/*
* Mesa 3-D graphics library
- * Version: 6.5.2
*
* Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
*/
+#include "c99_math.h"
#include "main/glheader.h"
-#include "main/colormac.h"
#include "main/macros.h"
#include "s_context.h"
return CLAMP(f, 0.0F, 1.0F);
case GL_EXP:
d = ctx->Fog.Density;
- f = EXPF(-d * z);
+ f = expf(-d * z);
f = CLAMP(f, 0.0F, 1.0F);
return f;
case GL_EXP2:
d = ctx->Fog.Density;
- f = EXPF(-(d * d * z * z));
+ f = expf(-(d * d * z * z));
f = CLAMP(f, 0.0F, 1.0F);
return f;
default:
#define LINEAR_FOG(f, coord) f = (fogEnd - coord) * fogScale
-#define EXP_FOG(f, coord) f = EXPF(density * coord)
+#define EXP_FOG(f, coord) f = expf(density * coord)
#define EXP2_FOG(f, coord) \
do { \
GLfloat tmp = negDensitySquared * coord * coord; \
if (tmp < FLT_MIN_10_EXP) \
tmp = FLT_MIN_10_EXP; \
- f = EXPF(tmp); \
+ f = expf(tmp); \
} while(0)
* \param COMPUTE_F code to compute the fog blend factor, f.
*/
#define FOG_LOOP(TYPE, FOG_FUNC) \
-if (span->arrayAttribs & FRAG_BIT_FOGC) { \
+if (span->arrayAttribs & VARYING_BIT_FOGC) { \
GLuint i; \
for (i = 0; i < span->end; i++) { \
- const GLfloat fogCoord = span->array->attribs[FRAG_ATTRIB_FOGC][i][0]; \
- const GLfloat c = FABSF(fogCoord); \
+ const GLfloat fogCoord = span->array->attribs[VARYING_SLOT_FOGC][i][0]; \
+ const GLfloat c = fabsf(fogCoord); \
GLfloat f, oneMinusF; \
FOG_FUNC(f, c); \
f = CLAMP(f, 0.0F, 1.0F); \
} \
} \
else { \
- const GLfloat fogStep = span->attrStepX[FRAG_ATTRIB_FOGC][0]; \
- GLfloat fogCoord = span->attrStart[FRAG_ATTRIB_FOGC][0]; \
- const GLfloat wStep = span->attrStepX[FRAG_ATTRIB_WPOS][3]; \
- GLfloat w = span->attrStart[FRAG_ATTRIB_WPOS][3]; \
+ const GLfloat fogStep = span->attrStepX[VARYING_SLOT_FOGC][0]; \
+ GLfloat fogCoord = span->attrStart[VARYING_SLOT_FOGC][0]; \
+ const GLfloat wStep = span->attrStepX[VARYING_SLOT_POS][3]; \
+ GLfloat w = span->attrStart[VARYING_SLOT_POS][3]; \
GLuint i; \
for (i = 0; i < span->end; i++) { \
- const GLfloat c = FABSF(fogCoord) / w; \
+ const GLfloat c = fabsf(fogCoord) / w; \
GLfloat f, oneMinusF; \
FOG_FUNC(f, c); \
f = CLAMP(f, 0.0F, 1.0F); \
const SWcontext *swrast = CONST_SWRAST_CONTEXT(ctx);
GLfloat rFog, gFog, bFog;
- ASSERT(swrast->_FogEnabled);
- ASSERT(span->arrayMask & SPAN_RGBA);
+ assert(swrast->_FogEnabled);
+ assert(span->arrayMask & SPAN_RGBA);
/* compute (scaled) fog color */
if (span->array->ChanType == GL_UNSIGNED_BYTE) {
FOG_LOOP(GLushort, LINEAR_FOG);
}
else {
- GLfloat (*rgba)[4] = span->array->attribs[FRAG_ATTRIB_COL0];
- ASSERT(span->array->ChanType == GL_FLOAT);
+ GLfloat (*rgba)[4] = span->array->attribs[VARYING_SLOT_COL0];
+ assert(span->array->ChanType == GL_FLOAT);
FOG_LOOP(GLfloat, LINEAR_FOG);
}
}
FOG_LOOP(GLushort, EXP_FOG);
}
else {
- GLfloat (*rgba)[4] = span->array->attribs[FRAG_ATTRIB_COL0];
- ASSERT(span->array->ChanType == GL_FLOAT);
+ GLfloat (*rgba)[4] = span->array->attribs[VARYING_SLOT_COL0];
+ assert(span->array->ChanType == GL_FLOAT);
FOG_LOOP(GLfloat, EXP_FOG);
}
}
FOG_LOOP(GLushort, EXP2_FOG);
}
else {
- GLfloat (*rgba)[4] = span->array->attribs[FRAG_ATTRIB_COL0];
- ASSERT(span->array->ChanType == GL_FLOAT);
+ GLfloat (*rgba)[4] = span->array->attribs[VARYING_SLOT_COL0];
+ assert(span->array->ChanType == GL_FLOAT);
FOG_LOOP(GLfloat, EXP2_FOG);
}
}
FOG_LOOP(GLushort, BLEND_FOG);
}
else {
- GLfloat (*rgba)[4] = span->array->attribs[FRAG_ATTRIB_COL0];
- ASSERT(span->array->ChanType == GL_FLOAT);
+ GLfloat (*rgba)[4] = span->array->attribs[VARYING_SLOT_COL0];
+ assert(span->array->ChanType == GL_FLOAT);
FOG_LOOP(GLfloat, BLEND_FOG);
}
}