src/gallium/drivers/svga/svga_state_tss.c - platform/external/mesa3d - Git at Google

 /**********************************************************
  * Copyright 2008-2009 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, sublicense, 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 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
  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  * 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 "util/u_inlines.h"
 #include "util/u_memory.h"
 #include "pipe/p_defines.h"
 #include "util/u_math.h"

 #include "svga_sampler_view.h"
 #include "svga_winsys.h"
 #include "svga_context.h"
 #include "svga_state.h"
 #include "svga_cmd.h"


 void svga_cleanup_tss_binding(struct svga_context *svga)
 {
    int i;
    unsigned count = MAX2( svga->curr.num_sampler_views,
                           svga->state.hw_draw.num_views );

    for (i = 0; i < count; i++) {
       struct svga_hw_view_state *view = &svga->state.hw_draw.views[i];

       svga_sampler_view_reference(&view->v, NULL);
       pipe_sampler_view_reference( &svga->curr.sampler_views[i], NULL );
       pipe_resource_reference( &view->texture, NULL );

       view->dirty = 1;
    }
 }


 struct bind_queue {
    struct {
       unsigned unit;
       struct svga_hw_view_state *view;
    } bind[PIPE_MAX_SAMPLERS];

    unsigned bind_count;
 };


 static enum pipe_error
 update_tss_binding(struct svga_context *svga,
                    unsigned dirty )
 {
    boolean reemit = svga->rebind.texture_samplers;
    unsigned i;
    unsigned count = MAX2( svga->curr.num_sampler_views,
                           svga->state.hw_draw.num_views );
    unsigned min_lod;
    unsigned max_lod;

    struct bind_queue queue;

    queue.bind_count = 0;

    for (i = 0; i < count; i++) {
       const struct svga_sampler_state *s = svga->curr.sampler[i];
       struct svga_hw_view_state *view = &svga->state.hw_draw.views[i];
       struct pipe_resource *texture = NULL;
       struct pipe_sampler_view *sv = svga->curr.sampler_views[i];

       /* get min max lod */
       if (sv) {
          min_lod = MAX2(0, (s->view_min_lod + sv->u.tex.first_level));
          max_lod = MIN2(s->view_max_lod + sv->u.tex.first_level,
                         sv->texture->last_level);
          texture = sv->texture;
       } else {
          min_lod = 0;
          max_lod = 0;
       }

       if (view->texture != texture ||
           view->min_lod != min_lod ||
           view->max_lod != max_lod) {

          svga_sampler_view_reference(&view->v, NULL);
          pipe_resource_reference( &view->texture, texture );

          view->dirty = TRUE;
          view->min_lod = min_lod;
          view->max_lod = max_lod;

          if (texture)
             view->v = svga_get_tex_sampler_view(&svga->pipe,
                                                 texture,
                                                 min_lod,
                                                 max_lod);
       }

       /*
        * We need to reemit non-null texture bindings, even when they are not
        * dirty, to ensure that the resources are paged in.
        */

       if (view->dirty ||
           (reemit && view->v)) {
          queue.bind[queue.bind_count].unit = i;
          queue.bind[queue.bind_count].view = view;
          queue.bind_count++;
       }
       if (!view->dirty && view->v) {
          svga_validate_sampler_view(svga, view->v);
       }
    }

    svga->state.hw_draw.num_views = svga->curr.num_sampler_views;

    if (queue.bind_count) {
       SVGA3dTextureState *ts;

       if (SVGA3D_BeginSetTextureState( svga->swc,
                                        &ts,
                                        queue.bind_count ) != PIPE_OK)
          goto fail;

       for (i = 0; i < queue.bind_count; i++) {
          struct svga_winsys_surface *handle;

          ts[i].stage = queue.bind[i].unit;
          ts[i].name = SVGA3D_TS_BIND_TEXTURE;

          if (queue.bind[i].view->v) {
             handle = queue.bind[i].view->v->handle;
          }
          else {
             handle = NULL;
          }
          svga->swc->surface_relocation(svga->swc,
                                        &ts[i].value,
                                        handle,
                                        SVGA_RELOC_READ);

          queue.bind[i].view->dirty = FALSE;
       }

       SVGA_FIFOCommitAll( svga->swc );
    }

    svga->rebind.texture_samplers = FALSE;

    return 0;

 fail:
    return PIPE_ERROR_OUT_OF_MEMORY;
 }


 /*
  * Rebind textures.
  *
  * Similar to update_tss_binding, but without any state checking/update.
  *
  * Called at the beginning of every new command buffer to ensure that
  * non-dirty textures are properly paged-in.
  */
 enum pipe_error
 svga_reemit_tss_bindings(struct svga_context *svga)
 {
    unsigned i;
    enum pipe_error ret;
    struct bind_queue queue;

    assert(svga->rebind.texture_samplers);

    queue.bind_count = 0;

    for (i = 0; i < svga->state.hw_draw.num_views; i++) {
       struct svga_hw_view_state *view = &svga->state.hw_draw.views[i];

       if (view->v) {
          queue.bind[queue.bind_count].unit = i;
          queue.bind[queue.bind_count].view = view;
          queue.bind_count++;
       }
    }

    if (queue.bind_count) {
       SVGA3dTextureState *ts;

       ret = SVGA3D_BeginSetTextureState(svga->swc,
                                         &ts,
                                         queue.bind_count);
       if (ret != PIPE_OK) {
          return ret;
       }

       for (i = 0; i < queue.bind_count; i++) {
          struct svga_winsys_surface *handle;

          ts[i].stage = queue.bind[i].unit;
          ts[i].name = SVGA3D_TS_BIND_TEXTURE;

          assert(queue.bind[i].view->v);
          handle = queue.bind[i].view->v->handle;
          svga->swc->surface_relocation(svga->swc,
                                        &ts[i].value,
                                        handle,
                                        SVGA_RELOC_READ);
       }

       SVGA_FIFOCommitAll(svga->swc);
    }

    svga->rebind.texture_samplers = FALSE;

    return PIPE_OK;
 }


 struct svga_tracked_state svga_hw_tss_binding = {
    "texture binding emit",
    SVGA_NEW_TEXTURE_BINDING |
    SVGA_NEW_SAMPLER,
    update_tss_binding
 };


 /***********************************************************************
  */

 struct ts_queue {
    unsigned ts_count;
    SVGA3dTextureState ts[PIPE_MAX_SAMPLERS*SVGA3D_TS_MAX];
 };


 #define EMIT_TS(svga, unit, val, token, fail)                           \
 do {                                                                    \
    assert(unit < Elements(svga->state.hw_draw.ts));                     \
    assert(SVGA3D_TS_##token < Elements(svga->state.hw_draw.ts[unit]));  \
    if (svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] != val) {        \
       svga_queue_tss( &queue, unit, SVGA3D_TS_##token, val );           \
       svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] = val;            \
    }                                                                    \
 } while (0)

 #define EMIT_TS_FLOAT(svga, unit, fvalue, token, fail)                  \
 do {                                                                    \
    unsigned val = fui(fvalue);                                          \
    assert(unit < Elements(svga->state.hw_draw.ts));                     \
    assert(SVGA3D_TS_##token < Elements(svga->state.hw_draw.ts[unit]));  \
    if (svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] != val) {        \
       svga_queue_tss( &queue, unit, SVGA3D_TS_##token, val );           \
       svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] = val;            \
    }                                                                    \
 } while (0)


 static INLINE void
 svga_queue_tss( struct ts_queue *q,
                 unsigned unit,
                 unsigned tss,
                 unsigned value )
 {
    assert(q->ts_count < sizeof(q->ts)/sizeof(q->ts[0]));
    q->ts[q->ts_count].stage = unit;
    q->ts[q->ts_count].name = tss;
    q->ts[q->ts_count].value = value;
    q->ts_count++;
 }


 static enum pipe_error
 update_tss(struct svga_context *svga,
            unsigned dirty )
 {
    unsigned i;
    struct ts_queue queue;

    queue.ts_count = 0;
    for (i = 0; i < svga->curr.num_samplers; i++) {
       if (svga->curr.sampler[i]) {
          const struct svga_sampler_state *curr = svga->curr.sampler[i];

          EMIT_TS(svga, i, curr->mipfilter, MIPFILTER, fail);
          EMIT_TS(svga, i, curr->min_lod, TEXTURE_MIPMAP_LEVEL, fail);
          EMIT_TS(svga, i, curr->magfilter, MAGFILTER, fail);
          EMIT_TS(svga, i, curr->minfilter, MINFILTER, fail);
          EMIT_TS(svga, i, curr->aniso_level, TEXTURE_ANISOTROPIC_LEVEL, fail);
          EMIT_TS_FLOAT(svga, i, curr->lod_bias, TEXTURE_LOD_BIAS, fail);
          EMIT_TS(svga, i, curr->addressu, ADDRESSU, fail);
          EMIT_TS(svga, i, curr->addressw, ADDRESSW, fail);
          EMIT_TS(svga, i, curr->bordercolor, BORDERCOLOR, fail);
          // TEXCOORDINDEX -- hopefully not needed

          if (svga->curr.tex_flags.flag_1d & (1 << i)) {
             EMIT_TS(svga, i, SVGA3D_TEX_ADDRESS_WRAP, ADDRESSV, fail);
          }
          else
             EMIT_TS(svga, i, curr->addressv, ADDRESSV, fail);

          if (svga->curr.tex_flags.flag_srgb & (1 << i))
             EMIT_TS_FLOAT(svga, i, 2.2f, GAMMA, fail);
          else
             EMIT_TS_FLOAT(svga, i, 1.0f, GAMMA, fail);

       }
    }

    if (queue.ts_count) {
       SVGA3dTextureState *ts;

       if (SVGA3D_BeginSetTextureState( svga->swc,
                                        &ts,
                                        queue.ts_count ) != PIPE_OK)
          goto fail;

       memcpy( ts,
               queue.ts,
               queue.ts_count * sizeof queue.ts[0]);

       SVGA_FIFOCommitAll( svga->swc );
    }

    return PIPE_OK;

 fail:
    /* XXX: need to poison cached hardware state on failure to ensure
     * dirty state gets re-emitted.  Fix this by re-instating partial
     * FIFOCommit command and only updating cached hw state once the
     * initial allocation has succeeded.
     */
    memset(svga->state.hw_draw.ts, 0xcd, sizeof(svga->state.hw_draw.ts));

    return PIPE_ERROR_OUT_OF_MEMORY;
 }


 struct svga_tracked_state svga_hw_tss = {
    "texture state emit",
    (SVGA_NEW_SAMPLER |
     SVGA_NEW_TEXTURE_FLAGS),
    update_tss
 };
	/**********************************************************
	* Copyright 2008-2009 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, sublicense, 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 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
	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	* 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 "util/u_inlines.h"
	#include "util/u_memory.h"
	#include "pipe/p_defines.h"
	#include "util/u_math.h"

	#include "svga_sampler_view.h"
	#include "svga_winsys.h"
	#include "svga_context.h"
	#include "svga_state.h"
	#include "svga_cmd.h"


	void svga_cleanup_tss_binding(struct svga_context *svga)
	{
	int i;
	unsigned count = MAX2( svga->curr.num_sampler_views,
	svga->state.hw_draw.num_views );

	for (i = 0; i < count; i++) {
	struct svga_hw_view_state *view = &svga->state.hw_draw.views[i];

	svga_sampler_view_reference(&view->v, NULL);
	pipe_sampler_view_reference( &svga->curr.sampler_views[i], NULL );
	pipe_resource_reference( &view->texture, NULL );

	view->dirty = 1;
	}
	}


	struct bind_queue {
	struct {
	unsigned unit;
	struct svga_hw_view_state *view;
	} bind[PIPE_MAX_SAMPLERS];

	unsigned bind_count;
	};


	static enum pipe_error
	update_tss_binding(struct svga_context *svga,
	unsigned dirty )
	{
	boolean reemit = svga->rebind.texture_samplers;
	unsigned i;
	unsigned count = MAX2( svga->curr.num_sampler_views,
	svga->state.hw_draw.num_views );
	unsigned min_lod;
	unsigned max_lod;

	struct bind_queue queue;

	queue.bind_count = 0;

	for (i = 0; i < count; i++) {
	const struct svga_sampler_state *s = svga->curr.sampler[i];
	struct svga_hw_view_state *view = &svga->state.hw_draw.views[i];
	struct pipe_resource *texture = NULL;
	struct pipe_sampler_view *sv = svga->curr.sampler_views[i];

	/* get min max lod */
	if (sv) {
	min_lod = MAX2(0, (s->view_min_lod + sv->u.tex.first_level));
	max_lod = MIN2(s->view_max_lod + sv->u.tex.first_level,
	sv->texture->last_level);
	texture = sv->texture;
	} else {
	min_lod = 0;
	max_lod = 0;
	}

	if (view->texture != texture \|\|
	view->min_lod != min_lod \|\|
	view->max_lod != max_lod) {

	svga_sampler_view_reference(&view->v, NULL);
	pipe_resource_reference( &view->texture, texture );

	view->dirty = TRUE;
	view->min_lod = min_lod;
	view->max_lod = max_lod;

	if (texture)
	view->v = svga_get_tex_sampler_view(&svga->pipe,
	texture,
	min_lod,
	max_lod);
	}

	/*
	* We need to reemit non-null texture bindings, even when they are not
	* dirty, to ensure that the resources are paged in.
	*/

	if (view->dirty \|\|
	(reemit && view->v)) {
	queue.bind[queue.bind_count].unit = i;
	queue.bind[queue.bind_count].view = view;
	queue.bind_count++;
	}
	if (!view->dirty && view->v) {
	svga_validate_sampler_view(svga, view->v);
	}
	}

	svga->state.hw_draw.num_views = svga->curr.num_sampler_views;

	if (queue.bind_count) {
	SVGA3dTextureState *ts;

	if (SVGA3D_BeginSetTextureState( svga->swc,
	&ts,
	queue.bind_count ) != PIPE_OK)
	goto fail;

	for (i = 0; i < queue.bind_count; i++) {
	struct svga_winsys_surface *handle;

	ts[i].stage = queue.bind[i].unit;
	ts[i].name = SVGA3D_TS_BIND_TEXTURE;

	if (queue.bind[i].view->v) {
	handle = queue.bind[i].view->v->handle;
	}
	else {
	handle = NULL;
	}
	svga->swc->surface_relocation(svga->swc,
	&ts[i].value,
	handle,
	SVGA_RELOC_READ);

	queue.bind[i].view->dirty = FALSE;
	}

	SVGA_FIFOCommitAll( svga->swc );
	}

	svga->rebind.texture_samplers = FALSE;

	return 0;

	fail:
	return PIPE_ERROR_OUT_OF_MEMORY;
	}


	/*
	* Rebind textures.
	*
	* Similar to update_tss_binding, but without any state checking/update.
	*
	* Called at the beginning of every new command buffer to ensure that
	* non-dirty textures are properly paged-in.
	*/
	enum pipe_error
	svga_reemit_tss_bindings(struct svga_context *svga)
	{
	unsigned i;
	enum pipe_error ret;
	struct bind_queue queue;

	assert(svga->rebind.texture_samplers);

	queue.bind_count = 0;

	for (i = 0; i < svga->state.hw_draw.num_views; i++) {
	struct svga_hw_view_state *view = &svga->state.hw_draw.views[i];

	if (view->v) {
	queue.bind[queue.bind_count].unit = i;
	queue.bind[queue.bind_count].view = view;
	queue.bind_count++;
	}
	}

	if (queue.bind_count) {
	SVGA3dTextureState *ts;

	ret = SVGA3D_BeginSetTextureState(svga->swc,
	&ts,
	queue.bind_count);
	if (ret != PIPE_OK) {
	return ret;
	}

	for (i = 0; i < queue.bind_count; i++) {
	struct svga_winsys_surface *handle;

	ts[i].stage = queue.bind[i].unit;
	ts[i].name = SVGA3D_TS_BIND_TEXTURE;

	assert(queue.bind[i].view->v);
	handle = queue.bind[i].view->v->handle;
	svga->swc->surface_relocation(svga->swc,
	&ts[i].value,
	handle,
	SVGA_RELOC_READ);
	}

	SVGA_FIFOCommitAll(svga->swc);
	}

	svga->rebind.texture_samplers = FALSE;

	return PIPE_OK;
	}


	struct svga_tracked_state svga_hw_tss_binding = {
	"texture binding emit",
	SVGA_NEW_TEXTURE_BINDING \|
	SVGA_NEW_SAMPLER,
	update_tss_binding
	};


	/***********************************************************************
	*/

	struct ts_queue {
	unsigned ts_count;
	SVGA3dTextureState ts[PIPE_MAX_SAMPLERS*SVGA3D_TS_MAX];
	};


	#define EMIT_TS(svga, unit, val, token, fail) \
	do { \
	assert(unit < Elements(svga->state.hw_draw.ts)); \
	assert(SVGA3D_TS_##token < Elements(svga->state.hw_draw.ts[unit])); \
	if (svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] != val) { \
	svga_queue_tss( &queue, unit, SVGA3D_TS_##token, val ); \
	svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] = val; \
	} \
	} while (0)

	#define EMIT_TS_FLOAT(svga, unit, fvalue, token, fail) \
	do { \
	unsigned val = fui(fvalue); \
	assert(unit < Elements(svga->state.hw_draw.ts)); \
	assert(SVGA3D_TS_##token < Elements(svga->state.hw_draw.ts[unit])); \
	if (svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] != val) { \
	svga_queue_tss( &queue, unit, SVGA3D_TS_##token, val ); \
	svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] = val; \
	} \
	} while (0)


	static INLINE void
	svga_queue_tss( struct ts_queue *q,
	unsigned unit,
	unsigned tss,
	unsigned value )
	{
	assert(q->ts_count < sizeof(q->ts)/sizeof(q->ts[0]));
	q->ts[q->ts_count].stage = unit;
	q->ts[q->ts_count].name = tss;
	q->ts[q->ts_count].value = value;
	q->ts_count++;
	}


	static enum pipe_error
	update_tss(struct svga_context *svga,
	unsigned dirty )
	{
	unsigned i;
	struct ts_queue queue;

	queue.ts_count = 0;
	for (i = 0; i < svga->curr.num_samplers; i++) {
	if (svga->curr.sampler[i]) {
	const struct svga_sampler_state *curr = svga->curr.sampler[i];

	EMIT_TS(svga, i, curr->mipfilter, MIPFILTER, fail);
	EMIT_TS(svga, i, curr->min_lod, TEXTURE_MIPMAP_LEVEL, fail);
	EMIT_TS(svga, i, curr->magfilter, MAGFILTER, fail);
	EMIT_TS(svga, i, curr->minfilter, MINFILTER, fail);
	EMIT_TS(svga, i, curr->aniso_level, TEXTURE_ANISOTROPIC_LEVEL, fail);
	EMIT_TS_FLOAT(svga, i, curr->lod_bias, TEXTURE_LOD_BIAS, fail);
	EMIT_TS(svga, i, curr->addressu, ADDRESSU, fail);
	EMIT_TS(svga, i, curr->addressw, ADDRESSW, fail);
	EMIT_TS(svga, i, curr->bordercolor, BORDERCOLOR, fail);
	// TEXCOORDINDEX -- hopefully not needed

	if (svga->curr.tex_flags.flag_1d & (1 << i)) {
	EMIT_TS(svga, i, SVGA3D_TEX_ADDRESS_WRAP, ADDRESSV, fail);
	}
	else
	EMIT_TS(svga, i, curr->addressv, ADDRESSV, fail);

	if (svga->curr.tex_flags.flag_srgb & (1 << i))
	EMIT_TS_FLOAT(svga, i, 2.2f, GAMMA, fail);
	else
	EMIT_TS_FLOAT(svga, i, 1.0f, GAMMA, fail);

	}
	}

	if (queue.ts_count) {
	SVGA3dTextureState *ts;

	if (SVGA3D_BeginSetTextureState( svga->swc,
	&ts,
	queue.ts_count ) != PIPE_OK)
	goto fail;

	memcpy( ts,
	queue.ts,
	queue.ts_count * sizeof queue.ts[0]);

	SVGA_FIFOCommitAll( svga->swc );
	}

	return PIPE_OK;

	fail:
	/* XXX: need to poison cached hardware state on failure to ensure
	* dirty state gets re-emitted. Fix this by re-instating partial
	* FIFOCommit command and only updating cached hw state once the
	* initial allocation has succeeded.
	*/
	memset(svga->state.hw_draw.ts, 0xcd, sizeof(svga->state.hw_draw.ts));

	return PIPE_ERROR_OUT_OF_MEMORY;
	}


	struct svga_tracked_state svga_hw_tss = {
	"texture state emit",
	(SVGA_NEW_SAMPLER \|
	SVGA_NEW_TEXTURE_FLAGS),
	update_tss
	};