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authorVladimir Dergachev <volodya@freedesktop.org>2005-01-06 03:56:18 +0000
committerVladimir Dergachev <volodya@freedesktop.org>2005-01-06 03:56:18 +0000
commitdbc125eedeb79a218031c51f2eacbe0e4c58278a (patch)
treee85a237b3b4bb7939af15101e050f544fbb88678 /src/mesa
parent7b51aa54be958b3bf5710df7eedf1b7a2aeddd84 (diff)
Switch to a more complicated scheme of choosing texture formats, as it looks
like the old one was prone to collisions (different value of format field was required for same values of t->format going in). Now use a hash for these purposes - this got kfiresaver.kss and lesson06 workingfrom the same code.
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/drivers/dri/r300/r300_state.c79
1 files changed, 71 insertions, 8 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c
index c0257c8797..63ec0d54a6 100644
--- a/src/mesa/drivers/dri/r300/r300_state.c
+++ b/src/mesa/drivers/dri/r300/r300_state.c
@@ -763,12 +763,65 @@ static r300TexObj default_tex_obj={
/* there is probably a system to these value, but, for now,
we just try by hand */
-static GLuint translate_texture_format(GLuint format)
+
+static int inline translate_src(int src)
+{
+ switch (src) {
+ case GL_TEXTURE:
+ return 1;
+ break;
+ case GL_CONSTANT:
+ return 2;
+ break;
+ case GL_PRIMARY_COLOR:
+ return 3;
+ break;
+ case GL_PREVIOUS:
+ return 4;
+ break;
+ case GL_ZERO:
+ return 5;
+ break;
+ case GL_ONE:
+ return 6;
+ break;
+ default:
+ return 0;
+ }
+}
+
+/* I think 357 and 457 are prime numbers.. wiggle them if you get coincidences */
+#define FORMAT_HASH(opRGB, srcRGB, modeRGB, opA, srcA, modeA, format) ( \
+ (\
+ ((opRGB)<<30) | ((opA)<<28) | \
+ ((srcRGB)<< 25) | ((srcA)<<22) | \
+ ((modeRGB)) \
+ ) \
+ ^ ((modeA)*357) \
+ ^ (((format)) *457) \
+ )
+
+static GLuint translate_texture_format(GLcontext *ctx, GLint tex_unit, GLuint format)
{
- switch(format){
- case 0x88047:
- case 0x55047:
+ const struct gl_texture_unit *texUnit= &ctx->Texture.Unit[tex_unit];
+ int i=0; /* number of alpha args .. */
+ switch(FORMAT_HASH(
+ texUnit->_CurrentCombine->OperandRGB[i] -GL_SRC_COLOR,
+ translate_src(texUnit->_CurrentCombine->SourceRGB[i]),
+ texUnit->_CurrentCombine->ModeRGB,
+ texUnit->_CurrentCombine->OperandA[i] -GL_SRC_ALPHA,
+ translate_src(texUnit->_CurrentCombine->SourceA[i]),
+ texUnit->_CurrentCombine->ModeA,
+ format
+ )){
+ case FORMAT_HASH(0, 1, 0x2100, 0, 1, 0x2100, 0x00088047):
+ return 0x1a0c;
+ case FORMAT_HASH(0, 1, 0x2100, 0, 4, 0x1e01, 0x00088047):
return 0x53a0c;
+ case FORMAT_HASH(0, 1, 0x2100, 0, 1, 0x2100, 0x00077047):
+ return 0x4ba0c;
+ case FORMAT_HASH(0, 1, 0x2100, 0, 1, 0x2100, 0x00055047):
+ return 0x53a0c;
default:
{
static int warn_once=1;
@@ -789,7 +842,8 @@ void r300_setup_textures(GLcontext *ctx)
struct r300_tex_obj *t;
r300ContextPtr r300 = R300_CONTEXT(ctx);
int max_texture_unit=-1; /* -1 translates into no setup costs for fields */
-
+ struct gl_texture_unit *texUnit;
+
R300_STATECHANGE(r300, txe);
R300_STATECHANGE(r300, tex.filter);
R300_STATECHANGE(r300, tex.unknown1);
@@ -838,7 +892,7 @@ void r300_setup_textures(GLcontext *ctx)
/* We don't know how to set this yet */
//value from r300_lib.c for RGB24
//r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]=0x88a0c;
- r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]=translate_texture_format(t->format);
+ r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]=translate_texture_format(ctx, i, t->format);
/* Use the code below to quickly find matching texture
formats. Requires an app that displays the same texture
repeatedly */
@@ -850,13 +904,22 @@ void r300_setup_textures(GLcontext *ctx)
if(k>200){
k=0;
fmt++;
- fprintf(stderr, "Want to set format %08x\n", t->format);
+ texUnit = &ctx->Texture.Unit[i];
+ fprintf(stderr, "Want to set FORMAT_HASH(%d, %d, 0x%04x, %d, %d, 0x%04x, 0x%08x)\n",
+ texUnit->_CurrentCombine->OperandRGB[0] -GL_SRC_COLOR,
+ translate_src(texUnit->_CurrentCombine->SourceRGB[0]),
+ texUnit->_CurrentCombine->ModeRGB,
+ texUnit->_CurrentCombine->OperandA[0] -GL_SRC_ALPHA,
+ translate_src(texUnit->_CurrentCombine->SourceA[0]),
+ texUnit->_CurrentCombine->ModeA,
+ t->format
+ );
if(fmt>0xff){
//exit(-1);
fmt=0;
}
//sleep(1);
- fprintf(stderr, "Instead trying format %08x\n",
+ fprintf(stderr, "Now trying format %08x\n",
0x00a0c | (fmt<<12));
}
r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]=0x00a0c | (fmt<<12);