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d80b1b8119
This saved about 1.6 ms per frame in the city for me (~1.3 saved from not doing sky twice, 0.3 saved in format lookup tables). The big texture animator is about 1.0 ms. 
226 lines
9.9 KiB
C++
226 lines
9.9 KiB
C++
#pragma once
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#include "common/common_types.h"
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#include "common/util/Assert.h"
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/*!
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* Convert from a pixel location in a texture (x, y, texture buffer width) to VRAM address (byte).
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* Uses the PSMCT32 format.
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* This format is used either to store 8-bit RGBA (texture palettes) or to copy memory.
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* See Ch. 8, Details of GS Local Memory for these tables.
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*/
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inline u32 psmct32_addr(u32 x, u32 y, u32 width) {
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// XXX_col refers to which XXX you're in (screen)
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// XXX refers to which XXX you're in (memory)
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// XXX_x refers to the pixel within the XXX
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// first, determine the page
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u32 pages_per_row = width / 64;
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u32 page_col = x / 64;
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u32 page_row = y / 32;
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u32 page_x = x % 64;
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u32 page_y = y % 32;
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u32 page = page_col + page_row * pages_per_row;
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// next the block
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u32 block_col = page_x / 8;
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u32 block_row = page_y / 8;
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u32 block_x = page_x % 8;
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u32 block_y = page_y % 8;
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const u32 psm32_table[4][8] = {{0, 1, 4, 5, 16, 17, 20, 21},
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{2, 3, 6, 7, 18, 19, 22, 23},
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{8, 9, 12, 13, 24, 25, 28, 29},
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{10, 11, 14, 15, 26, 27, 30, 31}};
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u32 block = psm32_table[block_row][block_col];
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// next the column (there's only one "column" per column)
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u32 col_row = block_y / 2;
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u32 col_y = block_y % 2;
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u32 col_x = block_x;
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// next the pixel
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const u32 psm32_pix_table[2][8] = {{0, 1, 4, 5, 8, 9, 12, 13}, {2, 3, 6, 7, 10, 11, 14, 15}};
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u32 pixel = psm32_pix_table[col_y][col_x];
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// now the sum
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return ((page * 64 * 32) + (block * 8 * 8) + (col_row * 8 * 2) + pixel) * 4;
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}
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/*!
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* Convert from a pixel location in a texture (x, y, texture buffer width) to VRAM address (byte).
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* Uses the PSMT8 format.
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* This format is used either to store 8-bit palette indices, used in most textures.
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* See Ch. 8, Details of GS Local Memory for these tables.
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*/
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inline u32 psmt8_addr(u32 x, u32 y, u32 width) {
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// page is 128, 64
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// block is 16, 16
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// column is 16, 4
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// first determine the page
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// Note: not actually sure what the GS does here...
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u32 pages_per_row = std::max(1u, width / 128);
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u32 page_col = x / 128;
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u32 page_row = y / 64;
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u32 page_x = x % 128;
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u32 page_y = y % 64;
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u32 page = page_col + page_row * pages_per_row;
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// next block
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u32 block_col = page_x / 16;
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u32 block_row = page_y / 16;
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u32 block_x = page_x % 16;
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u32 block_y = page_y % 16;
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const u32 psm32_table[4][8] = {{0, 1, 4, 5, 16, 17, 20, 21},
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{2, 3, 6, 7, 18, 19, 22, 23},
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{8, 9, 12, 13, 24, 25, 28, 29},
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{10, 11, 14, 15, 26, 27, 30, 31}};
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u32 block = psm32_table[block_row][block_col]; // it's the same table!!!
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// both columns and pixels within columns.
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const uint8_t pix_table[16][16] = {
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{0, 4, 16, 20, 32, 36, 48, 52, 2, 6, 18, 22, 34, 38, 50, 54},
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{8, 12, 24, 28, 40, 44, 56, 60, 10, 14, 26, 30, 42, 46, 58, 62},
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{33, 37, 49, 53, 1, 5, 17, 21, 35, 39, 51, 55, 3, 7, 19, 23},
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{41, 45, 57, 61, 9, 13, 25, 29, 43, 47, 59, 63, 11, 15, 27, 31},
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{96, 100, 112, 116, 64, 68, 80, 84, 98, 102, 114, 118, 66, 70, 82, 86},
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{104, 108, 120, 124, 72, 76, 88, 92, 106, 110, 122, 126, 74, 78, 90, 94},
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{65, 69, 81, 85, 97, 101, 113, 117, 67, 71, 83, 87, 99, 103, 115, 119},
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{73, 77, 89, 93, 105, 109, 121, 125, 75, 79, 91, 95, 107, 111, 123, 127},
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{128, 132, 144, 148, 160, 164, 176, 180, 130, 134, 146, 150, 162, 166, 178, 182},
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{136, 140, 152, 156, 168, 172, 184, 188, 138, 142, 154, 158, 170, 174, 186, 190},
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{161, 165, 177, 181, 129, 133, 145, 149, 163, 167, 179, 183, 131, 135, 147, 151},
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{169, 173, 185, 189, 137, 141, 153, 157, 171, 175, 187, 191, 139, 143, 155, 159},
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{224, 228, 240, 244, 192, 196, 208, 212, 226, 230, 242, 246, 194, 198, 210, 214},
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{232, 236, 248, 252, 200, 204, 216, 220, 234, 238, 250, 254, 202, 206, 218, 222},
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{193, 197, 209, 213, 225, 229, 241, 245, 195, 199, 211, 215, 227, 231, 243, 247},
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{201, 205, 217, 221, 233, 237, 249, 253, 203, 207, 219, 223, 235, 239, 251, 255},
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};
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u32 pixel = pix_table[block_y][block_x];
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return (page * 128 * 64) + (block * 16 * 16) + pixel;
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}
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inline u32 psmct16_addr(u32 x, u32 y, u32 width) {
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// page is 64x64
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// block is 16x8
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// column is 16x2
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// page
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u32 pages_per_row = width / 64;
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u32 page_col = x / 64;
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u32 page_row = y / 64;
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u32 page_x = x % 64;
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u32 page_y = y % 64;
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u32 page = page_col + page_row * pages_per_row;
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// block
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u32 block_col = page_x / 16;
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u32 block_row = page_y / 8;
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u32 block_x = page_x % 16;
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u32 block_y = page_y % 8;
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const u32 psm16_table[8][4] = {{0, 2, 8, 10}, {1, 3, 9, 11}, {4, 6, 12, 14},
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{5, 7, 13, 15}, {16, 18, 24, 26}, {17, 19, 25, 27},
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{20, 22, 28, 30}, {21, 23, 29, 31}};
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u32 block = psm16_table[block_row][block_col];
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const uint8_t pix_tabel[8][16] = {
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{0, 2, 8, 10, 16, 18, 24, 26, 1, 3, 9, 11, 17, 19, 25, 27},
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{4, 6, 12, 14, 20, 22, 28, 30, 5, 7, 13, 15, 21, 23, 29, 31},
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{32, 34, 40, 42, 48, 50, 56, 58, 33, 35, 41, 43, 49, 51, 57, 59},
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{36, 38, 44, 46, 52, 54, 60, 62, 37, 39, 45, 47, 53, 55, 61, 63},
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{64, 66, 72, 74, 80, 82, 88, 90, 65, 67, 73, 75, 81, 83, 89, 91},
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{68, 70, 76, 78, 84, 86, 92, 94, 69, 71, 77, 79, 85, 87, 93, 95},
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{96, 98, 104, 106, 112, 114, 120, 122, 97, 99, 105, 107, 113, 115, 121, 123},
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{100, 102, 108, 110, 116, 118, 124, 126, 101, 103, 109, 111, 117, 119, 125, 127},
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};
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u32 pixel = pix_tabel[block_y][block_x];
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return 2 * ((page * 64 * 64) + (block * 16 * 8) + pixel);
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}
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inline u32 psmt4_addr_half_byte(u32 x, u32 y, u32 width) {
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// page is 128, 128
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// block is 32, 16
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// column is 32, 4
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// first determine the page
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u32 pages_per_row = width / 128;
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u32 page_col = x / 128;
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u32 page_row = y / 128;
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u32 page_x = x % 128;
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u32 page_y = y % 128;
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u32 page = page_col + page_row * pages_per_row;
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// next block
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u32 block_col = page_x / 32;
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u32 block_row = page_y / 16;
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u32 block_x = page_x % 32;
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u32 block_y = page_y % 16;
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const u32 psm4_table[8][4] = {{0, 2, 8, 10}, {1, 3, 9, 11}, {4, 6, 12, 14},
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{5, 7, 13, 15}, {16, 18, 24, 26}, {17, 19, 25, 27},
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{20, 22, 28, 30}, {21, 23, 29, 31}};
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ASSERT(block_row < 8);
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ASSERT(block_col < 4);
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u32 block = psm4_table[block_row][block_col]; // it's the same table!!!
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// both columns and pixels within columns.
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const uint16_t pix_table[16][32] = {
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{0, 8, 32, 40, 64, 72, 96, 104, 2, 10, 34, 42, 66, 74, 98, 106,
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4, 12, 36, 44, 68, 76, 100, 108, 6, 14, 38, 46, 70, 78, 102, 110},
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{16, 24, 48, 56, 80, 88, 112, 120, 18, 26, 50, 58, 82, 90, 114, 122,
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20, 28, 52, 60, 84, 92, 116, 124, 22, 30, 54, 62, 86, 94, 118, 126},
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{65, 73, 97, 105, 1, 9, 33, 41, 67, 75, 99, 107, 3, 11, 35, 43,
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69, 77, 101, 109, 5, 13, 37, 45, 71, 79, 103, 111, 7, 15, 39, 47},
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{81, 89, 113, 121, 17, 25, 49, 57, 83, 91, 115, 123, 19, 27, 51, 59,
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85, 93, 117, 125, 21, 29, 53, 61, 87, 95, 119, 127, 23, 31, 55, 63},
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{192, 200, 224, 232, 128, 136, 160, 168, 194, 202, 226, 234, 130, 138, 162, 170,
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196, 204, 228, 236, 132, 140, 164, 172, 198, 206, 230, 238, 134, 142, 166, 174},
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{208, 216, 240, 248, 144, 152, 176, 184, 210, 218, 242, 250, 146, 154, 178, 186,
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212, 220, 244, 252, 148, 156, 180, 188, 214, 222, 246, 254, 150, 158, 182, 190},
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{129, 137, 161, 169, 193, 201, 225, 233, 131, 139, 163, 171, 195, 203, 227, 235,
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133, 141, 165, 173, 197, 205, 229, 237, 135, 143, 167, 175, 199, 207, 231, 239},
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{145, 153, 177, 185, 209, 217, 241, 249, 147, 155, 179, 187, 211, 219, 243, 251,
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149, 157, 181, 189, 213, 221, 245, 253, 151, 159, 183, 191, 215, 223, 247, 255},
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{256, 264, 288, 296, 320, 328, 352, 360, 258, 266, 290, 298, 322, 330, 354, 362,
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260, 268, 292, 300, 324, 332, 356, 364, 262, 270, 294, 302, 326, 334, 358, 366},
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{272, 280, 304, 312, 336, 344, 368, 376, 274, 282, 306, 314, 338, 346, 370, 378,
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276, 284, 308, 316, 340, 348, 372, 380, 278, 286, 310, 318, 342, 350, 374, 382},
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{321, 329, 353, 361, 257, 265, 289, 297, 323, 331, 355, 363, 259, 267, 291, 299,
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325, 333, 357, 365, 261, 269, 293, 301, 327, 335, 359, 367, 263, 271, 295, 303},
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{337, 345, 369, 377, 273, 281, 305, 313, 339, 347, 371, 379, 275, 283, 307, 315,
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341, 349, 373, 381, 277, 285, 309, 317, 343, 351, 375, 383, 279, 287, 311, 319},
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{448, 456, 480, 488, 384, 392, 416, 424, 450, 458, 482, 490, 386, 394, 418, 426,
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452, 460, 484, 492, 388, 396, 420, 428, 454, 462, 486, 494, 390, 398, 422, 430},
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{464, 472, 496, 504, 400, 408, 432, 440, 466, 474, 498, 506, 402, 410, 434, 442,
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468, 476, 500, 508, 404, 412, 436, 444, 470, 478, 502, 510, 406, 414, 438, 446},
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{385, 393, 417, 425, 449, 457, 481, 489, 387, 395, 419, 427, 451, 459, 483, 491,
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389, 397, 421, 429, 453, 461, 485, 493, 391, 399, 423, 431, 455, 463, 487, 495},
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{401, 409, 433, 441, 465, 473, 497, 505, 403, 411, 435, 443, 467, 475, 499, 507,
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405, 413, 437, 445, 469, 477, 501, 509, 407, 415, 439, 447, 471, 479, 503, 511},
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};
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ASSERT(block_y < 16);
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ASSERT(block_x < 32);
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u32 pixel = pix_table[block_y][block_x];
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return (page * 128 * 128) + (block * 32 * 16) + pixel;
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}
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inline u32 rgba16_to_rgba32(u32 in) {
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float ratio = 255.0 / 31.0;
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u32 r = (in & 0b11111) * ratio;
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u32 g = ((in >> 5) & 0b11111) * ratio;
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u32 b = ((in >> 10) & 0b11111) * ratio;
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// rgba has only 1 bit for a and how it gets converted depends on the value of ta1.
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// for now, it looks like they always use 0x80, so this is fine.
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u32 a = (in & 0x8000) ? 0x80 : 0;
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return (a << 24) | (b << 16) | (g << 8) | r;
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}
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// texture format enums
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enum class PSM { PSMCT32 = 0x0, PSMCT16 = 0x02, PSMT8 = 0x13, PSMT4 = 0x14 };
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// clut format enums
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enum class CPSM { PSMCT32 = 0x0, PSMCT16 = 0x02 };
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