Merge branch 'master' into r300g-glsl

Conflicts:
	src/gallium/drivers/r300/r300_tgsi_to_rc.c

Signed-off-by: Nicolai Hähnle <nhaehnle@gmail.com>

3 files changed, 58 insertions, 5 deletions

diff --git a/src/mesa/drivers/dri/r300/compiler/SConscript b/src/mesa/drivers/dri/r300/compiler/SConscript
new file mode 100755
index 0000000000..48fd65fb71
--- /dev/null
+++ b/src/mesa/drivers/dri/r300/compiler/SConscript
@@ -0,0 +1,30 @@
+Import('*')
+
+env = env.Clone()
+env.Append(CPPPATH = '#/include')
+env.Append(CPPPATH = '#/src/mesa')
+
+# temporary fix
+env['CFLAGS'] = str(env['CFLAGS']).replace('-Werror=declaration-after-statement', '')
+
+r300compiler = env.ConvenienceLibrary(
+    target = 'r300compiler',
+    source = [
+        'radeon_code.c',
+        'radeon_compiler.c',
+        'radeon_nqssadce.c',
+        'radeon_program.c',
+        'radeon_program_alu.c',
+        'radeon_program_pair.c',
+        'r3xx_fragprog.c',
+        'r300_fragprog.c',
+        'r300_fragprog_swizzle.c',
+        'r300_fragprog_emit.c',
+        'r500_fragprog.c',
+        'r500_fragprog_emit.c',
+        'r3xx_vertprog.c',
+        'r3xx_vertprog_dump.c',
+        'memory_pool.c',
+    ])
+
+Return('r300compiler')
diff --git a/src/mesa/drivers/dri/r300/r300_context.c b/src/mesa/drivers/dri/r300/r300_context.c
index 6fcf209af6..2c2b16aa98 100644
--- a/src/mesa/drivers/dri/r300/r300_context.c
+++ b/src/mesa/drivers/dri/r300/r300_context.c
@@ -376,11 +376,21 @@ static void r300InitConstValues(GLcontext *ctx, radeonScreenPtr screen)
 	if (screen->chip_family >= CHIP_FAMILY_RV515) {
 		ctx->Const.FragmentProgram.MaxNativeTemps = R500_PFS_NUM_TEMP_REGS;
 		ctx->Const.FragmentProgram.MaxNativeAttribs = 11;	/* copy i915... */
-		ctx->Const.FragmentProgram.MaxNativeParameters = R500_PFS_NUM_CONST_REGS;
-		ctx->Const.FragmentProgram.MaxNativeAluInstructions = R500_PFS_MAX_INST;
-		ctx->Const.FragmentProgram.MaxNativeTexInstructions = R500_PFS_MAX_INST;
-		ctx->Const.FragmentProgram.MaxNativeInstructions = R500_PFS_MAX_INST;
-		ctx->Const.FragmentProgram.MaxNativeTexIndirections = R500_PFS_MAX_INST;
+
+		/* The hardware limits are higher than this,
+		 * but the non-KMS DRM interface artificially limits us
+		 * to this many instructions.
+		 *
+		 * We could of course work around it in the KMS path,
+		 * but it would be a mess, so it seems wiser
+		 * to leave it as is. Going forward, the Gallium driver
+		 * will not be subject to these limitations.
+		 */
+		ctx->Const.FragmentProgram.MaxNativeParameters = 255;
+		ctx->Const.FragmentProgram.MaxNativeAluInstructions = 255;
+		ctx->Const.FragmentProgram.MaxNativeTexInstructions = 255;
+		ctx->Const.FragmentProgram.MaxNativeInstructions = 255;
+		ctx->Const.FragmentProgram.MaxNativeTexIndirections = 255;
 		ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;
 	} else {
 		ctx->Const.FragmentProgram.MaxNativeTemps = R300_PFS_NUM_TEMP_REGS;
diff --git a/src/mesa/drivers/dri/r300/r300_fragprog_common.c b/src/mesa/drivers/dri/r300/r300_fragprog_common.c
index 39618b78dc..267ee81a7a 100644
--- a/src/mesa/drivers/dri/r300/r300_fragprog_common.c
+++ b/src/mesa/drivers/dri/r300/r300_fragprog_common.c
@@ -240,6 +240,19 @@ static void translate_fragment_program(GLcontext *ctx, struct r300_fragment_prog
 	rewriteFog(&compiler, fp);
 
 	r3xx_compile_fragment_program(&compiler);
+
+	if (compiler.is_r500) {
+		/* We need to support the non-KMS DRM interface, which
+		 * artificially limits the number of instructions and
+		 * constants which are available to us.
+		 *
+		 * See also the comment in r300_context.c where we
+		 * set the MAX_NATIVE_xxx values.
+		 */
+		if (fp->code.code.r500.inst_end >= 255 || fp->code.constants.Count > 255)
+			rc_error(&compiler.Base, "Program is too big (upgrade to r300g to avoid this limitation).\n");
+	}
+
 	fp->error = compiler.Base.Error;
 
 	fp->InputsRead = compiler.Base.Program.InputsRead;