diff options
| -rw-r--r-- | progs/tests/Makefile | 8 | ||||
| -rw-r--r-- | progs/tests/fillrate.c | 203 |
2 files changed, 211 insertions, 0 deletions
diff --git a/progs/tests/Makefile b/progs/tests/Makefile index ea34a70855..27e2eafdfc 100644 --- a/progs/tests/Makefile +++ b/progs/tests/Makefile @@ -40,6 +40,7 @@ SOURCES = \ fbotest1.c \ fbotest2.c \ fbotexture.c \ + fillrate.c \ fog.c \ fogcoord.c \ fptest1.c \ @@ -166,6 +167,13 @@ mipmap_view.o: mipmap_view.c readtex.h $(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@ +fillrate: fillrate.o readtex.o + $(CC) $(CFLAGS) fillrate.o readtex.o $(LIBS) -o $@ + +fillrate.o: fillrate.c readtex.h + $(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@ + + readtex.o: readtex.c $(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@ diff --git a/progs/tests/fillrate.c b/progs/tests/fillrate.c new file mode 100644 index 0000000000..dd25de2360 --- /dev/null +++ b/progs/tests/fillrate.c @@ -0,0 +1,203 @@ +/** + * Measure fill rates for basic shading/texturing modes. + * + * Brian Paul + * 1 April 2008 + */ + + +#define GL_GLEXT_PROTOTYPES +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#include <GL/glut.h> +#include "readtex.h" + +#define TEXTURE_1_FILE "../images/tile.rgb" +#define TEXTURE_2_FILE "../images/reflect.rgb" + +static int Win; +static int Width = 1010, Height = 1010; +static GLuint Textures[2]; + + +/** + * Draw quad 10 pixels shorter, narrower than window size. + */ +static void +DrawQuad(void) +{ + glBegin(GL_POLYGON); + + glColor3f(1.0, 0.5, 0.5); + glMultiTexCoord2f(GL_TEXTURE0, 0, 0); + glMultiTexCoord2f(GL_TEXTURE1, 0, 0); + glVertex2f(5, 5); + + glColor3f(0.5, 1.0, 0.5); + glMultiTexCoord2f(GL_TEXTURE0, 1, 0); + glMultiTexCoord2f(GL_TEXTURE1, 1, 0); + glVertex2f(Width - 5, 5); + + glColor3f(0.5, 0.5, 1.0); + glMultiTexCoord2f(GL_TEXTURE0, 1, 1); + glMultiTexCoord2f(GL_TEXTURE1, 1, 1); + glVertex2f(Width - 5, Height - 5); + + glColor3f(1.0, 0.5, 1.0); + glMultiTexCoord2f(GL_TEXTURE0, 0, 1); + glMultiTexCoord2f(GL_TEXTURE1, 0, 1); + glVertex2f(5, Height - 5); + + glEnd(); +} + + +/** + * Compute rate for drawing large quad with given shading/texture state. + */ +static void +RunTest(GLenum shading, GLuint numTextures, GLenum texFilter) +{ + const GLdouble minPeriod = 2.0; + GLdouble t0, t1; + GLdouble texels, rate; + GLint i, iters; + + glActiveTexture(GL_TEXTURE0); + if (numTextures > 0) { + glBindTexture(GL_TEXTURE_2D, Textures[0]); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, texFilter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, texFilter); + glEnable(GL_TEXTURE_2D); + } + else { + glDisable(GL_TEXTURE_2D); + } + + glActiveTexture(GL_TEXTURE1); + if (numTextures > 1) { + glBindTexture(GL_TEXTURE_2D, Textures[1]); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, texFilter); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, texFilter); + glEnable(GL_TEXTURE_2D); + } + else { + glDisable(GL_TEXTURE_2D); + } + + glShadeModel(shading); + + + glFinish(); + + iters = 1; + do { + iters *= 4; + t0 = glutGet(GLUT_ELAPSED_TIME) * 0.001; + for (i = 0; i < iters; i++) { + DrawQuad(); + } + glFinish(); + t1 = glutGet(GLUT_ELAPSED_TIME) * 0.001; + } while (t1 - t0 < minPeriod); + + glutSwapBuffers(); + + texels = iters * (Width - 10) * (Height - 10); + rate = texels / (t1 - t0); + rate /= 1000000.0; /* megatexels/second */ + + printf("%s ", shading == GL_FLAT ? "GL_FLAT" : "GL_SMOOTH"); + printf("Textures=%u ", numTextures); + printf("Filter=%s: ", texFilter == GL_LINEAR ? "GL_LINEAR" : "GL_NEAREST"); + printf("%g MPixels/sec\n", rate); +} + + +static void +Draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + + RunTest(GL_FLAT, 0, GL_NEAREST); + RunTest(GL_SMOOTH, 0, GL_NEAREST); + RunTest(GL_SMOOTH, 1, GL_NEAREST); + RunTest(GL_SMOOTH, 1, GL_LINEAR); + RunTest(GL_SMOOTH, 2, GL_NEAREST); + RunTest(GL_SMOOTH, 2, GL_LINEAR); + + glutSwapBuffers(); +} + + +static void +Reshape(int width, int height) +{ + glViewport(0, 0, width, height); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(0, width, 0, height, -1, 1); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + Width = width; + Height = height; +} + + +static void +Key(unsigned char key, int x, int y) +{ + (void) x; + (void) y; + switch (key) { + case 27: + glutDestroyWindow(Win); + exit(0); + break; + } + glutPostRedisplay(); +} + + +static void +Init(void) +{ + printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + + glGenTextures(2, Textures); + + glBindTexture(GL_TEXTURE_2D, Textures[0]); + glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); + + if (!LoadRGBMipmaps(TEXTURE_1_FILE, GL_RGB)) { + printf("Error: couldn't load texture image\n"); + exit(1); + } + + glBindTexture(GL_TEXTURE_2D, Textures[1]); + glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); + + if (!LoadRGBMipmaps(TEXTURE_2_FILE, GL_RGB)) { + printf("Error: couldn't load texture image\n"); + exit(1); + } + +} + + +int +main(int argc, char *argv[]) +{ + glutInit(&argc, argv); + glutInitWindowPosition(0, 0); + glutInitWindowSize(Width, Height); + glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE); + Win = glutCreateWindow(argv[0]); + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Draw); + Init(); + glutMainLoop(); + return 0; +} |