/**************************************************************************
*
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2007 VMware, Inc.
* All Rights Reserved.
* Copyright 2008-2010 VMware, Inc. All rights reserved.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "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 "util/u_inlines.h"
#include "sp_quad.h" /* only for #define QUAD_* tokens */
#include "sp_tex_sample.h"
+#include "sp_texture.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.
/**
* 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;
}
* \param s the incoming texcoords
* \param size the texture image size
* \param icoord returns the integer texcoords
- * \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, (int) 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_view *sview,
+ 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 = sview->base.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, sview->base.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_view *sview,
+ 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 = sview->base.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, sview->base.u.tex.first_level);
+ float maxy = MAX2(dtdx, dtdy) * u_minify(texture->height0, sview->base.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_view *sview,
+ 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 = sview->base.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, sview->base.u.tex.first_level);
+ float maxy = MAX2(dtdx, dtdy) * u_minify(texture->height0, sview->base.u.tex.first_level);
+ float maxz = MAX2(dpdx, dpdy) * u_minify(texture->depth0, sview->base.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_view *sview,
+ 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,
- union tex_tile_address addr, int x, int y)
+get_texel_2d_no_border(const struct sp_sampler_view *sp_sview,
+ union tex_tile_address addr, int x, int y)
{
const struct softpipe_tex_cached_tile *tile;
+ addr.bits.x = x / TEX_TILE_SIZE;
+ addr.bits.y = y / TEX_TILE_SIZE;
+ y %= TEX_TILE_SIZE;
+ x %= TEX_TILE_SIZE;
- addr.bits.x = x / TILE_SIZE;
- addr.bits.y = y / TILE_SIZE;
- y %= TILE_SIZE;
- x %= TILE_SIZE;
-
- tile = sp_get_cached_tile_tex(samp->cache, addr);
+ tile = sp_get_cached_tile_tex(sp_sview->cache, addr);
return &tile->data.color[y][x][0];
}
static INLINE const float *
-get_texel_2d(const struct sp_sampler_varient *samp,
- union tex_tile_address addr, int x, int y)
+get_texel_2d(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ union tex_tile_address addr, int x, int y)
{
- const struct pipe_resource *texture = samp->texture;
+ const struct pipe_resource *texture = sp_sview->base.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 sp_samp->base.border_color.f;
}
else {
- return get_texel_2d_no_border( samp, addr, x, y );
+ return get_texel_2d_no_border( sp_sview, addr, x, y );
+ }
+}
+
+
+/*
+ * Here's the complete logic (HOLY CRAP) for finding next face and doing the
+ * corresponding coord wrapping, implemented by get_next_face,
+ * get_next_xcoord, get_next_ycoord.
+ * Read like that (first line):
+ * If face is +x and s coord is below zero, then
+ * new face is +z, new s is max , new t is old t
+ * (max is always cube size - 1).
+ *
+ * +x s- -> +z: s = max, t = t
+ * +x s+ -> -z: s = 0, t = t
+ * +x t- -> +y: s = max, t = max-s
+ * +x t+ -> -y: s = max, t = s
+ *
+ * -x s- -> -z: s = max, t = t
+ * -x s+ -> +z: s = 0, t = t
+ * -x t- -> +y: s = 0, t = s
+ * -x t+ -> -y: s = 0, t = max-s
+ *
+ * +y s- -> -x: s = t, t = 0
+ * +y s+ -> +x: s = max-t, t = 0
+ * +y t- -> -z: s = max-s, t = 0
+ * +y t+ -> +z: s = s, t = 0
+ *
+ * -y s- -> -x: s = max-t, t = max
+ * -y s+ -> +x: s = t, t = max
+ * -y t- -> +z: s = s, t = max
+ * -y t+ -> -z: s = max-s, t = max
+
+ * +z s- -> -x: s = max, t = t
+ * +z s+ -> +x: s = 0, t = t
+ * +z t- -> +y: s = s, t = max
+ * +z t+ -> -y: s = s, t = 0
+
+ * -z s- -> +x: s = max, t = t
+ * -z s+ -> -x: s = 0, t = t
+ * -z t- -> +y: s = max-s, t = 0
+ * -z t+ -> -y: s = max-s, t = max
+ */
+
+
+/*
+ * 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_POS_Y, PIPE_TEX_FACE_NEG_Y },
+ /* PIPE_TEX_FACE_NEG_X */
+ { PIPE_TEX_FACE_NEG_Z, PIPE_TEX_FACE_POS_Z,
+ PIPE_TEX_FACE_POS_Y, PIPE_TEX_FACE_NEG_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_NEG_Z, PIPE_TEX_FACE_POS_Z },
+
+ /* PIPE_TEX_FACE_NEG_Y */
+ { PIPE_TEX_FACE_NEG_X, PIPE_TEX_FACE_POS_X,
+ PIPE_TEX_FACE_POS_Z, PIPE_TEX_FACE_NEG_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_POS_Y, PIPE_TEX_FACE_NEG_Y },
+
+ /* PIPE_TEX_FACE_NEG_Z */
+ { PIPE_TEX_FACE_POS_X, PIPE_TEX_FACE_NEG_X,
+ PIPE_TEX_FACE_POS_Y, PIPE_TEX_FACE_NEG_Y }
+};
+
+static INLINE unsigned
+get_next_face(unsigned face, int idx)
+{
+ return face_array[face][idx];
+}
+
+/*
+ * return a new xcoord based on old face, old coords, cube size
+ * and fall_off_index (0 for x-, 1 for x+, 2 for y-, 3 for y+)
+ */
+static INLINE int
+get_next_xcoord(unsigned face, unsigned fall_off_index, int max, int xc, int yc)
+{
+ if ((face == 0 && fall_off_index != 1) ||
+ (face == 1 && fall_off_index == 0) ||
+ (face == 4 && fall_off_index == 0) ||
+ (face == 5 && fall_off_index == 0)) {
+ return max;
+ }
+ if ((face == 1 && fall_off_index != 0) ||
+ (face == 0 && fall_off_index == 1) ||
+ (face == 4 && fall_off_index == 1) ||
+ (face == 5 && fall_off_index == 1)) {
+ return 0;
+ }
+ if ((face == 4 && fall_off_index >= 2) ||
+ (face == 2 && fall_off_index == 3) ||
+ (face == 3 && fall_off_index == 2)) {
+ return xc;
+ }
+ if ((face == 5 && fall_off_index >= 2) ||
+ (face == 2 && fall_off_index == 2) ||
+ (face == 3 && fall_off_index == 3)) {
+ return max - xc;
+ }
+ if ((face == 2 && fall_off_index == 0) ||
+ (face == 3 && fall_off_index == 1)) {
+ return yc;
+ }
+ /* (face == 2 && fall_off_index == 1) ||
+ (face == 3 && fall_off_index == 0)) */
+ return max - yc;
+}
+
+/*
+ * return a new ycoord based on old face, old coords, cube size
+ * and fall_off_index (0 for x-, 1 for x+, 2 for y-, 3 for y+)
+ */
+static INLINE int
+get_next_ycoord(unsigned face, unsigned fall_off_index, int max, int xc, int yc)
+{
+ if ((fall_off_index <= 1) && (face <= 1 || face >= 4)) {
+ return yc;
+ }
+ if (face == 2 ||
+ (face == 4 && fall_off_index == 3) ||
+ (face == 5 && fall_off_index == 2)) {
+ return 0;
}
+ if (face == 3 ||
+ (face == 4 && fall_off_index == 2) ||
+ (face == 5 && fall_off_index == 3)) {
+ return max;
+ }
+ if ((face == 0 && fall_off_index == 3) ||
+ (face == 1 && fall_off_index == 2)) {
+ return xc;
+ }
+ /* (face == 0 && fall_off_index == 2) ||
+ (face == 1 && fall_off_index == 3) */
+ return max - xc;
}
+static INLINE const float *
+get_texel_cube_seamless(const struct sp_sampler_view *sp_sview,
+ union tex_tile_address addr, int x, int y,
+ float *corner)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ unsigned level = addr.bits.level;
+ unsigned face = addr.bits.face;
+ int new_x, new_y, max_x;
+
+ max_x = (int) u_minify(texture->width0, level);
+
+ assert(texture->width0 == texture->height0);
+ new_x = x;
+ new_y = y;
+
+ /* change the face */
+ if (x < 0) {
+ /*
+ * Cheat with corners. They are difficult and I believe because we don't get
+ * per-pixel faces we can actually have multiple corner texels per pixel,
+ * which screws things up majorly in any case (as the per spec behavior is
+ * to average the 3 remaining texels, which we might not have).
+ * Hence just make sure that the 2nd coord is clamped, will simply pick the
+ * sample which would have fallen off the x coord, but not y coord.
+ * So the filter weight of the samples will be wrong, but at least this
+ * ensures that only valid texels near the corner are used.
+ */
+ if (y < 0 || y >= max_x) {
+ y = CLAMP(y, 0, max_x - 1);
+ }
+ new_x = get_next_xcoord(face, 0, max_x -1, x, y);
+ new_y = get_next_ycoord(face, 0, max_x -1, x, y);
+ face = get_next_face(face, 0);
+ } else if (x >= max_x) {
+ if (y < 0 || y >= max_x) {
+ y = CLAMP(y, 0, max_x - 1);
+ }
+ new_x = get_next_xcoord(face, 1, max_x -1, x, y);
+ new_y = get_next_ycoord(face, 1, max_x -1, x, y);
+ face = get_next_face(face, 1);
+ } else if (y < 0) {
+ new_x = get_next_xcoord(face, 2, max_x -1, x, y);
+ new_y = get_next_ycoord(face, 2, max_x -1, x, y);
+ face = get_next_face(face, 2);
+ } else if (y >= max_x) {
+ new_x = get_next_xcoord(face, 3, max_x -1, x, y);
+ new_y = get_next_ycoord(face, 3, max_x -1, x, y);
+ face = get_next_face(face, 3);
+ }
+
+ addr.bits.face = face;
+ return get_texel_2d_no_border( sp_sview, 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,
- union tex_tile_address addr,
- unsigned x, unsigned y,
- const float *out[4])
+get_texel_quad_2d_no_border_single_tile(const struct sp_sampler_view *sp_sview,
+ union tex_tile_address addr,
+ unsigned x, unsigned y,
+ const float *out[4])
{
- const struct softpipe_tex_cached_tile *tile;
+ const struct softpipe_tex_cached_tile *tile;
- addr.bits.x = x / TILE_SIZE;
- addr.bits.y = y / TILE_SIZE;
- y %= TILE_SIZE;
- x %= TILE_SIZE;
+ addr.bits.x = x / TEX_TILE_SIZE;
+ addr.bits.y = y / TEX_TILE_SIZE;
+ y %= TEX_TILE_SIZE;
+ x %= TEX_TILE_SIZE;
- tile = sp_get_cached_tile_tex(samp->cache, addr);
+ tile = sp_get_cached_tile_tex(sp_sview->cache, addr);
out[0] = &tile->data.color[y ][x ][0];
out[1] = &tile->data.color[y ][x+1][0];
/* Gather a quad of potentially non-adjacent texels:
*/
static INLINE void
-get_texel_quad_2d_no_border(const struct sp_sampler_varient *samp,
- union tex_tile_address addr,
- int x0, int y0,
- int x1, int y1,
- const float *out[4])
+get_texel_quad_2d_no_border(const struct sp_sampler_view *sp_sview,
+ union tex_tile_address addr,
+ int x0, int y0,
+ int x1, int y1,
+ const float *out[4])
{
- out[0] = get_texel_2d_no_border( samp, addr, x0, y0 );
- out[1] = get_texel_2d_no_border( samp, addr, x1, y0 );
- out[2] = get_texel_2d_no_border( samp, addr, x0, y1 );
- out[3] = get_texel_2d_no_border( samp, addr, x1, y1 );
+ out[0] = get_texel_2d_no_border( sp_sview, addr, x0, y0 );
+ out[1] = get_texel_2d_no_border( sp_sview, addr, x1, y0 );
+ out[2] = get_texel_2d_no_border( sp_sview, addr, x0, y1 );
+ out[3] = get_texel_2d_no_border( sp_sview, addr, x1, y1 );
}
/* Can involve a lot of unnecessary checks for border color:
*/
static INLINE void
-get_texel_quad_2d(const struct sp_sampler_varient *samp,
- union tex_tile_address addr,
- int x0, int y0,
- int x1, int y1,
- const float *out[4])
+get_texel_quad_2d(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ union tex_tile_address addr,
+ int x0, int y0,
+ int x1, int y1,
+ const float *out[4])
{
- out[0] = get_texel_2d( samp, addr, x0, y0 );
- out[1] = get_texel_2d( samp, addr, x1, y0 );
- out[3] = get_texel_2d( samp, addr, x1, y1 );
- out[2] = get_texel_2d( samp, addr, x0, y1 );
+ out[0] = get_texel_2d( sp_sview, sp_samp, addr, x0, y0 );
+ out[1] = get_texel_2d( sp_sview, sp_samp, addr, x1, y0 );
+ out[3] = get_texel_2d( sp_sview, sp_samp, addr, x1, y1 );
+ out[2] = get_texel_2d( sp_sview, sp_samp, addr, x0, 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_view *sp_sview,
union tex_tile_address addr, int x, int y, int z)
{
const struct softpipe_tex_cached_tile *tile;
- addr.bits.x = x / TILE_SIZE;
- addr.bits.y = y / TILE_SIZE;
+ addr.bits.x = x / TEX_TILE_SIZE;
+ addr.bits.y = y / TEX_TILE_SIZE;
addr.bits.z = z;
- y %= TILE_SIZE;
- x %= TILE_SIZE;
+ y %= TEX_TILE_SIZE;
+ x %= TEX_TILE_SIZE;
- tile = sp_get_cached_tile_tex(samp->cache, addr);
+ tile = sp_get_cached_tile_tex(sp_sview->cache, addr);
return &tile->data.color[y][x][0];
}
static INLINE const float *
-get_texel_3d(const struct sp_sampler_varient *samp,
- union tex_tile_address addr, int x, int y, int z)
+get_texel_3d(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ union tex_tile_address addr, int x, int y, int z)
{
- const struct pipe_resource *texture = samp->texture;
+ const struct pipe_resource *texture = sp_sview->base.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 sp_samp->base.border_color.f;
+ }
+ else {
+ return get_texel_3d_no_border( sp_sview, addr, x, y, z );
+ }
+}
+
+
+/* Get texel pointer for 1D array texture */
+static INLINE const float *
+get_texel_1d_array(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ union tex_tile_address addr, int x, int y)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ unsigned level = addr.bits.level;
+
+ if (x < 0 || x >= (int) u_minify(texture->width0, level)) {
+ return sp_samp->base.border_color.f;
+ }
+ else {
+ return get_texel_2d_no_border(sp_sview, addr, x, y);
+ }
+}
+
+
+/* Get texel pointer for 2D array texture */
+static INLINE const float *
+get_texel_2d_array(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ union tex_tile_address addr, int x, int y, int layer)
+{
+ const struct pipe_resource *texture = sp_sview->base.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 sp_samp->base.border_color.f;
}
else {
- return get_texel_3d_no_border( samp, addr, x, y, z );
+ return get_texel_3d_no_border(sp_sview, addr, x, y, layer);
}
}
+/* Get texel pointer for cube array texture */
+static INLINE const float *
+get_texel_cube_array(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ union tex_tile_address addr, int x, int y, int layer)
+{
+ const struct pipe_resource *texture = sp_sview->base.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 sp_samp->base.border_color.f;
+ }
+ else {
+ return get_texel_3d_no_border(sp_sview, 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],
- enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
-{
- const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- unsigned j;
- unsigned level = samp->level;
- 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; */
+img_filter_2d_linear_repeat_POT(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float *rgba)
+{
+ unsigned xpot = pot_level_size(sp_sview->xpot, level);
+ unsigned ypot = pot_level_size(sp_sview->ypot, level);
+ int xmax = (xpot - 1) & (TEX_TILE_SIZE - 1); /* MIN2(TEX_TILE_SIZE, xpot) - 1; */
+ int ymax = (ypot - 1) & (TEX_TILE_SIZE - 1); /* MIN2(TEX_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(sp_sview, addr, x0, y0, tx);
+ }
+ else {
+ unsigned x1 = (x0 + 1) & (xpot - 1);
+ unsigned y1 = (y0 + 1) & (ypot - 1);
+ get_texel_quad_2d_no_border(sp_sview, 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],
- enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
-{
- const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- unsigned j;
- unsigned level = samp->level;
- unsigned xpot = pot_level_size(samp->xpot, level);
- unsigned ypot = pot_level_size(samp->ypot, level);
+img_filter_2d_nearest_repeat_POT(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float rgba[TGSI_QUAD_SIZE])
+{
+ unsigned xpot = pot_level_size(sp_sview->xpot, level);
+ unsigned ypot = pot_level_size(sp_sview->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(sp_sview, 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],
- enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
-{
- const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- unsigned j;
- unsigned level = samp->level;
- unsigned xpot = pot_level_size(samp->xpot, level);
- unsigned ypot = pot_level_size(samp->ypot, level);
+img_filter_2d_nearest_clamp_POT(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float rgba[TGSI_QUAD_SIZE])
+{
+ unsigned xpot = pot_level_size(sp_sview->xpot, level);
+ unsigned ypot = pot_level_size(sp_sview->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 > (int) xpot - 1)
+ x0 = xpot - 1;
+
+ y0 = util_ifloor(v);
+ if (y0 < 0)
+ y0 = 0;
+ else if (y0 > (int) ypot - 1)
+ y0 = ypot - 1;
+
+ out = get_texel_2d_no_border(sp_sview, 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 sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float rgba[TGSI_QUAD_SIZE])
+{
+ const struct pipe_resource *texture = sp_sview->base.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;
+
+ sp_samp->nearest_texcoord_s(s, width, &x);
+
+ out = get_texel_2d(sp_sview, sp_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 sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.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);
+ sp_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(sp_sview, sp_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],
- 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_2d_nearest(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.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;
+ sp_samp->nearest_texcoord_s(s, width, &x);
+ sp_samp->nearest_texcoord_t(t, height, &y);
+
+ out = get_texel_2d(sp_sview, sp_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);
+ }
+}
+
+
+static void
+img_filter_2d_array_nearest(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ int width, height;
+ int x, y, layer;
+ 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;
- samp->nearest_texcoord_s(s, width, x);
- samp->nearest_texcoord_t(t, height, y);
+ sp_samp->nearest_texcoord_s(s, width, &x);
+ sp_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(sp_sview, sp_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],
- 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;
- const unsigned *faces = samp->faces; /* zero when not cube-mapping */
- unsigned level0, j;
+img_filter_cube_nearest(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.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 (sp_samp->base.seamless_cube_map) {
+ wrap_nearest_clamp_to_edge(s, width, &x);
+ wrap_nearest_clamp_to_edge(t, height, &y);
+ } else {
+ /* Would probably make sense to ignore mode and just do edge clamp */
+ sp_samp->nearest_texcoord_s(s, width, &x);
+ sp_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(sp_sview, sp_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 sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.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;
+
+ sp_samp->nearest_texcoord_s(s, width, &x);
+ sp_samp->nearest_texcoord_t(t, height, &y);
+ wrap_array_layer(p, texture->array_size, &layer);
+
+ out = get_texel_cube_array(sp_sview, sp_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],
- 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_3d_nearest(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.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);
+ sp_samp->nearest_texcoord_s(s, width, &x);
+ sp_samp->nearest_texcoord_t(t, height, &y);
+ sp_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(sp_sview, sp_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],
- 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_linear(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.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);
+ sp_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(sp_sview, sp_samp, addr, x0, 0);
+ tx1 = get_texel_2d(sp_sview, sp_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_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],
- 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;
- int width, height;
- int x0[4], y0[4], x1[4], y1[4];
- float xw[4], yw[4]; /* weights */
+img_filter_1d_array_linear(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ int width;
+ int x0, x1, layer;
+ float xw; /* weights */
union tex_tile_address addr;
+ const float *tx0, *tx1;
+ int c;
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
+ width = u_minify(texture->width0, 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);
+ sp_samp->linear_texcoord_s(s, width, &x0, &x1, &xw);
+ wrap_array_layer(t, texture->array_size, &layer);
- 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_1d_array(sp_sview, sp_samp, addr, x0, layer);
+ tx1 = get_texel_1d_array(sp_sview, sp_samp, addr, x1, layer);
- /* 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(xw, tx0[c], tx1[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],
- 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;
- const unsigned *faces = samp->faces; /* zero when not cube-mapping */
- unsigned level0, j;
+img_filter_2d_linear(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.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);
+ sp_samp->linear_texcoord_s(s, width, &x0, &x1, &xw);
+ sp_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;
+ tx0 = get_texel_2d(sp_sview, sp_samp, addr, x0, y0);
+ tx1 = get_texel_2d(sp_sview, sp_samp, addr, x1, y0);
+ tx2 = get_texel_2d(sp_sview, sp_samp, addr, x0, y1);
+ tx3 = get_texel_2d(sp_sview, sp_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_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],
- 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;
- 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 */
+img_filter_2d_array_linear(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.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;
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
- depth = u_minify(texture->depth0, level0);
-
- addr.value = 0;
- addr.bits.level = level0;
+ width = u_minify(texture->width0, level);
+ height = u_minify(texture->height0, 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);
+ addr.value = 0;
+ addr.bits.level = level;
- for (j = 0; j < QUAD_SIZE; j++) {
- int c;
+ sp_samp->linear_texcoord_s(s, width, &x0, &x1, &xw);
+ sp_samp->linear_texcoord_t(t, height, &y0, &y1, &yw);
+ wrap_array_layer(p, texture->array_size, &layer);
- 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]);
-
- 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]);
-
- /* 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]);
- }
- }
+ tx0 = get_texel_2d_array(sp_sview, sp_samp, addr, x0, y0, layer);
+ tx1 = get_texel_2d_array(sp_sview, sp_samp, addr, x1, y0, layer);
+ tx2 = get_texel_2d_array(sp_sview, sp_samp, addr, x0, y1, layer);
+ tx3 = get_texel_2d_array(sp_sview, sp_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]);
}
-/* Calculate level of detail for every fragment.
- * Note that lambda has already been biased by global LOD bias.
- */
-static INLINE void
-compute_lod(const struct pipe_sampler_state *sampler,
- const float biased_lambda,
- const float lodbias[QUAD_SIZE],
- float lod[QUAD_SIZE])
-{
- uint i;
+static void
+img_filter_cube_linear(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ int width, height;
+ 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;
- for (i = 0; i < QUAD_SIZE; i++) {
- lod[i] = biased_lambda + lodbias[i];
- lod[i] = CLAMP(lod[i], sampler->min_lod, sampler->max_lod);
- }
-}
+ width = u_minify(texture->width0, level);
+ height = u_minify(texture->height0, level);
+ assert(width > 0);
+ assert(height > 0);
-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],
- enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][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];
+ addr.value = 0;
+ addr.bits.level = level;
- 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);
+ /*
+ * For seamless if LINEAR filtering is done within a miplevel,
+ * always apply wrap mode CLAMP_TO_BORDER.
+ */
+ if (sp_samp->base.seamless_cube_map) {
+ /* Note this is a bit overkill, actual clamping is not required */
+ wrap_linear_clamp_to_border(s, width, &x0, &x1, &xw);
+ wrap_linear_clamp_to_border(t, height, &y0, &y1, &yw);
} else {
- assert(control == tgsi_sampler_lod_explicit);
+ /* Would probably make sense to ignore mode and just do edge clamp */
+ sp_samp->linear_texcoord_s(s, width, &x0, &x1, &xw);
+ sp_samp->linear_texcoord_t(t, height, &y0, &y1, &yw);
+ }
+
+ addrj = face(addr, face_id);
- memcpy(lod, c0, sizeof(lod));
+ if (sp_samp->base.seamless_cube_map) {
+ tx0 = get_texel_cube_seamless(sp_sview, addrj, x0, y0, corner0);
+ tx1 = get_texel_cube_seamless(sp_sview, addrj, x1, y0, corner1);
+ tx2 = get_texel_cube_seamless(sp_sview, addrj, x0, y1, corner2);
+ tx3 = get_texel_cube_seamless(sp_sview, addrj, x1, y1, corner3);
+ } else {
+ tx0 = get_texel_2d(sp_sview, sp_samp, addrj, x0, y0);
+ tx1 = get_texel_2d(sp_sview, sp_samp, addrj, x1, y0);
+ tx2 = get_texel_2d(sp_sview, sp_samp, addrj, x0, y1);
+ tx3 = get_texel_2d(sp_sview, sp_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 sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.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;
+
+ sp_samp->linear_texcoord_s(s, width, &x0, &x1, &xw);
+ sp_samp->linear_texcoord_t(t, height, &y0, &y1, &yw);
+ wrap_array_layer(p, texture->array_size, &layer);
+
+ tx0 = get_texel_cube_array(sp_sview, sp_samp, addr, x0, y0, layer * 6 + face_id);
+ tx1 = get_texel_cube_array(sp_sview, sp_samp, addr, x1, y0, layer * 6 + face_id);
+ tx2 = get_texel_cube_array(sp_sview, sp_samp, addr, x0, y1, layer * 6 + face_id);
+ tx3 = get_texel_cube_array(sp_sview, sp_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 sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ float s,
+ float t,
+ float p,
+ unsigned level,
+ unsigned face_id,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ int width, height, depth;
+ 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;
+
+ width = u_minify(texture->width0, level);
+ height = u_minify(texture->height0, level);
+ depth = u_minify(texture->depth0, level);
+
+ addr.value = 0;
+ addr.bits.level = level;
+
+ assert(width > 0);
+ assert(height > 0);
+ assert(depth > 0);
+
+ sp_samp->linear_texcoord_s(s, width, &x0, &x1, &xw);
+ sp_samp->linear_texcoord_t(t, height, &y0, &y1, &yw);
+ sp_samp->linear_texcoord_p(p, depth, &z0, &z1, &zw);
+
+
+ tx00 = get_texel_3d(sp_sview, sp_samp, addr, x0, y0, z0);
+ tx01 = get_texel_3d(sp_sview, sp_samp, addr, x1, y0, z0);
+ tx02 = get_texel_3d(sp_sview, sp_samp, addr, x0, y1, z0);
+ tx03 = get_texel_3d(sp_sview, sp_samp, addr, x1, y1, z0);
+
+ tx10 = get_texel_3d(sp_sview, sp_samp, addr, x0, y0, z1);
+ tx11 = get_texel_3d(sp_sview, sp_samp, addr, x1, y0, z1);
+ tx12 = get_texel_3d(sp_sview, sp_samp, addr, x0, y1, z1);
+ tx13 = get_texel_3d(sp_sview, sp_samp, addr, x1, y1, z1);
+
+ /* interpolate R, G, B, A */
+ 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]);
+}
- /* XXX: Take into account all lod values.
- */
- lambda = lod[0];
- level0 = (int)lambda;
- if (lambda < 0.0) {
- samp->level = 0;
- samp->mag_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba);
+/* Calculate level of detail for every fragment,
+ * with lambda already computed.
+ * Note that lambda has already been biased by global LOD bias.
+ * \param biased_lambda per-quad lambda.
+ * \param lod_in per-fragment lod_bias or explicit_lod.
+ * \param lod returns the per-fragment lod.
+ */
+static INLINE void
+compute_lod(const struct pipe_sampler_state *sampler,
+ enum tgsi_sampler_control control,
+ const float biased_lambda,
+ const float lod_in[TGSI_QUAD_SIZE],
+ float lod[TGSI_QUAD_SIZE])
+{
+ float min_lod = sampler->min_lod;
+ float max_lod = sampler->max_lod;
+ uint i;
+
+ switch (control) {
+ case tgsi_sampler_lod_none:
+ case tgsi_sampler_lod_zero:
+ /* XXX FIXME */
+ case tgsi_sampler_derivs_explicit:
+ lod[0] = lod[1] = lod[2] = lod[3] = CLAMP(biased_lambda, min_lod, max_lod);
+ break;
+ case tgsi_sampler_lod_bias:
+ for (i = 0; i < TGSI_QUAD_SIZE; i++) {
+ lod[i] = biased_lambda + lod_in[i];
+ lod[i] = CLAMP(lod[i], min_lod, max_lod);
+ }
+ break;
+ case tgsi_sampler_lod_explicit:
+ for (i = 0; i < TGSI_QUAD_SIZE; i++) {
+ lod[i] = CLAMP(lod_in[i], min_lod, max_lod);
+ }
+ break;
+ default:
+ assert(0);
+ lod[0] = lod[1] = lod[2] = lod[3] = 0.0f;
}
- 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);
+}
+
+
+/* Calculate level of detail for every fragment.
+ * \param lod_in per-fragment lod_bias or explicit_lod.
+ * \param lod results per-fragment lod.
+ */
+static INLINE void
+compute_lambda_lod(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ const float lod_in[TGSI_QUAD_SIZE],
+ enum tgsi_sampler_control control,
+ float lod[TGSI_QUAD_SIZE])
+{
+ const struct pipe_sampler_state *sampler = &sp_samp->base;
+ float lod_bias = sampler->lod_bias;
+ float min_lod = sampler->min_lod;
+ float max_lod = sampler->max_lod;
+ float lambda;
+ uint i;
+
+ switch (control) {
+ case tgsi_sampler_lod_none:
+ /* XXX FIXME */
+ case tgsi_sampler_derivs_explicit:
+ lambda = sp_sview->compute_lambda(sp_sview, s, t, p) + lod_bias;
+ lod[0] = lod[1] = lod[2] = lod[3] = CLAMP(lambda, min_lod, max_lod);
+ break;
+ case tgsi_sampler_lod_bias:
+ lambda = sp_sview->compute_lambda(sp_sview, s, t, p) + lod_bias;
+ for (i = 0; i < TGSI_QUAD_SIZE; i++) {
+ lod[i] = lambda + lod_in[i];
+ lod[i] = CLAMP(lod[i], min_lod, max_lod);
+ }
+ break;
+ case tgsi_sampler_lod_explicit:
+ for (i = 0; i < TGSI_QUAD_SIZE; i++) {
+ lod[i] = CLAMP(lod_in[i], min_lod, max_lod);
+ }
+ break;
+ case tgsi_sampler_lod_zero:
+ /* this is all static state in the sampler really need clamp here? */
+ lod[0] = lod[1] = lod[2] = lod[3] = CLAMP(lod_bias, min_lod, max_lod);
+ break;
+ default:
+ assert(0);
+ lod[0] = lod[1] = lod[2] = lod[3] = 0.0f;
}
- else {
- float levelBlend = lambda - level0;
- float rgba0[4][4];
- float rgba1[4][4];
- int c,j;
+}
+
+
+static void
+mip_filter_linear(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ img_filter_func min_filter,
+ img_filter_func mag_filter,
+ 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 lod_in[TGSI_QUAD_SIZE],
+ enum tgsi_sampler_control control,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ int j;
+ float lod[TGSI_QUAD_SIZE];
+
+ compute_lambda_lod(sp_sview, sp_samp, s, t, p, lod_in, control, lod);
+
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ int level0 = sp_sview->base.u.tex.first_level + (int)lod[j];
- samp->level = level0;
- samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba0);
+ if (lod[j] < 0.0)
+ mag_filter(sp_sview, sp_samp, s[j], t[j], p[j],
+ sp_sview->base.u.tex.first_level,
+ sp_sview->faces[j], &rgba[0][j]);
- samp->level = level0+1;
- samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba1);
+ else if (level0 >= (int) texture->last_level)
+ min_filter(sp_sview, sp_samp, s[j], t[j], p[j], texture->last_level,
+ sp_sview->faces[j], &rgba[0][j]);
+
+ else {
+ float levelBlend = frac(lod[j]);
+ float rgbax[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE];
+ int c;
+
+ min_filter(sp_sview, sp_samp, s[j], t[j], p[j], level0,
+ sp_sview->faces[j], &rgbax[0][0]);
+ min_filter(sp_sview, sp_samp, s[j], t[j], p[j], level0+1,
+ sp_sview->faces[j], &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);
+ }
}
* \param c0 the LOD bias factors, or absolute LODs (depending on control)
*/
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],
+mip_filter_nearest(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ img_filter_func min_filter,
+ img_filter_func mag_filter,
+ 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 lod_in[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];
+ const struct pipe_resource *texture = sp_sview->base.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);
- } else {
- assert(control == tgsi_sampler_lod_explicit);
+ compute_lambda_lod(sp_sview, sp_samp, s, t, p, lod_in, control, lod);
- memcpy(lod, c0, sizeof(lod));
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ if (lod[j] < 0.0)
+ mag_filter(sp_sview, sp_samp, s[j], t[j], p[j],
+ sp_sview->base.u.tex.first_level,
+ sp_sview->faces[j], &rgba[0][j]);
+ else {
+ int level = sp_sview->base.u.tex.first_level + (int)(lod[j] + 0.5F);
+ level = MIN2(level, (int)texture->last_level);
+ min_filter(sp_sview, sp_samp, s[j], t[j], p[j],
+ level, sp_sview->faces[j], &rgba[0][j]);
+ }
}
- /* 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);
+ if (DEBUG_TEX) {
+ print_sample_4(__FUNCTION__, 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);
+}
+
+
+static void
+mip_filter_none(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ img_filter_func min_filter,
+ img_filter_func mag_filter,
+ 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 lod_in[TGSI_QUAD_SIZE],
+ enum tgsi_sampler_control control,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ float lod[TGSI_QUAD_SIZE];
+ int j;
+
+ compute_lambda_lod(sp_sview, sp_samp, s, t, p, lod_in, control, lod);
+
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ if (lod[j] < 0.0) {
+ mag_filter(sp_sview, sp_samp, s[j], t[j], p[j],
+ sp_sview->base.u.tex.first_level,
+ sp_sview->faces[j], &rgba[0][j]);
+ }
+ else {
+ min_filter(sp_sview, sp_samp, s[j], t[j], p[j],
+ sp_sview->base.u.tex.first_level,
+ sp_sview->faces[j], &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
+
+static void
+mip_filter_none_no_filter_select(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ img_filter_func min_filter,
+ img_filter_func mag_filter,
+ 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 lod_in[TGSI_QUAD_SIZE],
+ enum tgsi_sampler_control control,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ int j;
+
+ for (j = 0; j < TGSI_QUAD_SIZE; j++)
+ mag_filter(sp_sview, sp_samp, s[j], t[j], p[j],
+ sp_sview->base.u.tex.first_level,
+ sp_sview->faces[j], &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
-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],
- enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+create_filter_table(void)
{
- struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- float lambda;
- float lod[QUAD_SIZE];
+ unsigned i;
+ if (!weightLut) {
+ weightLut = (float *) MALLOC(WEIGHT_LUT_SIZE * sizeof(float));
- 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);
- } else {
- assert(control == tgsi_sampler_lod_explicit);
+ 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 sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ img_filter_func min_filter,
+ img_filter_func mag_filter,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ unsigned level,
+ const float dudx, const float dvdx,
+ const float dudy, const float dvdy,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+
+ // ??? Won't the image filters blow up if level is negative?
+ unsigned level0 = level > 0 ? level : 0;
+ float scaling = 1.0f / (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/4.0f;
+
+ /* 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+4.0f*C*A;
+ float box_u = 2.0f / d * sqrtf(d*C*F); /* box_u -> half of bbox with */
+ float box_v = 2.0f / d * sqrtf(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++) {
+ min_filter(sp_sview, sp_samp, s_buffer[jj], t_buffer[jj], p[jj],
+ level, sp_sview->faces[j], &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++) {
+ min_filter(sp_sview, sp_samp, s_buffer[jj], t_buffer[jj], p[jj],
+ level, sp_sview->faces[j], &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 */
+ min_filter(sp_sview, sp_samp, s[j], t[j], p[j], level,
+ sp_sview->faces[j], &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];
+ }
- memcpy(lod, c0, sizeof(lod));
+ 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 sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ img_filter_func min_filter,
+ img_filter_func mag_filter,
+ 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 lod_in[TGSI_QUAD_SIZE],
+ enum tgsi_sampler_control control,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ int level0;
+ float lambda;
+ float lod[TGSI_QUAD_SIZE];
+
+ float s_to_u = u_minify(texture->width0, sp_sview->base.u.tex.first_level);
+ float t_to_v = u_minify(texture->height0, sp_sview->base.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 ||
+ control == tgsi_sampler_lod_none ||
+ /* XXX FIXME */
+ control == tgsi_sampler_derivs_explicit) {
+ /* 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 = sp_samp->base.max_anisotropy * sp_samp->base.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) + sp_samp->base.lod_bias;
+ compute_lod(&sp_samp->base, control, lambda, lod_in, lod);
+ }
+ else {
+ assert(control == tgsi_sampler_lod_explicit ||
+ control == tgsi_sampler_lod_zero);
+ compute_lod(&sp_samp->base, control, sp_samp->base.lod_bias, lod_in, lod);
+ }
+
/* XXX: Take into account all lod values.
*/
lambda = lod[0];
+ level0 = sp_sview->base.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++)
+ min_filter(sp_sview, sp_samp, s[j], t[j], p[j], texture->last_level,
+ sp_sview->faces[j], &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(sp_sview, sp_samp, min_filter, mag_filter,
+ s, t, p, level0,
+ 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],
+ struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ img_filter_func min_filter,
+ img_filter_func mag_filter,
+ 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 lod_in[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];
-
- 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);
- } else {
- assert(control == tgsi_sampler_lod_explicit);
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ int j;
+ float lod[TGSI_QUAD_SIZE];
- memcpy(lod, c0, sizeof(lod));
- }
-
- /* XXX: Take into account all lod values.
- */
- lambda = lod[0];
- level0 = (int)lambda;
+ compute_lambda_lod(sp_sview, sp_samp, s, t, p, lod_in, control, lod);
- /* 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;
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ int level0 = sp_sview->base.u.tex.first_level + (int)lod[j];
- 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(sp_sview, sp_samp, s[j], t[j], p[j],
+ sp_sview->base.u.tex.first_level,
+ sp_sview->faces[j], &rgba[0][j]);
+ else
+ img_filter_2d_linear_repeat_POT(sp_sview, sp_samp, s[j], t[j], p[j],
+ sp_sview->base.texture->last_level,
+ sp_sview->faces[j], &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(sp_sview, sp_samp, s[j], t[j], p[j], level0,
+ sp_sview->faces[j], &rgbax[0][0]);
+ img_filter_2d_linear_repeat_POT(sp_sview, sp_samp, s[j], t[j], p[j], level0+1,
+ sp_sview->faces[j], &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);
+ }
+}
/**
* Do shadow/depth comparisons.
*/
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],
+sample_compare(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ 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_sampler_state *sampler = samp->sampler;
- int j, k0, k1, k2, k3;
- float val;
-
- samp->mip_filter(tgsi_sampler, s, t, p, c0, control, rgba);
+ const struct pipe_sampler_state *sampler = &sp_samp->base;
+ int j;
+ int k[4];
+ float pc[4];
+ const struct util_format_description *format_desc;
+ unsigned chan_type;
/**
* 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 (sp_sview->base.texture->target == PIPE_TEXTURE_2D_ARRAY ||
+ sp_sview->base.texture->target == PIPE_TEXTURE_CUBE) {
+ pc[0] = c0[0];
+ pc[1] = c0[1];
+ pc[2] = c0[2];
+ pc[3] = c0[3];
+ } else if (sp_sview->base.texture->target == PIPE_TEXTURE_CUBE_ARRAY) {
+ pc[0] = c1[0];
+ pc[1] = c1[1];
+ pc[2] = c1[2];
+ pc[3] = c1[3];
+ } else {
+ pc[0] = p[0];
+ pc[1] = p[1];
+ pc[2] = p[2];
+ pc[3] = p[3];
+ }
+
+ format_desc = util_format_description(sp_sview->base.format);
+ /* not entirely sure we couldn't end up with non-valid swizzle here */
+ chan_type = format_desc->swizzle[0] <= UTIL_FORMAT_SWIZZLE_W ?
+ format_desc->channel[format_desc->swizzle[0]].type :
+ UTIL_FORMAT_TYPE_FLOAT;
+ if (chan_type != UTIL_FORMAT_TYPE_FLOAT) {
+ /*
+ * clamping is a result of conversion to texture format, hence
+ * doesn't happen with floats. Technically also should do comparison
+ * in texture format (quantization!).
+ */
+ pc[0] = CLAMP(pc[0], 0.0F, 1.0F);
+ pc[1] = CLAMP(pc[1], 0.0F, 1.0F);
+ pc[2] = CLAMP(pc[2], 0.0F, 1.0F);
+ pc[3] = CLAMP(pc[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];
+ k[0] = pc[0] < rgba[0][0];
+ k[1] = pc[1] < rgba[0][1];
+ k[2] = pc[2] < rgba[0][2];
+ k[3] = pc[3] < 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];
+ k[0] = pc[0] <= rgba[0][0];
+ k[1] = pc[1] <= rgba[0][1];
+ k[2] = pc[2] <= rgba[0][2];
+ k[3] = pc[3] <= 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];
+ k[0] = pc[0] > rgba[0][0];
+ k[1] = pc[1] > rgba[0][1];
+ k[2] = pc[2] > rgba[0][2];
+ k[3] = pc[3] > 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];
+ k[0] = pc[0] >= rgba[0][0];
+ k[1] = pc[1] >= rgba[0][1];
+ k[2] = pc[2] >= rgba[0][2];
+ k[3] = pc[3] >= 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];
+ k[0] = pc[0] == rgba[0][0];
+ k[1] = pc[1] == rgba[0][1];
+ k[2] = pc[2] == rgba[0][2];
+ k[3] = pc[3] == 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];
+ k[0] = pc[0] != rgba[0][0];
+ k[1] = pc[1] != rgba[0][1];
+ k[2] = pc[2] != rgba[0][2];
+ k[3] = pc[3] != rgba[0][3];
break;
case PIPE_FUNC_ALWAYS:
- k0 = k1 = k2 = k3 = 1;
+ k[0] = k[1] = k[2] = k[3] = 1;
break;
case PIPE_FUNC_NEVER:
- k0 = k1 = k2 = k3 = 0;
+ k[0] = k[1] = k[2] = k[3] = 0;
break;
default:
- k0 = k1 = k2 = k3 = 0;
+ k[0] = k[1] = k[2] = k[3] = 0;
assert(0);
break;
}
- /* 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;
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ rgba[0][j] = k[j];
+ rgba[1][j] = k[j];
+ rgba[2][j] = k[j];
rgba[3][j] = 1.0F;
}
}
-/**
- * Use 3D texcoords to choose a cube face, then sample the 2D cube faces.
- * Put face info into the sampler faces[] array.
- */
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],
- enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
-{
- struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
- unsigned j;
- float ssss[4], tttt[4];
-
- /*
- major axis
- direction target sc tc ma
- ---------- ------------------------------- --- --- ---
- +rx TEXTURE_CUBE_MAP_POSITIVE_X_EXT -rz -ry rx
- -rx TEXTURE_CUBE_MAP_NEGATIVE_X_EXT +rz -ry rx
- +ry TEXTURE_CUBE_MAP_POSITIVE_Y_EXT +rx +rz ry
- -ry TEXTURE_CUBE_MAP_NEGATIVE_Y_EXT +rx -rz ry
- +rz TEXTURE_CUBE_MAP_POSITIVE_Z_EXT +rx -ry rz
- -rz TEXTURE_CUBE_MAP_NEGATIVE_Z_EXT -rx -ry rz
- */
+do_swizzling(const struct pipe_sampler_view *sview,
+ float in[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE],
+ float out[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ int j;
+ const unsigned swizzle_r = sview->swizzle_r;
+ const unsigned swizzle_g = sview->swizzle_g;
+ const unsigned swizzle_b = sview->swizzle_b;
+ const unsigned swizzle_a = sview->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];
+ }
- /* Choose the cube face and compute new s/t coords for the 2D face.
- *
- * Use the same cube face for all four pixels in the quad.
- *
- * This isn't ideal, but if we want to use a different cube face
- * per pixel in the quad, we'd have to also compute the per-face
- * LOD here too. That's because the four post-face-selection
- * texcoords are no longer related to each other (they're
- * per-face!) so we can't use subtraction to compute the partial
- * deriviates to compute the LOD. Doing so (near cube edges
- * anyway) gives us pretty much random values.
- */
- {
- /* 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 arx = fabsf(rx), ary = fabsf(ry), arz = fabsf(rz);
+ 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];
+ }
- 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++) {
- const float ima = -0.5F / fabsf(s[j]);
- ssss[j] = sign * p[j] * ima + 0.5F;
- tttt[j] = t[j] * ima + 0.5F;
- samp->faces[j] = face;
- }
- }
- 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++) {
- const float ima = -0.5F / fabsf(t[j]);
- ssss[j] = -s[j] * ima + 0.5F;
- tttt[j] = sign * -p[j] * ima + 0.5F;
- samp->faces[j] = face;
- }
- }
- 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]);
- ssss[j] = sign * -s[j] * ima + 0.5F;
- tttt[j] = t[j] * ima + 0.5F;
- samp->faces[j] = face;
- }
- }
+ 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];
}
- /* In our little pipeline, the compare stage is next. If compare
- * 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);
+ 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 wrap_nearest_func
get_nearest_unorm_wrap(unsigned mode)
{
}
-static compute_lambda_func
-get_lambda_func(const union sp_sampler_key key)
+/**
+ * Is swizzling needed for the given state key?
+ */
+static INLINE bool
+any_swizzle(const struct pipe_sampler_view *view)
{
- if (key.bits.processor == TGSI_PROCESSOR_VERTEX)
- return compute_lambda_vert;
-
- switch (key.bits.target) {
- case PIPE_TEXTURE_1D:
- return compute_lambda_1d;
- case PIPE_TEXTURE_2D:
- case PIPE_TEXTURE_CUBE:
- return compute_lambda_2d;
- case PIPE_TEXTURE_3D:
- return compute_lambda_3d;
- default:
- assert(0);
- return compute_lambda_1d;
- }
+ return (view->swizzle_r != PIPE_SWIZZLE_RED ||
+ view->swizzle_g != PIPE_SWIZZLE_GREEN ||
+ view->swizzle_b != PIPE_SWIZZLE_BLUE ||
+ view->swizzle_a != PIPE_SWIZZLE_ALPHA);
}
-static filter_func
-get_img_filter(const union sp_sampler_key key,
- unsigned filter,
- const struct pipe_sampler_state *sampler)
+static img_filter_func
+get_img_filter(const struct sp_sampler_view *sp_sview,
+ const struct pipe_sampler_state *sampler,
+ unsigned filter)
{
- switch (key.bits.target) {
+ switch (sp_sview->base.texture->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 &&
+ if (sp_sview->pot2d &&
sampler->wrap_s == sampler->wrap_t &&
sampler->normalized_coords)
{
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;
}
+static void
+sample_mip(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ 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 lod[TGSI_QUAD_SIZE],
+ enum tgsi_sampler_control control,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ mip_filter_func mip_filter;
+ img_filter_func min_img_filter = NULL;
+ img_filter_func mag_img_filter = NULL;
+
+ if (sp_sview->pot2d & sp_samp->min_mag_equal_repeat_linear) {
+ mip_filter = mip_filter_linear_2d_linear_repeat_POT;
+ }
+ else {
+ mip_filter = sp_samp->mip_filter;
+ min_img_filter = get_img_filter(sp_sview, &sp_samp->base, sp_samp->min_img_filter);
+ if (sp_samp->min_mag_equal) {
+ mag_img_filter = min_img_filter;
+ }
+ else {
+ mag_img_filter = get_img_filter(sp_sview, &sp_samp->base, sp_samp->base.mag_img_filter);
+ }
+ }
+
+ mip_filter(sp_sview, sp_samp, min_img_filter, mag_img_filter,
+ s, t, p, c0, lod, control, rgba);
+
+ if (sp_samp->base.compare_mode != PIPE_TEX_COMPARE_NONE) {
+ sample_compare(sp_sview, sp_samp, s, t, p, c0, lod, control, rgba);
+ }
+
+ if (sp_sview->need_swizzle) {
+ float rgba_temp[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE];
+ memcpy(rgba_temp, rgba, sizeof(rgba_temp));
+ do_swizzling(&sp_sview->base, rgba_temp, rgba);
+ }
+
+}
+
+
/**
- * Bind the given texture object and texture cache to the sampler varient.
+ * Use 3D texcoords to choose a cube face, then sample the 2D cube faces.
+ * Put face info into the sampler faces[] array.
*/
-void
-sp_sampler_varient_bind_texture( struct sp_sampler_varient *samp,
- struct softpipe_tex_tile_cache *tex_cache,
- const struct pipe_resource *texture )
+static void
+sample_cube(struct sp_sampler_view *sp_sview,
+ struct sp_sampler *sp_samp,
+ 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])
{
- const struct pipe_sampler_state *sampler = samp->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
+ ---------- ------------------------------- --- --- ---
+ +rx TEXTURE_CUBE_MAP_POSITIVE_X_EXT -rz -ry rx
+ -rx TEXTURE_CUBE_MAP_NEGATIVE_X_EXT +rz -ry rx
+ +ry TEXTURE_CUBE_MAP_POSITIVE_Y_EXT +rx +rz ry
+ -ry TEXTURE_CUBE_MAP_NEGATIVE_Y_EXT +rx -rz ry
+ +rz TEXTURE_CUBE_MAP_POSITIVE_Z_EXT +rx -ry rz
+ -rz TEXTURE_CUBE_MAP_NEGATIVE_Z_EXT -rx -ry rz
+ */
+
+ /* Choose the cube face and compute new s/t coords for the 2D face.
+ *
+ * Use the same cube face for all four pixels in the quad.
+ *
+ * This isn't ideal, but if we want to use a different cube face
+ * per pixel in the quad, we'd have to also compute the per-face
+ * LOD here too. That's because the four post-face-selection
+ * texcoords are no longer related to each other (they're
+ * per-face!) so we can't use subtraction to compute the partial
+ * deriviates to compute the LOD. Doing so (near cube edges
+ * anyway) gives us pretty much random values.
+ */
+ {
+ /* use the average of the four pixel's texcoords to choose the face */
+ 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 < 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;
+ sp_sview->faces[j] = face;
+ }
+ }
+ 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 < 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;
+ sp_sview->faces[j] = face;
+ }
+ }
+ 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 < 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;
+ sp_sview->faces[j] = face;
+ }
+ }
+ }
- samp->texture = texture;
- 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);
+ sample_mip(sp_sview, sp_samp, ssss, tttt, pppp, c0, c1, control, rgba);
}
-void
-sp_sampler_varient_destroy( struct sp_sampler_varient *samp )
+static void
+sp_get_dims(struct sp_sampler_view *sp_sview, int level,
+ int dims[4])
{
- FREE(samp);
-}
+ const struct pipe_sampler_view *view = &sp_sview->base;
+ 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] = view->u.tex.last_layer - view->u.tex.first_layer + 1;
+ /* fallthrough */
+ case PIPE_TEXTURE_1D:
+ return;
+ case PIPE_TEXTURE_2D_ARRAY:
+ dims[2] = view->u.tex.last_layer - view->u.tex.first_layer + 1;
+ /* 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] = (view->u.tex.last_layer - view->u.tex.first_layer + 1) / 6;
+ break;
+ case PIPE_BUFFER:
+ dims[0] /= util_format_get_blocksize(view->format);
+ return;
+ default:
+ assert(!"unexpected texture target in sp_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,
- const union sp_sampler_key key )
+static void
+sp_get_texels(struct sp_sampler_view *sp_sview,
+ 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])
{
- struct sp_sampler_varient *samp = CALLOC_STRUCT(sp_sampler_varient);
- if (!samp)
- return NULL;
+ union tex_tile_address addr;
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ int j, c;
+ const float *tx;
+ int width, height, depth;
+
+ addr.value = 0;
+ /* TODO write a better test for LOD */
+ addr.bits.level = lod[0];
- samp->sampler = sampler;
- samp->key = key;
+ width = u_minify(texture->width0, addr.bits.level);
+ height = u_minify(texture->height0, addr.bits.level);
+ depth = u_minify(texture->depth0, addr.bits.level);
+
+ 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_no_border(sp_sview, 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], sp_sview->base.u.tex.first_layer, sp_sview->base.u.tex.last_layer);
+ tx = get_texel_2d_no_border(sp_sview, 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_no_border(sp_sview, 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], sp_sview->base.u.tex.first_layer, sp_sview->base.u.tex.last_layer);
+ tx = get_texel_3d_no_border(sp_sview, 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_no_border(sp_sview, 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 (sp_sview->need_swizzle) {
+ float rgba_temp[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE];
+ memcpy(rgba_temp, rgba, sizeof(rgba_temp));
+ do_swizzling(&sp_sview->base, rgba_temp, rgba);
+ }
+}
+
+
+void *
+softpipe_create_sampler_state(struct pipe_context *pipe,
+ const struct pipe_sampler_state *sampler)
+{
+ struct sp_sampler *samp = CALLOC_STRUCT(sp_sampler);
+
+ samp->base = *sampler;
/* Note that (for instance) linear_texcoord_s and
* nearest_texcoord_s may be active at the same time, if the
samp->linear_texcoord_s = get_linear_wrap( sampler->wrap_s );
samp->linear_texcoord_t = get_linear_wrap( sampler->wrap_t );
samp->linear_texcoord_p = get_linear_wrap( sampler->wrap_r );
-
+
samp->nearest_texcoord_s = get_nearest_wrap( sampler->wrap_s );
samp->nearest_texcoord_t = get_nearest_wrap( sampler->wrap_t );
samp->nearest_texcoord_p = get_nearest_wrap( sampler->wrap_r );
samp->linear_texcoord_s = get_linear_unorm_wrap( sampler->wrap_s );
samp->linear_texcoord_t = get_linear_unorm_wrap( sampler->wrap_t );
samp->linear_texcoord_p = get_linear_unorm_wrap( sampler->wrap_r );
-
+
samp->nearest_texcoord_s = get_nearest_unorm_wrap( sampler->wrap_s );
samp->nearest_texcoord_t = get_nearest_unorm_wrap( sampler->wrap_t );
samp->nearest_texcoord_p = get_nearest_unorm_wrap( sampler->wrap_r );
}
-
- samp->compute_lambda = get_lambda_func( key );
- samp->min_img_filter = get_img_filter(key, sampler->min_img_filter, sampler);
- samp->mag_img_filter = get_img_filter(key, sampler->mag_img_filter, sampler);
+ samp->min_img_filter = sampler->min_img_filter;
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;
+ if (sampler->min_img_filter == sampler->mag_img_filter)
+ samp->mip_filter = mip_filter_none_no_filter_select;
else
samp->mip_filter = mip_filter_none;
break;
break;
case PIPE_TEX_MIPFILTER_LINEAR:
- if (key.bits.is_pot &&
- sampler->min_img_filter == sampler->mag_img_filter &&
+ if (sampler->min_img_filter == sampler->mag_img_filter &&
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)
- {
- samp->mip_filter = mip_filter_linear_2d_linear_repeat_POT;
+ sampler->min_img_filter == PIPE_TEX_FILTER_LINEAR &&
+ sampler->max_anisotropy <= 1) {
+ samp->min_mag_equal_repeat_linear = TRUE;
}
- else
- {
- samp->mip_filter = mip_filter_linear;
+ 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 = PIPE_TEX_FILTER_NEAREST;
+
+ /* on first access create the lookup table containing the filter weights. */
+ if (!weightLut) {
+ create_filter_table();
+ }
}
break;
}
+ if (samp->min_img_filter == sampler->mag_img_filter) {
+ samp->min_mag_equal = TRUE;
+ }
+
+ return (void *)samp;
+}
+
+
+compute_lambda_func
+softpipe_get_lambda_func(const struct pipe_sampler_view *view, unsigned shader)
+{
+ if (shader != PIPE_SHADER_FRAGMENT)
+ return compute_lambda_vert;
- if (sampler->compare_mode != PIPE_TEX_COMPARE_NONE) {
- samp->compare = sample_compare;
+ switch (view->texture->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;
+ default:
+ assert(0);
+ return compute_lambda_1d;
}
- else {
- /* Skip compare operation by promoting the mip_filter function
- * pointer:
- */
- samp->compare = samp->mip_filter;
+}
+
+
+struct pipe_sampler_view *
+softpipe_create_sampler_view(struct pipe_context *pipe,
+ struct pipe_resource *resource,
+ const struct pipe_sampler_view *templ)
+{
+ struct sp_sampler_view *sview = CALLOC_STRUCT(sp_sampler_view);
+ struct softpipe_resource *spr = (struct softpipe_resource *)resource;
+
+ if (sview) {
+ struct pipe_sampler_view *view = &sview->base;
+ *view = *templ;
+ view->reference.count = 1;
+ view->texture = NULL;
+ pipe_resource_reference(&view->texture, resource);
+ view->context = pipe;
+
+ if (any_swizzle(view)) {
+ sview->need_swizzle = TRUE;
+ }
+
+ if (resource->target == PIPE_TEXTURE_CUBE ||
+ resource->target == PIPE_TEXTURE_CUBE_ARRAY)
+ sview->get_samples = sample_cube;
+ else {
+ sview->get_samples = sample_mip;
+ }
+ sview->pot2d = spr->pot &&
+ (resource->target == PIPE_TEXTURE_2D ||
+ resource->target == PIPE_TEXTURE_RECT);
+
+ sview->xpot = util_logbase2( resource->width0 );
+ sview->ypot = util_logbase2( resource->height0 );
}
-
- if (key.bits.target == PIPE_TEXTURE_CUBE) {
- samp->base.get_samples = sample_cube;
+
+ return (struct pipe_sampler_view *) sview;
+}
+
+
+static void
+sp_tgsi_get_dims(struct tgsi_sampler *tgsi_sampler,
+ const unsigned sview_index,
+ int level, int dims[4])
+{
+ struct sp_tgsi_sampler *sp_samp = (struct sp_tgsi_sampler *)tgsi_sampler;
+
+ assert(sview_index < PIPE_MAX_SHADER_SAMPLER_VIEWS);
+ /* always have a view here but texture is NULL if no sampler view was set. */
+ if (!sp_samp->sp_sview[sview_index].base.texture) {
+ dims[0] = dims[1] = dims[2] = dims[3] = 0;
+ return;
}
- else {
- samp->faces[0] = 0;
- samp->faces[1] = 0;
- samp->faces[2] = 0;
- samp->faces[3] = 0;
+ sp_get_dims(&sp_samp->sp_sview[sview_index], level, dims);
+}
- /* Skip cube face determination by promoting the compare
- * function pointer:
- */
- samp->base.get_samples = samp->compare;
+
+static void
+sp_tgsi_get_samples(struct tgsi_sampler *tgsi_sampler,
+ const unsigned sview_index,
+ const unsigned sampler_index,
+ 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 lod[TGSI_QUAD_SIZE],
+ float derivs[3][2][TGSI_QUAD_SIZE],
+ const int8_t offset[3],
+ enum tgsi_sampler_control control,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ struct sp_tgsi_sampler *sp_samp = (struct sp_tgsi_sampler *)tgsi_sampler;
+
+ assert(sview_index < PIPE_MAX_SHADER_SAMPLER_VIEWS);
+ assert(sampler_index < PIPE_MAX_SAMPLERS);
+ assert(sp_samp->sp_sampler[sampler_index]);
+ /* always have a view here but texture is NULL if no sampler view was set. */
+ if (!sp_samp->sp_sview[sview_index].base.texture) {
+ int i, j;
+ for (j = 0; j < TGSI_NUM_CHANNELS; j++) {
+ for (i = 0; i < TGSI_QUAD_SIZE; i++) {
+ rgba[j][i] = 0.0f;
+ }
+ }
+ return;
}
+ sp_samp->sp_sview[sview_index].get_samples(&sp_samp->sp_sview[sview_index],
+ sp_samp->sp_sampler[sampler_index],
+ s, t, p, c0, lod, control, rgba);
+}
+
+
+static void
+sp_tgsi_get_texel(struct tgsi_sampler *tgsi_sampler,
+ const unsigned sview_index,
+ const int i[TGSI_QUAD_SIZE],
+ const int j[TGSI_QUAD_SIZE], const int k[TGSI_QUAD_SIZE],
+ const int lod[TGSI_QUAD_SIZE], const int8_t offset[3],
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ struct sp_tgsi_sampler *sp_samp = (struct sp_tgsi_sampler *)tgsi_sampler;
+
+ assert(sview_index < PIPE_MAX_SHADER_SAMPLER_VIEWS);
+ /* always have a view here but texture is NULL if no sampler view was set. */
+ if (!sp_samp->sp_sview[sview_index].base.texture) {
+ int i, j;
+ for (j = 0; j < TGSI_NUM_CHANNELS; j++) {
+ for (i = 0; i < TGSI_QUAD_SIZE; i++) {
+ rgba[j][i] = 0.0f;
+ }
+ }
+ return;
+ }
+ sp_get_texels(&sp_samp->sp_sview[sview_index], i, j, k, lod, offset, rgba);
+}
+
+
+struct sp_tgsi_sampler *
+sp_create_tgsi_sampler(void)
+{
+ struct sp_tgsi_sampler *samp = CALLOC_STRUCT(sp_tgsi_sampler);
+ if (!samp)
+ return NULL;
+
+ samp->base.get_dims = sp_tgsi_get_dims;
+ samp->base.get_samples = sp_tgsi_get_samples;
+ samp->base.get_texel = sp_tgsi_get_texel;
return samp;
}
+
projects / mesa.git / blobdiff