#include "pipe/p_defines.h"
#include "pipe/p_shader_tokens.h"
#include "util/u_math.h"
+#include "util/u_format.h"
#include "util/u_memory.h"
#include "sp_quad.h" /* only for #define QUAD_* tokens */
#include "sp_tex_sample.h"
#include "sp_tex_tile_cache.h"
+/** Set to one to help debug texture sampling */
+#define DEBUG_TEX 0
+
/*
* Return fractional part of 'f'. Used for computing interpolation weights.
/**
- * Do 2D/biliner interpolation of float values.
+ * Do 2D/bilinear interpolation of float values.
* v00, v10, v01 and v11 are typically four texture samples in a square/box.
* a and b are the horizontal and vertical interpolants.
* It's important that this function is inlined when compiled with
/**
* Compute coord % size for repeat wrap modes.
- * Note that if coord is a signed integer, coord % size doesn't give
- * the right value for coord < 0 (in terms of texture repeat). Just
- * casting to unsigned fixes that.
+ * Note that if coord is negative, coord % size doesn't give the right
+ * value. To avoid that problem we add a large multiple of the size
+ * (rather than using a conditional).
*/
static INLINE int
repeat(int coord, unsigned size)
{
- return (int) ((unsigned) coord % size);
+ return (coord + size * 1024) % size;
}
* \return integer texture index
*/
static void
-wrap_nearest_repeat(const float s[4], unsigned size, int icoord[4])
+wrap_nearest_repeat(float s, unsigned size, int *icoord)
{
- uint ch;
/* s limited to [0,1) */
/* i limited to [0,size-1] */
- for (ch = 0; ch < 4; ch++) {
- int i = util_ifloor(s[ch] * size);
- icoord[ch] = repeat(i, size);
- }
+ int i = util_ifloor(s * size);
+ *icoord = repeat(i, size);
}
static void
-wrap_nearest_clamp(const float s[4], unsigned size, int icoord[4])
+wrap_nearest_clamp(float s, unsigned size, int *icoord)
{
- uint ch;
/* s limited to [0,1] */
/* i limited to [0,size-1] */
- for (ch = 0; ch < 4; ch++) {
- if (s[ch] <= 0.0F)
- icoord[ch] = 0;
- else if (s[ch] >= 1.0F)
- icoord[ch] = size - 1;
- else
- icoord[ch] = util_ifloor(s[ch] * size);
- }
+ if (s <= 0.0F)
+ *icoord = 0;
+ else if (s >= 1.0F)
+ *icoord = size - 1;
+ else
+ *icoord = util_ifloor(s * size);
}
static void
-wrap_nearest_clamp_to_edge(const float s[4], unsigned size, int icoord[4])
+wrap_nearest_clamp_to_edge(float s, unsigned size, int *icoord)
{
- uint ch;
/* s limited to [min,max] */
/* i limited to [0, size-1] */
const float min = 1.0F / (2.0F * size);
const float max = 1.0F - min;
- for (ch = 0; ch < 4; ch++) {
- if (s[ch] < min)
- icoord[ch] = 0;
- else if (s[ch] > max)
- icoord[ch] = size - 1;
- else
- icoord[ch] = util_ifloor(s[ch] * size);
- }
+ if (s < min)
+ *icoord = 0;
+ else if (s > max)
+ *icoord = size - 1;
+ else
+ *icoord = util_ifloor(s * size);
}
static void
-wrap_nearest_clamp_to_border(const float s[4], unsigned size, int icoord[4])
+wrap_nearest_clamp_to_border(float s, unsigned size, int *icoord)
{
- uint ch;
/* s limited to [min,max] */
/* i limited to [-1, size] */
const float min = -1.0F / (2.0F * size);
const float max = 1.0F - min;
- for (ch = 0; ch < 4; ch++) {
- if (s[ch] <= min)
- icoord[ch] = -1;
- else if (s[ch] >= max)
- icoord[ch] = size;
- else
- icoord[ch] = util_ifloor(s[ch] * size);
- }
+ if (s <= min)
+ *icoord = -1;
+ else if (s >= max)
+ *icoord = size;
+ else
+ *icoord = util_ifloor(s * size);
}
static void
-wrap_nearest_mirror_repeat(const float s[4], unsigned size, int icoord[4])
+wrap_nearest_mirror_repeat(float s, unsigned size, int *icoord)
{
- uint ch;
const float min = 1.0F / (2.0F * size);
const float max = 1.0F - min;
- for (ch = 0; ch < 4; ch++) {
- const int flr = util_ifloor(s[ch]);
- float u = frac(s[ch]);
- if (flr & 1)
- u = 1.0F - u;
- if (u < min)
- icoord[ch] = 0;
- else if (u > max)
- icoord[ch] = size - 1;
- else
- icoord[ch] = util_ifloor(u * size);
- }
+ const int flr = util_ifloor(s);
+ float u = frac(s);
+ if (flr & 1)
+ u = 1.0F - u;
+ if (u < min)
+ *icoord = 0;
+ else if (u > max)
+ *icoord = size - 1;
+ else
+ *icoord = util_ifloor(u * size);
}
static void
-wrap_nearest_mirror_clamp(const float s[4], unsigned size, int icoord[4])
-{
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- /* s limited to [0,1] */
- /* i limited to [0,size-1] */
- const float u = fabsf(s[ch]);
- if (u <= 0.0F)
- icoord[ch] = 0;
- else if (u >= 1.0F)
- icoord[ch] = size - 1;
- else
- icoord[ch] = util_ifloor(u * size);
- }
+wrap_nearest_mirror_clamp(float s, unsigned size, int *icoord)
+{
+ /* s limited to [0,1] */
+ /* i limited to [0,size-1] */
+ const float u = fabsf(s);
+ if (u <= 0.0F)
+ *icoord = 0;
+ else if (u >= 1.0F)
+ *icoord = size - 1;
+ else
+ *icoord = util_ifloor(u * size);
}
static void
-wrap_nearest_mirror_clamp_to_edge(const float s[4], unsigned size,
- int icoord[4])
+wrap_nearest_mirror_clamp_to_edge(float s, unsigned size, int *icoord)
{
- uint ch;
/* s limited to [min,max] */
/* i limited to [0, size-1] */
const float min = 1.0F / (2.0F * size);
const float max = 1.0F - min;
- for (ch = 0; ch < 4; ch++) {
- const float u = fabsf(s[ch]);
- if (u < min)
- icoord[ch] = 0;
- else if (u > max)
- icoord[ch] = size - 1;
- else
- icoord[ch] = util_ifloor(u * size);
- }
+ const float u = fabsf(s);
+ if (u < min)
+ *icoord = 0;
+ else if (u > max)
+ *icoord = size - 1;
+ else
+ *icoord = util_ifloor(u * size);
}
static void
-wrap_nearest_mirror_clamp_to_border(const float s[4], unsigned size,
- int icoord[4])
+wrap_nearest_mirror_clamp_to_border(float s, unsigned size, int *icoord)
{
- uint ch;
/* s limited to [min,max] */
/* i limited to [0, size-1] */
const float min = -1.0F / (2.0F * size);
const float max = 1.0F - min;
- for (ch = 0; ch < 4; ch++) {
- const float u = fabsf(s[ch]);
- if (u < min)
- icoord[ch] = -1;
- else if (u > max)
- icoord[ch] = size;
- else
- icoord[ch] = util_ifloor(u * size);
- }
+ const float u = fabsf(s);
+ if (u < min)
+ *icoord = -1;
+ else if (u > max)
+ *icoord = size;
+ else
+ *icoord = util_ifloor(u * size);
}
/**
- * Used to compute texel locations for linear sampling for four texcoords.
+ * Used to compute texel locations for linear sampling
* \param wrapMode PIPE_TEX_WRAP_x
- * \param s the texcoords
+ * \param s the texcoord
* \param size the texture image size
- * \param icoord0 returns first texture indexes
- * \param icoord1 returns second texture indexes (usually icoord0 + 1)
- * \param w returns blend factor/weight between texture indexes
- * \param icoord returns the computed integer texture coords
+ * \param icoord0 returns first texture index
+ * \param icoord1 returns second texture index (usually icoord0 + 1)
+ * \param w returns blend factor/weight between texture indices
+ * \param icoord returns the computed integer texture coord
*/
static void
-wrap_linear_repeat(const float s[4], unsigned size,
- int icoord0[4], int icoord1[4], float w[4])
+wrap_linear_repeat(float s, unsigned size,
+ int *icoord0, int *icoord1, float *w)
{
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- float u = s[ch] * size - 0.5F;
- icoord0[ch] = repeat(util_ifloor(u), size);
- icoord1[ch] = repeat(icoord0[ch] + 1, size);
- w[ch] = frac(u);
- }
+ float u = s * size - 0.5F;
+ *icoord0 = repeat(util_ifloor(u), size);
+ *icoord1 = repeat(*icoord0 + 1, size);
+ *w = frac(u);
}
static void
-wrap_linear_clamp(const float s[4], unsigned size,
- int icoord0[4], int icoord1[4], float w[4])
+wrap_linear_clamp(float s, unsigned size,
+ int *icoord0, int *icoord1, float *w)
{
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- float u = CLAMP(s[ch], 0.0F, 1.0F);
- u = u * size - 0.5f;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- w[ch] = frac(u);
- }
+ float u = CLAMP(s, 0.0F, 1.0F);
+ u = u * size - 0.5f;
+ *icoord0 = util_ifloor(u);
+ *icoord1 = *icoord0 + 1;
+ *w = frac(u);
}
static void
-wrap_linear_clamp_to_edge(const float s[4], unsigned size,
- int icoord0[4], int icoord1[4], float w[4])
+wrap_linear_clamp_to_edge(float s, unsigned size,
+ int *icoord0, int *icoord1, float *w)
{
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- float u = CLAMP(s[ch], 0.0F, 1.0F);
- u = u * size - 0.5f;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- if (icoord0[ch] < 0)
- icoord0[ch] = 0;
- if (icoord1[ch] >= (int) size)
- icoord1[ch] = size - 1;
- w[ch] = frac(u);
- }
+ float u = CLAMP(s, 0.0F, 1.0F);
+ u = u * size - 0.5f;
+ *icoord0 = util_ifloor(u);
+ *icoord1 = *icoord0 + 1;
+ if (*icoord0 < 0)
+ *icoord0 = 0;
+ if (*icoord1 >= (int) size)
+ *icoord1 = size - 1;
+ *w = frac(u);
}
static void
-wrap_linear_clamp_to_border(const float s[4], unsigned size,
- int icoord0[4], int icoord1[4], float w[4])
+wrap_linear_clamp_to_border(float s, unsigned size,
+ int *icoord0, int *icoord1, float *w)
{
const float min = -1.0F / (2.0F * size);
const float max = 1.0F - min;
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- float u = CLAMP(s[ch], min, max);
- u = u * size - 0.5f;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- w[ch] = frac(u);
- }
+ float u = CLAMP(s, min, max);
+ u = u * size - 0.5f;
+ *icoord0 = util_ifloor(u);
+ *icoord1 = *icoord0 + 1;
+ *w = frac(u);
}
static void
-wrap_linear_mirror_repeat(const float s[4], unsigned size,
- int icoord0[4], int icoord1[4], float w[4])
+wrap_linear_mirror_repeat(float s, unsigned size,
+ int *icoord0, int *icoord1, float *w)
{
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- const int flr = util_ifloor(s[ch]);
- float u = frac(s[ch]);
- if (flr & 1)
- u = 1.0F - u;
- u = u * size - 0.5F;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- if (icoord0[ch] < 0)
- icoord0[ch] = 0;
- if (icoord1[ch] >= (int) size)
- icoord1[ch] = size - 1;
- w[ch] = frac(u);
- }
+ const int flr = util_ifloor(s);
+ float u = frac(s);
+ if (flr & 1)
+ u = 1.0F - u;
+ u = u * size - 0.5F;
+ *icoord0 = util_ifloor(u);
+ *icoord1 = *icoord0 + 1;
+ if (*icoord0 < 0)
+ *icoord0 = 0;
+ if (*icoord1 >= (int) size)
+ *icoord1 = size - 1;
+ *w = frac(u);
}
static void
-wrap_linear_mirror_clamp(const float s[4], unsigned size,
- int icoord0[4], int icoord1[4], float w[4])
-{
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- float u = fabsf(s[ch]);
- if (u >= 1.0F)
- u = (float) size;
- else
- u *= size;
- u -= 0.5F;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- w[ch] = frac(u);
- }
+wrap_linear_mirror_clamp(float s, unsigned size,
+ int *icoord0, int *icoord1, float *w)
+{
+ float u = fabsf(s);
+ if (u >= 1.0F)
+ u = (float) size;
+ else
+ u *= size;
+ u -= 0.5F;
+ *icoord0 = util_ifloor(u);
+ *icoord1 = *icoord0 + 1;
+ *w = frac(u);
}
static void
-wrap_linear_mirror_clamp_to_edge(const float s[4], unsigned size,
- int icoord0[4], int icoord1[4], float w[4])
-{
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- float u = fabsf(s[ch]);
- if (u >= 1.0F)
- u = (float) size;
- else
- u *= size;
- u -= 0.5F;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- if (icoord0[ch] < 0)
- icoord0[ch] = 0;
- if (icoord1[ch] >= (int) size)
- icoord1[ch] = size - 1;
- w[ch] = frac(u);
- }
+wrap_linear_mirror_clamp_to_edge(float s, unsigned size,
+ int *icoord0, int *icoord1, float *w)
+{
+ float u = fabsf(s);
+ if (u >= 1.0F)
+ u = (float) size;
+ else
+ u *= size;
+ u -= 0.5F;
+ *icoord0 = util_ifloor(u);
+ *icoord1 = *icoord0 + 1;
+ if (*icoord0 < 0)
+ *icoord0 = 0;
+ if (*icoord1 >= (int) size)
+ *icoord1 = size - 1;
+ *w = frac(u);
}
static void
-wrap_linear_mirror_clamp_to_border(const float s[4], unsigned size,
- int icoord0[4], int icoord1[4], float w[4])
+wrap_linear_mirror_clamp_to_border(float s, unsigned size,
+ int *icoord0, int *icoord1, float *w)
{
const float min = -1.0F / (2.0F * size);
const float max = 1.0F - min;
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- float u = fabsf(s[ch]);
- if (u <= min)
- u = min * size;
- else if (u >= max)
- u = max * size;
- else
- u *= size;
- u -= 0.5F;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- w[ch] = frac(u);
- }
+ float u = fabsf(s);
+ if (u <= min)
+ u = min * size;
+ else if (u >= max)
+ u = max * size;
+ else
+ u *= size;
+ u -= 0.5F;
+ *icoord0 = util_ifloor(u);
+ *icoord1 = *icoord0 + 1;
+ *w = frac(u);
}
* PIPE_TEX_WRAP_CLAMP for nearest sampling, unnormalized coords.
*/
static void
-wrap_nearest_unorm_clamp(const float s[4], unsigned size, int icoord[4])
+wrap_nearest_unorm_clamp(float s, unsigned size, int *icoord)
{
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- int i = util_ifloor(s[ch]);
- icoord[ch]= CLAMP(i, 0, (int) size-1);
- }
+ int i = util_ifloor(s);
+ *icoord = CLAMP(i, 0, (int) size-1);
}
* PIPE_TEX_WRAP_CLAMP_TO_BORDER for nearest sampling, unnormalized coords.
*/
static void
-wrap_nearest_unorm_clamp_to_border(const float s[4], unsigned size,
- int icoord[4])
+wrap_nearest_unorm_clamp_to_border(float s, unsigned size, int *icoord)
{
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- icoord[ch]= util_ifloor( CLAMP(s[ch], -0.5F, (float) size + 0.5F) );
- }
+ *icoord = util_ifloor( CLAMP(s, -0.5F, (float) size + 0.5F) );
}
* PIPE_TEX_WRAP_CLAMP_TO_EDGE for nearest sampling, unnormalized coords.
*/
static void
-wrap_nearest_unorm_clamp_to_edge(const float s[4], unsigned size,
- int icoord[4])
+wrap_nearest_unorm_clamp_to_edge(float s, unsigned size, int *icoord)
{
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- icoord[ch]= util_ifloor( CLAMP(s[ch], 0.5F, (float) size - 0.5F) );
- }
+ *icoord = util_ifloor( CLAMP(s, 0.5F, (float) size - 0.5F) );
}
* PIPE_TEX_WRAP_CLAMP for linear sampling, unnormalized coords.
*/
static void
-wrap_linear_unorm_clamp(const float s[4], unsigned size,
- int icoord0[4], int icoord1[4], float w[4])
+wrap_linear_unorm_clamp(float s, unsigned size,
+ int *icoord0, int *icoord1, float *w)
{
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- /* Not exactly what the spec says, but it matches NVIDIA output */
- float u = CLAMP(s[ch] - 0.5F, 0.0f, (float) size - 1.0f);
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- w[ch] = frac(u);
- }
+ /* Not exactly what the spec says, but it matches NVIDIA output */
+ float u = CLAMP(s - 0.5F, 0.0f, (float) size - 1.0f);
+ *icoord0 = util_ifloor(u);
+ *icoord1 = *icoord0 + 1;
+ *w = frac(u);
}
* PIPE_TEX_WRAP_CLAMP_TO_BORDER for linear sampling, unnormalized coords.
*/
static void
-wrap_linear_unorm_clamp_to_border(const float s[4], unsigned size,
- int icoord0[4], int icoord1[4], float w[4])
+wrap_linear_unorm_clamp_to_border(float s, unsigned size,
+ int *icoord0, int *icoord1, float *w)
{
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- float u = CLAMP(s[ch], -0.5F, (float) size + 0.5F);
- u -= 0.5F;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- if (icoord1[ch] > (int) size - 1)
- icoord1[ch] = size - 1;
- w[ch] = frac(u);
- }
+ float u = CLAMP(s, -0.5F, (float) size + 0.5F);
+ u -= 0.5F;
+ *icoord0 = util_ifloor(u);
+ *icoord1 = *icoord0 + 1;
+ if (*icoord1 > (int) size - 1)
+ *icoord1 = size - 1;
+ *w = frac(u);
}
* PIPE_TEX_WRAP_CLAMP_TO_EDGE for linear sampling, unnormalized coords.
*/
static void
-wrap_linear_unorm_clamp_to_edge(const float s[4], unsigned size,
- int icoord0[4], int icoord1[4], float w[4])
+wrap_linear_unorm_clamp_to_edge(float s, unsigned size,
+ int *icoord0, int *icoord1, float *w)
{
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- float u = CLAMP(s[ch], +0.5F, (float) size - 0.5F);
- u -= 0.5F;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- if (icoord1[ch] > (int) size - 1)
- icoord1[ch] = size - 1;
- w[ch] = frac(u);
- }
+ float u = CLAMP(s, +0.5F, (float) size - 0.5F);
+ u -= 0.5F;
+ *icoord0 = util_ifloor(u);
+ *icoord1 = *icoord0 + 1;
+ if (*icoord1 > (int) size - 1)
+ *icoord1 = size - 1;
+ *w = frac(u);
}
+/**
+ * Do coordinate to array index conversion. For array textures.
+ */
+static INLINE void
+wrap_array_layer(float coord, unsigned size, int *layer)
+{
+ int c = util_ifloor(coord + 0.5F);
+ *layer = CLAMP(c, 0, size - 1);
+}
+
/**
* Examine the quad's texture coordinates to compute the partial
* derivatives w.r.t X and Y, then compute lambda (level of detail).
*/
static float
-compute_lambda_1d(const struct sp_sampler_varient *samp,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE])
+compute_lambda_1d(const struct sp_sampler_variant *samp,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE])
{
- const struct pipe_resource *texture = samp->texture;
+ const struct pipe_resource *texture = samp->view->texture;
float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]);
float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]);
- float rho = MAX2(dsdx, dsdy) * texture->width0;
+ float rho = MAX2(dsdx, dsdy) * u_minify(texture->width0, samp->view->u.tex.first_level);
return util_fast_log2(rho);
}
static float
-compute_lambda_2d(const struct sp_sampler_varient *samp,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE])
+compute_lambda_2d(const struct sp_sampler_variant *samp,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE])
{
- const struct pipe_resource *texture = samp->texture;
+ const struct pipe_resource *texture = samp->view->texture;
float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]);
float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]);
float dtdx = fabsf(t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]);
float dtdy = fabsf(t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]);
- float maxx = MAX2(dsdx, dsdy) * texture->width0;
- float maxy = MAX2(dtdx, dtdy) * texture->height0;
+ float maxx = MAX2(dsdx, dsdy) * u_minify(texture->width0, samp->view->u.tex.first_level);
+ float maxy = MAX2(dtdx, dtdy) * u_minify(texture->height0, samp->view->u.tex.first_level);
float rho = MAX2(maxx, maxy);
return util_fast_log2(rho);
static float
-compute_lambda_3d(const struct sp_sampler_varient *samp,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE])
+compute_lambda_3d(const struct sp_sampler_variant *samp,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE])
{
- const struct pipe_resource *texture = samp->texture;
+ const struct pipe_resource *texture = samp->view->texture;
float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]);
float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]);
float dtdx = fabsf(t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]);
float dtdy = fabsf(t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]);
float dpdx = fabsf(p[QUAD_BOTTOM_RIGHT] - p[QUAD_BOTTOM_LEFT]);
float dpdy = fabsf(p[QUAD_TOP_LEFT] - p[QUAD_BOTTOM_LEFT]);
- float maxx = MAX2(dsdx, dsdy) * texture->width0;
- float maxy = MAX2(dtdx, dtdy) * texture->height0;
- float maxz = MAX2(dpdx, dpdy) * texture->depth0;
+ float maxx = MAX2(dsdx, dsdy) * u_minify(texture->width0, samp->view->u.tex.first_level);
+ float maxy = MAX2(dtdx, dtdy) * u_minify(texture->height0, samp->view->u.tex.first_level);
+ float maxz = MAX2(dpdx, dpdy) * u_minify(texture->depth0, samp->view->u.tex.first_level);
float rho;
rho = MAX2(maxx, maxy);
* Since there aren't derivatives to use, just return 0.
*/
static float
-compute_lambda_vert(const struct sp_sampler_varient *samp,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE])
+compute_lambda_vert(const struct sp_sampler_variant *samp,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE])
{
return 0.0f;
}
* \param rgba the quad to put the texel/color into
*
* XXX maybe move this into sp_tex_tile_cache.c and merge with the
- * sp_get_cached_tile_tex() function. Also, get 4 texels instead of 1...
+ * sp_get_cached_tile_tex() function.
*/
static INLINE const float *
-get_texel_2d_no_border(const struct sp_sampler_varient *samp,
+get_texel_2d_no_border(const struct sp_sampler_variant *samp,
union tex_tile_address addr, int x, int y)
{
const struct softpipe_tex_cached_tile *tile;
static INLINE const float *
-get_texel_2d(const struct sp_sampler_varient *samp,
+get_texel_2d(const struct sp_sampler_variant *samp,
union tex_tile_address addr, int x, int y)
{
- const struct pipe_resource *texture = samp->texture;
+ const struct pipe_resource *texture = samp->view->texture;
unsigned level = addr.bits.level;
if (x < 0 || x >= (int) u_minify(texture->width0, level) ||
y < 0 || y >= (int) u_minify(texture->height0, level)) {
- return samp->sampler->border_color;
+ return samp->sampler->border_color.f;
}
else {
return get_texel_2d_no_border( samp, addr, x, y );
}
}
+/*
+ * seamless cubemap neighbour array.
+ * this array is used to find the adjacent face in each of 4 directions,
+ * left, right, up, down. (or -x, +x, -y, +y).
+ */
+static const unsigned face_array[PIPE_TEX_FACE_MAX][4] = {
+ /* pos X first then neg X is Z different, Y the same */
+ /* PIPE_TEX_FACE_POS_X,*/
+ { PIPE_TEX_FACE_POS_Z, PIPE_TEX_FACE_NEG_Z,
+ PIPE_TEX_FACE_NEG_Y, PIPE_TEX_FACE_POS_Y },
+ /* PIPE_TEX_FACE_NEG_X */
+ { PIPE_TEX_FACE_NEG_Z, PIPE_TEX_FACE_POS_Z,
+ PIPE_TEX_FACE_NEG_Y, PIPE_TEX_FACE_POS_Y },
+
+ /* pos Y first then neg Y is X different, X the same */
+ /* PIPE_TEX_FACE_POS_Y */
+ { PIPE_TEX_FACE_NEG_X, PIPE_TEX_FACE_POS_X,
+ PIPE_TEX_FACE_POS_Z, PIPE_TEX_FACE_NEG_Z },
+
+ /* PIPE_TEX_FACE_NEG_Y */
+ { PIPE_TEX_FACE_NEG_X, PIPE_TEX_FACE_POS_X,
+ PIPE_TEX_FACE_NEG_Z, PIPE_TEX_FACE_POS_Z },
+
+ /* pos Z first then neg Y is X different, X the same */
+ /* PIPE_TEX_FACE_POS_Z */
+ { PIPE_TEX_FACE_NEG_X, PIPE_TEX_FACE_POS_X,
+ PIPE_TEX_FACE_NEG_Y, PIPE_TEX_FACE_POS_Y },
+
+ /* PIPE_TEX_FACE_NEG_Z */
+ { PIPE_TEX_FACE_POS_X, PIPE_TEX_FACE_NEG_X,
+ PIPE_TEX_FACE_NEG_Y, PIPE_TEX_FACE_POS_Y }
+};
+
+static INLINE unsigned
+get_next_face(unsigned face, int x, int y)
+{
+ int idx = 0;
+
+ if (x == 0 && y == 0)
+ return face;
+ if (x == -1)
+ idx = 0;
+ else if (x == 1)
+ idx = 1;
+ else if (y == -1)
+ idx = 2;
+ else if (y == 1)
+ idx = 3;
+
+ return face_array[face][idx];
+}
+
+static INLINE const float *
+get_texel_cube_seamless(const struct sp_sampler_variant *samp,
+ union tex_tile_address addr, int x, int y,
+ float *corner)
+{
+ const struct pipe_resource *texture = samp->view->texture;
+ unsigned level = addr.bits.level;
+ unsigned face = addr.bits.face;
+ int new_x, new_y;
+ int max_x, max_y;
+ int c;
+
+ max_x = (int) u_minify(texture->width0, level);
+ max_y = (int) u_minify(texture->height0, level);
+ new_x = x;
+ new_y = y;
+
+ /* the corner case */
+ if ((x < 0 || x >= max_x) &&
+ (y < 0 || y >= max_y)) {
+ const float *c1, *c2, *c3;
+ int fx = x < 0 ? 0 : max_x - 1;
+ int fy = y < 0 ? 0 : max_y - 1;
+ c1 = get_texel_2d_no_border( samp, addr, fx, fy);
+ addr.bits.face = get_next_face(face, (x < 0) ? -1 : 1, 0);
+ c2 = get_texel_2d_no_border( samp, addr, (x < 0) ? max_x - 1 : 0, fy);
+ addr.bits.face = get_next_face(face, 0, (y < 0) ? -1 : 1);
+ c3 = get_texel_2d_no_border( samp, addr, fx, (y < 0) ? max_y - 1 : 0);
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ corner[c] = CLAMP((c1[c] + c2[c] + c3[c]), 0.0F, 1.0F) / 3;
+
+ return corner;
+ }
+ /* change the face */
+ if (x < 0) {
+ new_x = max_x - 1;
+ face = get_next_face(face, -1, 0);
+ } else if (x >= max_x) {
+ new_x = 0;
+ face = get_next_face(face, 1, 0);
+ } else if (y < 0) {
+ new_y = max_y - 1;
+ face = get_next_face(face, 0, -1);
+ } else if (y >= max_y) {
+ new_y = 0;
+ face = get_next_face(face, 0, 1);
+ }
+
+ addr.bits.face = face;
+ return get_texel_2d_no_border( samp, addr, new_x, new_y );
+}
/* Gather a quad of adjacent texels within a tile:
*/
static INLINE void
-get_texel_quad_2d_no_border_single_tile(const struct sp_sampler_varient *samp,
+get_texel_quad_2d_no_border_single_tile(const struct sp_sampler_variant *samp,
union tex_tile_address addr,
unsigned x, unsigned y,
const float *out[4])
/* Gather a quad of potentially non-adjacent texels:
*/
static INLINE void
-get_texel_quad_2d_no_border(const struct sp_sampler_varient *samp,
+get_texel_quad_2d_no_border(const struct sp_sampler_variant *samp,
union tex_tile_address addr,
int x0, int y0,
int x1, int y1,
/* Can involve a lot of unnecessary checks for border color:
*/
static INLINE void
-get_texel_quad_2d(const struct sp_sampler_varient *samp,
+get_texel_quad_2d(const struct sp_sampler_variant *samp,
union tex_tile_address addr,
int x0, int y0,
int x1, int y1,
-/* 3d varients:
+/* 3d variants:
*/
static INLINE const float *
-get_texel_3d_no_border(const struct sp_sampler_varient *samp,
+get_texel_3d_no_border(const struct sp_sampler_variant *samp,
union tex_tile_address addr, int x, int y, int z)
{
const struct softpipe_tex_cached_tile *tile;
static INLINE const float *
-get_texel_3d(const struct sp_sampler_varient *samp,
+get_texel_3d(const struct sp_sampler_variant *samp,
union tex_tile_address addr, int x, int y, int z)
{
- const struct pipe_resource *texture = samp->texture;
+ const struct pipe_resource *texture = samp->view->texture;
unsigned level = addr.bits.level;
if (x < 0 || x >= (int) u_minify(texture->width0, level) ||
y < 0 || y >= (int) u_minify(texture->height0, level) ||
z < 0 || z >= (int) u_minify(texture->depth0, level)) {
- return samp->sampler->border_color;
+ return samp->sampler->border_color.f;
}
else {
return get_texel_3d_no_border( samp, addr, x, y, z );
}
+/* Get texel pointer for 1D array texture */
+static INLINE const float *
+get_texel_1d_array(const struct sp_sampler_variant *samp,
+ union tex_tile_address addr, int x, int y)
+{
+ const struct pipe_resource *texture = samp->view->texture;
+ unsigned level = addr.bits.level;
+
+ if (x < 0 || x >= (int) u_minify(texture->width0, level)) {
+ return samp->sampler->border_color.f;
+ }
+ else {
+ return get_texel_2d_no_border(samp, addr, x, y);
+ }
+}
+
+
+/* Get texel pointer for 2D array texture */
+static INLINE const float *
+get_texel_2d_array(const struct sp_sampler_variant *samp,
+ union tex_tile_address addr, int x, int y, int layer)
+{
+ const struct pipe_resource *texture = samp->view->texture;
+ unsigned level = addr.bits.level;
+
+ assert(layer < (int) texture->array_size);
+ assert(layer >= 0);
+
+ if (x < 0 || x >= (int) u_minify(texture->width0, level) ||
+ y < 0 || y >= (int) u_minify(texture->height0, level)) {
+ return samp->sampler->border_color.f;
+ }
+ else {
+ return get_texel_3d_no_border(samp, addr, x, y, layer);
+ }
+}
+
+
+/* Get texel pointer for cube array texture */
+static INLINE const float *
+get_texel_cube_array(const struct sp_sampler_variant *samp,
+ union tex_tile_address addr, int x, int y, int layer)
+{
+ const struct pipe_resource *texture = samp->view->texture;
+ unsigned level = addr.bits.level;
+
+ assert(layer < (int) texture->array_size);
+ assert(layer >= 0);
+
+ if (x < 0 || x >= (int) u_minify(texture->width0, level) ||
+ y < 0 || y >= (int) u_minify(texture->height0, level)) {
+ return samp->sampler->border_color.f;
+ }
+ else {
+ return get_texel_3d_no_border(samp, addr, x, y, layer);
+ }
+}
/**
* Given the logbase2 of a mipmap's base level size and a mipmap level,
* return the size (in texels) of that mipmap level.
}
+static void
+print_sample(const char *function, const float *rgba)
+{
+ debug_printf("%s %g %g %g %g\n",
+ function,
+ rgba[0], rgba[TGSI_NUM_CHANNELS], rgba[2*TGSI_NUM_CHANNELS], rgba[3*TGSI_NUM_CHANNELS]);
+}
+
+
+static void
+print_sample_4(const char *function, float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ debug_printf("%s %g %g %g %g, %g %g %g %g, %g %g %g %g, %g %g %g %g\n",
+ function,
+ rgba[0][0], rgba[1][0], rgba[2][0], rgba[3][0],
+ rgba[0][1], rgba[1][1], rgba[2][1], rgba[3][1],
+ rgba[0][2], rgba[1][2], rgba[2][2], rgba[3][2],
+ rgba[0][3], rgba[1][3], rgba[2][3], rgba[3][3]);
+}
+
/* Some image-filter fastpaths:
*/
static INLINE void
img_filter_2d_linear_repeat_POT(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float *rgba)
{
- const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- unsigned j;
- unsigned level = samp->level;
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
unsigned xpot = pot_level_size(samp->xpot, level);
unsigned ypot = pot_level_size(samp->ypot, level);
unsigned xmax = (xpot - 1) & (TILE_SIZE - 1); /* MIN2(TILE_SIZE, xpot) - 1; */
unsigned ymax = (ypot - 1) & (TILE_SIZE - 1); /* MIN2(TILE_SIZE, ypot) - 1; */
union tex_tile_address addr;
+ int c;
- addr.value = 0;
- addr.bits.level = samp->level;
+ float u = s * xpot - 0.5F;
+ float v = t * ypot - 0.5F;
- for (j = 0; j < QUAD_SIZE; j++) {
- int c;
+ int uflr = util_ifloor(u);
+ int vflr = util_ifloor(v);
- float u = s[j] * xpot - 0.5F;
- float v = t[j] * ypot - 0.5F;
+ float xw = u - (float)uflr;
+ float yw = v - (float)vflr;
- int uflr = util_ifloor(u);
- int vflr = util_ifloor(v);
+ int x0 = uflr & (xpot - 1);
+ int y0 = vflr & (ypot - 1);
- float xw = u - (float)uflr;
- float yw = v - (float)vflr;
+ const float *tx[4];
+
+ addr.value = 0;
+ addr.bits.level = level;
- int x0 = uflr & (xpot - 1);
- int y0 = vflr & (ypot - 1);
+ /* Can we fetch all four at once:
+ */
+ if (x0 < xmax && y0 < ymax) {
+ get_texel_quad_2d_no_border_single_tile(samp, addr, x0, y0, tx);
+ }
+ else {
+ unsigned x1 = (x0 + 1) & (xpot - 1);
+ unsigned y1 = (y0 + 1) & (ypot - 1);
+ get_texel_quad_2d_no_border(samp, addr, x0, y0, x1, y1, tx);
+ }
- const float *tx[4];
-
- /* Can we fetch all four at once:
- */
- if (x0 < xmax && y0 < ymax) {
- get_texel_quad_2d_no_border_single_tile(samp, addr, x0, y0, tx);
- }
- else {
- unsigned x1 = (x0 + 1) & (xpot - 1);
- unsigned y1 = (y0 + 1) & (ypot - 1);
- get_texel_quad_2d_no_border(samp, addr, x0, y0, x1, y1, tx);
- }
+ /* interpolate R, G, B, A */
+ for (c = 0; c < TGSI_QUAD_SIZE; c++) {
+ rgba[TGSI_NUM_CHANNELS*c] = lerp_2d(xw, yw,
+ tx[0][c], tx[1][c],
+ tx[2][c], tx[3][c]);
+ }
- /* interpolate R, G, B, A */
- for (c = 0; c < 4; c++) {
- rgba[c][j] = lerp_2d(xw, yw,
- tx[0][c], tx[1][c],
- tx[2][c], tx[3][c]);
- }
+ if (DEBUG_TEX) {
+ print_sample(__FUNCTION__, rgba);
}
}
static INLINE void
img_filter_2d_nearest_repeat_POT(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float rgba[TGSI_QUAD_SIZE])
{
- const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- unsigned j;
- unsigned level = samp->level;
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
unsigned xpot = pot_level_size(samp->xpot, level);
unsigned ypot = pot_level_size(samp->ypot, level);
+ const float *out;
union tex_tile_address addr;
+ int c;
- addr.value = 0;
- addr.bits.level = samp->level;
-
- for (j = 0; j < QUAD_SIZE; j++) {
- int c;
+ float u = s * xpot;
+ float v = t * ypot;
- float u = s[j] * xpot;
- float v = t[j] * ypot;
+ int uflr = util_ifloor(u);
+ int vflr = util_ifloor(v);
- int uflr = util_ifloor(u);
- int vflr = util_ifloor(v);
+ int x0 = uflr & (xpot - 1);
+ int y0 = vflr & (ypot - 1);
- int x0 = uflr & (xpot - 1);
- int y0 = vflr & (ypot - 1);
+ addr.value = 0;
+ addr.bits.level = level;
- const float *out = get_texel_2d_no_border(samp, addr, x0, y0);
+ out = get_texel_2d_no_border(samp, addr, x0, y0);
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = out[c];
- for (c = 0; c < 4; c++) {
- rgba[c][j] = out[c];
- }
+ if (DEBUG_TEX) {
+ print_sample(__FUNCTION__, rgba);
}
}
static INLINE void
img_filter_2d_nearest_clamp_POT(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float rgba[TGSI_QUAD_SIZE])
{
- const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- unsigned j;
- unsigned level = samp->level;
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
unsigned xpot = pot_level_size(samp->xpot, level);
unsigned ypot = pot_level_size(samp->ypot, level);
union tex_tile_address addr;
+ int c;
+
+ float u = s * xpot;
+ float v = t * ypot;
+
+ int x0, y0;
+ const float *out;
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = level;
+
+ x0 = util_ifloor(u);
+ if (x0 < 0)
+ x0 = 0;
+ else if (x0 > xpot - 1)
+ x0 = xpot - 1;
+
+ y0 = util_ifloor(v);
+ if (y0 < 0)
+ y0 = 0;
+ else if (y0 > ypot - 1)
+ y0 = ypot - 1;
+
+ out = get_texel_2d_no_border(samp, addr, x0, y0);
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = out[c];
- for (j = 0; j < QUAD_SIZE; j++) {
- int c;
+ if (DEBUG_TEX) {
+ print_sample(__FUNCTION__, rgba);
+ }
+}
- float u = s[j] * xpot;
- float v = t[j] * ypot;
- int x0, y0;
- const float *out;
+static void
+img_filter_1d_nearest(struct tgsi_sampler *tgsi_sampler,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ enum tgsi_sampler_control control,
+ float rgba[TGSI_QUAD_SIZE])
+{
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
+ int width;
+ int x;
+ union tex_tile_address addr;
+ const float *out;
+ int c;
- x0 = util_ifloor(u);
- if (x0 < 0)
- x0 = 0;
- else if (x0 > xpot - 1)
- x0 = xpot - 1;
+ width = u_minify(texture->width0, level);
- y0 = util_ifloor(v);
- if (y0 < 0)
- y0 = 0;
- else if (y0 > ypot - 1)
- y0 = ypot - 1;
-
- out = get_texel_2d_no_border(samp, addr, x0, y0);
+ assert(width > 0);
- for (c = 0; c < 4; c++) {
- rgba[c][j] = out[c];
- }
+ addr.value = 0;
+ addr.bits.level = level;
+
+ samp->nearest_texcoord_s(s, width, &x);
+
+ out = get_texel_2d(samp, addr, x, 0);
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = out[c];
+
+ if (DEBUG_TEX) {
+ print_sample(__FUNCTION__, rgba);
}
}
static void
-img_filter_1d_nearest(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
- enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
-{
- const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- const struct pipe_resource *texture = samp->texture;
- unsigned level0, j;
+img_filter_1d_array_nearest(struct tgsi_sampler *tgsi_sampler,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ enum tgsi_sampler_control control,
+ float *rgba)
+{
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
int width;
- int x[4];
+ int x, layer;
union tex_tile_address addr;
+ const float *out;
+ int c;
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
+ width = u_minify(texture->width0, level);
assert(width > 0);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = level;
- samp->nearest_texcoord_s(s, width, x);
+ samp->nearest_texcoord_s(s, width, &x);
+ wrap_array_layer(t, texture->array_size, &layer);
- for (j = 0; j < QUAD_SIZE; j++) {
- const float *out = get_texel_2d(samp, addr, x[j], 0);
- int c;
- for (c = 0; c < 4; c++) {
- rgba[c][j] = out[c];
- }
+ out = get_texel_1d_array(samp, addr, x, layer);
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = out[c];
+
+ if (DEBUG_TEX) {
+ print_sample(__FUNCTION__, rgba);
}
}
static void
img_filter_2d_nearest(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float *rgba)
{
- const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- const struct pipe_resource *texture = samp->texture;
- unsigned level0, j;
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
int width, height;
- int x[4], y[4];
+ int x, y;
union tex_tile_address addr;
+ const float *out;
+ int c;
+
+ width = u_minify(texture->width0, level);
+ height = u_minify(texture->height0, level);
+
+ assert(width > 0);
+ assert(height > 0);
+
+ addr.value = 0;
+ addr.bits.level = level;
+
+ samp->nearest_texcoord_s(s, width, &x);
+ samp->nearest_texcoord_t(t, height, &y);
+
+ out = get_texel_2d(samp, addr, x, y);
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = out[c];
+ if (DEBUG_TEX) {
+ print_sample(__FUNCTION__, rgba);
+ }
+}
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
+
+static void
+img_filter_2d_array_nearest(struct tgsi_sampler *tgsi_sampler,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ enum tgsi_sampler_control control,
+ float *rgba)
+{
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
+ int width, height;
+ int x, y, layer;
+ union tex_tile_address addr;
+ const float *out;
+ int c;
+
+ width = u_minify(texture->width0, level);
+ height = u_minify(texture->height0, level);
assert(width > 0);
assert(height > 0);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = level;
- samp->nearest_texcoord_s(s, width, x);
- samp->nearest_texcoord_t(t, height, y);
+ samp->nearest_texcoord_s(s, width, &x);
+ samp->nearest_texcoord_t(t, height, &y);
+ wrap_array_layer(p, texture->array_size, &layer);
- for (j = 0; j < QUAD_SIZE; j++) {
- const float *out = get_texel_2d(samp, addr, x[j], y[j]);
- int c;
- for (c = 0; c < 4; c++) {
- rgba[c][j] = out[c];
- }
+ out = get_texel_2d_array(samp, addr, x, y, layer);
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = out[c];
+
+ if (DEBUG_TEX) {
+ print_sample(__FUNCTION__, rgba);
}
}
static void
img_filter_cube_nearest(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float *rgba)
{
- const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- const struct pipe_resource *texture = samp->texture;
- const unsigned *faces = samp->faces; /* zero when not cube-mapping */
- unsigned level0, j;
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
int width, height;
- int x[4], y[4];
+ int x, y;
union tex_tile_address addr;
+ const float *out;
+ int c;
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
+ width = u_minify(texture->width0, level);
+ height = u_minify(texture->height0, level);
assert(width > 0);
assert(height > 0);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = level;
+
+ /*
+ * If NEAREST filtering is done within a miplevel, always apply wrap
+ * mode CLAMP_TO_EDGE.
+ */
+ if (samp->sampler->seamless_cube_map) {
+ wrap_nearest_clamp_to_edge(s, width, &x);
+ wrap_nearest_clamp_to_edge(t, height, &y);
+ } else {
+ samp->nearest_texcoord_s(s, width, &x);
+ samp->nearest_texcoord_t(t, height, &y);
+ }
- samp->nearest_texcoord_s(s, width, x);
- samp->nearest_texcoord_t(t, height, y);
+ out = get_texel_2d(samp, face(addr, face_id), x, y);
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = out[c];
- for (j = 0; j < QUAD_SIZE; j++) {
- const float *out = get_texel_2d(samp, face(addr, faces[j]), x[j], y[j]);
- int c;
- for (c = 0; c < 4; c++) {
- rgba[c][j] = out[c];
- }
+ if (DEBUG_TEX) {
+ print_sample(__FUNCTION__, rgba);
}
}
+static void
+img_filter_cube_array_nearest(struct tgsi_sampler *tgsi_sampler,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ enum tgsi_sampler_control control,
+ float *rgba)
+{
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
+ int width, height;
+ int x, y, layer;
+ union tex_tile_address addr;
+ const float *out;
+ int c;
+
+ width = u_minify(texture->width0, level);
+ height = u_minify(texture->height0, level);
+
+ assert(width > 0);
+ assert(height > 0);
+
+ addr.value = 0;
+ addr.bits.level = level;
+
+ samp->nearest_texcoord_s(s, width, &x);
+ samp->nearest_texcoord_t(t, height, &y);
+ wrap_array_layer(p, texture->array_size, &layer);
+
+ out = get_texel_cube_array(samp, addr, x, y, layer * 6 + face_id);
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = out[c];
+
+ if (DEBUG_TEX) {
+ print_sample(__FUNCTION__, rgba);
+ }
+}
static void
img_filter_3d_nearest(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float *rgba)
{
- const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- const struct pipe_resource *texture = samp->texture;
- unsigned level0, j;
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
int width, height, depth;
- int x[4], y[4], z[4];
+ int x, y, z;
union tex_tile_address addr;
+ const float *out;
+ int c;
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
- depth = u_minify(texture->depth0, level0);
+ width = u_minify(texture->width0, level);
+ height = u_minify(texture->height0, level);
+ depth = u_minify(texture->depth0, level);
assert(width > 0);
assert(height > 0);
assert(depth > 0);
- samp->nearest_texcoord_s(s, width, x);
- samp->nearest_texcoord_t(t, height, y);
- samp->nearest_texcoord_p(p, depth, z);
+ samp->nearest_texcoord_s(s, width, &x);
+ samp->nearest_texcoord_t(t, height, &y);
+ samp->nearest_texcoord_p(p, depth, &z);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = level;
- for (j = 0; j < QUAD_SIZE; j++) {
- const float *out = get_texel_3d(samp, addr, x[j], y[j], z[j]);
- int c;
- for (c = 0; c < 4; c++) {
- rgba[c][j] = out[c];
- }
- }
+ out = get_texel_3d(samp, addr, x, y, z);
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = out[c];
}
static void
img_filter_1d_linear(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float *rgba)
{
- const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- const struct pipe_resource *texture = samp->texture;
- unsigned level0, j;
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
int width;
- int x0[4], x1[4];
- float xw[4]; /* weights */
+ int x0, x1;
+ float xw; /* weights */
union tex_tile_address addr;
+ const float *tx0, *tx1;
+ int c;
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
+ width = u_minify(texture->width0, level);
assert(width > 0);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = level;
- samp->linear_texcoord_s(s, width, x0, x1, xw);
+ samp->linear_texcoord_s(s, width, &x0, &x1, &xw);
- for (j = 0; j < QUAD_SIZE; j++) {
- const float *tx0 = get_texel_2d(samp, addr, x0[j], 0);
- const float *tx1 = get_texel_2d(samp, addr, x1[j], 0);
- int c;
+ tx0 = get_texel_2d(samp, addr, x0, 0);
+ tx1 = get_texel_2d(samp, addr, x1, 0);
- /* interpolate R, G, B, A */
- for (c = 0; c < 4; c++) {
- rgba[c][j] = lerp(xw[j], tx0[c], tx1[c]);
- }
- }
+ /* interpolate R, G, B, A */
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = lerp(xw, tx0[c], tx1[c]);
+}
+
+
+static void
+img_filter_1d_array_linear(struct tgsi_sampler *tgsi_sampler,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ enum tgsi_sampler_control control,
+ float *rgba)
+{
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
+ int width;
+ int x0, x1, layer;
+ float xw; /* weights */
+ union tex_tile_address addr;
+ const float *tx0, *tx1;
+ int c;
+
+ width = u_minify(texture->width0, level);
+
+ assert(width > 0);
+
+ addr.value = 0;
+ addr.bits.level = level;
+
+ samp->linear_texcoord_s(s, width, &x0, &x1, &xw);
+ wrap_array_layer(t, texture->array_size, &layer);
+
+ tx0 = get_texel_1d_array(samp, addr, x0, layer);
+ tx1 = get_texel_1d_array(samp, addr, x1, layer);
+
+ /* interpolate R, G, B, A */
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = lerp(xw, tx0[c], tx1[c]);
}
static void
img_filter_2d_linear(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float *rgba)
{
- const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- const struct pipe_resource *texture = samp->texture;
- unsigned level0, j;
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
int width, height;
- int x0[4], y0[4], x1[4], y1[4];
- float xw[4], yw[4]; /* weights */
+ int x0, y0, x1, y1;
+ float xw, yw; /* weights */
union tex_tile_address addr;
+ const float *tx0, *tx1, *tx2, *tx3;
+ int c;
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
+ width = u_minify(texture->width0, level);
+ height = u_minify(texture->height0, level);
assert(width > 0);
assert(height > 0);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = level;
- samp->linear_texcoord_s(s, width, x0, x1, xw);
- samp->linear_texcoord_t(t, height, y0, y1, yw);
+ samp->linear_texcoord_s(s, width, &x0, &x1, &xw);
+ samp->linear_texcoord_t(t, height, &y0, &y1, &yw);
- for (j = 0; j < QUAD_SIZE; j++) {
- const float *tx0 = get_texel_2d(samp, addr, x0[j], y0[j]);
- const float *tx1 = get_texel_2d(samp, addr, x1[j], y0[j]);
- const float *tx2 = get_texel_2d(samp, addr, x0[j], y1[j]);
- const float *tx3 = get_texel_2d(samp, addr, x1[j], y1[j]);
- int c;
+ tx0 = get_texel_2d(samp, addr, x0, y0);
+ tx1 = get_texel_2d(samp, addr, x1, y0);
+ tx2 = get_texel_2d(samp, addr, x0, y1);
+ tx3 = get_texel_2d(samp, addr, x1, y1);
- /* interpolate R, G, B, A */
- for (c = 0; c < 4; c++) {
- rgba[c][j] = lerp_2d(xw[j], yw[j],
- tx0[c], tx1[c],
- tx2[c], tx3[c]);
- }
- }
+ /* interpolate R, G, B, A */
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = lerp_2d(xw, yw,
+ tx0[c], tx1[c],
+ tx2[c], tx3[c]);
+}
+
+
+static void
+img_filter_2d_array_linear(struct tgsi_sampler *tgsi_sampler,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ enum tgsi_sampler_control control,
+ float *rgba)
+{
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
+ int width, height;
+ int x0, y0, x1, y1, layer;
+ float xw, yw; /* weights */
+ union tex_tile_address addr;
+ const float *tx0, *tx1, *tx2, *tx3;
+ int c;
+
+ width = u_minify(texture->width0, level);
+ height = u_minify(texture->height0, level);
+
+ assert(width > 0);
+ assert(height > 0);
+
+ addr.value = 0;
+ addr.bits.level = level;
+
+ samp->linear_texcoord_s(s, width, &x0, &x1, &xw);
+ samp->linear_texcoord_t(t, height, &y0, &y1, &yw);
+ wrap_array_layer(p, texture->array_size, &layer);
+
+ tx0 = get_texel_2d_array(samp, addr, x0, y0, layer);
+ tx1 = get_texel_2d_array(samp, addr, x1, y0, layer);
+ tx2 = get_texel_2d_array(samp, addr, x0, y1, layer);
+ tx3 = get_texel_2d_array(samp, addr, x1, y1, layer);
+
+ /* interpolate R, G, B, A */
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = lerp_2d(xw, yw,
+ tx0[c], tx1[c],
+ tx2[c], tx3[c]);
}
static void
img_filter_cube_linear(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float *rgba)
{
- const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- const struct pipe_resource *texture = samp->texture;
- const unsigned *faces = samp->faces; /* zero when not cube-mapping */
- unsigned level0, j;
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
int width, height;
- int x0[4], y0[4], x1[4], y1[4];
- float xw[4], yw[4]; /* weights */
- union tex_tile_address addr;
+ int x0, y0, x1, y1;
+ float xw, yw; /* weights */
+ union tex_tile_address addr, addrj;
+ const float *tx0, *tx1, *tx2, *tx3;
+ float corner0[TGSI_QUAD_SIZE], corner1[TGSI_QUAD_SIZE], corner2[TGSI_QUAD_SIZE], corner3[TGSI_QUAD_SIZE];
+ int c;
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
+ width = u_minify(texture->width0, level);
+ height = u_minify(texture->height0, level);
assert(width > 0);
assert(height > 0);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = level;
- samp->linear_texcoord_s(s, width, x0, x1, xw);
- samp->linear_texcoord_t(t, height, y0, y1, yw);
+ /*
+ * For seamless if LINEAR filtering is done within a miplevel,
+ * always apply wrap mode CLAMP_TO_BORDER.
+ */
+ if (samp->sampler->seamless_cube_map) {
+ wrap_linear_clamp_to_border(s, width, &x0, &x1, &xw);
+ wrap_linear_clamp_to_border(t, height, &y0, &y1, &yw);
+ } else {
+ samp->linear_texcoord_s(s, width, &x0, &x1, &xw);
+ samp->linear_texcoord_t(t, height, &y0, &y1, &yw);
+ }
- for (j = 0; j < QUAD_SIZE; j++) {
- union tex_tile_address addrj = face(addr, faces[j]);
- const float *tx0 = get_texel_2d(samp, addrj, x0[j], y0[j]);
- const float *tx1 = get_texel_2d(samp, addrj, x1[j], y0[j]);
- const float *tx2 = get_texel_2d(samp, addrj, x0[j], y1[j]);
- const float *tx3 = get_texel_2d(samp, addrj, x1[j], y1[j]);
- int c;
+ addrj = face(addr, face_id);
- /* interpolate R, G, B, A */
- for (c = 0; c < 4; c++) {
- rgba[c][j] = lerp_2d(xw[j], yw[j],
- tx0[c], tx1[c],
- tx2[c], tx3[c]);
- }
+ if (samp->sampler->seamless_cube_map) {
+ tx0 = get_texel_cube_seamless(samp, addrj, x0, y0, corner0);
+ tx1 = get_texel_cube_seamless(samp, addrj, x1, y0, corner1);
+ tx2 = get_texel_cube_seamless(samp, addrj, x0, y1, corner2);
+ tx3 = get_texel_cube_seamless(samp, addrj, x1, y1, corner3);
+ } else {
+ tx0 = get_texel_2d(samp, addrj, x0, y0);
+ tx1 = get_texel_2d(samp, addrj, x1, y0);
+ tx2 = get_texel_2d(samp, addrj, x0, y1);
+ tx3 = get_texel_2d(samp, addrj, x1, y1);
}
+ /* interpolate R, G, B, A */
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = lerp_2d(xw, yw,
+ tx0[c], tx1[c],
+ tx2[c], tx3[c]);
}
+static void
+img_filter_cube_array_linear(struct tgsi_sampler *tgsi_sampler,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ enum tgsi_sampler_control control,
+ float *rgba)
+{
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
+ int width, height;
+ int x0, y0, x1, y1, layer;
+ float xw, yw; /* weights */
+ union tex_tile_address addr;
+ const float *tx0, *tx1, *tx2, *tx3;
+ int c;
+
+ width = u_minify(texture->width0, level);
+ height = u_minify(texture->height0, level);
+
+ assert(width > 0);
+ assert(height > 0);
+
+ addr.value = 0;
+ addr.bits.level = level;
+
+ samp->linear_texcoord_s(s, width, &x0, &x1, &xw);
+ samp->linear_texcoord_t(t, height, &y0, &y1, &yw);
+ wrap_array_layer(p, texture->array_size, &layer);
+
+ tx0 = get_texel_cube_array(samp, addr, x0, y0, layer * 6 + face_id);
+ tx1 = get_texel_cube_array(samp, addr, x1, y0, layer * 6 + face_id);
+ tx2 = get_texel_cube_array(samp, addr, x0, y1, layer * 6 + face_id);
+ tx3 = get_texel_cube_array(samp, addr, x1, y1, layer * 6 + face_id);
+
+ /* interpolate R, G, B, A */
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = lerp_2d(xw, yw,
+ tx0[c], tx1[c],
+ tx2[c], tx3[c]);
+}
+
static void
img_filter_3d_linear(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float *rgba)
{
- const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- const struct pipe_resource *texture = samp->texture;
- unsigned level0, j;
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
int width, height, depth;
- int x0[4], x1[4], y0[4], y1[4], z0[4], z1[4];
- float xw[4], yw[4], zw[4]; /* interpolation weights */
+ int x0, x1, y0, y1, z0, z1;
+ float xw, yw, zw; /* interpolation weights */
union tex_tile_address addr;
+ const float *tx00, *tx01, *tx02, *tx03, *tx10, *tx11, *tx12, *tx13;
+ int c;
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
- depth = u_minify(texture->depth0, level0);
+ width = u_minify(texture->width0, level);
+ height = u_minify(texture->height0, level);
+ depth = u_minify(texture->depth0, level);
addr.value = 0;
- addr.bits.level = level0;
+ addr.bits.level = level;
assert(width > 0);
assert(height > 0);
assert(depth > 0);
- samp->linear_texcoord_s(s, width, x0, x1, xw);
- samp->linear_texcoord_t(t, height, y0, y1, yw);
- samp->linear_texcoord_p(p, depth, z0, z1, zw);
+ samp->linear_texcoord_s(s, width, &x0, &x1, &xw);
+ samp->linear_texcoord_t(t, height, &y0, &y1, &yw);
+ samp->linear_texcoord_p(p, depth, &z0, &z1, &zw);
- for (j = 0; j < QUAD_SIZE; j++) {
- int c;
- const float *tx00 = get_texel_3d(samp, addr, x0[j], y0[j], z0[j]);
- const float *tx01 = get_texel_3d(samp, addr, x1[j], y0[j], z0[j]);
- const float *tx02 = get_texel_3d(samp, addr, x0[j], y1[j], z0[j]);
- const float *tx03 = get_texel_3d(samp, addr, x1[j], y1[j], z0[j]);
+ tx00 = get_texel_3d(samp, addr, x0, y0, z0);
+ tx01 = get_texel_3d(samp, addr, x1, y0, z0);
+ tx02 = get_texel_3d(samp, addr, x0, y1, z0);
+ tx03 = get_texel_3d(samp, addr, x1, y1, z0);
- const float *tx10 = get_texel_3d(samp, addr, x0[j], y0[j], z1[j]);
- const float *tx11 = get_texel_3d(samp, addr, x1[j], y0[j], z1[j]);
- const float *tx12 = get_texel_3d(samp, addr, x0[j], y1[j], z1[j]);
- const float *tx13 = get_texel_3d(samp, addr, x1[j], y1[j], z1[j]);
+ tx10 = get_texel_3d(samp, addr, x0, y0, z1);
+ tx11 = get_texel_3d(samp, addr, x1, y0, z1);
+ tx12 = get_texel_3d(samp, addr, x0, y1, z1);
+ tx13 = get_texel_3d(samp, addr, x1, y1, z1);
/* interpolate R, G, B, A */
- for (c = 0; c < 4; c++) {
- rgba[c][j] = lerp_3d(xw[j], yw[j], zw[j],
- tx00[c], tx01[c],
- tx02[c], tx03[c],
- tx10[c], tx11[c],
- tx12[c], tx13[c]);
- }
- }
+ for (c = 0; c < TGSI_QUAD_SIZE; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = lerp_3d(xw, yw, zw,
+ tx00[c], tx01[c],
+ tx02[c], tx03[c],
+ tx10[c], tx11[c],
+ tx12[c], tx13[c]);
}
static INLINE void
compute_lod(const struct pipe_sampler_state *sampler,
const float biased_lambda,
- const float lodbias[QUAD_SIZE],
- float lod[QUAD_SIZE])
+ const float lodbias[TGSI_QUAD_SIZE],
+ float lod[TGSI_QUAD_SIZE])
{
uint i;
- for (i = 0; i < QUAD_SIZE; i++) {
+ for (i = 0; i < TGSI_QUAD_SIZE; i++) {
lod[i] = biased_lambda + lodbias[i];
lod[i] = CLAMP(lod[i], sampler->min_lod, sampler->max_lod);
}
static void
mip_filter_linear(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ const float c0[TGSI_QUAD_SIZE],
+ const float c1[TGSI_QUAD_SIZE],
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
{
- struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- const struct pipe_resource *texture = samp->texture;
- int level0;
- float lambda;
- float lod[QUAD_SIZE];
+ struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
+ int j;
+ float lod[TGSI_QUAD_SIZE];
if (control == tgsi_sampler_lod_bias) {
- lambda = samp->compute_lambda(samp, s, t, p) + samp->sampler->lod_bias;
- compute_lod(samp->sampler, lambda, c0, lod);
+ float lambda = samp->compute_lambda(samp, s, t, p) + samp->sampler->lod_bias;
+ if (samp->key.bits.target == PIPE_TEXTURE_CUBE_ARRAY)
+ compute_lod(samp->sampler, lambda, c1, lod);
+ else
+ compute_lod(samp->sampler, lambda, c0, lod);
} else {
assert(control == tgsi_sampler_lod_explicit);
- memcpy(lod, c0, sizeof(lod));
+ if (samp->key.bits.target == PIPE_TEXTURE_CUBE_ARRAY)
+ memcpy(lod, c1, sizeof(lod));
+ else
+ memcpy(lod, c0, sizeof(lod));
+
}
- /* XXX: Take into account all lod values.
- */
- lambda = lod[0];
- level0 = (int)lambda;
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ int level0 = samp->view->u.tex.first_level + (int)lod[j];
- if (lambda < 0.0) {
- samp->level = 0;
- samp->mag_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba);
- }
- else if (level0 >= texture->last_level) {
- samp->level = texture->last_level;
- samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba);
- }
- else {
- float levelBlend = lambda - level0;
- float rgba0[4][4];
- float rgba1[4][4];
- int c,j;
+ if (lod[j] < 0.0)
+ samp->mag_img_filter(tgsi_sampler, s[j], t[j], p[j], samp->view->u.tex.first_level, samp->faces[j], tgsi_sampler_lod_bias, &rgba[0][j]);
+
+ else if (level0 >= texture->last_level)
+ samp->min_img_filter(tgsi_sampler, s[j], t[j], p[j], texture->last_level, samp->faces[j], tgsi_sampler_lod_bias, &rgba[0][j]);
- samp->level = level0;
- samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba0);
+ else {
+ float levelBlend = frac(lod[j]);
+ float rgbax[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE];
+ int c;
- samp->level = level0+1;
- samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba1);
+ samp->min_img_filter(tgsi_sampler, s[j], t[j], p[j], level0, samp->faces[j], tgsi_sampler_lod_bias, &rgbax[0][0]);
+ samp->min_img_filter(tgsi_sampler, s[j], t[j], p[j], level0+1, samp->faces[j], tgsi_sampler_lod_bias, &rgbax[0][1]);
- for (j = 0; j < QUAD_SIZE; j++) {
for (c = 0; c < 4; c++) {
- rgba[c][j] = lerp(levelBlend, rgba0[c][j], rgba1[c][j]);
+ rgba[c][j] = lerp(levelBlend, rgbax[c][0], rgbax[c][1]);
}
}
}
+
+ if (DEBUG_TEX) {
+ print_sample_4(__FUNCTION__, rgba);
+ }
}
*/
static void
mip_filter_nearest(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ const float c0[TGSI_QUAD_SIZE],
+ const float c1[TGSI_QUAD_SIZE],
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
{
- struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- const struct pipe_resource *texture = samp->texture;
- float lambda;
- float lod[QUAD_SIZE];
+ struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
+ float lod[TGSI_QUAD_SIZE];
+ int j;
if (control == tgsi_sampler_lod_bias) {
- lambda = samp->compute_lambda(samp, s, t, p) + samp->sampler->lod_bias;
- compute_lod(samp->sampler, lambda, c0, lod);
+ float lambda = samp->compute_lambda(samp, s, t, p) + samp->sampler->lod_bias;
+ if (samp->key.bits.target == PIPE_TEXTURE_CUBE_ARRAY)
+ compute_lod(samp->sampler, lambda, c1, lod);
+ else
+ compute_lod(samp->sampler, lambda, c0, lod);
} else {
assert(control == tgsi_sampler_lod_explicit);
- memcpy(lod, c0, sizeof(lod));
+ if (samp->key.bits.target == PIPE_TEXTURE_CUBE_ARRAY)
+ memcpy(lod, c1, sizeof(lod));
+ else
+ memcpy(lod, c0, sizeof(lod));
}
- /* XXX: Take into account all lod values.
- */
- lambda = lod[0];
-
- if (lambda < 0.0) {
- samp->level = 0;
- samp->mag_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba);
- }
- else {
- samp->level = (int)(lambda + 0.5) ;
- samp->level = MIN2(samp->level, (int)texture->last_level);
- samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba);
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ if (lod[j] < 0.0)
+ samp->mag_img_filter(tgsi_sampler, s[j], t[j], p[j], samp->view->u.tex.first_level, samp->faces[j], tgsi_sampler_lod_bias, &rgba[0][j]);
+ else {
+ float level = samp->view->u.tex.first_level + (int)(lod[j] + 0.5F) ;
+ level = MIN2(level, (int)texture->last_level);
+ samp->min_img_filter(tgsi_sampler, s[j], t[j], p[j], level, samp->faces[j], tgsi_sampler_lod_bias, &rgba[0][j]);
+ }
}
-#if 0
- printf("RGBA %g %g %g %g, %g %g %g %g, %g %g %g %g, %g %g %g %g\n",
- rgba[0][0], rgba[1][0], rgba[2][0], rgba[3][0],
- rgba[0][1], rgba[1][1], rgba[2][1], rgba[3][1],
- rgba[0][2], rgba[1][2], rgba[2][2], rgba[3][2],
- rgba[0][3], rgba[1][3], rgba[2][3], rgba[3][3]);
-#endif
+ if (DEBUG_TEX) {
+ print_sample_4(__FUNCTION__, rgba);
+ }
}
static void
mip_filter_none(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ const float c0[TGSI_QUAD_SIZE],
+ const float c1[TGSI_QUAD_SIZE],
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
{
- struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- float lambda;
- float lod[QUAD_SIZE];
+ struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ float lod[TGSI_QUAD_SIZE];
+ int j;
if (control == tgsi_sampler_lod_bias) {
- lambda = samp->compute_lambda(samp, s, t, p) + samp->sampler->lod_bias;
- compute_lod(samp->sampler, lambda, c0, lod);
+ float lambda = samp->compute_lambda(samp, s, t, p) + samp->sampler->lod_bias;
+ if (samp->key.bits.target == PIPE_TEXTURE_CUBE_ARRAY)
+ compute_lod(samp->sampler, lambda, c1, lod);
+ else
+ compute_lod(samp->sampler, lambda, c0, lod);
} else {
assert(control == tgsi_sampler_lod_explicit);
- memcpy(lod, c0, sizeof(lod));
+ if (samp->key.bits.target == PIPE_TEXTURE_CUBE_ARRAY)
+ memcpy(lod, c1, sizeof(lod));
+ else
+ memcpy(lod, c0, sizeof(lod));
}
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ if (lod[j] < 0.0) {
+ samp->mag_img_filter(tgsi_sampler, s[j], t[j], p[j], samp->view->u.tex.first_level, samp->faces[j], tgsi_sampler_lod_bias, &rgba[0][j]);
+ }
+ else {
+ samp->min_img_filter(tgsi_sampler, s[j], t[j], p[j], samp->view->u.tex.first_level, samp->faces[j], tgsi_sampler_lod_bias, &rgba[0][j]);
+ }
+ }
+}
+
+
+static void
+mip_filter_none_no_filter_select(struct tgsi_sampler *tgsi_sampler,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ const float c0[TGSI_QUAD_SIZE],
+ const float c1[TGSI_QUAD_SIZE],
+ enum tgsi_sampler_control control,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ int j;
+
+ for (j = 0; j < TGSI_QUAD_SIZE; j++)
+ samp->mag_img_filter(tgsi_sampler, s[j], t[j], p[j], samp->view->u.tex.first_level, samp->faces[j], tgsi_sampler_lod_bias, &rgba[0][j]);
+}
+
+
+/* For anisotropic filtering */
+#define WEIGHT_LUT_SIZE 1024
+
+static float *weightLut = NULL;
+
+/**
+ * Creates the look-up table used to speed-up EWA sampling
+ */
+static void
+create_filter_table(void)
+{
+ unsigned i;
+ if (!weightLut) {
+ weightLut = (float *) MALLOC(WEIGHT_LUT_SIZE * sizeof(float));
+
+ for (i = 0; i < WEIGHT_LUT_SIZE; ++i) {
+ float alpha = 2;
+ float r2 = (float) i / (float) (WEIGHT_LUT_SIZE - 1);
+ float weight = (float) exp(-alpha * r2);
+ weightLut[i] = weight;
+ }
+ }
+}
+
+
+/**
+ * Elliptical weighted average (EWA) filter for producing high quality
+ * anisotropic filtered results.
+ * Based on the Higher Quality Elliptical Weighted Average Filter
+ * published by Paul S. Heckbert in his Master's Thesis
+ * "Fundamentals of Texture Mapping and Image Warping" (1989)
+ */
+static void
+img_filter_2d_ewa(struct tgsi_sampler *tgsi_sampler,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ unsigned level,
+ enum tgsi_sampler_control control,
+ const float dudx, const float dvdx,
+ const float dudy, const float dvdy,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
+
+ // ??? Won't the image filters blow up if level is negative?
+ unsigned level0 = level > 0 ? level : 0;
+ float scaling = 1.0 / (1 << level0);
+ int width = u_minify(texture->width0, level0);
+ int height = u_minify(texture->height0, level0);
+
+ float ux = dudx * scaling;
+ float vx = dvdx * scaling;
+ float uy = dudy * scaling;
+ float vy = dvdy * scaling;
+
+ /* compute ellipse coefficients to bound the region:
+ * A*x*x + B*x*y + C*y*y = F.
+ */
+ float A = vx*vx+vy*vy+1;
+ float B = -2*(ux*vx+uy*vy);
+ float C = ux*ux+uy*uy+1;
+ float F = A*C-B*B/4.0;
+
+ /* check if it is an ellipse */
+ /* ASSERT(F > 0.0); */
+
+ /* Compute the ellipse's (u,v) bounding box in texture space */
+ float d = -B*B+4.0*C*A;
+ float box_u = 2.0 / d * sqrt(d*C*F); /* box_u -> half of bbox with */
+ float box_v = 2.0 / d * sqrt(A*d*F); /* box_v -> half of bbox height */
+
+ float rgba_temp[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE];
+ float s_buffer[TGSI_QUAD_SIZE];
+ float t_buffer[TGSI_QUAD_SIZE];
+ float weight_buffer[TGSI_QUAD_SIZE];
+ unsigned buffer_next;
+ int j;
+ float den; /* = 0.0F; */
+ float ddq;
+ float U; /* = u0 - tex_u; */
+ int v;
+
+ /* Scale ellipse formula to directly index the Filter Lookup Table.
+ * i.e. scale so that F = WEIGHT_LUT_SIZE-1
+ */
+ double formScale = (double) (WEIGHT_LUT_SIZE - 1) / F;
+ A *= formScale;
+ B *= formScale;
+ C *= formScale;
+ /* F *= formScale; */ /* no need to scale F as we don't use it below here */
+
+ /* For each quad, the du and dx values are the same and so the ellipse is
+ * also the same. Note that texel/image access can only be performed using
+ * a quad, i.e. it is not possible to get the pixel value for a single
+ * tex coord. In order to have a better performance, the access is buffered
+ * using the s_buffer/t_buffer and weight_buffer. Only when the buffer is
+ * full, then the pixel values are read from the image.
+ */
+ ddq = 2 * A;
+
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ /* Heckbert MS thesis, p. 59; scan over the bounding box of the ellipse
+ * and incrementally update the value of Ax^2+Bxy*Cy^2; when this
+ * value, q, is less than F, we're inside the ellipse
+ */
+ float tex_u = -0.5F + s[j] * texture->width0 * scaling;
+ float tex_v = -0.5F + t[j] * texture->height0 * scaling;
+
+ int u0 = (int) floorf(tex_u - box_u);
+ int u1 = (int) ceilf(tex_u + box_u);
+ int v0 = (int) floorf(tex_v - box_v);
+ int v1 = (int) ceilf(tex_v + box_v);
+
+ float num[4] = {0.0F, 0.0F, 0.0F, 0.0F};
+ buffer_next = 0;
+ den = 0;
+ U = u0 - tex_u;
+ for (v = v0; v <= v1; ++v) {
+ float V = v - tex_v;
+ float dq = A * (2 * U + 1) + B * V;
+ float q = (C * V + B * U) * V + A * U * U;
+
+ int u;
+ for (u = u0; u <= u1; ++u) {
+ /* Note that the ellipse has been pre-scaled so F =
+ * WEIGHT_LUT_SIZE - 1
+ */
+ if (q < WEIGHT_LUT_SIZE) {
+ /* as a LUT is used, q must never be negative;
+ * should not happen, though
+ */
+ const int qClamped = q >= 0.0F ? q : 0;
+ float weight = weightLut[qClamped];
+
+ weight_buffer[buffer_next] = weight;
+ s_buffer[buffer_next] = u / ((float) width);
+ t_buffer[buffer_next] = v / ((float) height);
+
+ buffer_next++;
+ if (buffer_next == TGSI_QUAD_SIZE) {
+ /* 4 texel coords are in the buffer -> read it now */
+ unsigned jj;
+ /* it is assumed that samp->min_img_filter is set to
+ * img_filter_2d_nearest or one of the
+ * accelerated img_filter_2d_nearest_XXX functions.
+ */
+ for (jj = 0; jj < buffer_next; jj++) {
+ samp->min_img_filter(tgsi_sampler, s_buffer[jj], t_buffer[jj], p[jj], level, samp->faces[j],
+ tgsi_sampler_lod_bias, &rgba_temp[0][jj]);
+ num[0] += weight_buffer[jj] * rgba_temp[0][jj];
+ num[1] += weight_buffer[jj] * rgba_temp[1][jj];
+ num[2] += weight_buffer[jj] * rgba_temp[2][jj];
+ num[3] += weight_buffer[jj] * rgba_temp[3][jj];
+ }
+
+ buffer_next = 0;
+ }
+
+ den += weight;
+ }
+ q += dq;
+ dq += ddq;
+ }
+ }
+
+ /* if the tex coord buffer contains unread values, we will read
+ * them now.
+ */
+ if (buffer_next > 0) {
+ unsigned jj;
+ /* it is assumed that samp->min_img_filter is set to
+ * img_filter_2d_nearest or one of the
+ * accelerated img_filter_2d_nearest_XXX functions.
+ */
+ for (jj = 0; jj < buffer_next; jj++) {
+ samp->min_img_filter(tgsi_sampler, s_buffer[jj], t_buffer[jj], p[jj], level, samp->faces[j],
+ tgsi_sampler_lod_bias, &rgba_temp[0][jj]);
+ num[0] += weight_buffer[jj] * rgba_temp[0][jj];
+ num[1] += weight_buffer[jj] * rgba_temp[1][jj];
+ num[2] += weight_buffer[jj] * rgba_temp[2][jj];
+ num[3] += weight_buffer[jj] * rgba_temp[3][jj];
+ }
+ }
+
+ if (den <= 0.0F) {
+ /* Reaching this place would mean that no pixels intersected
+ * the ellipse. This should never happen because the filter
+ * we use always intersects at least one pixel.
+ */
+
+ /*rgba[0]=0;
+ rgba[1]=0;
+ rgba[2]=0;
+ rgba[3]=0;*/
+ /* not enough pixels in resampling, resort to direct interpolation */
+ samp->min_img_filter(tgsi_sampler, s[j], t[j], p[j], level, samp->faces[j],
+ tgsi_sampler_lod_bias, &rgba_temp[0][j]);
+ den = 1;
+ num[0] = rgba_temp[0][j];
+ num[1] = rgba_temp[1][j];
+ num[2] = rgba_temp[2][j];
+ num[3] = rgba_temp[3][j];
+ }
+
+ rgba[0][j] = num[0] / den;
+ rgba[1][j] = num[1] / den;
+ rgba[2][j] = num[2] / den;
+ rgba[3][j] = num[3] / den;
+ }
+}
+
+
+/**
+ * Sample 2D texture using an anisotropic filter.
+ */
+static void
+mip_filter_linear_aniso(struct tgsi_sampler *tgsi_sampler,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ const float c0[TGSI_QUAD_SIZE],
+ const float c1[TGSI_QUAD_SIZE],
+ enum tgsi_sampler_control control,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
+ int level0;
+ float lambda;
+ float lod[TGSI_QUAD_SIZE];
+
+ float s_to_u = u_minify(texture->width0, samp->view->u.tex.first_level);
+ float t_to_v = u_minify(texture->height0, samp->view->u.tex.first_level);
+ float dudx = (s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]) * s_to_u;
+ float dudy = (s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]) * s_to_u;
+ float dvdx = (t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]) * t_to_v;
+ float dvdy = (t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]) * t_to_v;
+
+ if (control == tgsi_sampler_lod_bias) {
+ /* note: instead of working with Px and Py, we will use the
+ * squared length instead, to avoid sqrt.
+ */
+ float Px2 = dudx * dudx + dvdx * dvdx;
+ float Py2 = dudy * dudy + dvdy * dvdy;
+
+ float Pmax2;
+ float Pmin2;
+ float e;
+ const float maxEccentricity = samp->sampler->max_anisotropy * samp->sampler->max_anisotropy;
+
+ if (Px2 < Py2) {
+ Pmax2 = Py2;
+ Pmin2 = Px2;
+ }
+ else {
+ 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
+ */
+ e = Pmax2 / Pmin2;
+ if (e > maxEccentricity) {
+ /* float s=e / maxEccentricity;
+ minor[0] *= s;
+ minor[1] *= s;
+ 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))
+ */
+ lambda = 0.5F * util_fast_log2(Pmin2) + samp->sampler->lod_bias;
+ compute_lod(samp->sampler, lambda, c0, lod);
+ }
+ else {
+ assert(control == tgsi_sampler_lod_explicit);
+
+ memcpy(lod, c0, sizeof(lod));
+ }
+
/* XXX: Take into account all lod values.
*/
lambda = lod[0];
+ level0 = samp->view->u.tex.first_level + (int)lambda;
- if (lambda < 0.0) {
- samp->mag_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba);
+ /* If the ellipse covers the whole image, we can
+ * simply return the average of the whole image.
+ */
+ if (level0 >= (int) texture->last_level) {
+ int j;
+ for (j = 0; j < TGSI_QUAD_SIZE; j++)
+ samp->min_img_filter(tgsi_sampler, s[j], t[j], p[j], texture->last_level, samp->faces[j], tgsi_sampler_lod_bias, &rgba[0][j]);
}
else {
- samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba);
+ /* don't bother interpolating between multiple LODs; it doesn't
+ * seem to be worth the extra running time.
+ */
+ img_filter_2d_ewa(tgsi_sampler, s, t, p, level0, tgsi_sampler_lod_bias,
+ dudx, dvdx, dudy, dvdy, rgba);
}
-}
+ if (DEBUG_TEX) {
+ print_sample_4(__FUNCTION__, rgba);
+ }
+}
/**
static void
mip_filter_linear_2d_linear_repeat_POT(
struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ const float c0[TGSI_QUAD_SIZE],
+ const float c1[TGSI_QUAD_SIZE],
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
{
- struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- const struct pipe_resource *texture = samp->texture;
- int level0;
+ struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_resource *texture = samp->view->texture;
+ int j;
float lambda;
- float lod[QUAD_SIZE];
+ float lod[TGSI_QUAD_SIZE];
if (control == tgsi_sampler_lod_bias) {
lambda = samp->compute_lambda(samp, s, t, p) + samp->sampler->lod_bias;
memcpy(lod, c0, sizeof(lod));
}
- /* XXX: Take into account all lod values.
- */
- lambda = lod[0];
- level0 = (int)lambda;
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ int level0 = samp->view->u.tex.first_level + (int)lod[j];
- /* Catches both negative and large values of level0:
- */
- if ((unsigned)level0 >= texture->last_level) {
- if (level0 < 0)
- samp->level = 0;
- else
- samp->level = texture->last_level;
-
- img_filter_2d_linear_repeat_POT(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba);
- }
- else {
- float levelBlend = lambda - level0;
- float rgba0[4][4];
- float rgba1[4][4];
- int c,j;
+ /* Catches both negative and large values of level0:
+ */
+ if ((unsigned)level0 >= texture->last_level) {
+ if (level0 < 0)
+ img_filter_2d_linear_repeat_POT(tgsi_sampler, s[j], t[j], p[j], samp->view->u.tex.first_level, samp->faces[j], tgsi_sampler_lod_bias, &rgba[0][j]);
+ else
+ img_filter_2d_linear_repeat_POT(tgsi_sampler, s[j], t[j], p[j], samp->view->texture->last_level, samp->faces[j], tgsi_sampler_lod_bias, &rgba[0][j]);
- samp->level = level0;
- img_filter_2d_linear_repeat_POT(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba0);
+ }
+ else {
+ float levelBlend = frac(lod[j]);
+ float rgbax[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE];
+ int c;
- samp->level = level0+1;
- img_filter_2d_linear_repeat_POT(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba1);
+ img_filter_2d_linear_repeat_POT(tgsi_sampler, s[j], t[j], p[j], level0, samp->faces[j], tgsi_sampler_lod_bias, &rgbax[0][0]);
+ img_filter_2d_linear_repeat_POT(tgsi_sampler, s[j], t[j], p[j], level0+1, samp->faces[j], tgsi_sampler_lod_bias, &rgbax[0][1]);
- for (j = 0; j < QUAD_SIZE; j++) {
- for (c = 0; c < 4; c++) {
- rgba[c][j] = lerp(levelBlend, rgba0[c][j], rgba1[c][j]);
- }
+ for (c = 0; c < TGSI_NUM_CHANNELS; c++)
+ rgba[c][j] = lerp(levelBlend, rgbax[c][0], rgbax[c][1]);
}
}
-}
+ if (DEBUG_TEX) {
+ print_sample_4(__FUNCTION__, rgba);
+ }
+}
/**
*/
static void
sample_compare(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ const float c0[TGSI_QUAD_SIZE],
+ const float c1[TGSI_QUAD_SIZE],
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
{
- struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
+ struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
const struct pipe_sampler_state *sampler = samp->sampler;
int j, k0, k1, k2, k3;
float val;
+ float pc0, pc1, pc2, pc3;
- samp->mip_filter(tgsi_sampler, s, t, p, c0, control, rgba);
+ samp->mip_filter(tgsi_sampler, s, t, p, c0, c1, control, rgba);
/**
* Compare texcoord 'p' (aka R) against texture value 'rgba[0]'
+ * for 2D Array texture we need to use the 'c0' (aka Q).
* When we sampled the depth texture, the depth value was put into all
* RGBA channels. We look at the red channel here.
*/
+ if (samp->view->texture->target == PIPE_TEXTURE_2D_ARRAY ||
+ samp->view->texture->target == PIPE_TEXTURE_CUBE) {
+ pc0 = CLAMP(c0[0], 0.0F, 1.0F);
+ pc1 = CLAMP(c0[1], 0.0F, 1.0F);
+ pc2 = CLAMP(c0[2], 0.0F, 1.0F);
+ pc3 = CLAMP(c0[3], 0.0F, 1.0F);
+ } else if (samp->view->texture->target == PIPE_TEXTURE_CUBE_ARRAY) {
+ pc0 = CLAMP(c1[0], 0.0F, 1.0F);
+ pc1 = CLAMP(c1[1], 0.0F, 1.0F);
+ pc2 = CLAMP(c1[2], 0.0F, 1.0F);
+ pc3 = CLAMP(c1[3], 0.0F, 1.0F);
+ } else {
+ pc0 = CLAMP(p[0], 0.0F, 1.0F);
+ pc1 = CLAMP(p[1], 0.0F, 1.0F);
+ pc2 = CLAMP(p[2], 0.0F, 1.0F);
+ pc3 = CLAMP(p[3], 0.0F, 1.0F);
+ }
/* compare four texcoords vs. four texture samples */
switch (sampler->compare_func) {
case PIPE_FUNC_LESS:
- k0 = p[0] < rgba[0][0];
- k1 = p[1] < rgba[0][1];
- k2 = p[2] < rgba[0][2];
- k3 = p[3] < rgba[0][3];
+ k0 = pc0 < rgba[0][0];
+ k1 = pc1 < rgba[0][1];
+ k2 = pc2 < rgba[0][2];
+ k3 = pc3 < rgba[0][3];
break;
case PIPE_FUNC_LEQUAL:
- k0 = p[0] <= rgba[0][0];
- k1 = p[1] <= rgba[0][1];
- k2 = p[2] <= rgba[0][2];
- k3 = p[3] <= rgba[0][3];
+ k0 = pc0 <= rgba[0][0];
+ k1 = pc1 <= rgba[0][1];
+ k2 = pc2 <= rgba[0][2];
+ k3 = pc3 <= rgba[0][3];
break;
case PIPE_FUNC_GREATER:
- k0 = p[0] > rgba[0][0];
- k1 = p[1] > rgba[0][1];
- k2 = p[2] > rgba[0][2];
- k3 = p[3] > rgba[0][3];
+ k0 = pc0 > rgba[0][0];
+ k1 = pc1 > rgba[0][1];
+ k2 = pc2 > rgba[0][2];
+ k3 = pc3 > rgba[0][3];
break;
case PIPE_FUNC_GEQUAL:
- k0 = p[0] >= rgba[0][0];
- k1 = p[1] >= rgba[0][1];
- k2 = p[2] >= rgba[0][2];
- k3 = p[3] >= rgba[0][3];
+ k0 = pc0 >= rgba[0][0];
+ k1 = pc1 >= rgba[0][1];
+ k2 = pc2 >= rgba[0][2];
+ k3 = pc3 >= rgba[0][3];
break;
case PIPE_FUNC_EQUAL:
- k0 = p[0] == rgba[0][0];
- k1 = p[1] == rgba[0][1];
- k2 = p[2] == rgba[0][2];
- k3 = p[3] == rgba[0][3];
+ k0 = pc0 == rgba[0][0];
+ k1 = pc1 == rgba[0][1];
+ k2 = pc2 == rgba[0][2];
+ k3 = pc3 == rgba[0][3];
break;
case PIPE_FUNC_NOTEQUAL:
- k0 = p[0] != rgba[0][0];
- k1 = p[1] != rgba[0][1];
- k2 = p[2] != rgba[0][2];
- k3 = p[3] != rgba[0][3];
+ k0 = pc0 != rgba[0][0];
+ k1 = pc1 != rgba[0][1];
+ k2 = pc2 != rgba[0][2];
+ k3 = pc3 != rgba[0][3];
break;
case PIPE_FUNC_ALWAYS:
k0 = k1 = k2 = k3 = 1;
break;
}
- /* convert four pass/fail values to an intensity in [0,1] */
- val = 0.25F * (k0 + k1 + k2 + k3);
+ if (sampler->mag_img_filter == PIPE_TEX_FILTER_LINEAR) {
+ /* convert four pass/fail values to an intensity in [0,1] */
+ val = 0.25F * (k0 + k1 + k2 + k3);
- /* XXX returning result for default GL_DEPTH_TEXTURE_MODE = GL_LUMINANCE */
- for (j = 0; j < 4; j++) {
- rgba[0][j] = rgba[1][j] = rgba[2][j] = val;
- rgba[3][j] = 1.0F;
+ /* XXX returning result for default GL_DEPTH_TEXTURE_MODE = GL_LUMINANCE */
+ for (j = 0; j < 4; j++) {
+ rgba[0][j] = rgba[1][j] = rgba[2][j] = val;
+ rgba[3][j] = 1.0F;
+ }
+ } else {
+ for (j = 0; j < 4; j++) {
+ rgba[0][j] = k0;
+ rgba[1][j] = k1;
+ rgba[2][j] = k2;
+ rgba[3][j] = 1.0F;
+ }
}
}
*/
static void
sample_cube(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ const float c0[TGSI_QUAD_SIZE],
+ const float c1[TGSI_QUAD_SIZE],
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
{
- struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
+ struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
unsigned j;
float ssss[4], tttt[4];
+ /* Not actually used, but the intermediate steps that do the
+ * dereferencing don't know it.
+ */
+ static float pppp[4] = { 0, 0, 0, 0 };
+
+ pppp[0] = c0[0];
+ pppp[1] = c0[1];
+ pppp[2] = c0[2];
+ pppp[3] = c0[3];
/*
major axis
direction target sc tc ma
*/
{
/* use the average of the four pixel's texcoords to choose the face */
- const float rx = 0.25 * (s[0] + s[1] + s[2] + s[3]);
- const float ry = 0.25 * (t[0] + t[1] + t[2] + t[3]);
- const float rz = 0.25 * (p[0] + p[1] + p[2] + p[3]);
+ const float rx = 0.25F * (s[0] + s[1] + s[2] + s[3]);
+ const float ry = 0.25F * (t[0] + t[1] + t[2] + t[3]);
+ const float rz = 0.25F * (p[0] + p[1] + p[2] + p[3]);
const float arx = fabsf(rx), ary = fabsf(ry), arz = fabsf(rz);
if (arx >= ary && arx >= arz) {
float sign = (rx >= 0.0F) ? 1.0F : -1.0F;
uint face = (rx >= 0.0F) ? PIPE_TEX_FACE_POS_X : PIPE_TEX_FACE_NEG_X;
- for (j = 0; j < QUAD_SIZE; j++) {
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
const float ima = -0.5F / fabsf(s[j]);
ssss[j] = sign * p[j] * ima + 0.5F;
tttt[j] = t[j] * ima + 0.5F;
else if (ary >= arx && ary >= arz) {
float sign = (ry >= 0.0F) ? 1.0F : -1.0F;
uint face = (ry >= 0.0F) ? PIPE_TEX_FACE_POS_Y : PIPE_TEX_FACE_NEG_Y;
- for (j = 0; j < QUAD_SIZE; j++) {
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
const float ima = -0.5F / fabsf(t[j]);
ssss[j] = -s[j] * ima + 0.5F;
tttt[j] = sign * -p[j] * ima + 0.5F;
else {
float sign = (rz >= 0.0F) ? 1.0F : -1.0F;
uint face = (rz >= 0.0F) ? PIPE_TEX_FACE_POS_Z : PIPE_TEX_FACE_NEG_Z;
- for (j = 0; j < QUAD_SIZE; j++) {
- const float ima = -0.5 / fabsf(p[j]);
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ const float ima = -0.5F / fabsf(p[j]);
ssss[j] = sign * -s[j] * ima + 0.5F;
tttt[j] = t[j] * ima + 0.5F;
samp->faces[j] = face;
* is not active, this will point somewhere deeper into the
* pipeline, eg. to mip_filter or even img_filter.
*/
- samp->compare(tgsi_sampler, ssss, tttt, NULL, c0, control, rgba);
+ samp->compare(tgsi_sampler, ssss, tttt, pppp, c0, c1, control, rgba);
+}
+
+
+static void
+do_swizzling(const struct sp_sampler_variant *samp,
+ float in[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE],
+ float out[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ int j;
+ const unsigned swizzle_r = samp->key.bits.swizzle_r;
+ const unsigned swizzle_g = samp->key.bits.swizzle_g;
+ const unsigned swizzle_b = samp->key.bits.swizzle_b;
+ const unsigned swizzle_a = samp->key.bits.swizzle_a;
+
+ switch (swizzle_r) {
+ case PIPE_SWIZZLE_ZERO:
+ for (j = 0; j < 4; j++)
+ out[0][j] = 0.0f;
+ break;
+ case PIPE_SWIZZLE_ONE:
+ for (j = 0; j < 4; j++)
+ out[0][j] = 1.0f;
+ break;
+ default:
+ assert(swizzle_r < 4);
+ for (j = 0; j < 4; j++)
+ out[0][j] = in[swizzle_r][j];
+ }
+
+ switch (swizzle_g) {
+ case PIPE_SWIZZLE_ZERO:
+ for (j = 0; j < 4; j++)
+ out[1][j] = 0.0f;
+ break;
+ case PIPE_SWIZZLE_ONE:
+ for (j = 0; j < 4; j++)
+ out[1][j] = 1.0f;
+ break;
+ default:
+ assert(swizzle_g < 4);
+ for (j = 0; j < 4; j++)
+ out[1][j] = in[swizzle_g][j];
+ }
+
+ switch (swizzle_b) {
+ case PIPE_SWIZZLE_ZERO:
+ for (j = 0; j < 4; j++)
+ out[2][j] = 0.0f;
+ break;
+ case PIPE_SWIZZLE_ONE:
+ for (j = 0; j < 4; j++)
+ out[2][j] = 1.0f;
+ break;
+ default:
+ assert(swizzle_b < 4);
+ for (j = 0; j < 4; j++)
+ out[2][j] = in[swizzle_b][j];
+ }
+
+ switch (swizzle_a) {
+ case PIPE_SWIZZLE_ZERO:
+ for (j = 0; j < 4; j++)
+ out[3][j] = 0.0f;
+ break;
+ case PIPE_SWIZZLE_ONE:
+ for (j = 0; j < 4; j++)
+ out[3][j] = 1.0f;
+ break;
+ default:
+ assert(swizzle_a < 4);
+ for (j = 0; j < 4; j++)
+ out[3][j] = in[swizzle_a][j];
+ }
}
+static void
+sample_swizzle(struct tgsi_sampler *tgsi_sampler,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ const float c0[TGSI_QUAD_SIZE],
+ const float c1[TGSI_QUAD_SIZE],
+ enum tgsi_sampler_control control,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ float rgba_temp[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE];
+
+ samp->sample_target(tgsi_sampler, s, t, p, c0, c1, control, rgba_temp);
+
+ do_swizzling(samp, rgba_temp, rgba);
+}
+
static wrap_nearest_func
get_nearest_unorm_wrap(unsigned mode)
}
+/**
+ * Is swizzling needed for the given state key?
+ */
+static INLINE bool
+any_swizzle(union sp_sampler_key key)
+{
+ return (key.bits.swizzle_r != PIPE_SWIZZLE_RED ||
+ key.bits.swizzle_g != PIPE_SWIZZLE_GREEN ||
+ key.bits.swizzle_b != PIPE_SWIZZLE_BLUE ||
+ key.bits.swizzle_a != PIPE_SWIZZLE_ALPHA);
+}
+
+
static compute_lambda_func
get_lambda_func(const union sp_sampler_key key)
{
return compute_lambda_vert;
switch (key.bits.target) {
+ case PIPE_BUFFER:
case PIPE_TEXTURE_1D:
+ case PIPE_TEXTURE_1D_ARRAY:
return compute_lambda_1d;
case PIPE_TEXTURE_2D:
+ case PIPE_TEXTURE_2D_ARRAY:
+ case PIPE_TEXTURE_RECT:
case PIPE_TEXTURE_CUBE:
+ case PIPE_TEXTURE_CUBE_ARRAY:
return compute_lambda_2d;
case PIPE_TEXTURE_3D:
return compute_lambda_3d;
}
-static filter_func
+static img_filter_func
get_img_filter(const union sp_sampler_key key,
unsigned filter,
const struct pipe_sampler_state *sampler)
{
switch (key.bits.target) {
+ case PIPE_BUFFER:
case PIPE_TEXTURE_1D:
if (filter == PIPE_TEX_FILTER_NEAREST)
return img_filter_1d_nearest;
else
return img_filter_1d_linear;
break;
+ case PIPE_TEXTURE_1D_ARRAY:
+ if (filter == PIPE_TEX_FILTER_NEAREST)
+ return img_filter_1d_array_nearest;
+ else
+ return img_filter_1d_array_linear;
+ break;
case PIPE_TEXTURE_2D:
+ case PIPE_TEXTURE_RECT:
/* Try for fast path:
*/
if (key.bits.is_pot &&
else
return img_filter_2d_linear;
break;
+ case PIPE_TEXTURE_2D_ARRAY:
+ if (filter == PIPE_TEX_FILTER_NEAREST)
+ return img_filter_2d_array_nearest;
+ else
+ return img_filter_2d_array_linear;
+ break;
case PIPE_TEXTURE_CUBE:
if (filter == PIPE_TEX_FILTER_NEAREST)
return img_filter_cube_nearest;
else
return img_filter_cube_linear;
break;
+ case PIPE_TEXTURE_CUBE_ARRAY:
+ if (filter == PIPE_TEX_FILTER_NEAREST)
+ return img_filter_cube_array_nearest;
+ else
+ return img_filter_cube_array_linear;
+ break;
case PIPE_TEXTURE_3D:
if (filter == PIPE_TEX_FILTER_NEAREST)
return img_filter_3d_nearest;
/**
- * Bind the given texture object and texture cache to the sampler varient.
+ * Bind the given texture object and texture cache to the sampler variant.
*/
void
-sp_sampler_varient_bind_texture( struct sp_sampler_varient *samp,
- struct softpipe_tex_tile_cache *tex_cache,
- const struct pipe_resource *texture )
+sp_sampler_variant_bind_view( struct sp_sampler_variant *samp,
+ struct softpipe_tex_tile_cache *tex_cache,
+ const struct pipe_sampler_view *view )
{
- const struct pipe_sampler_state *sampler = samp->sampler;
+ const struct pipe_resource *texture = view->texture;
- samp->texture = texture;
+ samp->view = view;
samp->cache = tex_cache;
- samp->xpot = util_unsigned_logbase2( texture->width0 );
- samp->ypot = util_unsigned_logbase2( texture->height0 );
- samp->level = CLAMP((int) sampler->min_lod, 0, (int) texture->last_level);
+ samp->xpot = util_logbase2( texture->width0 );
+ samp->ypot = util_logbase2( texture->height0 );
}
void
-sp_sampler_varient_destroy( struct sp_sampler_varient *samp )
+sp_sampler_variant_destroy( struct sp_sampler_variant *samp )
{
FREE(samp);
}
+static void
+sample_get_dims(struct tgsi_sampler *tgsi_sampler, int level,
+ int dims[4])
+{
+ struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ const struct pipe_sampler_view *view = samp->view;
+ const struct pipe_resource *texture = view->texture;
+
+ /* undefined according to EXT_gpu_program */
+ level += view->u.tex.first_level;
+ if (level > view->u.tex.last_level)
+ return;
+
+ dims[0] = u_minify(texture->width0, level);
+
+ switch(texture->target) {
+ case PIPE_TEXTURE_1D_ARRAY:
+ dims[1] = texture->array_size;
+ /* fallthrough */
+ case PIPE_TEXTURE_1D:
+ return;
+ case PIPE_TEXTURE_2D_ARRAY:
+ dims[2] = texture->array_size;
+ /* fallthrough */
+ case PIPE_TEXTURE_2D:
+ case PIPE_TEXTURE_CUBE:
+ case PIPE_TEXTURE_RECT:
+ dims[1] = u_minify(texture->height0, level);
+ return;
+ case PIPE_TEXTURE_3D:
+ dims[1] = u_minify(texture->height0, level);
+ dims[2] = u_minify(texture->depth0, level);
+ return;
+ case PIPE_TEXTURE_CUBE_ARRAY:
+ dims[1] = u_minify(texture->height0, level);
+ dims[2] = texture->array_size / 6;
+ break;
+ case PIPE_BUFFER:
+ dims[0] /= util_format_get_blocksize(view->format);
+ return;
+ default:
+ assert(!"unexpected texture target in sample_get_dims()");
+ return;
+ }
+}
+
/**
- * Create a sampler varient for a given set of non-orthogonal state.
+ * This function is only used for getting unfiltered texels via the
+ * TXF opcode. The GL spec says that out-of-bounds texel fetches
+ * produce undefined results. Instead of crashing, lets just clamp
+ * coords to the texture image size.
*/
-struct sp_sampler_varient *
-sp_create_sampler_varient( const struct pipe_sampler_state *sampler,
+static void
+sample_get_texels(struct tgsi_sampler *tgsi_sampler,
+ const int v_i[TGSI_QUAD_SIZE],
+ const int v_j[TGSI_QUAD_SIZE],
+ const int v_k[TGSI_QUAD_SIZE],
+ const int lod[TGSI_QUAD_SIZE],
+ const int8_t offset[3],
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
+ union tex_tile_address addr;
+ const struct pipe_resource *texture = samp->view->texture;
+ int j, c;
+ const float *tx;
+ const bool need_swizzle = any_swizzle(samp->key);
+ int width, height, depth, layers;
+
+ addr.value = 0;
+ /* TODO write a better test for LOD */
+ addr.bits.level = lod[0];
+
+ width = u_minify(texture->width0, addr.bits.level);
+ height = u_minify(texture->height0, addr.bits.level);
+ depth = u_minify(texture->depth0, addr.bits.level);
+ layers = texture->array_size;
+
+ switch(texture->target) {
+ case PIPE_BUFFER:
+ case PIPE_TEXTURE_1D:
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ int x = CLAMP(v_i[j] + offset[0], 0, width - 1);
+ tx = get_texel_2d(samp, addr, x, 0);
+ for (c = 0; c < 4; c++) {
+ rgba[c][j] = tx[c];
+ }
+ }
+ break;
+ case PIPE_TEXTURE_1D_ARRAY:
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ int x = CLAMP(v_i[j] + offset[0], 0, width - 1);
+ int y = CLAMP(v_j[j], 0, layers - 1);
+ tx = get_texel_1d_array(samp, addr, x, y);
+ for (c = 0; c < 4; c++) {
+ rgba[c][j] = tx[c];
+ }
+ }
+ break;
+ case PIPE_TEXTURE_2D:
+ case PIPE_TEXTURE_RECT:
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ int x = CLAMP(v_i[j] + offset[0], 0, width - 1);
+ int y = CLAMP(v_j[j] + offset[1], 0, height - 1);
+ tx = get_texel_2d(samp, addr, x, y);
+ for (c = 0; c < 4; c++) {
+ rgba[c][j] = tx[c];
+ }
+ }
+ break;
+ case PIPE_TEXTURE_2D_ARRAY:
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ int x = CLAMP(v_i[j] + offset[0], 0, width - 1);
+ int y = CLAMP(v_j[j] + offset[1], 0, height - 1);
+ int layer = CLAMP(v_k[j], 0, layers - 1);
+ tx = get_texel_2d_array(samp, addr, x, y, layer);
+ for (c = 0; c < 4; c++) {
+ rgba[c][j] = tx[c];
+ }
+ }
+ break;
+ case PIPE_TEXTURE_3D:
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ int x = CLAMP(v_i[j] + offset[0], 0, width - 1);
+ int y = CLAMP(v_j[j] + offset[1], 0, height - 1);
+ int z = CLAMP(v_k[j] + offset[2], 0, depth - 1);
+
+ tx = get_texel_3d(samp, addr, x, y, z);
+ for (c = 0; c < 4; c++) {
+ rgba[c][j] = tx[c];
+ }
+ }
+ break;
+ case PIPE_TEXTURE_CUBE: /* TXF can't work on CUBE according to spec */
+ default:
+ assert(!"Unknown or CUBE texture type in TXF processing\n");
+ break;
+ }
+
+ if (need_swizzle) {
+ float rgba_temp[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE];
+ memcpy(rgba_temp, rgba, sizeof(rgba_temp));
+ do_swizzling(samp, rgba_temp, rgba);
+ }
+}
+
+
+/**
+ * Create a sampler variant for a given set of non-orthogonal state.
+ */
+struct sp_sampler_variant *
+sp_create_sampler_variant( const struct pipe_sampler_state *sampler,
const union sp_sampler_key key )
{
- struct sp_sampler_varient *samp = CALLOC_STRUCT(sp_sampler_varient);
+ struct sp_sampler_variant *samp = CALLOC_STRUCT(sp_sampler_variant);
if (!samp)
return NULL;
switch (sampler->min_mip_filter) {
case PIPE_TEX_MIPFILTER_NONE:
if (sampler->min_img_filter == sampler->mag_img_filter)
- samp->mip_filter = samp->min_img_filter;
+ samp->mip_filter = mip_filter_none_no_filter_select;
else
samp->mip_filter = mip_filter_none;
break;
sampler->normalized_coords &&
sampler->wrap_s == PIPE_TEX_WRAP_REPEAT &&
sampler->wrap_t == PIPE_TEX_WRAP_REPEAT &&
- sampler->min_img_filter == PIPE_TEX_FILTER_LINEAR)
- {
+ sampler->min_img_filter == PIPE_TEX_FILTER_LINEAR) {
samp->mip_filter = mip_filter_linear_2d_linear_repeat_POT;
}
- else
- {
+ else {
samp->mip_filter = mip_filter_linear;
}
+
+ /* Anisotropic filtering extension. */
+ if (sampler->max_anisotropy > 1) {
+ samp->mip_filter = mip_filter_linear_aniso;
+
+ /* Override min_img_filter:
+ * min_img_filter needs to be set to NEAREST since we need to access
+ * each texture pixel as it is and weight it later; using linear
+ * filters will have incorrect results.
+ * By setting the filter to NEAREST here, we can avoid calling the
+ * generic img_filter_2d_nearest in the anisotropic filter function,
+ * making it possible to use one of the accelerated implementations
+ */
+ samp->min_img_filter = get_img_filter(key, PIPE_TEX_FILTER_NEAREST, sampler);
+
+ /* on first access create the lookup table containing the filter weights. */
+ if (!weightLut) {
+ create_filter_table();
+ }
+ }
+
break;
}
samp->compare = samp->mip_filter;
}
- if (key.bits.target == PIPE_TEXTURE_CUBE) {
- samp->base.get_samples = sample_cube;
+ if (key.bits.target == PIPE_TEXTURE_CUBE || key.bits.target == PIPE_TEXTURE_CUBE_ARRAY) {
+ samp->sample_target = sample_cube;
}
else {
samp->faces[0] = 0;
/* Skip cube face determination by promoting the compare
* function pointer:
*/
- samp->base.get_samples = samp->compare;
+ samp->sample_target = samp->compare;
+ }
+
+ if (any_swizzle(key)) {
+ samp->base.get_samples = sample_swizzle;
+ }
+ else {
+ samp->base.get_samples = samp->sample_target;
}
+ samp->base.get_dims = sample_get_dims;
+ samp->base.get_texel = sample_get_texels;
return samp;
}
projects / mesa.git / blobdiff