[mesa.git] / src / gallium / drivers / r600 / r600_texture.c

/*
 * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
 *
 * 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
 * on 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
 * THE AUTHOR(S) AND/OR THEIR 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.
 *
 * Authors:
 *      Jerome Glisse
 *      Corbin Simpson
 */
#include <errno.h>
#include <pipe/p_screen.h>
#include <util/u_format.h>
#include <util/u_math.h>
#include <util/u_inlines.h>
#include <util/u_memory.h>
#include "state_tracker/drm_driver.h"
#include "r600_screen.h"
#include "r600_context.h"
#include "r600_resource.h"
#include "r600_state_inlines.h"
#include "r600d.h"

extern struct u_resource_vtbl r600_texture_vtbl;

/* Copy from a tiled texture to a detiled one. */
static void r600_copy_from_tiled_texture(struct pipe_context *ctx, struct r600_transfer *rtransfer)
{
        struct pipe_transfer *transfer = (struct pipe_transfer*)rtransfer;
        struct pipe_resource *texture = transfer->resource;
        struct pipe_subresource subdst;

        subdst.face = 0;
        subdst.level = 0;
        ctx->resource_copy_region(ctx, rtransfer->linear_texture,
                                subdst, 0, 0, 0, texture, transfer->sr,
                                transfer->box.x, transfer->box.y, transfer->box.z,
                                transfer->box.width, transfer->box.height);
}

static unsigned long r600_texture_get_offset(struct r600_resource_texture *rtex,
                                        unsigned level, unsigned zslice,
                                        unsigned face)
{
        unsigned long offset = rtex->offset[level];

        switch (rtex->resource.base.b.target) {
        case PIPE_TEXTURE_3D:
                assert(face == 0);
                return offset + zslice * rtex->layer_size[level];
        case PIPE_TEXTURE_CUBE:
                assert(zslice == 0);
                return offset + face * rtex->layer_size[level];
        default:
                assert(zslice == 0 && face == 0);
                return offset;
        }
}

static void r600_setup_miptree(struct r600_resource_texture *rtex)
{
        struct pipe_resource *ptex = &rtex->resource.base.b;
        unsigned long w, h, pitch, size, layer_size, i, offset;

        rtex->bpt = util_format_get_blocksize(ptex->format);
        for (i = 0, offset = 0; i <= ptex->last_level; i++) {
                w = u_minify(ptex->width0, i);
                h = u_minify(ptex->height0, i);
                h = util_next_power_of_two(h);
                pitch = util_format_get_stride(ptex->format, align(w, 64));
                pitch = align(pitch, 256);
                layer_size = pitch * h;
                if (ptex->target == PIPE_TEXTURE_CUBE)
                        size = layer_size * 6;
                else
                        size = layer_size * u_minify(ptex->depth0, i);
                rtex->offset[i] = offset;
                rtex->layer_size[i] = layer_size;
                rtex->pitch[i] = pitch;
                rtex->width[i] = w;
                rtex->height[i] = h;
                offset += size;
        }
        rtex->size = offset;
}

struct pipe_resource *r600_texture_create(struct pipe_screen *screen,
                                                const struct pipe_resource *templ)
{
        struct r600_resource_texture *rtex;
        struct r600_resource *resource;
        struct radeon *radeon = (struct radeon *)screen->winsys;

        rtex = CALLOC_STRUCT(r600_resource_texture);
        if (!rtex) {
                return NULL;
        }
        resource = &rtex->resource;
        resource->base.b = *templ;
        resource->base.vtbl = &r600_texture_vtbl;
        pipe_reference_init(&resource->base.b.reference, 1);
        resource->base.b.screen = screen;
        r600_setup_miptree(rtex);

        /* FIXME alignment 4096 enought ? too much ? */
        resource->domain = r600_domain_from_usage(resource->base.b.bind);
        resource->bo = radeon_bo(radeon, 0, rtex->size, 4096, NULL);
        if (resource->bo == NULL) {
                FREE(rtex);
                return NULL;
        }
        return &resource->base.b;
}

static void r600_texture_destroy_state(struct pipe_resource *ptexture)
{
        struct r600_resource_texture *rtexture = (struct r600_resource_texture*)ptexture;

        for (int i = 0; i < PIPE_MAX_TEXTURE_LEVELS; i++) {
                radeon_state_fini(&rtexture->scissor[i]);
                radeon_state_fini(&rtexture->db[i]);
                for (int j = 0; j < 8; j++) {
                        radeon_state_fini(&rtexture->cb[j][i]);
                }
        }
}

static void r600_texture_destroy(struct pipe_screen *screen,
                                 struct pipe_resource *ptex)
{
        struct r600_resource_texture *rtex = (struct r600_resource_texture*)ptex;
        struct r600_resource *resource = &rtex->resource;
        struct radeon *radeon = (struct radeon *)screen->winsys;

        if (resource->bo) {
                radeon_bo_decref(radeon, resource->bo);
        }
        if (rtex->uncompressed) {
                radeon_bo_decref(radeon, rtex->uncompressed);
        }
        r600_texture_destroy_state(ptex);
        FREE(rtex);
}

static struct pipe_surface *r600_get_tex_surface(struct pipe_screen *screen,
                                                struct pipe_resource *texture,
                                                unsigned face, unsigned level,
                                                unsigned zslice, unsigned flags)
{
        struct r600_resource_texture *rtex = (struct r600_resource_texture*)texture;
        struct pipe_surface *surface = CALLOC_STRUCT(pipe_surface);
        unsigned long offset;

        if (surface == NULL)
                return NULL;
        offset = r600_texture_get_offset(rtex, level, zslice, face);
        pipe_reference_init(&surface->reference, 1);
        pipe_resource_reference(&surface->texture, texture);
        surface->format = texture->format;
        surface->width = u_minify(texture->width0, level);
        surface->height = u_minify(texture->height0, level);
        surface->offset = offset;
        surface->usage = flags;
        surface->zslice = zslice;
        surface->texture = texture;
        surface->face = face;
        surface->level = level;
        return surface;
}

static void r600_tex_surface_destroy(struct pipe_surface *surface)
{
        pipe_resource_reference(&surface->texture, NULL);
        FREE(surface);
}

struct pipe_resource *r600_texture_from_handle(struct pipe_screen *screen,
                                               const struct pipe_resource *templ,
                                               struct winsys_handle *whandle)
{
        struct radeon *rw = (struct radeon*)screen->winsys;
        struct r600_resource_texture *rtex;
        struct r600_resource *resource;
        struct radeon_bo *bo = NULL;

        /* Support only 2D textures without mipmaps */
        if ((templ->target != PIPE_TEXTURE_2D && templ->target != PIPE_TEXTURE_RECT) ||
              templ->depth0 != 1 || templ->last_level != 0)
                return NULL;

        rtex = CALLOC_STRUCT(r600_resource_texture);
        if (rtex == NULL)
                return NULL;

        bo = radeon_bo(rw, whandle->handle, 0, 0, NULL);
        if (bo == NULL) {
                FREE(rtex);
                return NULL;
        }

        resource = &rtex->resource;
        resource->base.b = *templ;
        resource->base.vtbl = &r600_texture_vtbl;
        pipe_reference_init(&resource->base.b.reference, 1);
        resource->base.b.screen = screen;
        resource->bo = bo;
        rtex->depth = 0;
        rtex->pitch_override = whandle->stride;
        rtex->bpt = util_format_get_blocksize(templ->format);
        rtex->pitch[0] = whandle->stride;
        rtex->width[0] = templ->width0;
        rtex->height[0] = templ->height0;
        rtex->offset[0] = 0;
        rtex->size = align(rtex->pitch[0] * templ->height0, 64);

        return &resource->base.b;
}

static unsigned int r600_texture_is_referenced(struct pipe_context *context,
                                                struct pipe_resource *texture,
                                                unsigned face, unsigned level)
{
        /* FIXME */
        return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
}

struct pipe_transfer* r600_texture_get_transfer(struct pipe_context *ctx,
                                                struct pipe_resource *texture,
                                                struct pipe_subresource sr,
                                                unsigned usage,
                                                const struct pipe_box *box)
{
        struct r600_resource_texture *rtex = (struct r600_resource_texture*)texture;
        struct pipe_resource resource;
        struct r600_transfer *trans;

        trans = CALLOC_STRUCT(r600_transfer);
        if (trans == NULL)
                return NULL;
        pipe_resource_reference(&trans->transfer.resource, texture);
        trans->transfer.sr = sr;
        trans->transfer.usage = usage;
        trans->transfer.box = *box;
        trans->transfer.stride = rtex->pitch[sr.level];
        trans->offset = r600_texture_get_offset(rtex, sr.level, box->z, sr.face);
        if (rtex->tilled && !rtex->depth) {
                resource.target = PIPE_TEXTURE_2D;
                resource.format = texture->format;
                resource.width0 = box->width;
                resource.height0 = box->height;
                resource.depth0 = 0;
                resource.last_level = 0;
                resource.nr_samples = 0;
                resource.usage = PIPE_USAGE_DYNAMIC;
                resource.bind = 0;
                resource.flags = 0;
                /* For texture reading, the temporary (detiled) texture is used as
                 * a render target when blitting from a tiled texture. */
                if (usage & PIPE_TRANSFER_READ) {
                        resource.bind |= PIPE_BIND_RENDER_TARGET;
                }
                /* For texture writing, the temporary texture is used as a sampler
                 * when blitting into a tiled texture. */
                if (usage & PIPE_TRANSFER_WRITE) {
                        resource.bind |= PIPE_BIND_SAMPLER_VIEW;
                }
                /* Create the temporary texture. */
                trans->linear_texture = ctx->screen->resource_create(ctx->screen, &resource);
                if (trans->linear_texture == NULL) {
                        R600_ERR("failed to create temporary texture to hold untiled copy\n");
                        pipe_resource_reference(&trans->transfer.resource, NULL);
                        FREE(trans);
                        return NULL;
                }
                if (usage & PIPE_TRANSFER_READ) {
                        /* We cannot map a tiled texture directly because the data is
                         * in a different order, therefore we do detiling using a blit. */
                        r600_copy_from_tiled_texture(ctx, trans);
                        /* Always referenced in the blit. */
                        ctx->flush(ctx, 0, NULL);
                }
        }
        return &trans->transfer;
}

void r600_texture_transfer_destroy(struct pipe_context *ctx,
                                   struct pipe_transfer *transfer)
{
        struct r600_transfer *rtransfer = (struct r600_transfer*)transfer;

        if (rtransfer->linear_texture) {
                pipe_resource_reference(&rtransfer->linear_texture, NULL);
        }
        pipe_resource_reference(&transfer->resource, NULL);
        FREE(transfer);
}

void* r600_texture_transfer_map(struct pipe_context *ctx,
                                struct pipe_transfer* transfer)
{
        struct r600_transfer *rtransfer = (struct r600_transfer*)transfer;
        struct radeon_bo *bo;
        enum pipe_format format = transfer->resource->format;
        struct radeon *radeon = (struct radeon *)ctx->screen->winsys;
        struct r600_resource_texture *rtex;
        unsigned long offset = 0;
        char *map;
        int r;

        r600_flush(ctx, 0, NULL);
        if (rtransfer->linear_texture) {
                bo = ((struct r600_resource *)rtransfer->linear_texture)->bo;
        } else {
                rtex = (struct r600_resource_texture*)transfer->resource;
                if (rtex->depth) {
                        r = r600_texture_from_depth(ctx, rtex, transfer->sr.level);
                        if (r) {
                                return NULL;
                        }
                        r600_flush(ctx, 0, NULL);
                        bo = rtex->uncompressed;
                } else {
                        bo = ((struct r600_resource *)transfer->resource)->bo;
                }
                offset = rtransfer->offset +
                        transfer->box.y / util_format_get_blockheight(format) * transfer->stride +
                        transfer->box.x / util_format_get_blockwidth(format) * util_format_get_blocksize(format);
        }
        if (radeon_bo_map(radeon, bo)) {
                return NULL;
        }
        radeon_bo_wait(radeon, bo);

        map = bo->data;
        return map + offset;
}

void r600_texture_transfer_unmap(struct pipe_context *ctx,
                                 struct pipe_transfer* transfer)
{
        struct r600_transfer *rtransfer = (struct r600_transfer*)transfer;
        struct radeon *radeon = (struct radeon *)ctx->screen->winsys;
        struct r600_resource_texture *rtex;
        struct radeon_bo *bo;

        if (rtransfer->linear_texture) {
                bo = ((struct r600_resource *)rtransfer->linear_texture)->bo;
        } else {
                rtex = (struct r600_resource_texture*)transfer->resource;
                if (rtex->depth) {
                        bo = rtex->uncompressed;
                } else {
                        bo = ((struct r600_resource *)transfer->resource)->bo;
                }
        }
        radeon_bo_unmap(radeon, bo);
}

struct u_resource_vtbl r600_texture_vtbl =
{
        u_default_resource_get_handle,  /* get_handle */
        r600_texture_destroy,           /* resource_destroy */
        r600_texture_is_referenced,     /* is_resource_referenced */
        r600_texture_get_transfer,      /* get_transfer */
        r600_texture_transfer_destroy,  /* transfer_destroy */
        r600_texture_transfer_map,      /* transfer_map */
        u_default_transfer_flush_region,/* transfer_flush_region */
        r600_texture_transfer_unmap,    /* transfer_unmap */
        u_default_transfer_inline_write /* transfer_inline_write */
};

void r600_init_screen_texture_functions(struct pipe_screen *screen)
{
        screen->get_tex_surface = r600_get_tex_surface;
        screen->tex_surface_destroy = r600_tex_surface_destroy;
}

static unsigned r600_get_swizzle_combined(const unsigned char *swizzle_format,
                const unsigned char *swizzle_view)
{
        unsigned i;
        unsigned char swizzle[4];
        unsigned result = 0;
        const uint32_t swizzle_shift[4] = {
                16, 19, 22, 25,
        };
        const uint32_t swizzle_bit[4] = {
                0, 1, 2, 3,
        };

        if (swizzle_view) {
                /* Combine two sets of swizzles. */
                for (i = 0; i < 4; i++) {
                        swizzle[i] = swizzle_view[i] <= UTIL_FORMAT_SWIZZLE_W ?
                                swizzle_format[swizzle_view[i]] : swizzle_view[i];
                }
        } else {
                memcpy(swizzle, swizzle_format, 4);
        }

        /* Get swizzle. */
        for (i = 0; i < 4; i++) {
                switch (swizzle[i]) {
                case UTIL_FORMAT_SWIZZLE_Y:
                        result |= swizzle_bit[1] << swizzle_shift[i];
                        break;
                case UTIL_FORMAT_SWIZZLE_Z:
                        result |= swizzle_bit[2] << swizzle_shift[i];
                        break;
                case UTIL_FORMAT_SWIZZLE_W:
                        result |= swizzle_bit[3] << swizzle_shift[i];
                        break;
                case UTIL_FORMAT_SWIZZLE_0:
                        result |= V_038010_SQ_SEL_0 << swizzle_shift[i];
                        break;
                case UTIL_FORMAT_SWIZZLE_1:
                        result |= V_038010_SQ_SEL_1 << swizzle_shift[i];
                        break;
                default: /* UTIL_FORMAT_SWIZZLE_X */
                        result |= swizzle_bit[0] << swizzle_shift[i];
                }
        }
        return result;
}

/* texture format translate */
uint32_t r600_translate_texformat(enum pipe_format format,
                                  const unsigned char *swizzle_view, 
                                  uint32_t *word4_p, uint32_t *yuv_format_p)
{
        uint32_t result = 0, word4 = 0, yuv_format = 0;
        const struct util_format_description *desc;
        boolean uniform = TRUE;
        int i;
        const uint32_t sign_bit[4] = {
                S_038010_FORMAT_COMP_X(V_038010_SQ_FORMAT_COMP_SIGNED),
                S_038010_FORMAT_COMP_Y(V_038010_SQ_FORMAT_COMP_SIGNED),
                S_038010_FORMAT_COMP_Z(V_038010_SQ_FORMAT_COMP_SIGNED),
                S_038010_FORMAT_COMP_W(V_038010_SQ_FORMAT_COMP_SIGNED)
        };
        desc = util_format_description(format);

        word4 |= r600_get_swizzle_combined(desc->swizzle, swizzle_view);

        /* Colorspace (return non-RGB formats directly). */
        switch (desc->colorspace) {
                /* Depth stencil formats */
        case UTIL_FORMAT_COLORSPACE_ZS:
                switch (format) {
                case PIPE_FORMAT_Z16_UNORM:
                        result = V_0280A0_COLOR_16;
                        goto out_word4;
                case PIPE_FORMAT_Z24X8_UNORM:
                        result = V_0280A0_COLOR_8_24;
                        goto out_word4;
                case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
                        result = V_0280A0_COLOR_8_24;
                        goto out_word4;
                default:
                        goto out_unknown;
                }

        case UTIL_FORMAT_COLORSPACE_YUV:
                yuv_format |= (1 << 30);
                switch (format) {
                case PIPE_FORMAT_UYVY:
                case PIPE_FORMAT_YUYV:
                default:
                        break;
                }
                goto out_unknown; /* TODO */
                
        case UTIL_FORMAT_COLORSPACE_SRGB:
                word4 |= S_038010_FORCE_DEGAMMA(1);
                if (format == PIPE_FORMAT_L8A8_SRGB || format == PIPE_FORMAT_L8_SRGB)
                        goto out_unknown; /* fails for some reason - TODO */
                break;

        default:
                break;
        }

        /* S3TC formats. TODO */
        if (desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
                goto out_unknown;
        }


        for (i = 0; i < desc->nr_channels; i++) {       
                if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
                        word4 |= sign_bit[i];
                }
        }

        /* R8G8Bx_SNORM - TODO CxV8U8 */

        /* RGTC - TODO */

        /* See whether the components are of the same size. */
        for (i = 1; i < desc->nr_channels; i++) {
                uniform = uniform && desc->channel[0].size == desc->channel[i].size;
        }
        
        /* Non-uniform formats. */
        if (!uniform) {
                switch(desc->nr_channels) {
                case 3:
                        if (desc->channel[0].size == 5 &&
                            desc->channel[1].size == 6 &&
                            desc->channel[2].size == 5) {
                                result = V_0280A0_COLOR_5_6_5;
                                goto out_word4;
                        }
                        goto out_unknown;
                case 4:
                        if (desc->channel[0].size == 5 &&
                            desc->channel[1].size == 5 &&
                            desc->channel[2].size == 5 &&
                            desc->channel[3].size == 1) {
                                result = V_0280A0_COLOR_1_5_5_5;
                                goto out_word4;
                        }
                        if (desc->channel[0].size == 10 &&
                            desc->channel[1].size == 10 &&
                            desc->channel[2].size == 10 &&
                            desc->channel[3].size == 2) {
                                result = V_0280A0_COLOR_10_10_10_2;
                                goto out_word4;
                        }
                        goto out_unknown;
                }
                goto out_unknown;
        }

        /* uniform formats */
        switch (desc->channel[0].type) {
        case UTIL_FORMAT_TYPE_UNSIGNED:
        case UTIL_FORMAT_TYPE_SIGNED:
                if (!desc->channel[0].normalized &&
                    desc->colorspace != UTIL_FORMAT_COLORSPACE_SRGB) {
                        goto out_unknown;
                }

                switch (desc->channel[0].size) {
                case 4:
                        switch (desc->nr_channels) {
                        case 2:
                                result = V_0280A0_COLOR_4_4;
                                goto out_word4;
                        case 4:
                                result = V_0280A0_COLOR_4_4_4_4;
                                goto out_word4;
                        }
                        goto out_unknown;
                case 8:
                        switch (desc->nr_channels) {
                        case 1:
                                result = V_0280A0_COLOR_8;
                                goto out_word4;
                        case 2:
                                result = V_0280A0_COLOR_8_8;
                                goto out_word4;
                        case 4:
                                result = V_0280A0_COLOR_8_8_8_8;
                                goto out_word4;
                        }
                        goto out_unknown;
                case 16:
                        switch (desc->nr_channels) {
                        case 1:
                                result = V_0280A0_COLOR_16;
                                goto out_word4;
                        case 2:
                                result = V_0280A0_COLOR_16_16;
                                goto out_word4;
                        case 4:
                                result = V_0280A0_COLOR_16_16_16_16;
                                goto out_word4;
                        }
                }
                goto out_unknown;

        case UTIL_FORMAT_TYPE_FLOAT:
                switch (desc->channel[0].size) {
                case 16:
                        switch (desc->nr_channels) {
                        case 1:
                                result = V_0280A0_COLOR_16_FLOAT;
                                goto out_word4;
                        case 2:
                                result = V_0280A0_COLOR_16_16_FLOAT;
                                goto out_word4;
                        case 4:
                                result = V_0280A0_COLOR_16_16_16_16_FLOAT;
                                goto out_word4;
                        }
                        goto out_unknown;
                case 32:
                        switch (desc->nr_channels) {
                        case 1:
                                result = V_0280A0_COLOR_32_FLOAT;
                                goto out_word4;
                        case 2:
                                result = V_0280A0_COLOR_32_32_FLOAT;
                                goto out_word4;
                        case 4:
                                result = V_0280A0_COLOR_32_32_32_32_FLOAT;
                                goto out_word4;
                        }
                }
                
        }
out_word4:
        if (word4_p)
                *word4_p = word4;
        if (yuv_format_p)
                *yuv_format_p = yuv_format;
        return result;
out_unknown:
//      R600_ERR("Unable to handle texformat %d %s\n", format, util_format_name(format));
        return ~0;
}

int r600_texture_from_depth(struct pipe_context *ctx, struct r600_resource_texture *rtexture, unsigned level)
{
        struct r600_screen *rscreen = r600_screen(ctx->screen);
        int r;

        if (!rtexture->depth) {
                /* This shouldn't happen maybe print a warning */
                return 0;
        }
        if (rtexture->uncompressed && !rtexture->dirty) {
                /* Uncompressed bo already in good state */
                return 0;
        }

        /* allocate uncompressed texture */
        if (rtexture->uncompressed == NULL) {
                rtexture->uncompressed = radeon_bo(rscreen->rw, 0, rtexture->size, 4096, NULL);
                if (rtexture->uncompressed == NULL) {
                        return -ENOMEM;
                }
        }

        /* render a rectangle covering whole buffer to uncompress depth */
        r = r600_blit_uncompress_depth(ctx, rtexture, level);
        if (r) {
                return r;
        }

        rtexture->dirty = 0;
        return 0;
}



int r600_texture_scissor(struct pipe_context *ctx, struct r600_resource_texture *rtexture, unsigned level)
{
        struct r600_screen *rscreen = r600_screen(ctx->screen);
        struct r600_context *rctx = r600_context(ctx);

        if (!rtexture->scissor[level].cpm4) {
                rctx->vtbl->texture_state_scissor(rscreen, rtexture, level);
        }
        return 0;
}

int r600_texture_cb(struct pipe_context *ctx, struct r600_resource_texture *rtexture, unsigned cb, unsigned level)
{
        struct r600_screen *rscreen = r600_screen(ctx->screen);
        struct r600_context *rctx = r600_context(ctx);

        if (!rtexture->cb[cb][level].cpm4) {
                rctx->vtbl->texture_state_cb(rscreen, rtexture, cb, level);
        }
        return 0;
}

int r600_texture_db(struct pipe_context *ctx, struct r600_resource_texture *rtexture, unsigned level)
{
        struct r600_screen *rscreen = r600_screen(ctx->screen);
        struct r600_context *rctx = r600_context(ctx);

        if (!rtexture->db[level].cpm4) {
                rctx->vtbl->texture_state_db(rscreen, rtexture, level);
        }
        return 0;
}

int r600_texture_viewport(struct pipe_context *ctx, struct r600_resource_texture *rtexture, unsigned level)
{
        struct r600_screen *rscreen = r600_screen(ctx->screen);
        struct r600_context *rctx = r600_context(ctx);

        if (!rtexture->viewport[level].cpm4) {
                rctx->vtbl->texture_state_viewport(rscreen, rtexture, level);
        }
        return 0;
}