/**************************************************************************
*
- * 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/format/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"
* of improperly weighted linear-filtered textures.
* The tests/texwrap.c demo is a good test.
*/
-static INLINE float
+static inline float
frac(float f)
{
return f - floorf(f);
/**
* Linear interpolation macro
*/
-static INLINE float
+static inline float
lerp(float a, float v0, float v1)
{
return v0 + a * (v1 - v0);
* optimization! If we find that's not true on some systems, convert
* to a macro.
*/
-static INLINE float
+static inline float
lerp_2d(float a, float b,
float v00, float v10, float v01, float v11)
{
/**
* As above, but 3D interpolation of 8 values.
*/
-static INLINE float
+static inline float
lerp_3d(float a, float b, float c,
float v000, float v100, float v010, float v110,
float v001, float v101, float v011, float v111)
* value. To avoid that problem we add a large multiple of the size
* (rather than using a conditional).
*/
-static INLINE int
+static inline int
repeat(int coord, unsigned 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 offset, 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);
- }
+ const int i = util_ifloor(s * size);
+ *icoord = repeat(i + offset, size);
}
static void
-wrap_nearest_clamp(const float s[4], unsigned size, int icoord[4])
+wrap_nearest_clamp(float s, unsigned size, int offset, 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);
- }
+ s *= size;
+ s += offset;
+ if (s <= 0.0F)
+ *icoord = 0;
+ else if (s >= size)
+ *icoord = size - 1;
+ else
+ *icoord = util_ifloor(s);
}
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 offset, 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);
- }
+ const float min = 0.5F;
+ const float max = (float)size - 0.5F;
+
+ s *= size;
+ s += offset;
+
+ if (s < min)
+ *icoord = 0;
+ else if (s > max)
+ *icoord = size - 1;
+ else
+ *icoord = util_ifloor(s);
}
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 offset, 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);
- }
-}
+ const float min = -0.5F;
+ const float max = size + 0.5F;
+ s *= size;
+ s += offset;
+ if (s <= min)
+ *icoord = -1;
+ else if (s >= max)
+ *icoord = size;
+ else
+ *icoord = util_ifloor(s);
+}
static void
-wrap_nearest_mirror_repeat(const float s[4], unsigned size, int icoord[4])
+wrap_nearest_mirror_repeat(float s, unsigned size, int offset, 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);
- }
+ int flr;
+ float u;
+
+ s += (float)offset / size;
+ flr = util_ifloor(s);
+ 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])
+wrap_nearest_mirror_clamp(float s, unsigned size, int offset, int *icoord)
{
- 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);
- }
+ /* s limited to [0,1] */
+ /* i limited to [0,size-1] */
+ const float u = fabsf(s * size + offset);
+ if (u <= 0.0F)
+ *icoord = 0;
+ else if (u >= size)
+ *icoord = size - 1;
+ else
+ *icoord = util_ifloor(u);
}
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 offset, 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 min = 0.5F;
+ const float max = (float)size - 0.5F;
+ const float u = fabsf(s * size + offset);
+
+ if (u < min)
+ *icoord = 0;
+ else if (u > max)
+ *icoord = size - 1;
+ else
+ *icoord = util_ifloor(u);
}
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 offset, 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);
- }
+ /* u limited to [-0.5, size-0.5] */
+ const float min = -0.5F;
+ const float max = (float)size + 0.5F;
+ const float u = fabsf(s * size + offset);
+
+ if (u < min)
+ *icoord = -1;
+ else if (u > max)
+ *icoord = size;
+ else
+ *icoord = util_ifloor(u);
}
/**
- * 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 offset,
+ 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);
- }
+ const float u = s * size - 0.5F;
+ *icoord0 = repeat(util_ifloor(u) + offset, 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 offset,
+ 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);
- }
+ const float u = CLAMP(s * size + offset, 0.0F, (float)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 offset,
+ 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);
- }
+ const float u = CLAMP(s * size + offset, 0.0F, (float)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 offset,
+ 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);
- }
+ const float min = -1.0F;
+ const float max = (float)size + 0.5F;
+ const float u = CLAMP(s * size + offset, min, max) - 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 offset,
+ 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;
+ int flr;
+ float u;
+ bool no_mirror;
+
+ s += (float)offset / size;
+ flr = util_ifloor(s);
+ no_mirror = !(flr & 1);
+
+ u = frac(s);
+ if (no_mirror) {
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);
+ } else {
+ u = 1.0F - u;
+ u = u * size + 0.5F;
}
+
+ *icoord0 = util_ifloor(u);
+ *icoord1 = (no_mirror) ? *icoord0 + 1 : *icoord0 - 1;
+
+ if (*icoord0 < 0)
+ *icoord0 = 1 + *icoord0;
+ if (*icoord0 >= (int) size)
+ *icoord0 = size - 1;
+
+ if (*icoord1 >= (int) size)
+ *icoord1 = size - 1;
+ if (*icoord1 < 0)
+ *icoord1 = 1 + *icoord1;
+
+ *w = (no_mirror) ? frac(u) : frac(1.0f - u);
}
static void
-wrap_linear_mirror_clamp(const float s[4], unsigned size,
- int icoord0[4], int icoord1[4], float w[4])
+wrap_linear_mirror_clamp(float s, unsigned size, int offset,
+ int *icoord0, int *icoord1, float *w)
{
- 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);
- }
+ float u = fabsf(s * size + offset);
+ if (u >= size)
+ u = (float) 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])
+wrap_linear_mirror_clamp_to_edge(float s, unsigned size, int offset,
+ int *icoord0, int *icoord1, float *w)
{
- 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);
- }
+ float u = fabsf(s * size + offset);
+ if (u >= size)
+ u = (float) 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 offset,
+ 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);
- }
+ const float min = -0.5F;
+ const float max = size + 0.5F;
+ const float t = fabsf(s * size + offset);
+ const float u = CLAMP(t, min, max) - 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 offset, int *icoord)
{
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- int i = util_ifloor(s[ch]);
- icoord[ch]= CLAMP(i, 0, (int) size-1);
- }
+ const int i = util_ifloor(s);
+ *icoord = CLAMP(i + offset, 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 offset, 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 + offset, -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 offset, 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 + offset, 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 offset,
+ 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 */
+ const float u = CLAMP(s + offset - 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 offset,
+ 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);
- }
+ const float u = CLAMP(s + offset, -0.5F, (float) size + 0.5F) - 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 offset,
+ 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);
- }
+ const float u = CLAMP(s + offset, +0.5F, (float) size - 0.5F) - 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(const float coord[4], unsigned size, int layer[4])
+static inline int
+coord_to_layer(float coord, unsigned first_layer, unsigned last_layer)
{
- uint ch;
- for (ch = 0; ch < 4; ch++) {
- int c = util_ifloor(coord[ch] + 0.5F);
- layer[ch] = CLAMP(c, 0, size - 1);
- }
+ const int c = util_ifloor(coord + 0.5F);
+ return CLAMP(c, (int)first_layer, (int)last_layer);
+}
+
+static void
+compute_gradient_1d(const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ float derivs[3][2][TGSI_QUAD_SIZE])
+{
+ memset(derivs, 0, 6 * TGSI_QUAD_SIZE * sizeof(float));
+ derivs[0][0][0] = s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT];
+ derivs[0][1][0] = s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT];
+}
+
+static float
+compute_lambda_1d_explicit_gradients(const struct sp_sampler_view *sview,
+ const float derivs[3][2][TGSI_QUAD_SIZE],
+ uint quad)
+{
+ const struct pipe_resource *texture = sview->base.texture;
+ const float dsdx = fabsf(derivs[0][0][quad]);
+ const float dsdy = fabsf(derivs[0][1][quad]);
+ const float rho = MAX2(dsdx, dsdy) * u_minify(texture->width0, sview->base.u.tex.first_level);
+ return util_fast_log2(rho);
}
* derivatives w.r.t X and Y, then compute lambda (level of detail).
*/
static float
-compute_lambda_1d(const struct sp_sampler_variant *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])
+{
+ float derivs[3][2][TGSI_QUAD_SIZE];
+ compute_gradient_1d(s, t, p, derivs);
+ return compute_lambda_1d_explicit_gradients(sview, derivs, 0);
+}
+
+
+static void
+compute_gradient_2d(const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ float derivs[3][2][TGSI_QUAD_SIZE])
{
- const struct pipe_resource *texture = samp->view->texture;
- float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]);
- float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]);
- float rho = MAX2(dsdx, dsdy) * u_minify(texture->width0, samp->view->u.tex.first_level);
+ memset(derivs, 0, 6 * TGSI_QUAD_SIZE * sizeof(float));
+ derivs[0][0][0] = s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT];
+ derivs[0][1][0] = s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT];
+ derivs[1][0][0] = t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT];
+ derivs[1][1][0] = t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT];
+}
+static float
+compute_lambda_2d_explicit_gradients(const struct sp_sampler_view *sview,
+ const float derivs[3][2][TGSI_QUAD_SIZE],
+ uint quad)
+{
+ const struct pipe_resource *texture = sview->base.texture;
+ const float dsdx = fabsf(derivs[0][0][quad]);
+ const float dsdy = fabsf(derivs[0][1][quad]);
+ const float dtdx = fabsf(derivs[1][0][quad]);
+ const float dtdy = fabsf(derivs[1][1][quad]);
+ const float maxx = MAX2(dsdx, dsdy) * u_minify(texture->width0, sview->base.u.tex.first_level);
+ const float maxy = MAX2(dtdx, dtdy) * u_minify(texture->height0, sview->base.u.tex.first_level);
+ const float rho = MAX2(maxx, maxy);
return util_fast_log2(rho);
}
static float
-compute_lambda_2d(const struct sp_sampler_variant *samp,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE])
-{
- const struct pipe_resource *texture = samp->view->texture;
- float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]);
- float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]);
- float dtdx = fabsf(t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]);
- float dtdy = fabsf(t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]);
- float maxx = MAX2(dsdx, dsdy) * u_minify(texture->width0, samp->view->u.tex.first_level);
- float maxy = MAX2(dtdx, dtdy) * u_minify(texture->height0, samp->view->u.tex.first_level);
- float rho = MAX2(maxx, maxy);
+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])
+{
+ float derivs[3][2][TGSI_QUAD_SIZE];
+ compute_gradient_2d(s, t, p, derivs);
+ return compute_lambda_2d_explicit_gradients(sview, derivs, 0);
+}
+
+
+static void
+compute_gradient_3d(const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ float derivs[3][2][TGSI_QUAD_SIZE])
+{
+ memset(derivs, 0, 6 * TGSI_QUAD_SIZE * sizeof(float));
+ derivs[0][0][0] = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]);
+ derivs[0][1][0] = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]);
+ derivs[1][0][0] = fabsf(t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]);
+ derivs[1][1][0] = fabsf(t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]);
+ derivs[2][0][0] = fabsf(p[QUAD_BOTTOM_RIGHT] - p[QUAD_BOTTOM_LEFT]);
+ derivs[2][1][0] = fabsf(p[QUAD_TOP_LEFT] - p[QUAD_BOTTOM_LEFT]);
+}
+
+static float
+compute_lambda_3d_explicit_gradients(const struct sp_sampler_view *sview,
+ const float derivs[3][2][TGSI_QUAD_SIZE],
+ uint quad)
+{
+ const struct pipe_resource *texture = sview->base.texture;
+ const float dsdx = fabsf(derivs[0][0][quad]);
+ const float dsdy = fabsf(derivs[0][1][quad]);
+ const float dtdx = fabsf(derivs[1][0][quad]);
+ const float dtdy = fabsf(derivs[1][1][quad]);
+ const float dpdx = fabsf(derivs[2][0][quad]);
+ const float dpdy = fabsf(derivs[2][1][quad]);
+ const float maxx = MAX2(dsdx, dsdy) * u_minify(texture->width0, sview->base.u.tex.first_level);
+ const float maxy = MAX2(dtdx, dtdy) * u_minify(texture->height0, sview->base.u.tex.first_level);
+ const float maxz = MAX2(dpdx, dpdy) * u_minify(texture->depth0, sview->base.u.tex.first_level);
+ const float rho = MAX3(maxx, maxy, maxz);
return util_fast_log2(rho);
}
static float
-compute_lambda_3d(const struct sp_sampler_variant *samp,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE])
-{
- const struct pipe_resource *texture = samp->view->texture;
- float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]);
- float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]);
- float dtdx = fabsf(t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]);
- float dtdy = fabsf(t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]);
- float dpdx = fabsf(p[QUAD_BOTTOM_RIGHT] - p[QUAD_BOTTOM_LEFT]);
- float dpdy = fabsf(p[QUAD_TOP_LEFT] - p[QUAD_BOTTOM_LEFT]);
- float maxx = MAX2(dsdx, dsdy) * u_minify(texture->width0, samp->view->u.tex.first_level);
- float maxy = MAX2(dtdx, dtdy) * u_minify(texture->height0, samp->view->u.tex.first_level);
- float maxz = MAX2(dpdx, dpdy) * u_minify(texture->depth0, samp->view->u.tex.first_level);
- float rho;
-
- rho = MAX2(maxx, maxy);
- rho = MAX2(rho, maxz);
+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])
+{
+ float derivs[3][2][TGSI_QUAD_SIZE];
+ compute_gradient_3d(s, t, p, derivs);
+ return compute_lambda_3d_explicit_gradients(sview, derivs, 0);
+}
+
+
+static float
+compute_lambda_cube_explicit_gradients(const struct sp_sampler_view *sview,
+ const float derivs[3][2][TGSI_QUAD_SIZE],
+ uint quad)
+{
+ const struct pipe_resource *texture = sview->base.texture;
+ const float dsdx = fabsf(derivs[0][0][quad]);
+ const float dsdy = fabsf(derivs[0][1][quad]);
+ const float dtdx = fabsf(derivs[1][0][quad]);
+ const float dtdy = fabsf(derivs[1][1][quad]);
+ const float dpdx = fabsf(derivs[2][0][quad]);
+ const float dpdy = fabsf(derivs[2][1][quad]);
+ const float maxx = MAX2(dsdx, dsdy);
+ const float maxy = MAX2(dtdx, dtdy);
+ const float maxz = MAX2(dpdx, dpdy);
+ const float rho = MAX3(maxx, maxy, maxz) * u_minify(texture->width0, sview->base.u.tex.first_level) / 2.0f;
return util_fast_log2(rho);
}
+static float
+compute_lambda_cube(const struct sp_sampler_view *sview,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE])
+{
+ float derivs[3][2][TGSI_QUAD_SIZE];
+ compute_gradient_3d(s, t, p, derivs);
+ return compute_lambda_cube_explicit_gradients(sview, derivs, 0);
+}
/**
* Compute lambda for a vertex texture sampler.
* Since there aren't derivatives to use, just return 0.
*/
static float
-compute_lambda_vert(const struct sp_sampler_variant *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;
}
+compute_lambda_from_grad_func
+softpipe_get_lambda_from_grad_func(const struct pipe_sampler_view *view,
+ enum pipe_shader_type shader)
+{
+ switch (view->target) {
+ case PIPE_BUFFER:
+ case PIPE_TEXTURE_1D:
+ case PIPE_TEXTURE_1D_ARRAY:
+ return compute_lambda_1d_explicit_gradients;
+ case PIPE_TEXTURE_2D:
+ case PIPE_TEXTURE_2D_ARRAY:
+ case PIPE_TEXTURE_RECT:
+ return compute_lambda_2d_explicit_gradients;
+ case PIPE_TEXTURE_CUBE:
+ case PIPE_TEXTURE_CUBE_ARRAY:
+ return compute_lambda_cube_explicit_gradients;
+ case PIPE_TEXTURE_3D:
+ return compute_lambda_3d_explicit_gradients;
+ default:
+ assert(0);
+ return compute_lambda_1d_explicit_gradients;
+ }
+}
+
/**
* Get a texel from a texture, using the texture tile cache.
* \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_variant *samp,
- union tex_tile_address addr, int x, int y)
+static inline const float *
+get_texel_buffer_no_border(const struct sp_sampler_view *sp_sview,
+ union tex_tile_address addr, int x, unsigned elmsize)
{
const struct softpipe_tex_cached_tile *tile;
+ addr.bits.x = x * elmsize / TEX_TILE_SIZE;
+ assert(x * elmsize / TEX_TILE_SIZE == addr.bits.x);
+
+ x %= TEX_TILE_SIZE / elmsize;
+
+ tile = sp_get_cached_tile_tex(sp_sview->cache, addr);
+
+ return &tile->data.color[0][x][0];
+}
+
- addr.bits.x = x / TILE_SIZE;
- addr.bits.y = y / TILE_SIZE;
- y %= TILE_SIZE;
- x %= TILE_SIZE;
+static inline const float *
+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;
- 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_variant *samp,
- union tex_tile_address addr, int x, int y)
+static inline const float *
+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->view->texture;
- unsigned level = addr.bits.level;
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const 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.f;
+ return sp_sview->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;
}
/* Gather a quad of adjacent texels within a tile:
*/
-static INLINE void
-get_texel_quad_2d_no_border_single_tile(const struct sp_sampler_variant *samp,
- union tex_tile_address addr,
- unsigned x, unsigned y,
- const float *out[4])
+static inline void
+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_variant *samp,
- 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 );
-}
-
-/* Can involve a lot of unnecessary checks for border color:
- */
-static INLINE void
-get_texel_quad_2d(const struct sp_sampler_variant *samp,
- union tex_tile_address addr,
- int x0, int y0,
- int x1, int y1,
- const float *out[4])
+static inline void
+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( 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_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 );
}
-
/* 3d variants:
*/
-static INLINE const float *
-get_texel_3d_no_border(const struct sp_sampler_variant *samp,
+static inline const float *
+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_variant *samp,
- union tex_tile_address addr, int x, int y, int z)
+static inline const float *
+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->view->texture;
- unsigned level = addr.bits.level;
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const 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.f;
+ return sp_sview->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, z );
}
}
/* Get texel pointer for 1D array texture */
-static INLINE const float *
-get_texel_1d_array(const struct sp_sampler_variant *samp,
+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 = samp->view->texture;
- unsigned level = addr.bits.level;
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const unsigned level = addr.bits.level;
if (x < 0 || x >= (int) u_minify(texture->width0, level)) {
- return samp->sampler->border_color.f;
+ return sp_sview->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);
}
}
/* Get texel pointer for 2D array texture */
-static INLINE const float *
-get_texel_2d_array(const struct sp_sampler_variant *samp,
+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 = samp->view->texture;
- unsigned level = addr.bits.level;
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const unsigned level = addr.bits.level;
- assert(layer < texture->array_size);
+ assert(layer < (int) texture->array_size);
+ assert(layer >= 0);
if (x < 0 || x >= (int) u_minify(texture->width0, level) ||
y < 0 || y >= (int) u_minify(texture->height0, level)) {
- return samp->sampler->border_color.f;
+ return sp_sview->border_color.f;
}
else {
- return get_texel_3d_no_border(samp, addr, x, y, layer);
+ return get_texel_3d_no_border(sp_sview, addr, x, y, layer);
+ }
+}
+
+
+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, int layer, unsigned face)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const unsigned level = addr.bits.level;
+ 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);
}
+
+ return get_texel_3d_no_border(sp_sview, addr, new_x, new_y, layer + face);
}
+/* 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;
+ const 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_sview->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.
* If level = 2, then we'll return 64 (the width at level=2).
* Return 1 if level > base_pot.
*/
-static INLINE unsigned
+static inline unsigned
pot_level_size(unsigned base_pot, unsigned level)
{
return (base_pot >= level) ? (1 << (base_pot - level)) : 1;
static void
-print_sample(const char *function, float rgba[NUM_CHANNELS][QUAD_SIZE])
+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,
/* 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_variant *samp = sp_sampler_variant(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; */
+static inline void
+img_filter_2d_linear_repeat_POT(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
+{
+ const unsigned xpot = pot_level_size(sp_sview->xpot, args->level);
+ const unsigned ypot = pot_level_size(sp_sview->ypot, args->level);
+ const int xmax = (xpot - 1) & (TEX_TILE_SIZE - 1); /* MIN2(TEX_TILE_SIZE, xpot) - 1; */
+ const 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;
-
- for (j = 0; j < QUAD_SIZE; j++) {
- int c;
-
- float u = s[j] * xpot - 0.5F;
- float v = t[j] * ypot - 0.5F;
+ const float u = (args->s * xpot - 0.5F) + args->offset[0];
+ const float v = (args->t * ypot - 0.5F) + args->offset[1];
- int uflr = util_ifloor(u);
- int vflr = util_ifloor(v);
+ const int uflr = util_ifloor(u);
+ const int vflr = util_ifloor(v);
- float xw = u - (float)uflr;
- float yw = v - (float)vflr;
+ const float xw = u - (float)uflr;
+ const float yw = v - (float)vflr;
- int x0 = uflr & (xpot - 1);
- int y0 = vflr & (ypot - 1);
+ const int x0 = uflr & (xpot - 1);
+ const int y0 = vflr & (ypot - 1);
- const float *tx[4];
+ 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);
- }
+ addr.value = 0;
+ addr.bits.level = args->level;
+ addr.bits.z = sp_sview->base.u.tex.first_layer;
- /* 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]);
- }
+ /* 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 {
+ const unsigned x1 = (x0 + 1) & (xpot - 1);
+ const unsigned y1 = (y0 + 1) & (ypot - 1);
+ get_texel_quad_2d_no_border(sp_sview, addr, x0, y0, x1, y1, tx);
+ }
+
+ /* interpolate R, G, B, A */
+ for (c = 0; c < TGSI_NUM_CHANNELS; c++) {
+ rgba[TGSI_NUM_CHANNELS*c] = lerp_2d(xw, yw,
+ tx[0][c], tx[1][c],
+ tx[2][c], tx[3][c]);
}
if (DEBUG_TEX) {
}
-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])
+static inline void
+img_filter_2d_nearest_repeat_POT(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
{
- const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
- unsigned j;
- unsigned level = samp->level;
- unsigned xpot = pot_level_size(samp->xpot, level);
- unsigned ypot = pot_level_size(samp->ypot, level);
+ const unsigned xpot = pot_level_size(sp_sview->xpot, args->level);
+ const unsigned ypot = pot_level_size(sp_sview->ypot, args->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;
+ const float u = args->s * xpot + args->offset[0];
+ const float v = args->t * ypot + args->offset[1];
- float u = s[j] * xpot;
- float v = t[j] * ypot;
+ const int uflr = util_ifloor(u);
+ const int vflr = util_ifloor(v);
- int uflr = util_ifloor(u);
- int vflr = util_ifloor(v);
+ const int x0 = uflr & (xpot - 1);
+ const int y0 = vflr & (ypot - 1);
- int x0 = uflr & (xpot - 1);
- int y0 = vflr & (ypot - 1);
-
- const float *out = get_texel_2d_no_border(samp, addr, x0, y0);
+ addr.value = 0;
+ addr.bits.level = args->level;
+ addr.bits.z = sp_sview->base.u.tex.first_layer;
- for (c = 0; c < 4; c++) {
- rgba[c][j] = out[c];
- }
- }
+ out = get_texel_2d_no_border(sp_sview, addr, x0, y0);
+ for (c = 0; c < TGSI_NUM_CHANNELS; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = 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])
+static inline void
+img_filter_2d_nearest_clamp_POT(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
{
- const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
- unsigned j;
- unsigned level = samp->level;
- unsigned xpot = pot_level_size(samp->xpot, level);
- unsigned ypot = pot_level_size(samp->ypot, level);
+ const unsigned xpot = pot_level_size(sp_sview->xpot, args->level);
+ const unsigned ypot = pot_level_size(sp_sview->ypot, args->level);
union tex_tile_address addr;
+ int c;
+
+ const float u = args->s * xpot + args->offset[0];
+ const float v = args->t * ypot + args->offset[1];
+
+ int x0, y0;
+ const float *out;
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = args->level;
+ addr.bits.z = sp_sview->base.u.tex.first_layer;
+
+ 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_NUM_CHANNELS; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = out[c];
+
+ if (DEBUG_TEX) {
+ print_sample(__FUNCTION__, rgba);
+ }
+}
- for (j = 0; j < QUAD_SIZE; j++) {
- int c;
- float u = s[j] * xpot;
- float v = t[j] * ypot;
+static void
+img_filter_1d_nearest(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const int width = u_minify(texture->width0, args->level);
+ int x;
+ union tex_tile_address addr;
+ const float *out;
+ int c;
- int x0, y0;
- const float *out;
+ assert(width > 0);
- x0 = util_ifloor(u);
- if (x0 < 0)
- x0 = 0;
- else if (x0 > xpot - 1)
- x0 = xpot - 1;
+ addr.value = 0;
+ addr.bits.level = args->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);
+ sp_samp->nearest_texcoord_s(args->s, width, args->offset[0], &x);
- for (c = 0; c < 4; c++) {
- rgba[c][j] = out[c];
- }
- }
+ out = get_texel_1d_array(sp_sview, sp_samp, addr, x,
+ sp_sview->base.u.tex.first_layer);
+ for (c = 0; c < TGSI_NUM_CHANNELS; 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_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
- unsigned level0, j;
- int width;
- int x[4];
+img_filter_1d_array_nearest(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const int width = u_minify(texture->width0, args->level);
+ const int layer = coord_to_layer(args->t, sp_sview->base.u.tex.first_layer,
+ sp_sview->base.u.tex.last_layer);
+ int x;
union tex_tile_address addr;
-
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
+ const float *out;
+ int c;
assert(width > 0);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = args->level;
- samp->nearest_texcoord_s(s, width, x);
+ sp_samp->nearest_texcoord_s(args->s, width, args->offset[0], &x);
- 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_NUM_CHANNELS; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = out[c];
if (DEBUG_TEX) {
print_sample(__FUNCTION__, rgba);
static void
-img_filter_1d_array_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_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
- unsigned level0, j;
- int width;
- int x[4], layer[4];
+img_filter_2d_nearest(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const int width = u_minify(texture->width0, args->level);
+ const int height = u_minify(texture->height0, args->level);
+ int x, y;
union tex_tile_address addr;
-
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
+ const float *out;
+ int c;
assert(width > 0);
-
+ assert(height > 0);
+
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = args->level;
+ addr.bits.z = sp_sview->base.u.tex.first_layer;
- samp->nearest_texcoord_s(s, width, x);
- wrap_array_layer(t, texture->array_size, layer);
+ sp_samp->nearest_texcoord_s(args->s, width, args->offset[0], &x);
+ sp_samp->nearest_texcoord_t(args->t, height, args->offset[1], &y);
- for (j = 0; j < QUAD_SIZE; j++) {
- const float *out = get_texel_1d_array(samp, addr, x[j], layer[j]);
- int c;
- for (c = 0; c < 4; c++) {
- rgba[c][j] = out[c];
- }
- }
+ out = get_texel_2d(sp_sview, sp_samp, addr, x, y);
+ for (c = 0; c < TGSI_NUM_CHANNELS; 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_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
- unsigned level0, j;
- int width, height;
- int x[4], y[4];
+img_filter_2d_array_nearest(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const int width = u_minify(texture->width0, args->level);
+ const int height = u_minify(texture->height0, args->level);
+ const int layer = coord_to_layer(args->p, sp_sview->base.u.tex.first_layer,
+ sp_sview->base.u.tex.last_layer);
+ int x, y;
union tex_tile_address addr;
-
-
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
+ const float *out;
+ int c;
assert(width > 0);
assert(height > 0);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = args->level;
- samp->nearest_texcoord_s(s, width, x);
- samp->nearest_texcoord_t(t, height, y);
+ sp_samp->nearest_texcoord_s(args->s, width, args->offset[0], &x);
+ sp_samp->nearest_texcoord_t(args->t, height, args->offset[1], &y);
- 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_NUM_CHANNELS; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = out[c];
if (DEBUG_TEX) {
print_sample(__FUNCTION__, rgba);
static void
-img_filter_2d_array_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_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
- unsigned level0, j;
- int width, height;
- int x[4], y[4], layer[4];
+img_filter_cube_nearest(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const int width = u_minify(texture->width0, args->level);
+ const int height = u_minify(texture->height0, args->level);
+ const int layerface = args->face_id + sp_sview->base.u.tex.first_layer;
+ int x, y;
union tex_tile_address addr;
-
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
+ const float *out;
+ int c;
assert(width > 0);
assert(height > 0);
addr.value = 0;
- addr.bits.level = samp->level;
-
- samp->nearest_texcoord_s(s, width, x);
- samp->nearest_texcoord_t(t, height, y);
- wrap_array_layer(p, texture->array_size, layer);
+ addr.bits.level = args->level;
- for (j = 0; j < QUAD_SIZE; j++) {
- const float *out = get_texel_2d_array(samp, addr, x[j], y[j], layer[j]);
- int c;
- for (c = 0; c < 4; c++) {
- rgba[c][j] = out[c];
- }
+ /*
+ * 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(args->s, width, args->offset[0], &x);
+ wrap_nearest_clamp_to_edge(args->t, height, args->offset[1], &y);
+ } else {
+ /* Would probably make sense to ignore mode and just do edge clamp */
+ sp_samp->nearest_texcoord_s(args->s, width, args->offset[0], &x);
+ sp_samp->nearest_texcoord_t(args->t, height, args->offset[1], &y);
}
+ out = get_texel_cube_array(sp_sview, sp_samp, addr, x, y, layerface);
+ for (c = 0; c < TGSI_NUM_CHANNELS; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = out[c];
+
if (DEBUG_TEX) {
print_sample(__FUNCTION__, rgba);
}
}
-
-static INLINE union tex_tile_address
-face(union tex_tile_address addr, unsigned face )
-{
- addr.bits.face = face;
- return addr;
-}
-
-
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_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
- const unsigned *faces = samp->faces; /* zero when not cube-mapping */
- unsigned level0, j;
- int width, height;
- int x[4], y[4];
+img_filter_cube_array_nearest(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const int width = u_minify(texture->width0, args->level);
+ const int height = u_minify(texture->height0, args->level);
+ const int layerface = CLAMP(6 * util_ifloor(args->p + 0.5f) + sp_sview->base.u.tex.first_layer,
+ sp_sview->base.u.tex.first_layer,
+ sp_sview->base.u.tex.last_layer - 5) + args->face_id;
+ int x, y;
union tex_tile_address addr;
-
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
+ const float *out;
+ int c;
assert(width > 0);
assert(height > 0);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = args->level;
- samp->nearest_texcoord_s(s, width, x);
- samp->nearest_texcoord_t(t, height, y);
+ sp_samp->nearest_texcoord_s(args->s, width, args->offset[0], &x);
+ sp_samp->nearest_texcoord_t(args->t, height, args->offset[1], &y);
- 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];
- }
- }
+ out = get_texel_cube_array(sp_sview, sp_samp, addr, x, y, layerface);
+ for (c = 0; c < TGSI_NUM_CHANNELS; 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_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
- unsigned level0, j;
- int width, height, depth;
- int x[4], y[4], z[4];
+img_filter_3d_nearest(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const int width = u_minify(texture->width0, args->level);
+ const int height = u_minify(texture->height0, args->level);
+ const int depth = u_minify(texture->depth0, args->level);
+ int x, y, z;
union tex_tile_address addr;
-
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
- depth = u_minify(texture->depth0, level0);
+ const float *out;
+ int c;
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(args->s, width, args->offset[0], &x);
+ sp_samp->nearest_texcoord_t(args->t, height, args->offset[1], &y);
+ sp_samp->nearest_texcoord_p(args->p, depth, args->offset[2], &z);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = args->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_NUM_CHANNELS; 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_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
- unsigned level0, j;
- int width;
- int x0[4], x1[4];
- float xw[4]; /* weights */
+img_filter_1d_linear(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const int width = u_minify(texture->width0, args->level);
+ int x0, x1;
+ float xw; /* weights */
union tex_tile_address addr;
-
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
+ const float *tx0, *tx1;
+ int c;
assert(width > 0);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = args->level;
- samp->linear_texcoord_s(s, width, x0, x1, xw);
+ sp_samp->linear_texcoord_s(args->s, width, args->offset[0], &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_1d_array(sp_sview, sp_samp, addr, x0,
+ sp_sview->base.u.tex.first_layer);
+ tx1 = get_texel_1d_array(sp_sview, sp_samp, addr, x1,
+ sp_sview->base.u.tex.first_layer);
- /* 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_NUM_CHANNELS; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = lerp(xw, tx0[c], tx1[c]);
}
static void
-img_filter_1d_array_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_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
- unsigned level0, j;
- int width;
- int x0[4], x1[4], layer[4];
- float xw[4]; /* weights */
+img_filter_1d_array_linear(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const int width = u_minify(texture->width0, args->level);
+ const int layer = coord_to_layer(args->t, sp_sview->base.u.tex.first_layer,
+ sp_sview->base.u.tex.last_layer);
+ int x0, x1;
+ float xw; /* weights */
union tex_tile_address addr;
-
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
+ const float *tx0, *tx1;
+ int c;
assert(width > 0);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = args->level;
- samp->linear_texcoord_s(s, width, x0, x1, xw);
- wrap_array_layer(t, texture->array_size, layer);
+ sp_samp->linear_texcoord_s(args->s, width, args->offset[0], &x0, &x1, &xw);
- for (j = 0; j < QUAD_SIZE; j++) {
- const float *tx0 = get_texel_1d_array(samp, addr, x0[j], layer[j]);
- const float *tx1 = get_texel_1d_array(samp, addr, x1[j], layer[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(xw[j], tx0[c], tx1[c]);
- }
+ /* interpolate R, G, B, A */
+ for (c = 0; c < TGSI_NUM_CHANNELS; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = lerp(xw, tx0[c], tx1[c]);
+}
+
+/*
+ * Retrieve the gathered value, need to convert to the
+ * TGSI expected interface, and take component select
+ * and swizzling into account.
+ */
+static float
+get_gather_value(const struct sp_sampler_view *sp_sview,
+ int chan_in, int comp_sel,
+ const float *tx[4])
+{
+ int chan;
+ unsigned swizzle;
+
+ /*
+ * softpipe samples in a different order
+ * to TGSI expects, so we need to swizzle,
+ * the samples into the correct slots.
+ */
+ switch (chan_in) {
+ case 0:
+ chan = 2;
+ break;
+ case 1:
+ chan = 3;
+ break;
+ case 2:
+ chan = 1;
+ break;
+ case 3:
+ chan = 0;
+ break;
+ default:
+ assert(0);
+ return 0.0;
+ }
+
+ /* pick which component to use for the swizzle */
+ switch (comp_sel) {
+ case 0:
+ swizzle = sp_sview->base.swizzle_r;
+ break;
+ case 1:
+ swizzle = sp_sview->base.swizzle_g;
+ break;
+ case 2:
+ swizzle = sp_sview->base.swizzle_b;
+ break;
+ case 3:
+ swizzle = sp_sview->base.swizzle_a;
+ break;
+ default:
+ assert(0);
+ return 0.0;
+ }
+
+ /* get correct result using the channel and swizzle */
+ switch (swizzle) {
+ case PIPE_SWIZZLE_0:
+ return 0.0;
+ case PIPE_SWIZZLE_1:
+ return 1.0;
+ default:
+ return tx[chan][swizzle];
}
}
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_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
- unsigned level0, j;
- int width, height;
- int x0[4], y0[4], x1[4], y1[4];
- float xw[4], yw[4]; /* weights */
+img_filter_2d_linear(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const int width = u_minify(texture->width0, args->level);
+ const int height = u_minify(texture->height0, args->level);
+ int x0, y0, x1, y1;
+ float xw, yw; /* weights */
union tex_tile_address addr;
+ const float *tx[4];
+ int c;
+
+ assert(width > 0);
+ assert(height > 0);
+
+ addr.value = 0;
+ addr.bits.level = args->level;
+ addr.bits.z = sp_sview->base.u.tex.first_layer;
+
+ sp_samp->linear_texcoord_s(args->s, width, args->offset[0], &x0, &x1, &xw);
+ sp_samp->linear_texcoord_t(args->t, height, args->offset[1], &y0, &y1, &yw);
+
+ tx[0] = get_texel_2d(sp_sview, sp_samp, addr, x0, y0);
+ tx[1] = get_texel_2d(sp_sview, sp_samp, addr, x1, y0);
+ tx[2] = get_texel_2d(sp_sview, sp_samp, addr, x0, y1);
+ tx[3] = get_texel_2d(sp_sview, sp_samp, addr, x1, y1);
+
+ if (args->gather_only) {
+ for (c = 0; c < TGSI_NUM_CHANNELS; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = get_gather_value(sp_sview, c,
+ args->gather_comp,
+ tx);
+ } else {
+ /* interpolate R, G, B, A */
+ for (c = 0; c < TGSI_NUM_CHANNELS; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = lerp_2d(xw, yw,
+ tx[0][c], tx[1][c],
+ tx[2][c], tx[3][c]);
+ }
+}
+
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
+static void
+img_filter_2d_array_linear(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const int width = u_minify(texture->width0, args->level);
+ const int height = u_minify(texture->height0, args->level);
+ const int layer = coord_to_layer(args->p, sp_sview->base.u.tex.first_layer,
+ sp_sview->base.u.tex.last_layer);
+ int x0, y0, x1, y1;
+ float xw, yw; /* weights */
+ union tex_tile_address addr;
+ const float *tx[4];
+ int c;
assert(width > 0);
assert(height > 0);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = args->level;
- samp->linear_texcoord_s(s, width, x0, x1, xw);
- samp->linear_texcoord_t(t, height, y0, y1, yw);
+ sp_samp->linear_texcoord_s(args->s, width, args->offset[0], &x0, &x1, &xw);
+ sp_samp->linear_texcoord_t(args->t, height, args->offset[1], &y0, &y1, &yw);
- for (j = 0; j < QUAD_SIZE; j++) {
- const float *tx0 = get_texel_2d(samp, addr, x0[j], y0[j]);
- const float *tx1 = get_texel_2d(samp, addr, x1[j], y0[j]);
- const float *tx2 = get_texel_2d(samp, addr, x0[j], y1[j]);
- const float *tx3 = get_texel_2d(samp, addr, x1[j], y1[j]);
- int c;
+ tx[0] = get_texel_2d_array(sp_sview, sp_samp, addr, x0, y0, layer);
+ tx[1] = get_texel_2d_array(sp_sview, sp_samp, addr, x1, y0, layer);
+ tx[2] = get_texel_2d_array(sp_sview, sp_samp, addr, x0, y1, layer);
+ tx[3] = get_texel_2d_array(sp_sview, sp_samp, addr, x1, y1, layer);
+ if (args->gather_only) {
+ for (c = 0; c < TGSI_NUM_CHANNELS; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = get_gather_value(sp_sview, c,
+ args->gather_comp,
+ tx);
+ } else {
/* 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]);
- }
+ for (c = 0; c < TGSI_NUM_CHANNELS; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = lerp_2d(xw, yw,
+ tx[0][c], tx[1][c],
+ tx[2][c], tx[3][c]);
}
}
static void
-img_filter_2d_array_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_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
- unsigned level0, j;
- int width, height;
- int x0[4], y0[4], x1[4], y1[4], layer[4];
- float xw[4], yw[4]; /* weights */
+img_filter_cube_linear(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const int width = u_minify(texture->width0, args->level);
+ const int height = u_minify(texture->height0, args->level);
+ const int layer = sp_sview->base.u.tex.first_layer;
+ int x0, y0, x1, y1;
+ float xw, yw; /* weights */
union tex_tile_address addr;
-
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
+ const float *tx[4];
+ float corner0[TGSI_QUAD_SIZE], corner1[TGSI_QUAD_SIZE],
+ corner2[TGSI_QUAD_SIZE], corner3[TGSI_QUAD_SIZE];
+ int c;
assert(width > 0);
assert(height > 0);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = args->level;
- samp->linear_texcoord_s(s, width, x0, x1, xw);
- samp->linear_texcoord_t(t, height, y0, y1, yw);
- wrap_array_layer(p, texture->array_size, layer);
+ /*
+ * 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(args->s, width, args->offset[0], &x0, &x1, &xw);
+ wrap_linear_clamp_to_border(args->t, height, args->offset[1], &y0, &y1, &yw);
+ } else {
+ /* Would probably make sense to ignore mode and just do edge clamp */
+ sp_samp->linear_texcoord_s(args->s, width, args->offset[0], &x0, &x1, &xw);
+ sp_samp->linear_texcoord_t(args->t, height, args->offset[1], &y0, &y1, &yw);
+ }
- for (j = 0; j < QUAD_SIZE; j++) {
- const float *tx0 = get_texel_2d_array(samp, addr, x0[j], y0[j], layer[j]);
- const float *tx1 = get_texel_2d_array(samp, addr, x1[j], y0[j], layer[j]);
- const float *tx2 = get_texel_2d_array(samp, addr, x0[j], y1[j], layer[j]);
- const float *tx3 = get_texel_2d_array(samp, addr, x1[j], y1[j], layer[j]);
- int c;
+ if (sp_samp->base.seamless_cube_map) {
+ tx[0] = get_texel_cube_seamless(sp_sview, addr, x0, y0, corner0, layer, args->face_id);
+ tx[1] = get_texel_cube_seamless(sp_sview, addr, x1, y0, corner1, layer, args->face_id);
+ tx[2] = get_texel_cube_seamless(sp_sview, addr, x0, y1, corner2, layer, args->face_id);
+ tx[3] = get_texel_cube_seamless(sp_sview, addr, x1, y1, corner3, layer, args->face_id);
+ } else {
+ tx[0] = get_texel_cube_array(sp_sview, sp_samp, addr, x0, y0, layer + args->face_id);
+ tx[1] = get_texel_cube_array(sp_sview, sp_samp, addr, x1, y0, layer + args->face_id);
+ tx[2] = get_texel_cube_array(sp_sview, sp_samp, addr, x0, y1, layer + args->face_id);
+ tx[3] = get_texel_cube_array(sp_sview, sp_samp, addr, x1, y1, layer + args->face_id);
+ }
+ if (args->gather_only) {
+ for (c = 0; c < TGSI_NUM_CHANNELS; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = get_gather_value(sp_sview, c,
+ args->gather_comp,
+ tx);
+ } else {
/* 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]);
- }
+ for (c = 0; c < TGSI_NUM_CHANNELS; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = lerp_2d(xw, yw,
+ tx[0][c], tx[1][c],
+ tx[2][c], tx[3][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])
+img_filter_cube_array_linear(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
{
- const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
- const unsigned *faces = samp->faces; /* zero when not cube-mapping */
- unsigned level0, j;
- int width, height;
- int x0[4], y0[4], x1[4], y1[4];
- float xw[4], yw[4]; /* weights */
- union tex_tile_address addr;
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const int width = u_minify(texture->width0, args->level);
+ const int height = u_minify(texture->height0, args->level);
+
+ const int layer = CLAMP(6 * util_ifloor(args->p + 0.5f) + sp_sview->base.u.tex.first_layer,
+ sp_sview->base.u.tex.first_layer,
+ sp_sview->base.u.tex.last_layer - 5);
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
+ int x0, y0, x1, y1;
+ float xw, yw; /* weights */
+ union tex_tile_address addr;
+ const float *tx[4];
+ float corner0[TGSI_QUAD_SIZE], corner1[TGSI_QUAD_SIZE],
+ corner2[TGSI_QUAD_SIZE], corner3[TGSI_QUAD_SIZE];
+ int c;
assert(width > 0);
assert(height > 0);
addr.value = 0;
- addr.bits.level = samp->level;
+ addr.bits.level = args->level;
- samp->linear_texcoord_s(s, width, x0, x1, xw);
- samp->linear_texcoord_t(t, height, y0, y1, yw);
+ /*
+ * For seamless if LINEAR filtering is done within a miplevel,
+ * always apply wrap mode CLAMP_TO_BORDER.
+ */
+ if (sp_samp->base.seamless_cube_map) {
+ /* Note this is a bit overkill, actual clamping is not required */
+ wrap_linear_clamp_to_border(args->s, width, args->offset[0], &x0, &x1, &xw);
+ wrap_linear_clamp_to_border(args->t, height, args->offset[1], &y0, &y1, &yw);
+ } else {
+ /* Would probably make sense to ignore mode and just do edge clamp */
+ sp_samp->linear_texcoord_s(args->s, width, args->offset[0], &x0, &x1, &xw);
+ sp_samp->linear_texcoord_t(args->t, height, args->offset[1], &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;
+ if (sp_samp->base.seamless_cube_map) {
+ tx[0] = get_texel_cube_seamless(sp_sview, addr, x0, y0, corner0, layer, args->face_id);
+ tx[1] = get_texel_cube_seamless(sp_sview, addr, x1, y0, corner1, layer, args->face_id);
+ tx[2] = get_texel_cube_seamless(sp_sview, addr, x0, y1, corner2, layer, args->face_id);
+ tx[3] = get_texel_cube_seamless(sp_sview, addr, x1, y1, corner3, layer, args->face_id);
+ } else {
+ tx[0] = get_texel_cube_array(sp_sview, sp_samp, addr, x0, y0, layer + args->face_id);
+ tx[1] = get_texel_cube_array(sp_sview, sp_samp, addr, x1, y0, layer + args->face_id);
+ tx[2] = get_texel_cube_array(sp_sview, sp_samp, addr, x0, y1, layer + args->face_id);
+ tx[3] = get_texel_cube_array(sp_sview, sp_samp, addr, x1, y1, layer + args->face_id);
+ }
+ if (args->gather_only) {
+ for (c = 0; c < TGSI_NUM_CHANNELS; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = get_gather_value(sp_sview, c,
+ args->gather_comp,
+ tx);
+ } else {
/* 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]);
- }
+ for (c = 0; c < TGSI_NUM_CHANNELS; c++)
+ rgba[TGSI_NUM_CHANNELS*c] = lerp_2d(xw, yw,
+ tx[0][c], tx[1][c],
+ tx[2][c], tx[3][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_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->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_3d_linear(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const struct img_filter_args *args,
+ float *rgba)
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const int width = u_minify(texture->width0, args->level);
+ const int height = u_minify(texture->height0, args->level);
+ const int depth = u_minify(texture->depth0, args->level);
+ int x0, x1, y0, y1, z0, z1;
+ float xw, yw, zw; /* interpolation weights */
union tex_tile_address addr;
-
- level0 = samp->level;
- width = u_minify(texture->width0, level0);
- height = u_minify(texture->height0, level0);
- depth = u_minify(texture->depth0, level0);
+ const float *tx00, *tx01, *tx02, *tx03, *tx10, *tx11, *tx12, *tx13;
+ int c;
addr.value = 0;
- addr.bits.level = level0;
+ addr.bits.level = args->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);
+ sp_samp->linear_texcoord_s(args->s, width, args->offset[0], &x0, &x1, &xw);
+ sp_samp->linear_texcoord_t(args->t, height, args->offset[1], &y0, &y1, &yw);
+ sp_samp->linear_texcoord_p(args->p, depth, args->offset[2], &z0, &z1, &zw);
- for (j = 0; j < QUAD_SIZE; j++) {
- int c;
-
- const float *tx00 = get_texel_3d(samp, addr, x0[j], y0[j], z0[j]);
- const float *tx01 = get_texel_3d(samp, addr, x1[j], y0[j], z0[j]);
- const float *tx02 = get_texel_3d(samp, addr, x0[j], y1[j], z0[j]);
- const float *tx03 = get_texel_3d(samp, addr, x1[j], y1[j], z0[j]);
+ tx00 = get_texel_3d(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);
- const float *tx10 = get_texel_3d(samp, addr, x0[j], y0[j], z1[j]);
- const float *tx11 = get_texel_3d(samp, addr, x1[j], y0[j], z1[j]);
- const float *tx12 = get_texel_3d(samp, addr, x0[j], y1[j], z1[j]);
- const float *tx13 = get_texel_3d(samp, addr, x1[j], y1[j], z1[j]);
+ tx10 = get_texel_3d(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 < 4; c++) {
- rgba[c][j] = lerp_3d(xw[j], yw[j], zw[j],
- tx00[c], tx01[c],
- tx02[c], tx03[c],
- tx10[c], tx11[c],
- tx12[c], tx13[c]);
- }
- }
+ for (c = 0; c < TGSI_NUM_CHANNELS; 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]);
}
-/* Calculate level of detail for every fragment.
+/* 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
+static inline void
compute_lod(const struct pipe_sampler_state *sampler,
+ enum tgsi_sampler_control control,
const float biased_lambda,
- const float lodbias[QUAD_SIZE],
- float lod[QUAD_SIZE])
+ const float lod_in[TGSI_QUAD_SIZE],
+ float lod[TGSI_QUAD_SIZE])
{
+ const float min_lod = sampler->min_lod;
+ const float max_lod = sampler->max_lod;
uint i;
- for (i = 0; i < QUAD_SIZE; i++) {
- lod[i] = biased_lambda + lodbias[i];
- lod[i] = CLAMP(lod[i], sampler->min_lod, sampler->max_lod);
+ switch (control) {
+ case TGSI_SAMPLER_LOD_NONE:
+ case TGSI_SAMPLER_LOD_ZERO:
+ lod[0] = lod[1] = lod[2] = lod[3] = CLAMP(biased_lambda, min_lod, max_lod);
+ break;
+ case TGSI_SAMPLER_DERIVS_EXPLICIT:
+ for (i = 0; i < TGSI_QUAD_SIZE; i++)
+ lod[i] = lod_in[i];
+ 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;
}
}
-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_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
- int level0;
+/* Calculate level of detail for every fragment. The computed value is not
+ * clamped to lod_min and lod_max.
+ * \param lod_in per-fragment lod_bias or explicit_lod.
+ * \param lod results per-fragment lod.
+ */
+static inline void
+compute_lambda_lod_unclamped(const struct sp_sampler_view *sp_sview,
+ const 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 derivs[3][2][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;
+ const float lod_bias = sampler->lod_bias;
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);
+ uint i;
- memcpy(lod, c0, sizeof(lod));
+ switch (control) {
+ case TGSI_SAMPLER_LOD_NONE:
+ lambda = sp_sview->compute_lambda(sp_sview, s, t, p) + lod_bias;
+ lod[0] = lod[1] = lod[2] = lod[3] = lambda;
+ break;
+ case TGSI_SAMPLER_DERIVS_EXPLICIT:
+ for (i = 0; i < TGSI_QUAD_SIZE; i++)
+ lod[i] = sp_sview->compute_lambda_from_grad(sp_sview, derivs, i);
+ 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];
+ }
+ break;
+ case TGSI_SAMPLER_LOD_EXPLICIT:
+ for (i = 0; i < TGSI_QUAD_SIZE; i++) {
+ lod[i] = lod_in[i] + lod_bias;
+ }
+ break;
+ case TGSI_SAMPLER_LOD_ZERO:
+ case TGSI_SAMPLER_GATHER:
+ lod[0] = lod[1] = lod[2] = lod[3] = lod_bias;
+ break;
+ default:
+ assert(0);
+ lod[0] = lod[1] = lod[2] = lod[3] = 0.0f;
}
+}
- /* XXX: Take into account all lod values.
- */
- lambda = lod[0];
- level0 = samp->view->u.tex.first_level + (int)lambda;
+/* 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(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ float derivs[3][2][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;
+ const float min_lod = sampler->min_lod;
+ const float max_lod = sampler->max_lod;
+ int i;
- if (lambda < 0.0) {
- samp->level = samp->view->u.tex.first_level;
- samp->mag_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba);
+ compute_lambda_lod_unclamped(sp_sview, sp_samp,
+ s, t, p, derivs, lod_in, control, lod);
+ for (i = 0; i < TGSI_QUAD_SIZE; i++) {
+ lod[i] = CLAMP(lod[i], min_lod, max_lod);
}
- 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);
+}
+
+static inline unsigned
+get_gather_component(const float lod_in[TGSI_QUAD_SIZE])
+{
+ /* gather component is stored in lod_in slot as unsigned */
+ return (*(unsigned int *)lod_in) & 0x3;
+}
+
+/**
+ * Clamps given lod to both lod limits and mip level limits. Clamping to the
+ * latter limits is done so that lod is relative to the first (base) level.
+ */
+static void
+clamp_lod(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const float lod[TGSI_QUAD_SIZE],
+ float clamped[TGSI_QUAD_SIZE])
+{
+ const float min_lod = sp_samp->base.min_lod;
+ const float max_lod = sp_samp->base.max_lod;
+ const float min_level = sp_sview->base.u.tex.first_level;
+ const float max_level = sp_sview->base.u.tex.last_level;
+ int i;
+
+ for (i = 0; i < TGSI_QUAD_SIZE; i++) {
+ float cl = lod[i];
+
+ cl = CLAMP(cl, min_lod, max_lod);
+ cl = CLAMP(cl, 0, max_level - min_level);
+ clamped[i] = cl;
}
- else {
- float levelBlend = frac(lambda);
- float rgba0[4][4];
- float rgba1[4][4];
- int c,j;
+}
+
+/**
+ * Get mip level relative to base level for linear mip filter
+ */
+static void
+mip_rel_level_linear(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const float lod[TGSI_QUAD_SIZE],
+ float level[TGSI_QUAD_SIZE])
+{
+ clamp_lod(sp_sview, sp_samp, lod, level);
+}
+
+static void
+mip_filter_linear(const struct sp_sampler_view *sp_sview,
+ const 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],
+ int gather_comp,
+ const float lod[TGSI_QUAD_SIZE],
+ const struct filter_args *filt_args,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ const struct pipe_sampler_view *psview = &sp_sview->base;
+ int j;
+ struct img_filter_args args;
+
+ args.offset = filt_args->offset;
+ args.gather_only = filt_args->control == TGSI_SAMPLER_GATHER;
+ args.gather_comp = gather_comp;
+
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ const int level0 = psview->u.tex.first_level + (int)lod[j];
+
+ args.s = s[j];
+ args.t = t[j];
+ args.p = p[j];
+ args.face_id = filt_args->faces[j];
- samp->level = level0;
- samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba0);
+ if (lod[j] <= 0.0 && !args.gather_only) {
+ args.level = psview->u.tex.first_level;
+ mag_filter(sp_sview, sp_samp, &args, &rgba[0][j]);
+ }
+ else if (level0 >= (int) psview->u.tex.last_level) {
+ args.level = psview->u.tex.last_level;
+ min_filter(sp_sview, sp_samp, &args, &rgba[0][j]);
+ }
+ else {
+ float levelBlend = frac(lod[j]);
+ float rgbax[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE];
+ int c;
- samp->level = level0+1;
- samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba1);
+ args.level = level0;
+ min_filter(sp_sview, sp_samp, &args, &rgbax[0][0]);
+ args.level = level0+1;
+ min_filter(sp_sview, sp_samp, &args, &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(__FUNCTION__, rgba);
+ print_sample_4(__FUNCTION__, rgba);
}
}
/**
- * Compute nearest mipmap level from texcoords.
- * Then sample the texture level for four elements of a quad.
- * \param c0 the LOD bias factors, or absolute LODs (depending on control)
+ * Get mip level relative to base level for nearest mip filter
*/
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],
- enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+mip_rel_level_nearest(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const float lod[TGSI_QUAD_SIZE],
+ float level[TGSI_QUAD_SIZE])
{
- struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
- 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);
-
- memcpy(lod, c0, sizeof(lod));
- }
+ int j;
- /* XXX: Take into account all lod values.
- */
- lambda = lod[0];
+ clamp_lod(sp_sview, sp_samp, lod, level);
+ for (j = 0; j < TGSI_QUAD_SIZE; j++)
+ /* TODO: It should rather be:
+ * level[j] = ceil(level[j] + 0.5F) - 1.0F;
+ */
+ level[j] = (int)(level[j] + 0.5F);
+}
- if (lambda < 0.0) {
- samp->level = samp->view->u.tex.first_level;
- samp->mag_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba);
- }
- else {
- samp->level = samp->view->u.tex.first_level + (int)(lambda + 0.5F) ;
- samp->level = MIN2(samp->level, (int)texture->last_level);
- samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba);
+/**
+ * Compute nearest mipmap level from texcoords.
+ * Then sample the texture level for four elements of a quad.
+ * \param c0 the LOD bias factors, or absolute LODs (depending on control)
+ */
+static void
+mip_filter_nearest(const struct sp_sampler_view *sp_sview,
+ const 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],
+ int gather_component,
+ const float lod[TGSI_QUAD_SIZE],
+ const struct filter_args *filt_args,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ const struct pipe_sampler_view *psview = &sp_sview->base;
+ int j;
+ struct img_filter_args args;
+
+ args.offset = filt_args->offset;
+ args.gather_only = filt_args->control == TGSI_SAMPLER_GATHER;
+ args.gather_comp = gather_component;
+
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ args.s = s[j];
+ args.t = t[j];
+ args.p = p[j];
+ args.face_id = filt_args->faces[j];
+
+ if (lod[j] <= 0.0f && !args.gather_only) {
+ args.level = psview->u.tex.first_level;
+ mag_filter(sp_sview, sp_samp, &args, &rgba[0][j]);
+ } else {
+ const int level = psview->u.tex.first_level + (int)(lod[j] + 0.5F);
+ args.level = MIN2(level, (int)psview->u.tex.last_level);
+ min_filter(sp_sview, sp_samp, &args, &rgba[0][j]);
+ }
}
if (DEBUG_TEX) {
- print_sample(__FUNCTION__, rgba);
+ print_sample_4(__FUNCTION__, rgba);
}
}
+/**
+ * Get mip level relative to base level for none mip filter
+ */
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])
+mip_rel_level_none(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const float lod[TGSI_QUAD_SIZE],
+ float level[TGSI_QUAD_SIZE])
{
- struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
- float lambda;
- float lod[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);
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ level[j] = 0;
+ }
+}
- memcpy(lod, c0, sizeof(lod));
+static void
+mip_filter_none(const struct sp_sampler_view *sp_sview,
+ const 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],
+ int gather_component,
+ const float lod[TGSI_QUAD_SIZE],
+ const struct filter_args *filt_args,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ int j;
+ struct img_filter_args args;
+
+ args.level = sp_sview->base.u.tex.first_level;
+ args.offset = filt_args->offset;
+ args.gather_only = filt_args->control == TGSI_SAMPLER_GATHER;
+ args.gather_comp = gather_component;
+
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ args.s = s[j];
+ args.t = t[j];
+ args.p = p[j];
+ args.face_id = filt_args->faces[j];
+ if (lod[j] <= 0.0f && !args.gather_only) {
+ mag_filter(sp_sview, sp_samp, &args, &rgba[0][j]);
+ }
+ else {
+ min_filter(sp_sview, sp_samp, &args, &rgba[0][j]);
+ }
}
+}
- /* XXX: Take into account all lod values.
- */
- lambda = lod[0];
- samp->level = samp->view->u.tex.first_level;
- if (lambda < 0.0) {
- samp->mag_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba);
- }
- else {
- samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba);
+/**
+ * Get mip level relative to base level for none mip filter
+ */
+static void
+mip_rel_level_none_no_filter_select(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const float lod[TGSI_QUAD_SIZE],
+ float level[TGSI_QUAD_SIZE])
+{
+ mip_rel_level_none(sp_sview, sp_samp, lod, level);
+}
+
+static void
+mip_filter_none_no_filter_select(const struct sp_sampler_view *sp_sview,
+ const 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],
+ int gather_comp,
+ const float lod_in[TGSI_QUAD_SIZE],
+ const struct filter_args *filt_args,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ int j;
+ struct img_filter_args args;
+ args.level = sp_sview->base.u.tex.first_level;
+ args.offset = filt_args->offset;
+ args.gather_only = filt_args->control == TGSI_SAMPLER_GATHER;
+ args.gather_comp = gather_comp;
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ args.s = s[j];
+ args.t = t[j];
+ args.p = p[j];
+ args.face_id = filt_args->faces[j];
+ mag_filter(sp_sview, sp_samp, &args, &rgba[0][j]);
}
}
/* For anisotropic filtering */
#define WEIGHT_LUT_SIZE 1024
-static float *weightLut = NULL;
+static const float *weightLut = NULL;
/**
* Creates the look-up table used to speed-up EWA sampling
{
unsigned i;
if (!weightLut) {
- weightLut = (float *) MALLOC(WEIGHT_LUT_SIZE * sizeof(float));
+ float *lut = (float *) MALLOC(WEIGHT_LUT_SIZE * sizeof(float));
for (i = 0; i < WEIGHT_LUT_SIZE; ++i) {
- float alpha = 2;
- float r2 = (float) i / (float) (WEIGHT_LUT_SIZE - 1);
- float weight = (float) exp(-alpha * r2);
- weightLut[i] = weight;
+ const float alpha = 2;
+ const float r2 = (float) i / (float) (WEIGHT_LUT_SIZE - 1);
+ const float weight = (float) expf(-alpha * r2);
+ lut[i] = weight;
}
+ weightLut = lut;
}
}
/**
* Elliptical weighted average (EWA) filter for producing high quality
* anisotropic filtered results.
- * Based on the Higher Quality Elliptical Weighted Avarage Filter
+ * Based on the Higher Quality Elliptical Weighted Average Filter
* published by Paul S. Heckbert in his Master's Thesis
* "Fundamentals of Texture Mapping and Image Warping" (1989)
*/
static void
-img_filter_2d_ewa(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- const float c0[QUAD_SIZE],
- enum tgsi_sampler_control control,
+img_filter_2d_ewa(const struct sp_sampler_view *sp_sview,
+ const 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 uint faces[TGSI_QUAD_SIZE],
+ const int8_t *offset,
+ unsigned level,
const float dudx, const float dvdx,
const float dudy, const float dvdy,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
{
- const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
+ const struct pipe_resource *texture = sp_sview->base.texture;
- unsigned level0 = samp->level > 0 ? samp->level : 0;
- float scaling = 1.0 / (1 << level0);
- int width = u_minify(texture->width0, level0);
- int height = u_minify(texture->height0, level0);
-
- float ux = dudx * scaling;
- float vx = dvdx * scaling;
- float uy = dudy * scaling;
- float vy = dvdy * scaling;
+ // ??? Won't the image filters blow up if level is negative?
+ const unsigned level0 = level > 0 ? level : 0;
+ const float scaling = 1.0f / (1 << level0);
+ const int width = u_minify(texture->width0, level0);
+ const int height = u_minify(texture->height0, level0);
+ struct img_filter_args args;
+ const float ux = dudx * scaling;
+ const float vx = dvdx * scaling;
+ const float uy = dudy * scaling;
+ const float vy = dvdy * scaling;
/* compute ellipse coefficients to bound the region:
* A*x*x + B*x*y + C*y*y = F.
float A = vx*vx+vy*vy+1;
float B = -2*(ux*vx+uy*vy);
float C = ux*ux+uy*uy+1;
- float F = A*C-B*B/4.0;
+ float F = A*C-B*B/4.0f;
/* check if it is an ellipse */
- /* ASSERT(F > 0.0); */
+ /* assert(F > 0.0); */
/* Compute the ellipse's (u,v) bounding box in texture space */
- float d = -B*B+4.0*C*A;
- float box_u = 2.0 / d * sqrt(d*C*F); /* box_u -> half of bbox with */
- float box_v = 2.0 / d * sqrt(A*d*F); /* box_v -> half of bbox height */
-
- float rgba_temp[NUM_CHANNELS][QUAD_SIZE];
- float s_buffer[QUAD_SIZE];
- float t_buffer[QUAD_SIZE];
- float weight_buffer[QUAD_SIZE];
- unsigned buffer_next;
+ const float d = -B*B+4.0f*C*A;
+ const float box_u = 2.0f / d * sqrtf(d*C*F); /* box_u -> half of bbox with */
+ const 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];
int j;
- float den;// = 0.0F;
- float ddq;
- float U;// = u0 - tex_u;
- int v;
+
+ /* 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.
+ */
+ const float ddq = 2 * A;
/* 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;
+ const 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 < QUAD_SIZE; j++) {
+ args.level = level;
+ args.offset = offset;
+
+ 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;
+ const float tex_u = -0.5F + s[j] * texture->width0 * scaling;
+ const 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);
+ const int u0 = (int) floorf(tex_u - box_u);
+ const int u1 = (int) ceilf(tex_u + box_u);
+ const int v0 = (int) floorf(tex_v - box_v);
+ const int v1 = (int) ceilf(tex_v + box_v);
+ const float U = u0 - tex_u;
float num[4] = {0.0F, 0.0F, 0.0F, 0.0F};
- buffer_next = 0;
- den = 0;
- U = u0 - tex_u;
+ unsigned buffer_next = 0;
+ float den = 0;
+ int v;
+ args.face_id = faces[j];
+
for (v = v0; v <= v1; ++v) {
- float V = v - tex_v;
+ const 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 */
+ /* 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];
+ const 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 == QUAD_SIZE) {
+ 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.
*/
- samp->min_img_filter(tgsi_sampler, s_buffer, t_buffer, p, NULL,
- tgsi_sampler_lod_bias, rgba_temp);
for (jj = 0; jj < buffer_next; jj++) {
+ args.s = s_buffer[jj];
+ args.t = t_buffer[jj];
+ args.p = p[jj];
+ min_filter(sp_sview, sp_samp, &args, &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];
}
}
- /* if the tex coord buffer contains unread values, we will read them now.
- * Note that in most cases we have to read more pixel values than required,
- * however, as the img_filter_2d_nearest function(s) does not have a count
- * parameter, we need to read the whole quad and ignore the unused values
+ /* if the tex coord buffer contains unread values, we will read
+ * them now.
*/
if (buffer_next > 0) {
unsigned jj;
* img_filter_2d_nearest or one of the
* accelerated img_filter_2d_nearest_XXX functions.
*/
- samp->min_img_filter(tgsi_sampler, s_buffer, t_buffer, p, NULL,
- tgsi_sampler_lod_bias, rgba_temp);
for (jj = 0; jj < buffer_next; jj++) {
+ args.s = s_buffer[jj];
+ args.t = t_buffer[jj];
+ args.p = p[jj];
+ min_filter(sp_sview, sp_samp, &args, &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];
}
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.
+ /* 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[2]=0;
rgba[3]=0;*/
/* not enough pixels in resampling, resort to direct interpolation */
- samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba_temp);
+ args.s = s[j];
+ args.t = t[j];
+ args.p = p[j];
+ min_filter(sp_sview, sp_samp, &args, &rgba_temp[0][j]);
den = 1;
num[0] = rgba_temp[0][j];
num[1] = rgba_temp[1][j];
/**
- * Sample 2D texture using an anisotropic filter.
+ * Get mip level relative to base level for linear mip filter
*/
static void
-mip_filter_linear_aniso(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])
+mip_rel_level_linear_aniso(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const float lod[TGSI_QUAD_SIZE],
+ float level[TGSI_QUAD_SIZE])
{
- struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
+ mip_rel_level_linear(sp_sview, sp_samp, lod, level);
+}
+
+/**
+ * Sample 2D texture using an anisotropic filter.
+ */
+static void
+mip_filter_linear_aniso(const struct sp_sampler_view *sp_sview,
+ const 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],
+ UNUSED int gather_comp,
+ const float lod_in[TGSI_QUAD_SIZE],
+ const struct filter_args *filt_args,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ const struct pipe_resource *texture = sp_sview->base.texture;
+ const struct pipe_sampler_view *psview = &sp_sview->base;
int level0;
float lambda;
- float lod[QUAD_SIZE];
-
- float s_to_u = u_minify(texture->width0, samp->view->u.tex.first_level);
- float t_to_v = u_minify(texture->height0, samp->view->u.tex.first_level);
- float dudx = (s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]) * s_to_u;
- float dudy = (s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]) * s_to_u;
- float dvdx = (t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]) * t_to_v;
- float dvdy = (t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]) * t_to_v;
-
- if (control == tgsi_sampler_lod_bias) {
+ float lod[TGSI_QUAD_SIZE];
+
+ const float s_to_u = u_minify(texture->width0, psview->u.tex.first_level);
+ const float t_to_v = u_minify(texture->height0, psview->u.tex.first_level);
+ const float dudx = (s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]) * s_to_u;
+ const float dudy = (s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]) * s_to_u;
+ const float dvdx = (t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]) * t_to_v;
+ const float dvdy = (t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]) * t_to_v;
+ struct img_filter_args args;
+
+ args.offset = filt_args->offset;
+
+ if (filt_args->control == TGSI_SAMPLER_LOD_BIAS ||
+ filt_args->control == TGSI_SAMPLER_LOD_NONE ||
+ /* XXX FIXME */
+ filt_args->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;
+ const float Px2 = dudx * dudx + dvdx * dvdx;
+ const float Py2 = dudy * dudy + dvdy * dvdy;
float Pmax2;
float Pmin2;
float e;
- const float maxEccentricity = samp->sampler->max_anisotropy * samp->sampler->max_anisotropy;
+ const float maxEccentricity = sp_samp->base.max_anisotropy * sp_samp->base.max_anisotropy;
if (Px2 < Py2) {
Pmax2 = Py2;
/* note: we need to have Pmin=sqrt(Pmin2) here, but we can avoid
* this since 0.5*log(x) = log(sqrt(x))
*/
- lambda = 0.5F * util_fast_log2(Pmin2) + samp->sampler->lod_bias;
- compute_lod(samp->sampler, lambda, c0, lod);
+ lambda = 0.5F * util_fast_log2(Pmin2) + sp_samp->base.lod_bias;
+ compute_lod(&sp_samp->base, filt_args->control, lambda, lod_in, lod);
}
else {
- assert(control == tgsi_sampler_lod_explicit);
-
- memcpy(lod, c0, sizeof(lod));
+ assert(filt_args->control == TGSI_SAMPLER_LOD_EXPLICIT ||
+ filt_args->control == TGSI_SAMPLER_LOD_ZERO);
+ compute_lod(&sp_samp->base, filt_args->control, sp_samp->base.lod_bias, lod_in, lod);
}
/* XXX: Take into account all lod values.
*/
lambda = lod[0];
- level0 = samp->view->u.tex.first_level + (int)lambda;
+ level0 = psview->u.tex.first_level + (int)lambda;
/* If the ellipse covers the whole image, we can
* simply return the average of the whole image.
*/
- if (level0 >= (int) texture->last_level) {
- samp->level = texture->last_level;
- samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba);
+ if (level0 >= (int) psview->u.tex.last_level) {
+ int j;
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ args.s = s[j];
+ args.t = t[j];
+ args.p = p[j];
+ args.level = psview->u.tex.last_level;
+ args.face_id = filt_args->faces[j];
+ /*
+ * XXX: we overwrote any linear filter with nearest, so this
+ * isn't right (albeit if last level is 1x1 and no border it
+ * will work just the same).
+ */
+ min_filter(sp_sview, sp_samp, &args, &rgba[0][j]);
+ }
}
else {
/* don't bother interpolating between multiple LODs; it doesn't
* seem to be worth the extra running time.
*/
- samp->level = level0;
- img_filter_2d_ewa(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias,
- dudx, dvdx, dudy, dvdy, rgba);
+ img_filter_2d_ewa(sp_sview, sp_samp, min_filter, mag_filter,
+ s, t, p, filt_args->faces, filt_args->offset,
+ level0, dudx, dvdx, dudy, dvdy, rgba);
}
if (DEBUG_TEX) {
- print_sample(__FUNCTION__, rgba);
+ print_sample_4(__FUNCTION__, rgba);
}
}
-
+/**
+ * Get mip level relative to base level for linear mip filter
+ */
+static void
+mip_rel_level_linear_2d_linear_repeat_POT(
+ const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const float lod[TGSI_QUAD_SIZE],
+ float level[TGSI_QUAD_SIZE])
+{
+ mip_rel_level_linear(sp_sview, sp_samp, lod, level);
+}
/**
* Specialized version of mip_filter_linear with hard-wired calls to
*/
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],
- enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
-{
- struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_resource *texture = samp->view->texture;
- int level0;
- float lambda;
- float lod[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);
-
- memcpy(lod, c0, sizeof(lod));
- }
-
- /* XXX: Take into account all lod values.
- */
- lambda = lod[0];
- level0 = samp->view->u.tex.first_level + (int)lambda;
-
- /* Catches both negative and large values of level0:
- */
- if ((unsigned)level0 >= texture->last_level) {
- if (level0 < 0)
- samp->level = samp->view->u.tex.first_level;
- else
- samp->level = texture->last_level;
+ const struct sp_sampler_view *sp_sview,
+ const 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],
+ int gather_comp,
+ const float lod[TGSI_QUAD_SIZE],
+ const struct filter_args *filt_args,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ const struct pipe_sampler_view *psview = &sp_sview->base;
+ int j;
- img_filter_2d_linear_repeat_POT(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba);
- }
- else {
- float levelBlend = frac(lambda);
- float rgba0[4][4];
- float rgba1[4][4];
- int c,j;
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ const int level0 = psview->u.tex.first_level + (int)lod[j];
+ struct img_filter_args args;
+ /* Catches both negative and large values of level0:
+ */
+ args.s = s[j];
+ args.t = t[j];
+ args.p = p[j];
+ args.face_id = filt_args->faces[j];
+ args.offset = filt_args->offset;
+ args.gather_only = filt_args->control == TGSI_SAMPLER_GATHER;
+ args.gather_comp = gather_comp;
+ if ((unsigned)level0 >= psview->u.tex.last_level) {
+ if (level0 < 0)
+ args.level = psview->u.tex.first_level;
+ else
+ args.level = psview->u.tex.last_level;
+ img_filter_2d_linear_repeat_POT(sp_sview, sp_samp, &args,
+ &rgba[0][j]);
- samp->level = level0;
- img_filter_2d_linear_repeat_POT(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba0);
+ }
+ else {
+ const 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);
+ args.level = level0;
+ img_filter_2d_linear_repeat_POT(sp_sview, sp_samp, &args, &rgbax[0][0]);
+ args.level = level0+1;
+ img_filter_2d_linear_repeat_POT(sp_sview, sp_samp, &args, &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(__FUNCTION__, rgba);
+ print_sample_4(__FUNCTION__, rgba);
}
}
+static const struct sp_filter_funcs funcs_linear = {
+ mip_rel_level_linear,
+ mip_filter_linear
+};
+
+static const struct sp_filter_funcs funcs_nearest = {
+ mip_rel_level_nearest,
+ mip_filter_nearest
+};
+
+static const struct sp_filter_funcs funcs_none = {
+ mip_rel_level_none,
+ mip_filter_none
+};
+
+static const struct sp_filter_funcs funcs_none_no_filter_select = {
+ mip_rel_level_none_no_filter_select,
+ mip_filter_none_no_filter_select
+};
+static const struct sp_filter_funcs funcs_linear_aniso = {
+ mip_rel_level_linear_aniso,
+ mip_filter_linear_aniso
+};
+
+static const struct sp_filter_funcs funcs_linear_2d_linear_repeat_POT = {
+ mip_rel_level_linear_2d_linear_repeat_POT,
+ mip_filter_linear_2d_linear_repeat_POT
+};
/**
* 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(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const float c0[TGSI_QUAD_SIZE],
enum tgsi_sampler_control control,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
-{
- struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_sampler_state *sampler = samp->sampler;
- int j, k0, k1, k2, k3;
- float val;
- float pc0, pc1, pc2, pc3;
-
- samp->mip_filter(tgsi_sampler, s, t, p, c0, control, rgba);
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
+{
+ const struct pipe_sampler_state *sampler = &sp_samp->base;
+ int j, v;
+ int k[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE];
+ float pc[4];
+ const struct util_format_description *format_desc =
+ util_format_description(sp_sview->base.format);
+ /* not entirely sure we couldn't end up with non-valid swizzle here */
+ const unsigned chan_type =
+ format_desc->swizzle[0] <= PIPE_SWIZZLE_W ?
+ format_desc->channel[format_desc->swizzle[0]].type :
+ UTIL_FORMAT_TYPE_FLOAT;
+ const bool is_gather = (control == TGSI_SAMPLER_GATHER);
/**
* Compare texcoord 'p' (aka R) against texture value 'rgba[0]'
* RGBA channels. We look at the red channel here.
*/
- if (samp->view->texture->target == PIPE_TEXTURE_2D_ARRAY ||
- samp->view->texture->target == PIPE_TEXTURE_CUBE) {
- pc0 = CLAMP(c0[0], 0.0F, 1.0F);
- pc1 = CLAMP(c0[1], 0.0F, 1.0F);
- pc2 = CLAMP(c0[2], 0.0F, 1.0F);
- pc3 = CLAMP(c0[3], 0.0F, 1.0F);
- } else {
- pc0 = CLAMP(p[0], 0.0F, 1.0F);
- pc1 = CLAMP(p[1], 0.0F, 1.0F);
- pc2 = CLAMP(p[2], 0.0F, 1.0F);
- pc3 = CLAMP(p[3], 0.0F, 1.0F);
- }
- /* compare four texcoords vs. four texture samples */
- switch (sampler->compare_func) {
- case PIPE_FUNC_LESS:
- k0 = pc0 < rgba[0][0];
- k1 = pc1 < rgba[0][1];
- k2 = pc2 < rgba[0][2];
- k3 = pc3 < rgba[0][3];
- break;
- case PIPE_FUNC_LEQUAL:
- k0 = pc0 <= rgba[0][0];
- k1 = pc1 <= rgba[0][1];
- k2 = pc2 <= rgba[0][2];
- k3 = pc3 <= rgba[0][3];
- break;
- case PIPE_FUNC_GREATER:
- k0 = pc0 > rgba[0][0];
- k1 = pc1 > rgba[0][1];
- k2 = pc2 > rgba[0][2];
- k3 = pc3 > rgba[0][3];
- break;
- case PIPE_FUNC_GEQUAL:
- k0 = pc0 >= rgba[0][0];
- k1 = pc1 >= rgba[0][1];
- k2 = pc2 >= rgba[0][2];
- k3 = pc3 >= rgba[0][3];
- break;
- case PIPE_FUNC_EQUAL:
- k0 = pc0 == rgba[0][0];
- k1 = pc1 == rgba[0][1];
- k2 = pc2 == rgba[0][2];
- k3 = pc3 == rgba[0][3];
- break;
- case PIPE_FUNC_NOTEQUAL:
- k0 = pc0 != rgba[0][0];
- k1 = pc1 != rgba[0][1];
- k2 = pc2 != rgba[0][2];
- k3 = pc3 != rgba[0][3];
- break;
- case PIPE_FUNC_ALWAYS:
- k0 = k1 = k2 = k3 = 1;
- break;
- case PIPE_FUNC_NEVER:
- k0 = k1 = k2 = k3 = 0;
- break;
- default:
- k0 = k1 = k2 = k3 = 0;
- assert(0);
- break;
- }
- if (sampler->mag_img_filter == PIPE_TEX_FILTER_LINEAR) {
- /* convert four pass/fail values to an intensity in [0,1] */
- val = 0.25F * (k0 + k1 + k2 + k3);
- /* XXX returning result for default GL_DEPTH_TEXTURE_MODE = GL_LUMINANCE */
- for (j = 0; j < 4; j++) {
- rgba[0][j] = rgba[1][j] = rgba[2][j] = val;
- rgba[3][j] = 1.0F;
- }
+ 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(c0[0], 0.0F, 1.0F);
+ pc[1] = CLAMP(c0[1], 0.0F, 1.0F);
+ pc[2] = CLAMP(c0[2], 0.0F, 1.0F);
+ pc[3] = CLAMP(c0[3], 0.0F, 1.0F);
} else {
- for (j = 0; j < 4; j++) {
- rgba[0][j] = k0;
- rgba[1][j] = k1;
- rgba[2][j] = k2;
- rgba[3][j] = 1.0F;
+ pc[0] = c0[0];
+ pc[1] = c0[1];
+ pc[2] = c0[2];
+ pc[3] = c0[3];
+ }
+
+ for (v = 0; v < (is_gather ? TGSI_NUM_CHANNELS : 1); v++) {
+ /* compare four texcoords vs. four texture samples */
+ switch (sampler->compare_func) {
+ case PIPE_FUNC_LESS:
+ k[v][0] = pc[0] < rgba[v][0];
+ k[v][1] = pc[1] < rgba[v][1];
+ k[v][2] = pc[2] < rgba[v][2];
+ k[v][3] = pc[3] < rgba[v][3];
+ break;
+ case PIPE_FUNC_LEQUAL:
+ k[v][0] = pc[0] <= rgba[v][0];
+ k[v][1] = pc[1] <= rgba[v][1];
+ k[v][2] = pc[2] <= rgba[v][2];
+ k[v][3] = pc[3] <= rgba[v][3];
+ break;
+ case PIPE_FUNC_GREATER:
+ k[v][0] = pc[0] > rgba[v][0];
+ k[v][1] = pc[1] > rgba[v][1];
+ k[v][2] = pc[2] > rgba[v][2];
+ k[v][3] = pc[3] > rgba[v][3];
+ break;
+ case PIPE_FUNC_GEQUAL:
+ k[v][0] = pc[0] >= rgba[v][0];
+ k[v][1] = pc[1] >= rgba[v][1];
+ k[v][2] = pc[2] >= rgba[v][2];
+ k[v][3] = pc[3] >= rgba[v][3];
+ break;
+ case PIPE_FUNC_EQUAL:
+ k[v][0] = pc[0] == rgba[v][0];
+ k[v][1] = pc[1] == rgba[v][1];
+ k[v][2] = pc[2] == rgba[v][2];
+ k[v][3] = pc[3] == rgba[v][3];
+ break;
+ case PIPE_FUNC_NOTEQUAL:
+ k[v][0] = pc[0] != rgba[v][0];
+ k[v][1] = pc[1] != rgba[v][1];
+ k[v][2] = pc[2] != rgba[v][2];
+ k[v][3] = pc[3] != rgba[v][3];
+ break;
+ case PIPE_FUNC_ALWAYS:
+ k[v][0] = k[v][1] = k[v][2] = k[v][3] = 1;
+ break;
+ case PIPE_FUNC_NEVER:
+ k[v][0] = k[v][1] = k[v][2] = k[v][3] = 0;
+ break;
+ default:
+ k[v][0] = k[v][1] = k[v][2] = k[v][3] = 0;
+ assert(0);
+ break;
}
}
-}
-
-
-/**
- * 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_variant *samp = sp_sampler_variant(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
- */
- /* 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 < 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;
+ if (is_gather) {
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ for (v = 0; v < TGSI_NUM_CHANNELS; v++) {
+ rgba[v][j] = k[v][j];
}
}
- 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 = -0.5F / fabsf(p[j]);
- ssss[j] = sign * -s[j] * ima + 0.5F;
- tttt[j] = t[j] * ima + 0.5F;
- samp->faces[j] = face;
- }
+ } else {
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ rgba[0][j] = k[0][j];
+ rgba[1][j] = k[0][j];
+ rgba[2][j] = k[0][j];
+ rgba[3][j] = 1.0F;
}
}
-
- /* 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);
}
-static void do_swizzling(const struct sp_sampler_variant *samp,
- float in[NUM_CHANNELS][QUAD_SIZE],
- float out[NUM_CHANNELS][QUAD_SIZE])
+static void
+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 = samp->key.bits.swizzle_r;
- const unsigned swizzle_g = samp->key.bits.swizzle_g;
- const unsigned swizzle_b = samp->key.bits.swizzle_b;
- const unsigned swizzle_a = samp->key.bits.swizzle_a;
+ 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;
+ float oneval = util_format_is_pure_integer(sview->format) ? uif(1) : 1.0f;
switch (swizzle_r) {
- case PIPE_SWIZZLE_ZERO:
+ case PIPE_SWIZZLE_0:
for (j = 0; j < 4; j++)
out[0][j] = 0.0f;
break;
- case PIPE_SWIZZLE_ONE:
+ case PIPE_SWIZZLE_1:
for (j = 0; j < 4; j++)
- out[0][j] = 1.0f;
+ out[0][j] = oneval;
break;
default:
assert(swizzle_r < 4);
}
switch (swizzle_g) {
- case PIPE_SWIZZLE_ZERO:
+ case PIPE_SWIZZLE_0:
for (j = 0; j < 4; j++)
out[1][j] = 0.0f;
break;
- case PIPE_SWIZZLE_ONE:
+ case PIPE_SWIZZLE_1:
for (j = 0; j < 4; j++)
- out[1][j] = 1.0f;
+ out[1][j] = oneval;
break;
default:
assert(swizzle_g < 4);
}
switch (swizzle_b) {
- case PIPE_SWIZZLE_ZERO:
+ case PIPE_SWIZZLE_0:
for (j = 0; j < 4; j++)
out[2][j] = 0.0f;
break;
- case PIPE_SWIZZLE_ONE:
+ case PIPE_SWIZZLE_1:
for (j = 0; j < 4; j++)
- out[2][j] = 1.0f;
+ out[2][j] = oneval;
break;
default:
assert(swizzle_b < 4);
}
switch (swizzle_a) {
- case PIPE_SWIZZLE_ZERO:
+ case PIPE_SWIZZLE_0:
for (j = 0; j < 4; j++)
out[3][j] = 0.0f;
break;
- case PIPE_SWIZZLE_ONE:
+ case PIPE_SWIZZLE_1:
for (j = 0; j < 4; j++)
- out[3][j] = 1.0f;
+ out[3][j] = oneval;
break;
default:
assert(swizzle_a < 4);
}
}
-static void
-sample_swizzle(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_variant *samp = sp_sampler_variant(tgsi_sampler);
- float rgba_temp[NUM_CHANNELS][QUAD_SIZE];
-
- samp->sample_target(tgsi_sampler, s, t, p, c0, control, rgba_temp);
-
- do_swizzling(samp, rgba_temp, rgba);
-}
-
static wrap_nearest_func
get_nearest_unorm_wrap(unsigned mode)
case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
return wrap_nearest_unorm_clamp_to_border;
default:
- assert(0);
+ debug_printf("illegal wrap mode %d with non-normalized coords\n", mode);
return wrap_nearest_unorm_clamp;
}
}
case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
return wrap_linear_unorm_clamp_to_border;
default:
- assert(0);
+ debug_printf("illegal wrap mode %d with non-normalized coords\n", mode);
return wrap_linear_unorm_clamp;
}
}
}
-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:
- 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:
- 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_X ||
+ view->swizzle_g != PIPE_SWIZZLE_Y ||
+ view->swizzle_b != PIPE_SWIZZLE_Z ||
+ view->swizzle_a != PIPE_SWIZZLE_W);
}
-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, bool gather)
{
- switch (key.bits.target) {
+ switch (sp_sview->base.target) {
+ case PIPE_BUFFER:
case PIPE_TEXTURE_1D:
if (filter == PIPE_TEX_FILTER_NEAREST)
return img_filter_1d_nearest;
case PIPE_TEXTURE_RECT:
/* Try for fast path:
*/
- if (key.bits.is_pot &&
+ if (!gather && sp_sview->pot2d &&
sampler->wrap_s == sampler->wrap_t &&
sampler->normalized_coords)
{
else
return img_filter_cube_linear;
break;
+ case PIPE_TEXTURE_CUBE_ARRAY:
+ if (filter == PIPE_TEX_FILTER_NEAREST)
+ return img_filter_cube_array_nearest;
+ else
+ return img_filter_cube_array_linear;
+ break;
case PIPE_TEXTURE_3D:
if (filter == PIPE_TEX_FILTER_NEAREST)
return img_filter_3d_nearest;
}
}
-
/**
- * Bind the given texture object and texture cache to the sampler variant.
+ * Get mip filter funcs, and optionally both img min filter and img mag
+ * filter. Note that both img filter function pointers must be either non-NULL
+ * or NULL.
*/
-void
-sp_sampler_variant_bind_view( struct sp_sampler_variant *samp,
- struct softpipe_tex_tile_cache *tex_cache,
- const struct pipe_sampler_view *view )
+static void
+get_filters(const struct sp_sampler_view *sp_sview,
+ const struct sp_sampler *sp_samp,
+ const enum tgsi_sampler_control control,
+ const struct sp_filter_funcs **funcs,
+ img_filter_func *min,
+ img_filter_func *mag)
+{
+ assert(funcs);
+ if (control == TGSI_SAMPLER_GATHER) {
+ *funcs = &funcs_nearest;
+ if (min) {
+ *min = get_img_filter(sp_sview, &sp_samp->base,
+ PIPE_TEX_FILTER_LINEAR, true);
+ }
+ } else if (sp_sview->pot2d & sp_samp->min_mag_equal_repeat_linear) {
+ *funcs = &funcs_linear_2d_linear_repeat_POT;
+ } else {
+ *funcs = sp_samp->filter_funcs;
+ if (min) {
+ assert(mag);
+ *min = get_img_filter(sp_sview, &sp_samp->base,
+ sp_samp->min_img_filter, false);
+ if (sp_samp->min_mag_equal) {
+ *mag = *min;
+ } else {
+ *mag = get_img_filter(sp_sview, &sp_samp->base,
+ sp_samp->base.mag_img_filter, false);
+ }
+ }
+ }
+}
+
+static void
+sample_mip(const struct sp_sampler_view *sp_sview,
+ const 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],
+ int gather_comp,
+ const float lod[TGSI_QUAD_SIZE],
+ const struct filter_args *filt_args,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
{
- const struct pipe_resource *texture = view->texture;
+ const struct sp_filter_funcs *funcs = NULL;
+ img_filter_func min_img_filter = NULL;
+ img_filter_func mag_img_filter = NULL;
+
+ get_filters(sp_sview, sp_samp, filt_args->control,
+ &funcs, &min_img_filter, &mag_img_filter);
+
+ funcs->filter(sp_sview, sp_samp, min_img_filter, mag_img_filter,
+ s, t, p, gather_comp, lod, filt_args, rgba);
+
+ if (sp_samp->base.compare_mode != PIPE_TEX_COMPARE_NONE) {
+ sample_compare(sp_sview, sp_samp, c0, filt_args->control, rgba);
+ }
+
+ if (sp_sview->need_swizzle && filt_args->control != TGSI_SAMPLER_GATHER) {
+ float rgba_temp[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE];
+ memcpy(rgba_temp, rgba, sizeof(rgba_temp));
+ do_swizzling(&sp_sview->base, rgba_temp, rgba);
+ }
- samp->view = view;
- samp->cache = tex_cache;
- samp->xpot = util_logbase2( texture->width0 );
- samp->ypot = util_logbase2( texture->height0 );
- samp->level = view->u.tex.first_level;
}
-void
-sp_sampler_variant_destroy( struct sp_sampler_variant *samp )
+/**
+ * This function uses cube texture coordinates to choose a face of a cube and
+ * computes the 2D cube face coordinates. Puts face info into the sampler
+ * faces[] array.
+ */
+static void
+convert_cube(const struct sp_sampler_view *sp_sview,
+ const 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],
+ float ssss[TGSI_QUAD_SIZE],
+ float tttt[TGSI_QUAD_SIZE],
+ float pppp[TGSI_QUAD_SIZE],
+ uint faces[TGSI_QUAD_SIZE])
{
- FREE(samp);
+ unsigned j;
+
+ 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.
+ */
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ const float rx = s[j], ry = t[j], rz = p[j];
+ const float arx = fabsf(rx), ary = fabsf(ry), arz = fabsf(rz);
+
+ if (arx >= ary && arx >= arz) {
+ const float sign = (rx >= 0.0F) ? 1.0F : -1.0F;
+ const uint face = (rx >= 0.0F) ?
+ PIPE_TEX_FACE_POS_X : PIPE_TEX_FACE_NEG_X;
+ const float ima = -0.5F / fabsf(s[j]);
+ ssss[j] = sign * p[j] * ima + 0.5F;
+ tttt[j] = t[j] * ima + 0.5F;
+ faces[j] = face;
+ }
+ else if (ary >= arx && ary >= arz) {
+ const float sign = (ry >= 0.0F) ? 1.0F : -1.0F;
+ const uint face = (ry >= 0.0F) ?
+ PIPE_TEX_FACE_POS_Y : PIPE_TEX_FACE_NEG_Y;
+ const float ima = -0.5F / fabsf(t[j]);
+ ssss[j] = -s[j] * ima + 0.5F;
+ tttt[j] = sign * -p[j] * ima + 0.5F;
+ faces[j] = face;
+ }
+ else {
+ const float sign = (rz >= 0.0F) ? 1.0F : -1.0F;
+ const uint face = (rz >= 0.0F) ?
+ PIPE_TEX_FACE_POS_Z : PIPE_TEX_FACE_NEG_Z;
+ const float ima = -0.5F / fabsf(p[j]);
+ ssss[j] = sign * -s[j] * ima + 0.5F;
+ tttt[j] = t[j] * ima + 0.5F;
+ faces[j] = face;
+ }
+ }
}
+
static void
-sample_get_dims(struct tgsi_sampler *tgsi_sampler, int level,
- int dims[4])
+sp_get_dims(const struct sp_sampler_view *sp_sview,
+ int level,
+ int dims[4])
{
- struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
- const struct pipe_sampler_view *view = samp->view;
- const struct pipe_resource *texture = view->texture;
+ const struct pipe_sampler_view *view = &sp_sview->base;
+ const struct pipe_resource *texture = view->texture;
+
+ if (view->target == PIPE_BUFFER) {
+ dims[0] = view->u.buf.size / util_format_get_blocksize(view->format);
+ /* the other values are undefined, but let's avoid potential valgrind
+ * warnings.
+ */
+ dims[1] = dims[2] = dims[3] = 0;
+ return;
+ }
- /* undefined according to EXT_gpu_program */
- level += view->u.tex.first_level;
- if (level > view->u.tex.last_level)
- return;
+ /* 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);
+ dims[3] = view->u.tex.last_level - view->u.tex.first_level + 1;
+ dims[0] = u_minify(texture->width0, level);
- switch(texture->target) {
- case PIPE_TEXTURE_1D_ARRAY:
- dims[1] = texture->array_size;
- /* fallthrough */
- case PIPE_TEXTURE_1D:
- case PIPE_BUFFER:
- return;
- case PIPE_TEXTURE_2D_ARRAY:
- dims[2] = texture->array_size;
- /* fallthrough */
- case PIPE_TEXTURE_2D:
- case PIPE_TEXTURE_CUBE:
- case PIPE_TEXTURE_RECT:
- dims[1] = u_minify(texture->height0, level);
- return;
- case PIPE_TEXTURE_3D:
- dims[1] = u_minify(texture->height0, level);
- dims[2] = u_minify(texture->depth0, level);
- return;
- default:
- assert(!"unexpected texture target in sample_get_dims()");
- return;
- }
+ switch (view->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;
+ default:
+ assert(!"unexpected texture target in sp_get_dims()");
+ return;
+ }
}
-/* this function is only used for unfiltered texel gets
- via the TGSI TXF opcode. */
+/**
+ * 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.
+ */
static void
-sample_get_texels(struct tgsi_sampler *tgsi_sampler,
- const int v_i[QUAD_SIZE],
- const int v_j[QUAD_SIZE],
- const int v_k[QUAD_SIZE],
- const int lod[QUAD_SIZE],
- const int8_t offset[3],
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+sp_get_texels(const 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])
{
- const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
union tex_tile_address addr;
- const struct pipe_resource *texture = samp->view->texture;
+ const struct pipe_resource *texture = sp_sview->base.texture;
int j, c;
const float *tx;
- bool need_swizzle = (samp->key.bits.swizzle_r != PIPE_SWIZZLE_RED ||
- samp->key.bits.swizzle_g != PIPE_SWIZZLE_GREEN ||
- samp->key.bits.swizzle_b != PIPE_SWIZZLE_BLUE ||
- samp->key.bits.swizzle_a != PIPE_SWIZZLE_ALPHA);
-
- addr.value = 0;
/* TODO write a better test for LOD */
- addr.bits.level = lod[0];
+ const unsigned level =
+ sp_sview->base.target == PIPE_BUFFER ? 0 :
+ CLAMP(lod[0] + sp_sview->base.u.tex.first_level,
+ sp_sview->base.u.tex.first_level,
+ sp_sview->base.u.tex.last_level);
+ const int width = u_minify(texture->width0, level);
+ const int height = u_minify(texture->height0, level);
+ const int depth = u_minify(texture->depth0, level);
+ unsigned elem_size, first_element, last_element;
- switch(texture->target) {
+ addr.value = 0;
+ addr.bits.level = level;
+
+ switch (sp_sview->base.target) {
+ case PIPE_BUFFER:
+ elem_size = util_format_get_blocksize(sp_sview->base.format);
+ first_element = sp_sview->base.u.buf.offset / elem_size;
+ last_element = (sp_sview->base.u.buf.offset +
+ sp_sview->base.u.buf.size) / elem_size - 1;
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ const int x = CLAMP(v_i[j] + offset[0] +
+ first_element,
+ first_element,
+ last_element);
+ tx = get_texel_buffer_no_border(sp_sview, addr, x, elem_size);
+ for (c = 0; c < 4; c++) {
+ rgba[c][j] = tx[c];
+ }
+ }
+ break;
case PIPE_TEXTURE_1D:
- for (j = 0; j < QUAD_SIZE; j++) {
- tx = get_texel_2d(samp, addr, v_i[j] + offset[0], 0);
- for (c = 0; c < 4; c++) {
- rgba[c][j] = tx[c];
- }
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ const int x = CLAMP(v_i[j] + offset[0], 0, width - 1);
+ tx = get_texel_2d_no_border(sp_sview, addr, x,
+ sp_sview->base.u.tex.first_layer);
+ for (c = 0; c < 4; c++) {
+ rgba[c][j] = tx[c];
+ }
}
break;
case PIPE_TEXTURE_1D_ARRAY:
- for (j = 0; j < QUAD_SIZE; j++) {
- tx = get_texel_1d_array(samp, addr, v_i[j] + offset[0],
- v_j[j] + offset[1]);
- for (c = 0; c < 4; c++) {
- rgba[c][j] = tx[c];
- }
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ const int x = CLAMP(v_i[j] + offset[0], 0, width - 1);
+ const 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 < QUAD_SIZE; j++) {
- tx = get_texel_2d(samp, addr, v_i[j] + offset[0],
- v_j[j] + offset[1]);
- for (c = 0; c < 4; c++) {
- rgba[c][j] = tx[c];
- }
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ const int x = CLAMP(v_i[j] + offset[0], 0, width - 1);
+ const int y = CLAMP(v_j[j] + offset[1], 0, height - 1);
+ tx = get_texel_3d_no_border(sp_sview, addr, x, y,
+ sp_sview->base.u.tex.first_layer);
+ for (c = 0; c < 4; c++) {
+ rgba[c][j] = tx[c];
+ }
}
break;
case PIPE_TEXTURE_2D_ARRAY:
- for (j = 0; j < QUAD_SIZE; j++) {
- tx = get_texel_2d_array(samp, addr, v_i[j] + offset[0],
- v_j[j] + offset[1],
- v_k[j] + offset[2]);
- for (c = 0; c < 4; c++) {
- rgba[c][j] = tx[c];
- }
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
+ const int x = CLAMP(v_i[j] + offset[0], 0, width - 1);
+ const int y = CLAMP(v_j[j] + offset[1], 0, height - 1);
+ const 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 < QUAD_SIZE; j++) {
- tx = get_texel_3d(samp, addr, v_i[j] + offset[0],
- v_j[j] + offset[1],
- v_k[j] + offset[2]);
- for (c = 0; c < 4; c++) {
- rgba[c][j] = tx[c];
- }
+ 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 */
+ case PIPE_TEXTURE_CUBE_ARRAY:
default:
assert(!"Unknown or CUBE texture type in TXF processing\n");
break;
}
- if (need_swizzle) {
- float rgba_temp[NUM_CHANNELS][QUAD_SIZE];
+ if (sp_sview->need_swizzle) {
+ float rgba_temp[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE];
memcpy(rgba_temp, rgba, sizeof(rgba_temp));
- do_swizzling(samp, rgba_temp, rgba);
+ do_swizzling(&sp_sview->base, rgba_temp, rgba);
}
}
-/**
- * Create a sampler variant for a given set of non-orthogonal state.
- */
-struct sp_sampler_variant *
-sp_create_sampler_variant( const struct pipe_sampler_state *sampler,
- const union sp_sampler_key key )
+
+
+void *
+softpipe_create_sampler_state(struct pipe_context *pipe,
+ const struct pipe_sampler_state *sampler)
{
- struct sp_sampler_variant *samp = CALLOC_STRUCT(sp_sampler_variant);
- if (!samp)
- return NULL;
+ struct sp_sampler *samp = CALLOC_STRUCT(sp_sampler);
- samp->sampler = sampler;
- samp->key = key;
+ 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->filter_funcs = &funcs_none_no_filter_select;
else
- samp->mip_filter = mip_filter_none;
+ samp->filter_funcs = &funcs_none;
break;
case PIPE_TEX_MIPFILTER_NEAREST:
- samp->mip_filter = mip_filter_nearest;
+ samp->filter_funcs = &funcs_nearest;
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->filter_funcs = &funcs_linear;
+
/* Anisotropic filtering extension. */
if (sampler->max_anisotropy > 1) {
- samp->mip_filter = mip_filter_linear_aniso;
-
- /* Override min_img_filter:
- * min_img_filter needs to be set to NEAREST since we need to access
- * each texture pixel as it is and weight it later; using linear
- * filters will have incorrect results.
- * By setting the filter to NEAREST here, we can avoid calling the
- * generic img_filter_2d_nearest in the anisotropic filter function,
- * making it possible to use one of the accelerated implementations
- */
- samp->min_img_filter = get_img_filter(key, PIPE_TEX_FILTER_NEAREST, sampler);
-
- /* on first access create the lookup table containing the filter weights. */
+ samp->filter_funcs = &funcs_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,
+ enum pipe_shader_type shader)
+{
+ if (shader != PIPE_SHADER_FRAGMENT)
+ return compute_lambda_vert;
+
+ switch (view->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:
+ return compute_lambda_2d;
+ case PIPE_TEXTURE_CUBE:
+ case PIPE_TEXTURE_CUBE_ARRAY:
+ return compute_lambda_cube;
+ case PIPE_TEXTURE_3D:
+ return compute_lambda_3d;
+ default:
+ assert(0);
+ return compute_lambda_1d;
+ }
+}
+
+
+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);
+ const 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;
+
+#ifdef DEBUG
+ /*
+ * This is possibly too lenient, but the primary reason is just
+ * to catch gallium frontends which forget to initialize this, so
+ * it only catches clearly impossible view targets.
+ */
+ if (view->target != resource->target) {
+ if (view->target == PIPE_TEXTURE_1D)
+ assert(resource->target == PIPE_TEXTURE_1D_ARRAY);
+ else if (view->target == PIPE_TEXTURE_1D_ARRAY)
+ assert(resource->target == PIPE_TEXTURE_1D);
+ else if (view->target == PIPE_TEXTURE_2D)
+ assert(resource->target == PIPE_TEXTURE_2D_ARRAY ||
+ resource->target == PIPE_TEXTURE_CUBE ||
+ resource->target == PIPE_TEXTURE_CUBE_ARRAY);
+ else if (view->target == PIPE_TEXTURE_2D_ARRAY)
+ assert(resource->target == PIPE_TEXTURE_2D ||
+ resource->target == PIPE_TEXTURE_CUBE ||
+ resource->target == PIPE_TEXTURE_CUBE_ARRAY);
+ else if (view->target == PIPE_TEXTURE_CUBE)
+ assert(resource->target == PIPE_TEXTURE_CUBE_ARRAY ||
+ resource->target == PIPE_TEXTURE_2D_ARRAY);
+ else if (view->target == PIPE_TEXTURE_CUBE_ARRAY)
+ assert(resource->target == PIPE_TEXTURE_CUBE ||
+ resource->target == PIPE_TEXTURE_2D_ARRAY);
+ else
+ assert(0);
+ }
+#endif
+
+ if (any_swizzle(view)) {
+ sview->need_swizzle = TRUE;
+ }
- if (sampler->compare_mode != PIPE_TEX_COMPARE_NONE) {
- samp->compare = sample_compare;
+ sview->need_cube_convert = (view->target == PIPE_TEXTURE_CUBE ||
+ view->target == PIPE_TEXTURE_CUBE_ARRAY);
+ sview->pot2d = spr->pot &&
+ (view->target == PIPE_TEXTURE_2D ||
+ view->target == PIPE_TEXTURE_RECT);
+
+ sview->xpot = util_logbase2( resource->width0 );
+ sview->ypot = util_logbase2( resource->height0 );
}
- else {
- /* Skip compare operation by promoting the mip_filter function
- * pointer:
- */
- samp->compare = samp->mip_filter;
+
+ return (struct pipe_sampler_view *) sview;
+}
+
+
+static inline const struct sp_tgsi_sampler *
+sp_tgsi_sampler_cast_c(const struct tgsi_sampler *sampler)
+{
+ return (const struct sp_tgsi_sampler *)sampler;
+}
+
+
+static void
+sp_tgsi_get_dims(struct tgsi_sampler *tgsi_sampler,
+ const unsigned sview_index,
+ int level, int dims[4])
+{
+ const struct sp_tgsi_sampler *sp_samp =
+ sp_tgsi_sampler_cast_c(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;
+ }
+ sp_get_dims(&sp_samp->sp_sview[sview_index], level, dims);
+}
+
+
+static void prepare_compare_values(enum pipe_texture_target target,
+ const float p[TGSI_QUAD_SIZE],
+ const float c0[TGSI_QUAD_SIZE],
+ const float c1[TGSI_QUAD_SIZE],
+ float pc[TGSI_QUAD_SIZE])
+{
+ if (target == PIPE_TEXTURE_2D_ARRAY ||
+ target == PIPE_TEXTURE_CUBE) {
+ pc[0] = c0[0];
+ pc[1] = c0[1];
+ pc[2] = c0[2];
+ pc[3] = c0[3];
+ } else if (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];
}
-
- if (key.bits.target == PIPE_TEXTURE_CUBE) {
- samp->sample_target = sample_cube;
+}
+
+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_in[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])
+{
+ const struct sp_tgsi_sampler *sp_tgsi_samp =
+ sp_tgsi_sampler_cast_c(tgsi_sampler);
+ struct sp_sampler_view sp_sview;
+ const struct sp_sampler *sp_samp;
+ struct filter_args filt_args;
+ float compare_values[TGSI_QUAD_SIZE];
+ float lod[TGSI_QUAD_SIZE];
+ int c;
+
+ assert(sview_index < PIPE_MAX_SHADER_SAMPLER_VIEWS);
+ assert(sampler_index < PIPE_MAX_SAMPLERS);
+ assert(sp_tgsi_samp->sp_sampler[sampler_index]);
+
+ memcpy(&sp_sview, &sp_tgsi_samp->sp_sview[sview_index],
+ sizeof(struct sp_sampler_view));
+ sp_samp = sp_tgsi_samp->sp_sampler[sampler_index];
+
+ if (util_format_is_unorm(sp_sview.base.format)) {
+ for (c = 0; c < TGSI_NUM_CHANNELS; c++)
+ sp_sview.border_color.f[c] = CLAMP(sp_samp->base.border_color.f[c],
+ 0.0f, 1.0f);
+ } else if (util_format_is_snorm(sp_sview.base.format)) {
+ for (c = 0; c < TGSI_NUM_CHANNELS; c++)
+ sp_sview.border_color.f[c] = CLAMP(sp_samp->base.border_color.f[c],
+ -1.0f, 1.0f);
+ } else {
+ memcpy(sp_sview.border_color.f, sp_samp->base.border_color.f,
+ TGSI_NUM_CHANNELS * sizeof(float));
}
- else {
- samp->faces[0] = 0;
- samp->faces[1] = 0;
- samp->faces[2] = 0;
- samp->faces[3] = 0;
- /* Skip cube face determination by promoting the compare
- * function pointer:
- */
- samp->sample_target = samp->compare;
+ /* always have a view here but texture is NULL if no sampler view was set. */
+ if (!sp_sview.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;
}
- if (key.bits.swizzle_r != PIPE_SWIZZLE_RED ||
- key.bits.swizzle_g != PIPE_SWIZZLE_GREEN ||
- key.bits.swizzle_b != PIPE_SWIZZLE_BLUE ||
- key.bits.swizzle_a != PIPE_SWIZZLE_ALPHA) {
- samp->base.get_samples = sample_swizzle;
+ if (sp_samp->base.compare_mode != PIPE_TEX_COMPARE_NONE)
+ prepare_compare_values(sp_sview.base.target, p, c0, lod_in, compare_values);
+
+ filt_args.control = control;
+ filt_args.offset = offset;
+ int gather_comp = get_gather_component(lod_in);
+
+ compute_lambda_lod(&sp_sview, sp_samp, s, t, p, derivs, lod_in, control, lod);
+
+ if (sp_sview.need_cube_convert) {
+ float cs[TGSI_QUAD_SIZE];
+ float ct[TGSI_QUAD_SIZE];
+ float cp[TGSI_QUAD_SIZE];
+ uint faces[TGSI_QUAD_SIZE];
+
+ convert_cube(&sp_sview, sp_samp, s, t, p, c0, cs, ct, cp, faces);
+
+ filt_args.faces = faces;
+ sample_mip(&sp_sview, sp_samp, cs, ct, cp, compare_values, gather_comp, lod, &filt_args, rgba);
+ } else {
+ static const uint zero_faces[TGSI_QUAD_SIZE] = {0, 0, 0, 0};
+
+ filt_args.faces = zero_faces;
+ sample_mip(&sp_sview, sp_samp, s, t, p, compare_values, gather_comp, lod, &filt_args, rgba);
}
- else {
- samp->base.get_samples = samp->sample_target;
+}
+
+static void
+sp_tgsi_query_lod(const 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 enum tgsi_sampler_control control,
+ float mipmap[TGSI_QUAD_SIZE],
+ float lod[TGSI_QUAD_SIZE])
+{
+ static const float lod_in[TGSI_QUAD_SIZE] = { 0.0, 0.0, 0.0, 0.0 };
+ static const float dummy_grad[3][2][TGSI_QUAD_SIZE];
+
+ const struct sp_tgsi_sampler *sp_tgsi_samp =
+ sp_tgsi_sampler_cast_c(tgsi_sampler);
+ const struct sp_sampler_view *sp_sview;
+ const struct sp_sampler *sp_samp;
+ const struct sp_filter_funcs *funcs;
+ int i;
+
+ assert(sview_index < PIPE_MAX_SHADER_SAMPLER_VIEWS);
+ assert(sampler_index < PIPE_MAX_SAMPLERS);
+ assert(sp_tgsi_samp->sp_sampler[sampler_index]);
+
+ sp_sview = &sp_tgsi_samp->sp_sview[sview_index];
+ sp_samp = sp_tgsi_samp->sp_sampler[sampler_index];
+ /* always have a view here but texture is NULL if no sampler view was
+ * set. */
+ if (!sp_sview->base.texture) {
+ for (i = 0; i < TGSI_QUAD_SIZE; i++) {
+ mipmap[i] = 0.0f;
+ lod[i] = 0.0f;
+ }
+ return;
}
+ compute_lambda_lod_unclamped(sp_sview, sp_samp,
+ s, t, p, dummy_grad, lod_in, control, lod);
+
+ get_filters(sp_sview, sp_samp, control, &funcs, NULL, NULL);
+ funcs->relative_level(sp_sview, sp_samp, lod, mipmap);
+}
+
+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])
+{
+ const struct sp_tgsi_sampler *sp_samp =
+ sp_tgsi_sampler_cast_c(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;
+ samp->base.query_lod = sp_tgsi_query_lod;
- samp->base.get_dims = sample_get_dims;
- samp->base.get_texel = sample_get_texels;
return samp;
}
projects / mesa.git / blobdiff