mesa: rename PreferDP4 to OptimizeForAOS.

This flag was really just a proxy for determining whether the backend
was vector (AOS) or scalar (SOA). It will be used to apply a future
optimization only for vector backends.

Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>

7 files changed, 12 insertions, 9 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index d6c41e610cc..f9dc068fb7f 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -473,7 +473,7 @@ brw_initialize_context_constants(struct brw_context *brw)
       ctx->ShaderCompilerOptions[i].LowerClipDistance = true;
    }
 
-   ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].PreferDP4 = true;
+   ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = true;
 
    /* ARB_viewport_array */
    if (brw->gen >= 7 && ctx->API == API_OPENGL_CORE) {
diff --git a/src/mesa/drivers/dri/r200/r200_context.c b/src/mesa/drivers/dri/r200/r200_context.c
index 0af6c9a19be..5427fc2059d 100644
--- a/src/mesa/drivers/dri/r200/r200_context.c
+++ b/src/mesa/drivers/dri/r200/r200_context.c
@@ -338,7 +338,7 @@ GLboolean r200CreateContext( gl_api api,
    ctx->Const.MaxDrawBuffers = 1;
    ctx->Const.MaxColorAttachments = 1;
 
-   ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].PreferDP4 = GL_TRUE;
+   ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = GL_TRUE;
 
    /* Install the customized pipeline:
     */
diff --git a/src/mesa/drivers/dri/radeon/radeon_context.c b/src/mesa/drivers/dri/radeon/radeon_context.c
index 66ba229e030..0757f7ec4ad 100644
--- a/src/mesa/drivers/dri/radeon/radeon_context.c
+++ b/src/mesa/drivers/dri/radeon/radeon_context.c
@@ -301,7 +301,7 @@ r100CreateContext( gl_api api,
    ctx->Const.MaxColorAttachments = 1;
    ctx->Const.MaxRenderbufferSize = 2048;
 
-   ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].PreferDP4 = true;
+   ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = true;
 
    /* Install the customized pipeline:
     */
diff --git a/src/mesa/main/ffvertex_prog.c b/src/mesa/main/ffvertex_prog.c
index aec2b2dbc24..4d71c55ee9f 100644
--- a/src/mesa/main/ffvertex_prog.c
+++ b/src/mesa/main/ffvertex_prog.c
@@ -1676,7 +1676,7 @@ _mesa_get_fixed_func_vertex_program(struct gl_context *ctx)
          return NULL;
 
       create_new_program( &key, prog,
-                          ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].PreferDP4,
+                          ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS,
                           ctx->Const.Program[MESA_SHADER_VERTEX].MaxTemps );
 
 #if 0
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 25821324cca..c396609203d 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2760,10 +2760,13 @@ struct gl_shader_compiler_options
    GLuint MaxUnrollIterations;
 
    /**
-    * Prefer DP4 instructions (rather than MUL/MAD) for matrix * vector
-    * operations, such as position transformation.
+    * Optimize code for array of structures backends.
+    *
+    * This is a proxy for:
+    *   - preferring DP4 instructions (rather than MUL/MAD) for
+    *     matrix * vector operations, such as position transformation.
     */
-   GLboolean PreferDP4;
+   GLboolean OptimizeForAOS;
 
    struct gl_sl_pragmas DefaultPragmas; /**< Default #pragma settings */
 };
diff --git a/src/mesa/program/programopt.c b/src/mesa/program/programopt.c
index 7e005722360..92a8831d208 100644
--- a/src/mesa/program/programopt.c
+++ b/src/mesa/program/programopt.c
@@ -218,7 +218,7 @@ _mesa_insert_mvp_mad_code(struct gl_context *ctx, struct gl_vertex_program *vpro
 void
 _mesa_insert_mvp_code(struct gl_context *ctx, struct gl_vertex_program *vprog)
 {
-   if (ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].PreferDP4)
+   if (ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS)
       _mesa_insert_mvp_dp4_code( ctx, vprog );
    else
       _mesa_insert_mvp_mad_code( ctx, vprog );
diff --git a/src/mesa/state_tracker/st_context.c b/src/mesa/state_tracker/st_context.c
index 77db6ab39ba..0ffc7626388 100644
--- a/src/mesa/state_tracker/st_context.c
+++ b/src/mesa/state_tracker/st_context.c
@@ -240,7 +240,7 @@ struct st_context *st_create_context(gl_api api, struct pipe_context *pipe,
     * driver prefers DP4 or MUL/MAD for vertex transformation.
     */
    if (debug_get_option_mesa_mvp_dp4())
-      ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].PreferDP4 = GL_TRUE;
+      ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = GL_TRUE;
 
    return st_create_context_priv(ctx, pipe, options);
 }