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Polymost: Factor out the ETC block preparation by moving the ETC function decision from Polymost_SendTexToDriver into Polymost_PickETCFunction.

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git-svn-id: https://svn.eduke32.com/eduke32@5714 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
hendricks266 2016-05-04 00:25:20 +00:00
parent 868306abef
commit b8f22a6d9c
1 changed files with 46 additions and 72 deletions
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118
polymer/eduke32/build/src/polymost.c
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@ -720,6 +720,29 @@ extern uint64_t ProcessRGB_ETC2(uint8_t const *);
}
# endif
typedef uint64_t (*ETCFunction_t)(uint8_t const *);
static ETCFunction_t Polymost_PickETCFunction(int32_t const comprtexfmt)
{
switch (comprtexfmt)
{
case GL_ETC1_RGB8_OES:
return ProcessRGB;
case GL_COMPRESSED_RGB8_ETC2:
return ProcessRGB_ETC2;
# if 0
case GL_COMPRESSED_RGBA8_ETC2_EAC:
case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
# endif
default:
EDUKE32_UNREACHABLE_SECTION(return NULL);
}
}
#else
# define Polymost_glTexImage2D_Error(...) (0)
#endif
@ -753,82 +776,33 @@ static void Polymost_SendTexToDriver(int32_t const doalloc,
{
int32_t const comprtexfmt = **comprtexfmt_master;
switch (comprtexfmt)
{
case GL_ETC1_RGB8_OES:
ETCFunction_t func = Polymost_PickETCFunction(comprtexfmt);
coltype buf[4*4];
uint64_t * out = (uint64_t *)comprpic;
for (coltype const * row = pic, * const pic_end = pic + picLength; row < pic_end; row += fourRows)
for (coltype const * block = row, * const row_end = row + siz.x; block < row_end; block += 4)
{
coltype buf[4*4];
uint64_t * out = (uint64_t *)comprpic;
for (coltype const * row = pic, * const pic_end = pic + picLength; row < pic_end; row += fourRows)
for (coltype const * block = row, * const row_end = row + siz.x; block < row_end; block += 4)
{
buf[0] = block[0];
buf[1] = block[siz.x];
buf[2] = block[siz.x*2];
buf[3] = block[siz.x*3];
buf[4] = block[1];
buf[5] = block[siz.x+1];
buf[6] = block[siz.x*2+1];
buf[7] = block[siz.x*3+1];
buf[8] = block[2];
buf[9] = block[siz.x+2];
buf[10] = block[siz.x*2+2];
buf[11] = block[siz.x*3+2];
buf[12] = block[3];
buf[13] = block[siz.x+3];
buf[14] = block[siz.x*2+3];
buf[15] = block[siz.x*3+3];
buf[0] = block[0];
buf[1] = block[siz.x];
buf[2] = block[siz.x*2];
buf[3] = block[siz.x*3];
buf[4] = block[1];
buf[5] = block[siz.x+1];
buf[6] = block[siz.x*2+1];
buf[7] = block[siz.x*3+1];
buf[8] = block[2];
buf[9] = block[siz.x+2];
buf[10] = block[siz.x*2+2];
buf[11] = block[siz.x*3+2];
buf[12] = block[3];
buf[13] = block[siz.x+3];
buf[14] = block[siz.x*2+3];
buf[15] = block[siz.x*3+3];
*out++ = ProcessRGB((uint8_t const *)buf);
}
break;
*out++ = func((uint8_t const *)buf);
}
case GL_COMPRESSED_RGB8_ETC2:
{
coltype buf[4*4];
uint64_t * out = (uint64_t *)comprpic;
for (coltype const * row = pic, * const pic_end = pic + picLength; row < pic_end; row += fourRows)
for (coltype const * block = row, * const row_end = row + siz.x; block < row_end; block += 4)
{
buf[0] = block[0];
buf[1] = block[siz.x];
buf[2] = block[siz.x*2];
buf[3] = block[siz.x*3];
buf[4] = block[1];
buf[5] = block[siz.x+1];
buf[6] = block[siz.x*2+1];
buf[7] = block[siz.x*3+1];
buf[8] = block[2];
buf[9] = block[siz.x+2];
buf[10] = block[siz.x*2+2];
buf[11] = block[siz.x*3+2];
buf[12] = block[3];
buf[13] = block[siz.x+3];
buf[14] = block[siz.x*2+3];
buf[15] = block[siz.x*3+3];
*out++ = ProcessRGB_ETC2((uint8_t const *)buf);
}
break;
}
# if 0
case GL_COMPRESSED_RGBA8_ETC2_EAC:
{
break;
}
case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
{
break;
}
# endif
default:
EDUKE32_UNREACHABLE_SECTION(break);
}
if (doalloc & 1)
jwzgles_glCompressedTexImage2D(GL_TEXTURE_2D, level, comprtexfmt, siz.x,siz.y, 0, imageSize, comprpic);
else