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progs/perf: test glGetTexImage() also

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This commit is contained in:
Brian Paul 2009-09-22 12:25:32 -06:00
parent bade906ed1
commit da0e4e557b
1 changed files with 36 additions and 12 deletions
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48
progs/perf/teximage.c
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@ -20,7 +20,7 @@
*/
/**
* Measure glTexSubImage2D rate
* Measure glTex[Sub]Image2D() and glGetTexImage() rate
*
* Brian Paul
* 16 Sep 2009
@ -44,14 +44,17 @@ static const GLboolean TexSubImage4 = GL_TRUE;
enum {
MODE_CREATE_TEXIMAGE,
MODE_TEXIMAGE,
MODE_TEXSUBIMAGE
MODE_TEXSUBIMAGE,
MODE_GETTEXIMAGE,
MODE_COUNT
};
static const char *mode_name[] =
static const char *mode_name[MODE_COUNT] =
{
"Create_TexImage",
"TexImage",
"TexSubImage"
"TexSubImage",
"GetTexImage"
};
@ -170,10 +173,8 @@ UploadTexSubImage2D(unsigned count)
TexSrcFormat, TexSrcType, TexImage);
/* reset the unpacking state */
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
}
else {
/* replace whole texture image at once */
@ -188,6 +189,20 @@ UploadTexSubImage2D(unsigned count)
}
static void
GetTexImage2D(unsigned count)
{
unsigned i;
GLubyte *buf = (GLubyte *) malloc(TexSize * TexSize * 4);
for (i = 0; i < count; i++) {
glGetTexImage(GL_TEXTURE_2D, 0,
TexSrcFormat, TexSrcType, buf);
}
glFinish();
free(buf);
}
/* XXX any other formats to measure? */
static const struct {
GLenum format, type;
@ -196,14 +211,16 @@ static const struct {
GLuint texel_size;
GLboolean full_test;
} SrcFormats[] = {
{ GL_RGBA, GL_UNSIGNED_BYTE, GL_RGBA, "RGBA/ubyte", 4, GL_TRUE },
{ GL_RGB, GL_UNSIGNED_BYTE, GL_RGB, "RGB/ubyte", 3, GL_FALSE },
{ GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_RGB, "RGB/565", 2, GL_FALSE },
{ GL_BGRA, GL_UNSIGNED_BYTE, GL_RGBA, "BGRA/ubyte", 4, GL_FALSE },
{ GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_LUMINANCE, "L/ubyte", 1, GL_FALSE },
{ GL_RGBA, GL_UNSIGNED_BYTE, GL_RGBA, "RGBA/ubyte", 4, GL_TRUE },
{ GL_RGB, GL_UNSIGNED_BYTE, GL_RGB, "RGB/ubyte", 3, GL_FALSE },
{ GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_RGB, "RGB/565", 2, GL_FALSE },
{ GL_BGRA, GL_UNSIGNED_BYTE, GL_RGBA, "BGRA/ubyte", 4, GL_FALSE },
{ GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_LUMINANCE, "L/ubyte", 1, GL_FALSE },
{ 0, 0, 0, NULL, 0, 0 }
};
/** Called from test harness/main */
void
PerfNextRound(void)
{
@ -227,7 +244,7 @@ PerfDraw(void)
TexSrcType = SrcFormats[fmt].type;
/* loop over glTexImage, glTexSubImage */
for (mode = 0; mode < 3; mode++) {
for (mode = 0; mode < MODE_COUNT; mode++) {
GLuint minsz, maxsz;
if (SrcFormats[fmt].full_test) {
@ -269,6 +286,13 @@ PerfDraw(void)
rate = PerfMeasureRate(UploadTexSubImage2D);
break;
case MODE_GETTEXIMAGE:
glTexImage2D(GL_TEXTURE_2D, 0, TexIntFormat,
TexSize, TexSize, 0,
TexSrcFormat, TexSrcType, TexImage);
rate = PerfMeasureRate(GetTexImage2D);
break;
default:
exit(1);
}