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Diffstat (limited to 'src/mesa/drivers/dri/radeon/radeon_texstate.c')
-rw-r--r--src/mesa/drivers/dri/radeon/radeon_texstate.c113
1 files changed, 76 insertions, 37 deletions
diff --git a/src/mesa/drivers/dri/radeon/radeon_texstate.c b/src/mesa/drivers/dri/radeon/radeon_texstate.c
index e12fd41ad9..03324941ba 100644
--- a/src/mesa/drivers/dri/radeon/radeon_texstate.c
+++ b/src/mesa/drivers/dri/radeon/radeon_texstate.c
@@ -834,7 +834,9 @@ static void import_tex_obj_state( radeonContextPtr rmesa,
static void set_texgen_matrix( radeonContextPtr rmesa,
GLuint unit,
const GLfloat *s_plane,
- const GLfloat *t_plane )
+ const GLfloat *t_plane,
+ const GLfloat *r_plane,
+ const GLfloat *q_plane )
{
rmesa->TexGenMatrix[unit].m[0] = s_plane[0];
rmesa->TexGenMatrix[unit].m[4] = s_plane[1];
@@ -846,78 +848,119 @@ static void set_texgen_matrix( radeonContextPtr rmesa,
rmesa->TexGenMatrix[unit].m[9] = t_plane[2];
rmesa->TexGenMatrix[unit].m[13] = t_plane[3];
+ rmesa->TexGenMatrix[unit].m[2] = r_plane[0];
+ rmesa->TexGenMatrix[unit].m[6] = r_plane[1];
+ rmesa->TexGenMatrix[unit].m[10] = r_plane[2];
+ rmesa->TexGenMatrix[unit].m[14] = r_plane[3];
+
+ rmesa->TexGenMatrix[unit].m[3] = q_plane[0];
+ rmesa->TexGenMatrix[unit].m[7] = q_plane[1];
+ rmesa->TexGenMatrix[unit].m[11] = q_plane[2];
+ rmesa->TexGenMatrix[unit].m[15] = q_plane[3];
+
rmesa->TexGenEnabled |= RADEON_TEXMAT_0_ENABLE << unit;
rmesa->NewGLState |= _NEW_TEXTURE_MATRIX;
}
-/* Ignoring the Q texcoord for now.
- *
- * Returns GL_FALSE if fallback required.
+/* Returns GL_FALSE if fallback required.
*/
static GLboolean radeon_validate_texgen( GLcontext *ctx, GLuint unit )
-{
+{
radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
GLuint inputshift = RADEON_TEXGEN_0_INPUT_SHIFT + unit*4;
GLuint tmp = rmesa->TexGenEnabled;
-
- rmesa->TexGenEnabled &= ~(RADEON_TEXGEN_TEXMAT_0_ENABLE<<unit);
- rmesa->TexGenEnabled &= ~(RADEON_TEXMAT_0_ENABLE<<unit);
- rmesa->TexGenEnabled &= ~(RADEON_TEXGEN_INPUT_MASK<<inputshift);
+ static const GLfloat reflect[16] = {
+ -1, 0, 0, 0,
+ 0, -1, 0, 0,
+ 0, 0, -1, 0,
+ 0, 0, 0, 1 };
+
+ rmesa->TexGenEnabled &= ~(RADEON_TEXGEN_TEXMAT_0_ENABLE << unit);
+ rmesa->TexGenEnabled &= ~(RADEON_TEXMAT_0_ENABLE << unit);
+ rmesa->TexGenEnabled &= ~(RADEON_TEXGEN_INPUT_MASK << inputshift);
rmesa->TexGenNeedNormals[unit] = 0;
- if ((texUnit->TexGenEnabled & (S_BIT|T_BIT)) == 0) {
+ if ((texUnit->TexGenEnabled & (S_BIT|T_BIT|R_BIT|Q_BIT)) == 0) {
/* Disabled, no fallback:
*/
- rmesa->TexGenEnabled |=
- (RADEON_TEXGEN_INPUT_TEXCOORD_0+unit) << inputshift;
+ rmesa->TexGenEnabled |=
+ (RADEON_TEXGEN_INPUT_TEXCOORD_0 + unit) << inputshift;
return GL_TRUE;
}
- else if (texUnit->TexGenEnabled & Q_BIT) {
- /* Very easy to do this, in fact would remove a fallback case
- * elsewhere, but I haven't done it yet... Fallback:
- */
- if (RADEON_DEBUG & DEBUG_FALLBACKS)
- fprintf(stderr, "fallback Q_BIT\n");
- return GL_FALSE;
+ /* the r100 cannot do texgen for some coords and not for others
+ * we do not detect such cases (certainly can't do it here) and just
+ * ASSUME that when S and T are texgen enabled we do not need other
+ * non-texgen enabled coords, no matter if the R and Q bits are texgen
+ * enabled. Still check for mixed mode texgen for all coords.
+ */
+ else if ( (texUnit->TexGenEnabled & S_BIT) &&
+ (texUnit->TexGenEnabled & T_BIT) &&
+ (texUnit->GenModeS == texUnit->GenModeT) ) {
+ if ( ((texUnit->TexGenEnabled & R_BIT) &&
+ (texUnit->GenModeS != texUnit->GenModeR)) ||
+ ((texUnit->TexGenEnabled & Q_BIT) &&
+ (texUnit->GenModeS != texUnit->GenModeQ)) ) {
+ /* Mixed modes, fallback:
+ */
+ if (RADEON_DEBUG & DEBUG_FALLBACKS)
+ fprintf(stderr, "fallback mixed texgen\n");
+ return GL_FALSE;
+ }
+ rmesa->TexGenEnabled |= RADEON_TEXGEN_TEXMAT_0_ENABLE << unit;
}
- else if ((texUnit->TexGenEnabled & (S_BIT|T_BIT)) != (S_BIT|T_BIT) ||
- texUnit->GenModeS != texUnit->GenModeT) {
- /* Mixed modes, fallback:
- */
- if (RADEON_DEBUG & DEBUG_FALLBACKS)
- fprintf(stderr, "fallback mixed texgen\n");
+ else {
+ /* some texgen mode not including both S and T bits */
+ if (RADEON_DEBUG & DEBUG_FALLBACKS)
+ fprintf(stderr, "fallback mixed texgen/nontexgen\n");
return GL_FALSE;
}
- else
- rmesa->TexGenEnabled |= RADEON_TEXGEN_TEXMAT_0_ENABLE << unit;
+
+ if ((texUnit->TexGenEnabled & (R_BIT | Q_BIT)) != 0) {
+ /* need this here for vtxfmt presumably. Argh we need to set
+ this from way too many places, would be much easier if we could leave
+ tcl q coord always enabled as on r200) */
+ RADEON_STATECHANGE( rmesa, tcl );
+ if (unit == 0)
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] |= RADEON_TCL_VTX_Q0;
+ else
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] |= RADEON_TCL_VTX_Q1;
+ }
switch (texUnit->GenModeS) {
case GL_OBJECT_LINEAR:
rmesa->TexGenEnabled |= RADEON_TEXGEN_INPUT_OBJ << inputshift;
- set_texgen_matrix( rmesa, unit,
+ set_texgen_matrix( rmesa, unit,
texUnit->ObjectPlaneS,
- texUnit->ObjectPlaneT);
+ texUnit->ObjectPlaneT,
+ texUnit->ObjectPlaneR,
+ texUnit->ObjectPlaneQ);
break;
case GL_EYE_LINEAR:
rmesa->TexGenEnabled |= RADEON_TEXGEN_INPUT_EYE << inputshift;
- set_texgen_matrix( rmesa, unit,
+ set_texgen_matrix( rmesa, unit,
texUnit->EyePlaneS,
- texUnit->EyePlaneT);
+ texUnit->EyePlaneT,
+ texUnit->EyePlaneR,
+ texUnit->EyePlaneQ);
break;
case GL_REFLECTION_MAP_NV:
rmesa->TexGenNeedNormals[unit] = GL_TRUE;
- rmesa->TexGenEnabled |= RADEON_TEXGEN_INPUT_EYE_REFLECT<<inputshift;
+ rmesa->TexGenEnabled |= RADEON_TEXGEN_INPUT_EYE_REFLECT << inputshift;
+ /* TODO: unknown if this is needed/correct */
+ set_texgen_matrix( rmesa, unit, reflect, reflect + 4,
+ reflect + 8, reflect + 12 );
break;
case GL_NORMAL_MAP_NV:
rmesa->TexGenNeedNormals[unit] = GL_TRUE;
- rmesa->TexGenEnabled |= RADEON_TEXGEN_INPUT_EYE_NORMAL<<inputshift;
+ rmesa->TexGenEnabled |= RADEON_TEXGEN_INPUT_EYE_NORMAL << inputshift;
break;
case GL_SPHERE_MAP:
+ /* the mode which everyone uses :-( */
default:
/* Unsupported mode, fallback:
*/
@@ -1131,11 +1174,7 @@ static GLboolean radeonUpdateTextureUnit( GLcontext *ctx, int unit )
{
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
- TCL_FALLBACK( ctx, RADEON_TCL_FALLBACK_TEXRECT_0 << unit, 0 );
-
if ( texUnit->_ReallyEnabled & (TEXTURE_RECT_BIT) ) {
- TCL_FALLBACK( ctx, RADEON_TCL_FALLBACK_TEXRECT_0 << unit, 1 );
-
return (enable_tex_rect( ctx, unit ) &&
update_tex_common( ctx, unit ));
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-30 18:47:42 +0000