diff options
| -rw-r--r-- | progs/tests/debugger.c | 137 |
1 files changed, 124 insertions, 13 deletions
diff --git a/progs/tests/debugger.c b/progs/tests/debugger.c index fbebf77fd3..4c6955bcfc 100644 --- a/progs/tests/debugger.c +++ b/progs/tests/debugger.c @@ -4,6 +4,7 @@ #include <assert.h> +#include <ctype.h> #include <string.h> #include <stdio.h> #include <stdlib.h> @@ -80,18 +81,33 @@ find_line_column(const GLubyte *string, const GLubyte *pos, #define NV_FRAGMENT_PROGRAM 4 +struct breakpoint { + enum {PIXEL, LINE} type; + int x, y; + int line; + GLboolean enabled; +}; + +#define MAX_BREAKPOINTS 100 +static struct breakpoint Breakpoints[MAX_BREAKPOINTS]; +static int NumBreakpoints = 0; + + + /* * Interactive debugger */ static void Debugger2(GLenum target, GLvoid *data) { - static GLboolean continueFlag = GL_FALSE; + static GLuint skipCount = 0; const GLubyte *ln; GLint pos, line, column; GLint id; int progType; GLint len; GLubyte *program; + GLboolean stop; + int i; /* Sigh, GL_VERTEX_PROGRAM_ARB == GL_VERTEX_PROGRAM_NV so it's a bit * hard to distinguish between them. @@ -103,9 +119,11 @@ static void Debugger2(GLenum target, GLvoid *data) else progType = NV_VERTEX_PROGRAM; - - if (continueFlag) + /* Until we hit zero, continue rendering */ + if (skipCount > 0) { + skipCount--; return; + } /* Get id of the program and current position */ switch (progType) { @@ -146,6 +164,48 @@ static void Debugger2(GLenum target, GLvoid *data) /* Get current line number, column, line string */ ln = find_line_column(program, program + pos, &line, &column); + /* test breakpoints */ + if (NumBreakpoints > 0) + stop = GL_FALSE; + else + stop = GL_TRUE; + for (i = 0; i < NumBreakpoints; i++) { + if (Breakpoints[i].enabled) { + switch (Breakpoints[i].type) { + case PIXEL: + if (progType == ARB_FRAGMENT_PROGRAM) { + + } + else if (progType == NV_FRAGMENT_PROGRAM) { + GLfloat pos[4]; + int px, py; + glGetProgramRegisterfvMESA(GL_FRAGMENT_PROGRAM_NV, + 6, (GLubyte *) "f[WPOS]", pos); + px = (int) pos[0]; + py = (int) pos[1]; + printf("%d, %d\n", px, py); + if (px == Breakpoints[i].x && + py == Breakpoints[i].y) { + printf("Break at pixel (%d, %d)\n", px, py); + stop = GL_TRUE; + } + } + break; + case LINE: + if (line == Breakpoints[i].line) { + /* hit a breakpoint! */ + printf("Break at line %d\n", line); + stop = GL_TRUE; + } + break; + } + } + } + if (!stop) { + free(program); + return; + } + printf("%d: %s\n", line, ln); /* get commands from stdin */ @@ -167,11 +227,15 @@ static void Debugger2(GLenum target, GLvoid *data) switch (cmd[0]) { case 's': + /* skip N instructions */ + i = atoi(cmd + 2); + skipCount = i; + printf("Skipping %d instructions\n", i); + return; case 'n': - /* step / next */ + /* next */ return; case 'c': - continueFlag = GL_TRUE; return; case 'd': /* dump machine state */ @@ -286,18 +350,65 @@ static void Debugger2(GLenum target, GLvoid *data) } break; case 'b': - /* break */ - /* break at line number */ - /* break at screen pixel (x,y) */ - /* break if condition is true */ - printf("Breakpoints not implemented yet.\n"); + if (cmd[1] == ' ' && isdigit(cmd[2])) { + char *comma = strchr(cmd, ','); + if (comma) { + /* break at pixel */ + int x = atoi(cmd + 2); + int y = atoi(comma + 1); + if (NumBreakpoints < MAX_BREAKPOINTS) { + Breakpoints[NumBreakpoints].type = PIXEL; + Breakpoints[NumBreakpoints].x = x; + Breakpoints[NumBreakpoints].y = y; + Breakpoints[NumBreakpoints].enabled = GL_TRUE; + NumBreakpoints++; + printf("Breakpoint %d: break at pixel (%d, %d)\n", + NumBreakpoints, x, y); + } + } + else { + /* break at line */ + int l = atoi(cmd + 2); + if (l && NumBreakpoints < MAX_BREAKPOINTS) { + Breakpoints[NumBreakpoints].type = LINE; + Breakpoints[NumBreakpoints].line = l; + Breakpoints[NumBreakpoints].enabled = GL_TRUE; + NumBreakpoints++; + printf("Breakpoint %d: break at line %d\n", + NumBreakpoints, l); + } + } + } + else { + /* list breakpoints */ + printf("Breakpoints:\n"); + for (i = 0; i < NumBreakpoints; i++) { + switch (Breakpoints[i].type) { + case LINE: + printf(" %d: break at line %d\n", + i + 1, Breakpoints[i].line); + break; + case PIXEL: + printf(" %d: break at pixel (%d, %d)\n", + i + 1, Breakpoints[i].x, Breakpoints[i].y); + break; + } + } + } break; case 'h': /* help */ printf("Debugger commands:\n"); - printf(" s step n next c continue\n"); - printf(" d dump regs h help l list\n"); - printf(" b break p print\n"); + printf(" b list breakpoints\n"); + printf(" b N break at line N\n"); + printf(" b x,y break at pixel x,y\n"); + printf(" c continue execution\n"); + printf(" d display register values\n"); + printf(" h help\n"); + printf(" l list program\n"); + printf(" n next instruction\n"); + printf(" p V print value V\n"); + printf(" s N skip N instructions\n"); break; default: printf("Unknown command: %c\n", cmd[0]); |