From 98ee6739d97b5592a7dad0b453c78e180a51ad50 Mon Sep 17 00:00:00 2001
From: Chia-I Wu <olv@lunarg.com>
Date: Tue, 7 Dec 2010 21:33:53 +0800
Subject: vbo: Fix GLES2 glVertexAttrib.

Attribute 0 has no special meaning in GLES2.  Add VertexAttrib4f_nopos
for that purpose and make _es_VertexAttrib* call the new function.

Rename _vbo_* to _es_* to avoid confusion.  These functions are only
used by GLES, and now some of them (_es_VertexAttrib*) even behave
differently than vbo_VertexAttrib*.
---
 src/mesa/main/APIspec.xml   | 52 ++++++++++++++++++++---------------------
 src/mesa/vbo/vbo.h          | 26 ++++++++++-----------
 src/mesa/vbo/vbo_exec_api.c | 56 ++++++++++++++++++++++++++++-----------------
 3 files changed, 74 insertions(+), 60 deletions(-)

(limited to 'src')

diff --git a/src/mesa/main/APIspec.xml b/src/mesa/main/APIspec.xml
index 4dc0b0d4851..16d0c9413d0 100644
--- a/src/mesa/main/APIspec.xml
+++ b/src/mesa/main/APIspec.xml
@@ -3536,7 +3536,7 @@
 <api name="mesa" implementation="true">
 	<category name="MESA"/>
 
-	<function name="Color4f"  default_prefix="_vbo_" template="Color" gltype="GLfloat" vector_size="4" expand_vector="true"/>
+	<function name="Color4f"  default_prefix="_es_" template="Color" gltype="GLfloat" vector_size="4" expand_vector="true"/>
 	<function name="ClipPlane" template="ClipPlane" gltype="GLdouble"/>
 	<function name="CullFace" template="CullFace"/>
 
@@ -3554,8 +3554,8 @@
 
 	<function name="LineWidth" template="LineWidth" gltype="GLfloat"/>
 
-	<function name="Materialf" default_prefix="_vbo_" template="Material" gltype="GLfloat" expand_vector="true"/>
-	<function name="Materialfv" default_prefix="_vbo_" template="Material" gltype="GLfloat"/>
+	<function name="Materialf" default_prefix="_es_" template="Material" gltype="GLfloat" expand_vector="true"/>
+	<function name="Materialfv" default_prefix="_es_" template="Material" gltype="GLfloat"/>
 
 	<function name="PointSize" template="PointSize" gltype="GLfloat"/>
 	<function name="PointSizePointer" template="PointSizePointer"/>
@@ -3650,7 +3650,7 @@
 	<function name="EnableClientState" template="EnableClientState"/>
 
 	<function name="GetPointerv" template="GetPointer"/>
-	<function name="Normal3f" default_prefix="_vbo_" template="Normal" gltype="GLfloat" expand_vector="true"/>
+	<function name="Normal3f" default_prefix="_es_" template="Normal" gltype="GLfloat" expand_vector="true"/>
 	<function name="NormalPointer" template="NormalPointer"/>
 	<function name="TexCoordPointer" template="TexCoordPointer"/>
 	<function name="VertexPointer" template="VertexPointer"/>
@@ -3679,7 +3679,7 @@
 	<function name="ActiveTextureARB" template="ActiveTexture"/>
 	<function name="ClientActiveTextureARB" template="ClientActiveTexture"/>
 
-	<function name="MultiTexCoord4f" default_prefix="_vbo_" template="MultiTexCoord" gltype="GLfloat" vector_size="4" expand_vector="true"/>
+	<function name="MultiTexCoord4f" default_prefix="_es_" template="MultiTexCoord" gltype="GLfloat" vector_size="4" expand_vector="true"/>
 
 	<function name="SampleCoverageARB" template="SampleCoverage" gltype="GLclampf"/>
 
@@ -3691,14 +3691,14 @@
 	<function name="PointParameterf" template="PointParameter" gltype="GLfloat" expand_vector="true"/>
 	<function name="PointParameterfv" template="PointParameter" gltype="GLfloat"/>
 
-	<function name="VertexAttrib1f" default_prefix="_vbo_" template="VertexAttrib" gltype="GLfloat" vector_size="1" expand_vector="true"/>
-	<function name="VertexAttrib2f" default_prefix="_vbo_" template="VertexAttrib" gltype="GLfloat" vector_size="2" expand_vector="true"/>
-	<function name="VertexAttrib3f" default_prefix="_vbo_" template="VertexAttrib" gltype="GLfloat" vector_size="3" expand_vector="true"/>
-	<function name="VertexAttrib4f" default_prefix="_vbo_" template="VertexAttrib" gltype="GLfloat" vector_size="4" expand_vector="true"/>
-	<function name="VertexAttrib1fv" default_prefix="_vbo_" template="VertexAttrib" gltype="GLfloat" vector_size="1"/>
-	<function name="VertexAttrib2fv" default_prefix="_vbo_" template="VertexAttrib" gltype="GLfloat" vector_size="2"/>
-	<function name="VertexAttrib3fv" default_prefix="_vbo_" template="VertexAttrib" gltype="GLfloat" vector_size="3"/>
-	<function name="VertexAttrib4fv" default_prefix="_vbo_" template="VertexAttrib" gltype="GLfloat" vector_size="4"/>
+	<function name="VertexAttrib1f" default_prefix="_es_" template="VertexAttrib" gltype="GLfloat" vector_size="1" expand_vector="true"/>
+	<function name="VertexAttrib2f" default_prefix="_es_" template="VertexAttrib" gltype="GLfloat" vector_size="2" expand_vector="true"/>
+	<function name="VertexAttrib3f" default_prefix="_es_" template="VertexAttrib" gltype="GLfloat" vector_size="3" expand_vector="true"/>
+	<function name="VertexAttrib4f" default_prefix="_es_" template="VertexAttrib" gltype="GLfloat" vector_size="4" expand_vector="true"/>
+	<function name="VertexAttrib1fv" default_prefix="_es_" template="VertexAttrib" gltype="GLfloat" vector_size="1"/>
+	<function name="VertexAttrib2fv" default_prefix="_es_" template="VertexAttrib" gltype="GLfloat" vector_size="2"/>
+	<function name="VertexAttrib3fv" default_prefix="_es_" template="VertexAttrib" gltype="GLfloat" vector_size="3"/>
+	<function name="VertexAttrib4fv" default_prefix="_es_" template="VertexAttrib" gltype="GLfloat" vector_size="4"/>
 
 	<function name="VertexAttribPointerARB" template="VertexAttribPointer"/>
 	<function name="EnableVertexAttribArrayARB" template="EnableVertexAttribArray"/>
@@ -3850,7 +3850,7 @@
 
 	<category name="OES_matrix_palette"/>
 
-	<function name="Color4f" template="Color" gltype="GLfloat" vector_size="4" expand_vector="true"/>
+	<function name="Color4f" external="true" template="Color" gltype="GLfloat" vector_size="4" expand_vector="true"/>
 	<function name="Color4ub" template="Color" gltype="GLubyte" vector_size="4" expand_vector="true"/>
 	<function name="Color4x" template="Color" gltype="GLfixed" vector_size="4" expand_vector="true"/>
 
@@ -3880,8 +3880,8 @@
 	<function name="LineWidth" template="LineWidth" gltype="GLfloat"/>
 	<function name="LineWidthx" template="LineWidth" gltype="GLfixed"/>
 
-	<function name="Materialf" template="Material" gltype="GLfloat" expand_vector="true"/>
-	<function name="Materialfv" template="Material" gltype="GLfloat"/>
+	<function name="Materialf" external="true" template="Material" gltype="GLfloat" expand_vector="true"/>
+	<function name="Materialfv" external="true" template="Material" gltype="GLfloat"/>
 	<function name="Materialx" template="Material" gltype="GLfixed" expand_vector="true"/>
 	<function name="Materialxv" template="Material" gltype="GLfixed"/>
 
@@ -4012,7 +4012,7 @@
 
 	<function name="GetPointerv" template="GetPointer"/>
 
-	<function name="Normal3f" template="Normal" gltype="GLfloat" expand_vector="true"/>
+	<function name="Normal3f" external="true" template="Normal" gltype="GLfloat" expand_vector="true"/>
 	<function name="Normal3x" template="Normal" gltype="GLfixed" expand_vector="true"/>
 	<function name="NormalPointer" template="NormalPointer"/>
 	<function name="TexCoordPointer" template="TexCoordPointer"/>
@@ -4039,7 +4039,7 @@
 	<function name="ActiveTexture" template="ActiveTexture"/>
 	<function name="ClientActiveTexture" template="ClientActiveTexture"/>
 
-	<function name="MultiTexCoord4f" template="MultiTexCoord" gltype="GLfloat" vector_size="4" expand_vector="true"/>
+	<function name="MultiTexCoord4f" external="true" template="MultiTexCoord" gltype="GLfloat" vector_size="4" expand_vector="true"/>
 
 	<function name="SampleCoverage" template="SampleCoverage" gltype="GLclampf"/>
 	<function name="SampleCoveragex" template="SampleCoverage" gltype="GLclampx"/>
@@ -4227,14 +4227,14 @@
 
 	<function name="BlendFuncSeparate" template="BlendFuncSeparate"/>
 
-	<function name="VertexAttrib1f" template="VertexAttrib" gltype="GLfloat" vector_size="1" expand_vector="true"/>
-	<function name="VertexAttrib2f" template="VertexAttrib" gltype="GLfloat" vector_size="2" expand_vector="true"/>
-	<function name="VertexAttrib3f" template="VertexAttrib" gltype="GLfloat" vector_size="3" expand_vector="true"/>
-	<function name="VertexAttrib4f" template="VertexAttrib" gltype="GLfloat" vector_size="4" expand_vector="true"/>
-	<function name="VertexAttrib1fv" template="VertexAttrib" gltype="GLfloat" vector_size="1"/>
-	<function name="VertexAttrib2fv" template="VertexAttrib" gltype="GLfloat" vector_size="2"/>
-	<function name="VertexAttrib3fv" template="VertexAttrib" gltype="GLfloat" vector_size="3"/>
-	<function name="VertexAttrib4fv" template="VertexAttrib" gltype="GLfloat" vector_size="4"/>
+	<function name="VertexAttrib1f" external="true" template="VertexAttrib" gltype="GLfloat" vector_size="1" expand_vector="true"/>
+	<function name="VertexAttrib2f" external="true" template="VertexAttrib" gltype="GLfloat" vector_size="2" expand_vector="true"/>
+	<function name="VertexAttrib3f" external="true" template="VertexAttrib" gltype="GLfloat" vector_size="3" expand_vector="true"/>
+	<function name="VertexAttrib4f" external="true" template="VertexAttrib" gltype="GLfloat" vector_size="4" expand_vector="true"/>
+	<function name="VertexAttrib1fv" external="true" template="VertexAttrib" gltype="GLfloat" vector_size="1"/>
+	<function name="VertexAttrib2fv" external="true" template="VertexAttrib" gltype="GLfloat" vector_size="2"/>
+	<function name="VertexAttrib3fv" external="true" template="VertexAttrib" gltype="GLfloat" vector_size="3"/>
+	<function name="VertexAttrib4fv" external="true" template="VertexAttrib" gltype="GLfloat" vector_size="4"/>
 
 	<function name="VertexAttribPointer" template="VertexAttribPointer"/>
 
diff --git a/src/mesa/vbo/vbo.h b/src/mesa/vbo/vbo.h
index 7b8da8eb843..c1406b250ae 100644
--- a/src/mesa/vbo/vbo.h
+++ b/src/mesa/vbo/vbo.h
@@ -128,42 +128,42 @@ void vbo_set_draw_func(struct gl_context *ctx, vbo_draw_func func);
 
 
 void GLAPIENTRY
-_vbo_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a);
+_es_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a);
 
 void GLAPIENTRY
-_vbo_Normal3f(GLfloat x, GLfloat y, GLfloat z);
+_es_Normal3f(GLfloat x, GLfloat y, GLfloat z);
 
 void GLAPIENTRY
-_vbo_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q);
+_es_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q);
 
 void GLAPIENTRY
-_vbo_Materialfv(GLenum face, GLenum pname, const GLfloat *params);
+_es_Materialfv(GLenum face, GLenum pname, const GLfloat *params);
 
 void GLAPIENTRY
-_vbo_Materialf(GLenum face, GLenum pname, GLfloat param);
+_es_Materialf(GLenum face, GLenum pname, GLfloat param);
 
 void GLAPIENTRY
-_vbo_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
+_es_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
 
 void GLAPIENTRY
-_vbo_VertexAttrib1f(GLuint indx, GLfloat x);
+_es_VertexAttrib1f(GLuint indx, GLfloat x);
 
 void GLAPIENTRY
-_vbo_VertexAttrib1fv(GLuint indx, const GLfloat* values);
+_es_VertexAttrib1fv(GLuint indx, const GLfloat* values);
 
 void GLAPIENTRY
-_vbo_VertexAttrib2f(GLuint indx, GLfloat x, GLfloat y);
+_es_VertexAttrib2f(GLuint indx, GLfloat x, GLfloat y);
 
 void GLAPIENTRY
-_vbo_VertexAttrib2fv(GLuint indx, const GLfloat* values);
+_es_VertexAttrib2fv(GLuint indx, const GLfloat* values);
 
 void GLAPIENTRY
-_vbo_VertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z);
+_es_VertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z);
 
 void GLAPIENTRY
-_vbo_VertexAttrib3fv(GLuint indx, const GLfloat* values);
+_es_VertexAttrib3fv(GLuint indx, const GLfloat* values);
 
 void GLAPIENTRY
-_vbo_VertexAttrib4fv(GLuint indx, const GLfloat* values);
+_es_VertexAttrib4fv(GLuint indx, const GLfloat* values);
 
 #endif
diff --git a/src/mesa/vbo/vbo_exec_api.c b/src/mesa/vbo/vbo_exec_api.c
index 29cd4254d5b..fb981ccc3bc 100644
--- a/src/mesa/vbo/vbo_exec_api.c
+++ b/src/mesa/vbo/vbo_exec_api.c
@@ -972,35 +972,35 @@ static void reset_attrfv( struct vbo_exec_context *exec )
       
 
 void GLAPIENTRY
-_vbo_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a)
+_es_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a)
 {
    vbo_Color4f(r, g, b, a);
 }
 
 
 void GLAPIENTRY
-_vbo_Normal3f(GLfloat x, GLfloat y, GLfloat z)
+_es_Normal3f(GLfloat x, GLfloat y, GLfloat z)
 {
    vbo_Normal3f(x, y, z);
 }
 
 
 void GLAPIENTRY
-_vbo_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q)
+_es_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q)
 {
    vbo_MultiTexCoord4f(target, s, t, r, q);
 }
 
 
 void GLAPIENTRY
-_vbo_Materialfv(GLenum face, GLenum pname, const GLfloat *params)
+_es_Materialfv(GLenum face, GLenum pname, const GLfloat *params)
 {
    vbo_Materialfv(face, pname, params);
 }
 
 
 void GLAPIENTRY
-_vbo_Materialf(GLenum face, GLenum pname, GLfloat param)
+_es_Materialf(GLenum face, GLenum pname, GLfloat param)
 {
    GLfloat p[4];
    p[0] = param;
@@ -1009,57 +1009,71 @@ _vbo_Materialf(GLenum face, GLenum pname, GLfloat param)
 }
 
 
+/**
+ * A special version of glVertexAttrib4f that does not treat index 0 as
+ * VBO_ATTRIB_POS.
+ */
+static void
+VertexAttrib4f_nopos(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   if (index < MAX_VERTEX_GENERIC_ATTRIBS)
+      ATTR(VBO_ATTRIB_GENERIC0 + index, 4, x, y, z, w);
+   else
+      ERROR();
+}
+
 void GLAPIENTRY
-_vbo_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
+_es_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
 {
-   vbo_VertexAttrib4fARB(index, x, y, z, w);
+   VertexAttrib4f_nopos(index, x, y, z, w);
 }
 
 
 void GLAPIENTRY
-_vbo_VertexAttrib1f(GLuint indx, GLfloat x)
+_es_VertexAttrib1f(GLuint indx, GLfloat x)
 {
-   vbo_VertexAttrib1fARB(indx, x);
+   VertexAttrib4f_nopos(indx, x, 0.0f, 0.0f, 1.0f);
 }
 
 
 void GLAPIENTRY
-_vbo_VertexAttrib1fv(GLuint indx, const GLfloat* values)
+_es_VertexAttrib1fv(GLuint indx, const GLfloat* values)
 {
-   vbo_VertexAttrib1fvARB(indx, values);
+   VertexAttrib4f_nopos(indx, values[0], 0.0f, 0.0f, 1.0f);
 }
 
 
 void GLAPIENTRY
-_vbo_VertexAttrib2f(GLuint indx, GLfloat x, GLfloat y)
+_es_VertexAttrib2f(GLuint indx, GLfloat x, GLfloat y)
 {
-   vbo_VertexAttrib2fARB(indx, x, y);
+   VertexAttrib4f_nopos(indx, x, y, 0.0f, 1.0f);
 }
 
 
 void GLAPIENTRY
-_vbo_VertexAttrib2fv(GLuint indx, const GLfloat* values)
+_es_VertexAttrib2fv(GLuint indx, const GLfloat* values)
 {
-   vbo_VertexAttrib2fvARB(indx, values);
+   VertexAttrib4f_nopos(indx, values[0], values[1], 0.0f, 1.0f);
 }
 
 
 void GLAPIENTRY
-_vbo_VertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z)
+_es_VertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z)
 {
-   vbo_VertexAttrib3fARB(indx, x, y, z);
+   VertexAttrib4f_nopos(indx, x, y, z, 1.0f);
 }
 
 
 void GLAPIENTRY
-_vbo_VertexAttrib3fv(GLuint indx, const GLfloat* values)
+_es_VertexAttrib3fv(GLuint indx, const GLfloat* values)
 {
-   vbo_VertexAttrib3fvARB(indx, values);
+   VertexAttrib4f_nopos(indx, values[0], values[1], values[2], 1.0f);
 }
 
 
 void GLAPIENTRY
-_vbo_VertexAttrib4fv(GLuint indx, const GLfloat* values)
+_es_VertexAttrib4fv(GLuint indx, const GLfloat* values)
 {
-   vbo_VertexAttrib4fvARB(indx, values);
+   VertexAttrib4f_nopos(indx, values[0], values[1], values[2], values[3]);
 }
-- 
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