diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_texture.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_texture.c | 1149 |
1 files changed, 1149 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c new file mode 100644 index 0000000000..ddb6600056 --- /dev/null +++ b/src/gallium/drivers/r300/r300_texture.c @@ -0,0 +1,1149 @@ +/* + * 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_transfer.h" +#include "r300_screen.h" +#include "r300_winsys.h" + +#include "util/u_format.h" +#include "util/u_format_s3tc.h" +#include "util/u_math.h" +#include "util/u_memory.h" + +#include "pipe/p_screen.h" +#include "state_tracker/drm_api.h" + +enum r300_dim { + DIM_WIDTH = 0, + DIM_HEIGHT = 1 +}; + +unsigned r300_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] = { + R300_TX_FORMAT_R_SHIFT, + R300_TX_FORMAT_G_SHIFT, + R300_TX_FORMAT_B_SHIFT, + R300_TX_FORMAT_A_SHIFT + }; + const uint32_t swizzle_bit[4] = { + R300_TX_FORMAT_X, + R300_TX_FORMAT_Y, + R300_TX_FORMAT_Z, + R300_TX_FORMAT_W + }; + + 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 |= 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) +{ + 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_X, + R300_TX_FORMAT_SIGNED_Y, + R300_TX_FORMAT_SIGNED_Z, + R300_TX_FORMAT_SIGNED_W, + }; + + 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_USCALED_Z24_UNORM: + return R500_TX_FORMAT_Y8X24; + 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:; + } + } + + result |= r300_get_swizzle_combined(desc->swizzle, swizzle_view); + + /* 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. */ + } + } + + /* Add sign. */ + for (i = 0; i < desc->nr_channels; i++) { + if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) { + result |= sign_bit[i]; + } + } + + /* 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; + } + + /* RGTC formats. */ + if (desc->layout == UTIL_FORMAT_LAYOUT_RGTC) { + switch (format) { + case PIPE_FORMAT_RGTC1_UNORM: + case PIPE_FORMAT_RGTC1_SNORM: + return R500_TX_FORMAT_ATI1N | result; + case PIPE_FORMAT_RGTC2_UNORM: + case PIPE_FORMAT_RGTC2_SNORM: + return R400_TX_FORMAT_ATI2N | result; + default: + return ~0; /* Unsupported/unknown. */ + } + } + + /* 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; + } + 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. */ + } + + /* And finally, 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) { + return ~0; + } + + switch (desc->channel[0].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[0].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_X8Z24_UNORM: + case PIPE_FORMAT_S8_USCALED_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_I8_UNORM: + case PIPE_FORMAT_L8_UNORM: + case PIPE_FORMAT_R8_UNORM: + case PIPE_FORMAT_R8_SNORM: + return R300_COLOR_FORMAT_I8; + + /* 16-bit buffers. */ + 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_B8G8R8X8_UNORM: + case PIPE_FORMAT_A8R8G8B8_UNORM: + case PIPE_FORMAT_X8R8G8B8_UNORM: + case PIPE_FORMAT_A8B8G8R8_UNORM: + case PIPE_FORMAT_R8G8B8A8_SNORM: + case PIPE_FORMAT_X8B8G8R8_UNORM: + case PIPE_FORMAT_R8G8B8X8_UNORM: + case PIPE_FORMAT_R8SG8SB8UX8U_NORM: + return R300_COLOR_FORMAT_ARGB8888; + + case PIPE_FORMAT_R10G10B10A2_UNORM: + case PIPE_FORMAT_R10G10B10X2_SNORM: + case PIPE_FORMAT_B10G10R10A2_UNORM: + case PIPE_FORMAT_R10SG10SB10SA2U_NORM: + 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: + return R300_COLOR_FORMAT_ARGB16161616; + + /* 128-bit buffers. */ + case PIPE_FORMAT_R32G32B32A32_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_USCALED_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; + static const uint32_t sign_bit[4] = { + R300_OUT_SIGN(0x1), + R300_OUT_SIGN(0x2), + R300_OUT_SIGN(0x4), + R300_OUT_SIGN(0x8), + }; + + desc = util_format_description(format); + + /* Specifies how the shader output is written to the fog unit. */ + if (desc->channel[0].type == UTIL_FORMAT_TYPE_FLOAT) { + if (desc->channel[0].size == 32) { + modifier |= R300_US_OUT_FMT_C4_32_FP; + } else { + modifier |= R300_US_OUT_FMT_C4_16_FP; + } + } else { + if (desc->channel[0].size == 16) { + modifier |= R300_US_OUT_FMT_C4_16; + } else { + /* C4_8 seems to be used for the formats whose pixel size + * is <= 32 bits. */ + modifier |= R300_US_OUT_FMT_C4_8; + } + } + + /* Add sign. */ + for (i = 0; i < 4; i++) + if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) { + modifier |= sign_bit[i]; + } + + /* Add swizzles and return. */ + switch (format) { + /* 8-bit outputs. + * COLORFORMAT_I8 stores the C2 component. */ + case PIPE_FORMAT_A8_UNORM: + return modifier | R300_C2_SEL_A; + case PIPE_FORMAT_I8_UNORM: + case PIPE_FORMAT_L8_UNORM: + case PIPE_FORMAT_R8_UNORM: + case PIPE_FORMAT_R8_SNORM: + return modifier | R300_C2_SEL_R; + + /* 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_B8G8R8X8_UNORM: + case PIPE_FORMAT_B10G10R10A2_UNORM: + return modifier | + R300_C0_SEL_B | R300_C1_SEL_G | + R300_C2_SEL_R | R300_C3_SEL_A; + + /* ARGB outputs. */ + case PIPE_FORMAT_A8R8G8B8_UNORM: + case PIPE_FORMAT_X8R8G8B8_UNORM: + return modifier | + R300_C0_SEL_A | R300_C1_SEL_R | + R300_C2_SEL_G | R300_C3_SEL_B; + + /* ABGR outputs. */ + case PIPE_FORMAT_A8B8G8R8_UNORM: + case PIPE_FORMAT_X8B8G8R8_UNORM: + return modifier | + R300_C0_SEL_A | R300_C1_SEL_B | + R300_C2_SEL_G | R300_C3_SEL_R; + + /* RGBA outputs. */ + case PIPE_FORMAT_R8G8B8X8_UNORM: + case PIPE_FORMAT_R8G8B8A8_SNORM: + case PIPE_FORMAT_R8SG8SB8UX8U_NORM: + case PIPE_FORMAT_R10G10B10A2_UNORM: + case PIPE_FORMAT_R10G10B10X2_SNORM: + case PIPE_FORMAT_R10SG10SB10SA2U_NORM: + case PIPE_FORMAT_R16G16B16A16_UNORM: + case PIPE_FORMAT_R16G16B16A16_SNORM: + case PIPE_FORMAT_R16G16B16A16_FLOAT: + case PIPE_FORMAT_R32G32B32A32_FLOAT: + return modifier | + R300_C0_SEL_R | R300_C1_SEL_G | + R300_C2_SEL_B | R300_C3_SEL_A; + + 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; +} + +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) != ~0; +} + +static void r300_texture_setup_immutable_state(struct r300_screen* screen, + struct r300_texture* tex) +{ + struct r300_texture_format_state* f = &tex->tx_format; + struct pipe_resource *pt = &tex->b.b; + boolean is_r500 = screen->caps.is_r500; + + /* Set sampler state. */ + f->format0 = R300_TX_WIDTH((pt->width0 - 1) & 0x7ff) | + R300_TX_HEIGHT((pt->height0 - 1) & 0x7ff); + + if (tex->uses_pitch) { + /* rectangles love this */ + f->format0 |= R300_TX_PITCH_EN; + f->format2 = (tex->hwpitch[0] - 1) & 0x1fff; + } else { + /* power of two textures (3D, mipmaps, and no pitch) */ + f->format0 |= R300_TX_DEPTH(util_logbase2(pt->depth0) & 0xf); + } + + f->format1 = 0; + if (pt->target == PIPE_TEXTURE_CUBE) { + f->format1 |= R300_TX_FORMAT_CUBIC_MAP; + } + if (pt->target == PIPE_TEXTURE_3D) { + f->format1 |= R300_TX_FORMAT_3D; + } + + /* large textures on r500 */ + if (is_r500) + { + if (pt->width0 > 2048) { + f->format2 |= R500_TXWIDTH_BIT11; + } + if (pt->height0 > 2048) { + f->format2 |= R500_TXHEIGHT_BIT11; + } + } + + f->tile_config = R300_TXO_MACRO_TILE(tex->macrotile) | + R300_TXO_MICRO_TILE(tex->microtile); +} + +static void r300_texture_setup_fb_state(struct r300_screen* screen, + struct r300_texture* tex) +{ + unsigned i; + + /* Set framebuffer state. */ + if (util_format_is_depth_or_stencil(tex->b.b.format)) { + for (i = 0; i <= tex->b.b.last_level; i++) { + tex->fb_state.pitch[i] = + tex->hwpitch[i] | + R300_DEPTHMACROTILE(tex->mip_macrotile[i]) | + R300_DEPTHMICROTILE(tex->microtile); + } + tex->fb_state.format = r300_translate_zsformat(tex->b.b.format); + } else { + for (i = 0; i <= tex->b.b.last_level; i++) { + tex->fb_state.pitch[i] = + tex->hwpitch[i] | + r300_translate_colorformat(tex->b.b.format) | + R300_COLOR_TILE(tex->mip_macrotile[i]) | + R300_COLOR_MICROTILE(tex->microtile); + } + tex->fb_state.format = r300_translate_out_fmt(tex->b.b.format); + } +} + +void r300_texture_reinterpret_format(struct pipe_screen *screen, + struct pipe_resource *tex, + enum pipe_format new_format) +{ + struct r300_screen *r300screen = r300_screen(screen); + + SCREEN_DBG(r300screen, DBG_TEX, + "r300: texture_reinterpret_format: %s -> %s\n", + util_format_short_name(tex->format), + util_format_short_name(new_format)); + + tex->format = new_format; + + r300_texture_setup_fb_state(r300_screen(screen), r300_texture(tex)); +} + +unsigned r300_texture_get_offset(struct r300_texture* tex, unsigned level, + unsigned zslice, unsigned face) +{ + unsigned offset = tex->offset[level]; + + switch (tex->b.b.target) { + case PIPE_TEXTURE_3D: + assert(face == 0); + return offset + zslice * tex->layer_size[level]; + + case PIPE_TEXTURE_CUBE: + assert(zslice == 0); + return offset + face * tex->layer_size[level]; + + default: + assert(zslice == 0 && face == 0); + return offset; + } +} + +/* Returns the number of pixels that the texture should be aligned to + * in the given dimension. */ +static unsigned r300_get_pixel_alignment(struct r300_texture *tex, + enum r300_buffer_tiling macrotile, + enum r300_dim dim) +{ + static const unsigned table[2][5][3][2] = + { + { + /* Macro: linear linear linear + Micro: linear tiled square-tiled */ + {{ 32, 1}, { 8, 4}, { 0, 0}}, /* 8 bits per pixel */ + {{ 16, 1}, { 8, 2}, { 4, 4}}, /* 16 bits per pixel */ + {{ 8, 1}, { 4, 2}, { 0, 0}}, /* 32 bits per pixel */ + {{ 4, 1}, { 0, 0}, { 2, 2}}, /* 64 bits per pixel */ + {{ 2, 1}, { 0, 0}, { 0, 0}} /* 128 bits per pixel */ + }, + { + /* Macro: tiled tiled tiled + Micro: linear tiled square-tiled */ + {{256, 8}, {64, 32}, { 0, 0}}, /* 8 bits per pixel */ + {{128, 8}, {64, 16}, {32, 32}}, /* 16 bits per pixel */ + {{ 64, 8}, {32, 16}, { 0, 0}}, /* 32 bits per pixel */ + {{ 32, 8}, { 0, 0}, {16, 16}}, /* 64 bits per pixel */ + {{ 16, 8}, { 0, 0}, { 0, 0}} /* 128 bits per pixel */ + } + }; + static const unsigned aa_block[2] = {4, 8}; + unsigned res = 0; + unsigned pixsize = util_format_get_blocksize(tex->b.b.format); + + assert(macrotile <= R300_BUFFER_TILED); + assert(tex->microtile <= R300_BUFFER_SQUARETILED); + assert(pixsize <= 16); + assert(dim <= DIM_HEIGHT); + + if (tex->b.b.nr_samples > 1) { + /* Multisampled textures have their own alignment scheme. */ + if (pixsize == 4) + res = aa_block[dim]; + } else { + /* Standard alignment. */ + res = table[macrotile][util_logbase2(pixsize)][tex->microtile][dim]; + } + + assert(res); + return res; +} + +/* Return true if macrotiling should be enabled on the miplevel. */ +static boolean r300_texture_macro_switch(struct r300_texture *tex, + unsigned level, + boolean rv350_mode, + enum r300_dim dim) +{ + unsigned tile, texdim; + + tile = r300_get_pixel_alignment(tex, R300_BUFFER_TILED, dim); + if (dim == DIM_WIDTH) { + texdim = u_minify(tex->b.b.width0, level); + } else { + texdim = u_minify(tex->b.b.height0, level); + } + + /* See TX_FILTER1_n.MACRO_SWITCH. */ + if (rv350_mode) { + return texdim >= tile; + } else { + return texdim > tile; + } +} + +/** + * Return the stride, in bytes, of the texture images of the given texture + * at the given level. + */ +unsigned r300_texture_get_stride(struct r300_screen* screen, + struct r300_texture* tex, unsigned level) +{ + unsigned tile_width, width, stride; + + if (tex->stride_override) + return tex->stride_override; + + /* Check the level. */ + if (level > tex->b.b.last_level) { + SCREEN_DBG(screen, DBG_TEX, "%s: level (%u) > last_level (%u)\n", + __FUNCTION__, level, tex->b.b.last_level); + return 0; + } + + width = u_minify(tex->b.b.width0, level); + + if (util_format_is_plain(tex->b.b.format)) { + tile_width = r300_get_pixel_alignment(tex, tex->mip_macrotile[level], + DIM_WIDTH); + width = align(width, tile_width); + + stride = util_format_get_stride(tex->b.b.format, width); + + /* Some IGPs need a minimum stride of 64 bytes, hmm... + * This doesn't seem to apply to tiled textures, according to r300c. */ + if (!tex->microtile && !tex->mip_macrotile[level] && + (screen->caps.family == CHIP_FAMILY_RS600 || + screen->caps.family == CHIP_FAMILY_RS690 || + screen->caps.family == CHIP_FAMILY_RS740)) { + return stride < 64 ? 64 : stride; + } + + /* The alignment to 32 bytes is sort of implied by the layout... */ + return stride; + } else { + return align(util_format_get_stride(tex->b.b.format, width), 32); + } +} + +static unsigned r300_texture_get_nblocksy(struct r300_texture* tex, + unsigned level) +{ + unsigned height, tile_height; + + height = u_minify(tex->b.b.height0, level); + + if (util_format_is_plain(tex->b.b.format)) { + tile_height = r300_get_pixel_alignment(tex, tex->mip_macrotile[level], + DIM_HEIGHT); + height = align(height, tile_height); + + /* This is needed for the kernel checker, unfortunately. */ + height = util_next_power_of_two(height); + } + + return util_format_get_nblocksy(tex->b.b.format, height); +} + +static void r300_texture_3d_fix_mipmapping(struct r300_screen *screen, + struct r300_texture *tex) +{ + /* The kernels <= 2.6.34-rc4 compute the size of mipmapped 3D textures + * incorrectly. This is a workaround to prevent CS from being rejected. */ + + unsigned i, size; + + if (!screen->rws->get_value(screen->rws, R300_VID_DRM_2_3_0) && + tex->b.b.target == PIPE_TEXTURE_3D && + tex->b.b.last_level > 0) { + size = 0; + + for (i = 0; i <= tex->b.b.last_level; i++) { + size += r300_texture_get_stride(screen, tex, i) * + r300_texture_get_nblocksy(tex, i); + } + + size *= tex->b.b.depth0; + tex->size = size; + } +} + +static void r300_setup_miptree(struct r300_screen* screen, + struct r300_texture* tex) +{ + struct pipe_resource* base = &tex->b.b; + unsigned stride, size, layer_size, nblocksy, i; + boolean rv350_mode = screen->caps.is_rv350; + + SCREEN_DBG(screen, DBG_TEXALLOC, + "r300: Making miptree for texture, format %s\n", + util_format_short_name(base->format)); + + for (i = 0; i <= base->last_level; i++) { + /* Let's see if this miplevel can be macrotiled. */ + tex->mip_macrotile[i] = + (tex->macrotile == R300_BUFFER_TILED && + r300_texture_macro_switch(tex, i, rv350_mode, DIM_WIDTH) && + r300_texture_macro_switch(tex, i, rv350_mode, DIM_HEIGHT)) ? + R300_BUFFER_TILED : R300_BUFFER_LINEAR; + + stride = r300_texture_get_stride(screen, tex, i); + nblocksy = r300_texture_get_nblocksy(tex, i); + layer_size = stride * nblocksy; + + if (base->nr_samples) { + layer_size *= base->nr_samples; + } + + if (base->target == PIPE_TEXTURE_CUBE) + size = layer_size * 6; + else + size = layer_size * u_minify(base->depth0, i); + + tex->offset[i] = tex->size; + tex->size = tex->offset[i] + size; + tex->layer_size[i] = layer_size; + tex->pitch[i] = stride / util_format_get_blocksize(base->format); + tex->hwpitch[i] = + tex->pitch[i] * util_format_get_blockwidth(base->format); + + SCREEN_DBG(screen, DBG_TEXALLOC, "r300: Texture miptree: Level %d " + "(%dx%dx%d px, pitch %d bytes) %d bytes total, macrotiled %s\n", + i, u_minify(base->width0, i), u_minify(base->height0, i), + u_minify(base->depth0, i), stride, tex->size, + tex->mip_macrotile[i] ? "TRUE" : "FALSE"); + } +} + +static void r300_setup_flags(struct r300_texture* tex) +{ + tex->uses_pitch = !util_is_power_of_two(tex->b.b.width0) || + !util_is_power_of_two(tex->b.b.height0) || + tex->stride_override; +} + +static void r300_setup_tiling(struct pipe_screen *screen, + struct r300_texture *tex) +{ + struct r300_winsys_screen *rws = (struct r300_winsys_screen *)screen->winsys; + enum pipe_format format = tex->b.b.format; + boolean rv350_mode = r300_screen(screen)->caps.is_rv350; + boolean is_zb = util_format_is_depth_or_stencil(format); + boolean dbg_no_tiling = SCREEN_DBG_ON(r300_screen(screen), DBG_NO_TILING); + + if (!util_format_is_plain(format)) { + return; + } + + /* If height == 1, disable microtiling except for zbuffer. */ + if (!is_zb && (tex->b.b.height0 == 1 || dbg_no_tiling)) { + return; + } + + /* Set microtiling. */ + switch (util_format_get_blocksize(format)) { + case 1: + case 4: + tex->microtile = R300_BUFFER_TILED; + break; + + case 2: + case 8: + if (rws->get_value(rws, R300_VID_SQUARE_TILING_SUPPORT)) { + tex->microtile = R300_BUFFER_SQUARETILED; + } + break; + } + + if (dbg_no_tiling) { + return; + } + + /* Set macrotiling. */ + if (r300_texture_macro_switch(tex, 0, rv350_mode, DIM_WIDTH) && + r300_texture_macro_switch(tex, 0, rv350_mode, DIM_HEIGHT)) { + tex->macrotile = R300_BUFFER_TILED; + } +} + +static unsigned r300_texture_is_referenced(struct pipe_context *context, + struct pipe_resource *texture, + unsigned face, unsigned level) +{ + struct r300_context *r300 = r300_context(context); + struct r300_texture *rtex = (struct r300_texture *)texture; + + if (r300->rws->is_buffer_referenced(r300->rws, rtex->buffer, R300_REF_CS)) + return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE; + + return PIPE_UNREFERENCED; +} + +static void r300_texture_destroy(struct pipe_screen *screen, + struct pipe_resource* texture) +{ + struct r300_texture* tex = (struct r300_texture*)texture; + struct r300_winsys_screen *rws = (struct r300_winsys_screen *)texture->screen->winsys; + + rws->buffer_reference(rws, &tex->buffer, NULL); + FREE(tex); +} + +static boolean r300_texture_get_handle(struct pipe_screen* screen, + struct pipe_resource *texture, + struct winsys_handle *whandle) +{ + struct r300_winsys_screen *rws = (struct r300_winsys_screen *)screen->winsys; + struct r300_texture* tex = (struct r300_texture*)texture; + + if (!tex) { + return FALSE; + } + + whandle->stride = r300_texture_get_stride(r300_screen(screen), tex, 0); + + return rws->buffer_get_handle(rws, tex->buffer, whandle); +} + +struct u_resource_vtbl r300_texture_vtbl = +{ + r300_texture_get_handle, /* get_handle */ + r300_texture_destroy, /* resource_destroy */ + r300_texture_is_referenced, /* is_resource_referenced */ + r300_texture_get_transfer, /* get_transfer */ + r300_texture_transfer_destroy, /* transfer_destroy */ + r300_texture_transfer_map, /* transfer_map */ + u_default_transfer_flush_region, /* transfer_flush_region */ + r300_texture_transfer_unmap, /* transfer_unmap */ + u_default_transfer_inline_write /* transfer_inline_write */ +}; + +/* Create a new texture. */ +struct pipe_resource* r300_texture_create(struct pipe_screen* screen, + const struct pipe_resource* base) +{ + struct r300_texture* tex = CALLOC_STRUCT(r300_texture); + struct r300_screen* rscreen = r300_screen(screen); + struct r300_winsys_screen *rws = (struct r300_winsys_screen *)screen->winsys; + + if (!tex) { + return NULL; + } + + /* Refuse to create a texture with size 0. */ + if (!base->width0 || + (!base->height0 && (base->target == PIPE_TEXTURE_2D || + base->target == PIPE_TEXTURE_CUBE)) || + (!base->depth0 && base->target == PIPE_TEXTURE_3D)) { + fprintf(stderr, "r300: texture_create: " + "Got invalid texture dimensions: %ix%ix%i\n", + base->width0, base->height0, base->depth0); + FREE(tex); + return NULL; + } + + tex->b.b = *base; + tex->b.vtbl = &r300_texture_vtbl; + pipe_reference_init(&tex->b.b.reference, 1); + tex->b.b.screen = screen; + + r300_setup_flags(tex); + if (!(base->flags & R300_RESOURCE_FLAG_TRANSFER) && + !(base->bind & PIPE_BIND_SCANOUT)) { + r300_setup_tiling(screen, tex); + } + r300_setup_miptree(rscreen, tex); + r300_texture_3d_fix_mipmapping(rscreen, tex); + r300_texture_setup_immutable_state(rscreen, tex); + r300_texture_setup_fb_state(rscreen, tex); + + SCREEN_DBG(rscreen, DBG_TEX, + "r300: texture_create: Macro: %s, Micro: %s, Pitch: %i, " + "Dim: %ix%ix%i, LastLevel: %i, Size: %i, Format: %s\n", + tex->macrotile ? "YES" : " NO", + tex->microtile ? "YES" : " NO", + tex->hwpitch[0], + base->width0, base->height0, base->depth0, base->last_level, + tex->size, + util_format_short_name(base->format)); + + tex->domain = base->flags & R300_RESOURCE_FLAG_TRANSFER ? R300_DOMAIN_GTT : + R300_DOMAIN_VRAM; + + tex->buffer = rws->buffer_create(rws, 2048, base->bind, tex->domain, + tex->size); + + if (!tex->buffer) { + FREE(tex); + return NULL; + } + + rws->buffer_set_tiling(rws, tex->buffer, + tex->pitch[0] * util_format_get_blocksize(tex->b.b.format), + tex->microtile, + tex->macrotile); + + return (struct pipe_resource*)tex; +} + +/* Not required to implement u_resource_vtbl, consider moving to another file: + */ +struct pipe_surface* r300_get_tex_surface(struct pipe_screen* screen, + struct pipe_resource* texture, + unsigned face, + unsigned level, + unsigned zslice, + unsigned flags) +{ + struct r300_texture* tex = r300_texture(texture); + struct r300_surface* surface = CALLOC_STRUCT(r300_surface); + + if (surface) { + pipe_reference_init(&surface->base.reference, 1); + pipe_resource_reference(&surface->base.texture, texture); + surface->base.format = texture->format; + surface->base.width = u_minify(texture->width0, level); + surface->base.height = u_minify(texture->height0, level); + surface->base.usage = flags; + surface->base.zslice = zslice; + surface->base.face = face; + surface->base.level = level; + + surface->buffer = tex->buffer; + surface->domain = tex->domain; + surface->offset = r300_texture_get_offset(tex, level, zslice, face); + surface->pitch = tex->fb_state.pitch[level]; + surface->format = tex->fb_state.format; + } + + return &surface->base; +} + +/* Not required to implement u_resource_vtbl, consider moving to another file: + */ +void r300_tex_surface_destroy(struct pipe_surface* s) +{ + pipe_resource_reference(&s->texture, NULL); + FREE(s); +} + +struct pipe_resource* +r300_texture_from_handle(struct pipe_screen* screen, + const struct pipe_resource* base, + struct winsys_handle *whandle) +{ + struct r300_winsys_screen *rws = (struct r300_winsys_screen*)screen->winsys; + struct r300_screen* rscreen = r300_screen(screen); + struct r300_winsys_buffer *buffer; + struct r300_texture* tex; + boolean override_zb_flags; + + /* Support only 2D textures without mipmaps */ + if (base->target != PIPE_TEXTURE_2D || + base->depth0 != 1 || + base->last_level != 0) { + return NULL; + } + + buffer = rws->buffer_from_handle(rws, whandle->handle); + if (!buffer) { + return NULL; + } + + tex = CALLOC_STRUCT(r300_texture); + if (!tex) { + return NULL; + } + + tex->b.b = *base; + tex->b.vtbl = &r300_texture_vtbl; + pipe_reference_init(&tex->b.b.reference, 1); + tex->b.b.screen = screen; + tex->domain = R300_DOMAIN_VRAM; + + tex->stride_override = whandle->stride; + + /* one ref already taken */ + tex->buffer = buffer; + + rws->buffer_get_tiling(rws, buffer, &tex->microtile, &tex->macrotile); + r300_setup_flags(tex); + SCREEN_DBG(rscreen, DBG_TEX, + "r300: texture_from_handle: Macro: %s, Micro: %s, " + "Pitch: % 4i, Dim: %ix%i, Format: %s\n", + tex->macrotile ? "YES" : " NO", + tex->microtile ? "YES" : " NO", + whandle->stride / util_format_get_blocksize(base->format), + base->width0, base->height0, + util_format_short_name(base->format)); + + /* Enforce microtiled zbuffer. */ + override_zb_flags = util_format_is_depth_or_stencil(base->format) && + tex->microtile == R300_BUFFER_LINEAR; + + if (override_zb_flags) { + switch (util_format_get_blocksize(base->format)) { + case 4: + tex->microtile = R300_BUFFER_TILED; + break; + + case 2: + if (rws->get_value(rws, R300_VID_SQUARE_TILING_SUPPORT)) { + tex->microtile = R300_BUFFER_SQUARETILED; + break; + } + /* Pass through. */ + + default: + override_zb_flags = FALSE; + } + } + + r300_setup_miptree(rscreen, tex); + r300_texture_setup_immutable_state(rscreen, tex); + r300_texture_setup_fb_state(rscreen, tex); + + if (override_zb_flags) { + rws->buffer_set_tiling(rws, tex->buffer, + tex->pitch[0] * util_format_get_blocksize(tex->b.b.format), + tex->microtile, + tex->macrotile); + } + return (struct pipe_resource*)tex; +} |