[Mesa-dev] [PATCH 5/5] st/mesa: move all sampler view code into new st_sampler_view.[ch] files

Marek Olšák maraeo at gmail.com
Sun Oct 2 20:31:59 UTC 2016


FYI, the series breaks this test:

piglit/bin/glsl-resource-not-bound Buffer -auto -fbo
glsl-resource-not-bound: state_tracker/st_sampler_view.c:456:
st_get_texture_sampler_view_from_stobj: Assertion `stObj->pt' failed.
Aborted

Removing the assertion fixes it. Note that empty TBO slots are NULL.

Marek



On Sun, Oct 2, 2016 at 2:29 PM, Marek Olšák <maraeo at gmail.com> wrote:
> You also need this:
>
> diff --git a/src/mesa/state_tracker/st_vdpau.c
> b/src/mesa/state_tracker/st_vdpau.c
> index 4f599dd..cafbd3d 100644
> --- a/src/mesa/state_tracker/st_vdpau.c
> +++ b/src/mesa/state_tracker/st_vdpau.c
> @@ -44,6 +44,7 @@
>  #include "st_vdpau.h"
>  #include "st_context.h"
>  #include "st_texture.h"
> +#include "st_sampler_view.h"
>  #include "st_format.h"
>  #include "st_cb_flush.h"
>
> With that fixed, the series is:
>
> Reviewed-by: Marek Olšák <marek.olsak at amd.com>
>
> Marek
>
>
>
> On Sat, Oct 1, 2016 at 12:53 AM, Brian Paul <brianp at vmware.com> wrote:
>> Previously, the sampler view code was scattered across several different
>> files.
>>
>> Note, the previous REALLOC(), FREE() for st_texture_object::sampler_views
>> are replaced by realloc(), free() to avoid conflicting macros in Mesa vs.
>> Gallium.
>> ---
>>  src/mesa/Makefile.sources                      |   2 +
>>  src/mesa/state_tracker/st_atom_pixeltransfer.c |   1 +
>>  src/mesa/state_tracker/st_atom_texture.c       | 358 +-----------------
>>  src/mesa/state_tracker/st_cb_bitmap.c          |   1 +
>>  src/mesa/state_tracker/st_cb_drawpixels.c      |   1 +
>>  src/mesa/state_tracker/st_cb_eglimage.c        |   2 +
>>  src/mesa/state_tracker/st_cb_texture.c         |   1 +
>>  src/mesa/state_tracker/st_context.c            |   1 +
>>  src/mesa/state_tracker/st_sampler_view.c       | 487 +++++++++++++++++++++++++
>>  src/mesa/state_tracker/st_sampler_view.h       |  83 +++++
>>  src/mesa/state_tracker/st_texture.c            |  93 -----
>>  src/mesa/state_tracker/st_texture.h            |  34 --
>>  12 files changed, 580 insertions(+), 484 deletions(-)
>>  create mode 100644 src/mesa/state_tracker/st_sampler_view.c
>>  create mode 100644 src/mesa/state_tracker/st_sampler_view.h
>>
>> diff --git a/src/mesa/Makefile.sources b/src/mesa/Makefile.sources
>> index fbe5861..410a61a 100644
>> --- a/src/mesa/Makefile.sources
>> +++ b/src/mesa/Makefile.sources
>> @@ -510,6 +510,8 @@ STATETRACKER_FILES = \
>>         state_tracker/st_pbo.h \
>>         state_tracker/st_program.c \
>>         state_tracker/st_program.h \
>> +       state_tracker/st_sampler_view.c \
>> +       state_tracker/st_sampler_view.h \
>>         state_tracker/st_scissor.c \
>>         state_tracker/st_scissor.h \
>>         state_tracker/st_texture.c \
>> diff --git a/src/mesa/state_tracker/st_atom_pixeltransfer.c b/src/mesa/state_tracker/st_atom_pixeltransfer.c
>> index 26d8ade..a2951a1 100644
>> --- a/src/mesa/state_tracker/st_atom_pixeltransfer.c
>> +++ b/src/mesa/state_tracker/st_atom_pixeltransfer.c
>> @@ -30,6 +30,7 @@
>>   */
>>
>>  #include "st_context.h"
>> +#include "st_sampler_view.h"
>>  #include "st_texture.h"
>>
>>  #include "util/u_inlines.h"
>> diff --git a/src/mesa/state_tracker/st_atom_texture.c b/src/mesa/state_tracker/st_atom_texture.c
>> index e5574bd..c8ae62c 100644
>> --- a/src/mesa/state_tracker/st_atom_texture.c
>> +++ b/src/mesa/state_tracker/st_atom_texture.c
>> @@ -42,6 +42,7 @@
>>
>>  #include "st_context.h"
>>  #include "st_atom.h"
>> +#include "st_sampler_view.h"
>>  #include "st_texture.h"
>>  #include "st_format.h"
>>  #include "st_cb_texture.h"
>> @@ -51,363 +52,6 @@
>>  #include "cso_cache/cso_context.h"
>>
>>
>> -/**
>> - * Return swizzle1(swizzle2)
>> - */
>> -static unsigned
>> -swizzle_swizzle(unsigned swizzle1, unsigned swizzle2)
>> -{
>> -   unsigned i, swz[4];
>> -
>> -   if (swizzle1 == SWIZZLE_XYZW) {
>> -      /* identity swizzle, no change to swizzle2 */
>> -      return swizzle2;
>> -   }
>> -
>> -   for (i = 0; i < 4; i++) {
>> -      unsigned s = GET_SWZ(swizzle1, i);
>> -      switch (s) {
>> -      case SWIZZLE_X:
>> -      case SWIZZLE_Y:
>> -      case SWIZZLE_Z:
>> -      case SWIZZLE_W:
>> -         swz[i] = GET_SWZ(swizzle2, s);
>> -         break;
>> -      case SWIZZLE_ZERO:
>> -         swz[i] = SWIZZLE_ZERO;
>> -         break;
>> -      case SWIZZLE_ONE:
>> -         swz[i] = SWIZZLE_ONE;
>> -         break;
>> -      default:
>> -         assert(!"Bad swizzle term");
>> -         swz[i] = SWIZZLE_X;
>> -      }
>> -   }
>> -
>> -   return MAKE_SWIZZLE4(swz[0], swz[1], swz[2], swz[3]);
>> -}
>> -
>> -
>> -/**
>> - * Given a user-specified texture base format, the actual gallium texture
>> - * format and the current GL_DEPTH_MODE, return a texture swizzle.
>> - *
>> - * Consider the case where the user requests a GL_RGB internal texture
>> - * format the driver actually uses an RGBA format.  The A component should
>> - * be ignored and sampling from the texture should always return (r,g,b,1).
>> - * But if we rendered to the texture we might have written A values != 1.
>> - * By sampling the texture with a ".xyz1" swizzle we'll get the expected A=1.
>> - * This function computes the texture swizzle needed to get the expected
>> - * values.
>> - *
>> - * In the case of depth textures, the GL_DEPTH_MODE state determines the
>> - * texture swizzle.
>> - *
>> - * This result must be composed with the user-specified swizzle to get
>> - * the final swizzle.
>> - */
>> -static unsigned
>> -compute_texture_format_swizzle(GLenum baseFormat, GLenum depthMode,
>> -                               enum pipe_format actualFormat,
>> -                               unsigned glsl_version)
>> -{
>> -   switch (baseFormat) {
>> -   case GL_RGBA:
>> -      return SWIZZLE_XYZW;
>> -   case GL_RGB:
>> -      if (util_format_has_alpha(actualFormat))
>> -         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_ONE);
>> -      else
>> -         return SWIZZLE_XYZW;
>> -   case GL_RG:
>> -      if (util_format_get_nr_components(actualFormat) > 2)
>> -         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_ZERO, SWIZZLE_ONE);
>> -      else
>> -         return SWIZZLE_XYZW;
>> -   case GL_RED:
>> -      if (util_format_get_nr_components(actualFormat) > 1)
>> -         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_ZERO,
>> -                              SWIZZLE_ZERO, SWIZZLE_ONE);
>> -      else
>> -         return SWIZZLE_XYZW;
>> -   case GL_ALPHA:
>> -      if (util_format_get_nr_components(actualFormat) > 1)
>> -         return MAKE_SWIZZLE4(SWIZZLE_ZERO, SWIZZLE_ZERO,
>> -                              SWIZZLE_ZERO, SWIZZLE_W);
>> -      else
>> -         return SWIZZLE_XYZW;
>> -   case GL_LUMINANCE:
>> -      if (util_format_get_nr_components(actualFormat) > 1)
>> -         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_X, SWIZZLE_X, SWIZZLE_ONE);
>> -      else
>> -         return SWIZZLE_XYZW;
>> -   case GL_LUMINANCE_ALPHA:
>> -      if (util_format_get_nr_components(actualFormat) > 2)
>> -         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_X, SWIZZLE_X, SWIZZLE_W);
>> -      else
>> -         return SWIZZLE_XYZW;
>> -   case GL_INTENSITY:
>> -      if (util_format_get_nr_components(actualFormat) > 1)
>> -         return SWIZZLE_XXXX;
>> -      else
>> -         return SWIZZLE_XYZW;
>> -   case GL_STENCIL_INDEX:
>> -   case GL_DEPTH_STENCIL:
>> -   case GL_DEPTH_COMPONENT:
>> -      /* Now examine the depth mode */
>> -      switch (depthMode) {
>> -      case GL_LUMINANCE:
>> -         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_X, SWIZZLE_X, SWIZZLE_ONE);
>> -      case GL_INTENSITY:
>> -         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_X, SWIZZLE_X, SWIZZLE_X);
>> -      case GL_ALPHA:
>> -         /* The texture(sampler*Shadow) functions from GLSL 1.30 ignore
>> -          * the depth mode and return float, while older shadow* functions
>> -          * and ARB_fp instructions return vec4 according to the depth mode.
>> -          *
>> -          * The problem with the GLSL 1.30 functions is that GL_ALPHA forces
>> -          * them to return 0, breaking them completely.
>> -          *
>> -          * A proper fix would increase code complexity and that's not worth
>> -          * it for a rarely used feature such as the GL_ALPHA depth mode
>> -          * in GL3. Therefore, change GL_ALPHA to GL_INTENSITY for all
>> -          * shaders that use GLSL 1.30 or later.
>> -          *
>> -          * BTW, it's required that sampler views are updated when
>> -          * shaders change (check_sampler_swizzle takes care of that).
>> -          */
>> -         if (glsl_version && glsl_version >= 130)
>> -            return SWIZZLE_XXXX;
>> -         else
>> -            return MAKE_SWIZZLE4(SWIZZLE_ZERO, SWIZZLE_ZERO,
>> -                                 SWIZZLE_ZERO, SWIZZLE_X);
>> -      case GL_RED:
>> -         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_ZERO,
>> -                              SWIZZLE_ZERO, SWIZZLE_ONE);
>> -      default:
>> -         assert(!"Unexpected depthMode");
>> -         return SWIZZLE_XYZW;
>> -      }
>> -   default:
>> -      assert(!"Unexpected baseFormat");
>> -      return SWIZZLE_XYZW;
>> -   }
>> -}
>> -
>> -
>> -static unsigned
>> -get_texture_format_swizzle(const struct st_context *st,
>> -                           const struct st_texture_object *stObj,
>> -                           unsigned glsl_version)
>> -{
>> -   GLenum baseFormat = _mesa_texture_base_format(&stObj->base);
>> -   unsigned tex_swizzle;
>> -
>> -   if (baseFormat != GL_NONE) {
>> -      GLenum depth_mode = stObj->base.DepthMode;
>> -      /* In ES 3.0, DEPTH_TEXTURE_MODE is expected to be GL_RED for textures
>> -       * with depth component data specified with a sized internal format.
>> -       */
>> -      if (_mesa_is_gles3(st->ctx) &&
>> -          util_format_is_depth_or_stencil(stObj->pt->format)) {
>> -         const struct gl_texture_image *firstImage =
>> -            _mesa_base_tex_image(&stObj->base);
>> -         if (firstImage->InternalFormat != GL_DEPTH_COMPONENT &&
>> -             firstImage->InternalFormat != GL_DEPTH_STENCIL &&
>> -             firstImage->InternalFormat != GL_STENCIL_INDEX)
>> -            depth_mode = GL_RED;
>> -      }
>> -      tex_swizzle = compute_texture_format_swizzle(baseFormat,
>> -                                                   depth_mode,
>> -                                                   stObj->pt->format,
>> -                                                   glsl_version);
>> -   }
>> -   else {
>> -      tex_swizzle = SWIZZLE_XYZW;
>> -   }
>> -
>> -   /* Combine the texture format swizzle with user's swizzle */
>> -   return swizzle_swizzle(stObj->base._Swizzle, tex_swizzle);
>> -}
>> -
>> -
>> -/**
>> - * Return TRUE if the texture's sampler view swizzle is not equal to
>> - * the texture's swizzle.
>> - *
>> - * \param stObj  the st texture object,
>> - */
>> -static boolean
>> -check_sampler_swizzle(const struct st_context *st,
>> -                      const struct st_texture_object *stObj,
>> -                     const struct pipe_sampler_view *sv, unsigned glsl_version)
>> -{
>> -   unsigned swizzle = get_texture_format_swizzle(st, stObj, glsl_version);
>> -
>> -   return ((sv->swizzle_r != GET_SWZ(swizzle, 0)) ||
>> -           (sv->swizzle_g != GET_SWZ(swizzle, 1)) ||
>> -           (sv->swizzle_b != GET_SWZ(swizzle, 2)) ||
>> -           (sv->swizzle_a != GET_SWZ(swizzle, 3)));
>> -}
>> -
>> -
>> -static unsigned
>> -last_level(const struct st_texture_object *stObj)
>> -{
>> -   unsigned ret = MIN2(stObj->base.MinLevel + stObj->base._MaxLevel,
>> -                       stObj->pt->last_level);
>> -   if (stObj->base.Immutable)
>> -      ret = MIN2(ret, stObj->base.MinLevel + stObj->base.NumLevels - 1);
>> -   return ret;
>> -}
>> -
>> -static unsigned
>> -last_layer(const struct st_texture_object *stObj)
>> -{
>> -   if (stObj->base.Immutable && stObj->pt->array_size > 1)
>> -      return MIN2(stObj->base.MinLayer + stObj->base.NumLayers - 1,
>> -                  stObj->pt->array_size - 1);
>> -   return stObj->pt->array_size - 1;
>> -}
>> -
>> -
>> -/**
>> - * Determine the format for the texture sampler view.
>> - */
>> -static enum pipe_format
>> -get_sampler_view_format(struct st_context *st,
>> -                        const struct st_texture_object *stObj,
>> -                        const struct gl_sampler_object *samp)
>> -{
>> -   enum pipe_format format;
>> -
>> -   if (stObj->base.Target == GL_TEXTURE_BUFFER) {
>> -      format =
>> -         st_mesa_format_to_pipe_format(st, stObj->base._BufferObjectFormat);
>> -   }
>> -   else {
>> -      format =
>> -         stObj->surface_based ? stObj->surface_format : stObj->pt->format;
>> -
>> -      if (util_format_is_depth_and_stencil(format)) {
>> -         if (stObj->base.StencilSampling) {
>> -            format = util_format_stencil_only(format);
>> -         }
>> -         else {
>> -            GLenum baseFormat = _mesa_texture_base_format(&stObj->base);
>> -            if (baseFormat == GL_STENCIL_INDEX) {
>> -               format = util_format_stencil_only(format);
>> -            }
>> -         }
>> -      }
>> -      else {
>> -         /* If sRGB decoding is off, use the linear format */
>> -         if (samp->sRGBDecode == GL_SKIP_DECODE_EXT) {
>> -            format = util_format_linear(format);
>> -         }
>> -
>> -         /* Use R8_UNORM for video formats */
>> -         switch (format) {
>> -         case PIPE_FORMAT_NV12:
>> -         case PIPE_FORMAT_IYUV:
>> -            format = PIPE_FORMAT_R8_UNORM;
>> -            break;
>> -         default:
>> -            break;
>> -         }
>> -      }
>> -   }
>> -
>> -   return format;
>> -}
>> -
>> -
>> -static struct pipe_sampler_view *
>> -st_create_texture_sampler_view_from_stobj(struct st_context *st,
>> -                                         struct st_texture_object *stObj,
>> -                                         enum pipe_format format,
>> -                                          unsigned glsl_version)
>> -{
>> -   struct pipe_sampler_view templ;
>> -   unsigned swizzle = get_texture_format_swizzle(st, stObj, glsl_version);
>> -
>> -   u_sampler_view_default_template(&templ,
>> -                                   stObj->pt,
>> -                                   format);
>> -
>> -   if (stObj->pt->target == PIPE_BUFFER) {
>> -      unsigned base, size;
>> -
>> -      base = stObj->base.BufferOffset;
>> -      if (base >= stObj->pt->width0)
>> -         return NULL;
>> -      size = MIN2(stObj->pt->width0 - base, (unsigned)stObj->base.BufferSize);
>> -      if (!size)
>> -         return NULL;
>> -
>> -      templ.u.buf.offset = base;
>> -      templ.u.buf.size = size;
>> -   } else {
>> -      templ.u.tex.first_level = stObj->base.MinLevel + stObj->base.BaseLevel;
>> -      templ.u.tex.last_level = last_level(stObj);
>> -      assert(templ.u.tex.first_level <= templ.u.tex.last_level);
>> -      templ.u.tex.first_layer = stObj->base.MinLayer;
>> -      templ.u.tex.last_layer = last_layer(stObj);
>> -      assert(templ.u.tex.first_layer <= templ.u.tex.last_layer);
>> -      templ.target = gl_target_to_pipe(stObj->base.Target);
>> -   }
>> -
>> -   templ.swizzle_r = GET_SWZ(swizzle, 0);
>> -   templ.swizzle_g = GET_SWZ(swizzle, 1);
>> -   templ.swizzle_b = GET_SWZ(swizzle, 2);
>> -   templ.swizzle_a = GET_SWZ(swizzle, 3);
>> -
>> -   return st->pipe->create_sampler_view(st->pipe, stObj->pt, &templ);
>> -}
>> -
>> -
>> -static struct pipe_sampler_view *
>> -st_get_texture_sampler_view_from_stobj(struct st_context *st,
>> -                                       struct st_texture_object *stObj,
>> -                                       const struct gl_sampler_object *samp,
>> -                                       unsigned glsl_version)
>> -{
>> -   struct pipe_sampler_view **sv;
>> -
>> -   if (!stObj || !stObj->pt) {
>> -      return NULL;
>> -   }
>> -
>> -   sv = st_texture_get_sampler_view(st, stObj);
>> -
>> -   if (*sv) {
>> -      /* Debug check: make sure that the sampler view's parameters are
>> -       * what they're supposed to be.
>> -       */
>> -      struct pipe_sampler_view *view = *sv;
>> -      assert(!check_sampler_swizzle(st, stObj, view, glsl_version));
>> -      assert(get_sampler_view_format(st, stObj, samp) == view->format);
>> -      assert(gl_target_to_pipe(stObj->base.Target) == view->target);
>> -      assert(stObj->base.MinLevel + stObj->base.BaseLevel ==
>> -             view->u.tex.first_level);
>> -      assert(last_level(stObj) == view->u.tex.last_level);
>> -      assert(stObj->base.MinLayer == view->u.tex.first_layer);
>> -      assert(last_layer(stObj) == view->u.tex.last_layer);
>> -   }
>> -   else {
>> -      /* create new sampler view */
>> -      enum pipe_format format = get_sampler_view_format(st, stObj, samp);
>> -
>> -      *sv = st_create_texture_sampler_view_from_stobj(st, stObj,
>> -                                                      format, glsl_version);
>> -
>> -   }
>> -
>> -   return *sv;
>> -}
>> -
>> -
>>  static GLboolean
>>  update_single_texture(struct st_context *st,
>>                        struct pipe_sampler_view **sampler_view,
>> diff --git a/src/mesa/state_tracker/st_cb_bitmap.c b/src/mesa/state_tracker/st_cb_bitmap.c
>> index a7d269b..1e4becd 100644
>> --- a/src/mesa/state_tracker/st_cb_bitmap.c
>> +++ b/src/mesa/state_tracker/st_cb_bitmap.c
>> @@ -45,6 +45,7 @@
>>  #include "st_draw.h"
>>  #include "st_program.h"
>>  #include "st_cb_bitmap.h"
>> +#include "st_sampler_view.h"
>>  #include "st_texture.h"
>>
>>  #include "pipe/p_context.h"
>> diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c b/src/mesa/state_tracker/st_cb_drawpixels.c
>> index b5f4227..7f92e02 100644
>> --- a/src/mesa/state_tracker/st_cb_drawpixels.c
>> +++ b/src/mesa/state_tracker/st_cb_drawpixels.c
>> @@ -60,6 +60,7 @@
>>  #include "st_draw.h"
>>  #include "st_format.h"
>>  #include "st_program.h"
>> +#include "st_sampler_view.h"
>>  #include "st_scissor.h"
>>  #include "st_texture.h"
>>
>> diff --git a/src/mesa/state_tracker/st_cb_eglimage.c b/src/mesa/state_tracker/st_cb_eglimage.c
>> index 7bea565..c425154 100644
>> --- a/src/mesa/state_tracker/st_cb_eglimage.c
>> +++ b/src/mesa/state_tracker/st_cb_eglimage.c
>> @@ -35,6 +35,8 @@
>>  #include "st_texture.h"
>>  #include "st_format.h"
>>  #include "st_manager.h"
>> +#include "st_sampler_view.h"
>> +
>>
>>  /**
>>   * Return the base format just like _mesa_base_fbo_format does.
>> diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
>> index daef5a4..177201d 100644
>> --- a/src/mesa/state_tracker/st_cb_texture.c
>> +++ b/src/mesa/state_tracker/st_cb_texture.c
>> @@ -58,6 +58,7 @@
>>  #include "state_tracker/st_texture.h"
>>  #include "state_tracker/st_gen_mipmap.h"
>>  #include "state_tracker/st_atom.h"
>> +#include "state_tracker/st_sampler_view.h"
>>
>>  #include "pipe/p_context.h"
>>  #include "pipe/p_defines.h"
>> diff --git a/src/mesa/state_tracker/st_context.c b/src/mesa/state_tracker/st_context.c
>> index b9dc0c6..174503f 100644
>> --- a/src/mesa/state_tracker/st_context.c
>> +++ b/src/mesa/state_tracker/st_context.c
>> @@ -70,6 +70,7 @@
>>  #include "st_gen_mipmap.h"
>>  #include "st_pbo.h"
>>  #include "st_program.h"
>> +#include "st_sampler_view.h"
>>  #include "st_vdpau.h"
>>  #include "st_texture.h"
>>  #include "pipe/p_context.h"
>> diff --git a/src/mesa/state_tracker/st_sampler_view.c b/src/mesa/state_tracker/st_sampler_view.c
>> new file mode 100644
>> index 0000000..0b07f2a
>> --- /dev/null
>> +++ b/src/mesa/state_tracker/st_sampler_view.c
>> @@ -0,0 +1,487 @@
>> +/*
>> + * Copyright 2016 VMware, Inc.
>> + * All Rights Reserved.
>> + *
>> + * Permission is hereby granted, free of charge, to any person obtaining a
>> + * copy of this software and associated documentation files (the
>> + * "Software"), to deal in the Software without restriction, including
>> + * without limitation the rights to use, copy, modify, merge, publish,
>> + * distribute, sub license, and/or sell copies of the Software, and to
>> + * permit persons to whom the Software is furnished to do so, subject to
>> + * the following conditions:
>> + *
>> + * The above copyright notice and this permission notice (including the
>> + * next paragraph) shall be included in all copies or substantial portions
>> + * of the Software.
>> + *
>> + * 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 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_context.h"
>> +#include "util/u_format.h"
>> +#include "util/u_inlines.h"
>> +
>> +#include "main/context.h"
>> +#include "main/macros.h"
>> +#include "main/mtypes.h"
>> +#include "main/teximage.h"
>> +#include "main/texobj.h"
>> +#include "program/prog_instruction.h"
>> +
>> +#include "st_context.h"
>> +#include "st_sampler_view.h"
>> +#include "st_texture.h"
>> +#include "st_format.h"
>> +#include "st_cb_texture.h"
>> +
>> +
>> +/**
>> + * Try to find a matching sampler view for the given context.
>> + * If none is found an empty slot is initialized with a
>> + * template and returned instead.
>> + */
>> +struct pipe_sampler_view **
>> +st_texture_get_sampler_view(struct st_context *st,
>> +                            struct st_texture_object *stObj)
>> +{
>> +   struct pipe_sampler_view **free = NULL;
>> +   GLuint i;
>> +
>> +   for (i = 0; i < stObj->num_sampler_views; ++i) {
>> +      struct pipe_sampler_view **sv = &stObj->sampler_views[i];
>> +      /* Is the array entry used ? */
>> +      if (*sv) {
>> +         /* check if the context matches */
>> +         if ((*sv)->context == st->pipe) {
>> +            return sv;
>> +         }
>> +      } else {
>> +         /* Found a free slot, remember that */
>> +         free = sv;
>> +      }
>> +   }
>> +
>> +   /* Couldn't find a slot for our context, create a new one */
>> +
>> +   if (!free) {
>> +      /* Haven't even found a free one, resize the array */
>> +      unsigned new_size = (stObj->num_sampler_views + 1) *
>> +         sizeof(struct pipe_sampler_view *);
>> +      stObj->sampler_views = realloc(stObj->sampler_views, new_size);
>> +      free = &stObj->sampler_views[stObj->num_sampler_views++];
>> +      *free = NULL;
>> +   }
>> +
>> +   assert(*free == NULL);
>> +
>> +   return free;
>> +}
>> +
>> +
>> +/**
>> + * For the given texture object, release any sampler views which belong
>> + * to the calling context.
>> + */
>> +void
>> +st_texture_release_sampler_view(struct st_context *st,
>> +                                struct st_texture_object *stObj)
>> +{
>> +   GLuint i;
>> +
>> +   for (i = 0; i < stObj->num_sampler_views; ++i) {
>> +      struct pipe_sampler_view **sv = &stObj->sampler_views[i];
>> +
>> +      if (*sv && (*sv)->context == st->pipe) {
>> +         pipe_sampler_view_reference(sv, NULL);
>> +         break;
>> +      }
>> +   }
>> +}
>> +
>> +
>> +/**
>> + * Release all sampler views attached to the given texture object, regardless
>> + * of the context.
>> + */
>> +void
>> +st_texture_release_all_sampler_views(struct st_context *st,
>> +                                     struct st_texture_object *stObj)
>> +{
>> +   GLuint i;
>> +
>> +   /* XXX This should use sampler_views[i]->pipe, not st->pipe */
>> +   for (i = 0; i < stObj->num_sampler_views; ++i)
>> +      pipe_sampler_view_release(st->pipe, &stObj->sampler_views[i]);
>> +}
>> +
>> +
>> +void
>> +st_texture_free_sampler_views(struct st_texture_object *stObj)
>> +{
>> +   free(stObj->sampler_views);
>> +   stObj->sampler_views = NULL;
>> +   stObj->num_sampler_views = 0;
>> +}
>> +
>> +
>> +/**
>> + * Return swizzle1(swizzle2)
>> + */
>> +static unsigned
>> +swizzle_swizzle(unsigned swizzle1, unsigned swizzle2)
>> +{
>> +   unsigned i, swz[4];
>> +
>> +   if (swizzle1 == SWIZZLE_XYZW) {
>> +      /* identity swizzle, no change to swizzle2 */
>> +      return swizzle2;
>> +   }
>> +
>> +   for (i = 0; i < 4; i++) {
>> +      unsigned s = GET_SWZ(swizzle1, i);
>> +      switch (s) {
>> +      case SWIZZLE_X:
>> +      case SWIZZLE_Y:
>> +      case SWIZZLE_Z:
>> +      case SWIZZLE_W:
>> +         swz[i] = GET_SWZ(swizzle2, s);
>> +         break;
>> +      case SWIZZLE_ZERO:
>> +         swz[i] = SWIZZLE_ZERO;
>> +         break;
>> +      case SWIZZLE_ONE:
>> +         swz[i] = SWIZZLE_ONE;
>> +         break;
>> +      default:
>> +         assert(!"Bad swizzle term");
>> +         swz[i] = SWIZZLE_X;
>> +      }
>> +   }
>> +
>> +   return MAKE_SWIZZLE4(swz[0], swz[1], swz[2], swz[3]);
>> +}
>> +
>> +
>> +/**
>> + * Given a user-specified texture base format, the actual gallium texture
>> + * format and the current GL_DEPTH_MODE, return a texture swizzle.
>> + *
>> + * Consider the case where the user requests a GL_RGB internal texture
>> + * format the driver actually uses an RGBA format.  The A component should
>> + * be ignored and sampling from the texture should always return (r,g,b,1).
>> + * But if we rendered to the texture we might have written A values != 1.
>> + * By sampling the texture with a ".xyz1" swizzle we'll get the expected A=1.
>> + * This function computes the texture swizzle needed to get the expected
>> + * values.
>> + *
>> + * In the case of depth textures, the GL_DEPTH_MODE state determines the
>> + * texture swizzle.
>> + *
>> + * This result must be composed with the user-specified swizzle to get
>> + * the final swizzle.
>> + */
>> +static unsigned
>> +compute_texture_format_swizzle(GLenum baseFormat, GLenum depthMode,
>> +                               enum pipe_format actualFormat,
>> +                               unsigned glsl_version)
>> +{
>> +   switch (baseFormat) {
>> +   case GL_RGBA:
>> +      return SWIZZLE_XYZW;
>> +   case GL_RGB:
>> +      if (util_format_has_alpha(actualFormat))
>> +         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_ONE);
>> +      else
>> +         return SWIZZLE_XYZW;
>> +   case GL_RG:
>> +      if (util_format_get_nr_components(actualFormat) > 2)
>> +         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_ZERO, SWIZZLE_ONE);
>> +      else
>> +         return SWIZZLE_XYZW;
>> +   case GL_RED:
>> +      if (util_format_get_nr_components(actualFormat) > 1)
>> +         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_ZERO,
>> +                              SWIZZLE_ZERO, SWIZZLE_ONE);
>> +      else
>> +         return SWIZZLE_XYZW;
>> +   case GL_ALPHA:
>> +      if (util_format_get_nr_components(actualFormat) > 1)
>> +         return MAKE_SWIZZLE4(SWIZZLE_ZERO, SWIZZLE_ZERO,
>> +                              SWIZZLE_ZERO, SWIZZLE_W);
>> +      else
>> +         return SWIZZLE_XYZW;
>> +   case GL_LUMINANCE:
>> +      if (util_format_get_nr_components(actualFormat) > 1)
>> +         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_X, SWIZZLE_X, SWIZZLE_ONE);
>> +      else
>> +         return SWIZZLE_XYZW;
>> +   case GL_LUMINANCE_ALPHA:
>> +      if (util_format_get_nr_components(actualFormat) > 2)
>> +         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_X, SWIZZLE_X, SWIZZLE_W);
>> +      else
>> +         return SWIZZLE_XYZW;
>> +   case GL_INTENSITY:
>> +      if (util_format_get_nr_components(actualFormat) > 1)
>> +         return SWIZZLE_XXXX;
>> +      else
>> +         return SWIZZLE_XYZW;
>> +   case GL_STENCIL_INDEX:
>> +   case GL_DEPTH_STENCIL:
>> +   case GL_DEPTH_COMPONENT:
>> +      /* Now examine the depth mode */
>> +      switch (depthMode) {
>> +      case GL_LUMINANCE:
>> +         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_X, SWIZZLE_X, SWIZZLE_ONE);
>> +      case GL_INTENSITY:
>> +         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_X, SWIZZLE_X, SWIZZLE_X);
>> +      case GL_ALPHA:
>> +         /* The texture(sampler*Shadow) functions from GLSL 1.30 ignore
>> +          * the depth mode and return float, while older shadow* functions
>> +          * and ARB_fp instructions return vec4 according to the depth mode.
>> +          *
>> +          * The problem with the GLSL 1.30 functions is that GL_ALPHA forces
>> +          * them to return 0, breaking them completely.
>> +          *
>> +          * A proper fix would increase code complexity and that's not worth
>> +          * it for a rarely used feature such as the GL_ALPHA depth mode
>> +          * in GL3. Therefore, change GL_ALPHA to GL_INTENSITY for all
>> +          * shaders that use GLSL 1.30 or later.
>> +          *
>> +          * BTW, it's required that sampler views are updated when
>> +          * shaders change (check_sampler_swizzle takes care of that).
>> +          */
>> +         if (glsl_version && glsl_version >= 130)
>> +            return SWIZZLE_XXXX;
>> +         else
>> +            return MAKE_SWIZZLE4(SWIZZLE_ZERO, SWIZZLE_ZERO,
>> +                                 SWIZZLE_ZERO, SWIZZLE_X);
>> +      case GL_RED:
>> +         return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_ZERO,
>> +                              SWIZZLE_ZERO, SWIZZLE_ONE);
>> +      default:
>> +         assert(!"Unexpected depthMode");
>> +         return SWIZZLE_XYZW;
>> +      }
>> +   default:
>> +      assert(!"Unexpected baseFormat");
>> +      return SWIZZLE_XYZW;
>> +   }
>> +}
>> +
>> +
>> +static unsigned
>> +get_texture_format_swizzle(const struct st_context *st,
>> +                           const struct st_texture_object *stObj,
>> +                           unsigned glsl_version)
>> +{
>> +   GLenum baseFormat = _mesa_texture_base_format(&stObj->base);
>> +   unsigned tex_swizzle;
>> +
>> +   if (baseFormat != GL_NONE) {
>> +      GLenum depth_mode = stObj->base.DepthMode;
>> +      /* In ES 3.0, DEPTH_TEXTURE_MODE is expected to be GL_RED for textures
>> +       * with depth component data specified with a sized internal format.
>> +       */
>> +      if (_mesa_is_gles3(st->ctx) &&
>> +          util_format_is_depth_or_stencil(stObj->pt->format)) {
>> +         const struct gl_texture_image *firstImage =
>> +            _mesa_base_tex_image(&stObj->base);
>> +         if (firstImage->InternalFormat != GL_DEPTH_COMPONENT &&
>> +             firstImage->InternalFormat != GL_DEPTH_STENCIL &&
>> +             firstImage->InternalFormat != GL_STENCIL_INDEX)
>> +            depth_mode = GL_RED;
>> +      }
>> +      tex_swizzle = compute_texture_format_swizzle(baseFormat,
>> +                                                   depth_mode,
>> +                                                   stObj->pt->format,
>> +                                                   glsl_version);
>> +   }
>> +   else {
>> +      tex_swizzle = SWIZZLE_XYZW;
>> +   }
>> +
>> +   /* Combine the texture format swizzle with user's swizzle */
>> +   return swizzle_swizzle(stObj->base._Swizzle, tex_swizzle);
>> +}
>> +
>> +
>> +/**
>> + * Return TRUE if the texture's sampler view swizzle is not equal to
>> + * the texture's swizzle.
>> + *
>> + * \param stObj  the st texture object,
>> + */
>> +static boolean
>> +check_sampler_swizzle(const struct st_context *st,
>> +                      const struct st_texture_object *stObj,
>> +                     const struct pipe_sampler_view *sv, unsigned glsl_version)
>> +{
>> +   unsigned swizzle = get_texture_format_swizzle(st, stObj, glsl_version);
>> +
>> +   return ((sv->swizzle_r != GET_SWZ(swizzle, 0)) ||
>> +           (sv->swizzle_g != GET_SWZ(swizzle, 1)) ||
>> +           (sv->swizzle_b != GET_SWZ(swizzle, 2)) ||
>> +           (sv->swizzle_a != GET_SWZ(swizzle, 3)));
>> +}
>> +
>> +
>> +static unsigned
>> +last_level(const struct st_texture_object *stObj)
>> +{
>> +   unsigned ret = MIN2(stObj->base.MinLevel + stObj->base._MaxLevel,
>> +                       stObj->pt->last_level);
>> +   if (stObj->base.Immutable)
>> +      ret = MIN2(ret, stObj->base.MinLevel + stObj->base.NumLevels - 1);
>> +   return ret;
>> +}
>> +
>> +
>> +static unsigned
>> +last_layer(const struct st_texture_object *stObj)
>> +{
>> +   if (stObj->base.Immutable && stObj->pt->array_size > 1)
>> +      return MIN2(stObj->base.MinLayer + stObj->base.NumLayers - 1,
>> +                  stObj->pt->array_size - 1);
>> +   return stObj->pt->array_size - 1;
>> +}
>> +
>> +
>> +/**
>> + * Determine the format for the texture sampler view.
>> + */
>> +static enum pipe_format
>> +get_sampler_view_format(struct st_context *st,
>> +                        const struct st_texture_object *stObj,
>> +                        const struct gl_sampler_object *samp)
>> +{
>> +   enum pipe_format format;
>> +
>> +   if (stObj->base.Target == GL_TEXTURE_BUFFER) {
>> +      format =
>> +         st_mesa_format_to_pipe_format(st, stObj->base._BufferObjectFormat);
>> +   }
>> +   else {
>> +      format =
>> +         stObj->surface_based ? stObj->surface_format : stObj->pt->format;
>> +
>> +      if (util_format_is_depth_and_stencil(format)) {
>> +         if (stObj->base.StencilSampling) {
>> +            format = util_format_stencil_only(format);
>> +         }
>> +         else {
>> +            GLenum baseFormat = _mesa_texture_base_format(&stObj->base);
>> +            if (baseFormat == GL_STENCIL_INDEX) {
>> +               format = util_format_stencil_only(format);
>> +            }
>> +         }
>> +      }
>> +      else {
>> +         /* If sRGB decoding is off, use the linear format */
>> +         if (samp->sRGBDecode == GL_SKIP_DECODE_EXT) {
>> +            format = util_format_linear(format);
>> +         }
>> +
>> +         /* Use R8_UNORM for video formats */
>> +         switch (format) {
>> +         case PIPE_FORMAT_NV12:
>> +         case PIPE_FORMAT_IYUV:
>> +            format = PIPE_FORMAT_R8_UNORM;
>> +            break;
>> +         default:
>> +            break;
>> +         }
>> +      }
>> +   }
>> +
>> +   return format;
>> +}
>> +
>> +
>> +static struct pipe_sampler_view *
>> +st_create_texture_sampler_view_from_stobj(struct st_context *st,
>> +                                         struct st_texture_object *stObj,
>> +                                         enum pipe_format format,
>> +                                          unsigned glsl_version)
>> +{
>> +   struct pipe_sampler_view templ;
>> +   unsigned swizzle = get_texture_format_swizzle(st, stObj, glsl_version);
>> +
>> +   u_sampler_view_default_template(&templ, stObj->pt, format);
>> +
>> +   if (stObj->pt->target == PIPE_BUFFER) {
>> +      unsigned base, size;
>> +
>> +      base = stObj->base.BufferOffset;
>> +      if (base >= stObj->pt->width0)
>> +         return NULL;
>> +      size = MIN2(stObj->pt->width0 - base, (unsigned)stObj->base.BufferSize);
>> +      if (!size)
>> +         return NULL;
>> +
>> +      templ.u.buf.offset = base;
>> +      templ.u.buf.size = size;
>> +   } else {
>> +      templ.u.tex.first_level = stObj->base.MinLevel + stObj->base.BaseLevel;
>> +      templ.u.tex.last_level = last_level(stObj);
>> +      assert(templ.u.tex.first_level <= templ.u.tex.last_level);
>> +      templ.u.tex.first_layer = stObj->base.MinLayer;
>> +      templ.u.tex.last_layer = last_layer(stObj);
>> +      assert(templ.u.tex.first_layer <= templ.u.tex.last_layer);
>> +      templ.target = gl_target_to_pipe(stObj->base.Target);
>> +   }
>> +
>> +   templ.swizzle_r = GET_SWZ(swizzle, 0);
>> +   templ.swizzle_g = GET_SWZ(swizzle, 1);
>> +   templ.swizzle_b = GET_SWZ(swizzle, 2);
>> +   templ.swizzle_a = GET_SWZ(swizzle, 3);
>> +
>> +   return st->pipe->create_sampler_view(st->pipe, stObj->pt, &templ);
>> +}
>> +
>> +
>> +struct pipe_sampler_view *
>> +st_get_texture_sampler_view_from_stobj(struct st_context *st,
>> +                                       struct st_texture_object *stObj,
>> +                                       const struct gl_sampler_object *samp,
>> +                                       unsigned glsl_version)
>> +{
>> +   struct pipe_sampler_view **sv;
>> +
>> +   assert(stObj->pt);
>> +   if (!stObj || !stObj->pt) {
>> +      return NULL;
>> +   }
>> +
>> +   sv = st_texture_get_sampler_view(st, stObj);
>> +
>> +   if (*sv) {
>> +      /* Debug check: make sure that the sampler view's parameters are
>> +       * what they're supposed to be.
>> +       */
>> +      MAYBE_UNUSED struct pipe_sampler_view *view = *sv;
>> +      assert(!check_sampler_swizzle(st, stObj, view, glsl_version));
>> +      assert(get_sampler_view_format(st, stObj, samp) == view->format);
>> +      assert(gl_target_to_pipe(stObj->base.Target) == view->target);
>> +      assert(stObj->base.MinLevel + stObj->base.BaseLevel ==
>> +             view->u.tex.first_level);
>> +      assert(last_level(stObj) == view->u.tex.last_level);
>> +      assert(stObj->base.MinLayer == view->u.tex.first_layer);
>> +      assert(last_layer(stObj) == view->u.tex.last_layer);
>> +   }
>> +   else {
>> +      /* create new sampler view */
>> +      enum pipe_format format = get_sampler_view_format(st, stObj, samp);
>> +
>> +      *sv = st_create_texture_sampler_view_from_stobj(st, stObj,
>> +                                                      format, glsl_version);
>> +
>> +   }
>> +
>> +   return *sv;
>> +}
>> diff --git a/src/mesa/state_tracker/st_sampler_view.h b/src/mesa/state_tracker/st_sampler_view.h
>> new file mode 100644
>> index 0000000..d4c38bc
>> --- /dev/null
>> +++ b/src/mesa/state_tracker/st_sampler_view.h
>> @@ -0,0 +1,83 @@
>> +/*
>> + * Copyright 2016 VMware, Inc.
>> + * All Rights Reserved.
>> + *
>> + * Permission is hereby granted, free of charge, to any person obtaining a
>> + * copy of this software and associated documentation files (the
>> + * "Software"), to deal in the Software without restriction, including
>> + * without limitation the rights to use, copy, modify, merge, publish,
>> + * distribute, sub license, and/or sell copies of the Software, and to
>> + * permit persons to whom the Software is furnished to do so, subject to
>> + * the following conditions:
>> + *
>> + * The above copyright notice and this permission notice (including the
>> + * next paragraph) shall be included in all copies or substantial portions
>> + * of the Software.
>> + *
>> + * 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 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.
>> + */
>> +
>> +
>> +#ifndef ST_SAMPLER_VIEW_H
>> +#define ST_SAMPLER_VIEW_H
>> +
>> +#include "pipe/p_compiler.h"
>> +#include "pipe/p_context.h"
>> +#include "pipe/p_state.h"
>> +#include "util/u_sampler.h"
>> +
>> +struct st_texture_object;
>> +
>> +
>> +static inline struct pipe_sampler_view *
>> +st_create_texture_sampler_view_format(struct pipe_context *pipe,
>> +                                      struct pipe_resource *texture,
>> +                                      enum pipe_format format)
>> +{
>> +   struct pipe_sampler_view templ;
>> +
>> +   u_sampler_view_default_template(&templ, texture, format);
>> +
>> +   return pipe->create_sampler_view(pipe, texture, &templ);
>> +}
>> +
>> +
>> +static inline struct pipe_sampler_view *
>> +st_create_texture_sampler_view(struct pipe_context *pipe,
>> +                               struct pipe_resource *texture)
>> +{
>> +   return st_create_texture_sampler_view_format(pipe, texture,
>> +                                                texture->format);
>> +}
>> +
>> +
>> +extern struct pipe_sampler_view **
>> +st_texture_get_sampler_view(struct st_context *st,
>> +                            struct st_texture_object *stObj);
>> +
>> +extern void
>> +st_texture_release_sampler_view(struct st_context *st,
>> +                                struct st_texture_object *stObj);
>> +
>> +extern void
>> +st_texture_release_all_sampler_views(struct st_context *st,
>> +                                     struct st_texture_object *stObj);
>> +
>> +void
>> +st_texture_free_sampler_views(struct st_texture_object *stObj);
>> +
>> +
>> +struct pipe_sampler_view *
>> +st_get_texture_sampler_view_from_stobj(struct st_context *st,
>> +                                       struct st_texture_object *stObj,
>> +                                       const struct gl_sampler_object *samp,
>> +                                       unsigned glsl_version);
>> +
>> +
>> +#endif /* ST_SAMPLER_VIEW_H */
>> diff --git a/src/mesa/state_tracker/st_texture.c b/src/mesa/state_tracker/st_texture.c
>> index 32e5b84..a2c36ac 100644
>> --- a/src/mesa/state_tracker/st_texture.c
>> +++ b/src/mesa/state_tracker/st_texture.c
>> @@ -418,96 +418,3 @@ st_create_color_map_texture(struct gl_context *ctx)
>>                            texSize, texSize, 1, 1, 0, PIPE_BIND_SAMPLER_VIEW);
>>     return pt;
>>  }
>> -
>> -/**
>> - * Try to find a matching sampler view for the given context.
>> - * If none is found an empty slot is initialized with a
>> - * template and returned instead.
>> - */
>> -struct pipe_sampler_view **
>> -st_texture_get_sampler_view(struct st_context *st,
>> -                            struct st_texture_object *stObj)
>> -{
>> -   struct pipe_sampler_view **free = NULL;
>> -   GLuint i;
>> -
>> -   for (i = 0; i < stObj->num_sampler_views; ++i) {
>> -      struct pipe_sampler_view **sv = &stObj->sampler_views[i];
>> -      /* Is the array entry used ? */
>> -      if (*sv) {
>> -         /* check if the context matches */
>> -         if ((*sv)->context == st->pipe) {
>> -            return sv;
>> -         }
>> -      } else {
>> -         /* Found a free slot, remember that */
>> -         free = sv;
>> -      }
>> -   }
>> -
>> -   /* Couldn't find a slot for our context, create a new one */
>> -
>> -   if (!free) {
>> -      /* Haven't even found a free one, resize the array */
>> -      GLuint old_size = stObj->num_sampler_views * sizeof(void *);
>> -      GLuint new_size = old_size + sizeof(void *);
>> -      stObj->sampler_views = REALLOC(stObj->sampler_views, old_size, new_size);
>> -      free = &stObj->sampler_views[stObj->num_sampler_views++];
>> -      *free = NULL;
>> -   }
>> -
>> -   assert(*free == NULL);
>> -
>> -   return free;
>> -}
>> -
>> -
>> -/**
>> - * For the given texture object, release any sampler views which belong
>> - * to the calling context.
>> - */
>> -void
>> -st_texture_release_sampler_view(struct st_context *st,
>> -                                struct st_texture_object *stObj)
>> -{
>> -   GLuint i;
>> -
>> -   for (i = 0; i < stObj->num_sampler_views; ++i) {
>> -      struct pipe_sampler_view **sv = &stObj->sampler_views[i];
>> -
>> -      if (*sv && (*sv)->context == st->pipe) {
>> -         pipe_sampler_view_reference(sv, NULL);
>> -         break;
>> -      }
>> -   }
>> -}
>> -
>> -
>> -/**
>> - * Release all sampler views attached to the given texture object, regardless
>> - * of the context.
>> - */
>> -void
>> -st_texture_release_all_sampler_views(struct st_context *st,
>> -                                     struct st_texture_object *stObj)
>> -{
>> -   GLuint i;
>> -
>> -   /* XXX This should use sampler_views[i]->pipe, not st->pipe */
>> -   for (i = 0; i < stObj->num_sampler_views; ++i)
>> -      pipe_sampler_view_release(st->pipe, &stObj->sampler_views[i]);
>> -}
>> -
>> -
>> -void
>> -st_texture_free_sampler_views(struct st_texture_object *stObj)
>> -{
>> -   /* NOTE:
>> -    * We use FREE() here to match REALLOC() above.  Both come from
>> -    * u_memory.h, not imports.h.  If we mis-match MALLOC/FREE from
>> -    * those two headers we can trash the heap.
>> -    */
>> -   FREE(stObj->sampler_views);
>> -   stObj->sampler_views = NULL;
>> -   stObj->num_sampler_views = 0;
>> -}
>> diff --git a/src/mesa/state_tracker/st_texture.h b/src/mesa/state_tracker/st_texture.h
>> index 9c9a05b..730843a 100644
>> --- a/src/mesa/state_tracker/st_texture.h
>> +++ b/src/mesa/state_tracker/st_texture.h
>> @@ -155,26 +155,6 @@ st_get_stobj_resource(struct st_texture_object *stObj)
>>  }
>>
>>
>> -static inline struct pipe_sampler_view *
>> -st_create_texture_sampler_view_format(struct pipe_context *pipe,
>> -                                      struct pipe_resource *texture,
>> -                                      enum pipe_format format)
>> -{
>> -   struct pipe_sampler_view templ;
>> -
>> -   u_sampler_view_default_template(&templ, texture, format);
>> -
>> -   return pipe->create_sampler_view(pipe, texture, &templ);
>> -}
>> -
>> -static inline struct pipe_sampler_view *
>> -st_create_texture_sampler_view(struct pipe_context *pipe,
>> -                               struct pipe_resource *texture)
>> -{
>> -   return st_create_texture_sampler_view_format(pipe, texture,
>> -                                                texture->format);
>> -}
>> -
>>  static inline struct st_texture_object *
>>  st_get_texture_object(struct gl_context *ctx,
>>                        const struct gl_program *prog,
>> @@ -261,20 +241,6 @@ st_texture_image_copy(struct pipe_context *pipe,
>>  extern struct pipe_resource *
>>  st_create_color_map_texture(struct gl_context *ctx);
>>
>> -extern struct pipe_sampler_view **
>> -st_texture_get_sampler_view(struct st_context *st,
>> -                            struct st_texture_object *stObj);
>> -
>> -extern void
>> -st_texture_release_sampler_view(struct st_context *st,
>> -                                struct st_texture_object *stObj);
>> -
>> -extern void
>> -st_texture_release_all_sampler_views(struct st_context *st,
>> -                                     struct st_texture_object *stObj);
>> -
>> -void
>> -st_texture_free_sampler_views(struct st_texture_object *stObj);
>>
>>  bool
>>  st_etc_fallback(struct st_context *st, struct gl_texture_image *texImage);
>> --
>> 1.9.1
>>
>> _______________________________________________
>> mesa-dev mailing list
>> mesa-dev at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/mesa-dev


More information about the mesa-dev mailing list