3 files changed, 32 insertions, 3 deletions

diff --git a/src/mesa/drivers/dri/r300/r300_fragprog_common.c b/src/mesa/drivers/dri/r300/r300_fragprog_common.c
index 7f8a0174595..39618b78dc6 100644
--- a/src/mesa/drivers/dri/r300/r300_fragprog_common.c
+++ b/src/mesa/drivers/dri/r300/r300_fragprog_common.c
@@ -100,8 +100,8 @@ static void insert_WPOS_trailer(struct r300_fragment_program_compiler *compiler,
 {
 	int i;
 
+	fp->wpos_attr = FRAG_ATTRIB_MAX;
 	if (!(compiler->Base.Program.InputsRead & FRAG_BIT_WPOS)) {
-		fp->wpos_attr = FRAG_ATTRIB_MAX;
 		return;
 	}
 
@@ -113,6 +113,13 @@ static void insert_WPOS_trailer(struct r300_fragment_program_compiler *compiler,
 		}
 	}
 
+	/* No free texcoord found, fall-back to software rendering */
+	if (fp->wpos_attr == FRAG_ATTRIB_MAX)
+	{
+		compiler->Base.Error = 1;
+		return;
+	}
+
 	rc_transform_fragment_wpos(&compiler->Base, FRAG_ATTRIB_WPOS, fp->wpos_attr);
 }
 
@@ -128,8 +135,8 @@ static void rewriteFog(struct r300_fragment_program_compiler *compiler, struct r
 	struct rc_src_register src;
 	int i;
 
+	fp->fog_attr = FRAG_ATTRIB_MAX;
 	if (!(compiler->Base.Program.InputsRead & FRAG_BIT_FOGC)) {
-		fp->fog_attr = FRAG_ATTRIB_MAX;
 		return;
 	}
 
@@ -141,6 +148,13 @@ static void rewriteFog(struct r300_fragment_program_compiler *compiler, struct r
 		}
 	}
 
+	/* No free texcoord found, fall-back to software rendering */
+	if (fp->fog_attr == FRAG_ATTRIB_MAX)
+	{
+		compiler->Base.Error = 1;
+		return;
+	}
+
 	memset(&src, 0, sizeof(src));
 	src.File = RC_FILE_INPUT;
 	src.Index = fp->fog_attr;
diff --git a/src/mesa/drivers/dri/r300/r300_render.c b/src/mesa/drivers/dri/r300/r300_render.c
index b5ddfdc9f82..3cd38753b8a 100644
--- a/src/mesa/drivers/dri/r300/r300_render.c
+++ b/src/mesa/drivers/dri/r300/r300_render.c
@@ -475,7 +475,7 @@ void r300SwitchFallback(GLcontext *ctx, uint32_t bit, GLboolean mode)
 
 		/* update only if we have disabled all tcl fallbacks */
 		if (rmesa->options.hw_tcl_enabled) {
-			if ((old_fallback & R300_RASTER_FALLBACK_MASK) == bit) {
+			if ((old_fallback & R300_TCL_FALLBACK_MASK) == bit) {
 				R300_STATECHANGE(rmesa, vap_cntl_status);
 				rmesa->hw.vap_cntl_status.cmd[1] &= ~R300_VAP_TCL_BYPASS;
 			}
diff --git a/src/mesa/drivers/dri/r300/r300_vertprog.c b/src/mesa/drivers/dri/r300/r300_vertprog.c
index 8ad75fb5c06..fb8d6bceda8 100644
--- a/src/mesa/drivers/dri/r300/r300_vertprog.c
+++ b/src/mesa/drivers/dri/r300/r300_vertprog.c
@@ -43,6 +43,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "compiler/radeon_compiler.h"
 #include "radeon_mesa_to_rc.h"
 #include "r300_context.h"
+#include "r300_fragprog_common.h"
 #include "r300_state.h"
 
 /**
@@ -298,6 +299,20 @@ struct r300_vertex_program * r300SelectAndTranslateVertexShader(GLcontext *ctx)
 	struct r300_vertex_program *vp;
 
 	vpc = (struct r300_vertex_program_cont *)ctx->VertexProgram._Current;
+
+	if (!r300->selected_fp) {
+		/* This can happen when GetProgramiv is called to check
+		 * whether the program runs natively.
+		 *
+		 * To be honest, this is not a very good solution,
+		 * but solving the problem of reporting good values
+		 * for those queries is tough anyway considering that
+		 * we recompile vertex programs based on the precise
+		 * fragment program that is in use.
+		 */
+		r300SelectAndTranslateFragmentShader(ctx);
+	}
+
 	wanted_key.FpReads = r300->selected_fp->InputsRead;
 	wanted_key.FogAttr = r300->selected_fp->fog_attr;
 	wanted_key.WPosAttr = r300->selected_fp->wpos_attr;