mesa: Add support for ARB_depth_clamp.

[mesa.git] / src / mesa / shader / arbprogram.c

diff --git a/src/mesa/shader/arbprogram.c b/src/mesa/shader/arbprogram.c
index 760dac23993ed14f52001e894fed73798a1a31a7..4d8cff070012b46abae9d082679e86d7af31b8dc 100644 (file)
--- a/src/mesa/shader/arbprogram.c
+++ b/src/mesa/shader/arbprogram.c
@@ -74,8 +74,6 @@ _mesa_BindProgram(GLenum target, GLuint id)
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM);
-
    /* Error-check target and get curProg */
    if ((target == GL_VERTEX_PROGRAM_ARB) && /* == GL_VERTEX_PROGRAM_NV */
         (ctx->Extensions.NV_vertex_program ||
@@ -132,6 +130,9 @@ _mesa_BindProgram(GLenum target, GLuint id)
       return;
    }
 
+   /* signal new program (and its new constants) */
+   FLUSH_VERTICES(ctx, _NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS);
+
    /* bind newProg */
    if (target == GL_VERTEX_PROGRAM_ARB) { /* == GL_VERTEX_PROGRAM_NV */
       _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current,
@@ -253,6 +254,8 @@ _mesa_EnableVertexAttribArrayARB(GLuint index)
       return;
    }
 
+   ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib));
+
    FLUSH_VERTICES(ctx, _NEW_ARRAY);
    ctx->Array.ArrayObj->VertexAttrib[index].Enabled = GL_TRUE;
    ctx->Array.ArrayObj->_Enabled |= _NEW_ARRAY_ATTRIB(index);
@@ -272,6 +275,8 @@ _mesa_DisableVertexAttribArrayARB(GLuint index)
       return;
    }
 
+   ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib));
+
    FLUSH_VERTICES(ctx, _NEW_ARRAY);
    ctx->Array.ArrayObj->VertexAttrib[index].Enabled = GL_FALSE;
    ctx->Array.ArrayObj->_Enabled &= ~_NEW_ARRAY_ATTRIB(index);
@@ -298,32 +303,41 @@ _mesa_GetVertexAttribdvARB(GLuint index, GLenum pname, GLdouble *params)
 }
 
 
+/**
+ * Return info for a generic vertex attribute array (no alias with
+ * legacy vertex attributes (pos, normal, color, etc)).
+ */
 void GLAPIENTRY
 _mesa_GetVertexAttribfvARB(GLuint index, GLenum pname, GLfloat *params)
 {
+   const struct gl_client_array *array;
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   if (index >= MAX_VERTEX_PROGRAM_ATTRIBS) {
+   if (index >= MAX_VERTEX_GENERIC_ATTRIBS) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribfvARB(index)");
       return;
    }
 
+   ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib));
+
+   array = &ctx->Array.ArrayObj->VertexAttrib[index];
+
    switch (pname) {
       case GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB:
-         params[0] = (GLfloat) ctx->Array.ArrayObj->VertexAttrib[index].Enabled;
+         params[0] = (GLfloat) array->Enabled;
          break;
       case GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB:
-         params[0] = (GLfloat) ctx->Array.ArrayObj->VertexAttrib[index].Size;
+         params[0] = (GLfloat) array->Size;
          break;
       case GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB:
-         params[0] = (GLfloat) ctx->Array.ArrayObj->VertexAttrib[index].Stride;
+         params[0] = (GLfloat) array->Stride;
          break;
       case GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB:
-         params[0] = (GLfloat) ctx->Array.ArrayObj->VertexAttrib[index].Type;
+         params[0] = (GLfloat) array->Type;
          break;
       case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB:
-         params[0] = ctx->Array.ArrayObj->VertexAttrib[index].Normalized;
+         params[0] = array->Normalized;
          break;
       case GL_CURRENT_VERTEX_ATTRIB_ARB:
          if (index == 0) {
@@ -335,11 +349,7 @@ _mesa_GetVertexAttribfvARB(GLuint index, GLenum pname, GLfloat *params)
          COPY_4V(params, ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + index]);
          break;
       case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING_ARB:
-         if (!ctx->Extensions.ARB_vertex_buffer_object) {
-            _mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribfvARB(pname)");
-            return;
-         }
-         params[0] = (GLfloat) ctx->Array.ArrayObj->VertexAttrib[index].BufferObj->Name;
+         params[0] = (GLfloat) array->BufferObj->Name;
          break;
       default:
          _mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribfvARB(pname)");
@@ -383,6 +393,8 @@ _mesa_GetVertexAttribPointervARB(GLuint index, GLenum pname, GLvoid **pointer)
       return;
    }
 
+   ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib));
+
    *pointer = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[index].Ptr;
 }
 
@@ -493,7 +505,7 @@ _mesa_ProgramEnvParameter4fARB(GLenum target, GLuint index,
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+   FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
 
    if (target == GL_FRAGMENT_PROGRAM_ARB
        && ctx->Extensions.ARB_fragment_program) {
@@ -541,7 +553,7 @@ _mesa_ProgramEnvParameters4fvEXT(GLenum target, GLuint index, GLsizei count,
    GLfloat * dest;
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+   FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
 
    if (count <= 0) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glProgramEnvParameters4fv(count)");
@@ -599,10 +611,7 @@ _mesa_GetProgramEnvParameterfvARB(GLenum target, GLuint index,
 {
    GET_CURRENT_CONTEXT(ctx);
 
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM);
-
-   if (!ctx->_CurrentProgram)
-      ASSERT_OUTSIDE_BEGIN_END(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    if (target == GL_FRAGMENT_PROGRAM_ARB
        && ctx->Extensions.ARB_fragment_program) {
@@ -638,7 +647,7 @@ _mesa_ProgramLocalParameter4fARB(GLenum target, GLuint index,
    struct gl_program *prog;
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+   FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
 
    if ((target == GL_FRAGMENT_PROGRAM_NV
         && ctx->Extensions.NV_fragment_program) ||
@@ -692,7 +701,7 @@ _mesa_ProgramLocalParameters4fvEXT(GLenum target, GLuint index, GLsizei count,
    GLint i;
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+   FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
 
    if (count <= 0) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glProgramLocalParameters4fv(count)");
@@ -807,6 +816,7 @@ _mesa_GetProgramLocalParameterdvARB(GLenum target, GLuint index,
 {
    GET_CURRENT_CONTEXT(ctx);
    GLfloat floatParams[4];
+   ASSIGN_4V(floatParams, 0.0F, 0.0F, 0.0F, 0.0F);
    _mesa_GetProgramLocalParameterfvARB(target, index, floatParams);
    if (ctx->ErrorValue == GL_NO_ERROR) {
       COPY_4V(params, floatParams);
@@ -821,8 +831,7 @@ _mesa_GetProgramivARB(GLenum target, GLenum pname, GLint *params)
    struct gl_program *prog;
    GET_CURRENT_CONTEXT(ctx);
 
-   if (!ctx->_CurrentProgram)
-      ASSERT_OUTSIDE_BEGIN_END(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    if (target == GL_VERTEX_PROGRAM_ARB
        && ctx->Extensions.ARB_vertex_program) {
@@ -992,6 +1001,9 @@ _mesa_GetProgramivARB(GLenum target, GLenum pname, GLint *params)
             _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramivARB(pname)");
             return;
       }
+   } else {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramivARB(pname)");
+      return;
    }
 }
 
@@ -1003,8 +1015,7 @@ _mesa_GetProgramStringARB(GLenum target, GLenum pname, GLvoid *string)
    char *dst = (char *) string;
    GET_CURRENT_CONTEXT(ctx);
 
-   if (!ctx->_CurrentProgram)
-      ASSERT_OUTSIDE_BEGIN_END(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    if (target == GL_VERTEX_PROGRAM_ARB) {
       prog = &(ctx->VertexProgram.Current->Base);