import Mesa 11.0.6

1 files changed, 1237 insertions, 0 deletions

diff --git a/lib/mesa/src/gallium/drivers/r300/r300_texture.c b/lib/mesa/src/gallium/drivers/r300/r300_texture.c
new file mode 100644
index 000000000..5e4d50df2
--- /dev/null
+++ b/lib/mesa/src/gallium/drivers/r300/r300_texture.c
@@ -0,0 +1,1237 @@
+/*
+ * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
+ * Copyright 2010 Marek Olšák <maraeo@gmail.com>
+ *
+ * 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. */
+
+/* Always include headers in the reverse order!! ~ M. */
+#include "r300_texture.h"
+
+#include "r300_context.h"
+#include "r300_reg.h"
+#include "r300_texture_desc.h"
+#include "r300_transfer.h"
+#include "r300_screen.h"
+
+#include "util/u_format.h"
+#include "util/u_format_s3tc.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
+#include "util/u_mm.h"
+
+#include "pipe/p_screen.h"
+
+unsigned r300_get_swizzle_combined(const unsigned char *swizzle_format,
+                                   const unsigned char *swizzle_view,
+                                   boolean dxtc_swizzle)
+{
+    unsigned i;
+    unsigned char swizzle[4];
+    unsigned result = 0;
+    const uint32_t swizzle_shift[4] = {
+        R300_TX_FORMAT_R_SHIFT,
+        R300_TX_FORMAT_G_SHIFT,
+        R300_TX_FORMAT_B_SHIFT,
+        R300_TX_FORMAT_A_SHIFT
+    };
+    uint32_t swizzle_bit[4] = {
+        dxtc_swizzle ? R300_TX_FORMAT_Z : R300_TX_FORMAT_X,
+        R300_TX_FORMAT_Y,
+        dxtc_swizzle ? R300_TX_FORMAT_X : R300_TX_FORMAT_Z,
+        R300_TX_FORMAT_W
+    };
+
+    if (swizzle_view) {
+        /* Combine two sets of swizzles. */
+        util_format_compose_swizzles(swizzle_format, swizzle_view, swizzle);
+    } 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 |= R300_TX_FORMAT_ZERO << swizzle_shift[i];
+                break;
+            case UTIL_FORMAT_SWIZZLE_1:
+                result |= R300_TX_FORMAT_ONE << swizzle_shift[i];
+                break;
+            default: /* UTIL_FORMAT_SWIZZLE_X */
+                result |= swizzle_bit[0] << swizzle_shift[i];
+        }
+    }
+    return result;
+}
+
+/* Translate a pipe_format into a useful texture format for sampling.
+ *
+ * Some special formats are translated directly using R300_EASY_TX_FORMAT,
+ * but the majority of them is translated in a generic way, automatically
+ * supporting all the formats hw can support.
+ *
+ * R300_EASY_TX_FORMAT swizzles the texture.
+ * Note the signature of R300_EASY_TX_FORMAT:
+ *   R300_EASY_TX_FORMAT(B, G, R, A, FORMAT);
+ *
+ * The FORMAT specifies how the texture sampler will treat the texture, and
+ * makes available X, Y, Z, W, ZERO, and ONE for swizzling. */
+uint32_t r300_translate_texformat(enum pipe_format format,
+                                  const unsigned char *swizzle_view,
+                                  boolean is_r500,
+                                  boolean dxtc_swizzle)
+{
+    uint32_t result = 0;
+    const struct util_format_description *desc;
+    unsigned i;
+    boolean uniform = TRUE;
+    const uint32_t sign_bit[4] = {
+        R300_TX_FORMAT_SIGNED_W,
+        R300_TX_FORMAT_SIGNED_Z,
+        R300_TX_FORMAT_SIGNED_Y,
+        R300_TX_FORMAT_SIGNED_X,
+    };
+
+    desc = util_format_description(format);
+
+    /* Colorspace (return non-RGB formats directly). */
+    switch (desc->colorspace) {
+        /* Depth stencil formats.
+         * Swizzles are added in r300_merge_textures_and_samplers. */
+        case UTIL_FORMAT_COLORSPACE_ZS:
+            switch (format) {
+                case PIPE_FORMAT_Z16_UNORM:
+                    return R300_TX_FORMAT_X16;
+                case PIPE_FORMAT_X8Z24_UNORM:
+                case PIPE_FORMAT_S8_UINT_Z24_UNORM:
+                    if (is_r500)
+                        return R500_TX_FORMAT_Y8X24;
+                    else
+                        return R300_TX_FORMAT_Y16X16;
+                default:
+                    return ~0; /* Unsupported. */
+            }
+
+        /* YUV formats. */
+        case UTIL_FORMAT_COLORSPACE_YUV:
+            result |= R300_TX_FORMAT_YUV_TO_RGB;
+
+            switch (format) {
+                case PIPE_FORMAT_UYVY:
+                    return R300_EASY_TX_FORMAT(X, Y, Z, ONE, YVYU422) | result;
+                case PIPE_FORMAT_YUYV:
+                    return R300_EASY_TX_FORMAT(X, Y, Z, ONE, VYUY422) | result;
+                default:
+                    return ~0; /* Unsupported/unknown. */
+            }
+
+        /* Add gamma correction. */
+        case UTIL_FORMAT_COLORSPACE_SRGB:
+            result |= R300_TX_FORMAT_GAMMA;
+            break;
+
+        default:
+            switch (format) {
+                /* Same as YUV but without the YUR->RGB conversion. */
+                case PIPE_FORMAT_R8G8_B8G8_UNORM:
+                    return R300_EASY_TX_FORMAT(X, Y, Z, ONE, YVYU422) | result;
+                case PIPE_FORMAT_G8R8_G8B8_UNORM:
+                    return R300_EASY_TX_FORMAT(X, Y, Z, ONE, VYUY422) | result;
+                default:;
+            }
+    }
+
+    /* Add swizzling. */
+    /* The RGTC1_SNORM and LATC1_SNORM swizzle is done in the shader. */
+    if (util_format_is_compressed(format) &&
+        dxtc_swizzle &&
+        format != PIPE_FORMAT_RGTC2_UNORM &&
+        format != PIPE_FORMAT_RGTC2_SNORM &&
+        format != PIPE_FORMAT_LATC2_UNORM &&
+        format != PIPE_FORMAT_LATC2_SNORM &&
+        format != PIPE_FORMAT_RGTC1_UNORM &&
+        format != PIPE_FORMAT_RGTC1_SNORM &&
+        format != PIPE_FORMAT_LATC1_UNORM &&
+        format != PIPE_FORMAT_LATC1_SNORM) {
+        result |= r300_get_swizzle_combined(desc->swizzle, swizzle_view,
+                                            TRUE);
+    } else {
+        result |= r300_get_swizzle_combined(desc->swizzle, swizzle_view,
+                                            FALSE);
+    }
+
+    /* S3TC formats. */
+    if (desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
+        if (!util_format_s3tc_enabled) {
+            return ~0; /* Unsupported. */
+        }
+
+        switch (format) {
+            case PIPE_FORMAT_DXT1_RGB:
+            case PIPE_FORMAT_DXT1_RGBA:
+            case PIPE_FORMAT_DXT1_SRGB:
+            case PIPE_FORMAT_DXT1_SRGBA:
+                return R300_TX_FORMAT_DXT1 | result;
+            case PIPE_FORMAT_DXT3_RGBA:
+            case PIPE_FORMAT_DXT3_SRGBA:
+                return R300_TX_FORMAT_DXT3 | result;
+            case PIPE_FORMAT_DXT5_RGBA:
+            case PIPE_FORMAT_DXT5_SRGBA:
+                return R300_TX_FORMAT_DXT5 | result;
+            default:
+                return ~0; /* Unsupported/unknown. */
+        }
+    }
+
+    /* RGTC formats. */
+    if (desc->layout == UTIL_FORMAT_LAYOUT_RGTC) {
+        switch (format) {
+            case PIPE_FORMAT_RGTC1_SNORM:
+            case PIPE_FORMAT_LATC1_SNORM:
+                result |= sign_bit[0];
+            case PIPE_FORMAT_LATC1_UNORM:
+            case PIPE_FORMAT_RGTC1_UNORM:
+                return R500_TX_FORMAT_ATI1N | result;
+
+            case PIPE_FORMAT_RGTC2_SNORM:
+            case PIPE_FORMAT_LATC2_SNORM:
+                result |= sign_bit[1] | sign_bit[0];
+            case PIPE_FORMAT_RGTC2_UNORM:
+            case PIPE_FORMAT_LATC2_UNORM:
+                return R400_TX_FORMAT_ATI2N | result;
+
+            default:
+                return ~0; /* Unsupported/unknown. */
+        }
+    }
+
+    /* This is truly a special format.
+     * It stores R8G8 and B is computed using sqrt(1 - R^2 - G^2)
+     * in the sampler unit. Also known as D3DFMT_CxV8U8. */
+    if (format == PIPE_FORMAT_R8G8Bx_SNORM) {
+        return R300_TX_FORMAT_CxV8U8 | result;
+    }
+
+    /* Integer and fixed-point 16.16 textures are not supported. */
+    for (i = 0; i < 4; i++) {
+        if (desc->channel[i].type == UTIL_FORMAT_TYPE_FIXED ||
+            ((desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED ||
+              desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED) &&
+             (!desc->channel[i].normalized ||
+              desc->channel[i].pure_integer))) {
+            return ~0; /* Unsupported/unknown. */
+        }
+    }
+
+    /* Add sign. */
+    for (i = 0; i < desc->nr_channels; i++) {
+        if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
+            result |= sign_bit[i];
+        }
+    }
+
+    /* 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) {
+                    return R300_TX_FORMAT_Z5Y6X5 | result;
+                }
+                if (desc->channel[0].size == 5 &&
+                    desc->channel[1].size == 5 &&
+                    desc->channel[2].size == 6) {
+                    return R300_TX_FORMAT_Z6Y5X5 | result;
+                }
+                if (desc->channel[0].size == 2 &&
+                    desc->channel[1].size == 3 &&
+                    desc->channel[2].size == 3) {
+                    return R300_TX_FORMAT_Z3Y3X2 | result;
+                }
+                return ~0; /* Unsupported/unknown. */
+
+            case 4:
+                if (desc->channel[0].size == 5 &&
+                    desc->channel[1].size == 5 &&
+                    desc->channel[2].size == 5 &&
+                    desc->channel[3].size == 1) {
+                    return R300_TX_FORMAT_W1Z5Y5X5 | result;
+                }
+                if (desc->channel[0].size == 10 &&
+                    desc->channel[1].size == 10 &&
+                    desc->channel[2].size == 10 &&
+                    desc->channel[3].size == 2) {
+                    return R300_TX_FORMAT_W2Z10Y10X10 | result;
+                }
+        }
+        return ~0; /* Unsupported/unknown. */
+    }
+
+    /* Find the first non-VOID channel. */
+    for (i = 0; i < 4; i++) {
+        if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
+            break;
+        }
+    }
+
+    if (i == 4)
+        return ~0; /* Unsupported/unknown. */
+
+    /* And finally, uniform formats. */
+    switch (desc->channel[i].type) {
+        case UTIL_FORMAT_TYPE_UNSIGNED:
+        case UTIL_FORMAT_TYPE_SIGNED:
+            if (!desc->channel[i].normalized &&
+                desc->colorspace != UTIL_FORMAT_COLORSPACE_SRGB) {
+                return ~0;
+            }
+
+            switch (desc->channel[i].size) {
+                case 4:
+                    switch (desc->nr_channels) {
+                        case 2:
+                            return R300_TX_FORMAT_Y4X4 | result;
+                        case 4:
+                            return R300_TX_FORMAT_W4Z4Y4X4 | result;
+                    }
+                    return ~0;
+
+                case 8:
+                    switch (desc->nr_channels) {
+                        case 1:
+                            return R300_TX_FORMAT_X8 | result;
+                        case 2:
+                            return R300_TX_FORMAT_Y8X8 | result;
+                        case 4:
+                            return R300_TX_FORMAT_W8Z8Y8X8 | result;
+                    }
+                    return ~0;
+
+                case 16:
+                    switch (desc->nr_channels) {
+                        case 1:
+                            return R300_TX_FORMAT_X16 | result;
+                        case 2:
+                            return R300_TX_FORMAT_Y16X16 | result;
+                        case 4:
+                            return R300_TX_FORMAT_W16Z16Y16X16 | result;
+                    }
+            }
+            return ~0;
+
+        case UTIL_FORMAT_TYPE_FLOAT:
+            switch (desc->channel[i].size) {
+                case 16:
+                    switch (desc->nr_channels) {
+                        case 1:
+                            return R300_TX_FORMAT_16F | result;
+                        case 2:
+                            return R300_TX_FORMAT_16F_16F | result;
+                        case 4:
+                            return R300_TX_FORMAT_16F_16F_16F_16F | result;
+                    }
+                    return ~0;
+
+                case 32:
+                    switch (desc->nr_channels) {
+                        case 1:
+                            return R300_TX_FORMAT_32F | result;
+                        case 2:
+                            return R300_TX_FORMAT_32F_32F | result;
+                        case 4:
+                            return R300_TX_FORMAT_32F_32F_32F_32F | result;
+                    }
+            }
+    }
+
+    return ~0; /* Unsupported/unknown. */
+}
+
+uint32_t r500_tx_format_msb_bit(enum pipe_format format)
+{
+    switch (format) {
+        case PIPE_FORMAT_RGTC1_UNORM:
+        case PIPE_FORMAT_RGTC1_SNORM:
+        case PIPE_FORMAT_LATC1_UNORM:
+        case PIPE_FORMAT_LATC1_SNORM:
+        case PIPE_FORMAT_X8Z24_UNORM:
+        case PIPE_FORMAT_S8_UINT_Z24_UNORM:
+            return R500_TXFORMAT_MSB;
+        default:
+            return 0;
+    }
+}
+
+/* Buffer formats. */
+
+/* Colorbuffer formats. This is the unswizzled format of the RB3D block's
+ * output. For the swizzling of the targets, check the shader's format. */
+static uint32_t r300_translate_colorformat(enum pipe_format format)
+{
+    switch (format) {
+        /* 8-bit buffers. */
+        case PIPE_FORMAT_A8_UNORM:
+        case PIPE_FORMAT_A8_SNORM:
+        case PIPE_FORMAT_I8_UNORM:
+        case PIPE_FORMAT_I8_SNORM:
+        case PIPE_FORMAT_L8_UNORM:
+        case PIPE_FORMAT_L8_SNORM:
+        case PIPE_FORMAT_R8_UNORM:
+        case PIPE_FORMAT_R8_SNORM:
+            return R300_COLOR_FORMAT_I8;
+
+        /* 16-bit buffers. */
+        case PIPE_FORMAT_L8A8_UNORM:
+        case PIPE_FORMAT_L8A8_SNORM:
+        case PIPE_FORMAT_R8G8_UNORM:
+        case PIPE_FORMAT_R8G8_SNORM:
+        case PIPE_FORMAT_R8A8_UNORM:
+        case PIPE_FORMAT_R8A8_SNORM:
+        /* These formats work fine with UV88 if US_OUT_FMT is set correctly. */
+        case PIPE_FORMAT_A16_UNORM:
+        case PIPE_FORMAT_A16_SNORM:
+        case PIPE_FORMAT_A16_FLOAT:
+        case PIPE_FORMAT_L16_UNORM:
+        case PIPE_FORMAT_L16_SNORM:
+        case PIPE_FORMAT_L16_FLOAT:
+        case PIPE_FORMAT_I16_UNORM:
+        case PIPE_FORMAT_I16_SNORM:
+        case PIPE_FORMAT_I16_FLOAT:
+        case PIPE_FORMAT_R16_UNORM:
+        case PIPE_FORMAT_R16_SNORM:
+        case PIPE_FORMAT_R16_FLOAT:
+            return R300_COLOR_FORMAT_UV88;
+
+        case PIPE_FORMAT_B5G6R5_UNORM:
+            return R300_COLOR_FORMAT_RGB565;
+
+        case PIPE_FORMAT_B5G5R5A1_UNORM:
+        case PIPE_FORMAT_B5G5R5X1_UNORM:
+            return R300_COLOR_FORMAT_ARGB1555;
+
+        case PIPE_FORMAT_B4G4R4A4_UNORM:
+        case PIPE_FORMAT_B4G4R4X4_UNORM:
+            return R300_COLOR_FORMAT_ARGB4444;
+
+        /* 32-bit buffers. */
+        case PIPE_FORMAT_B8G8R8A8_UNORM:
+        /*case PIPE_FORMAT_B8G8R8A8_SNORM:*/
+        case PIPE_FORMAT_B8G8R8X8_UNORM:
+        /*case PIPE_FORMAT_B8G8R8X8_SNORM:*/
+        case PIPE_FORMAT_R8G8B8A8_UNORM:
+        case PIPE_FORMAT_R8G8B8A8_SNORM:
+        case PIPE_FORMAT_R8G8B8X8_UNORM:
+        case PIPE_FORMAT_R8G8B8X8_SNORM:
+        /* These formats work fine with ARGB8888 if US_OUT_FMT is set
+         * correctly. */
+        case PIPE_FORMAT_R16G16_UNORM:
+        case PIPE_FORMAT_R16G16_SNORM:
+        case PIPE_FORMAT_R16G16_FLOAT:
+        case PIPE_FORMAT_L16A16_UNORM:
+        case PIPE_FORMAT_L16A16_SNORM:
+        case PIPE_FORMAT_L16A16_FLOAT:
+        case PIPE_FORMAT_R16A16_UNORM:
+        case PIPE_FORMAT_R16A16_SNORM:
+        case PIPE_FORMAT_R16A16_FLOAT:
+        case PIPE_FORMAT_A32_FLOAT:
+        case PIPE_FORMAT_L32_FLOAT:
+        case PIPE_FORMAT_I32_FLOAT:
+        case PIPE_FORMAT_R32_FLOAT:
+            return R300_COLOR_FORMAT_ARGB8888;
+
+        case PIPE_FORMAT_R10G10B10A2_UNORM:
+        case PIPE_FORMAT_R10G10B10X2_SNORM:
+        case PIPE_FORMAT_B10G10R10A2_UNORM:
+        case PIPE_FORMAT_B10G10R10X2_UNORM:
+            return R500_COLOR_FORMAT_ARGB2101010;  /* R5xx-only? */
+
+        /* 64-bit buffers. */
+        case PIPE_FORMAT_R16G16B16A16_UNORM:
+        case PIPE_FORMAT_R16G16B16A16_SNORM:
+        case PIPE_FORMAT_R16G16B16A16_FLOAT:
+        case PIPE_FORMAT_R16G16B16X16_UNORM:
+        case PIPE_FORMAT_R16G16B16X16_SNORM:
+        case PIPE_FORMAT_R16G16B16X16_FLOAT:
+        /* These formats work fine with ARGB16161616 if US_OUT_FMT is set
+         * correctly. */
+        case PIPE_FORMAT_R32G32_FLOAT:
+        case PIPE_FORMAT_L32A32_FLOAT:
+        case PIPE_FORMAT_R32A32_FLOAT:
+            return R300_COLOR_FORMAT_ARGB16161616;
+
+        /* 128-bit buffers. */
+        case PIPE_FORMAT_R32G32B32A32_FLOAT:
+        case PIPE_FORMAT_R32G32B32X32_FLOAT:
+            return R300_COLOR_FORMAT_ARGB32323232;
+
+        /* YUV buffers. */
+        case PIPE_FORMAT_UYVY:
+            return R300_COLOR_FORMAT_YVYU;
+        case PIPE_FORMAT_YUYV:
+            return R300_COLOR_FORMAT_VYUY;
+        default:
+            return ~0; /* Unsupported. */
+    }
+}
+
+/* Depthbuffer and stencilbuffer. Thankfully, we only support two flavors. */
+static uint32_t r300_translate_zsformat(enum pipe_format format)
+{
+    switch (format) {
+        /* 16-bit depth, no stencil */
+        case PIPE_FORMAT_Z16_UNORM:
+            return R300_DEPTHFORMAT_16BIT_INT_Z;
+        /* 24-bit depth, ignored stencil */
+        case PIPE_FORMAT_X8Z24_UNORM:
+        /* 24-bit depth, 8-bit stencil */
+        case PIPE_FORMAT_S8_UINT_Z24_UNORM:
+            return R300_DEPTHFORMAT_24BIT_INT_Z_8BIT_STENCIL;
+        default:
+            return ~0; /* Unsupported. */
+    }
+}
+
+/* Shader output formats. This is essentially the swizzle from the shader
+ * to the RB3D block.
+ *
+ * Note that formats are stored from C3 to C0. */
+static uint32_t r300_translate_out_fmt(enum pipe_format format)
+{
+    uint32_t modifier = 0;
+    unsigned i;
+    const struct util_format_description *desc;
+    boolean uniform_sign;
+
+    desc = util_format_description(format);
+
+    /* Find the first non-VOID channel. */
+    for (i = 0; i < 4; i++) {
+        if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
+            break;
+        }
+    }
+
+    if (i == 4)
+        return ~0; /* Unsupported/unknown. */
+
+    /* Specifies how the shader output is written to the fog unit. */
+    switch (desc->channel[i].type) {
+    case UTIL_FORMAT_TYPE_FLOAT:
+        switch (desc->channel[i].size) {
+        case 32:
+            switch (desc->nr_channels) {
+            case 1:
+                modifier |= R300_US_OUT_FMT_C_32_FP;
+                break;
+            case 2:
+                modifier |= R300_US_OUT_FMT_C2_32_FP;
+                break;
+            case 4:
+                modifier |= R300_US_OUT_FMT_C4_32_FP;
+                break;
+            }
+            break;
+
+        case 16:
+            switch (desc->nr_channels) {
+            case 1:
+                modifier |= R300_US_OUT_FMT_C_16_FP;
+                break;
+            case 2:
+                modifier |= R300_US_OUT_FMT_C2_16_FP;
+                break;
+            case 4:
+                modifier |= R300_US_OUT_FMT_C4_16_FP;
+                break;
+            }
+            break;
+        }
+        break;
+
+    default:
+        switch (desc->channel[i].size) {
+        case 16:
+            switch (desc->nr_channels) {
+            case 1:
+                modifier |= R300_US_OUT_FMT_C_16;
+                break;
+            case 2:
+                modifier |= R300_US_OUT_FMT_C2_16;
+                break;
+            case 4:
+                modifier |= R300_US_OUT_FMT_C4_16;
+                break;
+            }
+            break;
+
+        case 10:
+            modifier |= R300_US_OUT_FMT_C4_10;
+            break;
+
+        default:
+            /* C4_8 seems to be used for the formats whose pixel size
+             * is <= 32 bits. */
+            modifier |= R300_US_OUT_FMT_C4_8;
+            break;
+        }
+    }
+
+    /* Add sign. */
+    uniform_sign = TRUE;
+    for (i = 0; i < desc->nr_channels; i++)
+        if (desc->channel[i].type != UTIL_FORMAT_TYPE_SIGNED)
+            uniform_sign = FALSE;
+
+    if (uniform_sign)
+        modifier |= R300_OUT_SIGN(0xf);
+
+    /* Add swizzles and return. */
+    switch (format) {
+        /*** Special cases (non-standard channel mapping) ***/
+
+        /* X8
+         * COLORFORMAT_I8 stores the Z component (C2). */
+        case PIPE_FORMAT_A8_UNORM:
+        case PIPE_FORMAT_A8_SNORM:
+            return modifier | R300_C2_SEL_A;
+        case PIPE_FORMAT_I8_UNORM:
+        case PIPE_FORMAT_I8_SNORM:
+        case PIPE_FORMAT_L8_UNORM:
+        case PIPE_FORMAT_L8_SNORM:
+        case PIPE_FORMAT_R8_UNORM:
+        case PIPE_FORMAT_R8_SNORM:
+            return modifier | R300_C2_SEL_R;
+
+        /* X8Y8
+         * COLORFORMAT_UV88 stores ZX (C2 and C0). */
+        case PIPE_FORMAT_L8A8_SNORM:
+        case PIPE_FORMAT_L8A8_UNORM:
+        case PIPE_FORMAT_R8A8_SNORM:
+        case PIPE_FORMAT_R8A8_UNORM:
+            return modifier | R300_C0_SEL_A | R300_C2_SEL_R;
+        case PIPE_FORMAT_R8G8_SNORM:
+        case PIPE_FORMAT_R8G8_UNORM:
+            return modifier | R300_C0_SEL_G | R300_C2_SEL_R;
+
+        /* X32Y32
+         * ARGB16161616 stores XZ for RG32F */
+        case PIPE_FORMAT_R32G32_FLOAT:
+            return modifier | R300_C0_SEL_R | R300_C2_SEL_G;
+
+        /*** Generic cases (standard channel mapping) ***/
+
+        /* BGRA outputs. */
+        case PIPE_FORMAT_B5G6R5_UNORM:
+        case PIPE_FORMAT_B5G5R5A1_UNORM:
+        case PIPE_FORMAT_B5G5R5X1_UNORM:
+        case PIPE_FORMAT_B4G4R4A4_UNORM:
+        case PIPE_FORMAT_B4G4R4X4_UNORM:
+        case PIPE_FORMAT_B8G8R8A8_UNORM:
+        /*case PIPE_FORMAT_B8G8R8A8_SNORM:*/
+        case PIPE_FORMAT_B8G8R8X8_UNORM:
+        /*case PIPE_FORMAT_B8G8R8X8_SNORM:*/
+        case PIPE_FORMAT_B10G10R10A2_UNORM:
+        case PIPE_FORMAT_B10G10R10X2_UNORM:
+            return modifier |
+                R300_C0_SEL_B | R300_C1_SEL_G |
+                R300_C2_SEL_R | R300_C3_SEL_A;
+
+        /* ARGB outputs. */
+        case PIPE_FORMAT_A16_UNORM:
+        case PIPE_FORMAT_A16_SNORM:
+        case PIPE_FORMAT_A16_FLOAT:
+        case PIPE_FORMAT_A32_FLOAT:
+            return modifier |
+                R300_C0_SEL_A | R300_C1_SEL_R |
+                R300_C2_SEL_G | R300_C3_SEL_B;
+
+        /* RGBA outputs. */
+        case PIPE_FORMAT_R8G8B8X8_UNORM:
+        case PIPE_FORMAT_R8G8B8X8_SNORM:
+        case PIPE_FORMAT_R8G8B8A8_UNORM:
+        case PIPE_FORMAT_R8G8B8A8_SNORM:
+        case PIPE_FORMAT_R10G10B10A2_UNORM:
+        case PIPE_FORMAT_R10G10B10X2_SNORM:
+        case PIPE_FORMAT_R16_UNORM:
+        case PIPE_FORMAT_R16G16_UNORM:
+        case PIPE_FORMAT_R16G16B16A16_UNORM:
+        case PIPE_FORMAT_R16_SNORM:
+        case PIPE_FORMAT_R16G16_SNORM:
+        case PIPE_FORMAT_R16G16B16A16_SNORM:
+        case PIPE_FORMAT_R16_FLOAT:
+        case PIPE_FORMAT_R16G16_FLOAT:
+        case PIPE_FORMAT_R16G16B16A16_FLOAT:
+        case PIPE_FORMAT_R32_FLOAT:
+        case PIPE_FORMAT_R32G32B32A32_FLOAT:
+        case PIPE_FORMAT_R32G32B32X32_FLOAT:
+        case PIPE_FORMAT_L16_UNORM:
+        case PIPE_FORMAT_L16_SNORM:
+        case PIPE_FORMAT_L16_FLOAT:
+        case PIPE_FORMAT_L32_FLOAT:
+        case PIPE_FORMAT_I16_UNORM:
+        case PIPE_FORMAT_I16_SNORM:
+        case PIPE_FORMAT_I16_FLOAT:
+        case PIPE_FORMAT_I32_FLOAT:
+        case PIPE_FORMAT_R16G16B16X16_UNORM:
+        case PIPE_FORMAT_R16G16B16X16_SNORM:
+        case PIPE_FORMAT_R16G16B16X16_FLOAT:
+            return modifier |
+                R300_C0_SEL_R | R300_C1_SEL_G |
+                R300_C2_SEL_B | R300_C3_SEL_A;
+
+        /* LA outputs. */
+        case PIPE_FORMAT_L16A16_UNORM:
+        case PIPE_FORMAT_L16A16_SNORM:
+        case PIPE_FORMAT_L16A16_FLOAT:
+        case PIPE_FORMAT_R16A16_UNORM:
+        case PIPE_FORMAT_R16A16_SNORM:
+        case PIPE_FORMAT_R16A16_FLOAT:
+        case PIPE_FORMAT_L32A32_FLOAT:
+        case PIPE_FORMAT_R32A32_FLOAT:
+            return modifier |
+                R300_C0_SEL_R | R300_C1_SEL_A;
+
+        default:
+            return ~0; /* Unsupported. */
+    }
+}
+
+static uint32_t r300_translate_colormask_swizzle(enum pipe_format format)
+{
+    switch (format) {
+    case PIPE_FORMAT_A8_UNORM:
+    case PIPE_FORMAT_A8_SNORM:
+    case PIPE_FORMAT_A16_UNORM:
+    case PIPE_FORMAT_A16_SNORM:
+    case PIPE_FORMAT_A16_FLOAT:
+    case PIPE_FORMAT_A32_FLOAT:
+        return COLORMASK_AAAA;
+
+    case PIPE_FORMAT_I8_UNORM:
+    case PIPE_FORMAT_I8_SNORM:
+    case PIPE_FORMAT_L8_UNORM:
+    case PIPE_FORMAT_L8_SNORM:
+    case PIPE_FORMAT_R8_UNORM:
+    case PIPE_FORMAT_R8_SNORM:
+    case PIPE_FORMAT_R32_FLOAT:
+    case PIPE_FORMAT_L32_FLOAT:
+    case PIPE_FORMAT_I32_FLOAT:
+        return COLORMASK_RRRR;
+
+    case PIPE_FORMAT_L8A8_SNORM:
+    case PIPE_FORMAT_L8A8_UNORM:
+    case PIPE_FORMAT_R8A8_UNORM:
+    case PIPE_FORMAT_R8A8_SNORM:
+    case PIPE_FORMAT_L16A16_UNORM:
+    case PIPE_FORMAT_L16A16_SNORM:
+    case PIPE_FORMAT_L16A16_FLOAT:
+    case PIPE_FORMAT_R16A16_UNORM:
+    case PIPE_FORMAT_R16A16_SNORM:
+    case PIPE_FORMAT_R16A16_FLOAT:
+    case PIPE_FORMAT_L32A32_FLOAT:
+    case PIPE_FORMAT_R32A32_FLOAT:
+        return COLORMASK_ARRA;
+
+    case PIPE_FORMAT_R8G8_SNORM:
+    case PIPE_FORMAT_R8G8_UNORM:
+    case PIPE_FORMAT_R16G16_UNORM:
+    case PIPE_FORMAT_R16G16_SNORM:
+    case PIPE_FORMAT_R16G16_FLOAT:
+    case PIPE_FORMAT_R32G32_FLOAT:
+        return COLORMASK_GRRG;
+
+    case PIPE_FORMAT_B5G5R5X1_UNORM:
+    case PIPE_FORMAT_B4G4R4X4_UNORM:
+    case PIPE_FORMAT_B8G8R8X8_UNORM:
+    /*case PIPE_FORMAT_B8G8R8X8_SNORM:*/
+    case PIPE_FORMAT_B10G10R10X2_UNORM:
+        return COLORMASK_BGRX;
+
+    case PIPE_FORMAT_B5G6R5_UNORM:
+    case PIPE_FORMAT_B5G5R5A1_UNORM:
+    case PIPE_FORMAT_B4G4R4A4_UNORM:
+    case PIPE_FORMAT_B8G8R8A8_UNORM:
+    /*case PIPE_FORMAT_B8G8R8A8_SNORM:*/
+    case PIPE_FORMAT_B10G10R10A2_UNORM:
+        return COLORMASK_BGRA;
+
+    case PIPE_FORMAT_R8G8B8X8_UNORM:
+    /* RGBX_SNORM formats are broken for an unknown reason */
+    /*case PIPE_FORMAT_R8G8B8X8_SNORM:*/
+    /*case PIPE_FORMAT_R10G10B10X2_SNORM:*/
+    case PIPE_FORMAT_R16G16B16X16_UNORM:
+    /*case PIPE_FORMAT_R16G16B16X16_SNORM:*/
+    case PIPE_FORMAT_R16G16B16X16_FLOAT:
+    case PIPE_FORMAT_R32G32B32X32_FLOAT:
+        return COLORMASK_RGBX;
+
+    case PIPE_FORMAT_R8G8B8A8_UNORM:
+    case PIPE_FORMAT_R8G8B8A8_SNORM:
+    case PIPE_FORMAT_R10G10B10A2_UNORM:
+    case PIPE_FORMAT_R16_UNORM:
+    case PIPE_FORMAT_R16G16B16A16_UNORM:
+    case PIPE_FORMAT_R16_SNORM:
+    case PIPE_FORMAT_R16G16B16A16_SNORM:
+    case PIPE_FORMAT_R16_FLOAT:
+    case PIPE_FORMAT_R16G16B16A16_FLOAT:
+    case PIPE_FORMAT_R32G32B32A32_FLOAT:
+    case PIPE_FORMAT_L16_UNORM:
+    case PIPE_FORMAT_L16_SNORM:
+    case PIPE_FORMAT_L16_FLOAT:
+    case PIPE_FORMAT_I16_UNORM:
+    case PIPE_FORMAT_I16_SNORM:
+    case PIPE_FORMAT_I16_FLOAT:
+        return COLORMASK_RGBA;
+
+    default:
+        return ~0; /* Unsupported. */
+    }
+}
+
+boolean r300_is_colorbuffer_format_supported(enum pipe_format format)
+{
+    return r300_translate_colorformat(format) != ~0 &&
+           r300_translate_out_fmt(format) != ~0 &&
+           r300_translate_colormask_swizzle(format) != ~0;
+}
+
+boolean r300_is_zs_format_supported(enum pipe_format format)
+{
+    return r300_translate_zsformat(format) != ~0;
+}
+
+boolean r300_is_sampler_format_supported(enum pipe_format format)
+{
+    return r300_translate_texformat(format, 0, TRUE, FALSE) != ~0;
+}
+
+void r300_texture_setup_format_state(struct r300_screen *screen,
+                                     struct r300_resource *tex,
+                                     enum pipe_format format,
+                                     unsigned level,
+                                     unsigned width0_override,
+                                     unsigned height0_override,
+                                     struct r300_texture_format_state *out)
+{
+    struct pipe_resource *pt = &tex->b.b;
+    struct r300_texture_desc *desc = &tex->tex;
+    boolean is_r500 = screen->caps.is_r500;
+    unsigned width, height, depth;
+    unsigned txwidth, txheight, txdepth;
+
+    width = u_minify(width0_override, level);
+    height = u_minify(height0_override, level);
+    depth = u_minify(desc->depth0, level);
+
+    txwidth = (width - 1) & 0x7ff;
+    txheight = (height - 1) & 0x7ff;
+    txdepth = util_logbase2(depth) & 0xf;
+
+    /* Mask out all the fields we change. */
+    out->format0 = 0;
+    out->format1 &= ~R300_TX_FORMAT_TEX_COORD_TYPE_MASK;
+    out->format2 &= R500_TXFORMAT_MSB;
+    out->tile_config = 0;
+
+    /* Set sampler state. */
+    out->format0 =
+        R300_TX_WIDTH(txwidth) |
+        R300_TX_HEIGHT(txheight) |
+        R300_TX_DEPTH(txdepth);
+
+    if (desc->uses_stride_addressing) {
+        unsigned stride =
+            r300_stride_to_width(format, desc->stride_in_bytes[level]);
+        /* rectangles love this */
+        out->format0 |= R300_TX_PITCH_EN;
+        out->format2 = (stride - 1) & 0x1fff;
+    }
+
+    if (pt->target == PIPE_TEXTURE_CUBE) {
+        out->format1 |= R300_TX_FORMAT_CUBIC_MAP;
+    }
+    if (pt->target == PIPE_TEXTURE_3D) {
+        out->format1 |= R300_TX_FORMAT_3D;
+    }
+
+    /* large textures on r500 */
+    if (is_r500)
+    {
+        unsigned us_width = txwidth;
+        unsigned us_height = txheight;
+        unsigned us_depth = txdepth;
+
+        if (width > 2048) {
+            out->format2 |= R500_TXWIDTH_BIT11;
+        }
+        if (height > 2048) {
+            out->format2 |= R500_TXHEIGHT_BIT11;
+        }
+
+        /* The US_FORMAT register fixes an R500 TX addressing bug.
+         * Don't ask why it must be set like this. I don't know it either. */
+        if (width > 2048) {
+            us_width = (0x000007FF + us_width) >> 1;
+            us_depth |= 0x0000000D;
+        }
+        if (height > 2048) {
+            us_height = (0x000007FF + us_height) >> 1;
+            us_depth |= 0x0000000E;
+        }
+
+        out->us_format0 =
+            R300_TX_WIDTH(us_width) |
+            R300_TX_HEIGHT(us_height) |
+            R300_TX_DEPTH(us_depth);
+    }
+
+    out->tile_config = R300_TXO_MACRO_TILE(desc->macrotile[level]) |
+                       R300_TXO_MICRO_TILE(desc->microtile);
+}
+
+static void r300_texture_setup_fb_state(struct r300_surface *surf)
+{
+    struct r300_resource *tex = r300_resource(surf->base.texture);
+    unsigned level = surf->base.u.tex.level;
+    unsigned stride =
+      r300_stride_to_width(surf->base.format, tex->tex.stride_in_bytes[level]);
+
+    /* Set framebuffer state. */
+    if (util_format_is_depth_or_stencil(surf->base.format)) {
+        surf->pitch =
+                stride |
+                R300_DEPTHMACROTILE(tex->tex.macrotile[level]) |
+                R300_DEPTHMICROTILE(tex->tex.microtile);
+        surf->format = r300_translate_zsformat(surf->base.format);
+        surf->pitch_zmask = tex->tex.zmask_stride_in_pixels[level];
+        surf->pitch_hiz = tex->tex.hiz_stride_in_pixels[level];
+    } else {
+        enum pipe_format format = util_format_linear(surf->base.format);
+
+        surf->pitch =
+                stride |
+                r300_translate_colorformat(format) |
+                R300_COLOR_TILE(tex->tex.macrotile[level]) |
+                R300_COLOR_MICROTILE(tex->tex.microtile);
+        surf->format = r300_translate_out_fmt(format);
+        surf->colormask_swizzle =
+            r300_translate_colormask_swizzle(format);
+        surf->pitch_cmask = tex->tex.cmask_stride_in_pixels;
+    }
+}
+
+static void r300_texture_destroy(struct pipe_screen *screen,
+                                 struct pipe_resource* texture)
+{
+    struct r300_screen *rscreen = r300_screen(screen);
+    struct r300_resource* tex = (struct r300_resource*)texture;
+
+    if (tex->tex.cmask_dwords) {
+        pipe_mutex_lock(rscreen->cmask_mutex);
+        if (texture == rscreen->cmask_resource) {
+            rscreen->cmask_resource = NULL;
+        }
+        pipe_mutex_unlock(rscreen->cmask_mutex);
+    }
+    pb_reference(&tex->buf, NULL);
+    FREE(tex);
+}
+
+boolean r300_resource_get_handle(struct pipe_screen* screen,
+                                 struct pipe_resource *texture,
+                                 struct winsys_handle *whandle)
+{
+    struct radeon_winsys *rws = r300_screen(screen)->rws;
+    struct r300_resource* tex = (struct r300_resource*)texture;
+
+    if (!tex) {
+        return FALSE;
+    }
+
+    return rws->buffer_get_handle(tex->buf,
+                                  tex->tex.stride_in_bytes[0], whandle);
+}
+
+static const struct u_resource_vtbl r300_texture_vtbl =
+{
+    NULL,                           /* get_handle */
+    r300_texture_destroy,           /* resource_destroy */
+    r300_texture_transfer_map,      /* transfer_map */
+    NULL,                           /* transfer_flush_region */
+    r300_texture_transfer_unmap,    /* transfer_unmap */
+    NULL /* transfer_inline_write */
+};
+
+/* The common texture constructor. */
+static struct r300_resource*
+r300_texture_create_object(struct r300_screen *rscreen,
+                           const struct pipe_resource *base,
+                           enum radeon_bo_layout microtile,
+                           enum radeon_bo_layout macrotile,
+                           unsigned stride_in_bytes_override,
+                           struct pb_buffer *buffer)
+{
+    struct radeon_winsys *rws = rscreen->rws;
+    struct r300_resource *tex = NULL;
+
+    tex = CALLOC_STRUCT(r300_resource);
+    if (!tex) {
+        goto fail;
+    }
+
+    pipe_reference_init(&tex->b.b.reference, 1);
+    tex->b.b.screen = &rscreen->screen;
+    tex->b.b.usage = base->usage;
+    tex->b.b.bind = base->bind;
+    tex->b.b.flags = base->flags;
+    tex->b.vtbl = &r300_texture_vtbl;
+    tex->tex.microtile = microtile;
+    tex->tex.macrotile[0] = macrotile;
+    tex->tex.stride_in_bytes_override = stride_in_bytes_override;
+    tex->domain = (base->flags & R300_RESOURCE_FLAG_TRANSFER ||
+                   base->usage == PIPE_USAGE_STAGING) ? RADEON_DOMAIN_GTT :
+                  base->nr_samples > 1 ? RADEON_DOMAIN_VRAM :
+                                         RADEON_DOMAIN_VRAM | RADEON_DOMAIN_GTT;
+    tex->buf = buffer;
+
+    r300_texture_desc_init(rscreen, tex, base);
+
+    /* Figure out the ideal placement for the texture.. */
+    if (tex->domain & RADEON_DOMAIN_VRAM &&
+        tex->tex.size_in_bytes >= rscreen->info.vram_size) {
+        tex->domain &= ~RADEON_DOMAIN_VRAM;
+        tex->domain |= RADEON_DOMAIN_GTT;
+    }
+    if (tex->domain & RADEON_DOMAIN_GTT &&
+        tex->tex.size_in_bytes >= rscreen->info.gart_size) {
+        tex->domain &= ~RADEON_DOMAIN_GTT;
+    }
+    /* Just fail if the texture is too large. */
+    if (!tex->domain) {
+        goto fail;
+    }
+
+    /* Create the backing buffer if needed. */
+    if (!tex->buf) {
+        tex->buf = rws->buffer_create(rws, tex->tex.size_in_bytes, 2048, TRUE,
+                                      tex->domain, 0);
+
+        if (!tex->buf) {
+            goto fail;
+        }
+    }
+
+    if (SCREEN_DBG_ON(rscreen, DBG_MSAA) && base->nr_samples > 1) {
+        fprintf(stderr, "r300: %ix MSAA %s buffer created\n",
+                base->nr_samples,
+                util_format_is_depth_or_stencil(base->format) ? "depth" : "color");
+    }
+
+    tex->cs_buf = rws->buffer_get_cs_handle(tex->buf);
+
+    rws->buffer_set_tiling(tex->buf, NULL,
+            tex->tex.microtile, tex->tex.macrotile[0],
+            0, 0, 0, 0, 0, 0, 0,
+            tex->tex.stride_in_bytes[0], false);
+
+    return tex;
+
+fail:
+    FREE(tex);
+    if (buffer)
+        pb_reference(&buffer, NULL);
+    return NULL;
+}
+
+/* Create a new texture. */
+struct pipe_resource *r300_texture_create(struct pipe_screen *screen,
+                                          const struct pipe_resource *base)
+{
+    struct r300_screen *rscreen = r300_screen(screen);
+    enum radeon_bo_layout microtile, macrotile;
+
+    if ((base->flags & R300_RESOURCE_FLAG_TRANSFER) ||
+        (base->bind & (PIPE_BIND_SCANOUT | PIPE_BIND_LINEAR))) {
+        microtile = RADEON_LAYOUT_LINEAR;
+        macrotile = RADEON_LAYOUT_LINEAR;
+    } else {
+        /* This will make the texture_create_function select the layout. */
+        microtile = RADEON_LAYOUT_UNKNOWN;
+        macrotile = RADEON_LAYOUT_UNKNOWN;
+    }
+
+    return (struct pipe_resource*)
+           r300_texture_create_object(rscreen, base, microtile, macrotile,
+                                      0, NULL);
+}
+
+struct pipe_resource *r300_texture_from_handle(struct pipe_screen *screen,
+                                               const struct pipe_resource *base,
+                                               struct winsys_handle *whandle)
+{
+    struct r300_screen *rscreen = r300_screen(screen);
+    struct radeon_winsys *rws = rscreen->rws;
+    struct pb_buffer *buffer;
+    enum radeon_bo_layout microtile, macrotile;
+    unsigned stride;
+
+    /* Support only 2D textures without mipmaps */
+    if ((base->target != PIPE_TEXTURE_2D &&
+          base->target != PIPE_TEXTURE_RECT) ||
+        base->depth0 != 1 ||
+        base->last_level != 0) {
+        return NULL;
+    }
+
+    buffer = rws->buffer_from_handle(rws, whandle, &stride);
+    if (!buffer)
+        return NULL;
+
+    rws->buffer_get_tiling(buffer, &microtile, &macrotile, NULL, NULL, NULL,
+                           NULL, NULL, NULL);
+
+    /* Enforce a microtiled zbuffer. */
+    if (util_format_is_depth_or_stencil(base->format) &&
+        microtile == RADEON_LAYOUT_LINEAR) {
+        switch (util_format_get_blocksize(base->format)) {
+            case 4:
+                microtile = RADEON_LAYOUT_TILED;
+                break;
+
+            case 2:
+                microtile = RADEON_LAYOUT_SQUARETILED;
+                break;
+        }
+    }
+
+    return (struct pipe_resource*)
+           r300_texture_create_object(rscreen, base, microtile, macrotile,
+                                      stride, buffer);
+}
+
+/* Not required to implement u_resource_vtbl, consider moving to another file:
+ */
+struct pipe_surface* r300_create_surface_custom(struct pipe_context * ctx,
+                                         struct pipe_resource* texture,
+                                         const struct pipe_surface *surf_tmpl,
+                                         unsigned width0_override,
+					 unsigned height0_override)
+{
+    struct r300_resource* tex = r300_resource(texture);
+    struct r300_surface* surface = CALLOC_STRUCT(r300_surface);
+    unsigned level = surf_tmpl->u.tex.level;
+
+    assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
+
+    if (surface) {
+        uint32_t offset, tile_height;
+
+        pipe_reference_init(&surface->base.reference, 1);
+        pipe_resource_reference(&surface->base.texture, texture);
+        surface->base.context = ctx;
+        surface->base.format = surf_tmpl->format;
+        surface->base.width = u_minify(width0_override, level);
+        surface->base.height = u_minify(height0_override, level);
+        surface->base.u.tex.level = level;
+        surface->base.u.tex.first_layer = surf_tmpl->u.tex.first_layer;
+        surface->base.u.tex.last_layer = surf_tmpl->u.tex.last_layer;
+
+        surface->buf = tex->buf;
+        surface->cs_buf = tex->cs_buf;
+
+        /* Prefer VRAM if there are multiple domains to choose from. */
+        surface->domain = tex->domain;
+        if (surface->domain & RADEON_DOMAIN_VRAM)
+            surface->domain &= ~RADEON_DOMAIN_GTT;
+
+        surface->offset = r300_texture_get_offset(tex, level,
+                                                  surf_tmpl->u.tex.first_layer);
+        r300_texture_setup_fb_state(surface);
+
+        /* Parameters for the CBZB clear. */
+        surface->cbzb_allowed = tex->tex.cbzb_allowed[level];
+        surface->cbzb_width = align(surface->base.width, 64);
+
+        /* Height must be aligned to the size of a tile. */
+        tile_height = r300_get_pixel_alignment(surface->base.format,
+                                               tex->b.b.nr_samples,
+                                               tex->tex.microtile,
+                                               tex->tex.macrotile[level],
+                                               DIM_HEIGHT, 0);
+
+        surface->cbzb_height = align((surface->base.height + 1) / 2,
+                                     tile_height);
+
+        /* Offset must be aligned to 2K and must point at the beginning
+         * of a scanline. */
+        offset = surface->offset +
+                 tex->tex.stride_in_bytes[level] * surface->cbzb_height;
+        surface->cbzb_midpoint_offset = offset & ~2047;
+
+        surface->cbzb_pitch = surface->pitch & 0x1ffffc;
+
+        if (util_format_get_blocksizebits(surface->base.format) == 32)
+            surface->cbzb_format = R300_DEPTHFORMAT_24BIT_INT_Z_8BIT_STENCIL;
+        else
+            surface->cbzb_format = R300_DEPTHFORMAT_16BIT_INT_Z;
+
+        DBG(r300_context(ctx), DBG_CBZB,
+            "CBZB Allowed: %s, Dim: %ix%i, Misalignment: %i, Micro: %s, Macro: %s\n",
+            surface->cbzb_allowed ? "YES" : " NO",
+            surface->cbzb_width, surface->cbzb_height,
+            offset & 2047,
+            tex->tex.microtile ? "YES" : " NO",
+            tex->tex.macrotile[level] ? "YES" : " NO");
+    }
+
+    return &surface->base;
+}
+
+struct pipe_surface* r300_create_surface(struct pipe_context * ctx,
+                                         struct pipe_resource* texture,
+                                         const struct pipe_surface *surf_tmpl)
+{
+    return r300_create_surface_custom(ctx, texture, surf_tmpl,
+                                      texture->width0,
+                                      texture->height0);
+}
+
+/* Not required to implement u_resource_vtbl, consider moving to another file:
+ */
+void r300_surface_destroy(struct pipe_context *ctx, struct pipe_surface* s)
+{
+    pipe_resource_reference(&s->texture, NULL);
+    FREE(s);
+}