diff options
Diffstat (limited to 'progs')
| -rw-r--r-- | progs/demos/copypix.c | 22 | ||||
| -rw-r--r-- | progs/fp/add-sat.txt | 6 | ||||
| -rw-r--r-- | progs/fp/mov-alias.txt | 6 | ||||
| -rw-r--r-- | progs/fp/mul-alias.txt | 6 | ||||
| -rw-r--r-- | progs/tests/zreaddraw.c | 79 |
5 files changed, 106 insertions, 13 deletions
diff --git a/progs/demos/copypix.c b/progs/demos/copypix.c index 51435acfa0..a13339ea62 100644 --- a/progs/demos/copypix.c +++ b/progs/demos/copypix.c @@ -26,6 +26,7 @@ static int Scissor = 0; static float Xzoom, Yzoom; static GLboolean DrawFront = GL_FALSE; static GLboolean Dither = GL_TRUE; +static GLboolean Invert = GL_FALSE; static void Reset( void ) @@ -59,6 +60,15 @@ static void Display( void ) if (Scissor) glEnable(GL_SCISSOR_TEST); + if (Invert) { + glPixelTransferf(GL_RED_SCALE, -1.0); + glPixelTransferf(GL_GREEN_SCALE, -1.0); + glPixelTransferf(GL_BLUE_SCALE, -1.0); + glPixelTransferf(GL_RED_BIAS, 1.0); + glPixelTransferf(GL_GREEN_BIAS, 1.0); + glPixelTransferf(GL_BLUE_BIAS, 1.0); + } + /* draw copy */ glPixelZoom(Xzoom, Yzoom); glWindowPos2iARB(Xpos, Ypos); @@ -67,6 +77,15 @@ static void Display( void ) glDisable(GL_SCISSOR_TEST); + if (Invert) { + glPixelTransferf(GL_RED_SCALE, 1.0); + glPixelTransferf(GL_GREEN_SCALE, 1.0); + glPixelTransferf(GL_BLUE_SCALE, 1.0); + glPixelTransferf(GL_RED_BIAS, 0.0); + glPixelTransferf(GL_GREEN_BIAS, 0.0); + glPixelTransferf(GL_BLUE_BIAS, 0.0); + } + if (DrawFront) glFinish(); else @@ -105,6 +124,9 @@ static void Key( unsigned char key, int x, int y ) else glDisable(GL_DITHER); break; + case 'i': + Invert = !Invert; + break; case 's': Scissor = !Scissor; break; diff --git a/progs/fp/add-sat.txt b/progs/fp/add-sat.txt new file mode 100644 index 0000000000..2253efb085 --- /dev/null +++ b/progs/fp/add-sat.txt @@ -0,0 +1,6 @@ +!!ARBfp1.0 +TEMP R0; +MOV R0, fragment.color; +ADD_SAT R0, R0, R0; +MUL result.color, {0.5}.x, R0; +END diff --git a/progs/fp/mov-alias.txt b/progs/fp/mov-alias.txt new file mode 100644 index 0000000000..5f04e9c76e --- /dev/null +++ b/progs/fp/mov-alias.txt @@ -0,0 +1,6 @@ +!!ARBfp1.0 +TEMP R0; +MOV R0, fragment.color; +MOV R0, R0.zyxw; +MOV result.color, R0; +END diff --git a/progs/fp/mul-alias.txt b/progs/fp/mul-alias.txt new file mode 100644 index 0000000000..cf7d359e78 --- /dev/null +++ b/progs/fp/mul-alias.txt @@ -0,0 +1,6 @@ +!!ARBfp1.0 +TEMP R0; +MOV R0, fragment.color; +MUL R0, R0.zyxw, fragment.color; +MOV result.color, R0; +END diff --git a/progs/tests/zreaddraw.c b/progs/tests/zreaddraw.c index 8839e10836..7dfed20cfb 100644 --- a/progs/tests/zreaddraw.c +++ b/progs/tests/zreaddraw.c @@ -12,14 +12,17 @@ #include <GL/glut.h> static GLint WinWidth = 500, WinHeight = 500; +static GLboolean Invert = GL_FALSE; +static GLboolean TestPacking = GL_FALSE; +static GLboolean TestList = GL_FALSE; static void Display(void) { - GLfloat depth[100 * 100]; - GLfloat depth2[400 * 400]; - GLfloat min, max; - int i; + GLfloat depth[100 * 100 * 2]; + GLfloat depth2[400 * 400]; /* *2 to test pixelstore stuff */ + GLuint list; + GLenum depthType = GL_FLOAT; glClearColor(0.5, 0.5, 0.5, 1.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); @@ -35,22 +38,61 @@ static void Display(void) glLoadIdentity(); glutSolidSphere(1.0, 20, 10); + if (TestPacking) { + glPixelStorei(GL_PACK_ROW_LENGTH, 120); + glPixelStorei(GL_PACK_SKIP_PIXELS, 5); + } + /* read the depth image */ - glReadPixels(0, 0, 100, 100, GL_DEPTH_COMPONENT, GL_FLOAT, depth); - min = max = depth[0]; - for (i = 1; i < 100 * 100; i++) { - if (depth[i] < min) - min = depth[i]; - if (depth[i] > max) - max = depth[i]; + glReadPixels(0, 0, 100, 100, GL_DEPTH_COMPONENT, depthType, depth); + if (depthType == GL_FLOAT) { + GLfloat min, max; + int i; + min = max = depth[0]; + for (i = 1; i < 100 * 100; i++) { + if (depth[i] < min) + min = depth[i]; + if (depth[i] > max) + max = depth[i]; + } + printf("Depth value range: [%f, %f]\n", min, max); + } + + if (TestPacking) { + glPixelStorei(GL_PACK_ROW_LENGTH, 0); + glPixelStorei(GL_PACK_SKIP_PIXELS, 0); + glPixelStorei(GL_UNPACK_ROW_LENGTH, 120); + glPixelStorei(GL_UNPACK_SKIP_PIXELS, 5); } - printf("Depth value range: [%f, %f]\n", min, max); /* draw depth image with scaling (into z buffer) */ glPixelZoom(4.0, 4.0); glColor4f(1, 0, 0, 0); glWindowPos2i(100, 0); - glDrawPixels(100, 100, GL_DEPTH_COMPONENT, GL_FLOAT, depth); + if (Invert) { + glPixelTransferf(GL_DEPTH_SCALE, -1.0); + glPixelTransferf(GL_DEPTH_BIAS, 1.0); + } + if (TestList) { + list = glGenLists(1); + glNewList(list, GL_COMPILE); + glDrawPixels(100, 100, GL_DEPTH_COMPONENT, depthType, depth); + glEndList(); + glCallList(list); + glDeleteLists(list, 1); + } + else { + glDrawPixels(100, 100, GL_DEPTH_COMPONENT, depthType, depth); + } + if (Invert) { + glPixelTransferf(GL_DEPTH_SCALE, 1.0); + glPixelTransferf(GL_DEPTH_BIAS, 0.0); + } + + if (TestPacking) { + glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); + glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0); + } glDisable(GL_DEPTH_TEST); @@ -77,6 +119,17 @@ static void Key(unsigned char key, int x, int y) (void) x; (void) y; switch (key) { + case 'i': + Invert = !Invert; + break; + case 'p': + TestPacking = !TestPacking; + printf("Test pixel pack/unpack: %d\n", TestPacking); + break; + case 'l': + TestList = !TestList; + printf("Test dlist: %d\n", TestList); + break; case 27: exit(0); break; |