r600g: move lots of state inline helpers to separate header.
[mesa.git] / src / gallium / drivers / r600 / r600_texture.c
index 55cceb6935beec6890f54d9b7e8258ac35f3591a..b6698e3885ce0d74c660efb4aeb4487a9f99138c 100644 (file)
@@ -24,6 +24,7 @@
  *      Jerome Glisse
  *      Corbin Simpson
  */
+#include <errno.h>
 #include <pipe/p_screen.h>
 #include <util/u_format.h>
 #include <util/u_math.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)
@@ -67,6 +84,7 @@ static void r600_setup_miptree(struct r600_screen *rscreen, struct r600_resource
                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;
@@ -75,6 +93,8 @@ static void r600_setup_miptree(struct r600_screen *rscreen, struct r600_resource
                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;
@@ -105,10 +125,22 @@ struct pipe_resource *r600_texture_create(struct pipe_screen *screen,
                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)
 {
@@ -119,6 +151,10 @@ static void r600_texture_destroy(struct pipe_screen *screen,
        if (resource->bo) {
                radeon_bo_decref(rscreen->rw, resource->bo);
        }
+       if (rtex->uncompressed) {
+               radeon_bo_decref(rscreen->rw, rtex->uncompressed);
+       }
+       r600_texture_destroy_state(ptex);
        FREE(rtex);
 }
 
@@ -169,7 +205,8 @@ struct pipe_resource *r600_texture_from_handle(struct pipe_screen *screen,
        }
 
        /* Support only 2D textures without mipmaps */
-       if (templ->target != PIPE_TEXTURE_2D || templ->depth0 != 1 || templ->last_level != 0)
+       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);
@@ -182,9 +219,12 @@ struct pipe_resource *r600_texture_from_handle(struct pipe_screen *screen,
        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);
 
@@ -206,6 +246,7 @@ struct pipe_transfer* r600_texture_get_transfer(struct pipe_context *ctx,
                                                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);
@@ -217,48 +258,117 @@ struct pipe_transfer* r600_texture_get_transfer(struct pipe_context *ctx,
        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 *trans)
+                                  struct pipe_transfer *transfer)
 {
-       pipe_resource_reference(&trans->resource, NULL);
-       FREE(trans);
+       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 r600_resource *resource;
+       struct radeon_bo *bo;
        enum pipe_format format = transfer->resource->format;
        struct r600_screen *rscreen = r600_screen(ctx->screen);
+       struct r600_resource_texture *rtex;
+       unsigned long offset = 0;
        char *map;
+       int r;
 
        r600_flush(ctx, 0, NULL);
-
-       resource = (struct r600_resource *)transfer->resource;
-       if (radeon_bo_map(rscreen->rw, resource->bo)) {
+       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(rscreen->rw, bo)) {
                return NULL;
        }
-       radeon_bo_wait(rscreen->rw, resource->bo);
-
-       map = resource->bo->data;
+       radeon_bo_wait(rscreen->rw, bo);
 
-       return map + 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);
+       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 r600_screen *rscreen = r600_screen(ctx->screen);
-       struct r600_resource *resource;
-
-       resource = (struct r600_resource *)transfer->resource;
-       radeon_bo_unmap(rscreen->rw, resource->bo);
+       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(rscreen->rw, bo);
 }
 
 struct u_resource_vtbl r600_texture_vtbl =
@@ -281,51 +391,51 @@ void r600_init_screen_texture_functions(struct pipe_screen *screen)
 }
 
 static unsigned r600_get_swizzle_combined(const unsigned char *swizzle_format,
-                                         const unsigned char *swizzle_view)
+               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;
+       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 */
@@ -345,19 +455,21 @@ uint32_t r600_translate_texformat(enum pipe_format format,
        };
        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_028010_DEPTH_16;
+                       result = V_0280A0_COLOR_16;
                        goto out_word4;
                case PIPE_FORMAT_Z24X8_UNORM:
-                       result = V_028010_DEPTH_X8_24;
+                       result = V_0280A0_COLOR_8_24;
                        goto out_word4;
                case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
-                       result = V_028010_DEPTH_8_24;
+                       result = V_0280A0_COLOR_8_24;
                        goto out_word4;
                default:
                        goto out_unknown;
@@ -383,8 +495,6 @@ uint32_t r600_translate_texformat(enum pipe_format format,
                break;
        }
        
-       word4 |= r600_get_swizzle_combined(desc->swizzle, swizzle_view);
-
        /* S3TC formats. TODO */
        if (desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
                goto out_unknown;
@@ -520,9 +630,221 @@ out_word4:
                *word4_p = word4;
        if (yuv_format_p)
                *yuv_format_p = yuv_format;
-//     fprintf(stderr,"returning %08x %08x %08x\n", result, word4, 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;
+}
+
+static void r600_texture_state_scissor(struct r600_screen *rscreen,
+                                       struct r600_resource_texture *rtexture,
+                                       unsigned level)
+{
+       struct radeon_state *rstate = &rtexture->scissor[level];
+
+       radeon_state_init(rstate, rscreen->rw, R600_STATE_SCISSOR, 0, 0);
+       /* set states (most default value are 0 and struct already
+        * initialized to 0, thus avoid resetting them)
+        */
+       rstate->states[R600_SCISSOR__PA_SC_CLIPRECT_0_BR] = S_028244_BR_X(rtexture->width[level]) | S_028244_BR_Y(rtexture->height[level]);
+       rstate->states[R600_SCISSOR__PA_SC_CLIPRECT_0_TL] = 0x80000000;
+       rstate->states[R600_SCISSOR__PA_SC_CLIPRECT_1_BR] = S_028244_BR_X(rtexture->width[level]) | S_028244_BR_Y(rtexture->height[level]);
+       rstate->states[R600_SCISSOR__PA_SC_CLIPRECT_1_TL] = 0x80000000;
+       rstate->states[R600_SCISSOR__PA_SC_CLIPRECT_2_BR] = S_028244_BR_X(rtexture->width[level]) | S_028244_BR_Y(rtexture->height[level]);
+       rstate->states[R600_SCISSOR__PA_SC_CLIPRECT_2_TL] = 0x80000000;
+       rstate->states[R600_SCISSOR__PA_SC_CLIPRECT_3_BR] = S_028244_BR_X(rtexture->width[level]) | S_028244_BR_Y(rtexture->height[level]);
+       rstate->states[R600_SCISSOR__PA_SC_CLIPRECT_3_TL] = 0x80000000;
+       rstate->states[R600_SCISSOR__PA_SC_CLIPRECT_RULE] = 0x0000FFFF;
+       rstate->states[R600_SCISSOR__PA_SC_EDGERULE] = 0xAAAAAAAA;
+       rstate->states[R600_SCISSOR__PA_SC_GENERIC_SCISSOR_BR] = S_028244_BR_X(rtexture->width[level]) | S_028244_BR_Y(rtexture->height[level]);
+       rstate->states[R600_SCISSOR__PA_SC_GENERIC_SCISSOR_TL] = 0x80000000;
+       rstate->states[R600_SCISSOR__PA_SC_SCREEN_SCISSOR_BR] = S_028244_BR_X(rtexture->width[level]) | S_028244_BR_Y(rtexture->height[level]);
+       rstate->states[R600_SCISSOR__PA_SC_SCREEN_SCISSOR_TL] = 0x80000000;
+       rstate->states[R600_SCISSOR__PA_SC_VPORT_SCISSOR_0_BR] = S_028244_BR_X(rtexture->width[level]) | S_028244_BR_Y(rtexture->height[level]);
+       rstate->states[R600_SCISSOR__PA_SC_VPORT_SCISSOR_0_TL] = 0x80000000;
+       rstate->states[R600_SCISSOR__PA_SC_WINDOW_SCISSOR_BR] = S_028244_BR_X(rtexture->width[level]) | S_028244_BR_Y(rtexture->height[level]);
+       rstate->states[R600_SCISSOR__PA_SC_WINDOW_SCISSOR_TL] = 0x80000000;
+
+       radeon_state_pm4(rstate);
+}
+
+static void r600_texture_state_cb(struct r600_screen *rscreen, struct r600_resource_texture *rtexture, unsigned cb, unsigned level)
+{
+       struct radeon_state *rstate;
+       struct r600_resource *rbuffer;
+       unsigned pitch, slice;
+       unsigned color_info;
+       unsigned format, swap, ntype;
+       const struct util_format_description *desc;
+
+       rstate = &rtexture->cb[cb][level];
+       radeon_state_init(rstate, rscreen->rw, R600_STATE_CB0 + cb, 0, 0);
+       rbuffer = &rtexture->resource;
+
+       /* set states (most default value are 0 and struct already
+        * initialized to 0, thus avoid resetting them)
+        */
+       pitch = (rtexture->pitch[level] / rtexture->bpt) / 8 - 1;
+       slice = (rtexture->pitch[level] / rtexture->bpt) * rtexture->height[level] / 64 - 1;
+       ntype = 0;
+       desc = util_format_description(rbuffer->base.b.format);
+       if (desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB)
+               ntype = V_0280A0_NUMBER_SRGB;
+       format = r600_translate_colorformat(rtexture->resource.base.b.format);
+       swap = r600_translate_colorswap(rtexture->resource.base.b.format);
+       if (desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS) {
+               rstate->bo[0] = radeon_bo_incref(rscreen->rw, rtexture->uncompressed);
+               rstate->bo[1] = radeon_bo_incref(rscreen->rw, rtexture->uncompressed);
+               rstate->bo[2] = radeon_bo_incref(rscreen->rw, rtexture->uncompressed);
+               rstate->placement[0] = RADEON_GEM_DOMAIN_GTT;
+               rstate->placement[2] = RADEON_GEM_DOMAIN_GTT;
+               rstate->placement[4] = RADEON_GEM_DOMAIN_GTT;
+               rstate->nbo = 3;
+               color_info = 0;
+       } else {
+               rstate->bo[0] = radeon_bo_incref(rscreen->rw, rbuffer->bo);
+               rstate->bo[1] = radeon_bo_incref(rscreen->rw, rbuffer->bo);
+               rstate->bo[2] = radeon_bo_incref(rscreen->rw, rbuffer->bo);
+               rstate->placement[0] = RADEON_GEM_DOMAIN_GTT;
+               rstate->placement[2] = RADEON_GEM_DOMAIN_GTT;
+               rstate->placement[4] = RADEON_GEM_DOMAIN_GTT;
+               rstate->nbo = 3;
+               color_info = S_0280A0_SOURCE_FORMAT(1);
+       }
+       color_info |= S_0280A0_FORMAT(format) |
+               S_0280A0_COMP_SWAP(swap) |
+               S_0280A0_BLEND_CLAMP(1) |
+               S_0280A0_NUMBER_TYPE(ntype);
+       rstate->states[R600_CB0__CB_COLOR0_BASE] = rtexture->offset[level] >> 8;
+       rstate->states[R600_CB0__CB_COLOR0_INFO] = color_info;
+       rstate->states[R600_CB0__CB_COLOR0_SIZE] = S_028060_PITCH_TILE_MAX(pitch) |
+                                               S_028060_SLICE_TILE_MAX(slice);
+
+       radeon_state_pm4(rstate);
+}
+
+static void r600_texture_state_db(struct r600_screen *rscreen, struct r600_resource_texture *rtexture, unsigned level)
+{
+       struct radeon_state *rstate = &rtexture->db[level];
+       struct r600_resource *rbuffer;
+       unsigned pitch, slice, format;
+
+       radeon_state_init(rstate, rscreen->rw, R600_STATE_DB, 0, 0);
+       rbuffer = &rtexture->resource;
+       rtexture->tilled = 1;
+       rtexture->array_mode = 2;
+       rtexture->tile_type = 1;
+       rtexture->depth = 1;
+
+       /* set states (most default value are 0 and struct already
+        * initialized to 0, thus avoid resetting them)
+        */
+       pitch = (rtexture->pitch[level] / rtexture->bpt) / 8 - 1;
+       slice = (rtexture->pitch[level] / rtexture->bpt) * rtexture->height[level] / 64 - 1;
+       format = r600_translate_dbformat(rbuffer->base.b.format);
+       rstate->states[R600_DB__DB_DEPTH_BASE] = rtexture->offset[level] >> 8;
+       rstate->states[R600_DB__DB_DEPTH_INFO] = S_028010_ARRAY_MODE(rtexture->array_mode) |
+                                       S_028010_FORMAT(format);
+       rstate->states[R600_DB__DB_DEPTH_VIEW] = 0x00000000;
+       rstate->states[R600_DB__DB_PREFETCH_LIMIT] = (rtexture->height[level] / 8) -1;
+       rstate->states[R600_DB__DB_DEPTH_SIZE] = S_028000_PITCH_TILE_MAX(pitch) |
+                                               S_028000_SLICE_TILE_MAX(slice);
+       rstate->bo[0] = radeon_bo_incref(rscreen->rw, rbuffer->bo);
+       rstate->placement[0] = RADEON_GEM_DOMAIN_GTT;
+       rstate->nbo = 1;
+
+       radeon_state_pm4(rstate);
+}
+
+int r600_texture_scissor(struct pipe_context *ctx, struct r600_resource_texture *rtexture, unsigned level)
+{
+       struct r600_screen *rscreen = r600_screen(ctx->screen);
+
+       if (!rtexture->scissor[level].cpm4) {
+               r600_texture_state_scissor(rscreen, rtexture, level);
+       }
+       return 0;
+}
+
+static void r600_texture_state_viewport(struct r600_screen *rscreen, struct r600_resource_texture *rtexture, unsigned level)
+{
+       struct radeon_state *rstate = &rtexture->viewport[level];
+
+       radeon_state_init(rstate, rscreen->rw, R600_STATE_VIEWPORT, 0, 0);
+
+       /* set states (most default value are 0 and struct already
+        * initialized to 0, thus avoid resetting them)
+        */
+       rstate->states[R600_VIEWPORT__PA_CL_VPORT_XOFFSET_0] = fui((float)rtexture->width[level]/2.0);
+       rstate->states[R600_VIEWPORT__PA_CL_VPORT_XSCALE_0] = fui((float)rtexture->width[level]/2.0);
+       rstate->states[R600_VIEWPORT__PA_CL_VPORT_YOFFSET_0] = fui((float)rtexture->height[level]/2.0);
+       rstate->states[R600_VIEWPORT__PA_CL_VPORT_YSCALE_0] = fui((float)-rtexture->height[level]/2.0);
+       rstate->states[R600_VIEWPORT__PA_CL_VPORT_ZOFFSET_0] = 0x3F000000;
+       rstate->states[R600_VIEWPORT__PA_CL_VPORT_ZSCALE_0] = 0x3F000000;
+       rstate->states[R600_VIEWPORT__PA_CL_VTE_CNTL] = 0x0000043F;
+       rstate->states[R600_VIEWPORT__PA_SC_VPORT_ZMAX_0] = 0x3F800000;
+
+       radeon_state_pm4(rstate);
+}
+
+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);
+
+       if (!rtexture->cb[cb][level].cpm4) {
+               r600_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);
+
+       if (!rtexture->db[level].cpm4) {
+               r600_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);
+
+       if (!rtexture->viewport[level].cpm4) {
+               r600_texture_state_viewport(rscreen, rtexture, level);
+       }
+       return 0;
+}