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Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_bld_format_aos.c')
-rw-r--r--src/gallium/drivers/llvmpipe/lp_bld_format_aos.c383
1 files changed, 0 insertions, 383 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_format_aos.c b/src/gallium/drivers/llvmpipe/lp_bld_format_aos.c
deleted file mode 100644
index dfa080b8533..00000000000
--- a/src/gallium/drivers/llvmpipe/lp_bld_format_aos.c
+++ /dev/null
@@ -1,383 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * 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 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 VMWARE AND/OR ITS 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.
- *
- **************************************************************************/
-
-/**
- * @file
- * AoS pixel format manipulation.
- *
- * @author Jose Fonseca <[email protected]>
- */
-
-
-#include "util/u_cpu_detect.h"
-#include "util/u_format.h"
-
-#include "lp_bld_type.h"
-#include "lp_bld_const.h"
-#include "lp_bld_swizzle.h"
-#include "lp_bld_format.h"
-
-
-/**
- * Unpack a single pixel into its RGBA components.
- *
- * @param packed integer.
- *
- * @return RGBA in a 4 floats vector.
- *
- * XXX: This is mostly for reference and testing -- operating a single pixel at
- * a time is rarely if ever needed.
- */
-LLVMValueRef
-lp_build_unpack_rgba_aos(LLVMBuilderRef builder,
- const struct util_format_description *desc,
- LLVMValueRef packed)
-{
- LLVMTypeRef type;
- LLVMValueRef shifted, casted, scaled, masked;
- LLVMValueRef shifts[4];
- LLVMValueRef masks[4];
- LLVMValueRef scales[4];
- LLVMValueRef swizzles[4];
- LLVMValueRef aux[4];
- bool normalized;
- int empty_channel;
- unsigned shift;
- unsigned i;
-
- /* FIXME: Support more formats */
- assert(desc->layout == UTIL_FORMAT_LAYOUT_ARITH);
- assert(desc->block.width == 1);
- assert(desc->block.height == 1);
- assert(desc->block.bits <= 32);
-
- type = LLVMIntType(desc->block.bits);
-
- /* Do the intermediate integer computations with 32bit integers since it
- * matches floating point size */
- if (desc->block.bits < 32)
- packed = LLVMBuildZExt(builder, packed, LLVMInt32Type(), "");
-
- /* Broadcast the packed value to all four channels */
- packed = LLVMBuildInsertElement(builder,
- LLVMGetUndef(LLVMVectorType(LLVMInt32Type(), 4)),
- packed,
- LLVMConstNull(LLVMInt32Type()),
- "");
- packed = LLVMBuildShuffleVector(builder,
- packed,
- LLVMGetUndef(LLVMVectorType(LLVMInt32Type(), 4)),
- LLVMConstNull(LLVMVectorType(LLVMInt32Type(), 4)),
- "");
-
- /* Initialize vector constants */
- normalized = FALSE;
- empty_channel = -1;
- shift = 0;
- for (i = 0; i < 4; ++i) {
- unsigned bits = desc->channel[i].size;
-
- if (desc->channel[i].type == UTIL_FORMAT_TYPE_VOID) {
- shifts[i] = LLVMGetUndef(LLVMInt32Type());
- masks[i] = LLVMConstNull(LLVMInt32Type());
- scales[i] = LLVMConstNull(LLVMFloatType());
- empty_channel = i;
- }
- else {
- unsigned mask = (1 << bits) - 1;
-
- assert(desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED);
- assert(bits < 32);
-
- shifts[i] = LLVMConstInt(LLVMInt32Type(), shift, 0);
- masks[i] = LLVMConstInt(LLVMInt32Type(), mask, 0);
-
- if (desc->channel[i].normalized) {
- scales[i] = LLVMConstReal(LLVMFloatType(), 1.0/mask);
- normalized = TRUE;
- }
- else
- scales[i] = LLVMConstReal(LLVMFloatType(), 1.0);
- }
-
- shift += bits;
- }
-
- shifted = LLVMBuildLShr(builder, packed, LLVMConstVector(shifts, 4), "");
- masked = LLVMBuildAnd(builder, shifted, LLVMConstVector(masks, 4), "");
- /* UIToFP can't be expressed in SSE2 */
- casted = LLVMBuildSIToFP(builder, masked, LLVMVectorType(LLVMFloatType(), 4), "");
-
- if (normalized)
- scaled = LLVMBuildMul(builder, casted, LLVMConstVector(scales, 4), "");
- else
- scaled = casted;
-
- for (i = 0; i < 4; ++i)
- aux[i] = LLVMGetUndef(LLVMFloatType());
-
- for (i = 0; i < 4; ++i) {
- enum util_format_swizzle swizzle = desc->swizzle[i];
-
- switch (swizzle) {
- case UTIL_FORMAT_SWIZZLE_X:
- case UTIL_FORMAT_SWIZZLE_Y:
- case UTIL_FORMAT_SWIZZLE_Z:
- case UTIL_FORMAT_SWIZZLE_W:
- swizzles[i] = LLVMConstInt(LLVMInt32Type(), swizzle, 0);
- break;
- case UTIL_FORMAT_SWIZZLE_0:
- assert(empty_channel >= 0);
- swizzles[i] = LLVMConstInt(LLVMInt32Type(), empty_channel, 0);
- break;
- case UTIL_FORMAT_SWIZZLE_1:
- swizzles[i] = LLVMConstInt(LLVMInt32Type(), 4, 0);
- aux[0] = LLVMConstReal(LLVMFloatType(), 1.0);
- break;
- case UTIL_FORMAT_SWIZZLE_NONE:
- swizzles[i] = LLVMGetUndef(LLVMFloatType());
- assert(0);
- break;
- }
- }
-
- return LLVMBuildShuffleVector(builder, scaled, LLVMConstVector(aux, 4), LLVMConstVector(swizzles, 4), "");
-}
-
-
-/**
- * Take a vector with packed pixels and unpack into a rgba8 vector.
- *
- * Formats with bit depth smaller than 32bits are accepted, but they must be
- * padded to 32bits.
- */
-LLVMValueRef
-lp_build_unpack_rgba8_aos(LLVMBuilderRef builder,
- const struct util_format_description *desc,
- struct lp_type type,
- LLVMValueRef packed)
-{
- struct lp_build_context bld;
- bool rgba8;
- LLVMValueRef res;
- unsigned i;
-
- lp_build_context_init(&bld, builder, type);
-
- /* FIXME: Support more formats */
- assert(desc->layout == UTIL_FORMAT_LAYOUT_ARITH);
- assert(desc->block.width == 1);
- assert(desc->block.height == 1);
- assert(desc->block.bits <= 32);
-
- assert(!type.floating);
- assert(!type.fixed);
- assert(type.norm);
- assert(type.width == 8);
- assert(type.length % 4 == 0);
-
- rgba8 = TRUE;
- for(i = 0; i < 4; ++i) {
- assert(desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED ||
- desc->channel[i].type == UTIL_FORMAT_TYPE_VOID);
- if(desc->channel[0].size != 8)
- rgba8 = FALSE;
- }
-
- if(rgba8) {
- /*
- * The pixel is already in a rgba8 format variant. All it is necessary
- * is to swizzle the channels.
- */
-
- unsigned char swizzles[4];
- boolean zeros[4]; /* bitwise AND mask */
- boolean ones[4]; /* bitwise OR mask */
- boolean swizzles_needed = FALSE;
- boolean zeros_needed = FALSE;
- boolean ones_needed = FALSE;
-
- for(i = 0; i < 4; ++i) {
- enum util_format_swizzle swizzle = desc->swizzle[i];
-
- /* Initialize with the no-op case */
- swizzles[i] = util_cpu_caps.little_endian ? 3 - i : i;
- zeros[i] = TRUE;
- ones[i] = FALSE;
-
- switch (swizzle) {
- case UTIL_FORMAT_SWIZZLE_X:
- case UTIL_FORMAT_SWIZZLE_Y:
- case UTIL_FORMAT_SWIZZLE_Z:
- case UTIL_FORMAT_SWIZZLE_W:
- if(swizzle != swizzles[i]) {
- swizzles[i] = swizzle;
- swizzles_needed = TRUE;
- }
- break;
- case UTIL_FORMAT_SWIZZLE_0:
- zeros[i] = FALSE;
- zeros_needed = TRUE;
- break;
- case UTIL_FORMAT_SWIZZLE_1:
- ones[i] = TRUE;
- ones_needed = TRUE;
- break;
- case UTIL_FORMAT_SWIZZLE_NONE:
- assert(0);
- break;
- }
- }
-
- res = packed;
-
- if(swizzles_needed)
- res = lp_build_swizzle1_aos(&bld, res, swizzles);
-
- if(zeros_needed) {
- /* Mask out zero channels */
- LLVMValueRef mask = lp_build_const_mask_aos(type, zeros);
- res = LLVMBuildAnd(builder, res, mask, "");
- }
-
- if(ones_needed) {
- /* Or one channels */
- LLVMValueRef mask = lp_build_const_mask_aos(type, ones);
- res = LLVMBuildOr(builder, res, mask, "");
- }
- }
- else {
- /* FIXME */
- assert(0);
- res = lp_build_undef(type);
- }
-
- return res;
-}
-
-
-/**
- * Pack a single pixel.
- *
- * @param rgba 4 float vector with the unpacked components.
- *
- * XXX: This is mostly for reference and testing -- operating a single pixel at
- * a time is rarely if ever needed.
- */
-LLVMValueRef
-lp_build_pack_rgba_aos(LLVMBuilderRef builder,
- const struct util_format_description *desc,
- LLVMValueRef rgba)
-{
- LLVMTypeRef type;
- LLVMValueRef packed = NULL;
- LLVMValueRef swizzles[4];
- LLVMValueRef shifted, casted, scaled, unswizzled;
- LLVMValueRef shifts[4];
- LLVMValueRef scales[4];
- bool normalized;
- unsigned shift;
- unsigned i, j;
-
- assert(desc->layout == UTIL_FORMAT_LAYOUT_ARITH);
- assert(desc->block.width == 1);
- assert(desc->block.height == 1);
-
- type = LLVMIntType(desc->block.bits);
-
- /* Unswizzle the color components into the source vector. */
- for (i = 0; i < 4; ++i) {
- for (j = 0; j < 4; ++j) {
- if (desc->swizzle[j] == i)
- break;
- }
- if (j < 4)
- swizzles[i] = LLVMConstInt(LLVMInt32Type(), j, 0);
- else
- swizzles[i] = LLVMGetUndef(LLVMInt32Type());
- }
-
- unswizzled = LLVMBuildShuffleVector(builder, rgba,
- LLVMGetUndef(LLVMVectorType(LLVMFloatType(), 4)),
- LLVMConstVector(swizzles, 4), "");
-
- normalized = FALSE;
- shift = 0;
- for (i = 0; i < 4; ++i) {
- unsigned bits = desc->channel[i].size;
-
- if (desc->channel[i].type == UTIL_FORMAT_TYPE_VOID) {
- shifts[i] = LLVMGetUndef(LLVMInt32Type());
- scales[i] = LLVMGetUndef(LLVMFloatType());
- }
- else {
- unsigned mask = (1 << bits) - 1;
-
- assert(desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED);
- assert(bits < 32);
-
- shifts[i] = LLVMConstInt(LLVMInt32Type(), shift, 0);
-
- if (desc->channel[i].normalized) {
- scales[i] = LLVMConstReal(LLVMFloatType(), mask);
- normalized = TRUE;
- }
- else
- scales[i] = LLVMConstReal(LLVMFloatType(), 1.0);
- }
-
- shift += bits;
- }
-
- if (normalized)
- scaled = LLVMBuildMul(builder, unswizzled, LLVMConstVector(scales, 4), "");
- else
- scaled = unswizzled;
-
- casted = LLVMBuildFPToSI(builder, scaled, LLVMVectorType(LLVMInt32Type(), 4), "");
-
- shifted = LLVMBuildShl(builder, casted, LLVMConstVector(shifts, 4), "");
-
- /* Bitwise or all components */
- for (i = 0; i < 4; ++i) {
- if (desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED) {
- LLVMValueRef component = LLVMBuildExtractElement(builder, shifted, LLVMConstInt(LLVMInt32Type(), i, 0), "");
- if (packed)
- packed = LLVMBuildOr(builder, packed, component, "");
- else
- packed = component;
- }
- }
-
- if (!packed)
- packed = LLVMGetUndef(LLVMInt32Type());
-
- if (desc->block.bits < 32)
- packed = LLVMBuildTrunc(builder, packed, type, "");
-
- return packed;
-}
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