diff options
Diffstat (limited to 'src/opts/SkBlitRow_opts_SSE4_asm.S')
-rw-r--r-- | src/opts/SkBlitRow_opts_SSE4_asm.S | 475 |
1 files changed, 0 insertions, 475 deletions
diff --git a/src/opts/SkBlitRow_opts_SSE4_asm.S b/src/opts/SkBlitRow_opts_SSE4_asm.S deleted file mode 100644 index 0f5281713d..0000000000 --- a/src/opts/SkBlitRow_opts_SSE4_asm.S +++ /dev/null @@ -1,475 +0,0 @@ -/* - * Copyright 2014 The Android Open Source Project - * - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#ifdef CRBUG_399842_FIXED - -#if defined(__clang__) || (defined(__GNUC__) && !defined(SK_BUILD_FOR_MAC)) - -#define CFI_PUSH(REG) \ - .cfi_adjust_cfa_offset 4; \ - .cfi_rel_offset REG, 0 - -#define CFI_POP(REG) \ - .cfi_adjust_cfa_offset -4; \ - .cfi_restore REG - -#define PUSH(REG) pushl REG; CFI_PUSH (REG) -#define POP(REG) popl REG; CFI_POP (REG) -#define RETURN POP(%edi); ret - -#define EXTRACT_ALPHA(var1, var2) \ - movdqa %var1, %var2; /* Clone source pixels to extract alpha */\ - psrlw $8, %var2; /* Discard red and blue, leaving alpha and green */\ - pshufhw $0xF5, %var2, %var2; /* Repeat alpha for scaling (high) */\ - movdqa %xmm6, %xmm4; \ - pshuflw $0xF5, %var2, %var2; /* Repeat alpha for scaling (low) */\ - movdqa %xmm5, %xmm3; \ - psubw %var2, %xmm4 /* Finalize alpha calculations */ - -#define SCALE_PIXELS \ - psllw $8, %xmm5; /* Filter out red and blue components */\ - pmulhuw %xmm4, %xmm5; /* Scale red and blue */\ - psrlw $8, %xmm3; /* Filter out alpha and green components */\ - pmullw %xmm4, %xmm3 /* Scale alpha and green */ - - -/* - * void S32A_Opaque_BlitRow32_SSE4(SkPMColor* SK_RESTRICT dst, - * const SkPMColor* SK_RESTRICT src, - * int count, U8CPU alpha) - * - * This function is divided into six blocks: initialization, blit 4-15 pixels, - * blit 0-3 pixels, align destination for 16+ pixel blits, - * blit 16+ pixels with source unaligned, blit 16+ pixels with source aligned. - * There are some code reuse between the blocks. - * - * The primary optimization comes from checking the source pixels' alpha value. - * If the alpha is zero, the pixel can be skipped entirely. - * If the alpha is fully opaque, the pixel can be copied directly to the destination. - * According to collected statistics, these two cases are the most common. - * The main loop(s) uses pre-loading and unrolling in an attempt to reduce the - * memory latency worse-case. - */ - -#ifdef __clang__ - .text -#else - .section .text.sse4.2,"ax",@progbits - .type S32A_Opaque_BlitRow32_SSE4_asm, @function -#endif - .p2align 4 -#if defined(SK_BUILD_FOR_MAC) - .global _S32A_Opaque_BlitRow32_SSE4_asm - .private_extern _S32A_Opaque_BlitRow32_SSE4_asm -_S32A_Opaque_BlitRow32_SSE4_asm: -#else - .global S32A_Opaque_BlitRow32_SSE4_asm - .hidden S32A_Opaque_BlitRow32_SSE4_asm -S32A_Opaque_BlitRow32_SSE4_asm: -#endif - .cfi_startproc - movl 8(%esp), %eax // Source pointer - movl 12(%esp), %ecx // Pixel count - movl 4(%esp), %edx // Destination pointer - prefetcht0 (%eax) - - // Setup SSE constants - pcmpeqd %xmm7, %xmm7 // 0xFF000000 mask to check alpha - pslld $24, %xmm7 - pcmpeqw %xmm6, %xmm6 // 16-bit 256 to calculate inv. alpha - psrlw $15, %xmm6 - psllw $8, %xmm6 - pcmpeqw %xmm0, %xmm0 // 0x00FF00FF mask (Must be in xmm0 because of pblendvb) - psrlw $8, %xmm0 - subl $4, %ecx // Check if we have only 0-3 pixels - js .LReallySmall - PUSH(%edi) - cmpl $11, %ecx // Do we have enough pixels to run the main loop? - ja .LBigBlit - - // Handle small blits (4-15 pixels) - //////////////////////////////////////////////////////////////////////////////// - xorl %edi, %edi // Reset offset to zero - -.LSmallLoop: - lddqu (%eax, %edi), %xmm1 // Load four source pixels - ptest %xmm7, %xmm1 // Check if all alphas are zero or opaque - ja .LSmallAlphaNotOpaqueOrZero - jz .LSmallAlphaZero // If all alphas are zero, skip the pixels completely - movdqu %xmm1, (%edx, %edi) // Store four destination pixels -.LSmallAlphaZero: - addl $16, %edi - subl $4, %ecx // Check if there are four additional pixels, at least - jns .LSmallLoop - jmp .LSmallRemaining - - // Handle mixed alphas (calculate and scale) - .p2align 4 -.LSmallAlphaNotOpaqueOrZero: - lddqu (%edx, %edi), %xmm5 // Load four destination pixels - EXTRACT_ALPHA(xmm1, xmm2) // Extract and clone alpha value - SCALE_PIXELS // Scale pixels using alpha - - addl $16, %edi - subl $4, %ecx // Check if there are four additional pixels, at least - pblendvb %xmm5, %xmm3 // Mask in %xmm0, implicitly - paddb %xmm3, %xmm1 // Add source and destination pixels together - movdqu %xmm1, -16(%edx, %edi) // Store four destination pixels - jns .LSmallLoop - - // Handle the last 0-3 pixels (also used by the main loops) -.LSmallRemaining: - cmpl $-4, %ecx // Check if we are done - je .LSmallExit - sall $2, %ecx // Calculate offset for last pixels - addl %ecx, %edi - - lddqu (%eax, %edi), %xmm1 // Load last four source pixels (overlapping) - ptest %xmm7, %xmm1 // Check if all alphas are zero or opaque - jc .LSmallRemainingStoreAll// If all alphas are opaque, just store (overlapping) - jz .LSmallExit // If all alphas are zero, skip the pixels completely - - // Handle mixed alphas (calculate and scale) - lddqu (%edx, %edi), %xmm5 // Load last four destination pixels (overlapping) - EXTRACT_ALPHA(xmm1, xmm2) // Extract and clone alpha value - - psllw $8, %xmm3 // Filter out red and blue components - pmulhuw %xmm4, %xmm3 // Scale red and blue - movdqa %xmm5, %xmm2 - psrlw $8, %xmm2 // Filter out alpha and green components - pmullw %xmm4, %xmm2 // Scale alpha and green - - cmpl $-8, %ecx // Check how many pixels should be written - pblendvb %xmm3, %xmm2 // Combine results (mask in %xmm0, implicitly) - paddb %xmm2, %xmm1 // Add source and destination pixels together - jb .LSmallPixelsLeft1 - ja .LSmallPixelsLeft3 // To avoid double-blending the overlapping pixels... - pblendw $0xF0, %xmm1, %xmm5 // Merge only the final two pixels to the destination - movdqu %xmm5, (%edx, %edi) // Store last two destination pixels -.LSmallExit: - RETURN - -.LSmallPixelsLeft1: - pblendw $0xC0, %xmm1, %xmm5 // Merge only the final pixel to the destination - movdqu %xmm5, (%edx, %edi) // Store last destination pixel - RETURN - -.LSmallPixelsLeft3: - pblendw $0xFC, %xmm1, %xmm5 // Merge only the final three pixels to the destination - movdqu %xmm5, (%edx, %edi) // Store last three destination pixels - RETURN - -.LSmallRemainingStoreAll: - movdqu %xmm1, (%edx, %edi) // Store last destination pixels (overwrite) - RETURN - - // Handle really small blits (0-3 pixels) - //////////////////////////////////////////////////////////////////////////////// -.LReallySmall: - addl $4, %ecx - jle .LReallySmallExit - pcmpeqd %xmm1, %xmm1 - cmp $2, %ecx // Check how many pixels should be read - pinsrd $0x0, (%eax), %xmm1 // Load one source pixel - pinsrd $0x0, (%edx), %xmm5 // Load one destination pixel - jb .LReallySmallCalc - pinsrd $0x1, 4(%eax), %xmm1 // Load second source pixel - pinsrd $0x1, 4(%edx), %xmm5 // Load second destination pixel - je .LReallySmallCalc - pinsrd $0x2, 8(%eax), %xmm1 // Load third source pixel - pinsrd $0x2, 8(%edx), %xmm5 // Load third destination pixel - -.LReallySmallCalc: - ptest %xmm7, %xmm1 // Check if all alphas are opaque - jc .LReallySmallStore // If all alphas are opaque, just store - - // Handle mixed alphas (calculate and scale) - EXTRACT_ALPHA(xmm1, xmm2) // Extract and clone alpha value - - pand %xmm0, %xmm5 // Filter out red and blue components - pmullw %xmm4, %xmm5 // Scale red and blue - psrlw $8, %xmm3 // Filter out alpha and green components - pmullw %xmm4, %xmm3 // Scale alpha and green - - psrlw $8, %xmm5 // Combine results - pblendvb %xmm5, %xmm3 // Mask in %xmm0, implicitly - paddb %xmm3, %xmm1 // Add source and destination pixels together - -.LReallySmallStore: - cmp $2, %ecx // Check how many pixels should be written - pextrd $0x0, %xmm1, (%edx) // Store one destination pixel - jb .LReallySmallExit - pextrd $0x1, %xmm1, 4(%edx) // Store second destination pixel - je .LReallySmallExit - pextrd $0x2, %xmm1, 8(%edx) // Store third destination pixel -.LReallySmallExit: - ret - - // Handle bigger blit operations (16+ pixels) - //////////////////////////////////////////////////////////////////////////////// - .p2align 4 -.LBigBlit: - // Align destination? - testl $0xF, %edx - lddqu (%eax), %xmm1 // Pre-load four source pixels - jz .LAligned - - movl %edx, %edi // Calculate alignment of destination pointer - negl %edi - andl $0xF, %edi - - // Handle 1-3 pixels to align destination - ptest %xmm7, %xmm1 // Check if all alphas are zero or opaque - jz .LAlignDone // If all alphas are zero, just skip - lddqu (%edx), %xmm5 // Load four destination pixels - jc .LAlignStore // If all alphas are opaque, just store - - // Handle mixed alphas (calculate and scale) - EXTRACT_ALPHA(xmm1, xmm2) // Extract and clone alpha value - - psllw $8, %xmm3 // Filter out red and blue components - pmulhuw %xmm4, %xmm3 // Scale red and blue - movdqa %xmm5, %xmm2 - psrlw $8, %xmm2 // Filter out alpha and green components - pmullw %xmm4, %xmm2 // Scale alpha and green - - pblendvb %xmm3, %xmm2 // Combine results (mask in %xmm0, implicitly) - paddb %xmm2, %xmm1 // Add source and destination pixels together - -.LAlignStore: - cmp $8, %edi // Check how many pixels should be written - jb .LAlignPixelsLeft1 - ja .LAlignPixelsLeft3 - pblendw $0x0F, %xmm1, %xmm5 // Blend two pixels - jmp .LAlignStorePixels - -.LAlignPixelsLeft1: - pblendw $0x03, %xmm1, %xmm5 // Blend one pixel - jmp .LAlignStorePixels - -.LAlignPixelsLeft3: - pblendw $0x3F, %xmm1, %xmm5 // Blend three pixels - -.LAlignStorePixels: - movdqu %xmm5, (%edx) // Store destination pixels - -.LAlignDone: - addl %edi, %eax // Adjust pointers and pixel count - addl %edi, %edx - shrl $2, %edi - lddqu (%eax), %xmm1 // Pre-load new source pixels (after alignment) - subl %edi, %ecx - -.LAligned: // Destination is guaranteed to be 16 byte aligned - xorl %edi, %edi // Reset offset to zero - subl $8, %ecx // Decrease counter (Reserve four pixels for the cleanup) - testl $0xF, %eax // Check alignment of source pointer - jz .LAlignedLoop - - // Source not aligned to destination - //////////////////////////////////////////////////////////////////////////////// - .p2align 4 -.LUnalignedLoop: // Main loop for unaligned, handles eight pixels per iteration - ptest %xmm7, %xmm1 // Check if all alphas are zero or opaque - ja .LAlphaNotOpaqueOrZero00 - lddqu 16(%eax, %edi), %xmm2 // Pre-load four source pixels - jz .LAlphaZero00 - movdqa %xmm1, (%edx, %edi) // Store four destination pixels - -.LAlphaZero00: - ptest %xmm7, %xmm2 // Check if all alphas are zero or opaque - ja .LAlphaNotOpaqueOrZero01 - lddqu 32(%eax, %edi), %xmm1 // Pre-load four source pixels - jz .LAlphaZero01 - movdqa %xmm2, 16(%edx, %edi) // Store four destination pixels - -.LAlphaZero01: - addl $32, %edi // Adjust offset and pixel count - subl $8, %ecx - jae .LUnalignedLoop - addl $8, %ecx // Adjust pixel count - jmp .LLoopCleanup0 - - .p2align 4 -.LAlphaNotOpaqueOrZero00: - movdqa (%edx, %edi), %xmm5 // Load four destination pixels - EXTRACT_ALPHA(xmm1, xmm2) // Extract and clone alpha value - SCALE_PIXELS // Scale pixels using alpha - - lddqu 16(%eax, %edi), %xmm2 // Pre-load four source pixels - pblendvb %xmm5, %xmm3 // Combine results (mask in %xmm0, implicitly) - paddb %xmm3, %xmm1 // Add source and destination pixels together - movdqa %xmm1, (%edx, %edi) // Store four destination pixels - - // Handle next four pixels - ptest %xmm7, %xmm2 // Check if all alphas are zero or opaque - ja .LAlphaNotOpaqueOrZero01 - lddqu 32(%eax, %edi), %xmm1 // Pre-load four source pixels - jz .LAlphaZero02 - movdqa %xmm2, 16(%edx, %edi) // Store four destination pixels -.LAlphaZero02: - addl $32, %edi // Adjust offset and pixel count - subl $8, %ecx - jae .LUnalignedLoop - addl $8, %ecx // Adjust pixel count - jmp .LLoopCleanup0 - - .p2align 4 -.LAlphaNotOpaqueOrZero01: - movdqa 16(%edx, %edi), %xmm5 // Load four destination pixels - EXTRACT_ALPHA(xmm2, xmm1) // Extract and clone alpha value - SCALE_PIXELS // Scale pixels using alpha - - lddqu 32(%eax, %edi), %xmm1 // Pre-load four source pixels - addl $32, %edi - pblendvb %xmm5, %xmm3 // Combine results (mask in %xmm0, implicitly) - paddb %xmm3, %xmm2 // Add source and destination pixels together - subl $8, %ecx - movdqa %xmm2, -16(%edx, %edi) // Store four destination pixels - jae .LUnalignedLoop - addl $8, %ecx // Adjust pixel count - - // Cleanup - handle pending pixels from loop -.LLoopCleanup0: - ptest %xmm7, %xmm1 // Check if all alphas are zero or opaque - ja .LAlphaNotOpaqueOrZero02 - jz .LAlphaZero03 - movdqa %xmm1, (%edx, %edi) // Store four destination pixels -.LAlphaZero03: - addl $16, %edi - subl $4, %ecx - js .LSmallRemaining // Reuse code from small loop - -.LRemain0: - lddqu (%eax, %edi), %xmm1 // Load four source pixels - ptest %xmm7, %xmm1 // Check if all alphas are zero or opaque - ja .LAlphaNotOpaqueOrZero02 - jz .LAlphaZero04 - movdqa %xmm1, (%edx, %edi) // Store four destination pixels -.LAlphaZero04: - addl $16, %edi - subl $4, %ecx - jmp .LSmallRemaining // Reuse code from small loop - -.LAlphaNotOpaqueOrZero02: - movdqa (%edx, %edi), %xmm5 // Load four destination pixels - EXTRACT_ALPHA(xmm1, xmm2) // Extract and clone alpha value - SCALE_PIXELS // Scale pixels using alpha - - addl $16, %edi - subl $4, %ecx - pblendvb %xmm5, %xmm3 // Combine results (mask in %xmm0, implicitly) - paddb %xmm3, %xmm1 // Add source and destination pixels together - movdqa %xmm1, -16(%edx, %edi) // Store four destination pixels - js .LSmallRemaining // Reuse code from small loop - jmp .LRemain0 - - // Source aligned to destination - //////////////////////////////////////////////////////////////////////////////// - .p2align 4 -.LAlignedLoop: // Main loop for aligned, handles eight pixels per iteration - ptest %xmm7, %xmm1 // Check if all alphas are zero or opaque - ja .LAlphaNotOpaqueOrZero10 - movdqa 16(%eax, %edi), %xmm2 // Pre-load four source pixels - jz .LAlphaZero10 - movdqa %xmm1, (%edx, %edi) // Store four destination pixels - -.LAlphaZero10: - ptest %xmm7, %xmm2 // Check if all alphas are zero or opaque - ja .LAlphaNotOpaqueOrZero11 - movdqa 32(%eax, %edi), %xmm1 // Pre-load four source pixels - jz .LAlphaZero11 - movdqa %xmm2, 16(%edx, %edi) // Store four destination pixels - -.LAlphaZero11: - addl $32, %edi // Adjust offset and pixel count - subl $8, %ecx - jae .LAlignedLoop - addl $8, %ecx // Adjust pixel count - jmp .LLoopCleanup1 - - .p2align 4 -.LAlphaNotOpaqueOrZero10: - movdqa (%edx, %edi), %xmm5 // Load four destination pixels - EXTRACT_ALPHA(xmm1, xmm2) // Extract and clone alpha value - SCALE_PIXELS // Scale pixels using alpha - - movdqa 16(%eax, %edi), %xmm2 // Pre-load four source pixels - pblendvb %xmm5, %xmm3 // Combine results (mask in %xmm0, implicitly) - paddb %xmm3, %xmm1 // Add source and destination pixels together - movdqa %xmm1, (%edx, %edi) // Store four destination pixels - - // Handle next four pixels - ptest %xmm7, %xmm2 // Check if all alphas are zero or opaque - ja .LAlphaNotOpaqueOrZero11 - movdqa 32(%eax, %edi), %xmm1 // Pre-load four source pixels - jz .LAlphaZero12 - movdqa %xmm2, 16(%edx, %edi) // Store four destination pixels -.LAlphaZero12: - addl $32, %edi // Adjust offset and pixel count - subl $8, %ecx - jae .LAlignedLoop - addl $8, %ecx // Adjust pixel count - jmp .LLoopCleanup1 - - .p2align 4 -.LAlphaNotOpaqueOrZero11: - movdqa 16(%edx, %edi), %xmm5 // Load four destination pixels - EXTRACT_ALPHA(xmm2, xmm1) // Extract and clone alpha value - SCALE_PIXELS // Scale pixels using alpha - movdqa 32(%eax, %edi), %xmm1 // Pre-load four source pixels - - addl $32, %edi - pblendvb %xmm5, %xmm3 // Combine results (mask in %xmm0, implicitly) - paddb %xmm3, %xmm2 // Add source and destination pixels together - subl $8, %ecx - movdqa %xmm2, -16(%edx, %edi) // Store four destination pixels - jae .LAlignedLoop - addl $8, %ecx // Adjust pixel count - - // Cleanup - handle pending pixels from loop -.LLoopCleanup1: - ptest %xmm7, %xmm1 // Check if all alphas are zero or opaque - ja .LAlphaNotOpaqueOrZero12 - jz .LAlphaZero13 - movdqa %xmm1, (%edx, %edi) // Store four destination pixels -.LAlphaZero13: - addl $16, %edi - subl $4, %ecx - js .LSmallRemaining // Reuse code from small loop - -.LRemain1: - movdqa (%eax, %edi), %xmm1 // Load four source pixels - ptest %xmm7, %xmm1 // Check if all alphas are zero or opaque - ja .LAlphaNotOpaqueOrZero12 - jz .LAlphaZero14 - movdqa %xmm1, (%edx, %edi) // Store four destination pixels -.LAlphaZero14: - addl $16, %edi - subl $4, %ecx - jmp .LSmallRemaining // Reuse code from small loop - -.LAlphaNotOpaqueOrZero12: - movdqa (%edx, %edi), %xmm5 // Load four destination pixels - EXTRACT_ALPHA(xmm1, xmm2) // Extract and clone alpha value - SCALE_PIXELS // Scale pixels using alpha - - addl $16, %edi - subl $4, %ecx - pblendvb %xmm5, %xmm3 // Combine results (mask in %xmm0, implicitly) - paddb %xmm3, %xmm1 // Add source and destination pixels together - movdqa %xmm1, -16(%edx, %edi) // Store four destination pixels - js .LSmallRemaining // Reuse code from small loop - jmp .LRemain1 - - .cfi_endproc -#ifndef __clang__ - .size S32A_Opaque_BlitRow32_SSE4_asm, .-S32A_Opaque_BlitRow32_SSE4_asm -#endif -#endif - -#endif // CRBUG_399842_FIXED |