void r300SetTexOffset(__DRIcontext * pDRICtx, GLint texname,
unsigned long long offset, GLint depth, GLuint pitch)
{
r300ContextPtr rmesa = pDRICtx->driverPrivate;
struct gl_texture_object *tObj =
_mesa_lookup_texture(rmesa->radeon.glCtx, texname);
radeonTexObjPtr t = radeon_tex_obj(tObj);
uint32_t pitch_val;
if (!tObj)
return;
t->image_override = GL_TRUE;
if (!offset)
return;
t->bo = NULL;
t->override_offset = offset;
t->pp_txpitch &= (1 << 13) -1;
pitch_val = pitch;
switch (depth) {
case 32:
t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8);
t->pp_txfilter |= tx_table[2].filter;
pitch_val /= 4;
break;
case 24:
default:
t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, ONE, W8Z8Y8X8);
t->pp_txfilter |= tx_table[4].filter;
pitch_val /= 4;
break;
case 16:
t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, ONE, Z5Y6X5);
t->pp_txfilter |= tx_table[5].filter;
pitch_val /= 2;
break;
}
pitch_val--;
t->pp_txpitch |= pitch_val;
}
/* 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_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:
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:;
}
}
result |= r300_get_swizzle_combined(desc->swizzle, swizzle_view,
util_format_is_compressed(format) && dxtc_swizzle);
/* 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. */
}
void r300SetTexBuffer2(__DRIcontext *pDRICtx, GLint target, GLint glx_texture_format, __DRIdrawable *dPriv)
{
struct gl_texture_unit *texUnit;
struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
struct radeon_renderbuffer *rb;
radeon_texture_image *rImage;
radeonContextPtr radeon;
r300ContextPtr rmesa;
struct radeon_framebuffer *rfb;
radeonTexObjPtr t;
uint32_t pitch_val;
uint32_t internalFormat, type, format;
type = GL_BGRA;
format = GL_UNSIGNED_BYTE;
internalFormat = (glx_texture_format == GLX_TEXTURE_FORMAT_RGB_EXT ? 3 : 4);
radeon = pDRICtx->driverPrivate;
rmesa = pDRICtx->driverPrivate;
rfb = dPriv->driverPrivate;
texUnit = &radeon->glCtx->Texture.Unit[radeon->glCtx->Texture.CurrentUnit];
texObj = _mesa_select_tex_object(radeon->glCtx, texUnit, target);
texImage = _mesa_get_tex_image(radeon->glCtx, texObj, target, 0);
rImage = get_radeon_texture_image(texImage);
t = radeon_tex_obj(texObj);
if (t == NULL) {
return;
}
radeon_update_renderbuffers(pDRICtx, dPriv);
/* back & depth buffer are useless free them right away */
rb = (void*)rfb->base.Attachment[BUFFER_DEPTH].Renderbuffer;
if (rb && rb->bo) {
radeon_bo_unref(rb->bo);
rb->bo = NULL;
}
rb = (void*)rfb->base.Attachment[BUFFER_BACK_LEFT].Renderbuffer;
if (rb && rb->bo) {
radeon_bo_unref(rb->bo);
rb->bo = NULL;
}
rb = rfb->color_rb[0];
if (rb->bo == NULL) {
/* Failed to BO for the buffer */
return;
}
_mesa_lock_texture(radeon->glCtx, texObj);
if (t->bo) {
radeon_bo_unref(t->bo);
t->bo = NULL;
}
if (rImage->bo) {
radeon_bo_unref(rImage->bo);
rImage->bo = NULL;
}
radeon_miptree_unreference(&t->mt);
radeon_miptree_unreference(&rImage->mt);
_mesa_init_teximage_fields(radeon->glCtx, target, texImage,
rb->base.Width, rb->base.Height, 1, 0, rb->cpp);
texImage->RowStride = rb->pitch / rb->cpp;
rImage->bo = rb->bo;
radeon_bo_ref(rImage->bo);
t->bo = rb->bo;
radeon_bo_ref(t->bo);
t->tile_bits = 0;
t->image_override = GL_TRUE;
t->override_offset = 0;
t->pp_txpitch &= (1 << 13) -1;
pitch_val = rb->pitch;
switch (rb->cpp) {
case 4:
if (glx_texture_format == GLX_TEXTURE_FORMAT_RGB_EXT)
t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, ONE, W8Z8Y8X8);
else
t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8);
t->pp_txfilter |= tx_table[2].filter;
pitch_val /= 4;
break;
case 3:
default:
t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, ONE, W8Z8Y8X8);
t->pp_txfilter |= tx_table[4].filter;
pitch_val /= 4;
break;
case 2:
t->pp_txformat = R300_EASY_TX_FORMAT(X, Y, Z, ONE, Z5Y6X5);
t->pp_txfilter |= tx_table[5].filter;
pitch_val /= 2;
break;
}
pitch_val--;
t->pp_txsize = (((R300_TX_WIDTHMASK_MASK & ((rb->base.Width - 1) << R300_TX_WIDTHMASK_SHIFT)))
| ((R300_TX_HEIGHTMASK_MASK & ((rb->base.Height - 1) << R300_TX_HEIGHTMASK_SHIFT))));
t->pp_txsize |= R300_TX_SIZE_TXPITCH_EN;
t->pp_txpitch |= pitch_val;
if (rmesa->radeon.radeonScreen->chip_family >= CHIP_FAMILY_RV515) {
if (rb->base.Width > 2048)
t->pp_txpitch |= R500_TXWIDTH_BIT11;
else
t->pp_txpitch &= ~R500_TXWIDTH_BIT11;
if (rb->base.Height > 2048)
t->pp_txpitch |= R500_TXHEIGHT_BIT11;
else
t->pp_txpitch &= ~R500_TXHEIGHT_BIT11;
}
t->validated = GL_TRUE;
_mesa_unlock_texture(radeon->glCtx, texObj);
return;
}
void r300SetDepthTexMode(struct gl_texture_object *tObj)
{
static const GLuint formats[3][3] = {
{
R300_EASY_TX_FORMAT(X, X, X, ONE, X16),
R300_EASY_TX_FORMAT(X, X, X, X, X16),
R300_EASY_TX_FORMAT(ZERO, ZERO, ZERO, X, X16),
},
{
R300_EASY_TX_FORMAT(Y, Y, Y, ONE, X24_Y8),
R300_EASY_TX_FORMAT(Y, Y, Y, Y, X24_Y8),
R300_EASY_TX_FORMAT(ZERO, ZERO, ZERO, Y, X24_Y8),
},
{
R300_EASY_TX_FORMAT(X, X, X, ONE, X32),
R300_EASY_TX_FORMAT(X, X, X, X, X32),
R300_EASY_TX_FORMAT(ZERO, ZERO, ZERO, X, X32),
},
};
const GLuint *format;
radeonTexObjPtr t;
if (!tObj)
return;
t = radeon_tex_obj(tObj);
switch (tObj->Image[0][tObj->BaseLevel]->TexFormat) {
case MESA_FORMAT_Z16:
format = formats[0];
break;
case MESA_FORMAT_S8_Z24:
format = formats[1];
break;
case MESA_FORMAT_Z32:
format = formats[2];
break;
default:
/* Error...which should have already been caught by higher
* levels of Mesa.
*/
ASSERT(0);
return;
}
switch (tObj->DepthMode) {
case GL_LUMINANCE:
t->pp_txformat = format[0];
break;
case GL_INTENSITY:
t->pp_txformat = format[1];
break;
case GL_ALPHA:
t->pp_txformat = format[2];
break;
default:
/* Error...which should have already been caught by higher
* levels of Mesa.
*/
ASSERT(0);
return;
}
}
/*
* Note that the _REV formats are the same as the non-REV formats. This is
* because the REV and non-REV formats are identical as a byte string, but
* differ when accessed as 16-bit or 32-bit words depending on the endianness of
* the host. Since the textures are transferred to the R300 as a byte string
* (i.e. without any byte-swapping), the R300 sees the REV and non-REV formats
* identically. -- paulus
*/
static const struct tx_table {
GLuint format, filter, flag;
} tx_table[] = {
/* *INDENT-OFF* */
#ifdef MESA_LITTLE_ENDIAN
_ASSIGN(RGBA8888, R300_EASY_TX_FORMAT(Y, Z, W, X, W8Z8Y8X8)),
_ASSIGN(RGBA8888_REV, R300_EASY_TX_FORMAT(Z, Y, X, W, W8Z8Y8X8)),
_ASSIGN(ARGB8888, R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8)),
_ASSIGN(ARGB8888_REV, R300_EASY_TX_FORMAT(W, Z, Y, X, W8Z8Y8X8)),
#else
_ASSIGN(RGBA8888, R300_EASY_TX_FORMAT(Z, Y, X, W, W8Z8Y8X8)),
_ASSIGN(RGBA8888_REV, R300_EASY_TX_FORMAT(Y, Z, W, X, W8Z8Y8X8)),
_ASSIGN(ARGB8888, R300_EASY_TX_FORMAT(W, Z, Y, X, W8Z8Y8X8)),
_ASSIGN(ARGB8888_REV, R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8)),
#endif
_ASSIGN(XRGB8888, R300_EASY_TX_FORMAT(X, Y, Z, ONE, W8Z8Y8X8)),
_ASSIGN(RGB888, R300_EASY_TX_FORMAT(X, Y, Z, ONE, W8Z8Y8X8)),
_ASSIGN(RGB565, R300_EASY_TX_FORMAT(X, Y, Z, ONE, Z5Y6X5)),
_ASSIGN(RGB565_REV, R300_EASY_TX_FORMAT(X, Y, Z, ONE, Z5Y6X5)),
_ASSIGN(ARGB4444, R300_EASY_TX_FORMAT(X, Y, Z, W, W4Z4Y4X4)),
_ASSIGN(ARGB4444_REV, R300_EASY_TX_FORMAT(X, Y, Z, W, W4Z4Y4X4)),
/* 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. */
static uint32_t r300_translate_texformat(enum pipe_format format)
{
uint32_t result = 0;
const struct util_format_description *desc;
unsigned components = 0, i;
boolean uniform = TRUE;
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[4] = {
R300_TX_FORMAT_X,
R300_TX_FORMAT_Y,
R300_TX_FORMAT_Z,
R300_TX_FORMAT_W
};
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. */
case UTIL_FORMAT_COLORSPACE_ZS:
switch (format) {
case PIPE_FORMAT_Z16_UNORM:
return R300_EASY_TX_FORMAT(X, X, X, X, X16);
case PIPE_FORMAT_X8Z24_UNORM:
case PIPE_FORMAT_S8Z24_UNORM:
return R300_EASY_TX_FORMAT(X, X, X, X, W24_FP);
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:
;
}
/* Add swizzle. */
for (i = 0; i < 4; i++) {
switch (desc->swizzle[i]) {
case UTIL_FORMAT_SWIZZLE_X:
case UTIL_FORMAT_SWIZZLE_NONE:
result |= swizzle[0] << swizzle_shift[i];
break;
case UTIL_FORMAT_SWIZZLE_Y:
result |= swizzle[1] << swizzle_shift[i];
break;
case UTIL_FORMAT_SWIZZLE_Z:
result |= swizzle[2] << swizzle_shift[i];
break;
case UTIL_FORMAT_SWIZZLE_W:
result |= swizzle[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:
return ~0; /* Unsupported. */
}
}
/* Compressed formats. */
if (desc->layout == UTIL_FORMAT_LAYOUT_COMPRESSED) {
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. */
}
}
/* Get the number of components. */
for (i = 0; i < 4; i++) {
if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
++components;
}
}
/* Add sign. */
for (i = 0; i < components; 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 < components; i++) {
uniform = uniform && desc->channel[0].size == desc->channel[i].size;
}
/* Non-uniform formats. */
if (!uniform) {
switch (components) {
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 (components) {
case 2:
return R300_TX_FORMAT_Y4X4 | result;
case 4:
return R300_TX_FORMAT_W4Z4Y4X4 | result;
}
return ~0;
case 8:
switch (components) {
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 (components) {
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;
/* XXX Enable float textures here. */
#if 0
case UTIL_FORMAT_TYPE_FLOAT:
switch (desc->channel[0].size) {
case 16:
switch (components) {
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 (components) {
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;
}
}
#endif
}
return ~0; /* Unsupported/unknown. */
}