r300: further cleanup

- move extensions init into seperate function
- move options handling into seperate function
- create new structure to hold options values
- use context->options.hw_tcl_enabled field instead of global hw_tcl_on and future_hw_tcl_on variables

7 files changed, 82 insertions, 85 deletions

diff --git a/src/mesa/drivers/dri/r300/r300_cmdbuf.c b/src/mesa/drivers/dri/r300/r300_cmdbuf.c
index a0d99ddfb67..253378767b7 100644
--- a/src/mesa/drivers/dri/r300/r300_cmdbuf.c
+++ b/src/mesa/drivers/dri/r300/r300_cmdbuf.c
@@ -420,12 +420,11 @@ int check_r500fp_const(GLcontext *ctx, struct radeon_state_atom *atom)
 void r300InitCmdBuf(r300ContextPtr r300)
 {
 	int mtu;
-	int has_tcl = 1;
+	int has_tcl;
 	int is_r500 = 0;
 	int i;
 
-	if (!(r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL))
-		has_tcl = 0;
+	has_tcl = r300->options.hw_tcl_enabled;
 
 	if (r300->radeon.radeonScreen->chip_family >= CHIP_FAMILY_RV515)
 		is_r500 = 1;
diff --git a/src/mesa/drivers/dri/r300/r300_context.c b/src/mesa/drivers/dri/r300/r300_context.c
index 70c7730be9f..3c16e80d2bb 100644
--- a/src/mesa/drivers/dri/r300/r300_context.c
+++ b/src/mesa/drivers/dri/r300/r300_context.c
@@ -72,10 +72,6 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "utils.h"
 #include "xmlpool.h"		/* for symbolic values of enum-type options */
 
-/* hw_tcl_on derives from future_hw_tcl_on when its safe to change it. */
-int future_hw_tcl_on = 1;
-int hw_tcl_on = 1;
-
 #define need_GL_VERSION_2_0
 #define need_GL_ARB_point_parameters
 #define need_GL_ARB_vertex_program
@@ -296,7 +292,7 @@ static void r300InitConstValues(GLcontext *ctx, radeonScreenPtr screen)
 	ctx->Const.MaxDrawBuffers = 1;
 
 	/* currently bogus data */
-	if (screen->chip_flags & RADEON_CHIPSET_TCL) {
+	if (r300->options.hw_tcl_enabled) {
 		ctx->Const.VertexProgram.MaxInstructions = VSF_MAX_FRAGMENT_LENGTH / 4;
 		ctx->Const.VertexProgram.MaxNativeInstructions =
 		  VSF_MAX_FRAGMENT_LENGTH / 4;
@@ -329,6 +325,47 @@ static void r300InitConstValues(GLcontext *ctx, radeonScreenPtr screen)
 	}
 }
 
+static void r300ParseOptions(r300ContextPtr r300, radeonScreenPtr screen)
+{
+	struct r300_options options = { 0 };
+
+	driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
+			    screen->driScreen->myNum, "r300");
+
+	r300->disable_lowimpact_fallback = driQueryOptionb(&r300->radeon.optionCache, "disable_lowimpact_fallback");
+	r300->radeon.initialMaxAnisotropy = driQueryOptionf(&r300->radeon.optionCache, "def_max_anisotropy");
+
+	options.stencil_two_side_disabled = driQueryOptionb(&r300->radeon.optionCache, "disable_stencil_two_side");
+	options.s3tc_force_enabled = driQueryOptionb(&r300->radeon.optionCache, "force_s3tc_enable");
+	options.s3tc_force_disabled = driQueryOptionb(&r300->radeon.optionCache, "disable_s3tc");
+
+	if (!(screen->chip_flags & RADEON_CHIPSET_TCL) || driQueryOptioni(&r300->radeon.optionCache, "tcl_mode") == DRI_CONF_TCL_SW)
+		options.hw_tcl_enabled = 0;
+	else
+		options.hw_tcl_enabled = 1;
+
+	r300->options = options;
+}
+
+static void r300InitGLExtensions(GLcontext *ctx)
+{
+	r300ContextPtr r300 = R300_CONTEXT(ctx);
+
+	driInitExtensions(ctx, card_extensions, GL_TRUE);
+	if (r300->radeon.radeonScreen->kernel_mm)
+		driInitExtensions(ctx, mm_extensions, GL_FALSE);
+
+	if (r300->options.stencil_two_side_disabled)
+		_mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
+
+	if (ctx->Mesa_DXTn && !r300->options.s3tc_force_enabled) {
+		_mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
+		_mesa_enable_extension(ctx, "GL_S3_s3tc");
+	} else if (r300->options.s3tc_force_disabled) {
+		_mesa_disable_extension(ctx, "GL_EXT_texture_compression_s3tc");
+	}
+}
+
 /* Create the device specific rendering context.
  */
 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
@@ -340,7 +377,6 @@ GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 	struct dd_function_table functions;
 	r300ContextPtr r300;
 	GLcontext *ctx;
-	int tcl_mode;
 
 	assert(glVisual);
 	assert(driContextPriv);
@@ -350,11 +386,7 @@ GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 	if (!r300)
 		return GL_FALSE;
 
-	if (!(screen->chip_flags & RADEON_CHIPSET_TCL))
-		hw_tcl_on = future_hw_tcl_on = 0;
-
-	driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
-			    screen->driScreen->myNum, "r300");
+	r300ParseOptions(r300, screen);
 
 	r300_init_vtbl(&r300->radeon);
 
@@ -372,13 +404,14 @@ GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 	}
 
 	ctx = r300->radeon.glCtx;
-	r300InitConstValues(ctx, screen);
 
-	if (hw_tcl_on)
+	if (r300->options.hw_tcl_enabled)
 		ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 
 	ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 
+	r300InitConstValues(ctx, screen);
+
 	/* Initialize the software rasterizer and helper modules.
 	 */
 	_swrast_CreateContext(ctx);
@@ -400,56 +433,21 @@ GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 	_tnl_allow_pixel_fog(ctx, GL_FALSE);
 	_tnl_allow_vertex_fog(ctx, GL_TRUE);
 
+	if (!r300->options.hw_tcl_enabled)
+		r300InitSwtcl(ctx);
+
 	radeon_fbo_init(&r300->radeon);
-   	radeonInitSpanFuncs( ctx );
+	radeonInitSpanFuncs( ctx );
 	r300InitCmdBuf(r300);
 	r300InitState(r300);
 	r300InitShaderFunctions(r300);
-	if (!(screen->chip_flags & RADEON_CHIPSET_TCL))
-		r300InitSwtcl(ctx);
-
-	driInitExtensions(ctx, card_extensions, GL_TRUE);
-	if (r300->radeon.radeonScreen->kernel_mm)
-	  driInitExtensions(ctx, mm_extensions, GL_FALSE);
 
 	if (screen->chip_family == CHIP_FAMILY_RS600 ||	screen->chip_family == CHIP_FAMILY_RS690 ||
 		screen->chip_family == CHIP_FAMILY_RS740) {
 		r300->radeon.texture_row_align = 64;
 	}
 
-	r300->radeon.initialMaxAnisotropy = driQueryOptionf(&r300->radeon.optionCache,
-						     "def_max_anisotropy");
-
-	if (driQueryOptionb(&r300->radeon.optionCache, "disable_stencil_two_side"))
-		_mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
-
-	if (ctx->Mesa_DXTn && !driQueryOptionb(&r300->radeon.optionCache, "disable_s3tc")) {
-		_mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
-		_mesa_enable_extension(ctx, "GL_S3_s3tc");
-	} else if (driQueryOptionb(&r300->radeon.optionCache, "force_s3tc_enable")) {
-		_mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
-	}
-
-	r300->disable_lowimpact_fallback =
-		 driQueryOptionb(&r300->radeon.optionCache, "disable_lowimpact_fallback");
-
-	tcl_mode = driQueryOptioni(&r300->radeon.optionCache, "tcl_mode");
-	if (driQueryOptionb(&r300->radeon.optionCache, "no_rast")) {
-		fprintf(stderr, "disabling 3D acceleration\n");
-#if R200_MERGED
-		FALLBACK(&r300->radeon, RADEON_FALLBACK_DISABLE, 1);
-#endif
-	}
-	if (tcl_mode == DRI_CONF_TCL_SW ||
-	    !(r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
-		if (r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
-			r300->radeon.radeonScreen->chip_flags &=
-			    ~RADEON_CHIPSET_TCL;
-			fprintf(stderr, "Disabling HW TCL support\n");
-		}
-		TCL_FALLBACK(r300->radeon.glCtx,
-			     RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
-	}
+	r300InitGLExtensions(ctx);
 
 	return GL_TRUE;
 }
diff --git a/src/mesa/drivers/dri/r300/r300_context.h b/src/mesa/drivers/dri/r300/r300_context.h
index d45e4beec0b..ad8b5a2ae45 100644
--- a/src/mesa/drivers/dri/r300/r300_context.h
+++ b/src/mesa/drivers/dri/r300/r300_context.h
@@ -412,8 +412,6 @@ struct r300_vertex_shader_state {
 	struct r300_vertex_shader_fragment program;
 };
 
-extern int hw_tcl_on;
-
 #define COLOR_IS_RGBA
 #define TAG(x) r300##x
 #include "tnl_dd/t_dd_vertex.h"
@@ -648,6 +646,14 @@ struct r300_context {
 
 	GLboolean disable_lowimpact_fallback;
 
+	struct r300_options {
+		uint32_t conformance_mode:1;
+		uint32_t hw_tcl_enabled:1;
+		uint32_t s3tc_force_enabled:1;
+		uint32_t s3tc_force_disabled:1;
+		uint32_t stencil_two_side_disabled:1;
+	} options;
+	
 	struct r300_swtcl_info swtcl;
 	GLboolean vap_flush_needed;
 
diff --git a/src/mesa/drivers/dri/r300/r300_emit.c b/src/mesa/drivers/dri/r300/r300_emit.c
index a19b0f19605..20b77bc9aea 100644
--- a/src/mesa/drivers/dri/r300/r300_emit.c
+++ b/src/mesa/drivers/dri/r300/r300_emit.c
@@ -214,7 +214,7 @@ int r300EmitArrays(GLcontext * ctx)
 	struct r300_vertex_program *prog =
 	    (struct r300_vertex_program *)CURRENT_VERTEX_SHADER(ctx);
 
-	if (hw_tcl_on) {
+	if (rmesa->options.hw_tcl_enabled) {
 		inputs = prog->inputs;
 		InputsRead = prog->key.InputsRead;
 		OutputsWritten = prog->key.OutputsWritten;
diff --git a/src/mesa/drivers/dri/r300/r300_ioctl.c b/src/mesa/drivers/dri/r300/r300_ioctl.c
index a7f5121da74..6766eb3eaee 100644
--- a/src/mesa/drivers/dri/r300/r300_ioctl.c
+++ b/src/mesa/drivers/dri/r300/r300_ioctl.c
@@ -215,12 +215,11 @@ static void r300EmitClearState(GLcontext * ctx)
 	BATCH_LOCALS(&r300->radeon);
 	__DRIdrawablePrivate *dPriv = r300->radeon.dri.drawable;
 	int i;
-	int has_tcl = 1;
+	int has_tcl;
 	int is_r500 = 0;
 	GLuint vap_cntl;
 
-	if (!(r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL))
-		has_tcl = 0;
+	has_tcl = r300->options.hw_tcl_enabled;
 
 	if (r300->radeon.radeonScreen->chip_family >= CHIP_FAMILY_RV515)
 		is_r500 = 1;
diff --git a/src/mesa/drivers/dri/r300/r300_render.c b/src/mesa/drivers/dri/r300/r300_render.c
index f87fee4af65..93fdc575885 100644
--- a/src/mesa/drivers/dri/r300/r300_render.c
+++ b/src/mesa/drivers/dri/r300/r300_render.c
@@ -74,8 +74,6 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "r300_emit.h"
 #include "r300_fragprog_common.h"
 
-extern int future_hw_tcl_on;
-
 /**
  * \brief Convert a OpenGL primitive type into a R300 primitive type.
  */
@@ -468,8 +466,8 @@ static GLboolean r300RunNonTCLRender(GLcontext * ctx,
 	if (r300Fallback(ctx) >= R300_FALLBACK_RAST)
 		return GL_TRUE;
 
-	if (!(rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL))
- 	        return GL_TRUE;
+	if (rmesa->options.hw_tcl_enabled == GL_FALSE)
+		return GL_TRUE;
 
 	if (!r300ValidateBuffers(ctx))
 	    return GL_TRUE;
@@ -483,16 +481,14 @@ static GLboolean r300RunTCLRender(GLcontext * ctx,
 	r300ContextPtr rmesa = R300_CONTEXT(ctx);
 	struct r300_vertex_program *vp;
 
-	hw_tcl_on = future_hw_tcl_on;
-
 	if (RADEON_DEBUG & DEBUG_PRIMS)
 		fprintf(stderr, "%s\n", __FUNCTION__);
 
-	if (hw_tcl_on == GL_FALSE)
+	if (rmesa->options.hw_tcl_enabled == GL_FALSE)
 		return GL_TRUE;
 
 	if (r300Fallback(ctx) >= R300_FALLBACK_TCL) {
-		hw_tcl_on = GL_FALSE;
+		rmesa->options.hw_tcl_enabled = GL_FALSE;
 		return GL_TRUE;
 	}
 
@@ -503,7 +499,7 @@ static GLboolean r300RunTCLRender(GLcontext * ctx,
 
 	vp = (struct r300_vertex_program *)CURRENT_VERTEX_SHADER(ctx);
 	if (vp->native == GL_FALSE) {
-		hw_tcl_on = GL_FALSE;
+		rmesa->options.hw_tcl_enabled = GL_FALSE;
 		return GL_TRUE;
 	}
 
diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c
index 7a025aa56f5..873ac4aaec6 100644
--- a/src/mesa/drivers/dri/r300/r300_state.c
+++ b/src/mesa/drivers/dri/r300/r300_state.c
@@ -67,8 +67,6 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include "drirenderbuffer.h"
 
-extern int future_hw_tcl_on;
-
 static void r300BlendColor(GLcontext * ctx, const GLfloat cf[4])
 {
 	r300ContextPtr rmesa = R300_CONTEXT(ctx);
@@ -367,7 +365,7 @@ static void r300ClipPlane( GLcontext *ctx, GLenum plane, const GLfloat *eq )
 	GLint *ip;
 
 	/* no VAP UCP on non-TCL chipsets */
-	if (!(rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL))
+	if (!rmesa->options.hw_tcl_enabled)
 			return;
 
 	p = (GLint) plane - (GLint) GL_CLIP_PLANE0;
@@ -386,7 +384,7 @@ static void r300SetClipPlaneState(GLcontext * ctx, GLenum cap, GLboolean state)
 	GLuint p;
 
 	/* no VAP UCP on non-TCL chipsets */
-	if (!(r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL))
+	if (!r300->options.hw_tcl_enabled)
 		return;
 
 	p = cap - GL_CLIP_PLANE0;
@@ -1416,8 +1414,9 @@ static void r300SetupRSUnit(GLcontext * ctx)
 	int fp_reg, high_rr;
 	int col_ip, tex_ip;
 	int rs_tex_count = 0;
-	int i, count, col_fmt;
+	int i, count, col_fmt, hw_tcl_on;
 
+	hw_tcl_on = r300->options.hw_tcl_enabled;
 	if (hw_tcl_on)
 		OutputsWritten.vp_outputs = CURRENT_VERTEX_SHADER(ctx)->key.OutputsWritten;
 	else
@@ -1552,8 +1551,9 @@ static void r500SetupRSUnit(GLcontext * ctx)
 	int fp_reg, high_rr;
 	int col_ip, tex_ip;
 	int rs_tex_count = 0;
-	int i, count, col_fmt;
+	int i, count, col_fmt, hw_tcl_on;
 
+	hw_tcl_on = r300->options.hw_tcl_enabled;
 	if (hw_tcl_on)
 		OutputsWritten.vp_outputs = CURRENT_VERTEX_SHADER(ctx)->key.OutputsWritten;
 	else
@@ -1764,7 +1764,7 @@ static void r300VapCntl(r300ContextPtr rmesa, GLuint input_count,
     pvs_num_cntrls = MIN2(6, vtx_mem_size/temp_count);
 
     R300_STATECHANGE(rmesa, vap_cntl);
-    if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
+    if (rmesa->options.hw_tcl_enabled) {
 	rmesa->hw.vap_cntl.cmd[R300_VAP_CNTL_INSTR] =
 	    (pvs_num_slots << R300_PVS_NUM_SLOTS_SHIFT) |
 	    (pvs_num_cntrls << R300_PVS_NUM_CNTLRS_SHIFT) |
@@ -1894,7 +1894,7 @@ static void r300SetupVertexProgram(r300ContextPtr rmesa)
 	   0x400 area might have something to do with pixel shaders as it appears right after pfs programming.
 	   0x406 is set to { 0.0, 0.0, 1.0, 0.0 } most of the time but should change with smooth points and in other rare cases. */
 	//setup_vertex_shader_fragment(rmesa, 0x406, &unk4);
-	if (hw_tcl_on && ((struct r300_vertex_program *)CURRENT_VERTEX_SHADER(ctx))->translated) {
+	if (rmesa->options.hw_tcl_enabled && ((struct r300_vertex_program *)CURRENT_VERTEX_SHADER(ctx))->translated) {
 		r300SetupRealVertexProgram(rmesa);
 	} else {
 		/* FIXME: This needs to be replaced by vertex shader generation code. */
@@ -1972,10 +1972,9 @@ static void r300Enable(GLcontext * ctx, GLenum cap, GLboolean state)
 static void r300ResetHwState(r300ContextPtr r300)
 {
 	GLcontext *ctx = r300->radeon.glCtx;
-	int has_tcl = 1;
+	int has_tcl;
 
-	if (!(r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL))
-		has_tcl = 0;
+	has_tcl = r300->options.hw_tcl_enabled;
 
 	if (RADEON_DEBUG & DEBUG_STATE)
 		fprintf(stderr, "%s\n", __FUNCTION__);
@@ -2193,7 +2192,7 @@ void r300UpdateShaders(r300ContextPtr rmesa)
 
 	ctx = rmesa->radeon.glCtx;
 
-	if (rmesa->radeon.NewGLState && hw_tcl_on) {
+	if (rmesa->radeon.NewGLState && rmesa->options.hw_tcl_enabled) {
 		rmesa->radeon.NewGLState = 0;
 
 		for (i = _TNL_FIRST_MAT; i <= _TNL_LAST_MAT; i++) {
@@ -2217,7 +2216,7 @@ void r300UpdateShaders(r300ContextPtr rmesa)
 		   r300TranslateVertexShader(vp); */
 		if (vp->translated == GL_FALSE) {
 			fprintf(stderr, "Failing back to sw-tcl\n");
-			hw_tcl_on = future_hw_tcl_on = 0;
+			rmesa->options.hw_tcl_enabled = 0;
 			r300ResetHwState(rmesa);
 
 			r300UpdateStateParameters(ctx, _NEW_PROGRAM |
@@ -2425,7 +2424,7 @@ void r300UpdateShaderStates(r300ContextPtr rmesa)
 
 	rmesa->vtbl.SetupRSUnit(ctx);
 
-	if ((rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL))
+	if (rmesa->options.hw_tcl_enabled)
 		r300SetupVertexProgram(rmesa);
 }