distance;\n\
\n\
const float c_basepalScale = 255.0/256.0;\n\
const float c_basepalOffset = 0.5/256.0;\n\
\n\
const float c_zero = 0.0;\n\
const float c_one = 1.0;\n\
const float c_two = 2.0;\n\
const vec4 c_vec4_one = vec4(c_one);\n\
const float c_wrapThreshold = 0.9;\n\
\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\
#ifdef GL_ARB_shader_texture_lod\n\
vec2 texCoord = fract(newCoord.xy);\n\
texCoord = clamp(u_texturePosSize.zw*texCoord, u_halfTexelSize, u_texturePosSize.zw-u_halfTexelSize);\n\
vec4 color = texture2DGradARB(s_texture, u_texturePosSize.xy+texCoord, dFdx(texCoord), dFdy(texCoord));\n\
#else\n\
vec2 transitionBlend = fwidth(floor(newCoord.xy));\n\
transitionBlend = fwidth(transitionBlend)+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\
#endif\n\
\n\
float shade = clamp((u_shade+max(u_visFactor*v_distance-0.5*u_shadeInterpolate,c_zero)), c_zero, u_numShades-c_one);\n\
float shadeFrac = mod(shade, c_one);\n\
float colorIndex = texture2D(s_palswap, u_palswapPos+u_palswapSize*vec2(color.r, floor(shade)/u_numShades)).r;\n\
colorIndex = c_basepalOffset + c_basepalScale*colorIndex;\n\
vec4 palettedColor = texture2D(s_palette, vec2(colorIndex, c_zero));\n\
colorIndex = texture2D(s_palswap, u_palswapPos+u_palswapSize*vec2(color.r, (floor(shade)+c_one)/u_numShades)).r;\n\
colorIndex = c_basepalOffset + c_basepalScale*colorIndex;\n\
vec4 palettedColorNext = texture2D(s_palette, vec2(colorIndex, c_zero));\n\
palettedColor.rgb = mix(palettedColor.rgb, palettedColorNext.rgb, shadeFrac*u_shadeInterpolate);\n\
float fullbright = mix(u_usePalette*palettedColor.a, c_zero, u_useColorOnly);\n\
palettedColor.a = c_one-floor(color.r);\n\
color = mix(color, palettedColor, u_usePalette);\n\
\n\
color = mix(color, c_vec4_one, u_useColorOnly);\n\
\n\
// DEBUG \n\
//color = texture2D(s_palswap, gl_TexCoord[0].xy);\n\
//color = texture2D(s_palette, gl_TexCoord[0].xy);\n\
//color = texture2D(s_texture, gl_TexCoord[0].yx);\n\
\n\
color.rgb = mix(v_color.rgb*color.rgb, color.rgb, fullbright);\n\
\n\
float fogEnabled = mix(u_fogEnabled, c_zero, u_usePalette);\n\
fullbright = max(c_one-fogEnabled, fullbright);\n\
float fogFactor = clamp((gl_Fog.end-gl_FogFragCoord)*gl_Fog.scale, fullbright, c_one);\n\
//float fogFactor = clamp(gl_FogFragCoord, fullbright, c_one);\n\
color.rgb = mix(gl_Fog.color.rgb, color.rgb, fogFactor);\n\
\n\
color.a *= v_color.a;\n\
\n\
color.rgb = pow(color.rgb, vec3(u_brightness));\n\
\n\
gl_FragData[0] = color;\n\
}\n";
const char* const POLYMOST1_EXTENDED_FRAGMENT_SHADER_CODE =
"#version 110\n\
#extension ARB_shader_texture_lod : enable\n\
\n\
//s_texture points to an indexed color texture\n\
uniform sampler2D s_texture;\n\
//s_palswap is the palette swap texture where u is the color index and v is the shade\n\
uniform sampler2D s_palswap;\n\
//s_palette is the base palette texture where u is the color index\n\
uniform sampler2D s_palette;\n\
\n\
uniform sampler2D s_detail;\n\
uniform sampler2D s_glow;\n\
\n\
//u_texturePosSize is the texture position & size packaged into a single vec4 as {pos.x, pos.y, size.x, size.y}\n\
uniform vec4 u_texturePosSize;\n\
uniform vec2 u_halfTexelSize;\n\
uniform vec2 u_palswapPos;\n\
uniform vec2 u_palswapSize;\n\
\n\
uniform float u_shade;\n\
uniform float u_numShades;\n\
uniform float u_visFactor;\n\
uniform float u_fogEnabled;\n\
\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\
uniform float u_brightness;\n\
uniform float u_shadeInterpolate;\n\
\n\
uniform float u_useDetailMapping;\n\
uniform float u_useGlowMapping;\n\
\n\
varying vec4 v_color;\n\
varying float v_distance;\n\
\n\
const float c_basepalScale = 255.0/256.0;\n\
const float c_basepalOffset = 0.5/256.0;\n\
\n\
const float c_zero = 0.0;\n\
const float c_one = 1.0;\n\
const float c_two = 2.0;\n\
const vec4 c_vec4_one = vec4(c_one);\n\
const float c_wrapThreshold = 0.9;\n\
\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\
#ifdef GL_ARB_shader_texture_lod\n\
vec2 texCoord = fract(newCoord.xy);\n\
texCoord = clamp(u_texturePosSize.zw*texCoord, u_halfTexelSize, u_texturePosSize.zw-u_halfTexelSize);\n\
vec4 color = texture2DGradARB(s_texture, u_texturePosSize.xy+texCoord, dFdx(texCoord), dFdy(texCoord));\n\
#else\n\
vec2 transitionBlend = fwidth(floor(newCoord.xy));\n\
transitionBlend = fwidth(transitionBlend)+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\
#endif\n\
\n\
float shade = clamp((u_shade+max(u_visFactor*v_distance-0.5*u_shadeInterpolate,c_zero)), c_zero, u_numShades-c_one);\n\
float shadeFrac = mod(shade, c_one);\n\
float colorIndex = texture2D(s_palswap, u_palswapPos+u_palswapSize*vec2(color.r, floor(shade)/u_numShades)).r;\n\
colorIndex = c_basepalOffset + c_basepalScale*colorIndex;\n\
vec4 palettedColor = texture2D(s_palette, vec2(colorIndex, c_zero));\n\
colorIndex = texture2D(s_palswap, u_palswapPos+u_palswapSize*vec2(color.r, (floor(shade)+c_one)/u_numShades)).r;\n\
colorIndex = c_basepalOffset + c_basepalScale*colorIndex;\n\
vec4 palettedColorNext = texture2D(s_palette, vec2(colorIndex, c_zero));\n\
palettedColor.rgb = mix(palettedColor.rgb, palettedColorNext.rgb, shadeFrac*u_shadeInterpolate);\n\
float fullbright = mix(u_usePalette*palettedColor.a, c_zero, u_useColorOnly);\n\
palettedColor.a = c_one-floor(color.r);\n\
color = mix(color, palettedColor, u_usePalette);\n\
\n\
vec4 detailColor = texture2D(s_detail, newCoord);\n\
detailColor = mix(c_vec4_one, 2.0*detailColor, u_useDetailMapping*detailColor.a);\n\
color.rgb *= detailColor.rgb;\n\
\n\
color = mix(color, c_vec4_one, u_useColorOnly);\n\
\n\
// DEBUG \n\
//color = texture2D(s_palswap, gl_TexCoord[0].xy);\n\
//color = texture2D(s_palette, gl_TexCoord[0].xy);\n\
//color = texture2D(s_texture, gl_TexCoord[0].yx);\n\
\n\
color.rgb = mix(v_color.rgb*color.rgb, color.rgb, fullbright);\n\
\n\
float fogEnabled = mix(u_fogEnabled, c_zero, u_usePalette);\n\
fullbright = max(c_one-fogEnabled, fullbright);\n\
float fogFactor = clamp((gl_Fog.end-gl_FogFragCoord)*gl_Fog.scale, fullbright, c_one);\n\
//float fogFactor = clamp(gl_FogFragCoord, fullbright, c_one);\n\
color.rgb = mix(gl_Fog.color.rgb, color.rgb, fogFactor);\n\
\n\
vec4 glowColor = texture2D(s_glow, newCoord);\n\
color.rgb = mix(color.rgb, glowColor.rgb, u_useGlowMapping*glowColor.a*(c_one-u_useColorOnly));\n\
\n\
color.a *= v_color.a;\n\
\n\
color.rgb = pow(color.rgb, vec3(u_brightness));\n\
\n\
gl_FragData[0] = color;\n\
}\n";
polymost1BasicShaderProgramID = glCreateProgram();
GLuint polymost1BasicVertexShaderID = polymost2_compileShader(GL_VERTEX_SHADER, POLYMOST1_BASIC_VERTEX_SHADER_CODE);
GLuint polymost1BasicFragmentShaderID = polymost2_compileShader(GL_FRAGMENT_SHADER, POLYMOST1_BASIC_FRAGMENT_SHADER_CODE);
glAttachShader(polymost1BasicShaderProgramID, polymost1BasicVertexShaderID);
glAttachShader(polymost1BasicShaderProgramID, polymost1BasicFragmentShaderID);
glLinkProgram(polymost1BasicShaderProgramID);
polymost1ExtendedShaderProgramID = glCreateProgram(); polymost1ExtendedShaderProgramID = glCreateProgram();
GLuint polymost1ExtendedFragmentShaderID = polymost2_compileShader(GL_FRAGMENT_SHADER, POLYMOST1_EXTENDED_FRAGMENT_SHADER_CODE); GLuint polymost1BasicVertexShaderID = polymost2_compileShader(GL_VERTEX_SHADER, polymost1Vert, 0);
GLuint polymost1ExtendedFragmentShaderID = polymost2_compileShader(GL_FRAGMENT_SHADER, polymost1Frag, 0);
glAttachShader(polymost1ExtendedShaderProgramID, polymost1BasicVertexShaderID); glAttachShader(polymost1ExtendedShaderProgramID, polymost1BasicVertexShaderID);
glAttachShader(polymost1ExtendedShaderProgramID, polymost1ExtendedFragmentShaderID); glAttachShader(polymost1ExtendedShaderProgramID, polymost1ExtendedFragmentShaderID);
glLinkProgram(polymost1ExtendedShaderProgramID); glLinkProgram(polymost1ExtendedShaderProgramID);
int polymost1BasicFragLen = strlen(polymost1Frag);
char* polymost1BasicFrag = (char*) malloc(polymost1BasicFragLen);
memcpy(polymost1BasicFrag, polymost1Frag, polymost1BasicFragLen);
char* extDefineSubstr = strstr(polymost1BasicFrag, " #define POLYMOST1_EXTENDED");
if (extDefineSubstr)
{
//Disable extensions for basic fragment shader
extDefineSubstr[0] = '/';
extDefineSubstr[1] = '/';
}
polymost1BasicShaderProgramID = glCreateProgram();
GLuint polymost1BasicFragmentShaderID = polymost2_compileShader(GL_FRAGMENT_SHADER, polymost1BasicFrag, polymost1BasicFragLen);
glAttachShader(polymost1BasicShaderProgramID, polymost1BasicVertexShaderID);
glAttachShader(polymost1BasicShaderProgramID, polymost1BasicFragmentShaderID);
glLinkProgram(polymost1BasicShaderProgramID);
free(polymost1BasicFrag);
polymost1BasicFrag = 0;
// set defaults // set defaults
polymost_setCurrentShaderProgram(polymost1ExtendedShaderProgramID); polymost_setCurrentShaderProgram(polymost1ExtendedShaderProgramID);
glUniform1i(polymost1TexSamplerLoc, 0); glUniform1i(polymost1TexSamplerLoc, 0);

116
source/build/src/polymost1Frag.glsl Normal file
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@ -0,0 +1,116 @@
#version 110
#extension ARB_shader_texture_lod : enable
//include an additional space here so that we can programmatically search for and disable this preprocessor definition easily
#define POLYMOST1_EXTENDED
//s_texture points to an indexed color texture
uniform sampler2D s_texture;
//s_palswap is the palette swap texture where u is the color index and v is the shade
uniform sampler2D s_palswap;
//s_palette is the base palette texture where u is the color index
uniform sampler2D s_palette;
#ifdef POLYMOST1_EXTENDED
uniform sampler2D s_detail;
uniform sampler2D s_glow;
#endif
//u_texturePosSize is the texture position & size packaged into a single vec4 as {pos.x, pos.y, size.x, size.y}
uniform vec4 u_texturePosSize;
uniform vec2 u_halfTexelSize;
uniform vec2 u_palswapPos;
uniform vec2 u_palswapSize;
uniform float u_shade;
uniform float u_numShades;
uniform float u_visFactor;
uniform float u_fogEnabled;
uniform float u_useColorOnly;
uniform float u_usePalette;
uniform float u_npotEmulation;
uniform float u_npotEmulationFactor;
uniform float u_npotEmulationXOffset;
uniform float u_shadeInterpolate;
#ifdef POLYMOST1_EXTENDED
uniform float u_useDetailMapping;
uniform float u_useGlowMapping;
#endif
varying vec4 v_color;
varying float v_distance;
const float c_basepalScale = 255.0/256.0;
const float c_basepalOffset = 0.5/256.0;
const float c_zero = 0.0;
const float c_one = 1.0;
const float c_two = 2.0;
const vec4 c_vec4_one = vec4(c_one);
const float c_wrapThreshold = 0.9;
void main()
{
float coordY = mix(gl_TexCoord[0].y,gl_TexCoord[0].x,u_usePalette);
float coordX = mix(gl_TexCoord[0].x,gl_TexCoord[0].y,u_usePalette);
float period = floor(coordY/u_npotEmulationFactor);
coordX += u_npotEmulationXOffset*floor(mod(coordY,u_npotEmulationFactor));
coordY = period+mod(coordY,u_npotEmulationFactor);
vec2 newCoord = mix(gl_TexCoord[0].xy,mix(vec2(coordX,coordY),vec2(coordY,coordX),u_usePalette),u_npotEmulation);
#ifdef GL_ARB_shader_texture_lod
vec2 texCoord = fract(newCoord.xy);
texCoord = clamp(u_texturePosSize.zw*texCoord, u_halfTexelSize, u_texturePosSize.zw-u_halfTexelSize);
vec4 color = texture2DGradARB(s_texture, u_texturePosSize.xy+texCoord, dFdx(texCoord), dFdy(texCoord));
#else
vec2 transitionBlend = fwidth(floor(newCoord.xy));
transitionBlend = fwidth(transitionBlend)+transitionBlend;
vec2 texCoord = mix(fract(newCoord.xy), abs(c_one-mod(newCoord.xy+c_one, c_two)), transitionBlend);
texCoord = clamp(u_texturePosSize.zw*texCoord, u_halfTexelSize, u_texturePosSize.zw-u_halfTexelSize);
vec4 color = texture2D(s_texture, u_texturePosSize.xy+texCoord);
#endif
float shade = clamp((u_shade+max(u_visFactor*v_distance-0.5*u_shadeInterpolate,c_zero)), c_zero, u_numShades-c_one);
float shadeFrac = mod(shade, c_one);
float colorIndex = texture2D(s_palswap, u_palswapPos+u_palswapSize*vec2(color.r, floor(shade)/u_numShades)).r;
colorIndex = c_basepalOffset + c_basepalScale*colorIndex;
vec4 palettedColor = texture2D(s_palette, vec2(colorIndex, c_zero));
colorIndex = texture2D(s_palswap, u_palswapPos+u_palswapSize*vec2(color.r, (floor(shade)+c_one)/u_numShades)).r;
colorIndex = c_basepalOffset + c_basepalScale*colorIndex;
vec4 palettedColorNext = texture2D(s_palette, vec2(colorIndex, c_zero));
palettedColor.rgb = mix(palettedColor.rgb, palettedColorNext.rgb, shadeFrac*u_shadeInterpolate);
float fullbright = mix(u_usePalette*palettedColor.a, c_zero, u_useColorOnly);
palettedColor.a = c_one-floor(color.r);
color = mix(color, palettedColor, u_usePalette);
#ifdef POLYMOST1_EXTENDED
vec4 detailColor = texture2D(s_detail, gl_TexCoord[3].xy);
detailColor = mix(c_vec4_one, 2.0*detailColor, u_useDetailMapping*detailColor.a);
color.rgb *= detailColor.rgb;
#endif
color = mix(color, c_vec4_one, u_useColorOnly);
// DEBUG
//color = texture2D(s_palswap, gl_TexCoord[0].xy);
//color = texture2D(s_palette, gl_TexCoord[0].xy);
//color = texture2D(s_texture, gl_TexCoord[0].yx);
color.rgb = mix(v_color.rgb*color.rgb, color.rgb, fullbright);
float fogEnabled = mix(u_fogEnabled, c_zero, u_usePalette);
fullbright = max(c_one-fogEnabled, fullbright);
float fogFactor = clamp((gl_Fog.end-gl_FogFragCoord)*gl_Fog.scale, fullbright, c_one);
//float fogFactor = clamp(gl_FogFragCoord, fullbright, c_one);
color.rgb = mix(gl_Fog.color.rgb, color.rgb, fogFactor);
#ifdef POLYMOST1_EXTENDED
vec4 glowColor = texture2D(s_glow, gl_TexCoord[4].xy);
color.rgb = mix(color.rgb, glowColor.rgb, u_useGlowMapping*glowColor.a*(c_one-u_useColorOnly));
#endif
color.a *= v_color.a;
gl_FragData[0] = color;
}

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source/build/src/polymost1Vert.glsl Normal file
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#version 110
varying vec4 v_color;
varying float v_distance;
//u_texturePosSize is the texture position & size packaged into a single vec4 as {pos.x, pos.y, size.x, size.y}
uniform vec4 u_texturePosSize;
uniform float u_usePalette;
uniform mat4 u_rotMatrix;
const float c_zero = 0.0;
const float c_one = 1.0;
void main()
{
vec4 vertex = u_rotMatrix * gl_Vertex;
vec4 eyeCoordPosition = gl_ModelViewMatrix * vertex;
gl_Position = gl_ModelViewProjectionMatrix * vertex;
eyeCoordPosition.xyz /= eyeCoordPosition.w;
gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
gl_TexCoord[0] = mix(gl_TexCoord[0].xyzw, gl_TexCoord[0].yxzw, u_usePalette);
gl_TexCoord[3] = gl_TextureMatrix[3] * gl_MultiTexCoord3;
gl_TexCoord[4] = gl_TextureMatrix[4] * gl_MultiTexCoord4;
gl_FogFragCoord = abs(eyeCoordPosition.z);
//gl_FogFragCoord = clamp((gl_Fog.end-abs(eyeCoordPosition.z))*gl_Fog.scale, c_zero, c_one);
v_color = gl_Color;
v_distance = gl_Vertex.z;
}