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-rw-r--r--progs/samples/blendeq.c97
1 files changed, 45 insertions, 52 deletions
diff --git a/progs/samples/blendeq.c b/progs/samples/blendeq.c
index f78afd3038..d5143ecdf5 100644
--- a/progs/samples/blendeq.c
+++ b/progs/samples/blendeq.c
@@ -25,6 +25,27 @@ static int doPrint = 1;
static int deltaY;
GLint windW, windH;
+static const struct {
+ GLenum mode;
+ const char *name;
+} LogicOpModes[] = {
+ { GL_SET, "GL_SET" },
+ { GL_COPY, "GL_COPY" },
+ { GL_NOOP, "GL_NOOP" },
+ { GL_AND, "GL_AND" },
+ { GL_INVERT, "GL_INVERT" },
+ { GL_OR, "GL_OR" },
+ { GL_XOR, "GL_XOR" },
+ { GL_NOR, "GL_NOR" },
+ { GL_NAND, "GL_NAND" },
+ { GL_OR_REVERSE, "GL_OR_REVERSE" },
+ { GL_OR_INVERTED, "GL_OR_INVERTED" },
+ { GL_AND_INVERTED, "GL_AND_INVERTED" },
+ { 0, NULL }
+};
+
+
+
static void DrawString(const char *string)
{
int i;
@@ -47,7 +68,7 @@ static void Reshape(int width, int height)
windH = (GLint)height;
glViewport(0, 0, (GLint)width, (GLint)height);
- deltaY = windH /16;
+ deltaY = windH /20;
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
@@ -105,7 +126,7 @@ static void Draw(void)
{
int stringOffset = 5, stringx = 8;
int x1, x2, xleft, xright;
- int i;
+ int i, k;
(dithering) ? glEnable(GL_DITHER) : glDisable(GL_DITHER);
glDisable(GL_BLEND);
@@ -122,6 +143,7 @@ static void Draw(void)
/* Draw labels */
glColor3f(0.8, 0.8, 0.0);
i = windH - deltaY + stringOffset;
+
glRasterPos2f(stringx, i); i -= deltaY;
DrawString("SOURCE");
glRasterPos2f(stringx, i); i -= deltaY;
@@ -136,21 +158,12 @@ static void Draw(void)
DrawString("reverse_subtract");
glRasterPos2f(stringx, i); i -= deltaY;
DrawString("clear");
- glRasterPos2f(stringx, i); i -= deltaY;
- DrawString("set");
- glRasterPos2f(stringx, i); i -= deltaY;
- DrawString("copy");
- glRasterPos2f(stringx, i); i -= deltaY;
- DrawString("noop");
- glRasterPos2f(stringx, i); i -= deltaY;
- DrawString("and");
- glRasterPos2f(stringx, i); i -= deltaY;
- DrawString("invert");
- glRasterPos2f(stringx, i); i -= deltaY;
- DrawString("or");
- glRasterPos2f(stringx, i); i -= deltaY;
- DrawString("xor");
+ for (k = 0; LogicOpModes[k].name; k++) {
+ glRasterPos2f(stringx, i);
+ i -= deltaY;
+ DrawString(LogicOpModes[k].name);
+ }
i = windH - deltaY;
x1 = windW/4;
@@ -193,43 +206,23 @@ static void Draw(void)
glLogicOp(GL_CLEAR);
glRectf(x1, i, x2, i+deltaY);
- i -= deltaY;
- glLogicOp(GL_SET);
- glRectf(x1, i, x2, i+deltaY);
-
- i -= deltaY;
- glLogicOp(GL_COPY);
- glRectf(x1, i, x2, i+deltaY);
-
- i -= deltaY;
- glLogicOp(GL_NOOP);
- glRectf(x1, i, x2, i+deltaY);
-
- i -= deltaY;
- glLogicOp(GL_AND);
- glRectf(x1, i, x2, i+deltaY);
-
- i -= deltaY;
- glLogicOp(GL_INVERT);
- glRectf(x1, i, x2, i+deltaY);
-
- i -= deltaY;
- glLogicOp(GL_OR);
- glRectf(x1, i, x2, i+deltaY);
-
- i -= deltaY;
- glLogicOp(GL_XOR);
- glRectf(x1, i, x2, i+deltaY);
- glRectf(x1, i+10, x2, i+5);
+ for (k = 0; LogicOpModes[k].name; k++) {
+ i -= deltaY;
+ glLogicOp(LogicOpModes[k].mode);
+ glRectf(x1, i, x2, i+deltaY);
+ if (LogicOpModes[k].mode == GL_XOR) {
+ glRectf(x1, i+10, x2, i+5);
+ }
+ }
- if (doPrint) {
- glDisable(GL_BLEND);
- if (supportlogops & 2)
+ if (doPrint) {
+ glDisable(GL_BLEND);
+ if (supportlogops & 2)
glDisable(GL_COLOR_LOGIC_OP);
- glColor3f(1.0, 1.0, 1.0);
- PrintColorStrings();
- }
- glFlush();
+ glColor3f(1.0, 1.0, 1.0);
+ PrintColorStrings();
+ }
+ glFlush();
if (doubleBuffer) {
glutSwapBuffers();
@@ -271,7 +264,7 @@ int main(int argc, char **argv)
exit(1);
}
- glutInitWindowPosition(0, 0); glutInitWindowSize( 800, 400);
+ glutInitWindowPosition(0, 0); glutInitWindowSize( 800, 520);
type = GLUT_RGB;
type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;