608 lines
18 KiB
C
608 lines
18 KiB
C
#include <assert.h>
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#include <errno.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <xf86drm.h>
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#include <libdrm/radeon_drm.h>
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#include "3d_registers.h"
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#include "3d_registers_undocumented.h"
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#include "3d_registers_bits.h"
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union u32_f32 {
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uint32_t u32;
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float f32;
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};
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static union u32_f32 ib[16384];
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#define TYPE_0_COUNT(c) (((c) & 0x3fff) << 16)
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#define TYPE_0_ONE_REG (1 << 15)
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#define TYPE_0_BASE_INDEX(i) (((i) & 0x1fff) << 0)
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#define TYPE_3_COUNT(c) (((c) & 0x3fff) << 16)
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#define TYPE_3_OPCODE(o) (((o) & 0xff) << 8)
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#define T0(address, count) \
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do { \
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ib[ix++].u32 = TYPE_0_COUNT(count) | TYPE_0_BASE_INDEX(address >> 2); \
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} while (0);
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#define T0_ONE_REG(address, count) \
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do { \
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ib[ix++].u32 = TYPE_0_COUNT(count) | TYPE_0_ONE_REG | TYPE_0_BASE_INDEX(address >> 2); \
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} while (0);
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#define T0V(address, value) \
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do { \
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ib[ix++].u32 = TYPE_0_COUNT(0) | TYPE_0_BASE_INDEX(address >> 2); \
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ib[ix++].u32 = value; \
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} while (0);
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#define T0Vf(address, value) \
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do { \
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ib[ix++].u32 = TYPE_0_COUNT(0) | TYPE_0_BASE_INDEX(address >> 2); \
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ib[ix++].f32 = value; \
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} while (0);
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#define T3(opcode, count) \
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do { \
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ib[ix++].u32 = (0b11 << 30) | TYPE_3_COUNT(count) | TYPE_3_OPCODE(opcode); \
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} while (0);
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#define _3D_DRAW_IMMD_2 0x35
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int indirect_buffer()
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{
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int ix = 0;
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T0V(SC_SCISSOR0
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, SC_SCISSOR0__XS0(0)
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| SC_SCISSOR0__YS0(0)
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);
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T0V(SC_SCISSOR1
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, SC_SCISSOR1__XS1(1600 - 1)
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| SC_SCISSOR1__YS1(1200 - 1)
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);
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T0V(RB3D_DSTCACHE_CTLSTAT
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, RB3D_DSTCACHE_CTLSTAT__DC_FLUSH(0x2) // Flush dirty 3D data
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| RB3D_DSTCACHE_CTLSTAT__DC_FREE(0x2) // Free 3D tags
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);
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T0V(ZB_ZCACHE_CTLSTAT
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, ZB_ZCACHE_CTLSTAT__ZC_FLUSH(1)
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| ZB_ZCACHE_CTLSTAT__ZC_FREE(1)
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);
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T0V(WAIT_UNTIL, 0x00020000);
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T0V(GB_AA_CONFIG, 0x00000000);
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T0V(RB3D_AARESOLVE_CTL, 0x00000000);
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T0V(RB3D_CCTL
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, RB3D_CCTL__INDEPENDENT_COLORFORMAT_ENABLE(1)
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);
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T0V(RB3D_COLOROFFSET0, 0x00000000); // value replaced by kernel from relocs
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ib[ix++].u32 = 0xc0001000;
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ib[ix++].u32 = 0x0;
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T0V(RB3D_COLORPITCH0
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, RB3D_COLORPITCH__COLORPITCH(1600 >> 1)
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| RB3D_COLORPITCH__COLORFORMAT(6) // ARGB8888
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);
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ib[ix++].u32 = 0xc0001000;
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ib[ix++].u32 = 0x0;
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T0V(ZB_BW_CNTL, 0x00000000);
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T0V(ZB_DEPTHCLEARVALUE, 0x00000000);
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T0V(SC_HYPERZ_EN, 0x00000000);
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T0V(GB_Z_PEQ_CONFIG, 0x00000000);
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T0V(ZB_ZTOP
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, ZB_ZTOP__ZTOP(1)
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);
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T0V(FG_ALPHA_FUNC, 0x00000000);
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T0V(ZB_CNTL, 0x00000000);
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T0V(ZB_ZSTENCILCNTL, 0x00000000);
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T0V(ZB_STENCILREFMASK, 0x00000000);
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T0V(ZB_STENCILREFMASK_BF, 0x00000000);
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T0V(FG_ALPHA_VALUE, 0x00000000);
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T0V(RB3D_ROPCNTL, 0x00000000);
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T0V(RB3D_BLENDCNTL, 0x00000000);
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T0V(RB3D_ABLENDCNTL, 0x00000000);
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T0V(RB3D_COLOR_CHANNEL_MASK
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, RB3D_COLOR_CHANNEL_MASK__BLUE_MASK(1)
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| RB3D_COLOR_CHANNEL_MASK__GREEN_MASK(1)
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| RB3D_COLOR_CHANNEL_MASK__RED_MASK(1)
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| RB3D_COLOR_CHANNEL_MASK__ALPHA_MASK(1)
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);
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T0V(RB3D_DITHER_CTL, 0x00000000);
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T0V(RB3D_CONSTANT_COLOR_AR, 0x00000000);
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T0V(RB3D_CONSTANT_COLOR_GB, 0x00000000);
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T0V(SC_CLIP_0_A, 0x00000000);
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T0V(SC_CLIP_0_B, 0xffffffff);
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T0V(SC_SCREENDOOR, 0x00ffffff);
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T0V(GB_SELECT, 0x00000000);
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T0V(FG_FOG_BLEND, 0x00000000);
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T0V(GA_OFFSET, 0x00000000);
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T0V(SU_TEX_WRAP, 0x00000000);
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T0Vf(SU_DEPTH_SCALE, 16777215.0f);
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T0V(SU_DEPTH_OFFSET, 0x00000000);
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T0V(SC_EDGERULE
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, SC_EDGERULE__ER_TRI(5) // L-in,R-out,HT-in,HB-in
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| SC_EDGERULE__ER_POINT(9) // L-out,R-in,HT-in,HB-out
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| SC_EDGERULE__ER_LINE_LR(5) // L-in,R-out,HT-in,HB-out
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| SC_EDGERULE__ER_LINE_RL(9) // L-out,R-in,HT-in,HB-out
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| SC_EDGERULE__ER_LINE_TB(26) // T-in,B-out,VL-out,VR-in
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| SC_EDGERULE__ER_LINE_BT(22) // T-out,B-in,VL-out,VR-in
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);
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T0V(RB3D_DISCARD_SRC_PIXEL_LTE_THRESHOLD
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, RB3D_DISCARD_SRC_PIXEL_LTE_THRESHOLD__BLUE(1)
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| RB3D_DISCARD_SRC_PIXEL_LTE_THRESHOLD__GREEN(1)
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| RB3D_DISCARD_SRC_PIXEL_LTE_THRESHOLD__RED(1)
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| RB3D_DISCARD_SRC_PIXEL_LTE_THRESHOLD__ALPHA(1)
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);
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T0V(RB3D_DISCARD_SRC_PIXEL_GTE_THRESHOLD
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, RB3D_DISCARD_SRC_PIXEL_GTE_THRESHOLD__BLUE(254)
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| RB3D_DISCARD_SRC_PIXEL_GTE_THRESHOLD__GREEN(254)
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| RB3D_DISCARD_SRC_PIXEL_GTE_THRESHOLD__RED(254)
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| RB3D_DISCARD_SRC_PIXEL_GTE_THRESHOLD__ALPHA(254)
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);
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T0V(GA_COLOR_CONTROL_PS3, 0x00000000);
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T0V(SU_TEX_WRAP_PS3, 0x00000000);
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T0Vf(VAP_VPORT_XSCALE, 800.0f);
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T0Vf(VAP_VPORT_XOFFSET, 800.0f);
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T0Vf(VAP_VPORT_YSCALE, -600.0f);
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T0Vf(VAP_VPORT_YOFFSET, 600.0f);
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T0Vf(VAP_VPORT_ZSCALE, 0.5f);
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T0Vf(VAP_VPORT_ZOFFSET, 0.5f);
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T0V(VAP_VTE_CNTL
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, VAP_VTE_CNTL__VPORT_X_SCALE_ENA(1)
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| VAP_VTE_CNTL__VPORT_X_OFFSET_ENA(1)
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| VAP_VTE_CNTL__VPORT_Y_SCALE_ENA(1)
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| VAP_VTE_CNTL__VPORT_Y_OFFSET_ENA(1)
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| VAP_VTE_CNTL__VPORT_Z_SCALE_ENA(1)
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| VAP_VTE_CNTL__VPORT_Z_OFFSET_ENA(1)
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| VAP_VTE_CNTL__VTX_XY_FMT(0)
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| VAP_VTE_CNTL__VTX_Z_FMT(0)
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| VAP_VTE_CNTL__VTX_W0_FMT(1)
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| VAP_VTE_CNTL__SERIAL_PROC_ENA(0)
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);
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T0V(VAP_PVS_STATE_FLUSH_REG, 0x00000000);
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T0V(VAP_PVS_VTX_TIMEOUT_REG
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, VAP_PVS_VTX_TIMEOUT_REG__CLK_COUNT(0xffff)
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);
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T0Vf(VAP_GB_VERT_CLIP_ADJ, 1.0f);
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T0Vf(VAP_GB_VERT_DISC_ADJ, 1.0f);
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T0Vf(VAP_GB_HORZ_CLIP_ADJ, 1.0f);
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T0Vf(VAP_GB_HORZ_DISC_ADJ, 1.0f);
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T0V(VAP_PSC_SGN_NORM_CNTL
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, VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_0(2)
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| VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_1(2)
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| VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_2(2)
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| VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_3(2)
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| VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_4(2)
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| VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_5(2)
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| VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_6(2)
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| VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_7(2)
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| VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_8(2)
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| VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_9(2)
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| VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_10(2)
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| VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_11(2)
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| VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_12(2)
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| VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_13(2)
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| VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_14(2)
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| VAP_PSC_SGN_NORM_CNTL__SGN_NORM_METHOD_15(2)
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);
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T0V(VAP_TEX_TO_COLOR_CNTL, 0x00000000);
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T0V(VAP_PROG_STREAM_CNTL_0
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, VAP_PROG_STREAM_CNTL__DATA_TYPE_0(2)
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| VAP_PROG_STREAM_CNTL__SKIP_DWORDS_0(0)
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| VAP_PROG_STREAM_CNTL__DST_VEC_LOC_0(0)
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| VAP_PROG_STREAM_CNTL__LAST_VEC_0(1)
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| VAP_PROG_STREAM_CNTL__SIGNED_0(0)
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| VAP_PROG_STREAM_CNTL__NORMALIZE_0(0)
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);
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T0V(VAP_PROG_STREAM_CNTL_EXT_0
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, VAP_PROG_STREAM_CNTL_EXT__SWIZZLE_SELECT_X_0(0)
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| VAP_PROG_STREAM_CNTL_EXT__SWIZZLE_SELECT_Y_0(1)
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| VAP_PROG_STREAM_CNTL_EXT__SWIZZLE_SELECT_Z_0(2)
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| VAP_PROG_STREAM_CNTL_EXT__SWIZZLE_SELECT_W_0(5)
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| VAP_PROG_STREAM_CNTL_EXT__WRITE_ENA_0(15)
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);
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T0V(VAP_PVS_CODE_CNTL_0, 0x00000000);
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T0V(VAP_PVS_CODE_CNTL_1, 0x00000000);
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T0V(VAP_PVS_VECTOR_INDX_REG, 0x00000000);
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T0_ONE_REG(VAP_PVS_VECTOR_DATA_REG_128, 3);
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ib[ix++].u32 = 0x00f00203;
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ib[ix++].u32 = 0x00d10001;
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ib[ix++].u32 = 0x01248001;
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ib[ix++].u32 = 0x01248001;
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T0V(VAP_CNTL
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, VAP_CNTL__PVS_NUM_SLOTS(10)
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| VAP_CNTL__PVS_NUM_CNTLRS(5)
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| VAP_CNTL__PVS_NUM_FPUS(5)
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| VAP_CNTL__VAP_NO_RENDER(0)
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| VAP_CNTL__VF_MAX_VTX_NUM(12)
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| VAP_CNTL__DX_CLIP_SPACE_DEF(0)
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| VAP_CNTL__TCL_STATE_OPTIMIZATION(1)
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);
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T0V(VAP_PVS_FLOW_CNTL_OPC, 0x00000000);
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T0(VAP_PVS_FLOW_CNTL_ADDRS_LW_0, 31);
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for (int i = 0; i < 32; i++)
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ib[ix++].u32 = 0x00000000;
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T0(VAP_PVS_FLOW_CNTL_LOOP_INDEX_0, 15);
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for (int i = 0; i < 16; i++)
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ib[ix++].u32 = 0x00000000;
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T0V(VAP_PVS_VECTOR_INDX_REG, 0x00000600);
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T0_ONE_REG(VAP_PVS_VECTOR_DATA_REG_128, 23);
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for (int i = 0; i < 24; i++)
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ib[ix++].u32 = 0x00000000;
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T0V(VAP_VTX_STATE_CNTL
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, VAP_VTX_STATE_CNTL__COLOR_0_ASSEMBLY_CNTL(1)
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| VAP_VTX_STATE_CNTL__COLOR_1_ASSEMBLY_CNTL(1)
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| VAP_VTX_STATE_CNTL__COLOR_2_ASSEMBLY_CNTL(1)
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| VAP_VTX_STATE_CNTL__COLOR_3_ASSEMBLY_CNTL(1)
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| VAP_VTX_STATE_CNTL__COLOR_4_ASSEMBLY_CNTL(1)
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| VAP_VTX_STATE_CNTL__COLOR_5_ASSEMBLY_CNTL(1)
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| VAP_VTX_STATE_CNTL__COLOR_6_ASSEMBLY_CNTL(1)
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| VAP_VTX_STATE_CNTL__COLOR_7_ASSEMBLY_CNTL(1)
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| VAP_VTX_STATE_CNTL__UPDATE_USER_COLOR_0_ENA(0)
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);
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T0V(VAP_VSM_VTX_ASSM
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, 0x00000001); // undocumented
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T0V(VAP_OUT_VTX_FMT_0
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, VAP_OUT_VTX_FMT_0__VTX_POS_PRESENT(1));
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T0V(VAP_OUT_VTX_FMT_1
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, 0x0);
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T0V(GB_ENABLE, 0x00000000);
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T0V(RS_IP_0
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, RS_IP__TEX_PTR_S(0)
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| RS_IP__TEX_PTR_T(0)
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| RS_IP__TEX_PTR_R(0)
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| RS_IP__TEX_PTR_Q(0)
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| RS_IP__COL_PTR(0)
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| RS_IP__COL_FMT(6) // Zero components (0,0,0,1)
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| RS_IP__OFFSET_EN(0)
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);
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T0V(RS_COUNT
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, RS_COUNT__IT_COUNT(0)
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| RS_COUNT__IC_COUNT(1)
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| RS_COUNT__W_ADDR(0)
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| RS_COUNT__HIRES_EN(1)
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);
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T0V(RS_INST_COUNT, 0x00000000);
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T0V(RS_INST_0, 0x00000000);
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T0V(VAP_CNTL_STATUS, 0x00000000);
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T0V(VAP_CLIP_CNTL
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, VAP_CLIP_CNTL__PS_UCP_MODE(3)
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);
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T0V(GA_POINT_SIZE
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, GA_POINT_SIZE__HEIGHT(6)
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| GA_POINT_SIZE__WIDTH(6)
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);
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T0V(GA_POINT_MINMAX
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, GA_POINT_MINMAX__MIN_SIZE(6)
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| GA_POINT_MINMAX__MAX_SIZE(6)
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);
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T0V(GA_LINE_CNTL
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, GA_LINE_CNTL__WIDTH(6)
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| GA_LINE_CNTL__END_TYPE(2)
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| GA_LINE_CNTL__SORT(0)
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);
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T0V(SU_POLY_OFFSET_ENABLE, 0x00000000);
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T0V(SU_CULL_MODE, 0x00000000);
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T0V(GA_LINE_STIPPLE_CONFIG, 0x00000000);
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T0V(GA_LINE_STIPPLE_VALUE, 0x00000000);
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T0V(GA_POLY_MODE, 0x00000000);
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T0V(GA_ROUND_MODE
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, GA_ROUND_MODE__GEOMETRY_ROUND(1)
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| GA_ROUND_MODE__COLOR_ROUND(0)
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| GA_ROUND_MODE__RGB_CLAMP(1)
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| GA_ROUND_MODE__ALPHA_CLAMP(1)
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| GA_ROUND_MODE__GEOMETRY_MASK(0)
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);
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T0V(SC_CLIP_RULE
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, SC_CLIP_RULE__CLIP_RULE(0xffff));
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T0Vf(GA_POINT_S0, 0.0f);
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T0Vf(GA_POINT_T0, 1.0f);
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T0Vf(GA_POINT_S1, 1.0f);
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T0Vf(GA_POINT_T1, 0.0f);
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T0V(US_OUT_FMT_0
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, US_OUT_FMT__OUT_FMT(0) // C4_8
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| US_OUT_FMT__C0_SEL(3) // Blue
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| US_OUT_FMT__C1_SEL(2) // Green
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| US_OUT_FMT__C2_SEL(1) // Red
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| US_OUT_FMT__C3_SEL(0) // Alpha
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| US_OUT_FMT__OUT_SIGN(0)
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);
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T0V(US_OUT_FMT_1
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, US_OUT_FMT__OUT_FMT(15) // render target is not used
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);
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T0V(US_OUT_FMT_2
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, US_OUT_FMT__OUT_FMT(15) // render target is not used
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);
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T0V(US_OUT_FMT_2
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, US_OUT_FMT__OUT_FMT(15) // render target is not used
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);
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T0V(GB_MSPOS0
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, GB_MSPOS0__MS_X0(6)
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| GB_MSPOS0__MS_Y0(6)
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| GB_MSPOS0__MS_X1(6)
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| GB_MSPOS0__MS_Y1(6)
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| GB_MSPOS0__MS_X2(6)
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| GB_MSPOS0__MS_Y2(6)
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| GB_MSPOS0__MSBD0_Y(6)
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| GB_MSPOS0__MSBD0_X(6)
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);
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T0V(GB_MSPOS1
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, GB_MSPOS1__MS_X3(6)
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| GB_MSPOS1__MS_Y3(6)
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| GB_MSPOS1__MS_X4(6)
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| GB_MSPOS1__MS_Y4(6)
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| GB_MSPOS1__MS_X5(6)
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| GB_MSPOS1__MS_Y5(6)
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| GB_MSPOS1__MSBD1(6)
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);
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T0V(US_CONFIG
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, US_CONFIG__ZERO_TIMES_ANYTHING_EQUALS_ZERO(1)
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);
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T0V(US_PIXSIZE
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, US_PIXSIZE__PIX_SIZE(1)
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);
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T0V(US_FC_CTRL, 0);
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T0V(US_CODE_RANGE
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, US_CODE_RANGE__CODE_ADDR(0)
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| US_CODE_RANGE__CODE_SIZE(0)
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|
);
|
|
T0V(US_CODE_OFFSET
|
|
, US_CODE_OFFSET__OFFSET_ADDR(0)
|
|
);
|
|
T0V(US_CODE_ADDR
|
|
, US_CODE_ADDR__START_ADDR(0)
|
|
| US_CODE_ADDR__END_ADDR(0)
|
|
);
|
|
T0V(GA_US_VECTOR_INDEX, 0x00000000);
|
|
|
|
T0_ONE_REG(GA_US_VECTOR_DATA, 5);
|
|
ib[ix++].u32 = 0x00078005;
|
|
ib[ix++].u32 = 0x08020080;
|
|
ib[ix++].u32 = 0x08020080;
|
|
ib[ix++].u32 = 0x1c9b04d8;
|
|
ib[ix++].u32 = 0x1c810003;
|
|
ib[ix++].u32 = 0x00000005;
|
|
|
|
T0V(FG_DEPTH_SRC, 0x00000000);
|
|
T0V(US_W_FMT, 0x00000000);
|
|
T0V(VAP_PVS_CONST_CNTL, 0x00000000);
|
|
T0V(TX_INVALTAGS, 0x00000000);
|
|
T0V(TX_ENABLE, 0x00000000);
|
|
T0V(VAP_INDEX_OFFSET, 0x00000000);
|
|
T0V(GA_COLOR_CONTROL
|
|
, GA_COLOR_CONTROL__RGB0_SHADING(2)
|
|
| GA_COLOR_CONTROL__ALPHA0_SHADING(2)
|
|
| GA_COLOR_CONTROL__RGB1_SHADING(2)
|
|
| GA_COLOR_CONTROL__ALPHA1_SHADING(2)
|
|
| GA_COLOR_CONTROL__RGB2_SHADING(2)
|
|
| GA_COLOR_CONTROL__ALPHA2_SHADING(2)
|
|
| GA_COLOR_CONTROL__RGB3_SHADING(2)
|
|
| GA_COLOR_CONTROL__ALPHA3_SHADING(2)
|
|
| GA_COLOR_CONTROL__PROVOKING_VERTEX(3)
|
|
);
|
|
T0V(VAP_VF_MAX_VTX_INDX
|
|
, VAP_VF_MAX_VTX_INDX__MAX_INDX(2)
|
|
);
|
|
T0V(VAP_VF_MIN_VTX_INDX
|
|
, VAP_VF_MIN_VTX_INDX__MIN_INDX(0)
|
|
);
|
|
T0V(VAP_VTX_SIZE
|
|
, VAP_VTX_SIZE__DWORDS_PER_VTX(3)
|
|
);
|
|
|
|
const float vertices[] = {
|
|
0.5f, -0.5f, 0.0f, // bottom right
|
|
-0.5f, -0.5f, 0.0f, // bottom left
|
|
0.0f, 0.5f, 0.0f, // top
|
|
};
|
|
|
|
T3(_3D_DRAW_IMMD_2, 9);
|
|
ib[ix++].u32
|
|
= VAP_VF_CNTL__PRIM_TYPE(4)
|
|
| VAP_VF_CNTL__PRIM_WALK(3)
|
|
| VAP_VF_CNTL__INDEX_SIZE(0)
|
|
| VAP_VF_CNTL__VTX_REUSE_DIS(0)
|
|
| VAP_VF_CNTL__DUAL_INDEX_MODE(0)
|
|
| VAP_VF_CNTL__USE_ALT_NUM_VERTS(0)
|
|
| VAP_VF_CNTL__NUM_VERTICES(3)
|
|
;
|
|
for (int i = 0; i < 9; i++) {
|
|
ib[ix++].f32 = vertices[i];
|
|
}
|
|
|
|
while ((ix % 8) != 0) {
|
|
ib[ix++].u32 = 0x80000000;
|
|
}
|
|
|
|
return ix;
|
|
}
|
|
|
|
int main()
|
|
{
|
|
int ret;
|
|
int fd = open("/dev/dri/card0", O_RDWR | O_CLOEXEC);
|
|
|
|
const int colorbuffer_size = 1600 * 1200 * 4;
|
|
int colorbuffer_handle;
|
|
void * colorbuffer_ptr;
|
|
int flush_handle;
|
|
|
|
// colorbuffer
|
|
{
|
|
struct drm_radeon_gem_create args = {
|
|
.size = colorbuffer_size,
|
|
.alignment = 4096,
|
|
.handle = 0,
|
|
.initial_domain = 4, // RADEON_GEM_DOMAIN_VRAM
|
|
.flags = 4
|
|
};
|
|
|
|
ret = drmCommandWriteRead(fd, DRM_RADEON_GEM_CREATE, &args, (sizeof (struct drm_radeon_gem_create)));
|
|
if (ret != 0) {
|
|
perror("drmCommandWriteRead(DRM_RADEON_GEM_CREATE)");
|
|
}
|
|
assert(args.handle != 0);
|
|
|
|
colorbuffer_handle = args.handle;
|
|
}
|
|
|
|
{
|
|
struct drm_radeon_gem_mmap mmap_args = {
|
|
.handle = colorbuffer_handle,
|
|
.offset = 0,
|
|
.size = colorbuffer_size,
|
|
};
|
|
ret = drmCommandWriteRead(fd, DRM_RADEON_GEM_MMAP, &mmap_args, (sizeof (struct drm_radeon_gem_mmap)));
|
|
if (ret != 0) {
|
|
perror("drmCommandWriteRead(DRM_RADEON_GEM_MMAP)");
|
|
}
|
|
|
|
colorbuffer_ptr = mmap(0, mmap_args.size, PROT_READ|PROT_WRITE, MAP_SHARED,
|
|
fd, mmap_args.addr_ptr);
|
|
}
|
|
|
|
{ // clear colorbuffer
|
|
for (int i = 0; i < colorbuffer_size / 4; i++) {
|
|
((uint32_t*)colorbuffer_ptr)[i] = 0;
|
|
}
|
|
asm volatile ("" ::: "memory");
|
|
}
|
|
|
|
// flush
|
|
{
|
|
struct drm_radeon_gem_create args = {
|
|
.size = 4096,
|
|
.alignment = 4096,
|
|
.handle = 0,
|
|
.initial_domain = 2, // GTT
|
|
.flags = 0
|
|
};
|
|
|
|
ret = drmCommandWriteRead(fd, DRM_RADEON_GEM_CREATE,
|
|
&args, (sizeof (args)));
|
|
if (ret != 0) {
|
|
perror("drmCommandWriteRead(DRM_RADEON_GEM_CREATE)");
|
|
}
|
|
assert(args.handle != 0);
|
|
flush_handle = args.handle;
|
|
}
|
|
|
|
|
|
fprintf(stderr, "colorbuffer handle %d\n", colorbuffer_handle);
|
|
|
|
struct drm_radeon_cs_reloc relocs[] = {
|
|
{
|
|
.handle = colorbuffer_handle,
|
|
.read_domains = 4, // RADEON_GEM_DOMAIN_VRAM
|
|
.write_domain = 4, // RADEON_GEM_DOMAIN_VRAM
|
|
.flags = 8,
|
|
},
|
|
{
|
|
.handle = flush_handle,
|
|
.read_domains = 2, // RADEON_GEM_DOMAIN_GTT
|
|
.write_domain = 2, // RADEON_GEM_DOMAIN_GTT
|
|
.flags = 0,
|
|
}
|
|
};
|
|
|
|
uint32_t flags[2] = {
|
|
5, // RADEON_CS_KEEP_TILING_FLAGS | RADEON_CS_END_OF_FRAME
|
|
0, // RADEON_CS_RING_GFX
|
|
};
|
|
|
|
int ib_dwords = indirect_buffer();
|
|
//int ib_dwords = (sizeof (ib2)) / (sizeof (ib2[0]));
|
|
|
|
struct drm_radeon_cs_chunk chunks[3] = {
|
|
{
|
|
.chunk_id = RADEON_CHUNK_ID_IB,
|
|
.length_dw = ib_dwords,
|
|
.chunk_data = (uint64_t)(uintptr_t)ib,
|
|
},
|
|
{
|
|
.chunk_id = RADEON_CHUNK_ID_RELOCS,
|
|
.length_dw = (sizeof (relocs)) / (sizeof (uint32_t)),
|
|
.chunk_data = (uint64_t)(uintptr_t)relocs,
|
|
},
|
|
{
|
|
.chunk_id = RADEON_CHUNK_ID_FLAGS,
|
|
.length_dw = (sizeof (flags)) / (sizeof (uint32_t)),
|
|
.chunk_data = (uint64_t)(uintptr_t)&flags,
|
|
},
|
|
};
|
|
|
|
uint64_t chunks_array[3] = {
|
|
(uint64_t)(uintptr_t)&chunks[0],
|
|
(uint64_t)(uintptr_t)&chunks[1],
|
|
(uint64_t)(uintptr_t)&chunks[2],
|
|
};
|
|
|
|
struct drm_radeon_cs cs = {
|
|
.num_chunks = 3,
|
|
.cs_id = 0,
|
|
.chunks = (uint64_t)(uintptr_t)chunks_array,
|
|
.gart_limit = 0,
|
|
.vram_limit = 0,
|
|
};
|
|
|
|
ret = drmCommandWriteRead(fd, DRM_RADEON_CS, &cs, (sizeof (struct drm_radeon_cs)));
|
|
if (ret != 0) {
|
|
perror("drmCommandWriteRead(DRM_RADEON_CS)");
|
|
}
|
|
|
|
struct drm_radeon_gem_wait_idle args = {
|
|
.handle = flush_handle
|
|
};
|
|
while (drmCommandWrite(fd, DRM_RADEON_GEM_WAIT_IDLE, &args, (sizeof (struct drm_radeon_gem_wait_idle))) == -EBUSY);
|
|
|
|
int out_fd = open("colorbuffer.data", O_RDWR|O_CREAT);
|
|
assert(out_fd >= 0);
|
|
ssize_t write_length = write(out_fd, colorbuffer_ptr, colorbuffer_size);
|
|
assert(write_length == colorbuffer_size);
|
|
close(out_fd);
|
|
|
|
int mm_fd = open("/sys/kernel/debug/radeon_vram_mm", O_RDONLY);
|
|
assert(mm_fd >= 0);
|
|
char buf[4096];
|
|
while (true) {
|
|
ssize_t read_length = read(mm_fd, buf, 4096);
|
|
assert(read_length >= 0);
|
|
write(STDOUT_FILENO, buf, read_length);
|
|
if (read_length < 4096) {
|
|
break;
|
|
}
|
|
}
|
|
close(mm_fd);
|
|
|
|
munmap(colorbuffer_ptr, colorbuffer_size);
|
|
|
|
close(fd);
|
|
}
|