Skip to content

Commit

Permalink
added color format enum and a bit of documentation how its constructed.
Browse files Browse the repository at this point in the history
  • Loading branch information
@Captnoord
Captnoord committed Sep 4, 2014
1 parent 1e88abb commit 57624a6
Show file tree
Hide file tree
Showing 2 changed files with 237 additions and 138 deletions.
139 changes: 1 addition & 138 deletions lib/gdi/bcm.cpp
View file
Expand Up @@ -10,7 +10,7 @@
#include <sys/mman.h>
#include <sys/ioctl.h>

#define FBIO_ACCEL 0x23
#include "bcm.h"

static unsigned int displaylist[1024];
static int ptr;
Expand Down Expand Up @@ -80,142 +80,6 @@ bool bcm_accel_has_alphablending()
return supportblendingflags;
}

enum bcm_color_format
{
ARGB8888 = 0x07e48888,
INDEXED_8BPP = 0x12e40008
};

/* instruction pipeline documentations... or at least a bit... */
enum bcm_accel
{
SRC_ADDR = 0x00,
SRC_PITCH = 0x01, // or STRIDE...
SRC_WIDTH = 0x02,
SRC_HEIGHT = 0x03,
SRC_COLOR_FMT = 0x04, // ARGB 8888 = 0x7e48888, indexed palette 8bit = 0x12e40008
SRC_SURFACE = 0x05, // set source surface (based on last parameters)
UNK_06 = 0x06,
UNK_07 = 0x07,
UNK_08 = 0x08,
UNK_09 = 0x09,
UNK_0A = 0x0A,
UNK_0B = 0x0B,
UNK_0C = 0x0C,
UNK_0D = 0x0D,
UNK_0E = 0x0E,
UNK_0F = 0x0F,
UNK_10 = 0x10,
UNK_11 = 0x11,
UNK_12 = 0x12,
UNK_13 = 0x13,
UNK_14 = 0x14,
UNK_15 = 0x15,
UNK_16 = 0x16,
UNK_17 = 0x17,
UNK_18 = 0x18,
UNK_19 = 0x19,
UNK_1A = 0x1A,
UNK_1B = 0x1B,
UNK_1C = 0x1C,
UNK_1D = 0x1D,
UNK_1E = 0x1E,
UNK_1F = 0x1F,
UNK_20 = 0x20,
UNK_21 = 0x21,
UNK_22 = 0x22,
UNK_23 = 0x23,
UNK_24 = 0x24,
UNK_25 = 0x25,
UNK_26 = 0x26,
UNK_27 = 0x27,
UNK_28 = 0x28,
UNK_29 = 0x29,
UNK_2A = 0x2A,
UNK_2B = 0x2B,
UNK_2C = 0x2C,
SET_RECT_COLOR = 0x2D, /* \note this name is guessed */
SET_RECT_X = 0x2E, // P(0x2e, dst_x); // prepare output rect
SET_RECT_Y = 0x2F, // P(0x2f, dst_y);
SET_RECT_WIDTH = 0x30, // P(0x30, dwidth);
SET_RECT_HEIGHT = 0x31, // P(0x31, dheight);
SET_RECT_AS_SRC = 0x32, // C(0x32); // set this rect as source rect
UNK_33 = 0x33,
UNK_34 = 0x34,
UNK_35 = 0x35,
UNK_36 = 0x36,
UNK_37 = 0x37,
UNK_38 = 0x38,
UNK_39 = 0x39,
UNK_3A = 0x3A,
UNK_3B = 0x3B,
UNK_3C = 0x3C,
UNK_3D = 0x3D,
UNK_3E = 0x3E,
UNK_3F = 0x3F,
UNK_40 = 0x40,
UNK_41 = 0x41,
UNK_42 = 0x42,
RESET_SRC = 0x43, // clear to reset ( reset the source )
UNK_44 = 0x44,
RESET_DST = 0x45, // clear to reset ( reset the destination )
UNK_46 = 0x46,
UNK_47 = 0x47,
UNK_48 = 0x48,
UNK_49 = 0x49,
UNK_4A = 0x4A,
UNK_4B = 0x4B,
UNK_4C = 0x4C,
UNK_4D = 0x4D,
UNK_4E = 0x4E,
UNK_4F = 0x4F,
UNK_50 = 0x50,
UNK_51 = 0x51,
UNK_52 = 0x52,
RESET_DST = 0x53, // clear to reset ( reset the destination )
UNK_54 = 0x54,
UNK_55 = 0x55,
UNK_56 = 0x56,
UNK_57 = 0x57,
UNK_58 = 0x58,
UNK_59 = 0x59,
UNK_5A = 0x5A,
RESET_PATTERN = 0x5B, // clear to reset ( isn't this reset pattern buffer? )
RESET_BLEND = 0x67, // clear to reset
SET_OUTPUT_SURFACE = 0x69, // set output surface
UNK_6A = 0x6A,
UNK_6B = 0x6B,
UNK_6C = 0x6C,
UNK_6D = 0x6D,
SET_RECT_AS_OUTPUT = 0x6E, // C(0x6e); // set this rect as output rect
COLOR_KEYING_UNK1 = 0x6F, // P(0x6F, 0);
COLOR_KEYING_UNK2 = 0x70, // P(0x70, 0);
COLOR_KEYING_UNK3 = 0x71, // P(0x71, 2);
COLOR_KEYING_UNK4 = 0x72, // P(0x72, 2);
COLOR_KEYING_SELECT = 0x73, // C(0x73); // select color keying (blue screen?)
UNK_74 = 0x74,
RESET_OUTPUT = 0x75, // reset the output, clear to reset
EXEC_LIST = 0x77, // clear to execute the instruction list.
SRC_PALETTE_SIZE = 0x78, // our current implementation has 256 colors
SRC_PALETTE_ADDR = 0x79,
SRC_PALETTE_COLOR_FMT = 0x7A, // same as SRC_COLOR_FMT but I don't think a palette could have a palette 0x7e48888
UNK_7B = 0x7B,
UNK_7C = 0x7C,
UNK_7D = 0x7D,
UNK_7E = 0x7E,
UNK_7F = 0x7F,
/*!
* apply blend
* param: blend flags:
* - ALPHATEST = 1
* - ALPHABLEND = 2
* - SCALE = 4
* - KEEP_ASPECT_RATIO = 8
* \todo figure out what the blend flags actually are.
*/
SET_BLEND_FLAGS = 0x80,
};

void bcm_accel_blit(
int src_addr, int src_width, int src_height, int src_stride, int src_format,
int dst_addr, int dst_width, int dst_height, int dst_stride,
Expand Down Expand Up @@ -329,4 +193,3 @@ void bcm_accel_fill(

exec_list();
}

236 changes: 236 additions & 0 deletions lib/gdi/bcm.h
View file
@@ -0,0 +1,236 @@
#ifndef __lib_gdi_bcm_h
#define __lib_gdi_bcm_h

/* Broadcom proprietary ioctl command for accelerated graphic api */
#define FBIO_ACCEL 0x23


/*!
* \note thanks for pastebin giving me the names http://pastebin.com/eFVRYbvx
* The rest of the value's are calculated based on the binary format.
*
* For this description the bits per channel (bpc) are numbered from 1 to 4 but this
* is only for readability.
*
* Example: BPXL_eA8_Y8_Cb8_Cr8 = 0xBE48888
*
* | 101111100100 | 1000 | 1000 | 1000 | 1000 |
* | type | exact meaning of type is currently unknown; I suspected it to have multiple identifiers (flags).
* | bpc 1| channel 1 bit count
* | bpc 2| channel 2 bit count
* | bpc 3| channel 3 bit count
* | bpc 4| channel 4 bit count
*/
enum BPXL_Format
{
BPXL_eA8_Y8_Cb8_Cr8 = 0x0BE48888,
BPXL_eCr8_Cb8_Y8_A8 = 0x0B1B8888,
BPXL_eY8_Cb8_Cr8_A8 = 0x0B398888,
BPXL_eA8_Cr8_Cb8_Y8 = 0x0BC68888,
BPXL_eCr8_Y18_Cb8_Y08 = 0x0A278888,
BPXL_eY18_Cr8_Y08_Cb8 = 0x0A728888,
BPXL_eY08_Cb8_Y18_Cr8 = 0x0AD88888,
BPXL_eCb8_Y08_Cr8_Y18 = 0x0A8D8888,
BPXL_eCb8_Y18_Cr8_Y08 = 0x0A2D8888,
BPXL_eY18_Cb8_Y08_Cr8 = 0x0A788888,
BPXL_eY08_Cr8_Y18_Cb8 = 0x0AD28888,
BPXL_eCr8_Y08_Cb8_Y18 = 0x0A878888,
BPXL_eY8 = 0x0AE40800,
BPXL_eCb8_Cr8 = 0x0AE40088,
BPXL_eCr8_Cb8 = 0x0AE10088,
BPXL_eX2_Cr10_Y10_Cb10 = 0x0AD22AAA,
BPXL_eX2_Y010_Cb10_Y110_X2_Cr10_Y010_Cb10_X2_Y110_Cr10_Y010_X2_Cb10_Y110_Cr10 = 0x2AD8AAAA,
BPXL_eCr10_Y110_Cb10_Y010 = 0x0A27AAAA,
BPXL_eY110_Cr10_Y010_Cb10 = 0x0A72AAAA,
BPXL_eY010_Cb10_Y110_Cr10 = 0x0AD8AAAA,
BPXL_eCb10_Y010_Cr10_Y110 = 0x0A8DAAAA,
BPXL_eCb10_Y110_Cr10_Y010 = 0x0A2DAAAA,
BPXL_eY110_Cb10_Y010_Cr10 = 0x0A78AAAA,
BPXL_eY010_Cr10_Y110_Cb10 = 0x0AD2AAAA,
BPXL_eCr10_Y010_Cb10_Y110 = 0x0A87AAAA,
BPXL_eA8_R8_G8_B8 = 0x07E48888, // supported.
BPXL_eA8_B8_G8_R8 = 0x07C68888,
BPXL_eR8_G8_B8_A8 = 0x07398888,
BPXL_eB8_G8_R8_A8 = 0x071B8888,
BPXL_eX8_R8_G8_B8 = 0x06E48888,
BPXL_eX8_B8_G8_R8 = 0x06C68888,
BPXL_eR8_G8_B8_X8 = 0x06398888,
BPXL_eB8_G8_R8_X8 = 0x061B8888,
BPXL_eR8_G8_B8 = 0x06240888,
BPXL_eB8_G8_R8 = 0x06060888,
BPXL_eR5_G6_B5 = 0x06E40565,
BPXL_eB5_G6_R5 = 0x06C60565,
BPXL_eA1_R5_G5_B5 = 0x07E41555,
BPXL_eA1_B5_G5_R5 = 0x07C61555,
BPXL_eR5_G5_B5_A1 = 0x07395551,
BPXL_eB5_G5_R5_A1 = 0x071B5551,
BPXL_eX1_R5_G5_B5 = 0x06E41555,
BPXL_eX1_B5_G5_R5 = 0x06C61555,
BPXL_eR5_G5_B5_X1 = 0x06395551,
BPXL_eB5_G5_R5_X1 = 0x061B5551,
BPXL_eW1_R5_G5_B5 = 0x47E41555,
BPXL_eW1_B5_G5_R5 = 0x47C61555,
BPXL_eR5_G5_B5_W1 = 0x47395551,
BPXL_eB5_G5_R5_W1 = 0x471B5551,
BPXL_eA4_R4_G4_B4 = 0x07E44444,
BPXL_eA4_B4_G4_R4 = 0x07C64444,
BPXL_eR4_G4_B4_A4 = 0x07394444,
BPXL_eB4_G4_R4_A4 = 0x071B4444,
BPXL_eX4_R4_G4_B4 = 0x06E44444,
BPXL_eX4_B4_G4_R4 = 0x06C64444,
BPXL_eR4_G4_B4_X4 = 0x06394444,
BPXL_eB4_G4_R4_X4 = 0x061B4444,
BPXL_eP1 = 0x12E40001,
BPXL_eP2 = 0x12E40002, // supported (possibly).
BPXL_eP4 = 0x12E40004,
BPXL_eP8 = 0x12E40008, // supported.
BPXL_eA8_P8 = 0x13E48008,
BPXL_eY8_P8 = 0x1AE40808,
BPXL_eA1 = 0x01390001,
BPXL_eA2 = 0x01390002,
BPXL_eA4 = 0x01390004,
BPXL_eA8 = 0x01390008,
BPXL_eW1 = 0x41390001,
BPXL_eL8 = 0x22E40008,
BPXL_eL8_A8 = 0x07390088,
BPXL_eZ16 = 0x20000088,
BPXL_eL4_A4 = 0x07390044,
BPXL_eL15_L05_A6 = 0x07390556,
BPXL_INVALID = 0x0,
};

/* Broadcom accelerated graphic instructions.
*/
enum bcm_accel
{
SRC_ADDR = 0x00,
SRC_PITCH = 0x01, // or STRIDE, comments are not very conclusive.
SRC_WIDTH = 0x02,
SRC_HEIGHT = 0x03,
SRC_COLOR_FMT = 0x04, // used with: BPXL_eA8_R8_G8_B8 and BPXL_eP8
SRC_SURFACE = 0x05, // set source surface (based on last parameters)
UNK_06 = 0x06,
UNK_07 = 0x07,
UNK_08 = 0x08,
UNK_09 = 0x09,
UNK_0A = 0x0A,
UNK_0B = 0x0B,
UNK_0C = 0x0C,
UNK_0D = 0x0D,
UNK_0E = 0x0E,
UNK_0F = 0x0F,
UNK_10 = 0x10,
UNK_11 = 0x11,
UNK_12 = 0x12,
UNK_13 = 0x13,
UNK_14 = 0x14,
UNK_15 = 0x15,
UNK_16 = 0x16,
UNK_17 = 0x17,
UNK_18 = 0x18,
UNK_19 = 0x19,
UNK_1A = 0x1A,
UNK_1B = 0x1B,
UNK_1C = 0x1C,
UNK_1D = 0x1D,
UNK_1E = 0x1E,
UNK_1F = 0x1F,
UNK_20 = 0x20,
UNK_21 = 0x21,
UNK_22 = 0x22,
UNK_23 = 0x23,
UNK_24 = 0x24,
UNK_25 = 0x25,
UNK_26 = 0x26,
UNK_27 = 0x27,
UNK_28 = 0x28,
UNK_29 = 0x29,
UNK_2A = 0x2A,
UNK_2B = 0x2B,
UNK_2C = 0x2C,
SET_RECT_COLOR = 0x2D, //! \note this name is guessed
SET_RECT_X = 0x2E, // prepare rect x
SET_RECT_Y = 0x2F, // prepare rect y
SET_RECT_WIDTH = 0x30, // prepare rect width
SET_RECT_HEIGHT = 0x31, // prepare rect height
SET_RECT_AS_SRC = 0x32, // set this rect as source rect
UNK_33 = 0x33,
UNK_34 = 0x34,
UNK_35 = 0x35,
UNK_36 = 0x36,
UNK_37 = 0x37,
UNK_38 = 0x38,
UNK_39 = 0x39,
UNK_3A = 0x3A,
UNK_3B = 0x3B,
UNK_3C = 0x3C,
UNK_3D = 0x3D,
UNK_3E = 0x3E,
UNK_3F = 0x3F,
UNK_40 = 0x40,
UNK_41 = 0x41,
UNK_42 = 0x42,
RESET_SRC = 0x43, // clear to reset ( reset the source )
UNK_44 = 0x44,
RESET_DST = 0x45, // clear to reset ( reset the destination )
UNK_46 = 0x46,
UNK_47 = 0x47,
UNK_48 = 0x48,
UNK_49 = 0x49,
UNK_4A = 0x4A,
UNK_4B = 0x4B,
UNK_4C = 0x4C, // something with a color format?
UNK_4D = 0x4D,
UNK_4E = 0x4E,
UNK_4F = 0x4F,
UNK_50 = 0x50,
UNK_51 = 0x51,
UNK_52 = 0x52,
RESET_DST = 0x53, // clear to reset ( reset the destination )
UNK_54 = 0x54,
UNK_55 = 0x55,
UNK_56 = 0x56,
UNK_57 = 0x57,
UNK_58 = 0x58,
UNK_59 = 0x59,
UNK_5A = 0x5A,
RESET_PATTERN = 0x5B, // clear to reset ( isn't this reset pattern buffer? )
RESET_BLEND = 0x67, // clear to reset
SET_OUTPUT_SURFACE = 0x69, // set output surface
UNK_6A = 0x6A,
UNK_6B = 0x6B,
UNK_6C = 0x6C,
UNK_6D = 0x6D,
SET_RECT_AS_OUTPUT = 0x6E, // set this rect as output rect /see SET_RECT_AS_SRC
COLOR_KEYING_UNK1 = 0x6F, // set to 0 when used with color keying
COLOR_KEYING_UNK2 = 0x70, // set to 0 when used with color keying
COLOR_KEYING_UNK3 = 0x71, // set to 2 when used with color keying
COLOR_KEYING_UNK4 = 0x72, // set to 2 when used with color keying.
COLOR_KEYING_SELECT = 0x73, // select color keying (blue screen?)
UNK_74 = 0x74,
RESET_OUTPUT = 0x75, // reset the output, clear to reset
EXEC_LIST = 0x77, // clear to execute the instruction list.
SRC_PALETTE_SIZE = 0x78, // Set the palette size, which currently is 256 colors
SRC_PALETTE_ADDR = 0x79,
SRC_PALETTE_COLOR_FMT = 0x7A, // same as SRC_COLOR_FMT but I don't think a palette could have a palette 0x7e48888
UNK_7B = 0x7B,
UNK_7C = 0x7C,
UNK_7D = 0x7D,
UNK_7E = 0x7E,
UNK_7F = 0x7F,
/*!
* apply blend
* param: blend flags:
* - SUPPORTED = 0 returns non zero when alpha blending is supported (guessed).
* - ALPHATEST = 1
* - ALPHABLEND = 2
* - SCALE = 4
* - KEEP_ASPECT_RATIO = 8
*
* \todo figure out what the blend flags actually are, and how they should be used.
* \note these parameter enums are extracted from various places of the source code. It is by far not complete
*/
SET_BLEND_FLAGS = 0x80,
};

#endif // __lib_gdi_bcm_h

0 comments on commit 57624a6

Please sign in to comment.