commit 2bc2b792782b304b15d8c48b54916a9b3fa3a7ac
author Paul Lind <plind@mips.com> Wed Feb 01 10:54:19 2012 -0800
committer Paul Lind <plind@mips.com> Mon Aug 13 11:41:15 2012 -0700
tree 12bdbda74e161ec1a3874fb873912641315ddb14
parent ae8927aa05adf9e5a00760b45e4634eecf6340e3

Add MIPS support to pixelflinger.

See the comment-block at the top of MIPSAssembler.cpp for
implementation overview.

Change-Id: Id492c10610574af8c89c38d19e12fafc3652c28a

libpixelflinger/codeflinger/texturing.cpp

diff --git a/libpixelflinger/codeflinger/texturing.cpp b/libpixelflinger/codeflinger/texturing.cpp
index 8464fbd..4d5a50f 100644
--- a/libpixelflinger/codeflinger/texturing.cpp
+++ b/libpixelflinger/codeflinger/texturing.cpp
@@ -464,6 +464,9 @@
                 CONTEXT_LOAD(t.reg, generated_vars.texture[i].spill[1]);
             }
 
+            if (registerFile().status() & RegisterFile::OUT_OF_REGISTERS)
+                return;
+
             comment("compute repeat/clamp");
             int u       = scratches.obtain();
             int v       = scratches.obtain();
@@ -472,6 +475,9 @@
             int U = 0;
             int V = 0;
 
+            if (registerFile().status() & RegisterFile::OUT_OF_REGISTERS)
+                return;
+
             CONTEXT_LOAD(width,  generated_vars.texture[i].width);
             CONTEXT_LOAD(height, generated_vars.texture[i].height);
 
@@ -510,6 +516,9 @@
                 U = scratches.obtain();
                 V = scratches.obtain();
 
+                if (registerFile().status() & RegisterFile::OUT_OF_REGISTERS)
+                    return;
+
                 // sample the texel center
                 SUB(AL, 0, u, u, imm(1<<(FRAC_BITS-1)));
                 SUB(AL, 0, v, v, imm(1<<(FRAC_BITS-1)));
@@ -593,6 +602,10 @@
             comment("iterate s,t");
             int dsdx = scratches.obtain();
             int dtdx = scratches.obtain();
+
+            if (registerFile().status() & RegisterFile::OUT_OF_REGISTERS)
+                return;
+
             CONTEXT_LOAD(dsdx, generated_vars.texture[i].dsdx);
             CONTEXT_LOAD(dtdx, generated_vars.texture[i].dtdx);
             ADD(AL, 0, s.reg, s.reg, dsdx);
@@ -611,6 +624,10 @@
             texel.setTo(regs.obtain(), &tmu.format);
             txPtr.setTo(texel.reg, tmu.bits);
             int stride = scratches.obtain();
+
+            if (registerFile().status() & RegisterFile::OUT_OF_REGISTERS)
+                return;
+
             CONTEXT_LOAD(stride,    generated_vars.texture[i].stride);
             CONTEXT_LOAD(txPtr.reg, generated_vars.texture[i].data);
             SMLABB(AL, u, v, stride, u);    // u+v*stride 
@@ -1078,6 +1095,7 @@
 
                 Scratch scratches(registerFile());
                 pixel_t texel(parts.texel[i]);
+
                 if (multiTexture && 
                     tmu.swrap == GGL_NEEDS_WRAP_11 &&
                     tmu.twrap == GGL_NEEDS_WRAP_11)