diff options
Diffstat (limited to 'diff/viv-cmd-diff.c')
| -rw-r--r-- | diff/viv-cmd-diff.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/diff/viv-cmd-diff.c b/diff/viv-cmd-diff.c new file mode 100644 index 0000000..c895835 --- /dev/null +++ b/diff/viv-cmd-diff.c @@ -0,0 +1,170 @@ +#include <errno.h> +#include <error.h> +#include <stdio.h> +#include <stdint.h> +#include <string.h> +#include <sys/fcntl.h> +#include <unistd.h> + +#include "hw/state.xml.h" + +enum { + MAX_STATE = (0xffff + 1) * 4, +}; + +static uint32_t address_states[] = { + VIVS_FE_INDEX_STREAM_BASE_ADDR, + VIVS_FE_VERTEX_STREAM_BASE_ADDR, + 0x1410, + 0x1430, + 0x1460, + 0x1480, + 0x1608, + 0x1610, +}; + +struct state { + uint32_t state[MAX_STATE]; + uint32_t draw_op[6]; +}; + +static int read_state(int fd, struct state *state) +{ + uint32_t data[0x400]; + uint32_t word[2]; + unsigned num, addr, i; + int ret; + + do { + ret = read(fd, word, sizeof(word)); + if (ret <= 0) + return ret; + if (ret != sizeof(word)) + return -1; + + switch (word[0] >> 27) { + case 0: + break; + case 1: /* load state */ + num = (word[0] >> 16) & 0x3ff; + addr = word[0] & 0xffff; + if (addr == VIVS_FE_VERTEX_ELEMENT_CONFIG(0) >> 2) + memset(&state->state[0x600 >> 2], 0, sizeof(uint32_t) * 16); + state->state[addr++] = word[1]; + num--; + if (num) { + i = (num + 1) & ~1; + ret = read(fd, data, sizeof(uint32_t) * i); + if (ret <= 0) + return ret; + for (i = 0; i < num; i++) + state->state[addr++] = data[i]; + } + break; + case 2: + memset(state->state, 0xaa, sizeof(state->state)); + break; + case 3: + case 9: + break; + + case 5: + ret = read(fd, data, sizeof(uint32_t) * 2); + if (ret <= 0) + return ret; + state->draw_op[0] = word[0]; + state->draw_op[1] = word[1]; + memcpy(&state->draw_op[2], data, sizeof(uint32_t) * 2); + state->state[VIVS_FE_INDEX_STREAM_CONTROL >> 2] = 0; + return 1; + + case 6: + ret = read(fd, data, sizeof(uint32_t) * 4); + if (ret <= 0) + return ret; + state->draw_op[0] = word[0]; + state->draw_op[1] = word[1]; + memcpy(&state->draw_op[2], data, sizeof(uint32_t) * 4); + return 1; + + default: + fprintf(stderr, "Unknown opcode: %08x\n", word[0]); + fprintf(stderr, "Position: 0x%llx\n", + (unsigned long long) lseek(fd, 0, SEEK_CUR)); + return -1; + } + } while (1); +} + +static int diff_files(const char *file1, const char *file2) +{ + struct state state[2]; + off_t pos[2], new_pos[2]; + int fd[2]; + + fd[0] = open(file1, O_RDONLY); + if (fd[0] == -1) + error(1, errno, "%s", file1); + fd[1] = open(file2, O_RDONLY); + if (fd[1] == -1) + error(1, errno, "%s", file2); + + memset(state, 0, sizeof(state)); + + do { + int i, ret; + + for (i = 0; i < 2; i++) { + pos[i] = lseek(fd[i], 0, SEEK_CUR); + if (pos[i] == (off_t)-1) + error(2, errno, "lseek"); + ret = read_state(fd[i], &state[i]); + if (ret < 0) + error(2, errno, "read"); + if (ret == 0) + return 0; + new_pos[i] = lseek(fd[i], 0, SEEK_CUR); + } + + for (i = 0; i < sizeof(address_states) / sizeof(uint32_t); i++) { + uint32_t idx = address_states[i] >> 2; + + state[0].state[idx] = state[1].state[idx]; + } + + memset(&state[0].state[0x1600 >> 2], 0, 0x44); + memset(&state[1].state[0x1600 >> 2], 0, 0x44); + + if (memcmp(state[0].state, state[1].state, sizeof(state[0].state))) { + printf("State differences:\n" + " %s offset 0x%llx - 0x%llx\n" + " %s offset 0x%llx - 0x%llx\n", + file1, (unsigned long long)pos[0], (unsigned long long)new_pos[0], + file2, (unsigned long long)pos[1], (unsigned long long)new_pos[1]); + for (i = 0; i < sizeof(state[0].state) / sizeof(uint32_t); i++) { + if (state[0].state[i] != state[1].state[i]) { + printf("%05x: %08x -> %08x\n", + i << 2, state[0].state[i], state[1].state[i]); + state[1].state[i] = state[0].state[i]; + } + } + } + if (memcmp(state[0].draw_op, state[1].draw_op, sizeof(state[0].draw_op))) { + printf("Draw op differs:\n" + " %s offset 0x%llx\n" + " %s offset 0x%llx\n", + file1, (unsigned long long)pos[0], + file2, (unsigned long long)pos[1]); + } + } while (1); +} + +int main(int argc, char *argv[]) +{ + if (argc < 3) { + fprintf(stderr, "Usage: %s FILE1 FILE2\n", argv[0]); + return 1; + } + + return diff_files(argv[1], argv[2]); +} |