void pnTriangles::bindFragmentProgram()
//
// Description:
//
// THIS IS JUST SAMPLE CODE, MORE NEEDS TO BE DONE TO ACTUALLY USE
// INCORPORATE A FRAGMENT SHADER.
//
{
// See if extension is supported
//
if (!fExtensionSupported[kFragmentShaderEXT])
return;
// Enable vertex shaders
glEnable(GL_FRAGMENT_SHADER_ATI);
// Generate a new fragment shader id, if none has been created.
if (fFragmentShaderId != -1)
{
glBindFragmentShaderATI (fFragmentShaderId);
return;
}
fFragmentShaderId = glGenFragmentShadersATI(1);
glBindFragmentShaderATI (fFragmentShaderId);
glBeginFragmentShaderATI();
// Place sample fragment shader code here ....
glEndFragmentShaderATI();
}
GLenum VDOpenGLBinding::InitTechniques(const VDOpenGLTechnique *techniques, int techniqueCount) {
GLuint listBase = glGenLists(techniqueCount);
for(int i=0; i<techniqueCount; ++i) {
const VDOpenGLTechnique& tech = techniques[i];
GLenum shader;
switch(tech.mFragmentShaderMode) {
case kVDOpenGLFragmentShaderModeNVRC2:
if (!NV_register_combiners2)
continue;
// fall through
case kVDOpenGLFragmentShaderModeNVRC:
if (!NV_register_combiners)
continue;
break;
case kVDOpenGLFragmentShaderModeATIFS:
if (!ATI_fragment_shader)
continue;
break;
}
if (tech.mFragmentShaderMode == kVDOpenGLFragmentShaderModeATIFS) {
shader = glGenFragmentShadersATI(1);
glBindFragmentShaderATI(shader);
CreateATIFragmentShader(*this, *(const VDOpenGLATIFragmentShaderConfig *)tech.mpFragmentShader);
glBindFragmentShaderATI(0);
}
glNewList(listBase + i, GL_COMPILE);
switch(tech.mFragmentShaderMode) {
case kVDOpenGLFragmentShaderModeNVRC:
glEnable(GL_REGISTER_COMBINERS_NV);
glDisable(GL_PER_STAGE_CONSTANTS_NV);
if (ATI_fragment_shader)
glDisable(GL_FRAGMENT_SHADER_ATI);
CreateNVRegisterCombinerSetup(*this, *(const VDOpenGLNVRegisterCombinerConfig *)tech.mpFragmentShader, false);
break;
case kVDOpenGLFragmentShaderModeNVRC2:
glEnable(GL_REGISTER_COMBINERS_NV);
glEnable(GL_PER_STAGE_CONSTANTS_NV);
if (ATI_fragment_shader)
glDisable(GL_FRAGMENT_SHADER_ATI);
CreateNVRegisterCombinerSetup(*this, *(const VDOpenGLNVRegisterCombinerConfig *)tech.mpFragmentShader, true);
break;
case kVDOpenGLFragmentShaderModeATIFS:
if (NV_register_combiners)
glDisable(GL_REGISTER_COMBINERS_NV);
glEnable(GL_FRAGMENT_SHADER_ATI);
glBindFragmentShaderATI(shader);
break;
}
glEndList();
}
return listBase;
}
void cGLState_ATIDiffuse::InitData()
{
mlBind = glGenFragmentShadersATI(1);
Log("Creating and binding ATI diffuse shader to %d\n",mlBind);
glBindFragmentShaderATI(mlBind);
glBeginFragmentShaderATI();
glSampleMapATI(GL_REG_0_ATI, GL_TEXTURE0_ARB, GL_SWIZZLE_STR_ATI);
glSampleMapATI(GL_REG_2_ATI, GL_TEXTURE2_ARB, GL_SWIZZLE_STR_ATI);
//Reg0 = NormlizedVec dot3 Vector(0,0,1)
float vConst[4] = {0,0,1,0};
glSetFragmentShaderConstantATI( GL_CON_0_ATI,vConst);
glColorFragmentOp2ATI( GL_DOT3_ATI, GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_0_ATI, GL_NONE, GL_2X_BIT_ATI|GL_BIAS_BIT_ATI,
GL_CON_0_ATI, GL_NONE, GL_NONE);
glAlphaFragmentOp2ATI( GL_DOT3_ATI, GL_REG_0_ATI, GL_NONE,
GL_REG_0_ATI, GL_NONE, GL_2X_BIT_ATI|GL_BIAS_BIT_ATI,
GL_CON_0_ATI, GL_NONE, GL_NONE);
//Reg0 = Light * Attenuation
glAlphaFragmentOp2ATI( GL_MUL_ATI, GL_REG_0_ATI, GL_NONE,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_2_ATI, GL_NONE, GL_NONE);
glEndFragmentShaderATI();
}
void cGLState_ATISpot::InitData()
{
mlBind = glGenFragmentShadersATI(1);
Log("Creating and binding ATI spot shader to %d\n",mlBind);
glBindFragmentShaderATI(mlBind);
glBeginFragmentShaderATI();
glSampleMapATI(GL_REG_0_ATI, GL_TEXTURE0_ARB, GL_SWIZZLE_STR_ATI);
glSampleMapATI(GL_REG_1_ATI, GL_TEXTURE1_ARB, GL_SWIZZLE_STR_DR_ATI);
glSampleMapATI(GL_REG_2_ATI, GL_TEXTURE2_ARB, GL_SWIZZLE_STR_ATI);
//Reg0 = Diffuse * Spot
glColorFragmentOp2ATI(GL_MUL_ATI, GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_1_ATI, GL_NONE, GL_NONE);
//Reg0 = NegRejection * Reg0
glColorFragmentOp2ATI(GL_MUL_ATI, GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_2_ATI, GL_NONE, GL_NONE);
//Reg0 = LightColor * Reg0
glColorFragmentOp2ATI(GL_MUL_ATI, GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_PRIMARY_COLOR_ARB, GL_NONE, GL_NONE);
glEndFragmentShaderATI();
}
void cGLState_ATIBump::InitData()
{
mlBind = glGenFragmentShadersATI(1);
Log("Creating and binding ATI bump shader to %d\n",mlBind);
glBindFragmentShaderATI(mlBind);
glBeginFragmentShaderATI();
glSampleMapATI(GL_REG_0_ATI, GL_TEXTURE0_ARB, GL_SWIZZLE_STR_ATI);
glSampleMapATI(GL_REG_1_ATI, GL_TEXTURE1_ARB, GL_SWIZZLE_STR_ATI);
glSampleMapATI(GL_REG_2_ATI, GL_TEXTURE2_ARB, GL_SWIZZLE_STR_ATI);
//Reg0 = NormlizedVec dot3 NormalMap
glColorFragmentOp2ATI( GL_DOT3_ATI, GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_1_ATI, GL_NONE, GL_2X_BIT_ATI|GL_BIAS_BIT_ATI,
GL_REG_0_ATI, GL_NONE, GL_2X_BIT_ATI|GL_BIAS_BIT_ATI);
glAlphaFragmentOp2ATI( GL_DOT3_ATI, GL_REG_0_ATI, GL_NONE,
GL_REG_1_ATI, GL_NONE, GL_2X_BIT_ATI|GL_BIAS_BIT_ATI,
GL_REG_0_ATI, GL_NONE, GL_2X_BIT_ATI|GL_BIAS_BIT_ATI);
//Reg0 = Light * Attenuation
glAlphaFragmentOp2ATI( GL_MUL_ATI, GL_REG_0_ATI, GL_NONE,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_2_ATI, GL_NONE, GL_NONE);
glEndFragmentShaderATI();
}
void ToneMap::makeShadersPS14ATI() {
// Really slow--appears to be implemented in software!
gammaShaderPS14ATI = glGenFragmentShadersATI(1);
glBindFragmentShaderATI(gammaShaderPS14ATI);
glBeginFragmentShaderATI();
// Pass 1
// R0 = texture0[texcoord0]
glSampleMapATI(GL_REG_0_ATI, GL_TEXTURE0_ARB, GL_SWIZZLE_STR_ATI);
// Move the blue component of R0 into the red component of R3
glColorFragmentOp1ATI(GL_MOV_ATI, GL_REG_3_ATI, GL_RED_BIT_ATI, GL_NONE,
GL_REG_0_ATI, GL_BLUE, GL_NONE);
// R1 = texture1[R0]
// R2 = texture2[R3]
glSampleMapATI(GL_REG_1_ATI, GL_REG_0_ATI, GL_SWIZZLE_STR_ATI);
glSampleMapATI(GL_REG_2_ATI, GL_REG_3_ATI, GL_SWIZZLE_STR_ATI);
// At this point, R1 contains the gamma corrected red and green channels
// and R2 contains the corrected blue channel. Combine them:
// R0 = R1 + R2
glColorFragmentOp2ATI(GL_ADD_ATI, GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_1_ATI, GL_NONE, GL_NONE,
GL_REG_2_ATI, GL_NONE, GL_NONE);
// R0 = texcoord 0
//glPassTexCoordATI(GL_REG_0_ATI, GL_TEXTURE0_ARB, GL_SWIZZLE_STR_ATI);
//
//glPassTexCoordATI(GL_REG_1_ATI, GL_TEXTURE0_ARB, GL_SWIZZLE_STR_ATI);
glEndFragmentShaderATI();
}
static void ModeMenu(int entry)
{
if (entry >= TEX0 && entry <= TEX7) {
/* toggle */
GLint i = entry - TEX0;
TexEnabled[i] = !TexEnabled[i];
glActiveTextureARB(GL_TEXTURE0_ARB + i);
if (TexEnabled[i])
glEnable(GL_TEXTURE_2D);
else
glDisable(GL_TEXTURE_2D);
printf("Enabled: ");
for (i = 0; i < NumUnits; i++)
printf("%d ", (int) TexEnabled[i]);
printf("\n");
}
else if (entry==ANIMATE) {
Animate = !Animate;
}
else if (entry==SHADER) {
Shader = !Shader;
if (Shader) {
fprintf(stderr, "using 2-pass shader\n");
glBindFragmentShaderATI(boring2passID);
}
else {
fprintf(stderr, "using 1-pass shader\n");
glBindFragmentShaderATI(boringshaderID);
}
}
else if (entry==QUIT) {
exit(0);
}
glutPostRedisplay();
}
/**
* Enable the shader.
*/
void GLShader::enable(void)
{
switch (shaderType()) {
case ST_GL_ARB_FRAGMENT_PROGRAM:
#ifdef ENABLE_ATI_TEXT_FRAGMENT_SHADER
case ST_GL_ATI_TEXT_FRAGMENT_SHADER:
#endif /* ENABLE_ATI_TEXT_FRAGMENT_SHADER */
{
if (m_ARB_program == 0)
break;
#ifdef ENABLE_ATI_TEXT_FRAGMENT_SHADER
const GLenum prgType = (shaderType() == ST_GL_ARB_FRAGMENT_PROGRAM
? GL_FRAGMENT_PROGRAM_ARB
: GL_TEXT_FRAGMENT_SHADER_ATI
);
#else /* !ENABLE_ATI_TEXT_FRAGMENT_SHADER */
const GLenum prgType = GL_FRAGMENT_PROGRAM_ARB;
#endif /* ENABLE_ATI_TEXT_FRAGMENT_SHADER */
// Enable the shader.
glEnable(prgType);
glBindProgramARB(prgType, m_ARB_program);
break;
}
case ST_GL_ATI_FRAGMENT_SHADER:
if (m_ATI_fragment_shader == 0)
break;
glEnable(GL_FRAGMENT_SHADER_ATI);
glBindFragmentShaderATI(m_ATI_fragment_shader);
break;
default:
break;
}
}
void
piglit_init(int argc, char **argv)
{
bool pass = true;
piglit_require_extension("GL_ATI_fragment_shader");
glBeginFragmentShaderATI();
pass &= piglit_check_gl_error(GL_NO_ERROR);
glGenFragmentShadersATI(1);
pass &= piglit_check_gl_error(GL_INVALID_OPERATION);
glBindFragmentShaderATI(2);
pass &= piglit_check_gl_error(GL_INVALID_OPERATION);
glDeleteFragmentShaderATI(3);
pass &= piglit_check_gl_error(GL_INVALID_OPERATION);
glBeginFragmentShaderATI();
pass &= piglit_check_gl_error(GL_INVALID_OPERATION);
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
void cGLState_ATISpot::Bind()
{
glEnable(GL_FRAGMENT_SHADER_ATI);
glBindFragmentShaderATI(mlBind);
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_ATIFragmentShader_nglBindFragmentShaderATI(JNIEnv *env, jclass clazz, jint id, jlong function_pointer) {
glBindFragmentShaderATIPROC glBindFragmentShaderATI = (glBindFragmentShaderATIPROC)((intptr_t)function_pointer);
glBindFragmentShaderATI(id);
}
static void Init( int argc, char *argv[] )
{
GLuint texObj[8];
GLint size, i;
const char *exten = (const char *) glGetString(GL_EXTENSIONS);
if (!strstr(exten, "GL_ATI_fragment_shader")) {
printf("Sorry, GL_ATI_fragment_shader not supported by this renderer.\n");
exit(1);
}
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &size);
printf("%d x %d max texture size\n", size, size);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
for (i = 0; i < NumUnits; i++) {
if (i < 6)
TexEnabled[i] = GL_TRUE;
else
TexEnabled[i] = GL_FALSE;
}
/* allocate two texture objects */
glGenTextures(NumUnits, texObj);
/* setup the texture objects */
for (i = 0; i < NumUnits; i++) {
glActiveTextureARB(GL_TEXTURE0_ARB + i);
glBindTexture(GL_TEXTURE_2D, texObj[i]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
if (i == 0) {
if (!LoadRGBMipmaps(TEXTURE_1_FILE, GL_RGB)) {
printf("Error: couldn't load texture image\n");
exit(1);
}
}
else if (i == 1) {
if (!LoadRGBMipmaps(TEXTURE_2_FILE, GL_RGB)) {
printf("Error: couldn't load texture image\n");
exit(1);
}
}
else {
/* checker */
GLubyte image[8][8][3];
GLint i, j;
for (i = 0; i < 8; i++) {
for (j = 0; j < 8; j++) {
if ((i + j) & 1) {
image[i][j][0] = 50;
image[i][j][1] = 50;
image[i][j][2] = 50;
}
else {
image[i][j][0] = 25;
image[i][j][1] = 25;
image[i][j][2] = 25;
}
}
}
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 8, 8, 0,
GL_RGB, GL_UNSIGNED_BYTE, (GLvoid *) image);
}
/* Bind texObj[i] to ith texture unit */
/* if (i < 2)
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
else
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_ADD);*/
if (TexEnabled[i])
glEnable(GL_TEXTURE_2D);
}
boringshaderID = glGenFragmentShadersATI(1);
boring2passID = glGenFragmentShadersATI(1);
if (boring2passID == 0)
{
fprintf(stderr, "couldn't get frag shader id\n");
exit(1);
}
glBindFragmentShaderATI(boringshaderID);
/* maybe not the most creative shader but at least I know how it should look like! */
glBeginFragmentShaderATI();
glSampleMapATI(GL_REG_0_ATI, GL_TEXTURE0_ARB, GL_SWIZZLE_STR_ATI);
glSampleMapATI(GL_REG_1_ATI, GL_TEXTURE1_ARB, GL_SWIZZLE_STR_ATI);
glSampleMapATI(GL_REG_2_ATI, GL_TEXTURE2_ARB, GL_SWIZZLE_STR_ATI);
glSampleMapATI(GL_REG_3_ATI, GL_TEXTURE3_ARB, GL_SWIZZLE_STR_ATI);
glSampleMapATI(GL_REG_4_ATI, GL_TEXTURE4_ARB, GL_SWIZZLE_STR_ATI);
glSampleMapATI(GL_REG_5_ATI, GL_TEXTURE5_ARB, GL_SWIZZLE_STR_ATI);
glColorFragmentOp2ATI(GL_MUL_ATI,
GL_REG_0_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_PRIMARY_COLOR, GL_NONE, GL_NONE);
glAlphaFragmentOp1ATI(GL_MOV_ATI,
GL_REG_0_ATI, GL_NONE,
GL_PRIMARY_COLOR, GL_NONE, GL_NONE);
glColorFragmentOp3ATI(GL_MAD_ATI,
GL_REG_0_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_1_ATI, GL_NONE, GL_NONE,
GL_REG_2_ATI, GL_NONE, GL_NONE);
glColorFragmentOp2ATI(GL_ADD_ATI,
GL_REG_0_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_3_ATI, GL_NONE, GL_NONE);
glColorFragmentOp2ATI(GL_ADD_ATI,
GL_REG_0_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_4_ATI, GL_NONE, GL_NONE);
glColorFragmentOp2ATI(GL_ADD_ATI,
GL_REG_0_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_5_ATI, GL_NONE, GL_NONE);
glEndFragmentShaderATI();
/* mathematically equivalent to first shader but using 2 passes together with
some tex coord rerouting */
glBindFragmentShaderATI(boring2passID);
glBeginFragmentShaderATI();
glPassTexCoordATI(GL_REG_1_ATI, GL_TEXTURE0_ARB, GL_SWIZZLE_STR_ATI);
glSampleMapATI(GL_REG_2_ATI, GL_TEXTURE2_ARB, GL_SWIZZLE_STR_ATI);
glSampleMapATI(GL_REG_3_ATI, GL_TEXTURE3_ARB, GL_SWIZZLE_STR_ATI);
glSampleMapATI(GL_REG_4_ATI, GL_TEXTURE4_ARB, GL_SWIZZLE_STR_ATI);
glSampleMapATI(GL_REG_5_ATI, GL_TEXTURE5_ARB, GL_SWIZZLE_STR_ATI);
glColorFragmentOp2ATI(GL_ADD_ATI,
GL_REG_0_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
GL_REG_2_ATI, GL_NONE, GL_NONE,
GL_REG_3_ATI, GL_NONE, GL_NONE);
glColorFragmentOp2ATI(GL_ADD_ATI,
GL_REG_0_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_4_ATI, GL_NONE, GL_NONE);
glColorFragmentOp2ATI(GL_ADD_ATI,
GL_REG_0_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_5_ATI, GL_NONE, GL_NONE);
/* not really a dependant read */
glSampleMapATI(GL_REG_0_ATI, GL_REG_1_ATI, GL_SWIZZLE_STR_ATI);
glSampleMapATI(GL_REG_1_ATI, GL_TEXTURE1_ARB, GL_SWIZZLE_STR_ATI);
glPassTexCoordATI(GL_REG_5_ATI, GL_REG_0_ATI, GL_SWIZZLE_STR_ATI);
glColorFragmentOp2ATI(GL_MUL_ATI,
GL_REG_0_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_PRIMARY_COLOR, GL_NONE, GL_NONE);
glAlphaFragmentOp1ATI(GL_MOV_ATI,
GL_REG_0_ATI, GL_NONE,
GL_PRIMARY_COLOR, GL_NONE, GL_NONE);
glColorFragmentOp3ATI(GL_MAD_ATI,
GL_REG_0_ATI, GL_NONE, GL_SATURATE_BIT_ATI,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_1_ATI, GL_NONE, GL_NONE,
GL_REG_5_ATI, GL_NONE, GL_NONE);
/* in principle we're finished here, but to test a bit more
we do some fun with dot ops, replication et al. */
glSetFragmentShaderConstantATI(GL_CON_3_ATI, shaderconstant);
glColorFragmentOp2ATI(GL_DOT4_ATI,
GL_REG_3_ATI, GL_GREEN_BIT_ATI, GL_EIGHTH_BIT_ATI,
GL_ZERO, GL_NONE, GL_COMP_BIT_ATI | GL_NEGATE_BIT_ATI,
GL_CON_3_ATI, GL_RED, GL_2X_BIT_ATI);
/* those args must get ignored, except dstReg */
glAlphaFragmentOp2ATI(GL_DOT4_ATI,
GL_REG_4_ATI, GL_NONE,
GL_ZERO, GL_NONE, GL_NONE,
GL_ZERO, GL_NONE, GL_NONE);
/* -> reg3 g = reg4 alpha = -0.5 */
glAlphaFragmentOp2ATI(GL_ADD_ATI,
GL_REG_5_ATI, GL_NONE,
GL_REG_3_ATI, GL_GREEN, GL_NONE,
GL_REG_4_ATI, GL_NONE, GL_NONE);
/* -> reg5 a = -1 */
glColorFragmentOp3ATI(GL_DOT2_ADD_ATI,
GL_REG_4_ATI, GL_BLUE_BIT_ATI, GL_HALF_BIT_ATI,
GL_REG_5_ATI, GL_ALPHA, GL_NEGATE_BIT_ATI,
GL_ONE, GL_NONE, GL_BIAS_BIT_ATI,
GL_ONE, GL_ALPHA, GL_2X_BIT_ATI | GL_NEGATE_BIT_ATI);
/* -> reg 4 b = -0.5 */
glColorFragmentOp2ATI(GL_MUL_ATI,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_4_ATI, GL_BLUE, GL_NEGATE_BIT_ATI | GL_2X_BIT_ATI,
GL_REG_0_ATI, GL_NONE, GL_NONE);
glEndFragmentShaderATI();
glBindFragmentShaderATI(boringshaderID);
glEnable(GL_FRAGMENT_SHADER_ATI);
glShadeModel(GL_FLAT);
glClearColor(0.3, 0.3, 0.4, 1.0);
if (argc > 1 && strcmp(argv[1], "-info")==0) {
printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
}
printf("output should be identical with both shaders to multiarb demo when 6 textures are enabled\n");
}
