Blending and viewports

rep · Nov 16, 2010 · 473abbd · 473abbd
1 parent 8311d8a
commit 473abbd
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Showing 3 changed files with 31 additions and 4 deletions.
diff --git a/samples/rsxTest/include/rsxutil.h b/samples/rsxTest/include/rsxutil.h
@@ -1,5 +1,8 @@
 #pragma once
 
+#include <sysutil/video.h>
+#include <rsx/gcm.h>
+
 extern u32 *buffer[2];
 extern gcmContextData *context; 
 extern VideoResolution res;

diff --git a/samples/rsxTest/source/main.c b/samples/rsxTest/source/main.c
@@ -6,10 +6,8 @@
 #include <unistd.h>
 #include <math.h>
 
-#include <sysutil/video.h>
-#include <rsx/gcm.h>
-#include <rsx/reality.h>
 #include <rsx/commands.h>
+#include <rsx/nv40.h>
 
 #include <io/pad.h>
 
@@ -18,6 +16,7 @@
 #include "ball.bin.h"
 #include "texture.h"
 #include "rsxutil.h"
+#include "nvshader.h"
 
 int currentBuffer = 0;
 realityTexture *ball; // Texture.
@@ -26,17 +25,38 @@ void drawFrame(int buffer, long frame) {
 
 	setupRenderTarget(buffer);
 
+	realityViewportTranslate(context, 0.0, 0.0, 0.0, 0.0);
+	realityViewportScale(context, 1.0, 1.0, 1.0, 0.0); 
+
+	realityZControl(context, 0, 1, 1); // disable viewport culling
+
+	// Enable alpha blending.
+	realityBlendFunc(context,
+		NV30_3D_BLEND_FUNC_SRC_RGB_SRC_ALPHA |
+		NV30_3D_BLEND_FUNC_SRC_ALPHA_SRC_ALPHA,
+		NV30_3D_BLEND_FUNC_DST_RGB_ONE_MINUS_SRC_ALPHA |
+		NV30_3D_BLEND_FUNC_DST_ALPHA_ZERO);
+	realityBlendEquation(context, NV40_3D_BLEND_EQUATION_RGB_FUNC_ADD |
+		NV40_3D_BLEND_EQUATION_ALPHA_FUNC_ADD);
+	realityBlendEnable(context, 1);
+
+	realityViewport(context, res.width, res.height);
+
 	// Just because we can only set the clear color, dosen't mean it has to be boring
 	double cycle = (frame % 200)/100.0;
 	uint8_t color = (sin(cycle*M_PI) + 1.0) * 127 ;
 
 	// set the clear color
-	realitySetClearColor(context, color << 8 | color << 16); // This is the most Hidious colour ever.
+	realitySetClearColor(context, color << 8 | color << 16); 
+	// and the depth clear value
+	realitySetClearDepthValue(context, 0xffff);
 	// Clear the buffers
 	realityClearBuffers(context, REALITY_CLEAR_BUFFERS_COLOR_R |
 				     REALITY_CLEAR_BUFFERS_COLOR_G |
 				     REALITY_CLEAR_BUFFERS_COLOR_B |
 				     REALITY_CLEAR_BUFFERS_DEPTH);
+
+
 }
 
 void unload_modules() {

diff --git a/samples/rsxTest/source/rsxutil.c b/samples/rsxTest/source/rsxutil.c
@@ -10,6 +10,7 @@
 #include <rsx/commands.h>
 
 #include "rsxutil.h"
+#include "nvshader.h"
 
 gcmContextData *context; // Context to keep track of the RSX buffer.
 
@@ -74,6 +75,9 @@ void init_screen() {
 
 	assert(realityAddressToOffset(depth_buffer, &depth_offset) == 0);
 
+	// load fragment shader
+
+
 	gcmResetFlipStatus();
 	flip(1);
 }