1 files changed, 123 insertions, 0 deletions
diff --git a/src/VBox/GuestHost/OpenGL/packer/pack_lights.c b/src/VBox/GuestHost/OpenGL/packer/pack_lights.c
new file mode 100644
index 00000000..a2c88f9e
--- /dev/null
+++ b/src/VBox/GuestHost/OpenGL/packer/pack_lights.c
@@ -0,0 +1,123 @@
+/* Copyright (c) 2001, Stanford University
+ * All rights reserved
+ *
+ * See the file LICENSE.txt for information on redistributing this software.
+ */
+
+#include "packer.h"
+#include "cr_error.h"
+
+static GLboolean __handleLightData(GLenum light, GLenum pname, const GLfloat *params)
+{
+    CR_GET_PACKER_CONTEXT(pc);
+    unsigned int packet_length = sizeof(int) + sizeof(light) + sizeof(pname);
+    unsigned int params_length = 0;
+    unsigned char *data_ptr;
+    switch(pname)
+    {
+        case GL_AMBIENT:
+        case GL_DIFFUSE:
+        case GL_SPECULAR:
+        case GL_POSITION:
+            params_length = 4*sizeof(*params);
+            break;
+        case GL_SPOT_DIRECTION:
+            params_length = 3*sizeof(*params);
+            break;
+        case GL_SPOT_EXPONENT:
+        case GL_SPOT_CUTOFF:
+        case GL_CONSTANT_ATTENUATION:
+        case GL_LINEAR_ATTENUATION:
+        case GL_QUADRATIC_ATTENUATION:
+            params_length = sizeof(*params);
+            break;
+        default:
+            __PackError(__LINE__, __FILE__, GL_INVALID_ENUM,
+                                     "crPackLight(bad pname)");
+            return GL_FALSE;
+    }
+    packet_length += params_length;
+    CR_GET_BUFFERED_POINTER(pc, packet_length);
+    WRITE_DATA(0, int, packet_length);
+    WRITE_DATA(sizeof(int) + 0, GLenum, light);
+    WRITE_DATA(sizeof(int) + 4, GLenum, pname);
+    WRITE_DATA(sizeof(int) + 8, GLfloat, params[0]);
+    if (params_length > sizeof(*params)) 
+    {
+        WRITE_DATA(sizeof(int) + 12, GLfloat, params[1]);
+        WRITE_DATA(sizeof(int) + 16, GLfloat, params[2]);
+    }
+    if (params_length > 3*sizeof(*params)) 
+    {
+        WRITE_DATA(sizeof(int) + 20, GLfloat, params[3]);
+    }
+    return GL_TRUE;
+}
+
+void PACK_APIENTRY crPackLightfv (GLenum light, GLenum pname, const GLfloat *params)
+{
+    CR_GET_PACKER_CONTEXT(pc);
+    if (__handleLightData(light, pname, params))
+        WRITE_OPCODE(pc, CR_LIGHTFV_OPCODE);
+    CR_UNLOCK_PACKER_CONTEXT(pc);
+}
+
+void PACK_APIENTRY crPackLightiv (GLenum light, GLenum pname, const GLint *params)
+{
+    /* floats and ints are the same size, so the packing should be the same */
+    CR_GET_PACKER_CONTEXT(pc);
+    if (__handleLightData(light, pname, (const GLfloat *) params))
+        WRITE_OPCODE(pc, CR_LIGHTIV_OPCODE);
+    CR_UNLOCK_PACKER_CONTEXT(pc);
+}
+
+static GLboolean __handleLightModelData(GLenum pname, const GLfloat *params)
+{
+    CR_GET_PACKER_CONTEXT(pc);
+    unsigned int packet_length = sizeof(int) + sizeof(pname);
+    unsigned int params_length = 0;
+    unsigned char *data_ptr;
+    switch(pname)
+    {
+        case GL_LIGHT_MODEL_AMBIENT:
+            params_length = 4*sizeof(*params);
+            break;
+        case GL_LIGHT_MODEL_TWO_SIDE:
+        case GL_LIGHT_MODEL_LOCAL_VIEWER:
+            params_length = sizeof(*params);
+            break;
+        default:
+            __PackError(__LINE__, __FILE__, GL_INVALID_ENUM,
+                                     "crPackLightModel(bad pname)");
+            return GL_FALSE;
+    }
+    packet_length += params_length;
+    CR_GET_BUFFERED_POINTER(pc, packet_length);
+    WRITE_DATA(0, int, packet_length);
+    WRITE_DATA(sizeof(int) + 0, GLenum, pname);
+    WRITE_DATA(sizeof(int) + 4, GLfloat, params[0]);
+    if (params_length > sizeof(*params))
+    {
+        WRITE_DATA(sizeof(int) + 8, GLfloat, params[1]);
+        WRITE_DATA(sizeof(int) + 12, GLfloat, params[2]);
+        WRITE_DATA(sizeof(int) + 16, GLfloat, params[3]);
+    }
+    return GL_TRUE;
+}
+
+void PACK_APIENTRY crPackLightModelfv (GLenum pname, const GLfloat *params)
+{
+    CR_GET_PACKER_CONTEXT(pc);
+    if (__handleLightModelData(pname, params))
+        WRITE_OPCODE(pc, CR_LIGHTMODELFV_OPCODE);
+    CR_UNLOCK_PACKER_CONTEXT(pc);
+}
+
+void PACK_APIENTRY crPackLightModeliv (GLenum pname, const GLint *params)
+{
+    /* floats and ints are the same size, so the packing should be the same */
+    CR_GET_PACKER_CONTEXT(pc);
+    if (__handleLightModelData(pname, (const GLfloat *) params))
+        WRITE_OPCODE(pc, CR_LIGHTMODELIV_OPCODE);
+    CR_UNLOCK_PACKER_CONTEXT(pc);
+}