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Diffstat (limited to 'src/mesa/main/eval.c')
-rw-r--r--src/mesa/main/eval.c95
1 files changed, 92 insertions, 3 deletions
diff --git a/src/mesa/main/eval.c b/src/mesa/main/eval.c
index 9ab55072f00..e651715f788 100644
--- a/src/mesa/main/eval.c
+++ b/src/mesa/main/eval.c
@@ -545,7 +545,7 @@ _mesa_Map2d( GLenum target,
static void GLAPIENTRY
-_mesa_GetMapdv( GLenum target, GLenum query, GLdouble *v )
+_mesa_GetnMapdvARB( GLenum target, GLenum query, GLsizei bufSize, GLdouble *v )
{
GET_CURRENT_CONTEXT(ctx);
struct gl_1d_map *map1d;
@@ -553,6 +553,7 @@ _mesa_GetMapdv( GLenum target, GLenum query, GLdouble *v )
GLint i, n;
GLfloat *data;
GLuint comps;
+ GLsizei numBytes;
ASSERT_OUTSIDE_BEGIN_END(ctx);
@@ -577,6 +578,9 @@ _mesa_GetMapdv( GLenum target, GLenum query, GLdouble *v )
n = map2d->Uorder * map2d->Vorder * comps;
}
if (data) {
+ numBytes = n * sizeof *v;
+ if (bufSize < numBytes)
+ goto overflow;
for (i=0;i<n;i++) {
v[i] = data[i];
}
@@ -584,19 +588,31 @@ _mesa_GetMapdv( GLenum target, GLenum query, GLdouble *v )
break;
case GL_ORDER:
if (map1d) {
+ numBytes = 1 * sizeof *v;
+ if (bufSize < numBytes)
+ goto overflow;
v[0] = (GLdouble) map1d->Order;
}
else {
+ numBytes = 2 * sizeof *v;
+ if (bufSize < numBytes)
+ goto overflow;
v[0] = (GLdouble) map2d->Uorder;
v[1] = (GLdouble) map2d->Vorder;
}
break;
case GL_DOMAIN:
if (map1d) {
+ numBytes = 2 * sizeof *v;
+ if (bufSize < numBytes)
+ goto overflow;
v[0] = (GLdouble) map1d->u1;
v[1] = (GLdouble) map1d->u2;
}
else {
+ numBytes = 4 * sizeof *v;
+ if (bufSize < numBytes)
+ goto overflow;
v[0] = (GLdouble) map2d->u1;
v[1] = (GLdouble) map2d->u2;
v[2] = (GLdouble) map2d->v1;
@@ -606,11 +622,22 @@ _mesa_GetMapdv( GLenum target, GLenum query, GLdouble *v )
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glGetMapdv(query)" );
}
+ return;
+
+overflow:
+ _mesa_error( ctx, GL_INVALID_OPERATION,
+ "glGetnMapdvARB(out of bounds: bufSize is %d,"
+ " but %d bytes are required)", bufSize, numBytes );
}
+static void GLAPIENTRY
+_mesa_GetMapdv( GLenum target, GLenum query, GLdouble *v )
+{
+ _mesa_GetnMapdvARB(target, query, INT_MAX, v);
+}
static void GLAPIENTRY
-_mesa_GetMapfv( GLenum target, GLenum query, GLfloat *v )
+_mesa_GetnMapfvARB( GLenum target, GLenum query, GLsizei bufSize, GLfloat *v )
{
GET_CURRENT_CONTEXT(ctx);
struct gl_1d_map *map1d;
@@ -618,6 +645,7 @@ _mesa_GetMapfv( GLenum target, GLenum query, GLfloat *v )
GLint i, n;
GLfloat *data;
GLuint comps;
+ GLsizei numBytes;
ASSERT_OUTSIDE_BEGIN_END(ctx);
@@ -642,6 +670,9 @@ _mesa_GetMapfv( GLenum target, GLenum query, GLfloat *v )
n = map2d->Uorder * map2d->Vorder * comps;
}
if (data) {
+ numBytes = n * sizeof *v;
+ if (bufSize < numBytes)
+ goto overflow;
for (i=0;i<n;i++) {
v[i] = data[i];
}
@@ -649,19 +680,31 @@ _mesa_GetMapfv( GLenum target, GLenum query, GLfloat *v )
break;
case GL_ORDER:
if (map1d) {
+ numBytes = 1 * sizeof *v;
+ if (bufSize < numBytes)
+ goto overflow;
v[0] = (GLfloat) map1d->Order;
}
else {
+ numBytes = 2 * sizeof *v;
+ if (bufSize < numBytes)
+ goto overflow;
v[0] = (GLfloat) map2d->Uorder;
v[1] = (GLfloat) map2d->Vorder;
}
break;
case GL_DOMAIN:
if (map1d) {
+ numBytes = 2 * sizeof *v;
+ if (bufSize < numBytes)
+ goto overflow;
v[0] = map1d->u1;
v[1] = map1d->u2;
}
else {
+ numBytes = 4 * sizeof *v;
+ if (bufSize < numBytes)
+ goto overflow;
v[0] = map2d->u1;
v[1] = map2d->u2;
v[2] = map2d->v1;
@@ -671,11 +714,24 @@ _mesa_GetMapfv( GLenum target, GLenum query, GLfloat *v )
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glGetMapfv(query)" );
}
+ return;
+
+overflow:
+ _mesa_error( ctx, GL_INVALID_OPERATION,
+ "glGetnMapfvARB(out of bounds: bufSize is %d,"
+ " but %d bytes are required)", bufSize, numBytes );
}
static void GLAPIENTRY
-_mesa_GetMapiv( GLenum target, GLenum query, GLint *v )
+_mesa_GetMapfv( GLenum target, GLenum query, GLfloat *v )
+{
+ _mesa_GetnMapfvARB(target, query, INT_MAX, v);
+}
+
+
+static void GLAPIENTRY
+_mesa_GetnMapivARB( GLenum target, GLenum query, GLsizei bufSize, GLint *v )
{
GET_CURRENT_CONTEXT(ctx);
struct gl_1d_map *map1d;
@@ -683,6 +739,7 @@ _mesa_GetMapiv( GLenum target, GLenum query, GLint *v )
GLuint i, n;
GLfloat *data;
GLuint comps;
+ GLsizei numBytes;
ASSERT_OUTSIDE_BEGIN_END(ctx);
@@ -707,6 +764,9 @@ _mesa_GetMapiv( GLenum target, GLenum query, GLint *v )
n = map2d->Uorder * map2d->Vorder * comps;
}
if (data) {
+ numBytes = n * sizeof *v;
+ if (bufSize < numBytes)
+ goto overflow;
for (i=0;i<n;i++) {
v[i] = IROUND(data[i]);
}
@@ -714,19 +774,31 @@ _mesa_GetMapiv( GLenum target, GLenum query, GLint *v )
break;
case GL_ORDER:
if (map1d) {
+ numBytes = 1 * sizeof *v;
+ if (bufSize < numBytes)
+ goto overflow;
v[0] = map1d->Order;
}
else {
+ numBytes = 2 * sizeof *v;
+ if (bufSize < numBytes)
+ goto overflow;
v[0] = map2d->Uorder;
v[1] = map2d->Vorder;
}
break;
case GL_DOMAIN:
if (map1d) {
+ numBytes = 2 * sizeof *v;
+ if (bufSize < numBytes)
+ goto overflow;
v[0] = IROUND(map1d->u1);
v[1] = IROUND(map1d->u2);
}
else {
+ numBytes = 4 * sizeof *v;
+ if (bufSize < numBytes)
+ goto overflow;
v[0] = IROUND(map2d->u1);
v[1] = IROUND(map2d->u2);
v[2] = IROUND(map2d->v1);
@@ -736,9 +808,21 @@ _mesa_GetMapiv( GLenum target, GLenum query, GLint *v )
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glGetMapiv(query)" );
}
+ return;
+
+overflow:
+ _mesa_error( ctx, GL_INVALID_OPERATION,
+ "glGetnMapivARB(out of bounds: bufSize is %d,"
+ " but %d bytes are required)", bufSize, numBytes );
}
+static void GLAPIENTRY
+_mesa_GetMapiv( GLenum target, GLenum query, GLint *v )
+{
+ _mesa_GetnMapivARB(target, query, INT_MAX, v);
+}
+
static void GLAPIENTRY
_mesa_MapGrid1f( GLint un, GLfloat u1, GLfloat u2 )
@@ -832,6 +916,11 @@ _mesa_init_eval_dispatch(struct _glapi_table *disp)
SET_MapGrid1f(disp, _mesa_MapGrid1f);
SET_MapGrid2d(disp, _mesa_MapGrid2d);
SET_MapGrid2f(disp, _mesa_MapGrid2f);
+
+ /* GL_ARB_robustness */
+ SET_GetnMapdvARB(disp, _mesa_GetnMapdvARB);
+ SET_GetnMapfvARB(disp, _mesa_GetnMapfvARB);
+ SET_GetnMapivARB(disp, _mesa_GetnMapivARB);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 10:38:01 +0000