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-rw-r--r--progs/tests/debugger.c137
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]);