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progs/glsl: add type field to shtest config files

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Plus, texture loading.
This commit is contained in:
Brian Paul
2009-08-13 15:53:49 -06:00
parent 823703418e
commit 62d1132160
4 changed files with 108 additions and 54 deletions
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10
progs/glsl/brick.shtest
View File

@@ -1,8 +1,8 @@
vs CH06-brick.vert
fs CH06-brick.frag
uniform LightPosition 0.1 0.1 9.0
uniform BrickColor 0.8 0.2 0.2
uniform MortarColor 0.6 0.6 0.6
uniform BrickSize 1.0 0.3
uniform BrickPct 0.9 0.8
uniform LightPosition GL_FLOAT_VEC3 0.1 0.1 9.0
uniform BrickColor GL_FLOAT_VEC3 0.8 0.2 0.2
uniform MortarColor GL_FLOAT_VEC3 0.6 0.6 0.6
uniform BrickSize GL_FLOAT_VEC2 1.0 0.3
uniform BrickPct GL_FLOAT_VEC2 0.9 0.8

23
progs/glsl/mandelbrot.shtest
View File

@@ -1,14 +1,13 @@
vs CH18-mandel.vert
fs CH18-mandel.frag
uniform LightPosition 0.1 0.1 9.0
uniform SpecularContribution 0.5
uniform DiffuseContribution 0.5
uniform Shininess 20.0
uniform Iterations 12
uniform Zoom 0.125
uniform Xcenter -1.5
uniform Ycenter .005
uniform InnerColor 1 0 0
uniform OuterColor1 0 1 0
uniform OuterColor2 0 0 1
uniform LightPosition GL_FLOAT_VEC3 0.1 0.1 9.0
uniform SpecularContribution GL_FLOAT 0.5
uniform DiffuseContribution GL_FLOAT 0.5
uniform Shininess GL_FLOAT 20.0
uniform Iterations GL_FLOAT 12
uniform Zoom GL_FLOAT 0.125
uniform Xcenter GL_FLOAT -1.5
uniform Ycenter GL_FLOAT .005
uniform InnerColor GL_FLOAT_VEC3 1 0 0
uniform OuterColor1 GL_FLOAT_VEC3 0 1 0
uniform OuterColor2 GL_FLOAT_VEC3 0 0 1

99
progs/glsl/shtest.c
View File

@@ -35,6 +35,7 @@
#include <GL/glu.h>
#include <GL/glut.h>
#include "shaderutil.h"
#include "readtex.h"
typedef enum
@@ -361,6 +362,69 @@ InitUniforms(const struct config_file *conf,
}
static void
LoadTexture(GLint unit, const char *texFileName)
{
GLint imgWidth, imgHeight;
GLenum imgFormat;
GLubyte *image = NULL;
GLuint tex;
GLenum filter = GL_LINEAR;
image = LoadRGBImage(texFileName, &imgWidth, &imgHeight, &imgFormat);
if (!image) {
printf("Couldn't read %s\n", texFileName);
exit(1);
}
printf("Load Texture: unit %d: %s %d x %d\n",
unit, texFileName, imgWidth, imgHeight);
glActiveTexture(GL_TEXTURE0 + unit);
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
gluBuild2DMipmaps(GL_TEXTURE_2D, 4, imgWidth, imgHeight,
imgFormat, GL_UNSIGNED_BYTE, image);
free(image);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
}
static GLenum
TypeFromName(const char *n)
{
static const struct {
const char *name;
GLenum type;
} types[] = {
{ "GL_FLOAT", GL_FLOAT },
{ "GL_FLOAT_VEC2", GL_FLOAT_VEC2 },
{ "GL_FLOAT_VEC3", GL_FLOAT_VEC3 },
{ "GL_FLOAT_VEC4", GL_FLOAT_VEC4 },
{ "GL_INT", GL_INT },
{ "GL_INT_VEC2", GL_INT_VEC2 },
{ "GL_INT_VEC3", GL_INT_VEC3 },
{ "GL_INT_VEC4", GL_INT_VEC4 },
{ "GL_SAMPLER_2D", GL_SAMPLER_2D },
{ NULL, 0 }
};
GLuint i;
for (i = 0; types[i].name; i++) {
if (strcmp(types[i].name, n) == 0)
return types[i].type;
}
abort();
return GL_NONE;
}
/**
* Read a config file.
*/
@@ -381,7 +445,7 @@ ReadConfigFile(const char *filename, struct config_file *conf)
/* ugly but functional parser */
while (!feof(f)) {
fgets(line, sizeof(line), f);
if (line[0]) {
if (!feof(f) && line[0]) {
if (strncmp(line, "vs ", 3) == 0) {
VertShaderFile = strdup(line + 3);
VertShaderFile[strlen(VertShaderFile) - 1] = 0;
@@ -390,32 +454,23 @@ ReadConfigFile(const char *filename, struct config_file *conf)
FragShaderFile = strdup(line + 3);
FragShaderFile[strlen(FragShaderFile) - 1] = 0;
}
else if (strncmp(line, "texture ", 8) == 0) {
char texFileName[100];
int unit, k;
k = sscanf(line + 8, "%d %s", &unit, texFileName);
assert(k == 2);
LoadTexture(unit, texFileName);
}
else if (strncmp(line, "uniform ", 8) == 0) {
char name[1000];
char name[1000], typeName[100];
int k;
float v1, v2, v3, v4;
float v1 = 0.0F, v2 = 0.0F, v3 = 0.0F, v4 = 0.0F;
GLenum type;
k = sscanf(line + 8, "%s %f %f %f %f", name, &v1, &v2, &v3, &v4);
k = sscanf(line + 8, "%s %s %f %f %f %f", name, typeName,
&v1, &v2, &v3, &v4);
switch (k) {
case 1:
type = GL_NONE;
abort();
break;
case 2:
type = GL_FLOAT;
break;
case 3:
type = GL_FLOAT_VEC2;
break;
case 4:
type = GL_FLOAT_VEC3;
break;
case 5:
type = GL_FLOAT_VEC4;
break;
}
type = TypeFromName(typeName);
strcpy(conf->uniforms[conf->num_uniforms].name, name);
conf->uniforms[conf->num_uniforms].value[0] = v1;

30
progs/glsl/toyball.shtest
View File

@@ -1,17 +1,17 @@
vs CH11-toyball.vert
fs CH11-toyball.frag
uniform LightDir 0.57737 0.57735 0.57735 0.0
uniform HVector 0.32506 0.32506 0.88808 0.0
uniform BallCenter 0.0 0.0 0.0 1.0
uniform SpecularColor 0.4 0.4 0.4 60.0
uniform Red 0.6 0.0 0.0 1.0
uniform Blue 0.0 0.3 0.6 1.0
uniform Yellow 0.6 0.5 0.0 1.0
uniform HalfSpace0 1.0 0.0 0.0 0.2
uniform HalfSpace1 .309016994 0.951056516 0.0 0.2
uniform HalfSpace2 -0.809016994 0.587785252 0.0 0.2
uniform HalfSpace3 -0.809016994 -0.587785252 0.0 0.2
uniform HalfSpace4 .309116994 -0.951056516 0.0 0.2
uniform InOrOutInit -3.0
uniform StripeWidth 0.3
uniform FWidth .005
uniform LightDir GL_FLOAT_VEC4 0.57737 0.57735 0.57735 0.0
uniform HVector GL_FLOAT_VEC4 0.32506 0.32506 0.88808 0.0
uniform BallCenter GL_FLOAT_VEC4 0.0 0.0 0.0 1.0
uniform SpecularColor GL_FLOAT_VEC4 0.4 0.4 0.4 60.0
uniform Red GL_FLOAT_VEC4 0.6 0.0 0.0 1.0
uniform Blue GL_FLOAT_VEC4 0.0 0.3 0.6 1.0
uniform Yellow GL_FLOAT_VEC4 0.6 0.5 0.0 1.0
uniform HalfSpace0 GL_FLOAT_VEC4 1.0 0.0 0.0 0.2
uniform HalfSpace1 GL_FLOAT_VEC4 .309016994 0.951056516 0.0 0.2
uniform HalfSpace2 GL_FLOAT_VEC4 -0.809016994 0.587785252 0.0 0.2
uniform HalfSpace3 GL_FLOAT_VEC4 -0.809016994 -0.587785252 0.0 0.2
uniform HalfSpace4 GL_FLOAT_VEC4 .309116994 -0.951056516 0.0 0.2
uniform InOrOutInit GL_FLOAT -3.0
uniform StripeWidth GL_FLOAT 0.3
uniform FWidth GL_FLOAT .005