diff options
Diffstat (limited to 'libpixelflinger/codeflinger/texturing.cpp')
| -rw-r--r-- | libpixelflinger/codeflinger/texturing.cpp | 104 |
1 files changed, 103 insertions, 1 deletions
diff --git a/libpixelflinger/codeflinger/texturing.cpp b/libpixelflinger/codeflinger/texturing.cpp index 90e6584..ba13fb3 100644 --- a/libpixelflinger/codeflinger/texturing.cpp +++ b/libpixelflinger/codeflinger/texturing.cpp @@ -25,6 +25,7 @@ #include "codeflinger/GGLAssembler.h" +#include <machine/cpu-features.h> namespace android { @@ -567,7 +568,7 @@ void GGLAssembler::build_textures( fragment_parts_t& parts, RSB(GE, 0, height, height, imm(0)); MUL(AL, 0, height, stride, height); } else { - // u has not been CLAMPed yet + // v has not been CLAMPed yet CMP(AL, height, reg_imm(v, ASR, FRAC_BITS)); MOV(LE, 0, v, reg_imm(height, LSL, FRAC_BITS)); MOV(LE, 0, height, imm(0)); @@ -868,6 +869,106 @@ void GGLAssembler::filter24( load(txPtr, texel, 0); } +#if __ARM_ARCH__ >= 6 +// ARMv6 version, using UXTB16, and scheduled for Cortex-A8 pipeline +void GGLAssembler::filter32( + const fragment_parts_t& parts, + pixel_t& texel, const texture_unit_t& tmu, + int U, int V, pointer_t& txPtr, + int FRAC_BITS) +{ + const int adjust = FRAC_BITS*2 - 8; + const int round = 0; + const int prescale = 16 - adjust; + + Scratch scratches(registerFile()); + + int pixel= scratches.obtain(); + int dh = scratches.obtain(); + int u = scratches.obtain(); + int k = scratches.obtain(); + + int temp = scratches.obtain(); + int dl = scratches.obtain(); + + int offsetrt = scratches.obtain(); + int offsetlb = scratches.obtain(); + + int pixellb = offsetlb; + + // RB -> U * V + CONTEXT_LOAD(offsetrt, generated_vars.rt); + CONTEXT_LOAD(offsetlb, generated_vars.lb); + if(!round) { + MOV(AL, 0, U, reg_imm(U, LSL, prescale)); + } + ADD(AL, 0, u, offsetrt, offsetlb); + + LDR(AL, pixel, txPtr.reg, reg_scale_pre(u)); + if (round) { + SMULBB(AL, u, U, V); + RSB(AL, 0, U, U, imm(1<<FRAC_BITS)); + } else { + SMULWB(AL, u, U, V); + RSB(AL, 0, U, U, imm(1<<(FRAC_BITS+prescale))); + } + UXTB16(AL, temp, pixel, 0); + if (round) { + ADD(AL, 0, u, u, imm(1<<(adjust-1))); + MOV(AL, 0, u, reg_imm(u, LSR, adjust)); + } + LDR(AL, pixellb, txPtr.reg, reg_scale_pre(offsetlb)); + MUL(AL, 0, dh, temp, u); + UXTB16(AL, temp, pixel, 8); + MUL(AL, 0, dl, temp, u); + RSB(AL, 0, k, u, imm(0x100)); + + // LB -> (1-U) * V + if (round) { + SMULBB(AL, u, U, V); + } else { + SMULWB(AL, u, U, V); + } + UXTB16(AL, temp, pixellb, 0); + if (round) { + ADD(AL, 0, u, u, imm(1<<(adjust-1))); + MOV(AL, 0, u, reg_imm(u, LSR, adjust)); + } + MLA(AL, 0, dh, temp, u, dh); + UXTB16(AL, temp, pixellb, 8); + MLA(AL, 0, dl, temp, u, dl); + SUB(AL, 0, k, k, u); + + // LT -> (1-U)*(1-V) + RSB(AL, 0, V, V, imm(1<<FRAC_BITS)); + LDR(AL, pixel, txPtr.reg); + if (round) { + SMULBB(AL, u, U, V); + } else { + SMULWB(AL, u, U, V); + } + UXTB16(AL, temp, pixel, 0); + if (round) { + ADD(AL, 0, u, u, imm(1<<(adjust-1))); + MOV(AL, 0, u, reg_imm(u, LSR, adjust)); + } + MLA(AL, 0, dh, temp, u, dh); + UXTB16(AL, temp, pixel, 8); + MLA(AL, 0, dl, temp, u, dl); + + // RT -> U*(1-V) + LDR(AL, pixel, txPtr.reg, reg_scale_pre(offsetrt)); + SUB(AL, 0, u, k, u); + UXTB16(AL, temp, pixel, 0); + MLA(AL, 0, dh, temp, u, dh); + UXTB16(AL, temp, pixel, 8); + MLA(AL, 0, dl, temp, u, dl); + + UXTB16(AL, dh, dh, 8); + UXTB16(AL, dl, dl, 8); + ORR(AL, 0, texel.reg, dh, reg_imm(dl, LSL, 8)); +} +#else void GGLAssembler::filter32( const fragment_parts_t& parts, pixel_t& texel, const texture_unit_t& tmu, @@ -955,6 +1056,7 @@ void GGLAssembler::filter32( AND(AL, 0, dl, dl, reg_imm(mask, LSL, 8)); ORR(AL, 0, texel.reg, dh, dl); } +#endif void GGLAssembler::build_texture_environment( component_t& fragment, |