#include "c99_math.h"
#include "main/glheader.h"
#include "main/context.h"
-#include "main/imports.h"
+
#include "main/macros.h"
#include "main/samplerobj.h"
#include "main/teximage.h"
* Also note, FRAC(x) doesn't truly return the fractional part of x for x < 0.
* Instead, if x < 0 then FRAC(x) = 1 - true_frac(x).
*/
-#define FRAC(f) ((f) - IFLOOR(f))
+#define FRAC(f) ((f) - util_ifloor(f))
case GL_REPEAT:
u = s * size - 0.5F;
if (swImg->_IsPowerOfTwo) {
- *i0 = IFLOOR(u) & (size - 1);
+ *i0 = util_ifloor(u) & (size - 1);
*i1 = (*i0 + 1) & (size - 1);
}
else {
- *i0 = REMAINDER(IFLOOR(u), size);
+ *i0 = REMAINDER(util_ifloor(u), size);
*i1 = REMAINDER(*i0 + 1, size);
}
break;
else
u = s * size;
u -= 0.5F;
- *i0 = IFLOOR(u);
+ *i0 = util_ifloor(u);
*i1 = *i0 + 1;
if (*i0 < 0)
*i0 = 0;
else
u = s * size;
u -= 0.5F;
- *i0 = IFLOOR(u);
+ *i0 = util_ifloor(u);
*i1 = *i0 + 1;
}
break;
case GL_MIRRORED_REPEAT:
{
- const GLint flr = IFLOOR(s);
+ const GLint flr = util_ifloor(s);
if (flr & 1)
u = 1.0F - (s - (GLfloat) flr);
else
u = s - (GLfloat) flr;
u = (u * size) - 0.5F;
- *i0 = IFLOOR(u);
+ *i0 = util_ifloor(u);
*i1 = *i0 + 1;
if (*i0 < 0)
*i0 = 0;
else
u *= size;
u -= 0.5F;
- *i0 = IFLOOR(u);
+ *i0 = util_ifloor(u);
*i1 = *i0 + 1;
break;
case GL_MIRROR_CLAMP_TO_EDGE_EXT:
else
u *= size;
u -= 0.5F;
- *i0 = IFLOOR(u);
+ *i0 = util_ifloor(u);
*i1 = *i0 + 1;
if (*i0 < 0)
*i0 = 0;
else
u *= size;
u -= 0.5F;
- *i0 = IFLOOR(u);
+ *i0 = util_ifloor(u);
*i1 = *i0 + 1;
}
break;
else
u = s * size;
u -= 0.5F;
- *i0 = IFLOOR(u);
+ *i0 = util_ifloor(u);
*i1 = *i0 + 1;
break;
default:
case GL_REPEAT:
/* s limited to [0,1) */
/* i limited to [0,size-1] */
- i = IFLOOR(s * size);
+ i = util_ifloor(s * size);
if (swImg->_IsPowerOfTwo)
i &= (size - 1);
else
else if (s > max)
i = size - 1;
else
- i = IFLOOR(s * size);
+ i = util_ifloor(s * size);
}
return i;
case GL_CLAMP_TO_BORDER:
else if (s >= max)
i = size;
else
- i = IFLOOR(s * size);
+ i = util_ifloor(s * size);
}
return i;
case GL_MIRRORED_REPEAT:
{
const GLfloat min = 1.0F / (2.0F * size);
const GLfloat max = 1.0F - min;
- const GLint flr = IFLOOR(s);
+ const GLint flr = util_ifloor(s);
GLfloat u;
if (flr & 1)
u = 1.0F - (s - (GLfloat) flr);
else if (u > max)
i = size - 1;
else
- i = IFLOOR(u * size);
+ i = util_ifloor(u * size);
}
return i;
case GL_MIRROR_CLAMP_EXT:
else if (u >= 1.0F)
i = size - 1;
else
- i = IFLOOR(u * size);
+ i = util_ifloor(u * size);
}
return i;
case GL_MIRROR_CLAMP_TO_EDGE_EXT:
else if (u > max)
i = size - 1;
else
- i = IFLOOR(u * size);
+ i = util_ifloor(u * size);
}
return i;
case GL_MIRROR_CLAMP_TO_BORDER_EXT:
else if (u > max)
i = size;
else
- i = IFLOOR(u * size);
+ i = util_ifloor(u * size);
}
return i;
case GL_CLAMP:
else if (s >= 1.0F)
i = size - 1;
else
- i = IFLOOR(s * size);
+ i = util_ifloor(s * size);
return i;
default:
_mesa_problem(NULL, "Bad wrap mode");
GLint *i0, GLint *i1, GLfloat *weight)
{
GLfloat u = s * size - 0.5F;
- *i0 = IFLOOR(u) & (size - 1);
+ *i0 = util_ifloor(u) & (size - 1);
*i1 = (*i0 + 1) & (size - 1);
*weight = FRAC(u);
}
{
switch (wrapMode) {
case GL_CLAMP:
- return IFLOOR( CLAMP(coord, 0.0F, max - 1) );
+ return util_ifloor( CLAMP(coord, 0.0F, max - 1) );
case GL_CLAMP_TO_EDGE:
- return IFLOOR( CLAMP(coord, 0.5F, max - 0.5F) );
+ return util_ifloor( CLAMP(coord, 0.5F, max - 0.5F) );
case GL_CLAMP_TO_BORDER:
- return IFLOOR( CLAMP(coord, -0.5F, max + 0.5F) );
+ return util_ifloor( CLAMP(coord, -0.5F, max + 0.5F) );
default:
_mesa_problem(NULL, "bad wrapMode in clamp_rect_coord_nearest");
return 0;
case GL_CLAMP:
/* Not exactly what the spec says, but it matches NVIDIA output */
fcol = CLAMP(coord - 0.5F, 0.0F, max - 1);
- i0 = IFLOOR(fcol);
+ i0 = util_ifloor(fcol);
i1 = i0 + 1;
break;
case GL_CLAMP_TO_EDGE:
fcol = CLAMP(coord, 0.5F, max - 0.5F);
fcol -= 0.5F;
- i0 = IFLOOR(fcol);
+ i0 = util_ifloor(fcol);
i1 = i0 + 1;
if (i1 > max - 1)
i1 = max - 1;
case GL_CLAMP_TO_BORDER:
fcol = CLAMP(coord, -0.5F, max + 0.5F);
fcol -= 0.5F;
- i0 = IFLOOR(fcol);
+ i0 = util_ifloor(fcol);
i1 = i0 + 1;
break;
default:
static GLint
tex_array_slice(GLfloat coord, GLsizei size)
{
- GLint slice = IFLOOR(coord + 0.5f);
+ GLint slice = util_ifloor(coord + 0.5f);
slice = CLAMP(slice, 0, size - 1);
return slice;
}
* Optimized 2-D texture sampling:
* S and T wrap mode == GL_REPEAT
* GL_NEAREST min/mag filter
- * No border,
+ * No border,
* RowStride == Width,
* Format = GL_RGB
*/
(void) swImg;
for (k=0; k<n; k++) {
- GLint i = IFLOOR(texcoords[k][0] * width) & colMask;
- GLint j = IFLOOR(texcoords[k][1] * height) & rowMask;
+ GLint i = util_ifloor(texcoords[k][0] * width) & colMask;
+ GLint j = util_ifloor(texcoords[k][1] * height) & rowMask;
GLint pos = (j << shift) | i;
GLubyte *texel = (GLubyte *) swImg->ImageSlices[0] + 3 * pos;
rgba[k][RCOMP] = UBYTE_TO_FLOAT(texel[2]);
(void) swImg;
for (i = 0; i < n; i++) {
- const GLint col = IFLOOR(texcoords[i][0] * width) & colMask;
- const GLint row = IFLOOR(texcoords[i][1] * height) & rowMask;
+ const GLint col = util_ifloor(texcoords[i][0] * width) & colMask;
+ const GLint row = util_ifloor(texcoords[i][1] * height) & rowMask;
const GLint pos = (row << shift) | col;
const GLuint texel = *((GLuint *) swImg->ImageSlices[0] + pos);
rgba[i][RCOMP] = UBYTE_TO_FLOAT( (texel >> 24) );
for (i = 0; i < WEIGHT_LUT_SIZE; ++i) {
GLfloat alpha = 2;
GLfloat r2 = (GLfloat) i / (GLfloat) (WEIGHT_LUT_SIZE - 1);
- GLfloat weight = (GLfloat) exp(-alpha * r2);
+ GLfloat weight = expf(-alpha * r2);
weightLut[i] = weight;
}
}
GLfloat uy = dudy * scaling;
GLfloat vy = dvdy * scaling;
- /* compute ellipse coefficients to bound the region:
+ /* compute ellipse coefficients to bound the region:
* A*x*x + B*x*y + C*y*y = F.
*/
GLfloat A = vx*vx+vy*vy+1;
}
if (u >= maxUnit)
u = 0; /* not found, use 1st one; should never happen */
-
+
return u;
}
const struct swrast_texture_image *swImg = swrast_texture_image_const(tImg);
const GLfloat maxEccentricity =
samp->MaxAnisotropy * samp->MaxAnisotropy;
-
+
/* re-calculate the lambda values so that they are usable with anisotropic
* filtering
*/
/* based on interpolate_texcoords(struct gl_context *ctx, SWspan *span)
* in swrast/s_span.c
*/
-
+
/* find the texture unit index by looking up the current texture object
* from the context list of available texture objects.
*/
const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[u];
const GLboolean adjustLOD =
(texUnit->LodBias + samp->LodBias != 0.0F)
- || (samp->MinLod != -1000.0 || samp->MaxLod != 1000.0);
+ || (samp->MinLod != -1000.0F || samp->MaxLod != 1000.0F);
GLuint i;
-
+
/* on first access create the lookup table containing the filter weights. */
if (!weightLut) {
create_filter_table();
for (i = 0; i < n; i++) {
const GLfloat invQ = (q == 0.0F) ? 1.0F : (1.0F / q);
-
+
GLfloat dudx = texW * ((s + dsdx) / (q + dqdx) - s * invQ);
GLfloat dvdx = texH * ((t + dtdx) / (q + dqdx) - t * invQ);
GLfloat dudy = texW * ((s + dsdy) / (q + dqdy) - s * invQ);
GLfloat dvdy = texH * ((t + dtdy) / (q + dqdy) - t * invQ);
-
- /* note: instead of working with Px and Py, we will use the
+
+ /* note: instead of working with Px and Py, we will use the
* squared length instead, to avoid sqrt.
*/
GLfloat Px2 = dudx * dudx + dvdx * dvdx;
s += dsdx;
t += dtdx;
q += dqdx;
-
+
if (Px2 < Py2) {
Pmax2 = Py2;
Pmin2 = Px2;
Pmax2 = Px2;
Pmin2 = Py2;
}
-
+
/* if the eccentricity of the ellipse is too big, scale up the shorter
* of the two vectors to limit the maximum amount of work per pixel
*/
Pmin2 *= s; */
Pmin2 = Pmax2 / maxEccentricity;
}
-
+
/* note: we need to have Pmin=sqrt(Pmin2) here, but we can avoid
* this since 0.5*log(x) = log(sqrt(x))
*/
- lod = 0.5f * LOG2(Pmin2);
-
+ lod = 0.5f * util_fast_log2(Pmin2);
+
if (adjustLOD) {
/* from swrast/s_texcombine.c _swrast_texture_span */
if (texUnit->LodBias + samp->LodBias != 0.0F) {
ctx->Const.MaxTextureLodBias);
lod += bias;
- if (samp->MinLod != -1000.0 ||
- samp->MaxLod != 1000.0) {
+ if (samp->MinLod != -1000.0F ||
+ samp->MaxLod != 1000.0F) {
/* apply LOD clamping to lambda */
lod = CLAMP(lod, samp->MinLod, samp->MaxLod);
}
}
}
-
+
/* If the ellipse covers the whole image, we can
* simply return the average of the whole image.
*/
}
}
- {
+ {
const float ima = 1.0F / ma;
newCoord[0] = ( sc * ima + 1.0F ) * 0.5F;
newCoord[1] = ( tc * ima + 1.0F ) * 0.5F;
else {
swImg->FetchTexel(swImg, i1, j1, array, t11);
}
-
+
/* trilinear interpolation of samples */
lerp_rgba_2d(rgba, a, b, t00, t10, t01, t11);
}
case GL_LINEAR_MIPMAP_LINEAR:
sample_2d_array_linear_mipmap_linear(ctx, samp, tObj, m,
texcoords + minStart,
- lambda + minStart,
+ lambda + minStart,
rgba + minStart);
break;
default:
lambda + minStart, rgba + minStart);
break;
case GL_LINEAR_MIPMAP_NEAREST:
- sample_1d_array_linear_mipmap_nearest(ctx, samp, tObj, m,
+ sample_1d_array_linear_mipmap_nearest(ctx, samp, tObj, m,
texcoords + minStart,
lambda + minStart,
rgba + minStart);
lambda + minStart, rgba + minStart);
break;
case GL_LINEAR_MIPMAP_LINEAR:
- sample_1d_array_linear_mipmap_linear(ctx, samp, tObj, m,
+ sample_1d_array_linear_mipmap_linear(ctx, samp, tObj, m,
texcoords + minStart,
- lambda + minStart,
+ lambda + minStart,
rgba + minStart);
break;
default:
nearest_texcoord(samp, tObj, level, texcoords[i], &col, &row, &slice);
- if (col >= 0 && row >= 0 && col < width && row < height &&
+ if (col >= 0 && row >= 0 && col < width && row < height &&
slice >= 0 && slice < depth) {
swImg->FetchTexel(swImg, col, row, slice, &depthSample);
}
const struct gl_sampler_object *sampler)
{
if (!t || !_mesa_is_texture_complete(t, sampler)) {
- return &null_sample_func;
+ return null_sample_func;
}
else {
const GLboolean needLambda =
switch (t->Target) {
case GL_TEXTURE_1D:
if (is_depth_texture(t)) {
- return &sample_depth_texture;
+ return sample_depth_texture;
}
else if (needLambda) {
- return &sample_lambda_1d;
+ return sample_lambda_1d;
}
else if (sampler->MinFilter == GL_LINEAR) {
- return &sample_linear_1d;
+ return sample_linear_1d;
}
else {
assert(sampler->MinFilter == GL_NEAREST);
- return &sample_nearest_1d;
+ return sample_nearest_1d;
}
case GL_TEXTURE_2D:
if (is_depth_texture(t)) {
- return &sample_depth_texture;
+ return sample_depth_texture;
}
else if (needLambda) {
/* Anisotropic filtering extension. Activated only if mipmaps are used */
- if (sampler->MaxAnisotropy > 1.0 &&
+ if (sampler->MaxAnisotropy > 1.0F &&
sampler->MinFilter == GL_LINEAR_MIPMAP_LINEAR) {
- return &sample_lambda_2d_aniso;
+ return sample_lambda_2d_aniso;
}
- return &sample_lambda_2d;
+ return sample_lambda_2d;
}
else if (sampler->MinFilter == GL_LINEAR) {
- return &sample_linear_2d;
+ return sample_linear_2d;
}
else {
/* check for a few optimized cases */
}
case GL_TEXTURE_3D:
if (needLambda) {
- return &sample_lambda_3d;
+ return sample_lambda_3d;
}
else if (sampler->MinFilter == GL_LINEAR) {
- return &sample_linear_3d;
+ return sample_linear_3d;
}
else {
assert(sampler->MinFilter == GL_NEAREST);
- return &sample_nearest_3d;
+ return sample_nearest_3d;
}
case GL_TEXTURE_CUBE_MAP:
if (needLambda) {
- return &sample_lambda_cube;
+ return sample_lambda_cube;
}
else if (sampler->MinFilter == GL_LINEAR) {
- return &sample_linear_cube;
+ return sample_linear_cube;
}
else {
assert(sampler->MinFilter == GL_NEAREST);
- return &sample_nearest_cube;
+ return sample_nearest_cube;
}
case GL_TEXTURE_RECTANGLE_NV:
if (is_depth_texture(t)) {
- return &sample_depth_texture;
+ return sample_depth_texture;
}
else if (needLambda) {
- return &sample_lambda_rect;
+ return sample_lambda_rect;
}
else if (sampler->MinFilter == GL_LINEAR) {
- return &sample_linear_rect;
+ return sample_linear_rect;
}
else {
assert(sampler->MinFilter == GL_NEAREST);
- return &sample_nearest_rect;
+ return sample_nearest_rect;
}
case GL_TEXTURE_1D_ARRAY_EXT:
if (is_depth_texture(t)) {
- return &sample_depth_texture;
+ return sample_depth_texture;
}
else if (needLambda) {
- return &sample_lambda_1d_array;
+ return sample_lambda_1d_array;
}
else if (sampler->MinFilter == GL_LINEAR) {
- return &sample_linear_1d_array;
+ return sample_linear_1d_array;
}
else {
assert(sampler->MinFilter == GL_NEAREST);
- return &sample_nearest_1d_array;
+ return sample_nearest_1d_array;
}
case GL_TEXTURE_2D_ARRAY_EXT:
if (is_depth_texture(t)) {
- return &sample_depth_texture;
+ return sample_depth_texture;
}
else if (needLambda) {
- return &sample_lambda_2d_array;
+ return sample_lambda_2d_array;
}
else if (sampler->MinFilter == GL_LINEAR) {
- return &sample_linear_2d_array;
+ return sample_linear_2d_array;
}
else {
assert(sampler->MinFilter == GL_NEAREST);
- return &sample_nearest_2d_array;
+ return sample_nearest_2d_array;
}
default:
_mesa_problem(ctx,
"invalid target in _swrast_choose_texture_sample_func");
- return &null_sample_func;
+ return null_sample_func;
}
}
}
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