d1d3ebb48c
It was a bit trickier to RE, since blob doesn't expose this functionality at all, however we had a clue from the very beginning: lima_blend_factor is 3 bits, i.e. 8 values, but only 5 of them were used, it just waited till someone tried what 3 unused values do. Interestingly enough, it turns out "5" works just as "0" (which is PIPE_BLENDFACTOR_*SRC_*), but only if output register for gl_FragColor is $0, So it looks suspiciously similar with PIPE_BLENDFACTOR_*SRC1_* behavior, and looks like secondary output is taken from $0. Since output regs for all other outputs are configured via RSW, there must be a field in RSW for output register for secondary color, it's likely 4 bits and it's currently set to 0 for reg $0. Then it was just a matter of brute-forcing various consecutive 4 bits in RSW - and indeed, setting top 4 bits of rsw->aux0 to the index of gl_FragColor output register fixes blending tests when we use "5" blend factor instead of "0". So it must be a register number for gl_SecondaryFragColor. Unlike gl_FragColor, the field is only repeated once in RSW. Wire it up in compiler, and piglit arb_blend_func_extended now passes. Reviewed-by: Andreas Baierl <ichgeh@imkreisrum.de> Reviewed-by: Erico Nunes <nunes.erico@gmail.com> Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13873>
149 lines
4.5 KiB
C
149 lines
4.5 KiB
C
/*
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* Copyright (C) 2018-2019 Lima Project
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef H_LIMA_PARSER
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#define H_LIMA_PARSER
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static const char *PIPE_COMPARE_FUNC_STRING[] = {
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"NEVER", /* 0 */
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"LESS", /* 1 */
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"EQUAL", /* 2 */
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"LEQUAL", /* 3 */
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"GREATER", /* 4 */
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"NOTEQUAL", /* 5 */
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"GEQUAL", /* 6 */
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"ALWAYS", /* 7 */
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};
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static const char *PIPE_STENCIL_OP_STRING[] = {
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"KEEP", /* 0 */
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"REPLACE", /* 1 */
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"ZERO", /* 2 */
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"INVERT", /* 3 */
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"INCR_WRAP", /* 4 */
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"DECR_WRAP", /* 5 */
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"INCR", /* 6 */
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"DECR", /* 7 */
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};
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static const char *PIPE_BLEND_FUNC_STRING[] = {
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"SUBTRACT", /* 0 */
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"REV_SUBTRACT", /* 1 */
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"ADD", /* 2 */
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"UNKNOWN_3", /* 3 */
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"BLEND_MIN", /* 4 */
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"BLEND_MAX", /* 5 */
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};
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static const char *PIPE_BLENDFACTOR_STRING[] = {
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"SRC_COLOR", /* 0 */
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"DST_COLOR", /* 1 */
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"CONST_COLOR", /* 2 */
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"ZERO", /* 3 */
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"UNKNOWN_4", /* 4 */
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"SRC2_COLOR", /* 5 */
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"UNKNOWN_6", /* 6 */
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"SRC_ALPHA_SAT", /* 7 */
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"INV_SRC_COLOR", /* 8 */
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"INV_DST_COLOR", /* 9 */
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"INV_CONST_COLOR", /* 10 */
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"ONE", /* 11 */
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"UNKNOWN_12", /* 12 */
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"INV_SRC2_COLOR", /* 13 */
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"UNKNOWN_14", /* 14 */
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"UNKNOWN_15", /* 15 */
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"SRC_ALPHA", /* 16 */
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"DST_ALPHA", /* 17 */
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"CONST_ALPHA", /* 18 */
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"UNKNOWN_19", /* 19 */
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"UNKNOWN_20", /* 20 */
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"SRC2_ALPHA", /* 21 */
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"UNKNOWN_22", /* 22 */
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"UNKNOWN_23", /* 23 */
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"INV_SRC_ALPHA", /* 24 */
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"INV_DST_ALPHA", /* 25 */
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"INV_CONST_ALPHA", /* 26 */
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"UNKNOWN_27", /* 27 */
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"UNKNOWN_28", /* 28 */
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"INV_SRC2_ALPHA", /* 29 */
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};
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static const char *LIMA_WRAP_MODE_STRING[] = {
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"TEX_WRAP_REPEAT", /* 0 */
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"TEX_WRAP_CLAMP_TO_EDGE", /* 1 */
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"TEX_WRAP_CLAMP", /* 2 */
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"TEX_WRAP_CLAMP_TO_BORDER", /* 3 */
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"TEX_WRAP_MIRROR_REPEAT", /* 4 */
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"TEX_WRAP_MIRROR_CLAMP_TO_EDGE", /* 5 */
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"TEX_WRAP_MIRROR_CLAMP", /* 6 */
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"TEX_WRAP_MIRROR_CLAMP_TO_BORDER", /* 7 */
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};
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static inline const char
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*lima_get_compare_func_string(int func) {
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if ((func >= 0) && (func <= 7))
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return PIPE_COMPARE_FUNC_STRING[func];
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else
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return "UNKNOWN";
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}
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static inline const char
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*lima_get_stencil_op_string(int func) {
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if ((func >= 0) && (func <= 7))
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return PIPE_STENCIL_OP_STRING[func];
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else
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return "UNKNOWN";
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}
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static inline const char
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*lima_get_blend_func_string(int func) {
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if ((func >= 0) && (func <= 5))
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return PIPE_BLEND_FUNC_STRING[func];
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else
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return "UNKNOWN";
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}
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static inline const char
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*lima_get_blendfactor_string(int func) {
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if ((func >= 0) && (func <= 26))
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return PIPE_BLENDFACTOR_STRING[func];
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else
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return "UNKNOWN";
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}
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static inline const char
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*lima_get_wrap_mode_string(int mode) {
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if ((mode >= 0) && (mode <= 7))
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return LIMA_WRAP_MODE_STRING[mode];
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else
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return "UNKNOWN";
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}
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void lima_parse_shader(FILE *fp, uint32_t *data, int size, bool is_frag);
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void lima_parse_vs(FILE *fp, uint32_t *data, int size, uint32_t start);
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void lima_parse_plbu(FILE *fp, uint32_t *data, int size, uint32_t start);
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void lima_parse_render_state(FILE *fp, uint32_t *data, int size, uint32_t start);
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void lima_parse_texture_descriptor(FILE *fp, uint32_t *data, int size, uint32_t start, uint32_t offset);
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#endif
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