Andrew Eikum : winebus.sys: Pack hatswitch values into button bytes.
Module: wine Branch: master Commit: 5ff326f80147f4608fd64ad37510d0cff330676e URL: https://source.winehq.org/git/wine.git/?a=commit;h=5ff326f80147f4608fd64ad37... Author: Andrew Eikum <aeikum(a)codeweavers.com> Date: Tue May 7 09:02:22 2019 -0500 winebus.sys: Pack hatswitch values into button bytes. Signed-off-by: Andrew Eikum <aeikum(a)codeweavers.com> Signed-off-by: Alexandre Julliard <julliard(a)winehq.org> --- dlls/winebus.sys/bus_sdl.c | 80 ++++++++++++++++++++++++++++--------------- dlls/winebus.sys/controller.h | 2 +- 2 files changed, 53 insertions(+), 29 deletions(-) diff --git a/dlls/winebus.sys/bus_sdl.c b/dlls/winebus.sys/bus_sdl.c index 59c1698..cd69f83 100644 --- a/dlls/winebus.sys/bus_sdl.c +++ b/dlls/winebus.sys/bus_sdl.c @@ -123,7 +123,7 @@ struct platform_private int button_start; int axis_start; int ball_start; - int hat_start; + int hat_bit_offs; /* hatswitches are reported in the same bytes as buttons */ int report_descriptor_size; BYTE *report_descriptor; @@ -164,10 +164,6 @@ static const BYTE CONTROLLER_BUTTONS[] = { 0x95, CONTROLLER_NUM_BUTTONS, /* REPORT_COUNT (11) */ 0x75, 0x01, /* REPORT_SIZE (1) */ 0x81, 0x02, /* INPUT (Data,Var,Abs) */ - /* padding */ - 0x95, 0x05, /* REPORT_COUNT (5) */ - 0x75, 0x01, /* REPORT_SIZE (1) */ - 0x81, 0x03, /* INPUT (Cnst,Var,Abs) */ }; static const BYTE CONTROLLER_AXIS [] = { @@ -302,22 +298,50 @@ static void set_ball_value(struct platform_private *ext, int index, int value1, static void set_hat_value(struct platform_private *ext, int index, int value) { - int offset; - offset = ext->hat_start + index; + int byte = ext->button_start + (ext->hat_bit_offs + 4 * index) / 8; + int bit_offs = (ext->hat_bit_offs + 4 * index) % 8; + int num_low_bits, num_high_bits; + unsigned char val, low_mask, high_mask; + + /* 4-bit hatswitch value is packed into button bytes */ + if (bit_offs <= 4) + { + num_low_bits = 4; + num_high_bits = 0; + low_mask = 0xf; + high_mask = 0; + } + else + { + num_low_bits = 8 - bit_offs; + num_high_bits = 4 - num_low_bits; + low_mask = (1 << num_low_bits) - 1; + high_mask = (1 << num_high_bits) - 1; + } + switch (value) { /* 8 1 2 * 7 0 3 * 6 5 4 */ - case SDL_HAT_CENTERED: ext->report_buffer[offset] = 0; break; - case SDL_HAT_UP: ext->report_buffer[offset] = 1; break; - case SDL_HAT_RIGHTUP: ext->report_buffer[offset] = 2; break; - case SDL_HAT_RIGHT: ext->report_buffer[offset] = 3; break; - case SDL_HAT_RIGHTDOWN: ext->report_buffer[offset] = 4; break; - case SDL_HAT_DOWN: ext->report_buffer[offset] = 5; break; - case SDL_HAT_LEFTDOWN: ext->report_buffer[offset] = 6; break; - case SDL_HAT_LEFT: ext->report_buffer[offset] = 7; break; - case SDL_HAT_LEFTUP: ext->report_buffer[offset] = 8; break; + case SDL_HAT_CENTERED: val = 0; break; + case SDL_HAT_UP: val = 1; break; + case SDL_HAT_RIGHTUP: val = 2; break; + case SDL_HAT_RIGHT: val = 3; break; + case SDL_HAT_RIGHTDOWN: val = 4; break; + case SDL_HAT_DOWN: val = 5; break; + case SDL_HAT_LEFTDOWN: val = 6; break; + case SDL_HAT_LEFT: val = 7; break; + case SDL_HAT_LEFTUP: val = 8; break; + default: return; + } + + ext->report_buffer[byte] &= ~(low_mask << bit_offs); + ext->report_buffer[byte] |= (val & low_mask) << bit_offs; + if (high_mask) + { + ext->report_buffer[byte + 1] &= ~high_mask; + ext->report_buffer[byte + 1] |= val & high_mask; } } @@ -423,19 +447,17 @@ static BOOL build_report_descriptor(struct platform_private *ext) if (button_count) { descript_size += sizeof(REPORT_BUTTONS); - if (button_count % 8) - descript_size += sizeof(REPORT_PADDING); - report_size += (button_count + 7) / 8; } hat_count = pSDL_JoystickNumHats(ext->sdl_joystick); - ext->hat_start = report_size; + ext->hat_bit_offs = button_count; if (hat_count) { descript_size += sizeof(REPORT_HATSWITCH); - report_size += hat_count; } + report_size += (button_count + hat_count * 4 + 7) / 8; + descript_size += test_haptic(ext); TRACE("Report Descriptor will be %i bytes\n", descript_size); @@ -468,11 +490,6 @@ static BOOL build_report_descriptor(struct platform_private *ext) if (button_count) { report_ptr = add_button_block(report_ptr, 1, button_count); - if (button_count % 8) - { - BYTE padding = 8 - (button_count % 8); - report_ptr = add_padding_block(report_ptr, padding); - } } if (hat_count) report_ptr = add_hatswitch(report_ptr, hat_count); @@ -540,9 +557,11 @@ static BOOL build_mapped_report_descriptor(struct platform_private *ext) ext->axis_start = 0; ext->button_start = CONTROLLER_NUM_AXES * sizeof(WORD); - ext->hat_start = ext->button_start + (CONTROLLER_NUM_BUTTONS + 7) / 8; + ext->hat_bit_offs = CONTROLLER_NUM_BUTTONS; - ext->buffer_length = (CONTROLLER_NUM_BUTTONS + 7) / 8 + CONTROLLER_NUM_AXES * sizeof(WORD) + CONTROLLER_NUM_HATSWITCHES; + ext->buffer_length = (CONTROLLER_NUM_BUTTONS + CONTROLLER_NUM_HATSWITCHES * 4 + 7) / 8 + + CONTROLLER_NUM_AXES * sizeof(WORD) + + 2/* unknown constant*/; TRACE("Report Descriptor will be %i bytes\n", descript_size); TRACE("Report will be %i bytes\n", ext->buffer_length); @@ -566,6 +585,7 @@ static BOOL build_mapped_report_descriptor(struct platform_private *ext) memcpy(report_ptr, CONTROLLER_BUTTONS, sizeof(CONTROLLER_BUTTONS)); report_ptr += sizeof(CONTROLLER_BUTTONS); report_ptr = add_hatswitch(report_ptr, 1); + report_ptr = add_padding_block(report_ptr, 16);/* unknown constant */ report_ptr += build_haptic(ext, report_ptr); memcpy(report_ptr, REPORT_TAIL, sizeof(REPORT_TAIL)); @@ -584,6 +604,10 @@ static BOOL build_mapped_report_descriptor(struct platform_private *ext) set_hat_value(ext, 0, compose_dpad_value(ext->sdl_controller)); + /* unknown constant */ + ext->report_buffer[12] = 0x89; + ext->report_buffer[13] = 0xc5; + return TRUE; } diff --git a/dlls/winebus.sys/controller.h b/dlls/winebus.sys/controller.h index 5fce16b..293290d 100644 --- a/dlls/winebus.sys/controller.h +++ b/dlls/winebus.sys/controller.h @@ -79,7 +79,7 @@ static const BYTE REPORT_HATSWITCH[] = { 0x25, 0x08, /* LOGICAL_MAXIMUM (0x08) */ 0x35, 0x00, /* PHYSICAL_MINIMUM (0) */ 0x45, 0x08, /* PHYSICAL_MAXIMUM (8) */ - 0x75, 0x08, /* REPORT_SIZE (8) */ + 0x75, 0x04, /* REPORT_SIZE (4) */ 0x95, 0x01, /* REPORT_COUNT (1) */ 0x81, 0x02, /* INPUT (Data,Var,Abs) */ };
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Alexandre Julliard